1 /* 2 * Marvell Wireless LAN device driver: association and ad-hoc start/join 3 * 4 * Copyright (C) 2011-2014, Marvell International Ltd. 5 * 6 * This software file (the "File") is distributed by Marvell International 7 * Ltd. under the terms of the GNU General Public License Version 2, June 1991 8 * (the "License"). You may use, redistribute and/or modify this File in 9 * accordance with the terms and conditions of the License, a copy of which 10 * is available by writing to the Free Software Foundation, Inc., 11 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the 12 * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt. 13 * 14 * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE 16 * ARE EXPRESSLY DISCLAIMED. The License provides additional details about 17 * this warranty disclaimer. 18 */ 19 20 #include "decl.h" 21 #include "ioctl.h" 22 #include "util.h" 23 #include "fw.h" 24 #include "main.h" 25 #include "wmm.h" 26 #include "11n.h" 27 #include "11ac.h" 28 29 #define CAPINFO_MASK (~(BIT(15) | BIT(14) | BIT(12) | BIT(11) | BIT(9))) 30 31 /* 32 * Append a generic IE as a pass through TLV to a TLV buffer. 33 * 34 * This function is called from the network join command preparation routine. 35 * 36 * If the IE buffer has been setup by the application, this routine appends 37 * the buffer as a pass through TLV type to the request. 38 */ 39 static int 40 mwifiex_cmd_append_generic_ie(struct mwifiex_private *priv, u8 **buffer) 41 { 42 int ret_len = 0; 43 struct mwifiex_ie_types_header ie_header; 44 45 /* Null Checks */ 46 if (!buffer) 47 return 0; 48 if (!(*buffer)) 49 return 0; 50 51 /* 52 * If there is a generic ie buffer setup, append it to the return 53 * parameter buffer pointer. 54 */ 55 if (priv->gen_ie_buf_len) { 56 mwifiex_dbg(priv->adapter, INFO, 57 "info: %s: append generic ie len %d to %p\n", 58 __func__, priv->gen_ie_buf_len, *buffer); 59 60 /* Wrap the generic IE buffer with a pass through TLV type */ 61 ie_header.type = cpu_to_le16(TLV_TYPE_PASSTHROUGH); 62 ie_header.len = cpu_to_le16(priv->gen_ie_buf_len); 63 memcpy(*buffer, &ie_header, sizeof(ie_header)); 64 65 /* Increment the return size and the return buffer pointer 66 param */ 67 *buffer += sizeof(ie_header); 68 ret_len += sizeof(ie_header); 69 70 /* Copy the generic IE buffer to the output buffer, advance 71 pointer */ 72 memcpy(*buffer, priv->gen_ie_buf, priv->gen_ie_buf_len); 73 74 /* Increment the return size and the return buffer pointer 75 param */ 76 *buffer += priv->gen_ie_buf_len; 77 ret_len += priv->gen_ie_buf_len; 78 79 /* Reset the generic IE buffer */ 80 priv->gen_ie_buf_len = 0; 81 } 82 83 /* return the length appended to the buffer */ 84 return ret_len; 85 } 86 87 /* 88 * Append TSF tracking info from the scan table for the target AP. 89 * 90 * This function is called from the network join command preparation routine. 91 * 92 * The TSF table TSF sent to the firmware contains two TSF values: 93 * - The TSF of the target AP from its previous beacon/probe response 94 * - The TSF timestamp of our local MAC at the time we observed the 95 * beacon/probe response. 96 * 97 * The firmware uses the timestamp values to set an initial TSF value 98 * in the MAC for the new association after a reassociation attempt. 99 */ 100 static int 101 mwifiex_cmd_append_tsf_tlv(struct mwifiex_private *priv, u8 **buffer, 102 struct mwifiex_bssdescriptor *bss_desc) 103 { 104 struct mwifiex_ie_types_tsf_timestamp tsf_tlv; 105 __le64 tsf_val; 106 107 /* Null Checks */ 108 if (buffer == NULL) 109 return 0; 110 if (*buffer == NULL) 111 return 0; 112 113 memset(&tsf_tlv, 0x00, sizeof(struct mwifiex_ie_types_tsf_timestamp)); 114 115 tsf_tlv.header.type = cpu_to_le16(TLV_TYPE_TSFTIMESTAMP); 116 tsf_tlv.header.len = cpu_to_le16(2 * sizeof(tsf_val)); 117 118 memcpy(*buffer, &tsf_tlv, sizeof(tsf_tlv.header)); 119 *buffer += sizeof(tsf_tlv.header); 120 121 /* TSF at the time when beacon/probe_response was received */ 122 tsf_val = cpu_to_le64(bss_desc->fw_tsf); 123 memcpy(*buffer, &tsf_val, sizeof(tsf_val)); 124 *buffer += sizeof(tsf_val); 125 126 tsf_val = cpu_to_le64(bss_desc->timestamp); 127 128 mwifiex_dbg(priv->adapter, INFO, 129 "info: %s: TSF offset calc: %016llx - %016llx\n", 130 __func__, bss_desc->timestamp, bss_desc->fw_tsf); 131 132 memcpy(*buffer, &tsf_val, sizeof(tsf_val)); 133 *buffer += sizeof(tsf_val); 134 135 return sizeof(tsf_tlv.header) + (2 * sizeof(tsf_val)); 136 } 137 138 /* 139 * This function finds out the common rates between rate1 and rate2. 140 * 141 * It will fill common rates in rate1 as output if found. 142 * 143 * NOTE: Setting the MSB of the basic rates needs to be taken 144 * care of, either before or after calling this function. 145 */ 146 static int mwifiex_get_common_rates(struct mwifiex_private *priv, u8 *rate1, 147 u32 rate1_size, u8 *rate2, u32 rate2_size) 148 { 149 int ret; 150 u8 *ptr = rate1, *tmp; 151 u32 i, j; 152 153 tmp = kmemdup(rate1, rate1_size, GFP_KERNEL); 154 if (!tmp) { 155 mwifiex_dbg(priv->adapter, ERROR, "failed to alloc tmp buf\n"); 156 return -ENOMEM; 157 } 158 159 memset(rate1, 0, rate1_size); 160 161 for (i = 0; i < rate2_size && rate2[i]; i++) { 162 for (j = 0; j < rate1_size && tmp[j]; j++) { 163 /* Check common rate, excluding the bit for 164 basic rate */ 165 if ((rate2[i] & 0x7F) == (tmp[j] & 0x7F)) { 166 *rate1++ = tmp[j]; 167 break; 168 } 169 } 170 } 171 172 mwifiex_dbg(priv->adapter, INFO, "info: Tx data rate set to %#x\n", 173 priv->data_rate); 174 175 if (!priv->is_data_rate_auto) { 176 while (*ptr) { 177 if ((*ptr & 0x7f) == priv->data_rate) { 178 ret = 0; 179 goto done; 180 } 181 ptr++; 182 } 183 mwifiex_dbg(priv->adapter, ERROR, 184 "previously set fixed data rate %#x\t" 185 "is not compatible with the network\n", 186 priv->data_rate); 187 188 ret = -1; 189 goto done; 190 } 191 192 ret = 0; 193 done: 194 kfree(tmp); 195 return ret; 196 } 197 198 /* 199 * This function creates the intersection of the rates supported by a 200 * target BSS and our adapter settings for use in an assoc/join command. 