drivers/net/wireless/mwifiex/join.c

   1 /*
   2  * Marvell Wireless LAN device driver: association and ad-hoc start/join
   3  *
   4  * Copyright (C) 2011, 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                 dev_dbg(priv->adapter->dev,
  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         dev_dbg(priv->adapter->dev,
 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                 dev_err(priv->adapter->dev, "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         dev_dbg(priv->adapter->dev, "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                 dev_err(priv->adapter->dev, "previously set fixed data rate %#x"
 184                         " is not compatible with the network\n",
 185                         priv->data_rate);
 186
 187                 ret = -1;
 188                 goto done;
 189         }
 190
 191         ret = 0;
 192 done:
 193         kfree(tmp);
 194         return ret;
 195 }
 196
 197 /*
 198  * This function creates the intersection of the rates supported by a
 199  * target BSS and our adapter settings for use in an assoc/join command.
 200  */
 201 static int
 202 mwifiex_setup_rates_from_bssdesc(struct mwifiex_private *priv,
 203                                  struct mwifiex_bssdescriptor *bss_desc,
 204                                  u8 *out_rates, u32 *out_rates_size)
 205 {
 206         u8 card_rates[MWIFIEX_SUPPORTED_RATES];
 207         u32 card_rates_size;
 208
 209         /* Copy AP supported rates */
 210         memcpy(out_rates, bss_desc->supported_rates, MWIFIEX_SUPPORTED_RATES);
 211         /* Get the STA supported rates */
 212         card_rates_size = mwifiex_get_active_data_rates(priv, card_rates);
 213         /* Get the common rates between AP and STA supported rates */
 214         if (mwifiex_get_common_rates(priv, out_rates, MWIFIEX_SUPPORTED_RATES,
 215                                      card_rates, card_rates_size)) {
 216                 *out_rates_size = 0;
 217                 dev_err(priv->adapter->dev, "%s: cannot get common rates\n",
 218                         __func__);
 219                 return -1;
 220         }
 221
 222         *out_rates_size =
 223                 min_t(size_t, strlen(out_rates), MWIFIEX_SUPPORTED_RATES);
 224
 225         return 0;
 226 }
 227
 228 /*
 229  * This function appends a WPS IE. It is called from the network join command
 230  * preparation routine.
 231  *
 232  * If the IE buffer has been setup by the application, this routine appends
 233  * the buffer as a WPS TLV type to the request.
 234  */
 235 static int
 236 mwifiex_cmd_append_wps_ie(struct mwifiex_private *priv, u8 **buffer)
 237 {
 238         int retLen = 0;
 239         struct mwifiex_ie_types_header ie_header;
 240
 241         if (!buffer || !*buffer)
 242                 return 0;
 243
 244         /*
 245          * If there is a wps ie buffer setup, append it to the return
 246          * parameter buffer pointer.
 247          */
 248         if (priv->wps_ie_len) {
 249                 dev_dbg(priv->adapter->dev, "cmd: append wps ie %d to %p\n",
 250                         priv->wps_ie_len, *buffer);
 251
 252                 /* Wrap the generic IE buffer with a pass through TLV type */
 253                 ie_header.type = cpu_to_le16(TLV_TYPE_MGMT_IE);
 254                 ie_header.len = cpu_to_le16(priv->wps_ie_len);
 255                 memcpy(*buffer, &ie_header, sizeof(ie_header));
 256                 *buffer += sizeof(ie_header);
 257                 retLen += sizeof(ie_header);
 258
 259                 memcpy(*buffer, priv->wps_ie, priv->wps_ie_len);
 260                 *buffer += priv->wps_ie_len;
 261                 retLen += priv->wps_ie_len;
 262
 263         }
 264
 265         kfree(priv->wps_ie);
 266         priv->wps_ie_len = 0;
 267         return retLen;
 268 }
 269
 270 /*
 271  * This function appends a WAPI IE.
 272  *
 273  * This function is called from the network join command preparation routine.
 274  *
 275  * If the IE buffer has been setup by the application, this routine appends
 276  * the buffer as a WAPI TLV type to the request.
 277  */
 278 static int
 279 mwifiex_cmd_append_wapi_ie(struct mwifiex_private *priv, u8 **buffer)
 280 {
 281         int retLen = 0;
 282         struct mwifiex_ie_types_header ie_header;
 283
 284         /* Null Checks */
 285         if (buffer == NULL)
 286                 return 0;
 287         if (*buffer == NULL)
 288                 return 0;
 289
 290         /*
 291          * If there is a wapi ie buffer setup, append it to the return
 292          *   parameter buffer pointer.
 293          */
 294         if (priv->wapi_ie_len) {
 295                 dev_dbg(priv->adapter->dev, "cmd: append wapi ie %d to %p\n",
 296                         priv->wapi_ie_len, *buffer);
 297
 298                 /* Wrap the generic IE buffer with a pass through TLV type */
 299                 ie_header.type = cpu_to_le16(TLV_TYPE_WAPI_IE);
 300                 ie_header.len = cpu_to_le16(priv->wapi_ie_len);
 301                 memcpy(*buffer, &ie_header, sizeof(ie_header));
 302
 303                 /* Increment the return size and the return buffer pointer
 304                    param */
 305                 *buffer += sizeof(ie_header);
 306                 retLen += sizeof(ie_header);
 307
 308                 /* Copy the wapi IE buffer to the output buffer, advance
 309                    pointer */
 310                 memcpy(*buffer, priv->wapi_ie, priv->wapi_ie_len);
 311
 312                 /* Increment the return size and the return buffer pointer
 313                    param */
 314                 *buffer += priv->wapi_ie_len;
 315                 retLen += priv->wapi_ie_len;
 316
 317         }
 318         /* return the length appended to the buffer */
 319         return retLen;
 320 }
 321
 322 /*
 323  * This function appends rsn ie tlv for wpa/wpa2 security modes.
 324  * It is called from the network join command preparation routine.
 325  */
 326 static int mwifiex_append_rsn_ie_wpa_wpa2(struct mwifiex_private *priv,
 327                                           u8 **buffer)
 328 {
 329         struct mwifiex_ie_types_rsn_param_set *rsn_ie_tlv;
 330         int rsn_ie_len;
 331
 332         if (!buffer || !(*buffer))
 333                 return 0;
 334
 335         rsn_ie_tlv = (struct mwifiex_ie_types_rsn_param_set *) (*buffer);
 336         rsn_ie_tlv->header.type = cpu_to_le16((u16) priv->wpa_ie[0]);
 337         rsn_ie_tlv->header.type = cpu_to_le16(
 338                                  le16_to_cpu(rsn_ie_tlv->header.type) & 0x00FF);
 339         rsn_ie_tlv->header.len = cpu_to_le16((u16) priv->wpa_ie[1]);
 340         rsn_ie_tlv->header.len = cpu_to_le16(le16_to_cpu(rsn_ie_tlv->header.len)
 341                                                          & 0x00FF);
 342         if (le16_to_cpu(rsn_ie_tlv->header.len) <= (sizeof(priv->wpa_ie) - 2))
 343                 memcpy(rsn_ie_tlv->rsn_ie, &priv->wpa_ie[2],
 344                        le16_to_cpu(rsn_ie_tlv->header.len));
 345         else
 346                 return -1;
 347
 348         rsn_ie_len = sizeof(rsn_ie_tlv->header) +
 349                                         le16_to_cpu(rsn_ie_tlv->header.len);
 350         *buffer += rsn_ie_len;
 351
 352         return rsn_ie_len;
 353 }
 354
 355 /*
 356  * This function prepares command for association.
