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_priv(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_priv(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_priv(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 default: 1653 brcmf_err("invalid cipher group (%d)\n", 1654 sme->crypto.cipher_group); 1655 return -EINVAL; 1656 } 1657 } 1658 1659 if (profile->use_fwsup == BRCMF_PROFILE_FWSUP_1X) 1660 brcmf_dbg(INFO, "using 1X offload\n"); 1661 1662 if (!brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MFP)) 1663 goto skip_mfp_config; 1664 /* The MFP mode (1 or 2) needs to be determined, parse IEs. The 1665 * IE will not be verified, just a quick search for MFP config 1666 */ 1667 rsn_ie = brcmf_parse_tlvs((const u8 *)sme->ie, sme->ie_len, 1668 WLAN_EID_RSN); 1669 if (!rsn_ie) 1670 goto skip_mfp_config; 1671 ie = (const u8 *)rsn_ie; 1672 ie_len = rsn_ie->len + TLV_HDR_LEN; 1673 /* Skip unicast suite */ 1674 offset = TLV_HDR_LEN + WPA_IE_VERSION_LEN + WPA_IE_MIN_OUI_LEN; 1675 if (offset + WPA_IE_SUITE_COUNT_LEN >= ie_len) 1676 goto skip_mfp_config; 1677 /* Skip multicast suite */ 1678 count = ie[offset] + (ie[offset + 1] << 8); 1679 offset += WPA_IE_SUITE_COUNT_LEN + (count * WPA_IE_MIN_OUI_LEN); 1680 if (offset + WPA_IE_SUITE_COUNT_LEN >= ie_len) 1681 goto skip_mfp_config; 1682 /* Skip auth key management suite(s) */ 1683 count = ie[offset] + (ie[offset + 1] << 8); 1684 offset += WPA_IE_SUITE_COUNT_LEN + (count * WPA_IE_MIN_OUI_LEN); 1685 if (offset + WPA_IE_SUITE_COUNT_LEN > ie_len) 1686 goto skip_mfp_config; 1687 /* Ready to read capabilities */ 1688 mfp = BRCMF_MFP_NONE; 1689 rsn_cap = ie[offset] + (ie[offset + 1] << 8); 1690 if (rsn_cap & RSN_CAP_MFPR_MASK) 1691 mfp = BRCMF_MFP_REQUIRED; 1692 else if (rsn_cap & RSN_CAP_MFPC_MASK) 1693 mfp = BRCMF_MFP_CAPABLE; 1694 brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "mfp", mfp); 1695 1696 skip_mfp_config: 1697 brcmf_dbg(CONN, "setting wpa_auth to %d\n", val); 1698 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "wpa_auth", val); 1699 if (err) { 1700 brcmf_err("could not set wpa_auth (%d)\n", err); 1701 return err; 1702 } 1703 1704 return err; 1705 } 1706 1707 static s32 1708 brcmf_set_sharedkey(struct net_device *ndev, 1709 struct cfg80211_connect_params *sme) 1710 { 1711 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev); 1712 struct brcmf_cfg80211_security *sec; 1713 struct brcmf_wsec_key key; 1714 s32 val; 1715 s32 err = 0; 1716 1717 brcmf_dbg(CONN, "key len (%d)\n", sme->key_len); 1718 1719 if (sme->key_len == 0) 1720 return 0; 1721 1722 sec = &profile->sec; 1723 brcmf_dbg(CONN, "wpa_versions 0x%x cipher_pairwise 0x%x\n", 1724 sec->wpa_versions, sec->cipher_pairwise); 1725 1726 if (sec->wpa_versions & (NL80211_WPA_VERSION_1 | NL80211_WPA_VERSION_2)) 1727 return 0; 1728 1729 if (!(sec->cipher_pairwise & 1730 (WLAN_CIPHER_SUITE_WEP40 | WLAN_CIPHER_SUITE_WEP104))) 1731 return 0; 1732 1733 memset(&key, 0, sizeof(key)); 1734 key.len = (u32) sme->key_len; 1735 key.index = (u32) sme->key_idx; 1736 if (key.len > sizeof(key.data)) { 1737 brcmf_err("Too long key length (%u)\n", key.len); 1738 return -EINVAL; 1739 } 1740 memcpy(key.data, sme->key, key.len); 1741 key.flags = BRCMF_PRIMARY_KEY; 1742 switch (sec->cipher_pairwise) { 1743 case WLAN_CIPHER_SUITE_WEP40: 1744 key.algo = CRYPTO_ALGO_WEP1; 1745 break; 1746 case WLAN_CIPHER_SUITE_WEP104: 1747 key.algo = CRYPTO_ALGO_WEP128; 1748 break; 1749 default: 1750 brcmf_err("Invalid algorithm (%d)\n", 1751 sme->crypto.ciphers_pairwise[0]); 1752 return -EINVAL; 1753 } 1754 /* Set the new key/index */ 1755 brcmf_dbg(CONN, "key length (%d) key index (%d) algo (%d)\n", 1756 key.len, key.index, key.algo); 1757 brcmf_dbg(CONN, "key \"%s\"\n", key.data); 1758 err = send_key_to_dongle(netdev_priv(ndev), &key); 1759 if (err) 1760 return err; 1761 1762 if (sec->auth_type == NL80211_AUTHTYPE_SHARED_KEY) { 1763 brcmf_dbg(CONN, "set auth_type to shared key\n"); 1764 val = WL_AUTH_SHARED_KEY; /* shared key */ 1765 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "auth", val); 1766 if (err) 1767 brcmf_err("set auth failed (%d)\n", err); 1768 } 1769 return err; 1770 } 1771 1772 static 1773 enum nl80211_auth_type brcmf_war_auth_type(struct brcmf_if *ifp, 1774 enum nl80211_auth_type type) 1775 { 1776 if (type == NL80211_AUTHTYPE_AUTOMATIC && 1777 brcmf_feat_is_quirk_enabled(ifp, BRCMF_FEAT_QUIRK_AUTO_AUTH)) { 1778 brcmf_dbg(CONN, "WAR: use OPEN instead of AUTO\n"); 1779 type = NL80211_AUTHTYPE_OPEN_SYSTEM; 1780 } 1781 return type; 1782 } 1783 1784 static void brcmf_set_join_pref(struct brcmf_if *ifp, 1785 struct cfg80211_bss_selection *bss_select) 1786 { 1787 struct brcmf_join_pref_params join_pref_params[2]; 1788 enum nl80211_band band; 1789 int err, i = 0; 1790 1791 join_pref_params[i].len = 2; 1792 join_pref_params[i].rssi_gain = 0; 1793 1794 if (bss_select->behaviour != NL80211_BSS_SELECT_ATTR_BAND_PREF) 1795 brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_ASSOC_PREFER, WLC_BAND_AUTO); 1796 1797 switch (bss_select->behaviour) { 1798 case __NL80211_BSS_SELECT_ATTR_INVALID: 1799 brcmf_c_set_joinpref_default(ifp); 1800 return; 1801 case NL80211_BSS_SELECT_ATTR_BAND_PREF: 1802 join_pref_params[i].type = BRCMF_JOIN_PREF_BAND; 1803 band = bss_select->param.band_pref; 1804 join_pref_params[i].band = nl80211_band_to_fwil(band); 1805 i++; 1806 break; 1807 case NL80211_BSS_SELECT_ATTR_RSSI_ADJUST: 1808 join_pref_params[i].type = BRCMF_JOIN_PREF_RSSI_DELTA; 1809 band = bss_select->param.adjust.band; 1810 join_pref_params[i].band = nl80211_band_to_fwil(band); 1811 join_pref_params[i].rssi_gain = bss_select->param.adjust.delta; 1812 i++; 1813 break; 1814 case NL80211_BSS_SELECT_ATTR_RSSI: 1815 default: 1816 break; 1817 } 1818 join_pref_params[i].type = BRCMF_JOIN_PREF_RSSI; 1819 join_pref_params[i].len = 2; 1820 join_pref_params[i].rssi_gain = 0; 1821 join_pref_params[i].band = 0; 1822 err = brcmf_fil_iovar_data_set(ifp, "join_pref", join_pref_params, 1823 sizeof(join_pref_params)); 1824 if (err) 1825 brcmf_err("Set join_pref error (%d)\n", err); 1826 } 1827 1828 static s32 1829 brcmf_cfg80211_connect(struct wiphy *wiphy, struct net_device *ndev, 1830 struct cfg80211_connect_params *sme) 1831 { 1832 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 1833 struct brcmf_if *ifp = netdev_priv(ndev); 1834 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile; 1835 struct ieee80211_channel *chan = sme->channel; 1836 struct brcmf_join_params join_params; 1837 size_t join_params_size; 1838 const struct brcmf_tlv *rsn_ie; 1839 const struct brcmf_vs_tlv *wpa_ie; 1840 const void *ie; 1841 u32 ie_len; 1842 struct brcmf_ext_join_params_le *ext_join_params; 1843 u16 chanspec; 1844 s32 err = 0; 1845 u32 ssid_len; 1846 1847 brcmf_dbg(TRACE, "Enter\n"); 1848 if (!check_vif_up(ifp->vif)) 1849 return -EIO; 1850 1851 if (!sme->ssid) { 1852 brcmf_err("Invalid ssid\n"); 1853 return -EOPNOTSUPP; 1854 } 1855 1856 if (ifp->vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif) { 1857 /* A normal (non P2P) connection request setup. */ 1858 ie = NULL; 1859 ie_len = 0; 1860 /* find the WPA_IE */ 1861 wpa_ie = brcmf_find_wpaie((u8 *)sme->ie, sme->ie_len); 1862 if (wpa_ie) { 1863 ie = wpa_ie; 1864 ie_len = wpa_ie->len + TLV_HDR_LEN; 1865 } else { 1866 /* find the RSN_IE */ 1867 rsn_ie = brcmf_parse_tlvs((const u8 *)sme->ie, 1868 sme->ie_len, 1869 WLAN_EID_RSN); 1870 if (rsn_ie) { 1871 ie = rsn_ie; 1872 ie_len = rsn_ie->len + TLV_HDR_LEN; 1873 } 1874 } 1875 brcmf_fil_iovar_data_set(ifp, "wpaie", ie, ie_len); 1876 } 1877 1878 err = brcmf_vif_set_mgmt_ie(ifp->vif, BRCMF_VNDR_IE_ASSOCREQ_FLAG, 1879 sme->ie, sme->ie_len); 1880 if (err) 1881 brcmf_err("Set Assoc REQ IE Failed\n"); 1882 else 1883 brcmf_dbg(TRACE, "Applied Vndr IEs for Assoc request\n"); 1884 1885 set_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state); 1886 1887 if (chan) { 1888 cfg->channel = 1889 ieee80211_frequency_to_channel(chan->center_freq); 1890 chanspec = channel_to_chanspec(&cfg->d11inf, chan); 1891 brcmf_dbg(CONN, "channel=%d, center_req=%d, chanspec=0x%04x\n", 1892 cfg->channel, chan->center_freq, chanspec); 1893 } else { 1894 cfg->channel = 0; 1895 chanspec = 0; 1896 } 1897 1898 brcmf_dbg(INFO, "ie (%p), ie_len (%zd)\n", sme->ie, sme->ie_len); 1899 1900 err = brcmf_set_wpa_version(ndev, sme); 1901 if (err) { 1902 brcmf_err("wl_set_wpa_version failed (%d)\n", err); 1903 goto done; 1904 } 1905 1906 sme->auth_type = brcmf_war_auth_type(ifp, sme->auth_type); 1907 err = brcmf_set_auth_type(ndev, sme); 1908 if (err) { 1909 brcmf_err("wl_set_auth_type failed (%d)\n", err); 1910 goto done; 1911 } 1912 1913 err = brcmf_set_wsec_mode(ndev, sme); 1914 if (err) { 1915 brcmf_err("wl_set_set_cipher failed (%d)\n", err); 1916 goto done; 1917 } 1918 1919 err = brcmf_set_key_mgmt(ndev, sme); 1920 if (err) { 1921 brcmf_err("wl_set_key_mgmt failed (%d)\n", err); 1922 goto done; 1923 } 1924 1925 err = brcmf_set_sharedkey(ndev, sme); 1926 if (err) { 1927 brcmf_err("brcmf_set_sharedkey failed (%d)\n", err); 1928 goto done; 1929 } 1930 1931 if (sme->crypto.psk) { 1932 if (WARN_ON(profile->use_fwsup != BRCMF_PROFILE_FWSUP_NONE)) { 1933 err = -EINVAL; 1934 goto done; 1935 } 1936 brcmf_dbg(INFO, "using PSK offload\n"); 1937 profile->use_fwsup = BRCMF_PROFILE_FWSUP_PSK; 1938 } 1939 1940 if (profile->use_fwsup != BRCMF_PROFILE_FWSUP_NONE) { 1941 /* enable firmware supplicant for this interface */ 1942 err = brcmf_fil_iovar_int_set(ifp, "sup_wpa", 1); 1943 if (err < 0) { 1944 brcmf_err("failed to enable fw supplicant\n"); 1945 goto done; 1946 } 1947 } 1948 1949 if (profile->use_fwsup == BRCMF_PROFILE_FWSUP_PSK) { 1950 err = brcmf_set_pmk(ifp, sme->crypto.psk, 1951 BRCMF_WSEC_MAX_PSK_LEN); 1952 if (err) 1953 goto done; 1954 } 1955 1956 /* Join with specific BSSID and cached SSID 1957 * If SSID is zero join based on BSSID only 1958 */ 1959 join_params_size = offsetof(struct brcmf_ext_join_params_le, assoc_le) + 1960 offsetof(struct brcmf_assoc_params_le, chanspec_list); 1961 if (cfg->channel) 1962 join_params_size += sizeof(u16); 1963 ext_join_params = kzalloc(join_params_size, GFP_KERNEL); 1964 if (ext_join_params == NULL) { 1965 err = -ENOMEM; 1966 goto done; 1967 } 1968 ssid_len = min_t(u32, sme->ssid_len, IEEE80211_MAX_SSID_LEN); 1969 ext_join_params->ssid_le.SSID_len = cpu_to_le32(ssid_len); 1970 memcpy(&ext_join_params->ssid_le.SSID, sme->ssid, ssid_len); 1971 if (ssid_len < IEEE80211_MAX_SSID_LEN) 1972 brcmf_dbg(CONN, "SSID \"%s\", len (%d)\n", 1973 ext_join_params->ssid_le.SSID, ssid_len); 1974 1975 /* Set up join scan parameters */ 1976 ext_join_params->scan_le.scan_type = -1; 1977 ext_join_params->scan_le.home_time = cpu_to_le32(-1); 1978 1979 if (sme->bssid) 1980 memcpy(&ext_join_params->assoc_le.bssid, sme->bssid, ETH_ALEN); 1981 else 1982 eth_broadcast_addr(ext_join_params->assoc_le.bssid); 1983 1984 if (cfg->channel) { 1985 ext_join_params->assoc_le.chanspec_num = cpu_to_le32(1); 1986 1987 ext_join_params->assoc_le.chanspec_list[0] = 1988 cpu_to_le16(chanspec); 1989 /* Increase dwell time to receive probe response or detect 1990 * beacon from target AP at a noisy air only during connect 1991 * command. 1992 */ 1993 ext_join_params->scan_le.active_time = 1994 cpu_to_le32(BRCMF_SCAN_JOIN_ACTIVE_DWELL_TIME_MS); 1995 ext_join_params->scan_le.passive_time = 1996 cpu_to_le32(BRCMF_SCAN_JOIN_PASSIVE_DWELL_TIME_MS); 1997 /* To sync with presence period of VSDB GO send probe request 1998 * more frequently. Probe request will be stopped when it gets 1999 * probe response from target AP/GO. 2000 */ 2001 ext_join_params->scan_le.nprobes = 2002 cpu_to_le32(BRCMF_SCAN_JOIN_ACTIVE_DWELL_TIME_MS / 2003 BRCMF_SCAN_JOIN_PROBE_INTERVAL_MS); 2004 } else { 2005 ext_join_params->scan_le.active_time = cpu_to_le32(-1); 2006 ext_join_params->scan_le.passive_time = cpu_to_le32(-1); 2007 ext_join_params->scan_le.nprobes = cpu_to_le32(-1); 2008 } 2009 2010 brcmf_set_join_pref(ifp, &sme->bss_select); 2011 2012 err = brcmf_fil_bsscfg_data_set(ifp, "join", ext_join_params, 2013 join_params_size); 2014 kfree(ext_join_params); 2015 if (!err) 2016 /* This is it. join command worked, we are done */ 2017 goto done; 2018 2019 /* join command failed, fallback to set ssid */ 2020 memset(&join_params, 0, sizeof(join_params)); 2021 join_params_size = sizeof(join_params.ssid_le); 2022 2023 memcpy(&join_params.ssid_le.SSID, sme->ssid, ssid_len); 2024 join_params.ssid_le.SSID_len = cpu_to_le32(ssid_len); 2025 2026 if (sme->bssid) 2027 memcpy(join_params.params_le.bssid, sme->bssid, ETH_ALEN); 2028 else 2029 eth_broadcast_addr(join_params.params_le.bssid); 2030 2031 if (cfg->channel) { 2032 join_params.params_le.chanspec_list[0] = cpu_to_le16(chanspec); 2033 join_params.params_le.chanspec_num = cpu_to_le32(1); 2034 join_params_size += sizeof(join_params.params_le); 2035 } 2036 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID, 2037 &join_params, join_params_size); 2038 if (err) 2039 brcmf_err("BRCMF_C_SET_SSID failed (%d)\n", err); 2040 2041 done: 2042 if (err) 2043 clear_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state); 2044 brcmf_dbg(TRACE, "Exit\n"); 2045 return err; 2046 } 2047 2048 static s32 2049 brcmf_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *ndev, 2050 u16 reason_code) 2051 { 2052 struct brcmf_if *ifp = netdev_priv(ndev); 2053 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile; 2054 struct brcmf_scb_val_le scbval; 2055 s32 err = 0; 2056 2057 brcmf_dbg(TRACE, "Enter. Reason code = %d\n", reason_code); 2058 if (!check_vif_up(ifp->vif)) 2059 return -EIO; 2060 2061 clear_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state); 2062 clear_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state); 2063 cfg80211_disconnected(ndev, reason_code, NULL, 0, true, GFP_KERNEL); 2064 2065 memcpy(&scbval.ea, &profile->bssid, ETH_ALEN); 2066 scbval.val = cpu_to_le32(reason_code); 2067 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_DISASSOC, 2068 &scbval, sizeof(scbval)); 2069 if (err) 2070 brcmf_err("error (%d)\n", err); 2071 2072 brcmf_dbg(TRACE, "Exit\n"); 2073 return err; 2074 } 2075 2076 static s32 2077 brcmf_cfg80211_set_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev, 2078 enum nl80211_tx_power_setting type, s32 mbm) 2079 { 2080 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 2081 struct net_device *ndev = cfg_to_ndev(cfg); 2082 struct brcmf_if *ifp = netdev_priv(ndev); 2083 s32 err; 2084 s32 disable; 2085 u32 qdbm = 127; 2086 2087 brcmf_dbg(TRACE, "Enter %d %d\n", type, mbm); 2088 if (!check_vif_up(ifp->vif)) 2089 return -EIO; 2090 2091 switch (type) { 2092 case NL80211_TX_POWER_AUTOMATIC: 2093 break; 2094 case NL80211_TX_POWER_LIMITED: 2095 case NL80211_TX_POWER_FIXED: 2096 if (mbm < 0) { 2097 brcmf_err("TX_POWER_FIXED - dbm is negative\n"); 2098 err = -EINVAL; 2099 goto done; 2100 } 2101 qdbm = MBM_TO_DBM(4 * mbm); 2102 if (qdbm > 127) 2103 qdbm = 127; 2104 qdbm |= WL_TXPWR_OVERRIDE; 2105 break; 2106 default: 2107 brcmf_err("Unsupported type %d\n", type); 2108 err = -EINVAL; 2109 goto done; 2110 } 2111 /* Make sure radio is off or on as far as software is concerned */ 2112 disable = WL_RADIO_SW_DISABLE << 16; 2113 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_RADIO, disable); 2114 if (err) 2115 brcmf_err("WLC_SET_RADIO error (%d)\n", err); 2116 2117 err = brcmf_fil_iovar_int_set(ifp, "qtxpower", qdbm); 2118 if (err) 2119 brcmf_err("qtxpower error (%d)\n", err); 2120 2121 done: 2122 brcmf_dbg(TRACE, "Exit %d (qdbm)\n", qdbm & ~WL_TXPWR_OVERRIDE); 2123 return err; 2124 } 2125 2126 static s32 2127 brcmf_cfg80211_get_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev, 2128 s32 *dbm) 2129 { 2130 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 2131 struct net_device *ndev = cfg_to_ndev(cfg); 2132 struct brcmf_if *ifp = netdev_priv(ndev); 2133 s32 qdbm = 0; 2134 s32 err; 2135 2136 brcmf_dbg(TRACE, "Enter\n"); 2137 if (!check_vif_up(ifp->vif)) 2138 return -EIO; 2139 2140 err = brcmf_fil_iovar_int_get(ifp, "qtxpower", &qdbm); 2141 if (err) { 2142 brcmf_err("error (%d)\n", err); 2143 goto done; 2144 } 2145 *dbm = (qdbm & ~WL_TXPWR_OVERRIDE) / 4; 2146 2147 done: 2148 brcmf_dbg(TRACE, "Exit (0x%x %d)\n", qdbm, *dbm); 2149 return err; 2150 } 2151 2152 static s32 2153 brcmf_cfg80211_config_default_key(struct wiphy *wiphy, struct net_device *ndev, 2154 u8 key_idx, bool unicast, bool multicast) 2155 { 2156 struct brcmf_if *ifp = netdev_priv(ndev); 2157 u32 index; 2158 u32 wsec; 2159 s32 err = 0; 2160 2161 brcmf_dbg(TRACE, "Enter\n"); 2162 brcmf_dbg(CONN, "key index (%d)\n", key_idx); 2163 if (!check_vif_up(ifp->vif)) 2164 return -EIO; 2165 2166 err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec); 2167 if (err) { 2168 brcmf_err("WLC_GET_WSEC error (%d)\n", err); 2169 goto done; 2170 } 2171 2172 if (wsec & WEP_ENABLED) { 2173 /* Just select a new current key */ 2174 index = key_idx; 2175 err = brcmf_fil_cmd_int_set(ifp, 2176 BRCMF_C_SET_KEY_PRIMARY, index); 2177 if (err) 2178 brcmf_err("error (%d)\n", err); 2179 } 2180 done: 2181 brcmf_dbg(TRACE, "Exit\n"); 2182 return err; 2183 } 2184 2185 static s32 2186 brcmf_cfg80211_del_key(struct wiphy *wiphy, struct net_device *ndev, 2187 u8 key_idx, bool pairwise, const u8 *mac_addr) 2188 { 2189 struct brcmf_if *ifp = netdev_priv(ndev); 2190 struct brcmf_wsec_key *key; 2191 s32 err; 2192 2193 brcmf_dbg(TRACE, "Enter\n"); 2194 brcmf_dbg(CONN, "key index (%d)\n", key_idx); 2195 2196 if (!check_vif_up(ifp->vif)) 2197 return -EIO; 2198 2199 if (key_idx >= BRCMF_MAX_DEFAULT_KEYS) { 2200 /* we ignore this key index in this case */ 2201 return -EINVAL; 2202 } 2203 2204 key = &ifp->vif->profile.key[key_idx]; 2205 2206 if (key->algo == CRYPTO_ALGO_OFF) { 2207 brcmf_dbg(CONN, "Ignore clearing of (never configured) key\n"); 2208 return -EINVAL; 2209 } 2210 2211 memset(key, 0, sizeof(*key)); 2212 key->index = (u32)key_idx; 2213 key->flags = BRCMF_PRIMARY_KEY; 2214 2215 /* Clear the key/index */ 2216 err = send_key_to_dongle(ifp, key); 2217 2218 brcmf_dbg(TRACE, "Exit\n"); 2219 return err; 2220 } 2221 2222 static s32 2223 brcmf_cfg80211_add_key(struct wiphy *wiphy, struct net_device *ndev, 2224 u8 key_idx, bool pairwise, const u8 *mac_addr, 2225 struct key_params *params) 2226 { 2227 struct brcmf_if *ifp = netdev_priv(ndev); 2228 struct brcmf_wsec_key *key; 2229 s32 val; 2230 s32 wsec; 2231 s32 err; 2232 u8 keybuf[8]; 2233 bool ext_key; 2234 2235 brcmf_dbg(TRACE, "Enter\n"); 2236 brcmf_dbg(CONN, "key index (%d)\n", key_idx); 2237 if (!check_vif_up(ifp->vif)) 2238 return -EIO; 2239 2240 if (key_idx >= BRCMF_MAX_DEFAULT_KEYS) { 2241 /* we ignore this key index in this case */ 2242 brcmf_err("invalid key index (%d)\n", key_idx); 2243 return -EINVAL; 2244 } 2245 2246 if (params->key_len == 0) 2247 return brcmf_cfg80211_del_key(wiphy, ndev, key_idx, pairwise, 2248 mac_addr); 2249 2250 if (params->key_len > sizeof(key->data)) { 2251 brcmf_err("Too long key length (%u)\n", params->key_len); 2252 return -EINVAL; 2253 } 2254 2255 ext_key = false; 2256 if (mac_addr && (params->cipher != WLAN_CIPHER_SUITE_WEP40) && 2257 (params->cipher != WLAN_CIPHER_SUITE_WEP104)) { 2258 brcmf_dbg(TRACE, "Ext key, mac %pM", mac_addr); 2259 ext_key = true; 2260 } 2261 2262 key = &ifp->vif->profile.key[key_idx]; 2263 memset(key, 0, sizeof(*key)); 2264 if ((ext_key) && (!is_multicast_ether_addr(mac_addr))) 2265 memcpy((char *)&key->ea, (void *)mac_addr, ETH_ALEN); 2266 key->len = params->key_len; 2267 key->index = key_idx; 2268 memcpy(key->data, params->key, key->len); 2269 if (!ext_key) 2270 key->flags = BRCMF_PRIMARY_KEY; 2271 2272 switch (params->cipher) { 2273 case WLAN_CIPHER_SUITE_WEP40: 2274 key->algo = CRYPTO_ALGO_WEP1; 2275 val = WEP_ENABLED; 2276 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP40\n"); 2277 break; 2278 case WLAN_CIPHER_SUITE_WEP104: 2279 key->algo = CRYPTO_ALGO_WEP128; 2280 val = WEP_ENABLED; 2281 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP104\n"); 2282 break; 2283 case WLAN_CIPHER_SUITE_TKIP: 2284 if (!brcmf_is_apmode(ifp->vif)) { 2285 brcmf_dbg(CONN, "Swapping RX/TX MIC key\n"); 2286 memcpy(keybuf, &key->data[24], sizeof(keybuf)); 2287 memcpy(&key->data[24], &key->data[16], sizeof(keybuf)); 2288 memcpy(&key->data[16], keybuf, sizeof(keybuf)); 2289 } 2290 key->algo = CRYPTO_ALGO_TKIP; 2291 val = TKIP_ENABLED; 2292 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_TKIP\n"); 2293 break; 2294 case WLAN_CIPHER_SUITE_AES_CMAC: 2295 key->algo = CRYPTO_ALGO_AES_CCM; 2296 val = AES_ENABLED; 2297 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_AES_CMAC\n"); 2298 break; 2299 case WLAN_CIPHER_SUITE_CCMP: 2300 key->algo = CRYPTO_ALGO_AES_CCM; 2301 val = AES_ENABLED; 2302 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_CCMP\n"); 2303 break; 2304 default: 2305 brcmf_err("Invalid cipher (0x%x)\n", params->cipher); 2306 err = -EINVAL; 2307 goto done; 2308 } 2309 2310 err = send_key_to_dongle(ifp, key); 2311 if (ext_key || err) 2312 goto done; 2313 2314 