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_PASSTHROUGH); 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 assoc_rsp->a_id = cpu_to_le16(aid); 673 memcpy(priv->assoc_rsp_buf, &resp->params, priv->assoc_rsp_size); 674 675 if (status_code) { 676 priv->adapter->dbg.num_cmd_assoc_failure++; 677 mwifiex_dbg(priv->adapter, ERROR, 678 "ASSOC_RESP: failed,\t" 679 "status code=%d err=%#x a_id=%#x\n", 680 status_code, cap_info, 681 le16_to_cpu(assoc_rsp->a_id)); 682 683 mwifiex_dbg(priv->adapter, ERROR, "assoc failure: reason %s\n", 684 assoc_failure_reason_to_str(cap_info)); 685 if (cap_info == CONNECT_ERR_ASSOC_ERR_TIMEOUT) { 686 if (status_code == MWIFIEX_ASSOC_CMD_FAILURE_AUTH) { 687 ret = WLAN_STATUS_AUTH_TIMEOUT; 688 mwifiex_dbg(priv->adapter, ERROR, 689 "ASSOC_RESP: AUTH timeout\n"); 690 } else { 691 ret = WLAN_STATUS_UNSPECIFIED_FAILURE; 692 mwifiex_dbg(priv->adapter, ERROR, 693 "ASSOC_RESP: UNSPECIFIED failure\n"); 694 } 695 } else { 696 ret = status_code; 697 } 698 699 goto done; 700 } 701 702 /* Send a Media Connected event, according to the Spec */ 703 priv->media_connected = true; 704 705 priv->adapter->ps_state = PS_STATE_AWAKE; 706 priv->adapter->pps_uapsd_mode = false; 707 priv->adapter->tx_lock_flag = false; 708 709 /* Set the attempted BSSID Index to current */ 710 bss_desc = priv->attempted_bss_desc; 711 712 mwifiex_dbg(priv->adapter, INFO, "info: ASSOC_RESP: %s\n", 713 bss_desc->ssid.ssid); 714 715 /* Make a copy of current BSSID descriptor */ 716 memcpy(&priv->curr_bss_params.bss_descriptor, 717 bss_desc, sizeof(struct mwifiex_bssdescriptor)); 718 719 /* Update curr_bss_params */ 720 priv->curr_bss_params.bss_descriptor.channel 721 = bss_desc->phy_param_set.ds_param_set.current_chan; 722 723 priv->curr_bss_params.band = (u8) bss_desc->bss_band; 724 725 if (bss_desc->wmm_ie.vend_hdr.element_id == WLAN_EID_VENDOR_SPECIFIC) 726 priv->curr_bss_params.wmm_enabled = true; 727 else 728 priv->curr_bss_params.wmm_enabled = false; 729 730 if ((priv->wmm_required || bss_desc->bcn_ht_cap) && 731 priv->curr_bss_params.wmm_enabled) 732 priv->wmm_enabled = true; 733 else 734 priv->wmm_enabled = false; 735 736 priv->curr_bss_params.wmm_uapsd_enabled = false; 737 738 if (priv->wmm_enabled) 739 priv->curr_bss_params.wmm_uapsd_enabled 740 = ((bss_desc->wmm_ie.qos_info_bitmap & 741 IEEE80211_WMM_IE_AP_QOSINFO_UAPSD) ? 1 : 0); 742 743 /* Store the bandwidth information from assoc response */ 744 ie_ptr = cfg80211_find_ie(WLAN_EID_HT_OPERATION, assoc_rsp->ie_buffer, 745 priv->assoc_rsp_size 746 - sizeof(struct ieee_types_assoc_rsp)); 747 if (ie_ptr) { 748 assoc_resp_ht_oper = (struct ieee80211_ht_operation *)(ie_ptr 749 + sizeof(struct ieee_types_header)); 750 priv->assoc_resp_ht_param = assoc_resp_ht_oper->ht_param; 751 priv->ht_param_present = true; 752 } else { 753 priv->ht_param_present = false; 754 } 755 756 mwifiex_dbg(priv->adapter, INFO, 757 "info: ASSOC_RESP: curr_pkt_filter is %#x\n", 758 priv->curr_pkt_filter); 759 if (priv->sec_info.wpa_enabled || priv->sec_info.wpa2_enabled) 760 priv->wpa_is_gtk_set = false; 761 762 if (priv->wmm_enabled) { 763 /* Don't re-enable carrier until we get the WMM_GET_STATUS 764 event */ 765 enable_data = false; 766 } else { 767 /* Since WMM is not enabled, setup the queues with the 768 defaults */ 769 mwifiex_wmm_setup_queue_priorities(priv, NULL); 770 mwifiex_wmm_setup_ac_downgrade(priv); 771 } 772 773 if (enable_data) 774 mwifiex_dbg(priv->adapter, INFO, 775 "info: post association, re-enabling data flow\n"); 776 777 /* Reset SNR/NF/RSSI values */ 778 priv->data_rssi_last = 0; 779 priv->data_nf_last = 0; 780 priv->data_rssi_avg = 0; 781 priv->data_nf_avg = 0; 782 priv->bcn_rssi_last = 0; 783 priv->bcn_nf_last = 0; 784 priv->bcn_rssi_avg = 0; 785 priv->bcn_nf_avg = 0; 786 priv->rxpd_rate = 0; 787 priv->rxpd_htinfo = 0; 788 789 mwifiex_save_curr_bcn(priv); 790 791 priv->adapter->dbg.num_cmd_assoc_success++; 792 793 mwifiex_dbg(priv->adapter, INFO, "info: ASSOC_RESP: associated\n"); 794 795 /* Add the ra_list here for infra mode as there will be only 1 ra 796 always */ 797 mwifiex_ralist_add(priv, 798 priv->curr_bss_params.bss_descriptor.mac_address); 799 800 if (!netif_carrier_ok(priv->netdev)) 801 netif_carrier_on(priv->netdev); 802 mwifiex_wake_up_net_dev_queue(priv->netdev, adapter); 803 804 if (priv->sec_info.wpa_enabled || priv->sec_info.wpa2_enabled) 805 priv->scan_block = true; 806 else 807 priv->port_open = true; 808 809 done: 810 /* Need to indicate IOCTL complete */ 811 if (adapter->curr_cmd->wait_q_enabled) { 812 if (ret) 813 adapter->cmd_wait_q.status = -1; 814 else 815 adapter->cmd_wait_q.status = 0; 816 } 817 818 return ret; 819 } 820 821 /* 822 * This function prepares command for ad-hoc start. 823 * 824 * Driver will fill up SSID, BSS mode, IBSS parameters, physical 825 * parameters, probe delay, and capability information. Firmware 826 * will fill up beacon period, basic rates and operational rates. 827 * 828 * In addition, the following TLVs are added - 829 * - Channel TLV 830 * - Vendor specific IE 831 * - WPA/WPA2 IE 832 * - HT Capabilities IE 833 * - HT Information IE 834 * 835 * Preparation also includes - 836 * - Setting command ID and proper size 837 * - Ensuring correct endian-ness 838 */ 839 int 840 mwifiex_cmd_802_11_ad_hoc_start(struct mwifiex_private *priv, 841 struct host_cmd_ds_command *cmd, 842 struct cfg80211_ssid *req_ssid) 843 { 844 int rsn_ie_len = 0; 845 struct mwifiex_adapter *adapter = priv->adapter; 846 struct host_cmd_ds_802_11_ad_hoc_start *adhoc_start = 847 &cmd->params.adhoc_start; 848 struct mwifiex_bssdescriptor *bss_desc; 849 u32 cmd_append_size = 0; 850 u32 i; 851 u16 tmp_cap; 852 struct mwifiex_ie_types_chan_list_param_set *chan_tlv; 853 u8 radio_type; 854 855 struct mwifiex_ie_types_htcap *ht_cap; 856 struct mwifiex_ie_types_htinfo *ht_info; 857 u8 *pos = (u8 *) adhoc_start + 858 sizeof(struct host_cmd_ds_802_11_ad_hoc_start); 859 860 if (!adapter) 861 return -1; 862 863 cmd->command = cpu_to_le16(HostCmd_CMD_802_11_AD_HOC_START); 864 865 bss_desc = &priv->curr_bss_params.bss_descriptor; 866 priv->attempted_bss_desc = bss_desc; 867 868 /* 869 * Fill in the parameters for 2 data structures: 870 * 1. struct host_cmd_ds_802_11_ad_hoc_start command 871 * 2. bss_desc 872 * Driver will fill up SSID, bss_mode,IBSS param, Physical Param, 873 * probe delay, and Cap info. 874 * Firmware will fill up beacon period, Basic rates 875 * and operational rates. 876 */ 877 878 memset(adhoc_start->ssid, 0, IEEE80211_MAX_SSID_LEN); 879 880 memcpy(adhoc_start->ssid, req_ssid->ssid, req_ssid->ssid_len); 881 882 mwifiex_dbg(adapter, INFO, "info: ADHOC_S_CMD: SSID = %s\n", 883 adhoc_start->ssid); 884 885 memset(bss_desc->ssid.ssid, 0, IEEE80211_MAX_SSID_LEN); 886 memcpy(bss_desc->ssid.ssid, req_ssid->ssid, req_ssid->ssid_len); 887 888 bss_desc->ssid.ssid_len = req_ssid->ssid_len; 889 890 /* Set the BSS mode */ 891 adhoc_start->bss_mode = HostCmd_BSS_MODE_IBSS; 892 bss_desc->bss_mode = NL80211_IFTYPE_ADHOC; 893 adhoc_start->beacon_period = cpu_to_le16(priv->beacon_period); 894 bss_desc->beacon_period = priv->beacon_period; 895 896 /* Set Physical param set */ 897 /* Parameter IE Id */ 898 #define DS_PARA_IE_ID 3 899 /* Parameter IE length */ 900 #define DS_PARA_IE_LEN 1 901 902 adhoc_start->phy_param_set.ds_param_set.element_id = DS_PARA_IE_ID; 903 adhoc_start->phy_param_set.ds_param_set.len = DS_PARA_IE_LEN; 904 905 if (!mwifiex_get_cfp(priv, adapter->adhoc_start_band, 906 (u16) priv->adhoc_channel, 0)) { 907 struct mwifiex_chan_freq_power *cfp; 908 cfp = mwifiex_get_cfp(priv, adapter->adhoc_start_band, 909 FIRST_VALID_CHANNEL, 0); 910 if (cfp) 911 priv->adhoc_channel = (u8) cfp->channel; 912 } 913 914 if (!priv->adhoc_channel) { 915 mwifiex_dbg(adapter, ERROR, 916 "ADHOC_S_CMD: adhoc_channel cannot be 0\n"); 917 return -1; 918 } 919 920 mwifiex_dbg(adapter, INFO, 921 "info: ADHOC_S_CMD: creating ADHOC on channel %d\n", 922 priv->adhoc_channel); 923 924 priv->curr_bss_params.bss_descriptor.channel = priv->adhoc_channel; 925 priv->curr_bss_params.band = adapter->adhoc_start_band; 926 927 bss_desc->channel = priv->adhoc_channel; 928 adhoc_start->phy_param_set.ds_param_set.current_chan = 929 priv->adhoc_channel; 930 931 memcpy(&bss_desc->phy_param_set, &adhoc_start->phy_param_set, 932 sizeof(union ieee_types_phy_param_set)); 933 934 /* Set IBSS param set */ 935 /* IBSS parameter IE Id */ 936 #define IBSS_PARA_IE_ID 6 937 /* IBSS parameter IE length */ 938 #define IBSS_PARA_IE_LEN 2 939 940 adhoc_start->ss_param_set.ibss_param_set.element_id = IBSS_PARA_IE_ID; 941 adhoc_start->ss_param_set.ibss_param_set.len = IBSS_PARA_IE_LEN; 942 adhoc_start->ss_param_set.ibss_param_set.atim_window 943 = cpu_to_le16(priv->atim_window); 944 memcpy(&bss_desc->ss_param_set, &adhoc_start->ss_param_set, 945 sizeof(union ieee_types_ss_param_set)); 946 947 /* Set Capability info */ 948 bss_desc->cap_info_bitmap |= WLAN_CAPABILITY_IBSS; 949 tmp_cap = WLAN_CAPABILITY_IBSS; 950 951 /* Set up privacy in bss_desc */ 952 if (priv->sec_info.encryption_mode) { 953 /* Ad-Hoc capability privacy on */ 954 mwifiex_dbg(adapter, INFO, 955 "info: ADHOC_S_CMD: wep_status set privacy to WEP\n"); 956 bss_desc->privacy = MWIFIEX_802_11_PRIV_FILTER_8021X_WEP; 957 tmp_cap |= WLAN_CAPABILITY_PRIVACY; 958 } else { 959 mwifiex_dbg(adapter, INFO, 960 "info: ADHOC_S_CMD: wep_status NOT set,\t" 961 "setting privacy to ACCEPT ALL\n"); 962 bss_desc->privacy = MWIFIEX_802_11_PRIV_FILTER_ACCEPT_ALL; 963 } 964 965 memset(adhoc_start->data_rate, 0, sizeof(adhoc_start->data_rate)); 966 mwifiex_get_active_data_rates(priv, adhoc_start->data_rate); 967 if ((adapter->adhoc_start_band & BAND_G) && 968 (priv->curr_pkt_filter & HostCmd_ACT_MAC_ADHOC_G_PROTECTION_ON)) { 969 if (mwifiex_send_cmd(priv, HostCmd_CMD_MAC_CONTROL, 970 HostCmd_ACT_GEN_SET, 0, 971 &priv->curr_pkt_filter, false)) { 972 mwifiex_dbg(adapter, ERROR, 973 "ADHOC_S_CMD: G Protection config failed\n"); 974 return -1; 975 } 976 } 977 /* Find the last non zero */ 978 for (i = 0; i < sizeof(adhoc_start->data_rate); i++) 979 if (!adhoc_start->data_rate[i]) 980 break; 981 982 priv->curr_bss_params.num_of_rates = i; 983 984 /* Copy the ad-hoc creating rates into Current BSS rate structure */ 985 memcpy(&priv->curr_bss_params.data_rates, 986 &adhoc_start->data_rate, priv->curr_bss_params.num_of_rates); 987 988 mwifiex_dbg(adapter, INFO, "info: ADHOC_S_CMD: rates=%4ph\n", 989 adhoc_start->data_rate); 990 991 mwifiex_dbg(adapter, INFO, "info: ADHOC_S_CMD: AD-HOC Start command is ready\n"); 992 993 if (IS_SUPPORT_MULTI_BANDS(adapter)) { 994 /* Append a channel TLV */ 995 chan_tlv = (struct mwifiex_ie_types_chan_list_param_set *) pos; 996 chan_tlv->header.type = cpu_to_le16(TLV_TYPE_CHANLIST); 997 chan_tlv->header.len = 998 cpu_to_le16(sizeof(struct mwifiex_chan_scan_param_set)); 999 1000 memset(chan_tlv->chan_scan_param, 0x00, 1001 sizeof(struct mwifiex_chan_scan_param_set)); 1002 chan_tlv->chan_scan_param[0].chan_number = 1003 (u8) priv->curr_bss_params.bss_descriptor.channel; 1004 1005 mwifiex_dbg(adapter, INFO, "info: ADHOC_S_CMD: TLV Chan = %d\n", 1006 chan_tlv->chan_scan_param[0].chan_number); 1007 1008 chan_tlv->chan_scan_param[0].radio_type 1009 = mwifiex_band_to_radio_type(priv->curr_bss_params.band); 1010 if (adapter->adhoc_start_band & BAND_GN || 1011 adapter->adhoc_start_band & BAND_AN) { 1012 if (adapter->sec_chan_offset == 1013 IEEE80211_HT_PARAM_CHA_SEC_ABOVE) 1014 chan_tlv->chan_scan_param[0].radio_type |= 1015 (IEEE80211_HT_PARAM_CHA_SEC_ABOVE << 4); 1016 else if (adapter->sec_chan_offset == 1017 IEEE80211_HT_PARAM_CHA_SEC_BELOW) 1018 chan_tlv->chan_scan_param[0].radio_type |= 1019 (IEEE80211_HT_PARAM_CHA_SEC_BELOW << 4); 1020 } 1021 mwifiex_dbg(adapter, INFO, "info: ADHOC_S_CMD: TLV Band = %d\n", 1022 chan_tlv->chan_scan_param[0].radio_type); 1023 pos += sizeof(chan_tlv->header) + 1024 sizeof(struct mwifiex_chan_scan_param_set); 1025 cmd_append_size += 1026 sizeof(chan_tlv->header) + 1027 sizeof(struct mwifiex_chan_scan_param_set); 1028 } 1029 1030 /* Append vendor specific IE TLV */ 1031 cmd_append_size += mwifiex_cmd_append_vsie_tlv(priv, 1032 MWIFIEX_VSIE_MASK_ADHOC, &pos); 1033 1034 if (priv->sec_info.wpa_enabled) { 1035 rsn_ie_len = mwifiex_append_rsn_ie_wpa_wpa2(priv, &pos); 1036 if (rsn_ie_len == -1) 1037 return -1; 1038 cmd_append_size += rsn_ie_len; 1039 } 1040 1041 if (adapter->adhoc_11n_enabled) { 1042 /* Fill HT CAPABILITY */ 1043 ht_cap = (struct mwifiex_ie_types_htcap *) pos; 1044 memset(ht_cap, 0, sizeof(struct mwifiex_ie_types_htcap)); 1045 ht_cap->header.type = cpu_to_le16(WLAN_EID_HT_CAPABILITY); 1046 ht_cap->header.len = 1047 cpu_to_le16(sizeof(struct ieee80211_ht_cap)); 1048 radio_type = mwifiex_band_to_radio_type( 1049 priv->adapter->config_bands); 1050 mwifiex_fill_cap_info(priv, radio_type, &ht_cap->ht_cap); 1051 1052 if (adapter->sec_chan_offset == 1053 IEEE80211_HT_PARAM_CHA_SEC_NONE) { 1054 u16 tmp_ht_cap; 1055 1056 tmp_ht_cap = le16_to_cpu(ht_cap->ht_cap.cap_info); 1057 tmp_ht_cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40; 1058 tmp_ht_cap &= ~IEEE80211_HT_CAP_SGI_40; 1059 ht_cap->ht_cap.cap_info = cpu_to_le16(tmp_ht_cap); 1060 } 1061 1062 pos += sizeof(struct mwifiex_ie_types_htcap); 1063 cmd_append_size += sizeof(struct mwifiex_ie_types_htcap); 1064 1065 /* Fill HT INFORMATION */ 1066 ht_info = (struct mwifiex_ie_types_htinfo *) pos; 1067 memset(ht_info, 0, sizeof(struct mwifiex_ie_types_htinfo)); 1068 ht_info->header.type = cpu_to_le16(WLAN_EID_HT_OPERATION); 1069 ht_info->header.len = 1070 cpu_to_le16(sizeof(struct ieee80211_ht_operation)); 1071 1072 ht_info->ht_oper.primary_chan = 1073 (u8) priv->curr_bss_params.bss_descriptor.channel; 1074 if (adapter->sec_chan_offset) { 1075 ht_info->ht_oper.ht_param = adapter->sec_chan_offset; 1076 ht_info->ht_oper.ht_param |= 1077 IEEE80211_HT_PARAM_CHAN_WIDTH_ANY; 1078 } 1079 ht_info->ht_oper.operation_mode = 1080 cpu_to_le16(IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT); 1081 ht_info->ht_oper.basic_set[0] = 0xff; 1082 pos += sizeof(struct mwifiex_ie_types_htinfo); 1083 cmd_append_size += 1084 sizeof(struct mwifiex_ie_types_htinfo); 1085 } 1086 1087 cmd->size = 1088 cpu_to_le16((u16)(sizeof(struct host_cmd_ds_802_11_ad_hoc_start) 1089 + S_DS_GEN + cmd_append_size)); 1090 1091 if (adapter->adhoc_start_band == BAND_B) 1092 tmp_cap &= ~WLAN_CAPABILITY_SHORT_SLOT_TIME; 1093 else 1094 tmp_cap |= WLAN_CAPABILITY_SHORT_SLOT_TIME; 1095 1096 adhoc_start->cap_info_bitmap = cpu_to_le16(tmp_cap); 1097 1098 return 0; 1099 } 1100 1101 /* 1102 * This function prepares command for ad-hoc join. 1103 * 1104 * Most of the parameters are set up by copying from the target BSS descriptor 1105 * from the scan response. 