 357  *
 358  * This sets the following parameters -
 359  *      - Peer MAC address
 360  *      - Listen interval
 361  *      - Beacon interval
 362  *      - Capability information
 363  *
 364  * ...and the following TLVs, as required -
 365  *      - SSID TLV
 366  *      - PHY TLV
 367  *      - SS TLV
 368  *      - Rates TLV
 369  *      - Authentication TLV
 370  *      - Channel TLV
 371  *      - WPA/WPA2 IE
 372  *      - 11n TLV
 373  *      - Vendor specific TLV
 374  *      - WMM TLV
 375  *      - WAPI IE
 376  *      - Generic IE
 377  *      - TSF TLV
 378  *
 379  * Preparation also includes -
 380  *      - Setting command ID and proper size
 381  *      - Ensuring correct endian-ness
 382  */
 383 int mwifiex_cmd_802_11_associate(struct mwifiex_private *priv,
 384                                  struct host_cmd_ds_command *cmd,
 385                                  struct mwifiex_bssdescriptor *bss_desc)
 386 {
 387         struct host_cmd_ds_802_11_associate *assoc = &cmd->params.associate;
 388         struct mwifiex_ie_types_ssid_param_set *ssid_tlv;
 389         struct mwifiex_ie_types_phy_param_set *phy_tlv;
 390         struct mwifiex_ie_types_ss_param_set *ss_tlv;
 391         struct mwifiex_ie_types_rates_param_set *rates_tlv;
 392         struct mwifiex_ie_types_auth_type *auth_tlv;
 393         struct mwifiex_ie_types_chan_list_param_set *chan_tlv;
 394         u8 rates[MWIFIEX_SUPPORTED_RATES];
 395         u32 rates_size;
 396         u16 tmp_cap;
 397         u8 *pos;
 398         int rsn_ie_len = 0;
 399
 400         pos = (u8 *) assoc;
 401
 402         cmd->command = cpu_to_le16(HostCmd_CMD_802_11_ASSOCIATE);
 403
 404         /* Save so we know which BSS Desc to use in the response handler */
 405         priv->attempted_bss_desc = bss_desc;
 406
 407         memcpy(assoc->peer_sta_addr,
 408                bss_desc->mac_address, sizeof(assoc->peer_sta_addr));
 409         pos += sizeof(assoc->peer_sta_addr);
 410
 411         /* Set the listen interval */
 412         assoc->listen_interval = cpu_to_le16(priv->listen_interval);
 413         /* Set the beacon period */
 414         assoc->beacon_period = cpu_to_le16(bss_desc->beacon_period);
 415
 416         pos += sizeof(assoc->cap_info_bitmap);
 417         pos += sizeof(assoc->listen_interval);
 418         pos += sizeof(assoc->beacon_period);
 419         pos += sizeof(assoc->dtim_period);
 420
 421         ssid_tlv = (struct mwifiex_ie_types_ssid_param_set *) pos;
 422         ssid_tlv->header.type = cpu_to_le16(WLAN_EID_SSID);
 423         ssid_tlv->header.len = cpu_to_le16((u16) bss_desc->ssid.ssid_len);
 424         memcpy(ssid_tlv->ssid, bss_desc->ssid.ssid,
 425                le16_to_cpu(ssid_tlv->header.len));
 426         pos += sizeof(ssid_tlv->header) + le16_to_cpu(ssid_tlv->header.len);
 427
 428         phy_tlv = (struct mwifiex_ie_types_phy_param_set *) pos;
 429         phy_tlv->header.type = cpu_to_le16(WLAN_EID_DS_PARAMS);
 430         phy_tlv->header.len = cpu_to_le16(sizeof(phy_tlv->fh_ds.ds_param_set));
 431         memcpy(&phy_tlv->fh_ds.ds_param_set,
 432                &bss_desc->phy_param_set.ds_param_set.current_chan,
 433                sizeof(phy_tlv->fh_ds.ds_param_set));
 434         pos += sizeof(phy_tlv->header) + le16_to_cpu(phy_tlv->header.len);
 435
 436         ss_tlv = (struct mwifiex_ie_types_ss_param_set *) pos;
 437         ss_tlv->header.type = cpu_to_le16(WLAN_EID_CF_PARAMS);
 438         ss_tlv->header.len = cpu_to_le16(sizeof(ss_tlv->cf_ibss.cf_param_set));
 439         pos += sizeof(ss_tlv->header) + le16_to_cpu(ss_tlv->header.len);
 440
 441         /* Get the common rates supported between the driver and the BSS Desc */
 442         if (mwifiex_setup_rates_from_bssdesc
 443             (priv, bss_desc, rates, &rates_size))
 444                 return -1;
 445
 446         /* Save the data rates into Current BSS state structure */
 447         priv->curr_bss_params.num_of_rates = rates_size;
 448         memcpy(&priv->curr_bss_params.data_rates, rates, rates_size);
 449
 450         /* Setup the Rates TLV in the association command */
 451         rates_tlv = (struct mwifiex_ie_types_rates_param_set *) pos;
 452         rates_tlv->header.type = cpu_to_le16(WLAN_EID_SUPP_RATES);
 453         rates_tlv->header.len = cpu_to_le16((u16) rates_size);
 454         memcpy(rates_tlv->rates, rates, rates_size);
 455         pos += sizeof(rates_tlv->header) + rates_size;
 456         dev_dbg(priv->adapter->dev, "info: ASSOC_CMD: rates size = %d\n",
 457                 rates_size);
 458
 459         /* Add the Authentication type to be used for Auth frames */
 460         auth_tlv = (struct mwifiex_ie_types_auth_type *) pos;
 461         auth_tlv->header.type = cpu_to_le16(TLV_TYPE_AUTH_TYPE);
 462         auth_tlv->header.len = cpu_to_le16(sizeof(auth_tlv->auth_type));
 463         if (priv->sec_info.wep_enabled)
 464                 auth_tlv->auth_type = cpu_to_le16(
 465                                 (u16) priv->sec_info.authentication_mode);
 466         else
 467                 auth_tlv->auth_type = cpu_to_le16(NL80211_AUTHTYPE_OPEN_SYSTEM);
 468
 469         pos += sizeof(auth_tlv->header) + le16_to_cpu(auth_tlv->header.len);
 470
 471         if (IS_SUPPORT_MULTI_BANDS(priv->adapter) &&
 472             !(ISSUPP_11NENABLED(priv->adapter->fw_cap_info) &&
 473             (!bss_desc->disable_11n) &&
 474             (priv->adapter->config_bands & BAND_GN ||
 475              priv->adapter->config_bands & BAND_AN) &&
 476             (bss_desc->bcn_ht_cap)
 477             )
 478                 ) {
 479                 /* Append a channel TLV for the channel the attempted AP was
 480                    found on */
 481                 chan_tlv = (struct mwifiex_ie_types_chan_list_param_set *) pos;
 482                 chan_tlv->header.type = cpu_to_le16(TLV_TYPE_CHANLIST);
 483                 chan_tlv->header.len =
 484                         cpu_to_le16(sizeof(struct mwifiex_chan_scan_param_set));
 485
 486                 memset(chan_tlv->chan_scan_param, 0x00,
 487                        sizeof(struct mwifiex_chan_scan_param_set));
 488                 chan_tlv->chan_scan_param[0].chan_number =
 489                         (bss_desc->phy_param_set.ds_param_set.current_chan);
 490                 dev_dbg(priv->adapter->dev, "info: Assoc: TLV Chan = %d\n",
 491                         chan_tlv->chan_scan_param[0].chan_number);
 492
 493                 chan_tlv->chan_scan_param[0].radio_type =