err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec); 2315 if (err) { 2316 brcmf_err("get wsec error (%d)\n", err); 2317 goto done; 2318 } 2319 wsec |= val; 2320 err = brcmf_fil_bsscfg_int_set(ifp, "wsec", wsec); 2321 if (err) { 2322 brcmf_err("set wsec error (%d)\n", err); 2323 goto done; 2324 } 2325 2326 done: 2327 brcmf_dbg(TRACE, "Exit\n"); 2328 return err; 2329 } 2330 2331 static s32 2332 brcmf_cfg80211_get_key(struct wiphy *wiphy, struct net_device *ndev, u8 key_idx, 2333 bool pairwise, const u8 *mac_addr, void *cookie, 2334 void (*callback)(void *cookie, 2335 struct key_params *params)) 2336 { 2337 struct key_params params; 2338 struct brcmf_if *ifp = netdev_priv(ndev); 2339 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile; 2340 struct brcmf_cfg80211_security *sec; 2341 s32 wsec; 2342 s32 err = 0; 2343 2344 brcmf_dbg(TRACE, "Enter\n"); 2345 brcmf_dbg(CONN, "key index (%d)\n", key_idx); 2346 if (!check_vif_up(ifp->vif)) 2347 return -EIO; 2348 2349 memset(¶ms, 0, sizeof(params)); 2350 2351 err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec); 2352 if (err) { 2353 brcmf_err("WLC_GET_WSEC error (%d)\n", err); 2354 /* Ignore this error, may happen during DISASSOC */ 2355 err = -EAGAIN; 2356 goto done; 2357 } 2358 if (wsec & WEP_ENABLED) { 2359 sec = &profile->sec; 2360 if (sec->cipher_pairwise & WLAN_CIPHER_SUITE_WEP40) { 2361 params.cipher = WLAN_CIPHER_SUITE_WEP40; 2362 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP40\n"); 2363 } else if (sec->cipher_pairwise & WLAN_CIPHER_SUITE_WEP104) { 2364 params.cipher = WLAN_CIPHER_SUITE_WEP104; 2365 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP104\n"); 2366 } 2367 } else if (wsec & TKIP_ENABLED) { 2368 params.cipher = WLAN_CIPHER_SUITE_TKIP; 2369 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_TKIP\n"); 2370 } else if (wsec & AES_ENABLED) { 2371 params.cipher = WLAN_CIPHER_SUITE_AES_CMAC; 2372 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_AES_CMAC\n"); 2373 } else { 2374 brcmf_err("Invalid algo (0x%x)\n", wsec); 2375 err = -EINVAL; 2376 goto done; 2377 } 2378 callback(cookie, ¶ms); 2379 2380 done: 2381 brcmf_dbg(TRACE, "Exit\n"); 2382 return err; 2383 } 2384 2385 static s32 2386 brcmf_cfg80211_config_default_mgmt_key(struct wiphy *wiphy, 2387 struct net_device *ndev, u8 key_idx) 2388 { 2389 struct brcmf_if *ifp = netdev_priv(ndev); 2390 2391 brcmf_dbg(TRACE, "Enter key_idx %d\n", key_idx); 2392 2393 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MFP)) 2394 return 0; 2395 2396 brcmf_dbg(INFO, "Not supported\n"); 2397 2398 return -EOPNOTSUPP; 2399 } 2400 2401 static void 2402 brcmf_cfg80211_reconfigure_wep(struct brcmf_if *ifp) 2403 { 2404 s32 err; 2405 u8 key_idx; 2406 struct brcmf_wsec_key *key; 2407 s32 wsec; 2408 2409 for (key_idx = 0; key_idx < BRCMF_MAX_DEFAULT_KEYS; key_idx++) { 2410 key = &ifp->vif->profile.key[key_idx]; 2411 if ((key->algo == CRYPTO_ALGO_WEP1) || 2412 (key->algo == CRYPTO_ALGO_WEP128)) 2413 break; 2414 } 2415 if (key_idx == BRCMF_MAX_DEFAULT_KEYS) 2416 return; 2417 2418 err = send_key_to_dongle(ifp, key); 2419 if (err) { 2420 brcmf_err("Setting WEP key failed (%d)\n", err); 2421 return; 2422 } 2423 err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec); 2424 if (err) { 2425 brcmf_err("get wsec error (%d)\n", err); 2426 return; 2427 } 2428 wsec |= WEP_ENABLED; 2429 err = brcmf_fil_bsscfg_int_set(ifp, "wsec", wsec); 2430 if (err) 2431 brcmf_err("set wsec error (%d)\n", err); 2432 } 2433 2434 static void brcmf_convert_sta_flags(u32 fw_sta_flags, struct station_info *si) 2435 { 2436 struct nl80211_sta_flag_update *sfu; 2437 2438 brcmf_dbg(TRACE, "flags %08x\n", fw_sta_flags); 2439 si->filled |= BIT(NL80211_STA_INFO_STA_FLAGS); 2440 sfu = &si->sta_flags; 2441 sfu->mask = BIT(NL80211_STA_FLAG_WME) | 2442 BIT(NL80211_STA_FLAG_AUTHENTICATED) | 2443 BIT(NL80211_STA_FLAG_ASSOCIATED) | 2444 BIT(NL80211_STA_FLAG_AUTHORIZED); 2445 if (fw_sta_flags & BRCMF_STA_WME) 2446 sfu->set |= BIT(NL80211_STA_FLAG_WME); 2447 if (fw_sta_flags & BRCMF_STA_AUTHE) 2448 sfu->set |= BIT(NL80211_STA_FLAG_AUTHENTICATED); 2449 if (fw_sta_flags & BRCMF_STA_ASSOC) 2450 sfu->set |= BIT(NL80211_STA_FLAG_ASSOCIATED); 2451 if (fw_sta_flags & BRCMF_STA_AUTHO) 2452 sfu->set |= BIT(NL80211_STA_FLAG_AUTHORIZED); 2453 } 2454 2455 static void brcmf_fill_bss_param(struct brcmf_if *ifp, struct station_info *si) 2456 { 2457 struct { 2458 __le32 len; 2459 struct brcmf_bss_info_le bss_le; 2460 } *buf; 2461 u16 capability; 2462 int err; 2463 2464 buf = kzalloc(WL_BSS_INFO_MAX, GFP_KERNEL); 2465 if (!buf) 2466 return; 2467 2468 buf->len = cpu_to_le32(WL_BSS_INFO_MAX); 2469 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BSS_INFO, buf, 2470 WL_BSS_INFO_MAX); 2471 if (err) { 2472 brcmf_err("Failed to get bss info (%d)\n", err); 2473 goto out_kfree; 2474 } 2475 si->filled |= BIT(NL80211_STA_INFO_BSS_PARAM); 2476 si->bss_param.beacon_interval = le16_to_cpu(buf->bss_le.beacon_period); 2477 si->bss_param.dtim_period = buf->bss_le.dtim_period; 2478 capability = le16_to_cpu(buf->bss_le.capability); 2479 if (capability & IEEE80211_HT_STBC_PARAM_DUAL_CTS_PROT) 2480 si->bss_param.flags |= BSS_PARAM_FLAGS_CTS_PROT; 2481 if (capability & WLAN_CAPABILITY_SHORT_PREAMBLE) 2482 si->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_PREAMBLE; 2483 if (capability & WLAN_CAPABILITY_SHORT_SLOT_TIME) 2484 si->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_SLOT_TIME; 2485 2486 out_kfree: 2487 kfree(buf); 2488 } 2489 2490 static s32 2491 brcmf_cfg80211_get_station_ibss(struct brcmf_if *ifp, 2492 struct station_info *sinfo) 2493 { 2494 struct brcmf_scb_val_le scbval; 2495 struct brcmf_pktcnt_le pktcnt; 2496 s32 err; 2497 u32 rate; 2498 u32 rssi; 2499 2500 /* Get the current tx rate */ 2501 err = brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_RATE, &rate); 2502 if (err < 0) { 2503 brcmf_err("BRCMF_C_GET_RATE error (%d)\n", err); 2504 return err; 2505 } 2506 sinfo->filled |= BIT(NL80211_STA_INFO_TX_BITRATE); 2507 sinfo->txrate.legacy = rate * 5; 2508 2509 memset(&scbval, 0, sizeof(scbval)); 2510 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_RSSI, &scbval, 2511 sizeof(scbval)); 2512 if (err) { 2513 brcmf_err("BRCMF_C_GET_RSSI error (%d)\n", err); 2514 return err; 2515 } 2516 rssi = le32_to_cpu(scbval.val); 2517 sinfo->filled |= BIT(NL80211_STA_INFO_SIGNAL); 2518 sinfo->signal = rssi; 2519 2520 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_GET_PKTCNTS, &pktcnt, 2521 sizeof(pktcnt)); 2522 if (err) { 2523 brcmf_err("BRCMF_C_GET_GET_PKTCNTS error (%d)\n", err); 2524 return err; 2525 } 2526 sinfo->filled |= BIT(NL80211_STA_INFO_RX_PACKETS) | 2527 BIT(NL80211_STA_INFO_RX_DROP_MISC) | 2528 BIT(NL80211_STA_INFO_TX_PACKETS) | 2529 BIT(NL80211_STA_INFO_TX_FAILED); 2530 sinfo->rx_packets = le32_to_cpu(pktcnt.rx_good_pkt); 2531 sinfo->rx_dropped_misc = le32_to_cpu(pktcnt.rx_bad_pkt); 2532 sinfo->tx_packets = le32_to_cpu(pktcnt.tx_good_pkt); 2533 sinfo->tx_failed = le32_to_cpu(pktcnt.tx_bad_pkt); 2534 2535 return 0; 2536 } 2537 2538 static s32 2539 brcmf_cfg80211_get_station(struct wiphy *wiphy, struct net_device *ndev, 2540 const u8 *mac, struct station_info *sinfo) 2541 { 2542 struct brcmf_if *ifp = netdev_priv(ndev); 2543 struct brcmf_scb_val_le scb_val; 2544 s32 err = 0; 2545 struct brcmf_sta_info_le sta_info_le; 2546 u32 sta_flags; 2547 u32 is_tdls_peer; 2548 s32 total_rssi; 2549 s32 count_rssi; 2550 int rssi; 2551 u32 i; 2552 2553 brcmf_dbg(TRACE, "Enter, MAC %pM\n", mac); 2554 if (!check_vif_up(ifp->vif)) 2555 return -EIO; 2556 2557 if (brcmf_is_ibssmode(ifp->vif)) 2558 return brcmf_cfg80211_get_station_ibss(ifp, sinfo); 2559 2560 memset(&sta_info_le, 0, sizeof(sta_info_le)); 2561 memcpy(&sta_info_le, mac, ETH_ALEN); 2562 err = brcmf_fil_iovar_data_get(ifp, "tdls_sta_info", 2563 &sta_info_le, 2564 sizeof(sta_info_le)); 2565 is_tdls_peer = !err; 2566 if (err) { 2567 err = brcmf_fil_iovar_data_get(ifp, "sta_info", 2568 &sta_info_le, 2569 sizeof(sta_info_le)); 2570 if (err < 0) { 2571 brcmf_err("GET STA INFO failed, %d\n", err); 2572 goto done; 2573 } 2574 } 2575 brcmf_dbg(TRACE, "version %d\n", le16_to_cpu(sta_info_le.ver)); 2576 sinfo->filled = BIT(NL80211_STA_INFO_INACTIVE_TIME); 2577 sinfo->inactive_time = le32_to_cpu(sta_info_le.idle) * 1000; 2578 sta_flags = le32_to_cpu(sta_info_le.flags); 2579 brcmf_convert_sta_flags(sta_flags, sinfo); 2580 sinfo->sta_flags.mask |= BIT(NL80211_STA_FLAG_TDLS_PEER); 2581 if (is_tdls_peer) 2582 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_TDLS_PEER); 2583 else 2584 sinfo->sta_flags.set &= ~BIT(NL80211_STA_FLAG_TDLS_PEER); 2585 if (sta_flags & BRCMF_STA_ASSOC) { 2586 sinfo->filled |= BIT(NL80211_STA_INFO_CONNECTED_TIME); 2587 sinfo->connected_time = le32_to_cpu(sta_info_le.in); 2588 brcmf_fill_bss_param(ifp, sinfo); 2589 } 2590 if (sta_flags & BRCMF_STA_SCBSTATS) { 2591 sinfo->filled |= BIT(NL80211_STA_INFO_TX_FAILED); 2592 sinfo->tx_failed = le32_to_cpu(sta_info_le.tx_failures); 2593 sinfo->filled |= BIT(NL80211_STA_INFO_TX_PACKETS); 2594 sinfo->tx_packets = le32_to_cpu(sta_info_le.tx_pkts); 2595 sinfo->tx_packets += le32_to_cpu(sta_info_le.tx_mcast_pkts); 2596 sinfo->filled |= BIT(NL80211_STA_INFO_RX_PACKETS); 2597 sinfo->rx_packets = le32_to_cpu(sta_info_le.rx_ucast_pkts); 2598 sinfo->rx_packets += le32_to_cpu(sta_info_le.rx_mcast_pkts); 2599 if (sinfo->tx_packets) { 2600 sinfo->filled |= BIT(NL80211_STA_INFO_TX_BITRATE); 2601 sinfo->txrate.legacy = 2602 le32_to_cpu(sta_info_le.tx_rate) / 100; 2603 } 2604 if (sinfo->rx_packets) { 2605 sinfo->filled |= BIT(NL80211_STA_INFO_RX_BITRATE); 2606 sinfo->rxrate.legacy = 2607 le32_to_cpu(sta_info_le.rx_rate) / 100; 2608 } 2609 if (le16_to_cpu(sta_info_le.ver) >= 4) { 2610 sinfo->filled |= BIT(NL80211_STA_INFO_TX_BYTES); 2611 sinfo->tx_bytes = le64_to_cpu(sta_info_le.tx_tot_bytes); 2612 sinfo->filled |= BIT(NL80211_STA_INFO_RX_BYTES); 2613 sinfo->rx_bytes = le64_to_cpu(sta_info_le.rx_tot_bytes); 2614 } 2615 total_rssi = 0; 2616 count_rssi = 0; 2617 for (i = 0; i < BRCMF_ANT_MAX; i++) { 2618 if (sta_info_le.rssi[i]) { 2619 sinfo->chain_signal_avg[count_rssi] = 2620 sta_info_le.rssi[i]; 2621 sinfo->chain_signal[count_rssi] = 2622 sta_info_le.rssi[i]; 2623 total_rssi += sta_info_le.rssi[i]; 2624 count_rssi++; 2625 } 2626 } 2627 if (count_rssi) { 2628 sinfo->filled |= BIT(NL80211_STA_INFO_CHAIN_SIGNAL); 2629 sinfo->chains = count_rssi; 2630 2631 sinfo->filled |= BIT(NL80211_STA_INFO_SIGNAL); 2632 total_rssi /= count_rssi; 2633 sinfo->signal = total_rssi; 2634 } else if (test_bit(BRCMF_VIF_STATUS_CONNECTED, 2635 &ifp->vif->sme_state)) { 2636 memset(&scb_val, 0, sizeof(scb_val)); 2637 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_RSSI, 2638 &scb_val, sizeof(scb_val)); 2639 if (err) { 2640 brcmf_err("Could not get rssi (%d)\n", err); 2641 goto done; 2642 } else { 2643 rssi = le32_to_cpu(scb_val.val); 2644 sinfo->filled |= BIT(NL80211_STA_INFO_SIGNAL); 2645 sinfo->signal = rssi; 2646 brcmf_dbg(CONN, "RSSI %d dBm\n", rssi); 2647 } 2648 } 2649 } 2650 done: 2651 brcmf_dbg(TRACE, "Exit\n"); 2652 return err; 2653 } 2654 2655 static int 2656 brcmf_cfg80211_dump_station(struct wiphy *wiphy, struct net_device *ndev, 2657 int idx, u8 *mac, struct station_info *sinfo) 2658 { 2659 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 2660 struct brcmf_if *ifp = netdev_priv(ndev); 2661 s32 err; 2662 2663 brcmf_dbg(TRACE, "Enter, idx %d\n", idx); 2664 2665 if (idx == 0) { 2666 cfg->assoclist.count = cpu_to_le32(BRCMF_MAX_ASSOCLIST); 2667 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_ASSOCLIST, 2668 &cfg->assoclist, 2669 sizeof(cfg->assoclist)); 2670 if (err) { 2671 brcmf_err("BRCMF_C_GET_ASSOCLIST unsupported, err=%d\n", 2672 err); 2673 cfg->assoclist.count = 0; 2674 return -EOPNOTSUPP; 2675 } 2676 } 2677 if (idx < le32_to_cpu(cfg->assoclist.count)) { 2678 memcpy(mac, cfg->assoclist.mac[idx], ETH_ALEN); 2679 return brcmf_cfg80211_get_station(wiphy, ndev, mac, sinfo); 2680 } 2681 return -ENOENT; 2682 } 2683 2684 static s32 2685 brcmf_cfg80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *ndev, 2686 bool enabled, s32 timeout) 2687 { 2688 s32 pm; 2689 s32 err = 0; 2690 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 2691 struct brcmf_if *ifp = netdev_priv(ndev); 2692 2693 brcmf_dbg(TRACE, "Enter\n"); 2694 2695 /* 2696 * Powersave enable/disable request is coming from the 2697 * cfg80211 even before the interface is up. In that 2698 * scenario, driver will be storing the power save 2699 * preference in cfg struct to apply this to 2700 * FW later while initializing the dongle 2701 */ 2702 cfg->pwr_save = enabled; 2703 if (!check_vif_up(ifp->vif)) { 2704 2705 brcmf_dbg(INFO, "Device is not ready, storing the value in cfg_info struct\n"); 2706 goto done; 2707 } 2708 2709 pm = enabled ? PM_FAST : PM_OFF; 2710 /* Do not enable the power save after assoc if it is a p2p interface */ 2711 if (ifp->vif->wdev.iftype == NL80211_IFTYPE_P2P_CLIENT) { 2712 brcmf_dbg(INFO, "Do not enable power save for P2P clients\n"); 2713 pm = PM_OFF; 2714 } 2715 brcmf_dbg(INFO, "power save %s\n", (pm ? "enabled" : "disabled")); 2716 2717 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM, pm); 2718 if (err) { 2719 if (err == -ENODEV) 2720 brcmf_err("net_device is not ready yet\n"); 2721 else 2722 brcmf_err("error (%d)\n", err); 2723 } 2724 done: 2725 brcmf_dbg(TRACE, "Exit\n"); 2726 return err; 2727 } 2728 2729 static s32 brcmf_inform_single_bss(struct brcmf_cfg80211_info *cfg, 2730 struct brcmf_bss_info_le *bi) 2731 { 2732 struct wiphy *wiphy = cfg_to_wiphy(cfg); 2733 struct ieee80211_channel *notify_channel; 2734 struct cfg80211_bss *bss; 2735 struct ieee80211_supported_band *band; 2736 struct brcmu_chan ch; 2737 u16 channel; 2738 u32 freq; 2739 u16 notify_capability; 2740 u16 notify_interval; 2741 u8 *notify_ie; 2742 size_t notify_ielen; 2743 s32 notify_signal; 2744 2745 if (le32_to_cpu(bi->length) > WL_BSS_INFO_MAX) { 2746 brcmf_err("Bss info is larger than buffer. Discarding\n"); 2747 return 0; 2748 } 2749 2750 if (!bi->ctl_ch) { 2751 ch.chspec = le16_to_cpu(bi->chanspec); 2752 cfg->d11inf.decchspec(&ch); 2753 bi->ctl_ch = ch.control_ch_num; 2754 } 2755 channel = bi->ctl_ch; 2756 2757 if (channel <= CH_MAX_2G_CHANNEL) 2758 band = wiphy->bands[NL80211_BAND_2GHZ]; 2759 else 2760 band = wiphy->bands[NL80211_BAND_5GHZ]; 2761 2762 freq = ieee80211_channel_to_frequency(channel, band->band); 2763 notify_channel = ieee80211_get_channel(wiphy, freq); 2764 2765 notify_capability = le16_to_cpu(bi->capability); 2766 notify_interval = le16_to_cpu(bi->beacon_period); 2767 notify_ie = (u8 *)bi + le16_to_cpu(bi->ie_offset); 2768 notify_ielen = le32_to_cpu(bi->ie_length); 2769 notify_signal = (s16)le16_to_cpu(bi->RSSI) * 100; 2770 2771 brcmf_dbg(CONN, "bssid: %pM\n", bi->BSSID); 2772 brcmf_dbg(CONN, "Channel: %d(%d)\n", channel, freq); 2773 brcmf_dbg(CONN, "Capability: %X\n", notify_capability); 2774 brcmf_dbg(CONN, "Beacon interval: %d\n", notify_interval); 2775 brcmf_dbg(CONN, "Signal: %d\n", notify_signal); 2776 2777 bss = cfg80211_inform_bss(wiphy, notify_channel, 2778 CFG80211_BSS_FTYPE_UNKNOWN, 2779 (const u8 *)bi->BSSID, 2780 0, notify_capability, 2781 notify_interval, notify_ie, 2782 notify_ielen, notify_signal, 2783 GFP_KERNEL); 2784 2785 if (!bss) 2786 return -ENOMEM; 2787 2788 cfg80211_put_bss(wiphy, bss); 2789 2790 return 0; 2791 } 2792 2793 static struct brcmf_bss_info_le * 2794 next_bss_le(struct brcmf_scan_results *list, struct brcmf_bss_info_le *bss) 2795 { 2796 if (bss == NULL) 2797 return list->bss_info_le; 2798 return (struct brcmf_bss_info_le *)((unsigned long)bss + 2799 le32_to_cpu(bss->length)); 2800 } 2801 2802 static s32 brcmf_inform_bss(struct brcmf_cfg80211_info *cfg) 2803 { 2804 struct brcmf_scan_results *bss_list; 2805 struct brcmf_bss_info_le *bi = NULL; /* must be initialized */ 2806 s32 err = 0; 2807 int i; 2808 2809 bss_list = (struct brcmf_scan_results *)cfg->escan_info.escan_buf; 2810 if (bss_list->count != 0 && 2811 bss_list->version != BRCMF_BSS_INFO_VERSION) { 2812 brcmf_err("Version %d != WL_BSS_INFO_VERSION\n", 2813 bss_list->version); 2814 return -EOPNOTSUPP; 2815 } 2816 brcmf_dbg(SCAN, "scanned AP count (%d)\n", bss_list->count); 2817 for (i = 0; i < bss_list->count; i++) { 2818 bi = next_bss_le(bss_list, bi); 2819 err = brcmf_inform_single_bss(cfg, bi); 2820 if (err) 2821 break; 2822 } 2823 return err; 2824 } 2825 2826 static s32 brcmf_inform_ibss(struct brcmf_cfg80211_info *cfg, 2827 struct net_device *ndev, const u8 *bssid) 2828 { 2829 struct wiphy *wiphy = cfg_to_wiphy(cfg); 2830 struct ieee80211_channel *notify_channel; 2831 struct brcmf_bss_info_le *bi = NULL; 2832 struct ieee80211_supported_band *band; 2833 struct cfg80211_bss *bss; 2834 struct brcmu_chan ch; 2835 u8 *buf = NULL; 2836 s32 err = 0; 2837 u32 freq; 2838 u16 notify_capability; 2839 u16 notify_interval; 2840 u8 *notify_ie; 2841 size_t notify_ielen; 2842 s32 notify_signal; 2843 2844 brcmf_dbg(TRACE, "Enter\n"); 2845 2846 buf = kzalloc(WL_BSS_INFO_MAX, GFP_KERNEL); 2847 if (buf == NULL) { 2848 err = -ENOMEM; 2849 goto CleanUp; 2850 } 2851 2852 *(__le32 *)buf = cpu_to_le32(WL_BSS_INFO_MAX); 2853 2854 err = brcmf_fil_cmd_data_get(netdev_priv(ndev), BRCMF_C_GET_BSS_INFO, 2855 buf, WL_BSS_INFO_MAX); 2856 if (err) { 2857 brcmf_err("WLC_GET_BSS_INFO failed: %d\n", err); 2858 goto CleanUp; 2859 } 2860 2861 bi = (struct brcmf_bss_info_le *)(buf + 4); 2862 2863 ch.chspec = le16_to_cpu(bi->chanspec); 2864 cfg->d11inf.decchspec(&ch); 2865 2866 if (ch.band == BRCMU_CHAN_BAND_2G) 2867 band = wiphy->bands[NL80211_BAND_2GHZ]; 2868 else 2869 band = wiphy->bands[NL80211_BAND_5GHZ]; 2870 2871 freq = ieee80211_channel_to_frequency(ch.control_ch_num, band->band); 2872 cfg->channel = freq; 2873 notify_channel = ieee80211_get_channel(wiphy, freq); 2874 2875 notify_capability = le16_to_cpu(bi->capability); 2876 notify_interval = le16_to_cpu(bi->beacon_period); 2877 notify_ie = (u8 *)bi + le16_to_cpu(bi->ie_offset); 2878 notify_ielen = le32_to_cpu(bi->ie_length); 2879 notify_signal = (s16)le16_to_cpu(bi->RSSI) * 100; 2880 2881 brcmf_dbg(CONN, "channel: %d(%d)\n", ch.control_ch_num, freq); 2882 brcmf_dbg(CONN, "capability: %X\n", notify_capability); 2883 brcmf_dbg(CONN, "beacon interval: %d\n", notify_interval); 2884 brcmf_dbg(CONN, "signal: %d\n", notify_signal); 2885 2886 bss = cfg80211_inform_bss(wiphy, notify_channel, 2887 CFG80211_BSS_FTYPE_UNKNOWN, bssid, 0, 2888 notify_capability, notify_interval, 2889 notify_ie, notify_ielen, notify_signal, 2890 GFP_KERNEL); 2891 2892 if (!bss) { 2893 err = -ENOMEM; 2894 goto CleanUp; 2895 } 2896 2897 cfg80211_put_bss(wiphy, bss); 2898 2899 CleanUp: 2900 2901 kfree(buf); 2902 2903 brcmf_dbg(TRACE, "Exit\n"); 2904 2905 return err; 2906 } 2907 2908 static s32 brcmf_update_bss_info(struct brcmf_cfg80211_info *cfg, 2909 struct brcmf_if *ifp) 2910 { 2911 struct brcmf_bss_info_le *bi; 2912 const struct brcmf_tlv *tim; 2913 u16 beacon_interval; 2914 u8 dtim_period; 2915 size_t ie_len; 2916 u8 *ie; 2917 s32 err = 0; 2918 2919 brcmf_dbg(TRACE, "Enter\n"); 2920 if (brcmf_is_ibssmode(ifp->vif)) 2921 return err; 2922 2923 *(__le32 *)cfg->extra_buf = cpu_to_le32(WL_EXTRA_BUF_MAX); 2924 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BSS_INFO, 2925 cfg->extra_buf, WL_EXTRA_BUF_MAX); 2926 if (err) { 2927 brcmf_err("Could not get bss info %d\n", err); 2928 goto update_bss_info_out; 2929 } 2930 2931 bi = (struct brcmf_bss_info_le *)(cfg->extra_buf + 4); 2932 err = brcmf_inform_single_bss(cfg, bi); 2933 if (err) 2934 goto update_bss_info_out; 2935 2936 ie = ((u8 *)bi) + le16_to_cpu(bi->ie_offset); 2937 ie_len = le32_to_cpu(bi->ie_length); 2938 beacon_interval = le16_to_cpu(bi->beacon_period); 2939 2940 tim = brcmf_parse_tlvs(ie, ie_len, WLAN_EID_TIM); 2941 if (tim) 2942 dtim_period = tim->data[1]; 2943 else { 2944 /* 2945 * active scan was done so we could not get dtim 2946 * information out of probe response. 2947 * so we speficially query dtim information to dongle. 