kernel/drivers/net/wireless/mwifiex/join.c

   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
 648         assoc_rsp = (struct ieee_types_assoc_rsp *) &resp->params;
 649
 650         cap_info = le16_to_cpu(assoc_rsp->cap_info_bitmap);
 651         status_code = le16_to_cpu(assoc_rsp->status_code);
 652         aid = le16_to_cpu(assoc_rsp->a_id);
 653
 654         if ((aid & (BIT(15) | BIT(14))) != (BIT(15) | BIT(14)))
 655                 dev_err(priv->adapter->dev,
 656                         "invalid AID value 0x%x; bits 15:14 not set\n",
 657                         aid);
 658
 659         aid &= ~(BIT(15) | BIT(14));
 660
 661         priv->assoc_rsp_size = min(le16_to_cpu(resp->size) - S_DS_GEN,
 662                                    sizeof(priv->assoc_rsp_buf));
 663
 664         assoc_rsp->a_id = cpu_to_le16(aid);
 665         memcpy(priv->assoc_rsp_buf, &resp->params, priv->assoc_rsp_size);
 666
 667         if (status_code) {
 668                 priv->adapter->dbg.num_cmd_assoc_failure++;
 669                 mwifiex_dbg(priv->adapter, ERROR,
 670                             "ASSOC_RESP: failed,\t"
 671                             "status code=%d err=%#x a_id=%#x\n",
 672                             status_code, cap_info,
 673                             le16_to_cpu(assoc_rsp->a_id));
 674
 675                 mwifiex_dbg(priv->adapter, ERROR, "assoc failure: reason %s\n",
 676                             assoc_failure_reason_to_str(cap_info));
 677                 if (cap_info == CONNECT_ERR_ASSOC_ERR_TIMEOUT) {
 678                         if (status_code == MWIFIEX_ASSOC_CMD_FAILURE_AUTH) {
 679                                 ret = WLAN_STATUS_AUTH_TIMEOUT;
 680                                 mwifiex_dbg(priv->adapter, ERROR,
 681                                             "ASSOC_RESP: AUTH timeout\n");
 682                         } else {
 683                                 ret = WLAN_STATUS_UNSPECIFIED_FAILURE;
 684                                 mwifiex_dbg(priv->adapter, ERROR,
 685                                             "ASSOC_RESP: UNSPECIFIED failure\n");
 686                         }
 687                 } else {
 688                         ret = status_code;
 689                 }
 690
 691                 goto done;
 692         }
 693
 694         /* Send a Media Connected event, according to the Spec */
 695         priv->media_connected = true;
 696
 697         priv->adapter->ps_state = PS_STATE_AWAKE;
 698         priv->adapter->pps_uapsd_mode = false;
 699         priv->adapter->tx_lock_flag = false;
 700
 701         /* Set the attempted BSSID Index to current */
 702         bss_desc = priv->attempted_bss_desc;
 703
 704         mwifiex_dbg(priv->adapter, INFO, "info: ASSOC_RESP: %s\n",
 705                     bss_desc->ssid.ssid);
 706
 707         /* Make a copy of current BSSID descriptor */
 708         memcpy(&priv->curr_bss_params.bss_descriptor,
 709                bss_desc, sizeof(struct mwifiex_bssdescriptor));
 710
 711         /* Update curr_bss_params */
 712         priv->curr_bss_params.bss_descriptor.channel
 713                 = bss_desc->phy_param_set.ds_param_set.current_chan;
 714
 715         priv->curr_bss_params.band = (u8) bss_desc->bss_band;
 716
 717         if (bss_desc->wmm_ie.vend_hdr.element_id == WLAN_EID_VENDOR_SPECIFIC)
 718                 priv->curr_bss_params.wmm_enabled = true;
 719         else
 720                 priv->curr_bss_params.wmm_enabled = false;
 721
 722         if ((priv->wmm_required || bss_desc->bcn_ht_cap) &&
 723             priv->curr_bss_params.wmm_enabled)
 724                 priv->wmm_enabled = true;
 725         else
 726                 priv->wmm_enabled = false;
 727
 728         priv->curr_bss_params.wmm_uapsd_enabled = false;
 729
 730         if (priv->wmm_enabled)
 731                 priv->curr_bss_params.wmm_uapsd_enabled
 732                         = ((bss_desc->wmm_ie.qos_info_bitmap &
 733                                 IEEE80211_WMM_IE_AP_QOSINFO_UAPSD) ? 1 : 0);
 734
 735         mwifiex_dbg(priv->adapter, INFO,
 736                     "info: ASSOC_RESP: curr_pkt_filter is %#x\n",
 737                     priv->curr_pkt_filter);
 738         if (priv->sec_info.wpa_enabled || priv->sec_info.wpa2_enabled)
 739                 priv->wpa_is_gtk_set = false;
 740
 741         if (priv->wmm_enabled) {
