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 3944 /* set auth */ 3945 err = brcmf_fil_bsscfg_int_set(ifp, "auth", 0); 3946 if (err < 0) { 3947 brcmf_err("auth error %d\n", err); 3948 return err; 3949 } 3950 /* set wsec */ 3951 err = brcmf_fil_bsscfg_int_set(ifp, "wsec", 0); 3952 if (err < 0) { 3953 brcmf_err("wsec error %d\n", err); 3954 return err; 3955 } 3956 /* set upper-layer auth */ 3957 err = brcmf_fil_bsscfg_int_set(ifp, "wpa_auth", WPA_AUTH_NONE); 3958 if (err < 0) { 3959 brcmf_err("wpa_auth error %d\n", err); 3960 return err; 3961 } 3962 3963 return 0; 3964 } 3965 3966 static bool brcmf_valid_wpa_oui(u8 *oui, bool is_rsn_ie) 3967 { 3968 if (is_rsn_ie) 3969 return (memcmp(oui, RSN_OUI, TLV_OUI_LEN) == 0); 3970 3971 return (memcmp(oui, WPA_OUI, TLV_OUI_LEN) == 0); 3972 } 3973 3974 static s32 3975 brcmf_configure_wpaie(struct brcmf_if *ifp, 3976 const struct brcmf_vs_tlv *wpa_ie, 3977 bool is_rsn_ie) 3978 { 3979 u32 auth = 0; /* d11 open authentication */ 3980 u16 count; 3981 s32 err = 0; 3982 s32 len; 3983 u32 i; 3984 u32 wsec; 3985 u32 pval = 0; 3986 u32 gval = 0; 3987 u32 wpa_auth = 0; 3988 u32 offset; 3989 u8 *data; 3990 u16 rsn_cap; 3991 u32 wme_bss_disable; 3992 u32 mfp; 3993 3994 brcmf_dbg(TRACE, "Enter\n"); 3995 if (wpa_ie == NULL) 3996 goto exit; 3997 3998 len = wpa_ie->len + TLV_HDR_LEN; 3999 data = (u8 *)wpa_ie; 4000 offset = TLV_HDR_LEN; 4001 if (!is_rsn_ie) 4002 offset += VS_IE_FIXED_HDR_LEN; 4003 else 4004 offset += WPA_IE_VERSION_LEN; 4005 4006 /* check for multicast cipher suite */ 4007 if (offset + WPA_IE_MIN_OUI_LEN > len) { 4008 err = -EINVAL; 4009 brcmf_err("no multicast cipher suite\n"); 4010 goto exit; 4011 } 4012 4013 if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) { 4014 err = -EINVAL; 4015 brcmf_err("ivalid OUI\n"); 4016 goto exit; 4017 } 4018 offset += TLV_OUI_LEN; 4019 4020 /* pick up multicast cipher */ 4021 switch (data[offset]) { 4022 case WPA_CIPHER_NONE: 4023 gval = 0; 4024 break; 4025 case WPA_CIPHER_WEP_40: 4026 case WPA_CIPHER_WEP_104: 4027 gval = WEP_ENABLED; 4028 break; 4029 case WPA_CIPHER_TKIP: 4030 gval = TKIP_ENABLED; 4031 break; 4032 case WPA_CIPHER_AES_CCM: 4033 gval = AES_ENABLED; 4034 break; 4035 default: 4036 err = -EINVAL; 4037 brcmf_err("Invalid multi cast cipher info\n"); 4038 goto exit; 4039 } 4040 4041 offset++; 4042 /* walk thru unicast cipher list and pick up what we recognize */ 4043 count = data[offset] + (data[offset + 1] << 8); 4044 offset += WPA_IE_SUITE_COUNT_LEN; 4045 /* Check for unicast suite(s) */ 4046 if (offset + (WPA_IE_MIN_OUI_LEN * count) > len) { 4047 err = -EINVAL; 4048 brcmf_err("no unicast cipher suite\n"); 4049 goto exit; 4050 } 4051 for (i = 0; i < count; i++) { 4052 if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) { 4053 err = -EINVAL; 4054 brcmf_err("ivalid OUI\n"); 4055 goto exit; 4056 } 4057 offset += TLV_OUI_LEN; 4058 switch (data[offset]) { 4059 case WPA_CIPHER_NONE: 4060 break; 4061 case WPA_CIPHER_WEP_40: 4062 case WPA_CIPHER_WEP_104: 4063 pval |= WEP_ENABLED; 4064 break; 4065 case WPA_CIPHER_TKIP: 4066 pval |= TKIP_ENABLED; 4067 break; 4068 case WPA_CIPHER_AES_CCM: 4069 pval |= AES_ENABLED; 4070 break; 4071 default: 4072 brcmf_err("Invalid unicast security info\n"); 4073 } 4074 offset++; 4075 } 4076 /* walk thru auth management suite list and pick up what we recognize */ 4077 count = data[offset] + (data[offset + 1] << 8); 4078 offset += WPA_IE_SUITE_COUNT_LEN; 4079 /* Check for auth key management suite(s) */ 4080 if (offset + (WPA_IE_MIN_OUI_LEN * count) > len) { 4081 err = -EINVAL; 4082 brcmf_err("no auth key mgmt suite\n"); 4083 goto exit; 4084 } 4085 for (i = 0; i < count; i++) { 4086 if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) { 4087 err = -EINVAL; 4088 brcmf_err("ivalid OUI\n"); 4089 goto exit; 4090 } 4091 offset += TLV_OUI_LEN; 4092 switch (data[offset]) { 4093 case RSN_AKM_NONE: 4094 brcmf_dbg(TRACE, "RSN_AKM_NONE\n"); 4095 wpa_auth |= WPA_AUTH_NONE; 4096 break; 4097 case RSN_AKM_UNSPECIFIED: 4098 brcmf_dbg(TRACE, "RSN_AKM_UNSPECIFIED\n"); 4099 is_rsn_ie ? (wpa_auth |= WPA2_AUTH_UNSPECIFIED) : 4100 (wpa_auth |= WPA_AUTH_UNSPECIFIED); 4101 break; 4102 case RSN_AKM_PSK: 4103 brcmf_dbg(TRACE, "RSN_AKM_PSK\n"); 4104 is_rsn_ie ? (wpa_auth |= WPA2_AUTH_PSK) : 4105 (wpa_auth |= WPA_AUTH_PSK); 4106 break; 4107 case RSN_AKM_SHA256_PSK: 4108 brcmf_dbg(TRACE, "RSN_AKM_MFP_PSK\n"); 4109 wpa_auth |= WPA2_AUTH_PSK_SHA256; 4110 break; 4111 case RSN_AKM_SHA256_1X: 4112 brcmf_dbg(TRACE, "RSN_AKM_MFP_1X\n"); 4113 wpa_auth |= WPA2_AUTH_1X_SHA256; 4114 break; 4115 default: 4116 brcmf_err("Invalid key mgmt info\n"); 4117 } 4118 offset++; 4119 } 4120 4121 mfp = BRCMF_MFP_NONE; 4122 if (is_rsn_ie) { 4123 wme_bss_disable = 1; 4124 if ((offset + RSN_CAP_LEN) <= len) { 4125 rsn_cap = data[offset] + (data[offset + 1] << 8); 4126 if (rsn_cap & RSN_CAP_PTK_REPLAY_CNTR_MASK) 4127 wme_bss_disable = 0; 4128 if (rsn_cap & RSN_CAP_MFPR_MASK) { 4129 brcmf_dbg(TRACE, "MFP Required\n"); 4130 mfp = BRCMF_MFP_REQUIRED; 4131 /* Firmware only supports mfp required in 4132 * combination with WPA2_AUTH_PSK_SHA256 or 4133 * WPA2_AUTH_1X_SHA256. 4134 */ 4135 if (!(wpa_auth & (WPA2_AUTH_PSK_SHA256 | 4136 WPA2_AUTH_1X_SHA256))) { 4137 err = -EINVAL; 4138 goto exit; 4139 } 4140 /* Firmware has requirement that WPA2_AUTH_PSK/ 4141 * WPA2_AUTH_UNSPECIFIED be set, if SHA256 OUI 4142 * is to be included in the rsn ie. 4143 */ 4144 if (wpa_auth & WPA2_AUTH_PSK_SHA256) 4145 wpa_auth |= WPA2_AUTH_PSK; 4146 else if (wpa_auth & WPA2_AUTH_1X_SHA256) 4147 wpa_auth |= WPA2_AUTH_UNSPECIFIED; 4148 } else if (rsn_cap & RSN_CAP_MFPC_MASK) { 4149 brcmf_dbg(TRACE, "MFP Capable\n"); 4150 mfp = BRCMF_MFP_CAPABLE; 4151 } 4152 } 4153 offset += RSN_CAP_LEN; 4154 /* set wme_bss_disable to sync RSN Capabilities */ 4155 err = brcmf_fil_bsscfg_int_set(ifp, "wme_bss_disable", 4156 wme_bss_disable); 4157 if (err < 0) { 4158 brcmf_err("wme_bss_disable error %d\n", err); 4159 goto exit; 4160 } 4161 4162 /* Skip PMKID cnt as it is know to be 0 for AP. */ 4163 offset += RSN_PMKID_COUNT_LEN; 4164 4165 /* See if there is BIP wpa suite left for MFP */ 4166 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MFP) && 4167 ((offset + WPA_IE_MIN_OUI_LEN) <= len)) { 4168 err = brcmf_fil_bsscfg_data_set(ifp, "bip", 4169 &data[offset], 4170 WPA_IE_MIN_OUI_LEN); 4171 if (err < 0) { 4172 brcmf_err("bip error %d\n", err); 4173 goto exit; 4174 } 4175 } 4176 } 4177 /* FOR WPS , set SES_OW_ENABLED */ 4178 wsec = (pval | gval | SES_OW_ENABLED); 4179 4180 /* set auth */ 4181 err = brcmf_fil_bsscfg_int_set(ifp, "auth", auth); 4182 if (err < 0) { 4183 brcmf_err("auth error %d\n", err); 4184 goto exit; 4185 } 4186 /* set wsec */ 4187 err = brcmf_fil_bsscfg_int_set(ifp, "wsec", wsec); 4188 if (err < 0) { 4189 brcmf_err("wsec error %d\n", err); 4190 goto exit; 4191 } 4192 /* Configure MFP, this needs to go after wsec otherwise the wsec command 4193 * will overwrite the values set by MFP 4194 */ 4195 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MFP)) { 4196 err = brcmf_fil_bsscfg_int_set(ifp, "mfp", mfp); 4197 if (err < 0) { 4198 brcmf_err("mfp error %d\n", err); 4199 goto exit; 4200 } 4201 } 4202 /* set upper-layer auth */ 4203 err = brcmf_fil_bsscfg_int_set(ifp, "wpa_auth", wpa_auth); 4204 if (err < 0) { 4205 brcmf_err("wpa_auth error %d\n", err); 4206 goto exit; 4207 } 4208 4209 exit: 4210 return err; 4211 } 4212 4213 static s32 4214 brcmf_parse_vndr_ies(const u8 *vndr_ie_buf, u32 vndr_ie_len, 4215 struct parsed_vndr_ies *vndr_ies) 4216 { 4217 struct brcmf_vs_tlv *vndrie; 4218 struct brcmf_tlv *ie; 4219 struct parsed_vndr_ie_info *parsed_info; 4220 s32 remaining_len; 4221 4222 remaining_len = (s32)vndr_ie_len; 4223 memset(vndr_ies, 0, sizeof(*vndr_ies)); 4224 4225 ie = (struct brcmf_tlv *)vndr_ie_buf; 4226 while (ie) { 4227 if (ie->id != WLAN_EID_VENDOR_SPECIFIC) 4228 goto next; 4229 vndrie = (struct brcmf_vs_tlv *)ie; 4230 /* len should be bigger than OUI length + one */ 4231 if (vndrie->len < (VS_IE_FIXED_HDR_LEN - TLV_HDR_LEN + 1)) { 4232 brcmf_err("invalid vndr ie. length is too small %d\n", 4233 vndrie->len); 4234 goto next; 4235 } 4236 /* if wpa or wme ie, do not add ie */ 4237 if (!memcmp(vndrie->oui, (u8 *)WPA_OUI, TLV_OUI_LEN) && 4238 ((vndrie->oui_type == WPA_OUI_TYPE) || 4239 (vndrie->oui_type == WME_OUI_TYPE))) { 4240 brcmf_dbg(TRACE, "Found WPA/WME oui. Do not add it\n"); 4241 goto next; 4242 } 4243 4244 parsed_info = &vndr_ies->ie_info[vndr_ies->count]; 4245 4246 /* save vndr ie information */ 4247 parsed_info->ie_ptr = (char *)vndrie; 4248 parsed_info->ie_len = vndrie->len + TLV_HDR_LEN; 4249 memcpy(&parsed_info->vndrie, vndrie, sizeof(*vndrie)); 4250 4251 vndr_ies->count++; 4252 4253 brcmf_dbg(TRACE, "** OUI %02x %02x %02x, type 0x%02x\n", 4254 parsed_info->vndrie.oui[0], 4255 parsed_info->vndrie.oui[1], 4256 parsed_info->vndrie.oui[2], 4257 parsed_info->vndrie.oui_type); 4258 4259 if (vndr_ies->count >= VNDR_IE_PARSE_LIMIT) 4260 break; 4261 next: 4262 remaining_len -= (ie->len + TLV_HDR_LEN); 4263 if (remaining_len <= TLV_HDR_LEN) 4264 ie = NULL; 4265 else 4266 ie = (struct brcmf_tlv *)(((u8 *)ie) + ie->len + 4267 TLV_HDR_LEN); 4268 } 4269 return 0; 4270 } 4271 4272 static u32 4273 brcmf_vndr_ie(u8 *iebuf, s32 pktflag, u8 *ie_ptr, u32 ie_len, s8 *add_del_cmd) 4274 { 4275 4276 strncpy(iebuf, add_del_cmd, VNDR_IE_CMD_LEN - 1); 4277 iebuf[VNDR_IE_CMD_LEN - 1] = '\0'; 4278 4279 put_unaligned_le32(1, &iebuf[VNDR_IE_COUNT_OFFSET]); 4280 4281 put_unaligned_le32(pktflag, &iebuf[VNDR_IE_PKTFLAG_OFFSET]); 4282 4283 memcpy(&iebuf[VNDR_IE_VSIE_OFFSET], ie_ptr, ie_len); 4284 4285 return ie_len + VNDR_IE_HDR_SIZE; 4286 } 4287 4288 s32 brcmf_vif_set_mgmt_ie(struct brcmf_cfg80211_vif *vif, s32 pktflag, 4289 const u8 *vndr_ie_buf, u32 vndr_ie_len) 4290 { 4291 struct brcmf_if *ifp; 4292 struct vif_saved_ie *saved_ie; 4293 s32 err = 0; 4294 u8 *iovar_ie_buf; 4295 u8 *curr_ie_buf; 4296 u8 *mgmt_ie_buf = NULL; 4297 int mgmt_ie_buf_len; 4298 u32 *mgmt_ie_len; 4299 u32 del_add_ie_buf_len = 0; 4300 u32 total_ie_buf_len = 0; 4301 u32 parsed_ie_buf_len = 0; 4302 struct parsed_vndr_ies old_vndr_ies; 4303 struct parsed_vndr_ies new_vndr_ies; 4304 struct parsed_vndr_ie_info *vndrie_info; 4305 s32 i; 4306 u8 *ptr; 4307 int remained_buf_len; 4308 4309 if (!vif) 4310 return -ENODEV; 4311 ifp = vif->ifp; 4312 saved_ie = &vif->saved_ie; 4313 4314 brcmf_dbg(TRACE, "bsscfgidx %d, pktflag : 0x%02X\n", ifp->bsscfgidx, 4315 pktflag); 4316 iovar_ie_buf = kzalloc(WL_EXTRA_BUF_MAX, GFP_KERNEL); 4317 if (!iovar_ie_buf) 4318 return -ENOMEM; 4319 curr_ie_buf = iovar_ie_buf; 4320 switch (pktflag) { 4321 case BRCMF_VNDR_IE_PRBREQ_FLAG: 4322 mgmt_ie_buf = saved_ie->probe_req_ie; 4323 mgmt_ie_len = &saved_ie->probe_req_ie_len; 4324 mgmt_ie_buf_len = sizeof(saved_ie->probe_req_ie); 4325 break; 4326 case BRCMF_VNDR_IE_PRBRSP_FLAG: 4327 mgmt_ie_buf = saved_ie->probe_res_ie; 4328 mgmt_ie_len = &saved_ie->probe_res_ie_len; 4329 mgmt_ie_buf_len = sizeof(saved_ie->probe_res_ie); 4330 break; 4331 case BRCMF_VNDR_IE_BEACON_FLAG: 4332 mgmt_ie_buf = saved_ie->beacon_ie; 4333 mgmt_ie_len = &saved_ie->beacon_ie_len; 4334 mgmt_ie_buf_len = sizeof(saved_ie->beacon_ie); 4335 break; 4336 case BRCMF_VNDR_IE_ASSOCREQ_FLAG: 4337 mgmt_ie_buf = saved_ie->assoc_req_ie; 4338 mgmt_ie_len = &saved_ie->assoc_req_ie_len; 4339 mgmt_ie_buf_len = sizeof(saved_ie->assoc_req_ie); 4340 break; 4341 default: 4342 err = -EPERM; 4343 brcmf_err("not suitable type\n"); 4344 goto exit; 4345 } 4346 4347 if (vndr_ie_len > mgmt_ie_buf_len) { 4348 err = -ENOMEM; 4349 brcmf_err("extra IE size too big\n"); 4350 goto exit; 4351 } 4352 4353 /* parse and save new vndr_ie in curr_ie_buff before comparing it */ 4354 if (vndr_ie_buf && vndr_ie_len && curr_ie_buf) { 4355 ptr = curr_ie_buf; 4356 brcmf_parse_vndr_ies(vndr_ie_buf, vndr_ie_len, &new_vndr_ies); 4357 for (i = 0; i < new_vndr_ies.count; i++) { 4358 vndrie_info = &new_vndr_ies.ie_info[i]; 4359 memcpy(ptr + parsed_ie_buf_len, vndrie_info->ie_ptr, 4360 vndrie_info->ie_len); 4361 parsed_ie_buf_len += vndrie_info->ie_len; 4362 } 4363 } 4364 4365 if (mgmt_ie_buf && *mgmt_ie_len) { 4366 if (parsed_ie_buf_len && (parsed_ie_buf_len == *mgmt_ie_len) && 4367 (memcmp(mgmt_ie_buf, curr_ie_buf, 4368 parsed_ie_buf_len) == 0)) { 4369 brcmf_dbg(TRACE, "Previous mgmt IE equals to current IE\n"); 4370 goto exit; 4371 } 4372 4373 /* parse old vndr_ie */ 4374 