2948 */ 2949 u32 var; 2950 err = brcmf_fil_iovar_int_get(ifp, "dtim_assoc", &var); 2951 if (err) { 2952 brcmf_err("wl dtim_assoc failed (%d)\n", err); 2953 goto update_bss_info_out; 2954 } 2955 dtim_period = (u8)var; 2956 } 2957 2958 update_bss_info_out: 2959 brcmf_dbg(TRACE, "Exit"); 2960 return err; 2961 } 2962 2963 void brcmf_abort_scanning(struct brcmf_cfg80211_info *cfg) 2964 { 2965 struct escan_info *escan = &cfg->escan_info; 2966 2967 set_bit(BRCMF_SCAN_STATUS_ABORT, &cfg->scan_status); 2968 if (cfg->int_escan_map || cfg->scan_request) { 2969 escan->escan_state = WL_ESCAN_STATE_IDLE; 2970 brcmf_notify_escan_complete(cfg, escan->ifp, true, true); 2971 } 2972 clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status); 2973 clear_bit(BRCMF_SCAN_STATUS_ABORT, &cfg->scan_status); 2974 } 2975 2976 static void brcmf_cfg80211_escan_timeout_worker(struct work_struct *work) 2977 { 2978 struct brcmf_cfg80211_info *cfg = 2979 container_of(work, struct brcmf_cfg80211_info, 2980 escan_timeout_work); 2981 2982 brcmf_inform_bss(cfg); 2983 brcmf_notify_escan_complete(cfg, cfg->escan_info.ifp, true, true); 2984 } 2985 2986 static void brcmf_escan_timeout(struct timer_list *t) 2987 { 2988 struct brcmf_cfg80211_info *cfg = 2989 from_timer(cfg, t, escan_timeout); 2990 2991 if (cfg->int_escan_map || cfg->scan_request) { 2992 brcmf_err("timer expired\n"); 2993 schedule_work(&cfg->escan_timeout_work); 2994 } 2995 } 2996 2997 static s32 2998 brcmf_compare_update_same_bss(struct brcmf_cfg80211_info *cfg, 2999 struct brcmf_bss_info_le *bss, 3000 struct brcmf_bss_info_le *bss_info_le) 3001 { 3002 struct brcmu_chan ch_bss, ch_bss_info_le; 3003 3004 ch_bss.chspec = le16_to_cpu(bss->chanspec); 3005 cfg->d11inf.decchspec(&ch_bss); 3006 ch_bss_info_le.chspec = le16_to_cpu(bss_info_le->chanspec); 3007 cfg->d11inf.decchspec(&ch_bss_info_le); 3008 3009 if (!memcmp(&bss_info_le->BSSID, &bss->BSSID, ETH_ALEN) && 3010 ch_bss.band == ch_bss_info_le.band && 3011 bss_info_le->SSID_len == bss->SSID_len && 3012 !memcmp(bss_info_le->SSID, bss->SSID, bss_info_le->SSID_len)) { 3013 if ((bss->flags & BRCMF_BSS_RSSI_ON_CHANNEL) == 3014 (bss_info_le->flags & BRCMF_BSS_RSSI_ON_CHANNEL)) { 3015 s16 bss_rssi = le16_to_cpu(bss->RSSI); 3016 s16 bss_info_rssi = le16_to_cpu(bss_info_le->RSSI); 3017 3018 /* preserve max RSSI if the measurements are 3019 * both on-channel or both off-channel 3020 */ 3021 if (bss_info_rssi > bss_rssi) 3022 bss->RSSI = bss_info_le->RSSI; 3023 } else if ((bss->flags & BRCMF_BSS_RSSI_ON_CHANNEL) && 3024 (bss_info_le->flags & BRCMF_BSS_RSSI_ON_CHANNEL) == 0) { 3025 /* preserve the on-channel rssi measurement 3026 * if the new measurement is off channel 3027 */ 3028 bss->RSSI = bss_info_le->RSSI; 3029 bss->flags |= BRCMF_BSS_RSSI_ON_CHANNEL; 3030 } 3031 return 1; 3032 } 3033 return 0; 3034 } 3035 3036 static s32 3037 brcmf_cfg80211_escan_handler(struct brcmf_if *ifp, 3038 const struct brcmf_event_msg *e, void *data) 3039 { 3040 struct brcmf_cfg80211_info *cfg = ifp->drvr->config; 3041 s32 status; 3042 struct brcmf_escan_result_le *escan_result_le; 3043 u32 escan_buflen; 3044 struct brcmf_bss_info_le *bss_info_le; 3045 struct brcmf_bss_info_le *bss = NULL; 3046 u32 bi_length; 3047 struct brcmf_scan_results *list; 3048 u32 i; 3049 bool aborted; 3050 3051 status = e->status; 3052 3053 if (status == BRCMF_E_STATUS_ABORT) 3054 goto exit; 3055 3056 if (!test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) { 3057 brcmf_err("scan not ready, bsscfgidx=%d\n", ifp->bsscfgidx); 3058 return -EPERM; 3059 } 3060 3061 if (status == BRCMF_E_STATUS_PARTIAL) { 3062 brcmf_dbg(SCAN, "ESCAN Partial result\n"); 3063 if (e->datalen < sizeof(*escan_result_le)) { 3064 brcmf_err("invalid event data length\n"); 3065 goto exit; 3066 } 3067 escan_result_le = (struct brcmf_escan_result_le *) data; 3068 if (!escan_result_le) { 3069 brcmf_err("Invalid escan result (NULL pointer)\n"); 3070 goto exit; 3071 } 3072 escan_buflen = le32_to_cpu(escan_result_le->buflen); 3073 if (escan_buflen > BRCMF_ESCAN_BUF_SIZE || 3074 escan_buflen > e->datalen || 3075 escan_buflen < sizeof(*escan_result_le)) { 3076 brcmf_err("Invalid escan buffer length: %d\n", 3077 escan_buflen); 3078 goto exit; 3079 } 3080 if (le16_to_cpu(escan_result_le->bss_count) != 1) { 3081 brcmf_err("Invalid bss_count %d: ignoring\n", 3082 escan_result_le->bss_count); 3083 goto exit; 3084 } 3085 bss_info_le = &escan_result_le->bss_info_le; 3086 3087 if (brcmf_p2p_scan_finding_common_channel(cfg, bss_info_le)) 3088 goto exit; 3089 3090 if (!cfg->int_escan_map && !cfg->scan_request) { 3091 brcmf_dbg(SCAN, "result without cfg80211 request\n"); 3092 goto exit; 3093 } 3094 3095 bi_length = le32_to_cpu(bss_info_le->length); 3096 if (bi_length != escan_buflen - WL_ESCAN_RESULTS_FIXED_SIZE) { 3097 brcmf_err("Ignoring invalid bss_info length: %d\n", 3098 bi_length); 3099 goto exit; 3100 } 3101 3102 if (!(cfg_to_wiphy(cfg)->interface_modes & 3103 BIT(NL80211_IFTYPE_ADHOC))) { 3104 if (le16_to_cpu(bss_info_le->capability) & 3105 WLAN_CAPABILITY_IBSS) { 3106 brcmf_err("Ignoring IBSS result\n"); 3107 goto exit; 3108 } 3109 } 3110 3111 list = (struct brcmf_scan_results *) 3112 cfg->escan_info.escan_buf; 3113 if (bi_length > BRCMF_ESCAN_BUF_SIZE - list->buflen) { 3114 brcmf_err("Buffer is too small: ignoring\n"); 3115 goto exit; 3116 } 3117 3118 for (i = 0; i < list->count; i++) { 3119 bss = bss ? (struct brcmf_bss_info_le *) 3120 ((unsigned char *)bss + 3121 le32_to_cpu(bss->length)) : list->bss_info_le; 3122 if (brcmf_compare_update_same_bss(cfg, bss, 3123 bss_info_le)) 3124 goto exit; 3125 } 3126 memcpy(&cfg->escan_info.escan_buf[list->buflen], bss_info_le, 3127 bi_length); 3128 list->version = le32_to_cpu(bss_info_le->version); 3129 list->buflen += bi_length; 3130 list->count++; 3131 } else { 3132 cfg->escan_info.escan_state = WL_ESCAN_STATE_IDLE; 3133 if (brcmf_p2p_scan_finding_common_channel(cfg, NULL)) 3134 goto exit; 3135 if (cfg->int_escan_map || cfg->scan_request) { 3136 brcmf_inform_bss(cfg); 3137 aborted = status != BRCMF_E_STATUS_SUCCESS; 3138 brcmf_notify_escan_complete(cfg, ifp, aborted, false); 3139 } else 3140 brcmf_dbg(SCAN, "Ignored scan complete result 0x%x\n", 3141 status); 3142 } 3143 exit: 3144 return 0; 3145 } 3146 3147 static void brcmf_init_escan(struct brcmf_cfg80211_info *cfg) 3148 { 3149 brcmf_fweh_register(cfg->pub, BRCMF_E_ESCAN_RESULT, 3150 brcmf_cfg80211_escan_handler); 3151 cfg->escan_info.escan_state = WL_ESCAN_STATE_IDLE; 3152 /* Init scan_timeout timer */ 3153 timer_setup(&cfg->escan_timeout, brcmf_escan_timeout, 0); 3154 INIT_WORK(&cfg->escan_timeout_work, 3155 brcmf_cfg80211_escan_timeout_worker); 3156 } 3157 3158 static struct cfg80211_scan_request * 3159 brcmf_alloc_internal_escan_request(struct wiphy *wiphy, u32 n_netinfo) { 3160 struct cfg80211_scan_request *req; 3161 size_t req_size; 3162 3163 req_size = sizeof(*req) + 3164 n_netinfo * sizeof(req->channels[0]) + 3165 n_netinfo * sizeof(*req->ssids); 3166 3167 req = kzalloc(req_size, GFP_KERNEL); 3168 if (req) { 3169 req->wiphy = wiphy; 3170 req->ssids = (void *)(&req->channels[0]) + 3171 n_netinfo * sizeof(req->channels[0]); 3172 } 3173 return req; 3174 } 3175 3176 static int brcmf_internal_escan_add_info(struct cfg80211_scan_request *req, 3177 u8 *ssid, u8 ssid_len, u8 channel) 3178 { 3179 struct ieee80211_channel *chan; 3180 enum nl80211_band band; 3181 int freq, i; 3182 3183 if (channel <= CH_MAX_2G_CHANNEL) 3184 band = NL80211_BAND_2GHZ; 3185 else 3186 band = NL80211_BAND_5GHZ; 3187 3188 freq = ieee80211_channel_to_frequency(channel, band); 3189 if (!freq) 3190 return -EINVAL; 3191 3192 chan = ieee80211_get_channel(req->wiphy, freq); 3193 if (!chan) 3194 return -EINVAL; 3195 3196 for (i = 0; i < req->n_channels; i++) { 3197 if (req->channels[i] == chan) 3198 break; 3199 } 3200 if (i == req->n_channels) 3201 req->channels[req->n_channels++] = chan; 3202 3203 for (i = 0; i < req->n_ssids; i++) { 3204 if (req->ssids[i].ssid_len == ssid_len && 3205 !memcmp(req->ssids[i].ssid, ssid, ssid_len)) 3206 break; 3207 } 3208 if (i == req->n_ssids) { 3209 memcpy(req->ssids[req->n_ssids].ssid, ssid, ssid_len); 3210 req->ssids[req->n_ssids++].ssid_len = ssid_len; 3211 } 3212 return 0; 3213 } 3214 3215 static int brcmf_start_internal_escan(struct brcmf_if *ifp, u32 fwmap, 3216 struct cfg80211_scan_request *request) 3217 { 3218 struct brcmf_cfg80211_info *cfg = ifp->drvr->config; 3219 int err; 3220 3221 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) { 3222 if (cfg->int_escan_map) 3223 brcmf_dbg(SCAN, "aborting internal scan: map=%u\n", 3224 cfg->int_escan_map); 3225 /* Abort any on-going scan */ 3226 brcmf_abort_scanning(cfg); 3227 } 3228 3229 brcmf_dbg(SCAN, "start internal scan: map=%u\n", fwmap); 3230 set_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status); 3231 cfg->escan_info.run = brcmf_run_escan; 3232 err = brcmf_do_escan(ifp, request); 3233 if (err) { 3234 clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status); 3235 return err; 3236 } 3237 cfg->int_escan_map = fwmap; 3238 return 0; 3239 } 3240 3241 static struct brcmf_pno_net_info_le * 3242 brcmf_get_netinfo_array(struct brcmf_pno_scanresults_le *pfn_v1) 3243 { 3244 struct brcmf_pno_scanresults_v2_le *pfn_v2; 3245 struct brcmf_pno_net_info_le *netinfo; 3246 3247 switch (pfn_v1->version) { 3248 default: 3249 WARN_ON(1); 3250 /* fall-thru */ 3251 case cpu_to_le32(1): 3252 netinfo = (struct brcmf_pno_net_info_le *)(pfn_v1 + 1); 3253 break; 3254 case cpu_to_le32(2): 3255 pfn_v2 = (struct brcmf_pno_scanresults_v2_le *)pfn_v1; 3256 netinfo = (struct brcmf_pno_net_info_le *)(pfn_v2 + 1); 3257 break; 3258 } 3259 3260 return netinfo; 3261 } 3262 3263 /* PFN result doesn't have all the info which are required by the supplicant 3264 * (For e.g IEs) Do a target Escan so that sched scan results are reported 3265 * via wl_inform_single_bss in the required format. Escan does require the 3266 * scan request in the form of cfg80211_scan_request. For timebeing, create 3267 * cfg80211_scan_request one out of the received PNO event. 3268 */ 3269 static s32 3270 brcmf_notify_sched_scan_results(struct brcmf_if *ifp, 3271 const struct brcmf_event_msg *e, void *data) 3272 { 3273 struct brcmf_cfg80211_info *cfg = ifp->drvr->config; 3274 struct brcmf_pno_net_info_le *netinfo, *netinfo_start; 3275 struct cfg80211_scan_request *request = NULL; 3276 struct wiphy *wiphy = cfg_to_wiphy(cfg); 3277 int i, err = 0; 3278 struct brcmf_pno_scanresults_le *pfn_result; 3279 u32 bucket_map; 3280 u32 result_count; 3281 u32 status; 3282 u32 datalen; 3283 3284 brcmf_dbg(SCAN, "Enter\n"); 3285 3286 if (e->datalen < (sizeof(*pfn_result) + sizeof(*netinfo))) { 3287 brcmf_dbg(SCAN, "Event data to small. Ignore\n"); 3288 return 0; 3289 } 3290 3291 if (e->event_code == BRCMF_E_PFN_NET_LOST) { 3292 brcmf_dbg(SCAN, "PFN NET LOST event. Do Nothing\n"); 3293 return 0; 3294 } 3295 3296 pfn_result = (struct brcmf_pno_scanresults_le *)data; 3297 result_count = le32_to_cpu(pfn_result->count); 3298 status = le32_to_cpu(pfn_result->status); 3299 3300 /* PFN event is limited to fit 512 bytes so we may get 3301 * multiple NET_FOUND events. For now place a warning here. 3302 */ 3303 WARN_ON(status != BRCMF_PNO_SCAN_COMPLETE); 3304 brcmf_dbg(SCAN, "PFN NET FOUND event. count: %d\n", result_count); 3305 if (!result_count) { 3306 brcmf_err("FALSE PNO Event. (pfn_count == 0)\n"); 3307 goto out_err; 3308 } 3309 3310 netinfo_start = brcmf_get_netinfo_array(pfn_result); 3311 datalen = e->datalen - ((void *)netinfo_start - (void *)pfn_result); 3312 if (datalen < result_count * sizeof(*netinfo)) { 3313 brcmf_err("insufficient event data\n"); 3314 goto out_err; 3315 } 3316 3317 request = brcmf_alloc_internal_escan_request(wiphy, 3318 result_count); 3319 if (!request) { 3320 err = -ENOMEM; 3321 goto out_err; 3322 } 3323 3324 bucket_map = 0; 3325 for (i = 0; i < result_count; i++) { 3326 netinfo = &netinfo_start[i]; 3327 3328 if (netinfo->SSID_len > IEEE80211_MAX_SSID_LEN) 3329 netinfo->SSID_len = IEEE80211_MAX_SSID_LEN; 3330 brcmf_dbg(SCAN, "SSID:%.32s Channel:%d\n", 3331 netinfo->SSID, netinfo->channel); 3332 bucket_map |= brcmf_pno_get_bucket_map(cfg->pno, netinfo); 3333 err = brcmf_internal_escan_add_info(request, 3334 netinfo->SSID, 3335 netinfo->SSID_len, 3336 netinfo->channel); 3337 if (err) 3338 goto out_err; 3339 } 3340 3341 if (!bucket_map) 3342 goto free_req; 3343 3344 err = brcmf_start_internal_escan(ifp, bucket_map, request); 3345 if (!err) 3346 goto free_req; 3347 3348 out_err: 3349 cfg80211_sched_scan_stopped(wiphy, 0); 3350 free_req: 3351 kfree(request); 3352 return err; 3353 } 3354 3355 static int 3356 brcmf_cfg80211_sched_scan_start(struct wiphy *wiphy, 3357 struct net_device *ndev, 3358 struct cfg80211_sched_scan_request *req) 3359 { 3360 struct brcmf_if *ifp = netdev_priv(ndev); 3361 struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy); 3362 3363 brcmf_dbg(SCAN, "Enter: n_match_sets=%d n_ssids=%d\n", 3364 req->n_match_sets, req->n_ssids); 3365 3366 if (test_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status)) { 3367 brcmf_err("Scanning suppressed: status=%lu\n", 3368 cfg->scan_status); 3369 return -EAGAIN; 3370 } 3371 3372 if (req->n_match_sets <= 0) { 3373 brcmf_dbg(SCAN, "invalid number of matchsets specified: %d\n", 3374 req->n_match_sets); 3375 return -EINVAL; 3376 } 3377 3378 return brcmf_pno_start_sched_scan(ifp, req); 3379 } 3380 3381 static int brcmf_cfg80211_sched_scan_stop(struct wiphy *wiphy, 3382 struct net_device *ndev, u64 reqid) 3383 { 3384 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 3385 struct brcmf_if *ifp = netdev_priv(ndev); 3386 3387 brcmf_dbg(SCAN, "enter\n"); 3388 brcmf_pno_stop_sched_scan(ifp, reqid); 3389 if (cfg->int_escan_map) 3390 brcmf_notify_escan_complete(cfg, ifp, true, true); 3391 return 0; 3392 } 3393 3394 static __always_inline void brcmf_delay(u32 ms) 3395 { 3396 if (ms < 1000 / HZ) { 3397 cond_resched(); 3398 mdelay(ms); 3399 } else { 3400 msleep(ms); 3401 } 3402 } 3403 3404 static s32 brcmf_config_wowl_pattern(struct brcmf_if *ifp, u8 cmd[4], 3405 u8 *pattern, u32 patternsize, u8 *mask, 3406 u32 packet_offset) 3407 { 3408 struct brcmf_fil_wowl_pattern_le *filter; 3409 u32 masksize; 3410 u32 patternoffset; 3411 u8 *buf; 3412 u32 bufsize; 3413 s32 ret; 3414 3415 masksize = (patternsize + 7) / 8; 3416 patternoffset = sizeof(*filter) - sizeof(filter->cmd) + masksize; 3417 3418 bufsize = sizeof(*filter) + patternsize + masksize; 3419 buf = kzalloc(bufsize, GFP_KERNEL); 3420 if (!buf) 3421 return -ENOMEM; 3422 filter = (struct brcmf_fil_wowl_pattern_le *)buf; 3423 3424 memcpy(filter->cmd, cmd, 4); 3425 filter->masksize = cpu_to_le32(masksize); 3426 filter->offset = cpu_to_le32(packet_offset); 3427 filter->patternoffset = cpu_to_le32(patternoffset); 3428 filter->patternsize = cpu_to_le32(patternsize); 3429 filter->type = cpu_to_le32(BRCMF_WOWL_PATTERN_TYPE_BITMAP); 3430 3431 if ((mask) && (masksize)) 3432 memcpy(buf + sizeof(*filter), mask, masksize); 3433 if ((pattern) && (patternsize)) 3434 memcpy(buf + sizeof(*filter) + masksize, pattern, patternsize); 3435 3436 ret = brcmf_fil_iovar_data_set(ifp, "wowl_pattern", buf, bufsize); 3437 3438 kfree(buf); 3439 return ret; 3440 } 3441 3442 static s32 3443 brcmf_wowl_nd_results(struct brcmf_if *ifp, const struct brcmf_event_msg *e, 3444 void *data) 3445 { 3446 struct brcmf_cfg80211_info *cfg = ifp->drvr->config; 3447 struct brcmf_pno_scanresults_le *pfn_result; 3448 struct brcmf_pno_net_info_le *netinfo; 3449 3450 brcmf_dbg(SCAN, "Enter\n"); 3451 3452 if (e->datalen < (sizeof(*pfn_result) + sizeof(*netinfo))) { 3453 brcmf_dbg(SCAN, "Event data to small. Ignore\n"); 3454 return 0; 3455 } 3456 3457 pfn_result = (struct brcmf_pno_scanresults_le *)data; 3458 3459 if (e->event_code == BRCMF_E_PFN_NET_LOST) { 3460 brcmf_dbg(SCAN, "PFN NET LOST event. Ignore\n"); 3461 return 0; 3462 } 3463 3464 if (le32_to_cpu(pfn_result->count) < 1) { 3465 brcmf_err("Invalid result count, expected 1 (%d)\n", 3466 le32_to_cpu(pfn_result->count)); 3467 return -EINVAL; 3468 } 3469 3470 netinfo = brcmf_get_netinfo_array(pfn_result); 3471 memcpy(cfg->wowl.nd->ssid.ssid, netinfo->SSID, netinfo->SSID_len); 3472 cfg->wowl.nd->ssid.ssid_len = netinfo->SSID_len; 3473 cfg->wowl.nd->n_channels = 1; 3474 cfg->wowl.nd->channels[0] = 3475 ieee80211_channel_to_frequency(netinfo->channel, 3476 netinfo->channel <= CH_MAX_2G_CHANNEL ? 3477 NL80211_BAND_2GHZ : NL80211_BAND_5GHZ); 3478 cfg->wowl.nd_info->n_matches = 1; 3479 cfg->wowl.nd_info->matches[0] = cfg->wowl.nd; 3480 3481 /* Inform (the resume task) that the net detect information was recvd */ 3482 cfg->wowl.nd_data_completed = true; 3483 wake_up(&cfg->wowl.nd_data_wait); 3484 3485 return 0; 3486 } 3487 3488 #ifdef CONFIG_PM 3489 3490 static void brcmf_report_wowl_wakeind(struct wiphy *wiphy, struct brcmf_if *ifp) 3491 { 3492 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 3493 struct brcmf_wowl_wakeind_le wake_ind_le; 3494 struct cfg80211_wowlan_wakeup wakeup_data; 3495 struct cfg80211_wowlan_wakeup *wakeup; 3496 u32 wakeind; 3497 s32 err; 3498 int timeout; 3499 3500 err = brcmf_fil_iovar_data_get(ifp, "wowl_wakeind", &wake_ind_le, 3501 sizeof(wake_ind_le)); 3502 if (err) { 3503 brcmf_err("Get wowl_wakeind failed, err = %d\n", err); 3504 return; 3505 } 3506 3507 wakeind = le32_to_cpu(wake_ind_le.ucode_wakeind); 3508 if (wakeind & (BRCMF_WOWL_MAGIC | BRCMF_WOWL_DIS | BRCMF_WOWL_BCN | 3509 BRCMF_WOWL_RETR | BRCMF_WOWL_NET | 3510 BRCMF_WOWL_PFN_FOUND)) { 3511 wakeup = &wakeup_data; 3512 memset(&wakeup_data, 0, sizeof(wakeup_data)); 3513 wakeup_data.pattern_idx = -1; 3514 3515 if (wakeind & BRCMF_WOWL_MAGIC) { 3516 brcmf_dbg(INFO, "WOWL Wake indicator: BRCMF_WOWL_MAGIC\n"); 3517 wakeup_data.magic_pkt = true; 3518 } 3519 if (wakeind & BRCMF_WOWL_DIS) { 3520 brcmf_dbg(INFO, "WOWL Wake indicator: BRCMF_WOWL_DIS\n"); 3521 wakeup_data.disconnect = true; 3522 } 3523 if (wakeind & BRCMF_WOWL_BCN) { 3524 brcmf_dbg(INFO, "WOWL Wake indicator: BRCMF_WOWL_BCN\n"); 3525 wakeup_data.disconnect = true; 3526 } 3527 if (wakeind & BRCMF_WOWL_RETR) { 3528 brcmf_dbg(INFO, "WOWL Wake indicator: BRCMF_WOWL_RETR\n"); 3529 wakeup_data.disconnect = true; 3530 } 3531 if (wakeind & BRCMF_WOWL_NET) { 3532 brcmf_dbg(INFO, "WOWL Wake indicator: BRCMF_WOWL_NET\n"); 3533 /* For now always map to pattern 0, no API to get 3534 * correct information available at the moment. 3535 */ 3536 wakeup_data.pattern_idx = 0; 3537 } 3538 if (wakeind & BRCMF_WOWL_PFN_FOUND) { 3539 brcmf_dbg(INFO, "WOWL Wake indicator: BRCMF_WOWL_PFN_FOUND\n"); 3540 timeout = wait_event_timeout(cfg->wowl.nd_data_wait, 3541 cfg->wowl.nd_data_completed, 3542 BRCMF_ND_INFO_TIMEOUT); 3543 if (!timeout) 3544 brcmf_err("No result for wowl net detect\n"); 3545 else 3546 wakeup_data.net_detect = cfg->wowl.nd_info; 3547 } 3548 if (wakeind & BRCMF_WOWL_GTK_FAILURE) { 3549 brcmf_dbg(INFO, "WOWL Wake indicator: BRCMF_WOWL_GTK_FAILURE\n"); 3550 wakeup_data.gtk_rekey_failure = true; 3551 } 3552 } else { 3553 wakeup = NULL; 3554 } 3555 cfg80211_report_wowlan_wakeup(&ifp->vif->wdev, wakeup, GFP_KERNEL); 3556 } 3557 3558 #else 3559 3560 static void brcmf_report_wowl_wakeind(struct wiphy *wiphy, struct brcmf_if *ifp) 3561 { 3562 } 3563 3564 #endif /* CONFIG_PM */ 3565 3566 static s32 brcmf_cfg80211_resume(struct wiphy *wiphy) 3567 { 3568 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 3569 struct net_device *ndev = cfg_to_ndev(cfg); 3570 struct brcmf_if *ifp = netdev_priv(ndev); 3571 3572 brcmf_dbg(TRACE, "Enter\n"); 3573 3574 if (cfg->wowl.active) { 3575 brcmf_report_wowl_wakeind(wiphy, ifp); 3576 brcmf_fil_iovar_int_set(ifp, "wowl_clear", 0); 3577 brcmf_config_wowl_pattern(ifp, "clr", NULL, 0, NULL, 0); 3578 if (!brcmf_feat_is_enabled(ifp, BRCMF_FEAT_WOWL_ARP_ND)) 3579 brcmf_configure_arp_nd_offload(ifp, true); 3580 brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM, 3581 cfg->wowl.pre_pmmode); 3582 cfg->wowl.active = false; 3583 if (cfg->wowl.nd_enabled) { 3584 brcmf_cfg80211_sched_scan_stop(cfg->wiphy, ifp->ndev, 0); 3585 brcmf_fweh_unregister(cfg->pub, BRCMF_E_PFN_NET_FOUND); 3586 brcmf_fweh_register(cfg->pub, BRCMF_E_PFN_NET_FOUND, 3587 brcmf_notify_sched_scan_results); 3588 cfg->wowl.nd_enabled = false; 3589 } 3590 } 3591 return 0; 3592 } 3593 3594 static void brcmf_configure_wowl(struct brcmf_cfg80211_info *cfg, 3595 struct brcmf_if *ifp, 3596 struct cfg80211_wowlan *wowl) 3597 { 3598 u32 wowl_config; 3599 struct brcmf_wowl_wakeind_le wowl_wakeind; 3600 u32 i; 3601 3602 brcmf_dbg(TRACE, "Suspend, wowl config.\n"); 3603 3604 if (!brcmf_feat_is_enabled(ifp, BRCMF_FEAT_WOWL_ARP_ND)) 3605 brcmf_configure_arp_nd_offload(ifp, false); 3606 brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_PM, &cfg->wowl.pre_pmmode); 3607 brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM, PM_MAX); 3608 3609 wowl_config = 0; 3610 if (wowl->disconnect) 3611 wowl_config = BRCMF_WOWL_DIS | BRCMF_WOWL_BCN | BRCMF_WOWL_RETR; 3612 if (wowl->magic_pkt) 3613 wowl_config |= BRCMF_WOWL_MAGIC; 3614 if ((wowl->patterns) && (wowl->n_patterns)) { 3615 wowl_config |= BRCMF_WOWL_NET; 3616 for (i = 0; i < wowl->n_patterns; i++) { 3617 brcmf_config_wowl_pattern(ifp, "add", 3618 (u8 *)wowl->patterns[i].pattern, 3619 wowl->patterns[i].pattern_len, 3620 (u8 *)wowl->patterns[i].mask, 3621 wowl->patterns[i].pkt_offset); 3622 } 3623 } 3624 if (wowl->nd_config) { 3625 brcmf_cfg80211_sched_scan_start(cfg->wiphy, ifp->ndev, 3626 wowl->nd_config); 3627 wowl_config |= BRCMF_WOWL_PFN_FOUND; 3628 3629 cfg->wowl.nd_data_completed = false; 3630 cfg->wowl.nd_enabled = true; 3631 /* Now reroute the event for PFN to the wowl function. */ 3632 brcmf_fweh_unregister(cfg->pub, BRCMF_E_PFN_NET_FOUND); 3633 brcmf_fweh_register(cfg->pub, BRCMF_E_PFN_NET_FOUND, 3634 brcmf_wowl_nd_results); 3635 } 3636 if (wowl->gtk_rekey_failure) 3637 wowl_config |= BRCMF_WOWL_GTK_FAILURE; 3638 if (!test_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state)) 3639 wowl_config |= BRCMF_WOWL_UNASSOC; 3640 3641 memcpy(&wowl_wakeind, "clear", 6); 3642 brcmf_fil_iovar_data_set(ifp, "wowl_wakeind", &wowl_wakeind, 3643 sizeof(wowl_wakeind)); 3644 brcmf_fil_iovar_int_set(ifp, "wowl", wowl_config); 3645 brcmf_fil_iovar_int_set(ifp, "wowl_activate", 1); 3646 brcmf_bus_wowl_config(cfg->pub->bus_if, true); 3647 cfg->wowl.active = true; 3648 } 3649 3650 static s32 brcmf_cfg80211_suspend(struct wiphy *wiphy, 3651 struct cfg80211_wowlan *wowl) 3652 { 3653 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 3654 struct net_device *ndev = cfg_to_ndev(cfg); 3655 struct brcmf_if *ifp = netdev_priv(ndev); 3656 struct brcmf_cfg80211_vif *vif; 3657 3658 brcmf_dbg(TRACE, "Enter\n"); 3659 3660 /* if the primary net_device is not READY there is nothing 3661 * we can do but pray resume goes smoothly. 