201 */ 202 static int 203 mwifiex_setup_rates_from_bssdesc(struct mwifiex_private *priv, 204 struct mwifiex_bssdescriptor *bss_desc, 205 u8 *out_rates, u32 *out_rates_size) 206 { 207 u8 card_rates[MWIFIEX_SUPPORTED_RATES]; 208 u32 card_rates_size; 209 210 /* Copy AP supported rates */ 211 memcpy(out_rates, bss_desc->supported_rates, MWIFIEX_SUPPORTED_RATES); 212 /* Get the STA supported rates */ 213 card_rates_size = mwifiex_get_active_data_rates(priv, card_rates); 214 /* Get the common rates between AP and STA supported rates */ 215 if (mwifiex_get_common_rates(priv, out_rates, MWIFIEX_SUPPORTED_RATES, 216 card_rates, card_rates_size)) { 217 *out_rates_size = 0; 218 mwifiex_dbg(priv->adapter, ERROR, 219 "%s: cannot get common rates\n", 220 __func__); 221 return -1; 222 } 223 224 *out_rates_size = 225 min_t(size_t, strlen(out_rates), MWIFIEX_SUPPORTED_RATES); 226 227 return 0; 228 } 229 230 /* 231 * This function appends a WPS IE. It is called from the network join command 232 * preparation routine. 233 * 234 * If the IE buffer has been setup by the application, this routine appends 235 * the buffer as a WPS TLV type to the request. 236 */ 237 static int 238 mwifiex_cmd_append_wps_ie(struct mwifiex_private *priv, u8 **buffer) 239 { 240 int retLen = 0; 241 struct mwifiex_ie_types_header ie_header; 242 243 if (!buffer || !*buffer) 244 return 0; 245 246 /* 247 * If there is a wps ie buffer setup, append it to the return 248 * parameter buffer pointer. 249 */ 250 if (priv->wps_ie_len) { 251 mwifiex_dbg(priv->adapter, CMD, 252 "cmd: append wps ie %d to %p\n", 253 priv->wps_ie_len, *buffer); 254 255 /* Wrap the generic IE buffer with a pass through TLV type */ 256 ie_header.type = cpu_to_le16(TLV_TYPE_MGMT_IE); 257 ie_header.len = cpu_to_le16(priv->wps_ie_len); 258 memcpy(*buffer, &ie_header, sizeof(ie_header)); 259 *buffer += sizeof(ie_header); 260 retLen += sizeof(ie_header); 261 262 memcpy(*buffer, priv->wps_ie, priv->wps_ie_len); 263 *buffer += priv->wps_ie_len; 264 retLen += priv->wps_ie_len; 265 266 } 267 268 kfree(priv->wps_ie); 269 priv->wps_ie_len = 0; 270 return retLen; 271 } 272 273 /* 274 * This function appends a WAPI IE. 275 * 276 * This function is called from the network join command preparation routine. 277 * 278 * If the IE buffer has been setup by the application, this routine appends 279 * the buffer as a WAPI TLV type to the request. 280 */ 281 static int 282 mwifiex_cmd_append_wapi_ie(struct mwifiex_private *priv, u8 **buffer) 283 { 284 int retLen = 0; 285 struct mwifiex_ie_types_header ie_header; 286 287 /* Null Checks */ 288 if (buffer == NULL) 289 return 0; 290 if (*buffer == NULL) 291 return 0; 292 293 /* 294 * If there is a wapi ie buffer setup, append it to the return 295 * parameter buffer pointer. 296 */ 297 if (priv->wapi_ie_len) { 298 mwifiex_dbg(priv->adapter, CMD, 299 "cmd: append wapi ie %d to %p\n", 300 priv->wapi_ie_len, *buffer); 301 302 /* Wrap the generic IE buffer with a pass through TLV type */ 303 ie_header.type = cpu_to_le16(TLV_TYPE_WAPI_IE); 304 ie_header.len = cpu_to_le16(priv->wapi_ie_len); 305 memcpy(*buffer, &ie_header, sizeof(ie_header)); 306 307 /* Increment the return size and the return buffer pointer 308 param */ 309 *buffer += sizeof(ie_header); 310 retLen += sizeof(ie_header); 311 312 /* Copy the wapi IE buffer to the output buffer, advance 313 pointer */ 314 memcpy(*buffer, priv->wapi_ie, priv->wapi_ie_len); 315 316 /* Increment the return size and the return buffer pointer 317 param */ 318 *buffer += priv->wapi_ie_len; 319 retLen += priv->wapi_ie_len; 320 321 } 322 /* return the length appended to the buffer */ 323 return retLen; 324 } 325 326 /* 327 * This function appends rsn ie tlv for wpa/wpa2 security modes. 328 * It is called from the network join command preparation routine. 329 */ 330 static int mwifiex_append_rsn_ie_wpa_wpa2(struct mwifiex_private *priv, 331 u8 **buffer) 332 { 333 struct mwifiex_ie_types_rsn_param_set *rsn_ie_tlv; 334 int rsn_ie_len; 335 336 if (!buffer || !(*buffer)) 337 return 0; 338 339 rsn_ie_tlv = (struct mwifiex_ie_types_rsn_param_set *) (*buffer); 340 rsn_ie_tlv->header.type = cpu_to_le16((u16) priv->wpa_ie[0]); 341 rsn_ie_tlv->header.type = cpu_to_le16( 342 le16_to_cpu(rsn_ie_tlv->header.type) & 0x00FF); 343 rsn_ie_tlv->header.len = cpu_to_le16((u16) priv->wpa_ie[1]); 344 rsn_ie_tlv->header.len = cpu_to_le16(le16_to_cpu(rsn_ie_tlv->header.len) 345 & 0x00FF); 346 if (le16_to_cpu(rsn_ie_tlv->header.len) <= (sizeof(priv->wpa_ie) - 2)) 347 memcpy(rsn_ie_tlv->rsn_ie, &priv->wpa_ie[2], 348 le16_to_cpu(rsn_ie_tlv->header.len)); 349 else 350 return -1; 351 352 rsn_ie_len = sizeof(rsn_ie_tlv->header) + 353 le16_to_cpu(rsn_ie_tlv->header.len); 354 *buffer += rsn_ie_len; 355 356 return rsn_ie_len; 357 } 358 359 /* 360 * This function prepares command for association. 361 * 362 * This sets the following parameters - 363 * - Peer MAC address 364 * - Listen interval 365 * - Beacon interval 366 * - Capability information 367 * 368 * ...and the following TLVs, as required - 369 * - SSID TLV 370 * - PHY TLV 371 * - SS TLV 372 * - Rates TLV 373 * - Authentication TLV 374 * - Channel TLV 375 * - WPA/WPA2 IE 376 * - 11n TLV 377 * - Vendor specific TLV 378 * - WMM TLV 379 * - WAPI IE 380 * - Generic IE 381 * - TSF TLV 382 * 383 * Preparation also includes - 384 * - Setting command ID and proper size 385 * - Ensuring correct endian-ness 386 */ 387 int mwifiex_cmd_802_11_associate(struct mwifiex_private *priv, 388 struct host_cmd_ds_command *cmd, 389 struct mwifiex_bssdescriptor *bss_desc) 390 { 391 struct host_cmd_ds_802_11_associate *assoc = &cmd->params.associate; 392 struct mwifiex_ie_types_ssid_param_set *ssid_tlv; 393 struct mwifiex_ie_types_phy_param_set *phy_tlv; 394 struct mwifiex_ie_types_ss_param_set *ss_tlv; 395 struct mwifiex_ie_types_rates_param_set *rates_tlv; 396 struct mwifiex_ie_types_auth_type *auth_tlv; 397 struct mwifiex_ie_types_chan_list_param_set *chan_tlv; 398 u8 rates[MWIFIEX_SUPPORTED_RATES]; 399 u32 rates_size; 400 u16 tmp_cap; 401 u8 *pos; 402 int rsn_ie_len = 0; 403 404 pos = (u8 *) assoc; 405 406 cmd->command = cpu_to_le16(HostCmd_CMD_802_11_ASSOCIATE); 407 408 /* Save so we know which BSS Desc to use in the response handler */ 409 priv->attempted_bss_desc = bss_desc; 410 411 memcpy(assoc->peer_sta_addr, 412 bss_desc->mac_address, sizeof(assoc->peer_sta_addr)); 413 pos += sizeof(assoc->peer_sta_addr); 414 415 /* Set the listen interval */ 416 assoc->listen_interval = cpu_to_le16(priv->listen_interval); 417 /* Set the beacon period */ 418 assoc->beacon_period = cpu_to_le16(bss_desc->beacon_period); 419 420 pos += sizeof(assoc->cap_info_bitmap); 421 pos += sizeof(assoc->listen_interval); 422 pos += sizeof(assoc->beacon_period); 423 pos += sizeof(assoc->dtim_period); 424 425 ssid_tlv = (struct mwifiex_ie_types_ssid_param_set *) pos; 426 ssid_tlv->header.type = cpu_to_le16(WLAN_EID_SSID); 427 ssid_tlv->header.len = cpu_to_le16((u16) bss_desc->ssid.ssid_len); 428 memcpy(ssid_tlv->ssid, bss_desc->ssid.ssid, 429 le16_to_cpu(ssid_tlv->header.len)); 430 pos += sizeof(ssid_tlv->header) + le16_to_cpu(ssid_tlv->header.len); 431 432 phy_tlv = (struct mwifiex_ie_types_phy_param_set *) pos; 433 phy_tlv->header.type = cpu_to_le16(WLAN_EID_DS_PARAMS); 434 phy_tlv->header.len = cpu_to_le16(sizeof(phy_tlv->fh_ds.ds_param_set)); 435 memcpy(&phy_tlv->fh_ds.ds_param_set, 436 &bss_desc->phy_param_set.ds_param_set.current_chan, 437 sizeof(phy_tlv->fh_ds.ds_param_set)); 438 pos += sizeof(phy_tlv->header) + le16_to_cpu(phy_tlv->header.len); 439 440 ss_tlv = (struct mwifiex_ie_types_ss_param_set *) pos; 441 ss_tlv->header.type = cpu_to_le16(WLAN_EID_CF_PARAMS); 442 ss_tlv->header.len = cpu_to_le16(sizeof(ss_tlv->cf_ibss.cf_param_set)); 443 pos += sizeof(ss_tlv->header) + le16_to_cpu(ss_tlv->header.len); 444 445 /* Get the common rates supported between the driver and the BSS Desc */ 446 if (mwifiex_setup_rates_from_bssdesc 447 (priv, bss_desc, rates, &rates_size)) 448 return -1; 449 450 /* Save the data rates into Current BSS state structure */ 451 priv->curr_bss_params.num_of_rates = rates_size; 452 memcpy(&priv->curr_bss_params.data_rates, rates, rates_size); 453 454 /* Setup the Rates TLV in the association command */ 455 rates_tlv = (struct mwifiex_ie_types_rates_param_set *) pos; 456 rates_tlv->header.type = cpu_to_le16(WLAN_EID_SUPP_RATES); 457 rates_tlv->header.len = cpu_to_le16((u16) rates_size); 458 memcpy(rates_tlv->rates, rates, rates_size); 459 pos += sizeof(rates_tlv->header) + rates_size; 460 mwifiex_dbg(priv->adapter, INFO, "info: ASSOC_CMD: rates size = %d\n", 461 rates_size); 462 463 /* Add the Authentication type to be used for Auth frames */ 464 auth_tlv = (struct mwifiex_ie_types_auth_type *) pos; 465 auth_tlv->header.type = cpu_to_le16(TLV_TYPE_AUTH_TYPE); 466 auth_tlv->header.len = cpu_to_le16(sizeof(auth_tlv->auth_type)); 467 if (priv->sec_info.wep_enabled) 468 auth_tlv->auth_type = cpu_to_le16( 469 (u16) priv->sec_info.authentication_mode); 470 else 471 auth_tlv->auth_type = cpu_to_le16(NL80211_AUTHTYPE_OPEN_SYSTEM); 472 473 pos += sizeof(auth_tlv->header) + le16_to_cpu(auth_tlv->header.len); 474 475 if (IS_SUPPORT_MULTI_BANDS(priv->adapter) && 476 !(ISSUPP_11NENABLED(priv->adapter->fw_cap_info) && 477 (!bss_desc->disable_11n) && 478 (priv->adapter->config_bands & BAND_GN || 479 priv->adapter->config_bands & BAND_AN) && 480 (bss_desc->bcn_ht_cap) 481 ) 482 ) { 483 /* Append a channel TLV for the channel the attempted AP was 484 found on */ 485 chan_tlv = (struct mwifiex_ie_types_chan_list_param_set *) pos; 486 chan_tlv->header.type = cpu_to_le16(TLV_TYPE_CHANLIST); 487 chan_tlv->header.len = 488 cpu_to_le16(sizeof(struct mwifiex_chan_scan_param_set)); 489 490 memset(chan_tlv->chan_scan_param, 0x00, 491 sizeof(struct mwifiex_chan_scan_param_set)); 492 chan_tlv->chan_scan_param[0].chan_number = 493 (bss_desc->phy_param_set.ds_param_set.current_chan); 494 mwifiex_dbg(priv->adapter, INFO, "info: Assoc: TLV Chan = %d\n", 495 chan_tlv->chan_scan_param[0].chan_number); 496 497 chan_tlv->chan_scan_param[0].radio_type = 498 mwifiex_band_to_radio_type((u8) bss_desc->bss_band); 499 500 mwifiex_dbg(priv->adapter, INFO, "info: Assoc: TLV Band = %d\n", 501 chan_tlv->chan_scan_param[0].radio_type); 502 pos += sizeof(chan_tlv->header) + 503 sizeof(struct mwifiex_chan_scan_param_set); 504 } 505 506 if (!priv->wps.session_enable) { 507 if (priv->sec_info.wpa_enabled || priv->sec_info.wpa2_enabled) 508 rsn_ie_len = mwifiex_append_rsn_ie_wpa_wpa2(priv, &pos); 509 510 if (rsn_ie_len == -1) 511 return -1; 512 } 513 514 if (ISSUPP_11NENABLED(priv->adapter->fw_cap_info) && 515 (!bss_desc->disable_11n) && 516 (priv->adapter->config_bands & BAND_GN || 517 priv->adapter->config_bands & BAND_AN)) 518 mwifiex_cmd_append_11n_tlv(priv, bss_desc, &pos); 519 520 if (ISSUPP_11ACENABLED(priv->adapter->fw_cap_info) && 521 !bss_desc->disable_11n && !bss_desc->disable_11ac && 522 priv->adapter->config_bands & BAND_AAC) 523 mwifiex_cmd_append_11ac_tlv(priv, bss_desc, &pos); 524 525 /* Append vendor specific IE TLV */ 526 mwifiex_cmd_append_vsie_tlv(priv, MWIFIEX_VSIE_MASK_ASSOC, &pos); 527 528 mwifiex_wmm_process_association_req(priv, &pos, &bss_desc->wmm_ie, 529 bss_desc->bcn_ht_cap); 530 if (priv->sec_info.wapi_enabled && priv->wapi_ie_len) 531 mwifiex_cmd_append_wapi_ie(priv, &pos); 532 533 if (priv->wps.session_enable && priv->wps_ie_len) 534 mwifiex_cmd_append_wps_ie(priv, &pos); 535 536 mwifiex_cmd_append_generic_ie(priv, &pos); 537 538 mwifiex_cmd_append_tsf_tlv(priv, &pos, bss_desc); 539 540 mwifiex_11h_process_join(priv, &pos, bss_desc); 541 542 cmd->size = cpu_to_le16((u16) (pos - (u8 *) assoc) + S_DS_GEN); 543 544 /* Set the Capability info at last */ 545 tmp_cap = bss_desc->cap_info_bitmap; 546 547 if (priv->adapter->config_bands == BAND_B) 548 tmp_cap &= ~WLAN_CAPABILITY_SHORT_SLOT_TIME; 549 550 tmp_cap &= CAPINFO_MASK; 551 mwifiex_dbg(priv->adapter, INFO, 552 "info: ASSOC_CMD: tmp_cap=%4X CAPINFO_MASK=%4lX\n", 553 tmp_cap, CAPINFO_MASK); 554 assoc->cap_info_bitmap = cpu_to_le16(tmp_cap); 555 556 return 0; 557 } 558 559 static const char *assoc_failure_reason_to_str(u16 cap_info) 560 { 561 switch (cap_info) { 562 case CONNECT_ERR_AUTH_ERR_STA_FAILURE: 563 return "CONNECT_ERR_AUTH_ERR_STA_FAILURE"; 564 case CONNECT_ERR_AUTH_MSG_UNHANDLED: 565 return "CONNECT_ERR_AUTH_MSG_UNHANDLED"; 566 case CONNECT_ERR_ASSOC_ERR_TIMEOUT: 567 return "CONNECT_ERR_ASSOC_ERR_TIMEOUT"; 568 case CONNECT_ERR_ASSOC_ERR_AUTH_REFUSED: 569 return "CONNECT_ERR_ASSOC_ERR_AUTH_REFUSED"; 570 case CONNECT_ERR_STA_FAILURE: 571 return "CONNECT_ERR_STA_FAILURE"; 572 } 573 574 return "Unknown connect failure"; 575 } 576 /* 577 * Association firmware command response handler 578 * 579 * The response buffer for the association command has the following 580 * memory layout. 581 * 582 * For cases where an association response was not received (indicated 583 * by the CapInfo and AId field): 584 * 585 * .------------------------------------------------------------. 586 * | Header(4 * sizeof(t_u16)): Standard command response hdr | 587 * .------------------------------------------------------------. 588 * | cap_info/Error Return(t_u16): | 589 * | 0xFFFF(-1): Internal error | 590 * | 0xFFFE(-2): Authentication unhandled message | 591 * | 0xFFFD(-3): Authentication refused | 592 * | 0xFFFC(-4): Timeout waiting for AP response | 593 * .------------------------------------------------------------. 