 742                 /* Don't re-enable carrier until we get the WMM_GET_STATUS
 743                    event */
 744                 enable_data = false;
 745         } else {
 746                 /* Since WMM is not enabled, setup the queues with the
 747                    defaults */
 748                 mwifiex_wmm_setup_queue_priorities(priv, NULL);
 749                 mwifiex_wmm_setup_ac_downgrade(priv);
 750         }
 751
 752         if (enable_data)
 753                 mwifiex_dbg(priv->adapter, INFO,
 754                             "info: post association, re-enabling data flow\n");
 755
 756         /* Reset SNR/NF/RSSI values */
 757         priv->data_rssi_last = 0;
 758         priv->data_nf_last = 0;
 759         priv->data_rssi_avg = 0;
 760         priv->data_nf_avg = 0;
 761         priv->bcn_rssi_last = 0;
 762         priv->bcn_nf_last = 0;
 763         priv->bcn_rssi_avg = 0;
 764         priv->bcn_nf_avg = 0;
 765         priv->rxpd_rate = 0;
 766         priv->rxpd_htinfo = 0;
 767
 768         mwifiex_save_curr_bcn(priv);
 769
 770         priv->adapter->dbg.num_cmd_assoc_success++;
 771
 772         mwifiex_dbg(priv->adapter, INFO, "info: ASSOC_RESP: associated\n");
 773
 774         /* Add the ra_list here for infra mode as there will be only 1 ra
 775            always */
 776         mwifiex_ralist_add(priv,
 777                            priv->curr_bss_params.bss_descriptor.mac_address);
 778
 779         if (!netif_carrier_ok(priv->netdev))
 780                 netif_carrier_on(priv->netdev);
 781         mwifiex_wake_up_net_dev_queue(priv->netdev, adapter);
 782
 783         if (priv->sec_info.wpa_enabled || priv->sec_info.wpa2_enabled)
 784                 priv->scan_block = true;
 785         else
 786                 priv->port_open = true;
 787
 788 done:
 789         /* Need to indicate IOCTL complete */
 790         if (adapter->curr_cmd->wait_q_enabled) {
 791                 if (ret)
 792                         adapter->cmd_wait_q.status = -1;
 793                 else
 794                         adapter->cmd_wait_q.status = 0;
 795         }
 796
 797         return ret;
 798 }
 799
 800 /*
 801  * This function prepares command for ad-hoc start.
 802  *
 803  * Driver will fill up SSID, BSS mode, IBSS parameters, physical
 804  * parameters, probe delay, and capability information. Firmware
 805  * will fill up beacon period, basic rates and operational rates.
 806  *
 807  * In addition, the following TLVs are added -
 808  *      - Channel TLV
 809  *      - Vendor specific IE
 810  *      - WPA/WPA2 IE
 811  *      - HT Capabilities IE
 812  *      - HT Information IE
 813  *
 814  * Preparation also includes -
 815  *      - Setting command ID and proper size
 816  *      - Ensuring correct endian-ness
 817  */
 818 int
 819 mwifiex_cmd_802_11_ad_hoc_start(struct mwifiex_private *priv,
 820                                 struct host_cmd_ds_command *cmd,
 821                                 struct cfg80211_ssid *req_ssid)
 822 {
 823         int rsn_ie_len = 0;
 824         struct mwifiex_adapter *adapter = priv->adapter;
 825         struct host_cmd_ds_802_11_ad_hoc_start *adhoc_start =
 826                 &cmd->params.adhoc_start;
 827         struct mwifiex_bssdescriptor *bss_desc;
 828         u32 cmd_append_size = 0;
 829         u32 i;
 830         u16 tmp_cap;
 831         struct mwifiex_ie_types_chan_list_param_set *chan_tlv;
 832         u8 radio_type;
 833
 834         struct mwifiex_ie_types_htcap *ht_cap;
 835         struct mwifiex_ie_types_htinfo *ht_info;
 836         u8 *pos = (u8 *) adhoc_start +
 837                         sizeof(struct host_cmd_ds_802_11_ad_hoc_start);
 838
 839         if (!adapter)
 840                 return -1;
 841
 842         cmd->command = cpu_to_le16(HostCmd_CMD_802_11_AD_HOC_START);
 843
 844         bss_desc = &priv->curr_bss_params.bss_descriptor;
 845         priv->attempted_bss_desc = bss_desc;
 846
 847         /*
 848          * Fill in the parameters for 2 data structures:
 849          *   1. struct host_cmd_ds_802_11_ad_hoc_start command
 850          *   2. bss_desc
 851          * Driver will fill up SSID, bss_mode,IBSS param, Physical Param,
 852          * probe delay, and Cap info.
 853          * Firmware will fill up beacon period, Basic rates
 854          * and operational rates.