3662 */ 3663 if (!check_vif_up(ifp->vif)) 3664 goto exit; 3665 3666 /* Stop scheduled scan */ 3667 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_PNO)) 3668 brcmf_cfg80211_sched_scan_stop(wiphy, ndev, 0); 3669 3670 /* end any scanning */ 3671 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) 3672 brcmf_abort_scanning(cfg); 3673 3674 if (wowl == NULL) { 3675 brcmf_bus_wowl_config(cfg->pub->bus_if, false); 3676 list_for_each_entry(vif, &cfg->vif_list, list) { 3677 if (!test_bit(BRCMF_VIF_STATUS_READY, &vif->sme_state)) 3678 continue; 3679 /* While going to suspend if associated with AP 3680 * disassociate from AP to save power while system is 3681 * in suspended state 3682 */ 3683 brcmf_link_down(vif, WLAN_REASON_UNSPECIFIED); 3684 /* Make sure WPA_Supplicant receives all the event 3685 * generated due to DISASSOC call to the fw to keep 3686 * the state fw and WPA_Supplicant state consistent 3687 */ 3688 brcmf_delay(500); 3689 } 3690 /* Configure MPC */ 3691 brcmf_set_mpc(ifp, 1); 3692 3693 } else { 3694 /* Configure WOWL paramaters */ 3695 brcmf_configure_wowl(cfg, ifp, wowl); 3696 } 3697 3698 exit: 3699 brcmf_dbg(TRACE, "Exit\n"); 3700 /* clear any scanning activity */ 3701 cfg->scan_status = 0; 3702 return 0; 3703 } 3704 3705 static __used s32 3706 brcmf_update_pmklist(struct brcmf_cfg80211_info *cfg, struct brcmf_if *ifp) 3707 { 3708 struct brcmf_pmk_list_le *pmk_list; 3709 int i; 3710 u32 npmk; 3711 s32 err; 3712 3713 pmk_list = &cfg->pmk_list; 3714 npmk = le32_to_cpu(pmk_list->npmk); 3715 3716 brcmf_dbg(CONN, "No of elements %d\n", npmk); 3717 for (i = 0; i < npmk; i++) 3718 brcmf_dbg(CONN, "PMK[%d]: %pM\n", i, &pmk_list->pmk[i].bssid); 3719 3720 err = brcmf_fil_iovar_data_set(ifp, "pmkid_info", pmk_list, 3721 sizeof(*pmk_list)); 3722 3723 return err; 3724 } 3725 3726 static s32 3727 brcmf_cfg80211_set_pmksa(struct wiphy *wiphy, struct net_device *ndev, 3728 struct cfg80211_pmksa *pmksa) 3729 { 3730 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 3731 struct brcmf_if *ifp = netdev_priv(ndev); 3732 struct brcmf_pmksa *pmk = &cfg->pmk_list.pmk[0]; 3733 s32 err; 3734 u32 npmk, i; 3735 3736 brcmf_dbg(TRACE, "Enter\n"); 3737 if (!check_vif_up(ifp->vif)) 3738 return -EIO; 3739 3740 npmk = le32_to_cpu(cfg->pmk_list.npmk); 3741 for (i = 0; i < npmk; i++) 3742 if (!memcmp(pmksa->bssid, pmk[i].bssid, ETH_ALEN)) 3743 break; 3744 if (i < BRCMF_MAXPMKID) { 3745 memcpy(pmk[i].bssid, pmksa->bssid, ETH_ALEN); 3746 memcpy(pmk[i].pmkid, pmksa->pmkid, WLAN_PMKID_LEN); 3747 if (i == npmk) { 3748 npmk++; 3749 cfg->pmk_list.npmk = cpu_to_le32(npmk); 3750 } 3751 } else { 3752 brcmf_err("Too many PMKSA entries cached %d\n", npmk); 3753 return -EINVAL; 3754 } 3755 3756 brcmf_dbg(CONN, "set_pmksa - PMK bssid: %pM =\n", pmk[npmk].bssid); 3757 for (i = 0; i < WLAN_PMKID_LEN; i += 4) 3758 brcmf_dbg(CONN, "%02x %02x %02x %02x\n", pmk[npmk].pmkid[i], 3759 pmk[npmk].pmkid[i + 1], pmk[npmk].pmkid[i + 2], 3760 pmk[npmk].pmkid[i + 3]); 3761 3762 err = brcmf_update_pmklist(cfg, ifp); 3763 3764 brcmf_dbg(TRACE, "Exit\n"); 3765 return err; 3766 } 3767 3768 static s32 3769 brcmf_cfg80211_del_pmksa(struct wiphy *wiphy, struct net_device *ndev, 3770 struct cfg80211_pmksa *pmksa) 3771 { 3772 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 3773 struct brcmf_if *ifp = netdev_priv(ndev); 3774 struct brcmf_pmksa *pmk = &cfg->pmk_list.pmk[0]; 3775 s32 err; 3776 u32 npmk, i; 3777 3778 brcmf_dbg(TRACE, "Enter\n"); 3779 if (!check_vif_up(ifp->vif)) 3780 return -EIO; 3781 3782 brcmf_dbg(CONN, "del_pmksa - PMK bssid = %pM\n", pmksa->bssid); 3783 3784 npmk = le32_to_cpu(cfg->pmk_list.npmk); 3785 for (i = 0; i < npmk; i++) 3786 if (!memcmp(pmksa->bssid, pmk[i].bssid, ETH_ALEN)) 3787 break; 3788 3789 if ((npmk > 0) && (i < npmk)) { 3790 for (; i < (npmk - 1); i++) { 3791 memcpy(&pmk[i].bssid, &pmk[i + 1].bssid, ETH_ALEN); 3792 memcpy(&pmk[i].pmkid, &pmk[i + 1].pmkid, 3793 WLAN_PMKID_LEN); 3794 } 3795 memset(&pmk[i], 0, sizeof(*pmk)); 3796 cfg->pmk_list.npmk = cpu_to_le32(npmk - 1); 3797 } else { 3798 brcmf_err("Cache entry not found\n"); 3799 return -EINVAL; 3800 } 3801 3802 err = brcmf_update_pmklist(cfg, ifp); 3803 3804 brcmf_dbg(TRACE, "Exit\n"); 3805 return err; 3806 3807 } 3808 3809 static s32 3810 brcmf_cfg80211_flush_pmksa(struct wiphy *wiphy, struct net_device *ndev) 3811 { 3812 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 3813 struct brcmf_if *ifp = netdev_priv(ndev); 3814 s32 err; 3815 3816 brcmf_dbg(TRACE, "Enter\n"); 3817 if (!check_vif_up(ifp->vif)) 3818 return -EIO; 3819 3820 memset(&cfg->pmk_list, 0, sizeof(cfg->pmk_list)); 3821 err = brcmf_update_pmklist(cfg, ifp); 3822 3823 brcmf_dbg(TRACE, "Exit\n"); 3824 return err; 3825 3826 } 3827 3828 static s32 brcmf_configure_opensecurity(struct brcmf_if *ifp) 3829 { 3830 s32 err; 3831 s32 wpa_val; 3832 3833 /* set auth */ 3834 err = brcmf_fil_bsscfg_int_set(ifp, "auth", 0); 3835 if (err < 0) { 3836 brcmf_err("auth error %d\n", err); 3837 return err; 3838 } 3839 /* set wsec */ 3840 err = brcmf_fil_bsscfg_int_set(ifp, "wsec", 0); 3841 if (err < 0) { 3842 brcmf_err("wsec error %d\n", err); 3843 return err; 3844 } 3845 /* set upper-layer auth */ 3846 if (brcmf_is_ibssmode(ifp->vif)) 3847 wpa_val = WPA_AUTH_NONE; 3848 else 3849 wpa_val = WPA_AUTH_DISABLED; 3850 err = brcmf_fil_bsscfg_int_set(ifp, "wpa_auth", wpa_val); 3851 if (err < 0) { 3852 brcmf_err("wpa_auth error %d\n", err); 3853 return err; 3854 } 3855 3856 return 0; 3857 } 3858 3859 static bool brcmf_valid_wpa_oui(u8 *oui, bool is_rsn_ie) 3860 { 3861 if (is_rsn_ie) 3862 return (memcmp(oui, RSN_OUI, TLV_OUI_LEN) == 0); 3863 3864 return (memcmp(oui, WPA_OUI, TLV_OUI_LEN) == 0); 3865 } 3866 3867 static s32 3868 brcmf_configure_wpaie(struct brcmf_if *ifp, 3869 const struct brcmf_vs_tlv *wpa_ie, 3870 bool is_rsn_ie) 3871 { 3872 u32 auth = 0; /* d11 open authentication */ 3873 u16 count; 3874 s32 err = 0; 3875 s32 len; 3876 u32 i; 3877 u32 wsec; 3878 u32 pval = 0; 3879 u32 gval = 0; 3880 u32 wpa_auth = 0; 3881 u32 offset; 3882 u8 *data; 3883 u16 rsn_cap; 3884 u32 wme_bss_disable; 3885 u32 mfp; 3886 3887 brcmf_dbg(TRACE, "Enter\n"); 3888 if (wpa_ie == NULL) 3889 goto exit; 3890 3891 len = wpa_ie->len + TLV_HDR_LEN; 3892 data = (u8 *)wpa_ie; 3893 offset = TLV_HDR_LEN; 3894 if (!is_rsn_ie) 3895 offset += VS_IE_FIXED_HDR_LEN; 3896 else 3897 offset += WPA_IE_VERSION_LEN; 3898 3899 /* check for multicast cipher suite */ 3900 if (offset + WPA_IE_MIN_OUI_LEN > len) { 3901 err = -EINVAL; 3902 brcmf_err("no multicast cipher suite\n"); 3903 goto exit; 3904 } 3905 3906 if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) { 3907 err = -EINVAL; 3908 brcmf_err("ivalid OUI\n"); 3909 goto exit; 3910 } 3911 offset += TLV_OUI_LEN; 3912 3913 /* pick up multicast cipher */ 3914 switch (data[offset]) { 3915 case WPA_CIPHER_NONE: 3916 gval = 0; 3917 break; 3918 case WPA_CIPHER_WEP_40: 3919 case WPA_CIPHER_WEP_104: 3920 gval = WEP_ENABLED; 3921 break; 3922 case WPA_CIPHER_TKIP: 3923 gval = TKIP_ENABLED; 3924 break; 3925 case WPA_CIPHER_AES_CCM: 3926 gval = AES_ENABLED; 3927 break; 3928 default: 3929 err = -EINVAL; 3930 brcmf_err("Invalid multi cast cipher info\n"); 3931 goto exit; 3932 } 3933 3934 offset++; 3935 /* walk thru unicast cipher list and pick up what we recognize */ 3936 count = data[offset] + (data[offset + 1] << 8); 3937 offset += WPA_IE_SUITE_COUNT_LEN; 3938 /* Check for unicast suite(s) */ 3939 if (offset + (WPA_IE_MIN_OUI_LEN * count) > len) { 3940 err = -EINVAL; 3941 brcmf_err("no unicast cipher suite\n"); 3942 goto exit; 3943 } 3944 for (i = 0; i < count; i++) { 3945 if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) { 3946 err = -EINVAL; 3947 brcmf_err("ivalid OUI\n"); 3948 goto exit; 3949 } 3950 offset += TLV_OUI_LEN; 3951 switch (data[offset]) { 3952 case WPA_CIPHER_NONE: 3953 break; 3954 case WPA_CIPHER_WEP_40: 3955 case WPA_CIPHER_WEP_104: 3956 pval |= WEP_ENABLED; 3957 break; 3958 case WPA_CIPHER_TKIP: 3959 pval |= TKIP_ENABLED; 3960 break; 3961 case WPA_CIPHER_AES_CCM: 3962 pval |= AES_ENABLED; 3963 break; 3964 default: 3965 brcmf_err("Invalid unicast security info\n"); 3966 } 3967 offset++; 3968 } 3969 /* walk thru auth management suite list and pick up what we recognize */ 3970 count = data[offset] + (data[offset + 1] << 8); 3971 offset += WPA_IE_SUITE_COUNT_LEN; 3972 /* Check for auth key management suite(s) */ 3973 if (offset + (WPA_IE_MIN_OUI_LEN * count) > len) { 3974 err = -EINVAL; 3975 brcmf_err("no auth key mgmt suite\n"); 3976 goto exit; 3977 } 3978 for (i = 0; i < count; i++) { 3979 if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) { 3980 err = -EINVAL; 3981 brcmf_err("ivalid OUI\n"); 3982 goto exit; 3983 } 3984 offset += TLV_OUI_LEN; 3985 switch (data[offset]) { 3986 case RSN_AKM_NONE: 3987 brcmf_dbg(TRACE, "RSN_AKM_NONE\n"); 3988 wpa_auth |= WPA_AUTH_NONE; 3989 break; 3990 case RSN_AKM_UNSPECIFIED: 3991 brcmf_dbg(TRACE, "RSN_AKM_UNSPECIFIED\n"); 3992 is_rsn_ie ? (wpa_auth |= WPA2_AUTH_UNSPECIFIED) : 3993 (wpa_auth |= WPA_AUTH_UNSPECIFIED); 3994 break; 3995 case RSN_AKM_PSK: 3996 brcmf_dbg(TRACE, "RSN_AKM_PSK\n"); 3997 is_rsn_ie ? (wpa_auth |= WPA2_AUTH_PSK) : 3998 (wpa_auth |= WPA_AUTH_PSK); 3999 break; 4000 case RSN_AKM_SHA256_PSK: 4001 brcmf_dbg(TRACE, "RSN_AKM_MFP_PSK\n"); 4002 wpa_auth |= WPA2_AUTH_PSK_SHA256; 4003 break; 4004 case RSN_AKM_SHA256_1X: 4005 brcmf_dbg(TRACE, "RSN_AKM_MFP_1X\n"); 4006 wpa_auth |= WPA2_AUTH_1X_SHA256; 4007 break; 4008 default: 4009 brcmf_err("Invalid key mgmt info\n"); 4010 } 4011 offset++; 4012 } 4013 4014 mfp = BRCMF_MFP_NONE; 4015 if (is_rsn_ie) { 4016 wme_bss_disable = 1; 4017 if ((offset + RSN_CAP_LEN) <= len) { 4018 rsn_cap = data[offset] + (data[offset + 1] << 8); 4019 if (rsn_cap & RSN_CAP_PTK_REPLAY_CNTR_MASK) 4020 wme_bss_disable = 0; 4021 if (rsn_cap & RSN_CAP_MFPR_MASK) { 4022 brcmf_dbg(TRACE, "MFP Required\n"); 4023 mfp = BRCMF_MFP_REQUIRED; 4024 /* Firmware only supports mfp required in 4025 * combination with WPA2_AUTH_PSK_SHA256 or 4026 * WPA2_AUTH_1X_SHA256. 4027 */ 4028 if (!(wpa_auth & (WPA2_AUTH_PSK_SHA256 | 4029 WPA2_AUTH_1X_SHA256))) { 4030 err = -EINVAL; 4031 goto exit; 4032 } 4033 /* Firmware has requirement that WPA2_AUTH_PSK/ 4034 * WPA2_AUTH_UNSPECIFIED be set, if SHA256 OUI 4035 * is to be included in the rsn ie. 4036 */ 4037 if (wpa_auth & WPA2_AUTH_PSK_SHA256) 4038 wpa_auth |= WPA2_AUTH_PSK; 4039 else if (wpa_auth & WPA2_AUTH_1X_SHA256) 4040 wpa_auth |= WPA2_AUTH_UNSPECIFIED; 4041 } else if (rsn_cap & RSN_CAP_MFPC_MASK) { 4042 brcmf_dbg(TRACE, "MFP Capable\n"); 4043 mfp = BRCMF_MFP_CAPABLE; 4044 } 4045 } 4046 offset += RSN_CAP_LEN; 4047 /* set wme_bss_disable to sync RSN Capabilities */ 4048 err = brcmf_fil_bsscfg_int_set(ifp, "wme_bss_disable", 4049 wme_bss_disable); 4050 if (err < 0) { 4051 brcmf_err("wme_bss_disable error %d\n", err); 4052 goto exit; 4053 } 4054 4055 /* Skip PMKID cnt as it is know to be 0 for AP. */ 4056 offset += RSN_PMKID_COUNT_LEN; 4057 4058 /* See if there is BIP wpa suite left for MFP */ 4059 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MFP) && 4060 ((offset + WPA_IE_MIN_OUI_LEN) <= len)) { 4061 err = brcmf_fil_bsscfg_data_set(ifp, "bip", 4062 &data[offset], 4063 WPA_IE_MIN_OUI_LEN); 4064 if (err < 0) { 4065 brcmf_err("bip error %d\n", err); 4066 goto exit; 4067 } 4068 } 4069 } 4070 /* FOR WPS , set SES_OW_ENABLED */ 4071 wsec = (pval | gval | SES_OW_ENABLED); 4072 4073 /* set auth */ 4074 err = brcmf_fil_bsscfg_int_set(ifp, "auth", auth); 4075 if (err < 0) { 4076 brcmf_err("auth error %d\n", err); 4077 goto exit; 4078 } 4079 /* set wsec */ 4080 err = brcmf_fil_bsscfg_int_set(ifp, "wsec", wsec); 4081 if (err < 0) { 4082 brcmf_err("wsec error %d\n", err); 4083 goto exit; 4084 } 4085 /* Configure MFP, this needs to go after wsec otherwise the wsec command 4086 * will overwrite the values set by MFP 4087 */ 4088 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MFP)) { 4089 err = brcmf_fil_bsscfg_int_set(ifp, "mfp", mfp); 4090 if (err < 0) { 4091 brcmf_err("mfp error %d\n", err); 4092 goto exit; 4093 } 4094 } 4095 /* set upper-layer auth */ 4096 err = brcmf_fil_bsscfg_int_set(ifp, "wpa_auth", wpa_auth); 4097 if (err < 0) { 4098 brcmf_err("wpa_auth error %d\n", err); 4099 goto exit; 4100 } 4101 4102 exit: 4103 return err; 4104 } 4105 4106 static s32 4107 brcmf_parse_vndr_ies(const u8 *vndr_ie_buf, u32 vndr_ie_len, 4108 struct parsed_vndr_ies *vndr_ies) 4109 { 4110 struct brcmf_vs_tlv *vndrie; 4111 struct brcmf_tlv *ie; 4112 struct parsed_vndr_ie_info *parsed_info; 4113 s32 remaining_len; 4114 4115 remaining_len = (s32)vndr_ie_len; 4116 memset(vndr_ies, 0, sizeof(*vndr_ies)); 4117 4118 ie = (struct brcmf_tlv *)vndr_ie_buf; 4119 while (ie) { 4120 if (ie->id != WLAN_EID_VENDOR_SPECIFIC) 4121 goto next; 4122 vndrie = (struct brcmf_vs_tlv *)ie; 4123 /* len should be bigger than OUI length + one */ 4124 if (vndrie->len < (VS_IE_FIXED_HDR_LEN - TLV_HDR_LEN + 1)) { 4125 brcmf_err("invalid vndr ie. length is too small %d\n", 4126 vndrie->len); 4127 goto next; 4128 } 4129 /* if wpa or wme ie, do not add ie */ 4130 if (!memcmp(vndrie->oui, (u8 *)WPA_OUI, TLV_OUI_LEN) && 4131 ((vndrie->oui_type == WPA_OUI_TYPE) || 4132 (vndrie->oui_type == WME_OUI_TYPE))) { 4133 brcmf_dbg(TRACE, "Found WPA/WME oui. Do not add it\n"); 4134 goto next; 4135 } 4136 4137 parsed_info = &vndr_ies->ie_info[vndr_ies->count]; 4138 4139 /* save vndr ie information */ 4140 parsed_info->ie_ptr = (char *)vndrie; 4141 parsed_info->ie_len = vndrie->len + TLV_HDR_LEN; 4142 memcpy(&parsed_info->vndrie, vndrie, sizeof(*vndrie)); 4143 4144 vndr_ies->count++; 4145 4146 brcmf_dbg(TRACE, "** OUI %02x %02x %02x, type 0x%02x\n", 4147 parsed_info->vndrie.oui[0], 4148 parsed_info->vndrie.oui[1], 4149 parsed_info->vndrie.oui[2], 4150 parsed_info->vndrie.oui_type); 4151 4152 if (vndr_ies->count >= VNDR_IE_PARSE_LIMIT) 4153 break; 4154 next: 4155 remaining_len -= (ie->len + TLV_HDR_LEN); 4156 if (remaining_len <= TLV_HDR_LEN) 4157 ie = NULL; 4158 else 4159 ie = (struct brcmf_tlv *)(((u8 *)ie) + ie->len + 4160 TLV_HDR_LEN); 4161 } 4162 return 0; 4163 } 4164 4165 static u32 4166 brcmf_vndr_ie(u8 *iebuf, s32 pktflag, u8 *ie_ptr, u32 ie_len, s8 *add_del_cmd) 4167 { 4168 4169 strncpy(iebuf, add_del_cmd, VNDR_IE_CMD_LEN - 1); 4170 iebuf[VNDR_IE_CMD_LEN - 1] = '\0'; 4171 4172 put_unaligned_le32(1, &iebuf[VNDR_IE_COUNT_OFFSET]); 4173 4174 put_unaligned_le32(pktflag, &iebuf[VNDR_IE_PKTFLAG_OFFSET]); 4175 4176 memcpy(&iebuf[VNDR_IE_VSIE_OFFSET], ie_ptr, ie_len); 4177 4178 return ie_len + VNDR_IE_HDR_SIZE; 4179 } 4180 4181 s32 brcmf_vif_set_mgmt_ie(struct brcmf_cfg80211_vif *vif, s32 pktflag, 4182 const u8 *vndr_ie_buf, u32 vndr_ie_len) 4183 { 4184 struct brcmf_if *ifp; 4185 struct vif_saved_ie *saved_ie; 4186 s32 err = 0; 4187 u8 *iovar_ie_buf; 4188 u8 *curr_ie_buf; 4189 u8 *mgmt_ie_buf = NULL; 4190 int mgmt_ie_buf_len; 4191 u32 *mgmt_ie_len; 4192 u32 del_add_ie_buf_len = 0; 4193 u32 total_ie_buf_len = 0; 4194 u32 parsed_ie_buf_len = 0; 4195 struct parsed_vndr_ies old_vndr_ies; 4196 struct parsed_vndr_ies new_vndr_ies; 4197 struct parsed_vndr_ie_info *vndrie_info; 4198 s32 i; 4199 u8 *ptr; 4200 int remained_buf_len; 4201 4202 if (!vif) 4203 return -ENODEV; 4204 ifp = vif->ifp; 4205 saved_ie = &vif->saved_ie; 4206 4207 brcmf_dbg(TRACE, "bsscfgidx %d, pktflag : 0x%02X\n", ifp->bsscfgidx, 4208 pktflag); 4209 iovar_ie_buf = kzalloc(WL_EXTRA_BUF_MAX, GFP_KERNEL); 4210 if (!iovar_ie_buf) 4211 return -ENOMEM; 4212 curr_ie_buf = iovar_ie_buf; 4213 switch (pktflag) { 4214 case BRCMF_VNDR_IE_PRBREQ_FLAG: 4215 mgmt_ie_buf = saved_ie->probe_req_ie; 4216 mgmt_ie_len = &saved_ie->probe_req_ie_len; 4217 mgmt_ie_buf_len = sizeof(saved_ie->probe_req_ie); 4218 break; 4219 case BRCMF_VNDR_IE_PRBRSP_FLAG: 4220 mgmt_ie_buf = saved_ie->probe_res_ie; 4221 mgmt_ie_len = &saved_ie->probe_res_ie_len; 4222 mgmt_ie_buf_len = sizeof(saved_ie->probe_res_ie); 4223 break; 4224 case BRCMF_VNDR_IE_BEACON_FLAG: 4225 mgmt_ie_buf = saved_ie->beacon_ie; 4226 mgmt_ie_len = &saved_ie->beacon_ie_len; 4227 mgmt_ie_buf_len = sizeof(saved_ie->beacon_ie); 4228 break; 4229 case BRCMF_VNDR_IE_ASSOCREQ_FLAG: 4230 mgmt_ie_buf = saved_ie->assoc_req_ie; 4231 mgmt_ie_len = &saved_ie->assoc_req_ie_len; 4232 mgmt_ie_buf_len = sizeof(saved_ie->assoc_req_ie); 4233 break; 4234 default: 4235 err = -EPERM; 4236 brcmf_err("not suitable type\n"); 4237 goto exit; 4238 } 4239 4240 if (vndr_ie_len > mgmt_ie_buf_len) { 4241 err = -ENOMEM; 4242 brcmf_err("extra IE size too big\n"); 4243 goto exit; 4244 } 4245 4246 /* parse and save new vndr_ie in curr_ie_buff before comparing it */ 4247 if (vndr_ie_buf && vndr_ie_len && curr_ie_buf) { 4248 ptr = curr_ie_buf; 4249 brcmf_parse_vndr_ies(vndr_ie_buf, vndr_ie_len, &new_vndr_ies); 4250 for (i = 0; i < new_vndr_ies.count; i++) { 4251 vndrie_info = &new_vndr_ies.ie_info[i]; 4252 memcpy(ptr + parsed_ie_buf_len, vndrie_info->ie_ptr, 4253 vndrie_info->ie_len); 4254 parsed_ie_buf_len += vndrie_info->ie_len; 4255 } 4256 } 4257 4258 if (mgmt_ie_buf && *mgmt_ie_len) { 4259 if (parsed_ie_buf_len && (parsed_ie_buf_len == *mgmt_ie_len) && 4260 (memcmp(mgmt_ie_buf, curr_ie_buf, 4261 parsed_ie_buf_len) == 0)) { 4262 brcmf_dbg(TRACE, "Previous mgmt IE equals to current IE\n"); 4263 goto exit; 4264 } 4265 4266 /* parse old vndr_ie */ 4267 brcmf_parse_vndr_ies(mgmt_ie_buf, *mgmt_ie_len, &old_vndr_ies); 4268 4269 /* make a command to delete old ie */ 4270 for (i = 0; i < old_vndr_ies.count; i++) { 4271 vndrie_info = &old_vndr_ies.ie_info[i]; 4272 4273 brcmf_dbg(TRACE, "DEL ID : %d, Len: %d , OUI:%02x:%02x:%02x\n", 4274 vndrie_info->vndrie.id, 4275 vndrie_info->vndrie.len, 4276 vndrie_info->vndrie.oui[0], 4277 vndrie_info->vndrie.oui[1], 4278 vndrie_info->vndrie.oui[2]); 4279 4280 del_add_ie_buf_len = brcmf_vndr_ie(curr_ie_buf, pktflag, 4281 vndrie_info->ie_ptr, 4282 vndrie_info->ie_len, 4283 "del"); 4284 curr_ie_buf += del_add_ie_buf_len; 4285 total_ie_buf_len += del_add_ie_buf_len; 4286 } 4287 } 4288 4289 *mgmt_ie_len = 0; 4290 /* Add if there is any extra IE */ 4291 if (mgmt_ie_buf && parsed_ie_buf_len) { 4292 ptr = mgmt_ie_buf; 4293 4294 remained_buf_len = mgmt_ie_buf_len; 4295 4296 /* make a command to add new ie */ 4297 for (i = 0; i < new_vndr_ies.count; i++) { 4298 vndrie_info = &new_vndr_ies.ie_info[i]; 4299 4300 /* verify remained buf size before copy data */ 4301 if (remained_buf_len < (vndrie_info->vndrie.len + 4302 VNDR_IE_VSIE_OFFSET)) { 4303 brcmf_err("no space in mgmt_ie_buf: len left %d", 4304 remained_buf_len); 4305 break; 4306 } 4307 remained_buf_len -= (vndrie_info->ie_len + 4308 VNDR_IE_VSIE_OFFSET); 4309 4310 brcmf_dbg(TRACE, "ADDED ID : %d, Len: %d, OUI:%02x:%02x:%02x\n", 4311 vndrie_info->vndrie.id, 4312 vndrie_info->vndrie.len, 4313 vndrie_info->vndrie.oui[0], 4314 vndrie_info->vndrie.oui[1], 4315 vndrie_info->vndrie.oui[2]); 4316 4317 del_add_ie_buf_len = brcmf_vndr_ie(curr_ie_buf, pktflag, 4318 vndrie_info->ie_ptr, 4319 vndrie_info->ie_len, 4320 "add"); 4321 4322 /* save the parsed IE in wl struct */ 4323 memcpy(ptr + (*mgmt_ie_len), vndrie_info->ie_ptr, 4324 vndrie_info->ie_len); 4325 *mgmt_ie_len += vndrie_info->ie_len; 4326 4327 curr_ie_buf += del_add_ie_buf_len; 4328 total_ie_buf_len += del_add_ie_buf_len; 4329 } 4330 } 4331 if (total_ie_buf_len) { 4332 err = brcmf_fil_bsscfg_data_set(ifp, "vndr_ie", iovar_ie_buf, 4333 total_ie_buf_len); 4334 if (err) 4335 brcmf_err("vndr ie set error : %d\n", err); 4336 } 4337 4338 exit: 4339 kfree(iovar_ie_buf); 4340 return err; 4341 } 4342 4343 s32 brcmf_vif_clear_mgmt_ies(struct brcmf_cfg80211_vif *vif) 4344 { 4345 s32 pktflags[] = { 4346 BRCMF_VNDR_IE_PRBREQ_FLAG, 4347 BRCMF_VNDR_IE_PRBRSP_FLAG, 4348 BRCMF_VNDR_IE_BEACON_FLAG 4349 }; 4350 int i; 4351 4352 for (i = 0; i < ARRAY_SIZE(pktflags); i++) 4353 brcmf_vif_set_mgmt_ie(vif, pktflags[i], NULL, 0); 4354 4355 memset(&vif->saved_ie, 0, sizeof(vif->saved_ie)); 4356 return 0; 4357 } 4358 4359 static s32 4360 brcmf_config_ap_mgmt_ie(struct brcmf_cfg80211_vif *vif, 4361 struct cfg80211_beacon_data *beacon) 4362 { 4363 s32 err; 4364 4365 /* Set Beacon IEs to FW */ 4366 err = brcmf_vif_set_mgmt_ie(vif, BRCMF_VNDR_IE_BEACON_FLAG, 4367 beacon->tail, beacon->tail_len); 4368 if (err) { 4369 brcmf_err("Set Beacon IE Failed\n"); 4370 return err; 4371 } 4372 brcmf_dbg(TRACE, "Applied Vndr IEs for Beacon\n"); 4373 4374 /* Set Probe Response IEs to FW */ 4375 err = brcmf_vif_set_mgmt_ie(vif, BRCMF_VNDR_IE_PRBRSP_FLAG, 4376 beacon->proberesp_ies, 4377 beacon->proberesp_ies_len); 4378 if (err) 4379 brcmf_err("Set Probe Resp IE Failed\n"); 4380 else 4381 brcmf_dbg(TRACE, "Applied Vndr IEs for Probe Resp\n"); 4382 4383 return err; 4384 } 4385 4386 static s32 4387 brcmf_cfg80211_start_ap(struct wiphy *wiphy, struct net_device *ndev, 4388 struct cfg80211_ap_settings *settings) 4389 { 4390 s32 ie_offset; 4391 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 4392 struct brcmf_if *ifp = netdev_priv(ndev); 4393 const struct brcmf_tlv *ssid_ie; 4394 const struct brcmf_tlv *country_ie; 4395 struct brcmf_ssid_le ssid_le; 4396 s32 err = -EPERM; 4397 const struct brcmf_tlv *rsn_ie; 4398 const struct brcmf_vs_tlv *wpa_ie; 4399 struct brcmf_join_params join_params; 4400 enum nl80211_iftype dev_role; 4401 struct brcmf_fil_bss_enable_le bss_enable; 4402 u16 chanspec = chandef_to_chanspec(&cfg->d11inf, &settings->chandef); 4403 bool mbss; 4404 int is_11d; 4405 bool supports_11d; 4406 4407 brcmf_dbg(TRACE, "ctrlchn=%d, center=%d, bw=%d, beacon_interval=%d, dtim_period=%d,\n", 4408 settings->chandef.chan->hw_value, 4409 settings->chandef.center_freq1, settings->chandef.width, 4410 settings->beacon_interval, settings->dtim_period); 4411 brcmf_dbg(TRACE, "ssid=%s(%zu), auth_type=%d, inactivity_timeout=%d\n", 4412 settings->ssid, settings->ssid_len, settings->auth_type, 4413 settings->inactivity_timeout); 4414 dev_role = ifp->vif->wdev.iftype; 4415 mbss = ifp->vif->mbss; 4416 4417 /* store current 11d setting */ 4418 if (brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_REGULATORY, 4419 &ifp->vif->is_11d)) { 4420 is_11d = supports_11d = false; 4421 } else { 4422 country_ie = brcmf_parse_tlvs((u8 *)settings->beacon.tail, 4423 settings->beacon.tail_len, 4424 WLAN_EID_COUNTRY); 4425 is_11d = country_ie ? 