drivers/net/wireless/libertas/join.c

   1 /**
   2   *  Functions implementing wlan infrastructure and adhoc join routines,
   3   *  IOCTL handlers as well as command preperation and response routines
   4   *  for sending adhoc start, adhoc join, and association commands
   5   *  to the firmware.
   6   */
   7 #include <linux/netdevice.h>
   8 #include <linux/if_arp.h>
   9 #include <linux/wireless.h>
  10 #include <linux/etherdevice.h>
  11
  12 #include <net/iw_handler.h>
  13
  14 #include "host.h"
  15 #include "decl.h"
  16 #include "join.h"
  17 #include "dev.h"
  18 #include "assoc.h"
  19
  20 /* Supported rates for ad-hoc B mode */
  21 u8 adhoc_rates_b[5] = { 0x02, 0x04, 0x0b, 0x16, 0x00 };
  22
  23
  24 /**
  25  *  @brief This function finds common rates between rate1 and card rates.
  26  *
  27  * It will fill common rates in rate1 as output if found.
  28  *
  29  * NOTE: Setting the MSB of the basic rates need to be taken
  30  *   care, either before or after calling this function
  31  *
  32  *  @param adapter     A pointer to wlan_adapter structure
  33  *  @param rate1       the buffer which keeps input and output
  34  *  @param rate1_size  the size of rate1 buffer; new size of buffer on return
  35  *
  36  *  @return            0 or -1
  37  */
  38 static int get_common_rates(wlan_adapter * adapter, u8 * rates, u16 *rates_size)
  39 {
  40         u8 *card_rates = libertas_bg_rates;
  41         size_t num_card_rates = sizeof(libertas_bg_rates);
  42         int ret = 0, i, j;
  43         u8 tmp[30];
  44         size_t tmp_size = 0;
  45
  46         /* For each rate in card_rates that exists in rate1, copy to tmp */
  47         for (i = 0; card_rates[i] && (i < num_card_rates); i++) {
  48                 for (j = 0; rates[j] && (j < *rates_size); j++) {
  49                         if (rates[j] == card_rates[i])
  50                                 tmp[tmp_size++] = card_rates[i];
  51                 }
  52         }
  53
  54         lbs_dbg_hex("rate1 (AP) rates:", rates, *rates_size);
  55         lbs_dbg_hex("rate2 (Card) rates:", card_rates, num_card_rates);
  56         lbs_dbg_hex("Common rates:", tmp, tmp_size);
  57         lbs_deb_join("Tx datarate is currently 0x%X\n", adapter->cur_rate);
  58
  59         if (!adapter->auto_rate) {
  60                 for (i = 0; i < tmp_size; i++) {
  61                         if (tmp[i] == adapter->cur_rate)
  62                                 goto done;
  63                 }
  64                 lbs_pr_alert("Previously set fixed data rate %#x isn't "
  65                        "compatible with the network.\n", adapter->cur_rate);
  66                 ret = -1;
  67                 goto done;
  68         }
  69         ret = 0;
  70
  71 done:
  72         memset(rates, 0, *rates_size);
  73         *rates_size = min_t(int, tmp_size, *rates_size);
  74         memcpy(rates, tmp, *rates_size);
  75         return ret;
  76 }
  77
  78
  79 /**
  80  *  @brief Sets the MSB on basic rates as the firmware requires
  81  *
  82  * Scan through an array and set the MSB for basic data rates.
  83  *
  84  *  @param rates     buffer of data rates
  85  *  @param len       size of buffer
  86  */
  87 static void libertas_set_basic_rate_flags(u8 * rates, size_t len)
  88 {
  89         int i;
  90
  91         for (i = 0; i < len; i++) {
  92                 if (rates[i] == 0x02 || rates[i] == 0x04 ||
  93                     rates[i] == 0x0b || rates[i] == 0x16)
  94                         rates[i] |= 0x80;
  95         }
  96 }
  97
  98 /**
  99  *  @brief Unsets the MSB on basic rates
 100  *
 101  * Scan through an array and unset the MSB for basic data rates.
 102  *
 103  *  @param rates     buffer of data rates
 104  *  @param len       size of buffer
 105  */
 106 void libertas_unset_basic_rate_flags(u8 * rates, size_t len)
 107 {
 108         int i;
 109
 110         for (i = 0; i < len; i++)
 111                 rates[i] &= 0x7f;
 112 }
 113
 114
 115 int libertas_send_deauth(wlan_private * priv)
 116 {
 117         wlan_adapter *adapter = priv->adapter;
 118         int ret = 0;
 119
 120         if (adapter->mode == IW_MODE_INFRA &&
 121             adapter->connect_status == LIBERTAS_CONNECTED)
 122                 ret = libertas_send_deauthentication(priv);
 123         else
 124                 ret = -ENOTSUPP;
 125
 126         return ret;
 127 }
 128
 129 /**
 130  *  @brief Associate to a specific BSS discovered in a scan
 131  *
 132  *  @param priv      A pointer to wlan_private structure
 133  *  @param pbssdesc  Pointer to the BSS descriptor to associate with.