brcmf_parse_vndr_ies(mgmt_ie_buf, *mgmt_ie_len, &old_vndr_ies); 4375 4376 /* make a command to delete old ie */ 4377 for (i = 0; i < old_vndr_ies.count; i++) { 4378 vndrie_info = &old_vndr_ies.ie_info[i]; 4379 4380 brcmf_dbg(TRACE, "DEL ID : %d, Len: %d , OUI:%02x:%02x:%02x\n", 4381 vndrie_info->vndrie.id, 4382 vndrie_info->vndrie.len, 4383 vndrie_info->vndrie.oui[0], 4384 vndrie_info->vndrie.oui[1], 4385 vndrie_info->vndrie.oui[2]); 4386 4387 del_add_ie_buf_len = brcmf_vndr_ie(curr_ie_buf, pktflag, 4388 vndrie_info->ie_ptr, 4389 vndrie_info->ie_len, 4390 "del"); 4391 curr_ie_buf += del_add_ie_buf_len; 4392 total_ie_buf_len += del_add_ie_buf_len; 4393 } 4394 } 4395 4396 *mgmt_ie_len = 0; 4397 /* Add if there is any extra IE */ 4398 if (mgmt_ie_buf && parsed_ie_buf_len) { 4399 ptr = mgmt_ie_buf; 4400 4401 remained_buf_len = mgmt_ie_buf_len; 4402 4403 /* make a command to add new ie */ 4404 for (i = 0; i < new_vndr_ies.count; i++) { 4405 vndrie_info = &new_vndr_ies.ie_info[i]; 4406 4407 /* verify remained buf size before copy data */ 4408 if (remained_buf_len < (vndrie_info->vndrie.len + 4409 VNDR_IE_VSIE_OFFSET)) { 4410 brcmf_err("no space in mgmt_ie_buf: len left %d", 4411 remained_buf_len); 4412 break; 4413 } 4414 remained_buf_len -= (vndrie_info->ie_len + 4415 VNDR_IE_VSIE_OFFSET); 4416 4417 brcmf_dbg(TRACE, "ADDED ID : %d, Len: %d, OUI:%02x:%02x:%02x\n", 4418 vndrie_info->vndrie.id, 4419 vndrie_info->vndrie.len, 4420 vndrie_info->vndrie.oui[0], 4421 vndrie_info->vndrie.oui[1], 4422 vndrie_info->vndrie.oui[2]); 4423 4424 del_add_ie_buf_len = brcmf_vndr_ie(curr_ie_buf, pktflag, 4425 vndrie_info->ie_ptr, 4426 vndrie_info->ie_len, 4427 "add"); 4428 4429 /* save the parsed IE in wl struct */ 4430 memcpy(ptr + (*mgmt_ie_len), vndrie_info->ie_ptr, 4431 vndrie_info->ie_len); 4432 *mgmt_ie_len += vndrie_info->ie_len; 4433 4434 curr_ie_buf += del_add_ie_buf_len; 4435 total_ie_buf_len += del_add_ie_buf_len; 4436 } 4437 } 4438 if (total_ie_buf_len) { 4439 err = brcmf_fil_bsscfg_data_set(ifp, "vndr_ie", iovar_ie_buf, 4440 total_ie_buf_len); 4441 if (err) 4442 brcmf_err("vndr ie set error : %d\n", err); 4443 } 4444 4445 exit: 4446 kfree(iovar_ie_buf); 4447 return err; 4448 } 4449 4450 s32 brcmf_vif_clear_mgmt_ies(struct brcmf_cfg80211_vif *vif) 4451 { 4452 s32 pktflags[] = { 4453 BRCMF_VNDR_IE_PRBREQ_FLAG, 4454 BRCMF_VNDR_IE_PRBRSP_FLAG, 4455 BRCMF_VNDR_IE_BEACON_FLAG 4456 }; 4457 int i; 4458 4459 for (i = 0; i < ARRAY_SIZE(pktflags); i++) 4460 brcmf_vif_set_mgmt_ie(vif, pktflags[i], NULL, 0); 4461 4462 memset(&vif->saved_ie, 0, sizeof(vif->saved_ie)); 4463 return 0; 4464 } 4465 4466 static s32 4467 brcmf_config_ap_mgmt_ie(struct brcmf_cfg80211_vif *vif, 4468 struct cfg80211_beacon_data *beacon) 4469 { 4470 s32 err; 4471 4472 /* Set Beacon IEs to FW */ 4473 err = brcmf_vif_set_mgmt_ie(vif, BRCMF_VNDR_IE_BEACON_FLAG, 4474 beacon->tail, beacon->tail_len); 4475 if (err) { 4476 brcmf_err("Set Beacon IE Failed\n"); 4477 return err; 4478 } 4479 brcmf_dbg(TRACE, "Applied Vndr IEs for Beacon\n"); 4480 4481 /* Set Probe Response IEs to FW */ 4482 err = brcmf_vif_set_mgmt_ie(vif, BRCMF_VNDR_IE_PRBRSP_FLAG, 4483 beacon->proberesp_ies, 4484 beacon->proberesp_ies_len); 4485 if (err) 4486 brcmf_err("Set Probe Resp IE Failed\n"); 4487 else 4488 brcmf_dbg(TRACE, "Applied Vndr IEs for Probe Resp\n"); 4489 4490 return err; 4491 } 4492 4493 static s32 4494 brcmf_cfg80211_start_ap(struct wiphy *wiphy, struct net_device *ndev, 4495 struct cfg80211_ap_settings *settings) 4496 { 4497 s32 ie_offset; 4498 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 4499 struct brcmf_if *ifp = netdev_priv(ndev); 4500 const struct brcmf_tlv *ssid_ie; 4501 const struct brcmf_tlv *country_ie; 4502 struct brcmf_ssid_le ssid_le; 4503 s32 err = -EPERM; 4504 const struct brcmf_tlv *rsn_ie; 4505 const struct brcmf_vs_tlv *wpa_ie; 4506 struct brcmf_join_params join_params; 4507 enum nl80211_iftype dev_role; 4508 struct brcmf_fil_bss_enable_le bss_enable; 4509 u16 chanspec = chandef_to_chanspec(&cfg->d11inf, &settings->chandef); 4510 bool mbss; 4511 int is_11d; 4512 bool supports_11d; 4513 4514 brcmf_dbg(TRACE, "ctrlchn=%d, center=%d, bw=%d, beacon_interval=%d, dtim_period=%d,\n", 4515 settings->chandef.chan->hw_value, 4516 settings->chandef.center_freq1, settings->chandef.width, 4517 settings->beacon_interval, settings->dtim_period); 4518 brcmf_dbg(TRACE, "ssid=%s(%zu), auth_type=%d, inactivity_timeout=%d\n", 4519 settings->ssid, settings->ssid_len, settings->auth_type, 4520 settings->inactivity_timeout); 4521 dev_role = ifp->vif->wdev.iftype; 4522 mbss = ifp->vif->mbss; 4523 4524 /* store current 11d setting */ 4525 if (brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_REGULATORY, 4526 &ifp->vif->is_11d)) { 4527 is_11d = supports_11d = false; 4528 } else { 4529 country_ie = brcmf_parse_tlvs((u8 *)settings->beacon.tail, 4530 settings->beacon.tail_len, 4531 WLAN_EID_COUNTRY); 4532 is_11d = country_ie ? 1 : 0; 4533 supports_11d = true; 4534 } 4535 4536 memset(&ssid_le, 0, sizeof(ssid_le)); 4537 if (settings->ssid == NULL || settings->ssid_len == 0) { 4538 ie_offset = DOT11_MGMT_HDR_LEN + DOT11_BCN_PRB_FIXED_LEN; 4539 ssid_ie = brcmf_parse_tlvs( 4540 (u8 *)&settings->beacon.head[ie_offset], 4541 settings->beacon.head_len - ie_offset, 4542 WLAN_EID_SSID); 4543 if (!ssid_ie || ssid_ie->len > IEEE80211_MAX_SSID_LEN) 4544 return -EINVAL; 4545 4546 memcpy(ssid_le.SSID, ssid_ie->data, ssid_ie->len); 4547 ssid_le.SSID_len = cpu_to_le32(ssid_ie->len); 4548 brcmf_dbg(TRACE, "SSID is (%s) in Head\n", ssid_le.SSID); 4549 } else { 4550 memcpy(ssid_le.SSID, settings->ssid, settings->ssid_len); 4551 ssid_le.SSID_len = cpu_to_le32((u32)settings->ssid_len); 4552 } 4553 4554 if (!mbss) { 4555 brcmf_set_mpc(ifp, 0); 4556 brcmf_configure_arp_nd_offload(ifp, false); 4557 } 4558 4559 /* find the RSN_IE */ 4560 rsn_ie = brcmf_parse_tlvs((u8 *)settings->beacon.tail, 4561 settings->beacon.tail_len, WLAN_EID_RSN); 4562 4563 /* find the WPA_IE */ 4564 wpa_ie = brcmf_find_wpaie((u8 *)settings->beacon.tail, 4565 settings->beacon.tail_len); 4566 4567 if ((wpa_ie != NULL || rsn_ie != NULL)) { 4568 brcmf_dbg(TRACE, "WPA(2) IE is found\n"); 4569 if (wpa_ie != NULL) { 4570 /* WPA IE */ 4571 err = brcmf_configure_wpaie(ifp, wpa_ie, false); 4572 if (err < 0) 4573 goto exit; 4574 } else { 4575 struct brcmf_vs_tlv *tmp_ie; 4576 4577 tmp_ie = (struct brcmf_vs_tlv *)rsn_ie; 4578 4579 /* RSN IE */ 4580 err = brcmf_configure_wpaie(ifp, tmp_ie, true); 4581 if (err < 0) 4582 goto exit; 4583 } 4584 } else { 4585 brcmf_dbg(TRACE, "No WPA(2) IEs found\n"); 4586 brcmf_configure_opensecurity(ifp); 4587 } 4588 4589 /* Parameters shared by all radio interfaces */ 4590 if (!mbss) { 4591 if ((supports_11d) && (is_11d != ifp->vif->is_11d)) { 4592 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_REGULATORY, 4593 is_11d); 4594 if (err < 0) { 4595 brcmf_err("Regulatory Set Error, %d\n", err); 4596 goto exit; 4597 } 4598 } 4599 if (settings->beacon_interval) { 4600 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_BCNPRD, 4601 settings->beacon_interval); 4602 if (err < 0) { 4603 brcmf_err("Beacon Interval Set Error, %d\n", 4604 err); 4605 goto exit; 4606 } 4607 } 4608 if (settings->dtim_period) { 4609 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_DTIMPRD, 4610 settings->dtim_period); 4611 if (err < 0) { 4612 brcmf_err("DTIM Interval Set Error, %d\n", err); 4613 goto exit; 4614 } 4615 } 4616 4617 if ((dev_role == NL80211_IFTYPE_AP) && 4618 ((ifp->ifidx == 0) || 4619 !brcmf_feat_is_enabled(ifp, BRCMF_FEAT_RSDB))) { 4620 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_DOWN, 1); 4621 if (err < 0) { 4622 brcmf_err("BRCMF_C_DOWN error %d\n", err); 4623 goto exit; 4624 } 4625 brcmf_fil_iovar_int_set(ifp, "apsta", 0); 4626 } 4627 4628 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_INFRA, 1); 4629 if (err < 0) { 4630 brcmf_err("SET INFRA error %d\n", err); 4631 goto exit; 4632 } 4633 } else if (WARN_ON(supports_11d && (is_11d != ifp->vif->is_11d))) { 4634 /* Multiple-BSS should use same 11d configuration */ 4635 err = -EINVAL; 4636 goto exit; 4637 } 4638 4639 /* Interface specific setup */ 4640 if (dev_role == NL80211_IFTYPE_AP) { 4641 if ((brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MBSS)) && (!mbss)) 4642 brcmf_fil_iovar_int_set(ifp, "mbss", 1); 4643 4644 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_AP, 1); 4645 if (err < 0) { 4646 brcmf_err("setting AP mode failed %d\n", err); 4647 goto exit; 4648 } 4649 if (!mbss) { 4650 /* Firmware 10.x requires setting channel after enabling 4651 * AP and before bringing interface up. 4652 */ 4653 err = brcmf_fil_iovar_int_set(ifp, "chanspec", chanspec); 4654 if (err < 0) { 4655 brcmf_err("Set Channel failed: chspec=%d, %d\n", 4656 chanspec, err); 4657 goto exit; 4658 } 4659 } 4660 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 1); 4661 if (err < 0) { 4662 brcmf_err("BRCMF_C_UP error (%d)\n", err); 4663 goto exit; 4664 } 4665 /* On DOWN the firmware removes the WEP keys, reconfigure 4666 * them if they were set. 4667 */ 4668 brcmf_cfg80211_reconfigure_wep(ifp); 4669 4670 memset(&join_params, 0, sizeof(join_params)); 4671 /* join parameters starts with ssid */ 4672 memcpy(&join_params.ssid_le, &ssid_le, sizeof(ssid_le)); 4673 /* create softap */ 4674 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID, 4675 &join_params, sizeof(join_params)); 4676 if (err < 0) { 4677 brcmf_err("SET SSID error (%d)\n", err); 4678 goto exit; 4679 } 4680 4681 if (settings->hidden_ssid) { 4682 err = brcmf_fil_iovar_int_set(ifp, "closednet", 1); 4683 if (err) { 4684 brcmf_err("closednet error (%d)\n", err); 4685 goto exit; 4686 } 4687 } 4688 4689 brcmf_dbg(TRACE, "AP mode configuration complete\n"); 4690 } else if (dev_role == NL80211_IFTYPE_P2P_GO) { 4691 err = brcmf_fil_iovar_int_set(ifp, "chanspec", chanspec); 4692 if (err < 0) { 4693 brcmf_err("Set Channel failed: chspec=%d, %d\n", 4694 chanspec, err); 4695 goto exit; 4696 } 4697 err = brcmf_fil_bsscfg_data_set(ifp, "ssid", &ssid_le, 4698 sizeof(ssid_le)); 4699 if (err < 0) { 4700 brcmf_err("setting ssid failed %d\n", err); 4701 goto exit; 4702 } 4703 bss_enable.bsscfgidx = cpu_to_le32(ifp->bsscfgidx); 4704 bss_enable.enable = cpu_to_le32(1); 4705 err = brcmf_fil_iovar_data_set(ifp, "bss", &bss_enable, 4706 sizeof(bss_enable)); 4707 if (err < 0) { 4708 brcmf_err("bss_enable config failed %d\n", err); 4709 goto exit; 4710 } 4711 4712 brcmf_dbg(TRACE, "GO mode configuration complete\n"); 4713 } else { 4714 WARN_ON(1); 4715 } 4716 4717 brcmf_config_ap_mgmt_ie(ifp->vif, &settings->beacon); 4718 set_bit(BRCMF_VIF_STATUS_AP_CREATED, &ifp->vif->sme_state); 4719 brcmf_net_setcarrier(ifp, true); 4720 4721 exit: 4722 if ((err) && (!mbss)) { 4723 brcmf_set_mpc(ifp, 1); 4724 brcmf_configure_arp_nd_offload(ifp, true); 4725 } 4726 return err; 4727 } 4728 4729 static int brcmf_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *ndev) 4730 { 4731 struct brcmf_if *ifp = netdev_priv(ndev); 4732 s32 err; 4733 struct brcmf_fil_bss_enable_le bss_enable; 4734 struct brcmf_join_params join_params; 4735 4736 brcmf_dbg(TRACE, "Enter\n"); 4737 4738 if (ifp->vif->wdev.iftype == NL80211_IFTYPE_AP) { 4739 /* Due to most likely deauths outstanding we sleep */ 4740 /* first to make sure they get processed by fw. */ 4741 msleep(400); 4742 4743 if (ifp->vif->mbss) { 4744 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_DOWN, 1); 4745 return err; 4746 } 4747 4748 /* First BSS doesn't get a full reset */ 4749 if (ifp->bsscfgidx == 0) 4750 brcmf_fil_iovar_int_set(ifp, "closednet", 0); 4751 4752 memset(&join_params, 0, sizeof(join_params)); 4753 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID, 4754 &join_params, sizeof(join_params)); 4755 if (err < 0) 4756 brcmf_err("SET SSID error (%d)\n", err); 4757 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_DOWN, 1); 4758 if (err < 0) 4759 brcmf_err("BRCMF_C_DOWN error %d\n", err); 4760 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_AP, 0); 4761 if (err < 0) 4762 brcmf_err("setting AP mode failed %d\n", err); 4763 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MBSS)) 4764 brcmf_fil_iovar_int_set(ifp, "mbss", 0); 4765 brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_REGULATORY, 4766 ifp->vif->is_11d); 4767 /* Bring device back up so it can be used again */ 4768 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 