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 s32 476 brcmf_configure_arp_nd_offload(struct brcmf_if *ifp, bool enable) 477 { 478 s32 err; 479 u32 mode; 480 481 if (enable) 482 mode = BRCMF_ARP_OL_AGENT | BRCMF_ARP_OL_PEER_AUTO_REPLY; 483 else 484 mode = 0; 485 486 /* Try to set and enable ARP offload feature, this may fail, then it */ 487 /* is simply not supported and err 0 will be returned */ 488 err = brcmf_fil_iovar_int_set(ifp, "arp_ol", mode); 489 if (err) { 490 brcmf_dbg(TRACE, "failed to set ARP offload mode to 0x%x, err = %d\n", 491 mode, err); 492 err = 0; 493 } else { 494 err = brcmf_fil_iovar_int_set(ifp, "arpoe", enable); 495 if (err) { 496 brcmf_dbg(TRACE, "failed to configure (%d) ARP offload err = %d\n", 497 enable, err); 498 err = 0; 499 } else 500 brcmf_dbg(TRACE, "successfully configured (%d) ARP offload to 0x%x\n", 501 enable, mode); 502 } 503 504 err = brcmf_fil_iovar_int_set(ifp, "ndoe", enable); 505 if (err) { 506 brcmf_dbg(TRACE, "failed to configure (%d) ND offload err = %d\n", 507 enable, err); 508 err = 0; 509 } else 510 brcmf_dbg(TRACE, "successfully configured (%d) ND offload to 0x%x\n", 511 enable, mode); 512 513 return err; 514 } 515 516 static void 517 brcmf_cfg80211_update_proto_addr_mode(struct wireless_dev *wdev) 518 { 519 struct brcmf_cfg80211_vif *vif; 520 struct brcmf_if *ifp; 521 522 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev); 523 ifp = vif->ifp; 524 525 if ((wdev->iftype == NL80211_IFTYPE_ADHOC) || 526 (wdev->iftype == NL80211_IFTYPE_AP) || 527 (wdev->iftype == NL80211_IFTYPE_P2P_GO)) 528 brcmf_proto_configure_addr_mode(ifp->drvr, ifp->ifidx, 529 ADDR_DIRECT); 530 else 531 brcmf_proto_configure_addr_mode(ifp->drvr, ifp->ifidx, 532 ADDR_INDIRECT); 533 } 534 535 static int brcmf_get_first_free_bsscfgidx(struct brcmf_pub *drvr) 536 { 537 int bsscfgidx; 538 539 for (bsscfgidx = 0; bsscfgidx < BRCMF_MAX_IFS; bsscfgidx++) { 540 /* bsscfgidx 1 is reserved for legacy P2P */ 541 if (bsscfgidx == 1) 542 continue; 543 if (!drvr->iflist[bsscfgidx]) 544 return bsscfgidx; 545 } 546 547 return -ENOMEM; 548 } 549 550 static int brcmf_cfg80211_request_ap_if(struct brcmf_if *ifp) 551 { 552 struct brcmf_mbss_ssid_le mbss_ssid_le; 553 int bsscfgidx; 554 int err; 555 556 memset(&mbss_ssid_le, 0, sizeof(mbss_ssid_le)); 557 bsscfgidx = brcmf_get_first_free_bsscfgidx(ifp->drvr); 558 if (bsscfgidx < 0) 559 return bsscfgidx; 560 561 mbss_ssid_le.bsscfgidx = cpu_to_le32(bsscfgidx); 562 mbss_ssid_le.SSID_len = cpu_to_le32(5); 563 sprintf(mbss_ssid_le.SSID, "ssid%d" , bsscfgidx); 564 565 err = brcmf_fil_bsscfg_data_set(ifp, "bsscfg:ssid", &mbss_ssid_le, 566 sizeof(mbss_ssid_le)); 567 if (err < 0) 568 brcmf_err("setting ssid failed %d\n", err); 569 570 return err; 571 } 572 573 /** 574 * brcmf_ap_add_vif() - create a new AP virtual interface for multiple BSS 575 * 576 * @wiphy: wiphy device of new interface. 577 * @name: name of the new interface. 578 * @params: contains mac address for AP device. 579 */ 580 static 581 struct wireless_dev *brcmf_ap_add_vif(struct wiphy *wiphy, const char *name, 582 struct vif_params *params) 583 { 584 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 585 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg)); 586 struct brcmf_cfg80211_vif *vif; 587 int err; 588 589 if (brcmf_cfg80211_vif_event_armed(cfg)) 590 return ERR_PTR(-EBUSY); 591 592 brcmf_dbg(INFO, "Adding vif \"%s\"\n", name); 593 594 vif = brcmf_alloc_vif(cfg, NL80211_IFTYPE_AP); 595 if (IS_ERR(vif)) 596 return (struct wireless_dev *)vif; 597 598 brcmf_cfg80211_arm_vif_event(cfg, vif); 599 600 err = brcmf_cfg80211_request_ap_if(ifp); 601 if (err) { 602 brcmf_cfg80211_arm_vif_event(cfg, NULL); 603 goto fail; 604 } 605 606 /* wait for firmware event */ 607 err = brcmf_cfg80211_wait_vif_event(cfg, BRCMF_E_IF_ADD, 608 BRCMF_VIF_EVENT_TIMEOUT); 609 brcmf_cfg80211_arm_vif_event(cfg, NULL); 610 if (!err) { 611 brcmf_err("timeout occurred\n"); 612 err = -EIO; 613 goto fail; 614 } 615 616 /* interface created in firmware */ 617 ifp = vif->ifp; 618 if (!ifp) { 619 brcmf_err("no if pointer provided\n"); 620 err = -ENOENT; 621 goto fail; 622 } 623 624 strncpy(ifp->ndev->name, name, sizeof(ifp->ndev->name) - 1); 625 err = brcmf_net_attach(ifp, true); 626 if (err) { 627 brcmf_err("Registering netdevice failed\n"); 628 free_netdev(ifp->ndev); 629 goto fail; 630 } 631 632 return &ifp->vif->wdev; 633 634 fail: 635 brcmf_free_vif(vif); 636 return ERR_PTR(err); 637 } 638 639 static bool brcmf_is_apmode(struct brcmf_cfg80211_vif *vif) 640 { 641 enum nl80211_iftype iftype; 642 643 iftype = vif->wdev.iftype; 644 return iftype == NL80211_IFTYPE_AP || iftype == NL80211_IFTYPE_P2P_GO; 645 } 646 647 static bool brcmf_is_ibssmode(struct brcmf_cfg80211_vif *vif) 648 { 649 return vif->wdev.iftype == NL80211_IFTYPE_ADHOC; 650 } 651 652 static struct wireless_dev *brcmf_cfg80211_add_iface(struct wiphy *wiphy, 653 const char *name, 654 unsigned char name_assign_type, 655 enum nl80211_iftype type, 656 struct vif_params *params) 657 { 658 struct wireless_dev *wdev; 659 int err; 660 661 brcmf_dbg(TRACE, "enter: %s type %d\n", name, type); 662 err = brcmf_vif_add_validate(wiphy_to_cfg(wiphy), type); 663 if (err) { 664 brcmf_err("iface validation failed: err=%d\n", err); 665 return ERR_PTR(err); 666 } 667 switch (type) { 668 case NL80211_IFTYPE_ADHOC: 669 case NL80211_IFTYPE_STATION: 670 case NL80211_IFTYPE_AP_VLAN: 671 case NL80211_IFTYPE_WDS: 672 case NL80211_IFTYPE_MONITOR: 673 case NL80211_IFTYPE_MESH_POINT: 674 return ERR_PTR(-EOPNOTSUPP); 675 case NL80211_IFTYPE_AP: 676 wdev = brcmf_ap_add_vif(wiphy, name, params); 677 break; 678 case NL80211_IFTYPE_P2P_CLIENT: 679 case NL80211_IFTYPE_P2P_GO: 680 case NL80211_IFTYPE_P2P_DEVICE: 681 wdev = brcmf_p2p_add_vif(wiphy, name, name_assign_type, type, params); 682 break; 683 case NL80211_IFTYPE_UNSPECIFIED: 684 default: 685 return ERR_PTR(-EINVAL); 686 } 687 688 if (IS_ERR(wdev)) 689 brcmf_err("add iface %s type %d failed: err=%d\n", 690 name, type, (int)PTR_ERR(wdev)); 691 else 692 brcmf_cfg80211_update_proto_addr_mode(wdev); 693 694 return wdev; 695 } 696 697 static void brcmf_scan_config_mpc(struct brcmf_if *ifp, int mpc) 698 { 699 if (brcmf_feat_is_quirk_enabled(ifp, BRCMF_FEAT_QUIRK_NEED_MPC)) 700 brcmf_set_mpc(ifp, mpc); 701 } 702 703 void brcmf_set_mpc(struct brcmf_if *ifp, int mpc) 704 { 705 s32 err = 0; 706 707 if (check_vif_up(ifp->vif)) { 708 err = brcmf_fil_iovar_int_set(ifp, "mpc", mpc); 709 if (err) { 710 brcmf_err("fail to set mpc\n"); 711 return; 712 } 713 brcmf_dbg(INFO, "MPC : %d\n", mpc); 714 } 715 } 716 717 s32 brcmf_notify_escan_complete(struct brcmf_cfg80211_info *cfg, 718 struct brcmf_if *ifp, bool aborted, 719 bool fw_abort) 720 { 721 struct brcmf_scan_params_le params_le; 722 struct cfg80211_scan_request *scan_request; 723 u64 reqid; 724 u32 bucket; 725 s32 err = 0; 726 727 brcmf_dbg(SCAN, "Enter\n"); 728 729 /* clear scan request, because the FW abort can cause a second call */ 730 /* to this functon and might cause a double cfg80211_scan_done */ 731 scan_request = cfg->scan_request; 732 cfg->scan_request = NULL; 733 734 if (timer_pending(&cfg->escan_timeout)) 735 del_timer_sync(&cfg->escan_timeout); 736 737 if (fw_abort) { 738 /* Do a scan abort to stop the driver's scan engine */ 739 brcmf_dbg(SCAN, "ABORT scan in firmware\n"); 740 memset(¶ms_le, 0, sizeof(params_le)); 741 eth_broadcast_addr(params_le.bssid); 742 params_le.bss_type = DOT11_BSSTYPE_ANY; 743 params_le.scan_type = 0; 744 params_le.channel_num = cpu_to_le32(1); 745 params_le.nprobes = cpu_to_le32(1); 746 params_le.active_time = cpu_to_le32(-1); 747 params_le.passive_time = cpu_to_le32(-1); 748 params_le.home_time = cpu_to_le32(-1); 749 /* Scan is aborted by setting channel_list[0] to -1 */ 750 params_le.channel_list[0] = cpu_to_le16(-1); 751 /* E-Scan (or anyother type) can be aborted by SCAN */ 752 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SCAN, 753 ¶ms_le, sizeof(params_le)); 754 if (err) 755 brcmf_err("Scan abort failed\n"); 756 } 757 758 brcmf_scan_config_mpc(ifp, 1); 759 760 /* 761 * e-scan can be initiated internally 762 * which takes precedence. 763 */ 764 if (cfg->int_escan_map) { 765 brcmf_dbg(SCAN, "scheduled scan completed (%x)\n", 766 cfg->int_escan_map); 767 while (cfg->int_escan_map) { 768 bucket = __ffs(cfg->int_escan_map); 769 cfg->int_escan_map &= ~BIT(bucket); 770 reqid = brcmf_pno_find_reqid_by_bucket(cfg->pno, 771 bucket); 772 if (!aborted) { 773 brcmf_dbg(SCAN, "report results: reqid=%llu\n", 774 reqid); 775 cfg80211_sched_scan_results(cfg_to_wiphy(cfg), 776 reqid); 777 } 778 } 779 } else if (scan_request) { 780 struct cfg80211_scan_info info = { 781 .aborted = aborted, 782 }; 783 784 brcmf_dbg(SCAN, "ESCAN Completed scan: %s\n", 785 aborted ? "Aborted" : "Done"); 786 cfg80211_scan_done(scan_request, &info); 787 } 788 if (!test_and_clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) 789 brcmf_dbg(SCAN, "Scan complete, probably P2P scan\n"); 790 791 return err; 792 } 793 794 static int brcmf_cfg80211_del_ap_iface(struct wiphy *wiphy, 795 struct wireless_dev *wdev) 796 { 797 struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy); 798 struct net_device *ndev = wdev->netdev; 799 struct brcmf_if *ifp = netdev_priv(ndev); 800 int ret; 801 int err; 802 803 brcmf_cfg80211_arm_vif_event(cfg, ifp->vif); 804 805 err = brcmf_fil_bsscfg_data_set(ifp, "interface_remove", NULL, 0); 806 if (err) { 807 brcmf_err("interface_remove failed %d\n", err); 808 goto err_unarm; 809 } 810 811 /* wait for firmware event */ 812 ret = brcmf_cfg80211_wait_vif_event(cfg, BRCMF_E_IF_DEL, 813 BRCMF_VIF_EVENT_TIMEOUT); 814 if (!ret) { 815 brcmf_err("timeout occurred\n"); 816 err = -EIO; 817 goto err_unarm; 818 } 819 820 brcmf_remove_interface(ifp, true); 821 822 err_unarm: 823 brcmf_cfg80211_arm_vif_event(cfg, NULL); 824 return err; 825 } 826 827 static 828 int brcmf_cfg80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev) 829 { 830 struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy); 831 struct net_device *ndev = wdev->netdev; 832 833 if (ndev && ndev == cfg_to_ndev(cfg)) 834 return -ENOTSUPP; 835 836 /* vif event pending in firmware */ 837 if (brcmf_cfg80211_vif_event_armed(cfg)) 838 return -EBUSY; 839 840 if (ndev) { 841 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status) && 842 cfg->escan_info.ifp == netdev_priv(ndev)) 843 brcmf_notify_escan_complete(cfg, netdev_priv(ndev), 844 true, true); 845 846 brcmf_fil_iovar_int_set(netdev_priv(ndev), "mpc", 1); 847 } 848 849 switch (wdev->iftype) { 850 case NL80211_IFTYPE_ADHOC: 851 case NL80211_IFTYPE_STATION: 852 case NL80211_IFTYPE_AP_VLAN: 853 case NL80211_IFTYPE_WDS: 854 case NL80211_IFTYPE_MONITOR: 855 case NL80211_IFTYPE_MESH_POINT: 856 return -EOPNOTSUPP; 857 case NL80211_IFTYPE_AP: 858 return brcmf_cfg80211_del_ap_iface(wiphy, wdev); 859 case NL80211_IFTYPE_P2P_CLIENT: 860 case NL80211_IFTYPE_P2P_GO: 861 case NL80211_IFTYPE_P2P_DEVICE: 862 return brcmf_p2p_del_vif(wiphy, wdev); 863 case NL80211_IFTYPE_UNSPECIFIED: 864 default: 865 return -EINVAL; 866 } 867 return -EOPNOTSUPP; 868 } 869 870 static s32 871 brcmf_cfg80211_change_iface(struct wiphy *wiphy, struct net_device *ndev, 872 enum nl80211_iftype type, 873 struct vif_params *params) 874 { 875 struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy); 876 struct brcmf_if *ifp = netdev_priv(ndev); 877 struct brcmf_cfg80211_vif *vif = ifp->vif; 878 s32 infra = 0; 879 s32 ap = 0; 880 s32 err = 0; 881 882 brcmf_dbg(TRACE, "Enter, bsscfgidx=%d, type=%d\n", ifp->bsscfgidx, 883 type); 884 885 /* WAR: There are a number of p2p interface related problems which 886 * need to be handled initially (before doing the validate). 887 * wpa_supplicant tends to do iface changes on p2p device/client/go 888 * which are not always possible/allowed. However we need to return 889 * OK otherwise the wpa_supplicant wont start. The situation differs 890 * on configuration and setup (p2pon=1 module param). The first check 891 * is to see if the request is a change to station for p2p iface. 892 */ 893 if ((type == NL80211_IFTYPE_STATION) && 894 ((vif->wdev.iftype == NL80211_IFTYPE_P2P_CLIENT) || 895 (vif->wdev.iftype == NL80211_IFTYPE_P2P_GO) || 896 (vif->wdev.iftype == NL80211_IFTYPE_P2P_DEVICE))) { 897 brcmf_dbg(TRACE, "Ignoring cmd for p2p if\n"); 898 /* Now depending on whether module param p2pon=1 was used the 899 * response needs to be either 0 or EOPNOTSUPP. The reason is 900 * that if p2pon=1 is used, but a newer supplicant is used then 901 * we should return an error, as this combination wont work. 902 * In other situations 0 is returned and supplicant will start 903 * normally. It will give a trace in cfg80211, but it is the 904 * only way to get it working. Unfortunately this will result 905 * in situation where we wont support new supplicant in 906 * combination with module param p2pon=1, but that is the way 907 * it is. If the user tries this then unloading of driver might 908 * fail/lock. 909 */ 910 if (cfg->p2p.p2pdev_dynamically) 911 return -EOPNOTSUPP; 912 else 913 return 0; 914 } 915 err = brcmf_vif_change_validate(wiphy_to_cfg(wiphy), vif, type); 916 if (err) { 917 brcmf_err("iface validation failed: err=%d\n", err); 918 return err; 919 } 920 switch (type) { 921 case NL80211_IFTYPE_MONITOR: 922 case NL80211_IFTYPE_WDS: 923 brcmf_err("type (%d) : currently we do not support this type\n", 924 type); 925 return -EOPNOTSUPP; 926 case NL80211_IFTYPE_ADHOC: 927 infra = 0; 928 break; 929 case NL80211_IFTYPE_STATION: 930 infra = 1; 931 break; 932 case NL80211_IFTYPE_AP: 933 case NL80211_IFTYPE_P2P_GO: 934 ap = 1; 935 break; 936 default: 937 err = -EINVAL; 938 goto done; 939 } 940 941 if (ap) { 942 if (type == NL80211_IFTYPE_P2P_GO) { 943 brcmf_dbg(INFO, "IF Type = P2P GO\n"); 944 err = brcmf_p2p_ifchange(cfg, BRCMF_FIL_P2P_IF_GO); 945 } 946 if (!err) { 947 brcmf_dbg(INFO, "IF Type = AP\n"); 948 } 949 } else { 950 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_INFRA, infra); 951 if (err) { 952 brcmf_err("WLC_SET_INFRA error (%d)\n", err); 953 err = -EAGAIN; 954 goto done; 955 } 956 brcmf_dbg(INFO, "IF Type = %s\n", brcmf_is_ibssmode(vif) ? 957 "Adhoc" : "Infra"); 958 } 959 ndev->ieee80211_ptr->iftype = type; 960 961 brcmf_cfg80211_update_proto_addr_mode(&vif->wdev); 962 963 done: 964 brcmf_dbg(TRACE, "Exit\n"); 965 966 return err; 967 } 968 969 static void brcmf_escan_prep(struct brcmf_cfg80211_info *cfg, 970 struct brcmf_scan_params_le *params_le, 971 struct cfg80211_scan_request *request) 972 { 973 u32 n_ssids; 974 u32 n_channels; 975 s32 i; 976 s32 offset; 977 u16 chanspec; 978 char *ptr; 979 struct brcmf_ssid_le ssid_le; 980 981 eth_broadcast_addr(params_le->bssid); 982 params_le->bss_type = DOT11_BSSTYPE_ANY; 983 params_le->scan_type = 0; 984 params_le->channel_num = 0; 985 params_le->nprobes = cpu_to_le32(-1); 986 params_le->active_time = cpu_to_le32(-1); 987 params_le->passive_time = cpu_to_le32(-1); 988 params_le->home_time = cpu_to_le32(-1); 989 memset(¶ms_le->ssid_le, 0, sizeof(params_le->ssid_le)); 990 991 /* if request is null exit so it will be all channel broadcast scan */ 992 if (!request) 993 return; 994 995 n_ssids = request->n_ssids; 996 n_channels = request->n_channels; 997 /* Copy channel array if applicable */ 998 brcmf_dbg(SCAN, "### List of channelspecs to scan ### %d\n", 999 n_channels); 1000 if (n_channels > 0) { 1001 for (i = 0; i < n_channels; i++) { 1002 chanspec = channel_to_chanspec(&cfg->d11inf, 1003 request->channels[i]); 1004 brcmf_dbg(SCAN, "Chan : %d, Channel spec: %x\n", 1005 request->channels[i]->hw_value, chanspec); 1006 params_le->channel_list[i] = cpu_to_le16(chanspec); 1007 } 1008 } else { 1009 brcmf_dbg(SCAN, "Scanning all channels\n"); 1010 } 1011 /* Copy ssid array if applicable */ 1012 brcmf_dbg(SCAN, "### List of SSIDs to scan ### %d\n", n_ssids); 1013 if (n_ssids > 0) { 1014 offset = offsetof(struct brcmf_scan_params_le, channel_list) + 1015 n_channels * sizeof(u16); 1016 offset = roundup(offset, sizeof(u32)); 1017 ptr = (char *)params_le + offset; 1018 for (i = 0; i < n_ssids; i++) { 1019 memset(&ssid_le, 0, sizeof(ssid_le)); 1020 ssid_le.SSID_len = 1021 cpu_to_le32(request->ssids[i].ssid_len); 1022 memcpy(ssid_le.SSID, request->ssids[i].ssid, 1023 request->ssids[i].ssid_len); 1024 if (!ssid_le.SSID_len) 1025 brcmf_dbg(SCAN, "%d: Broadcast scan\n", i); 1026 else 1027 brcmf_dbg(SCAN, "%d: scan for %.32s size=%d\n", 1028 i, ssid_le.SSID, ssid_le.SSID_len); 1029 memcpy(ptr, &ssid_le, sizeof(ssid_le)); 1030 ptr += sizeof(ssid_le); 1031 } 1032 } else { 1033 brcmf_dbg(SCAN, "Broadcast scan %p\n", request->ssids); 1034 if ((request->ssids) && request->ssids->ssid_len) { 1035 brcmf_dbg(SCAN, "SSID %s len=%d\n", 1036 params_le->ssid_le.SSID, 1037 request->ssids->ssid_len); 1038 params_le->ssid_le.SSID_len = 1039 cpu_to_le32(request->ssids->ssid_len); 1040 memcpy(¶ms_le->ssid_le.SSID, request->ssids->ssid, 1041 request->ssids->ssid_len); 1042 } 1043 } 1044 /* Adding mask to channel numbers */ 1045 params_le->channel_num = 1046 cpu_to_le32((n_ssids << BRCMF_SCAN_PARAMS_NSSID_SHIFT) | 1047 (n_channels & BRCMF_SCAN_PARAMS_COUNT_MASK)); 1048 } 1049 1050 static s32 1051 brcmf_run_escan(struct brcmf_cfg80211_info *cfg, struct brcmf_if *ifp, 1052 struct cfg80211_scan_request *request) 1053 { 1054 s32 params_size = BRCMF_SCAN_PARAMS_FIXED_SIZE + 1055 offsetof(struct brcmf_escan_params_le, params_le); 1056 struct brcmf_escan_params_le *params; 1057 s32 err = 0; 1058 1059 brcmf_dbg(SCAN, "E-SCAN START\n"); 1060 1061 if (request != NULL) { 1062 /* Allocate space for populating ssids in struct */ 1063 params_size += sizeof(u32) * ((request->n_channels + 1) / 2); 1064 1065 /* Allocate space for populating ssids in struct */ 1066 params_size += sizeof(struct brcmf_ssid_le) * request->n_ssids; 1067 } 1068 1069 params = kzalloc(params_size, GFP_KERNEL); 1070 if (!params) { 1071 err = -ENOMEM; 1072 goto exit; 1073 } 1074 BUG_ON(params_size + sizeof("escan") >= BRCMF_DCMD_MEDLEN); 1075 brcmf_escan_prep(cfg, ¶ms->params_le, request); 1076 params->version = cpu_to_le32(BRCMF_ESCAN_REQ_VERSION); 1077 params->action = cpu_to_le16(WL_ESCAN_ACTION_START); 1078 params->sync_id = cpu_to_le16(0x1234); 1079 1080 err = brcmf_fil_iovar_data_set(ifp, "escan", params, params_size); 1081 if (err) { 1082 if (err == -EBUSY) 1083 brcmf_dbg(INFO, "system busy : escan canceled\n"); 1084 else 1085 brcmf_err("error (%d)\n", err); 1086 } 1087 1088 kfree(params); 1089 exit: 1090 return err; 1091 } 1092 1093 static s32 1094 brcmf_do_escan(struct brcmf_if *ifp, struct cfg80211_scan_request *request) 1095 { 1096 struct brcmf_cfg80211_info *cfg = ifp->drvr->config; 1097 s32 err; 1098 u32 passive_scan; 1099 struct brcmf_scan_results *results; 1100 struct escan_info *escan = &cfg->escan_info; 1101 1102 brcmf_dbg(SCAN, "Enter\n"); 1103 escan->ifp = ifp; 1104 escan->wiphy = cfg->wiphy; 1105 escan->escan_state = WL_ESCAN_STATE_SCANNING; 1106 passive_scan = cfg->active_scan ? 0 : 1; 1107 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PASSIVE_SCAN, 1108 passive_scan); 1109 if (err) { 1110 brcmf_err("error (%d)\n", err); 1111 return err; 1112 } 1113 brcmf_scan_config_mpc(ifp, 0); 1114 results = (struct brcmf_scan_results *)cfg->escan_info.escan_buf; 1115 results->version = 0; 1116 results->count = 0; 1117 results->buflen = WL_ESCAN_RESULTS_FIXED_SIZE; 1118 1119 err = escan->run(cfg, ifp, request); 1120 if (err) 1121 brcmf_scan_config_mpc(ifp, 1); 1122 return err; 1123 } 1124 1125 static s32 1126 brcmf_cfg80211_escan(struct wiphy *wiphy, struct brcmf_cfg80211_vif *vif, 1127 struct cfg80211_scan_request *request, 1128 struct cfg80211_ssid *this_ssid) 1129 { 1130 struct brcmf_if *ifp = vif->ifp; 1131 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 1132 struct cfg80211_ssid *ssids; 1133 u32 passive_scan; 1134 bool escan_req; 1135 bool spec_scan; 1136 s32 err; 1137 struct brcmf_ssid_le ssid_le; 1138 u32 SSID_len; 1139 1140 brcmf_dbg(SCAN, "START ESCAN\n"); 1141 1142 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) { 1143 brcmf_err("Scanning already: status (%lu)\n", cfg->scan_status); 1144 return -EAGAIN; 1145 } 1146 if (test_bit(BRCMF_SCAN_STATUS_ABORT, &cfg->scan_status)) { 1147 brcmf_err("Scanning being aborted: status (%lu)\n", 1148 cfg->scan_status); 1149 return -EAGAIN; 1150 } 1151 if (test_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status)) { 1152 brcmf_err("Scanning suppressed: status (%lu)\n", 1153 cfg->scan_status); 1154 return -EAGAIN; 1155 } 1156 if (test_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state)) { 1157 brcmf_err("Connecting: status (%lu)\n", ifp->vif->sme_state); 1158 return -EAGAIN; 1159 } 1160 1161 /* If scan req comes for p2p0, send it over primary I/F */ 1162 if (vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif) 1163 vif = cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif; 1164 1165 escan_req = false; 1166 if (request) { 1167 /* scan bss */ 1168 ssids = request->ssids; 1169 escan_req = true; 1170 } else { 1171 /* scan in ibss */ 1172 /* we don't do escan in ibss */ 1173 ssids = this_ssid; 1174 } 1175 1176 cfg->scan_request = request; 1177 set_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status); 1178 if (escan_req) { 1179 cfg->escan_info.run = brcmf_run_escan; 1180 err = brcmf_p2p_scan_prep(wiphy, request, vif); 1181 if (err) 1182 goto scan_out; 1183 1184 err = brcmf_do_escan(vif->ifp, request); 1185 if (err) 1186 goto scan_out; 1187 } else { 1188 brcmf_dbg(SCAN, "ssid \"%s\", ssid_len (%d)\n", 1189 ssids->ssid, ssids->ssid_len); 1190 memset(&ssid_le, 0, sizeof(ssid_le)); 1191 SSID_len = min_t(u8, sizeof(ssid_le.SSID), ssids->ssid_len); 1192 ssid_le.SSID_len = cpu_to_le32(0); 1193 spec_scan = false; 1194 if (SSID_len) { 1195 memcpy(ssid_le.SSID, ssids->ssid, SSID_len); 1196 ssid_le.SSID_len = cpu_to_le32(SSID_len); 1197 spec_scan = true; 1198 } else 1199 brcmf_dbg(SCAN, "Broadcast scan\n"); 1200 1201 passive_scan = cfg->active_scan ? 