1 /* 2 * Copyright (c) 2010 Broadcom Corporation 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 ANY 11 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION 13 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN 14 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 15 */ 16 17 /* Toplevel file. Relies on dhd_linux.c to send commands to the dongle. */ 18 19 #include <linux/kernel.h> 20 #include <linux/etherdevice.h> 21 #include <linux/module.h> 22 #include <linux/vmalloc.h> 23 #include <net/cfg80211.h> 24 #include <net/netlink.h> 25 26 #include <brcmu_utils.h> 27 #include <defs.h> 28 #include <brcmu_wifi.h> 29 #include "core.h" 30 #include "debug.h" 31 #include "tracepoint.h" 32 #include "fwil_types.h" 33 #include "p2p.h" 34 #include "btcoex.h" 35 #include "pno.h" 36 #include "cfg80211.h" 37 #include "feature.h" 38 #include "fwil.h" 39 #include "proto.h" 40 #include "vendor.h" 41 #include "bus.h" 42 #include "common.h" 43 44 #define BRCMF_SCAN_IE_LEN_MAX 2048 45 46 #define WPA_OUI "\x00\x50\xF2" /* WPA OUI */ 47 #define WPA_OUI_TYPE 1 48 #define RSN_OUI "\x00\x0F\xAC" /* RSN OUI */ 49 #define WME_OUI_TYPE 2 50 #define WPS_OUI_TYPE 4 51 52 #define VS_IE_FIXED_HDR_LEN 6 53 #define WPA_IE_VERSION_LEN 2 54 #define WPA_IE_MIN_OUI_LEN 4 55 #define WPA_IE_SUITE_COUNT_LEN 2 56 57 #define WPA_CIPHER_NONE 0 /* None */ 58 #define WPA_CIPHER_WEP_40 1 /* WEP (40-bit) */ 59 #define WPA_CIPHER_TKIP 2 /* TKIP: default for WPA */ 60 #define WPA_CIPHER_AES_CCM 4 /* AES (CCM) */ 61 #define WPA_CIPHER_WEP_104 5 /* WEP (104-bit) */ 62 63 #define RSN_AKM_NONE 0 /* None (IBSS) */ 64 #define RSN_AKM_UNSPECIFIED 1 /* Over 802.1x */ 65 #define RSN_AKM_PSK 2 /* Pre-shared Key */ 66 #define RSN_AKM_SHA256_1X 5 /* SHA256, 802.1X */ 67 #define RSN_AKM_SHA256_PSK 6 /* SHA256, Pre-shared Key */ 68 #define RSN_CAP_LEN 2 /* Length of RSN capabilities */ 69 #define RSN_CAP_PTK_REPLAY_CNTR_MASK (BIT(2) | BIT(3)) 70 #define RSN_CAP_MFPR_MASK BIT(6) 71 #define RSN_CAP_MFPC_MASK BIT(7) 72 #define RSN_PMKID_COUNT_LEN 2 73 74 #define VNDR_IE_CMD_LEN 4 /* length of the set command 75 * string :"add", "del" (+ NUL) 76 */ 77 #define VNDR_IE_COUNT_OFFSET 4 78 #define VNDR_IE_PKTFLAG_OFFSET 8 79 #define VNDR_IE_VSIE_OFFSET 12 80 #define VNDR_IE_HDR_SIZE 12 81 #define VNDR_IE_PARSE_LIMIT 5 82 83 #define DOT11_MGMT_HDR_LEN 24 /* d11 management header len */ 84 #define DOT11_BCN_PRB_FIXED_LEN 12 /* beacon/probe fixed length */ 85 86 #define BRCMF_SCAN_JOIN_ACTIVE_DWELL_TIME_MS 320 87 #define BRCMF_SCAN_JOIN_PASSIVE_DWELL_TIME_MS 400 88 #define BRCMF_SCAN_JOIN_PROBE_INTERVAL_MS 20 89 90 #define BRCMF_SCAN_CHANNEL_TIME 40 91 #define BRCMF_SCAN_UNASSOC_TIME 40 92 #define BRCMF_SCAN_PASSIVE_TIME 120 93 94 #define BRCMF_ND_INFO_TIMEOUT msecs_to_jiffies(2000) 95 96 #define BRCMF_ASSOC_PARAMS_FIXED_SIZE \ 97 (sizeof(struct brcmf_assoc_params_le) - sizeof(u16)) 98 99 static bool check_vif_up(struct brcmf_cfg80211_vif *vif) 100 { 101 if (!test_bit(BRCMF_VIF_STATUS_READY, &vif->sme_state)) { 102 brcmf_dbg(INFO, "device is not ready : status (%lu)\n", 103 vif->sme_state); 104 return false; 105 } 106 return true; 107 } 108 109 #define RATE_TO_BASE100KBPS(rate) (((rate) * 10) / 2) 110 #define RATETAB_ENT(_rateid, _flags) \ 111 { \ 112 .bitrate = RATE_TO_BASE100KBPS(_rateid), \ 113 .hw_value = (_rateid), \ 114 .flags = (_flags), \ 115 } 116 117 static struct ieee80211_rate __wl_rates[] = { 118 RATETAB_ENT(BRCM_RATE_1M, 0), 119 RATETAB_ENT(BRCM_RATE_2M, IEEE80211_RATE_SHORT_PREAMBLE), 120 RATETAB_ENT(BRCM_RATE_5M5, IEEE80211_RATE_SHORT_PREAMBLE), 121 RATETAB_ENT(BRCM_RATE_11M, IEEE80211_RATE_SHORT_PREAMBLE), 122 RATETAB_ENT(BRCM_RATE_6M, 0), 123 RATETAB_ENT(BRCM_RATE_9M, 0), 124 RATETAB_ENT(BRCM_RATE_12M, 0), 125 RATETAB_ENT(BRCM_RATE_18M, 0), 126 RATETAB_ENT(BRCM_RATE_24M, 0), 127 RATETAB_ENT(BRCM_RATE_36M, 0), 128 RATETAB_ENT(BRCM_RATE_48M, 0), 129 RATETAB_ENT(BRCM_RATE_54M, 0), 130 }; 131 132 #define wl_g_rates (__wl_rates + 0) 133 #define wl_g_rates_size ARRAY_SIZE(__wl_rates) 134 #define wl_a_rates (__wl_rates + 4) 135 #define wl_a_rates_size (wl_g_rates_size - 4) 136 137 #define CHAN2G(_channel, _freq) { \ 138 .band = NL80211_BAND_2GHZ, \ 139 .center_freq = (_freq), \ 140 .hw_value = (_channel), \ 141 .max_antenna_gain = 0, \ 142 .max_power = 30, \ 143 } 144 145 #define CHAN5G(_channel) { \ 146 .band = NL80211_BAND_5GHZ, \ 147 .center_freq = 5000 + (5 * (_channel)), \ 148 .hw_value = (_channel), \ 149 .max_antenna_gain = 0, \ 150 .max_power = 30, \ 151 } 152 153 static struct ieee80211_channel __wl_2ghz_channels[] = { 154 CHAN2G(1, 2412), CHAN2G(2, 2417), CHAN2G(3, 2422), CHAN2G(4, 2427), 155 CHAN2G(5, 2432), CHAN2G(6, 2437), CHAN2G(7, 2442), CHAN2G(8, 2447), 156 CHAN2G(9, 2452), CHAN2G(10, 2457), CHAN2G(11, 2462), CHAN2G(12, 2467), 157 CHAN2G(13, 2472), CHAN2G(14, 2484) 158 }; 159 160 static struct ieee80211_channel __wl_5ghz_channels[] = { 161 CHAN5G(34), CHAN5G(36), CHAN5G(38), CHAN5G(40), CHAN5G(42), 162 CHAN5G(44), CHAN5G(46), CHAN5G(48), CHAN5G(52), CHAN5G(56), 163 CHAN5G(60), CHAN5G(64), CHAN5G(100), CHAN5G(104), CHAN5G(108), 164 CHAN5G(112), CHAN5G(116), CHAN5G(120), CHAN5G(124), CHAN5G(128), 165 CHAN5G(132), CHAN5G(136), CHAN5G(140), CHAN5G(144), CHAN5G(149), 166 CHAN5G(153), CHAN5G(157), CHAN5G(161), CHAN5G(165) 167 }; 168 169 /* Band templates duplicated per wiphy. The channel info 170 * above is added to the band during setup. 171 */ 172 static const struct ieee80211_supported_band __wl_band_2ghz = { 173 .band = NL80211_BAND_2GHZ, 174 .bitrates = wl_g_rates, 175 .n_bitrates = wl_g_rates_size, 176 }; 177 178 static const struct ieee80211_supported_band __wl_band_5ghz = { 179 .band = NL80211_BAND_5GHZ, 180 .bitrates = wl_a_rates, 181 .n_bitrates = wl_a_rates_size, 182 }; 183 184 /* This is to override regulatory domains defined in cfg80211 module (reg.c) 185 * By default world regulatory domain defined in reg.c puts the flags 186 * NL80211_RRF_NO_IR for 5GHz channels (for * 36..48 and 149..165). 187 * With respect to these flags, wpa_supplicant doesn't * start p2p 188 * operations on 5GHz channels. All the changes in world regulatory 189 * domain are to be done here. 190 */ 191 static const struct ieee80211_regdomain brcmf_regdom = { 192 .n_reg_rules = 4, 193 .alpha2 = "99", 194 .reg_rules = { 195 /* IEEE 802.11b/g, channels 1..11 */ 196 REG_RULE(2412-10, 2472+10, 40, 6, 20, 0), 197 /* If any */ 198 /* IEEE 802.11 channel 14 - Only JP enables 199 * this and for 802.11b only 200 */ 201 REG_RULE(2484-10, 2484+10, 20, 6, 20, 0), 202 /* IEEE 802.11a, channel 36..64 */ 203 REG_RULE(5150-10, 5350+10, 80, 6, 20, 0), 204 /* IEEE 802.11a, channel 100..165 */ 205 REG_RULE(5470-10, 5850+10, 80, 6, 20, 0), } 206 }; 207 208 /* Note: brcmf_cipher_suites is an array of int defining which cipher suites 209 * are supported. A pointer to this array and the number of entries is passed 210 * on to upper layers. AES_CMAC defines whether or not the driver supports MFP. 211 * So the cipher suite AES_CMAC has to be the last one in the array, and when 212 * device does not support MFP then the number of suites will be decreased by 1 213 */ 214 static const u32 brcmf_cipher_suites[] = { 215 WLAN_CIPHER_SUITE_WEP40, 216 WLAN_CIPHER_SUITE_WEP104, 217 WLAN_CIPHER_SUITE_TKIP, 218 WLAN_CIPHER_SUITE_CCMP, 219 /* Keep as last entry: */ 220 WLAN_CIPHER_SUITE_AES_CMAC 221 }; 222 223 /* Vendor specific ie. id = 221, oui and type defines exact ie */ 224 struct brcmf_vs_tlv { 225 u8 id; 226 u8 len; 227 u8 oui[3]; 228 u8 oui_type; 229 }; 230 231 struct parsed_vndr_ie_info { 232 u8 *ie_ptr; 233 u32 ie_len; /* total length including id & length field */ 234 struct brcmf_vs_tlv vndrie; 235 }; 236 237 struct parsed_vndr_ies { 238 u32 count; 239 struct parsed_vndr_ie_info ie_info[VNDR_IE_PARSE_LIMIT]; 240 }; 241 242 static u8 nl80211_band_to_fwil(enum nl80211_band band) 243 { 244 switch (band) { 245 case NL80211_BAND_2GHZ: 246 return WLC_BAND_2G; 247 case NL80211_BAND_5GHZ: 248 return WLC_BAND_5G; 249 default: 250 WARN_ON(1); 251 break; 252 } 253 return 0; 254 } 255 256 static u16 chandef_to_chanspec(struct brcmu_d11inf *d11inf, 257 struct cfg80211_chan_def *ch) 258 { 259 struct brcmu_chan ch_inf; 260 s32 primary_offset; 261 262 brcmf_dbg(TRACE, "chandef: control %d center %d width %d\n", 263 ch->chan->center_freq, ch->center_freq1, ch->width); 264 ch_inf.chnum = ieee80211_frequency_to_channel(ch->center_freq1); 265 primary_offset = ch->chan->center_freq - ch->center_freq1; 266 switch (ch->width) { 267 case NL80211_CHAN_WIDTH_20: 268 case NL80211_CHAN_WIDTH_20_NOHT: 269 ch_inf.bw = BRCMU_CHAN_BW_20; 270 WARN_ON(primary_offset != 0); 271 break; 272 case NL80211_CHAN_WIDTH_40: 273 ch_inf.bw = BRCMU_CHAN_BW_40; 274 if (primary_offset > 0) 275 ch_inf.sb = BRCMU_CHAN_SB_U; 276 else 277 ch_inf.sb = BRCMU_CHAN_SB_L; 278 break; 279 case NL80211_CHAN_WIDTH_80: 280 ch_inf.bw = BRCMU_CHAN_BW_80; 281 if (primary_offset == -30) 282 ch_inf.sb = BRCMU_CHAN_SB_LL; 283 else if (primary_offset == -10) 284 ch_inf.sb = BRCMU_CHAN_SB_LU; 285 else if (primary_offset == 10) 286 ch_inf.sb = BRCMU_CHAN_SB_UL; 287 else 288 ch_inf.sb = BRCMU_CHAN_SB_UU; 289 break; 290 case NL80211_CHAN_WIDTH_80P80: 291 case NL80211_CHAN_WIDTH_160: 292 case NL80211_CHAN_WIDTH_5: 293 case NL80211_CHAN_WIDTH_10: 294 default: 295 WARN_ON_ONCE(1); 296 } 297 switch (ch->chan->band) { 298 case NL80211_BAND_2GHZ: 299 ch_inf.band = BRCMU_CHAN_BAND_2G; 300 break; 301 case NL80211_BAND_5GHZ: 302 ch_inf.band = BRCMU_CHAN_BAND_5G; 303 break; 304 case NL80211_BAND_60GHZ: 305 default: 306 WARN_ON_ONCE(1); 307 } 308 d11inf->encchspec(&ch_inf); 309 310 return ch_inf.chspec; 311 } 312 313 u16 channel_to_chanspec(struct brcmu_d11inf *d11inf, 314 struct ieee80211_channel *ch) 315 { 316 struct brcmu_chan ch_inf; 317 318 ch_inf.chnum = ieee80211_frequency_to_channel(ch->center_freq); 319 ch_inf.bw = BRCMU_CHAN_BW_20; 320 d11inf->encchspec(&ch_inf); 321 322 return ch_inf.chspec; 323 } 324 325 /* Traverse a string of 1-byte tag/1-byte length/variable-length value 326 * triples, returning a pointer to the substring whose first element 327 * matches tag 328 */ 329 static const struct brcmf_tlv * 330 brcmf_parse_tlvs(const void *buf, int buflen, uint key) 331 { 332 const struct brcmf_tlv *elt = buf; 333 int totlen = buflen; 334 335 /* find tagged parameter */ 336 while (totlen >= TLV_HDR_LEN) { 337 int len = elt->len; 338 339 /* validate remaining totlen */ 340 if ((elt->id == key) && (totlen >= (len + TLV_HDR_LEN))) 341 return elt; 342 343 elt = (struct brcmf_tlv *)((u8 *)elt + (len + TLV_HDR_LEN)); 344 totlen -= (len + TLV_HDR_LEN); 345 } 346 347 return NULL; 348 } 349 350 /* Is any of the tlvs the expected entry? If 351 * not update the tlvs buffer pointer/length. 352 */ 353 static bool 354 brcmf_tlv_has_ie(const u8 *ie, const u8 **tlvs, u32 *tlvs_len, 355 const u8 *oui, u32 oui_len, u8 type) 356 { 357 /* If the contents match the OUI and the type */ 358 if (ie[TLV_LEN_OFF] >= oui_len + 1 && 359 !memcmp(&ie[TLV_BODY_OFF], oui, oui_len) && 360 type == ie[TLV_BODY_OFF + oui_len]) { 361 return true; 362 } 363 364 if (tlvs == NULL) 365 return false; 366 /* point to the next ie */ 367 ie += ie[TLV_LEN_OFF] + TLV_HDR_LEN; 368 /* calculate the length of the rest of the buffer */ 369 *tlvs_len -= (int)(ie - *tlvs); 370 /* update the pointer to the start of the buffer */ 371 *tlvs = ie; 372 373 return false; 374 } 375 376 static struct brcmf_vs_tlv * 377 brcmf_find_wpaie(const u8 *parse, u32 len) 378 { 379 const struct brcmf_tlv *ie; 380 381 while ((ie = brcmf_parse_tlvs(parse, len, WLAN_EID_VENDOR_SPECIFIC))) { 382 if (brcmf_tlv_has_ie((const u8 *)ie, &parse, &len, 383 WPA_OUI, TLV_OUI_LEN, WPA_OUI_TYPE)) 384 return (struct brcmf_vs_tlv *)ie; 385 } 386 return NULL; 387 } 388 389 static struct brcmf_vs_tlv * 390 brcmf_find_wpsie(const u8 *parse, u32 len) 391 { 392 const struct brcmf_tlv *ie; 393 394 while ((ie = brcmf_parse_tlvs(parse, len, WLAN_EID_VENDOR_SPECIFIC))) { 395 if (brcmf_tlv_has_ie((u8 *)ie, &parse, &len, 396 WPA_OUI, TLV_OUI_LEN, WPS_OUI_TYPE)) 397 return (struct brcmf_vs_tlv *)ie; 398 } 399 return NULL; 400 } 401 402 static int brcmf_vif_change_validate(struct brcmf_cfg80211_info *cfg, 403 struct brcmf_cfg80211_vif *vif, 404 enum nl80211_iftype new_type) 405 { 406 struct brcmf_cfg80211_vif *pos; 407 bool check_combos = false; 408 int ret = 0; 409 struct iface_combination_params params = { 410 .num_different_channels = 1, 411 }; 412 413 list_for_each_entry(pos, &cfg->vif_list, list) 414 if (pos == vif) { 415 params.iftype_num[new_type]++; 416 } else { 417 /* concurrent interfaces so need check combinations */ 418 check_combos = true; 419 params.iftype_num[pos->wdev.iftype]++; 420 } 421 422 if (check_combos) 423 ret = cfg80211_check_combinations(cfg->wiphy, ¶ms); 424 425 return ret; 426 } 427 428 static int brcmf_vif_add_validate(struct brcmf_cfg80211_info *cfg, 429 enum nl80211_iftype new_type) 430 { 431 struct brcmf_cfg80211_vif *pos; 432 struct iface_combination_params params = { 433 .num_different_channels = 1, 434 }; 435 436 list_for_each_entry(pos, &cfg->vif_list, list) 437 params.iftype_num[pos->wdev.iftype]++; 438 439 params.iftype_num[new_type]++; 440 return cfg80211_check_combinations(cfg->wiphy, ¶ms); 441 } 442 443 static void convert_key_from_CPU(struct brcmf_wsec_key *key, 444 struct brcmf_wsec_key_le *key_le) 445 { 446 key_le->index = cpu_to_le32(key->index); 447 key_le->len = cpu_to_le32(key->len); 448 key_le->algo = cpu_to_le32(key->algo); 449 key_le->flags = cpu_to_le32(key->flags); 450 key_le->rxiv.hi = cpu_to_le32(key->rxiv.hi); 451 key_le->rxiv.lo = cpu_to_le16(key->rxiv.lo); 452 key_le->iv_initialized = cpu_to_le32(key->iv_initialized); 453 memcpy(key_le->data, key->data, sizeof(key->data)); 454 memcpy(key_le->ea, key->ea, sizeof(key->ea)); 455 } 456 457 static int 458 send_key_to_dongle(struct brcmf_if *ifp, struct brcmf_wsec_key *key) 459 { 460 int err; 461 struct brcmf_wsec_key_le key_le; 462 463 convert_key_from_CPU(key, &key_le); 464 465 brcmf_netdev_wait_pend8021x(ifp); 466 467 err = brcmf_fil_bsscfg_data_set(ifp, "wsec_key", &key_le, 468 sizeof(key_le)); 469 470 if (err) 471 brcmf_err("wsec_key error (%d)\n", err); 472 return err; 473 } 474 475 static void 476 brcmf_cfg80211_update_proto_addr_mode(struct wireless_dev *wdev) 477 { 478 struct brcmf_cfg80211_vif *vif; 479 struct brcmf_if *ifp; 480 481 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev); 482 ifp = vif->ifp; 483 484 if ((wdev->iftype == NL80211_IFTYPE_ADHOC) || 485 (wdev->iftype == NL80211_IFTYPE_AP) || 486 (wdev->iftype == NL80211_IFTYPE_P2P_GO)) 487 brcmf_proto_configure_addr_mode(ifp->drvr, ifp->ifidx, 488 ADDR_DIRECT); 489 else 490 brcmf_proto_configure_addr_mode(ifp->drvr, ifp->ifidx, 491 ADDR_INDIRECT); 492 } 493 494 static int brcmf_get_first_free_bsscfgidx(struct brcmf_pub *drvr) 495 { 496 int bsscfgidx; 497 498 for (bsscfgidx = 0; bsscfgidx < BRCMF_MAX_IFS; bsscfgidx++) { 499 /* bsscfgidx 1 is reserved for legacy P2P */ 500 if (bsscfgidx == 1) 501 continue; 502 if (!drvr->iflist[bsscfgidx]) 503 return bsscfgidx; 504 } 505 506 return -ENOMEM; 507 } 508 509 static int brcmf_cfg80211_request_ap_if(struct brcmf_if *ifp) 510 { 511 struct brcmf_mbss_ssid_le mbss_ssid_le; 512 int bsscfgidx; 513 int err; 514 515 memset(&mbss_ssid_le, 0, sizeof(mbss_ssid_le)); 516 bsscfgidx = brcmf_get_first_free_bsscfgidx(ifp->drvr); 517 if (bsscfgidx < 0) 518 return bsscfgidx; 519 520 mbss_ssid_le.bsscfgidx = cpu_to_le32(bsscfgidx); 521 mbss_ssid_le.SSID_len = cpu_to_le32(5); 522 sprintf(mbss_ssid_le.SSID, "ssid%d" , bsscfgidx); 523 524 err = brcmf_fil_bsscfg_data_set(ifp, "bsscfg:ssid", &mbss_ssid_le, 525 sizeof(mbss_ssid_le)); 526 if (err < 0) 527 brcmf_err("setting ssid failed %d\n", err); 528 529 return err; 530 } 531 532 /** 533 * brcmf_ap_add_vif() - create a new AP virtual interface for multiple BSS 534 * 535 * @wiphy: wiphy device of new interface. 536 * @name: name of the new interface. 537 * @params: contains mac address for AP device. 538 */ 539 static 540 struct wireless_dev *brcmf_ap_add_vif(struct wiphy *wiphy, const char *name, 541 struct vif_params *params) 542 { 543 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 544 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg)); 545 struct brcmf_cfg80211_vif *vif; 546 int err; 547 548 if (brcmf_cfg80211_vif_event_armed(cfg)) 549 return ERR_PTR(-EBUSY); 550 551 brcmf_dbg(INFO, "Adding vif \"%s\"\n", name); 552 553 vif = brcmf_alloc_vif(cfg, NL80211_IFTYPE_AP); 554 if (IS_ERR(vif)) 555 return (struct wireless_dev *)vif; 556 557 brcmf_cfg80211_arm_vif_event(cfg, vif); 558 559 err = brcmf_cfg80211_request_ap_if(ifp); 560 if (err) { 561 brcmf_cfg80211_arm_vif_event(cfg, NULL); 562 goto fail; 563 } 564 565 /* wait for firmware event */ 566 err = brcmf_cfg80211_wait_vif_event(cfg, BRCMF_E_IF_ADD, 567 BRCMF_VIF_EVENT_TIMEOUT); 568 brcmf_cfg80211_arm_vif_event(cfg, NULL); 569 if (!err) { 570 brcmf_err("timeout occurred\n"); 571 err = -EIO; 572 goto fail; 573 } 574 575 /* interface created in firmware */ 576 ifp = vif->ifp; 577 if (!ifp) { 578 brcmf_err("no if pointer provided\n"); 579 err = -ENOENT; 580 goto fail; 581 } 582 583 strncpy(ifp->ndev->name, name, sizeof(ifp->ndev->name) - 1); 584 err = brcmf_net_attach(ifp, true); 585 if (err) { 586 brcmf_err("Registering netdevice failed\n"); 587 free_netdev(ifp->ndev); 588 goto fail; 589 } 590 591 return &ifp->vif->wdev; 592 593 fail: 594 brcmf_free_vif(vif); 595 return ERR_PTR(err); 596 } 597 598 static bool brcmf_is_apmode(struct brcmf_cfg80211_vif *vif) 599 { 600 enum nl80211_iftype iftype; 601 602 iftype = vif->wdev.iftype; 603 return iftype == NL80211_IFTYPE_AP || iftype == NL80211_IFTYPE_P2P_GO; 604 } 605 606 static bool brcmf_is_ibssmode(struct brcmf_cfg80211_vif *vif) 607 { 608 return vif->wdev.iftype == NL80211_IFTYPE_ADHOC; 609 } 610 611 static struct wireless_dev *brcmf_cfg80211_add_iface(struct wiphy *wiphy, 612 const char *name, 613 unsigned char name_assign_type, 614 enum nl80211_iftype type, 615 struct vif_params *params) 616 { 617 struct wireless_dev *wdev; 618 int err; 619 620 brcmf_dbg(TRACE, "enter: %s type %d\n", name, type); 621 err = brcmf_vif_add_validate(wiphy_to_cfg(wiphy), type); 622 if (err) { 623 brcmf_err("iface validation failed: err=%d\n", err); 624 return ERR_PTR(err); 625 } 626 switch (type) { 627 case NL80211_IFTYPE_ADHOC: 628 case NL80211_IFTYPE_STATION: 629 case NL80211_IFTYPE_AP_VLAN: 630 case NL80211_IFTYPE_WDS: 631 case NL80211_IFTYPE_MONITOR: 632 case NL80211_IFTYPE_MESH_POINT: 633 return ERR_PTR(-EOPNOTSUPP); 634 case NL80211_IFTYPE_AP: 635 wdev = brcmf_ap_add_vif(wiphy, name, params); 636 break; 637 case NL80211_IFTYPE_P2P_CLIENT: 638 case NL80211_IFTYPE_P2P_GO: 639 case NL80211_IFTYPE_P2P_DEVICE: 640 wdev = brcmf_p2p_add_vif(wiphy, name, name_assign_type, type, params); 641 break; 642 case NL80211_IFTYPE_UNSPECIFIED: 643 default: 644 return ERR_PTR(-EINVAL); 645 } 646 647 if (IS_ERR(wdev)) 648 brcmf_err("add iface %s type %d failed: err=%d\n", 649 name, type, (int)PTR_ERR(wdev)); 650 else 651 brcmf_cfg80211_update_proto_addr_mode(wdev); 652 653 return wdev; 654 } 655 656 static void brcmf_scan_config_mpc(struct brcmf_if *ifp, int mpc) 657 { 658 if (brcmf_feat_is_quirk_enabled(ifp, BRCMF_FEAT_QUIRK_NEED_MPC)) 659 brcmf_set_mpc(ifp, mpc); 660 } 661 662 void brcmf_set_mpc(struct brcmf_if *ifp, int mpc) 663 { 664 s32 err = 0; 665 666 if (check_vif_up(ifp->vif)) { 667 err = brcmf_fil_iovar_int_set(ifp, "mpc", mpc); 668 if (err) { 669 brcmf_err("fail to set mpc\n"); 670 return; 671 } 672 brcmf_dbg(INFO, "MPC : %d\n", mpc); 673 } 674 } 675 676 s32 brcmf_notify_escan_complete(struct brcmf_cfg80211_info *cfg, 677 struct brcmf_if *ifp, bool aborted, 678 bool fw_abort) 679 { 680 struct brcmf_scan_params_le params_le; 681 struct cfg80211_scan_request *scan_request; 682 u64 reqid; 683 u32 bucket; 684 s32 err = 0; 685 686 brcmf_dbg(SCAN, "Enter\n"); 687 688 /* clear scan request, because the FW abort can cause a second call */ 689 /* to this functon and might cause a double cfg80211_scan_done */ 690 scan_request = cfg->scan_request; 691 cfg->scan_request = NULL; 692 693 if (timer_pending(&cfg->escan_timeout)) 694 del_timer_sync(&cfg->escan_timeout); 695 696 if (fw_abort) { 697 /* Do a scan abort to stop the driver's scan engine */ 698 brcmf_dbg(SCAN, "ABORT scan in firmware\n"); 699 memset(¶ms_le, 0, sizeof(params_le)); 700 eth_broadcast_addr(params_le.bssid); 701 params_le.bss_type = DOT11_BSSTYPE_ANY; 702 params_le.scan_type = 0; 703 params_le.channel_num = cpu_to_le32(1); 704 params_le.nprobes = cpu_to_le32(1); 705 params_le.active_time = cpu_to_le32(-1); 706 params_le.passive_time = cpu_to_le32(-1); 707 params_le.home_time = cpu_to_le32(-1); 708 /* Scan is aborted by setting channel_list[0] to -1 */ 709 params_le.channel_list[0] = cpu_to_le16(-1); 710 /* E-Scan (or anyother type) can be aborted by SCAN */ 711 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SCAN, 712 ¶ms_le, sizeof(params_le)); 713 if (err) 714 brcmf_err("Scan abort failed\n"); 715 } 716 717 brcmf_scan_config_mpc(ifp, 1); 718 719 /* 720 * e-scan can be initiated internally 721 * which takes precedence. 722 */ 723 if (cfg->int_escan_map) { 724 brcmf_dbg(SCAN, "scheduled scan completed (%x)\n", 725 cfg->int_escan_map); 726 while (cfg->int_escan_map) { 727 bucket = __ffs(cfg->int_escan_map); 728 cfg->int_escan_map &= ~BIT(bucket); 729 reqid = brcmf_pno_find_reqid_by_bucket(cfg->pno, 730 bucket); 731 if (!aborted) { 732 brcmf_dbg(SCAN, "report results: reqid=%llu\n", 733 reqid); 734 cfg80211_sched_scan_results(cfg_to_wiphy(cfg), 735 reqid); 736 } 737 } 738 } else if (scan_request) { 739 struct cfg80211_scan_info info = { 740 .aborted = aborted, 741 }; 742 743 brcmf_dbg(SCAN, "ESCAN Completed scan: %s\n", 744 aborted ? "Aborted" : "Done"); 745 cfg80211_scan_done(scan_request, &info); 746 } 747 if (!test_and_clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) 748 brcmf_dbg(SCAN, "Scan complete, probably P2P scan\n"); 749 750 return err; 751 } 752 753 static int brcmf_cfg80211_del_ap_iface(struct wiphy *wiphy, 754 struct wireless_dev *wdev) 755 { 756 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 757 struct net_device *ndev = wdev->netdev; 758 struct brcmf_if *ifp = netdev_priv(ndev); 759 int ret; 760 int err; 761 762 brcmf_cfg80211_arm_vif_event(cfg, ifp->vif); 763 764 err = brcmf_fil_bsscfg_data_set(ifp, "interface_remove", NULL, 0); 765 if (err) { 766 brcmf_err("interface_remove failed %d\n", err); 767 goto err_unarm; 768 } 769 770 /* wait for firmware event */ 771 ret = brcmf_cfg80211_wait_vif_event(cfg, BRCMF_E_IF_DEL, 772 BRCMF_VIF_EVENT_TIMEOUT); 773 if (!ret) { 774 brcmf_err("timeout occurred\n"); 775 err = -EIO; 776 goto err_unarm; 777 } 778 779 brcmf_remove_interface(ifp, true); 780 781 err_unarm: 782 brcmf_cfg80211_arm_vif_event(cfg, NULL); 783 return err; 784 } 785 786 static 787 int brcmf_cfg80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev) 788 { 789 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 790 struct net_device *ndev = wdev->netdev; 791 792 if (ndev && ndev == cfg_to_ndev(cfg)) 793 return -ENOTSUPP; 794 795 /* vif event pending in firmware */ 796 if (brcmf_cfg80211_vif_event_armed(cfg)) 797 return -EBUSY; 798 799 if (ndev) { 800 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status) && 801 cfg->escan_info.ifp == netdev_priv(ndev)) 802 brcmf_notify_escan_complete(cfg, netdev_priv(ndev), 803 true, true); 804 805 brcmf_fil_iovar_int_set(netdev_priv(ndev), "mpc", 1); 806 } 807 808 switch (wdev->iftype) { 809 case NL80211_IFTYPE_ADHOC: 810 case NL80211_IFTYPE_STATION: 811 case NL80211_IFTYPE_AP_VLAN: 812 case NL80211_IFTYPE_WDS: 813 case NL80211_IFTYPE_MONITOR: 814 case NL80211_IFTYPE_MESH_POINT: 815 return -EOPNOTSUPP; 816 case NL80211_IFTYPE_AP: 817 return brcmf_cfg80211_del_ap_iface(wiphy, wdev); 818 case NL80211_IFTYPE_P2P_CLIENT: 819 case NL80211_IFTYPE_P2P_GO: 820 case NL80211_IFTYPE_P2P_DEVICE: 821 return brcmf_p2p_del_vif(wiphy, wdev); 822 case NL80211_IFTYPE_UNSPECIFIED: 823 default: 824 return -EINVAL; 825 } 826 return -EOPNOTSUPP; 827 } 828 829 static s32 830 brcmf_cfg80211_change_iface(struct wiphy *wiphy, struct net_device *ndev, 831 enum nl80211_iftype type, 832 struct vif_params *params) 833 { 834 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 835 struct brcmf_if *ifp = netdev_priv(ndev); 836 struct brcmf_cfg80211_vif *vif = ifp->vif; 837 s32 infra = 0; 838 s32 ap = 0; 839 s32 err = 0; 840 841 brcmf_dbg(TRACE, "Enter, bsscfgidx=%d, type=%d\n", ifp->bsscfgidx, 842 type); 843 844 /* WAR: There are a number of p2p interface related problems which 845 * need to be handled initially (before doing the validate). 846 * wpa_supplicant tends to do iface changes on p2p device/client/go 847 * which are not always possible/allowed. However we need to return 848 * OK otherwise the wpa_supplicant wont start. The situation differs 849 * on configuration and setup (p2pon=1 module param). The first check 850 * is to see if the request is a change to station for p2p iface. 851 */ 852 if ((type == NL80211_IFTYPE_STATION) && 853 ((vif->wdev.iftype == NL80211_IFTYPE_P2P_CLIENT) || 854 (vif->wdev.iftype == NL80211_IFTYPE_P2P_GO) || 855 (vif->wdev.iftype == NL80211_IFTYPE_P2P_DEVICE))) { 856 brcmf_dbg(TRACE, "Ignoring cmd for p2p if\n"); 857 /* Now depending on whether module param p2pon=1 was used the 858 * response needs to be either 0 or EOPNOTSUPP. The reason is 859 * that if p2pon=1 is used, but a newer supplicant is used then 860 * we should return an error, as this combination wont work. 861 * In other situations 0 is returned and supplicant will start 862 * normally. It will give a trace in cfg80211, but it is the 863 * only way to get it working. Unfortunately this will result 864 * in situation where we wont support new supplicant in 865 * combination with module param p2pon=1, but that is the way 866 * it is. If the user tries this then unloading of driver might 867 * fail/lock. 868 */ 869 if (cfg->p2p.p2pdev_dynamically) 870 return -EOPNOTSUPP; 871 else 872 return 0; 873 } 874 err = brcmf_vif_change_validate(wiphy_to_cfg(wiphy), vif, type); 875 if (err) { 876 brcmf_err("iface validation failed: err=%d\n", err); 877 return err; 878 } 879 switch (type) { 880 case NL80211_IFTYPE_MONITOR: 881 case NL80211_IFTYPE_WDS: 882 brcmf_err("type (%d) : currently we do not support this type\n", 883 type); 884 return -EOPNOTSUPP; 885 case NL80211_IFTYPE_ADHOC: 886 infra = 0; 887 break; 888 case NL80211_IFTYPE_STATION: 889 infra = 1; 890 break; 891 case NL80211_IFTYPE_AP: 892 case NL80211_IFTYPE_P2P_GO: 893 ap = 1; 894 break; 895 default: 896 err = -EINVAL; 897 goto done; 898 } 899 900 if (ap) { 901 if (type == NL80211_IFTYPE_P2P_GO) { 902 brcmf_dbg(INFO, "IF Type = P2P GO\n"); 903 err = brcmf_p2p_ifchange(cfg, BRCMF_FIL_P2P_IF_GO); 904 } 905 if (!err) { 906 brcmf_dbg(INFO, "IF Type = AP\n"); 907 } 908 } else { 909 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_INFRA, infra); 910 if (err) { 911 brcmf_err("WLC_SET_INFRA error (%d)\n", err); 912 err = -EAGAIN; 913 goto done; 914 } 915 brcmf_dbg(INFO, "IF Type = %s\n", brcmf_is_ibssmode(vif) ? 