1); 4769 if (err < 0) 4770 brcmf_err("BRCMF_C_UP error %d\n", err); 4771 4772 brcmf_vif_clear_mgmt_ies(ifp->vif); 4773 } else { 4774 bss_enable.bsscfgidx = cpu_to_le32(ifp->bsscfgidx); 4775 bss_enable.enable = cpu_to_le32(0); 4776 err = brcmf_fil_iovar_data_set(ifp, "bss", &bss_enable, 4777 sizeof(bss_enable)); 4778 if (err < 0) 4779 brcmf_err("bss_enable config failed %d\n", err); 4780 } 4781 brcmf_set_mpc(ifp, 1); 4782 brcmf_configure_arp_nd_offload(ifp, true); 4783 clear_bit(BRCMF_VIF_STATUS_AP_CREATED, &ifp->vif->sme_state); 4784 brcmf_net_setcarrier(ifp, false); 4785 4786 return err; 4787 } 4788 4789 static s32 4790 brcmf_cfg80211_change_beacon(struct wiphy *wiphy, struct net_device *ndev, 4791 struct cfg80211_beacon_data *info) 4792 { 4793 struct brcmf_if *ifp = netdev_priv(ndev); 4794 s32 err; 4795 4796 brcmf_dbg(TRACE, "Enter\n"); 4797 4798 err = brcmf_config_ap_mgmt_ie(ifp->vif, info); 4799 4800 return err; 4801 } 4802 4803 static int 4804 brcmf_cfg80211_del_station(struct wiphy *wiphy, struct net_device *ndev, 4805 struct station_del_parameters *params) 4806 { 4807 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 4808 struct brcmf_scb_val_le scbval; 4809 struct brcmf_if *ifp = netdev_priv(ndev); 4810 s32 err; 4811 4812 if (!params->mac) 4813 return -EFAULT; 4814 4815 brcmf_dbg(TRACE, "Enter %pM\n", params->mac); 4816 4817 if (ifp->vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif) 4818 ifp = cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif->ifp; 4819 if (!check_vif_up(ifp->vif)) 4820 return -EIO; 4821 4822 memcpy(&scbval.ea, params->mac, ETH_ALEN); 4823 scbval.val = cpu_to_le32(params->reason_code); 4824 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SCB_DEAUTHENTICATE_FOR_REASON, 4825 &scbval, sizeof(scbval)); 4826 if (err) 4827 brcmf_err("SCB_DEAUTHENTICATE_FOR_REASON failed %d\n", err); 4828 4829 brcmf_dbg(TRACE, "Exit\n"); 4830 return err; 4831 } 4832 4833 static int 4834 brcmf_cfg80211_change_station(struct wiphy *wiphy, struct net_device *ndev, 4835 const u8 *mac, struct station_parameters *params) 4836 { 4837 struct brcmf_if *ifp = netdev_priv(ndev); 4838 s32 err; 4839 4840 brcmf_dbg(TRACE, "Enter, MAC %pM, mask 0x%04x set 0x%04x\n", mac, 4841 params->sta_flags_mask, params->sta_flags_set); 4842 4843 /* Ignore all 00 MAC */ 4844 if (is_zero_ether_addr(mac)) 4845 return 0; 4846 4847 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED))) 4848 return 0; 4849 4850 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED)) 4851 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SCB_AUTHORIZE, 4852 (void *)mac, ETH_ALEN); 4853 else 4854 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SCB_DEAUTHORIZE, 4855 (void *)mac, ETH_ALEN); 4856 if (err < 0) 4857 brcmf_err("Setting SCB (de-)authorize failed, %d\n", err); 4858 4859 return err; 4860 } 4861 4862 static void 4863 brcmf_cfg80211_mgmt_frame_register(struct wiphy *wiphy, 4864 struct wireless_dev *wdev, 4865 u16 frame_type, bool reg) 4866 { 4867 struct brcmf_cfg80211_vif *vif; 4868 u16 mgmt_type; 4869 4870 brcmf_dbg(TRACE, "Enter, frame_type %04x, reg=%d\n", frame_type, reg); 4871 4872 mgmt_type = (frame_type & IEEE80211_FCTL_STYPE) >> 4; 4873 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev); 4874 if (reg) 4875 vif->mgmt_rx_reg |= BIT(mgmt_type); 4876 else 4877 vif->mgmt_rx_reg &= ~BIT(mgmt_type); 4878 } 4879 4880 4881 static int 4882 brcmf_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, 4883 struct cfg80211_mgmt_tx_params *params, u64 *cookie) 4884 { 4885 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 4886 struct ieee80211_channel *chan = params->chan; 4887 const u8 *buf = params->buf; 4888 size_t len = params->len; 4889 const struct ieee80211_mgmt *mgmt; 4890 struct brcmf_cfg80211_vif *vif; 4891 s32 err = 0; 4892 s32 ie_offset; 4893 s32 ie_len; 4894 struct brcmf_fil_action_frame_le *action_frame; 4895 struct brcmf_fil_af_params_le *af_params; 4896 bool ack; 4897 s32 chan_nr; 4898 u32 freq; 4899 4900 brcmf_dbg(TRACE, "Enter\n"); 4901 4902 *cookie = 0; 4903 4904 mgmt = (const struct ieee80211_mgmt *)buf; 4905 4906 if (!ieee80211_is_mgmt(mgmt->frame_control)) { 4907 brcmf_err("Driver only allows MGMT packet type\n"); 4908 return -EPERM; 4909 } 4910 4911 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev); 4912 4913 if (ieee80211_is_probe_resp(mgmt->frame_control)) { 4914 /* Right now the only reason to get a probe response */ 4915 /* is for p2p listen response or for p2p GO from */ 4916 /* wpa_supplicant. Unfortunately the probe is send */ 4917 /* on primary ndev, while dongle wants it on the p2p */ 4918 /* vif. Since this is only reason for a probe */ 4919 /* response to be sent, the vif is taken from cfg. */ 4920 /* If ever desired to send proberesp for non p2p */ 4921 /* response then data should be checked for */ 4922 /* "DIRECT-". Note in future supplicant will take */ 4923 /* dedicated p2p wdev to do this and then this 'hack'*/ 4924 /* is not needed anymore. */ 4925 ie_offset = DOT11_MGMT_HDR_LEN + 4926 DOT11_BCN_PRB_FIXED_LEN; 4927 ie_len = len - ie_offset; 4928 if (vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif) 4929 vif = cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif; 4930 err = brcmf_vif_set_mgmt_ie(vif, 4931 BRCMF_VNDR_IE_PRBRSP_FLAG, 4932 &buf[ie_offset], 4933 ie_len); 4934 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true, 4935 GFP_KERNEL); 4936 } else if (ieee80211_is_action(mgmt->frame_control)) { 4937 af_params = kzalloc(sizeof(*af_params), GFP_KERNEL); 4938 if (af_params == NULL) { 4939 brcmf_err("unable to allocate frame\n"); 4940 err = -ENOMEM; 4941 goto exit; 4942 } 4943 action_frame = &af_params->action_frame; 4944 /* Add the packet Id */ 4945 action_frame->packet_id = cpu_to_le32(*cookie); 4946 /* Add BSSID */ 4947 memcpy(&action_frame->da[0], &mgmt->da[0], ETH_ALEN); 4948 memcpy(&af_params->bssid[0], &mgmt->bssid[0], ETH_ALEN); 4949 /* Add the length exepted for 802.11 header */ 4950 action_frame->len = cpu_to_le16(len - DOT11_MGMT_HDR_LEN); 4951 /* Add the channel. Use the one specified as parameter if any or 4952 * the current one (got from the firmware) otherwise 4953 */ 4954 if (chan) 4955 freq = chan->center_freq; 4956 else 4957 brcmf_fil_cmd_int_get(vif->ifp, BRCMF_C_GET_CHANNEL, 4958 &freq); 4959 chan_nr = ieee80211_frequency_to_channel(freq); 4960 af_params->channel = cpu_to_le32(chan_nr); 4961 4962 memcpy(action_frame->data, &buf[DOT11_MGMT_HDR_LEN], 4963 le16_to_cpu(action_frame->len)); 4964 4965 brcmf_dbg(TRACE, "Action frame, cookie=%lld, len=%d, freq=%d\n", 4966 *cookie, le16_to_cpu(action_frame->len), freq); 4967 4968 ack = brcmf_p2p_send_action_frame(cfg, cfg_to_ndev(cfg), 4969 af_params); 4970 4971 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, ack, 4972 GFP_KERNEL); 4973 kfree(af_params); 4974 } else { 4975 brcmf_dbg(TRACE, "Unhandled, fc=%04x!!\n", mgmt->frame_control); 4976 brcmf_dbg_hex_dump(true, buf, len, "payload, len=%zu\n", len); 4977 } 4978 4979 exit: 4980 return err; 4981 } 4982 4983 4984 static int 4985 brcmf_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy, 4986 struct wireless_dev *wdev, 4987 u64 cookie) 4988 { 4989 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 4990 struct brcmf_cfg80211_vif *vif; 4991 int err = 0; 4992 4993 brcmf_dbg(TRACE, "Enter p2p listen cancel\n"); 4994 4995 vif = cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif; 4996 if (vif == NULL) { 4997 brcmf_err("No p2p device available for probe response\n"); 4998 err = -ENODEV; 4999 goto exit; 5000 } 5001 brcmf_p2p_cancel_remain_on_channel(vif->ifp); 5002 exit: 5003 return err; 5004 } 5005 5006 static int brcmf_cfg80211_get_channel(struct wiphy *wiphy, 5007 struct wireless_dev *wdev, 5008 struct cfg80211_chan_def *chandef) 5009 { 5010 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 5011 struct net_device *ndev = wdev->netdev; 5012 struct brcmf_if *ifp; 5013 struct brcmu_chan ch; 5014 enum nl80211_band band = 0; 5015 enum nl80211_chan_width width = 0; 5016 u32 chanspec; 5017 int freq, err; 5018 5019 if (!ndev) 5020 return -ENODEV; 5021 ifp = netdev_priv(ndev); 5022 5023 err = brcmf_fil_iovar_int_get(ifp, "chanspec", &chanspec); 5024 if (err) { 5025 brcmf_err("chanspec failed (%d)\n", err); 5026 return err; 5027 } 5028 5029 ch.chspec = chanspec; 5030 cfg->d11inf.decchspec(&ch); 5031 5032 switch (ch.band) { 5033 case BRCMU_CHAN_BAND_2G: 5034 band = NL80211_BAND_2GHZ; 5035 break; 5036 case BRCMU_CHAN_BAND_5G: 5037 band = NL80211_BAND_5GHZ; 5038 break; 5039 } 5040 5041 switch (ch.bw) { 5042 case BRCMU_CHAN_BW_80: 5043 width = NL80211_CHAN_WIDTH_80; 5044 break; 5045 case BRCMU_CHAN_BW_40: 5046 width = NL80211_CHAN_WIDTH_40; 5047 break; 5048 case BRCMU_CHAN_BW_20: 5049 width = NL80211_CHAN_WIDTH_20; 5050 break; 5051 case BRCMU_CHAN_BW_80P80: 5052 width = NL80211_CHAN_WIDTH_80P80; 5053 break; 5054 case BRCMU_CHAN_BW_160: 5055 width = NL80211_CHAN_WIDTH_160; 5056 break; 5057 } 5058 5059 freq = ieee80211_channel_to_frequency(ch.control_ch_num, band); 5060 chandef->chan = ieee80211_get_channel(wiphy, freq); 5061 chandef->width = width; 5062 chandef->center_freq1 = ieee80211_channel_to_frequency(ch.chnum, band); 5063 chandef->center_freq2 = 0; 5064 5065 return 0; 5066 } 5067 5068 static int brcmf_cfg80211_crit_proto_start(struct wiphy *wiphy, 5069 struct wireless_dev *wdev, 5070 enum nl80211_crit_proto_id proto, 5071 u16 duration) 5072 { 5073 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 5074 struct brcmf_cfg80211_vif *vif; 5075 5076 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev); 5077 5078 /* only DHCP support for now */ 5079 if (proto != NL80211_CRIT_PROTO_DHCP) 5080 return -EINVAL; 5081 5082 /* suppress and abort scanning */ 5083 set_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status); 5084 brcmf_abort_scanning(cfg); 5085 5086 return brcmf_btcoex_set_mode(vif, BRCMF_BTCOEX_DISABLED, duration); 5087 } 5088 5089 static void brcmf_cfg80211_crit_proto_stop(struct wiphy *wiphy, 5090 struct wireless_dev *wdev) 5091 { 5092 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 5093 struct brcmf_cfg80211_vif *vif; 5094 5095 vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev); 5096 5097 brcmf_btcoex_set_mode(vif, BRCMF_BTCOEX_ENABLED, 0); 5098 clear_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status); 5099 } 5100 5101 static s32 5102 brcmf_notify_tdls_peer_event(struct brcmf_if *ifp, 5103 const struct brcmf_event_msg *e, void *data) 5104 { 5105 switch (e->reason) { 5106 case BRCMF_E_REASON_TDLS_PEER_DISCOVERED: 5107 brcmf_dbg(TRACE, "TDLS Peer Discovered\n"); 5108 break; 5109 case BRCMF_E_REASON_TDLS_PEER_CONNECTED: 5110 brcmf_dbg(TRACE, "TDLS Peer Connected\n"); 5111 brcmf_proto_add_tdls_peer(ifp->drvr, ifp->ifidx, (u8 *)e->addr); 5112 break; 5113 case BRCMF_E_REASON_TDLS_PEER_DISCONNECTED: 5114 brcmf_dbg(TRACE, "TDLS Peer Disconnected\n"); 5115 brcmf_proto_delete_peer(ifp->drvr, ifp->ifidx, (u8 *)e->addr); 5116 break; 5117 } 5118 5119 return 0; 5120 } 5121 5122 static int brcmf_convert_nl80211_tdls_oper(enum nl80211_tdls_operation oper) 5123 { 5124 int ret; 5125 5126 switch (oper) { 5127 case NL80211_TDLS_DISCOVERY_REQ: 5128 ret = BRCMF_TDLS_MANUAL_EP_DISCOVERY; 5129 break; 5130 case NL80211_TDLS_SETUP: 5131 ret = BRCMF_TDLS_MANUAL_EP_CREATE; 5132 break; 5133 case NL80211_TDLS_TEARDOWN: 5134 ret = BRCMF_TDLS_MANUAL_EP_DELETE; 5135 break; 5136 default: 5137 brcmf_err("unsupported operation: %d\n", oper); 5138 ret = -EOPNOTSUPP; 5139 } 5140 return ret; 5141 } 5142 5143 static int brcmf_cfg80211_tdls_oper(struct wiphy *wiphy, 5144 struct net_device *ndev, const u8 *peer, 5145 enum nl80211_tdls_operation oper) 5146 { 5147 struct brcmf_if *ifp; 5148 struct brcmf_tdls_iovar_le info; 5149 int ret = 0; 5150 5151 ret = brcmf_convert_nl80211_tdls_oper(oper); 5152 if (ret < 0) 5153 return ret; 5154 5155 ifp = netdev_priv(ndev); 5156 memset(&info, 0, sizeof(info)); 5157 info.mode = (u8)ret; 5158 if (peer) 5159 memcpy(info.ea, peer, ETH_ALEN); 5160 5161 ret = brcmf_fil_iovar_data_set(ifp, "tdls_endpoint", 5162 &info, sizeof(info)); 5163 if (ret < 0) 5164 brcmf_err("tdls_endpoint iovar failed: ret=%d\n", ret); 5165 5166 return ret; 5167 } 5168 5169 static int 5170 brcmf_cfg80211_update_conn_params(struct wiphy *wiphy, 5171 struct net_device *ndev, 5172 struct cfg80211_connect_params *sme, 5173 u32 changed) 5174 { 5175 struct brcmf_if *ifp; 5176 int err; 5177 5178 if (!