1 : 0; 4426 supports_11d = true; 4427 } 4428 4429 memset(&ssid_le, 0, sizeof(ssid_le)); 4430 if (settings->ssid == NULL || settings->ssid_len == 0) { 4431 ie_offset = DOT11_MGMT_HDR_LEN + DOT11_BCN_PRB_FIXED_LEN; 4432 ssid_ie = brcmf_parse_tlvs( 4433 (u8 *)&settings->beacon.head[ie_offset], 4434 settings->beacon.head_len - ie_offset, 4435 WLAN_EID_SSID); 4436 if (!ssid_ie || ssid_ie->len > IEEE80211_MAX_SSID_LEN) 4437 return -EINVAL; 4438 4439 memcpy(ssid_le.SSID, ssid_ie->data, ssid_ie->len); 4440 ssid_le.SSID_len = cpu_to_le32(ssid_ie->len); 4441 brcmf_dbg(TRACE, "SSID is (%s) in Head\n", ssid_le.SSID); 4442 } else { 4443 memcpy(ssid_le.SSID, settings->ssid, settings->ssid_len); 4444 ssid_le.SSID_len = cpu_to_le32((u32)settings->ssid_len); 4445 } 4446 4447 if (!mbss) { 4448 brcmf_set_mpc(ifp, 0); 4449 brcmf_configure_arp_nd_offload(ifp, false); 4450 } 4451 4452 /* find the RSN_IE */ 4453 rsn_ie = brcmf_parse_tlvs((u8 *)settings->beacon.tail, 4454 settings->beacon.tail_len, WLAN_EID_RSN); 4455 4456 /* find the WPA_IE */ 4457 wpa_ie = brcmf_find_wpaie((u8 *)settings->beacon.tail, 4458 settings->beacon.tail_len); 4459 4460 if ((wpa_ie != NULL || rsn_ie != NULL)) { 4461 brcmf_dbg(TRACE, "WPA(2) IE is found\n"); 4462 if (wpa_ie != NULL) { 4463 /* WPA IE */ 4464 err = brcmf_configure_wpaie(ifp, wpa_ie, false); 4465 if (err < 0) 4466 goto exit; 4467 } else { 4468 struct brcmf_vs_tlv *tmp_ie; 4469 4470 tmp_ie = (struct brcmf_vs_tlv *)rsn_ie; 4471 4472 /* RSN IE */ 4473 err = brcmf_configure_wpaie(ifp, tmp_ie, true); 4474 if (err < 0) 4475 goto exit; 4476 } 4477 } else { 4478 brcmf_dbg(TRACE, "No WPA(2) IEs found\n"); 4479 brcmf_configure_opensecurity(ifp); 4480 } 4481 4482 /* Parameters shared by all radio interfaces */ 4483 if (!mbss) { 4484 if ((supports_11d) && (is_11d != ifp->vif->is_11d)) { 4485 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_REGULATORY, 4486 is_11d); 4487 if (err < 0) { 4488 brcmf_err("Regulatory Set Error, %d\n", err); 4489 goto exit; 4490 } 4491 } 4492 if (settings->beacon_interval) { 4493 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_BCNPRD, 4494 settings->beacon_interval); 4495 if (err < 0) { 4496 brcmf_err("Beacon Interval Set Error, %d\n", 4497 err); 4498 goto exit; 4499 } 4500 } 4501 if (settings->dtim_period) { 4502 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_DTIMPRD, 4503 settings->dtim_period); 4504 if (err < 0) { 4505 brcmf_err("DTIM Interval Set Error, %d\n", err); 4506 goto exit; 4507 } 4508 } 4509 4510 if ((dev_role == NL80211_IFTYPE_AP) && 4511 ((ifp->ifidx == 0) || 4512 !brcmf_feat_is_enabled(ifp, BRCMF_FEAT_RSDB))) { 4513 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_DOWN, 1); 4514 if (err < 0) { 4515 brcmf_err("BRCMF_C_DOWN error %d\n", err); 4516 goto exit; 4517 } 4518 brcmf_fil_iovar_int_set(ifp, "apsta", 0); 4519 } 4520 4521 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_INFRA, 1); 4522 if (err < 0) { 4523 brcmf_err("SET INFRA error %d\n", err); 4524 goto exit; 4525 } 4526 } else if (WARN_ON(supports_11d && (is_11d != ifp->vif->is_11d))) { 4527 /* Multiple-BSS should use same 11d configuration */ 4528 err = -EINVAL; 4529 goto exit; 4530 } 4531 4532 /* Interface specific setup */ 4533 if (dev_role == NL80211_IFTYPE_AP) { 4534 if ((brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MBSS)) && (!mbss)) 4535 brcmf_fil_iovar_int_set(ifp, "mbss", 1); 4536 4537 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_AP, 1); 4538 if (err < 0) { 4539 brcmf_err("setting AP mode failed %d\n", err); 4540 goto exit; 4541 } 4542 if (!mbss) { 4543 /* Firmware 10.x requires setting channel after enabling 4544 * AP and before bringing interface up. 4545 */ 4546 err = brcmf_fil_iovar_int_set(ifp, "chanspec", chanspec); 4547 if (err < 0) { 4548 brcmf_err("Set Channel failed: chspec=%d, %d\n", 4549 chanspec, err); 4550 goto exit; 4551 } 4552 } 4553 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 1); 4554 if (err < 0) { 4555 brcmf_err("BRCMF_C_UP error (%d)\n", err); 4556 goto exit; 4557 } 4558 /* On DOWN the firmware removes the WEP keys, reconfigure 4559 * them if they were set. 4560 */ 4561 brcmf_cfg80211_reconfigure_wep(ifp); 4562 4563 memset(&join_params, 0, sizeof(join_params)); 4564 /* join parameters starts with ssid */ 4565 memcpy(&join_params.ssid_le, &ssid_le, sizeof(ssid_le)); 4566 /* create softap */ 4567 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID, 4568 &join_params, sizeof(join_params)); 4569 if (err < 0) { 4570 brcmf_err("SET SSID error (%d)\n", err); 4571 goto exit; 4572 } 4573 4574 if (settings->hidden_ssid) { 4575 err = brcmf_fil_iovar_int_set(ifp, "closednet", 1); 4576 if (err) { 4577 brcmf_err("closednet error (%d)\n", err); 4578 goto exit; 4579 } 4580 } 4581 4582 brcmf_dbg(TRACE, "AP mode configuration complete\n"); 4583 } else if (dev_role == NL80211_IFTYPE_P2P_GO) { 4584 err = brcmf_fil_iovar_int_set(ifp, "chanspec", chanspec); 4585 if (err < 0) { 4586 brcmf_err("Set Channel failed: chspec=%d, %d\n", 4587 chanspec, err); 4588 goto exit; 4589 } 4590 err = brcmf_fil_bsscfg_data_set(ifp, "ssid", &ssid_le, 4591 sizeof(ssid_le)); 4592 if (err < 0) { 4593 brcmf_err("setting ssid failed %d\n", err); 4594 goto exit; 4595 } 4596 bss_enable.bsscfgidx = cpu_to_le32(ifp->bsscfgidx); 4597 bss_enable.enable = cpu_to_le32(1); 4598 err = brcmf_fil_iovar_data_set(ifp, "bss", &bss_enable, 4599 sizeof(bss_enable)); 4600 if (err < 0) { 4601 brcmf_err("bss_enable config failed %d\n", err); 4602 goto exit; 4603 } 4604 4605 brcmf_dbg(TRACE, "GO mode configuration complete\n"); 4606 } else { 4607 WARN_ON(1); 4608 } 4609 4610 brcmf_config_ap_mgmt_ie(ifp->vif, &settings->beacon); 4611 set_bit(BRCMF_VIF_STATUS_AP_CREATED, &ifp->vif->sme_state); 4612 brcmf_net_setcarrier(ifp, true); 4613 4614 exit: 4615 if ((err) && (!mbss)) { 4616 brcmf_set_mpc(ifp, 1); 4617 brcmf_configure_arp_nd_offload(ifp, true); 4618 } 4619 return err; 4620 } 4621 4622 static int brcmf_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *ndev) 4623 { 4624 struct brcmf_if *ifp = netdev_priv(ndev); 4625 s32 err; 4626 struct brcmf_fil_bss_enable_le bss_enable; 4627 struct brcmf_join_params join_params; 4628 4629 brcmf_dbg(TRACE, "Enter\n"); 4630 4631 if (ifp->vif->wdev.iftype == NL80211_IFTYPE_AP) { 4632 /* Due to most likely deauths outstanding we sleep */ 4633 /* first to make sure they get processed by fw. */ 4634 msleep(400); 4635 4636 if (ifp->vif->mbss) { 4637 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_DOWN, 1); 4638 return err; 4639 } 4640 4641 /* First BSS doesn't get a full reset */ 4642 if (ifp->bsscfgidx == 0) 4643 brcmf_fil_iovar_int_set(ifp, "closednet", 0); 4644 4645 memset(&join_params, 0, sizeof(join_params)); 4646 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID, 4647 &join_params, sizeof(join_params)); 4648 if (err < 0) 4649 brcmf_err("SET SSID error (%d)\n", err); 4650 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_DOWN, 1); 4651 if (err < 0) 4652 brcmf_err("BRCMF_C_DOWN error %d\n", err); 4653 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_AP, 0); 4654 if (err < 0) 4655 brcmf_err("setting AP mode failed %d\n", err); 4656 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MBSS)) 4657 brcmf_fil_iovar_int_set(ifp, "mbss", 0); 4658 brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_REGULATORY, 4659 ifp->vif->is_11d); 4660 /* Bring device back up so it can be used again */ 4661 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 1); 4662 if (err < 0) 4663 brcmf_err("BRCMF_C_UP error %d\n", err); 4664 4665 brcmf_vif_clear_mgmt_ies(ifp->vif); 4666 } else { 4667 bss_enable.bsscfgidx = cpu_to_le32(ifp->bsscfgidx); 4668 bss_enable.enable = cpu_to_le32(0); 4669 err = brcmf_fil_iovar_data_set(ifp, "bss", &bss_enable, 4670 sizeof(bss_enable)); 4671 if (err < 0) 4672 brcmf_err("bss_enable config failed %d\n", err); 4673 } 4674 brcmf_set_mpc(ifp, 1); 4675 brcmf_configure_arp_nd_offload(ifp, true); 4676 clear_bit(BRCMF_VIF_STATUS_AP_CREATED, &ifp->vif->sme_state); 4677 brcmf_net_setcarrier(ifp, false); 4678 4679 return err; 4680 } 4681 4682 static s32 4683 brcmf_cfg80211_change_beacon(struct wiphy *wiphy, struct net_device *ndev, 4684 struct cfg80211_beacon_data *info) 4685 { 4686 struct brcmf_if *ifp = netdev_priv(ndev); 4687 s32 err; 4688 4689 brcmf_dbg(TRACE, "Enter\n"); 4690 4691 err = brcmf_config_ap_mgmt_ie(ifp->vif, info); 4692 4693 return err; 4694 } 4695 4696 static int 4697 brcmf_cfg80211_del_station(struct wiphy *wiphy, struct net_device *ndev, 4698 struct station_del_parameters *params) 4699 { 4700 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 4701 struct brcmf_scb_val_le scbval; 4702 struct brcmf_if *ifp = netdev_priv(ndev); 4703 s32 err; 4704 4705 if (!params->mac) 4706 return -EFAULT; 4707 4708 brcmf_dbg(TRACE, "Enter %pM\n", params->mac); 4709 4710 if (ifp->vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif) 4711 ifp = cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif->ifp; 4712 if (!check_vif_up(ifp->vif)) 4713 return -EIO; 4714 4715 memcpy(&scbval.ea, params->mac, ETH_ALEN); 4716 scbval.val = cpu_to_le32(params->reason_code); 4717 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SCB_DEAUTHENTICATE_FOR_REASON, 4718 &scbval, sizeof(scbval)); 4719 if (err) 4720 brcmf_err("SCB_DEAUTHENTICATE_FOR_REASON failed %d\n", err); 4721 4722 brcmf_dbg(TRACE, "Exit\n"); 4723 return err; 4724 } 4725 4726 static int 4727 brcmf_cfg80211_change_station(struct wiphy *wiphy, struct net_device *ndev, 4728 const u8 *mac, struct station_parameters *params) 4729 { 4730 struct brcmf_if *ifp = netdev_priv(ndev); 4731 s32 err; 4732 4733 brcmf_dbg(TRACE, "Enter, MAC %pM, mask 0x%04x set 0x%04x\n", mac, 4734 params->sta_flags_mask, params->sta_flags_set); 4735 4736 /* Ignore all 00 MAC */ 4737 if (is_zero_ether_addr(mac)) 4738 return 0; 4739 4740 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED))) 4741 return 0; 4742 4743 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED)) 4744 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SCB_AUTHORIZE, 4745 (void *)mac, ETH_ALEN); 4746 else 4747 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SCB_DEAUTHORIZE, 4748 (void *)mac, ETH_ALEN); 4749 if (err < 0) 4750 brcmf_err("Setting SCB (de-)authorize failed, %d\n", err); 4751 4752 return err; 4753 } 4754 4755 static void 4756 brcmf_cfg80211_mgmt_frame_register(struct wiphy *wiphy, 4757 struct wireless_dev *wdev, 4758 u16 frame_type, bool reg) 4759 { 4760 struct brcmf_cfg80211_vif *vif; 4761 u16 mgmt_type; 4762 4763 brcmf_dbg(TRACE, "Enter, frame_type %04x, reg=%d\n", frame_type, reg); 4764 4765 mgmt_type = (frame_type & IEEE80211_FCTL_STYPE) >> 4; 4766 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev); 4767 if (reg) 4768 vif->mgmt_rx_reg |= BIT(mgmt_type); 4769 else 4770 vif->mgmt_rx_reg &= ~BIT(mgmt_type); 4771 } 4772 4773 4774 static int 4775 brcmf_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, 4776 struct cfg80211_mgmt_tx_params *params, u64 *cookie) 4777 { 4778 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 4779 struct ieee80211_channel *chan = params->chan; 4780 const u8 *buf = params->buf; 4781 size_t len = params->len; 4782 const struct ieee80211_mgmt *mgmt; 4783 struct brcmf_cfg80211_vif *vif; 4784 s32 err = 0; 4785 s32 ie_offset; 4786 s32 ie_len; 4787 struct brcmf_fil_action_frame_le *action_frame; 4788 struct brcmf_fil_af_params_le *af_params; 4789 bool ack; 4790 s32 chan_nr; 4791 u32 freq; 4792 4793 brcmf_dbg(TRACE, "Enter\n"); 4794 4795 *cookie = 0; 4796 4797 mgmt = (const struct ieee80211_mgmt *)buf; 4798 4799 if (!ieee80211_is_mgmt(mgmt->frame_control)) { 4800 brcmf_err("Driver only allows MGMT packet type\n"); 4801 return -EPERM; 4802 } 4803 4804 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev); 4805 4806 if (ieee80211_is_probe_resp(mgmt->frame_control)) { 4807 /* Right now the only reason to get a probe response */ 4808 /* is for p2p listen response or for p2p GO from */ 4809 /* wpa_supplicant. Unfortunately the probe is send */ 4810 /* on primary ndev, while dongle wants it on the p2p */ 4811 /* vif. Since this is only reason for a probe */ 4812 /* response to be sent, the vif is taken from cfg. */ 4813 /* If ever desired to send proberesp for non p2p */ 4814 /* response then data should be checked for */ 4815 /* "DIRECT-". Note in future supplicant will take */ 4816 /* dedicated p2p wdev to do this and then this 'hack'*/ 4817 /* is not needed anymore. */ 4818 ie_offset = DOT11_MGMT_HDR_LEN + 4819 DOT11_BCN_PRB_FIXED_LEN; 4820 ie_len = len - ie_offset; 4821 if (vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif) 4822 vif = cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif; 4823 err = brcmf_vif_set_mgmt_ie(vif, 4824 BRCMF_VNDR_IE_PRBRSP_FLAG, 4825 &buf[ie_offset], 4826 ie_len); 4827 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true, 4828 GFP_KERNEL); 4829 } else if (ieee80211_is_action(mgmt->frame_control)) { 4830 if (len > BRCMF_FIL_ACTION_FRAME_SIZE + DOT11_MGMT_HDR_LEN) { 4831 brcmf_err("invalid action frame length\n"); 4832 err = -EINVAL; 4833 goto exit; 4834 } 4835 af_params = kzalloc(sizeof(*af_params), GFP_KERNEL); 4836 if (af_params == NULL) { 4837 brcmf_err("unable to allocate frame\n"); 4838 err = -ENOMEM; 4839 goto exit; 4840 } 4841 action_frame = &af_params->action_frame; 4842 /* Add the packet Id */ 4843 action_frame->packet_id = cpu_to_le32(*cookie); 4844 /* Add BSSID */ 4845 memcpy(&action_frame->da[0], &mgmt->da[0], ETH_ALEN); 4846 memcpy(&af_params->bssid[0], &mgmt->bssid[0], ETH_ALEN); 4847 /* Add the length exepted for 802.11 header */ 4848 action_frame->len = cpu_to_le16(len - DOT11_MGMT_HDR_LEN); 4849 /* Add the channel. Use the one specified as parameter if any or 4850 * the current one (got from the firmware) otherwise 4851 */ 4852 if (chan) 4853 freq = chan->center_freq; 4854 else 4855 brcmf_fil_cmd_int_get(vif->ifp, BRCMF_C_GET_CHANNEL, 4856 &freq); 4857 chan_nr = ieee80211_frequency_to_channel(freq); 4858 af_params->channel = cpu_to_le32(chan_nr); 4859 4860 memcpy(action_frame->data, &buf[DOT11_MGMT_HDR_LEN], 4861 le16_to_cpu(action_frame->len)); 4862 4863 brcmf_dbg(TRACE, "Action frame, cookie=%lld, len=%d, freq=%d\n", 4864 *cookie, le16_to_cpu(action_frame->len), freq); 4865 4866 ack = brcmf_p2p_send_action_frame(cfg, cfg_to_ndev(cfg), 4867 af_params); 4868 4869 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, ack, 4870 GFP_KERNEL); 4871 kfree(af_params); 4872 } else { 4873 brcmf_dbg(TRACE, "Unhandled, fc=%04x!!\n", mgmt->frame_control); 4874 brcmf_dbg_hex_dump(true, buf, len, "payload, len=%zu\n", len); 4875 } 4876 4877 exit: 4878 return err; 4879 } 4880 4881 4882 static int 4883 brcmf_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy, 4884 struct wireless_dev *wdev, 4885 u64 cookie) 4886 { 4887 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 4888 struct brcmf_cfg80211_vif *vif; 4889 int err = 0; 4890 4891 brcmf_dbg(TRACE, "Enter p2p listen cancel\n"); 4892 4893 vif = cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif; 4894 if (vif == NULL) { 4895 brcmf_err("No p2p device available for probe response\n"); 4896 err = -ENODEV; 4897 goto exit; 4898 } 4899 brcmf_p2p_cancel_remain_on_channel(vif->ifp); 4900 exit: 4901 return err; 4902 } 4903 4904 static int brcmf_cfg80211_get_channel(struct wiphy *wiphy, 4905 struct wireless_dev *wdev, 4906 struct cfg80211_chan_def *chandef) 4907 { 4908 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 4909 struct net_device *ndev = wdev->netdev; 4910 struct brcmf_if *ifp; 4911 struct brcmu_chan ch; 4912 enum nl80211_band band = 0; 4913 enum nl80211_chan_width width = 0; 4914 u32 chanspec; 4915 int freq, err; 4916 4917 if (!ndev) 4918 return -ENODEV; 4919 ifp = netdev_priv(ndev); 4920 4921 err = brcmf_fil_iovar_int_get(ifp, "chanspec", &chanspec); 4922 if (err) { 4923 brcmf_err("chanspec failed (%d)\n", err); 4924 return err; 4925 } 4926 4927 ch.chspec = chanspec; 4928 cfg->d11inf.decchspec(&ch); 4929 4930 switch (ch.band) { 4931 case BRCMU_CHAN_BAND_2G: 4932 band = NL80211_BAND_2GHZ; 4933 break; 4934 case BRCMU_CHAN_BAND_5G: 4935 band = NL80211_BAND_5GHZ; 4936 break; 4937 } 4938 4939 switch (ch.bw) { 4940 case BRCMU_CHAN_BW_80: 4941 width = NL80211_CHAN_WIDTH_80; 4942 break; 4943 case BRCMU_CHAN_BW_40: 4944 width = NL80211_CHAN_WIDTH_40; 4945 break; 4946 case BRCMU_CHAN_BW_20: 4947 width = NL80211_CHAN_WIDTH_20; 4948 break; 4949 case BRCMU_CHAN_BW_80P80: 4950 width = NL80211_CHAN_WIDTH_80P80; 4951 break; 4952 case BRCMU_CHAN_BW_160: 4953 width = NL80211_CHAN_WIDTH_160; 4954 break; 4955 } 4956 4957 freq = ieee80211_channel_to_frequency(ch.control_ch_num, band); 4958 chandef->chan = ieee80211_get_channel(wiphy, freq); 4959 chandef->width = width; 4960 chandef->center_freq1 = ieee80211_channel_to_frequency(ch.chnum, band); 4961 chandef->center_freq2 = 0; 4962 4963 return 0; 4964 } 4965 4966 static int brcmf_cfg80211_crit_proto_start(struct wiphy *wiphy, 4967 struct wireless_dev *wdev, 4968 enum nl80211_crit_proto_id proto, 4969 u16 duration) 4970 { 4971 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 4972 struct brcmf_cfg80211_vif *vif; 4973 4974 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev); 4975 4976 /* only DHCP support for now */ 4977 if (proto != NL80211_CRIT_PROTO_DHCP) 4978 return -EINVAL; 4979 4980 /* suppress and abort scanning */ 4981 set_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status); 4982 brcmf_abort_scanning(cfg); 4983 4984 return brcmf_btcoex_set_mode(vif, BRCMF_BTCOEX_DISABLED, duration); 4985 } 4986 4987 static void brcmf_cfg80211_crit_proto_stop(struct wiphy *wiphy, 4988 struct wireless_dev *wdev) 4989 { 4990 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 4991 struct brcmf_cfg80211_vif *vif; 4992 4993 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev); 4994 4995 brcmf_btcoex_set_mode(vif, BRCMF_BTCOEX_ENABLED, 0); 4996 clear_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status); 4997 } 4998 4999 static s32 5000 brcmf_notify_tdls_peer_event(struct brcmf_if *ifp, 5001 const struct brcmf_event_msg *e, void *data) 5002 { 5003 switch (e->reason) { 5004 case BRCMF_E_REASON_TDLS_PEER_DISCOVERED: 5005 brcmf_dbg(TRACE, "TDLS Peer Discovered\n"); 5006 break; 5007 case BRCMF_E_REASON_TDLS_PEER_CONNECTED: 5008 brcmf_dbg(TRACE, "TDLS Peer Connected\n"); 5009 brcmf_proto_add_tdls_peer(ifp->drvr, ifp->ifidx, (u8 *)e->addr); 5010 break; 5011 case BRCMF_E_REASON_TDLS_PEER_DISCONNECTED: 5012 brcmf_dbg(TRACE, "TDLS Peer Disconnected\n"); 5013 brcmf_proto_delete_peer(ifp->drvr, ifp->ifidx, (u8 *)e->addr); 5014 break; 5015 } 5016 5017 return 0; 5018 } 5019 5020 static int brcmf_convert_nl80211_tdls_oper(enum nl80211_tdls_operation oper) 5021 { 5022 int ret; 5023 5024 switch (oper) { 5025 case NL80211_TDLS_DISCOVERY_REQ: 5026 ret = BRCMF_TDLS_MANUAL_EP_DISCOVERY; 5027 break; 5028 case NL80211_TDLS_SETUP: 5029 ret = BRCMF_TDLS_MANUAL_EP_CREATE; 5030 break; 5031 case NL80211_TDLS_TEARDOWN: 5032 ret = BRCMF_TDLS_MANUAL_EP_DELETE; 5033 break; 5034 default: 5035 brcmf_err("unsupported operation: %d\n", oper); 5036 ret = -EOPNOTSUPP; 5037 } 5038 return ret; 5039 } 5040 5041 static int brcmf_cfg80211_tdls_oper(struct wiphy *wiphy, 5042 struct net_device *ndev, const u8 *peer, 5043 enum nl80211_tdls_operation oper) 5044 { 5045 struct brcmf_if *ifp; 5046 struct brcmf_tdls_iovar_le info; 5047 int ret = 0; 5048 5049 ret = brcmf_convert_nl80211_tdls_oper(oper); 5050 if (ret < 0) 5051 return ret; 5052 5053 ifp = netdev_priv(ndev); 5054 memset(&info, 0, sizeof(info)); 5055 info.mode = (u8)ret; 5056 if (peer) 5057 memcpy(info.ea, peer, ETH_ALEN); 5058 5059 ret = brcmf_fil_iovar_data_set(ifp, "tdls_endpoint", 5060 &info, sizeof(info)); 5061 if (ret < 0) 5062 brcmf_err("tdls_endpoint iovar failed: ret=%d\n", ret); 5063 5064 return ret; 5065 } 5066 5067 static int 5068 brcmf_cfg80211_update_conn_params(struct wiphy *wiphy, 5069 struct net_device *ndev, 5070 struct cfg80211_connect_params *sme, 5071 u32 changed) 5072 { 5073 struct brcmf_if *ifp; 5074 int err; 5075 5076 if (!