916 "Adhoc" : "Infra"); 917 } 918 ndev->ieee80211_ptr->iftype = type; 919 920 brcmf_cfg80211_update_proto_addr_mode(&vif->wdev); 921 922 done: 923 brcmf_dbg(TRACE, "Exit\n"); 924 925 return err; 926 } 927 928 static void brcmf_escan_prep(struct brcmf_cfg80211_info *cfg, 929 struct brcmf_scan_params_le *params_le, 930 struct cfg80211_scan_request *request) 931 { 932 u32 n_ssids; 933 u32 n_channels; 934 s32 i; 935 s32 offset; 936 u16 chanspec; 937 char *ptr; 938 struct brcmf_ssid_le ssid_le; 939 940 eth_broadcast_addr(params_le->bssid); 941 params_le->bss_type = DOT11_BSSTYPE_ANY; 942 params_le->scan_type = BRCMF_SCANTYPE_ACTIVE; 943 params_le->channel_num = 0; 944 params_le->nprobes = cpu_to_le32(-1); 945 params_le->active_time = cpu_to_le32(-1); 946 params_le->passive_time = cpu_to_le32(-1); 947 params_le->home_time = cpu_to_le32(-1); 948 memset(¶ms_le->ssid_le, 0, sizeof(params_le->ssid_le)); 949 950 n_ssids = request->n_ssids; 951 n_channels = request->n_channels; 952 953 /* Copy channel array if applicable */ 954 brcmf_dbg(SCAN, "### List of channelspecs to scan ### %d\n", 955 n_channels); 956 if (n_channels > 0) { 957 for (i = 0; i < n_channels; i++) { 958 chanspec = channel_to_chanspec(&cfg->d11inf, 959 request->channels[i]); 960 brcmf_dbg(SCAN, "Chan : %d, Channel spec: %x\n", 961 request->channels[i]->hw_value, chanspec); 962 params_le->channel_list[i] = cpu_to_le16(chanspec); 963 } 964 } else { 965 brcmf_dbg(SCAN, "Scanning all channels\n"); 966 } 967 /* Copy ssid array if applicable */ 968 brcmf_dbg(SCAN, "### List of SSIDs to scan ### %d\n", n_ssids); 969 if (n_ssids > 0) { 970 offset = offsetof(struct brcmf_scan_params_le, channel_list) + 971 n_channels * sizeof(u16); 972 offset = roundup(offset, sizeof(u32)); 973 ptr = (char *)params_le + offset; 974 for (i = 0; i < n_ssids; i++) { 975 memset(&ssid_le, 0, sizeof(ssid_le)); 976 ssid_le.SSID_len = 977 cpu_to_le32(request->ssids[i].ssid_len); 978 memcpy(ssid_le.SSID, request->ssids[i].ssid, 979 request->ssids[i].ssid_len); 980 if (!ssid_le.SSID_len) 981 brcmf_dbg(SCAN, "%d: Broadcast scan\n", i); 982 else 983 brcmf_dbg(SCAN, "%d: scan for %.32s size=%d\n", 984 i, ssid_le.SSID, ssid_le.SSID_len); 985 memcpy(ptr, &ssid_le, sizeof(ssid_le)); 986 ptr += sizeof(ssid_le); 987 } 988 } else { 989 brcmf_dbg(SCAN, "Performing passive scan\n"); 990 params_le->scan_type = BRCMF_SCANTYPE_PASSIVE; 991 } 992 /* Adding mask to channel numbers */ 993 params_le->channel_num = 994 cpu_to_le32((n_ssids << BRCMF_SCAN_PARAMS_NSSID_SHIFT) | 995 (n_channels & BRCMF_SCAN_PARAMS_COUNT_MASK)); 996 } 997 998 static s32 999 brcmf_run_escan(struct brcmf_cfg80211_info *cfg, struct brcmf_if *ifp, 1000 struct cfg80211_scan_request *request) 1001 { 1002 s32 params_size = BRCMF_SCAN_PARAMS_FIXED_SIZE + 1003 offsetof(struct brcmf_escan_params_le, params_le); 1004 struct brcmf_escan_params_le *params; 1005 s32 err = 0; 1006 1007 brcmf_dbg(SCAN, "E-SCAN START\n"); 1008 1009 if (request != NULL) { 1010 /* Allocate space for populating ssids in struct */ 1011 params_size += sizeof(u32) * ((request->n_channels + 1) / 2); 1012 1013 /* Allocate space for populating ssids in struct */ 1014 params_size += sizeof(struct brcmf_ssid_le) * request->n_ssids; 1015 } 1016 1017 params = kzalloc(params_size, GFP_KERNEL); 1018 if (!params) { 1019 err = -ENOMEM; 1020 goto exit; 1021 } 1022 BUG_ON(params_size + sizeof("escan") >= BRCMF_DCMD_MEDLEN); 1023 brcmf_escan_prep(cfg, ¶ms->params_le, request); 1024 params->version = cpu_to_le32(BRCMF_ESCAN_REQ_VERSION); 1025 params->action = cpu_to_le16(WL_ESCAN_ACTION_START); 1026 params->sync_id = cpu_to_le16(0x1234); 1027 1028 err = brcmf_fil_iovar_data_set(ifp, "escan", params, params_size); 1029 if (err) { 1030 if (err == -EBUSY) 1031 brcmf_dbg(INFO, "system busy : escan canceled\n"); 1032 else 1033 brcmf_err("error (%d)\n", err); 1034 } 1035 1036 kfree(params); 1037 exit: 1038 return err; 1039 } 1040 1041 static s32 1042 brcmf_do_escan(struct brcmf_if *ifp, struct cfg80211_scan_request *request) 1043 { 1044 struct brcmf_cfg80211_info *cfg = ifp->drvr->config; 1045 s32 err; 1046 struct brcmf_scan_results *results; 1047 struct escan_info *escan = &cfg->escan_info; 1048 1049 brcmf_dbg(SCAN, "Enter\n"); 1050 escan->ifp = ifp; 1051 escan->wiphy = cfg->wiphy; 1052 escan->escan_state = WL_ESCAN_STATE_SCANNING; 1053 1054 brcmf_scan_config_mpc(ifp, 0); 1055 results = (struct brcmf_scan_results *)cfg->escan_info.escan_buf; 1056 results->version = 0; 1057 results->count = 0; 1058 results->buflen = WL_ESCAN_RESULTS_FIXED_SIZE; 1059 1060 err = escan->run(cfg, ifp, request); 1061 if (err) 1062 brcmf_scan_config_mpc(ifp, 1); 1063 return err; 1064 } 1065 1066 static s32 1067 brcmf_cfg80211_scan(struct wiphy *wiphy, struct cfg80211_scan_request *request) 1068 { 1069 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 1070 struct brcmf_cfg80211_vif *vif; 1071 s32 err = 0; 1072 1073 brcmf_dbg(TRACE, "Enter\n"); 1074 vif = container_of(request->wdev, struct brcmf_cfg80211_vif, wdev); 1075 if (!check_vif_up(vif)) 1076 return -EIO; 1077 1078 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) { 1079 brcmf_err("Scanning already: status (%lu)\n", cfg->scan_status); 1080 return -EAGAIN; 1081 } 1082 if (test_bit(BRCMF_SCAN_STATUS_ABORT, &cfg->scan_status)) { 1083 brcmf_err("Scanning being aborted: status (%lu)\n", 1084 cfg->scan_status); 1085 return -EAGAIN; 1086 } 1087 if (test_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status)) { 1088 brcmf_err("Scanning suppressed: status (%lu)\n", 1089 cfg->scan_status); 1090 return -EAGAIN; 1091 } 1092 if (test_bit(BRCMF_VIF_STATUS_CONNECTING, &vif->sme_state)) { 1093 brcmf_err("Connecting: status (%lu)\n", vif->sme_state); 1094 return -EAGAIN; 1095 } 1096 1097 /* If scan req comes for p2p0, send it over primary I/F */ 1098 if (vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif) 1099 vif = cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif; 1100 1101 brcmf_dbg(SCAN, "START ESCAN\n"); 1102 1103 cfg->scan_request = request; 1104 set_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status); 1105 1106 cfg->escan_info.run = brcmf_run_escan; 1107 err = brcmf_p2p_scan_prep(wiphy, request, vif); 1108 if (err) 1109 goto scan_out; 1110 1111 err = brcmf_vif_set_mgmt_ie(vif, BRCMF_VNDR_IE_PRBREQ_FLAG, 1112 request->ie, request->ie_len); 1113 if (err) 1114 goto scan_out; 1115 1116 err = brcmf_do_escan(vif->ifp, request); 1117 if (err) 1118 goto scan_out; 1119 1120 /* Arm scan timeout timer */ 1121 mod_timer(&cfg->escan_timeout, 1122 jiffies + msecs_to_jiffies(BRCMF_ESCAN_TIMER_INTERVAL_MS)); 1123 1124 return 0; 1125 1126 scan_out: 1127 brcmf_err("scan error (%d)\n", err); 1128 clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status); 1129 cfg->scan_request = NULL; 1130 return err; 1131 } 1132 1133 static s32 brcmf_set_rts(struct net_device *ndev, u32 rts_threshold) 1134 { 1135 s32 err = 0; 1136 1137 err = brcmf_fil_iovar_int_set(netdev_priv(ndev), "rtsthresh", 1138 rts_threshold); 1139 if (err) 1140 brcmf_err("Error (%d)\n", err); 1141 1142 return err; 1143 } 1144 1145 static s32 brcmf_set_frag(struct net_device *ndev, u32 frag_threshold) 1146 { 1147 s32 err = 0; 1148 1149 err = brcmf_fil_iovar_int_set(netdev_priv(ndev), "fragthresh", 1150 frag_threshold); 1151 if (err) 1152 brcmf_err("Error (%d)\n", err); 1153 1154 return err; 1155 } 1156 1157 static s32 brcmf_set_retry(struct net_device *ndev, u32 retry, bool l) 1158 { 1159 s32 err = 0; 1160 u32 cmd = (l ? BRCMF_C_SET_LRL : BRCMF_C_SET_SRL); 1161 1162 err = brcmf_fil_cmd_int_set(netdev_priv(ndev), cmd, retry); 1163 if (err) { 1164 brcmf_err("cmd (%d) , error (%d)\n", cmd, err); 1165 return err; 1166 } 1167 return err; 1168 } 1169 1170 static s32 brcmf_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 1171 { 1172 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 1173 struct net_device *ndev = cfg_to_ndev(cfg); 1174 struct brcmf_if *ifp = netdev_priv(ndev); 1175 s32 err = 0; 1176 1177 brcmf_dbg(TRACE, "Enter\n"); 1178 if (!check_vif_up(ifp->vif)) 1179 return -EIO; 1180 1181 if (changed & WIPHY_PARAM_RTS_THRESHOLD && 1182 (cfg->conf->rts_threshold != wiphy->rts_threshold)) { 1183 cfg->conf->rts_threshold = wiphy->rts_threshold; 1184 err = brcmf_set_rts(ndev, cfg->conf->rts_threshold); 1185 if (!err) 1186 goto done; 1187 } 1188 if (changed & WIPHY_PARAM_FRAG_THRESHOLD && 1189 (cfg->conf->frag_threshold != wiphy->frag_threshold)) { 1190 cfg->conf->frag_threshold = wiphy->frag_threshold; 1191 err = brcmf_set_frag(ndev, cfg->conf->frag_threshold); 1192 if (!err) 1193 goto done; 1194 } 1195 if (changed & WIPHY_PARAM_RETRY_LONG 1196 && (cfg->conf->retry_long != wiphy->retry_long)) { 1197 cfg->conf->retry_long = wiphy->retry_long; 1198 err = brcmf_set_retry(ndev, cfg->conf->retry_long, true); 1199 if (!err) 1200 goto done; 1201 } 1202 if (changed & WIPHY_PARAM_RETRY_SHORT 1203 && (cfg->conf->retry_short != wiphy->retry_short)) { 1204 cfg->conf->retry_short = wiphy->retry_short; 1205 err = brcmf_set_retry(ndev, cfg->conf->retry_short, false); 1206 if (!err) 1207 goto done; 1208 } 1209 1210 done: 1211 brcmf_dbg(TRACE, "Exit\n"); 1212 return err; 1213 } 1214 1215 static void brcmf_init_prof(struct brcmf_cfg80211_profile *prof) 1216 { 1217 memset(prof, 0, sizeof(*prof)); 1218 } 1219 1220 static u16 brcmf_map_fw_linkdown_reason(const struct brcmf_event_msg *e) 1221 { 1222 u16 reason; 1223 1224 switch (e->event_code) { 1225 case BRCMF_E_DEAUTH: 1226 case BRCMF_E_DEAUTH_IND: 1227 case BRCMF_E_DISASSOC_IND: 1228 reason = e->reason; 1229 break; 1230 case BRCMF_E_LINK: 1231 default: 1232 reason = 0; 1233 break; 1234 } 1235 return reason; 1236 } 1237 1238 static int brcmf_set_pmk(struct brcmf_if *ifp, const u8 *pmk_data, u16 pmk_len) 1239 { 1240 struct brcmf_wsec_pmk_le pmk; 1241 int i, err; 1242 1243 /* convert to firmware key format */ 1244 pmk.key_len = cpu_to_le16(pmk_len << 1); 1245 pmk.flags = cpu_to_le16(BRCMF_WSEC_PASSPHRASE); 1246 for (i = 0; i < pmk_len; i++) 1247 snprintf(&pmk.key[2 * i], 3, "%02x", pmk_data[i]); 1248 1249 /* store psk in firmware */ 1250 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_WSEC_PMK, 1251 &pmk, sizeof(pmk)); 1252 if (err < 0) 1253 brcmf_err("failed to change PSK in firmware (len=%u)\n", 1254 pmk_len); 1255 1256 return err; 1257 } 1258 1259 static void brcmf_link_down(struct brcmf_cfg80211_vif *vif, u16 reason) 1260 { 1261 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(vif->wdev.wiphy); 1262 s32 err = 0; 1263 1264 brcmf_dbg(TRACE, "Enter\n"); 1265 1266 if (test_and_clear_bit(BRCMF_VIF_STATUS_CONNECTED, &vif->sme_state)) { 1267 brcmf_dbg(INFO, "Call WLC_DISASSOC to stop excess roaming\n"); 1268 err = brcmf_fil_cmd_data_set(vif->ifp, 1269 BRCMF_C_DISASSOC, NULL, 0); 1270 if (err) { 1271 brcmf_err("WLC_DISASSOC failed (%d)\n", err); 1272 } 1273 if ((vif->wdev.iftype == NL80211_IFTYPE_STATION) || 1274 (vif->wdev.iftype == NL80211_IFTYPE_P2P_CLIENT)) 1275 cfg80211_disconnected(vif->wdev.netdev, reason, NULL, 0, 1276 true, GFP_KERNEL); 1277 } 1278 clear_bit(BRCMF_VIF_STATUS_CONNECTING, &vif->sme_state); 1279 clear_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status); 1280 brcmf_btcoex_set_mode(vif, BRCMF_BTCOEX_ENABLED, 0); 1281 if (vif->profile.use_fwsup != BRCMF_PROFILE_FWSUP_NONE) { 1282 brcmf_set_pmk(vif->ifp, NULL, 0); 1283 vif->profile.use_fwsup = BRCMF_PROFILE_FWSUP_NONE; 1284 } 1285 brcmf_dbg(TRACE, "Exit\n"); 1286 } 1287 1288 static s32 1289 brcmf_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *ndev, 1290 struct cfg80211_ibss_params *params) 1291 { 1292 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 1293 struct brcmf_if *ifp = netdev_priv(ndev); 1294 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile; 1295 struct brcmf_join_params join_params; 1296 size_t join_params_size = 0; 1297 s32 err = 0; 1298 s32 wsec = 0; 1299 s32 bcnprd; 1300 u16 chanspec; 1301 u32 ssid_len; 1302 1303 brcmf_dbg(TRACE, "Enter\n"); 1304 if (!check_vif_up(ifp->vif)) 1305 return -EIO; 1306 1307 if (params->ssid) 1308 brcmf_dbg(CONN, "SSID: %s\n", params->ssid); 1309 else { 1310 brcmf_dbg(CONN, "SSID: NULL, Not supported\n"); 1311 return -EOPNOTSUPP; 1312 } 1313 1314 set_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state); 1315 1316 if (params->bssid) 1317 brcmf_dbg(CONN, "BSSID: %pM\n", params->bssid); 1318 else 1319 brcmf_dbg(CONN, "No BSSID specified\n"); 1320 1321 if (params->chandef.chan) 1322 brcmf_dbg(CONN, "channel: %d\n", 1323 params->chandef.chan->center_freq); 1324 else 1325 brcmf_dbg(CONN, "no channel specified\n"); 1326 1327 if (params->channel_fixed) 1328 brcmf_dbg(CONN, "fixed channel required\n"); 1329 else 1330 brcmf_dbg(CONN, "no fixed channel required\n"); 1331 1332 if (params->ie && params->ie_len) 1333 brcmf_dbg(CONN, "ie len: %d\n", params->ie_len); 1334 else 1335 brcmf_dbg(CONN, "no ie specified\n"); 1336 1337 if (params->beacon_interval) 1338 brcmf_dbg(CONN, "beacon interval: %d\n", 1339 params->beacon_interval); 1340 else 1341 brcmf_dbg(CONN, "no beacon interval specified\n"); 1342 1343 if (params->basic_rates) 1344 brcmf_dbg(CONN, "basic rates: %08X\n", params->basic_rates); 1345 else 1346 brcmf_dbg(CONN, "no basic rates specified\n"); 1347 1348 if (params->privacy) 1349 brcmf_dbg(CONN, "privacy required\n"); 1350 else 1351 brcmf_dbg(CONN, "no privacy required\n"); 1352 1353 /* Configure Privacy for starter */ 1354 if (params->privacy) 1355 wsec |= WEP_ENABLED; 1356 1357 err = brcmf_fil_iovar_int_set(ifp, "wsec", wsec); 1358 if (err) { 1359 brcmf_err("wsec failed (%d)\n", err); 1360 goto done; 1361 } 1362 1363 /* Configure Beacon Interval for starter */ 1364 if (params->beacon_interval) 1365 bcnprd = params->beacon_interval; 1366 else 1367 bcnprd = 100; 1368 1369 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_BCNPRD, bcnprd); 1370 if (err) { 1371 brcmf_err("WLC_SET_BCNPRD failed (%d)\n", err); 1372 goto done; 1373 } 1374 1375 /* Configure required join parameter */ 1376 memset(&join_params, 0, sizeof(struct brcmf_join_params)); 1377 1378 /* SSID */ 1379 ssid_len = min_t(u32, params->ssid_len, IEEE80211_MAX_SSID_LEN); 1380 memcpy(join_params.ssid_le.SSID, params->ssid, ssid_len); 1381 join_params.ssid_le.SSID_len = cpu_to_le32(ssid_len); 1382 join_params_size = sizeof(join_params.ssid_le); 1383 1384 /* BSSID */ 1385 if (params->bssid) { 1386 memcpy(join_params.params_le.bssid, params->bssid, ETH_ALEN); 1387 join_params_size += BRCMF_ASSOC_PARAMS_FIXED_SIZE; 1388 memcpy(profile->bssid, params->bssid, ETH_ALEN); 1389 } else { 1390 eth_broadcast_addr(join_params.params_le.bssid); 1391 eth_zero_addr(profile->bssid); 1392 } 1393 1394 /* Channel */ 1395 if (params->chandef.chan) { 1396 u32 target_channel; 1397 1398 cfg->channel = 1399 ieee80211_frequency_to_channel( 1400 params->chandef.chan->center_freq); 1401 if (params->channel_fixed) { 1402 /* adding chanspec */ 1403 chanspec = chandef_to_chanspec(&cfg->d11inf, 1404 ¶ms->chandef); 1405 join_params.params_le.chanspec_list[0] = 1406 cpu_to_le16(chanspec); 1407 join_params.params_le.chanspec_num = cpu_to_le32(1); 1408 join_params_size += sizeof(join_params.params_le); 1409 } 1410 1411 /* set channel for starter */ 1412 target_channel = cfg->channel; 1413 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_CHANNEL, 1414 target_channel); 1415 if (err) { 1416 brcmf_err("WLC_SET_CHANNEL failed (%d)\n", err); 1417 goto done; 1418 } 1419 } else 1420 cfg->channel = 0; 1421 1422 cfg->ibss_starter = false; 1423 1424 1425 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID, 1426 &join_params, join_params_size); 1427 if (err) { 1428 brcmf_err("WLC_SET_SSID failed (%d)\n", err); 1429 goto done; 1430 } 1431 1432 done: 1433 if (err) 1434 clear_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state); 1435 brcmf_dbg(TRACE, "Exit\n"); 1436 return err; 1437 } 1438 1439 static s32 1440 brcmf_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *ndev) 1441 { 1442 struct brcmf_if *ifp = netdev_priv(ndev); 1443 1444 brcmf_dbg(TRACE, "Enter\n"); 1445 if (!check_vif_up(ifp->vif)) { 1446 /* When driver is being unloaded, it can end up here. If an 1447 * error is returned then later on a debug trace in the wireless 1448 * core module will be printed. To avoid this 0 is returned. 1449 */ 1450 return 0; 1451 } 1452 1453 brcmf_link_down(ifp->vif, WLAN_REASON_DEAUTH_LEAVING); 1454 brcmf_net_setcarrier(ifp, false); 1455 1456 brcmf_dbg(TRACE, "Exit\n"); 1457 1458 return 0; 1459 } 1460 1461 static s32 brcmf_set_wpa_version(struct net_device *ndev, 1462 struct cfg80211_connect_params *sme) 1463 { 1464 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev); 1465 struct brcmf_cfg80211_security *sec; 1466 s32 val = 0; 1467 s32 err = 0; 1468 1469 if (sme->crypto.wpa_versions & NL80211_WPA_VERSION_1) 1470 val = WPA_AUTH_PSK | WPA_AUTH_UNSPECIFIED; 1471 else if (sme->crypto.wpa_versions & NL80211_WPA_VERSION_2) 1472 val = WPA2_AUTH_PSK | WPA2_AUTH_UNSPECIFIED; 1473 else 1474 val = WPA_AUTH_DISABLED; 1475 brcmf_dbg(CONN, "setting wpa_auth to 0x%0x\n", val); 1476 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "wpa_auth", val); 1477 if (err) { 1478 brcmf_err("set wpa_auth failed (%d)\n", err); 1479 return err; 1480 } 1481 sec = &profile->sec; 1482 sec->wpa_versions = sme->crypto.wpa_versions; 1483 return err; 1484 } 1485 1486 static s32 brcmf_set_auth_type(struct net_device *ndev, 1487 struct cfg80211_connect_params *sme) 1488 { 1489 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev); 1490 struct brcmf_cfg80211_security *sec; 1491 s32 val = 0; 1492 s32 err = 0; 1493 1494 switch (sme->auth_type) { 1495 case NL80211_AUTHTYPE_OPEN_SYSTEM: 1496 val = 0; 1497 brcmf_dbg(CONN, "open system\n"); 1498 break; 1499 case NL80211_AUTHTYPE_SHARED_KEY: 1500 val = 1; 1501 brcmf_dbg(CONN, "shared key\n"); 1502 break; 1503 default: 1504 val = 2; 1505 brcmf_dbg(CONN, "automatic, auth type (%d)\n", sme->auth_type); 1506 break; 1507 } 1508 1509 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "auth", val); 1510 if (err) { 1511 brcmf_err("set auth failed (%d)\n", err); 1512 return err; 1513 } 1514 sec = &profile->sec; 1515 sec->auth_type = sme->auth_type; 1516 return err; 1517 } 1518 1519 static s32 1520 brcmf_set_wsec_mode(struct net_device *ndev, 1521 struct cfg80211_connect_params *sme) 1522 { 1523 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev); 1524 struct brcmf_cfg80211_security *sec; 1525 s32 pval = 0; 1526 s32 gval = 0; 1527 s32 wsec; 1528 s32 err = 0; 1529 1530 if (sme->crypto.n_ciphers_pairwise) { 1531 switch (sme->crypto.ciphers_pairwise[0]) { 1532 case WLAN_CIPHER_SUITE_WEP40: 1533 case WLAN_CIPHER_SUITE_WEP104: 1534 pval = WEP_ENABLED; 1535 break; 1536 case WLAN_CIPHER_SUITE_TKIP: 1537 pval = TKIP_ENABLED; 1538 break; 1539 case WLAN_CIPHER_SUITE_CCMP: 1540 pval = AES_ENABLED; 1541 break; 1542 case WLAN_CIPHER_SUITE_AES_CMAC: 1543 pval = AES_ENABLED; 1544 break; 1545 default: 1546 brcmf_err("invalid cipher pairwise (%d)\n", 1547 sme->crypto.ciphers_pairwise[0]); 1548 return -EINVAL; 1549 } 1550 } 1551 if (sme->crypto.cipher_group) { 1552 switch (sme->crypto.cipher_group) { 1553 case WLAN_CIPHER_SUITE_WEP40: 1554 case WLAN_CIPHER_SUITE_WEP104: 1555 gval = WEP_ENABLED; 1556 break; 1557 case WLAN_CIPHER_SUITE_TKIP: 1558 gval = TKIP_ENABLED; 1559 break; 1560 case WLAN_CIPHER_SUITE_CCMP: 1561 gval = AES_ENABLED; 1562 break; 1563 case WLAN_CIPHER_SUITE_AES_CMAC: 1564 gval = AES_ENABLED; 1565 break; 1566 default: 1567 brcmf_err("invalid cipher group (%d)\n", 1568 sme->crypto.cipher_group); 1569 return -EINVAL; 1570 } 1571 } 1572 1573 brcmf_dbg(CONN, "pval (%d) gval (%d)\n", pval, gval); 1574 /* In case of privacy, but no security and WPS then simulate */ 1575 /* setting AES. WPS-2.0 allows no security */ 1576 if (brcmf_find_wpsie(sme->ie, sme->ie_len) && !pval && !gval && 1577 sme->privacy) 1578 pval = AES_ENABLED; 1579 1580 wsec = pval | gval; 1581 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "wsec", wsec); 1582 if (err) { 1583 brcmf_err("error (%d)\n", err); 1584 return err; 1585 } 1586 1587 sec = &profile->sec; 1588 sec->cipher_pairwise = sme->crypto.ciphers_pairwise[0]; 1589 sec->cipher_group = sme->crypto.cipher_group; 1590 1591 return err; 1592 } 1593 1594 static s32 1595 brcmf_set_key_mgmt(struct net_device *ndev, struct cfg80211_connect_params *sme) 1596 { 1597 struct brcmf_if *ifp = netdev_priv(ndev); 1598 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile; 1599 s32 val; 1600 s32 err; 1601 const struct brcmf_tlv *rsn_ie; 1602 const u8 *ie; 1603 u32 ie_len; 1604 u32 offset; 1605 u16 rsn_cap; 1606 u32 mfp; 1607 u16 count; 1608 1609 profile->use_fwsup = BRCMF_PROFILE_FWSUP_NONE; 1610 1611 if (!sme->crypto.n_akm_suites) 1612 return 0; 1613 1614 err = brcmf_fil_bsscfg_int_get(netdev_priv(ndev), "wpa_auth", &val); 1615 if (err) { 1616 brcmf_err("could not get wpa_auth (%d)\n", err); 1617 return err; 1618 } 1619 if (val & (WPA_AUTH_PSK | WPA_AUTH_UNSPECIFIED)) { 1620 switch (sme->crypto.akm_suites[0]) { 1621 case WLAN_AKM_SUITE_8021X: 1622 val = WPA_AUTH_UNSPECIFIED; 1623 if (sme->want_1x) 1624 profile->use_fwsup = BRCMF_PROFILE_FWSUP_1X; 1625 break; 1626 case WLAN_AKM_SUITE_PSK: 1627 val = WPA_AUTH_PSK; 1628 break; 1629 default: 1630 brcmf_err("invalid cipher group (%d)\n", 1631 sme->crypto.cipher_group); 1632 return -EINVAL; 1633 } 1634 } else if (val & (WPA2_AUTH_PSK | WPA2_AUTH_UNSPECIFIED)) { 1635 switch (sme->crypto.akm_suites[0]) { 1636 case WLAN_AKM_SUITE_8021X: 1637 val = WPA2_AUTH_UNSPECIFIED; 1638 if (sme->want_1x) 1639 profile->use_fwsup = BRCMF_PROFILE_FWSUP_1X; 1640 break; 1641 case WLAN_AKM_SUITE_8021X_SHA256: 1642 val = WPA2_AUTH_1X_SHA256; 1643 if (sme->want_1x) 1644 profile->use_fwsup = BRCMF_PROFILE_FWSUP_1X; 1645 break; 1646 case WLAN_AKM_SUITE_PSK_SHA256: 1647 val = WPA2_AUTH_PSK_SHA256; 1648 break; 1649 case WLAN_AKM_SUITE_PSK: 1650 val = WPA2_AUTH_PSK; 1651 break; 1652 case WLAN_AKM_SUITE_FT_8021X: 1653 val = WPA2_AUTH_UNSPECIFIED | WPA2_AUTH_FT; 1654 if (sme->want_1x) 1655 profile->use_fwsup = BRCMF_PROFILE_FWSUP_1X; 1656 break; 1657 case WLAN_AKM_SUITE_FT_PSK: 1658 val = WPA2_AUTH_PSK | WPA2_AUTH_FT; 1659 break; 1660 default: 1661 brcmf_err("invalid cipher group (%d)\n", 1662 sme->crypto.cipher_group); 1663 return -EINVAL; 1664 } 1665 } 1666 1667 if (profile->use_fwsup == BRCMF_PROFILE_FWSUP_1X) 1668 brcmf_dbg(INFO, "using 1X offload\n"); 1669 1670 if (!brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MFP)) 1671 goto skip_mfp_config; 1672 /* The MFP mode (1 or 2) needs to be determined, parse IEs. The 1673 * IE will not be verified, just a quick search for MFP config 1674 */ 1675 rsn_ie = brcmf_parse_tlvs((const u8 *)sme->ie, sme->ie_len, 1676 WLAN_EID_RSN); 1677 if (!rsn_ie) 1678 goto skip_mfp_config; 1679 ie = (const u8 *)rsn_ie; 1680 ie_len = rsn_ie->len + TLV_HDR_LEN; 1681 /* Skip unicast suite */ 1682 offset = TLV_HDR_LEN + WPA_IE_VERSION_LEN + WPA_IE_MIN_OUI_LEN; 1683 if (offset + WPA_IE_SUITE_COUNT_LEN >= ie_len) 1684 goto skip_mfp_config; 1685 /* Skip multicast suite */ 1686 count = ie[offset] + (ie[offset + 1] << 8); 1687 offset += WPA_IE_SUITE_COUNT_LEN + (count * WPA_IE_MIN_OUI_LEN); 1688 if (offset + WPA_IE_SUITE_COUNT_LEN >= ie_len) 1689 goto skip_mfp_config; 1690 /* Skip auth key management suite(s) */ 1691 count = ie[offset] + (ie[offset + 1] << 8); 1692 offset += WPA_IE_SUITE_COUNT_LEN + (count * WPA_IE_MIN_OUI_LEN); 1693 if (offset + WPA_IE_SUITE_COUNT_LEN > ie_len) 1694 goto skip_mfp_config; 1695 /* Ready to read capabilities */ 1696 mfp = BRCMF_MFP_NONE; 1697 rsn_cap = ie[offset] + (ie[offset + 1] << 8); 1698 if (rsn_cap & RSN_CAP_MFPR_MASK) 1699 mfp = BRCMF_MFP_REQUIRED; 1700 else if (rsn_cap & RSN_CAP_MFPC_MASK) 1701 mfp = BRCMF_MFP_CAPABLE; 1702 brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "mfp", mfp); 1703 1704 skip_mfp_config: 1705 brcmf_dbg(CONN, "setting wpa_auth to %d\n", val); 1706 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "wpa_auth", val); 1707 if (err) { 1708 brcmf_err("could not set wpa_auth (%d)\n", err); 1709 return err; 1710 } 1711 1712 return err; 1713 } 1714 1715 static s32 1716 brcmf_set_sharedkey(struct net_device *ndev, 1717 struct cfg80211_connect_params *sme) 1718 { 1719 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev); 1720 struct brcmf_cfg80211_security *sec; 1721 struct brcmf_wsec_key key; 1722 s32 val; 1723 s32 err = 0; 1724 1725 brcmf_dbg(CONN, "key len (%d)\n", sme->key_len); 1726 1727 if (sme->key_len == 0) 1728 return 0; 1729 1730 sec = &profile->sec; 1731 brcmf_dbg(CONN, "wpa_versions 0x%x cipher_pairwise 0x%x\n", 1732 sec->wpa_versions, sec->cipher_pairwise); 1733 1734 if (sec->wpa_versions & (NL80211_WPA_VERSION_1 | NL80211_WPA_VERSION_2)) 1735 return 0; 1736 1737 if (!