 494                         mwifiex_band_to_radio_type((u8) bss_desc->bss_band);
 495
 496                 dev_dbg(priv->adapter->dev, "info: Assoc: TLV Band = %d\n",
 497                         chan_tlv->chan_scan_param[0].radio_type);
 498                 pos += sizeof(chan_tlv->header) +
 499                         sizeof(struct mwifiex_chan_scan_param_set);
 500         }
 501
 502         if (!priv->wps.session_enable) {
 503                 if (priv->sec_info.wpa_enabled || priv->sec_info.wpa2_enabled)
 504                         rsn_ie_len = mwifiex_append_rsn_ie_wpa_wpa2(priv, &pos);
 505
 506                 if (rsn_ie_len == -1)
 507                         return -1;
 508         }
 509
 510         if (ISSUPP_11NENABLED(priv->adapter->fw_cap_info) &&
 511             (!bss_desc->disable_11n) &&
 512             (priv->adapter->config_bands & BAND_GN ||
 513              priv->adapter->config_bands & BAND_AN))
 514                 mwifiex_cmd_append_11n_tlv(priv, bss_desc, &pos);
 515
 516         if (ISSUPP_11ACENABLED(priv->adapter->fw_cap_info) &&
 517             !bss_desc->disable_11n && !bss_desc->disable_11ac &&
 518             (priv->adapter->config_bands & BAND_GAC ||
 519              priv->adapter->config_bands & BAND_AAC))
 520                 mwifiex_cmd_append_11ac_tlv(priv, bss_desc, &pos);
 521
 522         /* Append vendor specific IE TLV */
 523         mwifiex_cmd_append_vsie_tlv(priv, MWIFIEX_VSIE_MASK_ASSOC, &pos);
 524
 525         mwifiex_wmm_process_association_req(priv, &pos, &bss_desc->wmm_ie,
 526                                             bss_desc->bcn_ht_cap);
 527         if (priv->sec_info.wapi_enabled && priv->wapi_ie_len)
 528                 mwifiex_cmd_append_wapi_ie(priv, &pos);
 529
 530         if (priv->wps.session_enable && priv->wps_ie_len)
 531                 mwifiex_cmd_append_wps_ie(priv, &pos);
 532
 533         mwifiex_cmd_append_generic_ie(priv, &pos);
 534
 535         mwifiex_cmd_append_tsf_tlv(priv, &pos, bss_desc);
 536
 537         mwifiex_11h_process_join(priv, &pos, bss_desc);
 538
 539         cmd->size = cpu_to_le16((u16) (pos - (u8 *) assoc) + S_DS_GEN);
 540
 541         /* Set the Capability info at last */
 542         tmp_cap = bss_desc->cap_info_bitmap;
 543
 544         if (priv->adapter->config_bands == BAND_B)
 545                 tmp_cap &= ~WLAN_CAPABILITY_SHORT_SLOT_TIME;
 546
 547         tmp_cap &= CAPINFO_MASK;
 548         dev_dbg(priv->adapter->dev, "info: ASSOC_CMD: tmp_cap=%4X CAPINFO_MASK=%4lX\n",
 549                 tmp_cap, CAPINFO_MASK);
 550         assoc->cap_info_bitmap = cpu_to_le16(tmp_cap);
 551
 552         return 0;
 553 }
 554
 555 /*
 556  * Association firmware command response handler
 557  *
 558  * The response buffer for the association command has the following
 559  * memory layout.
 560  *
 561  * For cases where an association response was not received (indicated
 562  * by the CapInfo and AId field):
 563  *
 564  *     .------------------------------------------------------------.
 565  *     |  Header(4 * sizeof(t_u16)):  Standard command response hdr |
 566  *     .------------------------------------------------------------.
 567  *     |  cap_info/Error Return(t_u16):                             |
 568  *     |           0xFFFF(-1): Internal error                       |
 569  *     |           0xFFFE(-2): Authentication unhandled message     |
 570  *     |           0xFFFD(-3): Authentication refused               |
 571  *     |           0xFFFC(-4): Timeout waiting for AP response      |
 572  *     .------------------------------------------------------------.
 573  *     |  status_code(t_u16):                                       |
 574  *     |        If cap_info is -1:                                  |
 575  *     |           An internal firmware failure prevented the       |
 576  *     |           command from being processed.  The status_code   |
 577  *     |           will be set to 1.                                |
 578  *     |                                                            |
 579  *     |        If cap_info is -2:                                  |
 580  *     |           An authentication frame was received but was     |
 581  *     |           not handled by the firmware.  IEEE Status        |
 582  *     |           code for the failure is returned.                |
 583  *     |                                                            |
 584  *     |        If cap_info is -3:                                  |
 585  *     |           An authentication frame was received and the     |
 586  *     |           status_code is the IEEE Status reported in the   |
 587  *     |           response.                                        |
 588  *     |                                                            |
 589  *     |        If cap_info is -4:                                  |
 590  *     |           (1) Association response timeout                 |
 591  *     |           (2) Authentication response timeout              |
 592  *     .------------------------------------------------------------.
 593  *     |  a_id(t_u16): 0xFFFF                                       |
 594  *     .------------------------------------------------------------.
 595  *
 596  *
 597  * For cases where an association response was received, the IEEE
 598  * standard association response frame is returned:
 599  *
 600  *     .------------------------------------------------------------.
 601  *     |  Header(4 * sizeof(t_u16)):  Standard command response hdr |
 602  *     .------------------------------------------------------------.
 603  *     |  cap_info(t_u16): IEEE Capability                          |
 604  *     .------------------------------------------------------------.
 605  *     |  status_code(t_u16): IEEE Status Code                      |
 606  *     .------------------------------------------------------------.
 607  *     |  a_id(t_u16): IEEE Association ID                          |
 608  *     .------------------------------------------------------------.
 609  *     |  IEEE IEs(variable): Any received IEs comprising the       |
 610  *     |                      remaining portion of a received       |
 611  *     |                      association response frame.           |
 612  *     .------------------------------------------------------------.
 613  *
 614  * For simplistic handling, the status_code field can be used to determine
 615  * an association success (0) or failure (non-zero).