(changed & UPDATE_ASSOC_IES)) 5179 return 0; 5180 5181 ifp = netdev_priv(ndev); 5182 err = brcmf_vif_set_mgmt_ie(ifp->vif, BRCMF_VNDR_IE_ASSOCREQ_FLAG, 5183 sme->ie, sme->ie_len); 5184 if (err) 5185 brcmf_err("Set Assoc REQ IE Failed\n"); 5186 else 5187 brcmf_dbg(TRACE, "Applied Vndr IEs for Assoc request\n"); 5188 5189 return err; 5190 } 5191 5192 #ifdef CONFIG_PM 5193 static int 5194 brcmf_cfg80211_set_rekey_data(struct wiphy *wiphy, struct net_device *ndev, 5195 struct cfg80211_gtk_rekey_data *gtk) 5196 { 5197 struct brcmf_if *ifp = netdev_priv(ndev); 5198 struct brcmf_gtk_keyinfo_le gtk_le; 5199 int ret; 5200 5201 brcmf_dbg(TRACE, "Enter, bssidx=%d\n", ifp->bsscfgidx); 5202 5203 memcpy(gtk_le.kck, gtk->kck, sizeof(gtk_le.kck)); 5204 memcpy(gtk_le.kek, gtk->kek, sizeof(gtk_le.kek)); 5205 memcpy(gtk_le.replay_counter, gtk->replay_ctr, 5206 sizeof(gtk_le.replay_counter)); 5207 5208 ret = brcmf_fil_iovar_data_set(ifp, "gtk_key_info", >k_le, 5209 sizeof(gtk_le)); 5210 if (ret < 0) 5211 brcmf_err("gtk_key_info iovar failed: ret=%d\n", ret); 5212 5213 return ret; 5214 } 5215 #endif 5216 5217 static int brcmf_cfg80211_set_pmk(struct wiphy *wiphy, struct net_device *dev, 5218 const struct cfg80211_pmk_conf *conf) 5219 { 5220 struct brcmf_if *ifp; 5221 5222 brcmf_dbg(TRACE, "enter\n"); 5223 5224 /* expect using firmware supplicant for 1X */ 5225 ifp = netdev_priv(dev); 5226 if (WARN_ON(ifp->vif->profile.use_fwsup != BRCMF_PROFILE_FWSUP_1X)) 5227 return -EINVAL; 5228 5229 return brcmf_set_pmk(ifp, conf->pmk, conf->pmk_len); 5230 } 5231 5232 static int brcmf_cfg80211_del_pmk(struct wiphy *wiphy, struct net_device *dev, 5233 const u8 *aa) 5234 { 5235 struct brcmf_if *ifp; 5236 5237 brcmf_dbg(TRACE, "enter\n"); 5238 ifp = netdev_priv(dev); 5239 if (WARN_ON(ifp->vif->profile.use_fwsup != BRCMF_PROFILE_FWSUP_1X)) 5240 return -EINVAL; 5241 5242 return brcmf_set_pmk(ifp, NULL, 0); 5243 } 5244 5245 static struct cfg80211_ops brcmf_cfg80211_ops = { 5246 .add_virtual_intf = brcmf_cfg80211_add_iface, 5247 .del_virtual_intf = brcmf_cfg80211_del_iface, 5248 .change_virtual_intf = brcmf_cfg80211_change_iface, 5249 .scan = brcmf_cfg80211_scan, 5250 .set_wiphy_params = brcmf_cfg80211_set_wiphy_params, 5251 .join_ibss = brcmf_cfg80211_join_ibss, 5252 .leave_ibss = brcmf_cfg80211_leave_ibss, 5253 .get_station = brcmf_cfg80211_get_station, 5254 .dump_station = brcmf_cfg80211_dump_station, 5255 .set_tx_power = brcmf_cfg80211_set_tx_power, 5256 .get_tx_power = brcmf_cfg80211_get_tx_power, 5257 .add_key = brcmf_cfg80211_add_key, 5258 .del_key = brcmf_cfg80211_del_key, 5259 .get_key = brcmf_cfg80211_get_key, 5260 .set_default_key = brcmf_cfg80211_config_default_key, 5261 .set_default_mgmt_key = brcmf_cfg80211_config_default_mgmt_key, 5262 .set_power_mgmt = brcmf_cfg80211_set_power_mgmt, 5263 .connect = brcmf_cfg80211_connect, 5264 .disconnect = brcmf_cfg80211_disconnect, 5265 .suspend = brcmf_cfg80211_suspend, 5266 .resume = brcmf_cfg80211_resume, 5267 .set_pmksa = brcmf_cfg80211_set_pmksa, 5268 .del_pmksa = brcmf_cfg80211_del_pmksa, 5269 .flush_pmksa = brcmf_cfg80211_flush_pmksa, 5270 .start_ap = brcmf_cfg80211_start_ap, 5271 .stop_ap = brcmf_cfg80211_stop_ap, 5272 .change_beacon = brcmf_cfg80211_change_beacon, 5273 .del_station = brcmf_cfg80211_del_station, 5274 .change_station = brcmf_cfg80211_change_station, 5275 .sched_scan_start = brcmf_cfg80211_sched_scan_start, 5276 .sched_scan_stop = brcmf_cfg80211_sched_scan_stop, 5277 .mgmt_frame_register = brcmf_cfg80211_mgmt_frame_register, 5278 .mgmt_tx = brcmf_cfg80211_mgmt_tx, 5279 .remain_on_channel = brcmf_p2p_remain_on_channel, 5280 .cancel_remain_on_channel = brcmf_cfg80211_cancel_remain_on_channel, 5281 .get_channel = brcmf_cfg80211_get_channel, 5282 .start_p2p_device = brcmf_p2p_start_device, 5283 .stop_p2p_device = brcmf_p2p_stop_device, 5284 .crit_proto_start = brcmf_cfg80211_crit_proto_start, 5285 .crit_proto_stop = brcmf_cfg80211_crit_proto_stop, 5286 .tdls_oper = brcmf_cfg80211_tdls_oper, 5287 .update_connect_params = brcmf_cfg80211_update_conn_params, 5288 .set_pmk = brcmf_cfg80211_set_pmk, 5289 .del_pmk = brcmf_cfg80211_del_pmk, 5290 }; 5291 5292 struct brcmf_cfg80211_vif *brcmf_alloc_vif(struct brcmf_cfg80211_info *cfg, 5293 enum nl80211_iftype type) 5294 { 5295 struct brcmf_cfg80211_vif *vif_walk; 5296 struct brcmf_cfg80211_vif *vif; 5297 bool mbss; 5298 5299 brcmf_dbg(TRACE, "allocating virtual interface (size=%zu)\n", 5300 sizeof(*vif)); 5301 vif = kzalloc(sizeof(*vif), GFP_KERNEL); 5302 if (!vif) 5303 return ERR_PTR(-ENOMEM); 5304 5305 vif->wdev.wiphy = cfg->wiphy; 5306 vif->wdev.iftype = type; 5307 5308 brcmf_init_prof(&vif->profile); 5309 5310 if (type == NL80211_IFTYPE_AP) { 5311 mbss = false; 5312 list_for_each_entry(vif_walk, &cfg->vif_list, list) { 5313 if (vif_walk->wdev.iftype == NL80211_IFTYPE_AP) { 5314 mbss = true; 5315 break; 5316 } 5317 } 5318 vif->mbss = mbss; 5319 } 5320 5321 list_add_tail(&vif->list, &cfg->vif_list); 5322 return vif; 5323 } 5324 5325 void brcmf_free_vif(struct brcmf_cfg80211_vif *vif) 5326 { 5327 list_del(&vif->list); 5328 kfree(vif); 5329 } 5330 5331 void brcmf_cfg80211_free_netdev(struct net_device *ndev) 5332 { 5333 struct brcmf_cfg80211_vif *vif; 5334 struct brcmf_if *ifp; 5335 5336 ifp = netdev_priv(ndev); 5337 vif = ifp->vif; 5338 5339 if (vif) 5340 brcmf_free_vif(vif); 5341 } 5342 5343 static bool brcmf_is_linkup(struct brcmf_cfg80211_vif *vif, 5344 const struct brcmf_event_msg *e) 5345 { 5346 u32 event = e->event_code; 5347 u32 status = e->status; 5348 5349 if (vif->profile.use_fwsup == BRCMF_PROFILE_FWSUP_PSK && 5350 event == BRCMF_E_PSK_SUP && 5351 status == BRCMF_E_STATUS_FWSUP_COMPLETED) 5352 set_bit(BRCMF_VIF_STATUS_EAP_SUCCESS, &vif->sme_state); 5353 if (event == BRCMF_E_SET_SSID && status == BRCMF_E_STATUS_SUCCESS) { 5354 brcmf_dbg(CONN, "Processing set ssid\n"); 5355 memcpy(vif->profile.bssid, e->addr, ETH_ALEN); 5356 if (vif->profile.use_fwsup != BRCMF_PROFILE_FWSUP_PSK) 5357 return true; 5358 5359 set_bit(BRCMF_VIF_STATUS_ASSOC_SUCCESS, &vif->sme_state); 5360 } 5361 5362 if (test_bit(BRCMF_VIF_STATUS_EAP_SUCCESS, &vif->sme_state) && 5363 test_bit(BRCMF_VIF_STATUS_ASSOC_SUCCESS, &vif->sme_state)) { 5364 clear_bit(BRCMF_VIF_STATUS_EAP_SUCCESS, &vif->sme_state); 5365 clear_bit(BRCMF_VIF_STATUS_ASSOC_SUCCESS, &vif->sme_state); 5366 return true; 5367 } 5368 return false; 5369 } 5370 5371 static bool brcmf_is_linkdown(const struct brcmf_event_msg *e) 5372 { 5373 u32 event = e->event_code; 5374 u16 flags = e->flags; 5375 5376 if ((event == BRCMF_E_DEAUTH) || (event == BRCMF_E_DEAUTH_IND) || 5377 (event == BRCMF_E_DISASSOC_IND) || 5378 ((event == BRCMF_E_LINK) && (!(flags & BRCMF_EVENT_MSG_LINK)))) { 5379 brcmf_dbg(CONN, "Processing link down\n"); 5380 return true; 5381 } 5382 return false; 5383 } 5384 5385 static bool brcmf_is_nonetwork(struct brcmf_cfg80211_info *cfg, 5386 const struct brcmf_event_msg *e) 5387 { 5388 u32 event = e->event_code; 5389 u32 status = e->status; 5390 5391 if (event == BRCMF_E_LINK && status == BRCMF_E_STATUS_NO_NETWORKS) { 5392 brcmf_dbg(CONN, "Processing Link %s & no network found\n", 5393 e->flags & BRCMF_EVENT_MSG_LINK ? "up" : "down"); 5394 return true; 5395 } 5396 5397 if (event == BRCMF_E_SET_SSID && status != BRCMF_E_STATUS_SUCCESS) { 5398 brcmf_dbg(CONN, "Processing connecting & no network found\n"); 5399 return true; 5400 } 5401 5402 if (event == BRCMF_E_PSK_SUP && 5403 status != BRCMF_E_STATUS_FWSUP_COMPLETED) { 5404 brcmf_dbg(CONN, "Processing failed supplicant state: %u\n", 5405 status); 5406 return true; 5407 } 5408 5409 return false; 5410 } 5411 5412 static void brcmf_clear_assoc_ies(struct brcmf_cfg80211_info *cfg) 5413 { 5414 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg); 5415 5416 kfree(conn_info->req_ie); 5417 conn_info->req_ie = NULL; 5418 conn_info->req_ie_len = 0; 5419 kfree(conn_info->resp_ie); 5420 conn_info->resp_ie = NULL; 5421 conn_info->resp_ie_len = 0; 5422 } 5423 5424 static s32 brcmf_get_assoc_ies(struct brcmf_cfg80211_info *cfg, 5425 struct brcmf_if *ifp) 5426 { 5427 struct brcmf_cfg80211_assoc_ielen_le *assoc_info; 5428 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg); 5429 u32 req_len; 5430 u32 resp_len; 5431 s32 err = 0; 5432 5433 brcmf_clear_assoc_ies(cfg); 5434 5435 err = brcmf_fil_iovar_data_get(ifp, "assoc_info", 5436 cfg->extra_buf, WL_ASSOC_INFO_MAX); 5437 if (err) { 5438 brcmf_err("could not get assoc info (%d)\n", err); 5439 return err; 5440 } 5441 assoc_info = 5442 (struct brcmf_cfg80211_assoc_ielen_le *)cfg->extra_buf; 5443 req_len = le32_to_cpu(assoc_info->req_len); 5444 resp_len = le32_to_cpu(assoc_info->resp_len); 5445 if (req_len) { 5446 err = brcmf_fil_iovar_data_get(ifp, "assoc_req_ies", 5447 cfg->extra_buf, 5448 WL_ASSOC_INFO_MAX); 5449 if (err) { 5450 brcmf_err("could not get assoc req (%d)\n", err); 5451 return err; 5452 } 5453 conn_info->req_ie_len = req_len; 5454 conn_info->req_ie = 5455 kmemdup(cfg->extra_buf, conn_info->req_ie_len, 5456 GFP_KERNEL); 5457 } else { 5458 conn_info->req_ie_len = 0; 5459 conn_info->req_ie = NULL; 5460 } 5461 if (resp_len) { 5462 err = brcmf_fil_iovar_data_get(ifp, "assoc_resp_ies", 5463 cfg->extra_buf, 5464 WL_ASSOC_INFO_MAX); 5465 if (err) { 5466 brcmf_err("could not get assoc resp (%d)\n", err); 5467 return err; 5468 } 5469 conn_info->resp_ie_len = resp_len; 5470 conn_info->resp_ie = 5471 kmemdup(cfg->extra_buf, conn_info->resp_ie_len, 5472 GFP_KERNEL); 5473 } else { 5474 conn_info->resp_ie_len = 0; 5475 conn_info->resp_ie = NULL; 5476 } 5477 brcmf_dbg(CONN, "req len (%d) resp len (%d)\n", 5478 conn_info->req_ie_len, conn_info->resp_ie_len); 5479 5480 return err; 5481 } 5482 5483 static s32 5484 brcmf_bss_roaming_done(struct brcmf_cfg80211_info *cfg, 5485 struct net_device *ndev, 5486 const struct brcmf_event_msg *e) 5487 { 5488 struct brcmf_if *ifp = netdev_priv(ndev); 5489 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile; 5490 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg); 5491 struct wiphy *wiphy = cfg_to_wiphy(cfg); 5492 struct ieee80211_channel *notify_channel = NULL; 5493 struct ieee80211_supported_band *band; 5494 struct brcmf_bss_info_le *bi; 5495 struct brcmu_chan ch; 5496 struct cfg80211_roam_info roam_info = {}; 5497 u32 freq; 5498 s32 err = 0; 5499 u8 *buf; 5500 5501 brcmf_dbg(TRACE, "Enter\n"); 5502 5503 brcmf_get_assoc_ies(cfg, ifp); 5504 memcpy(profile->bssid, e->addr, ETH_ALEN); 5505 brcmf_update_bss_info(cfg, ifp); 5506 5507 buf = kzalloc(WL_BSS_INFO_MAX, GFP_KERNEL); 5508 if (buf == NULL) { 5509 err = -ENOMEM; 5510 goto done; 5511 } 5512 5513 /* data sent to dongle has to be little endian */ 5514 *(__le32 *)buf = cpu_to_le32(WL_BSS_INFO_MAX); 5515 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BSS_INFO, 5516 buf, WL_BSS_INFO_MAX); 5517 5518 if (err) 5519 goto done; 5520 5521 bi = (struct brcmf_bss_info_le *)(buf + 4); 5522 ch.chspec = le16_to_cpu(bi->chanspec); 5523 cfg->d11inf.decchspec(&ch); 5524 5525 if (ch.band == BRCMU_CHAN_BAND_2G) 5526 band = wiphy->bands[NL80211_BAND_2GHZ]; 5527 else 5528 band = wiphy->bands[NL80211_BAND_5GHZ]; 5529 5530 freq = ieee80211_channel_to_frequency(ch.control_ch_num, band->band); 5531 notify_channel = ieee80211_get_channel(wiphy, freq); 5532 5533 done: 5534 kfree(buf); 5535 5536 roam_info.channel = notify_channel; 5537 roam_info.bssid = profile->bssid; 5538 roam_info.req_ie = conn_info->req_ie; 5539 roam_info.req_ie_len = conn_info->req_ie_len; 5540 roam_info.resp_ie = conn_info->resp_ie; 5541 roam_info.resp_ie_len = conn_info->resp_ie_len; 5542 5543 cfg80211_roamed(ndev, &roam_info, GFP_KERNEL); 5544 brcmf_dbg(CONN, "Report roaming result\n"); 5545 5546 set_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state); 5547 brcmf_dbg(TRACE, "Exit\n"); 5548 return err; 5549 } 5550 5551 static s32 5552 brcmf_bss_connect_done(struct brcmf_cfg80211_info *cfg, 5553 struct net_device *ndev, const struct brcmf_event_msg *e, 5554 bool completed) 5555 { 5556 struct brcmf_if *ifp = netdev_priv(ndev); 5557 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile; 5558 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg); 5559 struct cfg80211_connect_resp_params conn_params; 5560 5561 brcmf_dbg(TRACE, "Enter\n"); 5562 5563 if (test_and_clear_bit(BRCMF_VIF_STATUS_CONNECTING, 5564 &ifp->vif->sme_state)) { 5565 memset(&conn_params, 