(sec->cipher_pairwise & 1738 (WLAN_CIPHER_SUITE_WEP40 | WLAN_CIPHER_SUITE_WEP104))) 1739 return 0; 1740 1741 memset(&key, 0, sizeof(key)); 1742 key.len = (u32) sme->key_len; 1743 key.index = (u32) sme->key_idx; 1744 if (key.len > sizeof(key.data)) { 1745 brcmf_err("Too long key length (%u)\n", key.len); 1746 return -EINVAL; 1747 } 1748 memcpy(key.data, sme->key, key.len); 1749 key.flags = BRCMF_PRIMARY_KEY; 1750 switch (sec->cipher_pairwise) { 1751 case WLAN_CIPHER_SUITE_WEP40: 1752 key.algo = CRYPTO_ALGO_WEP1; 1753 break; 1754 case WLAN_CIPHER_SUITE_WEP104: 1755 key.algo = CRYPTO_ALGO_WEP128; 1756 break; 1757 default: 1758 brcmf_err("Invalid algorithm (%d)\n", 1759 sme->crypto.ciphers_pairwise[0]); 1760 return -EINVAL; 1761 } 1762 /* Set the new key/index */ 1763 brcmf_dbg(CONN, "key length (%d) key index (%d) algo (%d)\n", 1764 key.len, key.index, key.algo); 1765 brcmf_dbg(CONN, "key \"%s\"\n", key.data); 1766 err = send_key_to_dongle(netdev_priv(ndev), &key); 1767 if (err) 1768 return err; 1769 1770 if (sec->auth_type == NL80211_AUTHTYPE_SHARED_KEY) { 1771 brcmf_dbg(CONN, "set auth_type to shared key\n"); 1772 val = WL_AUTH_SHARED_KEY; /* shared key */ 1773 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "auth", val); 1774 if (err) 1775 brcmf_err("set auth failed (%d)\n", err); 1776 } 1777 return err; 1778 } 1779 1780 static 1781 enum nl80211_auth_type brcmf_war_auth_type(struct brcmf_if *ifp, 1782 enum nl80211_auth_type type) 1783 { 1784 if (type == NL80211_AUTHTYPE_AUTOMATIC && 1785 brcmf_feat_is_quirk_enabled(ifp, BRCMF_FEAT_QUIRK_AUTO_AUTH)) { 1786 brcmf_dbg(CONN, "WAR: use OPEN instead of AUTO\n"); 1787 type = NL80211_AUTHTYPE_OPEN_SYSTEM; 1788 } 1789 return type; 1790 } 1791 1792 static void brcmf_set_join_pref(struct brcmf_if *ifp, 1793 struct cfg80211_bss_selection *bss_select) 1794 { 1795 struct brcmf_join_pref_params join_pref_params[2]; 1796 enum nl80211_band band; 1797 int err, i = 0; 1798 1799 join_pref_params[i].len = 2; 1800 join_pref_params[i].rssi_gain = 0; 1801 1802 if (bss_select->behaviour != NL80211_BSS_SELECT_ATTR_BAND_PREF) 1803 brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_ASSOC_PREFER, WLC_BAND_AUTO); 1804 1805 switch (bss_select->behaviour) { 1806 case __NL80211_BSS_SELECT_ATTR_INVALID: 1807 brcmf_c_set_joinpref_default(ifp); 1808 return; 1809 case NL80211_BSS_SELECT_ATTR_BAND_PREF: 1810 join_pref_params[i].type = BRCMF_JOIN_PREF_BAND; 1811 band = bss_select->param.band_pref; 1812 join_pref_params[i].band = nl80211_band_to_fwil(band); 1813 i++; 1814 break; 1815 case NL80211_BSS_SELECT_ATTR_RSSI_ADJUST: 1816 join_pref_params[i].type = BRCMF_JOIN_PREF_RSSI_DELTA; 1817 band = bss_select->param.adjust.band; 1818 join_pref_params[i].band = nl80211_band_to_fwil(band); 1819 join_pref_params[i].rssi_gain = bss_select->param.adjust.delta; 1820 i++; 1821 break; 1822 case NL80211_BSS_SELECT_ATTR_RSSI: 1823 default: 1824 break; 1825 } 1826 join_pref_params[i].type = BRCMF_JOIN_PREF_RSSI; 1827 join_pref_params[i].len = 2; 1828 join_pref_params[i].rssi_gain = 0; 1829 join_pref_params[i].band = 0; 1830 err = brcmf_fil_iovar_data_set(ifp, "join_pref", join_pref_params, 1831 sizeof(join_pref_params)); 1832 if (err) 1833 brcmf_err("Set join_pref error (%d)\n", err); 1834 } 1835 1836 static s32 1837 brcmf_cfg80211_connect(struct wiphy *wiphy, struct net_device *ndev, 1838 struct cfg80211_connect_params *sme) 1839 { 1840 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 1841 struct brcmf_if *ifp = netdev_priv(ndev); 1842 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile; 1843 struct ieee80211_channel *chan = sme->channel; 1844 struct brcmf_join_params join_params; 1845 size_t join_params_size; 1846 const struct brcmf_tlv *rsn_ie; 1847 const struct brcmf_vs_tlv *wpa_ie; 1848 const void *ie; 1849 u32 ie_len; 1850 struct brcmf_ext_join_params_le *ext_join_params; 1851 u16 chanspec; 1852 s32 err = 0; 1853 u32 ssid_len; 1854 1855 brcmf_dbg(TRACE, "Enter\n"); 1856 if (!check_vif_up(ifp->vif)) 1857 return -EIO; 1858 1859 if (!sme->ssid) { 1860 brcmf_err("Invalid ssid\n"); 1861 return -EOPNOTSUPP; 1862 } 1863 1864 if (ifp->vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif) { 1865 /* A normal (non P2P) connection request setup. */ 1866 ie = NULL; 1867 ie_len = 0; 1868 /* find the WPA_IE */ 1869 wpa_ie = brcmf_find_wpaie((u8 *)sme->ie, sme->ie_len); 1870 if (wpa_ie) { 1871 ie = wpa_ie; 1872 ie_len = wpa_ie->len + TLV_HDR_LEN; 1873 } else { 1874 /* find the RSN_IE */ 1875 rsn_ie = brcmf_parse_tlvs((const u8 *)sme->ie, 1876 sme->ie_len, 1877 WLAN_EID_RSN); 1878 if (rsn_ie) { 1879 ie = rsn_ie; 1880 ie_len = rsn_ie->len + TLV_HDR_LEN; 1881 } 1882 } 1883 brcmf_fil_iovar_data_set(ifp, "wpaie", ie, ie_len); 1884 } 1885 1886 err = brcmf_vif_set_mgmt_ie(ifp->vif, BRCMF_VNDR_IE_ASSOCREQ_FLAG, 1887 sme->ie, sme->ie_len); 1888 if (err) 1889 brcmf_err("Set Assoc REQ IE Failed\n"); 1890 else 1891 brcmf_dbg(TRACE, "Applied Vndr IEs for Assoc request\n"); 1892 1893 set_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state); 1894 1895 if (chan) { 1896 cfg->channel = 1897 ieee80211_frequency_to_channel(chan->center_freq); 1898 chanspec = channel_to_chanspec(&cfg->d11inf, chan); 1899 brcmf_dbg(CONN, "channel=%d, center_req=%d, chanspec=0x%04x\n", 1900 cfg->channel, chan->center_freq, chanspec); 1901 } else { 1902 cfg->channel = 0; 1903 chanspec = 0; 1904 } 1905 1906 brcmf_dbg(INFO, "ie (%p), ie_len (%zd)\n", sme->ie, sme->ie_len); 1907 1908 err = brcmf_set_wpa_version(ndev, sme); 1909 if (err) { 1910 brcmf_err("wl_set_wpa_version failed (%d)\n", err); 1911 goto done; 1912 } 1913 1914 sme->auth_type = brcmf_war_auth_type(ifp, sme->auth_type); 1915 err = brcmf_set_auth_type(ndev, sme); 1916 if (err) { 1917 brcmf_err("wl_set_auth_type failed (%d)\n", err); 1918 goto done; 1919 } 1920 1921 err = brcmf_set_wsec_mode(ndev, sme); 1922 if (err) { 1923 brcmf_err("wl_set_set_cipher failed (%d)\n", err); 1924 goto done; 1925 } 1926 1927 err = brcmf_set_key_mgmt(ndev, sme); 1928 if (err) { 1929 brcmf_err("wl_set_key_mgmt failed (%d)\n", err); 1930 goto done; 1931 } 1932 1933 err = brcmf_set_sharedkey(ndev, sme); 1934 if (err) { 1935 brcmf_err("brcmf_set_sharedkey failed (%d)\n", err); 1936 goto done; 1937 } 1938 1939 if (sme->crypto.psk) { 1940 if (WARN_ON(profile->use_fwsup != BRCMF_PROFILE_FWSUP_NONE)) { 1941 err = -EINVAL; 1942 goto done; 1943 } 1944 brcmf_dbg(INFO, "using PSK offload\n"); 1945 profile->use_fwsup = BRCMF_PROFILE_FWSUP_PSK; 1946 } 1947 1948 if (profile->use_fwsup != BRCMF_PROFILE_FWSUP_NONE) { 1949 /* enable firmware supplicant for this interface */ 1950 err = brcmf_fil_iovar_int_set(ifp, "sup_wpa", 1); 1951 if (err < 0) { 1952 brcmf_err("failed to enable fw supplicant\n"); 1953 goto done; 1954 } 1955 } 1956 1957 if (profile->use_fwsup == BRCMF_PROFILE_FWSUP_PSK) { 1958 err = brcmf_set_pmk(ifp, sme->crypto.psk, 1959 BRCMF_WSEC_MAX_PSK_LEN); 1960 if (err) 1961 goto done; 1962 } 1963 1964 /* Join with specific BSSID and cached SSID 1965 * If SSID is zero join based on BSSID only 1966 */ 1967 join_params_size = offsetof(struct brcmf_ext_join_params_le, assoc_le) + 1968 offsetof(struct brcmf_assoc_params_le, chanspec_list); 1969 if (cfg->channel) 1970 join_params_size += sizeof(u16); 1971 ext_join_params = kzalloc(join_params_size, GFP_KERNEL); 1972 if (ext_join_params == NULL) { 1973 err = -ENOMEM; 1974 goto done; 1975 } 1976 ssid_len = min_t(u32, sme->ssid_len, IEEE80211_MAX_SSID_LEN); 1977 ext_join_params->ssid_le.SSID_len = cpu_to_le32(ssid_len); 1978 memcpy(&ext_join_params->ssid_le.SSID, sme->ssid, ssid_len); 1979 if (ssid_len < IEEE80211_MAX_SSID_LEN) 1980 brcmf_dbg(CONN, "SSID \"%s\", len (%d)\n", 1981 ext_join_params->ssid_le.SSID, ssid_len); 1982 1983 /* Set up join scan parameters */ 1984 ext_join_params->scan_le.scan_type = -1; 1985 ext_join_params->scan_le.home_time = cpu_to_le32(-1); 1986 1987 if (sme->bssid) 1988 memcpy(&ext_join_params->assoc_le.bssid, sme->bssid, ETH_ALEN); 1989 else 1990 eth_broadcast_addr(ext_join_params->assoc_le.bssid); 1991 1992 if (cfg->channel) { 1993 ext_join_params->assoc_le.chanspec_num = cpu_to_le32(1); 1994 1995 ext_join_params->assoc_le.chanspec_list[0] = 1996 cpu_to_le16(chanspec); 1997 /* Increase dwell time to receive probe response or detect 1998 * beacon from target AP at a noisy air only during connect 1999 * command. 2000 */ 2001 ext_join_params->scan_le.active_time = 2002 cpu_to_le32(BRCMF_SCAN_JOIN_ACTIVE_DWELL_TIME_MS); 2003 ext_join_params->scan_le.passive_time = 2004 cpu_to_le32(BRCMF_SCAN_JOIN_PASSIVE_DWELL_TIME_MS); 2005 /* To sync with presence period of VSDB GO send probe request 2006 * more frequently. Probe request will be stopped when it gets 2007 * probe response from target AP/GO. 2008 */ 2009 ext_join_params->scan_le.nprobes = 2010 cpu_to_le32(BRCMF_SCAN_JOIN_ACTIVE_DWELL_TIME_MS / 2011 BRCMF_SCAN_JOIN_PROBE_INTERVAL_MS); 2012 } else { 2013 ext_join_params->scan_le.active_time = cpu_to_le32(-1); 2014 ext_join_params->scan_le.passive_time = cpu_to_le32(-1); 2015 ext_join_params->scan_le.nprobes = cpu_to_le32(-1); 2016 } 2017 2018 brcmf_set_join_pref(ifp, &sme->bss_select); 2019 2020 err = brcmf_fil_bsscfg_data_set(ifp, "join", ext_join_params, 2021 join_params_size); 2022 kfree(ext_join_params); 2023 if (!err) 2024 /* This is it. join command worked, we are done */ 2025 goto done; 2026 2027 /* join command failed, fallback to set ssid */ 2028 memset(&join_params, 0, sizeof(join_params)); 2029 join_params_size = sizeof(join_params.ssid_le); 2030 2031 memcpy(&join_params.ssid_le.SSID, sme->ssid, ssid_len); 2032 join_params.ssid_le.SSID_len = cpu_to_le32(ssid_len); 2033 2034 if (sme->bssid) 2035 memcpy(join_params.params_le.bssid, sme->bssid, ETH_ALEN); 2036 else 2037 eth_broadcast_addr(join_params.params_le.bssid); 2038 2039 if (cfg->channel) { 2040 join_params.params_le.chanspec_list[0] = cpu_to_le16(chanspec); 2041 join_params.params_le.chanspec_num = cpu_to_le32(1); 2042 join_params_size += sizeof(join_params.params_le); 2043 } 2044 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID, 2045 &join_params, join_params_size); 2046 if (err) 2047 brcmf_err("BRCMF_C_SET_SSID failed (%d)\n", err); 2048 2049 done: 2050 if (err) 2051 clear_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state); 2052 brcmf_dbg(TRACE, "Exit\n"); 2053 return err; 2054 } 2055 2056 static s32 2057 brcmf_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *ndev, 2058 u16 reason_code) 2059 { 2060 struct brcmf_if *ifp = netdev_priv(ndev); 2061 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile; 2062 struct brcmf_scb_val_le scbval; 2063 s32 err = 0; 2064 2065 brcmf_dbg(TRACE, "Enter. Reason code = %d\n", reason_code); 2066 if (!check_vif_up(ifp->vif)) 2067 return -EIO; 2068 2069 clear_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state); 2070 clear_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state); 2071 cfg80211_disconnected(ndev, reason_code, NULL, 0, true, GFP_KERNEL); 2072 2073 memcpy(&scbval.ea, &profile->bssid, ETH_ALEN); 2074 scbval.val = cpu_to_le32(reason_code); 2075 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_DISASSOC, 2076 &scbval, sizeof(scbval)); 2077 if (err) 2078 brcmf_err("error (%d)\n", err); 2079 2080 brcmf_dbg(TRACE, "Exit\n"); 2081 return err; 2082 } 2083 2084 static s32 2085 brcmf_cfg80211_set_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev, 2086 enum nl80211_tx_power_setting type, s32 mbm) 2087 { 2088 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 2089 struct net_device *ndev = cfg_to_ndev(cfg); 2090 struct brcmf_if *ifp = netdev_priv(ndev); 2091 s32 err; 2092 s32 disable; 2093 u32 qdbm = 127; 2094 2095 brcmf_dbg(TRACE, "Enter %d %d\n", type, mbm); 2096 if (!check_vif_up(ifp->vif)) 2097 return -EIO; 2098 2099 switch (type) { 2100 case NL80211_TX_POWER_AUTOMATIC: 2101 break; 2102 case NL80211_TX_POWER_LIMITED: 2103 case NL80211_TX_POWER_FIXED: 2104 if (mbm < 0) { 2105 brcmf_err("TX_POWER_FIXED - dbm is negative\n"); 2106 err = -EINVAL; 2107 goto done; 2108 } 2109 qdbm = MBM_TO_DBM(4 * mbm); 2110 if (qdbm > 127) 2111 qdbm = 127; 2112 qdbm |= WL_TXPWR_OVERRIDE; 2113 break; 2114 default: 2115 brcmf_err("Unsupported type %d\n", type); 2116 err = -EINVAL; 2117 goto done; 2118 } 2119 /* Make sure radio is off or on as far as software is concerned */ 2120 disable = WL_RADIO_SW_DISABLE << 16; 2121 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_RADIO, disable); 2122 if (err) 2123 brcmf_err("WLC_SET_RADIO error (%d)\n", err); 2124 2125 err = brcmf_fil_iovar_int_set(ifp, "qtxpower", qdbm); 2126 if (err) 2127 brcmf_err("qtxpower error (%d)\n", err); 2128 2129 done: 2130 brcmf_dbg(TRACE, "Exit %d (qdbm)\n", qdbm & ~WL_TXPWR_OVERRIDE); 2131 return err; 2132 } 2133 2134 static s32 2135 brcmf_cfg80211_get_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev, 2136 s32 *dbm) 2137 { 2138 struct brcmf_cfg80211_vif *vif = wdev_to_vif(wdev); 2139 s32 qdbm = 0; 2140 s32 err; 2141 2142 brcmf_dbg(TRACE, "Enter\n"); 2143 if (!check_vif_up(vif)) 2144 return -EIO; 2145 2146 err = brcmf_fil_iovar_int_get(vif->ifp, "qtxpower", &qdbm); 2147 if (err) { 2148 brcmf_err("error (%d)\n", err); 2149 goto done; 2150 } 2151 *dbm = (qdbm & ~WL_TXPWR_OVERRIDE) / 4; 2152 2153 done: 2154 brcmf_dbg(TRACE, "Exit (0x%x %d)\n", qdbm, *dbm); 2155 return err; 2156 } 2157 2158 static s32 2159 brcmf_cfg80211_config_default_key(struct wiphy *wiphy, struct net_device *ndev, 2160 u8 key_idx, bool unicast, bool multicast) 2161 { 2162 struct brcmf_if *ifp = netdev_priv(ndev); 2163 u32 index; 2164 u32 wsec; 2165 s32 err = 0; 2166 2167 brcmf_dbg(TRACE, "Enter\n"); 2168 brcmf_dbg(CONN, "key index (%d)\n", key_idx); 2169 if (!check_vif_up(ifp->vif)) 2170 return -EIO; 2171 2172 err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec); 2173 if (err) { 2174 brcmf_err("WLC_GET_WSEC error (%d)\n", err); 2175 goto done; 2176 } 2177 2178 if (wsec & WEP_ENABLED) { 2179 /* Just select a new current key */ 2180 index = key_idx; 2181 err = brcmf_fil_cmd_int_set(ifp, 2182 BRCMF_C_SET_KEY_PRIMARY, index); 2183 if (err) 2184 brcmf_err("error (%d)\n", err); 2185 } 2186 done: 2187 brcmf_dbg(TRACE, "Exit\n"); 2188 return err; 2189 } 2190 2191 static s32 2192 brcmf_cfg80211_del_key(struct wiphy *wiphy, struct net_device *ndev, 2193 u8 key_idx, bool pairwise, const u8 *mac_addr) 2194 { 2195 struct brcmf_if *ifp = netdev_priv(ndev); 2196 struct brcmf_wsec_key *key; 2197 s32 err; 2198 2199 brcmf_dbg(TRACE, "Enter\n"); 2200 brcmf_dbg(CONN, "key index (%d)\n", key_idx); 2201 2202 if (!check_vif_up(ifp->vif)) 2203 return -EIO; 2204 2205 if (key_idx >= BRCMF_MAX_DEFAULT_KEYS) { 2206 /* we ignore this key index in this case */ 2207 return -EINVAL; 2208 } 2209 2210 key = &ifp->vif->profile.key[key_idx]; 2211 2212 if (key->algo == CRYPTO_ALGO_OFF) { 2213 brcmf_dbg(CONN, "Ignore clearing of (never configured) key\n"); 2214 return -EINVAL; 2215 } 2216 2217 memset(key, 0, sizeof(*key)); 2218 key->index = (u32)key_idx; 2219 key->flags = BRCMF_PRIMARY_KEY; 2220 2221 /* Clear the key/index */ 2222 err = send_key_to_dongle(ifp, key); 2223 2224 brcmf_dbg(TRACE, "Exit\n"); 2225 return err; 2226 } 2227 2228 static s32 2229 brcmf_cfg80211_add_key(struct wiphy *wiphy, struct net_device *ndev, 2230 u8 key_idx, bool pairwise, const u8 *mac_addr, 2231 struct key_params *params) 2232 { 2233 struct brcmf_if *ifp = netdev_priv(ndev); 2234 struct brcmf_wsec_key *key; 2235 s32 val; 2236 s32 wsec; 2237 s32 err; 2238 u8 keybuf[8]; 2239 bool ext_key; 2240 2241 brcmf_dbg(TRACE, "Enter\n"); 2242 brcmf_dbg(CONN, "key index (%d)\n", key_idx); 2243 if (!check_vif_up(ifp->vif)) 2244 return -EIO; 2245 2246 if (key_idx >= BRCMF_MAX_DEFAULT_KEYS) { 2247 /* we ignore this key index in this case */ 2248 brcmf_err("invalid key index (%d)\n", key_idx); 2249 return -EINVAL; 2250 } 2251 2252 if (params->key_len == 0) 2253 return brcmf_cfg80211_del_key(wiphy, ndev, key_idx, pairwise, 2254 mac_addr); 2255 2256 if (params->key_len > sizeof(key->data)) { 2257 brcmf_err("Too long key length (%u)\n", params->key_len); 2258 return -EINVAL; 2259 } 2260 2261 ext_key = false; 2262 if (mac_addr && (params->cipher != WLAN_CIPHER_SUITE_WEP40) && 2263 (params->cipher != WLAN_CIPHER_SUITE_WEP104)) { 2264 brcmf_dbg(TRACE, "Ext key, mac %pM", mac_addr); 2265 ext_key = true; 2266 } 2267 2268 key = &ifp->vif->profile.key[key_idx]; 2269 memset(key, 0, sizeof(*key)); 2270 if ((ext_key) && (!is_multicast_ether_addr(mac_addr))) 2271 memcpy((char *)&key->ea, (void *)mac_addr, ETH_ALEN); 2272 key->len = params->key_len; 2273 key->index = key_idx; 2274 memcpy(key->data, params->key, key->len); 2275 if (!ext_key) 2276 key->flags = BRCMF_PRIMARY_KEY; 2277 2278 switch (params->cipher) { 2279 case WLAN_CIPHER_SUITE_WEP40: 2280 key->algo = CRYPTO_ALGO_WEP1; 2281 val = WEP_ENABLED; 2282 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP40\n"); 2283 break; 2284 case WLAN_CIPHER_SUITE_WEP104: 2285 key->algo = CRYPTO_ALGO_WEP128; 2286 val = WEP_ENABLED; 2287 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP104\n"); 2288 break; 2289 case WLAN_CIPHER_SUITE_TKIP: 2290 if (!brcmf_is_apmode(ifp->vif)) { 2291 brcmf_dbg(CONN, "Swapping RX/TX MIC key\n"); 2292 memcpy(keybuf, &key->data[24], sizeof(keybuf)); 2293 memcpy(&key->data[24], &key->data[16], sizeof(keybuf)); 2294 memcpy(&key->data[16], keybuf, sizeof(keybuf)); 2295 } 2296 key->algo = CRYPTO_ALGO_TKIP; 2297 val = TKIP_ENABLED; 2298 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_TKIP\n"); 2299 break; 2300 case WLAN_CIPHER_SUITE_AES_CMAC: 2301 key->algo = CRYPTO_ALGO_AES_CCM; 2302 val = AES_ENABLED; 2303 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_AES_CMAC\n"); 2304 break; 2305 case WLAN_CIPHER_SUITE_CCMP: 2306 key->algo = CRYPTO_ALGO_AES_CCM; 2307 val = AES_ENABLED; 2308 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_CCMP\n"); 2309 break; 2310 default: 2311 brcmf_err("Invalid cipher (0x%x)\n", params->cipher); 2312 err = -EINVAL; 2313 goto done; 2314 } 2315 2316 err = send_key_to_dongle(ifp, key); 2317 if (ext_key || err) 2318 goto done; 2319 2320 err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec); 2321 if (err) { 2322 brcmf_err("get wsec error (%d)\n", err); 2323 goto done; 2324 } 2325 wsec |= val; 2326 err = brcmf_fil_bsscfg_int_set(ifp, "wsec", wsec); 2327 if (err) { 2328 brcmf_err("set wsec error (%d)\n", err); 2329 goto done; 2330 } 2331 2332 done: 2333 brcmf_dbg(TRACE, "Exit\n"); 2334 return err; 2335 } 2336 2337 static s32 2338 brcmf_cfg80211_get_key(struct wiphy *wiphy, struct net_device *ndev, u8 key_idx, 2339 bool pairwise, const u8 *mac_addr, void *cookie, 2340 void (*callback)(void *cookie, 2341 struct key_params *params)) 2342 { 2343 struct key_params params; 2344 struct brcmf_if *ifp = netdev_priv(ndev); 2345 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile; 2346 struct brcmf_cfg80211_security *sec; 2347 s32 wsec; 2348 s32 err = 0; 2349 2350 brcmf_dbg(TRACE, "Enter\n"); 2351 brcmf_dbg(CONN, "key index (%d)\n", key_idx); 2352 if (!check_vif_up(ifp->vif)) 2353 return -EIO; 2354 2355 memset(¶ms, 0, sizeof(params)); 2356 2357 err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec); 2358 if (err) { 2359 brcmf_err("WLC_GET_WSEC error (%d)\n", err); 2360 /* Ignore this error, may happen during DISASSOC */ 2361 err = -EAGAIN; 2362 goto done; 2363 } 2364 if (wsec & WEP_ENABLED) { 2365 sec = &profile->sec; 2366 if (sec->cipher_pairwise & WLAN_CIPHER_SUITE_WEP40) { 2367 params.cipher = WLAN_CIPHER_SUITE_WEP40; 2368 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP40\n"); 2369 } else if (sec->cipher_pairwise & WLAN_CIPHER_SUITE_WEP104) { 2370 params.cipher = WLAN_CIPHER_SUITE_WEP104; 2371 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP104\n"); 2372 } 2373 } else if (wsec & TKIP_ENABLED) { 2374 params.cipher = WLAN_CIPHER_SUITE_TKIP; 2375 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_TKIP\n"); 2376 } else if (wsec & AES_ENABLED) { 2377 params.cipher = WLAN_CIPHER_SUITE_AES_CMAC; 2378 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_AES_CMAC\n"); 2379 } else { 2380 brcmf_err("Invalid algo (0x%x)\n", wsec); 2381 err = -EINVAL; 2382 goto done; 2383 } 2384 callback(cookie, ¶ms); 2385 2386 done: 2387 brcmf_dbg(TRACE, "Exit\n"); 2388 return err; 2389 } 2390 2391 static s32 2392 brcmf_cfg80211_config_default_mgmt_key(struct wiphy *wiphy, 2393 struct net_device *ndev, u8 key_idx) 2394 { 2395 struct brcmf_if *ifp = netdev_priv(ndev); 2396 2397 brcmf_dbg(TRACE, "Enter key_idx %d\n", key_idx); 2398 2399 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MFP)) 2400 return 0; 2401 2402 brcmf_dbg(INFO, "Not supported\n"); 2403 2404 return -EOPNOTSUPP; 2405 } 2406 2407 static void 2408 brcmf_cfg80211_reconfigure_wep(struct brcmf_if *ifp) 2409 { 2410 s32 err; 2411 u8 key_idx; 2412 struct brcmf_wsec_key *key; 2413 s32 wsec; 2414 2415 for (key_idx = 0; key_idx < BRCMF_MAX_DEFAULT_KEYS; key_idx++) { 2416 key = &ifp->vif->profile.key[key_idx]; 2417 if ((key->algo == CRYPTO_ALGO_WEP1) || 2418 (key->algo == CRYPTO_ALGO_WEP128)) 2419 break; 2420 } 2421 if (key_idx == BRCMF_MAX_DEFAULT_KEYS) 2422 return; 2423 2424 err = send_key_to_dongle(ifp, key); 2425 if (err) { 2426 brcmf_err("Setting WEP key failed (%d)\n", err); 2427 return; 2428 } 2429 err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec); 2430 if (err) { 2431 brcmf_err("get wsec error (%d)\n", err); 2432 return; 2433 } 2434 wsec |= WEP_ENABLED; 2435 err = brcmf_fil_bsscfg_int_set(ifp, "wsec", wsec); 2436 if (err) 2437 brcmf_err("set wsec error (%d)\n", err); 2438 } 2439 2440 static void brcmf_convert_sta_flags(u32 fw_sta_flags, struct station_info *si) 2441 { 2442 struct nl80211_sta_flag_update *sfu; 2443 2444 brcmf_dbg(TRACE, "flags %08x\n", fw_sta_flags); 2445 si->filled |= BIT_ULL(NL80211_STA_INFO_STA_FLAGS); 2446 sfu = &si->sta_flags; 2447 sfu->mask = BIT(NL80211_STA_FLAG_WME) | 2448 BIT(NL80211_STA_FLAG_AUTHENTICATED) | 2449 BIT(NL80211_STA_FLAG_ASSOCIATED) | 2450 BIT(NL80211_STA_FLAG_AUTHORIZED); 2451 if (fw_sta_flags & BRCMF_STA_WME) 2452 sfu->set |= BIT(NL80211_STA_FLAG_WME); 2453 if (fw_sta_flags & BRCMF_STA_AUTHE) 2454 sfu->set |= BIT(NL80211_STA_FLAG_AUTHENTICATED); 2455 if (fw_sta_flags & BRCMF_STA_ASSOC) 2456 sfu->set |= BIT(NL80211_STA_FLAG_ASSOCIATED); 2457 if (fw_sta_flags & BRCMF_STA_AUTHO) 2458 sfu->set |= BIT(NL80211_STA_FLAG_AUTHORIZED); 2459 } 2460 2461 static void brcmf_fill_bss_param(struct brcmf_if *ifp, struct station_info *si) 2462 { 2463 struct { 2464 __le32 len; 2465 struct brcmf_bss_info_le bss_le; 2466 } *buf; 2467 u16 capability; 2468 int err; 2469 2470 buf = kzalloc(WL_BSS_INFO_MAX, GFP_KERNEL); 2471 if (!buf) 2472 return; 2473 2474 buf->len = cpu_to_le32(WL_BSS_INFO_MAX); 2475 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BSS_INFO, buf, 2476 WL_BSS_INFO_MAX); 2477 if (err) { 2478 brcmf_err("Failed to get bss info (%d)\n", err); 2479 goto out_kfree; 2480 } 2481 si->filled |= BIT_ULL(NL80211_STA_INFO_BSS_PARAM); 2482 si->bss_param.beacon_interval = le16_to_cpu(buf->bss_le.beacon_period); 2483 si->bss_param.dtim_period = buf->bss_le.dtim_period; 2484 capability = le16_to_cpu(buf->bss_le.capability); 2485 if (capability & IEEE80211_HT_STBC_PARAM_DUAL_CTS_PROT) 2486 si->bss_param.flags |= BSS_PARAM_FLAGS_CTS_PROT; 2487 if (capability & WLAN_CAPABILITY_SHORT_PREAMBLE) 2488 si->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_PREAMBLE; 2489 if (capability & WLAN_CAPABILITY_SHORT_SLOT_TIME) 2490 si->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_SLOT_TIME; 2491 2492 out_kfree: 2493 kfree(buf); 2494 } 2495 2496 static s32 2497 brcmf_cfg80211_get_station_ibss(struct brcmf_if *ifp, 2498 struct station_info *sinfo) 2499 { 2500 struct brcmf_scb_val_le scbval; 2501 struct brcmf_pktcnt_le pktcnt; 2502 s32 err; 2503 u32 rate; 2504 u32 rssi; 2505 2506 /* Get the current tx rate */ 2507 err = brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_RATE, &rate); 2508 if (err < 0) { 2509 brcmf_err("BRCMF_C_GET_RATE error (%d)\n", err); 2510 return err; 2511 } 2512 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE); 2513 sinfo->txrate.legacy = rate * 5; 2514 2515 memset(&scbval, 0, sizeof(scbval)); 2516 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_RSSI, &scbval, 2517 sizeof(scbval)); 2518 if (err) { 2519 brcmf_err("BRCMF_C_GET_RSSI error (%d)\n", err); 2520 return err; 2521 } 2522 rssi = le32_to_cpu(scbval.val); 2523 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL); 2524 sinfo->signal = rssi; 2525 2526 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_GET_PKTCNTS, &pktcnt, 2527 sizeof(pktcnt)); 2528 if (err) { 2529 brcmf_err("BRCMF_C_GET_GET_PKTCNTS error (%d)\n", err); 2530 return err; 2531 } 2532 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_RX_PACKETS) | 2533 BIT_ULL(NL80211_STA_INFO_RX_DROP_MISC) | 2534 BIT_ULL(NL80211_STA_INFO_TX_PACKETS) | 2535 BIT_ULL(NL80211_STA_INFO_TX_FAILED); 2536 sinfo->rx_packets = le32_to_cpu(pktcnt.rx_good_pkt); 2537 sinfo->rx_dropped_misc = le32_to_cpu(pktcnt.rx_bad_pkt); 2538 sinfo->tx_packets = le32_to_cpu(pktcnt.tx_good_pkt); 2539 sinfo->tx_failed = le32_to_cpu(pktcnt.tx_bad_pkt); 2540 2541 return 0; 2542 } 2543 2544 static s32 2545 brcmf_cfg80211_get_station(struct wiphy *wiphy, struct net_device *ndev, 2546 const u8 *mac, struct station_info *sinfo) 2547 { 2548 struct brcmf_if *ifp = netdev_priv(ndev); 2549 struct brcmf_scb_val_le scb_val; 2550 s32 err = 0; 2551 struct brcmf_sta_info_le sta_info_le; 2552 u32 sta_flags; 2553 u32 is_tdls_peer; 2554 s32 total_rssi; 2555 s32 count_rssi; 2556 int rssi; 2557 u32 i; 2558 2559 brcmf_dbg(TRACE, "Enter, MAC %pM\n", mac); 2560 if (!check_vif_up(ifp->vif)) 2561 return -EIO; 2562 2563 if (brcmf_is_ibssmode(ifp->vif)) 2564 return brcmf_cfg80211_get_station_ibss(ifp, sinfo); 2565 2566 memset(&sta_info_le, 0, sizeof(sta_info_le)); 2567 memcpy(&sta_info_le, mac, ETH_ALEN); 2568 err = brcmf_fil_iovar_data_get(ifp, "tdls_sta_info", 2569 &sta_info_le, 2570 sizeof(sta_info_le)); 2571 is_tdls_peer = !err; 2572 if (err) { 2573 err = brcmf_fil_iovar_data_get(ifp, "sta_info", 2574 &sta_info_le, 2575 sizeof(sta_info_le)); 2576 if (err < 0) { 2577 brcmf_err("GET STA INFO failed, %d\n", err); 2578 goto done; 2579 } 2580 } 2581 brcmf_dbg(TRACE, "version %d\n", le16_to_cpu(sta_info_le.ver)); 2582 sinfo->filled = BIT_ULL(NL80211_STA_INFO_INACTIVE_TIME); 2583 sinfo->inactive_time = le32_to_cpu(sta_info_le.idle) * 1000; 2584 sta_flags = le32_to_cpu(sta_info_le.flags); 2585 brcmf_convert_sta_flags(sta_flags, sinfo); 2586 sinfo->sta_flags.mask |= BIT(NL80211_STA_FLAG_TDLS_PEER); 2587 if (is_tdls_peer) 2588 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_TDLS_PEER); 2589 else 2590 sinfo->sta_flags.set &= ~BIT(NL80211_STA_FLAG_TDLS_PEER); 2591 if (sta_flags & BRCMF_STA_ASSOC) { 2592 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_CONNECTED_TIME); 2593 sinfo->connected_time = le32_to_cpu(sta_info_le.in); 2594 brcmf_fill_bss_param(ifp, sinfo); 2595 } 2596 if (sta_flags & BRCMF_STA_SCBSTATS) { 2597 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_FAILED); 2598 sinfo->tx_failed = le32_to_cpu(sta_info_le.tx_failures); 2599 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_PACKETS); 2600 sinfo->tx_packets = le32_to_cpu(sta_info_le.tx_pkts); 2601 sinfo->tx_packets += le32_to_cpu(sta_info_le.tx_mcast_pkts); 2602 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_RX_PACKETS); 2603 sinfo->rx_packets = le32_to_cpu(sta_info_le.rx_ucast_pkts); 2604 sinfo->rx_packets += le32_to_cpu(sta_info_le.rx_mcast_pkts); 2605 if (sinfo->tx_packets) { 2606 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE); 2607 sinfo->txrate.legacy = 2608 le32_to_cpu(sta_info_le.tx_rate) / 100; 2609 } 2610 if (sinfo->rx_packets) { 2611 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_RX_BITRATE); 2612 sinfo->rxrate.legacy = 2613 le32_to_cpu(sta_info_le.rx_rate) / 100; 2614 } 2615 if (le16_to_cpu(sta_info_le.ver) >= 4) { 2616 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BYTES); 2617 sinfo->tx_bytes = le64_to_cpu(sta_info_le.tx_tot_bytes); 2618 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_RX_BYTES); 2619 sinfo->rx_bytes = le64_to_cpu(sta_info_le.rx_tot_bytes); 2620 } 2621 total_rssi = 0; 2622 count_rssi = 0; 2623 for (i = 0; i < BRCMF_ANT_MAX; i++) { 2624 if (sta_info_le.rssi[i]) { 2625 sinfo->chain_signal_avg[count_rssi] = 2626 sta_info_le.rssi[i]; 2627 sinfo->chain_signal[count_rssi] = 2628 sta_info_le.rssi[i]; 2629 total_rssi += sta_info_le.rssi[i]; 2630 count_rssi++; 2631 } 2632 } 2633 if (count_rssi) { 2634 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_CHAIN_SIGNAL); 2635 sinfo->chains = count_rssi; 2636 2637 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL); 2638 total_rssi /= count_rssi; 2639 sinfo->signal = total_rssi; 2640 } else if (test_bit(BRCMF_VIF_STATUS_CONNECTED, 2641 &ifp->vif->sme_state)) { 2642 memset(&scb_val, 0, sizeof(scb_val)); 2643 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_RSSI, 2644 &scb_val, sizeof(scb_val)); 2645 if (err) { 2646 brcmf_err("Could not get rssi (%d)\n", err); 2647 goto done; 2648 } else { 2649 rssi = le32_to_cpu(scb_val.val); 2650 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL); 2651 sinfo->signal = rssi; 2652 brcmf_dbg(CONN, "RSSI %d dBm\n", rssi); 2653 } 2654 } 2655 } 2656 done: 2657 brcmf_dbg(TRACE, "Exit\n"); 2658 return err; 2659 } 2660 2661 static int 2662 brcmf_cfg80211_dump_station(struct wiphy *wiphy, struct net_device *ndev, 2663 int idx, u8 *mac, struct station_info *sinfo) 2664 { 2665 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 2666 struct brcmf_if *ifp = netdev_priv(ndev); 2667 s32 err; 2668 2669 brcmf_dbg(TRACE, "Enter, idx %d\n", idx); 2670 2671 if (idx == 0) { 2672 cfg->assoclist.count = cpu_to_le32(BRCMF_MAX_ASSOCLIST); 2673 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_ASSOCLIST, 2674 &cfg->assoclist, 2675 sizeof(cfg->assoclist)); 2676 if (err) { 2677 brcmf_err("BRCMF_C_GET_ASSOCLIST unsupported, err=%d\n", 2678 err); 2679 cfg->assoclist.count = 0; 2680 return -EOPNOTSUPP; 2681 } 2682 } 2683 if (idx < le32_to_cpu(cfg->assoclist.count)) { 2684 memcpy(mac, cfg->assoclist.mac[idx], ETH_ALEN); 2685 return brcmf_cfg80211_get_station(wiphy, ndev, mac, sinfo); 2686 } 2687 return -ENOENT; 2688 } 2689 2690 static s32 2691 brcmf_cfg80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *ndev, 2692 bool enabled, s32 timeout) 2693 { 2694 s32 pm; 2695 s32 err = 0; 2696 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 2697 struct brcmf_if *ifp = netdev_priv(ndev); 2698 2699 brcmf_dbg(TRACE, "Enter\n"); 2700 2701 /* 2702 * Powersave enable/disable request is coming from the 2703 * cfg80211 even before the interface is up. In that 2704 * scenario, driver will be storing the power save 2705 * preference in cfg struct to apply this to 2706 * FW later while initializing the dongle 2707 */ 2708 cfg->pwr_save = enabled; 2709 if (!check_vif_up(ifp->vif)) { 2710 2711 brcmf_dbg(INFO, "Device is not ready, storing the value in cfg_info struct\n"); 2712 goto done; 2713 } 2714 2715 pm = enabled ? PM_FAST : PM_OFF; 2716 /* Do not enable the power save after assoc if it is a p2p interface */ 2717 if (ifp->vif->wdev.iftype == NL80211_IFTYPE_P2P_CLIENT) { 2718 brcmf_dbg(INFO, "Do not enable power save for P2P clients\n"); 2719 pm = PM_OFF; 2720 } 2721 brcmf_dbg(INFO, "power save %s\n", (pm ? "enabled" : "disabled")); 2722 2723 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM, pm); 2724 if (err) { 2725 if (err == -ENODEV) 2726 brcmf_err("net_device is not ready yet\n"); 2727 else 2728 brcmf_err("error (%d)\n", err); 2729 } 2730 done: 2731 brcmf_dbg(TRACE, "Exit\n"); 2732 return err; 2733 } 2734 2735 static s32 brcmf_inform_single_bss(struct brcmf_cfg80211_info *cfg, 2736 struct brcmf_bss_info_le *bi) 2737 { 2738 struct wiphy *wiphy = cfg_to_wiphy(cfg); 2739 struct cfg80211_bss *bss; 2740 enum nl80211_band band; 2741 struct brcmu_chan ch; 2742 u16 channel; 2743 u32 freq; 2744 u16 notify_capability; 2745 u16 notify_interval; 2746 u8 *notify_ie; 2747 size_t notify_ielen; 2748 struct cfg80211_inform_bss bss_data = {}; 2749 2750 if (le32_to_cpu(bi->length) > WL_BSS_INFO_MAX) { 2751 brcmf_err("Bss info is larger than buffer. Discarding\n"); 2752 return 0; 2753 } 2754 2755 if (!bi->ctl_ch) { 2756 ch.chspec = le16_to_cpu(bi->chanspec); 2757 cfg->d11inf.decchspec(&ch); 2758 bi->ctl_ch = ch.control_ch_num; 2759 } 2760 channel = bi->ctl_ch; 2761 2762 if (channel <= CH_MAX_2G_CHANNEL) 2763 band = NL80211_BAND_2GHZ; 2764 else 2765 band = NL80211_BAND_5GHZ; 2766 2767 freq = ieee80211_channel_to_frequency(channel, band); 2768 bss_data.chan = ieee80211_get_channel(wiphy, freq); 2769 bss_data.scan_width = NL80211_BSS_CHAN_WIDTH_20; 2770 bss_data.boottime_ns = ktime_to_ns(ktime_get_boottime()); 2771 2772 notify_capability = le16_to_cpu(bi->capability); 2773 notify_interval = le16_to_cpu(bi->beacon_period); 2774 notify_ie = (u8 *)bi + le16_to_cpu(bi->ie_offset); 2775 notify_ielen = le32_to_cpu(bi->ie_length); 2776 bss_data.signal = (s16)le16_to_cpu(bi->RSSI) * 100; 2777 2778 brcmf_dbg(CONN, "bssid: %pM\n", bi->BSSID); 2779 brcmf_dbg(CONN, "Channel: %d(%d)\n", channel, freq); 2780 brcmf_dbg(CONN, "Capability: %X\n", notify_capability); 2781 brcmf_dbg(CONN, "Beacon interval: %d\n", notify_interval); 2782 brcmf_dbg(CONN, "Signal: %d\n", bss_data.signal); 2783 2784 bss = cfg80211_inform_bss_data(wiphy, &bss_data, 2785 CFG80211_BSS_FTYPE_UNKNOWN, 2786 (const u8 *)bi->BSSID, 2787 0, notify_capability, 2788 notify_interval, notify_ie, 2789 notify_ielen, GFP_KERNEL); 2790 2791 if (!bss) 2792 return -ENOMEM; 2793 2794 cfg80211_put_bss(wiphy, bss); 2795 2796 return 0; 2797 } 2798 2799 static struct brcmf_bss_info_le * 2800 next_bss_le(struct brcmf_scan_results *list, struct brcmf_bss_info_le *bss) 2801 { 2802 if (bss == NULL) 2803 return list->bss_info_le; 2804 return (struct brcmf_bss_info_le *)((unsigned long)bss + 2805 le32_to_cpu(bss->length)); 2806 } 2807 2808 static s32 brcmf_inform_bss(struct brcmf_cfg80211_info *cfg) 2809 { 2810 struct brcmf_scan_results *bss_list; 2811 struct brcmf_bss_info_le *bi = NULL; /* must be initialized */ 2812 s32 err = 0; 2813 int i; 2814 2815 bss_list = (struct brcmf_scan_results *)cfg->escan_info.escan_buf; 2816 if (bss_list->count != 0 && 2817 bss_list->version != BRCMF_BSS_INFO_VERSION) { 2818 brcmf_err("Version %d != WL_BSS_INFO_VERSION\n", 2819 bss_list->version); 2820 return -EOPNOTSUPP; 2821 } 2822 brcmf_dbg(SCAN, "scanned AP count (%d)\n", bss_list->count); 2823 for (i = 0; i < bss_list->count; i++) { 2824 bi = next_bss_le(bss_list, bi); 2825 err = brcmf_inform_single_bss(cfg, bi); 2826 if (err) 2827 break; 2828 } 2829 return err; 2830 } 2831 2832 static s32 brcmf_inform_ibss(struct brcmf_cfg80211_info *cfg, 2833 struct net_device *ndev, const u8 *bssid) 2834 { 2835 struct wiphy *wiphy = cfg_to_wiphy(cfg); 2836 struct ieee80211_channel *notify_channel; 2837 struct brcmf_bss_info_le *bi = NULL; 2838 struct ieee80211_supported_band *band; 2839 struct cfg80211_bss *bss; 2840 struct brcmu_chan ch; 2841 u8 *buf = NULL; 2842 s32 err = 0; 2843 u32 freq; 2844 u16 notify_capability; 2845 u16 notify_interval; 2846 u8 *notify_ie; 2847 size_t notify_ielen; 2848 s32 notify_signal; 2849 2850 brcmf_dbg(TRACE, "Enter\n"); 2851 2852 buf = kzalloc(WL_BSS_INFO_MAX, GFP_KERNEL); 2853 if (buf == NULL) { 2854 err = -ENOMEM; 2855 goto CleanUp; 2856 } 2857 2858 *(__le32 *)buf = cpu_to_le32(WL_BSS_INFO_MAX); 2859 2860 err = brcmf_fil_cmd_data_get(netdev_priv(ndev), BRCMF_C_GET_BSS_INFO, 2861 buf, WL_BSS_INFO_MAX); 2862 if (err) { 2863 brcmf_err("WLC_GET_BSS_INFO failed: %d\n", err); 2864 goto CleanUp; 2865 } 2866 2867 bi = (struct brcmf_bss_info_le *)(buf + 4); 2868 2869 ch.chspec = le16_to_cpu(bi->chanspec); 2870 cfg->d11inf.decchspec(&ch); 2871 2872 if (ch.band == BRCMU_CHAN_BAND_2G) 2873 band = wiphy->bands[NL80211_BAND_2GHZ]; 2874 else 2875 band = wiphy->bands[NL80211_BAND_5GHZ]; 2876 2877 freq = ieee80211_channel_to_frequency(ch.control_ch_num, band->band); 2878 cfg->channel = freq; 2879 notify_channel = ieee80211_get_channel(wiphy, freq); 2880 2881 notify_capability = le16_to_cpu(bi->capability); 2882 notify_interval = le16_to_cpu(bi->beacon_period); 2883 notify_ie = (u8 *)bi + le16_to_cpu(bi->ie_offset); 2884 notify_ielen = le32_to_cpu(bi->ie_length); 2885 notify_signal = (s16)le16_to_cpu(bi->RSSI) * 100; 2886 2887 brcmf_dbg(CONN, "channel: %d(%d)\n", ch.control_ch_num, freq); 2888 brcmf_dbg(CONN, "capability: %X\n", notify_capability); 2889 brcmf_dbg(CONN, "beacon interval: %d\n", notify_interval); 2890 brcmf_dbg(CONN, "signal: %d\n", notify_signal); 2891 2892 bss = cfg80211_inform_bss(wiphy, notify_channel, 2893 CFG80211_BSS_FTYPE_UNKNOWN, bssid, 0, 2894 notify_capability, notify_interval, 2895 notify_ie, notify_ielen, notify_signal, 2896 GFP_KERNEL); 2897 2898 if (!bss) { 2899 err = -ENOMEM; 2900 goto CleanUp; 2901 } 2902 2903 cfg80211_put_bss(wiphy, bss); 2904 2905 CleanUp: 2906 2907 kfree(buf); 2908 2909 brcmf_dbg(TRACE, "Exit\n"); 2910 2911 return err; 2912 } 2913 2914 static s32 brcmf_update_bss_info(struct brcmf_cfg80211_info *cfg, 2915 struct brcmf_if *ifp) 2916 { 2917 struct brcmf_bss_info_le *bi; 2918 const struct brcmf_tlv *tim; 2919 u16 beacon_interval; 2920 u8 dtim_period; 2921 size_t ie_len; 2922 u8 *ie; 2923 s32 err = 0; 2924 2925 brcmf_dbg(TRACE, "Enter\n"); 2926 if (brcmf_is_ibssmode(ifp->vif)) 2927 return err; 2928 2929 *(__le32 *)cfg->extra_buf = cpu_to_le32(WL_EXTRA_BUF_MAX); 2930 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BSS_INFO, 2931 cfg->extra_buf, WL_EXTRA_BUF_MAX); 2932 if (err) { 2933 brcmf_err("Could not get bss info %d\n", err); 2934 goto update_bss_info_out; 2935 } 2936 2937 bi = (struct brcmf_bss_info_le *)(cfg->extra_buf + 4); 2938 err = brcmf_inform_single_bss(cfg, bi); 2939 if (err) 2940 goto update_bss_info_out; 2941 2942 ie = ((u8 *)bi) + le16_to_cpu(bi->ie_offset); 2943 ie_len = le32_to_cpu(bi->ie_length); 2944 beacon_interval = le16_to_cpu(bi->beacon_period); 2945 2946 tim = brcmf_parse_tlvs(ie, ie_len, WLAN_EID_TIM); 2947 if (tim) 2948 dtim_period = tim->data[1]; 2949 else { 2950 /* 2951 * active scan was done so we could not get dtim 2952 * information out of probe response. 2953 * so we speficially query dtim information to dongle. 2954 */ 2955 u32 var; 2956 err = brcmf_fil_iovar_int_get(ifp, "dtim_assoc", &var); 2957 if (err) { 2958 brcmf_err("wl dtim_assoc failed (%d)\n", err); 2959 goto update_bss_info_out; 2960 } 2961 dtim_period = (u8)var; 2962 } 2963 2964 update_bss_info_out: 2965 brcmf_dbg(TRACE, "Exit"); 2966 return err; 2967 } 2968 2969 void brcmf_abort_scanning(struct brcmf_cfg80211_info *cfg) 2970 { 2971 struct escan_info *escan = &cfg->escan_info; 2972 2973 set_bit(BRCMF_SCAN_STATUS_ABORT, &cfg->scan_status); 2974 if (cfg->int_escan_map || cfg->scan_request) { 2975 escan->escan_state = WL_ESCAN_STATE_IDLE; 2976 brcmf_notify_escan_complete(cfg, escan->ifp, true, true); 2977 } 2978 clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status); 2979 clear_bit(BRCMF_SCAN_STATUS_ABORT, &cfg->scan_status); 2980 } 2981 2982 static void brcmf_cfg80211_escan_timeout_worker(struct work_struct *work) 2983 { 2984 struct brcmf_cfg80211_info *cfg = 2985 container_of(work, struct brcmf_cfg80211_info, 2986 escan_timeout_work); 2987 2988 brcmf_inform_bss(cfg); 2989 brcmf_notify_escan_complete(cfg, cfg->escan_info.ifp, true, true); 2990 } 2991 2992 static void brcmf_escan_timeout(struct timer_list *t) 2993 { 2994 struct brcmf_cfg80211_info *cfg = 2995 from_timer(cfg, t, escan_timeout); 2996 2997 if (cfg->int_escan_map || cfg->scan_request) { 2998 brcmf_err("timer expired\n"); 2999 schedule_work(&cfg->escan_timeout_work); 3000 } 3001 } 3002 3003 static s32 3004 brcmf_compare_update_same_bss(struct brcmf_cfg80211_info *cfg, 3005 struct brcmf_bss_info_le *bss, 3006 struct brcmf_bss_info_le *bss_info_le) 3007 { 3008 struct brcmu_chan ch_bss, ch_bss_info_le; 3009 3010 ch_bss.chspec = le16_to_cpu(bss->chanspec); 3011 cfg->d11inf.decchspec(&ch_bss); 3012 ch_bss_info_le.chspec = le16_to_cpu(bss_info_le->chanspec); 3013 cfg->d11inf.decchspec(&ch_bss_info_le); 3014 3015 if (!memcmp(&bss_info_le->BSSID, &bss->BSSID, ETH_ALEN) && 3016 ch_bss.band == ch_bss_info_le.band && 3017 bss_info_le->SSID_len == bss->SSID_len && 3018 !memcmp(bss_info_le->SSID, bss->SSID, bss_info_le->SSID_len)) { 3019 if ((bss->flags & BRCMF_BSS_RSSI_ON_CHANNEL) == 3020 (bss_info_le->flags & BRCMF_BSS_RSSI_ON_CHANNEL)) { 3021 s16 bss_rssi = le16_to_cpu(bss->RSSI); 3022 s16 bss_info_rssi = le16_to_cpu(bss_info_le->RSSI); 3023 3024 /* preserve max RSSI if the measurements are 3025 * both on-channel or both off-channel 3026 */ 3027 if (bss_info_rssi > bss_rssi) 3028 bss->RSSI = bss_info_le->RSSI; 3029 } else if ((bss->flags & BRCMF_BSS_RSSI_ON_CHANNEL) && 3030 (bss_info_le->flags & BRCMF_BSS_RSSI_ON_CHANNEL) == 0) { 3031 /* preserve the on-channel rssi measurement 3032 * if the new measurement is off channel 3033 */ 3034 bss->RSSI = bss_info_le->RSSI; 3035 bss->flags |= BRCMF_BSS_RSSI_ON_CHANNEL; 3036 } 3037 return 1; 3038 } 3039 return 0; 3040 } 3041 3042 static s32 3043 brcmf_cfg80211_escan_handler(struct brcmf_if *ifp, 3044 const struct brcmf_event_msg *e, void *data) 3045 { 3046 struct brcmf_cfg80211_info *cfg = ifp->drvr->config; 3047 s32 status; 3048 struct brcmf_escan_result_le *escan_result_le; 3049 u32 escan_buflen; 3050 struct brcmf_bss_info_le *bss_info_le; 3051 struct brcmf_bss_info_le *bss = NULL; 3052 u32 bi_length; 3053 struct brcmf_scan_results *list; 3054 u32 i; 3055 bool aborted; 3056 3057 status = e->status; 3058 3059 if (status == BRCMF_E_STATUS_ABORT) 3060 goto exit; 3061 3062 if (!test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) { 3063 brcmf_err("scan not ready, bsscfgidx=%d\n", ifp->bsscfgidx); 3064 return -EPERM; 3065 } 3066 3067 if (status == BRCMF_E_STATUS_PARTIAL) { 3068 brcmf_dbg(SCAN, "ESCAN Partial result\n"); 3069 if (e->datalen < sizeof(*escan_result_le)) { 3070 brcmf_err("invalid event data length\n"); 3071 goto exit; 3072 } 3073 escan_result_le = (struct brcmf_escan_result_le *) data; 3074 if (!escan_result_le) { 3075 brcmf_err("Invalid escan result (NULL pointer)\n"); 3076 goto exit; 3077 } 3078 escan_buflen = le32_to_cpu(escan_result_le->buflen); 3079 if (escan_buflen > BRCMF_ESCAN_BUF_SIZE || 3080 escan_buflen > e->datalen || 3081 escan_buflen < sizeof(*escan_result_le)) { 3082 brcmf_err("Invalid escan buffer length: %d\n", 3083 escan_buflen); 3084 goto exit; 3085 } 3086 if (le16_to_cpu(escan_result_le->bss_count) != 1) { 3087 brcmf_err("Invalid bss_count %d: ignoring\n", 3088 escan_result_le->bss_count); 3089 goto exit; 3090 } 3091 bss_info_le = &escan_result_le->bss_info_le; 3092 3093 if (brcmf_p2p_scan_finding_common_channel(cfg, bss_info_le)) 3094 goto exit; 3095 3096 if (!cfg->int_escan_map && !cfg->scan_request) { 3097 brcmf_dbg(SCAN, "result without cfg80211 request\n"); 3098 goto exit; 3099 } 3100 3101 bi_length = le32_to_cpu(bss_info_le->length); 3102 if (bi_length != escan_buflen - WL_ESCAN_RESULTS_FIXED_SIZE) { 3103 brcmf_err("Ignoring invalid bss_info length: %d\n", 3104 bi_length); 3105 goto exit; 3106 } 3107 3108 if (!(cfg_to_wiphy(cfg)->interface_modes & 3109 BIT(NL80211_IFTYPE_ADHOC))) { 3110 if (le16_to_cpu(bss_info_le->capability) & 3111 WLAN_CAPABILITY_IBSS) { 3112 brcmf_err("Ignoring IBSS result\n"); 3113 goto exit; 3114 } 3115 } 3116 3117 list = (struct brcmf_scan_results *) 3118 cfg->escan_info.escan_buf; 3119 if (bi_length > BRCMF_ESCAN_BUF_SIZE - list->buflen) { 3120 brcmf_err("Buffer is too small: ignoring\n"); 3121 goto exit; 3122 } 3123 3124 for (i = 0; i < list->count; i++) { 3125 bss = bss ? (struct brcmf_bss_info_le *) 3126 ((unsigned char *)bss + 3127 le32_to_cpu(bss->length)) : list->bss_info_le; 3128 if (brcmf_compare_update_same_bss(cfg, bss, 3129 bss_info_le)) 3130 goto exit; 3131 } 3132 memcpy(&cfg->escan_info.escan_buf[list->buflen], bss_info_le, 3133 bi_length); 3134 list->version = le32_to_cpu(bss_info_le->version); 3135 list->buflen += bi_length; 3136 list->count++; 3137 } else { 3138 cfg->escan_info.escan_state = WL_ESCAN_STATE_IDLE; 3139 if (brcmf_p2p_scan_finding_common_channel(cfg, NULL)) 3140 goto exit; 3141 if (cfg->int_escan_map || cfg->scan_request) { 3142 brcmf_inform_bss(cfg); 3143 aborted = status != BRCMF_E_STATUS_SUCCESS; 3144 brcmf_notify_escan_complete(cfg, ifp, aborted, false); 3145 } else 3146 brcmf_dbg(SCAN, "Ignored scan complete result 0x%x\n", 3147 status); 3148 } 3149 exit: 3150 return 0; 3151 } 3152 3153 static void brcmf_init_escan(struct brcmf_cfg80211_info *cfg) 3154 { 3155 brcmf_fweh_register(cfg->pub, BRCMF_E_ESCAN_RESULT, 3156 brcmf_cfg80211_escan_handler); 3157 cfg->escan_info.escan_state = WL_ESCAN_STATE_IDLE; 3158 /* Init scan_timeout timer */ 3159 timer_setup(&cfg->escan_timeout, brcmf_escan_timeout, 0); 3160 INIT_WORK(&cfg->escan_timeout_work, 3161 brcmf_cfg80211_escan_timeout_worker); 3162 } 3163 3164 static struct cfg80211_scan_request * 3165 brcmf_alloc_internal_escan_request(struct wiphy *wiphy, u32 n_netinfo) { 3166 struct cfg80211_scan_request *req; 3167 size_t req_size; 3168 3169 req_size = sizeof(*req) + 3170 n_netinfo * sizeof(req->channels[0]) + 3171 n_netinfo * sizeof(*req->ssids); 3172 3173 req = kzalloc(req_size, GFP_KERNEL); 3174 if (req) { 3175 req->wiphy = wiphy; 3176 req->ssids = (void *)(&req->channels[0]) + 3177 n_netinfo * sizeof(req->channels[0]); 3178 } 3179 return req; 3180 } 3181 3182 static int brcmf_internal_escan_add_info(struct cfg80211_scan_request *req, 3183 u8 *ssid, u8 ssid_len, u8 channel) 3184 { 3185 struct ieee80211_channel *chan; 3186 enum nl80211_band band; 3187 int freq, i; 3188 3189 if (channel <= CH_MAX_2G_CHANNEL) 3190 band = NL80211_BAND_2GHZ; 3191 else 3192 band = NL80211_BAND_5GHZ; 3193 3194 freq = ieee80211_channel_to_frequency(channel, band); 3195 if (!freq) 3196 return -EINVAL; 3197 3198 chan = ieee80211_get_channel(req->wiphy, freq); 3199 if (!chan) 3200 return -EINVAL; 3201 3202 for (i = 0; i < req->n_channels; i++) { 3203 if (req->channels[i] == chan) 3204 break; 3205 } 3206 if (i == req->n_channels) 3207 req->channels[req->n_channels++] = chan; 3208 3209 for (i = 0; i < req->n_ssids; i++) { 3210 if (req->ssids[i].ssid_len == ssid_len && 3211 !memcmp(req->ssids[i].ssid, ssid, ssid_len)) 3212 break; 3213 } 3214 if (i == req->n_ssids) { 3215 memcpy(req->ssids[req->n_ssids].ssid, ssid, ssid_len); 3216 req->ssids[req->n_ssids++].ssid_len = ssid_len; 3217 } 3218 return 0; 3219 } 3220 3221 static int brcmf_start_internal_escan(struct brcmf_if *ifp, u32 fwmap, 3222 struct cfg80211_scan_request *request) 3223 { 3224 struct brcmf_cfg80211_info *cfg = ifp->drvr->config; 3225 int err; 3226 3227 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) { 3228 if (cfg->int_escan_map) 3229 brcmf_dbg(SCAN, "aborting internal scan: map=%u\n", 3230 cfg->int_escan_map); 3231 /* Abort any on-going scan */ 3232 brcmf_abort_scanning(cfg); 3233 } 3234 3235 brcmf_dbg(SCAN, "start internal scan: map=%u\n", fwmap); 3236 set_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status); 3237 cfg->escan_info.run = brcmf_run_escan; 3238 err = brcmf_do_escan(ifp, request); 3239 if (err) { 3240 clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status); 3241 return err; 3242 } 3243 cfg->int_escan_map = fwmap; 3244 return 0; 3245 } 3246 3247 static struct brcmf_pno_net_info_le * 3248 brcmf_get_netinfo_array(struct brcmf_pno_scanresults_le *pfn_v1) 3249 { 3250 struct brcmf_pno_scanresults_v2_le *pfn_v2; 3251 struct brcmf_pno_net_info_le *netinfo; 3252 3253 switch (pfn_v1->version) { 3254 default: 3255 WARN_ON(1); 3256 /* fall-thru */ 3257 case cpu_to_le32(1): 3258 netinfo = (struct brcmf_pno_net_info_le *)(pfn_v1 + 1); 3259 break; 3260 case cpu_to_le32(2): 3261 pfn_v2 = (struct brcmf_pno_scanresults_v2_le *)pfn_v1; 3262 netinfo = (struct brcmf_pno_net_info_le *)(pfn_v2 + 1); 3263 break; 3264 } 3265 3266 return netinfo; 3267 } 3268 3269 /* PFN result doesn't have all the info which are required by the supplicant 3270 * (For e.g IEs) Do a target Escan so that sched scan results are reported 3271 * via wl_inform_single_bss in the required format. Escan does require the 3272 * scan request in the form of cfg80211_scan_request. For timebeing, create 3273 * cfg80211_scan_request one out of the received PNO event. 3274 */ 3275 static s32 3276 brcmf_notify_sched_scan_results(struct brcmf_if *ifp, 3277 const struct brcmf_event_msg *e, void *data) 3278 { 3279 struct brcmf_cfg80211_info *cfg = ifp->drvr->config; 3280 struct brcmf_pno_net_info_le *netinfo, *netinfo_start; 3281 struct cfg80211_scan_request *request = NULL; 3282 struct wiphy *wiphy = cfg_to_wiphy(cfg); 3283 int i, err = 0; 3284 struct brcmf_pno_scanresults_le *pfn_result; 3285 u32 bucket_map; 3286 u32 result_count; 3287 u32 status; 3288 u32 datalen; 3289 3290 brcmf_dbg(SCAN, "Enter\n"); 3291 3292 if (e->datalen < (sizeof(*pfn_result) + sizeof(*netinfo))) { 3293 brcmf_dbg(SCAN, "Event data to small. Ignore\n"); 3294 return 0; 3295 } 3296 3297 if (e->event_code == BRCMF_E_PFN_NET_LOST) { 3298 brcmf_dbg(SCAN, "PFN NET LOST event. Do Nothing\n"); 3299 return 0; 3300 } 3301 3302 pfn_result = (struct brcmf_pno_scanresults_le *)data; 3303 result_count = le32_to_cpu(pfn_result->count); 3304 status = le32_to_cpu(pfn_result->status); 3305 3306 /* PFN event is limited to fit 512 bytes so we may get 3307 * multiple NET_FOUND events. For now place a warning here. 3308 */ 3309 WARN_ON(status != BRCMF_PNO_SCAN_COMPLETE); 3310 brcmf_dbg(SCAN, "PFN NET FOUND event. count: %d\n", result_count); 3311 if (!result_count) { 3312 brcmf_err("FALSE PNO Event. (pfn_count == 0)\n"); 3313 goto out_err; 3314 } 3315 3316 netinfo_start = brcmf_get_netinfo_array(pfn_result); 3317 datalen = e->datalen - ((void *)netinfo_start - (void *)pfn_result); 3318 if (datalen < result_count * sizeof(*netinfo)) { 3319 brcmf_err("insufficient event data\n"); 3320 goto out_err; 3321 } 3322 3323 request = brcmf_alloc_internal_escan_request(wiphy, 3324 result_count); 3325 if (!request) { 3326 err = -ENOMEM; 3327 goto out_err; 3328 } 3329 3330 bucket_map = 0; 3331 for (i = 0; i < result_count; i++) { 3332 netinfo = &netinfo_start[i]; 3333 3334 if (netinfo->SSID_len > IEEE80211_MAX_SSID_LEN) 3335 netinfo->SSID_len = IEEE80211_MAX_SSID_LEN; 3336 brcmf_dbg(SCAN, "SSID:%.32s Channel:%d\n", 3337 netinfo->SSID, netinfo->channel); 3338 bucket_map |= brcmf_pno_get_bucket_map(cfg->pno, netinfo); 3339 err = brcmf_internal_escan_add_info(request, 3340 netinfo->SSID, 3341 netinfo->SSID_len, 3342 netinfo->channel); 3343 if (err) 3344 goto out_err; 3345 } 3346 3347 if (!bucket_map) 3348 goto free_req; 3349 3350 err = brcmf_start_internal_escan(ifp, bucket_map, request); 3351 if (!err) 3352 goto free_req; 3353 3354 out_err: 3355 cfg80211_sched_scan_stopped(wiphy, 0); 3356 free_req: 3357 kfree(request); 3358 return err; 3359 } 3360 3361 static int 3362 brcmf_cfg80211_sched_scan_start(struct wiphy *wiphy, 3363 struct net_device *ndev, 3364 struct cfg80211_sched_scan_request *req) 3365 { 3366 struct brcmf_if *ifp = netdev_priv(ndev); 3367 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 3368 3369 brcmf_dbg(SCAN, "Enter: n_match_sets=%d n_ssids=%d\n", 3370 req->n_match_sets, req->n_ssids); 3371 3372 if (test_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status)) { 3373 brcmf_err("Scanning suppressed: status=%lu\n", 3374 cfg->scan_status); 3375 return -EAGAIN; 3376 } 3377 3378 if (req->n_match_sets <= 0) { 3379 brcmf_dbg(SCAN, "invalid number of matchsets specified: %d\n", 3380 req->n_match_sets); 3381 return -EINVAL; 3382 } 3383 3384 return brcmf_pno_start_sched_scan(ifp, req); 3385 } 3386 3387 static int brcmf_cfg80211_sched_scan_stop(struct wiphy *wiphy, 3388 struct net_device *ndev, u64 reqid) 3389 { 3390 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 3391 struct brcmf_if *ifp = netdev_priv(ndev); 3392 3393 brcmf_dbg(SCAN, "enter\n"); 3394 brcmf_pno_stop_sched_scan(ifp, reqid); 3395 if (cfg->int_escan_map) 3396 brcmf_notify_escan_complete(cfg, ifp, true, true); 3397 return 0; 3398 } 3399 3400 static __always_inline void brcmf_delay(u32 ms) 3401 { 3402 if (ms < 1000 / HZ) { 3403 cond_resched(); 3404 mdelay(ms); 3405 } else { 3406 msleep(ms); 3407 } 3408 } 3409 3410 static s32 brcmf_config_wowl_pattern(struct brcmf_if *ifp, u8 cmd[4], 3411 u8 *pattern, u32 patternsize, u8 *mask, 3412 u32 packet_offset) 3413 { 3414 struct brcmf_fil_wowl_pattern_le *filter; 3415 u32 masksize; 3416 u32 patternoffset; 3417 u8 *buf; 3418 u32 bufsize; 3419 s32 ret; 3420 3421 masksize = (patternsize + 7) / 8; 3422 patternoffset = sizeof(*filter) - sizeof(filter->cmd) + masksize; 3423 3424 bufsize = sizeof(*filter) + patternsize + masksize; 3425 buf = kzalloc(bufsize, GFP_KERNEL); 3426 if (!buf) 3427 return -ENOMEM; 3428 filter = (struct brcmf_fil_wowl_pattern_le *)buf; 3429 3430 memcpy(filter->cmd, cmd, 4); 3431 filter->masksize = cpu_to_le32(masksize); 3432 filter->offset = cpu_to_le32(packet_offset); 3433 filter->patternoffset = cpu_to_le32(patternoffset); 3434 filter->patternsize = cpu_to_le32(patternsize); 3435 filter->type = cpu_to_le32(BRCMF_WOWL_PATTERN_TYPE_BITMAP); 3436 3437 if ((mask) && (masksize)) 3438 memcpy(buf + sizeof(*filter), mask, masksize); 3439 if ((pattern) && (patternsize)) 3440 memcpy(buf + sizeof(*filter) + masksize, pattern, patternsize); 3441 3442 ret = brcmf_fil_iovar_data_set(ifp, "wowl_pattern", buf, bufsize); 3443 3444 kfree(buf); 3445 return ret; 3446 } 3447 3448 static s32 3449 brcmf_wowl_nd_results(struct brcmf_if *ifp, const struct brcmf_event_msg *e, 3450 void *data) 3451 { 3452 struct brcmf_cfg80211_info *cfg = ifp->drvr->config; 3453 struct brcmf_pno_scanresults_le *pfn_result; 3454 struct brcmf_pno_net_info_le *netinfo; 3455 3456 brcmf_dbg(SCAN, "Enter\n"); 3457 3458 if (e->datalen < (sizeof(*pfn_result) + sizeof(*netinfo))) { 3459 brcmf_dbg(SCAN, "Event data to small. Ignore\n"); 3460 return 0; 3461 } 3462 3463 pfn_result = (struct brcmf_pno_scanresults_le *)data; 3464 3465 if (e->event_code == BRCMF_E_PFN_NET_LOST) { 3466 brcmf_dbg(SCAN, "PFN NET LOST event. Ignore\n"); 3467 return 0; 3468 } 3469 3470 if (le32_to_cpu(pfn_result->count) < 1) { 3471 brcmf_err("Invalid result count, expected 1 (%d)\n", 3472 le32_to_cpu(pfn_result->count)); 3473 return -EINVAL; 3474 } 3475 3476 netinfo = brcmf_get_netinfo_array(pfn_result); 3477 memcpy(cfg->wowl.nd->ssid.ssid, netinfo->SSID, netinfo->SSID_len); 3478 cfg->wowl.nd->ssid.ssid_len = netinfo->SSID_len; 3479 cfg->wowl.nd->n_channels = 1; 3480 cfg->wowl.nd->channels[0] = 3481 ieee80211_channel_to_frequency(netinfo->channel, 3482 netinfo->channel <= CH_MAX_2G_CHANNEL ? 3483 NL80211_BAND_2GHZ : NL80211_BAND_5GHZ); 3484 cfg->wowl.nd_info->n_matches = 1; 3485 cfg->wowl.nd_info->matches[0] = cfg->wowl.nd; 3486 3487 /* Inform (the resume task) that the net detect information was recvd */ 3488 cfg->wowl.nd_data_completed = true; 3489 wake_up(&cfg->wowl.nd_data_wait); 3490 3491 return 0; 3492 } 3493 3494 #ifdef CONFIG_PM 3495 3496 static void brcmf_report_wowl_wakeind(struct wiphy *wiphy, struct brcmf_if *ifp) 3497 { 3498 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 3499 struct brcmf_wowl_wakeind_le wake_ind_le; 3500 struct cfg80211_wowlan_wakeup wakeup_data; 3501 struct cfg80211_wowlan_wakeup *wakeup; 3502 u32 wakeind; 3503 s32 err; 3504 int timeout; 3505 3506 err = brcmf_fil_iovar_data_get(ifp, "wowl_wakeind", &wake_ind_le, 3507 sizeof(wake_ind_le)); 3508 if (err) { 3509 brcmf_err("Get wowl_wakeind failed, err = %d\n", err); 3510 return; 3511 } 3512 3513 wakeind = le32_to_cpu(wake_ind_le.ucode_wakeind); 3514 if (wakeind & (BRCMF_WOWL_MAGIC | BRCMF_WOWL_DIS | BRCMF_WOWL_BCN | 3515 BRCMF_WOWL_RETR | BRCMF_WOWL_NET | 3516 BRCMF_WOWL_PFN_FOUND)) { 3517 wakeup = &wakeup_data; 3518 memset(&wakeup_data, 0, sizeof(wakeup_data)); 3519 wakeup_data.pattern_idx = -1; 3520 3521 if (wakeind & BRCMF_WOWL_MAGIC) { 3522 brcmf_dbg(INFO, "WOWL Wake indicator: BRCMF_WOWL_MAGIC\n"); 3523 wakeup_data.magic_pkt = true; 3524 } 3525 if (wakeind & BRCMF_WOWL_DIS) { 3526 brcmf_dbg(INFO, "WOWL Wake indicator: BRCMF_WOWL_DIS\n"); 3527 wakeup_data.disconnect = true; 3528 } 3529 if (wakeind & BRCMF_WOWL_BCN) { 3530 brcmf_dbg(INFO, "WOWL Wake indicator: BRCMF_WOWL_BCN\n"); 3531 wakeup_data.disconnect = true; 3532 } 3533 if (wakeind & BRCMF_WOWL_RETR) { 3534 brcmf_dbg(INFO, "WOWL Wake indicator: BRCMF_WOWL_RETR\n"); 3535 wakeup_data.disconnect = true; 3536 } 3537 if (wakeind & BRCMF_WOWL_NET) { 3538 brcmf_dbg(INFO, "WOWL Wake indicator: BRCMF_WOWL_NET\n"); 3539 /* For now always map to pattern 0, no API to get 3540 * correct information available at the moment. 