(changed & UPDATE_ASSOC_IES)) 5077 return 0; 5078 5079 ifp = netdev_priv(ndev); 5080 err = brcmf_vif_set_mgmt_ie(ifp->vif, BRCMF_VNDR_IE_ASSOCREQ_FLAG, 5081 sme->ie, sme->ie_len); 5082 if (err) 5083 brcmf_err("Set Assoc REQ IE Failed\n"); 5084 else 5085 brcmf_dbg(TRACE, "Applied Vndr IEs for Assoc request\n"); 5086 5087 return err; 5088 } 5089 5090 #ifdef CONFIG_PM 5091 static int 5092 brcmf_cfg80211_set_rekey_data(struct wiphy *wiphy, struct net_device *ndev, 5093 struct cfg80211_gtk_rekey_data *gtk) 5094 { 5095 struct brcmf_if *ifp = netdev_priv(ndev); 5096 struct brcmf_gtk_keyinfo_le gtk_le; 5097 int ret; 5098 5099 brcmf_dbg(TRACE, "Enter, bssidx=%d\n", ifp->bsscfgidx); 5100 5101 memcpy(gtk_le.kck, gtk->kck, sizeof(gtk_le.kck)); 5102 memcpy(gtk_le.kek, gtk->kek, sizeof(gtk_le.kek)); 5103 memcpy(gtk_le.replay_counter, gtk->replay_ctr, 5104 sizeof(gtk_le.replay_counter)); 5105 5106 ret = brcmf_fil_iovar_data_set(ifp, "gtk_key_info", >k_le, 5107 sizeof(gtk_le)); 5108 if (ret < 0) 5109 brcmf_err("gtk_key_info iovar failed: ret=%d\n", ret); 5110 5111 return ret; 5112 } 5113 #endif 5114 5115 static int brcmf_cfg80211_set_pmk(struct wiphy *wiphy, struct net_device *dev, 5116 const struct cfg80211_pmk_conf *conf) 5117 { 5118 struct brcmf_if *ifp; 5119 5120 brcmf_dbg(TRACE, "enter\n"); 5121 5122 /* expect using firmware supplicant for 1X */ 5123 ifp = netdev_priv(dev); 5124 if (WARN_ON(ifp->vif->profile.use_fwsup != BRCMF_PROFILE_FWSUP_1X)) 5125 return -EINVAL; 5126 5127 return brcmf_set_pmk(ifp, conf->pmk, conf->pmk_len); 5128 } 5129 5130 static int brcmf_cfg80211_del_pmk(struct wiphy *wiphy, struct net_device *dev, 5131 const u8 *aa) 5132 { 5133 struct brcmf_if *ifp; 5134 5135 brcmf_dbg(TRACE, "enter\n"); 5136 ifp = netdev_priv(dev); 5137 if (WARN_ON(ifp->vif->profile.use_fwsup != BRCMF_PROFILE_FWSUP_1X)) 5138 return -EINVAL; 5139 5140 return brcmf_set_pmk(ifp, NULL, 0); 5141 } 5142 5143 static struct cfg80211_ops brcmf_cfg80211_ops = { 5144 .add_virtual_intf = brcmf_cfg80211_add_iface, 5145 .del_virtual_intf = brcmf_cfg80211_del_iface, 5146 .change_virtual_intf = brcmf_cfg80211_change_iface, 5147 .scan = brcmf_cfg80211_scan, 5148 .set_wiphy_params = brcmf_cfg80211_set_wiphy_params, 5149 .join_ibss = brcmf_cfg80211_join_ibss, 5150 .leave_ibss = brcmf_cfg80211_leave_ibss, 5151 .get_station = brcmf_cfg80211_get_station, 5152 .dump_station = brcmf_cfg80211_dump_station, 5153 .set_tx_power = brcmf_cfg80211_set_tx_power, 5154 .get_tx_power = brcmf_cfg80211_get_tx_power, 5155 .add_key = brcmf_cfg80211_add_key, 5156 .del_key = brcmf_cfg80211_del_key, 5157 .get_key = brcmf_cfg80211_get_key, 5158 .set_default_key = brcmf_cfg80211_config_default_key, 5159 .set_default_mgmt_key = brcmf_cfg80211_config_default_mgmt_key, 5160 .set_power_mgmt = brcmf_cfg80211_set_power_mgmt, 5161 .connect = brcmf_cfg80211_connect, 5162 .disconnect = brcmf_cfg80211_disconnect, 5163 .suspend = brcmf_cfg80211_suspend, 5164 .resume = brcmf_cfg80211_resume, 5165 .set_pmksa = brcmf_cfg80211_set_pmksa, 5166 .del_pmksa = brcmf_cfg80211_del_pmksa, 5167 .flush_pmksa = brcmf_cfg80211_flush_pmksa, 5168 .start_ap = brcmf_cfg80211_start_ap, 5169 .stop_ap = brcmf_cfg80211_stop_ap, 5170 .change_beacon = brcmf_cfg80211_change_beacon, 5171 .del_station = brcmf_cfg80211_del_station, 5172 .change_station = brcmf_cfg80211_change_station, 5173 .sched_scan_start = brcmf_cfg80211_sched_scan_start, 5174 .sched_scan_stop = brcmf_cfg80211_sched_scan_stop, 5175 .mgmt_frame_register = brcmf_cfg80211_mgmt_frame_register, 5176 .mgmt_tx = brcmf_cfg80211_mgmt_tx, 5177 .remain_on_channel = brcmf_p2p_remain_on_channel, 5178 .cancel_remain_on_channel = brcmf_cfg80211_cancel_remain_on_channel, 5179 .get_channel = brcmf_cfg80211_get_channel, 5180 .start_p2p_device = brcmf_p2p_start_device, 5181 .stop_p2p_device = brcmf_p2p_stop_device, 5182 .crit_proto_start = brcmf_cfg80211_crit_proto_start, 5183 .crit_proto_stop = brcmf_cfg80211_crit_proto_stop, 5184 .tdls_oper = brcmf_cfg80211_tdls_oper, 5185 .update_connect_params = brcmf_cfg80211_update_conn_params, 5186 .set_pmk = brcmf_cfg80211_set_pmk, 5187 .del_pmk = brcmf_cfg80211_del_pmk, 5188 }; 5189 5190 struct brcmf_cfg80211_vif *brcmf_alloc_vif(struct brcmf_cfg80211_info *cfg, 5191 enum nl80211_iftype type) 5192 { 5193 struct brcmf_cfg80211_vif *vif_walk; 5194 struct brcmf_cfg80211_vif *vif; 5195 bool mbss; 5196 5197 brcmf_dbg(TRACE, "allocating virtual interface (size=%zu)\n", 5198 sizeof(*vif)); 5199 vif = kzalloc(sizeof(*vif), GFP_KERNEL); 5200 if (!vif) 5201 return ERR_PTR(-ENOMEM); 5202 5203 vif->wdev.wiphy = cfg->wiphy; 5204 vif->wdev.iftype = type; 5205 5206 brcmf_init_prof(&vif->profile); 5207 5208 if (type == NL80211_IFTYPE_AP) { 5209 mbss = false; 5210 list_for_each_entry(vif_walk, &cfg->vif_list, list) { 5211 if (vif_walk->wdev.iftype == NL80211_IFTYPE_AP) { 5212 mbss = true; 5213 break; 5214 } 5215 } 5216 vif->mbss = mbss; 5217 } 5218 5219 list_add_tail(&vif->list, &cfg->vif_list); 5220 return vif; 5221 } 5222 5223 void brcmf_free_vif(struct brcmf_cfg80211_vif *vif) 5224 { 5225 list_del(&vif->list); 5226 kfree(vif); 5227 } 5228 5229 void brcmf_cfg80211_free_netdev(struct net_device *ndev) 5230 { 5231 struct brcmf_cfg80211_vif *vif; 5232 struct brcmf_if *ifp; 5233 5234 ifp = netdev_priv(ndev); 5235 vif = ifp->vif; 5236 5237 if (vif) 5238 brcmf_free_vif(vif); 5239 } 5240 5241 static bool brcmf_is_linkup(struct brcmf_cfg80211_vif *vif, 5242 const struct brcmf_event_msg *e) 5243 { 5244 u32 event = e->event_code; 5245 u32 status = e->status; 5246 5247 if (vif->profile.use_fwsup == BRCMF_PROFILE_FWSUP_PSK && 5248 event == BRCMF_E_PSK_SUP && 5249 status == BRCMF_E_STATUS_FWSUP_COMPLETED) 5250 set_bit(BRCMF_VIF_STATUS_EAP_SUCCESS, &vif->sme_state); 5251 if (event == BRCMF_E_SET_SSID && status == BRCMF_E_STATUS_SUCCESS) { 5252 brcmf_dbg(CONN, "Processing set ssid\n"); 5253 memcpy(vif->profile.bssid, e->addr, ETH_ALEN); 5254 if (vif->profile.use_fwsup != BRCMF_PROFILE_FWSUP_PSK) 5255 return true; 5256 5257 set_bit(BRCMF_VIF_STATUS_ASSOC_SUCCESS, &vif->sme_state); 5258 } 5259 5260 if (test_bit(BRCMF_VIF_STATUS_EAP_SUCCESS, &vif->sme_state) && 5261 test_bit(BRCMF_VIF_STATUS_ASSOC_SUCCESS, &vif->sme_state)) { 5262 clear_bit(BRCMF_VIF_STATUS_EAP_SUCCESS, &vif->sme_state); 5263 clear_bit(BRCMF_VIF_STATUS_ASSOC_SUCCESS, &vif->sme_state); 5264 return true; 5265 } 5266 return false; 5267 } 5268 5269 static bool brcmf_is_linkdown(const struct brcmf_event_msg *e) 5270 { 5271 u32 event = e->event_code; 5272 u16 flags = e->flags; 5273 5274 if ((event == BRCMF_E_DEAUTH) || (event == BRCMF_E_DEAUTH_IND) || 5275 (event == BRCMF_E_DISASSOC_IND) || 5276 ((event == BRCMF_E_LINK) && (!(flags & BRCMF_EVENT_MSG_LINK)))) { 5277 brcmf_dbg(CONN, "Processing link down\n"); 5278 return true; 5279 } 5280 return false; 5281 } 5282 5283 static bool brcmf_is_nonetwork(struct brcmf_cfg80211_info *cfg, 5284 const struct brcmf_event_msg *e) 5285 { 5286 u32 event = e->event_code; 5287 u32 status = e->status; 5288 5289 if (event == BRCMF_E_LINK && status == BRCMF_E_STATUS_NO_NETWORKS) { 5290 brcmf_dbg(CONN, "Processing Link %s & no network found\n", 5291 e->flags & BRCMF_EVENT_MSG_LINK ? "up" : "down"); 5292 return true; 5293 } 5294 5295 if (event == BRCMF_E_SET_SSID && status != BRCMF_E_STATUS_SUCCESS) { 5296 brcmf_dbg(CONN, "Processing connecting & no network found\n"); 5297 return true; 5298 } 5299 5300 if (event == BRCMF_E_PSK_SUP && 5301 status != BRCMF_E_STATUS_FWSUP_COMPLETED) { 5302 brcmf_dbg(CONN, "Processing failed supplicant state: %u\n", 5303 status); 5304 return true; 5305 } 5306 5307 return false; 5308 } 5309 5310 static void brcmf_clear_assoc_ies(struct brcmf_cfg80211_info *cfg) 5311 { 5312 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg); 5313 5314 kfree(conn_info->req_ie); 5315 conn_info->req_ie = NULL; 5316 conn_info->req_ie_len = 0; 5317 kfree(conn_info->resp_ie); 5318 conn_info->resp_ie = NULL; 5319 conn_info->resp_ie_len = 0; 5320 } 5321 5322 static s32 brcmf_get_assoc_ies(struct brcmf_cfg80211_info *cfg, 5323 struct brcmf_if *ifp) 5324 { 5325 struct brcmf_cfg80211_assoc_ielen_le *assoc_info; 5326 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg); 5327 u32 req_len; 5328 u32 resp_len; 5329 s32 err = 0; 5330 5331 brcmf_clear_assoc_ies(cfg); 5332 5333 err = brcmf_fil_iovar_data_get(ifp, "assoc_info", 5334 cfg->extra_buf, WL_ASSOC_INFO_MAX); 5335 if (err) { 5336 brcmf_err("could not get assoc info (%d)\n", err); 5337 return err; 5338 } 5339 assoc_info = 5340 (struct brcmf_cfg80211_assoc_ielen_le *)cfg->extra_buf; 5341 req_len = le32_to_cpu(assoc_info->req_len); 5342 resp_len = le32_to_cpu(assoc_info->resp_len); 5343 if (req_len) { 5344 err = brcmf_fil_iovar_data_get(ifp, "assoc_req_ies", 5345 cfg->extra_buf, 5346 WL_ASSOC_INFO_MAX); 5347 if (err) { 5348 brcmf_err("could not get assoc req (%d)\n", err); 5349 return err; 5350 } 5351 conn_info->req_ie_len = req_len; 5352 conn_info->req_ie = 5353 kmemdup(cfg->extra_buf, conn_info->req_ie_len, 5354 GFP_KERNEL); 5355 } else { 5356 conn_info->req_ie_len = 0; 5357 conn_info->req_ie = NULL; 5358 } 5359 if (resp_len) { 5360 err = brcmf_fil_iovar_data_get(ifp, "assoc_resp_ies", 5361 cfg->extra_buf, 5362 WL_ASSOC_INFO_MAX); 5363 if (err) { 5364 brcmf_err("could not get assoc resp (%d)\n", err); 5365 return err; 5366 } 5367 conn_info->resp_ie_len = resp_len; 5368 conn_info->resp_ie = 5369 kmemdup(cfg->extra_buf, conn_info->resp_ie_len, 5370 GFP_KERNEL); 5371 } else { 5372 conn_info->resp_ie_len = 0; 5373 conn_info->resp_ie = NULL; 5374 } 5375 brcmf_dbg(CONN, "req len (%d) resp len (%d)\n", 5376 conn_info->req_ie_len, conn_info->resp_ie_len); 5377 5378 return err; 5379 } 5380 5381 static s32 5382 brcmf_bss_roaming_done(struct brcmf_cfg80211_info *cfg, 5383 struct net_device *ndev, 5384 const struct brcmf_event_msg *e) 5385 { 5386 struct brcmf_if *ifp = netdev_priv(ndev); 5387 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile; 5388 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg); 5389 struct wiphy *wiphy = cfg_to_wiphy(cfg); 5390 struct ieee80211_channel *notify_channel = NULL; 5391 struct ieee80211_supported_band *band; 5392 struct brcmf_bss_info_le *bi; 5393 struct brcmu_chan ch; 5394 struct cfg80211_roam_info roam_info = {}; 5395 u32 freq; 5396 s32 err = 0; 5397 u8 *buf; 5398 5399 brcmf_dbg(TRACE, "Enter\n"); 5400 5401 brcmf_get_assoc_ies(cfg, ifp); 5402 memcpy(profile->bssid, e->addr, ETH_ALEN); 5403 brcmf_update_bss_info(cfg, ifp); 5404 5405 buf = kzalloc(WL_BSS_INFO_MAX, GFP_KERNEL); 5406 if (buf == NULL) { 5407 err = -ENOMEM; 5408 goto done; 5409 } 5410 5411 /* data sent to dongle has to be little endian */ 5412 *(__le32 *)buf = cpu_to_le32(WL_BSS_INFO_MAX); 5413 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BSS_INFO, 5414 buf, WL_BSS_INFO_MAX); 5415 5416 if (err) 5417 goto done; 5418 5419 bi = (struct brcmf_bss_info_le *)(buf + 4); 5420 ch.chspec = le16_to_cpu(bi->chanspec); 5421 cfg->d11inf.decchspec(&ch); 5422 5423 if (ch.band == BRCMU_CHAN_BAND_2G) 5424 band = wiphy->bands[NL80211_BAND_2GHZ]; 5425 else 5426 band = wiphy->bands[NL80211_BAND_5GHZ]; 5427 5428 freq = ieee80211_channel_to_frequency(ch.control_ch_num, band->band); 5429 notify_channel = ieee80211_get_channel(wiphy, freq); 5430 5431 done: 5432 kfree(buf); 5433 5434 roam_info.channel = notify_channel; 5435 roam_info.bssid = profile->bssid; 5436 roam_info.req_ie = conn_info->req_ie; 5437 roam_info.req_ie_len = conn_info->req_ie_len; 5438 roam_info.resp_ie = conn_info->resp_ie; 5439 roam_info.resp_ie_len = conn_info->resp_ie_len; 5440 5441 cfg80211_roamed(ndev, &roam_info, GFP_KERNEL); 5442 brcmf_dbg(CONN, "Report roaming result\n"); 5443 5444 set_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state); 5445 brcmf_dbg(TRACE, "Exit\n"); 5446 return err; 5447 } 5448 5449 static s32 5450 brcmf_bss_connect_done(struct brcmf_cfg80211_info *cfg, 5451 struct net_device *ndev, const struct brcmf_event_msg *e, 5452 bool completed) 5453 { 5454 struct brcmf_if *ifp = netdev_priv(ndev); 5455 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile; 5456 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg); 5457 struct cfg80211_connect_resp_params conn_params; 5458 5459 brcmf_dbg(TRACE, "Enter\n"); 5460 5461 if (test_and_clear_bit(BRCMF_VIF_STATUS_CONNECTING, 5462 &ifp->vif->sme_state)) { 5463 memset(&conn_params, 0, sizeof(conn_params)); 5464 if (completed) { 5465 brcmf_get_assoc_ies(cfg, ifp); 5466 brcmf_update_bss_info(cfg, ifp); 5467 set_bit(BRCMF_VIF_STATUS_CONNECTED, 5468 &ifp->vif->sme_state); 5469 conn_params.status = WLAN_STATUS_SUCCESS; 5470 } else { 5471 conn_params.status = WLAN_STATUS_AUTH_TIMEOUT; 5472 } 5473 conn_params.bssid = profile->bssid; 5474 conn_params.req_ie = conn_info->req_ie; 5475 conn_params.req_ie_len = conn_info->req_ie_len; 5476 conn_params.resp_ie = conn_info->resp_ie; 5477 conn_params.resp_ie_len = conn_info->resp_ie_len; 5478 cfg80211_connect_done(ndev, &conn_params, GFP_KERNEL); 5479 brcmf_dbg(CONN, "Report connect result - connection %s\n", 5480 completed ? "succeeded" : "failed"); 5481 } 5482 brcmf_dbg(TRACE, "Exit\n"); 5483 return 0; 5484 } 5485 5486 static s32 5487 brcmf_notify_connect_status_ap(struct brcmf_cfg80211_info *cfg, 5488 struct net_device *ndev, 5489 const struct brcmf_event_msg *e, void *data) 5490 { 5491 static int generation; 5492 u32 event = e->event_code; 5493 u32 reason = e->reason; 5494 struct station_info sinfo; 5495 5496 brcmf_dbg(CONN, "event %s (%u), reason %d\n", 5497 brcmf_fweh_event_name(event), event, reason); 5498 if (event == BRCMF_E_LINK && reason == BRCMF_E_REASON_LINK_BSSCFG_DIS && 5499 ndev != cfg_to_ndev(cfg)) { 5500 brcmf_dbg(CONN, "AP mode link down\n"); 5501 complete(&cfg->vif_disabled); 5502 return 0; 5503 } 5504 5505 if (((event == BRCMF_E_ASSOC_IND) || (event == BRCMF_E_REASSOC_IND)) && 5506 (reason == BRCMF_E_STATUS_SUCCESS)) { 5507 memset(&sinfo, 0, sizeof(sinfo)); 5508 if (!data) { 5509 brcmf_err("No IEs present in ASSOC/REASSOC_IND"); 5510 return -EINVAL; 5511 } 5512 sinfo.assoc_req_ies = data; 5513 sinfo.assoc_req_ies_len = e->datalen; 5514 generation++; 5515 sinfo.generation = generation; 5516 cfg80211_new_sta(ndev, e->addr, &sinfo, GFP_KERNEL); 5517 } else if ((event == BRCMF_E_DISASSOC_IND) || 5518 (event == BRCMF_E_DEAUTH_IND) || 5519 (event == BRCMF_E_DEAUTH)) { 5520 cfg80211_del_sta(ndev, e->addr, GFP_KERNEL); 5521 } 5522 return 0; 5523 } 5524 5525 static s32 5526 brcmf_notify_connect_status(struct brcmf_if *ifp, 5527 const struct brcmf_event_msg *e, void *data) 5528 { 5529 struct brcmf_cfg80211_info *cfg = ifp->drvr->config; 5530 struct net_device *ndev = ifp->ndev; 5531 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile; 5532 struct ieee80211_channel *chan; 5533 s32 err = 0; 5534 5535 if ((e->event_code == BRCMF_E_DEAUTH) || 5536 (e->event_code == BRCMF_E_DEAUTH_IND) || 5537 (e->event_code == BRCMF_E_DISASSOC_IND) || 5538 ((e->event_code == BRCMF_E_LINK) && (!e->flags))) { 5539 brcmf_proto_delete_peer(ifp->drvr, ifp->ifidx, (u8 *)e->addr); 5540 } 5541 5542 if (brcmf_is_apmode(ifp->vif)) { 5543 err = brcmf_notify_connect_status_ap(cfg, ndev, e, data); 5544 } else if (brcmf_is_linkup(ifp->vif, e)) { 5545 brcmf_dbg(CONN, "Linkup\n"); 5546 if (brcmf_is_ibssmode(ifp->vif)) { 5547 brcmf_inform_ibss(cfg, ndev, e->addr); 5548 chan = ieee80211_get_channel(cfg->wiphy, cfg->channel); 5549 memcpy(profile->bssid, e->addr, ETH_ALEN); 5550 cfg80211_ibss_joined(ndev, e->addr, chan, GFP_KERNEL); 5551 clear_bit(BRCMF_VIF_STATUS_CONNECTING, 5552 &ifp->vif->sme_state); 5553 set_bit(BRCMF_VIF_STATUS_CONNECTED, 5554 &ifp->vif->sme_state); 5555 } else 5556 brcmf_bss_connect_done(cfg, ndev, e, true); 5557 brcmf_net_setcarrier(ifp, true); 5558 } else if (brcmf_is_linkdown(e)) { 5559 brcmf_dbg(CONN, "Linkdown\n"); 5560 if (!brcmf_is_ibssmode(ifp->vif)) { 5561 brcmf_bss_connect_done(cfg, ndev, e, false); 5562 brcmf_link_down(ifp->vif, 5563 brcmf_map_fw_linkdown_reason(e)); 5564 brcmf_init_prof(ndev_to_prof(ndev)); 5565 if (ndev != cfg_to_ndev(cfg)) 5566 complete(&cfg->vif_disabled); 5567 brcmf_net_setcarrier(ifp, false); 5568 } 5569 } else if (brcmf_is_nonetwork(cfg, e)) { 5570 if (brcmf_is_ibssmode(ifp->vif)) 5571 clear_bit(BRCMF_VIF_STATUS_CONNECTING, 5572 &ifp->vif->sme_state); 5573 else 5574 brcmf_bss_connect_done(cfg, ndev, e, false); 5575 } 5576 5577 return err; 5578 } 5579 5580 static s32 5581 brcmf_notify_roaming_status(struct brcmf_if *ifp, 5582 const struct brcmf_event_msg *e, void *data) 5583 { 5584 struct brcmf_cfg80211_info *cfg = ifp->drvr->config; 5585 u32 event = e->event_code; 5586 u32 status = e->status; 5587 5588 if (event == BRCMF_E_ROAM && status == BRCMF_E_STATUS_SUCCESS) { 5589 if (test_bit(BRCMF_VIF_STATUS_CONNECTED, 5590 &ifp->vif->sme_state)) { 5591 brcmf_bss_roaming_done(cfg, ifp->ndev, e); 5592 } else { 5593 brcmf_bss_connect_done(cfg, ifp->ndev, e, true); 5594 brcmf_net_setcarrier(ifp, true); 5595 } 5596 } 5597 5598 return 0; 5599 } 5600 5601 static s32 5602 brcmf_notify_mic_status(struct brcmf_if *ifp, 5603 const struct brcmf_event_msg *e, void *data) 5604 { 5605 u16 flags = e->flags; 5606 enum nl80211_key_type key_type; 5607 5608 if (flags & BRCMF_EVENT_MSG_GROUP) 5609 key_type = NL80211_KEYTYPE_GROUP; 5610 else 5611 key_type = NL80211_KEYTYPE_PAIRWISE; 5612 5613 cfg80211_michael_mic_failure(ifp->ndev, (u8 *)&e->addr, key_type, -1, 5614 NULL, GFP_KERNEL); 5615 5616 return 0; 5617 } 5618 5619 static s32 brcmf_notify_vif_event(struct brcmf_if *ifp, 5620 const struct brcmf_event_msg *e, void *data) 5621 { 5622 struct brcmf_cfg80211_info *cfg = ifp->drvr->config; 5623 struct brcmf_if_event *ifevent = (struct brcmf_if_event *)data; 5624 struct brcmf_cfg80211_vif_event *event = &cfg->vif_event; 5625 struct brcmf_cfg80211_vif *vif; 5626 5627 brcmf_dbg(TRACE, "Enter: action %u flags %u ifidx %u bsscfgidx %u\n", 5628 ifevent->action, ifevent->flags, ifevent->ifidx, 5629 ifevent->bsscfgidx); 5630 5631 spin_lock(&event->vif_event_lock); 5632 event->action = ifevent->action; 5633 vif = event->vif; 5634 5635 switch (ifevent->action) { 5636 case BRCMF_E_IF_ADD: 5637 /* waiting process may have timed out */ 5638 if (!cfg->vif_event.vif) { 5639 spin_unlock(&event->vif_event_lock); 5640 return -EBADF; 5641 } 5642 5643 ifp->vif = vif; 5644 vif->ifp = ifp; 5645 if (ifp->ndev) { 5646 vif->wdev.netdev = ifp->ndev; 5647 ifp->ndev->ieee80211_ptr = &vif->wdev; 5648 SET_NETDEV_DEV(ifp->ndev, wiphy_dev(cfg->wiphy)); 5649 } 5650 spin_unlock(&event->vif_event_lock); 5651 wake_up(&event->vif_wq); 5652 return 0; 5653 5654 case BRCMF_E_IF_DEL: 5655 spin_unlock(&event->vif_event_lock); 5656 /* event may not be upon user request */ 5657 if (brcmf_cfg80211_vif_event_armed(cfg)) 5658 wake_up(&event->vif_wq); 5659 return 0; 5660 5661 case BRCMF_E_IF_CHANGE: 5662 spin_unlock(&event->vif_event_lock); 5663 wake_up(&event->vif_wq); 5664 return 0; 5665 5666 default: 5667 spin_unlock(&event->vif_event_lock); 5668 break; 5669 } 5670 return -EINVAL; 5671 } 5672 5673 static void brcmf_init_conf(struct brcmf_cfg80211_conf *conf) 5674 { 5675 conf->frag_threshold = (u32)-1; 5676 conf->rts_threshold = (u32)-1; 5677 conf->retry_short = (u32)-1; 5678 conf->retry_long = (u32)-1; 5679 } 5680 5681 static void brcmf_register_event_handlers(struct brcmf_cfg80211_info *cfg) 5682 { 5683 brcmf_fweh_register(cfg->pub, BRCMF_E_LINK, 5684 brcmf_notify_connect_status); 5685 brcmf_fweh_register(cfg->pub, BRCMF_E_DEAUTH_IND, 5686 brcmf_notify_connect_status); 5687 brcmf_fweh_register(cfg->pub, BRCMF_E_DEAUTH, 5688 brcmf_notify_connect_status); 5689 brcmf_fweh_register(cfg->pub, BRCMF_E_DISASSOC_IND, 5690 brcmf_notify_connect_status); 5691 brcmf_fweh_register(cfg->pub, BRCMF_E_ASSOC_IND, 5692 brcmf_notify_connect_status); 5693 brcmf_fweh_register(cfg->pub, BRCMF_E_REASSOC_IND, 5694 brcmf_notify_connect_status); 5695 brcmf_fweh_register(cfg->pub, BRCMF_E_ROAM, 5696 brcmf_notify_roaming_status); 5697 brcmf_fweh_register(cfg->pub, BRCMF_E_MIC_ERROR, 