 616  */
 617 int mwifiex_ret_802_11_associate(struct mwifiex_private *priv,
 618                              struct host_cmd_ds_command *resp)
 619 {
 620         struct mwifiex_adapter *adapter = priv->adapter;
 621         int ret = 0;
 622         struct ieee_types_assoc_rsp *assoc_rsp;
 623         struct mwifiex_bssdescriptor *bss_desc;
 624         u8 enable_data = true;
 625         u16 cap_info, status_code;
 626
 627         assoc_rsp = (struct ieee_types_assoc_rsp *) &resp->params;
 628
 629         cap_info = le16_to_cpu(assoc_rsp->cap_info_bitmap);
 630         status_code = le16_to_cpu(assoc_rsp->status_code);
 631
 632         priv->assoc_rsp_size = min(le16_to_cpu(resp->size) - S_DS_GEN,
 633                                    sizeof(priv->assoc_rsp_buf));
 634
 635         memcpy(priv->assoc_rsp_buf, &resp->params, priv->assoc_rsp_size);
 636
 637         if (status_code) {
 638                 priv->adapter->dbg.num_cmd_assoc_failure++;
 639                 dev_err(priv->adapter->dev,
 640                         "ASSOC_RESP: failed, status code=%d err=%#x a_id=%#x\n",
 641                         status_code, cap_info, le16_to_cpu(assoc_rsp->a_id));
 642
 643                 if (cap_info == MWIFIEX_TIMEOUT_FOR_AP_RESP) {
 644                         if (status_code == MWIFIEX_STATUS_CODE_AUTH_TIMEOUT)
 645                                 ret = WLAN_STATUS_AUTH_TIMEOUT;
 646                         else
 647                                 ret = WLAN_STATUS_UNSPECIFIED_FAILURE;
 648                 } else {
 649                         ret = status_code;
 650                 }
 651
 652                 goto done;
 653         }
 654
 655         /* Send a Media Connected event, according to the Spec */
 656         priv->media_connected = true;
 657
 658         priv->adapter->ps_state = PS_STATE_AWAKE;
 659         priv->adapter->pps_uapsd_mode = false;
 660         priv->adapter->tx_lock_flag = false;
 661
 662         /* Set the attempted BSSID Index to current */
 663         bss_desc = priv->attempted_bss_desc;
 664
 665         dev_dbg(priv->adapter->dev, "info: ASSOC_RESP: %s\n",
 666                 bss_desc->ssid.ssid);
 667
 668         /* Make a copy of current BSSID descriptor */
 669         memcpy(&priv->curr_bss_params.bss_descriptor,
 670                bss_desc, sizeof(struct mwifiex_bssdescriptor));
 671
 672         /* Update curr_bss_params */
 673         priv->curr_bss_params.bss_descriptor.channel
 674                 = bss_desc->phy_param_set.ds_param_set.current_chan;
 675
 676         priv->curr_bss_params.band = (u8) bss_desc->bss_band;
 677
 678         if (bss_desc->wmm_ie.vend_hdr.element_id == WLAN_EID_VENDOR_SPECIFIC)
 679                 priv->curr_bss_params.wmm_enabled = true;
 680         else
 681                 priv->curr_bss_params.wmm_enabled = false;
 682
 683         if ((priv->wmm_required || bss_desc->bcn_ht_cap) &&
 684             priv->curr_bss_params.wmm_enabled)
 685                 priv->wmm_enabled = true;
 686         else
 687                 priv->wmm_enabled = false;
 688
 689         priv->curr_bss_params.wmm_uapsd_enabled = false;
 690
 691         if (priv->wmm_enabled)
 692                 priv->curr_bss_params.wmm_uapsd_enabled
 693                         = ((bss_desc->wmm_ie.qos_info_bitmap &
 694                                 IEEE80211_WMM_IE_AP_QOSINFO_UAPSD) ? 1 : 0);
 695
 696         dev_dbg(priv->adapter->dev, "info: ASSOC_RESP: curr_pkt_filter is %#x\n",
 697                 priv->curr_pkt_filter);
 698         if (priv->sec_info.wpa_enabled || priv->sec_info.wpa2_enabled)
 699                 priv->wpa_is_gtk_set = false;
 700
 701         if (priv->wmm_enabled) {
 702                 /* Don't re-enable carrier until we get the WMM_GET_STATUS
 703                    event */
 704                 enable_data = false;
 705         } else {
 706                 /* Since WMM is not enabled, setup the queues with the
 707                    defaults */
 708                 mwifiex_wmm_setup_queue_priorities(priv, NULL);
 709                 mwifiex_wmm_setup_ac_downgrade(priv);
 710         }
 711
 712         if (enable_data)
 713                 dev_dbg(priv->adapter->dev,
 714                         "info: post association, re-enabling data flow\n");
 715
 716         /* Reset SNR/NF/RSSI values */
 717         priv->data_rssi_last = 0;
 718         priv->data_nf_last = 0;
 719         priv->data_rssi_avg = 0;
 720         priv->data_nf_avg = 0;
 721         priv->bcn_rssi_last = 0;
 722         priv->bcn_nf_last = 0;
 723         priv->bcn_rssi_avg = 0;
 724         priv->bcn_nf_avg = 0;
 725         priv->rxpd_rate = 0;
 726         priv->rxpd_htinfo = 0;
 727
 728         mwifiex_save_curr_bcn(priv);
 729
 730         priv->adapter->dbg.num_cmd_assoc_success++;
 731
 732         dev_dbg(priv->adapter->dev, "info: ASSOC_RESP: associated\n");
 733
 734         /* Add the ra_list here for infra mode as there will be only 1 ra
 735            always */
 736         mwifiex_ralist_add(priv,
 737                            priv->curr_bss_params.bss_descriptor.mac_address);
 738
 739         if (!netif_carrier_ok(priv->netdev))
 740                 netif_carrier_on(priv->netdev);
 741         mwifiex_wake_up_net_dev_queue(priv->netdev, adapter);
 742
 743         if (priv->sec_info.wpa_enabled || priv->sec_info.wpa2_enabled)
 744                 priv->scan_block = true;
 745
 746 done:
 747         /* Need to indicate IOCTL complete */
 748         if (adapter->curr_cmd->wait_q_enabled) {
 749                 if (ret)
 750                         adapter->cmd_wait_q.status = -1;
 751                 else
 752                         adapter->cmd_wait_q.status = 0;
 753         }
 754
 755         return ret;
 756 }
 757
 758 /*
 759  * This function prepares command for ad-hoc start.
 760  *
 761  * Driver will fill up SSID, BSS mode, IBSS parameters, physical
 762  * parameters, probe delay, and capability information. Firmware
 763  * will fill up beacon period, basic rates and operational rates.
 764  *
 765  * In addition, the following TLVs are added -
 766  *      - Channel TLV
 767  *      - Vendor specific IE
 768  *      - WPA/WPA2 IE
 769  *      - HT Capabilities IE
 770  *      - HT Information IE
 771  *
 772  * Preparation also includes -
 773  *      - Setting command ID and proper size
 774  *      - Ensuring correct endian-ness
 775  */
 776 int
 777 mwifiex_cmd_802_11_ad_hoc_start(struct mwifiex_private *priv,
 778                                 struct host_cmd_ds_command *cmd,
 779                                 struct cfg80211_ssid *req_ssid)
 780 {
 781         int rsn_ie_len = 0;
 782         struct mwifiex_adapter *adapter = priv->adapter;
 783         struct host_cmd_ds_802_11_ad_hoc_start *adhoc_start =
 784                 &cmd->params.adhoc_start;
 785         struct mwifiex_bssdescriptor *bss_desc;
 786         u32 cmd_append_size = 0;
 787         u32 i;
 788         u16 tmp_cap;
 789         struct mwifiex_ie_types_chan_list_param_set *chan_tlv;
 790         u8 radio_type;
 791
 792         struct mwifiex_ie_types_htcap *ht_cap;
 793         struct mwifiex_ie_types_htinfo *ht_info;
 794         u8 *pos = (u8 *) adhoc_start +
 795                         sizeof(struct host_cmd_ds_802_11_ad_hoc_start);
 796
 797         if (!adapter)
 798                 return -1;
 799
 800         cmd->command = cpu_to_le16(HostCmd_CMD_802_11_AD_HOC_START);
 801
 802         bss_desc = &priv->curr_bss_params.bss_descriptor;
 803         priv->attempted_bss_desc = bss_desc;
 804
 805         /*
 806          * Fill in the parameters for 2 data structures:
 807          *   1. struct host_cmd_ds_802_11_ad_hoc_start command
 808          *   2. bss_desc
 809          * Driver will fill up SSID, bss_mode,IBSS param, Physical Param,
 810          * probe delay, and Cap info.
 811          * Firmware will fill up beacon period, Basic rates
 812          * and operational rates.