 855          */
 856
 857         memset(adhoc_start->ssid, 0, IEEE80211_MAX_SSID_LEN);
 858
 859         memcpy(adhoc_start->ssid, req_ssid->ssid, req_ssid->ssid_len);
 860
 861         mwifiex_dbg(adapter, INFO, "info: ADHOC_S_CMD: SSID = %s\n",
 862                     adhoc_start->ssid);
 863
 864         memset(bss_desc->ssid.ssid, 0, IEEE80211_MAX_SSID_LEN);
 865         memcpy(bss_desc->ssid.ssid, req_ssid->ssid, req_ssid->ssid_len);
 866
 867         bss_desc->ssid.ssid_len = req_ssid->ssid_len;
 868
 869         /* Set the BSS mode */
 870         adhoc_start->bss_mode = HostCmd_BSS_MODE_IBSS;
 871         bss_desc->bss_mode = NL80211_IFTYPE_ADHOC;
 872         adhoc_start->beacon_period = cpu_to_le16(priv->beacon_period);
 873         bss_desc->beacon_period = priv->beacon_period;
 874
 875         /* Set Physical param set */
 876 /* Parameter IE Id */
 877 #define DS_PARA_IE_ID   3
 878 /* Parameter IE length */
 879 #define DS_PARA_IE_LEN  1
 880
 881         adhoc_start->phy_param_set.ds_param_set.element_id = DS_PARA_IE_ID;
 882         adhoc_start->phy_param_set.ds_param_set.len = DS_PARA_IE_LEN;
 883
 884         if (!mwifiex_get_cfp(priv, adapter->adhoc_start_band,
 885                              (u16) priv->adhoc_channel, 0)) {
 886                 struct mwifiex_chan_freq_power *cfp;
 887                 cfp = mwifiex_get_cfp(priv, adapter->adhoc_start_band,
 888                                       FIRST_VALID_CHANNEL, 0);
 889                 if (cfp)
 890                         priv->adhoc_channel = (u8) cfp->channel;
 891         }
 892
 893         if (!priv->adhoc_channel) {
 894                 mwifiex_dbg(adapter, ERROR,
 895                             "ADHOC_S_CMD: adhoc_channel cannot be 0\n");
 896                 return -1;
 897         }
 898
 899         mwifiex_dbg(adapter, INFO,
 900                     "info: ADHOC_S_CMD: creating ADHOC on channel %d\n",
 901                     priv->adhoc_channel);
 902
 903         priv->curr_bss_params.bss_descriptor.channel = priv->adhoc_channel;
 904         priv->curr_bss_params.band = adapter->adhoc_start_band;
 905
 906         bss_desc->channel = priv->adhoc_channel;
 907         adhoc_start->phy_param_set.ds_param_set.current_chan =
 908                 priv->adhoc_channel;
 909
 910         memcpy(&bss_desc->phy_param_set, &adhoc_start->phy_param_set,
 911                sizeof(union ieee_types_phy_param_set));
 912
 913         /* Set IBSS param set */
 914 /* IBSS parameter IE Id */
 915 #define IBSS_PARA_IE_ID   6
 916 /* IBSS parameter IE length */
 917 #define IBSS_PARA_IE_LEN  2
 918
 919         adhoc_start->ss_param_set.ibss_param_set.element_id = IBSS_PARA_IE_ID;
 920         adhoc_start->ss_param_set.ibss_param_set.len = IBSS_PARA_IE_LEN;
 921         adhoc_start->ss_param_set.ibss_param_set.atim_window
 922                                         = cpu_to_le16(priv->atim_window);
 923         memcpy(&bss_desc->ss_param_set, &adhoc_start->ss_param_set,
 924                sizeof(union ieee_types_ss_param_set));
 925
 926         /* Set Capability info */
 927         bss_desc->cap_info_bitmap |= WLAN_CAPABILITY_IBSS;
 928         tmp_cap = WLAN_CAPABILITY_IBSS;
 929
 930         /* Set up privacy in bss_desc */
 931         if (priv->sec_info.encryption_mode) {
 932                 /* Ad-Hoc capability privacy on */
 933                 mwifiex_dbg(adapter, INFO,
 934                             "info: ADHOC_S_CMD: wep_status set privacy to WEP\n");
 935                 bss_desc->privacy = MWIFIEX_802_11_PRIV_FILTER_8021X_WEP;
 936                 tmp_cap |= WLAN_CAPABILITY_PRIVACY;
 937         } else {
 938                 mwifiex_dbg(adapter, INFO,
 939                             "info: ADHOC_S_CMD: wep_status NOT set,\t"
 940                             "setting privacy to ACCEPT ALL\n");
 941                 bss_desc->privacy = MWIFIEX_802_11_PRIV_FILTER_ACCEPT_ALL;
 942         }
 943
 944         memset(adhoc_start->data_rate, 0, sizeof(adhoc_start->data_rate));
 945         mwifiex_get_active_data_rates(priv, adhoc_start->data_rate);
 946         if ((adapter->adhoc_start_band & BAND_G) &&
 947             (priv->curr_pkt_filter & HostCmd_ACT_MAC_ADHOC_G_PROTECTION_ON)) {
 948                 if (mwifiex_send_cmd(priv, HostCmd_CMD_MAC_CONTROL,
 949                                      HostCmd_ACT_GEN_SET, 0,
 950                                      &priv->curr_pkt_filter, false)) {
 951                         mwifiex_dbg(adapter, ERROR,
 952                                     "ADHOC_S_CMD: G Protection config failed\n");
 953                         return -1;
 954                 }
 955         }
 956         /* Find the last non zero */
 957         for (i = 0; i < sizeof(adhoc_start->data_rate); i++)
 958                 if (!adhoc_start->data_rate[i])
 959                         break;
 960
 961         priv->curr_bss_params.num_of_rates = i;
 962
 963         /* Copy the ad-hoc creating rates into Current BSS rate structure */
 964         memcpy(&priv->curr_bss_params.data_rates,
 965                &adhoc_start->data_rate, priv->curr_bss_params.num_of_rates);
 966
 967         mwifiex_dbg(adapter, INFO, "info: ADHOC_S_CMD: rates=%4ph\n",
 968                     adhoc_start->data_rate);
 969
 970         mwifiex_dbg(adapter, INFO, "info: ADHOC_S_CMD: AD-HOC Start command is ready\n");
 971
 972         if (IS_SUPPORT_MULTI_BANDS(adapter)) {
 973                 /* Append a channel TLV */
 974                 chan_tlv = (struct mwifiex_ie_types_chan_list_param_set *) pos;
 975                 chan_tlv->header.type = cpu_to_le16(TLV_TYPE_CHANLIST);