3541 */ 3542 wakeup_data.pattern_idx = 0; 3543 } 3544 if (wakeind & BRCMF_WOWL_PFN_FOUND) { 3545 brcmf_dbg(INFO, "WOWL Wake indicator: BRCMF_WOWL_PFN_FOUND\n"); 3546 timeout = wait_event_timeout(cfg->wowl.nd_data_wait, 3547 cfg->wowl.nd_data_completed, 3548 BRCMF_ND_INFO_TIMEOUT); 3549 if (!timeout) 3550 brcmf_err("No result for wowl net detect\n"); 3551 else 3552 wakeup_data.net_detect = cfg->wowl.nd_info; 3553 } 3554 if (wakeind & BRCMF_WOWL_GTK_FAILURE) { 3555 brcmf_dbg(INFO, "WOWL Wake indicator: BRCMF_WOWL_GTK_FAILURE\n"); 3556 wakeup_data.gtk_rekey_failure = true; 3557 } 3558 } else { 3559 wakeup = NULL; 3560 } 3561 cfg80211_report_wowlan_wakeup(&ifp->vif->wdev, wakeup, GFP_KERNEL); 3562 } 3563 3564 #else 3565 3566 static void brcmf_report_wowl_wakeind(struct wiphy *wiphy, struct brcmf_if *ifp) 3567 { 3568 } 3569 3570 #endif /* CONFIG_PM */ 3571 3572 static s32 brcmf_cfg80211_resume(struct wiphy *wiphy) 3573 { 3574 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 3575 struct net_device *ndev = cfg_to_ndev(cfg); 3576 struct brcmf_if *ifp = netdev_priv(ndev); 3577 3578 brcmf_dbg(TRACE, "Enter\n"); 3579 3580 if (cfg->wowl.active) { 3581 brcmf_report_wowl_wakeind(wiphy, ifp); 3582 brcmf_fil_iovar_int_set(ifp, "wowl_clear", 0); 3583 brcmf_config_wowl_pattern(ifp, "clr", NULL, 0, NULL, 0); 3584 if (!brcmf_feat_is_enabled(ifp, BRCMF_FEAT_WOWL_ARP_ND)) 3585 brcmf_configure_arp_nd_offload(ifp, true); 3586 brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM, 3587 cfg->wowl.pre_pmmode); 3588 cfg->wowl.active = false; 3589 if (cfg->wowl.nd_enabled) { 3590 brcmf_cfg80211_sched_scan_stop(cfg->wiphy, ifp->ndev, 0); 3591 brcmf_fweh_unregister(cfg->pub, BRCMF_E_PFN_NET_FOUND); 3592 brcmf_fweh_register(cfg->pub, BRCMF_E_PFN_NET_FOUND, 3593 brcmf_notify_sched_scan_results); 3594 cfg->wowl.nd_enabled = false; 3595 } 3596 } 3597 return 0; 3598 } 3599 3600 static void brcmf_configure_wowl(struct brcmf_cfg80211_info *cfg, 3601 struct brcmf_if *ifp, 3602 struct cfg80211_wowlan *wowl) 3603 { 3604 u32 wowl_config; 3605 struct brcmf_wowl_wakeind_le wowl_wakeind; 3606 u32 i; 3607 3608 brcmf_dbg(TRACE, "Suspend, wowl config.\n"); 3609 3610 if (!brcmf_feat_is_enabled(ifp, BRCMF_FEAT_WOWL_ARP_ND)) 3611 brcmf_configure_arp_nd_offload(ifp, false); 3612 brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_PM, &cfg->wowl.pre_pmmode); 3613 brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM, PM_MAX); 3614 3615 wowl_config = 0; 3616 if (wowl->disconnect) 3617 wowl_config = BRCMF_WOWL_DIS | BRCMF_WOWL_BCN | BRCMF_WOWL_RETR; 3618 if (wowl->magic_pkt) 3619 wowl_config |= BRCMF_WOWL_MAGIC; 3620 if ((wowl->patterns) && (wowl->n_patterns)) { 3621 wowl_config |= BRCMF_WOWL_NET; 3622 for (i = 0; i < wowl->n_patterns; i++) { 3623 brcmf_config_wowl_pattern(ifp, "add", 3624 (u8 *)wowl->patterns[i].pattern, 3625 wowl->patterns[i].pattern_len, 3626 (u8 *)wowl->patterns[i].mask, 3627 wowl->patterns[i].pkt_offset); 3628 } 3629 } 3630 if (wowl->nd_config) { 3631 brcmf_cfg80211_sched_scan_start(cfg->wiphy, ifp->ndev, 3632 wowl->nd_config); 3633 wowl_config |= BRCMF_WOWL_PFN_FOUND; 3634 3635 cfg->wowl.nd_data_completed = false; 3636 cfg->wowl.nd_enabled = true; 3637 /* Now reroute the event for PFN to the wowl function. */ 3638 brcmf_fweh_unregister(cfg->pub, BRCMF_E_PFN_NET_FOUND); 3639 brcmf_fweh_register(cfg->pub, BRCMF_E_PFN_NET_FOUND, 3640 brcmf_wowl_nd_results); 3641 } 3642 if (wowl->gtk_rekey_failure) 3643 wowl_config |= BRCMF_WOWL_GTK_FAILURE; 3644 if (!test_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state)) 3645 wowl_config |= BRCMF_WOWL_UNASSOC; 3646 3647 memcpy(&wowl_wakeind, "clear", 6); 3648 brcmf_fil_iovar_data_set(ifp, "wowl_wakeind", &wowl_wakeind, 3649 sizeof(wowl_wakeind)); 3650 brcmf_fil_iovar_int_set(ifp, "wowl", wowl_config); 3651 brcmf_fil_iovar_int_set(ifp, "wowl_activate", 1); 3652 brcmf_bus_wowl_config(cfg->pub->bus_if, true); 3653 cfg->wowl.active = true; 3654 } 3655 3656 static s32 brcmf_cfg80211_suspend(struct wiphy *wiphy, 3657 struct cfg80211_wowlan *wowl) 3658 { 3659 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 3660 struct net_device *ndev = cfg_to_ndev(cfg); 3661 struct brcmf_if *ifp = netdev_priv(ndev); 3662 struct brcmf_cfg80211_vif *vif; 3663 3664 brcmf_dbg(TRACE, "Enter\n"); 3665 3666 /* if the primary net_device is not READY there is nothing 3667 * we can do but pray resume goes smoothly. 3668 */ 3669 if (!check_vif_up(ifp->vif)) 3670 goto exit; 3671 3672 /* Stop scheduled scan */ 3673 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_PNO)) 3674 brcmf_cfg80211_sched_scan_stop(wiphy, ndev, 0); 3675 3676 /* end any scanning */ 3677 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) 3678 brcmf_abort_scanning(cfg); 3679 3680 if (wowl == NULL) { 3681 brcmf_bus_wowl_config(cfg->pub->bus_if, false); 3682 list_for_each_entry(vif, &cfg->vif_list, list) { 3683 if (!test_bit(BRCMF_VIF_STATUS_READY, &vif->sme_state)) 3684 continue; 3685 /* While going to suspend if associated with AP 3686 * disassociate from AP to save power while system is 3687 * in suspended state 3688 */ 3689 brcmf_link_down(vif, WLAN_REASON_UNSPECIFIED); 3690 /* Make sure WPA_Supplicant receives all the event 3691 * generated due to DISASSOC call to the fw to keep 3692 * the state fw and WPA_Supplicant state consistent 3693 */ 3694 brcmf_delay(500); 3695 } 3696 /* Configure MPC */ 3697 brcmf_set_mpc(ifp, 1); 3698 3699 } else { 3700 /* Configure WOWL paramaters */ 3701 brcmf_configure_wowl(cfg, ifp, wowl); 3702 } 3703 3704 exit: 3705 brcmf_dbg(TRACE, "Exit\n"); 3706 /* clear any scanning activity */ 3707 cfg->scan_status = 0; 3708 return 0; 3709 } 3710 3711 static __used s32 3712 brcmf_update_pmklist(struct brcmf_cfg80211_info *cfg, struct brcmf_if *ifp) 3713 { 3714 struct brcmf_pmk_list_le *pmk_list; 3715 int i; 3716 u32 npmk; 3717 s32 err; 3718 3719 pmk_list = &cfg->pmk_list; 3720 npmk = le32_to_cpu(pmk_list->npmk); 3721 3722 brcmf_dbg(CONN, "No of elements %d\n", npmk); 3723 for (i = 0; i < npmk; i++) 3724 brcmf_dbg(CONN, "PMK[%d]: %pM\n", i, &pmk_list->pmk[i].bssid); 3725 3726 err = brcmf_fil_iovar_data_set(ifp, "pmkid_info", pmk_list, 3727 sizeof(*pmk_list)); 3728 3729 return err; 3730 } 3731 3732 static s32 3733 brcmf_cfg80211_set_pmksa(struct wiphy *wiphy, struct net_device *ndev, 3734 struct cfg80211_pmksa *pmksa) 3735 { 3736 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 3737 struct brcmf_if *ifp = netdev_priv(ndev); 3738 struct brcmf_pmksa *pmk = &cfg->pmk_list.pmk[0]; 3739 s32 err; 3740 u32 npmk, i; 3741 3742 brcmf_dbg(TRACE, "Enter\n"); 3743 if (!check_vif_up(ifp->vif)) 3744 return -EIO; 3745 3746 npmk = le32_to_cpu(cfg->pmk_list.npmk); 3747 for (i = 0; i < npmk; i++) 3748 if (!memcmp(pmksa->bssid, pmk[i].bssid, ETH_ALEN)) 3749 break; 3750 if (i < BRCMF_MAXPMKID) { 3751 memcpy(pmk[i].bssid, pmksa->bssid, ETH_ALEN); 3752 memcpy(pmk[i].pmkid, pmksa->pmkid, WLAN_PMKID_LEN); 3753 if (i == npmk) { 3754 npmk++; 3755 cfg->pmk_list.npmk = cpu_to_le32(npmk); 3756 } 3757 } else { 3758 brcmf_err("Too many PMKSA entries cached %d\n", npmk); 3759 return -EINVAL; 3760 } 3761 3762 brcmf_dbg(CONN, "set_pmksa - PMK bssid: %pM =\n", pmk[npmk].bssid); 3763 for (i = 0; i < WLAN_PMKID_LEN; i += 4) 3764 brcmf_dbg(CONN, "%02x %02x %02x %02x\n", pmk[npmk].pmkid[i], 3765 pmk[npmk].pmkid[i + 1], pmk[npmk].pmkid[i + 2], 3766 pmk[npmk].pmkid[i + 3]); 3767 3768 err = brcmf_update_pmklist(cfg, ifp); 3769 3770 brcmf_dbg(TRACE, "Exit\n"); 3771 return err; 3772 } 3773 3774 static s32 3775 brcmf_cfg80211_del_pmksa(struct wiphy *wiphy, struct net_device *ndev, 3776 struct cfg80211_pmksa *pmksa) 3777 { 3778 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 3779 struct brcmf_if *ifp = netdev_priv(ndev); 3780 struct brcmf_pmksa *pmk = &cfg->pmk_list.pmk[0]; 3781 s32 err; 3782 u32 npmk, i; 3783 3784 brcmf_dbg(TRACE, "Enter\n"); 3785 if (!check_vif_up(ifp->vif)) 3786 return -EIO; 3787 3788 brcmf_dbg(CONN, "del_pmksa - PMK bssid = %pM\n", pmksa->bssid); 3789 3790 npmk = le32_to_cpu(cfg->pmk_list.npmk); 3791 for (i = 0; i < npmk; i++) 3792 if (!memcmp(pmksa->bssid, pmk[i].bssid, ETH_ALEN)) 3793 break; 3794 3795 if ((npmk > 0) && (i < npmk)) { 3796 for (; i < (npmk - 1); i++) { 3797 memcpy(&pmk[i].bssid, &pmk[i + 1].bssid, ETH_ALEN); 3798 memcpy(&pmk[i].pmkid, &pmk[i + 1].pmkid, 3799 WLAN_PMKID_LEN); 3800 } 3801 memset(&pmk[i], 0, sizeof(*pmk)); 3802 cfg->pmk_list.npmk = cpu_to_le32(npmk - 1); 3803 } else { 3804 brcmf_err("Cache entry not found\n"); 3805 return -EINVAL; 3806 } 3807 3808 err = brcmf_update_pmklist(cfg, ifp); 3809 3810 brcmf_dbg(TRACE, "Exit\n"); 3811 return err; 3812 3813 } 3814 3815 static s32 3816 brcmf_cfg80211_flush_pmksa(struct wiphy *wiphy, struct net_device *ndev) 3817 { 3818 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 3819 struct brcmf_if *ifp = netdev_priv(ndev); 3820 s32 err; 3821 3822 brcmf_dbg(TRACE, "Enter\n"); 3823 if (!check_vif_up(ifp->vif)) 3824 return -EIO; 3825 3826 memset(&cfg->pmk_list, 0, sizeof(cfg->pmk_list)); 3827 err = brcmf_update_pmklist(cfg, ifp); 3828 3829 brcmf_dbg(TRACE, "Exit\n"); 3830 return err; 3831 3832 } 3833 3834 static s32 brcmf_configure_opensecurity(struct brcmf_if *ifp) 3835 { 3836 s32 err; 3837 s32 wpa_val; 3838 3839 /* set auth */ 3840 err = brcmf_fil_bsscfg_int_set(ifp, "auth", 0); 3841 if (err < 0) { 3842 brcmf_err("auth error %d\n", err); 3843 return err; 3844 } 3845 /* set wsec */ 3846 err = brcmf_fil_bsscfg_int_set(ifp, "wsec", 0); 3847 if (err < 0) { 3848 brcmf_err("wsec error %d\n", err); 3849 return err; 3850 } 3851 /* set upper-layer auth */ 3852 if (brcmf_is_ibssmode(ifp->vif)) 3853 wpa_val = WPA_AUTH_NONE; 3854 else 3855 wpa_val = WPA_AUTH_DISABLED; 3856 err = brcmf_fil_bsscfg_int_set(ifp, "wpa_auth", wpa_val); 3857 if (err < 0) { 3858 brcmf_err("wpa_auth error %d\n", err); 3859 return err; 3860 } 3861 3862 return 0; 3863 } 3864 3865 static bool brcmf_valid_wpa_oui(u8 *oui, bool is_rsn_ie) 3866 { 3867 if (is_rsn_ie) 3868 return (memcmp(oui, RSN_OUI, TLV_OUI_LEN) == 0); 3869 3870 return (memcmp(oui, WPA_OUI, TLV_OUI_LEN) == 0); 3871 } 3872 3873 static s32 3874 brcmf_configure_wpaie(struct brcmf_if *ifp, 3875 const struct brcmf_vs_tlv *wpa_ie, 3876 bool is_rsn_ie) 3877 { 3878 u32 auth = 0; /* d11 open authentication */ 3879 u16 count; 3880 s32 err = 0; 3881 s32 len; 3882 u32 i; 3883 u32 wsec; 3884 u32 pval = 0; 3885 u32 gval = 0; 3886 u32 wpa_auth = 0; 3887 u32 offset; 3888 u8 *data; 3889 u16 rsn_cap; 3890 u32 wme_bss_disable; 3891 u32 mfp; 3892 3893 brcmf_dbg(TRACE, "Enter\n"); 3894 if (wpa_ie == NULL) 3895 goto exit; 3896 3897 len = wpa_ie->len + TLV_HDR_LEN; 3898 data = (u8 *)wpa_ie; 3899 offset = TLV_HDR_LEN; 3900 if (!is_rsn_ie) 3901 offset += VS_IE_FIXED_HDR_LEN; 3902 else 3903 offset += WPA_IE_VERSION_LEN; 3904 3905 /* check for multicast cipher suite */ 3906 if (offset + WPA_IE_MIN_OUI_LEN > len) { 3907 err = -EINVAL; 3908 brcmf_err("no multicast cipher suite\n"); 3909 goto exit; 3910 } 3911 3912 if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) { 3913 err = -EINVAL; 3914 brcmf_err("ivalid OUI\n"); 3915 goto exit; 3916 } 3917 offset += TLV_OUI_LEN; 3918 3919 /* pick up multicast cipher */ 3920 switch (data[offset]) { 3921 case WPA_CIPHER_NONE: 3922 gval = 0; 3923 break; 3924 case WPA_CIPHER_WEP_40: 3925 case WPA_CIPHER_WEP_104: 3926 gval = WEP_ENABLED; 3927 break; 3928 case WPA_CIPHER_TKIP: 3929 gval = TKIP_ENABLED; 3930 break; 3931 case WPA_CIPHER_AES_CCM: 3932 gval = AES_ENABLED; 3933 break; 3934 default: 3935 err = -EINVAL; 3936 brcmf_err("Invalid multi cast cipher info\n"); 3937 goto exit; 3938 } 3939 3940 offset++; 3941 /* walk thru unicast cipher list and pick up what we recognize */ 3942 count = data[offset] + (data[offset + 1] << 8); 3943 offset += WPA_IE_SUITE_COUNT_LEN; 3944 /* Check for unicast suite(s) */ 3945 if (offset + (WPA_IE_MIN_OUI_LEN * count) > len) { 3946 err = -EINVAL; 3947 brcmf_err("no unicast cipher suite\n"); 3948 goto exit; 3949 } 3950 for (i = 0; i < count; i++) { 3951 if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) { 3952 err = -EINVAL; 3953 brcmf_err("ivalid OUI\n"); 3954 goto exit; 3955 } 3956 offset += TLV_OUI_LEN; 3957 switch (data[offset]) { 3958 case WPA_CIPHER_NONE: 3959 break; 3960 case WPA_CIPHER_WEP_40: 3961 case WPA_CIPHER_WEP_104: 3962 pval |= WEP_ENABLED; 3963 break; 3964 case WPA_CIPHER_TKIP: 3965 pval |= TKIP_ENABLED; 3966 break; 3967 case WPA_CIPHER_AES_CCM: 3968 pval |= AES_ENABLED; 3969 break; 3970 default: 3971 brcmf_err("Invalid unicast security info\n"); 3972 } 3973 offset++; 3974 } 3975 /* walk thru auth management suite list and pick up what we recognize */ 3976 count = data[offset] + (data[offset + 1] << 8); 3977 offset += WPA_IE_SUITE_COUNT_LEN; 3978 /* Check for auth key management suite(s) */ 3979 if (offset + (WPA_IE_MIN_OUI_LEN * count) > len) { 3980 err = -EINVAL; 3981 brcmf_err("no auth key mgmt suite\n"); 3982 goto exit; 3983 } 3984 for (i = 0; i < count; i++) { 3985 if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) { 3986 err = -EINVAL; 3987 brcmf_err("ivalid OUI\n"); 3988 goto exit; 3989 } 3990 offset += TLV_OUI_LEN; 3991 switch (data[offset]) { 3992 case RSN_AKM_NONE: 3993 brcmf_dbg(TRACE, "RSN_AKM_NONE\n"); 3994 wpa_auth |= WPA_AUTH_NONE; 3995 break; 3996 case RSN_AKM_UNSPECIFIED: 3997 brcmf_dbg(TRACE, "RSN_AKM_UNSPECIFIED\n"); 3998 is_rsn_ie ? (wpa_auth |= WPA2_AUTH_UNSPECIFIED) : 3999 (wpa_auth |= WPA_AUTH_UNSPECIFIED); 4000 break; 4001 case RSN_AKM_PSK: 4002 brcmf_dbg(TRACE, "RSN_AKM_PSK\n"); 4003 is_rsn_ie ? (wpa_auth |= WPA2_AUTH_PSK) : 4004 (wpa_auth |= WPA_AUTH_PSK); 4005 break; 4006 case RSN_AKM_SHA256_PSK: 4007 brcmf_dbg(TRACE, "RSN_AKM_MFP_PSK\n"); 4008 wpa_auth |= WPA2_AUTH_PSK_SHA256; 4009 break; 4010 case RSN_AKM_SHA256_1X: 4011 brcmf_dbg(TRACE, "RSN_AKM_MFP_1X\n"); 4012 wpa_auth |= WPA2_AUTH_1X_SHA256; 4013 break; 4014 default: 4015 brcmf_err("Invalid key mgmt info\n"); 4016 } 4017 offset++; 4018 } 4019 4020 mfp = BRCMF_MFP_NONE; 4021 if (is_rsn_ie) { 4022 wme_bss_disable = 1; 4023 if ((offset + RSN_CAP_LEN) <= len) { 4024 rsn_cap = data[offset] + (data[offset + 1] << 8); 4025 if (rsn_cap & RSN_CAP_PTK_REPLAY_CNTR_MASK) 4026 wme_bss_disable = 0; 4027 if (rsn_cap & RSN_CAP_MFPR_MASK) { 4028 brcmf_dbg(TRACE, "MFP Required\n"); 4029 mfp = BRCMF_MFP_REQUIRED; 4030 /* Firmware only supports mfp required in 4031 * combination with WPA2_AUTH_PSK_SHA256 or 4032 * WPA2_AUTH_1X_SHA256. 4033 */ 4034 if (!(wpa_auth & (WPA2_AUTH_PSK_SHA256 | 4035 WPA2_AUTH_1X_SHA256))) { 4036 err = -EINVAL; 4037 goto exit; 4038 } 4039 /* Firmware has requirement that WPA2_AUTH_PSK/ 4040 * WPA2_AUTH_UNSPECIFIED be set, if SHA256 OUI 4041 * is to be included in the rsn ie. 4042 */ 4043 if (wpa_auth & WPA2_AUTH_PSK_SHA256) 4044 wpa_auth |= WPA2_AUTH_PSK; 4045 else if (wpa_auth & WPA2_AUTH_1X_SHA256) 4046 wpa_auth |= WPA2_AUTH_UNSPECIFIED; 4047 } else if (rsn_cap & RSN_CAP_MFPC_MASK) { 4048 brcmf_dbg(TRACE, "MFP Capable\n"); 4049 mfp = BRCMF_MFP_CAPABLE; 4050 } 4051 } 4052 offset += RSN_CAP_LEN; 4053 /* set wme_bss_disable to sync RSN Capabilities */ 4054 err = brcmf_fil_bsscfg_int_set(ifp, "wme_bss_disable", 4055 wme_bss_disable); 4056 if (err < 0) { 4057 brcmf_err("wme_bss_disable error %d\n", err); 4058 goto exit; 4059 } 4060 4061 /* Skip PMKID cnt as it is know to be 0 for AP. */ 4062 offset += RSN_PMKID_COUNT_LEN; 4063 4064 /* See if there is BIP wpa suite left for MFP */ 4065 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MFP) && 4066 ((offset + WPA_IE_MIN_OUI_LEN) <= len)) { 4067 err = brcmf_fil_bsscfg_data_set(ifp, "bip", 4068 &data[offset], 4069 WPA_IE_MIN_OUI_LEN); 4070 if (err < 0) { 4071 brcmf_err("bip error %d\n", err); 4072 goto exit; 4073 } 4074 } 4075 } 4076 /* FOR WPS , set SES_OW_ENABLED */ 4077 wsec = (pval | gval | SES_OW_ENABLED); 4078 4079 /* set auth */ 4080 err = brcmf_fil_bsscfg_int_set(ifp, "auth", auth); 4081 if (err < 0) { 4082 brcmf_err("auth error %d\n", err); 4083 goto exit; 4084 } 4085 /* set wsec */ 4086 err = brcmf_fil_bsscfg_int_set(ifp, "wsec", wsec); 4087 if (err < 0) { 4088 brcmf_err("wsec error %d\n", err); 4089 goto exit; 4090 } 4091 /* Configure MFP, this needs to go after wsec otherwise the wsec command 4092 * will overwrite the values set by MFP 4093 */ 4094 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MFP)) { 4095 err = brcmf_fil_bsscfg_int_set(ifp, "mfp", mfp); 4096 if (err < 0) { 4097 brcmf_err("mfp error %d\n", err); 4098 goto exit; 4099 } 4100 } 4101 /* set upper-layer auth */ 4102 err = brcmf_fil_bsscfg_int_set(ifp, "wpa_auth", wpa_auth); 4103 if (err < 0) { 4104 brcmf_err("wpa_auth error %d\n", err); 4105 goto exit; 4106 } 4107 4108 exit: 4109 return err; 4110 } 4111 4112 static s32 4113 brcmf_parse_vndr_ies(const u8 *vndr_ie_buf, u32 vndr_ie_len, 4114 struct parsed_vndr_ies *vndr_ies) 4115 { 4116 struct brcmf_vs_tlv *vndrie; 4117 struct brcmf_tlv *ie; 4118 struct parsed_vndr_ie_info *parsed_info; 4119 s32 remaining_len; 4120 4121 remaining_len = (s32)vndr_ie_len; 4122 memset(vndr_ies, 0, sizeof(*vndr_ies)); 4123 4124 ie = (struct brcmf_tlv *)vndr_ie_buf; 4125 while (ie) { 4126 if (ie->id != WLAN_EID_VENDOR_SPECIFIC) 4127 goto next; 4128 vndrie = (struct brcmf_vs_tlv *)ie; 4129 /* len should be bigger than OUI length + one */ 4130 if (vndrie->len < (VS_IE_FIXED_HDR_LEN - TLV_HDR_LEN + 1)) { 4131 brcmf_err("invalid vndr ie. length is too small %d\n", 4132 vndrie->len); 4133 goto next; 4134 } 4135 /* if wpa or wme ie, do not add ie */ 4136 if (!memcmp(vndrie->oui, (u8 *)WPA_OUI, TLV_OUI_LEN) && 4137 ((vndrie->oui_type == WPA_OUI_TYPE) || 4138 (vndrie->oui_type == WME_OUI_TYPE))) { 4139 brcmf_dbg(TRACE, "Found WPA/WME oui. Do not add it\n"); 4140 goto next; 4141 } 4142 4143 parsed_info = &vndr_ies->ie_info[vndr_ies->count]; 4144 4145 /* save vndr ie information */ 4146 parsed_info->ie_ptr = (char *)vndrie; 4147 parsed_info->ie_len = vndrie->len + TLV_HDR_LEN; 4148 memcpy(&parsed_info->vndrie, vndrie, sizeof(*vndrie)); 4149 4150 vndr_ies->count++; 4151 4152 brcmf_dbg(TRACE, "** OUI %02x %02x %02x, type 0x%02x\n", 4153 parsed_info->vndrie.oui[0], 4154 parsed_info->vndrie.oui[1], 4155 parsed_info->vndrie.oui[2], 4156 parsed_info->vndrie.oui_type); 4157 4158 if (vndr_ies->count >= VNDR_IE_PARSE_LIMIT) 4159 break; 4160 next: 4161 remaining_len -= (ie->len + TLV_HDR_LEN); 4162 if (remaining_len <= TLV_HDR_LEN) 4163 ie = NULL; 4164 else 4165 ie = (struct brcmf_tlv *)(((u8 *)ie) + ie->len + 4166 TLV_HDR_LEN); 4167 } 4168 return 0; 4169 } 4170 4171 static u32 4172 brcmf_vndr_ie(u8 *iebuf, s32 pktflag, u8 *ie_ptr, u32 ie_len, s8 *add_del_cmd) 4173 { 4174 4175 strncpy(iebuf, add_del_cmd, VNDR_IE_CMD_LEN - 1); 4176 iebuf[VNDR_IE_CMD_LEN - 1] = '\0'; 4177 4178 put_unaligned_le32(1, &iebuf[VNDR_IE_COUNT_OFFSET]); 4179 4180 put_unaligned_le32(pktflag, &iebuf[VNDR_IE_PKTFLAG_OFFSET]); 4181 4182 memcpy(&iebuf[VNDR_IE_VSIE_OFFSET], ie_ptr, ie_len); 4183 4184 return ie_len + VNDR_IE_HDR_SIZE; 4185 } 4186 4187 s32 brcmf_vif_set_mgmt_ie(struct brcmf_cfg80211_vif *vif, s32 pktflag, 4188 const u8 *vndr_ie_buf, u32 vndr_ie_len) 4189 { 4190 struct brcmf_if *ifp; 4191 struct vif_saved_ie *saved_ie; 4192 s32 err = 0; 4193 u8 *iovar_ie_buf; 4194 u8 *curr_ie_buf; 4195 u8 *mgmt_ie_buf = NULL; 4196 int mgmt_ie_buf_len; 4197 u32 *mgmt_ie_len; 4198 u32 del_add_ie_buf_len = 0; 4199 u32 total_ie_buf_len = 0; 4200 u32 parsed_ie_buf_len = 0; 4201 struct parsed_vndr_ies old_vndr_ies; 4202 struct parsed_vndr_ies new_vndr_ies; 4203 struct parsed_vndr_ie_info *vndrie_info; 4204 s32 i; 4205 u8 *ptr; 4206 int remained_buf_len; 4207 4208 if (!vif) 4209 return -ENODEV; 4210 ifp = vif->ifp; 4211 saved_ie = &vif->saved_ie; 4212 4213 brcmf_dbg(TRACE, "bsscfgidx %d, pktflag : 0x%02X\n", ifp->bsscfgidx, 4214 pktflag); 4215 iovar_ie_buf = kzalloc(WL_EXTRA_BUF_MAX, GFP_KERNEL); 4216 if (!iovar_ie_buf) 4217 return -ENOMEM; 4218 curr_ie_buf = iovar_ie_buf; 4219 switch (pktflag) { 4220 case BRCMF_VNDR_IE_PRBREQ_FLAG: 4221 mgmt_ie_buf = saved_ie->probe_req_ie; 4222 mgmt_ie_len = &saved_ie->probe_req_ie_len; 4223 mgmt_ie_buf_len = sizeof(saved_ie->probe_req_ie); 4224 break; 4225 case BRCMF_VNDR_IE_PRBRSP_FLAG: 4226 mgmt_ie_buf = saved_ie->probe_res_ie; 4227 mgmt_ie_len = &saved_ie->probe_res_ie_len; 4228 mgmt_ie_buf_len = sizeof(saved_ie->probe_res_ie); 4229 break; 4230 case BRCMF_VNDR_IE_BEACON_FLAG: 4231 mgmt_ie_buf = saved_ie->beacon_ie; 4232 mgmt_ie_len = &saved_ie->beacon_ie_len; 4233 mgmt_ie_buf_len = sizeof(saved_ie->beacon_ie); 4234 break; 4235 case BRCMF_VNDR_IE_ASSOCREQ_FLAG: 4236 mgmt_ie_buf = saved_ie->assoc_req_ie; 4237 mgmt_ie_len = &saved_ie->assoc_req_ie_len; 4238 mgmt_ie_buf_len = sizeof(saved_ie->assoc_req_ie); 4239 break; 4240 default: 4241 err = -EPERM; 4242 brcmf_err("not suitable type\n"); 4243 goto exit; 4244 } 4245 4246 if (vndr_ie_len > mgmt_ie_buf_len) { 4247 err = -ENOMEM; 4248 brcmf_err("extra IE size too big\n"); 4249 goto exit; 4250 } 4251 4252 /* parse and save new vndr_ie in curr_ie_buff before comparing it */ 4253 if (vndr_ie_buf && vndr_ie_len && curr_ie_buf) { 4254 ptr = curr_ie_buf; 4255 brcmf_parse_vndr_ies(vndr_ie_buf, vndr_ie_len, &new_vndr_ies); 4256 for (i = 0; i < new_vndr_ies.count; i++) { 4257 vndrie_info = &new_vndr_ies.ie_info[i]; 4258 memcpy(ptr + parsed_ie_buf_len, vndrie_info->ie_ptr, 4259 vndrie_info->ie_len); 4260 parsed_ie_buf_len += vndrie_info->ie_len; 4261 } 4262 } 4263 4264 if (mgmt_ie_buf && *mgmt_ie_len) { 4265 if (parsed_ie_buf_len && (parsed_ie_buf_len == *mgmt_ie_len) && 4266 (memcmp(mgmt_ie_buf, curr_ie_buf, 4267 parsed_ie_buf_len) == 0)) { 4268 brcmf_dbg(TRACE, "Previous mgmt IE equals to current IE\n"); 4269 goto exit; 4270 } 4271 4272 /* parse old vndr_ie */ 4273 brcmf_parse_vndr_ies(mgmt_ie_buf, *mgmt_ie_len, &old_vndr_ies); 4274 4275 /* make a command to delete old ie */ 4276 for (i = 0; i < old_vndr_ies.count; i++) { 4277 vndrie_info = &old_vndr_ies.ie_info[i]; 4278 4279 brcmf_dbg(TRACE, "DEL ID : %d, Len: %d , OUI:%02x:%02x:%02x\n", 4280 vndrie_info->vndrie.id, 4281 vndrie_info->vndrie.len, 4282 vndrie_info->vndrie.oui[0], 4283 vndrie_info->vndrie.oui[1], 4284 vndrie_info->vndrie.oui[2]); 4285 4286 del_add_ie_buf_len = brcmf_vndr_ie(curr_ie_buf, pktflag, 4287 vndrie_info->ie_ptr, 4288 vndrie_info->ie_len, 4289 "del"); 4290 curr_ie_buf += del_add_ie_buf_len; 4291 total_ie_buf_len += del_add_ie_buf_len; 4292 } 4293 } 4294 4295 *mgmt_ie_len = 0; 4296 /* Add if there is any extra IE */ 4297 if (mgmt_ie_buf && parsed_ie_buf_len) { 4298 ptr = mgmt_ie_buf; 4299 4300 remained_buf_len = mgmt_ie_buf_len; 4301 4302 /* make a command to add new ie */ 4303 for (i = 0; i < new_vndr_ies.count; i++) { 4304 vndrie_info = &new_vndr_ies.ie_info[i]; 4305 4306 /* verify remained buf size before copy data */ 4307 if (remained_buf_len < (vndrie_info->vndrie.len + 4308 VNDR_IE_VSIE_OFFSET)) { 4309 brcmf_err("no space in mgmt_ie_buf: len left %d", 4310 remained_buf_len); 4311 break; 4312 } 4313 remained_buf_len -= (vndrie_info->ie_len + 4314 VNDR_IE_VSIE_OFFSET); 4315 4316 brcmf_dbg(TRACE, "ADDED ID : %d, Len: %d, OUI:%02x:%02x:%02x\n", 4317 vndrie_info->vndrie.id, 4318 vndrie_info->vndrie.len, 4319 vndrie_info->vndrie.oui[0], 4320 vndrie_info->vndrie.oui[1], 4321 vndrie_info->vndrie.oui[2]); 4322 4323 del_add_ie_buf_len = brcmf_vndr_ie(curr_ie_buf, pktflag, 4324 vndrie_info->ie_ptr, 4325 vndrie_info->ie_len, 4326 "add"); 4327 4328 /* save the parsed IE in wl struct */ 4329 memcpy(ptr + (*mgmt_ie_len), vndrie_info->ie_ptr, 4330 vndrie_info->ie_len); 4331 *mgmt_ie_len += vndrie_info->ie_len; 4332 4333 curr_ie_buf += del_add_ie_buf_len; 4334 total_ie_buf_len += del_add_ie_buf_len; 4335 } 4336 } 4337 if (total_ie_buf_len) { 4338 err = brcmf_fil_bsscfg_data_set(ifp, "vndr_ie", iovar_ie_buf, 4339 total_ie_buf_len); 4340 if (err) 4341 brcmf_err("vndr ie set error : %d\n", err); 4342 } 4343 4344 exit: 4345 kfree(iovar_ie_buf); 4346 return err; 4347 } 4348 4349 s32 brcmf_vif_clear_mgmt_ies(struct brcmf_cfg80211_vif *vif) 4350 { 4351 s32 pktflags[] = { 4352 BRCMF_VNDR_IE_PRBREQ_FLAG, 4353 BRCMF_VNDR_IE_PRBRSP_FLAG, 4354 BRCMF_VNDR_IE_BEACON_FLAG 4355 }; 4356 int i; 4357 4358 for (i = 0; i < ARRAY_SIZE(pktflags); i++) 4359 brcmf_vif_set_mgmt_ie(vif, pktflags[i], NULL, 0); 4360 4361 memset(&vif->saved_ie, 0, sizeof(vif->saved_ie)); 4362 return 0; 4363 } 4364 4365 static s32 4366 brcmf_config_ap_mgmt_ie(struct brcmf_cfg80211_vif *vif, 4367 struct cfg80211_beacon_data *beacon) 4368 { 4369 s32 err; 4370 4371 /* Set Beacon IEs to FW */ 4372 err = brcmf_vif_set_mgmt_ie(vif, BRCMF_VNDR_IE_BEACON_FLAG, 4373 beacon->tail, beacon->tail_len); 4374 if (err) { 4375 brcmf_err("Set Beacon IE Failed\n"); 4376 return err; 4377 } 4378 brcmf_dbg(TRACE, "Applied Vndr IEs for Beacon\n"); 4379 4380 /* Set Probe Response IEs to FW */ 4381 err = brcmf_vif_set_mgmt_ie(vif, BRCMF_VNDR_IE_PRBRSP_FLAG, 4382 beacon->proberesp_ies, 4383 beacon->proberesp_ies_len); 4384 if (err) 4385 brcmf_err("Set Probe Resp IE Failed\n"); 4386 else 4387 brcmf_dbg(TRACE, "Applied Vndr IEs for Probe Resp\n"); 4388 4389 return err; 4390 } 4391 4392 static s32 4393 brcmf_cfg80211_start_ap(struct wiphy *wiphy, struct net_device *ndev, 4394 struct cfg80211_ap_settings *settings) 4395 { 4396 s32 ie_offset; 4397 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 4398 struct brcmf_if *ifp = netdev_priv(ndev); 4399 const struct brcmf_tlv *ssid_ie; 4400 const struct brcmf_tlv *country_ie; 4401 struct brcmf_ssid_le ssid_le; 4402 s32 err = -EPERM; 4403 const struct brcmf_tlv *rsn_ie; 4404 const struct brcmf_vs_tlv *wpa_ie; 4405 struct brcmf_join_params join_params; 4406 enum nl80211_iftype dev_role; 4407 struct brcmf_fil_bss_enable_le bss_enable; 4408 u16 chanspec = chandef_to_chanspec(&cfg->d11inf, &settings->chandef); 4409 bool mbss; 4410 int is_11d; 4411 bool supports_11d; 4412 4413 brcmf_dbg(TRACE, "ctrlchn=%d, center=%d, bw=%d, beacon_interval=%d, dtim_period=%d,\n", 4414 settings->chandef.chan->hw_value, 4415 settings->chandef.center_freq1, settings->chandef.width, 4416 settings->beacon_interval, settings->dtim_period); 4417 brcmf_dbg(TRACE, "ssid=%s(%zu), auth_type=%d, inactivity_timeout=%d\n", 4418 settings->ssid, settings->ssid_len, settings->auth_type, 4419 settings->inactivity_timeout); 4420 dev_role = ifp->vif->wdev.iftype; 4421 mbss = ifp->vif->mbss; 4422 4423 /* store current 11d setting */ 4424 if (brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_REGULATORY, 4425 &ifp->vif->is_11d)) { 4426 is_11d = supports_11d = false; 4427 } else { 4428 country_ie = brcmf_parse_tlvs((u8 *)settings->beacon.tail, 4429 settings->beacon.tail_len, 4430 WLAN_EID_COUNTRY); 4431 is_11d = country_ie ? 