 813          */
 814
 815         memset(adhoc_start->ssid, 0, IEEE80211_MAX_SSID_LEN);
 816
 817         memcpy(adhoc_start->ssid, req_ssid->ssid, req_ssid->ssid_len);
 818
 819         dev_dbg(adapter->dev, "info: ADHOC_S_CMD: SSID = %s\n",
 820                 adhoc_start->ssid);
 821
 822         memset(bss_desc->ssid.ssid, 0, IEEE80211_MAX_SSID_LEN);
 823         memcpy(bss_desc->ssid.ssid, req_ssid->ssid, req_ssid->ssid_len);
 824
 825         bss_desc->ssid.ssid_len = req_ssid->ssid_len;
 826
 827         /* Set the BSS mode */
 828         adhoc_start->bss_mode = HostCmd_BSS_MODE_IBSS;
 829         bss_desc->bss_mode = NL80211_IFTYPE_ADHOC;
 830         adhoc_start->beacon_period = cpu_to_le16(priv->beacon_period);
 831         bss_desc->beacon_period = priv->beacon_period;
 832
 833         /* Set Physical param set */
 834 /* Parameter IE Id */
 835 #define DS_PARA_IE_ID   3
 836 /* Parameter IE length */
 837 #define DS_PARA_IE_LEN  1
 838
 839         adhoc_start->phy_param_set.ds_param_set.element_id = DS_PARA_IE_ID;
 840         adhoc_start->phy_param_set.ds_param_set.len = DS_PARA_IE_LEN;
 841
 842         if (!mwifiex_get_cfp(priv, adapter->adhoc_start_band,
 843                              (u16) priv->adhoc_channel, 0)) {
 844                 struct mwifiex_chan_freq_power *cfp;
 845                 cfp = mwifiex_get_cfp(priv, adapter->adhoc_start_band,
 846                                       FIRST_VALID_CHANNEL, 0);
 847                 if (cfp)
 848                         priv->adhoc_channel = (u8) cfp->channel;
 849         }
 850
 851         if (!priv->adhoc_channel) {
 852                 dev_err(adapter->dev, "ADHOC_S_CMD: adhoc_channel cannot be 0\n");
 853                 return -1;
 854         }
 855
 856         dev_dbg(adapter->dev, "info: ADHOC_S_CMD: creating ADHOC on channel %d\n",
 857                 priv->adhoc_channel);
 858
 859         priv->curr_bss_params.bss_descriptor.channel = priv->adhoc_channel;
 860         priv->curr_bss_params.band = adapter->adhoc_start_band;
 861
 862         bss_desc->channel = priv->adhoc_channel;
 863         adhoc_start->phy_param_set.ds_param_set.current_chan =
 864                 priv->adhoc_channel;
 865
 866         memcpy(&bss_desc->phy_param_set, &adhoc_start->phy_param_set,
 867                sizeof(union ieee_types_phy_param_set));
 868
 869         /* Set IBSS param set */
 870 /* IBSS parameter IE Id */
 871 #define IBSS_PARA_IE_ID   6
 872 /* IBSS parameter IE length */
 873 #define IBSS_PARA_IE_LEN  2
 874
 875         adhoc_start->ss_param_set.ibss_param_set.element_id = IBSS_PARA_IE_ID;
 876         adhoc_start->ss_param_set.ibss_param_set.len = IBSS_PARA_IE_LEN;
 877         adhoc_start->ss_param_set.ibss_param_set.atim_window
 878                                         = cpu_to_le16(priv->atim_window);
 879         memcpy(&bss_desc->ss_param_set, &adhoc_start->ss_param_set,
 880                sizeof(union ieee_types_ss_param_set));
 881
 882         /* Set Capability info */
 883         bss_desc->cap_info_bitmap |= WLAN_CAPABILITY_IBSS;
 884         tmp_cap = le16_to_cpu(adhoc_start->cap_info_bitmap);
 885         tmp_cap &= ~WLAN_CAPABILITY_ESS;
 886         tmp_cap |= WLAN_CAPABILITY_IBSS;
 887
 888         /* Set up privacy in bss_desc */
 889         if (priv->sec_info.encryption_mode) {
 890                 /* Ad-Hoc capability privacy on */
 891                 dev_dbg(adapter->dev,
 892                         "info: ADHOC_S_CMD: wep_status set privacy to WEP\n");
 893                 bss_desc->privacy = MWIFIEX_802_11_PRIV_FILTER_8021X_WEP;
 894                 tmp_cap |= WLAN_CAPABILITY_PRIVACY;
 895         } else {
 896                 dev_dbg(adapter->dev, "info: ADHOC_S_CMD: wep_status NOT set,"
 897                                 " setting privacy to ACCEPT ALL\n");
 898                 bss_desc->privacy = MWIFIEX_802_11_PRIV_FILTER_ACCEPT_ALL;
 899         }
 900
 901         memset(adhoc_start->data_rate, 0, sizeof(adhoc_start->data_rate));
 902         mwifiex_get_active_data_rates(priv, adhoc_start->data_rate);
 903         if ((adapter->adhoc_start_band & BAND_G) &&
 904             (priv->curr_pkt_filter & HostCmd_ACT_MAC_ADHOC_G_PROTECTION_ON)) {
 905                 if (mwifiex_send_cmd_async(priv, HostCmd_CMD_MAC_CONTROL,
 906                                            HostCmd_ACT_GEN_SET, 0,
 907                                            &priv->curr_pkt_filter)) {
 908                         dev_err(adapter->dev,
 909                                 "ADHOC_S_CMD: G Protection config failed\n");
 910                         return -1;
 911                 }
 912         }
 913         /* Find the last non zero */
 914         for (i = 0; i < sizeof(adhoc_start->data_rate); i++)
 915                 if (!adhoc_start->data_rate[i])
 916                         break;
 917
 918         priv->curr_bss_params.num_of_rates = i;
 919
 920         /* Copy the ad-hoc creating rates into Current BSS rate structure */
 921         memcpy(&priv->curr_bss_params.data_rates,
 922                &adhoc_start->data_rate, priv->curr_bss_params.num_of_rates);
 923
 924         dev_dbg(adapter->dev, "info: ADHOC_S_CMD: rates=%4ph\n",
 925                 adhoc_start->data_rate);
 926
 927         dev_dbg(adapter->dev, "info: ADHOC_S_CMD: AD-HOC Start command is ready\n");
 928
 929         if (IS_SUPPORT_MULTI_BANDS(adapter)) {
 930                 /* Append a channel TLV */
 931                 chan_tlv = (struct mwifiex_ie_types_chan_list_param_set *) pos;
 932                 chan_tlv->header.type = cpu_to_le16(TLV_TYPE_CHANLIST);
 933                 chan_tlv->header.len =
 934                         cpu_to_le16(sizeof(struct mwifiex_chan_scan_param_set));
 935
 936                 memset(chan_tlv->chan_scan_param, 0x00,
 937                        sizeof(struct mwifiex_chan_scan_param_set));
 938                 chan_tlv->chan_scan_param[0].chan_number =
 939                         (u8) priv->curr_bss_params.bss_descriptor.channel;
 940
 941                 dev_dbg(adapter->dev, "info: ADHOC_S_CMD: TLV Chan = %d\n",
 942                         chan_tlv->chan_scan_param[0].chan_number);
 943
 944                 chan_tlv->chan_scan_param[0].radio_type
 945                        = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
 946                 if (adapter->adhoc_start_band & BAND_GN ||
 947                     adapter->adhoc_start_band & BAND_AN) {
 948                         if (adapter->sec_chan_offset ==
 949                                             IEEE80211_HT_PARAM_CHA_SEC_ABOVE)
 950                                 chan_tlv->chan_scan_param[0].radio_type |=
 951                                         (IEEE80211_HT_PARAM_CHA_SEC_ABOVE << 4);
 952                         else if (adapter->sec_chan_offset ==
 953                                             IEEE80211_HT_PARAM_CHA_SEC_ABOVE)
 954                                 chan_tlv->chan_scan_param[0].radio_type |=
 955                                         (IEEE80211_HT_PARAM_CHA_SEC_BELOW << 4);
 956                 }
 957                 dev_dbg(adapter->dev, "info: ADHOC_S_CMD: TLV Band = %d\n",
 958                         chan_tlv->chan_scan_param[0].radio_type);