5698 brcmf_notify_mic_status); 5699 brcmf_fweh_register(cfg->pub, BRCMF_E_SET_SSID, 5700 brcmf_notify_connect_status); 5701 brcmf_fweh_register(cfg->pub, BRCMF_E_PFN_NET_FOUND, 5702 brcmf_notify_sched_scan_results); 5703 brcmf_fweh_register(cfg->pub, BRCMF_E_IF, 5704 brcmf_notify_vif_event); 5705 brcmf_fweh_register(cfg->pub, BRCMF_E_P2P_PROBEREQ_MSG, 5706 brcmf_p2p_notify_rx_mgmt_p2p_probereq); 5707 brcmf_fweh_register(cfg->pub, BRCMF_E_P2P_DISC_LISTEN_COMPLETE, 5708 brcmf_p2p_notify_listen_complete); 5709 brcmf_fweh_register(cfg->pub, BRCMF_E_ACTION_FRAME_RX, 5710 brcmf_p2p_notify_action_frame_rx); 5711 brcmf_fweh_register(cfg->pub, BRCMF_E_ACTION_FRAME_COMPLETE, 5712 brcmf_p2p_notify_action_tx_complete); 5713 brcmf_fweh_register(cfg->pub, BRCMF_E_ACTION_FRAME_OFF_CHAN_COMPLETE, 5714 brcmf_p2p_notify_action_tx_complete); 5715 brcmf_fweh_register(cfg->pub, BRCMF_E_PSK_SUP, 5716 brcmf_notify_connect_status); 5717 } 5718 5719 static void brcmf_deinit_priv_mem(struct brcmf_cfg80211_info *cfg) 5720 { 5721 kfree(cfg->conf); 5722 cfg->conf = NULL; 5723 kfree(cfg->extra_buf); 5724 cfg->extra_buf = NULL; 5725 kfree(cfg->wowl.nd); 5726 cfg->wowl.nd = NULL; 5727 kfree(cfg->wowl.nd_info); 5728 cfg->wowl.nd_info = NULL; 5729 kfree(cfg->escan_info.escan_buf); 5730 cfg->escan_info.escan_buf = NULL; 5731 } 5732 5733 static s32 brcmf_init_priv_mem(struct brcmf_cfg80211_info *cfg) 5734 { 5735 cfg->conf = kzalloc(sizeof(*cfg->conf), GFP_KERNEL); 5736 if (!cfg->conf) 5737 goto init_priv_mem_out; 5738 cfg->extra_buf = kzalloc(WL_EXTRA_BUF_MAX, GFP_KERNEL); 5739 if (!cfg->extra_buf) 5740 goto init_priv_mem_out; 5741 cfg->wowl.nd = kzalloc(sizeof(*cfg->wowl.nd) + sizeof(u32), GFP_KERNEL); 5742 if (!cfg->wowl.nd) 5743 goto init_priv_mem_out; 5744 cfg->wowl.nd_info = kzalloc(sizeof(*cfg->wowl.nd_info) + 5745 sizeof(struct cfg80211_wowlan_nd_match *), 5746 GFP_KERNEL); 5747 if (!cfg->wowl.nd_info) 5748 goto init_priv_mem_out; 5749 cfg->escan_info.escan_buf = kzalloc(BRCMF_ESCAN_BUF_SIZE, GFP_KERNEL); 5750 if (!cfg->escan_info.escan_buf) 5751 goto init_priv_mem_out; 5752 5753 return 0; 5754 5755 init_priv_mem_out: 5756 brcmf_deinit_priv_mem(cfg); 5757 5758 return -ENOMEM; 5759 } 5760 5761 static s32 wl_init_priv(struct brcmf_cfg80211_info *cfg) 5762 { 5763 s32 err = 0; 5764 5765 cfg->scan_request = NULL; 5766 cfg->pwr_save = true; 5767 cfg->dongle_up = false; /* dongle is not up yet */ 5768 err = brcmf_init_priv_mem(cfg); 5769 if (err) 5770 return err; 5771 brcmf_register_event_handlers(cfg); 5772 mutex_init(&cfg->usr_sync); 5773 brcmf_init_escan(cfg); 5774 brcmf_init_conf(cfg->conf); 5775 init_completion(&cfg->vif_disabled); 5776 return err; 5777 } 5778 5779 static void wl_deinit_priv(struct brcmf_cfg80211_info *cfg) 5780 { 5781 cfg->dongle_up = false; /* dongle down */ 5782 brcmf_abort_scanning(cfg); 5783 brcmf_deinit_priv_mem(cfg); 5784 } 5785 5786 static void init_vif_event(struct brcmf_cfg80211_vif_event *event) 5787 { 5788 init_waitqueue_head(&event->vif_wq); 5789 spin_lock_init(&event->vif_event_lock); 5790 } 5791 5792 static s32 brcmf_dongle_roam(struct brcmf_if *ifp) 5793 { 5794 s32 err; 5795 u32 bcn_timeout; 5796 __le32 roamtrigger[2]; 5797 __le32 roam_delta[2]; 5798 5799 /* Configure beacon timeout value based upon roaming setting */ 5800 if (ifp->drvr->settings->roamoff) 5801 bcn_timeout = BRCMF_DEFAULT_BCN_TIMEOUT_ROAM_OFF; 5802 else 5803 bcn_timeout = BRCMF_DEFAULT_BCN_TIMEOUT_ROAM_ON; 5804 err = brcmf_fil_iovar_int_set(ifp, "bcn_timeout", bcn_timeout); 5805 if (err) { 5806 brcmf_err("bcn_timeout error (%d)\n", err); 5807 goto roam_setup_done; 5808 } 5809 5810 /* Enable/Disable built-in roaming to allow supplicant to take care of 5811 * roaming. 5812 */ 5813 brcmf_dbg(INFO, "Internal Roaming = %s\n", 5814 ifp->drvr->settings->roamoff ? "Off" : "On"); 5815 err = brcmf_fil_iovar_int_set(ifp, "roam_off", 5816 ifp->drvr->settings->roamoff); 5817 if (err) { 5818 brcmf_err("roam_off error (%d)\n", err); 5819 goto roam_setup_done; 5820 } 5821 5822 roamtrigger[0] = cpu_to_le32(WL_ROAM_TRIGGER_LEVEL); 5823 roamtrigger[1] = cpu_to_le32(BRCM_BAND_ALL); 5824 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_ROAM_TRIGGER, 5825 (void *)roamtrigger, sizeof(roamtrigger)); 5826 if (err) { 5827 brcmf_err("WLC_SET_ROAM_TRIGGER error (%d)\n", err); 5828 goto roam_setup_done; 5829 } 5830 5831 roam_delta[0] = cpu_to_le32(WL_ROAM_DELTA); 5832 roam_delta[1] = cpu_to_le32(BRCM_BAND_ALL); 5833 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_ROAM_DELTA, 5834 (void *)roam_delta, sizeof(roam_delta)); 5835 if (err) { 5836 brcmf_err("WLC_SET_ROAM_DELTA error (%d)\n", err); 5837 goto roam_setup_done; 5838 } 5839 5840 roam_setup_done: 5841 return err; 5842 } 5843 5844 static s32 5845 brcmf_dongle_scantime(struct brcmf_if *ifp) 5846 { 5847 s32 err = 0; 5848 5849 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_CHANNEL_TIME, 5850 BRCMF_SCAN_CHANNEL_TIME); 5851 if (err) { 5852 brcmf_err("Scan assoc time error (%d)\n", err); 5853 goto dongle_scantime_out; 5854 } 5855 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_UNASSOC_TIME, 5856 BRCMF_SCAN_UNASSOC_TIME); 5857 if (err) { 5858 brcmf_err("Scan unassoc time error (%d)\n", err); 5859 goto dongle_scantime_out; 5860 } 5861 5862 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_PASSIVE_TIME, 5863 BRCMF_SCAN_PASSIVE_TIME); 5864 if (err) { 5865 brcmf_err("Scan passive time error (%d)\n", err); 5866 goto dongle_scantime_out; 5867 } 5868 5869 dongle_scantime_out: 5870 return err; 5871 } 5872 5873 static void brcmf_update_bw40_channel_flag(struct ieee80211_channel *channel, 5874 struct brcmu_chan *ch) 5875 { 5876 u32 ht40_flag; 5877 5878 ht40_flag = channel->flags & IEEE80211_CHAN_NO_HT40; 5879 if (ch->sb == BRCMU_CHAN_SB_U) { 5880 if (ht40_flag == IEEE80211_CHAN_NO_HT40) 5881 channel->flags &= ~IEEE80211_CHAN_NO_HT40; 5882 channel->flags |= IEEE80211_CHAN_NO_HT40PLUS; 5883 } else { 5884 /* It should be one of 5885 * IEEE80211_CHAN_NO_HT40 or 5886 * IEEE80211_CHAN_NO_HT40PLUS 5887 */ 5888 channel->flags &= ~IEEE80211_CHAN_NO_HT40; 5889 if (ht40_flag == IEEE80211_CHAN_NO_HT40) 5890 channel->flags |= IEEE80211_CHAN_NO_HT40MINUS; 5891 } 5892 } 5893 5894 static int brcmf_construct_chaninfo(struct brcmf_cfg80211_info *cfg, 5895 u32 bw_cap[]) 5896 { 5897 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg)); 5898 struct ieee80211_supported_band *band; 5899 struct ieee80211_channel *channel; 5900 struct wiphy *wiphy; 5901 struct brcmf_chanspec_list *list; 5902 struct brcmu_chan ch; 5903 int err; 5904 u8 *pbuf; 5905 u32 i, j; 5906 u32 total; 5907 u32 chaninfo; 5908 5909 pbuf = kzalloc(BRCMF_DCMD_MEDLEN, GFP_KERNEL); 5910 5911 if (pbuf == NULL) 5912 return -ENOMEM; 5913 5914 list = (struct brcmf_chanspec_list *)pbuf; 5915 5916 err = brcmf_fil_iovar_data_get(ifp, "chanspecs", pbuf, 5917 BRCMF_DCMD_MEDLEN); 5918 if (err) { 5919 brcmf_err("get chanspecs error (%d)\n", err); 5920 goto fail_pbuf; 5921 } 5922 5923 wiphy = cfg_to_wiphy(cfg); 5924 band = wiphy->bands[NL80211_BAND_2GHZ]; 5925 if (band) 5926 for (i = 0; i < band->n_channels; i++) 5927 band->channels[i].flags = IEEE80211_CHAN_DISABLED; 5928 band = wiphy->bands[NL80211_BAND_5GHZ]; 5929 if (band) 5930 for (i = 0; i < band->n_channels; i++) 5931 band->channels[i].flags = IEEE80211_CHAN_DISABLED; 5932 5933 total = le32_to_cpu(list->count); 5934 for (i = 0; i < total; i++) { 5935 ch.chspec = (u16)le32_to_cpu(list->element[i]); 5936 cfg->d11inf.decchspec(&ch); 5937 5938 if (ch.band == BRCMU_CHAN_BAND_2G) { 5939 band = wiphy->bands[NL80211_BAND_2GHZ]; 5940 } else if (ch.band == BRCMU_CHAN_BAND_5G) { 5941 band = wiphy->bands[NL80211_BAND_5GHZ]; 5942 } else { 5943 brcmf_err("Invalid channel Spec. 0x%x.\n", ch.chspec); 5944 continue; 5945 } 5946 if (!band) 5947 continue; 5948 if (!(bw_cap[band->band] & WLC_BW_40MHZ_BIT) && 5949 ch.bw == BRCMU_CHAN_BW_40) 5950 continue; 5951 if (!(bw_cap[band->band] & WLC_BW_80MHZ_BIT) && 5952 ch.bw == BRCMU_CHAN_BW_80) 5953 continue; 5954 5955 channel = NULL; 5956 for (j = 0; j < band->n_channels; j++) { 5957 if (band->channels[j].hw_value == ch.control_ch_num) { 5958 channel = &band->channels[j]; 5959 break; 5960 } 5961 } 5962 if (!channel) { 5963 /* It seems firmware supports some channel we never 5964 * considered. Something new in IEEE standard? 5965 */ 5966 brcmf_err("Ignoring unexpected firmware channel %d\n", 5967 ch.control_ch_num); 5968 continue; 5969 } 5970 5971 if (channel->orig_flags & IEEE80211_CHAN_DISABLED) 5972 continue; 5973 5974 /* assuming the chanspecs order is HT20, 5975 * HT40 upper, HT40 lower, and VHT80. 5976 */ 5977 if (ch.bw == BRCMU_CHAN_BW_80) { 5978 channel->flags &= ~IEEE80211_CHAN_NO_80MHZ; 5979 } else if (ch.bw == BRCMU_CHAN_BW_40) { 5980 brcmf_update_bw40_channel_flag(channel, &ch); 5981 } else { 5982 /* enable the channel and disable other bandwidths 5983 * for now as mentioned order assure they are enabled 5984 * for subsequent chanspecs. 5985 */ 5986 channel->flags = IEEE80211_CHAN_NO_HT40 | 5987 IEEE80211_CHAN_NO_80MHZ; 5988 ch.bw = BRCMU_CHAN_BW_20; 5989 cfg->d11inf.encchspec(&ch); 5990 chaninfo = ch.chspec; 5991 err = brcmf_fil_bsscfg_int_get(ifp, "per_chan_info", 5992 &chaninfo); 5993 if (!err) { 5994 if (chaninfo & WL_CHAN_RADAR) 5995 channel->flags |= 5996 (IEEE80211_CHAN_RADAR | 5997 IEEE80211_CHAN_NO_IR); 5998 if (chaninfo & WL_CHAN_PASSIVE) 5999 channel->flags |= 6000 IEEE80211_CHAN_NO_IR; 6001 } 6002 } 6003 } 6004 6005 fail_pbuf: 6006 kfree(pbuf); 6007 return err; 6008 } 6009 6010 static int brcmf_enable_bw40_2g(struct brcmf_cfg80211_info *cfg) 6011 { 6012 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg)); 6013 struct ieee80211_supported_band *band; 6014 struct brcmf_fil_bwcap_le band_bwcap; 6015 struct brcmf_chanspec_list *list; 6016 u8 *pbuf; 6017 u32 val; 6018 int err; 6019 struct brcmu_chan ch; 6020 u32 num_chan; 6021 int i, j; 6022 6023 /* verify support for bw_cap command */ 6024 val = WLC_BAND_5G; 6025 err = brcmf_fil_iovar_int_get(ifp, "bw_cap", &val); 6026 6027 if (!err) { 6028 /* only set 2G bandwidth using bw_cap command */ 6029 band_bwcap.band = cpu_to_le32(WLC_BAND_2G); 6030 band_bwcap.bw_cap = cpu_to_le32(WLC_BW_CAP_40MHZ); 6031 err = brcmf_fil_iovar_data_set(ifp, "bw_cap", &band_bwcap, 6032 sizeof(band_bwcap)); 6033 } else { 6034 brcmf_dbg(INFO, "fallback to mimo_bw_cap\n"); 6035 val = WLC_N_BW_40ALL; 6036 err = brcmf_fil_iovar_int_set(ifp, "mimo_bw_cap", val); 6037 } 6038 6039 if (!err) { 6040 /* update channel info in 2G band */ 6041 pbuf = kzalloc(BRCMF_DCMD_MEDLEN, GFP_KERNEL); 6042 6043 if (pbuf == NULL) 6044 return -ENOMEM; 6045 6046 ch.band = BRCMU_CHAN_BAND_2G; 6047 ch.bw = BRCMU_CHAN_BW_40; 6048 ch.sb = BRCMU_CHAN_SB_NONE; 6049 ch.chnum = 0; 6050 cfg->d11inf.encchspec(&ch); 6051 6052 /* pass encoded chanspec in query */ 6053 *(__le16 *)pbuf = cpu_to_le16(ch.chspec); 6054 6055 err = brcmf_fil_iovar_data_get(ifp, "chanspecs", pbuf, 6056 BRCMF_DCMD_MEDLEN); 6057 if (err) { 6058 brcmf_err("get chanspecs error (%d)\n", err); 6059 kfree(pbuf); 6060 return err; 6061 } 6062 6063 band = cfg_to_wiphy(cfg)->bands[NL80211_BAND_2GHZ]; 6064 list = (struct brcmf_chanspec_list *)pbuf; 6065 num_chan = le32_to_cpu(list->count); 6066 for (i = 0; i < num_chan; i++) { 6067 ch.chspec = (u16)le32_to_cpu(list->element[i]); 6068 cfg->d11inf.decchspec(&ch); 6069 if (WARN_ON(ch.band != BRCMU_CHAN_BAND_2G)) 6070 continue; 6071 if (WARN_ON(ch.bw != BRCMU_CHAN_BW_40)) 6072 continue; 6073 for (j = 0; j < band->n_channels; j++) { 6074 if (band->channels[j].hw_value == ch.control_ch_num) 6075 break; 6076 } 6077 if (WARN_ON(j == band->n_channels)) 6078 continue; 6079 6080 brcmf_update_bw40_channel_flag(&band->channels[j], &ch); 6081 } 6082 kfree(pbuf); 6083 } 6084 return err; 6085 } 6086 6087 static void brcmf_get_bwcap(struct brcmf_if *ifp, u32 bw_cap[]) 6088 { 6089 u32 band, mimo_bwcap; 6090 int err; 6091 6092 band = WLC_BAND_2G; 6093 err = brcmf_fil_iovar_int_get(ifp, "bw_cap", &band); 6094 if (!err) { 6095 bw_cap[NL80211_BAND_2GHZ] = band; 6096 band = WLC_BAND_5G; 6097 err = brcmf_fil_iovar_int_get(ifp, "bw_cap", &band); 6098 if (!err) { 6099 bw_cap[NL80211_BAND_5GHZ] = band; 6100 return; 6101 } 6102 WARN_ON(1); 6103 return; 6104 } 6105 brcmf_dbg(INFO, "fallback to mimo_bw_cap info\n"); 6106 mimo_bwcap = 0; 6107 err = brcmf_fil_iovar_int_get(ifp, "mimo_bw_cap", &mimo_bwcap); 6108 if (err) 6109 /* assume 20MHz if firmware does not give a clue */ 6110 mimo_bwcap = WLC_N_BW_20ALL; 6111 6112 switch (mimo_bwcap) { 6113 case WLC_N_BW_40ALL: 6114 bw_cap[NL80211_BAND_2GHZ] |= WLC_BW_40MHZ_BIT; 6115 /* fall-thru */ 6116 case WLC_N_BW_20IN2G_40IN5G: 6117 bw_cap[NL80211_BAND_5GHZ] |= WLC_BW_40MHZ_BIT; 6118 /* fall-thru */ 6119 case WLC_N_BW_20ALL: 6120 bw_cap[NL80211_BAND_2GHZ] |= WLC_BW_20MHZ_BIT; 6121 bw_cap[NL80211_BAND_5GHZ] |= WLC_BW_20MHZ_BIT; 6122 break; 6123 default: 6124 brcmf_err("invalid mimo_bw_cap value\n"); 6125 } 6126 } 6127 6128 static void brcmf_update_ht_cap(struct ieee80211_supported_band *band, 6129 u32 bw_cap[2], u32 nchain) 6130 { 6131 band->ht_cap.ht_supported = true; 6132 if (bw_cap[band->band] & WLC_BW_40MHZ_BIT) { 6133 band->ht_cap.cap |= IEEE80211_HT_CAP_SGI_40; 6134 band->ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; 6135 } 6136 band->ht_cap.cap |= IEEE80211_HT_CAP_SGI_20; 6137 band->ht_cap.cap |= IEEE80211_HT_CAP_DSSSCCK40; 6138 band->ht_cap.ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K; 6139 band->ht_cap.ampdu_density = IEEE80211_HT_MPDU_DENSITY_16; 6140 memset(band->ht_cap.mcs.rx_mask, 0xff, nchain); 6141 band->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED; 6142 } 6143 6144 static __le16 brcmf_get_mcs_map(u32 nchain, enum ieee80211_vht_mcs_support supp) 6145 { 6146 u16 mcs_map; 6147 int i; 6148 6149 for (i = 0, mcs_map = 0xFFFF; i < nchain; i++) 6150 mcs_map = (mcs_map << 2) | supp; 6151 6152 return cpu_to_le16(mcs_map); 6153 } 6154 6155 static void brcmf_update_vht_cap(struct ieee80211_supported_band *band, 6156 u32 bw_cap[2], u32 nchain, u32 txstreams, 6157 u32 txbf_bfe_cap, u32 txbf_bfr_cap) 6158 { 6159 __le16 mcs_map; 6160 6161 /* not allowed in 2.4G band */ 6162 if (band->band == NL80211_BAND_2GHZ) 6163 return; 6164 6165 band->vht_cap.vht_supported = true; 6166 /* 80MHz is mandatory */ 6167 band->vht_cap.cap |= IEEE80211_VHT_CAP_SHORT_GI_80; 6168 if (bw_cap[band->band] & WLC_BW_160MHZ_BIT) { 6169 band->vht_cap.cap |= IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ; 6170 band->vht_cap.cap |= IEEE80211_VHT_CAP_SHORT_GI_160; 6171 } 6172 /* all support 256-QAM */ 6173 mcs_map = brcmf_get_mcs_map(nchain, IEEE80211_VHT_MCS_SUPPORT_0_9); 6174 band->vht_cap.vht_mcs.rx_mcs_map = mcs_map; 6175 band->vht_cap.vht_mcs.tx_mcs_map = mcs_map; 6176 6177 /* Beamforming support information */ 6178 if (txbf_bfe_cap & BRCMF_TXBF_SU_BFE_CAP) 6179 band->vht_cap.cap |= IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE; 6180 if (txbf_bfe_cap & BRCMF_TXBF_MU_BFE_CAP) 6181 band->vht_cap.cap |= IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE; 6182 if (txbf_bfr_cap & BRCMF_TXBF_SU_BFR_CAP) 6183 band->vht_cap.cap |= IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE; 6184 if (txbf_bfr_cap & BRCMF_TXBF_MU_BFR_CAP) 6185 band->vht_cap.cap |= IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE; 6186 6187 if ((txbf_bfe_cap || txbf_bfr_cap) && (txstreams > 1)) { 6188 band->vht_cap.cap |= 6189 (2 << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT); 6190 band->vht_cap.cap |= ((txstreams - 1) << 6191 IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT); 6192 band->vht_cap.cap |= 6193 IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB; 6194 } 6195 } 6196 6197 static int brcmf_setup_wiphybands(struct wiphy *wiphy) 6198 { 6199 struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy); 6200 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg)); 6201 u32 nmode = 0; 6202 u32 vhtmode = 0; 6203 u32 bw_cap[2] = { WLC_BW_20MHZ_BIT, WLC_BW_20MHZ_BIT }; 6204 u32 rxchain; 6205 u32 nchain; 6206 int err; 6207 s32 i; 6208 struct ieee80211_supported_band *band; 6209 u32 txstreams = 0; 6210 u32 txbf_bfe_cap = 0; 6211 u32 txbf_bfr_cap = 0; 6212 6213 (void)brcmf_fil_iovar_int_get(ifp, "vhtmode", &vhtmode); 6214 err = brcmf_fil_iovar_int_get(ifp, "nmode", &nmode); 6215 if (err) { 6216 brcmf_err("nmode error (%d)\n", err); 6217 } else { 6218 brcmf_get_bwcap(ifp, bw_cap); 6219 } 6220 brcmf_dbg(INFO, "nmode=%d, vhtmode=%d, bw_cap=(%d, %d)\n", 6221 nmode, vhtmode, bw_cap[NL80211_BAND_2GHZ], 6222 bw_cap[NL80211_BAND_5GHZ]); 6223 6224 err = brcmf_fil_iovar_int_get(ifp, "rxchain", &rxchain); 6225 if (err) { 6226 brcmf_err("rxchain error (%d)\n", err); 6227 nchain = 1; 6228 } else { 6229 for (nchain = 0; rxchain; nchain++) 6230 rxchain = rxchain & (rxchain - 1); 6231 } 6232 brcmf_dbg(INFO, "nchain=%d\n", nchain); 6233 6234 err = brcmf_construct_chaninfo(cfg, bw_cap); 6235 if (err) { 6236 brcmf_err("brcmf_construct_chaninfo failed (%d)\n", err); 6237 return err; 6238 } 6239 6240 if (vhtmode) { 6241 (void)brcmf_fil_iovar_int_get(ifp, "txstreams", &txstreams); 6242 (void)brcmf_fil_iovar_int_get(ifp, "txbf_bfe_cap", 6243 &txbf_bfe_cap); 6244 (void)brcmf_fil_iovar_int_get(ifp, "txbf_bfr_cap", 6245 &txbf_bfr_cap); 6246 } 6247 6248 wiphy = cfg_to_wiphy(cfg); 6249 for (i = 0; i < ARRAY_SIZE(wiphy->bands); i++) { 6250 band = wiphy->bands[i]; 6251 if (band == NULL) 6252 continue; 6253 6254 if (nmode) 6255 brcmf_update_ht_cap(band, bw_cap, nchain); 6256 if (vhtmode) 6257 brcmf_update_vht_cap(band, bw_cap, nchain, txstreams, 6258 txbf_bfe_cap, txbf_bfr_cap); 6259 } 6260 6261 return 0; 6262 } 6263 6264 static const struct ieee80211_txrx_stypes 6265 brcmf_txrx_stypes[NUM_NL80211_IFTYPES] = { 6266 [NL80211_IFTYPE_STATION] = { 6267 .tx = 0xffff, 6268 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 6269 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) 6270 }, 6271 [NL80211_IFTYPE_P2P_CLIENT] = { 6272 .tx = 0xffff, 6273 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 6274 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) 6275 }, 6276 [NL80211_IFTYPE_P2P_GO] = { 6277 .tx = 0xffff, 6278 .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) | 6279 BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | 6280 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | 6281 BIT(IEEE80211_STYPE_DISASSOC >> 4) | 6282 BIT(IEEE80211_STYPE_AUTH >> 4) | 6283 BIT(IEEE80211_STYPE_DEAUTH >> 4) | 6284 BIT(IEEE80211_STYPE_ACTION >> 4) 6285 }, 6286 [NL80211_IFTYPE_P2P_DEVICE] = { 6287 .tx = 0xffff, 6288 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 6289 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) 6290 } 6291 }; 6292 6293 /** 6294 * brcmf_setup_ifmodes() - determine interface modes and combinations. 6295 * 6296 * @wiphy: wiphy object. 6297 * @ifp: interface object needed for feat module api. 6298 * 6299 * The interface modes and combinations are determined dynamically here 6300 * based on firmware functionality. 6301 * 6302 * no p2p and no mbss: 6303 * 6304 * #STA <= 1, #AP <= 1, channels = 1, 2 total 6305 * 6306 * no p2p and mbss: 6307 * 6308 * #STA <= 1, #AP <= 1, channels = 1, 2 total 6309 * #AP <= 4, matching BI, channels = 1, 4 total 6310 * 6311 * p2p, no mchan, and mbss: 6312 * 6313 * #STA <= 1, #P2P-DEV <= 1, #{P2P-CL, P2P-GO} <= 1, channels = 1, 3 total 6314 * #STA <= 1, #P2P-DEV <= 1, #AP <= 1, #P2P-CL <= 1, channels = 1, 4 total 6315 * #AP <= 4, matching BI, channels = 1, 4 total 6316 * 6317 * p2p, mchan, and mbss: 6318 * 6319 * #STA <= 1, #P2P-DEV <= 1, #{P2P-CL, P2P-GO} <= 1, channels = 2, 3 total 6320 * #STA <= 1, #P2P-DEV <= 1, #AP <= 1, #P2P-CL <= 1, channels = 1, 4 total 6321 * #AP <= 4, matching BI, channels = 1, 4 total 6322 */ 6323 static int brcmf_setup_ifmodes(struct wiphy *wiphy, struct brcmf_if *ifp) 6324 { 6325 struct ieee80211_iface_combination *combo = NULL; 6326 struct ieee80211_iface_limit *c0_limits = NULL; 6327 struct ieee80211_iface_limit *p2p_limits = NULL; 6328 struct ieee80211_iface_limit *mbss_limits = NULL; 6329 bool mbss, p2p; 6330 int i, c, n_combos; 6331 6332 mbss = brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MBSS); 6333 p2p = brcmf_feat_is_enabled(ifp, BRCMF_FEAT_P2P); 6334 6335 n_combos = 1 + !!p2p + !!mbss; 6336 combo = kcalloc(n_combos, sizeof(*combo), GFP_KERNEL); 6337 if (!combo) 6338 goto err; 6339 6340 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 6341 BIT(NL80211_IFTYPE_ADHOC) | 6342 BIT(NL80211_IFTYPE_AP); 6343 6344 c = 0; 6345 i = 0; 6346 c0_limits = kcalloc(p2p ? 