1106 * 1107 * In addition, the following TLVs are added - 1108 * - Channel TLV 1109 * - Vendor specific IE 1110 * - WPA/WPA2 IE 1111 * - 11n IE 1112 * 1113 * Preparation also includes - 1114 * - Setting command ID and proper size 1115 * - Ensuring correct endian-ness 1116 */ 1117 int 1118 mwifiex_cmd_802_11_ad_hoc_join(struct mwifiex_private *priv, 1119 struct host_cmd_ds_command *cmd, 1120 struct mwifiex_bssdescriptor *bss_desc) 1121 { 1122 int rsn_ie_len = 0; 1123 struct host_cmd_ds_802_11_ad_hoc_join *adhoc_join = 1124 &cmd->params.adhoc_join; 1125 struct mwifiex_ie_types_chan_list_param_set *chan_tlv; 1126 u32 cmd_append_size = 0; 1127 u16 tmp_cap; 1128 u32 i, rates_size = 0; 1129 u16 curr_pkt_filter; 1130 u8 *pos = 1131 (u8 *) adhoc_join + 1132 sizeof(struct host_cmd_ds_802_11_ad_hoc_join); 1133 1134 /* Use G protection */ 1135 #define USE_G_PROTECTION 0x02 1136 if (bss_desc->erp_flags & USE_G_PROTECTION) { 1137 curr_pkt_filter = 1138 priv-> 1139 curr_pkt_filter | HostCmd_ACT_MAC_ADHOC_G_PROTECTION_ON; 1140 1141 if (mwifiex_send_cmd(priv, HostCmd_CMD_MAC_CONTROL, 1142 HostCmd_ACT_GEN_SET, 0, 1143 &curr_pkt_filter, false)) { 1144 mwifiex_dbg(priv->adapter, ERROR, 1145 "ADHOC_J_CMD: G Protection config failed\n"); 1146 return -1; 1147 } 1148 } 1149 1150 priv->attempted_bss_desc = bss_desc; 1151 1152 cmd->command = cpu_to_le16(HostCmd_CMD_802_11_AD_HOC_JOIN); 1153 1154 adhoc_join->bss_descriptor.bss_mode = HostCmd_BSS_MODE_IBSS; 1155 1156 adhoc_join->bss_descriptor.beacon_period 1157 = cpu_to_le16(bss_desc->beacon_period); 1158 1159 memcpy(&adhoc_join->bss_descriptor.bssid, 1160 &bss_desc->mac_address, ETH_ALEN); 1161 1162 memcpy(&adhoc_join->bss_descriptor.ssid, 1163 &bss_desc->ssid.ssid, bss_desc->ssid.ssid_len); 1164 1165 memcpy(&adhoc_join->bss_descriptor.phy_param_set, 1166 &bss_desc->phy_param_set, 1167 sizeof(union ieee_types_phy_param_set)); 1168 1169 memcpy(&adhoc_join->bss_descriptor.ss_param_set, 1170 &bss_desc->ss_param_set, sizeof(union ieee_types_ss_param_set)); 1171 1172 tmp_cap = bss_desc->cap_info_bitmap; 1173 1174 tmp_cap &= CAPINFO_MASK; 1175 1176 mwifiex_dbg(priv->adapter, INFO, 1177 "info: ADHOC_J_CMD: tmp_cap=%4X CAPINFO_MASK=%4lX\n", 1178 tmp_cap, CAPINFO_MASK); 1179 1180 /* Information on BSSID descriptor passed to FW */ 1181 mwifiex_dbg(priv->adapter, INFO, 1182 "info: ADHOC_J_CMD: BSSID=%pM, SSID='%s'\n", 1183 adhoc_join->bss_descriptor.bssid, 1184 adhoc_join->bss_descriptor.ssid); 1185 1186 for (i = 0; i < MWIFIEX_SUPPORTED_RATES && 1187 bss_desc->supported_rates[i]; i++) 1188 ; 1189 rates_size = i; 1190 1191 /* Copy Data Rates from the Rates recorded in scan response */ 1192 memset(adhoc_join->bss_descriptor.data_rates, 0, 1193 sizeof(adhoc_join->bss_descriptor.data_rates)); 1194 memcpy(adhoc_join->bss_descriptor.data_rates, 1195 bss_desc->supported_rates, rates_size); 1196 1197 /* Copy the adhoc join rates into Current BSS state structure */ 1198 priv->curr_bss_params.num_of_rates = rates_size; 1199 memcpy(&priv->curr_bss_params.data_rates, bss_desc->supported_rates, 1200 rates_size); 1201 1202 /* Copy the channel information */ 1203 priv->curr_bss_params.bss_descriptor.channel = bss_desc->channel; 1204 priv->curr_bss_params.band = (u8) bss_desc->bss_band; 1205 1206 if (priv->sec_info.wep_enabled || priv->sec_info.wpa_enabled) 1207 tmp_cap |= WLAN_CAPABILITY_PRIVACY; 1208 1209 if (IS_SUPPORT_MULTI_BANDS(priv->adapter)) { 1210 /* Append a channel TLV */ 1211 chan_tlv = (struct mwifiex_ie_types_chan_list_param_set *) pos; 1212 chan_tlv->header.type = cpu_to_le16(TLV_TYPE_CHANLIST); 1213 chan_tlv->header.len = 1214 cpu_to_le16(sizeof(struct mwifiex_chan_scan_param_set)); 1215 1216 memset(chan_tlv->chan_scan_param, 0x00, 1217 sizeof(struct