0 : 1; 1202 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PASSIVE_SCAN, 1203 passive_scan); 1204 if (err) { 1205 brcmf_err("WLC_SET_PASSIVE_SCAN error (%d)\n", err); 1206 goto scan_out; 1207 } 1208 brcmf_scan_config_mpc(ifp, 0); 1209 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SCAN, &ssid_le, 1210 sizeof(ssid_le)); 1211 if (err) { 1212 if (err == -EBUSY) 1213 brcmf_dbg(INFO, "BUSY: scan for \"%s\" canceled\n", 1214 ssid_le.SSID); 1215 else 1216 brcmf_err("WLC_SCAN error (%d)\n", err); 1217 1218 brcmf_scan_config_mpc(ifp, 1); 1219 goto scan_out; 1220 } 1221 } 1222 1223 /* Arm scan timeout timer */ 1224 mod_timer(&cfg->escan_timeout, jiffies + 1225 BRCMF_ESCAN_TIMER_INTERVAL_MS * HZ / 1000); 1226 1227 return 0; 1228 1229 scan_out: 1230 clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status); 1231 cfg->scan_request = NULL; 1232 return err; 1233 } 1234 1235 static s32 1236 brcmf_cfg80211_scan(struct wiphy *wiphy, struct cfg80211_scan_request *request) 1237 { 1238 struct brcmf_cfg80211_vif *vif; 1239 s32 err = 0; 1240 1241 brcmf_dbg(TRACE, "Enter\n"); 1242 vif = container_of(request->wdev, struct brcmf_cfg80211_vif, wdev); 1243 if (!check_vif_up(vif)) 1244 return -EIO; 1245 1246 err = brcmf_cfg80211_escan(wiphy, vif, request, NULL); 1247 1248 if (err) 1249 brcmf_err("scan error (%d)\n", err); 1250 1251 brcmf_dbg(TRACE, "Exit\n"); 1252 return err; 1253 } 1254 1255 static s32 brcmf_set_rts(struct net_device *ndev, u32 rts_threshold) 1256 { 1257 s32 err = 0; 1258 1259 err = brcmf_fil_iovar_int_set(netdev_priv(ndev), "rtsthresh", 1260 rts_threshold); 1261 if (err) 1262 brcmf_err("Error (%d)\n", err); 1263 1264 return err; 1265 } 1266 1267 static s32 brcmf_set_frag(struct net_device *ndev, u32 frag_threshold) 1268 { 1269 s32 err = 0; 1270 1271 err = brcmf_fil_iovar_int_set(netdev_priv(ndev), "fragthresh", 1272 frag_threshold); 1273 if (err) 1274 brcmf_err("Error (%d)\n", err); 1275 1276 return err; 1277 } 1278 1279 static s32 brcmf_set_retry(struct net_device *ndev, u32 retry, bool l) 1280 { 1281 s32 err = 0; 1282 u32 cmd = (l ? BRCMF_C_SET_LRL : BRCMF_C_SET_SRL); 1283 1284 err = brcmf_fil_cmd_int_set(netdev_priv(ndev), cmd, retry); 1285 if (err) { 1286 brcmf_err("cmd (%d) , error (%d)\n", cmd, err); 1287 return err; 1288 } 1289 return err; 1290 } 1291 1292 static s32 brcmf_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 1293 { 1294 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 1295 struct net_device *ndev = cfg_to_ndev(cfg); 1296 struct brcmf_if *ifp = netdev_priv(ndev); 1297 s32 err = 0; 1298 1299 brcmf_dbg(TRACE, "Enter\n"); 1300 if (!check_vif_up(ifp->vif)) 1301 return -EIO; 1302 1303 if (changed & WIPHY_PARAM_RTS_THRESHOLD && 1304 (cfg->conf->rts_threshold != wiphy->rts_threshold)) { 1305 cfg->conf->rts_threshold = wiphy->rts_threshold; 1306 err = brcmf_set_rts(ndev, cfg->conf->rts_threshold); 1307 if (!err) 1308 goto done; 1309 } 1310 if (changed & WIPHY_PARAM_FRAG_THRESHOLD && 1311 (cfg->conf->frag_threshold != wiphy->frag_threshold)) { 1312 cfg->conf->frag_threshold = wiphy->frag_threshold; 1313 err = brcmf_set_frag(ndev, cfg->conf->frag_threshold); 1314 if (!err) 1315 goto done; 1316 } 1317 if (changed & WIPHY_PARAM_RETRY_LONG 1318 && (cfg->conf->retry_long != wiphy->retry_long)) { 1319 cfg->conf->retry_long = wiphy->retry_long; 1320 err = brcmf_set_retry(ndev, cfg->conf->retry_long, true); 1321 if (!err) 1322 goto done; 1323 } 1324 if (changed & WIPHY_PARAM_RETRY_SHORT 1325 && (cfg->conf->retry_short != wiphy->retry_short)) { 1326 cfg->conf->retry_short = wiphy->retry_short; 1327 err = brcmf_set_retry(ndev, cfg->conf->retry_short, false); 1328 if (!err) 1329 goto done; 1330 } 1331 1332 done: 1333 brcmf_dbg(TRACE, "Exit\n"); 1334 return err; 1335 } 1336 1337 static void brcmf_init_prof(struct brcmf_cfg80211_profile *prof) 1338 { 1339 memset(prof, 0, sizeof(*prof)); 1340 } 1341 1342 static u16 brcmf_map_fw_linkdown_reason(const struct brcmf_event_msg *e) 1343 { 1344 u16 reason; 1345 1346 switch (e->event_code) { 1347 case BRCMF_E_DEAUTH: 1348 case BRCMF_E_DEAUTH_IND: 1349 case BRCMF_E_DISASSOC_IND: 1350 reason = e->reason; 1351 break; 1352 case BRCMF_E_LINK: 1353 default: 1354 reason = 0; 1355 break; 1356 } 1357 return reason; 1358 } 1359 1360 static int brcmf_set_pmk(struct brcmf_if *ifp, const u8 *pmk_data, u16 pmk_len) 1361 { 1362 struct brcmf_wsec_pmk_le pmk; 1363 int i, err; 1364 1365 /* convert to firmware key format */ 1366 pmk.key_len = cpu_to_le16(pmk_len << 1); 1367 pmk.flags = cpu_to_le16(BRCMF_WSEC_PASSPHRASE); 1368 for (i = 0; i < pmk_len; i++) 1369 snprintf(&pmk.key[2 * i], 3, "%02x", pmk_data[i]); 1370 1371 /* store psk in firmware */ 1372 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_WSEC_PMK, 1373 &pmk, sizeof(pmk)); 1374 if (err < 0) 1375 brcmf_err("failed to change PSK in firmware (len=%u)\n", 1376 pmk_len); 1377 1378 return err; 1379 } 1380 1381 static void brcmf_link_down(struct brcmf_cfg80211_vif *vif, u16 reason) 1382 { 1383 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(vif->wdev.wiphy); 1384 s32 err = 0; 1385 1386 brcmf_dbg(TRACE, "Enter\n"); 1387 1388 if (test_and_clear_bit(BRCMF_VIF_STATUS_CONNECTED, &vif->sme_state)) { 1389 brcmf_dbg(INFO, "Call WLC_DISASSOC to stop excess roaming\n "); 1390 err = brcmf_fil_cmd_data_set(vif->ifp, 1391 BRCMF_C_DISASSOC, NULL, 0); 1392 if (err) { 1393 brcmf_err("WLC_DISASSOC failed (%d)\n", err); 1394 } 1395 if ((vif->wdev.iftype == NL80211_IFTYPE_STATION) || 1396 (vif->wdev.iftype == NL80211_IFTYPE_P2P_CLIENT)) 1397 cfg80211_disconnected(vif->wdev.netdev, reason, NULL, 0, 1398 true, GFP_KERNEL); 1399 } 1400 clear_bit(BRCMF_VIF_STATUS_CONNECTING, &vif->sme_state); 1401 clear_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status); 1402 brcmf_btcoex_set_mode(vif, BRCMF_BTCOEX_ENABLED, 0); 1403 if (vif->profile.use_fwsup != BRCMF_PROFILE_FWSUP_NONE) { 1404 brcmf_set_pmk(vif->ifp, NULL, 0); 1405 vif->profile.use_fwsup = BRCMF_PROFILE_FWSUP_NONE; 1406 } 1407 brcmf_dbg(TRACE, "Exit\n"); 1408 } 1409 1410 static s32 1411 brcmf_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *ndev, 1412 struct cfg80211_ibss_params *params) 1413 { 1414 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 1415 struct brcmf_if *ifp = netdev_priv(ndev); 1416 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile; 1417 struct brcmf_join_params join_params; 1418 size_t join_params_size = 0; 1419 s32 err = 0; 1420 s32 wsec = 0; 1421 s32 bcnprd; 1422 u16 chanspec; 1423 u32 ssid_len; 1424 1425 brcmf_dbg(TRACE, "Enter\n"); 1426 if (!check_vif_up(ifp->vif)) 1427 return -EIO; 1428 1429 if (params->ssid) 1430 brcmf_dbg(CONN, "SSID: %s\n", params->ssid); 1431 else { 1432 brcmf_dbg(CONN, "SSID: NULL, Not supported\n"); 1433 return -EOPNOTSUPP; 1434 } 1435 1436 set_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state); 1437 1438 if (params->bssid) 1439 brcmf_dbg(CONN, "BSSID: %pM\n", params->bssid); 1440 else 1441 brcmf_dbg(CONN, "No BSSID specified\n"); 1442 1443 if (params->chandef.chan) 1444 brcmf_dbg(CONN, "channel: %d\n", 1445 params->chandef.chan->center_freq); 1446 else 1447 brcmf_dbg(CONN, "no channel specified\n"); 1448 1449 if (params->channel_fixed) 1450 brcmf_dbg(CONN, "fixed channel required\n"); 1451 else 1452 brcmf_dbg(CONN, "no fixed channel required\n"); 1453 1454 if (params->ie && params->ie_len) 1455 brcmf_dbg(CONN, "ie len: %d\n", params->ie_len); 1456 else 1457 brcmf_dbg(CONN, "no ie specified\n"); 1458 1459 if (params->beacon_interval) 1460 brcmf_dbg(CONN, "beacon interval: %d\n", 1461 params->beacon_interval); 1462 else 1463 brcmf_dbg(CONN, "no beacon interval specified\n"); 1464 1465 if (params->basic_rates) 1466 brcmf_dbg(CONN, "basic rates: %08X\n", params->basic_rates); 1467 else 1468 brcmf_dbg(CONN, "no basic rates specified\n"); 1469 1470 if (params->privacy) 1471 brcmf_dbg(CONN, "privacy required\n"); 1472 else 1473 brcmf_dbg(CONN, "no privacy required\n"); 1474 1475 /* Configure Privacy for starter */ 1476 if (params->privacy) 1477 wsec |= WEP_ENABLED; 1478 1479 err = brcmf_fil_iovar_int_set(ifp, "wsec", wsec); 1480 if (err) { 1481 brcmf_err("wsec failed (%d)\n", err); 1482 goto done; 1483 } 1484 1485 /* Configure Beacon Interval for starter */ 1486 if (params->beacon_interval) 1487 bcnprd = params->beacon_interval; 1488 else 1489 bcnprd = 100; 1490 1491 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_BCNPRD, bcnprd); 1492 if (err) { 1493 brcmf_err("WLC_SET_BCNPRD failed (%d)\n", err); 1494 goto done; 1495 } 1496 1497 /* Configure required join parameter */ 1498 memset(&join_params, 0, sizeof(struct brcmf_join_params)); 1499 1500 /* SSID */ 1501 ssid_len = min_t(u32, params->ssid_len, IEEE80211_MAX_SSID_LEN); 1502 memcpy(join_params.ssid_le.SSID, params->ssid, ssid_len); 1503 join_params.ssid_le.SSID_len = cpu_to_le32(ssid_len); 1504 join_params_size = sizeof(join_params.ssid_le); 1505 1506 /* BSSID */ 1507 if (params->bssid) { 1508 memcpy(join_params.params_le.bssid, params->bssid, ETH_ALEN); 1509 join_params_size += BRCMF_ASSOC_PARAMS_FIXED_SIZE; 1510 memcpy(profile->bssid, params->bssid, ETH_ALEN); 1511 } else { 1512 eth_broadcast_addr(join_params.params_le.bssid); 1513 eth_zero_addr(profile->bssid); 1514 } 1515 1516 /* Channel */ 1517 if (params->chandef.chan) { 1518 u32 target_channel; 1519 1520 cfg->channel = 1521 ieee80211_frequency_to_channel( 1522 params->chandef.chan->center_freq); 1523 if (params->channel_fixed) { 1524 /* adding chanspec */ 1525 chanspec = chandef_to_chanspec(&cfg->d11inf, 1526 ¶ms->chandef); 1527 join_params.params_le.chanspec_list[0] = 1528 cpu_to_le16(chanspec); 1529 join_params.params_le.chanspec_num = cpu_to_le32(1); 1530 join_params_size += sizeof(join_params.params_le); 1531 } 1532 1533 /* set channel for starter */ 1534 target_channel = cfg->channel; 1535 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_CHANNEL, 1536 target_channel); 1537 if (err) { 1538 brcmf_err("WLC_SET_CHANNEL failed (%d)\n", err); 1539 goto done; 1540 } 1541 } else 1542 cfg->channel = 0; 1543 1544 cfg->ibss_starter = false; 1545 1546 1547 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID, 1548 &join_params, join_params_size); 1549 if (err) { 1550 brcmf_err("WLC_SET_SSID failed (%d)\n", err); 1551 goto done; 1552 } 1553 1554 done: 1555 if (err) 1556 clear_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state); 1557 brcmf_dbg(TRACE, "Exit\n"); 1558 return err; 1559 } 1560 1561 static s32 1562 brcmf_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *ndev) 1563 { 1564 struct brcmf_if *ifp = netdev_priv(ndev); 1565 1566 brcmf_dbg(TRACE, "Enter\n"); 1567 if (!check_vif_up(ifp->vif)) { 1568 /* When driver is being unloaded, it can end up here. If an 1569 * error is returned then later on a debug trace in the wireless 1570 * core module will be printed. To avoid this 0 is returned. 1571 */ 1572 return 0; 1573 } 1574 1575 brcmf_link_down(ifp->vif, WLAN_REASON_DEAUTH_LEAVING); 1576 brcmf_net_setcarrier(ifp, false); 1577 1578 brcmf_dbg(TRACE, "Exit\n"); 1579 1580 return 0; 1581 } 1582 1583 static s32 brcmf_set_wpa_version(struct net_device *ndev, 1584 struct cfg80211_connect_params *sme) 1585 { 1586 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev); 1587 struct brcmf_cfg80211_security *sec; 1588 s32 val = 0; 1589 s32 err = 0; 1590 1591 if (sme->crypto.wpa_versions & NL80211_WPA_VERSION_1) 1592 val = WPA_AUTH_PSK | WPA_AUTH_UNSPECIFIED; 1593 else if (sme->crypto.wpa_versions & NL80211_WPA_VERSION_2) 1594 val = WPA2_AUTH_PSK | WPA2_AUTH_UNSPECIFIED; 1595 else 1596 val = WPA_AUTH_DISABLED; 1597 brcmf_dbg(CONN, "setting wpa_auth to 0x%0x\n", val); 1598 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "wpa_auth", val); 1599 if (err) { 1600 brcmf_err("set wpa_auth failed (%d)\n", err); 1601 return err; 1602 } 1603 sec = &profile->sec; 1604 sec->wpa_versions = sme->crypto.wpa_versions; 1605 return err; 1606 } 1607 1608 static s32 brcmf_set_auth_type(struct net_device *ndev, 1609 struct cfg80211_connect_params *sme) 1610 { 1611 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev); 1612 struct brcmf_cfg80211_security *sec; 1613 s32 val = 0; 1614 s32 err = 0; 1615 1616 switch (sme->auth_type) { 1617 case NL80211_AUTHTYPE_OPEN_SYSTEM: 1618 val = 0; 1619 brcmf_dbg(CONN, "open system\n"); 1620 break; 1621 case NL80211_AUTHTYPE_SHARED_KEY: 1622 val = 1; 1623 brcmf_dbg(CONN, "shared key\n"); 1624 break; 1625 default: 1626 val = 2; 1627 brcmf_dbg(CONN, "automatic, auth type (%d)\n", sme->auth_type); 1628 break; 1629 } 1630 1631 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "auth", val); 1632 if (err) { 1633 brcmf_err("set auth failed (%d)\n", err); 1634 return err; 1635 } 1636 sec = &profile->sec; 1637 sec->auth_type = sme->auth_type; 1638 return err; 1639 } 1640 1641 static s32 1642 brcmf_set_wsec_mode(struct net_device *ndev, 1643 struct cfg80211_connect_params *sme) 1644 { 1645 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev); 1646 struct brcmf_cfg80211_security *sec; 1647 s32 pval = 0; 1648 s32 gval = 0; 1649 s32 wsec; 1650 s32 err = 0; 1651 1652 if (sme->crypto.n_ciphers_pairwise) { 1653 switch (sme->crypto.ciphers_pairwise[0]) { 1654 case WLAN_CIPHER_SUITE_WEP40: 1655 case WLAN_CIPHER_SUITE_WEP104: 1656 pval = WEP_ENABLED; 1657 break; 1658 case WLAN_CIPHER_SUITE_TKIP: 1659 pval = TKIP_ENABLED; 1660 break; 1661 case WLAN_CIPHER_SUITE_CCMP: 1662 pval = AES_ENABLED; 1663 break; 1664 case WLAN_CIPHER_SUITE_AES_CMAC: 1665 pval = AES_ENABLED; 1666 break; 1667 default: 1668 brcmf_err("invalid cipher pairwise (%d)\n", 1669 sme->crypto.ciphers_pairwise[0]); 1670 return -EINVAL; 1671 } 1672 } 1673 if (sme->crypto.cipher_group) { 1674 switch (sme->crypto.cipher_group) { 1675 case WLAN_CIPHER_SUITE_WEP40: 1676 case WLAN_CIPHER_SUITE_WEP104: 1677 gval = WEP_ENABLED; 1678 break; 1679 case WLAN_CIPHER_SUITE_TKIP: 1680 gval = TKIP_ENABLED; 1681 break; 1682 case WLAN_CIPHER_SUITE_CCMP: 1683 gval = AES_ENABLED; 1684 break; 1685 case WLAN_CIPHER_SUITE_AES_CMAC: 1686 gval = AES_ENABLED; 1687 break; 1688 default: 1689 brcmf_err("invalid cipher group (%d)\n", 1690 sme->crypto.cipher_group); 1691 return -EINVAL; 1692 } 1693 } 1694 1695 brcmf_dbg(CONN, "pval (%d) gval (%d)\n", pval, gval); 1696 /* In case of privacy, but no security and WPS then simulate */ 1697 /* setting AES. WPS-2.0 allows no security */ 1698 if (brcmf_find_wpsie(sme->ie, sme->ie_len) && !pval && !gval && 1699 sme->privacy) 1700 pval = AES_ENABLED; 1701 1702 wsec = pval | gval; 1703 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "wsec", wsec); 1704 if (err) { 1705 brcmf_err("error (%d)\n", err); 1706 return err; 1707 } 1708 1709 sec = &profile->sec; 1710 sec->cipher_pairwise = sme->crypto.ciphers_pairwise[0]; 1711 sec->cipher_group = sme->crypto.cipher_group; 1712 1713 return err; 1714 } 1715 1716 static s32 1717 brcmf_set_key_mgmt(struct net_device *ndev, struct cfg80211_connect_params *sme) 1718 { 1719 struct brcmf_if *ifp = netdev_priv(ndev); 1720 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile; 1721 s32 val; 1722 s32 err; 1723 const struct brcmf_tlv *rsn_ie; 1724 const u8 *ie; 1725 u32 ie_len; 1726 u32 offset; 1727 u16 rsn_cap; 1728 u32 mfp; 1729 u16 count; 1730 1731 profile->use_fwsup = BRCMF_PROFILE_FWSUP_NONE; 1732 1733 if (!sme->crypto.n_akm_suites) 1734 return 0; 1735 1736 err = brcmf_fil_bsscfg_int_get(netdev_priv(ndev), "wpa_auth", &val); 1737 if (err) { 1738 brcmf_err("could not get wpa_auth (%d)\n", err); 1739 return err; 1740 } 1741 if (val & (WPA_AUTH_PSK | WPA_AUTH_UNSPECIFIED)) { 1742 switch (sme->crypto.akm_suites[0]) { 1743 case WLAN_AKM_SUITE_8021X: 1744 val = WPA_AUTH_UNSPECIFIED; 1745 if (sme->want_1x) 1746 profile->use_fwsup = BRCMF_PROFILE_FWSUP_1X; 1747 break; 1748 case WLAN_AKM_SUITE_PSK: 1749 val = WPA_AUTH_PSK; 1750 break; 1751 default: 1752 brcmf_err("invalid cipher group (%d)\n", 1753 sme->crypto.cipher_group); 1754 return -EINVAL; 1755 } 1756 } else if (val & (WPA2_AUTH_PSK | WPA2_AUTH_UNSPECIFIED)) { 1757 switch (sme->crypto.akm_suites[0]) { 1758 case WLAN_AKM_SUITE_8021X: 1759 val = WPA2_AUTH_UNSPECIFIED; 1760 if (sme->want_1x) 1761 profile->use_fwsup = BRCMF_PROFILE_FWSUP_1X; 1762 break; 1763 case WLAN_AKM_SUITE_8021X_SHA256: 1764 val = WPA2_AUTH_1X_SHA256; 1765 if (sme->want_1x) 1766 profile->use_fwsup = BRCMF_PROFILE_FWSUP_1X; 1767 break; 1768 case WLAN_AKM_SUITE_PSK_SHA256: 1769 val = WPA2_AUTH_PSK_SHA256; 1770 break; 1771 case WLAN_AKM_SUITE_PSK: 1772 val = WPA2_AUTH_PSK; 1773 break; 1774 default: 1775 brcmf_err("invalid cipher group (%d)\n", 1776 sme->crypto.cipher_group); 1777 return -EINVAL; 1778 } 1779 } 1780 1781 if (profile->use_fwsup == BRCMF_PROFILE_FWSUP_1X) 1782 brcmf_dbg(INFO, "using 1X offload\n"); 1783 1784 if (!brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MFP)) 1785 goto skip_mfp_config; 1786 /* The MFP mode (1 or 2) needs to be determined, parse IEs. The 1787 * IE will not be verified, just a quick search for MFP config 1788 */ 1789 rsn_ie = brcmf_parse_tlvs((const u8 *)sme->ie, sme->ie_len, 1790 WLAN_EID_RSN); 1791 if (!rsn_ie) 1792 goto skip_mfp_config; 1793 ie = (const u8 *)rsn_ie; 1794 ie_len = rsn_ie->len + TLV_HDR_LEN; 1795 /* Skip unicast suite */ 1796 offset = TLV_HDR_LEN + WPA_IE_VERSION_LEN + WPA_IE_MIN_OUI_LEN; 1797 if (offset + WPA_IE_SUITE_COUNT_LEN >= ie_len) 1798 goto skip_mfp_config; 1799 /* Skip multicast suite */ 1800 count = ie[offset] + (ie[offset + 1] << 8); 1801 offset += WPA_IE_SUITE_COUNT_LEN + (count * WPA_IE_MIN_OUI_LEN); 1802 if (offset + WPA_IE_SUITE_COUNT_LEN >= ie_len) 1803 goto skip_mfp_config; 1804 /* Skip auth key management suite(s) */ 1805 count = ie[offset] + (ie[offset + 1] << 8); 1806 offset += WPA_IE_SUITE_COUNT_LEN + (count * WPA_IE_MIN_OUI_LEN); 1807 if (offset + WPA_IE_SUITE_COUNT_LEN > ie_len) 1808 goto skip_mfp_config; 1809 /* Ready to read capabilities */ 1810 mfp = BRCMF_MFP_NONE; 1811 rsn_cap = ie[offset] + (ie[offset + 1] << 8); 1812 if (rsn_cap & RSN_CAP_MFPR_MASK) 1813 mfp = BRCMF_MFP_REQUIRED; 1814 else if (rsn_cap & RSN_CAP_MFPC_MASK) 1815 mfp = BRCMF_MFP_CAPABLE; 1816 brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "mfp", mfp); 1817 1818 skip_mfp_config: 1819 brcmf_dbg(CONN, "setting wpa_auth to %d\n", val); 1820 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "wpa_auth", val); 1821 if (err) { 1822 brcmf_err("could not set wpa_auth (%d)\n", err); 1823 return err; 1824 } 1825 1826 return err; 1827 } 1828 1829 static s32 1830 brcmf_set_sharedkey(struct net_device *ndev, 1831 struct cfg80211_connect_params *sme) 1832 { 1833 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev); 1834 struct brcmf_cfg80211_security *sec; 1835 struct brcmf_wsec_key key; 1836 s32 val; 1837 s32 err = 0; 1838 1839 brcmf_dbg(CONN, "key len (%d)\n", sme->key_len); 1840 1841 if (sme->key_len == 0) 1842 return 0; 1843 1844 sec = &profile->sec; 1845 brcmf_dbg(CONN, "wpa_versions 0x%x cipher_pairwise 0x%x\n", 1846 sec->wpa_versions, sec->cipher_pairwise); 1847 1848 if (sec->wpa_versions & (NL80211_WPA_VERSION_1 | NL80211_WPA_VERSION_2)) 1849 return 0; 1850 1851 if (!(sec->cipher_pairwise & 1852 (WLAN_CIPHER_SUITE_WEP40 | WLAN_CIPHER_SUITE_WEP104))) 1853 return 0; 1854 1855 memset(&key, 0, sizeof(key)); 1856 key.len = (u32) sme->key_len; 1857 key.index = (u32) sme->key_idx; 1858 if (key.len > sizeof(key.data)) { 1859 brcmf_err("Too long key length (%u)\n", key.len); 1860 return -EINVAL; 1861 } 1862 memcpy(key.data, sme->key, key.len); 1863 key.flags = BRCMF_PRIMARY_KEY; 1864 switch (sec->cipher_pairwise) { 1865 case WLAN_CIPHER_SUITE_WEP40: 1866 key.algo = CRYPTO_ALGO_WEP1; 1867 break; 1868 case WLAN_CIPHER_SUITE_WEP104: 1869 key.algo = CRYPTO_ALGO_WEP128; 1870 break; 1871 default: 1872 brcmf_err("Invalid algorithm (%d)\n", 1873 sme->crypto.ciphers_pairwise[0]); 1874 return -EINVAL; 1875 } 1876 /* Set the new key/index */ 1877 brcmf_dbg(CONN, "key length (%d) key index (%d) algo (%d)\n", 1878 key.len, key.index, key.algo); 1879 brcmf_dbg(CONN, "key \"%s\"\n", key.data); 1880 err = send_key_to_dongle(netdev_priv(ndev), &key); 1881 if (err) 1882 return err; 1883 1884 if (sec->auth_type == NL80211_AUTHTYPE_SHARED_KEY) { 1885 brcmf_dbg(CONN, "set auth_type to shared key\n"); 1886 val = WL_AUTH_SHARED_KEY; /* shared key */ 1887 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "auth", val); 1888 if (err) 1889 brcmf_err("set auth failed (%d)\n", err); 1890 } 1891 return err; 1892 } 1893 1894 static 1895 enum nl80211_auth_type brcmf_war_auth_type(struct brcmf_if *ifp, 1896 enum nl80211_auth_type type) 1897 { 1898 if (type == NL80211_AUTHTYPE_AUTOMATIC && 1899 brcmf_feat_is_quirk_enabled(ifp, BRCMF_FEAT_QUIRK_AUTO_AUTH)) { 1900 brcmf_dbg(CONN, "WAR: use OPEN instead of AUTO\n"); 1901 type = NL80211_AUTHTYPE_OPEN_SYSTEM; 1902 } 1903 return type; 1904 } 1905 1906 static void brcmf_set_join_pref(struct brcmf_if *ifp, 1907 struct cfg80211_bss_selection *bss_select) 1908 { 1909 struct brcmf_join_pref_params join_pref_params[2]; 1910 enum nl80211_band band; 1911 int err, i = 0; 1912 1913 join_pref_params[i].len = 2; 1914 join_pref_params[i].rssi_gain = 0; 1915 1916 if (bss_select->behaviour != NL80211_BSS_SELECT_ATTR_BAND_PREF) 1917 brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_ASSOC_PREFER, WLC_BAND_AUTO); 1918 1919 switch (bss_select->behaviour) { 1920 case __NL80211_BSS_SELECT_ATTR_INVALID: 1921 brcmf_c_set_joinpref_default(ifp); 1922 return; 1923 case NL80211_BSS_SELECT_ATTR_BAND_PREF: 1924 join_pref_params[i].type = BRCMF_JOIN_PREF_BAND; 1925 band = bss_select->param.band_pref; 1926 join_pref_params[i].band = nl80211_band_to_fwil(band); 1927 i++; 1928 break; 1929 case NL80211_BSS_SELECT_ATTR_RSSI_ADJUST: 1930 join_pref_params[i].type = BRCMF_JOIN_PREF_RSSI_DELTA; 1931 band = bss_select->param.adjust.band; 1932 join_pref_params[i].band = nl80211_band_to_fwil(band); 1933 join_pref_params[i].rssi_gain = bss_select->param.adjust.delta; 1934 i++; 1935 break; 1936 case NL80211_BSS_SELECT_ATTR_RSSI: 1937 default: 1938 break; 1939 } 1940 join_pref_params[i].type = BRCMF_JOIN_PREF_RSSI; 1941 join_pref_params[i].len = 2; 1942 join_pref_params[i].rssi_gain = 0; 1943 join_pref_params[i].band = 0; 1944 err = brcmf_fil_iovar_data_set(ifp, "join_pref", join_pref_params, 1945 sizeof(join_pref_params)); 1946 if (err) 1947 brcmf_err("Set join_pref error (%d)\n", err); 1948 } 1949 1950 static s32 1951 brcmf_cfg80211_connect(struct wiphy *wiphy, struct net_device *ndev, 1952 struct cfg80211_connect_params *sme) 1953 { 1954 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 1955 struct brcmf_if *ifp = netdev_priv(ndev); 1956 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile; 1957 struct ieee80211_channel *chan = sme->channel; 1958 struct brcmf_join_params join_params; 1959 size_t join_params_size; 1960 const struct brcmf_tlv *rsn_ie; 1961 const struct brcmf_vs_tlv *wpa_ie; 1962 const void *ie; 1963 u32 ie_len; 1964 struct brcmf_ext_join_params_le *ext_join_params; 1965 u16 chanspec; 1966 s32 err = 0; 1967 u32 ssid_len; 1968 1969 brcmf_dbg(TRACE, "Enter\n"); 1970 if (!check_vif_up(ifp->vif)) 1971 return -EIO; 1972 1973 if (!sme->ssid) { 1974 brcmf_err("Invalid ssid\n"); 1975 return -EOPNOTSUPP; 1976 } 1977 1978 if (ifp->vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif) { 1979 /* A normal (non P2P) connection request setup. */ 1980 ie = NULL; 1981 ie_len = 0; 1982 /* find the WPA_IE */ 1983 wpa_ie = brcmf_find_wpaie((u8 *)sme->ie, sme->ie_len); 1984 if (wpa_ie) { 1985 ie = wpa_ie; 1986 ie_len = wpa_ie->len + TLV_HDR_LEN; 1987 } else { 1988 /* find the RSN_IE */ 1989 rsn_ie = brcmf_parse_tlvs((const u8 *)sme->ie, 1990 sme->ie_len, 1991 WLAN_EID_RSN); 1992 if (rsn_ie) { 1993 ie = rsn_ie; 1994 ie_len = rsn_ie->len + TLV_HDR_LEN; 1995 } 1996 } 1997 brcmf_fil_iovar_data_set(ifp, "wpaie", ie, ie_len); 1998 } 1999 2000 err = brcmf_vif_set_mgmt_ie(ifp->vif, BRCMF_VNDR_IE_ASSOCREQ_FLAG, 2001 sme->ie, sme->ie_len); 2002 if (err) 2003 brcmf_err("Set Assoc REQ IE Failed\n"); 2004 else 2005 brcmf_dbg(TRACE, "Applied Vndr IEs for Assoc request\n"); 2006 2007 set_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state); 2008 2009 if (chan) { 2010 cfg->channel = 2011 ieee80211_frequency_to_channel(chan->center_freq); 2012 chanspec = channel_to_chanspec(&cfg->d11inf, chan); 2013 brcmf_dbg(CONN, "channel=%d, center_req=%d, chanspec=0x%04x\n", 2014 cfg->channel, chan->center_freq, chanspec); 2015 } else { 2016 cfg->channel = 0; 2017 chanspec = 0; 2018 } 2019 2020 brcmf_dbg(INFO, "ie (%p), ie_len (%zd)\n", sme->ie, sme->ie_len); 2021 2022 err = brcmf_set_wpa_version(ndev, sme); 2023 if (err) { 2024 brcmf_err("wl_set_wpa_version failed (%d)\n", err); 2025 goto done; 2026 } 2027 2028 sme->auth_type = brcmf_war_auth_type(ifp, sme->auth_type); 2029 err = brcmf_set_auth_type(ndev, sme); 2030 if (err) { 2031 brcmf_err("wl_set_auth_type failed (%d)\n", err); 2032 goto done; 2033 } 2034 2035 err = brcmf_set_wsec_mode(ndev, sme); 2036 if (err) { 2037 brcmf_err("wl_set_set_cipher failed (%d)\n", err); 2038 goto done; 2039 } 2040 2041 err = brcmf_set_key_mgmt(ndev, sme); 2042 if (err) { 2043 brcmf_err("wl_set_key_mgmt failed (%d)\n", err); 2044 goto done; 2045 } 2046 2047 err = brcmf_set_sharedkey(ndev, sme); 2048 if (err) { 2049 brcmf_err("brcmf_set_sharedkey failed (%d)\n", err); 2050 goto done; 2051 } 2052 2053 if (sme->crypto.psk) { 2054 if (WARN_ON(profile->use_fwsup != BRCMF_PROFILE_FWSUP_NONE)) { 2055 err = -EINVAL; 2056 goto done; 2057 } 2058 brcmf_dbg(INFO, "using PSK offload\n"); 2059 profile->use_fwsup = BRCMF_PROFILE_FWSUP_PSK; 2060 } 2061 2062 if (profile->use_fwsup != BRCMF_PROFILE_FWSUP_NONE) { 2063 /* enable firmware supplicant for this interface */ 2064 err = brcmf_fil_iovar_int_set(ifp, "sup_wpa", 1); 2065 if (err < 0) { 2066 brcmf_err("failed to enable fw supplicant\n"); 2067 goto done; 2068 } 2069 } 2070 2071 if (profile->use_fwsup == BRCMF_PROFILE_FWSUP_PSK) { 2072 err = brcmf_set_pmk(ifp, sme->crypto.psk, 2073 BRCMF_WSEC_MAX_PSK_LEN); 2074 if (err) 2075 goto done; 2076 } 2077 2078 /* Join with specific BSSID and cached SSID 2079 * If SSID is zero join based on BSSID only 2080 */ 2081 join_params_size = offsetof(struct brcmf_ext_join_params_le, assoc_le) + 2082 offsetof(struct brcmf_assoc_params_le, chanspec_list); 2083 if (cfg->channel) 2084 join_params_size += sizeof(u16); 2085 ext_join_params = kzalloc(join_params_size, GFP_KERNEL); 2086 if (ext_join_params == NULL) { 2087 err = -ENOMEM; 2088 goto done; 2089 } 2090 ssid_len = min_t(u32, sme->ssid_len, IEEE80211_MAX_SSID_LEN); 2091 ext_join_params->ssid_le.SSID_len = cpu_to_le32(ssid_len); 2092 memcpy(&ext_join_params->ssid_le.SSID, sme->ssid, ssid_len); 2093 if (ssid_len < IEEE80211_MAX_SSID_LEN) 2094 brcmf_dbg(CONN, "SSID \"%s\", len (%d)\n", 2095 ext_join_params->ssid_le.SSID, ssid_len); 2096 2097 /* Set up join scan parameters */ 2098 ext_join_params->scan_le.scan_type = -1; 2099 ext_join_params->scan_le.home_time = cpu_to_le32(-1); 2100 2101 if (sme->bssid) 2102 memcpy(&ext_join_params->assoc_le.bssid, sme->bssid, ETH_ALEN); 2103 else 2104 eth_broadcast_addr(ext_join_params->assoc_le.bssid); 2105 2106 if (cfg->channel) { 2107 ext_join_params->assoc_le.chanspec_num = cpu_to_le32(1); 2108 2109 ext_join_params->assoc_le.chanspec_list[0] = 2110 cpu_to_le16(chanspec); 2111 /* Increase dwell time to receive probe response or detect 2112 * beacon from target AP at a noisy air only during connect 2113 * command. 