 976                 chan_tlv->header.len =
 977                         cpu_to_le16(sizeof(struct mwifiex_chan_scan_param_set));
 978
 979                 memset(chan_tlv->chan_scan_param, 0x00,
 980                        sizeof(struct mwifiex_chan_scan_param_set));
 981                 chan_tlv->chan_scan_param[0].chan_number =
 982                         (u8) priv->curr_bss_params.bss_descriptor.channel;
 983
 984                 mwifiex_dbg(adapter, INFO, "info: ADHOC_S_CMD: TLV Chan = %d\n",
 985                             chan_tlv->chan_scan_param[0].chan_number);
 986
 987                 chan_tlv->chan_scan_param[0].radio_type
 988                        = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
 989                 if (adapter->adhoc_start_band & BAND_GN ||
 990                     adapter->adhoc_start_band & BAND_AN) {
 991                         if (adapter->sec_chan_offset ==
 992                                             IEEE80211_HT_PARAM_CHA_SEC_ABOVE)
 993                                 chan_tlv->chan_scan_param[0].radio_type |=
 994                                         (IEEE80211_HT_PARAM_CHA_SEC_ABOVE << 4);
 995                         else if (adapter->sec_chan_offset ==
 996                                             IEEE80211_HT_PARAM_CHA_SEC_BELOW)
 997                                 chan_tlv->chan_scan_param[0].radio_type |=
 998                                         (IEEE80211_HT_PARAM_CHA_SEC_BELOW << 4);
 999                 }
1000                 mwifiex_dbg(adapter, INFO, "info: ADHOC_S_CMD: TLV Band = %d\n",
1001                             chan_tlv->chan_scan_param[0].radio_type);
1002                 pos += sizeof(chan_tlv->header) +
1003                         sizeof(struct mwifiex_chan_scan_param_set);
1004                 cmd_append_size +=
1005                         sizeof(chan_tlv->header) +
1006                         sizeof(struct mwifiex_chan_scan_param_set);
1007         }
1008
1009         /* Append vendor specific IE TLV */
1010         cmd_append_size += mwifiex_cmd_append_vsie_tlv(priv,
1011                                 MWIFIEX_VSIE_MASK_ADHOC, &pos);
1012
1013         if (priv->sec_info.wpa_enabled) {
1014                 rsn_ie_len = mwifiex_append_rsn_ie_wpa_wpa2(priv, &pos);
1015                 if (rsn_ie_len == -1)
1016                         return -1;
1017                 cmd_append_size += rsn_ie_len;
1018         }
1019
1020         if (adapter->adhoc_11n_enabled) {
1021                 /* Fill HT CAPABILITY */
1022                 ht_cap = (struct mwifiex_ie_types_htcap *) pos;
1023                 memset(ht_cap, 0, sizeof(struct mwifiex_ie_types_htcap));
1024                 ht_cap->header.type = cpu_to_le16(WLAN_EID_HT_CAPABILITY);
1025                 ht_cap->header.len =
1026                        cpu_to_le16(sizeof(struct ieee80211_ht_cap));
1027                 radio_type = mwifiex_band_to_radio_type(
1028                                         priv->adapter->config_bands);
1029                 mwifiex_fill_cap_info(priv, radio_type, &ht_cap->ht_cap);
1030
1031                 if (adapter->sec_chan_offset ==
1032                                         IEEE80211_HT_PARAM_CHA_SEC_NONE) {
1033                         u16 tmp_ht_cap;
1034
1035                         tmp_ht_cap = le16_to_cpu(ht_cap->ht_cap.cap_info);
1036                         tmp_ht_cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
1037                         tmp_ht_cap &= ~IEEE80211_HT_CAP_SGI_40;
1038                         ht_cap->ht_cap.cap_info = cpu_to_le16(tmp_ht_cap);
1039                 }
1040
1041                 pos += sizeof(struct mwifiex_ie_types_htcap);
1042                 cmd_append_size += sizeof(struct mwifiex_ie_types_htcap);
1043
1044                 /* Fill HT INFORMATION */
1045                 ht_info = (struct mwifiex_ie_types_htinfo *) pos;
1046                 memset(ht_info, 0, sizeof(struct mwifiex_ie_types_htinfo));
1047                 ht_info->header.type = cpu_to_le16(WLAN_EID_HT_OPERATION);
1048                 ht_info->header.len =
1049                         cpu_to_le16(sizeof(struct ieee80211_ht_operation));
1050
1051                 ht_info->ht_oper.primary_chan =
1052                         (u8) priv->curr_bss_params.bss_descriptor.channel;
1053                 if (adapter->sec_chan_offset) {
1054                         ht_info->ht_oper.ht_param = adapter->sec_chan_offset;
1055                         ht_info->ht_oper.ht_param |=
1056                                         IEEE80211_HT_PARAM_CHAN_WIDTH_ANY;
1057                 }
1058                 ht_info->ht_oper.operation_mode =
1059                      cpu_to_le16(IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT);
1060                 ht_info->ht_oper.basic_set[0] = 0xff;
1061                 pos += sizeof(struct mwifiex_ie_types_htinfo);
1062                 cmd_append_size +=
1063                                 sizeof(struct mwifiex_ie_types_htinfo);
1064         }
1065
1066         cmd->size =
1067                 cpu_to_le16((u16)(sizeof(struct host_cmd_ds_802_11_ad_hoc_start)
1068                                   + S_DS_GEN + cmd_append_size));
1069
1070         if (adapter->adhoc_start_band == BAND_B)
1071                 tmp_cap &= ~WLAN_CAPABILITY_SHORT_SLOT_TIME;
1072         else
1073                 tmp_cap |= WLAN_CAPABILITY_SHORT_SLOT_TIME;
1074
1075         adhoc_start->cap_info_bitmap = cpu_to_le16(tmp_cap);
1076
1077         return 0;
1078 }
1079
1080 /*
1081  * This function prepares command for ad-hoc join.