594 * | status_code(t_u16): | 595 * | If cap_info is -1: | 596 * | An internal firmware failure prevented the | 597 * | command from being processed. The status_code | 598 * | will be set to 1. | 599 * | | 600 * | If cap_info is -2: | 601 * | An authentication frame was received but was | 602 * | not handled by the firmware. IEEE Status | 603 * | code for the failure is returned. | 604 * | | 605 * | If cap_info is -3: | 606 * | An authentication frame was received and the | 607 * | status_code is the IEEE Status reported in the | 608 * | response. | 609 * | | 610 * | If cap_info is -4: | 611 * | (1) Association response timeout | 612 * | (2) Authentication response timeout | 613 * .------------------------------------------------------------. 614 * | a_id(t_u16): 0xFFFF | 615 * .------------------------------------------------------------. 616 * 617 * 618 * For cases where an association response was received, the IEEE 619 * standard association response frame is returned: 620 * 621 * .------------------------------------------------------------. 622 * | Header(4 * sizeof(t_u16)): Standard command response hdr | 623 * .------------------------------------------------------------. 624 * | cap_info(t_u16): IEEE Capability | 625 * .------------------------------------------------------------. 626 * | status_code(t_u16): IEEE Status Code | 627 * .------------------------------------------------------------. 628 * | a_id(t_u16): IEEE Association ID | 629 * .------------------------------------------------------------. 630 * | IEEE IEs(variable): Any received IEs comprising the | 631 * | remaining portion of a received | 632 * | association response frame. | 633 * .------------------------------------------------------------. 634 * 635 * For simplistic handling, the status_code field can be used to determine 636 * an association success (0) or failure (non-zero). 637 */ 638 int mwifiex_ret_802_11_associate(struct mwifiex_private *priv, 639 struct host_cmd_ds_command *resp) 640 { 641 struct mwifiex_adapter *adapter = priv->adapter; 642 int ret = 0; 643 struct ieee_types_assoc_rsp *assoc_rsp; 644 struct mwifiex_bssdescriptor *bss_desc; 645 bool enable_data = true; 646 u16 cap_info, status_code, aid; 647 const u8 *ie_ptr; 648 struct ieee80211_ht_operation *assoc_resp_ht_oper; 649 650 if (!priv->attempted_bss_desc) { 651 mwifiex_dbg(priv->adapter, ERROR, 652 "ASSOC_RESP: failed, association terminated by host\n"); 653 goto done; 654 } 655 656 assoc_rsp = (struct ieee_types_assoc_rsp *) &resp->params; 657 658 cap_info = le16_to_cpu(assoc_rsp->cap_info_bitmap); 659 status_code = le16_to_cpu(assoc_rsp->status_code); 660 aid = le16_to_cpu(assoc_rsp->a_id); 661 662 if ((aid & (BIT(15) | BIT(14))) != (BIT(15) | BIT(14))) 663 dev_err(priv->adapter->dev, 664 "invalid AID value 0x%x; bits 15:14 not set\n", 665 aid); 666 667 aid &= ~(BIT(15) | BIT(14)); 668 669 priv->assoc_rsp_size = min(le16_to_cpu(resp->size) - S_DS_GEN, 670 sizeof(priv->assoc_rsp_buf)); 671 672 memcpy(priv->assoc_rsp_buf, &resp->params, priv->assoc_rsp_size); 673 674 assoc_rsp->a_id = cpu_to_le16(aid); 675 676 if (status_code) { 677 priv->adapter->dbg.num_cmd_assoc_failure++; 678 mwifiex_dbg(priv->adapter, ERROR, 679 "ASSOC_RESP: failed,\t" 680 "status code=%d err=%#x a_id=%#x\n", 681 status_code, cap_info, 682 le16_to_cpu(assoc_rsp->a_id)); 683 684 mwifiex_dbg(priv->adapter, ERROR, "assoc failure: reason %s\n", 685 assoc_failure_reason_to_str(cap_info)); 686 if (cap_info == CONNECT_ERR_ASSOC_ERR_TIMEOUT) { 687 if (status_code == MWIFIEX_ASSOC_CMD_FAILURE_AUTH) { 688 ret = WLAN_STATUS_AUTH_TIMEOUT; 689 mwifiex_dbg(priv->adapter, ERROR, 690 "ASSOC_RESP: AUTH timeout\n"); 691 } else { 692 ret = WLAN_STATUS_UNSPECIFIED_FAILURE; 693 mwifiex_dbg(priv->adapter, ERROR, 694 "ASSOC_RESP: UNSPECIFIED failure\n"); 695 } 696 } else { 697 ret = status_code; 698 } 699 700 goto done; 701 } 702 703 /* Send a Media Connected event, according to the Spec */ 704 priv->media_connected = true; 705 706 priv->adapter->ps_state = PS_STATE_AWAKE; 707 priv->adapter->pps_uapsd_mode = false; 708 priv->adapter->tx_lock_flag = false; 709 710 /* Set the attempted BSSID Index to current */ 711 bss_desc = priv->attempted_bss_desc; 712 713 mwifiex_dbg(priv->adapter, INFO, "info: ASSOC_RESP: %s\n", 714 bss_desc->ssid.ssid); 715 716 /* Make a copy of current BSSID descriptor */ 717 memcpy(&priv->curr_bss_params.bss_descriptor, 718 bss_desc, sizeof(struct mwifiex_bssdescriptor)); 719 720 /* Update curr_bss_params */ 721 priv->curr_bss_params.bss_descriptor.channel 722 = bss_desc->phy_param_set.ds_param_set.current_chan; 723 724 priv->curr_bss_params.band = (u8) bss_desc->bss_band; 725 726 if (bss_desc->wmm_ie.vend_hdr.element_id == WLAN_EID_VENDOR_SPECIFIC) 727 priv->curr_bss_params.wmm_enabled = true; 728 else 729 priv->curr_bss_params.wmm_enabled = false; 730 731 if ((priv->wmm_required || bss_desc->bcn_ht_cap) && 732 priv->curr_bss_params.wmm_enabled) 733 priv->wmm_enabled = true; 734 else 735 priv->wmm_enabled = false; 736 737 priv->curr_bss_params.wmm_uapsd_enabled = false; 738 739 if (priv->wmm_enabled) 740 priv->curr_bss_params.wmm_uapsd_enabled 741 = ((bss_desc->wmm_ie.qos_info_bitmap & 742 IEEE80211_WMM_IE_AP_QOSINFO_UAPSD) ? 1 : 0); 743 744 /* Store the bandwidth information from assoc response */ 745 ie_ptr = cfg80211_find_ie(WLAN_EID_HT_OPERATION, assoc_rsp->ie_buffer, 746 priv->assoc_rsp_size 747 - sizeof(struct ieee_types_assoc_rsp)); 748 if (ie_ptr) { 749 assoc_resp_ht_oper = (struct ieee80211_ht_operation *)(ie_ptr 750 + sizeof(struct ieee_types_header)); 751 priv->assoc_resp_ht_param = assoc_resp_ht_oper->ht_param; 752 priv->ht_param_present = true; 753 } else { 754 priv->ht_param_present = false; 755 } 756 757 mwifiex_dbg(priv->adapter, INFO, 758 "info: ASSOC_RESP: curr_pkt_filter is %#x\n", 759 priv->curr_pkt_filter); 760 if (priv->sec_info.wpa_enabled || priv->sec_info.wpa2_enabled) 761 priv->wpa_is_gtk_set = false; 762 763 if (priv->wmm_enabled) { 764 /* Don't re-enable carrier until we get the WMM_GET_STATUS 765 event */ 766 enable_data = false; 767 } else { 768 /* Since WMM is not enabled, setup the queues with the 769 defaults */ 770 mwifiex_wmm_setup_queue_priorities(priv, NULL); 771 mwifiex_wmm_setup_ac_downgrade(priv); 772 } 773 774 if (enable_data) 775 mwifiex_dbg(priv->adapter, INFO, 776 "info: post association, re-enabling data flow\n"); 777 778 /* Reset SNR/NF/RSSI values */ 779 priv->data_rssi_last = 0; 