 959                 pos += sizeof(chan_tlv->header) +
 960                         sizeof(struct mwifiex_chan_scan_param_set);
 961                 cmd_append_size +=
 962                         sizeof(chan_tlv->header) +
 963                         sizeof(struct mwifiex_chan_scan_param_set);
 964         }
 965
 966         /* Append vendor specific IE TLV */
 967         cmd_append_size += mwifiex_cmd_append_vsie_tlv(priv,
 968                                 MWIFIEX_VSIE_MASK_ADHOC, &pos);
 969
 970         if (priv->sec_info.wpa_enabled) {
 971                 rsn_ie_len = mwifiex_append_rsn_ie_wpa_wpa2(priv, &pos);
 972                 if (rsn_ie_len == -1)
 973                         return -1;
 974                 cmd_append_size += rsn_ie_len;
 975         }
 976
 977         if (adapter->adhoc_11n_enabled) {
 978                 /* Fill HT CAPABILITY */
 979                 ht_cap = (struct mwifiex_ie_types_htcap *) pos;
 980                 memset(ht_cap, 0, sizeof(struct mwifiex_ie_types_htcap));
 981                 ht_cap->header.type = cpu_to_le16(WLAN_EID_HT_CAPABILITY);
 982                 ht_cap->header.len =
 983                        cpu_to_le16(sizeof(struct ieee80211_ht_cap));
 984                 radio_type = mwifiex_band_to_radio_type(
 985                                         priv->adapter->config_bands);
 986                 mwifiex_fill_cap_info(priv, radio_type, ht_cap);
 987
 988                 if (adapter->sec_chan_offset ==
 989                                         IEEE80211_HT_PARAM_CHA_SEC_NONE) {
 990                         u16 tmp_ht_cap;
 991
 992                         tmp_ht_cap = le16_to_cpu(ht_cap->ht_cap.cap_info);
 993                         tmp_ht_cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
 994                         tmp_ht_cap &= ~IEEE80211_HT_CAP_SGI_40;
 995                         ht_cap->ht_cap.cap_info = cpu_to_le16(tmp_ht_cap);
 996                 }
 997
 998                 pos += sizeof(struct mwifiex_ie_types_htcap);
 999                 cmd_append_size += sizeof(struct mwifiex_ie_types_htcap);
1000
1001                 /* Fill HT INFORMATION */
1002                 ht_info = (struct mwifiex_ie_types_htinfo *) pos;
1003                 memset(ht_info, 0, sizeof(struct mwifiex_ie_types_htinfo));
1004                 ht_info->header.type = cpu_to_le16(WLAN_EID_HT_OPERATION);
1005                 ht_info->header.len =
1006                         cpu_to_le16(sizeof(struct ieee80211_ht_operation));
1007
1008                 ht_info->ht_oper.primary_chan =
1009                         (u8) priv->curr_bss_params.bss_descriptor.channel;
1010                 if (adapter->sec_chan_offset) {
1011                         ht_info->ht_oper.ht_param = adapter->sec_chan_offset;
1012                         ht_info->ht_oper.ht_param |=
1013                                         IEEE80211_HT_PARAM_CHAN_WIDTH_ANY;
1014                 }
1015                 ht_info->ht_oper.operation_mode =
1016                      cpu_to_le16(IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT);
1017                 ht_info->ht_oper.basic_set[0] = 0xff;
1018                 pos += sizeof(struct mwifiex_ie_types_htinfo);
1019                 cmd_append_size +=
1020                                 sizeof(struct mwifiex_ie_types_htinfo);
1021         }
1022
1023         cmd->size =
1024                 cpu_to_le16((u16)(sizeof(struct host_cmd_ds_802_11_ad_hoc_start)
1025                                   + S_DS_GEN + cmd_append_size));
1026
1027         if (adapter->adhoc_start_band == BAND_B)
1028                 tmp_cap &= ~WLAN_CAPABILITY_SHORT_SLOT_TIME;
1029         else
1030                 tmp_cap |= WLAN_CAPABILITY_SHORT_SLOT_TIME;
1031
1032         adhoc_start->cap_info_bitmap = cpu_to_le16(tmp_cap);
1033
1034         return 0;
1035 }
1036
1037 /*
1038  * This function prepares command for ad-hoc join.
1039  *
1040  * Most of the parameters are set up by copying from the target BSS descriptor
1041  * from the scan response.
1042  *
1043  * In addition, the following TLVs are added -
1044  *      - Channel TLV
1045  *      - Vendor specific IE
1046  *      - WPA/WPA2 IE
1047  *      - 11n IE
1048  *
1049  * Preparation also includes -
1050  *      - Setting command ID and proper size
1051  *      - Ensuring correct endian-ness
1052  */
1053 int
1054 mwifiex_cmd_802_11_ad_hoc_join(struct mwifiex_private *priv,
1055                                struct host_cmd_ds_command *cmd,
1056                                struct mwifiex_bssdescriptor *bss_desc)
1057 {
1058         int rsn_ie_len = 0;
1059         struct host_cmd_ds_802_11_ad_hoc_join *adhoc_join =
1060                 &cmd->params.adhoc_join;
1061         struct mwifiex_ie_types_chan_list_param_set *chan_tlv;
1062         u32 cmd_append_size = 0;
1063         u16 tmp_cap;
1064         u32 i, rates_size = 0;
1065         u16 curr_pkt_filter;
1066         u8 *pos =
1067                 (u8 *) adhoc_join +
1068                 sizeof(struct host_cmd_ds_802_11_ad_hoc_join);
1069
1070 /* Use G protection */
1071 #define USE_G_PROTECTION        0x02
1072         if (bss_desc->erp_flags & USE_G_PROTECTION) {
1073                 curr_pkt_filter =
1074                         priv->
1075                         curr_pkt_filter | HostCmd_ACT_MAC_ADHOC_G_PROTECTION_ON;
1076
1077                 if (mwifiex_send_cmd_async(priv, HostCmd_CMD_MAC_CONTROL,
1078                                            HostCmd_ACT_GEN_SET, 0,
1079                                            &curr_pkt_filter)) {
1080                         dev_err(priv->adapter->dev,
1081                                 "ADHOC_J_CMD: G Protection config failed\n");
1082                         return -1;
1083                 }
1084         }
1085
1086         priv->attempted_bss_desc = bss_desc;
1087
1088         cmd->command = cpu_to_le16(HostCmd_CMD_802_11_AD_HOC_JOIN);
1089
1090         adhoc_join->bss_descriptor.bss_mode = HostCmd_BSS_MODE_IBSS;
1091
1092         adhoc_join->bss_descriptor.beacon_period
1093                 = cpu_to_le16(bss_desc->beacon_period);
1094
1095         memcpy(&adhoc_join->bss_descriptor.bssid,
1096                &bss_desc->mac_address, ETH_ALEN);
1097
1098         memcpy(&adhoc_join->bss_descriptor.ssid,
1099                &bss_desc->ssid.ssid, bss_desc->ssid.ssid_len);
1100
1101         memcpy(&adhoc_join->bss_descriptor.phy_param_set,
1102                &bss_desc->phy_param_set,
1103                sizeof(union ieee_types_phy_param_set));
1104
1105         memcpy(&adhoc_join->bss_descriptor.ss_param_set,
1106                &bss_desc->ss_param_set, sizeof(union ieee_types_ss_param_set));
1107
1108         tmp_cap = bss_desc->cap_info_bitmap;
1109
1110         tmp_cap &= CAPINFO_MASK;
1111
1112         dev_dbg(priv->adapter->dev,
1113                 "info: ADHOC_J_CMD: tmp_cap=%4X CAPINFO_MASK=%4lX\n",
1114                 tmp_cap, CAPINFO_MASK);
1115
1116         /* Information on BSSID descriptor passed to FW */
1117         dev_dbg(priv->adapter->dev, "info: ADHOC_J_CMD: BSSID=%pM, SSID='%s'\n",
1118                 adhoc_join->bss_descriptor.bssid,
1119                 adhoc_join->bss_descriptor.ssid);
1120
1121         for (i = 0; i < MWIFIEX_SUPPORTED_RATES &&