1082  *
1083  * Most of the parameters are set up by copying from the target BSS descriptor
1084  * from the scan response.
1085  *
1086  * In addition, the following TLVs are added -
1087  *      - Channel TLV
1088  *      - Vendor specific IE
1089  *      - WPA/WPA2 IE
1090  *      - 11n IE
1091  *
1092  * Preparation also includes -
1093  *      - Setting command ID and proper size
1094  *      - Ensuring correct endian-ness
1095  */
1096 int
1097 mwifiex_cmd_802_11_ad_hoc_join(struct mwifiex_private *priv,
1098                                struct host_cmd_ds_command *cmd,
1099                                struct mwifiex_bssdescriptor *bss_desc)
1100 {
1101         int rsn_ie_len = 0;
1102         struct host_cmd_ds_802_11_ad_hoc_join *adhoc_join =
1103                 &cmd->params.adhoc_join;
1104         struct mwifiex_ie_types_chan_list_param_set *chan_tlv;
1105         u32 cmd_append_size = 0;
1106         u16 tmp_cap;
1107         u32 i, rates_size = 0;
1108         u16 curr_pkt_filter;
1109         u8 *pos =
1110                 (u8 *) adhoc_join +
1111                 sizeof(struct host_cmd_ds_802_11_ad_hoc_join);
1112
1113 /* Use G protection */
1114 #define USE_G_PROTECTION        0x02
1115         if (bss_desc->erp_flags & USE_G_PROTECTION) {
1116                 curr_pkt_filter =
1117                         priv->
1118                         curr_pkt_filter | HostCmd_ACT_MAC_ADHOC_G_PROTECTION_ON;
1119
1120                 if (mwifiex_send_cmd(priv, HostCmd_CMD_MAC_CONTROL,
1121                                      HostCmd_ACT_GEN_SET, 0,
1122                                      &curr_pkt_filter, false)) {
1123                         mwifiex_dbg(priv->adapter, ERROR,
1124                                     "ADHOC_J_CMD: G Protection config failed\n");
1125                         return -1;
1126                 }
1127         }
1128
1129         priv->attempted_bss_desc = bss_desc;
1130
1131         cmd->command = cpu_to_le16(HostCmd_CMD_802_11_AD_HOC_JOIN);
1132
1133         adhoc_join->bss_descriptor.bss_mode = HostCmd_BSS_MODE_IBSS;
1134
1135         adhoc_join->bss_descriptor.beacon_period
1136                 = cpu_to_le16(bss_desc->beacon_period);
1137
1138         memcpy(&adhoc_join->bss_descriptor.bssid,
1139                &bss_desc->mac_address, ETH_ALEN);
1140
1141         memcpy(&adhoc_join->bss_descriptor.ssid,
1142                &bss_desc->ssid.ssid, bss_desc->ssid.ssid_len);
1143
1144         memcpy(&adhoc_join->bss_descriptor.phy_param_set,
1145                &bss_desc->phy_param_set,
1146                sizeof(union ieee_types_phy_param_set));
1147
1148         memcpy(&adhoc_join->bss_descriptor.ss_param_set,
1149                &bss_desc->ss_param_set, sizeof(union ieee_types_ss_param_set));
1150
1151         tmp_cap = bss_desc->cap_info_bitmap;
1152
1153         tmp_cap &= CAPINFO_MASK;
1154
1155         mwifiex_dbg(priv->adapter, INFO,
1156                     "info: ADHOC_J_CMD: tmp_cap=%4X CAPINFO_MASK=%4lX\n",
1157                     tmp_cap, CAPINFO_MASK);
1158
1159         /* Information on BSSID descriptor passed to FW */
1160         mwifiex_dbg(priv->adapter, INFO,
1161                     "info: ADHOC_J_CMD: BSSID=%pM, SSID='%s'\n",
1162                     adhoc_join->bss_descriptor.bssid,
1163                     adhoc_join->bss_descriptor.ssid);
1164
1165         for (i = 0; i < MWIFIEX_SUPPORTED_RATES &&
1166                     bss_desc->supported_rates[i]; i++)
1167                 ;
1168         rates_size = i;
1169
1170         /* Copy Data Rates from the Rates recorded in scan response */
1171         memset(adhoc_join->bss_descriptor.data_rates, 0,
1172                sizeof(adhoc_join->bss_descriptor.data_rates));
1173         memcpy(adhoc_join->bss_descriptor.data_rates,
1174                bss_desc->supported_rates, rates_size);
1175
1176         /* Copy the adhoc join rates into Current BSS state structure */
1177         priv->curr_bss_params.num_of_rates = rates_size;
1178         memcpy(&priv->curr_bss_params.data_rates, bss_desc->supported_rates,
1179                rates_size);
1180
1181         /* Copy the channel information */
1182         priv->curr_bss_params.bss_descriptor.channel = bss_desc->channel;
1183         priv->curr_bss_params.band = (u8) bss_desc->bss_band;
1184
1185         if (priv->sec_info.wep_enabled || priv->sec_info.wpa_enabled)
1186                 tmp_cap |= WLAN_CAPABILITY_PRIVACY;