780 priv->data_nf_last = 0; 781 priv->data_rssi_avg = 0; 782 priv->data_nf_avg = 0; 783 priv->bcn_rssi_last = 0; 784 priv->bcn_nf_last = 0; 785 priv->bcn_rssi_avg = 0; 786 priv->bcn_nf_avg = 0; 787 priv->rxpd_rate = 0; 788 priv->rxpd_htinfo = 0; 789 790 mwifiex_save_curr_bcn(priv); 791 792 priv->adapter->dbg.num_cmd_assoc_success++; 793 794 mwifiex_dbg(priv->adapter, INFO, "info: ASSOC_RESP: associated\n"); 795 796 /* Add the ra_list here for infra mode as there will be only 1 ra 797 always */ 798 mwifiex_ralist_add(priv, 799 priv->curr_bss_params.bss_descriptor.mac_address); 800 801 if (!netif_carrier_ok(priv->netdev)) 802 netif_carrier_on(priv->netdev); 803 mwifiex_wake_up_net_dev_queue(priv->netdev, adapter); 804 805 if (priv->sec_info.wpa_enabled || priv->sec_info.wpa2_enabled) 806 priv->scan_block = true; 807 else 808 priv->port_open = true; 809 810 done: 811 /* Need to indicate IOCTL complete */ 812 if (adapter->curr_cmd->wait_q_enabled) { 813 if (ret) 814 adapter->cmd_wait_q.status = -1; 815 else 816 adapter->cmd_wait_q.status = 0; 817 } 818 819 return ret; 820 } 821 822 /* 823 * This function prepares command for ad-hoc start. 824 * 825 * Driver will fill up SSID, BSS mode, IBSS parameters, physical 826 * parameters, probe delay, and capability information. Firmware 827 * will fill up beacon period, basic rates and operational rates. 828 * 829 * In addition, the following TLVs are added - 830 * - Channel TLV 831 * - Vendor specific IE 832 * - WPA/WPA2 IE 833 * - HT Capabilities IE 834 * - HT Information IE 835 * 836 * Preparation also includes - 837 * - Setting command ID and proper size 838 * - Ensuring correct endian-ness 839 */ 840 int 841 mwifiex_cmd_802_11_ad_hoc_start(struct mwifiex_private *priv, 842 struct host_cmd_ds_command *cmd, 843 struct cfg80211_ssid *req_ssid) 844 { 845 int rsn_ie_len = 0; 846 struct mwifiex_adapter *adapter = priv->adapter; 847 struct host_cmd_ds_802_11_ad_hoc_start *adhoc_start = 848 &cmd->params.adhoc_start; 849 struct mwifiex_bssdescriptor *bss_desc; 850 u32 cmd_append_size = 0; 851 u32 i; 852 u16 tmp_cap; 853 struct mwifiex_ie_types_chan_list_param_set *chan_tlv; 854 u8 radio_type; 855 856 struct mwifiex_ie_types_htcap *ht_cap; 857 struct mwifiex_ie_types_htinfo *ht_info; 858 u8 *pos = (u8 *) adhoc_start + 859 sizeof(struct host_cmd_ds_802_11_ad_hoc_start); 860 861 if (!adapter) 862 return -1; 863 864 cmd->command = cpu_to_le16(HostCmd_CMD_802_11_AD_HOC_START); 865 866 bss_desc = &priv->curr_bss_params.bss_descriptor; 867 priv->attempted_bss_desc = bss_desc; 868 869 /* 870 * Fill in the parameters for 2 data structures: 871 * 1. struct host_cmd_ds_802_11_ad_hoc_start command 872 * 2. bss_desc 873 * Driver will fill up SSID, bss_mode,IBSS param, Physical Param, 874 * probe delay, and Cap info. 875 * Firmware will fill up beacon period, Basic rates 876 * and operational rates. 877 */ 878 879 memset(adhoc_start->ssid, 0, IEEE80211_MAX_SSID_LEN); 880 881 memcpy(adhoc_start->ssid, req_ssid->ssid, req_ssid->ssid_len); 882 883 mwifiex_dbg(adapter, INFO, "info: ADHOC_S_CMD: SSID = %s\n", 884 adhoc_start->ssid); 885 886 memset(bss_desc->ssid.ssid, 0, IEEE80211_MAX_SSID_LEN); 887 memcpy(bss_desc->ssid.ssid, req_ssid->ssid, req_ssid->ssid_len); 888 889 bss_desc->ssid.ssid_len = req_ssid->ssid_len; 890 891 /* Set the BSS mode */ 892 adhoc_start->bss_mode = HostCmd_BSS_MODE_IBSS; 893 bss_desc->bss_mode = NL80211_IFTYPE_ADHOC; 894 adhoc_start->beacon_period = cpu_to_le16(priv->beacon_period); 895 bss_desc->beacon_period = priv->beacon_period; 896 897 /* Set Physical param set */ 898 /* Parameter IE Id */ 899 #define DS_PARA_IE_ID 3 900 /* Parameter IE length */ 901 #define DS_PARA_IE_LEN 1 902 903 adhoc_start->phy_param_set.ds_param_set.element_id = DS_PARA_IE_ID; 904 adhoc_start->phy_param_set.ds_param_set.len = DS_PARA_IE_LEN; 905 906 if (!mwifiex_get_cfp(priv, adapter->adhoc_start_band, 907 (u16) priv->adhoc_channel, 0)) { 908 struct mwifiex_chan_freq_power *cfp; 909 cfp = mwifiex_get_cfp(priv, adapter->adhoc_start_band, 910 FIRST_VALID_CHANNEL, 0); 911 if (cfp) 912 priv->adhoc_channel = (u8) cfp->channel; 913 } 914 915 if (!priv->adhoc_channel) { 916 mwifiex_dbg(adapter, ERROR, 917 "ADHOC_S_CMD: adhoc_channel cannot be 0\n"); 918 return -1; 919 } 920 921 mwifiex_dbg(adapter, INFO, 922 "info: ADHOC_S_CMD: creating ADHOC on channel %d\n", 923 priv->adhoc_channel); 924 925 priv->curr_bss_params.bss_descriptor.channel = priv->adhoc_channel; 926 priv->curr_bss_params.band = adapter->adhoc_start_band; 927 928 bss_desc->channel = priv->adhoc_channel; 929 adhoc_start->phy_param_set.ds_param_set.current_chan = 930 priv->adhoc_channel; 931 932 memcpy(&bss_desc->phy_param_set, &adhoc_start->phy_param_set, 933 sizeof(union ieee_types_phy_param_set)); 934 935 /* Set IBSS param set */ 936 /* IBSS parameter IE Id */ 937 #define IBSS_PARA_IE_ID 6 938 /* IBSS parameter IE length */ 939 #define IBSS_PARA_IE_LEN 2 940 941 adhoc_start->ss_param_set.ibss_param_set.element_id = IBSS_PARA_IE_ID; 942 adhoc_start->ss_param_set.ibss_param_set.len = IBSS_PARA_IE_LEN; 943 adhoc_start->ss_param_set.ibss_param_set.atim_window 944 = cpu_to_le16(priv->atim_window); 945 memcpy(&bss_desc->ss_param_set, &adhoc_start->ss_param_set, 946 sizeof(union ieee_types_ss_param_set)); 947 948 /* Set Capability info */ 949 bss_desc->cap_info_bitmap |= WLAN_CAPABILITY_IBSS; 950 tmp_cap = WLAN_CAPABILITY_IBSS; 951 952 /* Set up privacy in bss_desc */ 953 if (priv->sec_info.encryption_mode) { 954 /* Ad-Hoc capability privacy on */ 955 mwifiex_dbg(adapter, INFO, 956 "info: ADHOC_S_CMD: wep_status set privacy to WEP\n"); 957 bss_desc->privacy = MWIFIEX_802_11_PRIV_FILTER_8021X_WEP; 958 tmp_cap |= WLAN_CAPABILITY_PRIVACY; 959 } else { 960 mwifiex_dbg(adapter, INFO, 961 "info: ADHOC_S_CMD: wep_status NOT set,\t" 962 "setting privacy to ACCEPT ALL\n"); 963 bss_desc->privacy = MWIFIEX_802_11_PRIV_FILTER_ACCEPT_ALL; 964 } 965 966 memset(adhoc_start->data_rate, 0, sizeof(adhoc_start->data_rate)); 967 mwifiex_get_active_data_rates(priv, adhoc_start->data_rate); 968 if ((adapter->adhoc_start_band & BAND_G) && 969 (priv->curr_pkt_filter & HostCmd_ACT_MAC_ADHOC_G_PROTECTION_ON)) { 970 if (mwifiex_send_cmd(priv, HostCmd_CMD_MAC_CONTROL, 971 HostCmd_ACT_GEN_SET, 0, 972 &priv->curr_pkt_filter, false)) { 973 mwifiex_dbg(adapter, ERROR, 974 "ADHOC_S_CMD: G Protection config failed\n"); 975 return -1; 976 } 977 } 978 /* Find the last non zero */ 979 for (i = 0; i < sizeof(adhoc_start->data_rate); i++) 980 if (!adhoc_start->data_rate[i]) 981 break; 982 983 priv->curr_bss_params.num_of_rates = i; 984 985 /* Copy the ad-hoc creating rates into Current BSS rate structure */ 986 memcpy(&priv->curr_bss_params.data_rates, 987 &adhoc_start->data_rate, priv->curr_bss_params.num_of_rates); 988 989 mwifiex_dbg(adapter, INFO, "info: ADHOC_S_CMD: rates=%4ph\n", 990 adhoc_start->data_rate); 991 992 mwifiex_dbg(adapter, INFO, "info: ADHOC_S_CMD: AD-HOC Start command is ready\n"); 993 994 if (IS_SUPPORT_MULTI_BANDS(adapter)) { 995 /* Append a channel TLV */ 996 chan_tlv = (struct mwifiex_ie_types_chan_list_param_set *) pos; 997 chan_tlv->header.type = cpu_to_le16(TLV_TYPE_CHANLIST); 998 chan_tlv->header.len = 999 cpu_to_le16(sizeof(struct mwifiex_chan_scan_param_set)); 1000 1001 memset(chan_tlv->chan_scan_param, 0x00, 1002 sizeof(struct mwifiex_chan_scan_param_set)); 1003 chan_tlv->chan_scan_param[0].chan_number = 1004 (u8) priv->curr_bss_params.bss_descriptor.channel; 1005 1006 mwifiex_dbg(adapter, INFO, "info: ADHOC_S_CMD: TLV Chan = %d\n", 1007 chan_tlv->chan_scan_param[0].chan_number); 1008 1009 chan_tlv->chan_scan_param[0].radio_type 1010 = mwifiex_band_to_radio_type(priv->curr_bss_params.band); 1011 if (adapter->adhoc_start_band & BAND_GN || 1012 adapter->adhoc_start_band & BAND_AN) { 1013 if (adapter->sec_chan_offset == 1014 IEEE80211_HT_PARAM_CHA_SEC_ABOVE) 1015 chan_tlv->chan_scan_param[0].radio_type |= 1016 (IEEE80211_HT_PARAM_CHA_SEC_ABOVE << 4); 1017 else if (adapter->sec_chan_offset == 1018 IEEE80211_HT_PARAM_CHA_SEC_BELOW) 1019 chan_tlv->chan_scan_param[0].radio_type |= 1020 (IEEE80211_HT_PARAM_CHA_SEC_BELOW << 4); 1021 } 1022 mwifiex_dbg(adapter, INFO, "info: ADHOC_S_CMD: TLV Band = %d\n", 1023 chan_tlv->chan_scan_param[0].radio_type); 1024 pos += sizeof(chan_tlv->header) + 1025 sizeof(struct mwifiex_chan_scan_param_set); 1026 cmd_append_size += 1027 sizeof(chan_tlv->header) + 1028 sizeof(struct mwifiex_chan_scan_param_set); 1029 } 1030 1031 /* Append vendor specific IE TLV */ 1032 cmd_append_size += mwifiex_cmd_append_vsie_tlv(priv, 1033 MWIFIEX_VSIE_MASK_ADHOC, &pos); 1034 1035 if (priv->sec_info.wpa_enabled) { 1036 rsn_ie_len = mwifiex_append_rsn_ie_wpa_wpa2(priv, &pos); 1037 if (rsn_ie_len == -1) 1038 return -1; 1039 cmd_append_size += rsn_ie_len; 1040 } 1041 1042 if (adapter->adhoc_11n_enabled) { 1043 /* Fill HT CAPABILITY */ 1044 ht_cap = (struct mwifiex_ie_types_htcap *) pos; 1045 memset(ht_cap, 0, sizeof(struct mwifiex_ie_types_htcap)); 1046 ht_cap->header.type = cpu_to_le16(WLAN_EID_HT_CAPABILITY); 1047 ht_cap->header.len = 1048 cpu_to_le16(sizeof(struct ieee80211_ht_cap)); 1049 radio_type = mwifiex_band_to_radio_type( 1050 priv->adapter->config_bands); 1051 mwifiex_fill_cap_info(priv, radio_type, &ht_cap->ht_cap); 1052 1053 if (adapter->sec_chan_offset == 1054 IEEE80211_HT_PARAM_CHA_SEC_NONE) { 1055 u16 tmp_ht_cap; 1056 1057 tmp_ht_cap = le16_to_cpu(ht_cap->ht_cap.cap_info); 1058 tmp_ht_cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40; 1059 tmp_ht_cap &= ~IEEE80211_HT_CAP_SGI_40; 1060 ht_cap->ht_cap.cap_info = cpu_to_le16(tmp_ht_cap); 1061 } 1062 1063 pos += sizeof(struct mwifiex_ie_types_htcap); 1064 cmd_append_size += sizeof(struct mwifiex_ie_types_htcap); 1065 1066 /* Fill HT INFORMATION */ 1067 ht_info = (struct mwifiex_ie_types_htinfo *) pos; 1068 memset(ht_info, 0, sizeof(struct mwifiex_ie_types_htinfo)); 1069 ht_info->header.type = cpu_to_le16(WLAN_EID_HT_OPERATION); 1070 ht_info->header.len = 1071 cpu_to_le16(sizeof(struct ieee80211_ht_operation)); 1072 1073 ht_info->ht_oper.primary_chan = 1074 (u8) priv->curr_bss_params.bss_descriptor.channel; 1075 if (adapter->sec_chan_offset) { 1076 ht_info->ht_oper.ht_param = adapter->sec_chan_offset; 1077 ht_info->ht_oper.ht_param |= 1078 IEEE80211_HT_PARAM_CHAN_WIDTH_ANY; 1079 } 1080 ht_info->ht_oper.operation_mode = 1081 cpu_to_le16(IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT); 1082 ht_info->ht_oper.basic_set[0] = 0xff; 1083 pos += sizeof(struct mwifiex_ie_types_htinfo); 1084 cmd_append_size += 1085 sizeof(struct mwifiex_ie_types_htinfo); 1086 } 1087 1088 cmd->size = 1089 cpu_to_le16((u16)(sizeof(struct host_cmd_ds_802_11_ad_hoc_start) 1090 + S_DS_GEN + cmd_append_size)); 1091 1092 if (adapter->adhoc_start_band == BAND_B) 1093 tmp_cap &= ~WLAN_CAPABILITY_SHORT_SLOT_TIME; 1094 else 1095 tmp_cap |= WLAN_CAPABILITY_SHORT_SLOT_TIME; 1096 1097 adhoc_start->cap_info_bitmap = cpu_to_le16(tmp_cap); 1098 1099 return 0; 1100 } 1101 1102 /* 1103 * This function prepares command for ad-hoc join. 1104 * 1105 * Most of the parameters are set up by copying from the target BSS descriptor 1106 * from the scan response. 1107 * 1108 * In addition, the following TLVs are added - 1109 * - Channel TLV 1110 * - Vendor specific IE 1111 * - WPA/WPA2 IE 1112 * - 11n IE 1113 * 1114 * Preparation also includes - 1115 * - Setting command ID and proper size 1116 * - Ensuring correct endian-ness 1117 */ 1118 int 1119 mwifiex_cmd_802_11_ad_hoc_join(struct mwifiex_private *priv, 1120 struct host_cmd_ds_command *cmd, 1121 struct mwifiex_bssdescriptor *bss_desc) 1122 { 1123 int rsn_ie_len = 0; 1124 struct host_cmd_ds_802_11_ad_hoc_join *adhoc_join = 1125 &cmd->params.adhoc_join; 1126 struct mwifiex_ie_types_chan_list_param_set *chan_tlv; 1127 u32 cmd_append_size = 0; 1128 u16 tmp_cap; 1129 u32 i, rates_size = 0; 1130 u16 curr_pkt_filter; 1131 u8 *pos = 1132 (u8 *) adhoc_join + 1133 sizeof(struct host_cmd_ds_802_11_ad_hoc_join); 1134 1135 /* Use G protection */ 1136 #define USE_G_PROTECTION 0x02 1137 if (bss_desc->erp_flags & USE_G_PROTECTION) { 1138 curr_pkt_filter = 1139 priv-> 1140 curr_pkt_filter | HostCmd_ACT_MAC_ADHOC_G_PROTECTION_ON; 1141 1142 if (mwifiex_send_cmd(priv, HostCmd_CMD_MAC_CONTROL, 1143 HostCmd_ACT_GEN_SET, 0, 1144 &curr_pkt_filter, false)) { 1145 mwifiex_dbg(priv->adapter, ERROR, 1146 "ADHOC_J_CMD: G Protection config failed\n"); 1147 return -1; 1148 } 1149 } 1150 1151 priv->attempted_bss_desc = bss_desc; 1152 1153 cmd->command = cpu_to_le16(HostCmd_CMD_802_11_AD_HOC_JOIN); 1154 1155 adhoc_join->bss_descriptor.bss_mode = HostCmd_BSS_MODE_IBSS; 1156 1157 adhoc_join->bss_descriptor.beacon_period 1158 = cpu_to_le16(bss_desc->beacon_period); 1159 1160 memcpy(&adhoc_join->bss_descriptor.bssid, 1161 &bss_desc->mac_address, ETH_ALEN); 1162 1163 memcpy(&adhoc_join->bss_descriptor.ssid, 1164 &bss_desc->ssid.ssid, bss_desc->ssid.ssid_len); 1165 1166 memcpy(&adhoc_join->bss_descriptor.phy_param_set, 1167 &bss_desc->phy_param_set, 