mwifiex_chan_scan_param_set)); 1218 chan_tlv->chan_scan_param[0].chan_number = 1219 (bss_desc->phy_param_set.ds_param_set.current_chan); 1220 mwifiex_dbg(priv->adapter, INFO, "info: ADHOC_J_CMD: TLV Chan=%d\n", 1221 chan_tlv->chan_scan_param[0].chan_number); 1222 1223 chan_tlv->chan_scan_param[0].radio_type = 1224 mwifiex_band_to_radio_type((u8) bss_desc->bss_band); 1225 1226 mwifiex_dbg(priv->adapter, INFO, "info: ADHOC_J_CMD: TLV Band=%d\n", 1227 chan_tlv->chan_scan_param[0].radio_type); 1228 pos += sizeof(chan_tlv->header) + 1229 sizeof(struct mwifiex_chan_scan_param_set); 1230 cmd_append_size += sizeof(chan_tlv->header) + 1231 sizeof(struct mwifiex_chan_scan_param_set); 1232 } 1233 1234 if (priv->sec_info.wpa_enabled) 1235 rsn_ie_len = mwifiex_append_rsn_ie_wpa_wpa2(priv, &pos); 1236 if (rsn_ie_len == -1) 1237 return -1; 1238 cmd_append_size += rsn_ie_len; 1239 1240 if (ISSUPP_11NENABLED(priv->adapter->fw_cap_info)) 1241 cmd_append_size += mwifiex_cmd_append_11n_tlv(priv, 1242 bss_desc, &pos); 1243 1244 /* Append vendor specific IE TLV */ 1245 cmd_append_size += mwifiex_cmd_append_vsie_tlv(priv, 1246 MWIFIEX_VSIE_MASK_ADHOC, &pos); 1247 1248 cmd->size = cpu_to_le16 1249 ((u16) (sizeof(struct host_cmd_ds_802_11_ad_hoc_join) 1250 + S_DS_GEN + cmd_append_size)); 1251 1252 adhoc_join->bss_descriptor.cap_info_bitmap = cpu_to_le16(tmp_cap); 1253 1254 return 0; 1255 } 1256 1257 /* 1258 * This function handles the command response of ad-hoc start and 1259 * ad-hoc join. 1260 * 1261 * The function generates a device-connected event to notify 1262 * the applications, in case of successful ad-hoc start/join, and 1263 * saves the beacon buffer. 1264 */ 1265 int mwifiex_ret_802_11_ad_hoc(struct mwifiex_private *priv, 1266 struct host_cmd_ds_command *resp) 1267 { 1268 int ret = 0; 1269 struct mwifiex_adapter *adapter = priv->adapter; 1270 struct host_cmd_ds_802_11_ad_hoc_start_result *start_result = 1271 &resp->params.start_result; 1272 struct host_cmd_ds_802_11_ad_hoc_join_result *join_result = 1273 &resp->params.join_result; 1274 struct mwifiex_bssdescriptor *bss_desc; 1275 u16 cmd = le16_to_cpu(resp->command); 1276 u8 result; 1277 1278 if (!priv->attempted_bss_desc) { 1279 mwifiex_dbg(priv->adapter, ERROR, 1280 "ADHOC_RESP: failed, association terminated by host\n"); 1281 goto done; 1282 } 1283 1284 if (cmd == HostCmd_CMD_802_11_AD_HOC_START) 1285 result = start_result->result; 1286 else 1287 result = join_result->result; 1288 1289 bss_desc = priv->attempted_bss_desc; 1290 1291 /* Join result code 0 --> SUCCESS */ 1292 if (result) { 1293 mwifiex_dbg(priv->adapter, ERROR, "ADHOC_RESP: failed\n"); 1294 if (priv->media_connected) 1295 mwifiex_reset_connect_state(priv, result, true); 1296 1297 memset(&priv->curr_bss_params.bss_descriptor, 1298 0x00, sizeof(struct mwifiex_bssdescriptor)); 1299 1300 ret = -1; 1301 goto done; 1302 } 1303 1304 /* Send a Media Connected event, according to the Spec */ 1305 priv->media_connected = true; 1306 1307 if (le16_to_cpu(resp->command) == HostCmd_CMD_802_11_AD_HOC_START) { 1308 mwifiex_dbg(priv->adapter, INFO, "info: ADHOC_S_RESP %s\n", 1309 bss_desc->ssid.ssid); 1310 1311 /* Update the created network descriptor with the new BSSID */ 1312 memcpy(bss_desc->mac_address, 1313 start_result->bssid, ETH_ALEN); 1314 1315 priv->adhoc_state = ADHOC_STARTED; 1316 } else { 1317 /* 1318 * Now the join cmd should be successful. 