1187
1188         if (IS_SUPPORT_MULTI_BANDS(priv->adapter)) {
1189                 /* Append a channel TLV */
1190                 chan_tlv = (struct mwifiex_ie_types_chan_list_param_set *) pos;
1191                 chan_tlv->header.type = cpu_to_le16(TLV_TYPE_CHANLIST);
1192                 chan_tlv->header.len =
1193                         cpu_to_le16(sizeof(struct mwifiex_chan_scan_param_set));
1194
1195                 memset(chan_tlv->chan_scan_param, 0x00,
1196                        sizeof(struct mwifiex_chan_scan_param_set));
1197                 chan_tlv->chan_scan_param[0].chan_number =
1198                         (bss_desc->phy_param_set.ds_param_set.current_chan);
1199                 mwifiex_dbg(priv->adapter, INFO, "info: ADHOC_J_CMD: TLV Chan=%d\n",
1200                             chan_tlv->chan_scan_param[0].chan_number);
1201
1202                 chan_tlv->chan_scan_param[0].radio_type =
1203                         mwifiex_band_to_radio_type((u8) bss_desc->bss_band);
1204
1205                 mwifiex_dbg(priv->adapter, INFO, "info: ADHOC_J_CMD: TLV Band=%d\n",
1206                             chan_tlv->chan_scan_param[0].radio_type);
1207                 pos += sizeof(chan_tlv->header) +
1208                                 sizeof(struct mwifiex_chan_scan_param_set);
1209                 cmd_append_size += sizeof(chan_tlv->header) +
1210                                 sizeof(struct mwifiex_chan_scan_param_set);
1211         }
1212
1213         if (priv->sec_info.wpa_enabled)
1214                 rsn_ie_len = mwifiex_append_rsn_ie_wpa_wpa2(priv, &pos);
1215         if (rsn_ie_len == -1)
1216                 return -1;
1217         cmd_append_size += rsn_ie_len;
1218
1219         if (ISSUPP_11NENABLED(priv->adapter->fw_cap_info))
1220                 cmd_append_size += mwifiex_cmd_append_11n_tlv(priv,
1221                         bss_desc, &pos);
1222
1223         /* Append vendor specific IE TLV */
1224         cmd_append_size += mwifiex_cmd_append_vsie_tlv(priv,
1225                         MWIFIEX_VSIE_MASK_ADHOC, &pos);
1226
1227         cmd->size = cpu_to_le16
1228                 ((u16) (sizeof(struct host_cmd_ds_802_11_ad_hoc_join)
1229                         + S_DS_GEN + cmd_append_size));
1230
1231         adhoc_join->bss_descriptor.cap_info_bitmap = cpu_to_le16(tmp_cap);
1232
1233         return 0;
1234 }
1235
1236 /*
1237  * This function handles the command response of ad-hoc start and
1238  * ad-hoc join.
1239  *
1240  * The function generates a device-connected event to notify
1241  * the applications, in case of successful ad-hoc start/join, and
1242  * saves the beacon buffer.
1243  */
1244 int mwifiex_ret_802_11_ad_hoc(struct mwifiex_private *priv,
1245                               struct host_cmd_ds_command *resp)
1246 {
1247         int ret = 0;
1248         struct mwifiex_adapter *adapter = priv->adapter;
1249         struct host_cmd_ds_802_11_ad_hoc_result *adhoc_result;
1250         struct mwifiex_bssdescriptor *bss_desc;
1251         u16 reason_code;
1252
1253         adhoc_result = &resp->params.adhoc_result;
1254
1255         bss_desc = priv->attempted_bss_desc;
1256
1257         /* Join result code 0 --> SUCCESS */
1258         reason_code = le16_to_cpu(resp->result);
1259         if (reason_code) {
1260                 mwifiex_dbg(priv->adapter, ERROR, "ADHOC_RESP: failed\n");
1261                 if (priv->media_connected)
1262                         mwifiex_reset_connect_state(priv, reason_code);
1263
1264                 memset(&priv->curr_bss_params.bss_descriptor,
1265                        0x00, sizeof(struct mwifiex_bssdescriptor));
1266
1267                 ret = -1;
1268                 goto done;
1269         }
1270
1271         /* Send a Media Connected event, according to the Spec */
1272         priv->media_connected = true;
1273
1274         if (le16_to_cpu(resp->command) == HostCmd_CMD_802_11_AD_HOC_START) {
1275                 mwifiex_dbg(priv->adapter, INFO, "info: ADHOC_S_RESP %s\n",
1276                             bss_desc->ssid.ssid);
1277
1278                 /* Update the created network descriptor with the new BSSID */
1279                 memcpy(bss_desc->mac_address,
1280                        adhoc_result->bssid, ETH_ALEN);
1281
1282                 priv->adhoc_state = ADHOC_STARTED;
1283         } else {
1284                 /*
1285                  * Now the join cmd should be successful.