2114 */ 2115 ext_join_params->scan_le.active_time = 2116 cpu_to_le32(BRCMF_SCAN_JOIN_ACTIVE_DWELL_TIME_MS); 2117 ext_join_params->scan_le.passive_time = 2118 cpu_to_le32(BRCMF_SCAN_JOIN_PASSIVE_DWELL_TIME_MS); 2119 /* To sync with presence period of VSDB GO send probe request 2120 * more frequently. Probe request will be stopped when it gets 2121 * probe response from target AP/GO. 2122 */ 2123 ext_join_params->scan_le.nprobes = 2124 cpu_to_le32(BRCMF_SCAN_JOIN_ACTIVE_DWELL_TIME_MS / 2125 BRCMF_SCAN_JOIN_PROBE_INTERVAL_MS); 2126 } else { 2127 ext_join_params->scan_le.active_time = cpu_to_le32(-1); 2128 ext_join_params->scan_le.passive_time = cpu_to_le32(-1); 2129 ext_join_params->scan_le.nprobes = cpu_to_le32(-1); 2130 } 2131 2132 brcmf_set_join_pref(ifp, &sme->bss_select); 2133 2134 err = brcmf_fil_bsscfg_data_set(ifp, "join", ext_join_params, 2135 join_params_size); 2136 kfree(ext_join_params); 2137 if (!err) 2138 /* This is it. join command worked, we are done */ 2139 goto done; 2140 2141 /* join command failed, fallback to set ssid */ 2142 memset(&join_params, 0, sizeof(join_params)); 2143 join_params_size = sizeof(join_params.ssid_le); 2144 2145 memcpy(&join_params.ssid_le.SSID, sme->ssid, ssid_len); 2146 join_params.ssid_le.SSID_len = cpu_to_le32(ssid_len); 2147 2148 if (sme->bssid) 2149 memcpy(join_params.params_le.bssid, sme->bssid, ETH_ALEN); 2150 else 2151 eth_broadcast_addr(join_params.params_le.bssid); 2152 2153 if (cfg->channel) { 2154 join_params.params_le.chanspec_list[0] = cpu_to_le16(chanspec); 2155 join_params.params_le.chanspec_num = cpu_to_le32(1); 2156 join_params_size += sizeof(join_params.params_le); 2157 } 2158 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID, 2159 &join_params, join_params_size); 2160 if (err) 2161 brcmf_err("BRCMF_C_SET_SSID failed (%d)\n", err); 2162 2163 done: 2164 if (err) 2165 clear_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state); 2166 brcmf_dbg(TRACE, "Exit\n"); 2167 return err; 2168 } 2169 2170 static s32 2171 brcmf_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *ndev, 2172 u16 reason_code) 2173 { 2174 struct brcmf_if *ifp = netdev_priv(ndev); 2175 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile; 2176 struct brcmf_scb_val_le scbval; 2177 s32 err = 0; 2178 2179 brcmf_dbg(TRACE, "Enter. Reason code = %d\n", reason_code); 2180 if (!check_vif_up(ifp->vif)) 2181 return -EIO; 2182 2183 clear_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state); 2184 clear_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state); 2185 cfg80211_disconnected(ndev, reason_code, NULL, 0, true, GFP_KERNEL); 2186 2187 memcpy(&scbval.ea, &profile->bssid, ETH_ALEN); 2188 scbval.val = cpu_to_le32(reason_code); 2189 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_DISASSOC, 2190 &scbval, sizeof(scbval)); 2191 if (err) 2192 brcmf_err("error (%d)\n", err); 2193 2194 brcmf_dbg(TRACE, "Exit\n"); 2195 return err; 2196 } 2197 2198 static s32 2199 brcmf_cfg80211_set_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev, 2200 enum nl80211_tx_power_setting type, s32 mbm) 2201 { 2202 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 2203 struct net_device *ndev = cfg_to_ndev(cfg); 2204 struct brcmf_if *ifp = netdev_priv(ndev); 2205 s32 err; 2206 s32 disable; 2207 u32 qdbm = 127; 2208 2209 brcmf_dbg(TRACE, "Enter %d %d\n", type, mbm); 2210 if (!check_vif_up(ifp->vif)) 2211 return -EIO; 2212 2213 switch (type) { 2214 case NL80211_TX_POWER_AUTOMATIC: 2215 break; 2216 case NL80211_TX_POWER_LIMITED: 2217 case NL80211_TX_POWER_FIXED: 2218 if (mbm < 0) { 2219 brcmf_err("TX_POWER_FIXED - dbm is negative\n"); 2220 err = -EINVAL; 2221 goto done; 2222 } 2223 qdbm = MBM_TO_DBM(4 * mbm); 2224 if (qdbm > 127) 2225 qdbm = 127; 2226 qdbm |= WL_TXPWR_OVERRIDE; 2227 break; 2228 default: 2229 brcmf_err("Unsupported type %d\n", type); 2230 err = -EINVAL; 2231 goto done; 2232 } 2233 /* Make sure radio is off or on as far as software is concerned */ 2234 disable = WL_RADIO_SW_DISABLE << 16; 2235 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_RADIO, disable); 2236 if (err) 2237 brcmf_err("WLC_SET_RADIO error (%d)\n", err); 2238 2239 err = brcmf_fil_iovar_int_set(ifp, "qtxpower", qdbm); 2240 if (err) 2241 brcmf_err("qtxpower error (%d)\n", err); 2242 2243 done: 2244 brcmf_dbg(TRACE, "Exit %d (qdbm)\n", qdbm & ~WL_TXPWR_OVERRIDE); 2245 return err; 2246 } 2247 2248 static s32 2249 brcmf_cfg80211_get_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev, 2250 s32 *dbm) 2251 { 2252 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 2253 struct net_device *ndev = cfg_to_ndev(cfg); 2254 struct brcmf_if *ifp = netdev_priv(ndev); 2255 s32 qdbm = 0; 2256 s32 err; 2257 2258 brcmf_dbg(TRACE, "Enter\n"); 2259 if (!check_vif_up(ifp->vif)) 2260 return -EIO; 2261 2262 err = brcmf_fil_iovar_int_get(ifp, "qtxpower", &qdbm); 2263 if (err) { 2264 brcmf_err("error (%d)\n", err); 2265 goto done; 2266 } 2267 *dbm = (qdbm & ~WL_TXPWR_OVERRIDE) / 4; 2268 2269 done: 2270 brcmf_dbg(TRACE, "Exit (0x%x %d)\n", qdbm, *dbm); 2271 return err; 2272 } 2273 2274 static s32 2275 brcmf_cfg80211_config_default_key(struct wiphy *wiphy, struct net_device *ndev, 2276 u8 key_idx, bool unicast, bool multicast) 2277 { 2278 struct brcmf_if *ifp = netdev_priv(ndev); 2279 u32 index; 2280 u32 wsec; 2281 s32 err = 0; 2282 2283 brcmf_dbg(TRACE, "Enter\n"); 2284 brcmf_dbg(CONN, "key index (%d)\n", key_idx); 2285 if (!check_vif_up(ifp->vif)) 2286 return -EIO; 2287 2288 err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec); 2289 if (err) { 2290 brcmf_err("WLC_GET_WSEC error (%d)\n", err); 2291 goto done; 2292 } 2293 2294 if (wsec & WEP_ENABLED) { 2295 /* Just select a new current key */ 2296 index = key_idx; 2297 err = brcmf_fil_cmd_int_set(ifp, 2298 BRCMF_C_SET_KEY_PRIMARY, index); 2299 if (err) 2300 brcmf_err("error (%d)\n", err); 2301 } 2302 done: 2303 brcmf_dbg(TRACE, "Exit\n"); 2304 return err; 2305 } 2306 2307 static s32 2308 brcmf_cfg80211_del_key(struct wiphy *wiphy, struct net_device *ndev, 2309 u8 key_idx, bool pairwise, const u8 *mac_addr) 2310 { 2311 struct brcmf_if *ifp = netdev_priv(ndev); 2312 struct brcmf_wsec_key *key; 2313 s32 err; 2314 2315 brcmf_dbg(TRACE, "Enter\n"); 2316 brcmf_dbg(CONN, "key index (%d)\n", key_idx); 2317 2318 if (!check_vif_up(ifp->vif)) 2319 return -EIO; 2320 2321 if (key_idx >= BRCMF_MAX_DEFAULT_KEYS) { 2322 /* we ignore this key index in this case */ 2323 return -EINVAL; 2324 } 2325 2326 key = &ifp->vif->profile.key[key_idx]; 2327 2328 if (key->algo == CRYPTO_ALGO_OFF) { 2329 brcmf_dbg(CONN, "Ignore clearing of (never configured) key\n"); 2330 return -EINVAL; 2331 } 2332 2333 memset(key, 0, sizeof(*key)); 2334 key->index = (u32)key_idx; 2335 key->flags = BRCMF_PRIMARY_KEY; 2336 2337 /* Clear the key/index */ 2338 err = send_key_to_dongle(ifp, key); 2339 2340 brcmf_dbg(TRACE, "Exit\n"); 2341 return err; 2342 } 2343 2344 static s32 2345 brcmf_cfg80211_add_key(struct wiphy *wiphy, struct net_device *ndev, 2346 u8 key_idx, bool pairwise, const u8 *mac_addr, 2347 struct key_params *params) 2348 { 2349 struct brcmf_if *ifp = netdev_priv(ndev); 2350 struct brcmf_wsec_key *key; 2351 s32 val; 2352 s32 wsec; 2353 s32 err; 2354 u8 keybuf[8]; 2355 bool ext_key; 2356 2357 brcmf_dbg(TRACE, "Enter\n"); 2358 brcmf_dbg(CONN, "key index (%d)\n", key_idx); 2359 if (!check_vif_up(ifp->vif)) 2360 return -EIO; 2361 2362 if (key_idx >= BRCMF_MAX_DEFAULT_KEYS) { 2363 /* we ignore this key index in this case */ 2364 brcmf_err("invalid key index (%d)\n", key_idx); 2365 return -EINVAL; 2366 } 2367 2368 if (params->key_len == 0) 2369 return brcmf_cfg80211_del_key(wiphy, ndev, key_idx, pairwise, 2370 mac_addr); 2371 2372 if (params->key_len > sizeof(key->data)) { 2373 brcmf_err("Too long key length (%u)\n", params->key_len); 2374 return -EINVAL; 2375 } 2376 2377 ext_key = false; 2378 if (mac_addr && (params->cipher != WLAN_CIPHER_SUITE_WEP40) && 2379 (params->cipher != WLAN_CIPHER_SUITE_WEP104)) { 2380 brcmf_dbg(TRACE, "Ext key, mac %pM", mac_addr); 2381 ext_key = true; 2382 } 2383 2384 key = &ifp->vif->profile.key[key_idx]; 2385 memset(key, 0, sizeof(*key)); 2386 if ((ext_key) && (!is_multicast_ether_addr(mac_addr))) 2387 memcpy((char *)&key->ea, (void *)mac_addr, ETH_ALEN); 2388 key->len = params->key_len; 2389 key->index = key_idx; 2390 memcpy(key->data, params->key, key->len); 2391 if (!ext_key) 2392 key->flags = BRCMF_PRIMARY_KEY; 2393 2394 switch (params->cipher) { 2395 case WLAN_CIPHER_SUITE_WEP40: 2396 key->algo = CRYPTO_ALGO_WEP1; 2397 val = WEP_ENABLED; 2398 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP40\n"); 2399 break; 2400 case WLAN_CIPHER_SUITE_WEP104: 2401 key->algo = CRYPTO_ALGO_WEP128; 2402 val = WEP_ENABLED; 2403 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP104\n"); 2404 break; 2405 case WLAN_CIPHER_SUITE_TKIP: 2406 if (!brcmf_is_apmode(ifp->vif)) { 2407 brcmf_dbg(CONN, "Swapping RX/TX MIC key\n"); 2408 memcpy(keybuf, &key->data[24], sizeof(keybuf)); 2409 memcpy(&key->data[24], &key->data[16], sizeof(keybuf)); 2410 memcpy(&key->data[16], keybuf, sizeof(keybuf)); 2411 } 2412 key->algo = CRYPTO_ALGO_TKIP; 2413 val = TKIP_ENABLED; 2414 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_TKIP\n"); 2415 break; 2416 case WLAN_CIPHER_SUITE_AES_CMAC: 2417 key->algo = CRYPTO_ALGO_AES_CCM; 2418 val = AES_ENABLED; 2419 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_AES_CMAC\n"); 2420 break; 2421 case WLAN_CIPHER_SUITE_CCMP: 2422 key->algo = CRYPTO_ALGO_AES_CCM; 2423 val = AES_ENABLED; 2424 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_CCMP\n"); 2425 break; 2426 default: 2427 brcmf_err("Invalid cipher (0x%x)\n", params->cipher); 2428 err = -EINVAL; 2429 goto done; 2430 } 2431 2432 err = send_key_to_dongle(ifp, key); 2433 if (ext_key || err) 2434 goto done; 2435 2436 err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec); 2437 if (err) { 2438 brcmf_err("get wsec error (%d)\n", err); 2439 goto done; 2440 } 2441 wsec |= val; 2442 err = brcmf_fil_bsscfg_int_set(ifp, "wsec", wsec); 2443 if (err) { 2444 brcmf_err("set wsec error (%d)\n", err); 2445 goto done; 2446 } 2447 2448 done: 2449 brcmf_dbg(TRACE, "Exit\n"); 2450 return err; 2451 } 2452 2453 static s32 2454 brcmf_cfg80211_get_key(struct wiphy *wiphy, struct net_device *ndev, u8 key_idx, 2455 bool pairwise, const u8 *mac_addr, void *cookie, 2456 void (*callback)(void *cookie, 2457 struct key_params *params)) 2458 { 2459 struct key_params params; 2460 struct brcmf_if *ifp = netdev_priv(ndev); 2461 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile; 2462 struct brcmf_cfg80211_security *sec; 2463 s32 wsec; 2464 s32 err = 0; 2465 2466 brcmf_dbg(TRACE, "Enter\n"); 2467 brcmf_dbg(CONN, "key index (%d)\n", key_idx); 2468 if (!check_vif_up(ifp->vif)) 2469 return -EIO; 2470 2471 memset(¶ms, 0, sizeof(params)); 2472 2473 err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec); 2474 if (err) { 2475 brcmf_err("WLC_GET_WSEC error (%d)\n", err); 2476 /* Ignore this error, may happen during DISASSOC */ 2477 err = -EAGAIN; 2478 goto done; 2479 } 2480 if (wsec & WEP_ENABLED) { 2481 sec = &profile->sec; 2482 if (sec->cipher_pairwise & WLAN_CIPHER_SUITE_WEP40) { 2483 params.cipher = WLAN_CIPHER_SUITE_WEP40; 2484 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP40\n"); 2485 } else if (sec->cipher_pairwise & WLAN_CIPHER_SUITE_WEP104) { 2486 params.cipher = WLAN_CIPHER_SUITE_WEP104; 2487 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_WEP104\n"); 2488 } 2489 } else if (wsec & TKIP_ENABLED) { 2490 params.cipher = WLAN_CIPHER_SUITE_TKIP; 2491 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_TKIP\n"); 2492 } else if (wsec & AES_ENABLED) { 2493 params.cipher = WLAN_CIPHER_SUITE_AES_CMAC; 2494 brcmf_dbg(CONN, "WLAN_CIPHER_SUITE_AES_CMAC\n"); 2495 } else { 2496 brcmf_err("Invalid algo (0x%x)\n", wsec); 2497 err = -EINVAL; 2498 goto done; 2499 } 2500 callback(cookie, ¶ms); 2501 2502 done: 2503 brcmf_dbg(TRACE, "Exit\n"); 2504 return err; 2505 } 2506 2507 static s32 2508 brcmf_cfg80211_config_default_mgmt_key(struct wiphy *wiphy, 2509 struct net_device *ndev, u8 key_idx) 2510 { 2511 struct brcmf_if *ifp = netdev_priv(ndev); 2512 2513 brcmf_dbg(TRACE, "Enter key_idx %d\n", key_idx); 2514 2515 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MFP)) 2516 return 0; 2517 2518 brcmf_dbg(INFO, "Not supported\n"); 2519 2520 return -EOPNOTSUPP; 2521 } 2522 2523 static void 2524 brcmf_cfg80211_reconfigure_wep(struct brcmf_if *ifp) 2525 { 2526 s32 err; 2527 u8 key_idx; 2528 struct brcmf_wsec_key *key; 2529 s32 wsec; 2530 2531 for (key_idx = 0; key_idx < BRCMF_MAX_DEFAULT_KEYS; key_idx++) { 2532 key = &ifp->vif->profile.key[key_idx]; 2533 if ((key->algo == CRYPTO_ALGO_WEP1) || 2534 (key->algo == CRYPTO_ALGO_WEP128)) 2535 break; 2536 } 2537 if (key_idx == BRCMF_MAX_DEFAULT_KEYS) 2538 return; 2539 2540 err = send_key_to_dongle(ifp, key); 2541 if (err) { 2542 brcmf_err("Setting WEP key failed (%d)\n", err); 2543 return; 2544 } 2545 err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec); 2546 if (err) { 2547 brcmf_err("get wsec error (%d)\n", err); 2548 return; 2549 } 2550 wsec |= WEP_ENABLED; 2551 err = brcmf_fil_bsscfg_int_set(ifp, "wsec", wsec); 2552 if (err) 2553 brcmf_err("set wsec error (%d)\n", err); 2554 } 2555 2556 static void brcmf_convert_sta_flags(u32 fw_sta_flags, struct station_info *si) 2557 { 2558 struct nl80211_sta_flag_update *sfu; 2559 2560 brcmf_dbg(TRACE, "flags %08x\n", fw_sta_flags); 2561 si->filled |= BIT(NL80211_STA_INFO_STA_FLAGS); 2562 sfu = &si->sta_flags; 2563 sfu->mask = BIT(NL80211_STA_FLAG_WME) | 2564 BIT(NL80211_STA_FLAG_AUTHENTICATED) | 2565 BIT(NL80211_STA_FLAG_ASSOCIATED) | 2566 BIT(NL80211_STA_FLAG_AUTHORIZED); 2567 if (fw_sta_flags & BRCMF_STA_WME) 2568 sfu->set |= BIT(NL80211_STA_FLAG_WME); 2569 if (fw_sta_flags & BRCMF_STA_AUTHE) 2570 sfu->set |= BIT(NL80211_STA_FLAG_AUTHENTICATED); 2571 if (fw_sta_flags & BRCMF_STA_ASSOC) 2572 sfu->set |= BIT(NL80211_STA_FLAG_ASSOCIATED); 2573 if (fw_sta_flags & BRCMF_STA_AUTHO) 2574 sfu->set |= BIT(NL80211_STA_FLAG_AUTHORIZED); 2575 } 2576 2577 static void brcmf_fill_bss_param(struct brcmf_if *ifp, struct station_info *si) 2578 { 2579 struct { 2580 __le32 len; 2581 struct brcmf_bss_info_le bss_le; 2582 } *buf; 2583 u16 capability; 2584 int err; 2585 2586 buf = kzalloc(WL_BSS_INFO_MAX, GFP_KERNEL); 2587 if (!buf) 2588 return; 2589 2590 buf->len = cpu_to_le32(WL_BSS_INFO_MAX); 2591 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BSS_INFO, buf, 2592 WL_BSS_INFO_MAX); 2593 if (err) { 2594 brcmf_err("Failed to get bss info (%d)\n", err); 2595 goto out_kfree; 2596 } 2597 si->filled |= BIT(NL80211_STA_INFO_BSS_PARAM); 2598 si->bss_param.beacon_interval = le16_to_cpu(buf->bss_le.beacon_period); 2599 si->bss_param.dtim_period = buf->bss_le.dtim_period; 2600 capability = le16_to_cpu(buf->bss_le.capability); 2601 if (capability & IEEE80211_HT_STBC_PARAM_DUAL_CTS_PROT) 2602 si->bss_param.flags |= BSS_PARAM_FLAGS_CTS_PROT; 2603 if (capability & WLAN_CAPABILITY_SHORT_PREAMBLE) 2604 si->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_PREAMBLE; 2605 if (capability & WLAN_CAPABILITY_SHORT_SLOT_TIME) 2606 si->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_SLOT_TIME; 2607 2608 out_kfree: 2609 kfree(buf); 2610 } 2611 2612 static s32 2613 brcmf_cfg80211_get_station_ibss(struct brcmf_if *ifp, 2614 struct station_info *sinfo) 2615 { 2616 struct brcmf_scb_val_le scbval; 2617 struct brcmf_pktcnt_le pktcnt; 2618 s32 err; 2619 u32 rate; 2620 u32 rssi; 2621 2622 /* Get the current tx rate */ 2623 err = brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_RATE, &rate); 2624 if (err < 0) { 2625 brcmf_err("BRCMF_C_GET_RATE error (%d)\n", err); 2626 return err; 2627 } 2628 sinfo->filled |= BIT(NL80211_STA_INFO_TX_BITRATE); 2629 sinfo->txrate.legacy = rate * 5; 2630 2631 memset(&scbval, 0, sizeof(scbval)); 2632 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_RSSI, &scbval, 2633 sizeof(scbval)); 2634 if (err) { 2635 brcmf_err("BRCMF_C_GET_RSSI error (%d)\n", err); 2636 return err; 2637 } 2638 rssi = le32_to_cpu(scbval.val); 2639 sinfo->filled |= BIT(NL80211_STA_INFO_SIGNAL); 2640 sinfo->signal = rssi; 2641 2642 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_GET_PKTCNTS, &pktcnt, 2643 sizeof(pktcnt)); 2644 if (err) { 2645 brcmf_err("BRCMF_C_GET_GET_PKTCNTS error (%d)\n", err); 2646 return err; 2647 } 2648 sinfo->filled |= BIT(NL80211_STA_INFO_RX_PACKETS) | 2649 BIT(NL80211_STA_INFO_RX_DROP_MISC) | 2650 BIT(NL80211_STA_INFO_TX_PACKETS) | 2651 BIT(NL80211_STA_INFO_TX_FAILED); 2652 sinfo->rx_packets = le32_to_cpu(pktcnt.rx_good_pkt); 2653 sinfo->rx_dropped_misc = le32_to_cpu(pktcnt.rx_bad_pkt); 2654 sinfo->tx_packets = le32_to_cpu(pktcnt.tx_good_pkt); 2655 sinfo->tx_failed = le32_to_cpu(pktcnt.tx_bad_pkt); 2656 2657 return 0; 2658 } 2659 2660 static s32 2661 brcmf_cfg80211_get_station(struct wiphy *wiphy, struct net_device *ndev, 2662 const u8 *mac, struct station_info *sinfo) 2663 { 2664 struct brcmf_if *ifp = netdev_priv(ndev); 2665 struct brcmf_scb_val_le scb_val; 2666 s32 err = 0; 2667 struct brcmf_sta_info_le sta_info_le; 2668 u32 sta_flags; 2669 u32 is_tdls_peer; 2670 s32 total_rssi; 2671 s32 count_rssi; 2672 int rssi; 2673 u32 i; 2674 2675 brcmf_dbg(TRACE, "Enter, MAC %pM\n", mac); 2676 if (!check_vif_up(ifp->vif)) 2677 return -EIO; 2678 2679 if (brcmf_is_ibssmode(ifp->vif)) 2680 return brcmf_cfg80211_get_station_ibss(ifp, sinfo); 2681 2682 memset(&sta_info_le, 0, sizeof(sta_info_le)); 2683 memcpy(&sta_info_le, mac, ETH_ALEN); 2684 err = brcmf_fil_iovar_data_get(ifp, "tdls_sta_info", 2685 &sta_info_le, 2686 sizeof(sta_info_le)); 2687 is_tdls_peer = !err; 2688 if (err) { 2689 err = brcmf_fil_iovar_data_get(ifp, "sta_info", 2690 &sta_info_le, 2691 sizeof(sta_info_le)); 2692 if (err < 0) { 2693 brcmf_err("GET STA INFO failed, %d\n", err); 2694 goto done; 2695 } 2696 } 2697 brcmf_dbg(TRACE, "version %d\n", le16_to_cpu(sta_info_le.ver)); 2698 sinfo->filled = BIT(NL80211_STA_INFO_INACTIVE_TIME); 2699 sinfo->inactive_time = le32_to_cpu(sta_info_le.idle) * 1000; 2700 sta_flags = le32_to_cpu(sta_info_le.flags); 2701 brcmf_convert_sta_flags(sta_flags, sinfo); 2702 sinfo->sta_flags.mask |= BIT(NL80211_STA_FLAG_TDLS_PEER); 2703 if (is_tdls_peer) 2704 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_TDLS_PEER); 2705 else 2706 sinfo->sta_flags.set &= ~BIT(NL80211_STA_FLAG_TDLS_PEER); 2707 if (sta_flags & BRCMF_STA_ASSOC) { 2708 sinfo->filled |= BIT(NL80211_STA_INFO_CONNECTED_TIME); 2709 sinfo->connected_time = le32_to_cpu(sta_info_le.in); 2710 brcmf_fill_bss_param(ifp, sinfo); 2711 } 2712 if (sta_flags & BRCMF_STA_SCBSTATS) { 2713 sinfo->filled |= BIT(NL80211_STA_INFO_TX_FAILED); 2714 sinfo->tx_failed = le32_to_cpu(sta_info_le.tx_failures); 2715 sinfo->filled |= BIT(NL80211_STA_INFO_TX_PACKETS); 2716 sinfo->tx_packets = le32_to_cpu(sta_info_le.tx_pkts); 2717 sinfo->tx_packets += le32_to_cpu(sta_info_le.tx_mcast_pkts); 2718 sinfo->filled |= BIT(NL80211_STA_INFO_RX_PACKETS); 2719 sinfo->rx_packets = le32_to_cpu(sta_info_le.rx_ucast_pkts); 2720 sinfo->rx_packets += le32_to_cpu(sta_info_le.rx_mcast_pkts); 2721 if (sinfo->tx_packets) { 2722 sinfo->filled |= BIT(NL80211_STA_INFO_TX_BITRATE); 2723 sinfo->txrate.legacy = 2724 le32_to_cpu(sta_info_le.tx_rate) / 100; 2725 } 2726 if (sinfo->rx_packets) { 2727 sinfo->filled |= BIT(NL80211_STA_INFO_RX_BITRATE); 2728 sinfo->rxrate.legacy = 2729 le32_to_cpu(sta_info_le.rx_rate) / 100; 2730 } 2731 if (le16_to_cpu(sta_info_le.ver) >= 4) { 2732 sinfo->filled |= BIT(NL80211_STA_INFO_TX_BYTES); 2733 sinfo->tx_bytes = le64_to_cpu(sta_info_le.tx_tot_bytes); 2734 sinfo->filled |= BIT(NL80211_STA_INFO_RX_BYTES); 2735 sinfo->rx_bytes = le64_to_cpu(sta_info_le.rx_tot_bytes); 2736 } 2737 total_rssi = 0; 2738 count_rssi = 0; 2739 for (i = 0; i < BRCMF_ANT_MAX; i++) { 2740 if (sta_info_le.rssi[i]) { 2741 sinfo->chain_signal_avg[count_rssi] = 2742 sta_info_le.rssi[i]; 2743 sinfo->chain_signal[count_rssi] = 2744 sta_info_le.rssi[i]; 2745 total_rssi += sta_info_le.rssi[i]; 2746 count_rssi++; 2747 } 2748 } 2749 if (count_rssi) { 2750 sinfo->filled |= BIT(NL80211_STA_INFO_CHAIN_SIGNAL); 2751 sinfo->chains = count_rssi; 2752 2753 sinfo->filled |= BIT(NL80211_STA_INFO_SIGNAL); 2754 total_rssi /= count_rssi; 2755 sinfo->signal = total_rssi; 2756 } else if (test_bit(BRCMF_VIF_STATUS_CONNECTED, 2757 &ifp->vif->sme_state)) { 2758 memset(&scb_val, 0, sizeof(scb_val)); 2759 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_RSSI, 2760 &scb_val, sizeof(scb_val)); 2761 if (err) { 2762 brcmf_err("Could not get rssi (%d)\n", err); 2763 goto done; 2764 } else { 2765 rssi = le32_to_cpu(scb_val.val); 2766 sinfo->filled |= BIT(NL80211_STA_INFO_SIGNAL); 2767 sinfo->signal = rssi; 2768 brcmf_dbg(CONN, "RSSI %d dBm\n", rssi); 2769 } 2770 } 2771 } 2772 done: 2773 brcmf_dbg(TRACE, "Exit\n"); 2774 return err; 2775 } 2776 2777 static int 2778 brcmf_cfg80211_dump_station(struct wiphy *wiphy, struct net_device *ndev, 2779 int idx, u8 *mac, struct station_info *sinfo) 2780 { 2781 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 2782 struct brcmf_if *ifp = netdev_priv(ndev); 2783 s32 err; 2784 2785 brcmf_dbg(TRACE, "Enter, idx %d\n", idx); 2786 2787 if (idx == 0) { 2788 cfg->assoclist.count = cpu_to_le32(BRCMF_MAX_ASSOCLIST); 2789 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_ASSOCLIST, 2790 &cfg->assoclist, 2791 sizeof(cfg->assoclist)); 2792 if (err) { 2793 brcmf_err("BRCMF_C_GET_ASSOCLIST unsupported, err=%d\n", 2794 err); 2795 cfg->assoclist.count = 0; 2796 return -EOPNOTSUPP; 2797 } 2798 } 2799 if (idx < le32_to_cpu(cfg->assoclist.count)) { 2800 memcpy(mac, cfg->assoclist.mac[idx], ETH_ALEN); 2801 return brcmf_cfg80211_get_station(wiphy, ndev, mac, sinfo); 2802 } 2803 return -ENOENT; 2804 } 2805 2806 static s32 2807 brcmf_cfg80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *ndev, 2808 bool enabled, s32 timeout) 2809 { 2810 s32 pm; 2811 s32 err = 0; 2812 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 2813 struct brcmf_if *ifp = netdev_priv(ndev); 2814 2815 brcmf_dbg(TRACE, "Enter\n"); 2816 2817 /* 2818 * Powersave enable/disable request is coming from the 2819 * cfg80211 even before the interface is up. In that 2820 * scenario, driver will be storing the power save 2821 * preference in cfg struct to apply this to 2822 * FW later while initializing the dongle 2823 */ 2824 cfg->pwr_save = enabled; 2825 if (!check_vif_up(ifp->vif)) { 2826 2827 brcmf_dbg(INFO, "Device is not ready, storing the value in cfg_info struct\n"); 2828 goto done; 2829 } 2830 2831 pm = enabled ? PM_FAST : PM_OFF; 2832 /* Do not enable the power save after assoc if it is a p2p interface */ 2833 if (ifp->vif->wdev.iftype == NL80211_IFTYPE_P2P_CLIENT) { 2834 brcmf_dbg(INFO, "Do not enable power save for P2P clients\n"); 2835 pm = PM_OFF; 2836 } 2837 brcmf_dbg(INFO, "power save %s\n", (pm ? "enabled" : "disabled")); 2838 2839 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM, pm); 2840 if (err) { 2841 if (err == -ENODEV) 2842 brcmf_err("net_device is not ready yet\n"); 2843 else 2844 brcmf_err("error (%d)\n", err); 2845 } 2846 done: 2847 brcmf_dbg(TRACE, "Exit\n"); 2848 return err; 2849 } 2850 2851 static s32 brcmf_inform_single_bss(struct brcmf_cfg80211_info *cfg, 2852 struct brcmf_bss_info_le *bi) 2853 { 2854 struct wiphy *wiphy = cfg_to_wiphy(cfg); 2855 struct ieee80211_channel *notify_channel; 2856 struct cfg80211_bss *bss; 2857 struct ieee80211_supported_band *band; 2858 struct brcmu_chan ch; 2859 u16 channel; 2860 u32 freq; 2861 u16 notify_capability; 2862 u16 notify_interval; 2863 u8 *notify_ie; 2864 size_t notify_ielen; 2865 s32 notify_signal; 2866 2867 if (le32_to_cpu(bi->length) > WL_BSS_INFO_MAX) { 2868 brcmf_err("Bss info is larger than buffer. Discarding\n"); 2869 return 0; 2870 } 2871 2872 if (!bi->ctl_ch) { 2873 ch.chspec = le16_to_cpu(bi->chanspec); 2874 cfg->d11inf.decchspec(&ch); 2875 bi->ctl_ch = ch.control_ch_num; 2876 } 2877 channel = bi->ctl_ch; 2878 2879 if (channel <= CH_MAX_2G_CHANNEL) 2880 band = wiphy->bands[NL80211_BAND_2GHZ]; 2881 else 2882 band = wiphy->bands[NL80211_BAND_5GHZ]; 2883 2884 freq = ieee80211_channel_to_frequency(channel, band->band); 2885 notify_channel = ieee80211_get_channel(wiphy, freq); 2886 2887 notify_capability = le16_to_cpu(bi->capability); 2888 notify_interval = le16_to_cpu(bi->beacon_period); 2889 notify_ie = (u8 *)bi + le16_to_cpu(bi->ie_offset); 2890 notify_ielen = le32_to_cpu(bi->ie_length); 2891 notify_signal = (s16)le16_to_cpu(bi->RSSI) * 100; 2892 2893 brcmf_dbg(CONN, "bssid: %pM\n", bi->BSSID); 2894 brcmf_dbg(CONN, "Channel: %d(%d)\n", channel, freq); 2895 brcmf_dbg(CONN, "Capability: %X\n", notify_capability); 2896 brcmf_dbg(CONN, "Beacon interval: %d\n", notify_interval); 2897 brcmf_dbg(CONN, "Signal: %d\n", notify_signal); 2898 2899 bss = cfg80211_inform_bss(wiphy, notify_channel, 2900 CFG80211_BSS_FTYPE_UNKNOWN, 2901 (const u8 *)bi->BSSID, 2902 0, notify_capability, 2903 notify_interval, notify_ie, 2904 notify_ielen, notify_signal, 2905 GFP_KERNEL); 2906 2907 if (!bss) 2908 return -ENOMEM; 2909 2910 cfg80211_put_bss(wiphy, bss); 2911 2912 return 0; 2913 } 2914 2915 static struct brcmf_bss_info_le * 2916 next_bss_le(struct brcmf_scan_results *list, struct brcmf_bss_info_le *bss) 2917 { 2918 if (bss == NULL) 2919 return list->bss_info_le; 2920 return (struct brcmf_bss_info_le *)((unsigned long)bss + 2921 le32_to_cpu(bss->length)); 2922 } 2923 2924 static s32 brcmf_inform_bss(struct brcmf_cfg80211_info *cfg) 2925 { 2926 struct brcmf_scan_results *bss_list; 2927 struct brcmf_bss_info_le *bi = NULL; /* must be initialized */ 2928 s32 err = 0; 2929 int i; 2930 2931 bss_list = (struct brcmf_scan_results *)cfg->escan_info.escan_buf; 2932 if (bss_list->count != 0 && 2933 bss_list->version != BRCMF_BSS_INFO_VERSION) { 2934 brcmf_err("Version %d != WL_BSS_INFO_VERSION\n", 2935 bss_list->version); 2936 return -EOPNOTSUPP; 2937 } 2938 brcmf_dbg(SCAN, "scanned AP count (%d)\n", bss_list->count); 2939 for (i = 0; i < bss_list->count; i++) { 2940 bi = next_bss_le(bss_list, bi); 2941 err = brcmf_inform_single_bss(cfg, bi); 2942 if (err) 2943 break; 2944 } 2945 return err; 2946 } 2947 2948 static s32 brcmf_inform_ibss(struct brcmf_cfg80211_info *cfg, 2949 struct net_device *ndev, const u8 *bssid) 2950 { 2951 struct wiphy *wiphy = cfg_to_wiphy(cfg); 2952 struct ieee80211_channel *notify_channel; 2953 struct brcmf_bss_info_le *bi = NULL; 2954 struct ieee80211_supported_band *band; 2955 struct cfg80211_bss *bss; 2956 struct brcmu_chan ch; 2957 u8 *buf = NULL; 2958 s32 err = 0; 2959 u32 freq; 2960 u16 notify_capability; 2961 u16 notify_interval; 2962 u8 *notify_ie; 2963 size_t notify_ielen; 2964 s32 notify_signal; 2965 2966 brcmf_dbg(TRACE, "Enter\n"); 2967 2968 buf = kzalloc(WL_BSS_INFO_MAX, GFP_KERNEL); 2969 if (buf == NULL) { 2970 err = -ENOMEM; 2971 goto CleanUp; 2972 } 2973 2974 *(__le32 *)buf = cpu_to_le32(WL_BSS_INFO_MAX); 2975 2976 err = brcmf_fil_cmd_data_get(netdev_priv(ndev), BRCMF_C_GET_BSS_INFO, 2977 buf, WL_BSS_INFO_MAX); 2978 if (err) { 2979 brcmf_err("WLC_GET_BSS_INFO failed: %d\n", err); 2980 goto CleanUp; 2981 } 2982 2983 bi = (struct brcmf_bss_info_le *)(buf + 4); 2984 2985 ch.chspec = le16_to_cpu(bi->chanspec); 2986 cfg->d11inf.decchspec(&ch); 2987 2988 if (ch.band == BRCMU_CHAN_BAND_2G) 2989 band = wiphy->bands[NL80211_BAND_2GHZ]; 2990 else 2991 band = wiphy->bands[NL80211_BAND_5GHZ]; 2992 2993 freq = ieee80211_channel_to_frequency(ch.control_ch_num, band->band); 2994 cfg->channel = freq; 2995 notify_channel = ieee80211_get_channel(wiphy, freq); 2996 2997 notify_capability = le16_to_cpu(bi->capability); 2998 notify_interval = le16_to_cpu(bi->beacon_period); 2999 notify_ie = (u8 *)bi + le16_to_cpu(bi->ie_offset); 3000 notify_ielen = le32_to_cpu(bi->ie_length); 3001 notify_signal = (s16)le16_to_cpu(bi->RSSI) * 100; 3002 3003 brcmf_dbg(CONN, "channel: %d(%d)\n", ch.control_ch_num, freq); 3004 brcmf_dbg(CONN, "capability: %X\n", notify_capability); 3005 brcmf_dbg(CONN, "beacon interval: %d\n", notify_interval); 3006 brcmf_dbg(CONN, "signal: %d\n", notify_signal); 3007 3008 bss = cfg80211_inform_bss(wiphy, notify_channel, 3009 CFG80211_BSS_FTYPE_UNKNOWN, bssid, 0, 3010 notify_capability, notify_interval, 3011 notify_ie, notify_ielen, notify_signal, 3012 GFP_KERNEL); 3013 3014 if (!bss) { 3015 err = -ENOMEM; 3016 goto CleanUp; 3017 } 3018 3019 cfg80211_put_bss(wiphy, bss); 3020 3021 CleanUp: 3022 3023 kfree(buf); 3024 3025 brcmf_dbg(TRACE, "Exit\n"); 3026 3027 return err; 3028 } 3029 3030 static s32 brcmf_update_bss_info(struct brcmf_cfg80211_info *cfg, 3031 struct brcmf_if *ifp) 3032 { 3033 struct brcmf_bss_info_le *bi; 3034 const struct brcmf_tlv *tim; 3035 u16 beacon_interval; 3036 u8 dtim_period; 3037 size_t ie_len; 3038 u8 *ie; 3039 s32 err = 0; 3040 3041 brcmf_dbg(TRACE, "Enter\n"); 3042 if (brcmf_is_ibssmode(ifp->vif)) 3043 return err; 3044 3045 *(__le32 *)cfg->extra_buf = cpu_to_le32(WL_EXTRA_BUF_MAX); 3046 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BSS_INFO, 3047 cfg->extra_buf, WL_EXTRA_BUF_MAX); 3048 if (err) { 3049 brcmf_err("Could not get bss info %d\n", err); 3050 goto update_bss_info_out; 3051 } 3052 3053 bi = (struct brcmf_bss_info_le *)(cfg->extra_buf + 4); 3054 err = brcmf_inform_single_bss(cfg, bi); 3055 if (err) 3056 goto update_bss_info_out; 3057 3058 ie = ((u8 *)bi) + le16_to_cpu(bi->ie_offset); 3059 ie_len = le32_to_cpu(bi->ie_length); 3060 beacon_interval = le16_to_cpu(bi->beacon_period); 3061 3062 tim = brcmf_parse_tlvs(ie, ie_len, WLAN_EID_TIM); 3063 if (tim) 3064 dtim_period = tim->data[1]; 3065 else { 3066 /* 3067 * active scan was done so we could not get dtim 3068 * information out of probe response. 