0, sizeof(conn_params)); 5566 if (completed) { 5567 brcmf_get_assoc_ies(cfg, ifp); 5568 brcmf_update_bss_info(cfg, ifp); 5569 set_bit(BRCMF_VIF_STATUS_CONNECTED, 5570 &ifp->vif->sme_state); 5571 conn_params.status = WLAN_STATUS_SUCCESS; 5572 } else { 5573 conn_params.status = WLAN_STATUS_AUTH_TIMEOUT; 5574 } 5575 conn_params.bssid = profile->bssid; 5576 conn_params.req_ie = conn_info->req_ie; 5577 conn_params.req_ie_len = conn_info->req_ie_len; 5578 conn_params.resp_ie = conn_info->resp_ie; 5579 conn_params.resp_ie_len = conn_info->resp_ie_len; 5580 cfg80211_connect_done(ndev, &conn_params, GFP_KERNEL); 5581 brcmf_dbg(CONN, "Report connect result - connection %s\n", 5582 completed ? "succeeded" : "failed"); 5583 } 5584 brcmf_dbg(TRACE, "Exit\n"); 5585 return 0; 5586 } 5587 5588 static s32 5589 brcmf_notify_connect_status_ap(struct brcmf_cfg80211_info *cfg, 5590 struct net_device *ndev, 5591 const struct brcmf_event_msg *e, void *data) 5592 { 5593 static int generation; 5594 u32 event = e->event_code; 5595 u32 reason = e->reason; 5596 struct station_info sinfo; 5597 5598 brcmf_dbg(CONN, "event %s (%u), reason %d\n", 5599 brcmf_fweh_event_name(event), event, reason); 5600 if (event == BRCMF_E_LINK && reason == BRCMF_E_REASON_LINK_BSSCFG_DIS && 5601 ndev != cfg_to_ndev(cfg)) { 5602 brcmf_dbg(CONN, "AP mode link down\n"); 5603 complete(&cfg->vif_disabled); 5604 return 0; 5605 } 5606 5607 if (((event == BRCMF_E_ASSOC_IND) || (event == BRCMF_E_REASSOC_IND)) && 5608 (reason == BRCMF_E_STATUS_SUCCESS)) { 5609 memset(&sinfo, 0, sizeof(sinfo)); 5610 if (!data) { 5611 brcmf_err("No IEs present in ASSOC/REASSOC_IND"); 5612 return -EINVAL; 5613 } 5614 sinfo.assoc_req_ies = data; 5615 sinfo.assoc_req_ies_len = e->datalen; 5616 generation++; 5617 sinfo.generation = generation; 5618 cfg80211_new_sta(ndev, e->addr, &sinfo, GFP_KERNEL); 5619 } else if ((event == BRCMF_E_DISASSOC_IND) || 5620 (event == BRCMF_E_DEAUTH_IND) || 5621 (event == BRCMF_E_DEAUTH)) { 5622 cfg80211_del_sta(ndev, e->addr, GFP_KERNEL); 5623 } 5624 return 0; 5625 } 5626 5627 static s32 5628 brcmf_notify_connect_status(struct brcmf_if *ifp, 5629 const struct brcmf_event_msg *e, void *data) 5630 { 5631 struct brcmf_cfg80211_info *cfg = ifp->drvr->config; 5632 struct net_device *ndev = ifp->ndev; 5633 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile; 5634 struct ieee80211_channel *chan; 5635 s32 err = 0; 5636 5637 if ((e->event_code == BRCMF_E_DEAUTH) || 5638 (e->event_code == BRCMF_E_DEAUTH_IND) || 5639 (e->event_code == BRCMF_E_DISASSOC_IND) || 5640 ((e->event_code == BRCMF_E_LINK) && (!e->flags))) { 5641 brcmf_proto_delete_peer(ifp->drvr, ifp->ifidx, (u8 *)e->addr); 5642 } 5643 5644 if (brcmf_is_apmode(ifp->vif)) { 5645 err = brcmf_notify_connect_status_ap(cfg, ndev, e, data); 5646 } else if (brcmf_is_linkup(ifp->vif, e)) { 5647 brcmf_dbg(CONN, "Linkup\n"); 5648 if (brcmf_is_ibssmode(ifp->vif)) { 5649 brcmf_inform_ibss(cfg, ndev, e->addr); 5650 chan = ieee80211_get_channel(cfg->wiphy, cfg->channel); 5651 memcpy(profile->bssid, e->addr, ETH_ALEN); 5652 cfg80211_ibss_joined(ndev, e->addr, chan, GFP_KERNEL); 5653 clear_bit(BRCMF_VIF_STATUS_CONNECTING, 5654 &ifp->vif->sme_state); 5655 set_bit(BRCMF_VIF_STATUS_CONNECTED, 5656 &ifp->vif->sme_state); 5657 } else 5658 brcmf_bss_connect_done(cfg, ndev, e, true); 5659 brcmf_net_setcarrier(ifp, true); 5660 } else if (brcmf_is_linkdown(e)) { 5661 brcmf_dbg(CONN, "Linkdown\n"); 5662 if (!brcmf_is_ibssmode(ifp->vif)) { 5663 brcmf_bss_connect_done(cfg, ndev, e, false); 5664 brcmf_link_down(ifp->vif, 5665 brcmf_map_fw_linkdown_reason(e)); 5666 brcmf_init_prof(ndev_to_prof(ndev)); 5667 if (ndev != cfg_to_ndev(cfg)) 5668 complete(&cfg->vif_disabled); 5669 brcmf_net_setcarrier(ifp, false); 5670 } 5671 } else if (brcmf_is_nonetwork(cfg, e)) { 5672 if (brcmf_is_ibssmode(ifp->vif)) 5673 clear_bit(BRCMF_VIF_STATUS_CONNECTING, 5674 &ifp->vif->sme_state); 5675 else 5676 brcmf_bss_connect_done(cfg, ndev, e, false); 5677 } 5678 5679 return err; 5680 } 5681 5682 static s32 5683 brcmf_notify_roaming_status(struct brcmf_if *ifp, 5684 const struct brcmf_event_msg *e, void *data) 5685 { 5686 struct brcmf_cfg80211_info *cfg = ifp->drvr->config; 5687 u32 event = e->event_code; 5688 u32 status = e->status; 5689 5690 if (event == BRCMF_E_ROAM && status == BRCMF_E_STATUS_SUCCESS) { 5691 if (test_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state)) 5692 brcmf_bss_roaming_done(cfg, ifp->ndev, e); 5693 else 5694 brcmf_bss_connect_done(cfg, ifp->ndev, e, true); 5695 } 5696 5697 return 0; 5698 } 5699 5700 static s32 5701 brcmf_notify_mic_status(struct brcmf_if *ifp, 5702 const struct brcmf_event_msg *e, void *data) 5703 { 5704 u16 flags = e->flags; 5705 enum nl80211_key_type key_type; 5706 5707 if (flags & BRCMF_EVENT_MSG_GROUP) 5708 key_type = NL80211_KEYTYPE_GROUP; 5709 else 5710 key_type = NL80211_KEYTYPE_PAIRWISE; 5711 5712 cfg80211_michael_mic_failure(ifp->ndev, (u8 *)&e->addr, key_type, -1, 5713 NULL, GFP_KERNEL); 5714 5715 return 0; 5716 } 5717 5718 static s32 brcmf_notify_vif_event(struct brcmf_if *ifp, 5719 const struct brcmf_event_msg *e, void *data) 5720 { 5721 struct brcmf_cfg80211_info *cfg = ifp->drvr->config; 5722 struct brcmf_if_event *ifevent = (struct brcmf_if_event *)data; 5723 struct brcmf_cfg80211_vif_event *event = &cfg->vif_event; 5724 struct brcmf_cfg80211_vif *vif; 5725 5726 brcmf_dbg(TRACE, "Enter: action %u flags %u ifidx %u bsscfgidx %u\n", 5727 ifevent->action, ifevent->flags, ifevent->ifidx, 5728 ifevent->bsscfgidx); 5729 5730 spin_lock(&event->vif_event_lock); 5731 event->action = ifevent->action; 5732 vif = event->vif; 5733 5734 switch (ifevent->action) { 5735 case BRCMF_E_IF_ADD: 5736 /* waiting process may have timed out */ 5737 if (!cfg->vif_event.vif) { 5738 spin_unlock(&event->vif_event_lock); 5739 return -EBADF; 5740 } 5741 5742 ifp->vif = vif; 5743 vif->ifp = ifp; 5744 if (ifp->ndev) { 5745 vif->wdev.netdev = ifp->ndev; 5746 ifp->ndev->ieee80211_ptr = &vif->wdev; 5747 SET_NETDEV_DEV(ifp->ndev, wiphy_dev(cfg->wiphy)); 5748 } 5749 spin_unlock(&event->vif_event_lock); 5750 wake_up(&event->vif_wq); 5751 return 0; 5752 5753 case BRCMF_E_IF_DEL: 5754 spin_unlock(&event->vif_event_lock); 5755 /* event may not be upon user request */ 5756 if (brcmf_cfg80211_vif_event_armed(cfg)) 5757 wake_up(&event->vif_wq); 5758 return 0; 5759 5760 case BRCMF_E_IF_CHANGE: 5761 spin_unlock(&event->vif_event_lock); 5762 wake_up(&event->vif_wq); 5763 return 0; 5764 5765 default: 5766 spin_unlock(&event->vif_event_lock); 5767 break; 5768 } 5769 return -EINVAL; 5770 } 5771 5772 static void brcmf_init_conf(struct brcmf_cfg80211_conf *conf) 5773 { 5774 conf->frag_threshold = (u32)-1; 5775 conf->rts_threshold = (u32)-1; 5776 conf->retry_short = (u32)-1; 5777 conf->retry_long = (u32)-1; 5778 } 5779 5780 static void brcmf_register_event_handlers(struct brcmf_cfg80211_info *cfg) 5781 { 5782 brcmf_fweh_register(cfg->pub, BRCMF_E_LINK, 5783 brcmf_notify_connect_status); 5784 brcmf_fweh_register(cfg->pub, BRCMF_E_DEAUTH_IND, 5785 brcmf_notify_connect_status); 5786 brcmf_fweh_register(cfg->pub, BRCMF_E_DEAUTH, 5787 brcmf_notify_connect_status); 5788 brcmf_fweh_register(cfg->pub, BRCMF_E_DISASSOC_IND, 5789 brcmf_notify_connect_status); 5790 brcmf_fweh_register(cfg->pub, BRCMF_E_ASSOC_IND, 5791 brcmf_notify_connect_status); 5792 brcmf_fweh_register(cfg->pub, BRCMF_E_REASSOC_IND, 5793 brcmf_notify_connect_status); 5794 brcmf_fweh_register(cfg->pub, BRCMF_E_ROAM, 5795 brcmf_notify_roaming_status); 5796 brcmf_fweh_register(cfg->pub, BRCMF_E_MIC_ERROR, 5797 brcmf_notify_mic_status); 5798 brcmf_fweh_register(cfg->pub, BRCMF_E_SET_SSID, 5799 brcmf_notify_connect_status); 5800 brcmf_fweh_register(cfg->pub, BRCMF_E_PFN_NET_FOUND, 5801 brcmf_notify_sched_scan_results); 5802 brcmf_fweh_register(cfg->pub, BRCMF_E_IF, 5803 brcmf_notify_vif_event); 5804 brcmf_fweh_register(cfg->pub, BRCMF_E_P2P_PROBEREQ_MSG, 5805 brcmf_p2p_notify_rx_mgmt_p2p_probereq); 5806 brcmf_fweh_register(cfg->pub, BRCMF_E_P2P_DISC_LISTEN_COMPLETE, 5807 brcmf_p2p_notify_listen_complete); 5808 brcmf_fweh_register(cfg->pub, BRCMF_E_ACTION_FRAME_RX, 5809 brcmf_p2p_notify_action_frame_rx); 5810 brcmf_fweh_register(cfg->pub, BRCMF_E_ACTION_FRAME_COMPLETE, 5811 brcmf_p2p_notify_action_tx_complete); 5812 brcmf_fweh_register(cfg->pub, BRCMF_E_ACTION_FRAME_OFF_CHAN_COMPLETE, 5813 brcmf_p2p_notify_action_tx_complete); 5814 brcmf_fweh_register(cfg->pub, BRCMF_E_PSK_SUP, 5815 brcmf_notify_connect_status); 5816 } 5817 5818 static void brcmf_deinit_priv_mem(struct brcmf_cfg80211_info *cfg) 5819 { 5820 kfree(cfg->conf); 5821 cfg->conf = NULL; 5822 kfree(cfg->extra_buf); 5823 cfg->extra_buf = NULL; 5824 kfree(cfg->wowl.nd); 5825 cfg->wowl.nd = NULL; 5826 kfree(cfg->wowl.nd_info); 5827 cfg->wowl.nd_info = NULL; 5828 kfree(cfg->escan_info.escan_buf); 5829 cfg->escan_info.escan_buf = NULL; 5830 } 5831 5832 static s32 brcmf_init_priv_mem(struct brcmf_cfg80211_info *cfg) 5833 { 5834 cfg->conf = kzalloc(sizeof(*cfg->conf), GFP_KERNEL); 5835 if (!cfg->conf) 5836 goto init_priv_mem_out; 5837 cfg->extra_buf = kzalloc(WL_EXTRA_BUF_MAX, GFP_KERNEL); 5838 if (!cfg->extra_buf) 5839 goto init_priv_mem_out; 5840 cfg->wowl.nd = kzalloc(sizeof(*cfg->wowl.nd) + sizeof(u32), GFP_KERNEL); 5841 if (!cfg->wowl.nd) 5842 goto init_priv_mem_out; 5843 cfg->wowl.nd_info = kzalloc(sizeof(*cfg->wowl.nd_info) + 5844 sizeof(struct cfg80211_wowlan_nd_match *), 5845 GFP_KERNEL); 5846 if (!cfg->wowl.nd_info) 5847 goto init_priv_mem_out; 5848 cfg->escan_info.escan_buf = kzalloc(BRCMF_ESCAN_BUF_SIZE, GFP_KERNEL); 5849 if (!cfg->escan_info.escan_buf) 5850 goto init_priv_mem_out; 5851 5852 return 0; 5853 5854 init_priv_mem_out: 5855 brcmf_deinit_priv_mem(cfg); 5856 5857 return -ENOMEM; 5858 } 5859 5860 static s32 wl_init_priv(struct brcmf_cfg80211_info *cfg) 5861 { 5862 s32 err = 0; 5863 5864 cfg->scan_request = NULL; 5865 cfg->pwr_save = true; 5866 cfg->active_scan = true; /* we do active scan per default */ 5867 cfg->dongle_up = false; /* dongle is not up yet */ 5868 err = brcmf_init_priv_mem(cfg); 5869 if (err) 5870 return err; 5871 brcmf_register_event_handlers(cfg); 5872 mutex_init(&cfg->usr_sync); 5873 brcmf_init_escan(cfg); 5874 brcmf_init_conf(cfg->conf); 5875 init_completion(&cfg->vif_disabled); 5876 return err; 5877 } 5878 5879 static void wl_deinit_priv(struct brcmf_cfg80211_info *cfg) 5880 { 5881 cfg->dongle_up = false; /* dongle down */ 5882 brcmf_abort_scanning(cfg); 5883 brcmf_deinit_priv_mem(cfg); 5884 } 5885 5886 static void init_vif_event(struct brcmf_cfg80211_vif_event *event) 5887 { 5888 init_waitqueue_head(&event->vif_wq); 5889 spin_lock_init(&event->vif_event_lock); 5890 } 5891 5892 static s32 brcmf_dongle_roam(struct brcmf_if *ifp) 5893 { 5894 s32 err; 5895 u32 bcn_timeout; 5896 __le32 roamtrigger[2]; 5897 __le32 roam_delta[2]; 5898 5899 /* Configure beacon timeout value based upon roaming setting */ 5900 if (ifp->drvr->settings->roamoff) 5901 bcn_timeout = BRCMF_DEFAULT_BCN_TIMEOUT_ROAM_OFF; 5902 else 5903 bcn_timeout = BRCMF_DEFAULT_BCN_TIMEOUT_ROAM_ON; 5904 err = brcmf_fil_iovar_int_set(ifp, "bcn_timeout", bcn_timeout); 5905 if (err) { 5906 brcmf_err("bcn_timeout error (%d)\n", err); 5907 goto roam_setup_done; 5908 } 5909 5910 /* Enable/Disable built-in roaming to allow supplicant to take care of 5911 * roaming. 