1286                  * If BSSID has changed use SSID to compare instead of BSSID
1287                  */
1288                 mwifiex_dbg(priv->adapter, INFO,
1289                             "info: ADHOC_J_RESP %s\n",
1290                             bss_desc->ssid.ssid);
1291
1292                 /*
1293                  * Make a copy of current BSSID descriptor, only needed for
1294                  * join since the current descriptor is already being used
1295                  * for adhoc start
1296                  */
1297                 memcpy(&priv->curr_bss_params.bss_descriptor,
1298                        bss_desc, sizeof(struct mwifiex_bssdescriptor));
1299
1300                 priv->adhoc_state = ADHOC_JOINED;
1301         }
1302
1303         mwifiex_dbg(priv->adapter, INFO, "info: ADHOC_RESP: channel = %d\n",
1304                     priv->adhoc_channel);
1305         mwifiex_dbg(priv->adapter, INFO, "info: ADHOC_RESP: BSSID = %pM\n",
1306                     priv->curr_bss_params.bss_descriptor.mac_address);
1307
1308         if (!netif_carrier_ok(priv->netdev))
1309                 netif_carrier_on(priv->netdev);
1310         mwifiex_wake_up_net_dev_queue(priv->netdev, adapter);
1311
1312         mwifiex_save_curr_bcn(priv);
1313
1314 done:
1315         /* Need to indicate IOCTL complete */
1316         if (adapter->curr_cmd->wait_q_enabled) {
1317                 if (ret)
1318                         adapter->cmd_wait_q.status = -1;
1319                 else
1320                         adapter->cmd_wait_q.status = 0;
1321
1322         }
1323
1324         return ret;
1325 }
1326
1327 /*
1328  * This function associates to a specific BSS discovered in a scan.
1329  *
1330  * It clears any past association response stored for application
1331  * retrieval and calls the command preparation routine to send the
1332  * command to firmware.
1333  */
1334 int mwifiex_associate(struct mwifiex_private *priv,
1335                       struct mwifiex_bssdescriptor *bss_desc)
1336 {
1337         /* Return error if the adapter is not STA role or table entry
1338          * is not marked as infra.
1339          */
1340         if ((GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA) ||
1341             (bss_desc->bss_mode != NL80211_IFTYPE_STATION))
1342                 return -1;
1343
1344         if (ISSUPP_11ACENABLED(priv->adapter->fw_cap_info) &&
1345             !bss_desc->disable_11n && !bss_desc->disable_11ac &&
1346             priv->adapter->config_bands & BAND_AAC)
1347                 mwifiex_set_11ac_ba_params(priv);
1348         else
1349                 mwifiex_set_ba_params(priv);
1350
1351         /* Clear any past association response stored for application
1352            retrieval */
1353         priv->assoc_rsp_size = 0;
1354
1355         return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_ASSOCIATE,
1356                                 HostCmd_ACT_GEN_SET, 0, bss_desc, true);
1357 }
1358
1359 /*
1360  * This function starts an ad-hoc network.
1361  *
1362  * It calls the command preparation routine to send the command to firmware.
1363  */
1364 int
1365 mwifiex_adhoc_start(struct mwifiex_private *priv,
1366                     struct cfg80211_ssid *adhoc_ssid)
1367 {
1368         mwifiex_dbg(priv->adapter, INFO, "info: Adhoc Channel = %d\n",
1369                     priv->adhoc_channel);
1370         mwifiex_dbg(priv->adapter, INFO, "info: curr_bss_params.channel = %d\n",
1371                     priv->curr_bss_params.bss_descriptor.channel);
1372         mwifiex_dbg(priv->adapter, INFO, "info: curr_bss_params.band = %d\n",
1373                     priv->curr_bss_params.band);
1374
1375         if (ISSUPP_11ACENABLED(priv->adapter->fw_cap_info) &&
1376             priv->adapter->config_bands & BAND_AAC)
1377                 mwifiex_set_11ac_ba_params(priv);
1378         else
1379                 mwifiex_set_ba_params(priv);
1380
1381         return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_AD_HOC_START,
1382                                 HostCmd_ACT_GEN_SET, 0, adhoc_ssid, true);
1383 }
1384
1385 /*
1386  * This function joins an ad-hoc network found in a previous scan.
1387  *
1388  * It calls the command preparation routine to send the command to firmware,
1389  * if already not connected to the requested SSID.