3069 * so we speficially query dtim information to dongle. 3070 */ 3071 u32 var; 3072 err = brcmf_fil_iovar_int_get(ifp, "dtim_assoc", &var); 3073 if (err) { 3074 brcmf_err("wl dtim_assoc failed (%d)\n", err); 3075 goto update_bss_info_out; 3076 } 3077 dtim_period = (u8)var; 3078 } 3079 3080 update_bss_info_out: 3081 brcmf_dbg(TRACE, "Exit"); 3082 return err; 3083 } 3084 3085 void brcmf_abort_scanning(struct brcmf_cfg80211_info *cfg) 3086 { 3087 struct escan_info *escan = &cfg->escan_info; 3088 3089 set_bit(BRCMF_SCAN_STATUS_ABORT, &cfg->scan_status); 3090 if (cfg->int_escan_map || cfg->scan_request) { 3091 escan->escan_state = WL_ESCAN_STATE_IDLE; 3092 brcmf_notify_escan_complete(cfg, escan->ifp, true, true); 3093 } 3094 clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status); 3095 clear_bit(BRCMF_SCAN_STATUS_ABORT, &cfg->scan_status); 3096 } 3097 3098 static void brcmf_cfg80211_escan_timeout_worker(struct work_struct *work) 3099 { 3100 struct brcmf_cfg80211_info *cfg = 3101 container_of(work, struct brcmf_cfg80211_info, 3102 escan_timeout_work); 3103 3104 brcmf_inform_bss(cfg); 3105 brcmf_notify_escan_complete(cfg, cfg->escan_info.ifp, true, true); 3106 } 3107 3108 static void brcmf_escan_timeout(unsigned long data) 3109 { 3110 struct brcmf_cfg80211_info *cfg = 3111 (struct brcmf_cfg80211_info *)data; 3112 3113 if (cfg->int_escan_map || cfg->scan_request) { 3114 brcmf_err("timer expired\n"); 3115 schedule_work(&cfg->escan_timeout_work); 3116 } 3117 } 3118 3119 static s32 3120 brcmf_compare_update_same_bss(struct brcmf_cfg80211_info *cfg, 3121 struct brcmf_bss_info_le *bss, 3122 struct brcmf_bss_info_le *bss_info_le) 3123 { 3124 struct brcmu_chan ch_bss, ch_bss_info_le; 3125 3126 ch_bss.chspec = le16_to_cpu(bss->chanspec); 3127 cfg->d11inf.decchspec(&ch_bss); 3128 ch_bss_info_le.chspec = le16_to_cpu(bss_info_le->chanspec); 3129 cfg->d11inf.decchspec(&ch_bss_info_le); 3130 3131 if (!memcmp(&bss_info_le->BSSID, &bss->BSSID, ETH_ALEN) && 3132 ch_bss.band == ch_bss_info_le.band && 3133 bss_info_le->SSID_len == bss->SSID_len && 3134 !memcmp(bss_info_le->SSID, bss->SSID, bss_info_le->SSID_len)) { 3135 if ((bss->flags & BRCMF_BSS_RSSI_ON_CHANNEL) == 3136 (bss_info_le->flags & BRCMF_BSS_RSSI_ON_CHANNEL)) { 3137 s16 bss_rssi = le16_to_cpu(bss->RSSI); 3138 s16 bss_info_rssi = le16_to_cpu(bss_info_le->RSSI); 3139 3140 /* preserve max RSSI if the measurements are 3141 * both on-channel or both off-channel 3142 */ 3143 if (bss_info_rssi > bss_rssi) 3144 bss->RSSI = bss_info_le->RSSI; 3145 } else if ((bss->flags & BRCMF_BSS_RSSI_ON_CHANNEL) && 3146 (bss_info_le->flags & BRCMF_BSS_RSSI_ON_CHANNEL) == 0) { 3147 /* preserve the on-channel rssi measurement 3148 * if the new measurement is off channel 3149 */ 3150 bss->RSSI = bss_info_le->RSSI; 3151 bss->flags |= BRCMF_BSS_RSSI_ON_CHANNEL; 3152 } 3153 return 1; 3154 } 3155 return 0; 3156 } 3157 3158 static s32 3159 brcmf_cfg80211_escan_handler(struct brcmf_if *ifp, 3160 const struct brcmf_event_msg *e, void *data) 3161 { 3162 struct brcmf_cfg80211_info *cfg = ifp->drvr->config; 3163 s32 status; 3164 struct brcmf_escan_result_le *escan_result_le; 3165 struct brcmf_bss_info_le *bss_info_le; 3166 struct brcmf_bss_info_le *bss = NULL; 3167 u32 bi_length; 3168 struct brcmf_scan_results *list; 3169 u32 i; 3170 bool aborted; 3171 3172 status = e->status; 3173 3174 if (status == BRCMF_E_STATUS_ABORT) 3175 goto exit; 3176 3177 if (!test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) { 3178 brcmf_err("scan not ready, bsscfgidx=%d\n", ifp->bsscfgidx); 3179 return -EPERM; 3180 } 3181 3182 if (status == BRCMF_E_STATUS_PARTIAL) { 3183 brcmf_dbg(SCAN, "ESCAN Partial result\n"); 3184 escan_result_le = (struct brcmf_escan_result_le *) data; 3185 if (!escan_result_le) { 3186 brcmf_err("Invalid escan result (NULL pointer)\n"); 3187 goto exit; 3188 } 3189 if (le16_to_cpu(escan_result_le->bss_count) != 1) { 3190 brcmf_err("Invalid bss_count %d: ignoring\n", 3191 escan_result_le->bss_count); 3192 goto exit; 3193 } 3194 bss_info_le = &escan_result_le->bss_info_le; 3195 3196 if (brcmf_p2p_scan_finding_common_channel(cfg, bss_info_le)) 3197 goto exit; 3198 3199 if (!cfg->int_escan_map && !cfg->scan_request) { 3200 brcmf_dbg(SCAN, "result without cfg80211 request\n"); 3201 goto exit; 3202 } 3203 3204 bi_length = le32_to_cpu(bss_info_le->length); 3205 if (bi_length != (le32_to_cpu(escan_result_le->buflen) - 3206 WL_ESCAN_RESULTS_FIXED_SIZE)) { 3207 brcmf_err("Invalid bss_info length %d: ignoring\n", 3208 bi_length); 3209 goto exit; 3210 } 3211 3212 if (!(cfg_to_wiphy(cfg)->interface_modes & 3213 BIT(NL80211_IFTYPE_ADHOC))) { 3214 if (le16_to_cpu(bss_info_le->capability) & 3215 WLAN_CAPABILITY_IBSS) { 3216 brcmf_err("Ignoring IBSS result\n"); 3217 goto exit; 3218 } 3219 } 3220 3221 list = (struct brcmf_scan_results *) 3222 cfg->escan_info.escan_buf; 3223 if (bi_length > BRCMF_ESCAN_BUF_SIZE - list->buflen) { 3224 brcmf_err("Buffer is too small: ignoring\n"); 3225 goto exit; 3226 } 3227 3228 for (i = 0; i < list->count; i++) { 3229 bss = bss ? (struct brcmf_bss_info_le *) 3230 ((unsigned char *)bss + 3231 le32_to_cpu(bss->length)) : list->bss_info_le; 3232 if (brcmf_compare_update_same_bss(cfg, bss, 3233 bss_info_le)) 3234 goto exit; 3235 } 3236 memcpy(&cfg->escan_info.escan_buf[list->buflen], bss_info_le, 3237 bi_length); 3238 list->version = le32_to_cpu(bss_info_le->version); 3239 list->buflen += bi_length; 3240 list->count++; 3241 } else { 3242 cfg->escan_info.escan_state = WL_ESCAN_STATE_IDLE; 3243 if (brcmf_p2p_scan_finding_common_channel(cfg, NULL)) 3244 goto exit; 3245 if (cfg->int_escan_map || cfg->scan_request) { 3246 brcmf_inform_bss(cfg); 3247 aborted = status != BRCMF_E_STATUS_SUCCESS; 3248 brcmf_notify_escan_complete(cfg, ifp, aborted, false); 3249 } else 3250 brcmf_dbg(SCAN, "Ignored scan complete result 0x%x\n", 3251 status); 3252 } 3253 exit: 3254 return 0; 3255 } 3256 3257 static void brcmf_init_escan(struct brcmf_cfg80211_info *cfg) 3258 { 3259 brcmf_fweh_register(cfg->pub, BRCMF_E_ESCAN_RESULT, 3260 brcmf_cfg80211_escan_handler); 3261 cfg->escan_info.escan_state = WL_ESCAN_STATE_IDLE; 3262 /* Init scan_timeout timer */ 3263 init_timer(&cfg->escan_timeout); 3264 cfg->escan_timeout.data = (unsigned long) cfg; 3265 cfg->escan_timeout.function = brcmf_escan_timeout; 3266 INIT_WORK(&cfg->escan_timeout_work, 3267 brcmf_cfg80211_escan_timeout_worker); 3268 } 3269 3270 static struct cfg80211_scan_request * 3271 brcmf_alloc_internal_escan_request(struct wiphy *wiphy, u32 n_netinfo) { 3272 struct cfg80211_scan_request *req; 3273 size_t req_size; 3274 3275 req_size = sizeof(*req) + 3276 n_netinfo * sizeof(req->channels[0]) + 3277 n_netinfo * sizeof(*req->ssids); 3278 3279 req = kzalloc(req_size, GFP_KERNEL); 3280 if (req) { 3281 req->wiphy = wiphy; 3282 req->ssids = (void *)(&req->channels[0]) + 3283 n_netinfo * sizeof(req->channels[0]); 3284 } 3285 return req; 3286 } 3287 3288 static int brcmf_internal_escan_add_info(struct cfg80211_scan_request *req, 3289 u8 *ssid, u8 ssid_len, u8 channel) 3290 { 3291 struct ieee80211_channel *chan; 3292 enum nl80211_band band; 3293 int freq, i; 3294 3295 if (channel <= CH_MAX_2G_CHANNEL) 3296 band = NL80211_BAND_2GHZ; 3297 else 3298 band = NL80211_BAND_5GHZ; 3299 3300 freq = ieee80211_channel_to_frequency(channel, band); 3301 if (!freq) 3302 return -EINVAL; 3303 3304 chan = ieee80211_get_channel(req->wiphy, freq); 3305 if (!chan) 3306 return -EINVAL; 3307 3308 for (i = 0; i < req->n_channels; i++) { 3309 if (req->channels[i] == chan) 3310 break; 3311 } 3312 if (i == req->n_channels) 3313 req->channels[req->n_channels++] = chan; 3314 3315 for (i = 0; i < req->n_ssids; i++) { 3316 if (req->ssids[i].ssid_len == ssid_len && 3317 !memcmp(req->ssids[i].ssid, ssid, ssid_len)) 3318 break; 3319 } 3320 if (i == req->n_ssids) { 3321 memcpy(req->ssids[req->n_ssids].ssid, ssid, ssid_len); 3322 req->ssids[req->n_ssids++].ssid_len = ssid_len; 3323 } 3324 return 0; 3325 } 3326 3327 static int brcmf_start_internal_escan(struct brcmf_if *ifp, u32 fwmap, 3328 struct cfg80211_scan_request *request) 3329 { 3330 struct brcmf_cfg80211_info *cfg = ifp->drvr->config; 3331 int err; 3332 3333 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) { 3334 if (cfg->int_escan_map) 3335 brcmf_dbg(SCAN, "aborting internal scan: map=%u\n", 3336 cfg->int_escan_map); 3337 /* Abort any on-going scan */ 3338 brcmf_abort_scanning(cfg); 3339 } 3340 3341 brcmf_dbg(SCAN, "start internal scan: map=%u\n", fwmap); 3342 set_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status); 3343 cfg->escan_info.run = brcmf_run_escan; 3344 err = brcmf_do_escan(ifp, request); 3345 if (err) { 3346 clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status); 3347 return err; 3348 } 3349 cfg->int_escan_map = fwmap; 3350 return 0; 3351 } 3352 3353 static struct brcmf_pno_net_info_le * 3354 brcmf_get_netinfo_array(struct brcmf_pno_scanresults_le *pfn_v1) 3355 { 3356 struct brcmf_pno_scanresults_v2_le *pfn_v2; 3357 struct brcmf_pno_net_info_le *netinfo; 3358 3359 switch (pfn_v1->version) { 3360 default: 3361 WARN_ON(1); 3362 /* fall-thru */ 3363 case cpu_to_le32(1): 3364 netinfo = (struct brcmf_pno_net_info_le *)(pfn_v1 + 1); 3365 break; 3366 case cpu_to_le32(2): 3367 pfn_v2 = (struct brcmf_pno_scanresults_v2_le *)pfn_v1; 3368 netinfo = (struct brcmf_pno_net_info_le *)(pfn_v2 + 1); 3369 break; 3370 } 3371 3372 return netinfo; 3373 } 3374 3375 /* PFN result doesn't have all the info which are required by the supplicant 3376 * (For e.g IEs) Do a target Escan so that sched scan results are reported 3377 * via wl_inform_single_bss in the required format. Escan does require the 3378 * scan request in the form of cfg80211_scan_request. For timebeing, create 3379 * cfg80211_scan_request one out of the received PNO event. 3380 */ 3381 static s32 3382 brcmf_notify_sched_scan_results(struct brcmf_if *ifp, 3383 const struct brcmf_event_msg *e, void *data) 3384 { 3385 struct brcmf_cfg80211_info *cfg = ifp->drvr->config; 3386 struct brcmf_pno_net_info_le *netinfo, *netinfo_start; 3387 struct cfg80211_scan_request *request = NULL; 3388 struct wiphy *wiphy = cfg_to_wiphy(cfg); 3389 int i, err = 0; 3390 struct brcmf_pno_scanresults_le *pfn_result; 3391 u32 bucket_map; 3392 u32 result_count; 3393 u32 status; 3394 u32 datalen; 3395 3396 brcmf_dbg(SCAN, "Enter\n"); 3397 3398 if (e->datalen < (sizeof(*pfn_result) + sizeof(*netinfo))) { 3399 brcmf_dbg(SCAN, "Event data to small. Ignore\n"); 3400 return 0; 3401 } 3402 3403 if (e->event_code == BRCMF_E_PFN_NET_LOST) { 3404 brcmf_dbg(SCAN, "PFN NET LOST event. Do Nothing\n"); 3405 return 0; 3406 } 3407 3408 pfn_result = (struct brcmf_pno_scanresults_le *)data; 3409 result_count = le32_to_cpu(pfn_result->count); 3410 status = le32_to_cpu(pfn_result->status); 3411 3412 /* PFN event is limited to fit 512 bytes so we may get 3413 * multiple NET_FOUND events. For now place a warning here. 3414 */ 3415 WARN_ON(status != BRCMF_PNO_SCAN_COMPLETE); 3416 brcmf_dbg(SCAN, "PFN NET FOUND event. count: %d\n", result_count); 3417 if (!result_count) { 3418 brcmf_err("FALSE PNO Event. (pfn_count == 0)\n"); 3419 goto out_err; 3420 } 3421 3422 netinfo_start = brcmf_get_netinfo_array(pfn_result); 3423 datalen = e->datalen - ((void *)netinfo_start - (void *)pfn_result); 3424 if (datalen < result_count * sizeof(*netinfo)) { 3425 brcmf_err("insufficient event data\n"); 3426 goto out_err; 3427 } 3428 3429 request = brcmf_alloc_internal_escan_request(wiphy, 3430 result_count); 3431 if (!request) { 3432 err = -ENOMEM; 3433 goto out_err; 3434 } 3435 3436 bucket_map = 0; 3437 for (i = 0; i < result_count; i++) { 3438 netinfo = &netinfo_start[i]; 3439 3440 if (netinfo->SSID_len > IEEE80211_MAX_SSID_LEN) 3441 netinfo->SSID_len = IEEE80211_MAX_SSID_LEN; 3442 brcmf_dbg(SCAN, "SSID:%.32s Channel:%d\n", 3443 netinfo->SSID, netinfo->channel); 3444 bucket_map |= brcmf_pno_get_bucket_map(cfg->pno, netinfo); 3445 err = brcmf_internal_escan_add_info(request, 3446 netinfo->SSID, 3447 netinfo->SSID_len, 3448 netinfo->channel); 3449 if (err) 3450 goto out_err; 3451 } 3452 3453 if (!bucket_map) 3454 goto free_req; 3455 3456 err = brcmf_start_internal_escan(ifp, bucket_map, request); 3457 if (!err) 3458 goto free_req; 3459 3460 out_err: 3461 cfg80211_sched_scan_stopped(wiphy, 0); 3462 free_req: 3463 kfree(request); 3464 return err; 3465 } 3466 3467 static int 3468 brcmf_cfg80211_sched_scan_start(struct wiphy *wiphy, 3469 struct net_device *ndev, 3470 struct cfg80211_sched_scan_request *req) 3471 { 3472 struct brcmf_if *ifp = netdev_priv(ndev); 3473 struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy); 3474 3475 brcmf_dbg(SCAN, "Enter: n_match_sets=%d n_ssids=%d\n", 3476 req->n_match_sets, req->n_ssids); 3477 3478 if (test_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status)) { 3479 brcmf_err("Scanning suppressed: status=%lu\n", 3480 cfg->scan_status); 3481 return -EAGAIN; 3482 } 3483 3484 if (req->n_match_sets <= 0) { 3485 brcmf_dbg(SCAN, "invalid number of matchsets specified: %d\n", 3486 req->n_match_sets); 3487 return -EINVAL; 3488 } 3489 3490 return brcmf_pno_start_sched_scan(ifp, req); 3491 } 3492 3493 static int brcmf_cfg80211_sched_scan_stop(struct wiphy *wiphy, 3494 struct net_device *ndev, u64 reqid) 3495 { 3496 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 3497 struct brcmf_if *ifp = netdev_priv(ndev); 3498 3499 brcmf_dbg(SCAN, "enter\n"); 3500 brcmf_pno_stop_sched_scan(ifp, reqid); 3501 if (cfg->int_escan_map) 3502 brcmf_notify_escan_complete(cfg, ifp, true, true); 3503 return 0; 3504 } 3505 3506 static __always_inline void brcmf_delay(u32 ms) 3507 { 3508 if (ms < 1000 / HZ) { 3509 cond_resched(); 3510 mdelay(ms); 3511 } else { 3512 msleep(ms); 3513 } 3514 } 3515 3516 static s32 brcmf_config_wowl_pattern(struct brcmf_if *ifp, u8 cmd[4], 3517 u8 *pattern, u32 patternsize, u8 *mask, 3518 u32 packet_offset) 3519 { 3520 struct brcmf_fil_wowl_pattern_le *filter; 3521 u32 masksize; 3522 u32 patternoffset; 3523 u8 *buf; 3524 u32 bufsize; 3525 s32 ret; 3526 3527 masksize = (patternsize + 7) / 8; 3528 patternoffset = sizeof(*filter) - sizeof(filter->cmd) + masksize; 3529 3530 bufsize = sizeof(*filter) + patternsize + masksize; 3531 buf = kzalloc(bufsize, GFP_KERNEL); 3532 if (!buf) 3533 return -ENOMEM; 3534 filter = (struct brcmf_fil_wowl_pattern_le *)buf; 3535 3536 memcpy(filter->cmd, cmd, 4); 3537 filter->masksize = cpu_to_le32(masksize); 3538 filter->offset = cpu_to_le32(packet_offset); 3539 filter->patternoffset = cpu_to_le32(patternoffset); 3540 filter->patternsize = cpu_to_le32(patternsize); 3541 filter->type = cpu_to_le32(BRCMF_WOWL_PATTERN_TYPE_BITMAP); 3542 3543 if ((mask) && (masksize)) 3544 memcpy(buf + sizeof(*filter), mask, masksize); 3545 if ((pattern) && (patternsize)) 3546 memcpy(buf + sizeof(*filter) + masksize, pattern, patternsize); 3547 3548 ret = brcmf_fil_iovar_data_set(ifp, "wowl_pattern", buf, bufsize); 3549 3550 kfree(buf); 3551 return ret; 3552 } 3553 3554 static s32 3555 brcmf_wowl_nd_results(struct brcmf_if *ifp, const struct brcmf_event_msg *e, 3556 void *data) 3557 { 3558 struct brcmf_cfg80211_info *cfg = ifp->drvr->config; 3559 struct brcmf_pno_scanresults_le *pfn_result; 3560 struct brcmf_pno_net_info_le *netinfo; 3561 3562 brcmf_dbg(SCAN, "Enter\n"); 3563 3564 if (e->datalen < (sizeof(*pfn_result) + sizeof(*netinfo))) { 3565 brcmf_dbg(SCAN, "Event data to small. Ignore\n"); 3566 return 0; 3567 } 3568 3569 pfn_result = (struct brcmf_pno_scanresults_le *)data; 3570 3571 if (e->event_code == BRCMF_E_PFN_NET_LOST) { 3572 brcmf_dbg(SCAN, "PFN NET LOST event. Ignore\n"); 3573 return 0; 3574 } 3575 3576 if (le32_to_cpu(pfn_result->count) < 1) { 3577 brcmf_err("Invalid result count, expected 1 (%d)\n", 3578 le32_to_cpu(pfn_result->count)); 3579 return -EINVAL; 3580 } 3581 3582 netinfo = brcmf_get_netinfo_array(pfn_result); 3583 memcpy(cfg->wowl.nd->ssid.ssid, netinfo->SSID, netinfo->SSID_len); 3584 cfg->wowl.nd->ssid.ssid_len = netinfo->SSID_len; 3585 cfg->wowl.nd->n_channels = 1; 3586 cfg->wowl.nd->channels[0] = 3587 ieee80211_channel_to_frequency(netinfo->channel, 3588 netinfo->channel <= CH_MAX_2G_CHANNEL ? 3589 NL80211_BAND_2GHZ : NL80211_BAND_5GHZ); 3590 cfg->wowl.nd_info->n_matches = 1; 3591 cfg->wowl.nd_info->matches[0] = cfg->wowl.nd; 3592 3593 /* Inform (the resume task) that the net detect information was recvd */ 3594 cfg->wowl.nd_data_completed = true; 3595 wake_up(&cfg->wowl.nd_data_wait); 3596 3597 return 0; 3598 } 3599 3600 #ifdef CONFIG_PM 3601 3602 static void brcmf_report_wowl_wakeind(struct wiphy *wiphy, struct brcmf_if *ifp) 3603 { 3604 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 3605 struct brcmf_wowl_wakeind_le wake_ind_le; 3606 struct cfg80211_wowlan_wakeup wakeup_data; 3607 struct cfg80211_wowlan_wakeup *wakeup; 3608 u32 wakeind; 3609 s32 err; 3610 int timeout; 3611 3612 err = brcmf_fil_iovar_data_get(ifp, "wowl_wakeind", &wake_ind_le, 3613 sizeof(wake_ind_le)); 3614 if (err) { 3615 brcmf_err("Get wowl_wakeind failed, err = %d\n", err); 3616 return; 3617 } 3618 3619 wakeind = le32_to_cpu(wake_ind_le.ucode_wakeind); 3620 if (wakeind & (BRCMF_WOWL_MAGIC | BRCMF_WOWL_DIS | BRCMF_WOWL_BCN | 3621 BRCMF_WOWL_RETR | BRCMF_WOWL_NET | 3622 BRCMF_WOWL_PFN_FOUND)) { 3623 wakeup = &wakeup_data; 3624 memset(&wakeup_data, 0, sizeof(wakeup_data)); 3625 wakeup_data.pattern_idx = -1; 3626 3627 if (wakeind & BRCMF_WOWL_MAGIC) { 3628 brcmf_dbg(INFO, "WOWL Wake indicator: BRCMF_WOWL_MAGIC\n"); 3629 wakeup_data.magic_pkt = true; 3630 } 3631 if (wakeind & BRCMF_WOWL_DIS) { 3632 brcmf_dbg(INFO, "WOWL Wake indicator: BRCMF_WOWL_DIS\n"); 3633 wakeup_data.disconnect = true; 3634 } 3635 if (wakeind & BRCMF_WOWL_BCN) { 3636 brcmf_dbg(INFO, "WOWL Wake indicator: BRCMF_WOWL_BCN\n"); 3637 wakeup_data.disconnect = true; 3638 } 3639 if (wakeind & BRCMF_WOWL_RETR) { 3640 brcmf_dbg(INFO, "WOWL Wake indicator: BRCMF_WOWL_RETR\n"); 3641 wakeup_data.disconnect = true; 3642 } 3643 if (wakeind & BRCMF_WOWL_NET) { 3644 brcmf_dbg(INFO, "WOWL Wake indicator: BRCMF_WOWL_NET\n"); 3645 /* For now always map to pattern 0, no API to get 3646 * correct information available at the moment. 3647 */ 3648 wakeup_data.pattern_idx = 0; 3649 } 3650 if (wakeind & BRCMF_WOWL_PFN_FOUND) { 3651 brcmf_dbg(INFO, "WOWL Wake indicator: BRCMF_WOWL_PFN_FOUND\n"); 3652 timeout = wait_event_timeout(cfg->wowl.nd_data_wait, 3653 cfg->wowl.nd_data_completed, 3654 BRCMF_ND_INFO_TIMEOUT); 3655 if (!timeout) 3656 brcmf_err("No result for wowl net detect\n"); 3657 else 3658 wakeup_data.net_detect = cfg->wowl.nd_info; 3659 } 3660 if (wakeind & BRCMF_WOWL_GTK_FAILURE) { 3661 brcmf_dbg(INFO, "WOWL Wake indicator: BRCMF_WOWL_GTK_FAILURE\n"); 3662 wakeup_data.gtk_rekey_failure = true; 3663 } 3664 } else { 3665 wakeup = NULL; 3666 } 3667 cfg80211_report_wowlan_wakeup(&ifp->vif->wdev, wakeup, GFP_KERNEL); 3668 } 3669 3670 #else 3671 3672 static void brcmf_report_wowl_wakeind(struct wiphy *wiphy, struct brcmf_if *ifp) 3673 { 3674 } 3675 3676 #endif /* CONFIG_PM */ 3677 3678 static s32 brcmf_cfg80211_resume(struct wiphy *wiphy) 3679 { 3680 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 3681 struct net_device *ndev = cfg_to_ndev(cfg); 3682 struct brcmf_if *ifp = netdev_priv(ndev); 3683 3684 brcmf_dbg(TRACE, "Enter\n"); 3685 3686 if (cfg->wowl.active) { 3687 brcmf_report_wowl_wakeind(wiphy, ifp); 3688 brcmf_fil_iovar_int_set(ifp, "wowl_clear", 0); 3689 brcmf_config_wowl_pattern(ifp, "clr", NULL, 0, NULL, 0); 3690 if (!brcmf_feat_is_enabled(ifp, BRCMF_FEAT_WOWL_ARP_ND)) 3691 brcmf_configure_arp_nd_offload(ifp, true); 3692 brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM, 3693 cfg->wowl.pre_pmmode); 3694 cfg->wowl.active = false; 3695 if (cfg->wowl.nd_enabled) { 3696 brcmf_cfg80211_sched_scan_stop(cfg->wiphy, ifp->ndev, 0); 3697 brcmf_fweh_unregister(cfg->pub, BRCMF_E_PFN_NET_FOUND); 3698 brcmf_fweh_register(cfg->pub, BRCMF_E_PFN_NET_FOUND, 3699 brcmf_notify_sched_scan_results); 3700 cfg->wowl.nd_enabled = false; 3701 } 3702 } 3703 return 0; 3704 } 3705 3706 static void brcmf_configure_wowl(struct brcmf_cfg80211_info *cfg, 3707 struct brcmf_if *ifp, 3708 struct cfg80211_wowlan *wowl) 3709 { 3710 u32 wowl_config; 3711 struct brcmf_wowl_wakeind_le wowl_wakeind; 3712 u32 i; 3713 3714 brcmf_dbg(TRACE, "Suspend, wowl config.\n"); 3715 3716 if (!brcmf_feat_is_enabled(ifp, BRCMF_FEAT_WOWL_ARP_ND)) 3717 brcmf_configure_arp_nd_offload(ifp, false); 3718 brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_PM, &cfg->wowl.pre_pmmode); 3719 brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM, PM_MAX); 3720 3721 wowl_config = 0; 3722 if (wowl->disconnect) 3723 wowl_config = BRCMF_WOWL_DIS | BRCMF_WOWL_BCN | BRCMF_WOWL_RETR; 3724 if (wowl->magic_pkt) 3725 wowl_config |= BRCMF_WOWL_MAGIC; 3726 if ((wowl->patterns) && (wowl->n_patterns)) { 3727 wowl_config |= BRCMF_WOWL_NET; 3728 for (i = 0; i < wowl->n_patterns; i++) { 3729 brcmf_config_wowl_pattern(ifp, "add", 3730 (u8 *)wowl->patterns[i].pattern, 3731 wowl->patterns[i].pattern_len, 3732 (u8 *)wowl->patterns[i].mask, 3733 wowl->patterns[i].pkt_offset); 3734 } 3735 } 3736 if (wowl->nd_config) { 3737 brcmf_cfg80211_sched_scan_start(cfg->wiphy, ifp->ndev, 3738 wowl->nd_config); 3739 wowl_config |= BRCMF_WOWL_PFN_FOUND; 3740 3741 cfg->wowl.nd_data_completed = false; 3742 cfg->wowl.nd_enabled = true; 3743 /* Now reroute the event for PFN to the wowl function. */ 3744 brcmf_fweh_unregister(cfg->pub, BRCMF_E_PFN_NET_FOUND); 3745 brcmf_fweh_register(cfg->pub, BRCMF_E_PFN_NET_FOUND, 3746 brcmf_wowl_nd_results); 3747 } 3748 if (wowl->gtk_rekey_failure) 3749 wowl_config |= BRCMF_WOWL_GTK_FAILURE; 3750 if (!test_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state)) 3751 wowl_config |= BRCMF_WOWL_UNASSOC; 3752 3753 memcpy(&wowl_wakeind, "clear", 6); 3754 brcmf_fil_iovar_data_set(ifp, "wowl_wakeind", &wowl_wakeind, 3755 sizeof(wowl_wakeind)); 3756 brcmf_fil_iovar_int_set(ifp, "wowl", wowl_config); 3757 brcmf_fil_iovar_int_set(ifp, "wowl_activate", 1); 3758 brcmf_bus_wowl_config(cfg->pub->bus_if, true); 3759 cfg->wowl.active = true; 3760 } 3761 3762 static s32 brcmf_cfg80211_suspend(struct wiphy *wiphy, 3763 struct cfg80211_wowlan *wowl) 3764 { 3765 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 3766 struct net_device *ndev = cfg_to_ndev(cfg); 3767 struct brcmf_if *ifp = netdev_priv(ndev); 3768 struct brcmf_cfg80211_vif *vif; 3769 3770 brcmf_dbg(TRACE, "Enter\n"); 3771 3772 /* if the primary net_device is not READY there is nothing 3773 * we can do but pray resume goes smoothly. 