3 : 2, sizeof(*c0_limits), GFP_KERNEL); 6347 if (!c0_limits) 6348 goto err; 6349 c0_limits[i].max = 1; 6350 c0_limits[i++].types = BIT(NL80211_IFTYPE_STATION); 6351 if (p2p) { 6352 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MCHAN)) 6353 combo[c].num_different_channels = 2; 6354 else 6355 combo[c].num_different_channels = 1; 6356 wiphy->interface_modes |= BIT(NL80211_IFTYPE_P2P_CLIENT) | 6357 BIT(NL80211_IFTYPE_P2P_GO) | 6358 BIT(NL80211_IFTYPE_P2P_DEVICE); 6359 c0_limits[i].max = 1; 6360 c0_limits[i++].types = BIT(NL80211_IFTYPE_P2P_DEVICE); 6361 c0_limits[i].max = 1; 6362 c0_limits[i++].types = BIT(NL80211_IFTYPE_P2P_CLIENT) | 6363 BIT(NL80211_IFTYPE_P2P_GO); 6364 } else { 6365 combo[c].num_different_channels = 1; 6366 c0_limits[i].max = 1; 6367 c0_limits[i++].types = BIT(NL80211_IFTYPE_AP); 6368 } 6369 combo[c].max_interfaces = i; 6370 combo[c].n_limits = i; 6371 combo[c].limits = c0_limits; 6372 6373 if (p2p) { 6374 c++; 6375 i = 0; 6376 p2p_limits = kcalloc(4, sizeof(*p2p_limits), GFP_KERNEL); 6377 if (!p2p_limits) 6378 goto err; 6379 p2p_limits[i].max = 1; 6380 p2p_limits[i++].types = BIT(NL80211_IFTYPE_STATION); 6381 p2p_limits[i].max = 1; 6382 p2p_limits[i++].types = BIT(NL80211_IFTYPE_AP); 6383 p2p_limits[i].max = 1; 6384 p2p_limits[i++].types = BIT(NL80211_IFTYPE_P2P_CLIENT); 6385 p2p_limits[i].max = 1; 6386 p2p_limits[i++].types = BIT(NL80211_IFTYPE_P2P_DEVICE); 6387 combo[c].num_different_channels = 1; 6388 combo[c].max_interfaces = i; 6389 combo[c].n_limits = i; 6390 combo[c].limits = p2p_limits; 6391 } 6392 6393 if (mbss) { 6394 c++; 6395 i = 0; 6396 mbss_limits = kcalloc(1, sizeof(*mbss_limits), GFP_KERNEL); 6397 if (!mbss_limits) 6398 goto err; 6399 mbss_limits[i].max = 4; 6400 mbss_limits[i++].types = BIT(NL80211_IFTYPE_AP); 6401 combo[c].beacon_int_infra_match = true; 6402 combo[c].num_different_channels = 1; 6403 combo[c].max_interfaces = 4; 6404 combo[c].n_limits = i; 6405 combo[c].limits = mbss_limits; 6406 } 6407 6408 wiphy->n_iface_combinations = n_combos; 6409 wiphy->iface_combinations = combo; 6410 return 0; 6411 6412 err: 6413 kfree(c0_limits); 6414 kfree(p2p_limits); 6415 kfree(mbss_limits); 6416 kfree(combo); 6417 return -ENOMEM; 6418 } 6419 6420 #ifdef CONFIG_PM 6421 static const struct wiphy_wowlan_support brcmf_wowlan_support = { 6422 .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT, 6423 .n_patterns = BRCMF_WOWL_MAXPATTERNS, 6424 .pattern_max_len = BRCMF_WOWL_MAXPATTERNSIZE, 6425 .pattern_min_len = 1, 6426 .max_pkt_offset = 1500, 6427 }; 6428 #endif 6429 6430 static void brcmf_wiphy_wowl_params(struct wiphy *wiphy, struct brcmf_if *ifp) 6431 { 6432 #ifdef CONFIG_PM 6433 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 6434 struct wiphy_wowlan_support *wowl; 6435 6436 wowl = kmemdup(&brcmf_wowlan_support, sizeof(brcmf_wowlan_support), 6437 GFP_KERNEL); 6438 if (!wowl) { 6439 brcmf_err("only support basic wowlan features\n"); 6440 wiphy->wowlan = &brcmf_wowlan_support; 6441 return; 6442 } 6443 6444 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_PNO)) { 6445 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_WOWL_ND)) { 6446 wowl->flags |= WIPHY_WOWLAN_NET_DETECT; 6447 wowl->max_nd_match_sets = BRCMF_PNO_MAX_PFN_COUNT; 6448 init_waitqueue_head(&cfg->wowl.nd_data_wait); 6449 } 6450 } 6451 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_WOWL_GTK)) { 6452 wowl->flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY; 6453 wowl->flags |= WIPHY_WOWLAN_GTK_REKEY_FAILURE; 6454 } 6455 6456 wiphy->wowlan = wowl; 6457 #endif 6458 } 6459 6460 static int brcmf_setup_wiphy(struct wiphy *wiphy, struct brcmf_if *ifp) 6461 { 6462 struct brcmf_pub *drvr = ifp->drvr; 6463 const struct ieee80211_iface_combination *combo; 6464 struct ieee80211_supported_band *band; 6465 u16 max_interfaces = 0; 6466 bool gscan; 6467 __le32 bandlist[3]; 6468 u32 n_bands; 6469 int err, i; 6470 6471 wiphy->max_scan_ssids = WL_NUM_SCAN_MAX; 6472 wiphy->max_scan_ie_len = BRCMF_SCAN_IE_LEN_MAX; 6473 wiphy->max_num_pmkids = BRCMF_MAXPMKID; 6474 6475 err = brcmf_setup_ifmodes(wiphy, ifp); 6476 if (err) 6477 return err; 6478 6479 for (i = 0, combo = wiphy->iface_combinations; 6480 i < wiphy->n_iface_combinations; i++, combo++) { 6481 max_interfaces = max(max_interfaces, combo->max_interfaces); 6482 } 6483 6484 for (i = 0; i < max_interfaces && i < ARRAY_SIZE(drvr->addresses); 6485 i++) { 6486 u8 *addr = drvr->addresses[i].addr; 6487 6488 memcpy(addr, drvr->mac, ETH_ALEN); 6489 if (i) { 6490 addr[0] |= BIT(1); 6491 addr[ETH_ALEN - 1] ^= i; 6492 } 6493 } 6494 wiphy->addresses = drvr->addresses; 6495 wiphy->n_addresses = i; 6496 6497 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; 6498 wiphy->cipher_suites = brcmf_cipher_suites; 6499 wiphy->n_cipher_suites = ARRAY_SIZE(brcmf_cipher_suites); 6500 if (!brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MFP)) 6501 wiphy->n_cipher_suites--; 6502 wiphy->bss_select_support = BIT(NL80211_BSS_SELECT_ATTR_RSSI) | 6503 BIT(NL80211_BSS_SELECT_ATTR_BAND_PREF) | 6504 BIT(NL80211_BSS_SELECT_ATTR_RSSI_ADJUST); 6505 6506 wiphy->flags |= WIPHY_FLAG_NETNS_OK | 6507 WIPHY_FLAG_PS_ON_BY_DEFAULT | 6508 WIPHY_FLAG_OFFCHAN_TX | 6509 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL; 6510 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_TDLS)) 6511 wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS; 6512 if (!ifp->drvr->settings->roamoff) 6513 wiphy->flags |= WIPHY_FLAG_SUPPORTS_FW_ROAM; 6514 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_FWSUP)) { 6515 wiphy_ext_feature_set(wiphy, 6516 NL80211_EXT_FEATURE_4WAY_HANDSHAKE_STA_PSK); 6517 wiphy_ext_feature_set(wiphy, 6518 NL80211_EXT_FEATURE_4WAY_HANDSHAKE_STA_1X); 6519 } 6520 wiphy->mgmt_stypes = brcmf_txrx_stypes; 6521 wiphy->max_remain_on_channel_duration = 5000; 6522 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_PNO)) { 6523 gscan = brcmf_feat_is_enabled(ifp, BRCMF_FEAT_GSCAN); 6524 brcmf_pno_wiphy_params(wiphy, gscan); 6525 } 6526 /* vendor commands/events support */ 6527 wiphy->vendor_commands = brcmf_vendor_cmds; 6528 wiphy->n_vendor_commands = BRCMF_VNDR_CMDS_LAST - 1; 6529 6530 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_WOWL)) 6531 brcmf_wiphy_wowl_params(wiphy, ifp); 6532 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BANDLIST, &bandlist, 6533 sizeof(bandlist)); 6534 if (err) { 6535 brcmf_err("could not obtain band info: err=%d\n", err); 6536 return err; 6537 } 6538 /* first entry in bandlist is number of bands */ 6539 n_bands = le32_to_cpu(bandlist[0]); 6540 for (i = 1; i <= n_bands && i < ARRAY_SIZE(bandlist); i++) { 6541 if (bandlist[i] == cpu_to_le32(WLC_BAND_2G)) { 6542 band = kmemdup(&__wl_band_2ghz, sizeof(__wl_band_2ghz), 6543 GFP_KERNEL); 6544 if (!band) 6545 return -ENOMEM; 6546 6547 band->channels = kmemdup(&__wl_2ghz_channels, 6548 sizeof(__wl_2ghz_channels), 6549 GFP_KERNEL); 6550 if (!band->channels) { 6551 kfree(band); 6552 return -ENOMEM; 6553 } 6554 6555 band->n_channels = ARRAY_SIZE(__wl_2ghz_channels); 6556 wiphy->bands[NL80211_BAND_2GHZ] = band; 6557 } 6558 if (bandlist[i] == cpu_to_le32(WLC_BAND_5G)) { 6559 band = kmemdup(&__wl_band_5ghz, sizeof(__wl_band_5ghz), 6560 GFP_KERNEL); 6561 if (!band) 6562 return -ENOMEM; 6563 6564 band->channels = kmemdup(&__wl_5ghz_channels, 6565 sizeof(__wl_5ghz_channels), 6566 GFP_KERNEL); 6567 if (!band->channels) { 6568 kfree(band); 6569 return -ENOMEM; 6570 } 6571 6572 band->n_channels = ARRAY_SIZE(__wl_5ghz_channels); 6573 wiphy->bands[NL80211_BAND_5GHZ] = band; 6574 } 6575 } 6576 6577 wiphy_read_of_freq_limits(wiphy); 6578 6579 return 0; 6580 } 6581 6582 static s32 brcmf_config_dongle(struct brcmf_cfg80211_info *cfg) 6583 { 6584 struct net_device *ndev; 6585 struct wireless_dev *wdev; 6586 struct brcmf_if *ifp; 6587 s32 power_mode; 6588 s32 err = 0; 6589 6590 if (cfg->dongle_up) 6591 return err; 6592 6593 ndev = cfg_to_ndev(cfg); 6594 wdev = ndev->ieee80211_ptr; 6595 ifp = netdev_priv(ndev); 6596 6597 /* make sure RF is ready for work */ 6598 brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 0); 6599 6600 brcmf_dongle_scantime(ifp); 6601 6602 power_mode = cfg->pwr_save ? PM_FAST : PM_OFF; 6603 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM, power_mode); 6604 if (err) 6605 goto default_conf_out; 6606 brcmf_dbg(INFO, "power save set to %s\n", 6607 (power_mode ? "enabled" : "disabled")); 6608 6609 err = brcmf_dongle_roam(ifp); 6610 if (err) 6611 goto default_conf_out; 6612 err = brcmf_cfg80211_change_iface(wdev->wiphy, ndev, wdev->iftype, 6613 NULL); 6614 if (err) 6615 goto default_conf_out; 6616 6617 brcmf_configure_arp_nd_offload(ifp, true); 6618 6619 cfg->dongle_up = true; 6620 default_conf_out: 6621 6622 return err; 6623 6624 } 6625 6626 static s32 __brcmf_cfg80211_up(struct brcmf_if *ifp) 6627 { 6628 set_bit(BRCMF_VIF_STATUS_READY, &ifp->vif->sme_state); 6629 6630 return brcmf_config_dongle(ifp->drvr->config); 6631 } 6632 6633 static s32 __brcmf_cfg80211_down(struct brcmf_if *ifp) 6634 { 6635 struct brcmf_cfg80211_info *cfg = ifp->drvr->config; 6636 6637 /* 6638 * While going down, if associated with AP disassociate 6639 * from AP to save power 6640 */ 6641 if (check_vif_up(ifp->vif)) { 6642 brcmf_link_down(ifp->vif, WLAN_REASON_UNSPECIFIED); 6643 6644 /* Make sure WPA_Supplicant receives all the event 6645 generated due to DISASSOC call to the fw to keep 6646 the state fw and WPA_Supplicant state consistent 6647 */ 6648 brcmf_delay(500); 6649 } 6650 6651 brcmf_abort_scanning(cfg); 6652 clear_bit(BRCMF_VIF_STATUS_READY, &ifp->vif->sme_state); 6653 6654 return 0; 6655 } 6656 6657 s32 brcmf_cfg80211_up(struct net_device *ndev) 6658 { 6659 struct brcmf_if *ifp = netdev_priv(ndev); 6660 struct brcmf_cfg80211_info *cfg = ifp->drvr->config; 6661 s32 err = 0; 6662 6663 mutex_lock(&cfg->usr_sync); 6664 err = __brcmf_cfg80211_up(ifp); 6665 mutex_unlock(&cfg->usr_sync); 6666 6667 return err; 6668 } 6669 6670 s32 brcmf_cfg80211_down(struct net_device *ndev) 6671 { 6672 struct brcmf_if *ifp = netdev_priv(ndev); 6673 struct brcmf_cfg80211_info *cfg = ifp->drvr->config; 6674 s32 err = 0; 6675 6676 mutex_lock(&cfg->usr_sync); 6677 err = __brcmf_cfg80211_down(ifp); 6678 mutex_unlock(&cfg->usr_sync); 6679 6680 return err; 6681 } 6682 6683 enum nl80211_iftype brcmf_cfg80211_get_iftype(struct brcmf_if *ifp) 6684 { 6685 struct wireless_dev *wdev = &ifp->vif->wdev; 6686 6687 return wdev->iftype; 6688 } 6689 6690 bool brcmf_get_vif_state_any(struct brcmf_cfg80211_info *cfg, 6691 unsigned long state) 6692 { 6693 struct brcmf_cfg80211_vif *vif; 6694 6695 list_for_each_entry(vif, &cfg->vif_list, list) { 6696 if (test_bit(state, &vif->sme_state)) 6697 return true; 6698 } 6699 return false; 6700 } 6701 6702 static inline bool vif_event_equals(struct brcmf_cfg80211_vif_event *event, 6703 u8 action) 6704 { 6705 u8 evt_action; 6706 6707 spin_lock(&event->vif_event_lock); 6708 evt_action = event->action; 6709 spin_unlock(&event->vif_event_lock); 6710 return evt_action == action; 6711 } 6712 6713 void brcmf_cfg80211_arm_vif_event(struct brcmf_cfg80211_info *cfg, 6714 struct brcmf_cfg80211_vif *vif) 6715 { 6716 struct brcmf_cfg80211_vif_event *event = &cfg->vif_event; 6717 6718 spin_lock(&event->vif_event_lock); 6719 event->vif = vif; 6720 event->action = 0; 6721 spin_unlock(&event->vif_event_lock); 6722 } 6723 6724 bool brcmf_cfg80211_vif_event_armed(struct brcmf_cfg80211_info *cfg) 6725 { 6726 struct brcmf_cfg80211_vif_event *event = &cfg->vif_event; 6727 bool armed; 6728 6729 spin_lock(&event->vif_event_lock); 6730 armed = event->vif != NULL; 6731 spin_unlock(&event->vif_event_lock); 6732 6733 return armed; 6734 } 6735 6736 int brcmf_cfg80211_wait_vif_event(struct brcmf_cfg80211_info *cfg, 6737 u8 action, ulong timeout) 6738 { 6739 struct brcmf_cfg80211_vif_event *event = &cfg->vif_event; 6740 6741 return wait_event_timeout(event->vif_wq, 6742 vif_event_equals(event, action), timeout); 6743 } 6744 6745 static s32 brcmf_translate_country_code(struct brcmf_pub *drvr, char alpha2[2], 6746 struct brcmf_fil_country_le *ccreq) 6747 { 6748 struct brcmfmac_pd_cc *country_codes; 6749 struct brcmfmac_pd_cc_entry *cc; 6750 s32 found_index; 6751 int i; 6752 6753 country_codes = drvr->settings->country_codes; 6754 if (!country_codes) { 6755 brcmf_dbg(TRACE, "No country codes configured for device\n"); 6756 return -EINVAL; 6757 } 6758 6759 if ((alpha2[0] == ccreq->country_abbrev[0]) && 6760 (alpha2[1] == ccreq->country_abbrev[1])) { 6761 brcmf_dbg(TRACE, "Country code already set\n"); 6762 return -EAGAIN; 6763 } 6764 6765 found_index = -1; 6766 for (i = 0; i < country_codes->table_size; i++) { 6767 cc = &country_codes->table[i]; 6768 if ((cc->iso3166[0] == '\0') && (found_index == -1)) 6769 found_index = i; 6770 if ((cc->iso3166[0] == alpha2[0]) && 6771 (cc->iso3166[1] == alpha2[1])) { 6772 found_index = i; 6773 break; 6774 } 6775 } 6776 if (found_index == -1) { 6777 brcmf_dbg(TRACE, "No country code match found\n"); 6778 return -EINVAL; 6779 } 6780 memset(ccreq, 0, sizeof(*ccreq)); 6781 ccreq->rev = cpu_to_le32(country_codes->table[found_index].rev); 6782 memcpy(ccreq->ccode, country_codes->table[found_index].cc, 6783 BRCMF_COUNTRY_BUF_SZ); 6784 ccreq->country_abbrev[0] = alpha2[0]; 6785 ccreq->country_abbrev[1] = alpha2[1]; 6786 ccreq->country_abbrev[2] = 0; 6787 6788 return 0; 6789 } 6790 6791 static void brcmf_cfg80211_reg_notifier(struct wiphy *wiphy, 6792 struct regulatory_request *req) 6793 { 6794 struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy); 6795 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg)); 6796 struct brcmf_fil_country_le ccreq; 6797 s32 err; 6798 int i; 6799 6800 /* The country code gets set to "00" by default at boot, ignore */ 6801 if (req->alpha2[0] == '0' && req->alpha2[1] == '0') 6802 return; 6803 6804 /* ignore non-ISO3166 country codes */ 6805 for (i = 0; i < sizeof(req->alpha2); i++) 6806 if (req->alpha2[i] < 'A' || req->alpha2[i] > 'Z') { 6807 brcmf_err("not an ISO3166 code (0x%02x 0x%02x)\n", 6808 req->alpha2[0], req->alpha2[1]); 6809 return; 6810 } 6811 6812 brcmf_dbg(TRACE, "Enter: initiator=%d, alpha=%c%c\n", req->initiator, 6813 req->alpha2[0], req->alpha2[1]); 6814 6815 err = brcmf_fil_iovar_data_get(ifp, "country", &ccreq, sizeof(ccreq)); 6816 if (err) { 6817 brcmf_err("Country code iovar returned err = %d\n", err); 6818 return; 6819 } 6820 6821 err = brcmf_translate_country_code(ifp->drvr, req->alpha2, &ccreq); 6822 if (err) 6823 return; 6824 6825 err = brcmf_fil_iovar_data_set(ifp, "country", &ccreq, sizeof(ccreq)); 6826 if (err) { 6827 brcmf_err("Firmware rejected country setting\n"); 6828 return; 6829 } 6830 brcmf_setup_wiphybands(wiphy); 6831 } 6832 6833 static void brcmf_free_wiphy(struct wiphy *wiphy) 6834 { 6835 int i; 6836 6837 if (!wiphy) 6838 return; 6839 6840 if (wiphy->iface_combinations) { 6841 for (i = 0; i < wiphy->n_iface_combinations; i++) 6842 kfree(wiphy->iface_combinations[i].limits); 6843 } 6844 kfree(wiphy->iface_combinations); 6845 if (wiphy->bands[NL80211_BAND_2GHZ]) { 6846 kfree(wiphy->bands[NL80211_BAND_2GHZ]->channels); 6847 kfree(wiphy->bands[NL80211_BAND_2GHZ]); 6848 } 6849 if (wiphy->bands[NL80211_BAND_5GHZ]) { 6850 kfree(wiphy->bands[NL80211_BAND_5GHZ]->channels); 6851 kfree(wiphy->bands[NL80211_BAND_5GHZ]); 6852 } 6853 #if IS_ENABLED(CONFIG_PM) 6854 if (wiphy->wowlan != &brcmf_wowlan_support) 6855 kfree(wiphy->wowlan); 6856 #endif 6857 wiphy_free(wiphy); 6858 } 6859 6860 struct brcmf_cfg80211_info *brcmf_cfg80211_attach(struct brcmf_pub *drvr, 6861 struct device *busdev, 6862 bool p2pdev_forced) 6863 { 6864 struct net_device *ndev = brcmf_get_ifp(drvr, 0)->ndev; 6865 struct brcmf_cfg80211_info *cfg; 6866 struct wiphy *wiphy; 6867 struct cfg80211_ops *ops; 6868 struct brcmf_cfg80211_vif *vif; 6869 struct brcmf_if *ifp; 6870 s32 err = 0; 6871 s32 io_type; 6872 u16 *cap = NULL; 6873 6874 if (!ndev) { 6875 brcmf_err("ndev is invalid\n"); 6876 return NULL; 6877 } 6878 6879 ops = kmemdup(&brcmf_cfg80211_ops, sizeof(*ops), GFP_KERNEL); 6880 if (!ops) 6881 return NULL; 6882 6883 ifp = netdev_priv(ndev); 6884 #ifdef CONFIG_PM 6885 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_WOWL_GTK)) 6886 ops->set_rekey_data = brcmf_cfg80211_set_rekey_data; 6887 #endif 6888 wiphy = wiphy_new(ops, sizeof(struct brcmf_cfg80211_info)); 6889 if (!wiphy) { 6890 brcmf_err("Could not allocate wiphy device\n"); 6891 goto ops_out; 6892 } 6893 memcpy(wiphy->perm_addr, drvr->mac, ETH_ALEN); 6894 set_wiphy_dev(wiphy, busdev); 6895 6896 cfg = wiphy_priv(wiphy); 6897 cfg->wiphy = wiphy; 6898 cfg->ops = ops; 6899 cfg->pub = drvr; 6900 init_vif_event(&cfg->vif_event); 6901 INIT_LIST_HEAD(&cfg->vif_list); 6902 6903 vif = brcmf_alloc_vif(cfg, NL80211_IFTYPE_STATION); 6904 if (IS_ERR(vif)) 6905 goto wiphy_out; 6906 6907 vif->ifp = ifp; 6908 vif->wdev.netdev = ndev; 6909 ndev->ieee80211_ptr = &vif->wdev; 6910 SET_NETDEV_DEV(ndev, wiphy_dev(cfg->wiphy)); 6911 6912 err = wl_init_priv(cfg); 6913 if (err) { 6914 brcmf_err("Failed to init iwm_priv (%d)\n", err); 6915 brcmf_free_vif(vif); 6916 goto wiphy_out; 6917 } 6918 ifp->vif = vif; 6919 6920 /* determine d11 io type before wiphy setup */ 6921 err = brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_VERSION, &io_type); 6922 if (err) { 6923 brcmf_err("Failed to get D11 version (%d)\n", err); 6924 goto priv_out; 6925 } 6926 cfg->d11inf.io_type = (u8)io_type; 6927 brcmu_d11_attach(&cfg->d11inf); 6928 6929 err = brcmf_setup_wiphy(wiphy, ifp); 6930 if (err < 0) 6931 goto priv_out; 6932 6933 brcmf_dbg(INFO, "Registering custom regulatory\n"); 6934 wiphy->reg_notifier = brcmf_cfg80211_reg_notifier; 6935 wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG; 6936 wiphy_apply_custom_regulatory(wiphy, &brcmf_regdom); 6937 6938 /* firmware defaults to 40MHz disabled in 2G band. We signal 6939 * cfg80211 here that we do and have it decide we can enable 6940 * it. But first check if device does support 2G operation. 6941 */ 6942 if (wiphy->bands[NL80211_BAND_2GHZ]) { 6943 cap = &wiphy->bands[NL80211_BAND_2GHZ]->ht_cap.cap; 6944 *cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; 6945 } 6946 err = wiphy_register(wiphy); 6947 if (err < 0) { 6948 brcmf_err("Could not register wiphy device (%d)\n", err); 6949 goto priv_out; 6950 } 6951 6952 err = brcmf_setup_wiphybands(wiphy); 6953 if (err) { 6954 brcmf_err("Setting wiphy bands failed (%d)\n", err); 6955 goto wiphy_unreg_out; 6956 } 6957 6958 /* If cfg80211 didn't disable 40MHz HT CAP in wiphy_register(), 6959 * setup 40MHz in 2GHz band and enable OBSS scanning. 6960 */ 6961 if (cap && (*cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40)) { 6962 err = brcmf_enable_bw40_2g(cfg); 6963 if (!err) 6964 err = brcmf_fil_iovar_int_set(ifp, "obss_coex", 6965 BRCMF_OBSS_COEX_AUTO); 6966 else 6967 *cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40; 6968 } 6969 /* p2p might require that "if-events" get processed by fweh. So 6970 * activate the already registered event handlers now and activate 6971 * the rest when initialization has completed. drvr->config needs to 6972 * be assigned before activating events. 6973 */ 6974 drvr->config = cfg; 6975 err = brcmf_fweh_activate_events(ifp); 6976 if (err) { 6977 brcmf_err("FWEH activation failed (%d)\n", err); 6978 goto wiphy_unreg_out; 6979 } 6980 6981 err = brcmf_p2p_attach(cfg, p2pdev_forced); 6982 if (err) { 6983 brcmf_err("P2P initialisation failed (%d)\n", err); 6984 goto wiphy_unreg_out; 6985 } 6986 err = brcmf_btcoex_attach(cfg); 6987 if (err) { 6988 brcmf_err("BT-coex initialisation failed (%d)\n", err); 6989 brcmf_p2p_detach(&cfg->p2p); 6990 goto wiphy_unreg_out; 6991 } 6992 err = brcmf_pno_attach(cfg); 6993 if (err) { 6994 brcmf_err("PNO initialisation failed (%d)\n", err); 6995 brcmf_btcoex_detach(cfg); 6996 brcmf_p2p_detach(&cfg->p2p); 6997 goto wiphy_unreg_out; 6998 } 6999 7000 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_TDLS)) { 7001 err = brcmf_fil_iovar_int_set(ifp, "tdls_enable", 1); 7002 if (err) { 7003 brcmf_dbg(INFO, "TDLS not enabled (%d)\n", err); 7004 wiphy->flags &= ~WIPHY_FLAG_SUPPORTS_TDLS; 7005 } else { 7006 brcmf_fweh_register(cfg->pub, BRCMF_E_TDLS_PEER_EVENT, 7007 brcmf_notify_tdls_peer_event); 7008 } 7009 } 7010 7011 /* (re-) activate FWEH event handling */ 7012 err = brcmf_fweh_activate_events(ifp); 7013 if (err) { 7014 brcmf_err("FWEH activation failed (%d)\n", err); 7015 goto detach; 7016 } 7017 7018 /* Fill in some of the advertised nl80211 supported features */ 7019 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_SCAN_RANDOM_MAC)) { 7020 wiphy->features |= NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR; 7021 #ifdef CONFIG_PM 7022 if (wiphy->wowlan && 7023 wiphy->wowlan->flags & WIPHY_WOWLAN_NET_DETECT) 7024 wiphy->features |= NL80211_FEATURE_ND_RANDOM_MAC_ADDR; 7025 #endif 7026 } 7027 7028 return cfg; 7029 7030 detach: 7031 brcmf_pno_detach(cfg); 7032 brcmf_btcoex_detach(cfg); 7033 brcmf_p2p_detach(&cfg->p2p); 7034 wiphy_unreg_out: 7035 wiphy_unregister(cfg->wiphy); 7036 priv_out: 7037 wl_deinit_priv(cfg); 7038 brcmf_free_vif(vif); 7039 ifp->vif = NULL; 7040 wiphy_out: 7041 brcmf_free_wiphy(wiphy); 7042 ops_out: 7043 kfree(ops); 7044 return NULL; 7045 } 7046 7047 void brcmf_cfg80211_detach(struct brcmf_cfg80211_info *cfg) 7048 { 7049 if (!cfg) 7050 return; 7051 7052 brcmf_pno_detach(cfg); 7053 brcmf_btcoex_detach(cfg); 7054 wiphy_unregister(cfg->wiphy); 7055 kfree(cfg->ops); 7056 wl_deinit_priv(cfg); 7057 brcmf_free_wiphy(cfg->wiphy); 7058 } 7059