5912 */ 5913 brcmf_dbg(INFO, "Internal Roaming = %s\n", 5914 ifp->drvr->settings->roamoff ? "Off" : "On"); 5915 err = brcmf_fil_iovar_int_set(ifp, "roam_off", 5916 ifp->drvr->settings->roamoff); 5917 if (err) { 5918 brcmf_err("roam_off error (%d)\n", err); 5919 goto roam_setup_done; 5920 } 5921 5922 roamtrigger[0] = cpu_to_le32(WL_ROAM_TRIGGER_LEVEL); 5923 roamtrigger[1] = cpu_to_le32(BRCM_BAND_ALL); 5924 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_ROAM_TRIGGER, 5925 (void *)roamtrigger, sizeof(roamtrigger)); 5926 if (err) { 5927 brcmf_err("WLC_SET_ROAM_TRIGGER error (%d)\n", err); 5928 goto roam_setup_done; 5929 } 5930 5931 roam_delta[0] = cpu_to_le32(WL_ROAM_DELTA); 5932 roam_delta[1] = cpu_to_le32(BRCM_BAND_ALL); 5933 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_ROAM_DELTA, 5934 (void *)roam_delta, sizeof(roam_delta)); 5935 if (err) { 5936 brcmf_err("WLC_SET_ROAM_DELTA error (%d)\n", err); 5937 goto roam_setup_done; 5938 } 5939 5940 roam_setup_done: 5941 return err; 5942 } 5943 5944 static s32 5945 brcmf_dongle_scantime(struct brcmf_if *ifp) 5946 { 5947 s32 err = 0; 5948 5949 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_CHANNEL_TIME, 5950 BRCMF_SCAN_CHANNEL_TIME); 5951 if (err) { 5952 brcmf_err("Scan assoc time error (%d)\n", err); 5953 goto dongle_scantime_out; 5954 } 5955 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_UNASSOC_TIME, 5956 BRCMF_SCAN_UNASSOC_TIME); 5957 if (err) { 5958 brcmf_err("Scan unassoc time error (%d)\n", err); 5959 goto dongle_scantime_out; 5960 } 5961 5962 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_PASSIVE_TIME, 5963 BRCMF_SCAN_PASSIVE_TIME); 5964 if (err) { 5965 brcmf_err("Scan passive time error (%d)\n", err); 5966 goto dongle_scantime_out; 5967 } 5968 5969 dongle_scantime_out: 5970 return err; 5971 } 5972 5973 static void brcmf_update_bw40_channel_flag(struct ieee80211_channel *channel, 5974 struct brcmu_chan *ch) 5975 { 5976 u32 ht40_flag; 5977 5978 ht40_flag = channel->flags & IEEE80211_CHAN_NO_HT40; 5979 if (ch->sb == BRCMU_CHAN_SB_U) { 5980 if (ht40_flag == IEEE80211_CHAN_NO_HT40) 5981 channel->flags &= ~IEEE80211_CHAN_NO_HT40; 5982 channel->flags |= IEEE80211_CHAN_NO_HT40PLUS; 5983 } else { 5984 /* It should be one of 5985 * IEEE80211_CHAN_NO_HT40 or 5986 * IEEE80211_CHAN_NO_HT40PLUS 5987 */ 5988 channel->flags &= ~IEEE80211_CHAN_NO_HT40; 5989 if (ht40_flag == IEEE80211_CHAN_NO_HT40) 5990 channel->flags |= IEEE80211_CHAN_NO_HT40MINUS; 5991 } 5992 } 5993 5994 static int brcmf_construct_chaninfo(struct brcmf_cfg80211_info *cfg, 5995 u32 bw_cap[]) 5996 { 5997 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg)); 5998 struct ieee80211_supported_band *band; 5999 struct ieee80211_channel *channel; 6000 struct wiphy *wiphy; 6001 struct brcmf_chanspec_list *list; 6002 struct brcmu_chan ch; 6003 int err; 6004 u8 *pbuf; 6005 u32 i, j; 6006 u32 total; 6007 u32 chaninfo; 6008 6009 pbuf = kzalloc(BRCMF_DCMD_MEDLEN, GFP_KERNEL); 6010 6011 if (pbuf == NULL) 6012 return -ENOMEM; 6013 6014 list = (struct brcmf_chanspec_list *)pbuf; 6015 6016 err = brcmf_fil_iovar_data_get(ifp, "chanspecs", pbuf, 6017 BRCMF_DCMD_MEDLEN); 6018 if (err) { 6019 brcmf_err("get chanspecs error (%d)\n", err); 6020 goto fail_pbuf; 6021 } 6022 6023 wiphy = cfg_to_wiphy(cfg); 6024 band = wiphy->bands[NL80211_BAND_2GHZ]; 6025 if (band) 6026 for (i = 0; i < band->n_channels; i++) 6027 band->channels[i].flags = IEEE80211_CHAN_DISABLED; 6028 band = wiphy->bands[NL80211_BAND_5GHZ]; 6029 if (band) 6030 for (i = 0; i < band->n_channels; i++) 6031 band->channels[i].flags = IEEE80211_CHAN_DISABLED; 6032 6033 total = le32_to_cpu(list->count); 6034 for (i = 0; i < total; i++) { 6035 ch.chspec = (u16)le32_to_cpu(list->element[i]); 6036 cfg->d11inf.decchspec(&ch); 6037 6038 if (ch.band == BRCMU_CHAN_BAND_2G) { 6039 band = wiphy->bands[NL80211_BAND_2GHZ]; 6040 } else if (ch.band == BRCMU_CHAN_BAND_5G) { 6041 band = wiphy->bands[NL80211_BAND_5GHZ]; 6042 } else { 6043 brcmf_err("Invalid channel Spec. 0x%x.\n", ch.chspec); 6044 continue; 6045 } 6046 if (!band) 6047 continue; 6048 if (!(bw_cap[band->band] & WLC_BW_40MHZ_BIT) && 6049 ch.bw == BRCMU_CHAN_BW_40) 6050 continue; 6051 if (!(bw_cap[band->band] & WLC_BW_80MHZ_BIT) && 6052 ch.bw == BRCMU_CHAN_BW_80) 6053 continue; 6054 6055 channel = NULL; 6056 for (j = 0; j < band->n_channels; j++) { 6057 if (band->channels[j].hw_value == ch.control_ch_num) { 6058 channel = &band->channels[j]; 6059 break; 6060 } 6061 } 6062 if (!channel) { 6063 /* It seems firmware supports some channel we never 6064 * considered. Something new in IEEE standard? 6065 */ 6066 brcmf_err("Ignoring unexpected firmware channel %d\n", 6067 ch.control_ch_num); 6068 continue; 6069 } 6070 6071 if (channel->orig_flags & IEEE80211_CHAN_DISABLED) 6072 continue; 6073 6074 /* assuming the chanspecs order is HT20, 6075 * HT40 upper, HT40 lower, and VHT80. 6076 */ 6077 if (ch.bw == BRCMU_CHAN_BW_80) { 6078 channel->flags &= ~IEEE80211_CHAN_NO_80MHZ; 6079 } else if (ch.bw == BRCMU_CHAN_BW_40) { 6080 brcmf_update_bw40_channel_flag(channel, &ch); 6081 } else { 6082 /* enable the channel and disable other bandwidths 6083 * for now as mentioned order assure they are enabled 6084 * for subsequent chanspecs. 6085 */ 6086 channel->flags = IEEE80211_CHAN_NO_HT40 | 6087 IEEE80211_CHAN_NO_80MHZ; 6088 ch.bw = BRCMU_CHAN_BW_20; 6089 cfg->d11inf.encchspec(&ch); 6090 chaninfo = ch.chspec; 6091 err = brcmf_fil_bsscfg_int_get(ifp, "per_chan_info", 6092 &chaninfo); 6093 if (!err) { 6094 if (chaninfo & WL_CHAN_RADAR) 6095 channel->flags |= 6096 (IEEE80211_CHAN_RADAR | 6097 IEEE80211_CHAN_NO_IR); 6098 if (chaninfo & WL_CHAN_PASSIVE) 6099 channel->flags |= 6100 IEEE80211_CHAN_NO_IR; 6101 } 6102 } 6103 } 6104 6105 fail_pbuf: 6106 kfree(pbuf); 6107 return err; 6108 } 6109 6110 static int brcmf_enable_bw40_2g(struct brcmf_cfg80211_info *cfg) 6111 { 6112 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg)); 6113 struct ieee80211_supported_band *band; 6114 struct brcmf_fil_bwcap_le band_bwcap; 6115 struct brcmf_chanspec_list *list; 6116 u8 *pbuf; 6117 u32 val; 6118 int err; 6119 struct brcmu_chan ch; 6120 u32 num_chan; 6121 int i, j; 6122 6123 /* verify support for bw_cap command */ 6124 val = WLC_BAND_5G; 6125 err = brcmf_fil_iovar_int_get(ifp, "bw_cap", &val); 6126 6127 if (!err) { 6128 /* only set 2G bandwidth using bw_cap command */ 6129 band_bwcap.band = cpu_to_le32(WLC_BAND_2G); 6130 band_bwcap.bw_cap = cpu_to_le32(WLC_BW_CAP_40MHZ); 6131 err = brcmf_fil_iovar_data_set(ifp, "bw_cap", &band_bwcap, 6132 sizeof(band_bwcap)); 6133 } else { 6134 brcmf_dbg(INFO, "fallback to mimo_bw_cap\n"); 6135 val = WLC_N_BW_40ALL; 6136 err = brcmf_fil_iovar_int_set(ifp, "mimo_bw_cap", val); 6137 } 6138 6139 if (!err) { 6140 /* update channel info in 2G band */ 6141 pbuf = kzalloc(BRCMF_DCMD_MEDLEN, GFP_KERNEL); 6142 6143 if (pbuf == NULL) 6144 return -ENOMEM; 6145 6146 ch.band = BRCMU_CHAN_BAND_2G; 6147 ch.bw = BRCMU_CHAN_BW_40; 6148 ch.sb = BRCMU_CHAN_SB_NONE; 6149 ch.chnum = 0; 6150 cfg->d11inf.encchspec(&ch); 6151 6152 /* pass encoded chanspec in query */ 6153 *(__le16 *)pbuf = cpu_to_le16(ch.chspec); 6154 6155 err = brcmf_fil_iovar_data_get(ifp, "chanspecs", pbuf, 6156 BRCMF_DCMD_MEDLEN); 6157 if (err) { 6158 brcmf_err("get chanspecs error (%d)\n", err); 6159 kfree(pbuf); 6160 return err; 6161 } 6162 6163 band = cfg_to_wiphy(cfg)->bands[NL80211_BAND_2GHZ]; 6164 list = (struct brcmf_chanspec_list *)pbuf; 6165 num_chan = le32_to_cpu(list->count); 6166 for (i = 0; i < num_chan; i++) { 6167 ch.chspec = (u16)le32_to_cpu(list->element[i]); 6168 cfg->d11inf.decchspec(&ch); 6169 if (WARN_ON(ch.band != BRCMU_CHAN_BAND_2G)) 6170 continue; 6171 if (WARN_ON(ch.bw != BRCMU_CHAN_BW_40)) 6172 continue; 6173 for (j = 0; j < band->n_channels; j++) { 6174 if (band->channels[j].hw_value == ch.control_ch_num) 6175 break; 6176 } 6177 if (WARN_ON(j == band->n_channels)) 6178 continue; 6179 6180 brcmf_update_bw40_channel_flag(&band->channels[j], &ch); 6181 } 6182 kfree(pbuf); 6183 } 6184 return err; 6185 } 6186 6187 static void brcmf_get_bwcap(struct brcmf_if *ifp, u32 bw_cap[]) 6188 { 6189 u32 band, mimo_bwcap; 6190 int err; 6191 6192 band = WLC_BAND_2G; 6193 err = brcmf_fil_iovar_int_get(ifp, "bw_cap", &band); 6194 if (!err) { 6195 bw_cap[NL80211_BAND_2GHZ] = band; 6196 band = WLC_BAND_5G; 6197 err = brcmf_fil_iovar_int_get(ifp, "bw_cap", &band); 6198 if (!err) { 6199 bw_cap[NL80211_BAND_5GHZ] = band; 6200 return; 6201 } 6202 WARN_ON(1); 6203 return; 6204 } 6205 brcmf_dbg(INFO, "fallback to mimo_bw_cap info\n"); 6206 mimo_bwcap = 0; 6207 err = brcmf_fil_iovar_int_get(ifp, "mimo_bw_cap", &mimo_bwcap); 6208 if (err) 6209 /* assume 20MHz if firmware does not give a clue */ 6210 mimo_bwcap = WLC_N_BW_20ALL; 6211 6212 switch (mimo_bwcap) { 6213 case WLC_N_BW_40ALL: 6214 bw_cap[NL80211_BAND_2GHZ] |= WLC_BW_40MHZ_BIT; 6215 /* fall-thru */ 6216 case WLC_N_BW_20IN2G_40IN5G: 6217 bw_cap[NL80211_BAND_5GHZ] |= WLC_BW_40MHZ_BIT; 6218 /* fall-thru */ 6219 case WLC_N_BW_20ALL: 6220 bw_cap[NL80211_BAND_2GHZ] |= WLC_BW_20MHZ_BIT; 6221 bw_cap[NL80211_BAND_5GHZ] |= WLC_BW_20MHZ_BIT; 6222 break; 6223 default: 6224 brcmf_err("invalid mimo_bw_cap value\n"); 6225 } 6226 } 6227 6228 static void brcmf_update_ht_cap(struct ieee80211_supported_band *band, 6229 u32 bw_cap[2], u32 nchain) 6230 { 6231 band->ht_cap.ht_supported = true; 6232 if (bw_cap[band->band] & WLC_BW_40MHZ_BIT) { 6233 band->ht_cap.cap |= IEEE80211_HT_CAP_SGI_40; 6234 band->ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; 6235 } 6236 band->ht_cap.cap |= IEEE80211_HT_CAP_SGI_20; 6237 band->ht_cap.cap |= IEEE80211_HT_CAP_DSSSCCK40; 6238 band->ht_cap.ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K; 6239 band->ht_cap.ampdu_density = IEEE80211_HT_MPDU_DENSITY_16; 6240 memset(band->ht_cap.mcs.rx_mask, 0xff, nchain); 6241 band->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED; 6242 } 6243 6244 static __le16 brcmf_get_mcs_map(u32 nchain, enum ieee80211_vht_mcs_support supp) 6245 { 6246 u16 mcs_map; 6247 int i; 6248 6249 for (i = 0, mcs_map = 0xFFFF; i < nchain; i++) 6250 mcs_map = (mcs_map << 2) | supp; 6251 6252 return cpu_to_le16(mcs_map); 6253 } 6254 6255 static void brcmf_update_vht_cap(struct ieee80211_supported_band *band, 6256 u32 bw_cap[2], u32 nchain, u32 txstreams, 6257 u32 txbf_bfe_cap, u32 txbf_bfr_cap) 6258 { 6259 __le16 mcs_map; 6260 6261 /* not allowed in 2.4G band */ 6262 if (band->band == NL80211_BAND_2GHZ) 6263 return; 6264 6265 band->vht_cap.vht_supported = true; 6266 /* 80MHz is mandatory */ 6267 band->vht_cap.cap |= IEEE80211_VHT_CAP_SHORT_GI_80; 6268 if (bw_cap[band->band] & WLC_BW_160MHZ_BIT) { 6269 band->vht_cap.cap |= IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ; 6270 band->vht_cap.cap |= IEEE80211_VHT_CAP_SHORT_GI_160; 6271 } 6272 /* all support 256-QAM */ 6273 mcs_map = brcmf_get_mcs_map(nchain, IEEE80211_VHT_MCS_SUPPORT_0_9); 6274 band->vht_cap.vht_mcs.rx_mcs_map = mcs_map; 6275 band->vht_cap.vht_mcs.tx_mcs_map = mcs_map; 6276 6277 /* Beamforming support information */ 6278 if (txbf_bfe_cap & BRCMF_TXBF_SU_BFE_CAP) 6279 band->vht_cap.cap |= IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE; 6280 if (txbf_bfe_cap & BRCMF_TXBF_MU_BFE_CAP) 6281 band->vht_cap.cap |= IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE; 6282 if (txbf_bfr_cap & BRCMF_TXBF_SU_BFR_CAP) 6283 band->vht_cap.cap |= IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE; 6284 if (txbf_bfr_cap & BRCMF_TXBF_MU_BFR_CAP) 6285 band->vht_cap.cap |= IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE; 6286 6287 if ((txbf_bfe_cap || txbf_bfr_cap) && (txstreams > 1)) { 6288 band->vht_cap.cap |= 6289 (2 << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT); 6290 band->vht_cap.cap |= ((txstreams - 1) << 6291 IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT); 6292 band->vht_cap.cap |= 6293 IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB; 6294 } 6295 } 6296 6297 static int brcmf_setup_wiphybands(struct wiphy *wiphy) 6298 { 6299 struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy); 6300 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg)); 6301 u32 nmode = 0; 6302 u32 vhtmode = 0; 6303 u32 bw_cap[2] = { WLC_BW_20MHZ_BIT, WLC_BW_20MHZ_BIT }; 6304 u32 rxchain; 6305 u32 nchain; 6306 int err; 6307 s32 i; 6308 struct ieee80211_supported_band *band; 6309 u32 txstreams = 0; 6310 u32 txbf_bfe_cap = 0; 6311 u32 txbf_bfr_cap = 0; 6312 6313 (void)brcmf_fil_iovar_int_get(ifp, "vhtmode", &vhtmode); 6314 err = brcmf_fil_iovar_int_get(ifp, "nmode", &nmode); 6315 if (err) { 6316 brcmf_err("nmode error (%d)\n", err); 6317 } else { 6318 brcmf_get_bwcap(ifp, bw_cap); 6319 } 6320 brcmf_dbg(INFO, "nmode=%d, vhtmode=%d, bw_cap=(%d, %d)\n", 6321 nmode, vhtmode, bw_cap[NL80211_BAND_2GHZ], 6322 bw_cap[NL80211_BAND_5GHZ]); 6323 6324 err = brcmf_fil_iovar_int_get(ifp, "rxchain", &rxchain); 6325 if (err) { 6326 brcmf_err("rxchain error (%d)\n", err); 6327 nchain = 1; 6328 } else { 6329 for (nchain = 0; rxchain; nchain++) 6330 rxchain = rxchain & (rxchain - 1); 6331 } 6332 brcmf_dbg(INFO, "nchain=%d\n", nchain); 6333 6334 err = brcmf_construct_chaninfo(cfg, bw_cap); 6335 if (err) { 6336 brcmf_err("brcmf_construct_chaninfo failed (%d)\n", err); 6337 return err; 6338 } 6339 6340 if (vhtmode) { 6341 (void)brcmf_fil_iovar_int_get(ifp, "txstreams", &txstreams); 6342 (void)brcmf_fil_iovar_int_get(ifp, "txbf_bfe_cap", 6343 &txbf_bfe_cap); 6344 (void)brcmf_fil_iovar_int_get(ifp, "txbf_bfr_cap", 6345 &txbf_bfr_cap); 6346 } 6347 6348 wiphy = cfg_to_wiphy(cfg); 6349 for (i = 0; i < ARRAY_SIZE(wiphy->bands); i++) { 6350 band = wiphy->bands[i]; 6351 if (band == NULL) 6352 continue; 6353 6354 if (nmode) 6355 brcmf_update_ht_cap(band, bw_cap, nchain); 6356 if (vhtmode) 6357 brcmf_update_vht_cap(band, bw_cap, nchain, txstreams, 6358 txbf_bfe_cap, txbf_bfr_cap); 6359 } 6360 6361 return 0; 6362 } 6363 6364 static const struct ieee80211_txrx_stypes 6365 brcmf_txrx_stypes[NUM_NL80211_IFTYPES] = { 6366 [NL80211_IFTYPE_STATION] = { 6367 .tx = 0xffff, 6368 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 6369 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) 6370 }, 6371 [NL80211_IFTYPE_P2P_CLIENT] = { 6372 .tx = 0xffff, 6373 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 6374 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) 6375 }, 6376 [NL80211_IFTYPE_P2P_GO] = { 6377 .tx = 0xffff, 6378 .