3774 */ 3775 if (!check_vif_up(ifp->vif)) 3776 goto exit; 3777 3778 /* Stop scheduled scan */ 3779 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_PNO)) 3780 brcmf_cfg80211_sched_scan_stop(wiphy, ndev, 0); 3781 3782 /* end any scanning */ 3783 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) 3784 brcmf_abort_scanning(cfg); 3785 3786 if (wowl == NULL) { 3787 brcmf_bus_wowl_config(cfg->pub->bus_if, false); 3788 list_for_each_entry(vif, &cfg->vif_list, list) { 3789 if (!test_bit(BRCMF_VIF_STATUS_READY, &vif->sme_state)) 3790 continue; 3791 /* While going to suspend if associated with AP 3792 * disassociate from AP to save power while system is 3793 * in suspended state 3794 */ 3795 brcmf_link_down(vif, WLAN_REASON_UNSPECIFIED); 3796 /* Make sure WPA_Supplicant receives all the event 3797 * generated due to DISASSOC call to the fw to keep 3798 * the state fw and WPA_Supplicant state consistent 3799 */ 3800 brcmf_delay(500); 3801 } 3802 /* Configure MPC */ 3803 brcmf_set_mpc(ifp, 1); 3804 3805 } else { 3806 /* Configure WOWL paramaters */ 3807 brcmf_configure_wowl(cfg, ifp, wowl); 3808 } 3809 3810 exit: 3811 brcmf_dbg(TRACE, "Exit\n"); 3812 /* clear any scanning activity */ 3813 cfg->scan_status = 0; 3814 return 0; 3815 } 3816 3817 static __used s32 3818 brcmf_update_pmklist(struct brcmf_cfg80211_info *cfg, struct brcmf_if *ifp) 3819 { 3820 struct brcmf_pmk_list_le *pmk_list; 3821 int i; 3822 u32 npmk; 3823 s32 err; 3824 3825 pmk_list = &cfg->pmk_list; 3826 npmk = le32_to_cpu(pmk_list->npmk); 3827 3828 brcmf_dbg(CONN, "No of elements %d\n", npmk); 3829 for (i = 0; i < npmk; i++) 3830 brcmf_dbg(CONN, "PMK[%d]: %pM\n", i, &pmk_list->pmk[i].bssid); 3831 3832 err = brcmf_fil_iovar_data_set(ifp, "pmkid_info", pmk_list, 3833 sizeof(*pmk_list)); 3834 3835 return err; 3836 } 3837 3838 static s32 3839 brcmf_cfg80211_set_pmksa(struct wiphy *wiphy, struct net_device *ndev, 3840 struct cfg80211_pmksa *pmksa) 3841 { 3842 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 3843 struct brcmf_if *ifp = netdev_priv(ndev); 3844 struct brcmf_pmksa *pmk = &cfg->pmk_list.pmk[0]; 3845 s32 err; 3846 u32 npmk, i; 3847 3848 brcmf_dbg(TRACE, "Enter\n"); 3849 if (!check_vif_up(ifp->vif)) 3850 return -EIO; 3851 3852 npmk = le32_to_cpu(cfg->pmk_list.npmk); 3853 for (i = 0; i < npmk; i++) 3854 if (!memcmp(pmksa->bssid, pmk[i].bssid, ETH_ALEN)) 3855 break; 3856 if (i < BRCMF_MAXPMKID) { 3857 memcpy(pmk[i].bssid, pmksa->bssid, ETH_ALEN); 3858 memcpy(pmk[i].pmkid, pmksa->pmkid, WLAN_PMKID_LEN); 3859 if (i == npmk) { 3860 npmk++; 3861 cfg->pmk_list.npmk = cpu_to_le32(npmk); 3862 } 3863 } else { 3864 brcmf_err("Too many PMKSA entries cached %d\n", npmk); 3865 return -EINVAL; 3866 } 3867 3868 brcmf_dbg(CONN, "set_pmksa - PMK bssid: %pM =\n", pmk[npmk].bssid); 3869 for (i = 0; i < WLAN_PMKID_LEN; i += 4) 3870 brcmf_dbg(CONN, "%02x %02x %02x %02x\n", pmk[npmk].pmkid[i], 3871 pmk[npmk].pmkid[i + 1], pmk[npmk].pmkid[i + 2], 3872 pmk[npmk].pmkid[i + 3]); 3873 3874 err = brcmf_update_pmklist(cfg, ifp); 3875 3876 brcmf_dbg(TRACE, "Exit\n"); 3877 return err; 3878 } 3879 3880 static s32 3881 brcmf_cfg80211_del_pmksa(struct wiphy *wiphy, struct net_device *ndev, 3882 struct cfg80211_pmksa *pmksa) 3883 { 3884 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 3885 struct brcmf_if *ifp = netdev_priv(ndev); 3886 struct brcmf_pmksa *pmk = &cfg->pmk_list.pmk[0]; 3887 s32 err; 3888 u32 npmk, i; 3889 3890 brcmf_dbg(TRACE, "Enter\n"); 3891 if (!check_vif_up(ifp->vif)) 3892 return -EIO; 3893 3894 brcmf_dbg(CONN, "del_pmksa - PMK bssid = %pM\n", pmksa->bssid); 3895 3896 npmk = le32_to_cpu(cfg->pmk_list.npmk); 3897 for (i = 0; i < npmk; i++) 3898 if (!memcmp(pmksa->bssid, pmk[i].bssid, ETH_ALEN)) 3899 break; 3900 3901 if ((npmk > 0) && (i < npmk)) { 3902 for (; i < (npmk - 1); i++) { 3903 memcpy(&pmk[i].bssid, &pmk[i + 1].bssid, ETH_ALEN); 3904 memcpy(&pmk[i].pmkid, &pmk[i + 1].pmkid, 3905 WLAN_PMKID_LEN); 3906 } 3907 memset(&pmk[i], 0, sizeof(*pmk)); 3908 cfg->pmk_list.npmk = cpu_to_le32(npmk - 1); 3909 } else { 3910 brcmf_err("Cache entry not found\n"); 3911 return -EINVAL; 3912 } 3913 3914 err = brcmf_update_pmklist(cfg, ifp); 3915 3916 brcmf_dbg(TRACE, "Exit\n"); 3917 return err; 3918 3919 } 3920 3921 static s32 3922 brcmf_cfg80211_flush_pmksa(struct wiphy *wiphy, struct net_device *ndev) 3923 { 3924 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 3925 struct brcmf_if *ifp = netdev_priv(ndev); 3926 s32 err; 3927 3928 brcmf_dbg(TRACE, "Enter\n"); 3929 if (!check_vif_up(ifp->vif)) 3930 return -EIO; 3931 3932 memset(&cfg->pmk_list, 0, sizeof(cfg->pmk_list)); 3933 err = brcmf_update_pmklist(cfg, ifp); 3934 3935 brcmf_dbg(TRACE, "Exit\n"); 3936 return err; 3937 3938 } 3939 3940 static s32 brcmf_configure_opensecurity(struct brcmf_if *ifp) 3941 { 3942 s32 err; 3943 s32 wpa_val; 3944 3945 /* set auth */ 3946 err = brcmf_fil_bsscfg_int_set(ifp, "auth", 0); 3947 if (err < 0) { 3948 brcmf_err("auth error %d\n", err); 3949 return err; 3950 } 3951 /* set wsec */ 3952 err = brcmf_fil_bsscfg_int_set(ifp, "wsec", 0); 3953 if (err < 0) { 3954 brcmf_err("wsec error %d\n", err); 3955 return err; 3956 } 3957 /* set upper-layer auth */ 3958 if (brcmf_is_ibssmode(ifp->vif)) 3959 wpa_val = WPA_AUTH_NONE; 3960 else 3961 wpa_val = WPA_AUTH_DISABLED; 3962 err = brcmf_fil_bsscfg_int_set(ifp, "wpa_auth", wpa_val); 3963 if (err < 0) { 3964 brcmf_err("wpa_auth error %d\n", err); 3965 return err; 3966 } 3967 3968 return 0; 3969 } 3970 3971 static bool brcmf_valid_wpa_oui(u8 *oui, bool is_rsn_ie) 3972 { 3973 if (is_rsn_ie) 3974 return (memcmp(oui, RSN_OUI, TLV_OUI_LEN) == 0); 3975 3976 return (memcmp(oui, WPA_OUI, TLV_OUI_LEN) == 0); 3977 } 3978 3979 static s32 3980 brcmf_configure_wpaie(struct brcmf_if *ifp, 3981 const struct brcmf_vs_tlv *wpa_ie, 3982 bool is_rsn_ie) 3983 { 3984 u32 auth = 0; /* d11 open authentication */ 3985 u16 count; 3986 s32 err = 0; 3987 s32 len; 3988 u32 i; 3989 u32 wsec; 3990 u32 pval = 0; 3991 u32 gval = 0; 3992 u32 wpa_auth = 0; 3993 u32 offset; 3994 u8 *data; 3995 u16 rsn_cap; 3996 u32 wme_bss_disable; 3997 u32 mfp; 3998 3999 brcmf_dbg(TRACE, "Enter\n"); 4000 if (wpa_ie == NULL) 4001 goto exit; 4002 4003 len = wpa_ie->len + TLV_HDR_LEN; 4004 data = (u8 *)wpa_ie; 4005 offset = TLV_HDR_LEN; 4006 if (!is_rsn_ie) 4007 offset += VS_IE_FIXED_HDR_LEN; 4008 else 4009 offset += WPA_IE_VERSION_LEN; 4010 4011 /* check for multicast cipher suite */ 4012 if (offset + WPA_IE_MIN_OUI_LEN > len) { 4013 err = -EINVAL; 4014 brcmf_err("no multicast cipher suite\n"); 4015 goto exit; 4016 } 4017 4018 if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) { 4019 err = -EINVAL; 4020 brcmf_err("ivalid OUI\n"); 4021 goto exit; 4022 } 4023 offset += TLV_OUI_LEN; 4024 4025 /* pick up multicast cipher */ 4026 switch (data[offset]) { 4027 case WPA_CIPHER_NONE: 4028 gval = 0; 4029 break; 4030 case WPA_CIPHER_WEP_40: 4031 case WPA_CIPHER_WEP_104: 4032 gval = WEP_ENABLED; 4033 break; 4034 case WPA_CIPHER_TKIP: 4035 gval = TKIP_ENABLED; 4036 break; 4037 case WPA_CIPHER_AES_CCM: 4038 gval = AES_ENABLED; 4039 break; 4040 default: 4041 err = -EINVAL; 4042 brcmf_err("Invalid multi cast cipher info\n"); 4043 goto exit; 4044 } 4045 4046 offset++; 4047 /* walk thru unicast cipher list and pick up what we recognize */ 4048 count = data[offset] + (data[offset + 1] << 8); 4049 offset += WPA_IE_SUITE_COUNT_LEN; 4050 /* Check for unicast suite(s) */ 4051 if (offset + (WPA_IE_MIN_OUI_LEN * count) > len) { 4052 err = -EINVAL; 4053 brcmf_err("no unicast cipher suite\n"); 4054 goto exit; 4055 } 4056 for (i = 0; i < count; i++) { 4057 if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) { 4058 err = -EINVAL; 4059 brcmf_err("ivalid OUI\n"); 4060 goto exit; 4061 } 4062 offset += TLV_OUI_LEN; 4063 switch (data[offset]) { 4064 case WPA_CIPHER_NONE: 4065 break; 4066 case WPA_CIPHER_WEP_40: 4067 case WPA_CIPHER_WEP_104: 4068 pval |= WEP_ENABLED; 4069 break; 4070 case WPA_CIPHER_TKIP: 4071 pval |= TKIP_ENABLED; 4072 break; 4073 case WPA_CIPHER_AES_CCM: 4074 pval |= AES_ENABLED; 4075 break; 4076 default: 4077 brcmf_err("Invalid unicast security info\n"); 4078 } 4079 offset++; 4080 } 4081 /* walk thru auth management suite list and pick up what we recognize */ 4082 count = data[offset] + (data[offset + 1] << 8); 4083 offset += WPA_IE_SUITE_COUNT_LEN; 4084 /* Check for auth key management suite(s) */ 4085 if (offset + (WPA_IE_MIN_OUI_LEN * count) > len) { 4086 err = -EINVAL; 4087 brcmf_err("no auth key mgmt suite\n"); 4088 goto exit; 4089 } 4090 for (i = 0; i < count; i++) { 4091 if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) { 4092 err = -EINVAL; 4093 brcmf_err("ivalid OUI\n"); 4094 goto exit; 4095 } 4096 offset += TLV_OUI_LEN; 4097 switch (data[offset]) { 4098 case RSN_AKM_NONE: 4099 brcmf_dbg(TRACE, "RSN_AKM_NONE\n"); 4100 wpa_auth |= WPA_AUTH_NONE; 4101 break; 4102 case RSN_AKM_UNSPECIFIED: 4103 brcmf_dbg(TRACE, "RSN_AKM_UNSPECIFIED\n"); 4104 is_rsn_ie ? (wpa_auth |= WPA2_AUTH_UNSPECIFIED) : 4105 (wpa_auth |= WPA_AUTH_UNSPECIFIED); 4106 break; 4107 case RSN_AKM_PSK: 4108 brcmf_dbg(TRACE, "RSN_AKM_PSK\n"); 4109 is_rsn_ie ? (wpa_auth |= WPA2_AUTH_PSK) : 4110 (wpa_auth |= WPA_AUTH_PSK); 4111 break; 4112 case RSN_AKM_SHA256_PSK: 4113 brcmf_dbg(TRACE, "RSN_AKM_MFP_PSK\n"); 4114 wpa_auth |= WPA2_AUTH_PSK_SHA256; 4115 break; 4116 case RSN_AKM_SHA256_1X: 4117 brcmf_dbg(TRACE, "RSN_AKM_MFP_1X\n"); 4118 wpa_auth |= WPA2_AUTH_1X_SHA256; 4119 break; 4120 default: 4121 brcmf_err("Invalid key mgmt info\n"); 4122 } 4123 offset++; 4124 } 4125 4126 mfp = BRCMF_MFP_NONE; 4127 if (is_rsn_ie) { 4128 wme_bss_disable = 1; 4129 if ((offset + RSN_CAP_LEN) <= len) { 4130 rsn_cap = data[offset] + (data[offset + 1] << 8); 4131 if (rsn_cap & RSN_CAP_PTK_REPLAY_CNTR_MASK) 4132 wme_bss_disable = 0; 4133 if (rsn_cap & RSN_CAP_MFPR_MASK) { 4134 brcmf_dbg(TRACE, "MFP Required\n"); 4135 mfp = BRCMF_MFP_REQUIRED; 4136 /* Firmware only supports mfp required in 4137 * combination with WPA2_AUTH_PSK_SHA256 or 4138 * WPA2_AUTH_1X_SHA256. 4139 */ 4140 if (!(wpa_auth & (WPA2_AUTH_PSK_SHA256 | 4141 WPA2_AUTH_1X_SHA256))) { 4142 err = -EINVAL; 4143 goto exit; 4144 } 4145 /* Firmware has requirement that WPA2_AUTH_PSK/ 4146 * WPA2_AUTH_UNSPECIFIED be set, if SHA256 OUI 4147 * is to be included in the rsn ie. 4148 */ 4149 if (wpa_auth & WPA2_AUTH_PSK_SHA256) 4150 wpa_auth |= WPA2_AUTH_PSK; 4151 else if (wpa_auth & WPA2_AUTH_1X_SHA256) 4152 wpa_auth |= WPA2_AUTH_UNSPECIFIED; 4153 } else if (rsn_cap & RSN_CAP_MFPC_MASK) { 4154 brcmf_dbg(TRACE, "MFP Capable\n"); 4155 mfp = BRCMF_MFP_CAPABLE; 4156 } 4157 } 4158 offset += RSN_CAP_LEN; 4159 /* set wme_bss_disable to sync RSN Capabilities */ 4160 err = brcmf_fil_bsscfg_int_set(ifp, "wme_bss_disable", 4161 wme_bss_disable); 4162 if (err < 0) { 4163 brcmf_err("wme_bss_disable error %d\n", err); 4164 goto exit; 4165 } 4166 4167 /* Skip PMKID cnt as it is know to be 0 for AP. */ 4168 offset += RSN_PMKID_COUNT_LEN; 4169 4170 /* See if there is BIP wpa suite left for MFP */ 4171 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MFP) && 4172 ((offset + WPA_IE_MIN_OUI_LEN) <= len)) { 4173 err = brcmf_fil_bsscfg_data_set(ifp, "bip", 4174 &data[offset], 4175 WPA_IE_MIN_OUI_LEN); 4176 if (err < 0) { 4177 brcmf_err("bip error %d\n", err); 4178 goto exit; 4179 } 4180 } 4181 } 4182 /* FOR WPS , set SES_OW_ENABLED */ 4183 wsec = (pval | gval | SES_OW_ENABLED); 4184 4185 /* set auth */ 4186 err = brcmf_fil_bsscfg_int_set(ifp, "auth", auth); 4187 if (err < 0) { 4188 brcmf_err("auth error %d\n", err); 4189 goto exit; 4190 } 4191 /* set wsec */ 4192 err = brcmf_fil_bsscfg_int_set(ifp, "wsec", wsec); 4193 if (err < 0) { 4194 brcmf_err("wsec error %d\n", err); 4195 goto exit; 4196 } 4197 /* Configure MFP, this needs to go after wsec otherwise the wsec command 4198 * will overwrite the values set by MFP 4199 */ 4200 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MFP)) { 4201 err = brcmf_fil_bsscfg_int_set(ifp, "mfp", mfp); 4202 if (err < 0) { 4203 brcmf_err("mfp error %d\n", err); 4204 goto exit; 4205 } 4206 } 4207 /* set upper-layer auth */ 4208 err = brcmf_fil_bsscfg_int_set(ifp, "wpa_auth", wpa_auth); 4209 if (err < 0) { 4210 brcmf_err("wpa_auth error %d\n", err); 4211 goto exit; 4212 } 4213 4214 exit: 4215 return err; 4216 } 4217 4218 static s32 4219 brcmf_parse_vndr_ies(const u8 *vndr_ie_buf, u32 vndr_ie_len, 4220 struct parsed_vndr_ies *vndr_ies) 4221 { 4222 struct brcmf_vs_tlv *vndrie; 4223 struct brcmf_tlv *ie; 4224 struct parsed_vndr_ie_info *parsed_info; 4225 s32 remaining_len; 4226 4227 remaining_len = (s32)vndr_ie_len; 4228 memset(vndr_ies, 0, sizeof(*vndr_ies)); 4229 4230 ie = (struct brcmf_tlv *)vndr_ie_buf; 4231 while (ie) { 4232 if (ie->id != WLAN_EID_VENDOR_SPECIFIC) 4233 goto next; 4234 vndrie = (struct brcmf_vs_tlv *)ie; 4235 /* len should be bigger than OUI length + one */ 4236 if (vndrie->len < (VS_IE_FIXED_HDR_LEN - TLV_HDR_LEN + 1)) { 4237 brcmf_err("invalid vndr ie. length is too small %d\n", 4238 vndrie->len); 4239 goto next; 4240 } 4241 /* if wpa or wme ie, do not add ie */ 4242 if (!memcmp(vndrie->oui, (u8 *)WPA_OUI, TLV_OUI_LEN) && 4243 ((vndrie->oui_type == WPA_OUI_TYPE) || 4244 (vndrie->oui_type == WME_OUI_TYPE))) { 4245 brcmf_dbg(TRACE, "Found WPA/WME oui. Do not add it\n"); 4246 goto next; 4247 } 4248 4249 parsed_info = &vndr_ies->ie_info[vndr_ies->count]; 4250 4251 /* save vndr ie information */ 4252 parsed_info->ie_ptr = (char *)vndrie; 4253 parsed_info->ie_len = vndrie->len + TLV_HDR_LEN; 4254 memcpy(&parsed_info->vndrie, vndrie, sizeof(*vndrie)); 4255 4256 vndr_ies->count++; 4257 4258 brcmf_dbg(TRACE, "** OUI %02x %02x %02x, type 0x%02x\n", 4259 parsed_info->vndrie.oui[0], 4260 parsed_info->vndrie.oui[1], 4261 parsed_info->vndrie.oui[2], 4262 parsed_info->vndrie.oui_type); 4263 4264 if (vndr_ies->count >= VNDR_IE_PARSE_LIMIT) 4265 break; 4266 next: 4267 remaining_len -= (ie->len + TLV_HDR_LEN); 4268 if (remaining_len <= TLV_HDR_LEN) 4269 ie = NULL; 4270 else 4271 ie = (struct brcmf_tlv *)(((u8 *)ie) + ie->len + 4272 TLV_HDR_LEN); 4273 } 4274 return 0; 4275 } 4276 4277 static u32 4278 brcmf_vndr_ie(u8 *iebuf, s32 pktflag, u8 *ie_ptr, u32 ie_len, s8 *add_del_cmd) 4279 { 4280 4281 strncpy(iebuf, add_del_cmd, VNDR_IE_CMD_LEN - 1); 4282 iebuf[VNDR_IE_CMD_LEN - 1] = '\0'; 4283 4284 put_unaligned_le32(1, &iebuf[VNDR_IE_COUNT_OFFSET]); 4285 4286 put_unaligned_le32(pktflag, &iebuf[VNDR_IE_PKTFLAG_OFFSET]); 4287 4288 memcpy(&iebuf[VNDR_IE_VSIE_OFFSET], ie_ptr, ie_len); 4289 4290 return ie_len + VNDR_IE_HDR_SIZE; 4291 } 4292 4293 s32 brcmf_vif_set_mgmt_ie(struct brcmf_cfg80211_vif *vif, s32 pktflag, 4294 const u8 *vndr_ie_buf, u32 vndr_ie_len) 4295 { 4296 struct brcmf_if *ifp; 4297 struct vif_saved_ie *saved_ie; 4298 s32 err = 0; 4299 u8 *iovar_ie_buf; 4300 u8 *curr_ie_buf; 4301 u8 *mgmt_ie_buf = NULL; 4302 int mgmt_ie_buf_len; 4303 u32 *mgmt_ie_len; 4304 u32 del_add_ie_buf_len = 0; 4305 u32 total_ie_buf_len = 0; 4306 u32 parsed_ie_buf_len = 0; 4307 struct parsed_vndr_ies old_vndr_ies; 4308 struct parsed_vndr_ies new_vndr_ies; 4309 struct parsed_vndr_ie_info *vndrie_info; 4310 s32 i; 4311 u8 *ptr; 4312 int remained_buf_len; 4313 4314 if (!vif) 4315 return -ENODEV; 4316 ifp = vif->ifp; 4317 saved_ie = &vif->saved_ie; 4318 4319 brcmf_dbg(TRACE, "bsscfgidx %d, pktflag : 0x%02X\n", ifp->bsscfgidx, 4320 pktflag); 4321 iovar_ie_buf = kzalloc(WL_EXTRA_BUF_MAX, GFP_KERNEL); 4322 if (!iovar_ie_buf) 4323 return -ENOMEM; 4324 curr_ie_buf = iovar_ie_buf; 4325 switch (pktflag) { 4326 case BRCMF_VNDR_IE_PRBREQ_FLAG: 4327 mgmt_ie_buf = saved_ie->probe_req_ie; 4328 mgmt_ie_len = &saved_ie->probe_req_ie_len; 4329 mgmt_ie_buf_len = sizeof(saved_ie->probe_req_ie); 4330 break; 4331 case BRCMF_VNDR_IE_PRBRSP_FLAG: 4332 mgmt_ie_buf = saved_ie->probe_res_ie; 4333 mgmt_ie_len = &saved_ie->probe_res_ie_len; 4334 mgmt_ie_buf_len = sizeof(saved_ie->probe_res_ie); 4335 break; 4336 case BRCMF_VNDR_IE_BEACON_FLAG: 4337 mgmt_ie_buf = saved_ie->beacon_ie; 4338 mgmt_ie_len = &saved_ie->beacon_ie_len; 4339 mgmt_ie_buf_len = sizeof(saved_ie->beacon_ie); 4340 break; 4341 case BRCMF_VNDR_IE_ASSOCREQ_FLAG: 4342 mgmt_ie_buf = saved_ie->assoc_req_ie; 4343 mgmt_ie_len = &saved_ie->assoc_req_ie_len; 4344 mgmt_ie_buf_len = sizeof(saved_ie->assoc_req_ie); 4345 break; 4346 default: 4347 err = -EPERM; 4348 brcmf_err("not suitable type\n"); 4349 goto exit; 4350 } 4351 4352 if (vndr_ie_len > mgmt_ie_buf_len) { 4353 err = -ENOMEM; 4354 brcmf_err("extra IE size too big\n"); 4355 goto exit; 4356 } 4357 4358 /* parse and save new vndr_ie in curr_ie_buff before comparing it */ 4359 if (vndr_ie_buf && vndr_ie_len && curr_ie_buf) { 4360 ptr = curr_ie_buf; 4361 brcmf_parse_vndr_ies(vndr_ie_buf, vndr_ie_len, &new_vndr_ies); 4362 for (i = 0; i < new_vndr_ies.count; i++) { 4363 vndrie_info = &new_vndr_ies.ie_info[i]; 4364 memcpy(ptr + parsed_ie_buf_len, vndrie_info->ie_ptr, 4365 vndrie_info->ie_len); 4366 parsed_ie_buf_len += vndrie_info->ie_len; 4367 } 4368 } 4369 4370 if (mgmt_ie_buf && *mgmt_ie_len) { 4371 if (parsed_ie_buf_len && (parsed_ie_buf_len == *mgmt_ie_len) && 4372 (memcmp(mgmt_ie_buf, curr_ie_buf, 4373 parsed_ie_buf_len) == 0)) { 4374 brcmf_dbg(TRACE, "Previous mgmt IE equals to current IE\n"); 4375 goto exit; 4376 } 4377 4378 /* parse old vndr_ie */ 4379 brcmf_parse_vndr_ies(mgmt_ie_buf, *mgmt_ie_len, &old_vndr_ies); 4380 4381 /* make a command to delete old ie */ 4382 for (i = 0; i < old_vndr_ies.count; i++) { 4383 vndrie_info = &old_vndr_ies.ie_info[i]; 4384 4385 brcmf_dbg(TRACE, "DEL ID : %d, Len: %d , OUI:%02x:%02x:%02x\n", 4386 vndrie_info->vndrie.id, 4387 vndrie_info->vndrie.len, 4388 vndrie_info->vndrie.oui[0], 4389 vndrie_info->vndrie.oui[1], 4390 vndrie_info->vndrie.oui[2]); 4391 4392 del_add_ie_buf_len = brcmf_vndr_ie(curr_ie_buf, pktflag, 4393 vndrie_info->ie_ptr, 4394 vndrie_info->ie_len, 4395 "del"); 4396 curr_ie_buf += del_add_ie_buf_len; 4397 total_ie_buf_len += del_add_ie_buf_len; 4398 } 4399 } 4400 4401 *mgmt_ie_len = 0; 4402 /* Add if there is any extra IE */ 4403 if (mgmt_ie_buf && parsed_ie_buf_len) { 4404 ptr = mgmt_ie_buf; 4405 4406 remained_buf_len = mgmt_ie_buf_len; 4407 4408 /* make a command to add new ie */ 4409 for (i = 0; i < new_vndr_ies.count; i++) { 4410 vndrie_info = &new_vndr_ies.ie_info[i]; 4411 4412 /* verify remained buf size before copy data */ 4413 if (remained_buf_len < (vndrie_info->vndrie.len + 4414 VNDR_IE_VSIE_OFFSET)) { 4415 brcmf_err("no space in mgmt_ie_buf: len left %d", 4416 remained_buf_len); 4417 break; 4418 } 4419 remained_buf_len -= (vndrie_info->ie_len + 4420 VNDR_IE_VSIE_OFFSET); 4421 4422 brcmf_dbg(TRACE, "ADDED ID : %d, Len: %d, OUI:%02x:%02x:%02x\n", 4423 vndrie_info->vndrie.id, 4424 vndrie_info->vndrie.len, 4425 vndrie_info->vndrie.oui[0], 4426 vndrie_info->vndrie.oui[1], 4427 vndrie_info->vndrie.oui[2]); 4428 4429 del_add_ie_buf_len = brcmf_vndr_ie(curr_ie_buf, pktflag, 4430 vndrie_info->ie_ptr, 4431 vndrie_info->ie_len, 4432 "add"); 4433 4434 /* save the parsed IE in wl struct */ 4435 memcpy(ptr + (*mgmt_ie_len), vndrie_info->ie_ptr, 4436 vndrie_info->ie_len); 4437 *mgmt_ie_len += vndrie_info->ie_len; 4438 4439 curr_ie_buf += del_add_ie_buf_len; 4440 total_ie_buf_len += del_add_ie_buf_len; 4441 } 4442 } 4443 if (total_ie_buf_len) { 4444 err = brcmf_fil_bsscfg_data_set(ifp, "vndr_ie", iovar_ie_buf, 4445 total_ie_buf_len); 4446 if (err) 4447 brcmf_err("vndr ie set error : %d\n", err); 4448 } 4449 4450 exit: 4451 kfree(iovar_ie_buf); 4452 return err; 4453 } 4454 4455 s32 brcmf_vif_clear_mgmt_ies(struct brcmf_cfg80211_vif *vif) 4456 { 4457 s32 pktflags[] = { 4458 BRCMF_VNDR_IE_PRBREQ_FLAG, 4459 BRCMF_VNDR_IE_PRBRSP_FLAG, 4460 BRCMF_VNDR_IE_BEACON_FLAG 4461 }; 4462 int i; 4463 4464 for (i = 0; i < ARRAY_SIZE(pktflags); i++) 4465 brcmf_vif_set_mgmt_ie(vif, pktflags[i], NULL, 0); 4466 4467 memset(&vif->saved_ie, 0, sizeof(vif->saved_ie)); 4468 return 0; 4469 } 4470 4471 static s32 4472 brcmf_config_ap_mgmt_ie(struct brcmf_cfg80211_vif *vif, 4473 struct cfg80211_beacon_data *beacon) 4474 { 4475 s32 err; 4476 4477 /* Set Beacon IEs to FW */ 4478 err = brcmf_vif_set_mgmt_ie(vif, BRCMF_VNDR_IE_BEACON_FLAG, 4479 beacon->tail, beacon->tail_len); 4480 if (err) { 4481 brcmf_err("Set Beacon IE Failed\n"); 4482 return err; 4483 } 4484 brcmf_dbg(TRACE, "Applied Vndr IEs for Beacon\n"); 4485 4486 /* Set Probe Response IEs to FW */ 4487 err = brcmf_vif_set_mgmt_ie(vif, BRCMF_VNDR_IE_PRBRSP_FLAG, 4488 beacon->proberesp_ies, 4489 beacon->proberesp_ies_len); 4490 if (err) 4491 brcmf_err("Set Probe Resp IE Failed\n"); 4492 else 4493 brcmf_dbg(TRACE, "Applied Vndr IEs for Probe Resp\n"); 4494 4495 return err; 4496 } 4497 4498 static s32 4499 brcmf_cfg80211_start_ap(struct wiphy *wiphy, struct net_device *ndev, 4500 struct cfg80211_ap_settings *settings) 4501 { 4502 s32 ie_offset; 4503 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 4504 struct brcmf_if *ifp = netdev_priv(ndev); 4505 const struct brcmf_tlv *ssid_ie; 4506 const struct brcmf_tlv *country_ie; 4507 struct brcmf_ssid_le ssid_le; 4508 s32 err = -EPERM; 4509 const struct brcmf_tlv *rsn_ie; 4510 const struct brcmf_vs_tlv *wpa_ie; 4511 struct brcmf_join_params join_params; 4512 enum nl80211_iftype dev_role; 4513 struct brcmf_fil_bss_enable_le bss_enable; 4514 u16 chanspec = chandef_to_chanspec(&cfg->d11inf, &settings->chandef); 4515 bool mbss; 4516 int is_11d; 4517 bool supports_11d; 4518 4519 brcmf_dbg(TRACE, "ctrlchn=%d, center=%d, bw=%d, beacon_interval=%d, dtim_period=%d,\n", 4520 settings->chandef.chan->hw_value, 4521 settings->chandef.center_freq1, settings->chandef.width, 4522 settings->beacon_interval, settings->dtim_period); 4523 brcmf_dbg(TRACE, "ssid=%s(%zu), auth_type=%d, inactivity_timeout=%d\n", 4524 settings->ssid, settings->ssid_len, settings->auth_type, 4525 settings->inactivity_timeout); 4526 dev_role = ifp->vif->wdev.iftype; 4527 mbss = ifp->vif->mbss; 4528 4529 /* store current 11d setting */ 4530 if (brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_REGULATORY, 4531 &ifp->vif->is_11d)) { 4532 is_11d = supports_11d = false; 4533 } else { 4534 country_ie = brcmf_parse_tlvs((u8 *)settings->beacon.tail, 4535 settings->beacon.tail_len, 4536 WLAN_EID_COUNTRY); 4537 is_11d = country_ie ? 1 : 0; 4538 supports_11d = true; 4539 } 4540 4541 memset(&ssid_le, 0, sizeof(ssid_le)); 4542 if (settings->ssid == NULL || settings->ssid_len == 0) { 4543 ie_offset = DOT11_MGMT_HDR_LEN + DOT11_BCN_PRB_FIXED_LEN; 4544 ssid_ie = brcmf_parse_tlvs( 4545 (u8 *)&settings->beacon.head[ie_offset], 4546 settings->beacon.head_len - ie_offset, 4547 WLAN_EID_SSID); 4548 if (!ssid_ie || ssid_ie->len > IEEE80211_MAX_SSID_LEN) 4549 return -EINVAL; 4550 4551 memcpy(ssid_le.SSID, ssid_ie->data, ssid_ie->len); 4552 ssid_le.SSID_len = cpu_to_le32(ssid_ie->len); 4553 brcmf_dbg(TRACE, "SSID is (%s) in Head\n", ssid_le.SSID); 4554 } else { 4555 memcpy(ssid_le.SSID, settings->ssid, settings->ssid_len); 4556 ssid_le.SSID_len = cpu_to_le32((u32)settings->ssid_len); 4557 } 4558 4559 if (!mbss) { 4560 brcmf_set_mpc(ifp, 0); 4561 brcmf_configure_arp_nd_offload(ifp, false); 4562 } 4563 4564 /* find the RSN_IE */ 4565 rsn_ie = brcmf_parse_tlvs((u8 *)settings->beacon.tail, 4566 settings->beacon.tail_len, WLAN_EID_RSN); 4567 4568 /* find the WPA_IE */ 4569 wpa_ie = brcmf_find_wpaie((u8 *)settings->beacon.tail, 4570 settings->beacon.tail_len); 4571 4572 if ((wpa_ie != NULL || rsn_ie != NULL)) { 4573 brcmf_dbg(TRACE, "WPA(2) IE is found\n"); 4574 if (wpa_ie != NULL) { 4575 /* WPA IE */ 4576 err = brcmf_configure_wpaie(ifp, wpa_ie, false); 4577 if (err < 0) 4578 goto exit; 4579 } else { 4580 struct brcmf_vs_tlv *tmp_ie; 4581 4582 tmp_ie = (struct brcmf_vs_tlv *)rsn_ie; 4583 4584 /* RSN IE */ 4585 err = brcmf_configure_wpaie(ifp, tmp_ie, true); 4586 if (err < 0) 4587 goto exit; 4588 } 4589 } else { 4590 brcmf_dbg(TRACE, "No WPA(2) IEs found\n"); 4591 brcmf_configure_opensecurity(ifp); 4592 } 4593 4594 /* Parameters shared by all radio interfaces */ 4595 if (!mbss) { 4596 if ((supports_11d) && (is_11d != ifp->vif->is_11d)) { 4597 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_REGULATORY, 4598 is_11d); 4599 if (err < 0) { 4600 brcmf_err("Regulatory Set Error, %d\n", err); 4601 goto exit; 4602 } 4603 } 4604 if (settings->beacon_interval) { 4605 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_BCNPRD, 4606 settings->beacon_interval); 4607 if (err < 0) { 4608 brcmf_err("Beacon Interval Set Error, %d\n", 4609 err); 4610 goto exit; 4611 } 4612 } 4613 if (settings->dtim_period) { 4614 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_DTIMPRD, 4615 settings->dtim_period); 4616 if (err < 0) { 4617 brcmf_err("DTIM Interval Set Error, %d\n", err); 4618 goto exit; 4619 } 4620 } 4621 4622 if ((dev_role == NL80211_IFTYPE_AP) && 4623 ((ifp->ifidx == 0) || 4624 !brcmf_feat_is_enabled(ifp, BRCMF_FEAT_RSDB))) { 4625 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_DOWN, 1); 4626 if (err < 0) { 4627 brcmf_err("BRCMF_C_DOWN error %d\n", err); 4628 goto exit; 4629 } 4630 brcmf_fil_iovar_int_set(ifp, "apsta", 0); 4631 } 4632 4633 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_INFRA, 1); 4634 if (err < 0) { 4635 brcmf_err("SET INFRA error %d\n", err); 4636 goto exit; 4637 } 4638 } else if (WARN_ON(supports_11d && (is_11d != ifp->vif->is_11d))) { 4639 /* Multiple-BSS should use same 11d configuration */ 4640 err = -EINVAL; 4641 goto exit; 4642 } 4643 4644 /* Interface specific setup */ 4645 if (dev_role == NL80211_IFTYPE_AP) { 4646 if ((brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MBSS)) && (!mbss)) 4647 brcmf_fil_iovar_int_set(ifp, "mbss", 1); 4648 4649 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_AP, 1); 4650 if (err < 0) { 4651 brcmf_err("setting AP mode failed %d\n", err); 4652 goto exit; 4653 } 4654 if (!mbss) { 4655 /* Firmware 10.x requires setting channel after enabling 4656 * AP and before bringing interface up. 4657 */ 4658 err = brcmf_fil_iovar_int_set(ifp, "chanspec", chanspec); 4659 if (err < 0) { 4660 brcmf_err("Set Channel failed: chspec=%d, %d\n", 4661 chanspec, err); 4662 goto exit; 4663 } 4664 } 4665 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 1); 4666 if (err < 0) { 4667 brcmf_err("BRCMF_C_UP error (%d)\n", err); 4668 goto exit; 4669 } 4670 /* On DOWN the firmware removes the WEP keys, reconfigure 4671 * them if they were set. 4672 */ 4673 brcmf_cfg80211_reconfigure_wep(ifp); 4674 4675 memset(&join_params, 0, sizeof(join_params)); 4676 /* join parameters starts with ssid */ 4677 memcpy(&join_params.ssid_le, &ssid_le, sizeof(ssid_le)); 4678 /* create softap */ 4679 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID, 4680 &join_params, sizeof(join_params)); 4681 if (err < 0) { 4682 brcmf_err("SET SSID error (%d)\n", err); 4683 goto exit; 4684 } 4685 4686 if (settings->hidden_ssid) { 4687 err = brcmf_fil_iovar_int_set(ifp, "closednet", 1); 4688 if (err) { 4689 brcmf_err("closednet error (%d)\n", err); 4690 goto exit; 4691 } 4692 } 4693 4694 brcmf_dbg(TRACE, "AP mode configuration complete\n"); 4695 } else if (dev_role == NL80211_IFTYPE_P2P_GO) { 4696 err = brcmf_fil_iovar_int_set(ifp, "chanspec", chanspec); 4697 if (err < 0) { 4698 brcmf_err("Set Channel failed: chspec=%d, %d\n", 4699 chanspec, err); 4700 goto exit; 4701 } 4702 err = brcmf_fil_bsscfg_data_set(ifp, "ssid", &ssid_le, 4703 sizeof(ssid_le)); 4704 if (err < 0) { 4705 brcmf_err("setting ssid failed %d\n", err); 4706 goto exit; 4707 } 4708 bss_enable.bsscfgidx = cpu_to_le32(ifp->bsscfgidx); 4709 bss_enable.enable = cpu_to_le32(1); 4710 err = brcmf_fil_iovar_data_set(ifp, "bss", &bss_enable, 4711 sizeof(bss_enable)); 4712 if (err < 0) { 4713 brcmf_err("bss_enable config failed %d\n", err); 4714 goto exit; 4715 } 4716 4717 brcmf_dbg(TRACE, "GO mode configuration complete\n"); 4718 } else { 4719 WARN_ON(1); 4720 } 4721 4722 brcmf_config_ap_mgmt_ie(ifp->vif, &settings->beacon); 4723 set_bit(BRCMF_VIF_STATUS_AP_CREATED, &ifp->vif->sme_state); 4724 brcmf_net_setcarrier(ifp, true); 4725 4726 exit: 4727 if ((err) && (!mbss)) { 4728 brcmf_set_mpc(ifp, 1); 4729 brcmf_configure_arp_nd_offload(ifp, true); 4730 } 4731 return err; 4732 } 4733 4734 static int brcmf_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *ndev) 4735 { 4736 struct brcmf_if *ifp = netdev_priv(ndev); 4737 s32 err; 4738 struct brcmf_fil_bss_enable_le bss_enable; 4739 struct brcmf_join_params join_params; 4740 4741 brcmf_dbg(TRACE, "Enter\n"); 4742 4743 if (ifp->vif->wdev.iftype == NL80211_IFTYPE_AP) { 4744 /* Due to most likely deauths outstanding we sleep */ 4745 /* first to make sure they get processed by fw. */ 4746 msleep(400); 4747 4748 if (ifp->vif->mbss) { 4749 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_DOWN, 1); 4750 return err; 4751 } 4752 4753 /* First BSS doesn't get a full reset */ 4754 if (ifp->bsscfgidx == 0) 4755 brcmf_fil_iovar_int_set(ifp, "closednet", 0); 4756 4757 memset(&join_params, 0, sizeof(join_params)); 4758 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID, 4759 &join_params, sizeof(join_params)); 4760 if (err < 0) 4761 brcmf_err("SET SSID error (%d)\n", err); 4762 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_DOWN, 1); 4763 if (err < 0) 4764 brcmf_err("BRCMF_C_DOWN error %d\n", err); 4765 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_AP, 0); 4766 if (err < 0) 4767 brcmf_err("setting AP mode failed %d\n", err); 4768 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MBSS)) 4769 brcmf_fil_iovar_int_set(ifp, "mbss", 0); 4770 brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_REGULATORY, 4771 ifp->vif->is_11d); 4772 /* Bring device back up so it can be used again */ 4773 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 1); 4774 if (err < 0) 4775 brcmf_err("BRCMF_C_UP error %d\n", err); 4776 4777 brcmf_vif_clear_mgmt_ies(ifp->vif); 4778 } else { 4779 bss_enable.bsscfgidx = cpu_to_le32(ifp->bsscfgidx); 4780 bss_enable.enable = cpu_to_le32(0); 4781 err = brcmf_fil_iovar_data_set(ifp, "bss", &bss_enable, 4782 sizeof(bss_enable)); 4783 if (err < 0) 4784 brcmf_err("bss_enable config failed %d\n", err); 4785 } 4786 brcmf_set_mpc(ifp, 1); 4787 brcmf_configure_arp_nd_offload(ifp, true); 4788 clear_bit(BRCMF_VIF_STATUS_AP_CREATED, &ifp->vif->sme_state); 4789 brcmf_net_setcarrier(ifp, false); 4790 4791 return err; 4792 } 4793 4794 static s32 4795 brcmf_cfg80211_change_beacon(struct wiphy *wiphy, struct net_device *ndev, 4796 struct cfg80211_beacon_data *info) 4797 { 4798 struct brcmf_if *ifp = netdev_priv(ndev); 4799 s32 err; 4800 4801 brcmf_dbg(TRACE, "Enter\n"); 4802 4803 err = brcmf_config_ap_mgmt_ie(ifp->vif, info); 4804 4805 return err; 4806 } 4807 4808 static int 4809 brcmf_cfg80211_del_station(struct wiphy *wiphy, struct net_device *ndev, 4810 struct station_del_parameters *params) 4811 { 4812 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 4813 struct brcmf_scb_val_le scbval; 4814 struct brcmf_if *ifp = netdev_priv(ndev); 4815 s32 err; 4816 4817 if (!params->mac) 4818 return -EFAULT; 4819 4820 brcmf_dbg(TRACE, "Enter %pM\n", params->mac); 4821 4822 if (ifp->vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif) 4823 ifp = cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif->ifp; 4824 if (!check_vif_up(ifp->vif)) 4825 return -EIO; 4826 4827 memcpy(&scbval.ea, params->mac, ETH_ALEN); 4828 scbval.val = cpu_to_le32(params->reason_code); 4829 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SCB_DEAUTHENTICATE_FOR_REASON, 4830 &scbval, sizeof(scbval)); 4831 if (err) 4832 brcmf_err("SCB_DEAUTHENTICATE_FOR_REASON failed %d\n", err); 4833 4834 brcmf_dbg(TRACE, "Exit\n"); 4835 return err; 4836 } 4837 4838 static int 4839 brcmf_cfg80211_change_station(struct wiphy *wiphy, struct net_device *ndev, 4840 const u8 *mac, struct station_parameters *params) 4841 { 4842 struct brcmf_if *ifp = netdev_priv(ndev); 4843 s32 err; 4844 4845 brcmf_dbg(TRACE, "Enter, MAC %pM, mask 0x%04x set 0x%04x\n", mac, 4846 params->sta_flags_mask, params->sta_flags_set); 4847 4848 /* Ignore all 00 MAC */ 4849 if (is_zero_ether_addr(mac)) 4850 return 0; 4851 4852 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED))) 4853 return 0; 4854 4855 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED)) 4856 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SCB_AUTHORIZE, 4857 (void *)mac, ETH_ALEN); 4858 else 4859 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SCB_DEAUTHORIZE, 4860 (void *)mac, ETH_ALEN); 4861 if (err < 0) 4862 brcmf_err("Setting SCB (de-)authorize failed, %d\n", err); 4863 4864 return err; 4865 } 4866 4867 static void 4868 brcmf_cfg80211_mgmt_frame_register(struct wiphy *wiphy, 4869 struct wireless_dev *wdev, 4870 u16 frame_type, bool reg) 4871 { 4872 struct brcmf_cfg80211_vif *vif; 4873 u16 mgmt_type; 4874 4875 brcmf_dbg(TRACE, "Enter, frame_type %04x, reg=%d\n", frame_type, reg); 4876 4877 mgmt_type = (frame_type & IEEE80211_FCTL_STYPE) >> 4; 4878 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev); 4879 if (reg) 4880 vif->mgmt_rx_reg |= BIT(mgmt_type); 4881 else 4882 vif->mgmt_rx_reg &= ~BIT(mgmt_type); 4883 } 4884 4885 4886 static int 4887 brcmf_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, 4888 struct cfg80211_mgmt_tx_params *params, u64 *cookie) 4889 { 4890 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 4891 struct ieee80211_channel *chan = params->chan; 4892 const u8 *buf = params->buf; 4893 size_t len = params->len; 4894 const struct ieee80211_mgmt *mgmt; 4895 struct brcmf_cfg80211_vif *vif; 4896 s32 err = 0; 4897 s32 ie_offset; 4898 s32 ie_len; 4899 struct brcmf_fil_action_frame_le *action_frame; 4900 struct brcmf_fil_af_params_le *af_params; 4901 bool ack; 4902 s32 chan_nr; 4903 u32 freq; 4904 4905 brcmf_dbg(TRACE, "Enter\n"); 4906 4907 *cookie = 0; 4908 4909 mgmt = (const struct ieee80211_mgmt *)buf; 4910 4911 if (!ieee80211_is_mgmt(mgmt->frame_control)) { 4912 brcmf_err("Driver only allows MGMT packet type\n"); 4913 return -EPERM; 4914 } 4915 4916 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev); 4917 4918 if (ieee80211_is_probe_resp(mgmt->frame_control)) { 4919 /* Right now the only reason to get a probe response */ 4920 /* is for p2p listen response or for p2p GO from */ 4921 /* wpa_supplicant. Unfortunately the probe is send */ 4922 /* on primary ndev, while dongle wants it on the p2p */ 4923 /* vif. Since this is only reason for a probe */ 4924 /* response to be sent, the vif is taken from cfg. */ 4925 /* If ever desired to send proberesp for non p2p */ 4926 /* response then data should be checked for */ 4927 /* "DIRECT-". Note in future supplicant will take */ 4928 /* dedicated p2p wdev to do this and then this 'hack'*/ 4929 /* is not needed anymore. */ 4930 ie_offset = DOT11_MGMT_HDR_LEN + 4931 DOT11_BCN_PRB_FIXED_LEN; 4932 ie_len = len - ie_offset; 4933 if (vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif) 4934 vif = cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif; 4935 err = brcmf_vif_set_mgmt_ie(vif, 4936 BRCMF_VNDR_IE_PRBRSP_FLAG, 4937 &buf[ie_offset], 4938 ie_len); 4939 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true, 4940 GFP_KERNEL); 4941 } else if (ieee80211_is_action(mgmt->frame_control)) { 4942 if (len > BRCMF_FIL_ACTION_FRAME_SIZE + DOT11_MGMT_HDR_LEN) { 4943 brcmf_err("invalid action frame length\n"); 4944 err = -EINVAL; 4945 goto exit; 4946 } 4947 af_params = kzalloc(sizeof(*af_params), GFP_KERNEL); 4948 if (af_params == NULL) { 4949 brcmf_err("unable to allocate frame\n"); 4950 err = -ENOMEM; 4951 goto exit; 4952 } 4953 action_frame = &af_params->action_frame; 4954 /* Add the packet Id */ 4955 action_frame->packet_id = cpu_to_le32(*cookie); 4956 /* Add BSSID */ 4957 memcpy(&action_frame->da[0], &mgmt->da[0], ETH_ALEN); 4958 memcpy(&af_params->bssid[0], &mgmt->bssid[0], ETH_ALEN); 4959 /* Add the length exepted for 802.11 header */ 4960 action_frame->len = cpu_to_le16(len - DOT11_MGMT_HDR_LEN); 4961 /* Add the channel. Use the one specified as parameter if any or 4962 * the current one (got from the firmware) otherwise 4963 */ 4964 if (chan) 4965 freq = chan->center_freq; 4966 else 4967 brcmf_fil_cmd_int_get(vif->ifp, BRCMF_C_GET_CHANNEL, 4968 &freq); 4969 chan_nr = ieee80211_frequency_to_channel(freq); 4970 af_params->channel = cpu_to_le32(chan_nr); 4971 4972 memcpy(action_frame->data, &buf[DOT11_MGMT_HDR_LEN], 4973 le16_to_cpu(action_frame->len)); 4974 4975 brcmf_dbg(TRACE, "Action frame, cookie=%lld, len=%d, freq=%d\n", 4976 *cookie, le16_to_cpu(action_frame->len), freq); 4977 4978 ack = brcmf_p2p_send_action_frame(cfg, cfg_to_ndev(cfg), 4979 af_params); 4980 4981 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, ack, 4982 GFP_KERNEL); 4983 kfree(af_params); 4984 } else { 4985 brcmf_dbg(TRACE, "Unhandled, fc=%04x!!\n", mgmt->frame_control); 4986 brcmf_dbg_hex_dump(true, buf, len, "payload, len=%zu\n", len); 4987 } 4988 4989 exit: 4990 return err; 4991 } 4992 4993 4994 static int 4995 brcmf_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy, 4996 struct wireless_dev *wdev, 4997 u64 cookie) 4998 { 4999 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 5000 struct brcmf_cfg80211_vif *vif; 5001 int err = 0; 5002 5003 brcmf_dbg(TRACE, "Enter p2p listen cancel\n"); 5004 5005 vif = cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif; 5006 if (vif == NULL) { 5007 brcmf_err("No p2p device available for probe response\n"); 5008 err = -ENODEV; 5009 goto exit; 5010 } 5011 brcmf_p2p_cancel_remain_on_channel(vif->ifp); 5012 exit: 5013 return err; 5014 } 5015 5016 static int brcmf_cfg80211_get_channel(struct wiphy *wiphy, 5017 struct wireless_dev *wdev, 5018 struct cfg80211_chan_def *chandef) 5019 { 5020 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 5021 struct net_device *ndev = wdev->netdev; 5022 struct brcmf_if *ifp; 5023 struct brcmu_chan ch; 5024 enum nl80211_band band = 0; 5025 enum nl80211_chan_width width = 0; 5026 u32 chanspec; 5027 int freq, err; 5028 5029 if (!ndev) 5030 return -ENODEV; 5031 ifp = netdev_priv(ndev); 5032 5033 err = brcmf_fil_iovar_int_get(ifp, "chanspec", &chanspec); 5034 if (err) { 5035 brcmf_err("chanspec failed (%d)\n", err); 5036 return err; 5037 } 5038 5039 ch.chspec = chanspec; 5040 cfg->d11inf.decchspec(&ch); 5041 5042 switch (ch.band) { 5043 case BRCMU_CHAN_BAND_2G: 5044 band = NL80211_BAND_2GHZ; 5045 break; 5046 case BRCMU_CHAN_BAND_5G: 5047 band = NL80211_BAND_5GHZ; 5048 break; 5049 } 5050 5051 switch (ch.bw) { 5052 case BRCMU_CHAN_BW_80: 5053 width = NL80211_CHAN_WIDTH_80; 5054 break; 5055 case BRCMU_CHAN_BW_40: 5056 width = NL80211_CHAN_WIDTH_40; 5057 break; 5058 case BRCMU_CHAN_BW_20: 5059 width = NL80211_CHAN_WIDTH_20; 5060 break; 5061 case BRCMU_CHAN_BW_80P80: 5062 width = NL80211_CHAN_WIDTH_80P80; 5063 break; 5064 case BRCMU_CHAN_BW_160: 5065 width = NL80211_CHAN_WIDTH_160; 5066 break; 5067 } 5068 5069 freq = ieee80211_channel_to_frequency(ch.control_ch_num, band); 5070 chandef->chan = ieee80211_get_channel(wiphy, freq); 5071 chandef->width = width; 5072 chandef->center_freq1 = ieee80211_channel_to_frequency(ch.chnum, band); 5073 chandef->center_freq2 = 0; 5074 5075 return 0; 5076 } 5077 5078 static int brcmf_cfg80211_crit_proto_start(struct wiphy *wiphy, 5079 struct wireless_dev *wdev, 5080 enum nl80211_crit_proto_id proto, 5081 u16 duration) 5082 { 5083 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 5084 struct brcmf_cfg80211_vif *vif; 5085 5086 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev); 5087 5088 /* only DHCP support for now */ 5089 if (proto != NL80211_CRIT_PROTO_DHCP) 5090 return -EINVAL; 5091 5092 /* suppress and abort scanning */ 5093 set_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status); 5094 brcmf_abort_scanning(cfg); 5095 5096 return brcmf_btcoex_set_mode(vif, BRCMF_BTCOEX_DISABLED, duration); 5097 } 5098 5099 static void brcmf_cfg80211_crit_proto_stop(struct wiphy *wiphy, 5100 struct wireless_dev *wdev) 5101 { 5102 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 5103 struct brcmf_cfg80211_vif *vif; 5104 5105 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev); 5106 5107 brcmf_btcoex_set_mode(vif, BRCMF_BTCOEX_ENABLED, 0); 5108 clear_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status); 5109 } 5110 5111 static s32 5112 brcmf_notify_tdls_peer_event(struct brcmf_if *ifp, 5113 const struct brcmf_event_msg *e, void *data) 5114 { 5115 switch (e->reason) { 5116 case BRCMF_E_REASON_TDLS_PEER_DISCOVERED: 5117 brcmf_dbg(TRACE, "TDLS Peer Discovered\n"); 5118 break; 5119 case BRCMF_E_REASON_TDLS_PEER_CONNECTED: 5120 brcmf_dbg(TRACE, "TDLS Peer Connected\n"); 5121 brcmf_proto_add_tdls_peer(ifp->drvr, ifp->ifidx, (u8 *)e->addr); 5122 break; 5123 case BRCMF_E_REASON_TDLS_PEER_DISCONNECTED: 5124 brcmf_dbg(TRACE, "TDLS Peer Disconnected\n"); 5125 brcmf_proto_delete_peer(ifp->drvr, ifp->ifidx, (u8 *)e->addr); 5126 break; 5127 } 5128 5129 return 0; 5130 } 5131 5132 static int brcmf_convert_nl80211_tdls_oper(enum nl80211_tdls_operation oper) 5133 { 5134 int ret; 5135 5136 switch (oper) { 5137 case NL80211_TDLS_DISCOVERY_REQ: 5138 ret = BRCMF_TDLS_MANUAL_EP_DISCOVERY; 5139 break; 5140 case NL80211_TDLS_SETUP: 5141 ret = BRCMF_TDLS_MANUAL_EP_CREATE; 5142 break; 5143 case NL80211_TDLS_TEARDOWN: 5144 ret = BRCMF_TDLS_MANUAL_EP_DELETE; 5145 break; 5146 default: 5147 brcmf_err("unsupported operation: %d\n", oper); 5148 ret = -EOPNOTSUPP; 5149 } 5150 return ret; 5151 } 5152 5153 static int brcmf_cfg80211_tdls_oper(struct wiphy *wiphy, 5154 struct net_device *ndev, const u8 *peer, 5155 enum nl80211_tdls_operation oper) 5156 { 5157 struct brcmf_if *ifp; 5158 struct brcmf_tdls_iovar_le info; 5159 int ret = 0; 5160 5161 ret = brcmf_convert_nl80211_tdls_oper(oper); 5162 if (ret < 0) 5163 return ret; 5164 5165 ifp = netdev_priv(ndev); 5166 memset(&info, 0, sizeof(info)); 5167 info.mode = (u8)ret; 5168 if (peer) 5169 memcpy(info.ea, peer, ETH_ALEN); 5170 5171 ret = brcmf_fil_iovar_data_set(ifp, "tdls_endpoint", 5172 &info, sizeof(info)); 5173 if (ret < 0) 5174 brcmf_err("tdls_endpoint iovar failed: ret=%d\n", ret); 5175 5176 return ret; 5177 } 5178 5179 static int 5180 brcmf_cfg80211_update_conn_params(struct wiphy *wiphy, 5181 struct net_device *ndev, 5182 struct cfg80211_connect_params *sme, 5183 u32 changed) 5184 { 5185 struct brcmf_if *ifp; 5186 int err; 5187 5188 if (!(changed & UPDATE_ASSOC_IES)) 5189 return 0; 5190 5191 ifp = netdev_priv(ndev); 5192 err = brcmf_vif_set_mgmt_ie(ifp->vif, BRCMF_VNDR_IE_ASSOCREQ_FLAG, 5193 sme->ie, sme->ie_len); 5194 if (err) 5195 brcmf_err("Set Assoc REQ IE Failed\n"); 5196 else 5197 brcmf_dbg(TRACE, "Applied Vndr IEs for Assoc request\n"); 5198 5199 return err; 5200 } 5201 5202 #ifdef CONFIG_PM 5203 static int 5204 brcmf_cfg80211_set_rekey_data(struct wiphy *wiphy, struct net_device *ndev, 5205 struct cfg80211_gtk_rekey_data *gtk) 5206 { 5207 struct brcmf_if *ifp = netdev_priv(ndev); 5208 struct brcmf_gtk_keyinfo_le gtk_le; 5209 int ret; 5210 5211 brcmf_dbg(TRACE, "Enter, bssidx=%d\n", ifp->bsscfgidx); 5212 5213 memcpy(gtk_le.kck, gtk->kck, sizeof(gtk_le.kck)); 5214 memcpy(gtk_le.kek, gtk->kek, sizeof(gtk_le.kek)); 5215 memcpy(gtk_le.replay_counter, gtk->replay_ctr, 5216 sizeof(gtk_le.replay_counter)); 5217 5218 ret = brcmf_fil_iovar_data_set(ifp, "gtk_key_info", >k_le, 5219 sizeof(gtk_le)); 5220 if (ret < 0) 5221 brcmf_err("gtk_key_info iovar failed: ret=%d\n", ret); 5222 5223 return ret; 5224 } 5225 #endif 5226 5227 static int brcmf_cfg80211_set_pmk(struct wiphy *wiphy, struct net_device *dev, 5228 const struct cfg80211_pmk_conf *conf) 5229 { 5230 struct brcmf_if *ifp; 5231 5232 brcmf_dbg(TRACE, "enter\n"); 5233 5234 /* expect using firmware supplicant for 1X */ 5235 ifp = netdev_priv(dev); 5236 if (WARN_ON(ifp->vif->profile.use_fwsup != BRCMF_PROFILE_FWSUP_1X)) 5237 return -EINVAL; 5238 5239 return brcmf_set_pmk(ifp, conf->pmk, conf->pmk_len); 5240 } 5241 5242 static int brcmf_cfg80211_del_pmk(struct wiphy *wiphy, struct net_device *dev, 5243 const u8 *aa) 5244 { 5245 struct brcmf_if *ifp; 5246 5247 brcmf_dbg(TRACE, "enter\n"); 5248 ifp = netdev_priv(dev); 5249 if (WARN_ON(ifp->vif->profile.use_fwsup != BRCMF_PROFILE_FWSUP_1X)) 5250 return -EINVAL; 5251 5252 return brcmf_set_pmk(ifp, NULL, 0); 5253 } 5254 5255 static struct cfg80211_ops brcmf_cfg80211_ops = { 5256 .add_virtual_intf = brcmf_cfg80211_add_iface, 5257 .del_virtual_intf = brcmf_cfg80211_del_iface, 5258 .change_virtual_intf = brcmf_cfg80211_change_iface, 5259 .scan = brcmf_cfg80211_scan, 5260 .set_wiphy_params = brcmf_cfg80211_set_wiphy_params, 5261 .join_ibss = brcmf_cfg80211_join_ibss, 5262 .leave_ibss = brcmf_cfg80211_leave_ibss, 5263 .get_station = brcmf_cfg80211_get_station, 5264 .dump_station = brcmf_cfg80211_dump_station, 5265 .set_tx_power = brcmf_cfg80211_set_tx_power, 5266 .get_tx_power = brcmf_cfg80211_get_tx_power, 5267 .add_key = brcmf_cfg80211_add_key, 5268 .del_key = brcmf_cfg80211_del_key, 5269 .get_key = brcmf_cfg80211_get_key, 5270 .set_default_key = brcmf_cfg80211_config_default_key, 5271 .set_default_mgmt_key = brcmf_cfg80211_config_default_mgmt_key, 5272 .set_power_mgmt = brcmf_cfg80211_set_power_mgmt, 5273 .connect = brcmf_cfg80211_connect, 5274 .disconnect = brcmf_cfg80211_disconnect, 5275 .suspend = brcmf_cfg80211_suspend, 5276 .resume = brcmf_cfg80211_resume, 5277 .set_pmksa = brcmf_cfg80211_set_pmksa, 5278 .del_pmksa = brcmf_cfg80211_del_pmksa, 5279 .flush_pmksa = brcmf_cfg80211_flush_pmksa, 5280 .start_ap = brcmf_cfg80211_start_ap, 5281 .stop_ap = brcmf_cfg80211_stop_ap, 5282 .change_beacon = brcmf_cfg80211_change_beacon, 5283 .del_station = brcmf_cfg80211_del_station, 5284 .change_station = brcmf_cfg80211_change_station, 5285 .sched_scan_start = brcmf_cfg80211_sched_scan_start, 5286 .sched_scan_stop = brcmf_cfg80211_sched_scan_stop, 5287 .mgmt_frame_register = brcmf_cfg80211_mgmt_frame_register, 5288 .mgmt_tx = brcmf_cfg80211_mgmt_tx, 5289 .remain_on_channel = brcmf_p2p_remain_on_channel, 5290 .cancel_remain_on_channel = brcmf_cfg80211_cancel_remain_on_channel, 5291 .get_channel = brcmf_cfg80211_get_channel, 5292 .start_p2p_device = brcmf_p2p_start_device, 5293 .stop_p2p_device = brcmf_p2p_stop_device, 5294 .crit_proto_start = brcmf_cfg80211_crit_proto_start, 5295 .crit_proto_stop = brcmf_cfg80211_crit_proto_stop, 5296 .tdls_oper = brcmf_cfg80211_tdls_oper, 5297 .update_connect_params = brcmf_cfg80211_update_conn_params, 5298 .set_pmk = brcmf_cfg80211_set_pmk, 5299 .del_pmk = brcmf_cfg80211_del_pmk, 5300 }; 5301 5302 struct brcmf_cfg80211_vif *brcmf_alloc_vif(struct brcmf_cfg80211_info *cfg, 5303 enum nl80211_iftype type) 5304 { 5305 struct brcmf_cfg80211_vif *vif_walk; 5306 struct brcmf_cfg80211_vif *vif; 5307 bool mbss; 5308 5309 brcmf_dbg(TRACE, "allocating virtual interface (size=%zu)\n", 5310 sizeof(*vif)); 5311 vif = kzalloc(sizeof(*vif), GFP_KERNEL); 5312 if (!vif) 5313 return ERR_PTR(-ENOMEM); 5314 5315 vif->wdev.wiphy = cfg->wiphy; 5316 vif->wdev.iftype = type; 5317 5318 brcmf_init_prof(&vif->profile); 5319 5320 if (type == NL80211_IFTYPE_AP) { 5321 mbss = false; 5322 list_for_each_entry(vif_walk, &cfg->vif_list, list) { 5323 if (vif_walk->wdev.iftype == NL80211_IFTYPE_AP) { 5324 mbss = true; 5325 break; 5326 } 5327 } 5328 vif->mbss = mbss; 5329 } 5330 5331 list_add_tail(&vif->list, &cfg->vif_list); 5332 return vif; 5333 } 5334 5335 void brcmf_free_vif(struct brcmf_cfg80211_vif *vif) 5336 { 5337 list_del(&vif->list); 5338 kfree(vif); 5339 } 5340 5341 void brcmf_cfg80211_free_netdev(struct net_device *ndev) 5342 { 5343 struct brcmf_cfg80211_vif *vif; 5344 struct brcmf_if *ifp; 5345 5346 ifp = netdev_priv(ndev); 5347 vif = ifp->vif; 5348 5349 if (vif) 5350 brcmf_free_vif(vif); 5351 } 5352 5353 static bool brcmf_is_linkup(struct brcmf_cfg80211_vif *vif, 5354 const struct brcmf_event_msg *e) 5355 { 5356 u32 event = e->event_code; 5357 u32 status = e->status; 5358 5359 if (vif->profile.use_fwsup == BRCMF_PROFILE_FWSUP_PSK && 5360 event == BRCMF_E_PSK_SUP && 5361 status == BRCMF_E_STATUS_FWSUP_COMPLETED) 5362 set_bit(BRCMF_VIF_STATUS_EAP_SUCCESS, &vif->sme_state); 5363 if (event == BRCMF_E_SET_SSID && status == BRCMF_E_STATUS_SUCCESS) { 5364 brcmf_dbg(CONN, "Processing set ssid\n"); 5365 memcpy(vif->profile.bssid, e->addr, ETH_ALEN); 5366 if (vif->profile.use_fwsup != BRCMF_PROFILE_FWSUP_PSK) 5367 return true; 5368 5369 set_bit(BRCMF_VIF_STATUS_ASSOC_SUCCESS, &vif->sme_state); 5370 } 5371 5372 if (test_bit(BRCMF_VIF_STATUS_EAP_SUCCESS, &vif->sme_state) && 5373 test_bit(BRCMF_VIF_STATUS_ASSOC_SUCCESS, &vif->sme_state)) { 5374 clear_bit(BRCMF_VIF_STATUS_EAP_SUCCESS, &vif->sme_state); 5375 clear_bit(BRCMF_VIF_STATUS_ASSOC_SUCCESS, &vif->sme_state); 5376 return true; 5377 } 5378 return false; 5379 } 5380 5381 static bool brcmf_is_linkdown(const struct brcmf_event_msg *e) 5382 { 5383 u32 event = e->event_code; 5384 u16 flags = e->flags; 5385 5386 if ((event == BRCMF_E_DEAUTH) || (event == BRCMF_E_DEAUTH_IND) || 5387 (event == BRCMF_E_DISASSOC_IND) || 5388 ((event == BRCMF_E_LINK) && (!(flags & BRCMF_EVENT_MSG_LINK)))) { 5389 brcmf_dbg(CONN, "Processing link down\n"); 5390 return true; 5391 } 5392 return false; 5393 } 5394 5395 static bool brcmf_is_nonetwork(struct brcmf_cfg80211_info *cfg, 5396 const struct brcmf_event_msg *e) 5397 { 5398 u32 event = e->event_code; 5399 u32 status = e->status; 5400 5401 if (event == BRCMF_E_LINK && status == BRCMF_E_STATUS_NO_NETWORKS) { 5402 brcmf_dbg(CONN, "Processing Link %s & no network found\n", 5403 e->flags & BRCMF_EVENT_MSG_LINK ? "up" : "down"); 5404 return true; 5405 } 5406 5407 if (event == BRCMF_E_SET_SSID && status != BRCMF_E_STATUS_SUCCESS) { 5408 brcmf_dbg(CONN, "Processing connecting & no network found\n"); 5409 return true; 5410 } 5411 5412 if (event == BRCMF_E_PSK_SUP && 5413 status != BRCMF_E_STATUS_FWSUP_COMPLETED) { 5414 brcmf_dbg(CONN, "Processing failed supplicant state: %u\n", 5415 status); 5416 return true; 5417 } 5418 5419 return false; 5420 } 5421 5422 static void brcmf_clear_assoc_ies(struct brcmf_cfg80211_info *cfg) 5423 { 5424 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg); 5425 5426 kfree(conn_info->req_ie); 5427 conn_info->req_ie = NULL; 5428 conn_info->req_ie_len = 0; 5429 kfree(conn_info->resp_ie); 5430 conn_info->resp_ie = NULL; 5431 conn_info->resp_ie_len = 0; 5432 } 5433 5434 static s32 brcmf_get_assoc_ies(struct brcmf_cfg80211_info *cfg, 5435 struct brcmf_if *ifp) 5436 { 5437 struct brcmf_cfg80211_assoc_ielen_le *assoc_info; 5438 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg); 5439 u32 req_len; 5440 u32 resp_len; 5441 s32 err = 0; 5442 5443 brcmf_clear_assoc_ies(cfg); 5444 5445 err = brcmf_fil_iovar_data_get(ifp, "assoc_info", 5446 cfg->extra_buf, WL_ASSOC_INFO_MAX); 5447 if (err) { 5448 brcmf_err("could not get assoc info (%d)\n", err); 5449 return err; 5450 } 5451 assoc_info = 5452 (struct brcmf_cfg80211_assoc_ielen_le *)cfg->extra_buf; 5453 req_len = le32_to_cpu(assoc_info->req_len); 5454 resp_len = le32_to_cpu(assoc_info->resp_len); 5455 if (req_len) { 5456 err = brcmf_fil_iovar_data_get(ifp, "assoc_req_ies", 5457 cfg->extra_buf, 5458 WL_ASSOC_INFO_MAX); 5459 if (err) { 5460 brcmf_err("could not get assoc req (%d)\n", err); 5461 return err; 5462 } 5463 conn_info->req_ie_len = req_len; 5464 conn_info->req_ie = 5465 kmemdup(cfg->extra_buf, conn_info->req_ie_len, 5466 GFP_KERNEL); 5467 } else { 5468 conn_info->req_ie_len = 0; 5469 conn_info->req_ie = NULL; 5470 } 5471 if (resp_len) { 5472 err = brcmf_fil_iovar_data_get(ifp, "assoc_resp_ies", 5473 cfg->extra_buf, 5474 WL_ASSOC_INFO_MAX); 5475 if (err) { 5476 brcmf_err("could not get assoc resp (%d)\n", err); 5477 return err; 5478 } 5479 conn_info->resp_ie_len = resp_len; 5480 conn_info->resp_ie = 5481 kmemdup(cfg->extra_buf, conn_info->resp_ie_len, 5482 GFP_KERNEL); 5483 } else { 5484 conn_info->resp_ie_len = 0; 5485 conn_info->resp_ie = NULL; 5486 } 5487 brcmf_dbg(CONN, "req len (%d) resp len (%d)\n", 5488 conn_info->req_ie_len, conn_info->resp_ie_len); 5489 5490 return err; 5491 } 5492 5493 static s32 5494 brcmf_bss_roaming_done(struct brcmf_cfg80211_info *cfg, 5495 struct net_device *ndev, 5496 const struct brcmf_event_msg *e) 5497 { 5498 struct brcmf_if *ifp = netdev_priv(ndev); 5499 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile; 5500 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg); 5501 struct wiphy *wiphy = cfg_to_wiphy(cfg); 5502 struct ieee80211_channel *notify_channel = NULL; 5503 struct ieee80211_supported_band *band; 5504 struct brcmf_bss_info_le *bi; 5505 struct brcmu_chan ch; 5506 struct cfg80211_roam_info roam_info = {}; 5507 u32 freq; 5508 s32 err = 0; 5509 u8 *buf; 5510 5511 brcmf_dbg(TRACE, "Enter\n"); 5512 5513 brcmf_get_assoc_ies(cfg, ifp); 5514 memcpy(profile->bssid, e->addr, ETH_ALEN); 5515 brcmf_update_bss_info(cfg, ifp); 5516 5517 buf = kzalloc(WL_BSS_INFO_MAX, GFP_KERNEL); 5518 if (buf == NULL) { 