1122                     bss_desc->supported_rates[i]; i++)
1123                 ;
1124         rates_size = i;
1125
1126         /* Copy Data Rates from the Rates recorded in scan response */
1127         memset(adhoc_join->bss_descriptor.data_rates, 0,
1128                sizeof(adhoc_join->bss_descriptor.data_rates));
1129         memcpy(adhoc_join->bss_descriptor.data_rates,
1130                bss_desc->supported_rates, rates_size);
1131
1132         /* Copy the adhoc join rates into Current BSS state structure */
1133         priv->curr_bss_params.num_of_rates = rates_size;
1134         memcpy(&priv->curr_bss_params.data_rates, bss_desc->supported_rates,
1135                rates_size);
1136
1137         /* Copy the channel information */
1138         priv->curr_bss_params.bss_descriptor.channel = bss_desc->channel;
1139         priv->curr_bss_params.band = (u8) bss_desc->bss_band;
1140
1141         if (priv->sec_info.wep_enabled || priv->sec_info.wpa_enabled)
1142                 tmp_cap |= WLAN_CAPABILITY_PRIVACY;
1143
1144         if (IS_SUPPORT_MULTI_BANDS(priv->adapter)) {
1145                 /* Append a channel TLV */
1146                 chan_tlv = (struct mwifiex_ie_types_chan_list_param_set *) pos;
1147                 chan_tlv->header.type = cpu_to_le16(TLV_TYPE_CHANLIST);
1148                 chan_tlv->header.len =
1149                         cpu_to_le16(sizeof(struct mwifiex_chan_scan_param_set));
1150
1151                 memset(chan_tlv->chan_scan_param, 0x00,
1152                        sizeof(struct mwifiex_chan_scan_param_set));
1153                 chan_tlv->chan_scan_param[0].chan_number =
1154                         (bss_desc->phy_param_set.ds_param_set.current_chan);
1155                 dev_dbg(priv->adapter->dev, "info: ADHOC_J_CMD: TLV Chan=%d\n",
1156                         chan_tlv->chan_scan_param[0].chan_number);
1157
1158                 chan_tlv->chan_scan_param[0].radio_type =
1159                         mwifiex_band_to_radio_type((u8) bss_desc->bss_band);
1160
1161                 dev_dbg(priv->adapter->dev, "info: ADHOC_J_CMD: TLV Band=%d\n",
1162                         chan_tlv->chan_scan_param[0].radio_type);
1163                 pos += sizeof(chan_tlv->header) +
1164                                 sizeof(struct mwifiex_chan_scan_param_set);
1165                 cmd_append_size += sizeof(chan_tlv->header) +
1166                                 sizeof(struct mwifiex_chan_scan_param_set);
1167         }
1168
1169         if (priv->sec_info.wpa_enabled)
1170                 rsn_ie_len = mwifiex_append_rsn_ie_wpa_wpa2(priv, &pos);
1171         if (rsn_ie_len == -1)
1172                 return -1;
1173         cmd_append_size += rsn_ie_len;
1174
1175         if (ISSUPP_11NENABLED(priv->adapter->fw_cap_info))
1176                 cmd_append_size += mwifiex_cmd_append_11n_tlv(priv,
1177                         bss_desc, &pos);
1178
1179         /* Append vendor specific IE TLV */
1180         cmd_append_size += mwifiex_cmd_append_vsie_tlv(priv,
1181                         MWIFIEX_VSIE_MASK_ADHOC, &pos);
1182
1183         cmd->size = cpu_to_le16
1184                 ((u16) (sizeof(struct host_cmd_ds_802_11_ad_hoc_join)
1185                         + S_DS_GEN + cmd_append_size));
1186
1187         adhoc_join->bss_descriptor.cap_info_bitmap = cpu_to_le16(tmp_cap);
1188
1189         return 0;
1190 }
1191
1192 /*
1193  * This function handles the command response of ad-hoc start and
1194  * ad-hoc join.
1195  *
1196  * The function generates a device-connected event to notify
1197  * the applications, in case of successful ad-hoc start/join, and
1198  * saves the beacon buffer.
1199  */
1200 int mwifiex_ret_802_11_ad_hoc(struct mwifiex_private *priv,
1201                               struct host_cmd_ds_command *resp)
1202 {
1203         int ret = 0;
1204         struct mwifiex_adapter *adapter = priv->adapter;
1205         struct host_cmd_ds_802_11_ad_hoc_result *adhoc_result;
1206         struct mwifiex_bssdescriptor *bss_desc;
1207         u16 reason_code;
1208
1209         adhoc_result = &resp->params.adhoc_result;
1210
1211         bss_desc = priv->attempted_bss_desc;
1212
1213         /* Join result code 0 --> SUCCESS */
1214         reason_code = le16_to_cpu(resp->result);
1215         if (reason_code) {
1216                 dev_err(priv->adapter->dev, "ADHOC_RESP: failed\n");
1217                 if (priv->media_connected)
1218                         mwifiex_reset_connect_state(priv, reason_code);
1219
1220                 memset(&priv->curr_bss_params.bss_descriptor,
1221                        0x00, sizeof(struct mwifiex_bssdescriptor));
1222
1223                 ret = -1;
1224                 goto done;
1225         }
1226
1227         /* Send a Media Connected event, according to the Spec */
1228         priv->media_connected = true;
1229
1230         if (le16_to_cpu(resp->command) == HostCmd_CMD_802_11_AD_HOC_START) {
1231                 dev_dbg(priv->adapter->dev, "info: ADHOC_S_RESP %s\n",
1232                         bss_desc->ssid.ssid);
1233
1234                 /* Update the created network descriptor with the new BSSID */
1235                 memcpy(bss_desc->mac_address,
1236                        adhoc_result->bssid, ETH_ALEN);
1237
1238                 priv->adhoc_state = ADHOC_STARTED;
1239         } else {
1240                 /*
1241                  * Now the join cmd should be successful.
1242                  * If BSSID has changed use SSID to compare instead of BSSID
1243                  */
1244                 dev_dbg(priv->adapter->dev, "info: ADHOC_J_RESP %s\n",
1245                         bss_desc->ssid.ssid);
1246
1247                 /*
1248                  * Make a copy of current BSSID descriptor, only needed for
1249                  * join since the current descriptor is already being used
1250                  * for adhoc start
1251                  */
1252                 memcpy(&priv->curr_bss_params.bss_descriptor,
1253                        bss_desc, sizeof(struct mwifiex_bssdescriptor));
1254
1255                 priv->adhoc_state = ADHOC_JOINED;
1256         }
1257
1258         dev_dbg(priv->adapter->dev, "info: ADHOC_RESP: channel = %d\n",
1259                 priv->adhoc_channel);
1260         dev_dbg(priv->adapter->dev, "info: ADHOC_RESP: BSSID = %pM\n",
1261                 priv->curr_bss_params.bss_descriptor.mac_address);
1262
1263         if (!netif_carrier_ok(priv->netdev))
1264                 netif_carrier_on(priv->netdev);
1265         mwifiex_wake_up_net_dev_queue(priv->netdev, adapter);
1266
1267         mwifiex_save_curr_bcn(priv);
1268
1269 done:
1270         /* Need to indicate IOCTL complete */
1271         if (adapter->curr_cmd->wait_q_enabled) {
1272                 if (ret)
1273                         adapter->cmd_wait_q.status = -1;
1274                 else
1275                         adapter->cmd_wait_q.status = 0;
1276
1277         }
1278
1279         return ret;
1280 }
1281
1282 /*
1283  * This function associates to a specific BSS discovered in a scan.
1284  *
1285  * It clears any past association response stored for application
1286  * retrieval and calls the command preparation routine to send the
1287  * command to firmware.