1168 sizeof(union ieee_types_phy_param_set)); 1169 1170 memcpy(&adhoc_join->bss_descriptor.ss_param_set, 1171 &bss_desc->ss_param_set, sizeof(union ieee_types_ss_param_set)); 1172 1173 tmp_cap = bss_desc->cap_info_bitmap; 1174 1175 tmp_cap &= CAPINFO_MASK; 1176 1177 mwifiex_dbg(priv->adapter, INFO, 1178 "info: ADHOC_J_CMD: tmp_cap=%4X CAPINFO_MASK=%4lX\n", 1179 tmp_cap, CAPINFO_MASK); 1180 1181 /* Information on BSSID descriptor passed to FW */ 1182 mwifiex_dbg(priv->adapter, INFO, 1183 "info: ADHOC_J_CMD: BSSID=%pM, SSID='%s'\n", 1184 adhoc_join->bss_descriptor.bssid, 1185 adhoc_join->bss_descriptor.ssid); 1186 1187 for (i = 0; i < MWIFIEX_SUPPORTED_RATES && 1188 bss_desc->supported_rates[i]; i++) 1189 ; 1190 rates_size = i; 1191 1192 /* Copy Data Rates from the Rates recorded in scan response */ 1193 memset(adhoc_join->bss_descriptor.data_rates, 0, 1194 sizeof(adhoc_join->bss_descriptor.data_rates)); 1195 memcpy(adhoc_join->bss_descriptor.data_rates, 1196 bss_desc->supported_rates, rates_size); 1197 1198 /* Copy the adhoc join rates into Current BSS state structure */ 1199 priv->curr_bss_params.num_of_rates = rates_size; 1200 memcpy(&priv->curr_bss_params.data_rates, bss_desc->supported_rates, 1201 rates_size); 1202 1203 /* Copy the channel information */ 1204 priv->curr_bss_params.bss_descriptor.channel = bss_desc->channel; 1205 priv->curr_bss_params.band = (u8) bss_desc->bss_band; 1206 1207 if (priv->sec_info.wep_enabled || priv->sec_info.wpa_enabled) 1208 tmp_cap |= WLAN_CAPABILITY_PRIVACY; 1209 1210 if (IS_SUPPORT_MULTI_BANDS(priv->adapter)) { 1211 /* Append a channel TLV */ 1212 chan_tlv = (struct mwifiex_ie_types_chan_list_param_set *) pos; 1213 chan_tlv->header.type = cpu_to_le16(TLV_TYPE_CHANLIST); 1214 chan_tlv->header.len = 1215 cpu_to_le16(sizeof(struct mwifiex_chan_scan_param_set)); 1216 1217 memset(chan_tlv->chan_scan_param, 0x00, 1218 sizeof(struct mwifiex_chan_scan_param_set)); 1219 chan_tlv->chan_scan_param[0].chan_number = 1220 (bss_desc->phy_param_set.ds_param_set.current_chan); 1221 mwifiex_dbg(priv->adapter, INFO, "info: ADHOC_J_CMD: TLV Chan=%d\n", 1222 chan_tlv->chan_scan_param[0].chan_number); 1223 1224 chan_tlv->chan_scan_param[0].radio_type = 1225 mwifiex_band_to_radio_type((u8) bss_desc->bss_band); 1226 1227 mwifiex_dbg(priv->adapter, INFO, "info: ADHOC_J_CMD: TLV Band=%d\n", 1228 chan_tlv->chan_scan_param[0].radio_type); 1229 pos += sizeof(chan_tlv->header) + 1230 sizeof(struct mwifiex_chan_scan_param_set); 1231 cmd_append_size += sizeof(chan_tlv->header) + 1232 sizeof(struct mwifiex_chan_scan_param_set); 1233 } 1234 1235 if (priv->sec_info.wpa_enabled) 1236 rsn_ie_len = mwifiex_append_rsn_ie_wpa_wpa2(priv, &pos); 1237 if (rsn_ie_len == -1) 1238 return -1; 1239 cmd_append_size += rsn_ie_len; 1240 1241 if (ISSUPP_11NENABLED(priv->adapter->fw_cap_info)) 1242 cmd_append_size += mwifiex_cmd_append_11n_tlv(priv, 1243 bss_desc, &pos); 1244 1245 /* Append vendor specific IE TLV */ 1246 cmd_append_size += mwifiex_cmd_append_vsie_tlv(priv, 1247 MWIFIEX_VSIE_MASK_ADHOC, &pos); 1248 1249 cmd->size = cpu_to_le16 1250 ((u16) (sizeof(struct host_cmd_ds_802_11_ad_hoc_join) 1251 + S_DS_GEN + cmd_append_size)); 1252 1253 adhoc_join->bss_descriptor.cap_info_bitmap = cpu_to_le16(tmp_cap); 1254 1255 return 0; 1256 } 1257 1258 /* 1259 * This function handles the command response of ad-hoc start and 1260 * ad-hoc join. 1261 * 1262 * The function generates a device-connected event to notify 1263 * the applications, in case of successful ad-hoc start/join, and 1264 * saves the beacon buffer. 1265 */ 1266 int mwifiex_ret_802_11_ad_hoc(struct mwifiex_private *priv, 1267 struct host_cmd_ds_command *resp) 1268 { 1269 int ret = 0; 1270 struct mwifiex_adapter *adapter = priv->adapter; 1271 struct host_cmd_ds_802_11_ad_hoc_start_result *start_result = 1272 &resp->params.start_result; 1273 struct host_cmd_ds_802_11_ad_hoc_join_result *join_result = 1274 &resp->params.join_result; 1275 struct mwifiex_bssdescriptor *bss_desc; 1276 u16 cmd = le16_to_cpu(resp->command); 1277 u8 result; 1278 1279 if (!priv->attempted_bss_desc) { 1280 mwifiex_dbg(priv->adapter, ERROR, 1281 "ADHOC_RESP: failed, association terminated by host\n"); 1282 goto done; 1283 } 1284 1285 if (cmd == HostCmd_CMD_802_11_AD_HOC_START) 1286 result = start_result->result; 1287 else 1288 result = join_result->result; 1289 1290 bss_desc = priv->attempted_bss_desc; 1291 1292 /* Join result code 0 --> SUCCESS */ 1293 if (result) { 1294 mwifiex_dbg(priv->adapter, ERROR, "ADHOC_RESP: failed\n"); 1295 if (priv->media_connected) 1296 mwifiex_reset_connect_state(priv, result, true); 1297 1298 memset(&priv->curr_bss_params.bss_descriptor, 1299 0x00, sizeof(struct mwifiex_bssdescriptor)); 1300 1301 ret = -1; 1302 goto done; 1303 } 1304 1305 /* Send a Media Connected event, according to the Spec */ 1306 priv->media_connected = true; 1307 1308 if (le16_to_cpu(resp->command) == HostCmd_CMD_802_11_AD_HOC_START) { 1309 mwifiex_dbg(priv->adapter, INFO, "info: ADHOC_S_RESP %s\n", 1310 bss_desc->ssid.ssid); 1311 1312 /* Update the created network descriptor with the new BSSID */ 1313 memcpy(bss_desc->mac_address, 1314 start_result->bssid, ETH_ALEN); 1315 1316 priv->adhoc_state = ADHOC_STARTED; 1317 } else { 1318 /* 1319 * Now the join cmd should be successful. 1320 * If BSSID has changed use SSID to compare instead of BSSID 1321 */ 1322 mwifiex_dbg(priv->adapter, INFO, 1323 "info: ADHOC_J_RESP %s\n", 1324 bss_desc->ssid.ssid); 1325 1326 /* 1327 * Make a copy of current BSSID descriptor, only needed for 1328 * join since the current descriptor is already being used 1329 * for adhoc start 1330 */ 1331 memcpy(&priv->curr_bss_params.bss_descriptor, 1332 bss_desc, sizeof(struct mwifiex_bssdescriptor)); 1333 1334 priv->adhoc_state = ADHOC_JOINED; 1335 } 1336 1337 mwifiex_dbg(priv->adapter, INFO, "info: ADHOC_RESP: channel = %d\n", 1338 priv->adhoc_channel); 1339 mwifiex_dbg(priv->adapter, INFO, "info: ADHOC_RESP: BSSID = %pM\n", 1340 priv->curr_bss_params.bss_descriptor.mac_address); 1341 1342 if (!netif_carrier_ok(priv->netdev)) 1343 netif_carrier_on(priv->netdev); 1344 mwifiex_wake_up_net_dev_queue(priv->netdev, adapter); 1345 1346 mwifiex_save_curr_bcn(priv); 1347 1348 done: 1349 /* Need to indicate IOCTL complete */ 1350 if (adapter->curr_cmd->wait_q_enabled) { 1351 if (ret) 1352 adapter->cmd_wait_q.status = -1; 1353 else 1354 adapter->cmd_wait_q.status = 0; 1355 1356 } 1357 1358 return ret; 1359 } 1360 1361 /* 1362 * This function associates to a specific BSS discovered in a scan. 1363 * 1364 * It clears any past association response stored for application 1365 * retrieval and calls the command preparation routine to send the 1366 * command to firmware. 