1319 * If BSSID has changed use SSID to compare instead of BSSID 1320 */ 1321 mwifiex_dbg(priv->adapter, INFO, 1322 "info: ADHOC_J_RESP %s\n", 1323 bss_desc->ssid.ssid); 1324 1325 /* 1326 * Make a copy of current BSSID descriptor, only needed for 1327 * join since the current descriptor is already being used 1328 * for adhoc start 1329 */ 1330 memcpy(&priv->curr_bss_params.bss_descriptor, 1331 bss_desc, sizeof(struct mwifiex_bssdescriptor)); 1332 1333 priv->adhoc_state = ADHOC_JOINED; 1334 } 1335 1336 mwifiex_dbg(priv->adapter, INFO, "info: ADHOC_RESP: channel = %d\n", 1337 priv->adhoc_channel); 1338 mwifiex_dbg(priv->adapter, INFO, "info: ADHOC_RESP: BSSID = %pM\n", 1339 priv->curr_bss_params.bss_descriptor.mac_address); 1340 1341 if (!netif_carrier_ok(priv->netdev)) 1342 netif_carrier_on(priv->netdev); 1343 mwifiex_wake_up_net_dev_queue(priv->netdev, adapter); 1344 1345 mwifiex_save_curr_bcn(priv); 1346 1347 done: 1348 /* Need to indicate IOCTL complete */ 1349 if (adapter->curr_cmd->wait_q_enabled) { 1350 if (ret) 1351 adapter->cmd_wait_q.status = -1; 1352 else 1353 adapter->cmd_wait_q.status = 0; 1354 1355 } 1356 1357 return ret; 1358 } 1359 1360 /* 1361 * This function associates to a specific BSS discovered in a scan. 1362 * 1363 * It clears any past association response stored for application 1364 * retrieval and calls the command preparation routine to send the 1365 * command to firmware. 1366 */ 1367 int mwifiex_associate(struct mwifiex_private *priv, 1368 struct mwifiex_bssdescriptor *bss_desc) 1369 { 1370 /* Return error if the adapter is not STA role or table entry 1371 * is not marked as infra. 1372 */ 1373 if ((GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA) || 1374 (bss_desc->bss_mode != NL80211_IFTYPE_STATION)) 1375 return -1; 1376 1377 if (ISSUPP_11ACENABLED(priv->adapter->fw_cap_info) && 1378 !bss_desc->disable_11n && !bss_desc->disable_11ac && 1379 priv->adapter->config_bands & BAND_AAC) 1380 mwifiex_set_11ac_ba_params(priv); 1381 else 1382 mwifiex_set_ba_params(priv); 1383 1384 /* Clear any past association response stored for application 1385 retrieval */ 1386 priv->assoc_rsp_size = 0; 1387 1388 return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_ASSOCIATE, 1389 HostCmd_ACT_GEN_SET, 0, bss_desc, true); 1390 } 1391 1392 /* 1393 * This function starts an ad-hoc network. 1394 * 1395 * It calls the command preparation routine to send the command to firmware. 1396 */ 1397 int 1398 mwifiex_adhoc_start(struct mwifiex_private *priv, 1399 struct cfg80211_ssid *adhoc_ssid) 1400 { 1401 mwifiex_dbg(priv->adapter, INFO, "info: Adhoc Channel = %d\n", 1402 priv->adhoc_channel); 1403 mwifiex_dbg(priv->adapter, INFO, "info: curr_bss_params.channel = %d\n", 1404 priv->curr_bss_params.bss_descriptor.channel); 1405 mwifiex_dbg(priv->adapter, INFO, "info: curr_bss_params.band = %d\n", 1406 priv->curr_bss_params.band); 1407 1408 if (ISSUPP_11ACENABLED(priv->adapter->fw_cap_info) && 1409 priv->adapter->config_bands & BAND_AAC) 1410 mwifiex_set_11ac_ba_params(priv); 1411 else 1412 mwifiex_set_ba_params(priv); 1413 1414 return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_AD_HOC_START, 1415 HostCmd_ACT_GEN_SET, 0, adhoc_ssid, true); 1416 } 1417 1418 /* 1419 * This function joins an ad-hoc network found in a previous scan. 1420 * 1421 * It calls the command preparation routine to send the command to firmware, 1422 * if already not connected to the requested SSID. 1423 */ 1424 int mwifiex_adhoc_join(struct mwifiex_private *priv, 1425 struct mwifiex_bssdescriptor *bss_desc) 1426 { 1427 mwifiex_dbg(priv->adapter, INFO, 1428 "info: adhoc join: curr_bss ssid =%s\n", 1429 priv->curr_bss_params.bss_descriptor.ssid.ssid); 1430 mwifiex_dbg(priv->adapter, INFO, 1431 "info: adhoc join: curr_bss ssid_len =%u\n", 1432 priv->curr_bss_params.bss_descriptor.ssid.ssid_len); 1433 mwifiex_dbg(priv->adapter, INFO, "info: adhoc join: ssid =%s\n", 1434 bss_desc->ssid.ssid); 1435 mwifiex_dbg(priv->adapter, INFO, "info: adhoc join: ssid_len =%u\n", 1436 bss_desc->ssid.ssid_len); 1437 1438 /* Check if the requested SSID is already joined */ 1439 if (priv->curr_bss_params.bss_descriptor.ssid.ssid_len && 1440 !mwifiex_ssid_cmp(&bss_desc->ssid, 1441 &priv->curr_bss_params.bss_descriptor.ssid) && 1442 (priv->curr_bss_params.bss_descriptor.bss_mode == 1443 NL80211_IFTYPE_ADHOC)) { 1444 mwifiex_dbg(priv->adapter, INFO, 1445 "info: ADHOC_J_CMD: new ad-hoc SSID\t" 1446 "is the same as current; not attempting to re-join\n"); 1447 return -1; 1448 } 1449 1450 if (ISSUPP_11ACENABLED(priv->adapter->fw_cap_info) && 1451 !bss_desc->disable_11n && !bss_desc->disable_11ac && 1452 priv->adapter->config_bands & BAND_AAC) 1453 mwifiex_set_11ac_ba_params(priv); 1454 else 1455 mwifiex_set_ba_params(priv); 1456 1457 mwifiex_dbg(priv->adapter, INFO, 1458 "info: curr_bss_params.channel = %d\n", 1459 priv->curr_bss_params.bss_descriptor.channel); 1460 mwifiex_dbg(priv->adapter, INFO, 1461 "info: curr_bss_params.band = %c\n", 1462 priv->curr_bss_params.band); 1463 1464 return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_AD_HOC_JOIN, 1465 HostCmd_ACT_GEN_SET, 0, bss_desc, true); 1466 } 1467 1468 /* 1469 * This function deauthenticates/disconnects from infra network by sending 1470 * deauthentication request. 1471 */ 1472 static int mwifiex_deauthenticate_infra(struct mwifiex_private *priv, u8 *mac) 1473 { 1474 u8 mac_address[ETH_ALEN]; 1475 int ret; 1476 1477 if (!mac || is_zero_ether_addr(mac)) 1478 memcpy(mac_address, 1479 priv->curr_bss_params.bss_descriptor.mac_address, 1480 ETH_ALEN); 1481 else 1482 memcpy(mac_address, mac, ETH_ALEN); 1483 1484 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_DEAUTHENTICATE, 1485 HostCmd_ACT_GEN_SET, 0, mac_address, true); 1486 1487 return ret; 1488 } 1489 1490 /* 1491 * This function deauthenticates/disconnects from a BSS. 1492 * 1493 * In case of infra made, it sends deauthentication request, and 1494 * in case of ad-hoc mode, a stop network request is sent to the firmware. 1495 * In AP mode, a command to stop bss is sent to firmware. 1496 */ 1497 int mwifiex_deauthenticate(struct mwifiex_private *priv, u8 *mac) 1498 { 1499 int ret = 0; 1500 1501 if (!priv->media_connected) 1502 return 0; 1503 1504 switch (priv->bss_mode) { 1505 case NL80211_IFTYPE_STATION: 1506 case NL80211_IFTYPE_P2P_CLIENT: 1507 ret = mwifiex_deauthenticate_infra(priv, mac); 1508 if (ret) 1509 cfg80211_disconnected(priv->netdev, 0, NULL, 0, 1510 true, GFP_KERNEL); 1511 break; 1512 case NL80211_IFTYPE_ADHOC: 1513 return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_AD_HOC_STOP, 1514 HostCmd_ACT_GEN_SET, 0, NULL, true); 1515 case NL80211_IFTYPE_AP: 1516 return mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP, 1517 HostCmd_ACT_GEN_SET, 0, NULL, true); 1518 default: 1519 break; 1520 } 1521 1522 return ret; 1523 } 1524 1525 /* This function deauthenticates/disconnects from all BSS. */ 1526 void mwifiex_deauthenticate_all(struct mwifiex_adapter *adapter) 1527 { 1528 struct mwifiex_private *priv; 1529 int i; 1530 1531 for (i = 0; i < adapter->priv_num; i++) { 1532 priv = adapter->priv[i]; 1533 if (priv) 1534 mwifiex_deauthenticate(priv, NULL); 1535 } 1536 } 1537 EXPORT_SYMBOL_GPL(mwifiex_deauthenticate_all); 1538 1539 /* 1540 * This function converts band to radio type used in channel TLV. 1541 */ 1542 u8 1543 mwifiex_band_to_radio_type(u8 band) 1544 { 1545 switch (band) { 1546 case BAND_A: 1547 case BAND_AN: 1548 case BAND_A | BAND_AN: 1549 case BAND_A | BAND_AN | BAND_AAC: 1550 return HostCmd_SCAN_RADIO_TYPE_A; 1551 case BAND_B: 1552 case BAND_G: 1553 case BAND_B | BAND_G: 1554 default: 1555 return HostCmd_SCAN_RADIO_TYPE_BG; 1556 } 1557 } 1558