5519 err = -ENOMEM; 5520 goto done; 5521 } 5522 5523 /* data sent to dongle has to be little endian */ 5524 *(__le32 *)buf = cpu_to_le32(WL_BSS_INFO_MAX); 5525 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BSS_INFO, 5526 buf, WL_BSS_INFO_MAX); 5527 5528 if (err) 5529 goto done; 5530 5531 bi = (struct brcmf_bss_info_le *)(buf + 4); 5532 ch.chspec = le16_to_cpu(bi->chanspec); 5533 cfg->d11inf.decchspec(&ch); 5534 5535 if (ch.band == BRCMU_CHAN_BAND_2G) 5536 band = wiphy->bands[NL80211_BAND_2GHZ]; 5537 else 5538 band = wiphy->bands[NL80211_BAND_5GHZ]; 5539 5540 freq = ieee80211_channel_to_frequency(ch.control_ch_num, band->band); 5541 notify_channel = ieee80211_get_channel(wiphy, freq); 5542 5543 done: 5544 kfree(buf); 5545 5546 roam_info.channel = notify_channel; 5547 roam_info.bssid = profile->bssid; 5548 roam_info.req_ie = conn_info->req_ie; 5549 roam_info.req_ie_len = conn_info->req_ie_len; 5550 roam_info.resp_ie = conn_info->resp_ie; 5551 roam_info.resp_ie_len = conn_info->resp_ie_len; 5552 5553 cfg80211_roamed(ndev, &roam_info, GFP_KERNEL); 5554 brcmf_dbg(CONN, "Report roaming result\n"); 5555 5556 set_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state); 5557 brcmf_dbg(TRACE, "Exit\n"); 5558 return err; 5559 } 5560 5561 static s32 5562 brcmf_bss_connect_done(struct brcmf_cfg80211_info *cfg, 5563 struct net_device *ndev, const struct brcmf_event_msg *e, 5564 bool completed) 5565 { 5566 struct brcmf_if *ifp = netdev_priv(ndev); 5567 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile; 5568 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg); 5569 struct cfg80211_connect_resp_params conn_params; 5570 5571 brcmf_dbg(TRACE, "Enter\n"); 5572 5573 if (test_and_clear_bit(BRCMF_VIF_STATUS_CONNECTING, 5574 &ifp->vif->sme_state)) { 5575 memset(&conn_params, 0, sizeof(conn_params)); 5576 if (completed) { 5577 brcmf_get_assoc_ies(cfg, ifp); 5578 brcmf_update_bss_info(cfg, ifp); 5579 set_bit(BRCMF_VIF_STATUS_CONNECTED, 5580 &ifp->vif->sme_state); 5581 conn_params.status = WLAN_STATUS_SUCCESS; 5582 } else { 5583 conn_params.status = WLAN_STATUS_AUTH_TIMEOUT; 5584 } 5585 conn_params.bssid = profile->bssid; 5586 conn_params.req_ie = conn_info->req_ie; 5587 conn_params.req_ie_len = conn_info->req_ie_len; 5588 conn_params.resp_ie = conn_info->resp_ie; 5589 conn_params.resp_ie_len = conn_info->resp_ie_len; 5590 cfg80211_connect_done(ndev, &conn_params, GFP_KERNEL); 5591 brcmf_dbg(CONN, "Report connect result - connection %s\n", 5592 completed ? "succeeded" : "failed"); 5593 } 5594 brcmf_dbg(TRACE, "Exit\n"); 5595 return 0; 5596 } 5597 5598 static s32 5599 brcmf_notify_connect_status_ap(struct brcmf_cfg80211_info *cfg, 5600 struct net_device *ndev, 5601 const struct brcmf_event_msg *e, void *data) 5602 { 5603 static int generation; 5604 u32 event = e->event_code; 5605 u32 reason = e->reason; 5606 struct station_info sinfo; 5607 5608 brcmf_dbg(CONN, "event %s (%u), reason %d\n", 5609 brcmf_fweh_event_name(event), event, reason); 5610 if (event == BRCMF_E_LINK && reason == BRCMF_E_REASON_LINK_BSSCFG_DIS && 5611 ndev != cfg_to_ndev(cfg)) { 5612 brcmf_dbg(CONN, "AP mode link down\n"); 5613 complete(&cfg->vif_disabled); 5614 return 0; 5615 } 5616 5617 if (((event == BRCMF_E_ASSOC_IND) || (event == BRCMF_E_REASSOC_IND)) && 5618 (reason == BRCMF_E_STATUS_SUCCESS)) { 5619 memset(&sinfo, 0, sizeof(sinfo)); 5620 if (!data) { 5621 brcmf_err("No IEs present in ASSOC/REASSOC_IND"); 5622 return -EINVAL; 5623 } 5624 sinfo.assoc_req_ies = data; 5625 sinfo.assoc_req_ies_len = e->datalen; 5626 generation++; 5627 sinfo.generation = generation; 5628 cfg80211_new_sta(ndev, e->addr, &sinfo, GFP_KERNEL); 5629 } else if ((event == BRCMF_E_DISASSOC_IND) || 5630 (event == BRCMF_E_DEAUTH_IND) || 5631 (event == BRCMF_E_DEAUTH)) { 5632 cfg80211_del_sta(ndev, e->addr, GFP_KERNEL); 5633 } 5634 return 0; 5635 } 5636 5637 static s32 5638 brcmf_notify_connect_status(struct brcmf_if *ifp, 5639 const struct brcmf_event_msg *e, void *data) 5640 { 5641 struct brcmf_cfg80211_info *cfg = ifp->drvr->config; 5642 struct net_device *ndev = ifp->ndev; 5643 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile; 5644 struct ieee80211_channel *chan; 5645 s32 err = 0; 5646 5647 if ((e->event_code == BRCMF_E_DEAUTH) || 5648 (e->event_code == BRCMF_E_DEAUTH_IND) || 5649 (e->event_code == BRCMF_E_DISASSOC_IND) || 5650 ((e->event_code == BRCMF_E_LINK) && (!e->flags))) { 5651 brcmf_proto_delete_peer(ifp->drvr, ifp->ifidx, (u8 *)e->addr); 5652 } 5653 5654 if (brcmf_is_apmode(ifp->vif)) { 5655 err = brcmf_notify_connect_status_ap(cfg, ndev, e, data); 5656 } else if (brcmf_is_linkup(ifp->vif, e)) { 5657 brcmf_dbg(CONN, "Linkup\n"); 5658 if (brcmf_is_ibssmode(ifp->vif)) { 5659 brcmf_inform_ibss(cfg, ndev, e->addr); 5660 chan = ieee80211_get_channel(cfg->wiphy, cfg->channel); 5661 memcpy(profile->bssid, e->addr, ETH_ALEN); 5662 cfg80211_ibss_joined(ndev, e->addr, chan, GFP_KERNEL); 5663 clear_bit(BRCMF_VIF_STATUS_CONNECTING, 5664 &ifp->vif->sme_state); 5665 set_bit(BRCMF_VIF_STATUS_CONNECTED, 5666 &ifp->vif->sme_state); 5667 } else 5668 brcmf_bss_connect_done(cfg, ndev, e, true); 5669 brcmf_net_setcarrier(ifp, true); 5670 } else if (brcmf_is_linkdown(e)) { 5671 brcmf_dbg(CONN, "Linkdown\n"); 5672 if (!brcmf_is_ibssmode(ifp->vif)) { 5673 brcmf_bss_connect_done(cfg, ndev, e, false); 5674 brcmf_link_down(ifp->vif, 5675 brcmf_map_fw_linkdown_reason(e)); 5676 brcmf_init_prof(ndev_to_prof(ndev)); 5677 if (ndev != cfg_to_ndev(cfg)) 5678 complete(&cfg->vif_disabled); 5679 brcmf_net_setcarrier(ifp, false); 5680 } 5681 } else if (brcmf_is_nonetwork(cfg, e)) { 5682 if (brcmf_is_ibssmode(ifp->vif)) 5683 clear_bit(BRCMF_VIF_STATUS_CONNECTING, 5684 &ifp->vif->sme_state); 5685 else 5686 brcmf_bss_connect_done(cfg, ndev, e, false); 5687 } 5688 5689 return err; 5690 } 5691 5692 static s32 5693 brcmf_notify_roaming_status(struct brcmf_if *ifp, 5694 const struct brcmf_event_msg *e, void *data) 5695 { 5696 struct brcmf_cfg80211_info *cfg = ifp->drvr->config; 5697 u32 event = e->event_code; 5698 u32 status = e->status; 5699 5700 if (event == BRCMF_E_ROAM && status == BRCMF_E_STATUS_SUCCESS) { 5701 if (test_bit(BRCMF_VIF_STATUS_CONNECTED, 5702 &ifp->vif->sme_state)) { 5703 brcmf_bss_roaming_done(cfg, ifp->ndev, e); 5704 } else { 5705 brcmf_bss_connect_done(cfg, ifp->ndev, e, true); 5706 brcmf_net_setcarrier(ifp, true); 5707 } 5708 } 5709 5710 return 0; 5711 } 5712 5713 static s32 5714 brcmf_notify_mic_status(struct brcmf_if *ifp, 5715 const struct brcmf_event_msg *e, void *data) 5716 { 5717 u16 flags = e->flags; 5718 enum nl80211_key_type key_type; 5719 5720 if (flags & BRCMF_EVENT_MSG_GROUP) 5721 key_type = NL80211_KEYTYPE_GROUP; 5722 else 5723 key_type = NL80211_KEYTYPE_PAIRWISE; 5724 5725 cfg80211_michael_mic_failure(ifp->ndev, (u8 *)&e->addr, key_type, -1, 5726 NULL, GFP_KERNEL); 5727 5728 return 0; 5729 } 5730 5731 static s32 brcmf_notify_vif_event(struct brcmf_if *ifp, 5732 const struct brcmf_event_msg *e, void *data) 5733 { 5734 struct brcmf_cfg80211_info *cfg = ifp->drvr->config; 5735 struct brcmf_if_event *ifevent = (struct brcmf_if_event *)data; 5736 struct brcmf_cfg80211_vif_event *event = &cfg->vif_event; 5737 struct brcmf_cfg80211_vif *vif; 5738 5739 brcmf_dbg(TRACE, "Enter: action %u flags %u ifidx %u bsscfgidx %u\n", 5740 ifevent->action, ifevent->flags, ifevent->ifidx, 5741 ifevent->bsscfgidx); 5742 5743 spin_lock(&event->vif_event_lock); 5744 event->action = ifevent->action; 5745 vif = event->vif; 5746 5747 switch (ifevent->action) { 5748 case BRCMF_E_IF_ADD: 5749 /* waiting process may have timed out */ 5750 if (!cfg->vif_event.vif) { 5751 spin_unlock(&event->vif_event_lock); 5752 return -EBADF; 5753 } 5754 5755 ifp->vif = vif; 5756 vif->ifp = ifp; 5757 if (ifp->ndev) { 5758 vif->wdev.netdev = ifp->ndev; 5759 ifp->ndev->ieee80211_ptr = &vif->wdev; 5760 SET_NETDEV_DEV(ifp->ndev, wiphy_dev(cfg->wiphy)); 5761 } 5762 spin_unlock(&event->vif_event_lock); 5763 wake_up(&event->vif_wq); 5764 return 0; 5765 5766 case BRCMF_E_IF_DEL: 5767 spin_unlock(&event->vif_event_lock); 5768 /* event may not be upon user request */ 5769 if (brcmf_cfg80211_vif_event_armed(cfg)) 5770 wake_up(&event->vif_wq); 5771 return 0; 5772 5773 case BRCMF_E_IF_CHANGE: 5774 spin_unlock(&event->vif_event_lock); 5775 wake_up(&event->vif_wq); 5776 return 0; 5777 5778 default: 5779 spin_unlock(&event->vif_event_lock); 5780 break; 5781 } 5782 return -EINVAL; 5783 } 5784 5785 static void brcmf_init_conf(struct brcmf_cfg80211_conf *conf) 5786 { 5787 conf->frag_threshold = (u32)-1; 5788 conf->rts_threshold = (u32)-1; 5789 conf->retry_short = (u32)-1; 5790 conf->retry_long = (u32)-1; 5791 } 5792 5793 static void brcmf_register_event_handlers(struct brcmf_cfg80211_info *cfg) 5794 { 5795 brcmf_fweh_register(cfg->pub, BRCMF_E_LINK, 5796 brcmf_notify_connect_status); 5797 brcmf_fweh_register(cfg->pub, BRCMF_E_DEAUTH_IND, 5798 brcmf_notify_connect_status); 5799 brcmf_fweh_register(cfg->pub, BRCMF_E_DEAUTH, 5800 brcmf_notify_connect_status); 5801 brcmf_fweh_register(cfg->pub, BRCMF_E_DISASSOC_IND, 5802 brcmf_notify_connect_status); 5803 brcmf_fweh_register(cfg->pub, BRCMF_E_ASSOC_IND, 5804 brcmf_notify_connect_status); 5805 brcmf_fweh_register(cfg->pub, BRCMF_E_REASSOC_IND, 5806 brcmf_notify_connect_status); 5807 brcmf_fweh_register(cfg->pub, BRCMF_E_ROAM, 5808 brcmf_notify_roaming_status); 5809 brcmf_fweh_register(cfg->pub, BRCMF_E_MIC_ERROR, 5810 brcmf_notify_mic_status); 5811 brcmf_fweh_register(cfg->pub, BRCMF_E_SET_SSID, 5812 brcmf_notify_connect_status); 5813 brcmf_fweh_register(cfg->pub, BRCMF_E_PFN_NET_FOUND, 5814 brcmf_notify_sched_scan_results); 5815 brcmf_fweh_register(cfg->pub, BRCMF_E_IF, 5816 brcmf_notify_vif_event); 5817 brcmf_fweh_register(cfg->pub, BRCMF_E_P2P_PROBEREQ_MSG, 5818 brcmf_p2p_notify_rx_mgmt_p2p_probereq); 5819 brcmf_fweh_register(cfg->pub, BRCMF_E_P2P_DISC_LISTEN_COMPLETE, 5820 brcmf_p2p_notify_listen_complete); 5821 brcmf_fweh_register(cfg->pub, BRCMF_E_ACTION_FRAME_RX, 5822 brcmf_p2p_notify_action_frame_rx); 5823 brcmf_fweh_register(cfg->pub, BRCMF_E_ACTION_FRAME_COMPLETE, 5824 brcmf_p2p_notify_action_tx_complete); 5825 brcmf_fweh_register(cfg->pub, BRCMF_E_ACTION_FRAME_OFF_CHAN_COMPLETE, 5826 brcmf_p2p_notify_action_tx_complete); 5827 brcmf_fweh_register(cfg->pub, BRCMF_E_PSK_SUP, 5828 brcmf_notify_connect_status); 5829 } 5830 5831 static void brcmf_deinit_priv_mem(struct brcmf_cfg80211_info *cfg) 5832 { 5833 kfree(cfg->conf); 5834 cfg->conf = NULL; 5835 kfree(cfg->extra_buf); 5836 cfg->extra_buf = NULL; 5837 kfree(cfg->wowl.nd); 5838 cfg->wowl.nd = NULL; 5839 kfree(cfg->wowl.nd_info); 5840 cfg->wowl.nd_info = NULL; 5841 kfree(cfg->escan_info.escan_buf); 5842 cfg->escan_info.escan_buf = NULL; 5843 } 5844 5845 static s32 brcmf_init_priv_mem(struct brcmf_cfg80211_info *cfg) 5846 { 5847 cfg->conf = kzalloc(sizeof(*cfg->conf), GFP_KERNEL); 5848 if (!cfg->conf) 5849 goto init_priv_mem_out; 5850 cfg->extra_buf = kzalloc(WL_EXTRA_BUF_MAX, GFP_KERNEL); 5851 if (!cfg->extra_buf) 5852 goto init_priv_mem_out; 5853 cfg->wowl.nd = kzalloc(sizeof(*cfg->wowl.nd) + sizeof(u32), GFP_KERNEL); 5854 if (!cfg->wowl.nd) 5855 goto init_priv_mem_out; 5856 cfg->wowl.nd_info = kzalloc(sizeof(*cfg->wowl.nd_info) + 5857 sizeof(struct cfg80211_wowlan_nd_match *), 5858 GFP_KERNEL); 5859 if (!cfg->wowl.nd_info) 5860 goto init_priv_mem_out; 5861 cfg->escan_info.escan_buf = kzalloc(BRCMF_ESCAN_BUF_SIZE, GFP_KERNEL); 5862 if (!cfg->escan_info.escan_buf) 5863 goto init_priv_mem_out; 5864 5865 return 0; 5866 5867 init_priv_mem_out: 5868 brcmf_deinit_priv_mem(cfg); 5869 5870 return -ENOMEM; 5871 } 5872 5873 static s32 wl_init_priv(struct brcmf_cfg80211_info *cfg) 5874 { 5875 s32 err = 0; 5876 5877 cfg->scan_request = NULL; 5878 cfg->pwr_save = true; 5879 cfg->active_scan = true; /* we do active scan per default */ 5880 cfg->dongle_up = false; /* dongle is not up yet */ 5881 err = brcmf_init_priv_mem(cfg); 5882 if (err) 5883 return err; 5884 brcmf_register_event_handlers(cfg); 5885 mutex_init(&cfg->usr_sync); 5886 brcmf_init_escan(cfg); 5887 brcmf_init_conf(cfg->conf); 5888 init_completion(&cfg->vif_disabled); 5889 return err; 5890 } 5891 5892 static void wl_deinit_priv(struct brcmf_cfg80211_info *cfg) 5893 { 5894 cfg->dongle_up = false; /* dongle down */ 5895 brcmf_abort_scanning(cfg); 5896 brcmf_deinit_priv_mem(cfg); 5897 } 5898 5899 static void init_vif_event(struct brcmf_cfg80211_vif_event *event) 5900 { 5901 init_waitqueue_head(&event->vif_wq); 5902 spin_lock_init(&event->vif_event_lock); 5903 } 5904 5905 static s32 brcmf_dongle_roam(struct brcmf_if *ifp) 5906 { 5907 s32 err; 5908 u32 bcn_timeout; 5909 __le32 roamtrigger[2]; 5910 __le32 roam_delta[2]; 5911 5912 /* Configure beacon timeout value based upon roaming setting */ 5913 if (ifp->drvr->settings->roamoff) 5914 bcn_timeout = BRCMF_DEFAULT_BCN_TIMEOUT_ROAM_OFF; 5915 else 5916 bcn_timeout = BRCMF_DEFAULT_BCN_TIMEOUT_ROAM_ON; 5917 err = brcmf_fil_iovar_int_set(ifp, "bcn_timeout", bcn_timeout); 5918 if (err) { 5919 brcmf_err("bcn_timeout error (%d)\n", err); 5920 goto roam_setup_done; 5921 } 5922 5923 /* Enable/Disable built-in roaming to allow supplicant to take care of 5924 * roaming. 5925 */ 5926 brcmf_dbg(INFO, "Internal Roaming = %s\n", 5927 ifp->drvr->settings->roamoff ? "Off" : "On"); 5928 err = brcmf_fil_iovar_int_set(ifp, "roam_off", 5929 ifp->drvr->settings->roamoff); 5930 if (err) { 5931 brcmf_err("roam_off error (%d)\n", err); 5932 goto roam_setup_done; 5933 } 5934 5935 roamtrigger[0] = cpu_to_le32(WL_ROAM_TRIGGER_LEVEL); 5936 roamtrigger[1] = cpu_to_le32(BRCM_BAND_ALL); 5937 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_ROAM_TRIGGER, 5938 (void *)roamtrigger, sizeof(roamtrigger)); 5939 if (err) { 5940 brcmf_err("WLC_SET_ROAM_TRIGGER error (%d)\n", err); 5941 goto roam_setup_done; 5942 } 5943 5944 roam_delta[0] = cpu_to_le32(WL_ROAM_DELTA); 5945 roam_delta[1] = cpu_to_le32(BRCM_BAND_ALL); 5946 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_ROAM_DELTA, 5947 (void *)roam_delta, sizeof(roam_delta)); 5948 if (err) { 5949 brcmf_err("WLC_SET_ROAM_DELTA error (%d)\n", err); 5950 goto roam_setup_done; 5951 } 5952 5953 roam_setup_done: 5954 return err; 5955 } 5956 5957 static s32 5958 brcmf_dongle_scantime(struct brcmf_if *ifp) 5959 { 5960 s32 err = 0; 5961 5962 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_CHANNEL_TIME, 5963 BRCMF_SCAN_CHANNEL_TIME); 5964 if (err) { 5965 brcmf_err("Scan assoc time error (%d)\n", err); 5966 goto dongle_scantime_out; 5967 } 5968 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_UNASSOC_TIME, 5969 BRCMF_SCAN_UNASSOC_TIME); 5970 if (err) { 5971 brcmf_err("Scan unassoc time error (%d)\n", err); 5972 goto dongle_scantime_out; 5973 } 5974 5975 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_PASSIVE_TIME, 5976 BRCMF_SCAN_PASSIVE_TIME); 5977 if (err) { 5978 brcmf_err("Scan passive time error (%d)\n", err); 5979 goto dongle_scantime_out; 5980 } 5981 5982 dongle_scantime_out: 5983 return err; 5984 } 5985 5986 static void brcmf_update_bw40_channel_flag(struct ieee80211_channel *channel, 5987 struct brcmu_chan *ch) 5988 { 5989 u32 ht40_flag; 5990 5991 ht40_flag = channel->flags & IEEE80211_CHAN_NO_HT40; 5992 if (ch->sb == BRCMU_CHAN_SB_U) { 5993 if (ht40_flag == IEEE80211_CHAN_NO_HT40) 5994 channel->flags &= ~IEEE80211_CHAN_NO_HT40; 5995 channel->flags |= IEEE80211_CHAN_NO_HT40PLUS; 5996 } else { 5997 /* It should be one of 5998 * IEEE80211_CHAN_NO_HT40 or 5999 * IEEE80211_CHAN_NO_HT40PLUS 6000 */ 6001 channel->flags &= ~IEEE80211_CHAN_NO_HT40; 6002 if (ht40_flag == IEEE80211_CHAN_NO_HT40) 6003 channel->flags |= IEEE80211_CHAN_NO_HT40MINUS; 6004 } 6005 } 6006 6007 static int brcmf_construct_chaninfo(struct brcmf_cfg80211_info *cfg, 6008 u32 bw_cap[]) 6009 { 6010 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg)); 6011 struct ieee80211_supported_band *band; 6012 struct ieee80211_channel *channel; 6013 struct wiphy *wiphy; 6014 struct brcmf_chanspec_list *list; 6015 struct brcmu_chan ch; 6016 int err; 6017 u8 *pbuf; 6018 u32 i, j; 6019 u32 total; 6020 u32 chaninfo; 6021 6022 pbuf = kzalloc(BRCMF_DCMD_MEDLEN, GFP_KERNEL); 6023 6024 if (pbuf == NULL) 6025 return -ENOMEM; 6026 6027 list = (struct brcmf_chanspec_list *)pbuf; 6028 6029 err = brcmf_fil_iovar_data_get(ifp, "chanspecs", pbuf, 6030 BRCMF_DCMD_MEDLEN); 6031 if (err) { 6032 brcmf_err("get chanspecs error (%d)\n", err); 6033 goto fail_pbuf; 6034 } 6035 6036 wiphy = cfg_to_wiphy(cfg); 6037 band = wiphy->bands[NL80211_BAND_2GHZ]; 6038 if (band) 6039 for (i = 0; i < band->n_channels; i++) 6040 band->channels[i].flags = IEEE80211_CHAN_DISABLED; 6041 band = wiphy->bands[NL80211_BAND_5GHZ]; 6042 if (band) 6043 for (i = 0; i < band->n_channels; i++) 6044 band->channels[i].flags = IEEE80211_CHAN_DISABLED; 6045 6046 total = le32_to_cpu(list->count); 6047 for (i = 0; i < total; i++) { 6048 ch.chspec = (u16)le32_to_cpu(list->element[i]); 6049 cfg->d11inf.decchspec(&ch); 6050 6051 if (ch.band == BRCMU_CHAN_BAND_2G) { 6052 band = wiphy->bands[NL80211_BAND_2GHZ]; 6053 } else if (ch.band == BRCMU_CHAN_BAND_5G) { 6054 band = wiphy->bands[NL80211_BAND_5GHZ]; 6055 } else { 6056 brcmf_err("Invalid channel Spec. 0x%x.\n", ch.chspec); 6057 continue; 6058 } 6059 if (!band) 6060 continue; 6061 if (!(bw_cap[band->band] & WLC_BW_40MHZ_BIT) && 6062 ch.bw == BRCMU_CHAN_BW_40) 6063 continue; 6064 if (!(bw_cap[band->band] & WLC_BW_80MHZ_BIT) && 6065 ch.bw == BRCMU_CHAN_BW_80) 6066 continue; 6067 6068 channel = NULL; 6069 for (j = 0; j < band->n_channels; j++) { 6070 if (band->channels[j].hw_value == ch.control_ch_num) { 6071 channel = &band->channels[j]; 6072 break; 6073 } 6074 } 6075 if (!channel) { 6076 /* It seems firmware supports some channel we never 6077 * considered. Something new in IEEE standard? 6078 */ 6079 brcmf_err("Ignoring unexpected firmware channel %d\n", 6080 ch.control_ch_num); 6081 continue; 6082 } 6083 6084 if (channel->orig_flags & IEEE80211_CHAN_DISABLED) 6085 continue; 6086 6087 /* assuming the chanspecs order is HT20, 6088 * HT40 upper, HT40 lower, and VHT80. 6089 */ 6090 if (ch.bw == BRCMU_CHAN_BW_80) { 6091 channel->flags &= ~IEEE80211_CHAN_NO_80MHZ; 6092 } else if (ch.bw == BRCMU_CHAN_BW_40) { 6093 brcmf_update_bw40_channel_flag(channel, &ch); 6094 } else { 6095 /* enable the channel and disable other bandwidths 6096 * for now as mentioned order assure they are enabled 6097 * for subsequent chanspecs. 6098 */ 6099 channel->flags = IEEE80211_CHAN_NO_HT40 | 6100 IEEE80211_CHAN_NO_80MHZ; 6101 ch.bw = BRCMU_CHAN_BW_20; 6102 cfg->d11inf.encchspec(&ch); 6103 chaninfo = ch.chspec; 6104 err = brcmf_fil_bsscfg_int_get(ifp, "per_chan_info", 6105 &chaninfo); 6106 if (!err) { 6107 if (chaninfo & WL_CHAN_RADAR) 6108 channel->flags |= 6109 (IEEE80211_CHAN_RADAR | 6110 IEEE80211_CHAN_NO_IR); 6111 if (chaninfo & WL_CHAN_PASSIVE) 6112 channel->flags |= 6113 IEEE80211_CHAN_NO_IR; 6114 } 6115 } 6116 } 6117 6118 fail_pbuf: 6119 kfree(pbuf); 6120 return err; 6121 } 6122 6123 static int brcmf_enable_bw40_2g(struct brcmf_cfg80211_info *cfg) 6124 { 6125 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg)); 6126 struct ieee80211_supported_band *band; 6127 struct brcmf_fil_bwcap_le band_bwcap; 6128 struct brcmf_chanspec_list *list; 6129 u8 *pbuf; 6130 u32 val; 6131 int err; 6132 struct brcmu_chan ch; 6133 u32 num_chan; 6134 int i, j; 6135 6136 /* verify support for bw_cap command */ 6137 val = WLC_BAND_5G; 6138 err = brcmf_fil_iovar_int_get(ifp, "bw_cap", &val); 6139 6140 if (!err) { 6141 /* only set 2G bandwidth using bw_cap command */ 6142 band_bwcap.band = cpu_to_le32(WLC_BAND_2G); 6143 band_bwcap.bw_cap = cpu_to_le32(WLC_BW_CAP_40MHZ); 6144 err = brcmf_fil_iovar_data_set(ifp, "bw_cap", &band_bwcap, 6145 sizeof(band_bwcap)); 6146 } else { 6147 brcmf_dbg(INFO, "fallback to mimo_bw_cap\n"); 6148 val = WLC_N_BW_40ALL; 6149 err = brcmf_fil_iovar_int_set(ifp, "mimo_bw_cap", val); 6150 } 6151 6152 if (!err) { 6153 /* update channel info in 2G band */ 6154 pbuf = kzalloc(BRCMF_DCMD_MEDLEN, GFP_KERNEL); 6155 6156 if (pbuf == NULL) 6157 return -ENOMEM; 6158 6159 ch.band = BRCMU_CHAN_BAND_2G; 6160 ch.bw = BRCMU_CHAN_BW_40; 6161 ch.sb = BRCMU_CHAN_SB_NONE; 6162 ch.chnum = 0; 6163 cfg->d11inf.encchspec(&ch); 6164 6165 /* pass encoded chanspec in query */ 6166 *(__le16 *)pbuf = cpu_to_le16(ch.chspec); 6167 6168 err = brcmf_fil_iovar_data_get(ifp, "chanspecs", pbuf, 6169 BRCMF_DCMD_MEDLEN); 6170 if (err) { 6171 brcmf_err("get chanspecs error (%d)\n", err); 6172 kfree(pbuf); 6173 return err; 6174 } 6175 6176 band = cfg_to_wiphy(cfg)->bands[NL80211_BAND_2GHZ]; 6177 list = (struct brcmf_chanspec_list *)pbuf; 6178 num_chan = le32_to_cpu(list->count); 6179 for (i = 0; i < num_chan; i++) { 6180 ch.chspec = (u16)le32_to_cpu(list->element[i]); 6181 cfg->d11inf.decchspec(&ch); 6182 if (WARN_ON(ch.band != BRCMU_CHAN_BAND_2G)) 6183 continue; 6184 if (WARN_ON(ch.bw != BRCMU_CHAN_BW_40)) 6185 continue; 6186 for (j = 0; j < band->n_channels; j++) { 6187 if (band->channels[j].hw_value == ch.control_ch_num) 6188 break; 6189 } 6190 if (WARN_ON(j == band->n_channels)) 6191 continue; 6192 6193 brcmf_update_bw40_channel_flag(&band->channels[j], &ch); 6194 } 6195 kfree(pbuf); 6196 } 6197 return err; 6198 } 6199 6200 static void brcmf_get_bwcap(struct brcmf_if *ifp, u32 bw_cap[]) 6201 { 6202 u32 band, mimo_bwcap; 6203 int err; 6204 6205 band = WLC_BAND_2G; 6206 err = brcmf_fil_iovar_int_get(ifp, "bw_cap", &band); 6207 if (!err) { 6208 bw_cap[NL80211_BAND_2GHZ] = band; 6209 band = WLC_BAND_5G; 6210 err = brcmf_fil_iovar_int_get(ifp, "bw_cap", &band); 6211 if (!err) { 6212 bw_cap[NL80211_BAND_5GHZ] = band; 6213 return; 6214 } 6215 WARN_ON(1); 6216 return; 6217 } 6218 brcmf_dbg(INFO, "fallback to mimo_bw_cap info\n"); 6219 mimo_bwcap = 0; 6220 err = brcmf_fil_iovar_int_get(ifp, "mimo_bw_cap", &mimo_bwcap); 6221 if (err) 6222 /* assume 20MHz if firmware does not give a clue */ 6223 mimo_bwcap = WLC_N_BW_20ALL; 6224 6225 switch (mimo_bwcap) { 6226 case WLC_N_BW_40ALL: 6227 bw_cap[NL80211_BAND_2GHZ] |= WLC_BW_40MHZ_BIT; 6228 /* fall-thru */ 6229 case WLC_N_BW_20IN2G_40IN5G: 6230 bw_cap[NL80211_BAND_5GHZ] |= WLC_BW_40MHZ_BIT; 6231 /* fall-thru */ 6232 case WLC_N_BW_20ALL: 6233 bw_cap[NL80211_BAND_2GHZ] |= WLC_BW_20MHZ_BIT; 6234 bw_cap[NL80211_BAND_5GHZ] |= WLC_BW_20MHZ_BIT; 6235 break; 6236 default: 6237 brcmf_err("invalid mimo_bw_cap value\n"); 6238 } 6239 } 6240 6241 static void brcmf_update_ht_cap(struct ieee80211_supported_band *band, 6242 u32 bw_cap[2], u32 nchain) 6243 { 6244 band->ht_cap.ht_supported = true; 6245 if (bw_cap[band->band] & WLC_BW_40MHZ_BIT) { 6246 band->ht_cap.cap |= IEEE80211_HT_CAP_SGI_40; 6247 band->ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; 6248 } 6249 band->ht_cap.cap |= IEEE80211_HT_CAP_SGI_20; 6250 band->ht_cap.cap |= IEEE80211_HT_CAP_DSSSCCK40; 6251 band->ht_cap.ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K; 6252 band->ht_cap.ampdu_density = IEEE80211_HT_MPDU_DENSITY_16; 6253 memset(band->ht_cap.mcs.rx_mask, 0xff, nchain); 6254 band->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED; 6255 } 6256 6257 static __le16 brcmf_get_mcs_map(u32 nchain, enum ieee80211_vht_mcs_support supp) 6258 { 6259 u16 mcs_map; 6260 int i; 6261 6262 for (i = 0, mcs_map = 0xFFFF; i < nchain; i++) 6263 mcs_map = (mcs_map << 2) | supp; 6264 6265 return cpu_to_le16(mcs_map); 6266 } 6267 6268 static void brcmf_update_vht_cap(struct ieee80211_supported_band *band, 6269 u32 bw_cap[2], u32 nchain, u32 txstreams, 6270 u32 txbf_bfe_cap, u32 txbf_bfr_cap) 6271 { 6272 __le16 mcs_map; 6273 6274 /* not allowed in 2.4G band */ 6275 if (band->band == NL80211_BAND_2GHZ) 6276 return; 6277 6278 band->vht_cap.vht_supported = true; 6279 /* 80MHz is mandatory */ 6280 band->vht_cap.cap |= IEEE80211_VHT_CAP_SHORT_GI_80; 6281 if (bw_cap[band->band] & WLC_BW_160MHZ_BIT) { 6282 band->vht_cap.cap |= IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ; 6283 band->vht_cap.cap |= IEEE80211_VHT_CAP_SHORT_GI_160; 6284 } 6285 /* all support 256-QAM */ 6286 mcs_map = brcmf_get_mcs_map(nchain, IEEE80211_VHT_MCS_SUPPORT_0_9); 6287 band->vht_cap.vht_mcs.rx_mcs_map = mcs_map; 6288 band->vht_cap.vht_mcs.tx_mcs_map = mcs_map; 6289 6290 /* Beamforming support information */ 6291 if (txbf_bfe_cap & BRCMF_TXBF_SU_BFE_CAP) 6292 band->vht_cap.cap |= IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE; 6293 if (txbf_bfe_cap & BRCMF_TXBF_MU_BFE_CAP) 6294 band->vht_cap.cap |= IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE; 6295 if (txbf_bfr_cap & BRCMF_TXBF_SU_BFR_CAP) 6296 band->vht_cap.cap |= IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE; 6297 if (txbf_bfr_cap & BRCMF_TXBF_MU_BFR_CAP) 6298 band->vht_cap.cap |= IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE; 6299 6300 if ((txbf_bfe_cap || txbf_bfr_cap) && (txstreams > 1)) { 6301 band->vht_cap.cap |= 6302 (2 << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT); 6303 band->vht_cap.cap |= ((txstreams - 1) << 6304 IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT); 6305 band->vht_cap.cap |= 6306 IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB; 6307 } 6308 } 6309 6310 static int brcmf_setup_wiphybands(struct wiphy *wiphy) 6311 { 6312 struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy); 6313 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg)); 6314 u32 nmode = 0; 6315 u32 vhtmode = 0; 6316 u32 bw_cap[2] = { WLC_BW_20MHZ_BIT, WLC_BW_20MHZ_BIT }; 6317 u32 rxchain; 6318 u32 nchain; 6319 int err; 6320 s32 i; 6321 struct ieee80211_supported_band *band; 6322 u32 txstreams = 0; 6323 u32 txbf_bfe_cap = 0; 6324 u32 txbf_bfr_cap = 0; 6325 6326 (void)brcmf_fil_iovar_int_get(ifp, "vhtmode", &vhtmode); 6327 err = brcmf_fil_iovar_int_get(ifp, "nmode", &nmode); 6328 if (err) { 6329 brcmf_err("nmode error (%d)\n", err); 6330 } else { 6331 brcmf_get_bwcap(ifp, bw_cap); 6332 } 6333 brcmf_dbg(INFO, "nmode=%d, vhtmode=%d, bw_cap=(%d, %d)\n", 6334 nmode, vhtmode, bw_cap[NL80211_BAND_2GHZ], 6335 bw_cap[NL80211_BAND_5GHZ]); 6336 6337 err = brcmf_fil_iovar_int_get(ifp, "rxchain", &rxchain); 6338 if (err) { 6339 brcmf_err("rxchain error (%d)\n", err); 6340 nchain = 1; 6341 } else { 6342 for (nchain = 0; rxchain; nchain++) 6343 rxchain = rxchain & (rxchain - 1); 6344 } 6345 brcmf_dbg(INFO, "nchain=%d\n", nchain); 6346 6347 err = brcmf_construct_chaninfo(cfg, bw_cap); 6348 if (err) { 6349 brcmf_err("brcmf_construct_chaninfo failed (%d)\n", err); 6350 return err; 6351 } 6352 6353 if (vhtmode) { 6354 (void)brcmf_fil_iovar_int_get(ifp, "txstreams", &txstreams); 6355 (void)brcmf_fil_iovar_int_get(ifp, "txbf_bfe_cap", 6356 &txbf_bfe_cap); 6357 (void)brcmf_fil_iovar_int_get(ifp, "txbf_bfr_cap", 6358 &txbf_bfr_cap); 6359 } 6360 6361 wiphy = cfg_to_wiphy(cfg); 6362 for (i = 0; i < ARRAY_SIZE(wiphy->bands); i++) { 6363 band = wiphy->bands[i]; 6364 if (band == NULL) 6365 continue; 6366 6367 if (nmode) 6368 brcmf_update_ht_cap(band, bw_cap, nchain); 6369 if (vhtmode) 6370 brcmf_update_vht_cap(band, bw_cap, nchain, txstreams, 6371 txbf_bfe_cap, txbf_bfr_cap); 6372 } 6373 6374 return 0; 6375 } 6376 6377 static const struct ieee80211_txrx_stypes 6378 brcmf_txrx_stypes[NUM_NL80211_IFTYPES] = { 6379 [NL80211_IFTYPE_STATION] = { 6380 .tx = 0xffff, 6381 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 6382 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) 6383 }, 6384 [NL80211_IFTYPE_P2P_CLIENT] = { 6385 .tx = 0xffff, 6386 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 6387 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) 6388 }, 6389 [NL80211_IFTYPE_P2P_GO] = { 6390 .tx = 0xffff, 6391 .