1 : 0; 4432 supports_11d = true; 4433 } 4434 4435 memset(&ssid_le, 0, sizeof(ssid_le)); 4436 if (settings->ssid == NULL || settings->ssid_len == 0) { 4437 ie_offset = DOT11_MGMT_HDR_LEN + DOT11_BCN_PRB_FIXED_LEN; 4438 ssid_ie = brcmf_parse_tlvs( 4439 (u8 *)&settings->beacon.head[ie_offset], 4440 settings->beacon.head_len - ie_offset, 4441 WLAN_EID_SSID); 4442 if (!ssid_ie || ssid_ie->len > IEEE80211_MAX_SSID_LEN) 4443 return -EINVAL; 4444 4445 memcpy(ssid_le.SSID, ssid_ie->data, ssid_ie->len); 4446 ssid_le.SSID_len = cpu_to_le32(ssid_ie->len); 4447 brcmf_dbg(TRACE, "SSID is (%s) in Head\n", ssid_le.SSID); 4448 } else { 4449 memcpy(ssid_le.SSID, settings->ssid, settings->ssid_len); 4450 ssid_le.SSID_len = cpu_to_le32((u32)settings->ssid_len); 4451 } 4452 4453 if (!mbss) { 4454 brcmf_set_mpc(ifp, 0); 4455 brcmf_configure_arp_nd_offload(ifp, false); 4456 } 4457 4458 /* find the RSN_IE */ 4459 rsn_ie = brcmf_parse_tlvs((u8 *)settings->beacon.tail, 4460 settings->beacon.tail_len, WLAN_EID_RSN); 4461 4462 /* find the WPA_IE */ 4463 wpa_ie = brcmf_find_wpaie((u8 *)settings->beacon.tail, 4464 settings->beacon.tail_len); 4465 4466 if ((wpa_ie != NULL || rsn_ie != NULL)) { 4467 brcmf_dbg(TRACE, "WPA(2) IE is found\n"); 4468 if (wpa_ie != NULL) { 4469 /* WPA IE */ 4470 err = brcmf_configure_wpaie(ifp, wpa_ie, false); 4471 if (err < 0) 4472 goto exit; 4473 } else { 4474 struct brcmf_vs_tlv *tmp_ie; 4475 4476 tmp_ie = (struct brcmf_vs_tlv *)rsn_ie; 4477 4478 /* RSN IE */ 4479 err = brcmf_configure_wpaie(ifp, tmp_ie, true); 4480 if (err < 0) 4481 goto exit; 4482 } 4483 } else { 4484 brcmf_dbg(TRACE, "No WPA(2) IEs found\n"); 4485 brcmf_configure_opensecurity(ifp); 4486 } 4487 4488 /* Parameters shared by all radio interfaces */ 4489 if (!mbss) { 4490 if ((supports_11d) && (is_11d != ifp->vif->is_11d)) { 4491 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_REGULATORY, 4492 is_11d); 4493 if (err < 0) { 4494 brcmf_err("Regulatory Set Error, %d\n", err); 4495 goto exit; 4496 } 4497 } 4498 if (settings->beacon_interval) { 4499 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_BCNPRD, 4500 settings->beacon_interval); 4501 if (err < 0) { 4502 brcmf_err("Beacon Interval Set Error, %d\n", 4503 err); 4504 goto exit; 4505 } 4506 } 4507 if (settings->dtim_period) { 4508 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_DTIMPRD, 4509 settings->dtim_period); 4510 if (err < 0) { 4511 brcmf_err("DTIM Interval Set Error, %d\n", err); 4512 goto exit; 4513 } 4514 } 4515 4516 if ((dev_role == NL80211_IFTYPE_AP) && 4517 ((ifp->ifidx == 0) || 4518 !brcmf_feat_is_enabled(ifp, BRCMF_FEAT_RSDB))) { 4519 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_DOWN, 1); 4520 if (err < 0) { 4521 brcmf_err("BRCMF_C_DOWN error %d\n", err); 4522 goto exit; 4523 } 4524 brcmf_fil_iovar_int_set(ifp, "apsta", 0); 4525 } 4526 4527 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_INFRA, 1); 4528 if (err < 0) { 4529 brcmf_err("SET INFRA error %d\n", err); 4530 goto exit; 4531 } 4532 } else if (WARN_ON(supports_11d && (is_11d != ifp->vif->is_11d))) { 4533 /* Multiple-BSS should use same 11d configuration */ 4534 err = -EINVAL; 4535 goto exit; 4536 } 4537 4538 /* Interface specific setup */ 4539 if (dev_role == NL80211_IFTYPE_AP) { 4540 if ((brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MBSS)) && (!mbss)) 4541 brcmf_fil_iovar_int_set(ifp, "mbss", 1); 4542 4543 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_AP, 1); 4544 if (err < 0) { 4545 brcmf_err("setting AP mode failed %d\n", err); 4546 goto exit; 4547 } 4548 if (!mbss) { 4549 /* Firmware 10.x requires setting channel after enabling 4550 * AP and before bringing interface up. 4551 */ 4552 err = brcmf_fil_iovar_int_set(ifp, "chanspec", chanspec); 4553 if (err < 0) { 4554 brcmf_err("Set Channel failed: chspec=%d, %d\n", 4555 chanspec, err); 4556 goto exit; 4557 } 4558 } 4559 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 1); 4560 if (err < 0) { 4561 brcmf_err("BRCMF_C_UP error (%d)\n", err); 4562 goto exit; 4563 } 4564 /* On DOWN the firmware removes the WEP keys, reconfigure 4565 * them if they were set. 4566 */ 4567 brcmf_cfg80211_reconfigure_wep(ifp); 4568 4569 memset(&join_params, 0, sizeof(join_params)); 4570 /* join parameters starts with ssid */ 4571 memcpy(&join_params.ssid_le, &ssid_le, sizeof(ssid_le)); 4572 /* create softap */ 4573 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID, 4574 &join_params, sizeof(join_params)); 4575 if (err < 0) { 4576 brcmf_err("SET SSID error (%d)\n", err); 4577 goto exit; 4578 } 4579 4580 if (settings->hidden_ssid) { 4581 err = brcmf_fil_iovar_int_set(ifp, "closednet", 1); 4582 if (err) { 4583 brcmf_err("closednet error (%d)\n", err); 4584 goto exit; 4585 } 4586 } 4587 4588 brcmf_dbg(TRACE, "AP mode configuration complete\n"); 4589 } else if (dev_role == NL80211_IFTYPE_P2P_GO) { 4590 err = brcmf_fil_iovar_int_set(ifp, "chanspec", chanspec); 4591 if (err < 0) { 4592 brcmf_err("Set Channel failed: chspec=%d, %d\n", 4593 chanspec, err); 4594 goto exit; 4595 } 4596 err = brcmf_fil_bsscfg_data_set(ifp, "ssid", &ssid_le, 4597 sizeof(ssid_le)); 4598 if (err < 0) { 4599 brcmf_err("setting ssid failed %d\n", err); 4600 goto exit; 4601 } 4602 bss_enable.bsscfgidx = cpu_to_le32(ifp->bsscfgidx); 4603 bss_enable.enable = cpu_to_le32(1); 4604 err = brcmf_fil_iovar_data_set(ifp, "bss", &bss_enable, 4605 sizeof(bss_enable)); 4606 if (err < 0) { 4607 brcmf_err("bss_enable config failed %d\n", err); 4608 goto exit; 4609 } 4610 4611 brcmf_dbg(TRACE, "GO mode configuration complete\n"); 4612 } else { 4613 WARN_ON(1); 4614 } 4615 4616 brcmf_config_ap_mgmt_ie(ifp->vif, &settings->beacon); 4617 set_bit(BRCMF_VIF_STATUS_AP_CREATED, &ifp->vif->sme_state); 4618 brcmf_net_setcarrier(ifp, true); 4619 4620 exit: 4621 if ((err) && (!mbss)) { 4622 brcmf_set_mpc(ifp, 1); 4623 brcmf_configure_arp_nd_offload(ifp, true); 4624 } 4625 return err; 4626 } 4627 4628 static int brcmf_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *ndev) 4629 { 4630 struct brcmf_if *ifp = netdev_priv(ndev); 4631 s32 err; 4632 struct brcmf_fil_bss_enable_le bss_enable; 4633 struct brcmf_join_params join_params; 4634 4635 brcmf_dbg(TRACE, "Enter\n"); 4636 4637 if (ifp->vif->wdev.iftype == NL80211_IFTYPE_AP) { 4638 /* Due to most likely deauths outstanding we sleep */ 4639 /* first to make sure they get processed by fw. */ 4640 msleep(400); 4641 4642 if (ifp->vif->mbss) { 4643 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_DOWN, 1); 4644 return err; 4645 } 4646 4647 /* First BSS doesn't get a full reset */ 4648 if (ifp->bsscfgidx == 0) 4649 brcmf_fil_iovar_int_set(ifp, "closednet", 0); 4650 4651 memset(&join_params, 0, sizeof(join_params)); 4652 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID, 4653 &join_params, sizeof(join_params)); 4654 if (err < 0) 4655 brcmf_err("SET SSID error (%d)\n", err); 4656 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_DOWN, 1); 4657 if (err < 0) 4658 brcmf_err("BRCMF_C_DOWN error %d\n", err); 4659 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_AP, 0); 4660 if (err < 0) 4661 brcmf_err("setting AP mode failed %d\n", err); 4662 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MBSS)) 4663 brcmf_fil_iovar_int_set(ifp, "mbss", 0); 4664 brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_REGULATORY, 4665 ifp->vif->is_11d); 4666 /* Bring device back up so it can be used again */ 4667 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 1); 4668 if (err < 0) 4669 brcmf_err("BRCMF_C_UP error %d\n", err); 4670 4671 brcmf_vif_clear_mgmt_ies(ifp->vif); 4672 } else { 4673 bss_enable.bsscfgidx = cpu_to_le32(ifp->bsscfgidx); 4674 bss_enable.enable = cpu_to_le32(0); 4675 err = brcmf_fil_iovar_data_set(ifp, "bss", &bss_enable, 4676 sizeof(bss_enable)); 4677 if (err < 0) 4678 brcmf_err("bss_enable config failed %d\n", err); 4679 } 4680 brcmf_set_mpc(ifp, 1); 4681 brcmf_configure_arp_nd_offload(ifp, true); 4682 clear_bit(BRCMF_VIF_STATUS_AP_CREATED, &ifp->vif->sme_state); 4683 brcmf_net_setcarrier(ifp, false); 4684 4685 return err; 4686 } 4687 4688 static s32 4689 brcmf_cfg80211_change_beacon(struct wiphy *wiphy, struct net_device *ndev, 4690 struct cfg80211_beacon_data *info) 4691 { 4692 struct brcmf_if *ifp = netdev_priv(ndev); 4693 s32 err; 4694 4695 brcmf_dbg(TRACE, "Enter\n"); 4696 4697 err = brcmf_config_ap_mgmt_ie(ifp->vif, info); 4698 4699 return err; 4700 } 4701 4702 static int 4703 brcmf_cfg80211_del_station(struct wiphy *wiphy, struct net_device *ndev, 4704 struct station_del_parameters *params) 4705 { 4706 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 4707 struct brcmf_scb_val_le scbval; 4708 struct brcmf_if *ifp = netdev_priv(ndev); 4709 s32 err; 4710 4711 if (!params->mac) 4712 return -EFAULT; 4713 4714 brcmf_dbg(TRACE, "Enter %pM\n", params->mac); 4715 4716 if (ifp->vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif) 4717 ifp = cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif->ifp; 4718 if (!check_vif_up(ifp->vif)) 4719 return -EIO; 4720 4721 memcpy(&scbval.ea, params->mac, ETH_ALEN); 4722 scbval.val = cpu_to_le32(params->reason_code); 4723 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SCB_DEAUTHENTICATE_FOR_REASON, 4724 &scbval, sizeof(scbval)); 4725 if (err) 4726 brcmf_err("SCB_DEAUTHENTICATE_FOR_REASON failed %d\n", err); 4727 4728 brcmf_dbg(TRACE, "Exit\n"); 4729 return err; 4730 } 4731 4732 static int 4733 brcmf_cfg80211_change_station(struct wiphy *wiphy, struct net_device *ndev, 4734 const u8 *mac, struct station_parameters *params) 4735 { 4736 struct brcmf_if *ifp = netdev_priv(ndev); 4737 s32 err; 4738 4739 brcmf_dbg(TRACE, "Enter, MAC %pM, mask 0x%04x set 0x%04x\n", mac, 4740 params->sta_flags_mask, params->sta_flags_set); 4741 4742 /* Ignore all 00 MAC */ 4743 if (is_zero_ether_addr(mac)) 4744 return 0; 4745 4746 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED))) 4747 return 0; 4748 4749 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED)) 4750 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SCB_AUTHORIZE, 4751 (void *)mac, ETH_ALEN); 4752 else 4753 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SCB_DEAUTHORIZE, 4754 (void *)mac, ETH_ALEN); 4755 if (err < 0) 4756 brcmf_err("Setting SCB (de-)authorize failed, %d\n", err); 4757 4758 return err; 4759 } 4760 4761 static void 4762 brcmf_cfg80211_mgmt_frame_register(struct wiphy *wiphy, 4763 struct wireless_dev *wdev, 4764 u16 frame_type, bool reg) 4765 { 4766 struct brcmf_cfg80211_vif *vif; 4767 u16 mgmt_type; 4768 4769 brcmf_dbg(TRACE, "Enter, frame_type %04x, reg=%d\n", frame_type, reg); 4770 4771 mgmt_type = (frame_type & IEEE80211_FCTL_STYPE) >> 4; 4772 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev); 4773 if (reg) 4774 vif->mgmt_rx_reg |= BIT(mgmt_type); 4775 else 4776 vif->mgmt_rx_reg &= ~BIT(mgmt_type); 4777 } 4778 4779 4780 static int 4781 brcmf_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, 4782 struct cfg80211_mgmt_tx_params *params, u64 *cookie) 4783 { 4784 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 4785 struct ieee80211_channel *chan = params->chan; 4786 const u8 *buf = params->buf; 4787 size_t len = params->len; 4788 const struct ieee80211_mgmt *mgmt; 4789 struct brcmf_cfg80211_vif *vif; 4790 s32 err = 0; 4791 s32 ie_offset; 4792 s32 ie_len; 4793 struct brcmf_fil_action_frame_le *action_frame; 4794 struct brcmf_fil_af_params_le *af_params; 4795 bool ack; 4796 s32 chan_nr; 4797 u32 freq; 4798 4799 brcmf_dbg(TRACE, "Enter\n"); 4800 4801 *cookie = 0; 4802 4803 mgmt = (const struct ieee80211_mgmt *)buf; 4804 4805 if (!ieee80211_is_mgmt(mgmt->frame_control)) { 4806 brcmf_err("Driver only allows MGMT packet type\n"); 4807 return -EPERM; 4808 } 4809 4810 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev); 4811 4812 if (ieee80211_is_probe_resp(mgmt->frame_control)) { 4813 /* Right now the only reason to get a probe response */ 4814 /* is for p2p listen response or for p2p GO from */ 4815 /* wpa_supplicant. Unfortunately the probe is send */ 4816 /* on primary ndev, while dongle wants it on the p2p */ 4817 /* vif. Since this is only reason for a probe */ 4818 /* response to be sent, the vif is taken from cfg. */ 4819 /* If ever desired to send proberesp for non p2p */ 4820 /* response then data should be checked for */ 4821 /* "DIRECT-". Note in future supplicant will take */ 4822 /* dedicated p2p wdev to do this and then this 'hack'*/ 4823 /* is not needed anymore. */ 4824 ie_offset = DOT11_MGMT_HDR_LEN + 4825 DOT11_BCN_PRB_FIXED_LEN; 4826 ie_len = len - ie_offset; 4827 if (vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif) 4828 vif = cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif; 4829 err = brcmf_vif_set_mgmt_ie(vif, 4830 BRCMF_VNDR_IE_PRBRSP_FLAG, 4831 &buf[ie_offset], 4832 ie_len); 4833 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true, 4834 GFP_KERNEL); 4835 } else if (ieee80211_is_action(mgmt->frame_control)) { 4836 if (len > BRCMF_FIL_ACTION_FRAME_SIZE + DOT11_MGMT_HDR_LEN) { 4837 brcmf_err("invalid action frame length\n"); 4838 err = -EINVAL; 4839 goto exit; 4840 } 4841 af_params = kzalloc(sizeof(*af_params), GFP_KERNEL); 4842 if (af_params == NULL) { 4843 brcmf_err("unable to allocate frame\n"); 4844 err = -ENOMEM; 4845 goto exit; 4846 } 4847 action_frame = &af_params->action_frame; 4848 /* Add the packet Id */ 4849 action_frame->packet_id = cpu_to_le32(*cookie); 4850 /* Add BSSID */ 4851 memcpy(&action_frame->da[0], &mgmt->da[0], ETH_ALEN); 4852 memcpy(&af_params->bssid[0], &mgmt->bssid[0], ETH_ALEN); 4853 /* Add the length exepted for 802.11 header */ 4854 action_frame->len = cpu_to_le16(len - DOT11_MGMT_HDR_LEN); 4855 /* Add the channel. Use the one specified as parameter if any or 4856 * the current one (got from the firmware) otherwise 4857 */ 4858 if (chan) 4859 freq = chan->center_freq; 4860 else 4861 brcmf_fil_cmd_int_get(vif->ifp, BRCMF_C_GET_CHANNEL, 4862 &freq); 4863 chan_nr = ieee80211_frequency_to_channel(freq); 4864 af_params->channel = cpu_to_le32(chan_nr); 4865 4866 memcpy(action_frame->data, &buf[DOT11_MGMT_HDR_LEN], 4867 le16_to_cpu(action_frame->len)); 4868 4869 brcmf_dbg(TRACE, "Action frame, cookie=%lld, len=%d, freq=%d\n", 4870 *cookie, le16_to_cpu(action_frame->len), freq); 4871 4872 ack = brcmf_p2p_send_action_frame(cfg, cfg_to_ndev(cfg), 4873 af_params); 4874 4875 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, ack, 4876 GFP_KERNEL); 4877 kfree(af_params); 4878 } else { 4879 brcmf_dbg(TRACE, "Unhandled, fc=%04x!!\n", mgmt->frame_control); 4880 brcmf_dbg_hex_dump(true, buf, len, "payload, len=%zu\n", len); 4881 } 4882 4883 exit: 4884 return err; 4885 } 4886 4887 4888 static int 4889 brcmf_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy, 4890 struct wireless_dev *wdev, 4891 u64 cookie) 4892 { 4893 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 4894 struct brcmf_cfg80211_vif *vif; 4895 int err = 0; 4896 4897 brcmf_dbg(TRACE, "Enter p2p listen cancel\n"); 4898 4899 vif = cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif; 4900 if (vif == NULL) { 4901 brcmf_err("No p2p device available for probe response\n"); 4902 err = -ENODEV; 4903 goto exit; 4904 } 4905 brcmf_p2p_cancel_remain_on_channel(vif->ifp); 4906 exit: 4907 return err; 4908 } 4909 4910 static int brcmf_cfg80211_get_channel(struct wiphy *wiphy, 4911 struct wireless_dev *wdev, 4912 struct cfg80211_chan_def *chandef) 4913 { 4914 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 4915 struct net_device *ndev = wdev->netdev; 4916 struct brcmf_if *ifp; 4917 struct brcmu_chan ch; 4918 enum nl80211_band band = 0; 4919 enum nl80211_chan_width width = 0; 4920 u32 chanspec; 4921 int freq, err; 4922 4923 if (!ndev) 4924 return -ENODEV; 4925 ifp = netdev_priv(ndev); 4926 4927 err = brcmf_fil_iovar_int_get(ifp, "chanspec", &chanspec); 4928 if (err) { 4929 brcmf_err("chanspec failed (%d)\n", err); 4930 return err; 4931 } 4932 4933 ch.chspec = chanspec; 4934 cfg->d11inf.decchspec(&ch); 4935 4936 switch (ch.band) { 4937 case BRCMU_CHAN_BAND_2G: 4938 band = NL80211_BAND_2GHZ; 4939 break; 4940 case BRCMU_CHAN_BAND_5G: 4941 band = NL80211_BAND_5GHZ; 4942 break; 4943 } 4944 4945 switch (ch.bw) { 4946 case BRCMU_CHAN_BW_80: 4947 width = NL80211_CHAN_WIDTH_80; 4948 break; 4949 case BRCMU_CHAN_BW_40: 4950 width = NL80211_CHAN_WIDTH_40; 4951 break; 4952 case BRCMU_CHAN_BW_20: 4953 width = NL80211_CHAN_WIDTH_20; 4954 break; 4955 case BRCMU_CHAN_BW_80P80: 4956 width = NL80211_CHAN_WIDTH_80P80; 4957 break; 4958 case BRCMU_CHAN_BW_160: 4959 width = NL80211_CHAN_WIDTH_160; 4960 break; 4961 } 4962 4963 freq = ieee80211_channel_to_frequency(ch.control_ch_num, band); 4964 chandef->chan = ieee80211_get_channel(wiphy, freq); 4965 chandef->width = width; 4966 chandef->center_freq1 = ieee80211_channel_to_frequency(ch.chnum, band); 4967 chandef->center_freq2 = 0; 4968 4969 return 0; 4970 } 4971 4972 static int brcmf_cfg80211_crit_proto_start(struct wiphy *wiphy, 4973 struct wireless_dev *wdev, 4974 enum nl80211_crit_proto_id proto, 4975 u16 duration) 4976 { 4977 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 4978 struct brcmf_cfg80211_vif *vif; 4979 4980 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev); 4981 4982 /* only DHCP support for now */ 4983 if (proto != NL80211_CRIT_PROTO_DHCP) 4984 return -EINVAL; 4985 4986 /* suppress and abort scanning */ 4987 set_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status); 4988 brcmf_abort_scanning(cfg); 4989 4990 return brcmf_btcoex_set_mode(vif, BRCMF_BTCOEX_DISABLED, duration); 4991 } 4992 4993 static void brcmf_cfg80211_crit_proto_stop(struct wiphy *wiphy, 4994 struct wireless_dev *wdev) 4995 { 4996 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 4997 struct brcmf_cfg80211_vif *vif; 4998 4999 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev); 5000 5001 brcmf_btcoex_set_mode(vif, BRCMF_BTCOEX_ENABLED, 0); 5002 clear_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status); 5003 } 5004 5005 static s32 5006 brcmf_notify_tdls_peer_event(struct brcmf_if *ifp, 5007 const struct brcmf_event_msg *e, void *data) 5008 { 5009 switch (e->reason) { 5010 case BRCMF_E_REASON_TDLS_PEER_DISCOVERED: 5011 brcmf_dbg(TRACE, "TDLS Peer Discovered\n"); 5012 break; 5013 case BRCMF_E_REASON_TDLS_PEER_CONNECTED: 5014 brcmf_dbg(TRACE, "TDLS Peer Connected\n"); 5015 brcmf_proto_add_tdls_peer(ifp->drvr, ifp->ifidx, (u8 *)e->addr); 5016 break; 5017 case BRCMF_E_REASON_TDLS_PEER_DISCONNECTED: 5018 brcmf_dbg(TRACE, "TDLS Peer Disconnected\n"); 5019 brcmf_proto_delete_peer(ifp->drvr, ifp->ifidx, (u8 *)e->addr); 5020 break; 5021 } 5022 5023 return 0; 5024 } 5025 5026 static int brcmf_convert_nl80211_tdls_oper(enum nl80211_tdls_operation oper) 5027 { 5028 int ret; 5029 5030 switch (oper) { 5031 case NL80211_TDLS_DISCOVERY_REQ: 5032 ret = BRCMF_TDLS_MANUAL_EP_DISCOVERY; 5033 break; 5034 case NL80211_TDLS_SETUP: 5035 ret = BRCMF_TDLS_MANUAL_EP_CREATE; 5036 break; 5037 case NL80211_TDLS_TEARDOWN: 5038 ret = BRCMF_TDLS_MANUAL_EP_DELETE; 5039 break; 5040 default: 5041 brcmf_err("unsupported operation: %d\n", oper); 5042 ret = -EOPNOTSUPP; 5043 } 5044 return ret; 5045 } 5046 5047 static int brcmf_cfg80211_tdls_oper(struct wiphy *wiphy, 5048 struct net_device *ndev, const u8 *peer, 5049 enum nl80211_tdls_operation oper) 5050 { 5051 struct brcmf_if *ifp; 5052 struct brcmf_tdls_iovar_le info; 5053 int ret = 0; 5054 5055 ret = brcmf_convert_nl80211_tdls_oper(oper); 5056 if (ret < 0) 5057 return ret; 5058 5059 ifp = netdev_priv(ndev); 5060 memset(&info, 0, sizeof(info)); 5061 info.mode = (u8)ret; 5062 if (peer) 5063 memcpy(info.ea, peer, ETH_ALEN); 5064 5065 ret = brcmf_fil_iovar_data_set(ifp, "tdls_endpoint", 5066 &info, sizeof(info)); 5067 if (ret < 0) 5068 brcmf_err("tdls_endpoint iovar failed: ret=%d\n", ret); 5069 5070 return ret; 5071 } 5072 5073 static int 5074 brcmf_cfg80211_update_conn_params(struct wiphy *wiphy, 5075 struct net_device *ndev, 5076 struct cfg80211_connect_params *sme, 5077 u32 changed) 5078 { 5079 struct brcmf_if *ifp; 5080 int err; 5081 5082 if (!(changed & UPDATE_ASSOC_IES)) 5083 return 0; 5084 5085 ifp = netdev_priv(ndev); 5086 err = brcmf_vif_set_mgmt_ie(ifp->vif, BRCMF_VNDR_IE_ASSOCREQ_FLAG, 5087 sme->ie, sme->ie_len); 5088 if (err) 5089 brcmf_err("Set Assoc REQ IE Failed\n"); 5090 else 5091 brcmf_dbg(TRACE, "Applied Vndr IEs for Assoc request\n"); 5092 5093 return err; 5094 } 5095 5096 #ifdef CONFIG_PM 5097 static int 5098 brcmf_cfg80211_set_rekey_data(struct wiphy *wiphy, struct net_device *ndev, 5099 struct cfg80211_gtk_rekey_data *gtk) 5100 { 5101 struct brcmf_if *ifp = netdev_priv(ndev); 5102 struct brcmf_gtk_keyinfo_le gtk_le; 5103 int ret; 5104 5105 brcmf_dbg(TRACE, "Enter, bssidx=%d\n", ifp->bsscfgidx); 5106 5107 memcpy(gtk_le.kck, gtk->kck, sizeof(gtk_le.kck)); 5108 memcpy(gtk_le.kek, gtk->kek, sizeof(gtk_le.kek)); 5109 memcpy(gtk_le.replay_counter, gtk->replay_ctr, 5110 sizeof(gtk_le.replay_counter)); 5111 5112 ret = brcmf_fil_iovar_data_set(ifp, "gtk_key_info", >k_le, 5113 sizeof(gtk_le)); 5114 if (ret < 0) 5115 brcmf_err("gtk_key_info iovar failed: ret=%d\n", ret); 5116 5117 return ret; 5118 } 5119 #endif 5120 5121 static int brcmf_cfg80211_set_pmk(struct wiphy *wiphy, struct net_device *dev, 5122 const struct cfg80211_pmk_conf *conf) 5123 { 5124 struct brcmf_if *ifp; 5125 5126 brcmf_dbg(TRACE, "enter\n"); 5127 5128 /* expect using firmware supplicant for 1X */ 5129 ifp = netdev_priv(dev); 5130 if (WARN_ON(ifp->vif->profile.use_fwsup != BRCMF_PROFILE_FWSUP_1X)) 5131 return -EINVAL; 5132 5133 if (conf->pmk_len > BRCMF_WSEC_MAX_PSK_LEN) 5134 return -ERANGE; 5135 5136 return brcmf_set_pmk(ifp, conf->pmk, conf->pmk_len); 5137 } 5138 5139 static int brcmf_cfg80211_del_pmk(struct wiphy *wiphy, struct net_device *dev, 5140 const u8 *aa) 5141 { 5142 struct brcmf_if *ifp; 5143 5144 brcmf_dbg(TRACE, "enter\n"); 5145 ifp = netdev_priv(dev); 5146 if (WARN_ON(ifp->vif->profile.use_fwsup != BRCMF_PROFILE_FWSUP_1X)) 5147 return -EINVAL; 5148 5149 return brcmf_set_pmk(ifp, NULL, 0); 5150 } 5151 5152 static struct cfg80211_ops brcmf_cfg80211_ops = { 5153 .add_virtual_intf = brcmf_cfg80211_add_iface, 5154 .del_virtual_intf = brcmf_cfg80211_del_iface, 5155 .change_virtual_intf = brcmf_cfg80211_change_iface, 5156 .scan = brcmf_cfg80211_scan, 5157 .set_wiphy_params = brcmf_cfg80211_set_wiphy_params, 5158 .join_ibss = brcmf_cfg80211_join_ibss, 5159 .leave_ibss = brcmf_cfg80211_leave_ibss, 5160 .get_station = brcmf_cfg80211_get_station, 5161 .dump_station = brcmf_cfg80211_dump_station, 5162 .set_tx_power = brcmf_cfg80211_set_tx_power, 5163 .get_tx_power = brcmf_cfg80211_get_tx_power, 5164 .add_key = brcmf_cfg80211_add_key, 5165 .del_key = brcmf_cfg80211_del_key, 5166 .get_key = brcmf_cfg80211_get_key, 5167 .set_default_key = brcmf_cfg80211_config_default_key, 5168 .set_default_mgmt_key = brcmf_cfg80211_config_default_mgmt_key, 5169 .set_power_mgmt = brcmf_cfg80211_set_power_mgmt, 5170 .connect = brcmf_cfg80211_connect, 5171 .disconnect = brcmf_cfg80211_disconnect, 5172 .suspend = brcmf_cfg80211_suspend, 5173 .resume = brcmf_cfg80211_resume, 5174 .set_pmksa = brcmf_cfg80211_set_pmksa, 5175 .del_pmksa = brcmf_cfg80211_del_pmksa, 5176 .flush_pmksa = brcmf_cfg80211_flush_pmksa, 5177 .start_ap = brcmf_cfg80211_start_ap, 5178 .stop_ap = brcmf_cfg80211_stop_ap, 5179 .change_beacon = brcmf_cfg80211_change_beacon, 5180 .del_station = brcmf_cfg80211_del_station, 5181 .change_station = brcmf_cfg80211_change_station, 5182 .sched_scan_start = brcmf_cfg80211_sched_scan_start, 5183 .sched_scan_stop = brcmf_cfg80211_sched_scan_stop, 5184 .mgmt_frame_register = brcmf_cfg80211_mgmt_frame_register, 5185 .mgmt_tx = brcmf_cfg80211_mgmt_tx, 5186 .remain_on_channel = brcmf_p2p_remain_on_channel, 5187 .cancel_remain_on_channel = brcmf_cfg80211_cancel_remain_on_channel, 5188 .get_channel = brcmf_cfg80211_get_channel, 5189 .start_p2p_device = brcmf_p2p_start_device, 5190 .stop_p2p_device = brcmf_p2p_stop_device, 5191 .crit_proto_start = brcmf_cfg80211_crit_proto_start, 5192 .crit_proto_stop = brcmf_cfg80211_crit_proto_stop, 5193 .tdls_oper = brcmf_cfg80211_tdls_oper, 5194 .update_connect_params = brcmf_cfg80211_update_conn_params, 5195 .set_pmk = brcmf_cfg80211_set_pmk, 5196 .del_pmk = brcmf_cfg80211_del_pmk, 5197 }; 5198 5199 struct cfg80211_ops *brcmf_cfg80211_get_ops(void) 5200 { 5201 return kmemdup(&brcmf_cfg80211_ops, sizeof(brcmf_cfg80211_ops), 5202 GFP_KERNEL); 5203 } 5204 5205 struct brcmf_cfg80211_vif *brcmf_alloc_vif(struct brcmf_cfg80211_info *cfg, 5206 enum nl80211_iftype type) 5207 { 5208 struct brcmf_cfg80211_vif *vif_walk; 5209 struct brcmf_cfg80211_vif *vif; 5210 bool mbss; 5211 5212 brcmf_dbg(TRACE, "allocating virtual interface (size=%zu)\n", 5213 sizeof(*vif)); 5214 vif = kzalloc(sizeof(*vif), GFP_KERNEL); 5215 if (!vif) 5216 return ERR_PTR(-ENOMEM); 5217 5218 vif->wdev.wiphy = cfg->wiphy; 5219 vif->wdev.iftype = type; 5220 5221 brcmf_init_prof(&vif->profile); 5222 5223 if (type == NL80211_IFTYPE_AP) { 5224 mbss = false; 5225 list_for_each_entry(vif_walk, &cfg->vif_list, list) { 5226 if (vif_walk->wdev.iftype == NL80211_IFTYPE_AP) { 5227 mbss = true; 5228 break; 5229 } 5230 } 5231 vif->mbss = mbss; 5232 } 5233 5234 list_add_tail(&vif->list, &cfg->vif_list); 5235 return vif; 5236 } 5237 5238 void brcmf_free_vif(struct brcmf_cfg80211_vif *vif) 5239 { 5240 list_del(&vif->list); 5241 kfree(vif); 5242 } 5243 5244 void brcmf_cfg80211_free_netdev(struct net_device *ndev) 5245 { 5246 struct brcmf_cfg80211_vif *vif; 5247 struct brcmf_if *ifp; 5248 5249 ifp = netdev_priv(ndev); 5250 vif = ifp->vif; 5251 5252 if (vif) 5253 brcmf_free_vif(vif); 5254 } 5255 5256 static bool brcmf_is_linkup(struct brcmf_cfg80211_vif *vif, 5257 const struct brcmf_event_msg *e) 5258 { 5259 u32 event = e->event_code; 5260 u32 status = e->status; 5261 5262 if (vif->profile.use_fwsup == BRCMF_PROFILE_FWSUP_PSK && 5263 event == BRCMF_E_PSK_SUP && 5264 status == BRCMF_E_STATUS_FWSUP_COMPLETED) 5265 set_bit(BRCMF_VIF_STATUS_EAP_SUCCESS, &vif->sme_state); 5266 if (event == BRCMF_E_SET_SSID && status == BRCMF_E_STATUS_SUCCESS) { 5267 brcmf_dbg(CONN, "Processing set ssid\n"); 5268 memcpy(vif->profile.bssid, e->addr, ETH_ALEN); 5269 if (vif->profile.use_fwsup != BRCMF_PROFILE_FWSUP_PSK) 5270 return true; 5271 5272 set_bit(BRCMF_VIF_STATUS_ASSOC_SUCCESS, &vif->sme_state); 5273 } 5274 5275 if (test_bit(BRCMF_VIF_STATUS_EAP_SUCCESS, &vif->sme_state) && 5276 test_bit(BRCMF_VIF_STATUS_ASSOC_SUCCESS, &vif->sme_state)) { 5277 clear_bit(BRCMF_VIF_STATUS_EAP_SUCCESS, &vif->sme_state); 5278 clear_bit(BRCMF_VIF_STATUS_ASSOC_SUCCESS, &vif->sme_state); 5279 return true; 5280 } 5281 return false; 5282 } 5283 5284 static bool brcmf_is_linkdown(const struct brcmf_event_msg *e) 5285 { 5286 u32 event = e->event_code; 5287 u16 flags = e->flags; 5288 5289 if ((event == BRCMF_E_DEAUTH) || (event == BRCMF_E_DEAUTH_IND) || 5290 (event == BRCMF_E_DISASSOC_IND) || 5291 ((event == BRCMF_E_LINK) && (!