1390  */
1391 int mwifiex_adhoc_join(struct mwifiex_private *priv,
1392                        struct mwifiex_bssdescriptor *bss_desc)
1393 {
1394         mwifiex_dbg(priv->adapter, INFO,
1395                     "info: adhoc join: curr_bss ssid =%s\n",
1396                     priv->curr_bss_params.bss_descriptor.ssid.ssid);
1397         mwifiex_dbg(priv->adapter, INFO,
1398                     "info: adhoc join: curr_bss ssid_len =%u\n",
1399                     priv->curr_bss_params.bss_descriptor.ssid.ssid_len);
1400         mwifiex_dbg(priv->adapter, INFO, "info: adhoc join: ssid =%s\n",
1401                     bss_desc->ssid.ssid);
1402         mwifiex_dbg(priv->adapter, INFO, "info: adhoc join: ssid_len =%u\n",
1403                     bss_desc->ssid.ssid_len);
1404
1405         /* Check if the requested SSID is already joined */
1406         if (priv->curr_bss_params.bss_descriptor.ssid.ssid_len &&
1407             !mwifiex_ssid_cmp(&bss_desc->ssid,
1408                               &priv->curr_bss_params.bss_descriptor.ssid) &&
1409             (priv->curr_bss_params.bss_descriptor.bss_mode ==
1410                                                         NL80211_IFTYPE_ADHOC)) {
1411                 mwifiex_dbg(priv->adapter, INFO,
1412                             "info: ADHOC_J_CMD: new ad-hoc SSID\t"
1413                             "is the same as current; not attempting to re-join\n");
1414                 return -1;
1415         }
1416
1417         if (ISSUPP_11ACENABLED(priv->adapter->fw_cap_info) &&
1418             !bss_desc->disable_11n && !bss_desc->disable_11ac &&
1419             priv->adapter->config_bands & BAND_AAC)
1420                 mwifiex_set_11ac_ba_params(priv);
1421         else
1422                 mwifiex_set_ba_params(priv);
1423
1424         mwifiex_dbg(priv->adapter, INFO,
1425                     "info: curr_bss_params.channel = %d\n",
1426                     priv->curr_bss_params.bss_descriptor.channel);
1427         mwifiex_dbg(priv->adapter, INFO,
1428                     "info: curr_bss_params.band = %c\n",
1429                     priv->curr_bss_params.band);
1430
1431         return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_AD_HOC_JOIN,
1432                                 HostCmd_ACT_GEN_SET, 0, bss_desc, true);
1433 }
1434
1435 /*
1436  * This function deauthenticates/disconnects from infra network by sending
1437  * deauthentication request.
1438  */
1439 static int mwifiex_deauthenticate_infra(struct mwifiex_private *priv, u8 *mac)
1440 {
1441         u8 mac_address[ETH_ALEN];
1442         int ret;
1443
1444         if (!mac || is_zero_ether_addr(mac))
1445                 memcpy(mac_address,
1446                        priv->curr_bss_params.bss_descriptor.mac_address,
1447                        ETH_ALEN);
1448         else
1449                 memcpy(mac_address, mac, ETH_ALEN);
1450
1451         ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_DEAUTHENTICATE,
1452                                HostCmd_ACT_GEN_SET, 0, mac_address, true);
1453
1454         return ret;
1455 }
1456
1457 /*
1458  * This function deauthenticates/disconnects from a BSS.
1459  *
1460  * In case of infra made, it sends deauthentication request, and
1461  * in case of ad-hoc mode, a stop network request is sent to the firmware.
1462  * In AP mode, a command to stop bss is sent to firmware.
1463  */
1464 int mwifiex_deauthenticate(struct mwifiex_private *priv, u8 *mac)
1465 {
1466         int ret = 0;
1467
1468         if (!priv->media_connected)
1469                 return 0;
1470
1471         switch (priv->bss_mode) {
1472         case NL80211_IFTYPE_STATION:
1473         case NL80211_IFTYPE_P2P_CLIENT:
1474                 ret = mwifiex_deauthenticate_infra(priv, mac);
1475                 if (ret)
1476                         cfg80211_disconnected(priv->netdev, 0, NULL, 0,
1477                                               true, GFP_KERNEL);
1478                 break;
1479         case NL80211_IFTYPE_ADHOC:
1480                 return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_AD_HOC_STOP,
1481                                         HostCmd_ACT_GEN_SET, 0, NULL, true);
1482         case NL80211_IFTYPE_AP:
1483                 return mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP,
1484                                         HostCmd_ACT_GEN_SET, 0, NULL, true);
1485         default:
1486                 break;
1487         }
1488
1489         return ret;
1490 }
1491
1492 /* This function deauthenticates/disconnects from all BSS. */
1493 void mwifiex_deauthenticate_all(struct mwifiex_adapter *adapter)
1494 {
1495         struct mwifiex_private *priv;
1496         int i;
1497
1498         for (i = 0; i < adapter->priv_num; i++) {
1499                 priv = adapter->priv[i];
1500                 if (priv)
1501                         mwifiex_deauthenticate(priv, NULL);
1502         }
1503 }
1504 EXPORT_SYMBOL_GPL(mwifiex_deauthenticate_all);
1505
1506 /*
1507  * This function converts band to radio type used in channel TLV.
1508  */
1509 u8
1510 mwifiex_band_to_radio_type(u8 band)
1511 {
1512         switch (band) {
1513         case BAND_A:
1514         case BAND_AN:
1515         case BAND_A | BAND_AN:
1516         case BAND_A | BAND_AN | BAND_AAC:
1517                 return HostCmd_SCAN_RADIO_TYPE_A;
1518         case BAND_B:
1519         case BAND_G:
1520         case BAND_B | BAND_G:
1521         default:
1522                 return HostCmd_SCAN_RADIO_TYPE_BG;
1523         }
1524 }