1288  */
1289 int mwifiex_associate(struct mwifiex_private *priv,
1290                       struct mwifiex_bssdescriptor *bss_desc)
1291 {
1292         u8 current_bssid[ETH_ALEN];
1293
1294         /* Return error if the adapter or table entry is not marked as infra */
1295         if ((priv->bss_mode != NL80211_IFTYPE_STATION) ||
1296             (bss_desc->bss_mode != NL80211_IFTYPE_STATION))
1297                 return -1;
1298
1299         if (ISSUPP_11ACENABLED(priv->adapter->fw_cap_info) &&
1300             !bss_desc->disable_11n && !bss_desc->disable_11ac &&
1301             (priv->adapter->config_bands & BAND_GAC ||
1302              priv->adapter->config_bands & BAND_AAC))
1303                 mwifiex_set_11ac_ba_params(priv);
1304         else
1305                 mwifiex_set_ba_params(priv);
1306
1307         memcpy(&current_bssid,
1308                &priv->curr_bss_params.bss_descriptor.mac_address,
1309                sizeof(current_bssid));
1310
1311         /* Clear any past association response stored for application
1312            retrieval */
1313         priv->assoc_rsp_size = 0;
1314
1315         return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_ASSOCIATE,
1316                                     HostCmd_ACT_GEN_SET, 0, bss_desc);
1317 }
1318
1319 /*
1320  * This function starts an ad-hoc network.
1321  *
1322  * It calls the command preparation routine to send the command to firmware.
1323  */
1324 int
1325 mwifiex_adhoc_start(struct mwifiex_private *priv,
1326                     struct cfg80211_ssid *adhoc_ssid)
1327 {
1328         dev_dbg(priv->adapter->dev, "info: Adhoc Channel = %d\n",
1329                 priv->adhoc_channel);
1330         dev_dbg(priv->adapter->dev, "info: curr_bss_params.channel = %d\n",
1331                 priv->curr_bss_params.bss_descriptor.channel);
1332         dev_dbg(priv->adapter->dev, "info: curr_bss_params.band = %d\n",
1333                 priv->curr_bss_params.band);
1334
1335         if (ISSUPP_11ACENABLED(priv->adapter->fw_cap_info) &&
1336             (priv->adapter->config_bands & BAND_GAC ||
1337              priv->adapter->config_bands & BAND_AAC))
1338                 mwifiex_set_11ac_ba_params(priv);
1339         else
1340                 mwifiex_set_ba_params(priv);
1341
1342         return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_AD_HOC_START,
1343                                     HostCmd_ACT_GEN_SET, 0, adhoc_ssid);
1344 }
1345
1346 /*
1347  * This function joins an ad-hoc network found in a previous scan.
1348  *
1349  * It calls the command preparation routine to send the command to firmware,
1350  * if already not connected to the requested SSID.
1351  */
1352 int mwifiex_adhoc_join(struct mwifiex_private *priv,
1353                        struct mwifiex_bssdescriptor *bss_desc)
1354 {
1355         dev_dbg(priv->adapter->dev, "info: adhoc join: curr_bss ssid =%s\n",
1356                 priv->curr_bss_params.bss_descriptor.ssid.ssid);
1357         dev_dbg(priv->adapter->dev, "info: adhoc join: curr_bss ssid_len =%u\n",
1358                 priv->curr_bss_params.bss_descriptor.ssid.ssid_len);
1359         dev_dbg(priv->adapter->dev, "info: adhoc join: ssid =%s\n",
1360                 bss_desc->ssid.ssid);
1361         dev_dbg(priv->adapter->dev, "info: adhoc join: ssid_len =%u\n",
1362                 bss_desc->ssid.ssid_len);
1363
1364         /* Check if the requested SSID is already joined */
1365         if (priv->curr_bss_params.bss_descriptor.ssid.ssid_len &&
1366             !mwifiex_ssid_cmp(&bss_desc->ssid,
1367                               &priv->curr_bss_params.bss_descriptor.ssid) &&
1368             (priv->curr_bss_params.bss_descriptor.bss_mode ==
1369                                                         NL80211_IFTYPE_ADHOC)) {
1370                 dev_dbg(priv->adapter->dev, "info: ADHOC_J_CMD: new ad-hoc SSID"
1371                         " is the same as current; not attempting to re-join\n");
1372                 return -1;
1373         }
1374
1375         if (ISSUPP_11ACENABLED(priv->adapter->fw_cap_info) &&
1376             !bss_desc->disable_11n && !bss_desc->disable_11ac &&
1377             (priv->adapter->config_bands & BAND_GAC ||
1378              priv->adapter->config_bands & BAND_AAC))
1379                 mwifiex_set_11ac_ba_params(priv);
1380         else
1381                 mwifiex_set_ba_params(priv);
1382
1383         dev_dbg(priv->adapter->dev, "info: curr_bss_params.channel = %d\n",
1384                 priv->curr_bss_params.bss_descriptor.channel);
1385         dev_dbg(priv->adapter->dev, "info: curr_bss_params.band = %c\n",
1386                 priv->curr_bss_params.band);
1387
1388         return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_AD_HOC_JOIN,
1389                                     HostCmd_ACT_GEN_SET, 0, bss_desc);
1390 }
1391
1392 /*
1393  * This function deauthenticates/disconnects from infra network by sending
1394  * deauthentication request.
1395  */
1396 static int mwifiex_deauthenticate_infra(struct mwifiex_private *priv, u8 *mac)
1397 {
1398         u8 mac_address[ETH_ALEN];
1399         int ret;
1400
1401         if (!mac || is_zero_ether_addr(mac))
1402                 memcpy(mac_address,
1403                        priv->curr_bss_params.bss_descriptor.mac_address,
1404                        ETH_ALEN);
1405         else
1406                 memcpy(mac_address, mac, ETH_ALEN);
1407
1408         ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_DEAUTHENTICATE,
1409                                     HostCmd_ACT_GEN_SET, 0, mac_address);
1410
1411         return ret;
1412 }
1413
1414 /*
1415  * This function deauthenticates/disconnects from a BSS.
1416  *
1417  * In case of infra made, it sends deauthentication request, and
1418  * in case of ad-hoc mode, a stop network request is sent to the firmware.
1419  * In AP mode, a command to stop bss is sent to firmware.
1420  */
1421 int mwifiex_deauthenticate(struct mwifiex_private *priv, u8 *mac)
1422 {
1423         if (!priv->media_connected)
1424                 return 0;
1425
1426         switch (priv->bss_mode) {
1427         case NL80211_IFTYPE_STATION:
1428                 return mwifiex_deauthenticate_infra(priv, mac);
1429         case NL80211_IFTYPE_ADHOC:
1430                 return mwifiex_send_cmd_sync(priv,
1431                                              HostCmd_CMD_802_11_AD_HOC_STOP,
1432                                              HostCmd_ACT_GEN_SET, 0, NULL);
1433         case NL80211_IFTYPE_AP:
1434                 return mwifiex_send_cmd_sync(priv, HostCmd_CMD_UAP_BSS_STOP,
1435                                              HostCmd_ACT_GEN_SET, 0, NULL);
1436         default:
1437                 break;
1438         }
1439
1440         return 0;
1441 }
1442 EXPORT_SYMBOL_GPL(mwifiex_deauthenticate);
1443
1444 /*
1445  * This function converts band to radio type used in channel TLV.
1446  */
1447 u8
1448 mwifiex_band_to_radio_type(u8 band)
1449 {
1450         switch (band) {
1451         case BAND_A:
1452         case BAND_AN:
1453         case BAND_A | BAND_AN:
1454         case BAND_A | BAND_AN | BAND_AAC:
1455                 return HostCmd_SCAN_RADIO_TYPE_A;
1456         case BAND_B:
1457         case BAND_G:
1458         case BAND_B | BAND_G:
1459         default:
1460                 return HostCmd_SCAN_RADIO_TYPE_BG;
1461         }
1462 }