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) | 6379 BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | 6380 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | 6381 BIT(IEEE80211_STYPE_DISASSOC >> 4) | 6382 BIT(IEEE80211_STYPE_AUTH >> 4) | 6383 BIT(IEEE80211_STYPE_DEAUTH >> 4) | 6384 BIT(IEEE80211_STYPE_ACTION >> 4) 6385 }, 6386 [NL80211_IFTYPE_P2P_DEVICE] = { 6387 .tx = 0xffff, 6388 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 6389 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) 6390 } 6391 }; 6392 6393 /** 6394 * brcmf_setup_ifmodes() - determine interface modes and combinations. 6395 * 6396 * @wiphy: wiphy object. 6397 * @ifp: interface object needed for feat module api. 6398 * 6399 * The interface modes and combinations are determined dynamically here 6400 * based on firmware functionality. 6401 * 6402 * no p2p and no mbss: 6403 * 6404 * #STA <= 1, #AP <= 1, channels = 1, 2 total 6405 * 6406 * no p2p and mbss: 6407 * 6408 * #STA <= 1, #AP <= 1, channels = 1, 2 total 6409 * #AP <= 4, matching BI, channels = 1, 4 total 6410 * 6411 * p2p, no mchan, and mbss: 6412 * 6413 * #STA <= 1, #P2P-DEV <= 1, #{P2P-CL, P2P-GO} <= 1, channels = 1, 3 total 6414 * #STA <= 1, #P2P-DEV <= 1, #AP <= 1, #P2P-CL <= 1, channels = 1, 4 total 6415 * #AP <= 4, matching BI, channels = 1, 4 total 6416 * 6417 * p2p, mchan, and mbss: 6418 * 6419 * #STA <= 1, #P2P-DEV <= 1, #{P2P-CL, P2P-GO} <= 1, channels = 2, 3 total 6420 * #STA <= 1, #P2P-DEV <= 1, #AP <= 1, #P2P-CL <= 1, channels = 1, 4 total 6421 * #AP <= 4, matching BI, channels = 1, 4 total 6422 */ 6423 static int brcmf_setup_ifmodes(struct wiphy *wiphy, struct brcmf_if *ifp) 6424 { 6425 struct ieee80211_iface_combination *combo = NULL; 6426 struct ieee80211_iface_limit *c0_limits = NULL; 6427 struct ieee80211_iface_limit *p2p_limits = NULL; 6428 struct ieee80211_iface_limit *mbss_limits = NULL; 6429 bool mbss, p2p; 6430 int i, c, n_combos; 6431 6432 mbss = brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MBSS); 6433 p2p = brcmf_feat_is_enabled(ifp, BRCMF_FEAT_P2P); 6434 6435 n_combos = 1 + !!p2p + !!mbss; 6436 combo = kcalloc(n_combos, sizeof(*combo), GFP_KERNEL); 6437 if (!combo) 6438 goto err; 6439 6440 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 6441 BIT(NL80211_IFTYPE_ADHOC) | 6442 BIT(NL80211_IFTYPE_AP); 6443 6444 c = 0; 6445 i = 0; 6446 c0_limits = kcalloc(p2p ? 3 : 2, sizeof(*c0_limits), GFP_KERNEL); 6447 if (!c0_limits) 6448 goto err; 6449 c0_limits[i].max = 1; 6450 c0_limits[i++].types = BIT(NL80211_IFTYPE_STATION); 6451 if (p2p) { 6452 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MCHAN)) 6453 combo[c].num_different_channels = 2; 6454 wiphy->interface_modes |= BIT(NL80211_IFTYPE_P2P_CLIENT) | 6455 BIT(NL80211_IFTYPE_P2P_GO) | 6456 BIT(NL80211_IFTYPE_P2P_DEVICE); 6457 c0_limits[i].max = 1; 6458 c0_limits[i++].types = BIT(NL80211_IFTYPE_P2P_DEVICE); 6459 c0_limits[i].max = 1; 6460 c0_limits[i++].types = BIT(NL80211_IFTYPE_P2P_CLIENT) | 6461 BIT(NL80211_IFTYPE_P2P_GO); 6462 } else { 6463 c0_limits[i].max = 1; 6464 c0_limits[i++].types = BIT(NL80211_IFTYPE_AP); 6465 } 6466 combo[c].num_different_channels = 1; 6467 combo[c].max_interfaces = i; 6468 combo[c].n_limits = i; 6469 combo[c].limits = c0_limits; 6470 6471 if (p2p) { 6472 c++; 6473 i = 0; 6474 p2p_limits = kcalloc(4, sizeof(*p2p_limits), GFP_KERNEL); 6475 if (!p2p_limits) 6476 goto err; 6477 p2p_limits[i].max = 1; 6478 p2p_limits[i++].types = BIT(NL80211_IFTYPE_STATION); 6479 p2p_limits[i].max = 1; 6480 p2p_limits[i++].types = BIT(NL80211_IFTYPE_AP); 6481 p2p_limits[i].max = 1; 6482 p2p_limits[i++].types = BIT(NL80211_IFTYPE_P2P_CLIENT); 6483 p2p_limits[i].max = 1; 6484 p2p_limits[i++].types = BIT(NL80211_IFTYPE_P2P_DEVICE); 6485 combo[c].num_different_channels = 1; 6486 combo[c].max_interfaces = i; 6487 combo[c].n_limits = i; 6488 combo[c].limits = p2p_limits; 6489 } 6490 6491 if (mbss) { 6492 c++; 6493 i = 0; 6494 mbss_limits = kcalloc(1, sizeof(*mbss_limits), GFP_KERNEL); 6495 if (!mbss_limits) 6496 goto err; 6497 mbss_limits[i].max = 4; 6498 mbss_limits[i++].types = BIT(NL80211_IFTYPE_AP); 6499 combo[c].beacon_int_infra_match = true; 6500 combo[c].num_different_channels = 1; 6501 combo[c].max_interfaces = 4; 6502 combo[c].n_limits = i; 6503 combo[c].limits = mbss_limits; 6504 } 6505 6506 wiphy->n_iface_combinations = n_combos; 6507 wiphy->iface_combinations = combo; 6508 return 0; 6509 6510 err: 6511 kfree(c0_limits); 6512 kfree(p2p_limits); 6513 kfree(mbss_limits); 6514 kfree(combo); 6515 return -ENOMEM; 6516 } 6517 6518 #ifdef CONFIG_PM 6519 static const struct wiphy_wowlan_support brcmf_wowlan_support = { 6520 .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT, 6521 .n_patterns = BRCMF_WOWL_MAXPATTERNS, 6522 .pattern_max_len = BRCMF_WOWL_MAXPATTERNSIZE, 6523 .pattern_min_len = 1, 6524 .max_pkt_offset = 1500, 6525 }; 6526 #endif 6527 6528 static void brcmf_wiphy_wowl_params(struct wiphy *wiphy, struct brcmf_if *ifp) 6529 { 6530 #ifdef CONFIG_PM 6531 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); 6532 struct wiphy_wowlan_support *wowl; 6533 6534 wowl = kmemdup(&brcmf_wowlan_support, sizeof(brcmf_wowlan_support), 6535 GFP_KERNEL); 6536 if (!wowl) { 6537 brcmf_err("only support basic wowlan features\n"); 6538 wiphy->wowlan = &brcmf_wowlan_support; 6539 return; 6540 } 6541 6542 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_PNO)) { 6543 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_WOWL_ND)) { 6544 wowl->flags |= WIPHY_WOWLAN_NET_DETECT; 6545 wowl->max_nd_match_sets = BRCMF_PNO_MAX_PFN_COUNT; 6546 init_waitqueue_head(&cfg->wowl.nd_data_wait); 6547 } 6548 } 6549 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_WOWL_GTK)) { 6550 wowl->flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY; 6551 wowl->flags |= WIPHY_WOWLAN_GTK_REKEY_FAILURE; 6552 } 6553 6554 wiphy->wowlan = wowl; 6555 #endif 6556 } 6557 6558 static int brcmf_setup_wiphy(struct wiphy *wiphy, struct brcmf_if *ifp) 6559 { 6560 struct brcmf_pub *drvr = ifp->drvr; 6561 const struct ieee80211_iface_combination *combo; 6562 struct ieee80211_supported_band *band; 6563 u16 max_interfaces = 0; 6564 bool gscan; 6565 __le32 bandlist[3]; 6566 u32 n_bands; 6567 int err, i; 6568 6569 wiphy->max_scan_ssids = WL_NUM_SCAN_MAX; 6570 wiphy->max_scan_ie_len = BRCMF_SCAN_IE_LEN_MAX; 6571 wiphy->max_num_pmkids = BRCMF_MAXPMKID; 6572 6573 err = brcmf_setup_ifmodes(wiphy, ifp); 6574 if (err) 6575 return err; 6576 6577 for (i = 0, combo = wiphy->iface_combinations; 6578 i < wiphy->n_iface_combinations; i++, combo++) { 6579 max_interfaces = max(max_interfaces, combo->max_interfaces); 6580 } 6581 6582 for (i = 0; i < max_interfaces && i < ARRAY_SIZE(drvr->addresses); 6583 i++) { 6584 u8 *addr = drvr->addresses[i].addr; 6585 6586 memcpy(addr, drvr->mac, ETH_ALEN); 6587 if (i) { 6588 addr[0] |= BIT(1); 6589 addr[ETH_ALEN - 1] ^= i; 6590 } 6591 } 6592 wiphy->addresses = drvr->addresses; 6593 wiphy->n_addresses = i; 6594 6595 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; 6596 wiphy->cipher_suites = brcmf_cipher_suites; 6597 wiphy->n_cipher_suites = ARRAY_SIZE(brcmf_cipher_suites); 6598 if (!brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MFP)) 6599 wiphy->n_cipher_suites--; 6600 wiphy->bss_select_support = BIT(NL80211_BSS_SELECT_ATTR_RSSI) | 6601 BIT(NL80211_BSS_SELECT_ATTR_BAND_PREF) | 6602 BIT(NL80211_BSS_SELECT_ATTR_RSSI_ADJUST); 6603 6604 wiphy->flags |= WIPHY_FLAG_NETNS_OK | 6605 WIPHY_FLAG_PS_ON_BY_DEFAULT | 6606 WIPHY_FLAG_OFFCHAN_TX | 6607 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL; 6608 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_TDLS)) 6609 wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS; 6610 if (!ifp->drvr->settings->roamoff) 6611 wiphy->flags |= WIPHY_FLAG_SUPPORTS_FW_ROAM; 6612 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_FWSUP)) { 6613 wiphy_ext_feature_set(wiphy, 6614 NL80211_EXT_FEATURE_4WAY_HANDSHAKE_STA_PSK); 6615 wiphy_ext_feature_set(wiphy, 6616 NL80211_EXT_FEATURE_4WAY_HANDSHAKE_STA_1X); 6617 } 6618 wiphy->mgmt_stypes = brcmf_txrx_stypes; 6619 wiphy->max_remain_on_channel_duration = 5000; 6620 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_PNO)) { 6621 gscan = brcmf_feat_is_enabled(ifp, BRCMF_FEAT_GSCAN); 6622 brcmf_pno_wiphy_params(wiphy, gscan); 6623 } 6624 /* vendor commands/events support */ 6625 wiphy->vendor_commands = brcmf_vendor_cmds; 6626 wiphy->n_vendor_commands = BRCMF_VNDR_CMDS_LAST - 1; 6627 6628 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_WOWL)) 6629 brcmf_wiphy_wowl_params(wiphy, ifp); 6630 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BANDLIST, &bandlist, 6631 sizeof(bandlist)); 6632 if (err) { 6633 brcmf_err("could not obtain band info: err=%d\n", err); 6634 return err; 6635 } 6636 /* first entry in bandlist is number of bands */ 6637 n_bands = le32_to_cpu(bandlist[0]); 6638 for (i = 1; i <= n_bands && i < ARRAY_SIZE(bandlist); i++) { 6639 if (bandlist[i] == cpu_to_le32(WLC_BAND_2G)) { 6640 band = kmemdup(&__wl_band_2ghz, sizeof(__wl_band_2ghz), 6641 GFP_KERNEL); 6642 if (!band) 6643 return -ENOMEM; 6644 6645 band->channels = kmemdup(&__wl_2ghz_channels, 6646 sizeof(__wl_2ghz_channels), 6647 GFP_KERNEL); 6648 if (!band->channels) { 6649 kfree(band); 6650 return -ENOMEM; 6651 } 6652 6653 band->n_channels = ARRAY_SIZE(__wl_2ghz_channels); 6654 wiphy->bands[NL80211_BAND_2GHZ] = band; 6655 } 6656 if (bandlist[i] == cpu_to_le32(WLC_BAND_5G)) { 6657 band = kmemdup(&__wl_band_5ghz, sizeof(__wl_band_5ghz), 6658 GFP_KERNEL); 6659 if (!band) 6660 return -ENOMEM; 6661 6662 band->channels = kmemdup(&__wl_5ghz_channels, 6663 sizeof(__wl_5ghz_channels), 6664 GFP_KERNEL); 6665 if (!band->channels) { 6666 kfree(band); 6667 return -ENOMEM; 6668 } 6669 6670 band->n_channels = ARRAY_SIZE(__wl_5ghz_channels); 6671 wiphy->bands[NL80211_BAND_5GHZ] = band; 6672 } 6673 } 6674 6675 wiphy_read_of_freq_limits(wiphy); 6676 6677 return 0; 6678 } 6679 6680 static s32 brcmf_config_dongle(struct brcmf_cfg80211_info *cfg) 6681 { 6682 struct net_device *ndev; 6683 struct wireless_dev *wdev; 6684 struct brcmf_if *ifp; 6685 s32 power_mode; 6686 s32 err = 0; 6687 6688 if (cfg->dongle_up) 6689 return err; 6690 6691 ndev = cfg_to_ndev(cfg); 6692 wdev = ndev->ieee80211_ptr; 6693 ifp = netdev_priv(ndev); 6694 6695 /* make sure RF is ready for work */ 6696 brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 0); 6697 6698 brcmf_dongle_scantime(ifp); 6699 6700 power_mode = cfg->pwr_save ? PM_FAST : PM_OFF; 6701 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM, power_mode); 6702 if (err) 6703 goto default_conf_out; 6704 brcmf_dbg(INFO, "power save set to %s\n", 6705 (power_mode ? "enabled" : "disabled")); 6706 6707 err = brcmf_dongle_roam(ifp); 6708 if (err) 6709 goto default_conf_out; 6710 err = brcmf_cfg80211_change_iface(wdev->wiphy, ndev, wdev->iftype, 6711 NULL); 6712 if (err) 6713 goto default_conf_out; 6714 6715 brcmf_configure_arp_nd_offload(ifp, true); 6716 6717 cfg->dongle_up = true; 6718 default_conf_out: 6719 6720 return err; 6721 6722 } 6723 6724 static s32 __brcmf_cfg80211_up(struct brcmf_if *ifp) 6725 { 6726 set_bit(BRCMF_VIF_STATUS_READY, &ifp->vif->sme_state); 6727 6728 return brcmf_config_dongle(ifp->drvr->config); 6729 } 6730 6731 static s32 __brcmf_cfg80211_down(struct brcmf_if *ifp) 6732 { 6733 struct brcmf_cfg80211_info *cfg = ifp->drvr->config; 6734 6735 /* 6736 * While going down, if associated with