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) | 6392 BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | 6393 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | 6394 BIT(IEEE80211_STYPE_DISASSOC >> 4) | 6395 BIT(IEEE80211_STYPE_AUTH >> 4) | 6396 BIT(IEEE80211_STYPE_DEAUTH >> 4) | 6397 BIT(IEEE80211_STYPE_ACTION >> 4) 6398 }, 6399 [NL80211_IFTYPE_P2P_DEVICE] = { 6400 .tx = 0xffff, 6401 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 6402 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) 6403 } 6404 }; 6405 6406 /** 6407 * brcmf_setup_ifmodes() - determine interface modes and combinations. 6408 * 6409 * @wiphy: wiphy object. 6410 * @ifp: interface object needed for feat module api. 6411 * 6412 * The interface modes and combinations are determined dynamically here 6413 * based on firmware functionality. 6414 * 6415 * no p2p and no mbss: 6416 * 6417 * #STA <= 1, #AP <= 1, channels = 1, 2 total 6418 * 6419 * no p2p and mbss: 6420 * 6421 * #STA <= 1, #AP <= 1, channels = 1, 2 total 6422 * #AP <= 4, matching BI, channels = 1, 4 total 6423 * 6424 * p2p, no mchan, and mbss: 6425 * 6426 * #STA <= 1, #P2P-DEV <= 1, #{P2P-CL, P2P-GO} <= 1, channels = 1, 3 total 6427 * #STA <= 1, #P2P-DEV <= 1, #AP <= 1, #P2P-CL <= 1, channels = 1, 4 total 6428 * #AP <= 4, matching BI, channels = 1, 4 total 6429 * 6430 * p2p, mchan, and mbss: 6431 * 6432 * #STA <= 1, #P2P-DEV <= 1, #{P2P-CL, P2P-GO} <= 1, channels = 2, 3 total 6433 * #STA <= 1, #P2P-DEV <= 1, #AP <= 1, #P2P-CL <= 1, channels = 1, 4 total 6434 * #AP <= 4, matching BI, channels = 1, 4 total 6435 */ 6436 static int brcmf_setup_ifmodes(struct wiphy *wiphy, struct brcmf_if *ifp) 6437 { 6438 struct ieee80211_iface_combination *combo = NULL; 6439 struct ieee80211_iface_limit *c0_limits = NULL; 6440 struct ieee80211_iface_limit *p2p_limits = NULL; 6441 struct ieee80211_iface_limit *mbss_limits = NULL; 6442 bool mbss, p2p; 6443 int i, c, n_combos; 6444 6445 mbss = brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MBSS); 6446 p2p = brcmf_feat_is_enabled(ifp, BRCMF_FEAT_P2P); 6447 6448 n_combos = 1 + !!p2p + !!mbss; 6449 combo = kcalloc(n_combos, sizeof(*combo), GFP_KERNEL); 6450 if (!combo) 6451 goto err; 6452 6453 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 6454 BIT(NL80211_IFTYPE_ADHOC) | 6455 BIT(NL80211_IFTYPE_AP); 6456 6457 c = 0; 6458 i = 0; 6459 c0_limits = kcalloc(p2p ? 3 : 2, sizeof(*c0_limits), GFP_KERNEL); 6460 if (!c0_limits) 6461 goto err; 6462 c0_limits[i].max = 1; 6463 c0_limits[i++].types = BIT(NL80211_IFTYPE_STATION); 6464 if (p2p) { 6465 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MCHAN)) 6466 combo[c].num_different_channels = 2; 6467 else 6468 combo[c].num_different_channels = 1; 6469 wiphy->interface_modes |= BIT(NL80211_IFTYPE_P2P_CLIENT) | 6470 BIT(NL80211_IFTYPE_P2P_GO) | 6471 BIT(NL80211_IFTYPE_P2P_DEVICE); 6472 c0_limits[i].max = 1; 6473 c0_limits[i++].types = BIT(NL80211_IFTYPE_P2P_DEVICE); 6474 c0_limits[i].max = 1; 6475 c0_limits[i++].types = BIT(NL80211_IFTYPE_P2P_CLIENT) | 6476 BIT(NL80211_IFTYPE_P2P_GO); 6477 } else { 6478 combo[c].num_different_channels = 1; 6479 c0_limits[i].max = 1; 6480 c0_limits[i++].types = BIT(NL80211_IFTYPE_AP); 6481 } 6482 combo[c].max_interfaces = i; 6483 combo[c].n_limits = i; 6484 combo[c].limits = c0_limits; 6485 6486 if (p2p) { 6487 c++; 6488 i = 0; 6489 p2p_limits = kcalloc(4, sizeof(*p2p_limits), GFP_KERNEL); 6490 if (!p2p_limits) 6491 goto err; 6492 p2p_limits[i].max = 1; 6493 p2p_limits[i++].types = BIT(NL80211_IFTYPE_STATION); 6494 p2p_limits[i].max = 1; 6495 p2p_limits[i++].types = BIT(NL80211_IFTYPE_AP); 6496 p2p_limits[i].max = 1; 6497 p2p_limits[i++].types = BIT(NL80211_IFTYPE_P2P_CLIENT); 6498 p2p_limits[i].max = 1; 6499 p2p_limits[i++].types = BIT(NL80211_IFTYPE_P2P_DEVICE); 6500 combo[c].num_different_channels = 1; 6501 combo[c].max_interfaces = i; 6502 combo[c].n_limits = i; 6503 combo[c].limits = p2p_limits; 6504 } 6505 6506 if (mbss) { 6507 c++; 6508 i = 0; 6509 mbss_limits = kcalloc(1, sizeof(*mbss_limits), GFP_KERNEL); 6510 if (!mbss_limits) 6511 goto err; 6512 mbss_limits[i].max = 4; 6513 mbss_limits[i++].types = BIT(NL80211_IFTYPE_AP); 6514 combo[c].beacon_int_infra_match = true; 6515 combo[c].num_different_channels = 1; 6516 combo[c].max_interfaces = 4; 6517 combo[c].n_limits = i; 6518 combo[c].limits = mbss_limits; 6519 } 6520 6521 wiphy->n_iface_combinations = n_combos; 6522 wiphy->iface_combinations = combo; 6523 return 0; 6524 6525 err: 6526 kfree(c0_limits); 6527 kfree(p2p_limits); 6528 kfree(mbss_limits); 6529 kfree(combo); 6530 return -ENOMEM; 6531 } 6532 6533 #ifdef CONFIG_PM 6534 static const struct wiphy_wowlan_support brcmf_wowlan_support = { 6535 .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT, 6536 .n_patterns = BRCMF_WOWL_MAXPATTERNS, 6537 .pattern_max_len = BRCMF_WOWL_MAXPATTERNSIZE, 6538 .pattern_min_len = 1, 6539 .max_pkt_offset = 1500, 6540 }; 6541 #endif 6542 6543 static void brcmf_wiphy_wowl_params(struct wiphy *wiphy, struct brcmf_if *ifp) 6544 { 6545 #ifdef CONFIG_PM 6546 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 6547 struct wiphy_wowlan_support *wowl; 6548 6549 wowl = kmemdup(&brcmf_wowlan_support, sizeof(brcmf_wowlan_support), 6550 GFP_KERNEL); 6551 if (!wowl) { 6552 brcmf_err("only support basic wowlan features\n"); 6553 wiphy->wowlan = &brcmf_wowlan_support; 6554 return; 6555 } 6556 6557 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_PNO)) { 6558 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_WOWL_ND)) { 6559 wowl->flags |= WIPHY_WOWLAN_NET_DETECT; 6560 wowl->max_nd_match_sets = BRCMF_PNO_MAX_PFN_COUNT; 6561 init_waitqueue_head(&cfg->wowl.nd_data_wait); 6562 } 6563 } 6564 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_WOWL_GTK)) { 6565 wowl->flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY; 6566 wowl->flags |= WIPHY_WOWLAN_GTK_REKEY_FAILURE; 6567 } 6568 6569 wiphy->wowlan = wowl; 6570 #endif 6571 } 6572 6573 static int brcmf_setup_wiphy(struct wiphy *wiphy, struct brcmf_if *ifp) 6574 { 6575 struct brcmf_pub *drvr = ifp->drvr; 6576 const struct ieee80211_iface_combination *combo; 6577 struct ieee80211_supported_band *band; 6578 u16 max_interfaces = 0; 6579 bool gscan; 6580 __le32 bandlist[3]; 6581 u32 n_bands; 6582 int err, i; 6583 6584 wiphy->max_scan_ssids = WL_NUM_SCAN_MAX; 6585 wiphy->max_scan_ie_len = BRCMF_SCAN_IE_LEN_MAX; 6586 wiphy->max_num_pmkids = BRCMF_MAXPMKID; 6587 6588 err = brcmf_setup_ifmodes(wiphy, ifp); 6589 if (err) 6590 return err; 6591 6592 for (i = 0, combo = wiphy->iface_combinations; 6593 i < wiphy->n_iface_combinations; i++, combo++) { 6594 max_interfaces = max(max_interfaces, combo->max_interfaces); 6595 } 6596 6597 for (i = 0; i < max_interfaces && i < ARRAY_SIZE(drvr->addresses); 6598 i++) { 6599 u8 *addr = drvr->addresses[i].addr; 6600 6601 memcpy(addr, drvr->mac, ETH_ALEN); 6602 if (i) { 6603 addr[0] |= BIT(1); 6604 addr[ETH_ALEN - 1] ^= i; 6605 } 6606 } 6607 wiphy->addresses = drvr->addresses; 6608 wiphy->n_addresses = i; 6609 6610 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; 6611 wiphy->cipher_suites = brcmf_cipher_suites; 6612 wiphy->n_cipher_suites = ARRAY_SIZE(brcmf_cipher_suites); 6613 if (!brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MFP)) 6614 wiphy->n_cipher_suites--; 6615 wiphy->bss_select_support = BIT(NL80211_BSS_SELECT_ATTR_RSSI) | 6616 BIT(NL80211_BSS_SELECT_ATTR_BAND_PREF) | 6617 BIT(NL80211_BSS_SELECT_ATTR_RSSI_ADJUST); 6618 6619 wiphy->flags |= WIPHY_FLAG_NETNS_OK | 6620 WIPHY_FLAG_PS_ON_BY_DEFAULT | 6621 WIPHY_FLAG_OFFCHAN_TX | 6622 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL; 6623 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_TDLS)) 6624 wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS; 6625 if (!ifp->drvr->settings->roamoff) 6626 wiphy->flags |= WIPHY_FLAG_SUPPORTS_FW_ROAM; 6627 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_FWSUP)) { 6628 wiphy_ext_feature_set(wiphy, 6629 NL80211_EXT_FEATURE_4WAY_HANDSHAKE_STA_PSK); 6630 wiphy_ext_feature_set(wiphy, 6631 NL80211_EXT_FEATURE_4WAY_HANDSHAKE_STA_1X); 6632 } 6633 wiphy->mgmt_stypes = brcmf_txrx_stypes; 6634 wiphy->max_remain_on_channel_duration = 5000; 6635 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_PNO)) { 6636 gscan = brcmf_feat_is_enabled(ifp, BRCMF_FEAT_GSCAN); 6637 brcmf_pno_wiphy_params(wiphy, gscan); 6638 } 6639 /* vendor commands/events support */ 6640 wiphy->vendor_commands = brcmf_vendor_cmds; 6641 wiphy->n_vendor_commands = BRCMF_VNDR_CMDS_LAST - 1; 6642 6643 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_WOWL)) 6644 brcmf_wiphy_wowl_params(wiphy, ifp); 6645 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BANDLIST, &bandlist, 6646 sizeof(bandlist)); 6647 if (err) { 6648 brcmf_err("could not obtain band info: err=%d\n", err); 6649 return err; 6650 } 6651 /* first entry in bandlist is number of bands */ 6652 n_bands = le32_to_cpu(bandlist[0]); 6653 for (i = 1; i <= n_bands && i < ARRAY_SIZE(bandlist); i++) { 6654 if (bandlist[i] == cpu_to_le32(WLC_BAND_2G)) { 6655 band = kmemdup(&__wl_band_2ghz, sizeof(__wl_band_2ghz), 6656 GFP_KERNEL); 6657 if (!band) 6658 return -ENOMEM; 6659 6660 band->channels = kmemdup(&__wl_2ghz_channels, 6661 sizeof(__wl_2ghz_channels), 6662 GFP_KERNEL); 6663 if (!band->channels) { 6664 kfree(band); 6665 return -ENOMEM; 6666 } 6667 6668 band->n_channels = ARRAY_SIZE(__wl_2ghz_channels); 6669 wiphy->bands[NL80211_BAND_2GHZ] = band; 6670 } 6671 if (bandlist[i] == cpu_to_le32(WLC_BAND_5G)) { 6672 band = kmemdup(&__wl_band_5ghz, sizeof(__wl_band_5ghz), 6673 GFP_KERNEL); 6674 if (!band) 6675 return -ENOMEM; 6676 6677 band->channels = kmemdup(&__wl_5ghz_channels, 6678 sizeof(__wl_5ghz_channels), 6679 GFP_KERNEL); 6680 if (!band->channels) { 6681 kfree(band); 6682 return -ENOMEM; 6683 } 6684 6685 band->n_channels = ARRAY_SIZE(__wl_5ghz_channels); 6686 wiphy->bands[NL80211_BAND_5GHZ] = band; 6687 } 6688 } 6689 6690 wiphy_read_of_freq_limits(wiphy); 6691 6692 return 0; 6693 } 6694 6695 static s32 brcmf_config_dongle(struct brcmf_cfg80211_info *cfg) 6696 { 6697 struct net_device *ndev; 6698 struct wireless_dev *wdev; 6699 struct brcmf_if *ifp; 6700 s32 power_mode; 6701 s32 err = 0; 6702 6703 if (cfg->dongle_up) 6704 return err; 6705 6706 ndev = cfg_to_ndev(cfg); 6707 wdev = ndev->ieee80211_ptr; 6708 ifp = netdev_priv(ndev); 6709 6710 /* make sure RF is ready for work */ 6711 brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 0); 6712 6713 brcmf_dongle_scantime(ifp); 6714 6715 power_mode = cfg->pwr_save ? PM_FAST : PM_OFF; 6716 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM, power_mode); 6717 if (err) 6718 goto default_conf_out; 6719 brcmf_dbg(INFO, "power save set to %s\n", 6720 (power_mode ? "enabled" : "disabled")); 6721 6722 err = brcmf_dongle_roam(ifp); 6723 if (err) 6724 goto default_conf_out; 6725 err = brcmf_cfg80211_change_iface(wdev->wiphy, ndev, wdev->iftype, 6726 NULL); 6727 if (err) 6728 goto default_conf_out; 6729 6730 brcmf_configure_arp_nd_offload(ifp, true); 6731 6732 cfg->dongle_up = true; 6733 default_conf_out: 6734 6735 return err; 6736 6737 } 6738 6739 static s32 __brcmf_cfg80211_up(struct brcmf_if *ifp) 6740 { 6741 set_bit(BRCMF_VIF_STATUS_READY, &ifp->vif->sme_state); 6742 6743 return brcmf_config_dongle(ifp->drvr->config); 6744 } 6745 6746 static s32 __brcmf_cfg80211_down(struct brcmf_if *ifp) 6747 { 6748 struct brcmf_cfg80211_info *cfg = ifp->drvr->config; 6749 6750 /* 6751 * While going down, if associated with AP disassociate 6752 * from AP to save power 6753 */ 6754 if (check_vif_up(ifp->vif)) { 6755 brcmf_link_down(ifp->vif, WLAN_REASON_UNSPECIFIED); 6756 6757 /* Make sure WPA_Supplicant receives all the event 6758 generated due to DISASSOC call to the fw to keep 6759 the state fw and WPA_Supplicant state consistent 6760 */ 6761 brcmf_delay(500); 6762 } 6763 6764 brcmf_abort_scanning(cfg); 6765 clear_bit(BRCMF_VIF_STATUS_READY, &ifp->vif->sme_state); 6766 6767 return 0; 6768 } 6769 6770 s32 brcmf_cfg80211_up(struct net_device *ndev) 6771 { 6772 struct brcmf_if *ifp = netdev_priv(ndev); 6773 struct brcmf_cfg80211_info *cfg = ifp->drvr->config; 6774 s32 err = 0; 6775 6776 mutex_lock(&cfg->usr_sync); 6777 err = __brcmf_cfg80211_up(ifp); 6778 mutex_unlock(&cfg->usr_sync); 6779 6780 return err; 6781 } 6782 6783 s32 brcmf_cfg80211_down(struct net_device *ndev) 6784 { 6785 struct brcmf_if *ifp = netdev_priv(ndev); 6786 struct brcmf_cfg80211_info *cfg = ifp->drvr->config; 6787 s32 err = 0; 6788 6789 mutex_lock(&cfg->usr_sync); 6790 err = __brcmf_cfg80211_down(ifp); 6791 mutex_unlock(&cfg->usr_sync); 6792 6793 return err; 6794 } 6795 6796 enum nl80211_iftype brcmf_cfg80211_get_iftype(struct brcmf_if *ifp) 6797 { 6798 struct wireless_dev *wdev = &ifp->vif->wdev; 6799 6800 return wdev->iftype; 6801 } 6802 6803 bool brcmf_get_vif_state_any(struct brcmf_cfg80211_info *cfg, 6804 unsigned long state) 6805 { 6806 struct brcmf_cfg80211_vif *vif; 6807 6808 list_for_each_entry(vif, &cfg->vif_list, list) { 6809 if (test_bit(state, &vif->sme_state)) 6810 return true; 6811 } 6812 return false; 6813 } 6814 6815 static inline bool vif_event_equals(struct brcmf_cfg80211_vif_event *event, 6816 u8 action) 6817 { 6818 u8 evt_action; 6819 6820 spin_lock(&event->vif_event_lock); 6821 evt_action = event->action; 6822 spin_unlock(&event->vif_event_lock); 6823 return evt_action == action; 6824 } 6825 6826 void brcmf_cfg80211_arm_vif_event(struct brcmf_cfg80211_info *cfg, 6827 struct brcmf_cfg80211_vif *vif) 6828 { 6829 struct brcmf_cfg80211_vif_event *event = &cfg->vif_event; 6830 6831 spin_lock(&event->vif_event_lock); 6832 event->vif = vif; 6833 event->action = 0; 6834 spin_unlock(&event->vif_event_lock); 6835 } 6836 6837 bool brcmf_cfg80211_vif_event_armed(struct brcmf_cfg80211_info *cfg) 6838 { 6839 struct brcmf_cfg80211_vif_event *event = &cfg->vif_event; 6840 bool armed; 6841 6842 spin_lock(&event->vif_event_lock); 6843 armed = event->vif != NULL; 6844 spin_unlock(&event->vif_event_lock); 6845 6846 return armed; 6847 } 6848 6849 int brcmf_cfg80211_wait_vif_event(struct brcmf_cfg80211_info *cfg, 6850 u8 action, ulong timeout) 6851 { 6852 struct brcmf_cfg80211_vif_event *event = &cfg->vif_event; 6853 6854 return wait_event_timeout(event->vif_wq, 6855 vif_event_equals(event, action), timeout); 6856 } 6857 6858 static s32 brcmf_translate_country_code(struct brcmf_pub *drvr, char alpha2[2], 6859 struct brcmf_fil_country_le *ccreq) 6860 { 6861 struct brcmfmac_pd_cc *country_codes; 6862 struct brcmfmac_pd_cc_entry *cc; 6863 s32 found_index; 6864 int i; 6865 6866 country_codes = drvr->settings->country_codes; 6867 if (!country_codes) { 6868 brcmf_dbg(TRACE, "No country codes configured for device\n"); 6869 return -EINVAL; 6870 } 6871 6872 if ((alpha2[0] == ccreq->country_abbrev[0]) && 6873 (alpha2[1] == ccreq->country_abbrev[1])) { 6874 brcmf_dbg(TRACE, "Country code already set\n"); 6875 return -EAGAIN; 6876 } 6877 6878 found_index = -1; 6879 for (i = 0; i < country_codes->table_size; i++) { 6880 cc = &country_codes->table[i]; 6881 if ((cc->iso3166[0] == '\0') && (found_index == -1)) 6882 found_index = i; 6883 if ((cc->iso3166[0] == alpha2[0]) && 6884 (cc->iso3166[1] == alpha2[1])) { 6885 found_index = i; 6886 break; 6887 } 6888 } 6889 if (found_index == -1) { 6890 brcmf_dbg(TRACE, "No country code match found\n"); 6891 return -EINVAL; 6892 } 6893 memset(ccreq, 0, sizeof(*ccreq)); 6894 ccreq->rev = cpu_to_le32(country_codes->table[found_index].rev); 6895 memcpy(ccreq->ccode, country_codes->table[found_index].cc, 6896 BRCMF_COUNTRY_BUF_SZ); 6897 ccreq->country_abbrev[0] = alpha2[0]; 6898 ccreq->country_abbrev[1] = alpha2[1]; 6899 ccreq->country_abbrev[2] = 0; 6900 6901 return 0; 6902 } 6903 6904 static void brcmf_cfg80211_reg_notifier(struct wiphy *wiphy, 6905 struct regulatory_request *req) 6906 { 6907 struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy); 6908 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg)); 6909 struct brcmf_fil_country_le ccreq; 6910 s32 err; 6911 int i; 6912 6913 /* The country code gets set to "00" by default at boot, ignore */ 6914 if (req->alpha2[0] == '0' && req->alpha2[1] == '0') 6915 return; 6916 6917 /* ignore non-ISO3166 country codes */ 6918 for (i = 0; i < sizeof(req->alpha2); i++) 6919 if (req->alpha2[i] < 'A' || req->alpha2[i] > 'Z') { 6920 brcmf_err("not an ISO3166 code (0x%02x 0x%02x)\n", 6921 req->alpha2[0], req->alpha2[1]); 6922 return; 6923 } 6924 6925 brcmf_dbg(TRACE, "Enter: initiator=%d, alpha=%c%c\n", req->initiator, 6926 req->alpha2[0], req->alpha2[1]); 6927 6928 err = brcmf_fil_iovar_data_get(ifp, "country", &ccreq, sizeof(ccreq)); 6929 if (err) { 6930 brcmf_err("Country code iovar returned err = %d\n", err); 6931 return; 6932 } 6933 6934 err = brcmf_translate_country_code(ifp->drvr, req->alpha2, &ccreq); 6935 if (err) 6936 return; 6937 6938 err = brcmf_fil_iovar_data_set(ifp, "country", &ccreq, sizeof(ccreq)); 6939 if (err) { 6940 brcmf_err("Firmware rejected country setting\n"); 6941 return; 6942 } 6943 brcmf_setup_wiphybands(wiphy); 6944 } 6945 6946 static void brcmf_free_wiphy(struct wiphy *wiphy) 6947 { 6948 int i; 6949 6950 if (!wiphy) 6951 return; 6952 6953 if (wiphy->iface_combinations) { 6954 for (i = 0; i < wiphy->n_iface_combinations; i++) 6955 kfree(wiphy->iface_combinations[i].limits); 6956 } 6957 kfree(wiphy->iface_combinations); 6958 if (wiphy->bands[NL80211_BAND_2GHZ]) { 6959 kfree(wiphy->bands[NL80211_BAND_2GHZ]->channels); 6960 kfree(wiphy->bands[NL80211_BAND_2GHZ]); 6961 } 6962 if (wiphy->bands[NL80211_BAND_5GHZ]) { 6963 kfree(wiphy->bands[NL80211_BAND_5GHZ]->channels); 6964 kfree(wiphy->bands[NL80211_BAND_5GHZ]); 6965 } 6966 #if IS_ENABLED(CONFIG_PM) 6967 if (wiphy->wowlan != &brcmf_wowlan_support) 6968 kfree(wiphy->wowlan); 6969 #endif 6970 wiphy_free(wiphy); 6971 } 6972 6973 struct brcmf_cfg80211_info *brcmf_cfg80211_attach(struct brcmf_pub *drvr, 6974 struct device *busdev, 6975 bool p2pdev_forced) 6976 { 6977 struct net_device *ndev = brcmf_get_ifp(drvr, 0)->ndev; 6978 struct brcmf_cfg80211_info *cfg; 6979 struct wiphy *wiphy; 6980 struct cfg80211_ops *ops; 6981 struct brcmf_cfg80211_vif *vif; 6982 struct brcmf_if *ifp; 6983 s32 err = 0; 6984 s32 io_type; 6985 u16 *cap = NULL; 6986 6987 if (!ndev) { 6988 brcmf_err("ndev is invalid\n"); 6989 return NULL; 6990 } 6991 6992 ops = kmemdup(&brcmf_cfg80211_ops, sizeof(*ops), GFP_KERNEL); 6993 if (!ops) 6994 return NULL; 6995 6996 ifp = netdev_priv(ndev); 6997 #ifdef CONFIG_PM 6998 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_WOWL_GTK)) 6999 ops->set_rekey_data = brcmf_cfg80211_set_rekey_data; 7000 #endif 7001 wiphy = wiphy_new(ops, sizeof(struct brcmf_cfg80211_info)); 7002 if (!wiphy) { 7003 brcmf_err("Could not allocate wiphy device\n"); 7004 goto ops_out; 7005 } 7006 memcpy(wiphy->perm_addr, drvr->mac, ETH_ALEN); 7007 set_wiphy_dev(wiphy, busdev); 7008 7009 cfg = wiphy_priv(wiphy); 7010 cfg->wiphy = wiphy; 7011 cfg->ops = ops; 7012 cfg->pub = drvr; 7013 init_vif_event(&cfg->vif_event); 7014 INIT_LIST_HEAD(&cfg->vif_list); 7015 7016 vif = brcmf_alloc_vif(cfg, NL80211_IFTYPE_STATION); 7017 if (IS_ERR(vif)) 7018 goto wiphy_out; 7019 7020 vif->ifp = ifp; 7021 vif->wdev.netdev = ndev; 7022 ndev->ieee80211_ptr = &vif->wdev; 7023 SET_NETDEV_DEV(ndev, wiphy_dev(cfg->wiphy)); 7024 7025 err = wl_init_priv(cfg); 7026 if (err) { 7027 brcmf_err("Failed to init iwm_priv (%d)\n", err); 7028 brcmf_free_vif(vif); 7029 goto wiphy_out; 7030 } 7031 ifp->vif = vif; 7032 7033 /* determine d11 io type before wiphy setup */ 7034 err = brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_VERSION, &io_type); 7035 if (err) { 7036 brcmf_err("Failed to get D11 version (%d)\n", err); 7037 goto priv_out; 7038 } 7039 cfg->d11inf.io_type = (u8)io_type; 7040 brcmu_d11_attach(&cfg->d11inf); 7041 7042 err = brcmf_setup_wiphy(wiphy, ifp); 7043 if (err < 0) 7044 goto priv_out; 7045 7046 brcmf_dbg(INFO, "Registering custom regulatory\n"); 7047 wiphy->reg_notifier = brcmf_cfg80211_reg_notifier; 7048 wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG; 7049 wiphy_apply_custom_regulatory(wiphy, &brcmf_regdom); 7050 7051 /* firmware defaults to 40MHz disabled in 2G band. We signal 7052 * cfg80211 here that we do and have it decide we can enable 7053 * it. But first check if device does support 2G operation. 7054 */ 7055 if (wiphy->bands[NL80211_BAND_2GHZ]) { 7056 cap = &wiphy->bands[NL80211_BAND_2GHZ]->ht_cap.cap; 7057 *cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; 7058 } 7059 err = wiphy_register(wiphy); 7060 if (err < 0) { 7061 brcmf_err("Could not register wiphy device (%d)\n", err); 7062 goto priv_out; 7063 } 7064 7065 err = brcmf_setup_wiphybands(wiphy); 7066 if (err) { 7067 brcmf_err("Setting wiphy bands failed (%d)\n", err); 7068 goto wiphy_unreg_out; 7069 } 7070 7071 /* If cfg80211 didn't disable 40MHz HT CAP in wiphy_register(), 7072 * setup 40MHz in 2GHz band and enable OBSS scanning. 7073 */ 7074 if (cap && (*cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40)) { 7075 err = brcmf_enable_bw40_2g(cfg); 7076 if (!err) 7077 err = brcmf_fil_iovar_int_set(ifp, "obss_coex", 7078 BRCMF_OBSS_COEX_AUTO); 7079 else 7080 *cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40; 7081 } 7082 /* p2p might require that "if-events" get processed by fweh. So 7083 * activate the already registered event handlers now and activate 7084 * the rest when initialization has completed. drvr->config needs to 7085 * be assigned before activating events. 7086 */ 7087 drvr->config = cfg; 7088 err = brcmf_fweh_activate_events(ifp); 7089 if (err) { 7090 brcmf_err("FWEH activation failed (%d)\n", err); 7091 goto wiphy_unreg_out; 7092 } 7093 7094 err = brcmf_p2p_attach(cfg, p2pdev_forced); 7095 if (err) { 7096 brcmf_err("P2P initialisation failed (%d)\n", err); 7097 goto wiphy_unreg_out; 7098 } 7099 err = brcmf_btcoex_attach(cfg); 7100 if (err) { 7101 brcmf_err("BT-coex initialisation failed (%d)\n", err); 7102 brcmf_p2p_detach(&cfg->p2p); 7103 goto wiphy_unreg_out; 7104 } 7105 err = brcmf_pno_attach(cfg); 7106 if (err) { 7107 brcmf_err("PNO initialisation failed (%d)\n", err); 7108 brcmf_btcoex_detach(cfg); 7109 brcmf_p2p_detach(&cfg->p2p); 7110 goto wiphy_unreg_out; 7111 } 7112 7113 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_TDLS)) { 7114 err = brcmf_fil_iovar_int_set(ifp, "tdls_enable", 1); 7115 if (err) { 7116 brcmf_dbg(INFO, "TDLS not enabled (%d)\n", err); 7117 wiphy->flags &= ~WIPHY_FLAG_SUPPORTS_TDLS; 7118 } else { 7119 brcmf_fweh_register(cfg->pub, BRCMF_E_TDLS_PEER_EVENT, 7120 brcmf_notify_tdls_peer_event); 7121 } 7122 } 7123 7124 /* (re-) activate FWEH event handling */ 7125 err = brcmf_fweh_activate_events(ifp); 7126 if (err) { 7127 brcmf_err("FWEH activation failed (%d)\n", err); 7128 goto detach; 7129 } 7130 7131 /* Fill in some of the advertised nl80211 supported features */ 7132 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_SCAN_RANDOM_MAC)) { 7133 wiphy->features |= NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR; 7134 #ifdef CONFIG_PM 7135 if (wiphy->wowlan && 7136 wiphy->wowlan->flags & WIPHY_WOWLAN_NET_DETECT) 7137 wiphy->features |= NL80211_FEATURE_ND_RANDOM_MAC_ADDR; 7138 #endif 7139 } 7140 7141 return cfg; 7142 7143 detach: 7144 brcmf_pno_detach(cfg); 7145 brcmf_btcoex_detach(cfg); 7146 brcmf_p2p_detach(&cfg->p2p); 7147 wiphy_unreg_out: 7148 wiphy_unregister(cfg->wiphy); 7149 priv_out: 7150 wl_deinit_priv(cfg); 7151 brcmf_free_vif(vif); 7152 ifp->vif = NULL; 7153 wiphy_out: 7154 brcmf_free_wiphy(wiphy); 7155 ops_out: 7156 kfree(ops); 7157 return NULL; 7158 } 7159 7160 void brcmf_cfg80211_detach(struct brcmf_cfg80211_info *cfg) 7161 { 7162 if (!cfg) 7163 return; 7164 7165 brcmf_pno_detach(cfg); 7166 brcmf_btcoex_detach(cfg); 7167 wiphy_unregister(cfg->wiphy); 7168 kfree(cfg->ops); 7169 wl_deinit_priv(cfg); 7170 brcmf_free_wiphy(cfg->wiphy); 7171 } 7172