(flags & BRCMF_EVENT_MSG_LINK)))) { 5292 brcmf_dbg(CONN, "Processing link down\n"); 5293 return true; 5294 } 5295 return false; 5296 } 5297 5298 static bool brcmf_is_nonetwork(struct brcmf_cfg80211_info *cfg, 5299 const struct brcmf_event_msg *e) 5300 { 5301 u32 event = e->event_code; 5302 u32 status = e->status; 5303 5304 if (event == BRCMF_E_LINK && status == BRCMF_E_STATUS_NO_NETWORKS) { 5305 brcmf_dbg(CONN, "Processing Link %s & no network found\n", 5306 e->flags & BRCMF_EVENT_MSG_LINK ? "up" : "down"); 5307 return true; 5308 } 5309 5310 if (event == BRCMF_E_SET_SSID && status != BRCMF_E_STATUS_SUCCESS) { 5311 brcmf_dbg(CONN, "Processing connecting & no network found\n"); 5312 return true; 5313 } 5314 5315 if (event == BRCMF_E_PSK_SUP && 5316 status != BRCMF_E_STATUS_FWSUP_COMPLETED) { 5317 brcmf_dbg(CONN, "Processing failed supplicant state: %u\n", 5318 status); 5319 return true; 5320 } 5321 5322 return false; 5323 } 5324 5325 static void brcmf_clear_assoc_ies(struct brcmf_cfg80211_info *cfg) 5326 { 5327 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg); 5328 5329 kfree(conn_info->req_ie); 5330 conn_info->req_ie = NULL; 5331 conn_info->req_ie_len = 0; 5332 kfree(conn_info->resp_ie); 5333 conn_info->resp_ie = NULL; 5334 conn_info->resp_ie_len = 0; 5335 } 5336 5337 static s32 brcmf_get_assoc_ies(struct brcmf_cfg80211_info *cfg, 5338 struct brcmf_if *ifp) 5339 { 5340 struct brcmf_cfg80211_assoc_ielen_le *assoc_info; 5341 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg); 5342 u32 req_len; 5343 u32 resp_len; 5344 s32 err = 0; 5345 5346 brcmf_clear_assoc_ies(cfg); 5347 5348 err = brcmf_fil_iovar_data_get(ifp, "assoc_info", 5349 cfg->extra_buf, WL_ASSOC_INFO_MAX); 5350 if (err) { 5351 brcmf_err("could not get assoc info (%d)\n", err); 5352 return err; 5353 } 5354 assoc_info = 5355 (struct brcmf_cfg80211_assoc_ielen_le *)cfg->extra_buf; 5356 req_len = le32_to_cpu(assoc_info->req_len); 5357 resp_len = le32_to_cpu(assoc_info->resp_len); 5358 if (req_len) { 5359 err = brcmf_fil_iovar_data_get(ifp, "assoc_req_ies", 5360 cfg->extra_buf, 5361 WL_ASSOC_INFO_MAX); 5362 if (err) { 5363 brcmf_err("could not get assoc req (%d)\n", err); 5364 return err; 5365 } 5366 conn_info->req_ie_len = req_len; 5367 conn_info->req_ie = 5368 kmemdup(cfg->extra_buf, conn_info->req_ie_len, 5369 GFP_KERNEL); 5370 } else { 5371 conn_info->req_ie_len = 0; 5372 conn_info->req_ie = NULL; 5373 } 5374 if (resp_len) { 5375 err = brcmf_fil_iovar_data_get(ifp, "assoc_resp_ies", 5376 cfg->extra_buf, 5377 WL_ASSOC_INFO_MAX); 5378 if (err) { 5379 brcmf_err("could not get assoc resp (%d)\n", err); 5380 return err; 5381 } 5382 conn_info->resp_ie_len = resp_len; 5383 conn_info->resp_ie = 5384 kmemdup(cfg->extra_buf, conn_info->resp_ie_len, 5385 GFP_KERNEL); 5386 } else { 5387 conn_info->resp_ie_len = 0; 5388 conn_info->resp_ie = NULL; 5389 } 5390 brcmf_dbg(CONN, "req len (%d) resp len (%d)\n", 5391 conn_info->req_ie_len, conn_info->resp_ie_len); 5392 5393 return err; 5394 } 5395 5396 static s32 5397 brcmf_bss_roaming_done(struct brcmf_cfg80211_info *cfg, 5398 struct net_device *ndev, 5399 const struct brcmf_event_msg *e) 5400 { 5401 struct brcmf_if *ifp = netdev_priv(ndev); 5402 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile; 5403 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg); 5404 struct wiphy *wiphy = cfg_to_wiphy(cfg); 5405 struct ieee80211_channel *notify_channel = NULL; 5406 struct ieee80211_supported_band *band; 5407 struct brcmf_bss_info_le *bi; 5408 struct brcmu_chan ch; 5409 struct cfg80211_roam_info roam_info = {}; 5410 u32 freq; 5411 s32 err = 0; 5412 u8 *buf; 5413 5414 brcmf_dbg(TRACE, "Enter\n"); 5415 5416 brcmf_get_assoc_ies(cfg, ifp); 5417 memcpy(profile->bssid, e->addr, ETH_ALEN); 5418 brcmf_update_bss_info(cfg, ifp); 5419 5420 buf = kzalloc(WL_BSS_INFO_MAX, GFP_KERNEL); 5421 if (buf == NULL) { 5422 err = -ENOMEM; 5423 goto done; 5424 } 5425 5426 /* data sent to dongle has to be little endian */ 5427 *(__le32 *)buf = cpu_to_le32(WL_BSS_INFO_MAX); 5428 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BSS_INFO, 5429 buf, WL_BSS_INFO_MAX); 5430 5431 if (err) 5432 goto done; 5433 5434 bi = (struct brcmf_bss_info_le *)(buf + 4); 5435 ch.chspec = le16_to_cpu(bi->chanspec); 5436 cfg->d11inf.decchspec(&ch); 5437 5438 if (ch.band == BRCMU_CHAN_BAND_2G) 5439 band = wiphy->bands[NL80211_BAND_2GHZ]; 5440 else 5441 band = wiphy->bands[NL80211_BAND_5GHZ]; 5442 5443 freq = ieee80211_channel_to_frequency(ch.control_ch_num, band->band); 5444 notify_channel = ieee80211_get_channel(wiphy, freq); 5445 5446 done: 5447 kfree(buf); 5448 5449 roam_info.channel = notify_channel; 5450 roam_info.bssid = profile->bssid; 5451 roam_info.req_ie = conn_info->req_ie; 5452 roam_info.req_ie_len = conn_info->req_ie_len; 5453 roam_info.resp_ie = conn_info->resp_ie; 5454 roam_info.resp_ie_len = conn_info->resp_ie_len; 5455 5456 cfg80211_roamed(ndev, &roam_info, GFP_KERNEL); 5457 brcmf_dbg(CONN, "Report roaming result\n"); 5458 5459 set_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state); 5460 brcmf_dbg(TRACE, "Exit\n"); 5461 return err; 5462 } 5463 5464 static s32 5465 brcmf_bss_connect_done(struct brcmf_cfg80211_info *cfg, 5466 struct net_device *ndev, const struct brcmf_event_msg *e, 5467 bool completed) 5468 { 5469 struct brcmf_if *ifp = netdev_priv(ndev); 5470 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile; 5471 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg); 5472 struct cfg80211_connect_resp_params conn_params; 5473 5474 brcmf_dbg(TRACE, "Enter\n"); 5475 5476 if (test_and_clear_bit(BRCMF_VIF_STATUS_CONNECTING, 5477 &ifp->vif->sme_state)) { 5478 memset(&conn_params, 0, sizeof(conn_params)); 5479 if (completed) { 5480 brcmf_get_assoc_ies(cfg, ifp); 5481 brcmf_update_bss_info(cfg, ifp); 5482 set_bit(BRCMF_VIF_STATUS_CONNECTED, 5483 &ifp->vif->sme_state); 5484 conn_params.status = WLAN_STATUS_SUCCESS; 5485 } else { 5486 conn_params.status = WLAN_STATUS_AUTH_TIMEOUT; 5487 } 5488 conn_params.bssid = profile->bssid; 5489 conn_params.req_ie = conn_info->req_ie; 5490 conn_params.req_ie_len = conn_info->req_ie_len; 5491 conn_params.resp_ie = conn_info->resp_ie; 5492 conn_params.resp_ie_len = conn_info->resp_ie_len; 5493 cfg80211_connect_done(ndev, &conn_params, GFP_KERNEL); 5494 brcmf_dbg(CONN, "Report connect result - connection %s\n", 5495 completed ? "succeeded" : "failed"); 5496 } 5497 brcmf_dbg(TRACE, "Exit\n"); 5498 return 0; 5499 } 5500 5501 static s32 5502 brcmf_notify_connect_status_ap(struct brcmf_cfg80211_info *cfg, 5503 struct net_device *ndev, 5504 const struct brcmf_event_msg *e, void *data) 5505 { 5506 static int generation; 5507 u32 event = e->event_code; 5508 u32 reason = e->reason; 5509 struct station_info *sinfo; 5510 5511 brcmf_dbg(CONN, "event %s (%u), reason %d\n", 5512 brcmf_fweh_event_name(event), event, reason); 5513 if (event == BRCMF_E_LINK && reason == BRCMF_E_REASON_LINK_BSSCFG_DIS && 5514 ndev != cfg_to_ndev(cfg)) { 5515 brcmf_dbg(CONN, "AP mode link down\n"); 5516 complete(&cfg->vif_disabled); 5517 return 0; 5518 } 5519 5520 if (((event == BRCMF_E_ASSOC_IND) || (event == BRCMF_E_REASSOC_IND)) && 5521 (reason == BRCMF_E_STATUS_SUCCESS)) { 5522 if (!data) { 5523 brcmf_err("No IEs present in ASSOC/REASSOC_IND"); 5524 return -EINVAL; 5525 } 5526 5527 sinfo = kzalloc(sizeof(*sinfo), GFP_KERNEL); 5528 if (!sinfo) 5529 return -ENOMEM; 5530 5531 sinfo->assoc_req_ies = data; 5532 sinfo->assoc_req_ies_len = e->datalen; 5533 generation++; 5534 sinfo->generation = generation; 5535 cfg80211_new_sta(ndev, e->addr, sinfo, GFP_KERNEL); 5536 5537 kfree(sinfo); 5538 } else if ((event == BRCMF_E_DISASSOC_IND) || 5539 (event == BRCMF_E_DEAUTH_IND) || 5540 (event == BRCMF_E_DEAUTH)) { 5541 cfg80211_del_sta(ndev, e->addr, GFP_KERNEL); 5542 } 5543 return 0; 5544 } 5545 5546 static s32 5547 brcmf_notify_connect_status(struct brcmf_if *ifp, 5548 const struct brcmf_event_msg *e, void *data) 5549 { 5550 struct brcmf_cfg80211_info *cfg = ifp->drvr->config; 5551 struct net_device *ndev = ifp->ndev; 5552 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile; 5553 struct ieee80211_channel *chan; 5554 s32 err = 0; 5555 5556 if ((e->event_code == BRCMF_E_DEAUTH) || 5557 (e->event_code == BRCMF_E_DEAUTH_IND) || 5558 (e->event_code == BRCMF_E_DISASSOC_IND) || 5559 ((e->event_code == BRCMF_E_LINK) && (!e->flags))) { 5560 brcmf_proto_delete_peer(ifp->drvr, ifp->ifidx, (u8 *)e->addr); 5561 } 5562 5563 if (brcmf_is_apmode(ifp->vif)) { 5564 err = brcmf_notify_connect_status_ap(cfg, ndev, e, data); 5565 } else if (brcmf_is_linkup(ifp->vif, e)) { 5566 brcmf_dbg(CONN, "Linkup\n"); 5567 if (brcmf_is_ibssmode(ifp->vif)) { 5568 brcmf_inform_ibss(cfg, ndev, e->addr); 5569 chan = ieee80211_get_channel(cfg->wiphy, cfg->channel); 5570 memcpy(profile->bssid, e->addr, ETH_ALEN); 5571 cfg80211_ibss_joined(ndev, e->addr, chan, GFP_KERNEL); 5572 clear_bit(BRCMF_VIF_STATUS_CONNECTING, 5573 &ifp->vif->sme_state); 5574 set_bit(BRCMF_VIF_STATUS_CONNECTED, 5575 &ifp->vif->sme_state); 5576 } else 5577 brcmf_bss_connect_done(cfg, ndev, e, true); 5578 brcmf_net_setcarrier(ifp, true); 5579 } else if (brcmf_is_linkdown(e)) { 5580 brcmf_dbg(CONN, "Linkdown\n"); 5581 if (!brcmf_is_ibssmode(ifp->vif)) { 5582 brcmf_bss_connect_done(cfg, ndev, e, false); 5583 brcmf_link_down(ifp->vif, 5584 brcmf_map_fw_linkdown_reason(e)); 5585 brcmf_init_prof(ndev_to_prof(ndev)); 5586 if (ndev != cfg_to_ndev(cfg)) 5587 complete(&cfg->vif_disabled); 5588 brcmf_net_setcarrier(ifp, false); 5589 } 5590 } else if (brcmf_is_nonetwork(cfg, e)) { 5591 if (brcmf_is_ibssmode(ifp->vif)) 5592 clear_bit(BRCMF_VIF_STATUS_CONNECTING, 5593 &ifp->vif->sme_state); 5594 else 5595 brcmf_bss_connect_done(cfg, ndev, e, false); 5596 } 5597 5598 return err; 5599 } 5600 5601 static s32 5602 brcmf_notify_roaming_status(struct brcmf_if *ifp, 5603 const struct brcmf_event_msg *e, void *data) 5604 { 5605 struct brcmf_cfg80211_info *cfg = ifp->drvr->config; 5606 u32 event = e->event_code; 5607 u32 status = e->status; 5608 5609 if (event == BRCMF_E_ROAM && status == BRCMF_E_STATUS_SUCCESS) { 5610 if (test_bit(BRCMF_VIF_STATUS_CONNECTED, 5611 &ifp->vif->sme_state)) { 5612 brcmf_bss_roaming_done(cfg, ifp->ndev, e); 5613 } else { 5614 brcmf_bss_connect_done(cfg, ifp->ndev, e, true); 5615 brcmf_net_setcarrier(ifp, true); 5616 } 5617 } 5618 5619 return 0; 5620 } 5621 5622 static s32 5623 brcmf_notify_mic_status(struct brcmf_if *ifp, 5624 const struct brcmf_event_msg *e, void *data) 5625 { 5626 u16 flags = e->flags; 5627 enum nl80211_key_type key_type; 5628 5629 if (flags & BRCMF_EVENT_MSG_GROUP) 5630 key_type = NL80211_KEYTYPE_GROUP; 5631 else 5632 key_type = NL80211_KEYTYPE_PAIRWISE; 5633 5634 cfg80211_michael_mic_failure(ifp->ndev, (u8 *)&e->addr, key_type, -1, 5635 NULL, GFP_KERNEL); 5636 5637 return 0; 5638 } 5639 5640 static s32 brcmf_notify_vif_event(struct brcmf_if *ifp, 5641 const struct brcmf_event_msg *e, void *data) 5642 { 5643 struct brcmf_cfg80211_info *cfg = ifp->drvr->config; 5644 struct brcmf_if_event *ifevent = (struct brcmf_if_event *)data; 5645 struct brcmf_cfg80211_vif_event *event = &cfg->vif_event; 5646 struct brcmf_cfg80211_vif *vif; 5647 5648 brcmf_dbg(TRACE, "Enter: action %u flags %u ifidx %u bsscfgidx %u\n", 5649 ifevent->action, ifevent->flags, ifevent->ifidx, 5650 ifevent->bsscfgidx); 5651 5652 spin_lock(&event->vif_event_lock); 5653 event->action = ifevent->action; 5654 vif = event->vif; 5655 5656 switch (ifevent->action) { 5657 case BRCMF_E_IF_ADD: 5658 /* waiting process may have timed out */ 5659 if (!cfg->vif_event.vif) { 5660 spin_unlock(&event->vif_event_lock); 5661 return -EBADF; 5662 } 5663 5664 ifp->vif = vif; 5665 vif->ifp = ifp; 5666 if (ifp->ndev) { 5667 vif->wdev.netdev = ifp->ndev; 5668 ifp->ndev->ieee80211_ptr = &vif->wdev; 5669 SET_NETDEV_DEV(ifp->ndev, wiphy_dev(cfg->wiphy)); 5670 } 5671 spin_unlock(&event->vif_event_lock); 5672 wake_up(&event->vif_wq); 5673 return 0; 5674 5675 case BRCMF_E_IF_DEL: 5676 spin_unlock(&event->vif_event_lock); 5677 /* event may not be upon user request */ 5678 if (brcmf_cfg80211_vif_event_armed(cfg)) 5679 wake_up(&event->vif_wq); 5680 return 0; 5681 5682 case BRCMF_E_IF_CHANGE: 5683 spin_unlock(&event->vif_event_lock); 5684 wake_up(&event->vif_wq); 5685 return 0; 5686 5687 default: 5688 spin_unlock(&event->vif_event_lock); 5689 break; 5690 } 5691 return -EINVAL; 5692 } 5693 5694 static void brcmf_init_conf(struct brcmf_cfg80211_conf *conf) 5695 { 5696 conf->frag_threshold = (u32)-1; 5697 conf->rts_threshold = (u32)-1; 5698 conf->retry_short = (u32)-1; 5699 conf->retry_long = (u32)-1; 5700 } 5701 5702 static void brcmf_register_event_handlers(struct brcmf_cfg80211_info *cfg) 5703 { 5704 brcmf_fweh_register(cfg->pub, BRCMF_E_LINK, 5705 brcmf_notify_connect_status); 5706 brcmf_fweh_register(cfg->pub, BRCMF_E_DEAUTH_IND, 5707 brcmf_notify_connect_status); 5708 brcmf_fweh_register(cfg->pub, BRCMF_E_DEAUTH, 5709 brcmf_notify_connect_status); 5710 brcmf_fweh_register(cfg->pub, BRCMF_E_DISASSOC_IND, 5711 brcmf_notify_connect_status); 5712 brcmf_fweh_register(cfg->pub, BRCMF_E_ASSOC_IND, 5713 brcmf_notify_connect_status); 5714 brcmf_fweh_register(cfg->pub, BRCMF_E_REASSOC_IND, 5715 brcmf_notify_connect_status); 5716 brcmf_fweh_register(cfg->pub, BRCMF_E_ROAM, 5717 brcmf_notify_roaming_status); 5718 brcmf_fweh_register(cfg->pub, BRCMF_E_MIC_ERROR, 5719 brcmf_notify_mic_status); 5720 brcmf_fweh_register(cfg->pub, BRCMF_E_SET_SSID, 5721 brcmf_notify_connect_status); 5722 brcmf_fweh_register(cfg->pub, BRCMF_E_PFN_NET_FOUND, 5723 brcmf_notify_sched_scan_results); 5724 brcmf_fweh_register(cfg->pub, BRCMF_E_IF, 5725 brcmf_notify_vif_event); 5726 brcmf_fweh_register(cfg->pub, BRCMF_E_P2P_PROBEREQ_MSG, 5727 brcmf_p2p_notify_rx_mgmt_p2p_probereq); 5728 brcmf_fweh_register(cfg->pub, BRCMF_E_P2P_DISC_LISTEN_COMPLETE, 5729 brcmf_p2p_notify_listen_complete); 5730 brcmf_fweh_register(cfg->pub, BRCMF_E_ACTION_FRAME_RX, 5731 brcmf_p2p_notify_action_frame_rx); 5732 brcmf_fweh_register(cfg->pub, BRCMF_E_ACTION_FRAME_COMPLETE, 5733 brcmf_p2p_notify_action_tx_complete); 5734 brcmf_fweh_register(cfg->pub, BRCMF_E_ACTION_FRAME_OFF_CHAN_COMPLETE, 5735 brcmf_p2p_notify_action_tx_complete); 5736 brcmf_fweh_register(cfg->pub, BRCMF_E_PSK_SUP, 5737 brcmf_notify_connect_status); 5738 } 5739 5740 static void brcmf_deinit_priv_mem(struct brcmf_cfg80211_info *cfg) 5741 { 5742 kfree(cfg->conf); 5743 cfg->conf = NULL; 5744 kfree(cfg->extra_buf); 5745 cfg->extra_buf = NULL; 5746 kfree(cfg->wowl.nd); 5747 cfg->wowl.nd = NULL; 5748 kfree(cfg->wowl.nd_info); 5749 cfg->wowl.nd_info = NULL; 5750 kfree(cfg->escan_info.escan_buf); 5751 cfg->escan_info.escan_buf = NULL; 5752 } 5753 5754 static s32 brcmf_init_priv_mem(struct brcmf_cfg80211_info *cfg) 5755 { 5756 cfg->conf = kzalloc(sizeof(*cfg->conf), GFP_KERNEL); 5757 if (!cfg->conf) 5758 goto init_priv_mem_out; 5759 cfg->extra_buf = kzalloc(WL_EXTRA_BUF_MAX, GFP_KERNEL); 5760 if (!cfg->extra_buf) 5761 goto init_priv_mem_out; 5762 cfg->wowl.nd = kzalloc(sizeof(*cfg->wowl.nd) + sizeof(u32), GFP_KERNEL); 5763 if (!cfg->wowl.nd) 5764 goto init_priv_mem_out; 5765 cfg->wowl.nd_info = kzalloc(sizeof(*cfg->wowl.nd_info) + 5766 sizeof(struct cfg80211_wowlan_nd_match *), 5767 GFP_KERNEL); 5768 if (!cfg->wowl.nd_info) 5769 goto init_priv_mem_out; 5770 cfg->escan_info.escan_buf = kzalloc(BRCMF_ESCAN_BUF_SIZE, GFP_KERNEL); 5771 if (!cfg->escan_info.escan_buf) 5772 goto init_priv_mem_out; 5773 5774 return 0; 5775 5776 init_priv_mem_out: 5777 brcmf_deinit_priv_mem(cfg); 5778 5779 return -ENOMEM; 5780 } 5781 5782 static s32 wl_init_priv(struct brcmf_cfg80211_info *cfg) 5783 { 5784 s32 err = 0; 5785 5786 cfg->scan_request = NULL; 5787 cfg->pwr_save = true; 5788 cfg->dongle_up = false; /* dongle is not up yet */ 5789 err = brcmf_init_priv_mem(cfg); 5790 if (err) 5791 return err; 5792 brcmf_register_event_handlers(cfg); 5793 mutex_init(&cfg->usr_sync); 5794 brcmf_init_escan(cfg); 5795 brcmf_init_conf(cfg->conf); 5796 init_completion(&cfg->vif_disabled); 5797 return err; 5798 } 5799 5800 static void wl_deinit_priv(struct brcmf_cfg80211_info *cfg) 5801 { 5802 cfg->dongle_up = false; /* dongle down */ 5803 brcmf_abort_scanning(cfg); 5804 brcmf_deinit_priv_mem(cfg); 5805 } 5806 5807 static void init_vif_event(struct brcmf_cfg80211_vif_event *event) 5808 { 5809 init_waitqueue_head(&event->vif_wq); 5810 spin_lock_init(&event->vif_event_lock); 5811 } 5812 5813 static s32 brcmf_dongle_roam(struct brcmf_if *ifp) 5814 { 5815 s32 err; 5816 u32 bcn_timeout; 5817 __le32 roamtrigger[2]; 5818 __le32 roam_delta[2]; 5819 5820 /* Configure beacon timeout value based upon roaming setting */ 5821 if (ifp->drvr->settings->roamoff) 5822 bcn_timeout = BRCMF_DEFAULT_BCN_TIMEOUT_ROAM_OFF; 5823 else 5824 bcn_timeout = BRCMF_DEFAULT_BCN_TIMEOUT_ROAM_ON; 5825 err = brcmf_fil_iovar_int_set(ifp, "bcn_timeout", bcn_timeout); 5826 if (err) { 5827 brcmf_err("bcn_timeout error (%d)\n", err); 5828 goto roam_setup_done; 5829 } 5830 5831 /* Enable/Disable built-in roaming to allow supplicant to take care of 5832 * roaming. 5833 */ 5834 brcmf_dbg(INFO, "Internal Roaming = %s\n", 5835 ifp->drvr->settings->roamoff ? "Off" : "On"); 5836 err = brcmf_fil_iovar_int_set(ifp, "roam_off", 5837 ifp->drvr->settings->roamoff); 5838 if (err) { 5839 brcmf_err("roam_off error (%d)\n", err); 5840 goto roam_setup_done; 5841 } 5842 5843 roamtrigger[0] = cpu_to_le32(WL_ROAM_TRIGGER_LEVEL); 5844 roamtrigger[1] = cpu_to_le32(BRCM_BAND_ALL); 5845 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_ROAM_TRIGGER, 5846 (void *)roamtrigger, sizeof(roamtrigger)); 5847 if (err) { 5848 brcmf_err("WLC_SET_ROAM_TRIGGER error (%d)\n", err); 5849 goto roam_setup_done; 5850 } 5851 5852 roam_delta[0] = cpu_to_le32(WL_ROAM_DELTA); 5853 roam_delta[1] = cpu_to_le32(BRCM_BAND_ALL); 5854 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_ROAM_DELTA, 5855 (void *)roam_delta, sizeof(roam_delta)); 5856 if (err) { 5857 brcmf_err("WLC_SET_ROAM_DELTA error (%d)\n", err); 5858 goto roam_setup_done; 5859 } 5860 5861 roam_setup_done: 5862 return err; 5863 } 5864 5865 static s32 5866 brcmf_dongle_scantime(struct brcmf_if *ifp) 5867 { 5868 s32 err = 0; 5869 5870 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_CHANNEL_TIME, 5871 BRCMF_SCAN_CHANNEL_TIME); 5872 if (err) { 5873 brcmf_err("Scan assoc time error (%d)\n", err); 5874 goto dongle_scantime_out; 5875 } 5876 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_UNASSOC_TIME, 5877 BRCMF_SCAN_UNASSOC_TIME); 5878 if (err) { 5879 brcmf_err("Scan unassoc time error (%d)\n", err); 5880 goto dongle_scantime_out; 5881 } 5882 5883 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_PASSIVE_TIME, 5884 BRCMF_SCAN_PASSIVE_TIME); 5885 if (err) { 5886 brcmf_err("Scan passive time error (%d)\n", err); 5887 goto dongle_scantime_out; 5888 } 5889 5890 dongle_scantime_out: 5891 return err; 5892 } 5893 5894 static void brcmf_update_bw40_channel_flag(struct ieee80211_channel *channel, 5895 struct brcmu_chan *ch) 5896 { 5897 u32 ht40_flag; 5898 5899 ht40_flag = channel->flags & IEEE80211_CHAN_NO_HT40; 5900 if (ch->sb == BRCMU_CHAN_SB_U) { 5901 if (ht40_flag == IEEE80211_CHAN_NO_HT40) 5902 channel->flags &= ~IEEE80211_CHAN_NO_HT40; 5903 channel->flags |= IEEE80211_CHAN_NO_HT40PLUS; 5904 } else { 5905 /* It should be one of 5906 * IEEE80211_CHAN_NO_HT40 or 5907 * IEEE80211_CHAN_NO_HT40PLUS 5908 */ 5909 channel->flags &= ~IEEE80211_CHAN_NO_HT40; 5910 if (ht40_flag == IEEE80211_CHAN_NO_HT40) 5911 channel->flags |= IEEE80211_CHAN_NO_HT40MINUS; 5912 } 5913 } 5914 5915 static int brcmf_construct_chaninfo(struct brcmf_cfg80211_info *cfg, 5916 u32 bw_cap[]) 5917 { 5918 struct brcmf_if *ifp = brcmf_get_ifp(cfg->pub, 0); 5919 struct ieee80211_supported_band *band; 5920 struct ieee80211_channel *channel; 5921 struct wiphy *wiphy; 5922 struct brcmf_chanspec_list *list; 5923 struct brcmu_chan ch; 5924 int err; 5925 u8 *pbuf; 5926 u32 i, j; 5927 u32 total; 5928 u32 chaninfo; 5929 5930 pbuf = kzalloc(BRCMF_DCMD_MEDLEN, GFP_KERNEL); 5931 5932 if (pbuf == NULL) 5933 return -ENOMEM; 5934 5935 list = (struct brcmf_chanspec_list *)pbuf; 5936 5937 err = brcmf_fil_iovar_data_get(ifp, "chanspecs", pbuf, 5938 BRCMF_DCMD_MEDLEN); 5939 if (err) { 5940 brcmf_err("get chanspecs error (%d)\n", err); 5941 goto fail_pbuf; 5942 } 5943 5944 wiphy = cfg_to_wiphy(cfg); 5945 band = wiphy->bands[NL80211_BAND_2GHZ]; 5946 if (band) 5947 for (i = 0; i < band->n_channels; i++) 5948 band->channels[i].flags = IEEE80211_CHAN_DISABLED; 5949 band = wiphy->bands[NL80211_BAND_5GHZ]; 5950 if (band) 5951 for (i = 0; i < band->n_channels; i++) 5952 band->channels[i].flags = IEEE80211_CHAN_DISABLED; 5953 5954 total = le32_to_cpu(list->count); 5955 for (i = 0; i < total; i++) { 5956 ch.chspec = (u16)le32_to_cpu(list->element[i]); 5957 cfg->d11inf.decchspec(&ch); 5958 5959 if (ch.band == BRCMU_CHAN_BAND_2G) { 5960 band = wiphy->bands[NL80211_BAND_2GHZ]; 5961 } else if (ch.band == BRCMU_CHAN_BAND_5G) { 5962 band = wiphy->bands[NL80211_BAND_5GHZ]; 5963 } else { 5964 brcmf_err("Invalid channel Spec. 0x%x.\n", ch.chspec); 5965 continue; 5966 } 5967 if (!band) 5968 continue; 5969 if (!(bw_cap[band->band] & WLC_BW_40MHZ_BIT) && 5970 ch.bw == BRCMU_CHAN_BW_40) 5971 continue; 5972 if (!(bw_cap[band->band] & WLC_BW_80MHZ_BIT) && 5973 ch.bw == BRCMU_CHAN_BW_80) 5974 continue; 5975 5976 channel = NULL; 5977 for (j = 0; j < band->n_channels; j++) { 5978 if (band->channels[j].hw_value == ch.control_ch_num) { 5979 channel = &band->channels[j]; 5980 break; 5981 } 5982 } 5983 if (!channel) { 5984 /* It seems firmware supports some channel we never 5985 * considered. Something new in IEEE standard? 5986 */ 5987 brcmf_err("Ignoring unexpected firmware channel %d\n", 5988 ch.control_ch_num); 5989 continue; 5990 } 5991 5992 if (channel->orig_flags & IEEE80211_CHAN_DISABLED) 5993 continue; 5994 5995 /* assuming the chanspecs order is HT20, 5996 * HT40 upper, HT40 lower, and VHT80. 5997 */ 5998 if (ch.bw == BRCMU_CHAN_BW_80) { 5999 channel->flags &= ~IEEE80211_CHAN_NO_80MHZ; 6000 } else if (ch.bw == BRCMU_CHAN_BW_40) { 6001 brcmf_update_bw40_channel_flag(channel, &ch); 6002 } else { 6003 /* enable the channel and disable other bandwidths 6004 * for now as mentioned order assure they are enabled 6005 * for subsequent chanspecs. 6006 */ 6007 channel->flags = IEEE80211_CHAN_NO_HT40 | 6008 IEEE80211_CHAN_NO_80MHZ; 6009 ch.bw = BRCMU_CHAN_BW_20; 6010 cfg->d11inf.encchspec(&ch); 6011 chaninfo = ch.chspec; 6012 err = brcmf_fil_bsscfg_int_get(ifp, "per_chan_info", 6013 &chaninfo); 6014 if (!err) { 6015 if (chaninfo & WL_CHAN_RADAR) 6016 channel->flags |= 6017 (IEEE80211_CHAN_RADAR | 6018 IEEE80211_CHAN_NO_IR); 6019 if (chaninfo & WL_CHAN_PASSIVE) 6020 channel->flags |= 6021 IEEE80211_CHAN_NO_IR; 6022 } 6023 } 6024 } 6025 6026 fail_pbuf: 6027 kfree(pbuf); 6028 return err; 6029 } 6030 6031 static int brcmf_enable_bw40_2g(struct brcmf_cfg80211_info *cfg) 6032 { 6033 struct brcmf_if *ifp = brcmf_get_ifp(cfg->pub, 0); 6034 struct ieee80211_supported_band *band; 6035 struct brcmf_fil_bwcap_le band_bwcap; 6036 struct brcmf_chanspec_list *list; 6037 u8 *pbuf; 6038 u32 val; 6039 int err; 6040 struct brcmu_chan ch; 6041 u32 num_chan; 6042 int i, j; 6043 6044 /* verify support for bw_cap command */ 6045 val = WLC_BAND_5G; 6046 err = brcmf_fil_iovar_int_get(ifp, "bw_cap", &val); 6047 6048 if (!err) { 6049 /* only set 2G bandwidth using bw_cap command */ 6050 band_bwcap.band = cpu_to_le32(WLC_BAND_2G); 6051 band_bwcap.bw_cap = cpu_to_le32(WLC_BW_CAP_40MHZ); 6052 err = brcmf_fil_iovar_data_set(ifp, "bw_cap", &band_bwcap, 6053 sizeof(band_bwcap)); 6054 } else { 6055 brcmf_dbg(INFO, "fallback to mimo_bw_cap\n"); 6056 val = WLC_N_BW_40ALL; 6057 err = brcmf_fil_iovar_int_set(ifp, "mimo_bw_cap", val); 6058 } 6059 6060 if (!err) { 6061 /* update channel info in 2G band */ 6062 pbuf = kzalloc(BRCMF_DCMD_MEDLEN, GFP_KERNEL); 6063 6064 if (pbuf == NULL) 6065 return -ENOMEM; 6066 6067 ch.band = BRCMU_CHAN_BAND_2G; 6068 ch.bw = BRCMU_CHAN_BW_40; 6069 ch.sb = BRCMU_CHAN_SB_NONE; 6070 ch.chnum = 0; 6071 cfg->d11inf.encchspec(&ch); 6072 6073 /* pass encoded chanspec in query */ 6074 *(__le16 *)pbuf = cpu_to_le16(ch.chspec); 6075 6076 err = brcmf_fil_iovar_data_get(ifp, "chanspecs", pbuf, 6077 BRCMF_DCMD_MEDLEN); 6078 if (err) { 6079 brcmf_err("get chanspecs error (%d)\n", err); 6080 kfree(pbuf); 6081 return err; 6082 } 6083 6084 band = cfg_to_wiphy(cfg)->bands[NL80211_BAND_2GHZ]; 6085 list = (struct brcmf_chanspec_list *)pbuf; 6086 num_chan = le32_to_cpu(list->count); 6087 for (i = 0; i < num_chan; i++) { 6088 ch.chspec = (u16)le32_to_cpu(list->element[i]); 6089 cfg->d11inf.decchspec(&ch); 6090 if (WARN_ON(ch.band != BRCMU_CHAN_BAND_2G)) 6091 continue; 6092 if (WARN_ON(ch.bw != BRCMU_CHAN_BW_40)) 6093 continue; 6094 for (j = 0; j < band->n_channels; j++) { 6095 if (band->channels[j].hw_value == ch.control_ch_num) 6096 break; 6097 } 6098 if (WARN_ON(j == band->n_channels)) 6099 continue; 6100 6101 brcmf_update_bw40_channel_flag(&band->channels[j], &ch); 6102 } 6103 kfree(pbuf); 6104 } 6105 return err; 6106 } 6107 6108 static void brcmf_get_bwcap(struct brcmf_if *ifp, u32 bw_cap[]) 6109 { 6110 u32 band, mimo_bwcap; 6111 int err; 6112 6113 band = WLC_BAND_2G; 6114 err = brcmf_fil_iovar_int_get(ifp, "bw_cap", &band); 6115 if (!err) { 6116 bw_cap[NL80211_BAND_2GHZ] = band; 6117 band = WLC_BAND_5G; 6118 err = brcmf_fil_iovar_int_get(ifp, "bw_cap", &band); 6119 if (!err) { 6120 bw_cap[NL80211_BAND_5GHZ] = band; 6121 return; 6122 } 6123 WARN_ON(1); 6124 return; 6125 } 6126 brcmf_dbg(INFO, "fallback to mimo_bw_cap info\n"); 6127 mimo_bwcap = 0; 6128 err = brcmf_fil_iovar_int_get(ifp, "mimo_bw_cap", &mimo_bwcap); 6129 if (err) 6130 /* assume 20MHz if firmware does not give a clue */ 6131 mimo_bwcap = WLC_N_BW_20ALL; 6132 6133 switch (mimo_bwcap) { 6134 case WLC_N_BW_40ALL: 6135 bw_cap[NL80211_BAND_2GHZ] |= WLC_BW_40MHZ_BIT; 6136 /* fall-thru */ 6137 case WLC_N_BW_20IN2G_40IN5G: 6138 bw_cap[NL80211_BAND_5GHZ] |= WLC_BW_40MHZ_BIT; 6139 /* fall-thru */ 6140 case WLC_N_BW_20ALL: 6141 bw_cap[NL80211_BAND_2GHZ] |= WLC_BW_20MHZ_BIT; 6142 bw_cap[NL80211_BAND_5GHZ] |= WLC_BW_20MHZ_BIT; 6143 break; 6144 default: 6145 brcmf_err("invalid mimo_bw_cap value\n"); 6146 } 6147 } 6148 6149 static void brcmf_update_ht_cap(struct ieee80211_supported_band *band, 6150 u32 bw_cap[2], u32 nchain) 6151 { 6152 band->ht_cap.ht_supported = true; 6153 if (bw_cap[band->band] & WLC_BW_40MHZ_BIT) { 6154 band->ht_cap.cap |= IEEE80211_HT_CAP_SGI_40; 6155 band->ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; 6156 } 6157 band->ht_cap.cap |= IEEE80211_HT_CAP_SGI_20; 6158 band->ht_cap.cap |= IEEE80211_HT_CAP_DSSSCCK40; 6159 band->ht_cap.ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K; 6160 band->ht_cap.ampdu_density = IEEE80211_HT_MPDU_DENSITY_16; 6161 memset(band->ht_cap.mcs.rx_mask, 0xff, nchain); 6162 band->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED; 6163 } 6164 6165 static __le16 brcmf_get_mcs_map(u32 nchain, enum ieee80211_vht_mcs_support supp) 6166 { 6167 u16 mcs_map; 6168 int i; 6169 6170 for (i = 0, mcs_map = 0xFFFF; i < nchain; i++) 6171 mcs_map = (mcs_map << 2) | supp; 6172 6173 return cpu_to_le16(mcs_map); 6174 } 6175 6176 static void brcmf_update_vht_cap(struct ieee80211_supported_band *band, 6177 u32 bw_cap[2], u32 nchain, u32 txstreams, 6178 u32 txbf_bfe_cap, u32 txbf_bfr_cap) 6179 { 6180 __le16 mcs_map; 6181 6182 /* not allowed in 2.4G band */ 6183 if (band->band == NL80211_BAND_2GHZ) 6184 return; 6185 6186 band->vht_cap.vht_supported = true; 6187 /* 80MHz is mandatory */ 6188 band->vht_cap.cap |= IEEE80211_VHT_CAP_SHORT_GI_80; 6189 if (bw_cap[band->band] & WLC_BW_160MHZ_BIT) { 6190 band->vht_cap.cap |= IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ; 6191 band->vht_cap.cap |= IEEE80211_VHT_CAP_SHORT_GI_160; 6192 } 6193 /* all support 256-QAM */ 6194 mcs_map = brcmf_get_mcs_map(nchain, IEEE80211_VHT_MCS_SUPPORT_0_9); 6195 band->vht_cap.vht_mcs.rx_mcs_map = mcs_map; 6196 band->vht_cap.vht_mcs.tx_mcs_map = mcs_map; 6197 6198 /* Beamforming support information */ 6199 if (txbf_bfe_cap & BRCMF_TXBF_SU_BFE_CAP) 6200 band->vht_cap.cap |= IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE; 6201 if (txbf_bfe_cap & BRCMF_TXBF_MU_BFE_CAP) 6202 band->vht_cap.cap |= IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE; 6203 if (txbf_bfr_cap & BRCMF_TXBF_SU_BFR_CAP) 6204 band->vht_cap.cap |= IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE; 6205 if (txbf_bfr_cap & BRCMF_TXBF_MU_BFR_CAP) 6206 band->vht_cap.cap |= IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE; 6207 6208 if ((txbf_bfe_cap || txbf_bfr_cap) && (txstreams > 1)) { 6209 band->vht_cap.cap |= 6210 (2 << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT); 6211 band->vht_cap.cap |= ((txstreams - 1) << 6212 IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT); 6213 band->vht_cap.cap |= 6214 IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB; 6215 } 6216 } 6217 6218 static int brcmf_setup_wiphybands(struct brcmf_cfg80211_info *cfg) 6219 { 6220 struct brcmf_if *ifp = brcmf_get_ifp(cfg->pub, 0); 6221 struct wiphy *wiphy; 6222 u32 nmode = 0; 6223 u32 vhtmode = 0; 6224 u32 bw_cap[2] = { WLC_BW_20MHZ_BIT, WLC_BW_20MHZ_BIT }; 6225 u32 rxchain; 6226 u32 nchain; 6227 int err; 6228 s32 i; 6229 struct ieee80211_supported_band *band; 6230 u32 txstreams = 0; 6231 u32 txbf_bfe_cap = 0; 6232 u32 txbf_bfr_cap = 0; 6233 6234 (void)brcmf_fil_iovar_int_get(ifp, "vhtmode", &vhtmode); 6235 err = brcmf_fil_iovar_int_get(ifp, "nmode", &nmode); 6236 if (err) { 6237 brcmf_err("nmode error (%d)\n", err); 6238 } else { 6239 brcmf_get_bwcap(ifp, bw_cap); 6240 } 6241 brcmf_dbg(INFO, "nmode=%d, vhtmode=%d, bw_cap=(%d, %d)\n", 6242 nmode, vhtmode, bw_cap[NL80211_BAND_2GHZ], 6243 bw_cap[NL80211_BAND_5GHZ]); 6244 6245 err = brcmf_fil_iovar_int_get(ifp, "rxchain", &rxchain); 6246 if (err) { 6247 brcmf_err("rxchain error (%d)\n", err); 6248 nchain = 1; 6249 } else { 6250 for (nchain = 0; rxchain; nchain++) 6251 rxchain = rxchain & (rxchain - 1); 6252 } 6253 brcmf_dbg(INFO, "nchain=%d\n", nchain); 6254 6255 err = brcmf_construct_chaninfo(cfg, bw_cap); 6256 if (err) { 6257 brcmf_err("brcmf_construct_chaninfo failed (%d)\n", err); 6258 return err; 6259 } 6260 6261 if (vhtmode) { 6262 (void)brcmf_fil_iovar_int_get(ifp, "txstreams", &txstreams); 6263 (void)brcmf_fil_iovar_int_get(ifp, "txbf_bfe_cap", 6264 &txbf_bfe_cap); 6265 (void)brcmf_fil_iovar_int_get(ifp, "txbf_bfr_cap", 6266 &txbf_bfr_cap); 6267 } 6268 6269 wiphy = cfg_to_wiphy(cfg); 6270 for (i = 0; i < ARRAY_SIZE(wiphy->bands); i++) { 6271 band = wiphy->bands[i]; 6272 if (band == NULL) 6273 continue; 6274 6275 if (nmode) 6276 brcmf_update_ht_cap(band, bw_cap, nchain); 6277 if (vhtmode) 6278 brcmf_update_vht_cap(band, bw_cap, nchain, txstreams, 6279 txbf_bfe_cap, txbf_bfr_cap); 6280 } 6281 6282 return 0; 6283 } 6284 6285 static const struct ieee80211_txrx_stypes 6286 brcmf_txrx_stypes[NUM_NL80211_IFTYPES] = { 6287 [NL80211_IFTYPE_STATION] = { 6288 .tx = 0xffff, 6289 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 6290 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) 6291 }, 6292 [NL80211_IFTYPE_P2P_CLIENT] = { 6293 .tx = 0xffff, 6294 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 6295 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) 6296 }, 6297 [NL80211_IFTYPE_P2P_GO] = { 6298 .tx = 0xffff, 6299 .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) | 6300 BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | 6301 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | 6302 BIT(IEEE80211_STYPE_DISASSOC >> 4) | 6303 BIT(IEEE80211_STYPE_AUTH >> 4) | 6304 BIT(IEEE80211_STYPE_DEAUTH >> 4) | 6305 BIT(IEEE80211_STYPE_ACTION >> 4) 6306 }, 6307 [NL80211_IFTYPE_P2P_DEVICE] = { 6308 .tx = 0xffff, 6309 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 6310 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) 6311 } 6312 }; 6313 6314 /** 6315 * brcmf_setup_ifmodes() - determine interface modes and combinations. 6316 * 6317 * @wiphy: wiphy object. 6318 * @ifp: interface object needed for feat module api. 6319 * 6320 * The interface modes and combinations are determined dynamically here 6321 * based on firmware functionality. 6322 * 6323 * no p2p and no mbss: 6324 * 6325 * #STA <= 1, #AP <= 1, channels = 1, 2 total 6326 * 6327 * no p2p and mbss: 6328 * 6329 * #STA <= 1, #AP <= 1, channels = 1, 2 total 6330 * #AP <= 4, matching BI, channels = 1, 4 total 6331 * 6332 * p2p, no mchan, and mbss: 6333 * 6334 * #STA <= 1, #P2P-DEV <= 1, #{P2P-CL, P2P-GO} <= 1, channels = 1, 3 total 6335 * #STA <= 1, #P2P-DEV <= 1, #AP <= 1, #P2P-CL <= 1, channels = 1, 4 total 6336 * #AP <= 4, matching BI, channels = 1, 4 total 6337 * 6338 * p2p, mchan, and mbss: 6339 * 6340 * #STA <= 1, #P2P-DEV <= 1, #{P2P-CL, P2P-GO} <= 1, channels = 2, 3 total 6341 * #STA <= 1, #P2P-DEV <= 1, #AP <= 1, #P2P-CL <= 1, channels = 1, 4 total 6342 * #AP <= 4, matching BI, channels = 1, 4 total 6343 */ 6344 static int brcmf_setup_ifmodes(struct wiphy *wiphy, struct brcmf_if *ifp) 6345 { 6346 struct ieee80211_iface_combination *combo = NULL; 6347 struct ieee80211_iface_limit *c0_limits = NULL; 6348 struct ieee80211_iface_limit *p2p_limits = NULL; 6349 struct ieee80211_iface_limit *mbss_limits = NULL; 6350 bool mbss, p2p; 6351 int i, c, n_combos; 6352 6353 mbss = brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MBSS); 6354 p2p = brcmf_feat_is_enabled(ifp, BRCMF_FEAT_P2P); 6355 6356 n_combos = 1 + !!p2p + !!mbss; 6357 combo = kcalloc(n_combos, sizeof(*combo), GFP_KERNEL); 6358 if (!combo) 6359 goto err; 6360 6361 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 6362 BIT(NL80211_IFTYPE_ADHOC) | 6363 BIT(NL80211_IFTYPE_AP); 6364 6365 c = 0; 6366 i = 0; 6367 c0_limits = kcalloc(p2p ? 3 : 2, sizeof(*c0_limits), GFP_KERNEL); 6368 if (!c0_limits) 6369 goto err; 6370 c0_limits[i].max = 1; 6371 c0_limits[i++].types = BIT(NL80211_IFTYPE_STATION); 6372 if (p2p) { 6373 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MCHAN)) 6374 combo[c].num_different_channels = 2; 6375 else 6376 combo[c].num_different_channels = 1; 6377 wiphy->interface_modes |= BIT(NL80211_IFTYPE_P2P_CLIENT) | 6378 BIT(NL80211_IFTYPE_P2P_GO) | 6379 BIT(NL80211_IFTYPE_P2P_DEVICE); 6380 c0_limits[i].max = 1; 6381 c0_limits[i++].types = BIT(NL80211_IFTYPE_P2P_DEVICE); 6382 c0_limits[i].max = 1; 6383 c0_limits[i++].types = BIT(NL80211_IFTYPE_P2P_CLIENT) | 6384 BIT(NL80211_IFTYPE_P2P_GO); 6385 } else { 6386 combo[c].num_different_channels = 1; 6387 c0_limits[i].max = 1; 6388 c0_limits[i++].types = BIT(NL80211_IFTYPE_AP); 6389 } 6390 combo[c].max_interfaces = i; 6391 combo[c].n_limits = i; 6392 combo[c].limits = c0_limits; 6393 6394 if (p2p) { 6395 c++; 6396 i = 0; 6397 p2p_limits = kcalloc(4, sizeof(*p2p_limits), GFP_KERNEL); 6398 if (!p2p_limits) 6399 goto err; 6400 p2p_limits[i].max = 1; 6401 p2p_limits[i++].types = BIT(NL80211_IFTYPE_STATION); 6402 p2p_limits[i].max = 1; 6403 p2p_limits[i++].types = BIT(NL80211_IFTYPE_AP); 6404 p2p_limits[i].max = 1; 6405 p2p_limits[i++].types = BIT(NL80211_IFTYPE_P2P_CLIENT); 6406 p2p_limits[i].max = 1; 6407 p2p_limits[i++].types = BIT(NL80211_IFTYPE_P2P_DEVICE); 6408 combo[c].num_different_channels = 1; 6409 combo[c].max_interfaces = i; 6410 combo[c].n_limits = i; 6411 combo[c].limits = p2p_limits; 6412 } 6413 6414 if (mbss) { 6415 c++; 6416 i = 0; 6417 mbss_limits = kcalloc(1, sizeof(*mbss_limits), GFP_KERNEL); 6418 if (!mbss_limits) 6419 goto err; 6420 mbss_limits[i].max = 4; 6421 mbss_limits[i++].types = BIT(NL80211_IFTYPE_AP); 6422 combo[c].beacon_int_infra_match = true; 6423 combo[c].num_different_channels = 1; 6424 combo[c].max_interfaces = 4; 6425 combo[c].n_limits = i; 6426 combo[c].limits = mbss_limits; 6427 } 6428 6429 wiphy->n_iface_combinations = n_combos; 6430 wiphy->iface_combinations = combo; 6431 return 0; 6432 6433 err: 6434 kfree(c0_limits); 6435 kfree(p2p_limits); 6436 kfree(mbss_limits); 6437 kfree(combo); 6438 return -ENOMEM; 6439 } 6440 6441 #ifdef CONFIG_PM 6442 static const struct wiphy_wowlan_support brcmf_wowlan_support = { 6443 .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT, 6444 .n_patterns = BRCMF_WOWL_MAXPATTERNS, 6445 .pattern_max_len = BRCMF_WOWL_MAXPATTERNSIZE, 6446 .pattern_min_len = 1, 6447 .max_pkt_offset = 1500, 6448 }; 6449 #endif 6450 6451 static void brcmf_wiphy_wowl_params(struct wiphy *wiphy, struct brcmf_if *ifp) 6452 { 6453 #ifdef CONFIG_PM 6454 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 6455 struct wiphy_wowlan_support *wowl; 6456 6457 wowl = kmemdup(&brcmf_wowlan_support, sizeof(brcmf_wowlan_support), 6458 GFP_KERNEL); 6459 if (!wowl) { 6460 brcmf_err("only support basic wowlan features\n"); 6461 wiphy->wowlan = &brcmf_wowlan_support; 6462 return; 6463 } 6464 6465 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_PNO)) { 6466 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_WOWL_ND)) { 6467 wowl->flags |= WIPHY_WOWLAN_NET_DETECT; 6468 wowl->max_nd_match_sets = BRCMF_PNO_MAX_PFN_COUNT; 6469 init_waitqueue_head(&cfg->wowl.nd_data_wait); 6470 } 6471 } 6472 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_WOWL_GTK)) { 6473 wowl->flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY; 6474 wowl->flags |= WIPHY_WOWLAN_GTK_REKEY_FAILURE; 6475 } 6476 6477 wiphy->wowlan = wowl; 6478 #endif 6479 } 6480 6481 static int brcmf_setup_wiphy(struct wiphy *wiphy, struct brcmf_if *ifp) 6482 { 6483 struct brcmf_pub *drvr = ifp->drvr; 6484 const struct ieee80211_iface_combination *combo; 6485 struct ieee80211_supported_band *band; 6486 u16 max_interfaces = 0; 6487 bool gscan; 6488 __le32 bandlist[3]; 6489 u32 n_bands; 6490 int err, i; 6491 6492 wiphy->max_scan_ssids = WL_NUM_SCAN_MAX; 6493 wiphy->max_scan_ie_len = BRCMF_SCAN_IE_LEN_MAX; 6494 wiphy->max_num_pmkids = BRCMF_MAXPMKID; 6495 6496 err = brcmf_setup_ifmodes(wiphy, ifp); 6497 if (err) 6498 return err; 6499 6500 for (i = 0, combo = wiphy->iface_combinations; 6501 i < wiphy->n_iface_combinations; i++, combo++) { 6502 max_interfaces = max(max_interfaces, combo->max_interfaces); 6503 } 6504 6505 for (i = 0; i < max_interfaces && i < ARRAY_SIZE(drvr->addresses); 6506 i++) { 6507 u8 *addr = drvr->addresses[i].addr; 6508 6509 memcpy(addr, drvr->mac, ETH_ALEN); 6510 if (i) { 6511 addr[0] |= BIT(1); 6512 addr[ETH_ALEN - 1] ^= i; 6513 } 6514 } 6515 wiphy->addresses = drvr->addresses; 6516 wiphy->n_addresses = i; 6517 6518 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; 6519 wiphy->cipher_suites = brcmf_cipher_suites; 6520 wiphy->n_cipher_suites = ARRAY_SIZE(brcmf_cipher_suites); 6521 if (!brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MFP)) 6522 wiphy->n_cipher_suites--; 6523 wiphy->bss_select_support = BIT(NL80211_BSS_SELECT_ATTR_RSSI) | 6524 BIT(NL80211_BSS_SELECT_ATTR_BAND_PREF) | 6525 BIT(NL80211_BSS_SELECT_ATTR_RSSI_ADJUST); 6526 6527 wiphy->flags |= WIPHY_FLAG_NETNS_OK | 6528 WIPHY_FLAG_PS_ON_BY_DEFAULT | 6529 WIPHY_FLAG_HAVE_AP_SME | 6530 WIPHY_FLAG_OFFCHAN_TX | 6531 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL; 6532 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_TDLS)) 6533 wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS; 6534 if (!ifp->drvr->settings->roamoff) 6535 wiphy->flags |= WIPHY_FLAG_SUPPORTS_FW_ROAM; 6536 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_FWSUP)) { 6537 wiphy_ext_feature_set(wiphy, 6538 NL80211_EXT_FEATURE_4WAY_HANDSHAKE_STA_PSK); 6539 wiphy_ext_feature_set(wiphy, 6540 NL80211_EXT_FEATURE_4WAY_HANDSHAKE_STA_1X); 6541 } 6542 wiphy->mgmt_stypes = brcmf_txrx_stypes; 6543 wiphy->max_remain_on_channel_duration = 5000; 6544 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_PNO)) { 6545 gscan = brcmf_feat_is_enabled(ifp, BRCMF_FEAT_GSCAN); 6546 brcmf_pno_wiphy_params(wiphy, gscan); 6547 } 6548 /* vendor commands/events support */ 6549 wiphy->vendor_commands = brcmf_vendor_cmds; 6550 wiphy->n_vendor_commands = BRCMF_VNDR_CMDS_LAST - 1; 6551 6552 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_WOWL)) 6553 brcmf_wiphy_wowl_params(wiphy, ifp); 6554 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BANDLIST, &bandlist, 6555 sizeof(bandlist)); 6556 if (err) { 6557 brcmf_err("could not obtain band info: err=%d\n", err); 6558 return err; 6559 } 6560 /* first entry in bandlist is number of bands */ 6561 n_bands = le32_to_cpu(bandlist[0]); 6562 for (i = 1; i <= n_bands && i < ARRAY_SIZE(bandlist); i++) { 6563 if (bandlist[i] == cpu_to_le32(WLC_BAND_2G)) { 6564 band = kmemdup(&__wl_band_2ghz, sizeof(__wl_band_2ghz), 6565 GFP_KERNEL); 6566 if (!band) 6567 return -ENOMEM; 6568 6569 band->channels = kmemdup(&__wl_2ghz_channels, 6570 sizeof(__wl_2ghz_channels), 6571 GFP_KERNEL); 6572 if (!band->channels) { 6573 kfree(band); 6574 return -ENOMEM; 6575 } 6576 6577 band->n_channels = ARRAY_SIZE(__wl_2ghz_channels); 6578 wiphy->bands[NL80211_BAND_2GHZ] = band; 6579 } 6580 if (bandlist[i] == cpu_to_le32(WLC_BAND_5G)) { 6581 band = kmemdup(&__wl_band_5ghz, sizeof(__wl_band_5ghz), 6582 GFP_KERNEL); 6583 if (!band) 6584 return -ENOMEM; 6585 6586 band->channels = kmemdup(&__wl_5ghz_channels, 6587 sizeof(__wl_5ghz_channels), 6588 GFP_KERNEL); 6589 if (!band->channels) { 6590 kfree(band); 6591 return -ENOMEM; 6592 } 6593 6594 band->n_channels = ARRAY_SIZE(__wl_5ghz_channels); 6595 wiphy->bands[NL80211_BAND_5GHZ] = band; 6596 } 6597 } 6598 6599 wiphy_read_of_freq_limits(wiphy); 6600 6601 return 0; 6602 } 6603 6604 static s32 brcmf_config_dongle(struct brcmf_cfg80211_info *cfg) 6605 { 6606 struct net_device *ndev; 6607 struct wireless_dev *wdev; 6608 struct brcmf_if *ifp; 6609 s32 power_mode; 6610 s32 err = 0; 6611 6612 if (cfg->dongle_up) 6613 return err; 6614 6615 ndev = cfg_to_ndev(cfg); 6616 wdev = ndev->ieee80211_ptr; 6617 ifp = netdev_priv(ndev); 6618 6619 /* make sure RF is ready for work */ 6620 brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 0); 6621 6622 brcmf_dongle_scantime(ifp); 6623 6624 power_mode = cfg->pwr_save ? PM_FAST : PM_OFF; 6625 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM, power_mode); 6626 if (err) 6627 goto default_conf_out; 6628 brcmf_dbg(INFO, "power save set to %s\n", 6629 (power_mode ? "enabled" : "disabled")); 6630 6631 err = brcmf_dongle_roam(ifp); 6632 if (err) 6633 goto default_conf_out; 6634 err = brcmf_cfg80211_change_iface(wdev->wiphy, ndev, wdev->iftype, 6635 NULL); 6636 if (err) 6637 goto default_conf_out; 6638 6639 brcmf_configure_arp_nd_offload(ifp, true); 6640 6641 cfg->dongle_up = true; 6642 default_conf_out: 6643 6644 return err; 6645 6646 } 6647 6648 static s32 __brcmf_cfg80211_up(struct brcmf_if *ifp) 6649 { 6650 set_bit(BRCMF_VIF_STATUS_READY, &ifp->vif->sme_state); 6651 6652 return brcmf_config_dongle(ifp->drvr->config); 6653 } 6654 6655 static s32 __brcmf_cfg80211_down(struct brcmf_if *ifp) 6656 { 6657 struct brcmf_cfg80211_info *cfg = ifp->drvr->config; 6658 6659 /* 6660 * While going down, if associated with AP disassociate 6661 * from AP to save power 6662 */ 6663 if (check_vif_up(ifp->vif)) { 6664 brcmf_link_down(ifp->vif, WLAN_REASON_UNSPECIFIED); 6665 6666 /* Make sure WPA_Supplicant receives all the event 6667 generated due to DISASSOC call to the fw to keep 6668 the state fw and WPA_Supplicant state consistent 6669 */ 6670 brcmf_delay(500); 6671 } 6672 6673 brcmf_abort_scanning(cfg); 6674 clear_bit(BRCMF_VIF_STATUS_READY, &ifp->vif->sme_state); 6675 6676 return 0; 6677 } 6678 6679 s32 brcmf_cfg80211_up(struct net_device *ndev) 6680 { 6681 struct brcmf_if *ifp = netdev_priv(ndev); 6682 struct brcmf_cfg80211_info *cfg = ifp->drvr->config; 6683 s32 err = 0; 6684 6685 mutex_lock(&cfg->usr_sync); 6686 err = __brcmf_cfg80211_up(ifp); 6687 mutex_unlock(&cfg->usr_sync); 6688 6689 return err; 6690 } 6691 6692 s32 brcmf_cfg80211_down(struct net_device *ndev) 6693 { 6694 struct brcmf_if *ifp = netdev_priv(ndev); 6695 struct brcmf_cfg80211_info *cfg = ifp->drvr->config; 6696 s32 err = 0; 6697 6698 mutex_lock(&cfg->usr_sync); 6699 err = __brcmf_cfg80211_down(ifp); 6700 mutex_unlock(&cfg->usr_sync); 6701 6702 return err; 6703 } 6704 6705 enum nl80211_iftype brcmf_cfg80211_get_iftype(struct brcmf_if *ifp) 6706 { 6707 struct wireless_dev *wdev = &ifp->vif->wdev; 6708 6709 return wdev->iftype; 6710 } 6711 6712 bool brcmf_get_vif_state_any(struct brcmf_cfg80211_info *cfg, 6713 unsigned long state) 6714 { 6715 struct brcmf_cfg80211_vif *vif; 6716 6717 list_for_each_entry(vif, &cfg->vif_list, list) { 6718 if (test_bit(state, &vif->sme_state)) 6719 return true; 6720 } 6721 return false; 6722 } 6723 6724 static inline bool vif_event_equals(struct brcmf_cfg80211_vif_event *event, 6725 u8 action) 6726 { 6727 u8 evt_action; 6728 6729 spin_lock(&event->vif_event_lock); 6730 evt_action = event->action; 6731 spin_unlock(&event->vif_event_lock); 6732 return evt_action == action; 6733 } 6734 6735 void brcmf_cfg80211_arm_vif_event(struct brcmf_cfg80211_info *cfg, 6736 struct brcmf_cfg80211_vif *vif) 6737 { 6738 struct brcmf_cfg80211_vif_event *event = &cfg->vif_event; 6739 6740 spin_lock(&event->vif_event_lock); 6741 event->vif = vif; 6742 event->action = 0; 6743 spin_unlock(&event->vif_event_lock); 6744 } 6745 6746 bool brcmf_cfg80211_vif_event_armed(struct brcmf_cfg80211_info *cfg) 6747 { 6748 struct brcmf_cfg80211_vif_event *event = &cfg->vif_event; 6749 bool armed; 6750 6751 spin_lock(&event->vif_event_lock); 6752 armed = event->vif != NULL; 6753 spin_unlock(&event->vif_event_lock); 6754 6755 return armed; 6756 } 6757 6758 int brcmf_cfg80211_wait_vif_event(struct brcmf_cfg80211_info *cfg, 6759 u8 action, ulong timeout) 6760 { 6761 struct brcmf_cfg80211_vif_event *event = &cfg->vif_event; 6762 6763 return wait_event_timeout(event->vif_wq, 6764 vif_event_equals(event, action), timeout); 6765 } 6766 6767 static s32 brcmf_translate_country_code(struct brcmf_pub *drvr, char alpha2[2], 6768 struct brcmf_fil_country_le *ccreq) 6769 { 6770 struct brcmfmac_pd_cc *country_codes; 6771 struct brcmfmac_pd_cc_entry *cc; 6772 s32 found_index; 6773 int i; 6774 6775 country_codes = drvr->settings->country_codes; 6776 if (!country_codes) { 6777 brcmf_dbg(TRACE, "No country codes configured for device\n"); 6778 return -EINVAL; 6779 } 6780 6781 if ((alpha2[0] == ccreq->country_abbrev[0]) && 6782 (alpha2[1] == ccreq->country_abbrev[1])) { 6783 brcmf_dbg(TRACE, "Country code already set\n"); 6784 return -EAGAIN; 6785 } 6786 6787 found_index = -1; 6788 for (i = 0; i < country_codes->table_size; i++) { 6789 cc = &country_codes->table[i]; 6790 if ((cc->iso3166[0] == '\0') && (found_index == -1)) 6791 found_index = i; 6792 if ((cc->iso3166[0] == alpha2[0]) && 6793 (cc->iso3166[1] == alpha2[1])) { 6794 found_index = i; 6795 break; 6796 } 6797 } 6798 if (found_index == -1) { 6799 brcmf_dbg(TRACE, "No country code match found\n"); 6800 return -EINVAL; 6801 } 6802 memset(ccreq, 0, sizeof(*ccreq)); 6803 ccreq->rev = cpu_to_le32(country_codes->table[found_index].rev); 6804 memcpy(ccreq->ccode, country_codes->table[found_index].cc, 6805 BRCMF_COUNTRY_BUF_SZ); 6806 ccreq->country_abbrev[0] = alpha2[0]; 6807 ccreq->country_abbrev[1] = alpha2[1]; 6808 ccreq->country_abbrev[2] = 0; 6809 6810 return 0; 6811 } 6812 6813 static void brcmf_cfg80211_reg_notifier(struct wiphy *wiphy, 6814 struct regulatory_request *req) 6815 { 6816 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 6817 struct brcmf_if *ifp = brcmf_get_ifp(cfg->pub, 0); 6818 struct brcmf_fil_country_le ccreq; 6819 s32 err; 6820 int i; 6821 6822 /* The country code gets set to "00" by default at boot, ignore */ 6823 if (req->alpha2[0] == '0' && req->alpha2[1] == '0') 6824 return; 6825 6826 /* ignore non-ISO3166 country codes */ 6827 for (i = 0; i < 2; i++) 6828 if (req->alpha2[i] < 'A' || req->alpha2[i] > 'Z') { 6829 brcmf_err("not an ISO3166 code (0x%02x 0x%02x)\n", 6830 req->alpha2[0], req->alpha2[1]); 6831 return; 6832 } 6833 6834 brcmf_dbg(TRACE, "Enter: initiator=%d, alpha=%c%c\n", req->initiator, 6835 req->alpha2[0], req->alpha2[1]); 6836 6837 err = brcmf_fil_iovar_data_get(ifp, "country", &ccreq, sizeof(ccreq)); 6838 if (err) { 6839 brcmf_err("Country code iovar returned err = %d\n", err); 6840 return; 6841 } 6842 6843 err = brcmf_translate_country_code(ifp->drvr, req->alpha2, &ccreq); 6844 if (err) 6845 return; 6846 6847 err = brcmf_fil_iovar_data_set(ifp, "country", &ccreq, sizeof(ccreq)); 6848 if (err) { 6849 brcmf_err("Firmware rejected country setting\n"); 6850 return; 6851 } 6852 brcmf_setup_wiphybands(cfg); 6853 } 6854 6855 static void brcmf_free_wiphy(struct wiphy *wiphy) 6856 { 6857 int i; 6858 6859 if (!wiphy) 6860 return; 6861 6862 if (wiphy->iface_combinations) { 6863 for (i = 0; i < wiphy->n_iface_combinations; i++) 6864 kfree(wiphy->iface_combinations[i].limits); 6865 } 6866 kfree(wiphy->iface_combinations); 6867 if (wiphy->bands[NL80211_BAND_2GHZ]) { 6868 kfree(wiphy->bands[NL80211_BAND_2GHZ]->channels); 6869 kfree(wiphy->bands[NL80211_BAND_2GHZ]); 6870 } 6871 if (wiphy->bands[NL80211_BAND_5GHZ]) { 6872 kfree(wiphy->bands[NL80211_BAND_5GHZ]->channels); 6873 kfree(wiphy->bands[NL80211_BAND_5GHZ]); 6874 } 6875 #if IS_ENABLED(CONFIG_PM) 6876 if (wiphy->wowlan != &brcmf_wowlan_support) 6877 kfree(wiphy->wowlan); 6878 #endif 6879 } 6880 6881 struct brcmf_cfg80211_info *brcmf_cfg80211_attach(struct brcmf_pub *drvr, 6882 struct cfg80211_ops *ops, 6883 bool p2pdev_forced) 6884 { 6885 struct wiphy *wiphy = drvr->wiphy; 6886 struct net_device *ndev = brcmf_get_ifp(drvr, 0)->ndev; 6887 struct brcmf_cfg80211_info *cfg; 6888 struct brcmf_cfg80211_vif *vif; 6889 struct brcmf_if *ifp; 6890 s32 err = 0; 6891 s32 io_type; 6892 u16 *cap = NULL; 6893 6894 if (!ndev) { 6895 brcmf_err("ndev is invalid\n"); 6896 return NULL; 6897 } 6898 6899 cfg = kzalloc(sizeof(*cfg), GFP_KERNEL); 6900 if (!cfg) { 6901 brcmf_err("Could not allocate wiphy device\n"); 6902 return NULL; 6903 } 6904 6905 cfg->wiphy = wiphy; 6906 cfg->pub = drvr; 6907 init_vif_event(&cfg->vif_event); 6908 INIT_LIST_HEAD(&cfg->vif_list); 6909 6910 vif = brcmf_alloc_vif(cfg, NL80211_IFTYPE_STATION); 6911 if (IS_ERR(vif)) 6912 goto wiphy_out; 6913 6914 ifp = netdev_priv(ndev); 6915 vif->ifp = ifp; 6916 vif->wdev.netdev = ndev; 6917 ndev->ieee80211_ptr = &vif->wdev; 6918 SET_NETDEV_DEV(ndev, wiphy_dev(cfg->wiphy)); 6919 6920 err = wl_init_priv(cfg); 6921 if (err) { 6922 brcmf_err("Failed to init iwm_priv (%d)\n", err); 6923 brcmf_free_vif(vif); 6924 goto wiphy_out; 6925 } 6926 ifp->vif = vif; 6927 6928 /* determine d11 io type before wiphy setup */ 6929 err = brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_VERSION, &io_type); 6930 if (err) { 6931 brcmf_err("Failed to get D11 version (%d)\n", err); 6932 goto priv_out; 6933 } 6934 cfg->d11inf.io_type = (u8)io_type; 6935 brcmu_d11_attach(&cfg->d11inf); 6936 6937 /* regulatory notifer below needs access to cfg so 6938 * assign it now. 6939 */ 6940 drvr->config = cfg; 6941 6942 err = brcmf_setup_wiphy(wiphy, ifp); 6943 if (err < 0) 6944 goto priv_out; 6945 6946 brcmf_dbg(INFO, "Registering custom regulatory\n"); 6947 wiphy->reg_notifier = brcmf_cfg80211_reg_notifier; 6948 wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG; 6949 wiphy_apply_custom_regulatory(wiphy, &brcmf_regdom); 6950 6951 /* firmware defaults to 40MHz disabled in 2G band. We signal 6952 * cfg80211 here that we do and have it decide we can enable 6953 * it. But first check if device does support 2G operation. 6954 */ 6955 if (wiphy->bands[NL80211_BAND_2GHZ]) { 6956 cap = &wiphy->bands[NL80211_BAND_2GHZ]->ht_cap.cap; 6957 *cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; 6958 } 6959 #ifdef CONFIG_PM 6960 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_WOWL_GTK)) 6961 ops->set_rekey_data = brcmf_cfg80211_set_rekey_data; 6962 #endif 6963 err = wiphy_register(wiphy); 6964 if (err < 0) { 6965 brcmf_err("Could not register wiphy device (%d)\n", err); 6966 goto priv_out; 6967 } 6968 6969 err = brcmf_setup_wiphybands(cfg); 6970 if (err) { 6971 brcmf_err("Setting wiphy bands failed (%d)\n", err); 6972 goto wiphy_unreg_out; 6973 } 6974 6975 /* If cfg80211 didn't disable 40MHz HT CAP in wiphy_register(), 6976 * setup 40MHz in 2GHz band and enable OBSS scanning. 6977 */ 6978 if (cap && (*cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40)) { 6979 err = brcmf_enable_bw40_2g(cfg); 6980 if (!err) 6981 err = brcmf_fil_iovar_int_set(ifp, "obss_coex", 6982 BRCMF_OBSS_COEX_AUTO); 6983 else 6984 *cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40; 6985 } 6986 6987 err = brcmf_fweh_activate_events(ifp); 6988 if (err) { 6989 brcmf_err("FWEH activation failed (%d)\n", err); 6990 goto wiphy_unreg_out; 6991 } 6992 6993 err = brcmf_p2p_attach(cfg, p2pdev_forced); 6994 if (err) { 6995 brcmf_err("P2P initialisation failed (%d)\n", err); 6996 goto wiphy_unreg_out; 6997 } 6998 err = brcmf_btcoex_attach(cfg); 6999 if (err) { 7000 brcmf_err("BT-coex initialisation failed (%d)\n", err); 7001 brcmf_p2p_detach(&cfg->p2p); 7002 goto wiphy_unreg_out; 7003 } 7004 err = brcmf_pno_attach(cfg); 7005 if (err) { 7006 brcmf_err("PNO initialisation failed (%d)\n", err); 7007 brcmf_btcoex_detach(cfg); 7008 brcmf_p2p_detach(&cfg->p2p); 7009 goto wiphy_unreg_out; 7010 } 7011 7012 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_TDLS)) { 7013 err = brcmf_fil_iovar_int_set(ifp, "tdls_enable", 1); 7014 if (err) { 7015 brcmf_dbg(INFO, "TDLS not enabled (%d)\n", err); 7016 wiphy->flags &= ~WIPHY_FLAG_SUPPORTS_TDLS; 7017 } else { 7018 brcmf_fweh_register(cfg->pub, BRCMF_E_TDLS_PEER_EVENT, 7019 brcmf_notify_tdls_peer_event); 7020 } 7021 } 7022 7023 /* (re-) activate FWEH event handling */ 7024 err = brcmf_fweh_activate_events(ifp); 7025 if (err) { 7026 brcmf_err("FWEH activation failed (%d)\n", err); 7027 goto detach; 7028 } 7029 7030 /* Fill in some of the advertised nl80211 supported features */ 7031 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_SCAN_RANDOM_MAC)) { 7032 wiphy->features |= NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR; 7033 #ifdef CONFIG_PM 7034 if (wiphy->wowlan && 7035 wiphy->wowlan->flags & WIPHY_WOWLAN_NET_DETECT) 7036 wiphy->features |= NL80211_FEATURE_ND_RANDOM_MAC_ADDR; 7037 #endif 7038 } 7039 7040 return cfg; 7041 7042 detach: 7043 brcmf_pno_detach(cfg); 7044 brcmf_btcoex_detach(cfg); 7045 brcmf_p2p_detach(&cfg->p2p); 7046 wiphy_unreg_out: 7047 wiphy_unregister(cfg->wiphy); 7048 priv_out: 7049 wl_deinit_priv(cfg); 7050 brcmf_free_vif(vif); 7051 ifp->vif = NULL; 7052 wiphy_out: 7053 brcmf_free_wiphy(wiphy); 7054 kfree(cfg); 7055 return NULL; 7056 } 7057 7058 void brcmf_cfg80211_detach(struct brcmf_cfg80211_info *cfg) 7059 { 7060 if (!cfg) 7061 return; 7062 7063 brcmf_pno_detach(cfg); 7064 brcmf_btcoex_detach(cfg); 7065 wiphy_unregister(cfg->wiphy); 7066 kfree(cfg->ops); 7067 wl_deinit_priv(cfg); 7068 brcmf_free_wiphy(cfg->wiphy); 7069 kfree(cfg); 7070 } 7071