1367 */ 1368 int mwifiex_associate(struct mwifiex_private *priv, 1369 struct mwifiex_bssdescriptor *bss_desc) 1370 { 1371 /* Return error if the adapter is not STA role or table entry 1372 * is not marked as infra. 1373 */ 1374 if ((GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA) || 1375 (bss_desc->bss_mode != NL80211_IFTYPE_STATION)) 1376 return -1; 1377 1378 if (ISSUPP_11ACENABLED(priv->adapter->fw_cap_info) && 1379 !bss_desc->disable_11n && !bss_desc->disable_11ac && 1380 priv->adapter->config_bands & BAND_AAC) 1381 mwifiex_set_11ac_ba_params(priv); 1382 else 1383 mwifiex_set_ba_params(priv); 1384 1385 /* Clear any past association response stored for application 1386 retrieval */ 1387 priv->assoc_rsp_size = 0; 1388 1389 return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_ASSOCIATE, 1390 HostCmd_ACT_GEN_SET, 0, bss_desc, true); 1391 } 1392 1393 /* 1394 * This function starts an ad-hoc network. 1395 * 1396 * It calls the command preparation routine to send the command to firmware. 1397 */ 1398 int 1399 mwifiex_adhoc_start(struct mwifiex_private *priv, 1400 struct cfg80211_ssid *adhoc_ssid) 1401 { 1402 mwifiex_dbg(priv->adapter, INFO, "info: Adhoc Channel = %d\n", 1403 priv->adhoc_channel); 1404 mwifiex_dbg(priv->adapter, INFO, "info: curr_bss_params.channel = %d\n", 1405 priv->curr_bss_params.bss_descriptor.channel); 1406 mwifiex_dbg(priv->adapter, INFO, "info: curr_bss_params.band = %d\n", 1407 priv->curr_bss_params.band); 1408 1409 if (ISSUPP_11ACENABLED(priv->adapter->fw_cap_info) && 1410 priv->adapter->config_bands & BAND_AAC) 1411 mwifiex_set_11ac_ba_params(priv); 1412 else 1413 mwifiex_set_ba_params(priv); 1414 1415 return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_AD_HOC_START, 1416 HostCmd_ACT_GEN_SET, 0, adhoc_ssid, true); 1417 } 1418 1419 /* 1420 * This function joins an ad-hoc network found in a previous scan. 1421 * 1422 * It calls the command preparation routine to send the command to firmware, 1423 * if already not connected to the requested SSID. 1424 */ 1425 int mwifiex_adhoc_join(struct mwifiex_private *priv, 1426 struct mwifiex_bssdescriptor *bss_desc) 1427 { 1428 mwifiex_dbg(priv->adapter, INFO, 1429 "info: adhoc join: curr_bss ssid =%s\n", 1430 priv->curr_bss_params.bss_descriptor.ssid.ssid); 1431 mwifiex_dbg(priv->adapter, INFO, 1432 "info: adhoc join: curr_bss ssid_len =%u\n", 1433 priv->curr_bss_params.bss_descriptor.ssid.ssid_len); 1434 mwifiex_dbg(priv->adapter, INFO, "info: adhoc join: ssid =%s\n", 1435 bss_desc->ssid.ssid); 1436 mwifiex_dbg(priv->adapter, INFO, "info: adhoc join: ssid_len =%u\n", 1437 bss_desc->ssid.ssid_len); 1438 1439 /* Check if the requested SSID is already joined */ 1440 if (priv->curr_bss_params.bss_descriptor.ssid.ssid_len && 1441 !mwifiex_ssid_cmp(&bss_desc->ssid, 1442 &priv->curr_bss_params.bss_descriptor.ssid) && 1443 (priv->curr_bss_params.bss_descriptor.bss_mode == 1444 NL80211_IFTYPE_ADHOC)) { 1445 mwifiex_dbg(priv->adapter, INFO, 1446 "info: ADHOC_J_CMD: new ad-hoc SSID\t" 1447 "is the same as current; not attempting to re-join\n"); 1448 return -1; 1449 } 1450 1451 if (ISSUPP_11ACENABLED(priv->adapter->fw_cap_info) && 1452 !bss_desc->disable_11n && !bss_desc->disable_11ac && 1453 priv->adapter->config_bands & BAND_AAC) 1454 mwifiex_set_11ac_ba_params(priv); 1455 else 1456 mwifiex_set_ba_params(priv); 1457 1458 mwifiex_dbg(priv->adapter, INFO, 1459 "info: curr_bss_params.channel = %d\n", 1460 priv->curr_bss_params.bss_descriptor.channel); 1461 mwifiex_dbg(priv->adapter, INFO, 1462 "info: curr_bss_params.band = %c\n", 1463 priv->curr_bss_params.band); 1464 1465 return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_AD_HOC_JOIN, 1466 HostCmd_ACT_GEN_SET, 0, bss_desc, true); 1467 } 1468 1469 /* 1470 * This function deauthenticates/disconnects from infra network by sending 1471 * deauthentication request. 1472 */ 1473 static int mwifiex_deauthenticate_infra(struct mwifiex_private *priv, u8 *mac) 1474 { 1475 u8 mac_address[ETH_ALEN]; 1476 int ret; 1477 1478 if (!mac || is_zero_ether_addr(mac)) 1479 memcpy(mac_address, 1480 priv->curr_bss_params.bss_descriptor.mac_address, 1481 ETH_ALEN); 1482 else 1483 memcpy(mac_address, mac, ETH_ALEN); 1484 1485 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_DEAUTHENTICATE, 1486 HostCmd_ACT_GEN_SET, 0, mac_address, true); 1487 1488 return ret; 1489 } 1490 1491 /* 1492 * This function deauthenticates/disconnects from a BSS. 1493 * 1494 * In case of infra made, it sends deauthentication request, and 1495 * in case of ad-hoc mode, a stop network request is sent to the firmware. 1496 * In AP mode, a command to stop bss is sent to firmware. 1497 */ 1498 int mwifiex_deauthenticate(struct mwifiex_private *priv, u8 *mac) 1499 { 1500 int ret = 0; 1501 1502 if (!priv->media_connected) 1503 return 0; 1504 1505 switch (priv->bss_mode) { 1506 case NL80211_IFTYPE_STATION: 1507 case NL80211_IFTYPE_P2P_CLIENT: 1508 ret = mwifiex_deauthenticate_infra(priv, mac); 1509 if (ret) 1510 cfg80211_disconnected(priv->netdev, 0, NULL, 0, 1511 true, GFP_KERNEL); 1512 break; 1513 case NL80211_IFTYPE_ADHOC: 1514 return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_AD_HOC_STOP, 1515 HostCmd_ACT_GEN_SET, 0, NULL, true); 1516 case NL80211_IFTYPE_AP: 1517 return mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP, 1518 HostCmd_ACT_GEN_SET, 0, NULL, true); 1519 default: 1520 break; 1521 } 1522 1523 return ret; 1524 } 1525 1526 /* This function deauthenticates/disconnects from all BSS. */ 1527 void mwifiex_deauthenticate_all(struct mwifiex_adapter *adapter) 1528 { 1529 struct mwifiex_private *priv; 1530 int i; 1531 1532 for (i = 0; i < adapter->priv_num; i++) { 1533 priv = adapter->priv[i]; 1534 if (priv) 1535 mwifiex_deauthenticate(priv, NULL); 1536 } 1537 } 1538 EXPORT_SYMBOL_GPL(mwifiex_deauthenticate_all); 1539 1540 /* 1541 * This function converts band to radio type used in channel TLV. 1542 */ 1543 u8 1544 mwifiex_band_to_radio_type(u8 band) 1545 { 1546 switch (band) { 1547 case BAND_A: 1548 case BAND_AN: 1549 case BAND_A | BAND_AN: 1550 case BAND_A | BAND_AN | BAND_AAC: 1551 return HostCmd_SCAN_RADIO_TYPE_A; 1552 case BAND_B: 1553 case BAND_G: 1554 case BAND_B | BAND_G: 1555 default: 1556 return HostCmd_SCAN_RADIO_TYPE_BG; 1557 } 1558 } 1559