AP disassociate 6737 * from AP to save power 6738 */ 6739 if (check_vif_up(ifp->vif)) { 6740 brcmf_link_down(ifp->vif, WLAN_REASON_UNSPECIFIED); 6741 6742 /* Make sure WPA_Supplicant receives all the event 6743 generated due to DISASSOC call to the fw to keep 6744 the state fw and WPA_Supplicant state consistent 6745 */ 6746 brcmf_delay(500); 6747 } 6748 6749 brcmf_abort_scanning(cfg); 6750 clear_bit(BRCMF_VIF_STATUS_READY, &ifp->vif->sme_state); 6751 6752 return 0; 6753 } 6754 6755 s32 brcmf_cfg80211_up(struct net_device *ndev) 6756 { 6757 struct brcmf_if *ifp = netdev_priv(ndev); 6758 struct brcmf_cfg80211_info *cfg = ifp->drvr->config; 6759 s32 err = 0; 6760 6761 mutex_lock(&cfg->usr_sync); 6762 err = __brcmf_cfg80211_up(ifp); 6763 mutex_unlock(&cfg->usr_sync); 6764 6765 return err; 6766 } 6767 6768 s32 brcmf_cfg80211_down(struct net_device *ndev) 6769 { 6770 struct brcmf_if *ifp = netdev_priv(ndev); 6771 struct brcmf_cfg80211_info *cfg = ifp->drvr->config; 6772 s32 err = 0; 6773 6774 mutex_lock(&cfg->usr_sync); 6775 err = __brcmf_cfg80211_down(ifp); 6776 mutex_unlock(&cfg->usr_sync); 6777 6778 return err; 6779 } 6780 6781 enum nl80211_iftype brcmf_cfg80211_get_iftype(struct brcmf_if *ifp) 6782 { 6783 struct wireless_dev *wdev = &ifp->vif->wdev; 6784 6785 return wdev->iftype; 6786 } 6787 6788 bool brcmf_get_vif_state_any(struct brcmf_cfg80211_info *cfg, 6789 unsigned long state) 6790 { 6791 struct brcmf_cfg80211_vif *vif; 6792 6793 list_for_each_entry(vif, &cfg->vif_list, list) { 6794 if (test_bit(state, &vif->sme_state)) 6795 return true; 6796 } 6797 return false; 6798 } 6799 6800 static inline bool vif_event_equals(struct brcmf_cfg80211_vif_event *event, 6801 u8 action) 6802 { 6803 u8 evt_action; 6804 6805 spin_lock(&event->vif_event_lock); 6806 evt_action = event->action; 6807 spin_unlock(&event->vif_event_lock); 6808 return evt_action == action; 6809 } 6810 6811 void brcmf_cfg80211_arm_vif_event(struct brcmf_cfg80211_info *cfg, 6812 struct brcmf_cfg80211_vif *vif) 6813 { 6814 struct brcmf_cfg80211_vif_event *event = &cfg->vif_event; 6815 6816 spin_lock(&event->vif_event_lock); 6817 event->vif = vif; 6818 event->action = 0; 6819 spin_unlock(&event->vif_event_lock); 6820 } 6821 6822 bool brcmf_cfg80211_vif_event_armed(struct brcmf_cfg80211_info *cfg) 6823 { 6824 struct brcmf_cfg80211_vif_event *event = &cfg->vif_event; 6825 bool armed; 6826 6827 spin_lock(&event->vif_event_lock); 6828 armed = event->vif != NULL; 6829 spin_unlock(&event->vif_event_lock); 6830 6831 return armed; 6832 } 6833 6834 int brcmf_cfg80211_wait_vif_event(struct brcmf_cfg80211_info *cfg, 6835 u8 action, ulong timeout) 6836 { 6837 struct brcmf_cfg80211_vif_event *event = &cfg->vif_event; 6838 6839 return wait_event_timeout(event->vif_wq, 6840 vif_event_equals(event, action), timeout); 6841 } 6842 6843 static s32 brcmf_translate_country_code(struct brcmf_pub *drvr, char alpha2[2], 6844 struct brcmf_fil_country_le *ccreq) 6845 { 6846 struct brcmfmac_pd_cc *country_codes; 6847 struct brcmfmac_pd_cc_entry *cc; 6848 s32 found_index; 6849 int i; 6850 6851 country_codes = drvr->settings->country_codes; 6852 if (!country_codes) { 6853 brcmf_dbg(TRACE, "No country codes configured for device\n"); 6854 return -EINVAL; 6855 } 6856 6857 if ((alpha2[0] == ccreq->country_abbrev[0]) && 6858 (alpha2[1] == ccreq->country_abbrev[1])) { 6859 brcmf_dbg(TRACE, "Country code already set\n"); 6860 return -EAGAIN; 6861 } 6862 6863 found_index = -1; 6864 for (i = 0; i < country_codes->table_size; i++) { 6865 cc = &country_codes->table[i]; 6866 if ((cc->iso3166[0] == '\0') && (found_index == -1)) 6867 found_index = i; 6868 if ((cc->iso3166[0] == alpha2[0]) && 6869 (cc->iso3166[1] == alpha2[1])) { 6870 found_index = i; 6871 break; 6872 } 6873 } 6874 if (found_index == -1) { 6875 brcmf_dbg(TRACE, "No country code match found\n"); 6876 return -EINVAL; 6877 } 6878 memset(ccreq, 0, sizeof(*ccreq)); 6879 ccreq->rev = cpu_to_le32(country_codes->table[found_index].rev); 6880 memcpy(ccreq->ccode, country_codes->table[found_index].cc, 6881 BRCMF_COUNTRY_BUF_SZ); 6882 ccreq->country_abbrev[0] = alpha2[0]; 6883 ccreq->country_abbrev[1] = alpha2[1]; 6884 ccreq->country_abbrev[2] = 0; 6885 6886 return 0; 6887 } 6888 6889 static void brcmf_cfg80211_reg_notifier(struct wiphy *wiphy, 6890 struct regulatory_request *req) 6891 { 6892 struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy); 6893 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg)); 6894 struct brcmf_fil_country_le ccreq; 6895 s32 err; 6896 int i; 6897 6898 /* The country code gets set to "00" by default at boot, ignore */ 6899 if (req->alpha2[0] == '0' && req->alpha2[1] == '0') 6900 return; 6901 6902 /* ignore non-ISO3166 country codes */ 6903 for (i = 0; i < sizeof(req->alpha2); i++) 6904 if (req->alpha2[i] < 'A' || req->alpha2[i] > 'Z') { 6905 brcmf_err("not an ISO3166 code (0x%02x 0x%02x)\n", 6906 req->alpha2[0], req->alpha2[1]); 6907 return; 6908 } 6909 6910 brcmf_dbg(TRACE, "Enter: initiator=%d, alpha=%c%c\n", req->initiator, 6911 req->alpha2[0], req->alpha2[1]); 6912 6913 err = brcmf_fil_iovar_data_get(ifp, "country", &ccreq, sizeof(ccreq)); 6914 if (err) { 6915 brcmf_err("Country code iovar returned err = %d\n", err); 6916 return; 6917 } 6918 6919 err = brcmf_translate_country_code(ifp->drvr, req->alpha2, &ccreq); 6920 if (err) 6921 return; 6922 6923 err = brcmf_fil_iovar_data_set(ifp, "country", &ccreq, sizeof(ccreq)); 6924 if (err) { 6925 brcmf_err("Firmware rejected country setting\n"); 6926 return; 6927 } 6928 brcmf_setup_wiphybands(wiphy); 6929 } 6930 6931 static void brcmf_free_wiphy(struct wiphy *wiphy) 6932 { 6933 int i; 6934 6935 if (!wiphy) 6936 return; 6937 6938 if (wiphy->iface_combinations) { 6939 for (i = 0; i < wiphy->n_iface_combinations; i++) 6940 kfree(wiphy->iface_combinations[i].limits); 6941 } 6942 kfree(wiphy->iface_combinations); 6943 if (wiphy->bands[NL80211_BAND_2GHZ]) { 6944 kfree(wiphy->bands[NL80211_BAND_2GHZ]->channels); 6945 kfree(wiphy->bands[NL80211_BAND_2GHZ]); 6946 } 6947 if (wiphy->bands[NL80211_BAND_5GHZ]) { 6948 kfree(wiphy->bands[NL80211_BAND_5GHZ]->channels); 6949 kfree(wiphy->bands[NL80211_BAND_5GHZ]); 6950 } 6951 #if IS_ENABLED(CONFIG_PM) 6952 if (wiphy->wowlan != &brcmf_wowlan_support) 6953 kfree(wiphy->wowlan); 6954 #endif 6955 wiphy_free(wiphy); 6956 } 6957 6958 struct brcmf_cfg80211_info *brcmf_cfg80211_attach(struct brcmf_pub *drvr, 6959 struct device *busdev, 6960 bool p2pdev_forced) 6961 { 6962 struct net_device *ndev = brcmf_get_ifp(drvr, 0)->ndev; 6963 struct brcmf_cfg80211_info *cfg; 6964 struct wiphy *wiphy; 6965 struct cfg80211_ops *ops; 6966 struct brcmf_cfg80211_vif *vif; 6967 struct brcmf_if *ifp; 6968 s32 err = 0; 6969 s32 io_type; 6970 u16 *cap = NULL; 6971 6972 if (!ndev) { 6973 brcmf_err("ndev is invalid\n"); 6974 return NULL; 6975 } 6976 6977 ops = kmemdup(&brcmf_cfg80211_ops, sizeof(*ops), GFP_KERNEL); 6978 if (!ops) 6979 return NULL; 6980 6981 ifp = netdev_priv(ndev); 6982 #ifdef CONFIG_PM 6983 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_WOWL_GTK)) 6984 ops->set_rekey_data = brcmf_cfg80211_set_rekey_data; 6985 #endif 6986 wiphy = wiphy_new(ops, sizeof(struct brcmf_cfg80211_info)); 6987 if (!wiphy) { 6988 brcmf_err("Could not allocate wiphy device\n"); 6989 goto ops_out; 6990 } 6991 memcpy(wiphy->perm_addr, drvr->mac, ETH_ALEN); 6992 set_wiphy_dev(wiphy, busdev); 6993 6994 cfg = wiphy_priv(wiphy); 6995 cfg->wiphy = wiphy; 6996 cfg->ops = ops; 6997 cfg->pub = drvr; 6998 init_vif_event(&cfg->vif_event); 6999 INIT_LIST_HEAD(&cfg->vif_list); 7000 7001 vif = brcmf_alloc_vif(cfg, NL80211_IFTYPE_STATION); 7002 if (IS_ERR(vif)) 7003 goto wiphy_out; 7004 7005 vif->ifp = ifp; 7006 vif->wdev.netdev = ndev; 7007 ndev->ieee80211_ptr = &vif->wdev; 7008 SET_NETDEV_DEV(ndev, wiphy_dev(cfg->wiphy)); 7009 7010 err = wl_init_priv(cfg); 7011 if (err) { 7012 brcmf_err("Failed to init iwm_priv (%d)\n", err); 7013 brcmf_free_vif(vif); 7014 goto wiphy_out; 7015 } 7016 ifp->vif = vif; 7017 7018 /* determine d11 io type before wiphy setup */ 7019 err = brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_VERSION, &io_type); 7020 if (err) { 7021 brcmf_err("Failed to get D11 version (%d)\n", err); 7022 goto priv_out; 7023 } 7024 cfg->d11inf.io_type = (u8)io_type; 7025 brcmu_d11_attach(&cfg->d11inf); 7026 7027 err = brcmf_setup_wiphy(wiphy, ifp); 7028 if (err < 0) 7029 goto priv_out; 7030 7031 brcmf_dbg(INFO, "Registering custom regulatory\n"); 7032 wiphy->reg_notifier = brcmf_cfg80211_reg_notifier; 7033 wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG; 7034 wiphy_apply_custom_regulatory(wiphy, &brcmf_regdom); 7035 7036 /* firmware defaults to 40MHz disabled in 2G band. We signal 7037 * cfg80211 here that we do and have it decide we can enable 7038 * it. But first check if device does support 2G operation. 7039 */ 7040 if (wiphy->bands[NL80211_BAND_2GHZ]) { 7041 cap = &wiphy->bands[NL80211_BAND_2GHZ]->ht_cap.cap; 7042 *cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; 7043 } 7044 err = wiphy_register(wiphy); 7045 if (err < 0) { 7046 brcmf_err("Could not register wiphy device (%d)\n", err); 7047 goto priv_out; 7048 } 7049 7050 err = brcmf_setup_wiphybands(wiphy); 7051 if (err) { 7052 brcmf_err("Setting wiphy bands failed (%d)\n", err); 7053 goto wiphy_unreg_out; 7054 } 7055 7056 /* If cfg80211 didn't disable 40MHz HT CAP in wiphy_register(), 7057 * setup 40MHz in 2GHz band and enable OBSS scanning. 7058 */ 7059 if (cap && (*cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40)) { 7060 err = brcmf_enable_bw40_2g(cfg); 7061 if (!err) 7062 err = brcmf_fil_iovar_int_set(ifp, "obss_coex", 7063 BRCMF_OBSS_COEX_AUTO); 7064 else 7065 *cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40; 7066 } 7067 /* p2p might require that "if-events" get processed by fweh. So 7068 * activate the already registered event handlers now and activate 7069 * the rest when initialization has completed. drvr->config needs to 7070 * be assigned before activating events. 7071 */ 7072 drvr->config = cfg; 7073 err = brcmf_fweh_activate_events(ifp); 7074 if (err) { 7075 brcmf_err("FWEH activation failed (%d)\n", err); 7076 goto wiphy_unreg_out; 7077 } 7078 7079 err = brcmf_p2p_attach(cfg, p2pdev_forced); 7080 if (err) { 7081 brcmf_err("P2P initialisation failed (%d)\n", err); 7082 goto wiphy_unreg_out; 7083 } 7084 err = brcmf_btcoex_attach(cfg); 7085 if (err) { 7086 brcmf_err("BT-coex initialisation failed (%d)\n", err); 7087 brcmf_p2p_detach(&cfg->p2p); 7088 goto wiphy_unreg_out; 7089 } 7090 err = brcmf_pno_attach(cfg); 7091 if (err) { 7092 brcmf_err("PNO initialisation failed (%d)\n", err); 7093 brcmf_btcoex_detach(cfg); 7094 brcmf_p2p_detach(&cfg->p2p); 7095 goto wiphy_unreg_out; 7096 } 7097 7098 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_TDLS)) { 7099 err = brcmf_fil_iovar_int_set(ifp, "tdls_enable", 1); 7100 if (err) { 7101 brcmf_dbg(INFO, "TDLS not enabled (%d)\n", err); 7102 wiphy->flags &= ~WIPHY_FLAG_SUPPORTS_TDLS; 7103 } else { 7104 brcmf_fweh_register(cfg->pub, BRCMF_E_TDLS_PEER_EVENT, 7105 brcmf_notify_tdls_peer_event); 7106 } 7107 } 7108 7109 /* (re-) activate FWEH event handling */ 7110 err = brcmf_fweh_activate_events(ifp); 7111 if (err) { 7112 brcmf_err("FWEH activation failed (%d)\n", err); 7113 goto detach; 7114 } 7115 7116 /* Fill in some of the advertised nl80211 supported features */ 7117 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_SCAN_RANDOM_MAC)) { 7118 wiphy->features |= NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR; 7119 #ifdef CONFIG_PM 7120 if (wiphy->wowlan && 7121 wiphy->wowlan->flags & WIPHY_WOWLAN_NET_DETECT) 7122 wiphy->features |= NL80211_FEATURE_ND_RANDOM_MAC_ADDR; 7123 #endif 7124 } 7125 7126 return cfg; 7127 7128 detach: 7129 brcmf_pno_detach(cfg); 7130 brcmf_btcoex_detach(cfg); 7131 brcmf_p2p_detach(&cfg->p2p); 7132 wiphy_unreg_out: 7133 wiphy_unregister(cfg->wiphy); 7134 priv_out: 7135 wl_deinit_priv(cfg); 7136 brcmf_free_vif(vif); 7137 ifp->vif = NULL; 7138 wiphy_out: 7139 brcmf_free_wiphy(wiphy); 7140 ops_out: 7141 kfree(ops); 7142 return NULL; 7143 } 7144 7145 void brcmf_cfg80211_detach(struct brcmf_cfg80211_info *cfg) 7146 { 7147 if (!cfg) 7148 return; 7149 7150 brcmf_pno_detach(cfg); 7151 brcmf_btcoex_detach(cfg); 7152 wiphy_unregister(cfg->wiphy); 7153 kfree(cfg->ops); 7154 wl_deinit_priv(cfg); 7155 brcmf_free_wiphy(cfg->wiphy); 7156 } 7157