 134  *
 135  *  @return          0-success, otherwise fail
 136  */
 137 int wlan_associate(wlan_private * priv, struct assoc_request * assoc_req)
 138 {
 139         wlan_adapter *adapter = priv->adapter;
 140         int ret;
 141
 142         lbs_deb_enter(LBS_DEB_JOIN);
 143
 144         ret = libertas_prepare_and_send_command(priv, CMD_802_11_AUTHENTICATE,
 145                                     0, CMD_OPTION_WAITFORRSP,
 146                                     0, assoc_req->bss.bssid);
 147
 148         if (ret)
 149                 goto done;
 150
 151         /* set preamble to firmware */
 152         if (   (adapter->capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
 153             && (assoc_req->bss.capability & WLAN_CAPABILITY_SHORT_PREAMBLE))
 154                 adapter->preamble = CMD_TYPE_SHORT_PREAMBLE;
 155         else
 156                 adapter->preamble = CMD_TYPE_LONG_PREAMBLE;
 157
 158         libertas_set_radio_control(priv);
 159
 160         ret = libertas_prepare_and_send_command(priv, CMD_802_11_ASSOCIATE,
 161                                     0, CMD_OPTION_WAITFORRSP, 0, assoc_req);
 162
 163 done:
 164         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 165         return ret;
 166 }
 167
 168 /**
 169  *  @brief Start an Adhoc Network
 170  *
 171  *  @param priv         A pointer to wlan_private structure
 172  *  @param adhocssid    The ssid of the Adhoc Network
 173  *  @return             0--success, -1--fail
 174  */
 175 int libertas_start_adhoc_network(wlan_private * priv, struct assoc_request * assoc_req)
 176 {
 177         wlan_adapter *adapter = priv->adapter;
 178         int ret = 0;
 179
 180         adapter->adhoccreate = 1;
 181
 182         if (adapter->capability & WLAN_CAPABILITY_SHORT_PREAMBLE) {
 183                 lbs_deb_join("AdhocStart: Short preamble\n");
 184                 adapter->preamble = CMD_TYPE_SHORT_PREAMBLE;
 185         } else {
 186                 lbs_deb_join("AdhocStart: Long preamble\n");
 187                 adapter->preamble = CMD_TYPE_LONG_PREAMBLE;
 188         }
 189
 190         libertas_set_radio_control(priv);
 191
 192         lbs_deb_join("AdhocStart: channel = %d\n", assoc_req->channel);
 193         lbs_deb_join("AdhocStart: band = %d\n", assoc_req->band);
 194
 195         ret = libertas_prepare_and_send_command(priv, CMD_802_11_AD_HOC_START,
 196                                     0, CMD_OPTION_WAITFORRSP, 0, assoc_req);
 197
 198         return ret;
 199 }
 200
 201 /**
 202  *  @brief Join an adhoc network found in a previous scan
 203  *
 204  *  @param priv         A pointer to wlan_private structure
 205  *  @param pbssdesc     Pointer to a BSS descriptor found in a previous scan
 206  *                      to attempt to join
 207  *
 208  *  @return             0--success, -1--fail
 209  */
 210 int libertas_join_adhoc_network(wlan_private * priv, struct assoc_request * assoc_req)
 211 {
 212         wlan_adapter *adapter = priv->adapter;
 213         struct bss_descriptor * bss = &assoc_req->bss;
 214         int ret = 0;
 215
 216         lbs_deb_join("%s: Current SSID '%s', ssid length %u\n",
 217                      __func__,
 218                      escape_essid(adapter->curbssparams.ssid,
 219                                   adapter->curbssparams.ssid_len),
 220                      adapter->curbssparams.ssid_len);
 221         lbs_deb_join("%s: requested ssid '%s', ssid length %u\n",
 222                      __func__, escape_essid(bss->ssid, bss->ssid_len),
 223                      bss->ssid_len);
 224
 225         /* check if the requested SSID is already joined */
 226         if (adapter->curbssparams.ssid_len
 227             && !libertas_ssid_cmp(adapter->curbssparams.ssid,
 228                                   adapter->curbssparams.ssid_len,
 229                                   bss->ssid, bss->ssid_len)
 230             && (adapter->mode == IW_MODE_ADHOC)) {
 231                 lbs_deb_join(
 232                        "ADHOC_J_CMD: New ad-hoc SSID is the same as current, "
 233                        "not attempting to re-join");
 234                 return -1;
 235         }
 236
 237         /* Use shortpreamble only when both creator and card supports
 238            short preamble */
 239         if (   !(bss->capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
 240             || !(adapter->capability & WLAN_CAPABILITY_SHORT_PREAMBLE)) {
 241                 lbs_deb_join("AdhocJoin: Long preamble\n");
 242                 adapter->preamble = CMD_TYPE_LONG_PREAMBLE;
 243         } else {
 244                 lbs_deb_join("AdhocJoin: Short preamble\n");
 245                 adapter->preamble = CMD_TYPE_SHORT_PREAMBLE;
 246         }
 247
 248         libertas_set_radio_control(priv);
 249
 250         lbs_deb_join("AdhocJoin: channel = %d\n", assoc_req->channel);
 251         lbs_deb_join("AdhocJoin: band = %c\n", assoc_req->band);
 252
 253         adapter->adhoccreate = 0;
 254
 255         ret = libertas_prepare_and_send_command(priv, CMD_802_11_AD_HOC_JOIN,
 256                                     0, CMD_OPTION_WAITFORRSP,
 257                                     OID_802_11_SSID, assoc_req);
 258
 259         return ret;
 260 }
 261
 262 int libertas_stop_adhoc_network(wlan_private * priv)
 263 {
 264         return libertas_prepare_and_send_command(priv, CMD_802_11_AD_HOC_STOP,
 265                                      0, CMD_OPTION_WAITFORRSP, 0, NULL);
 266 }
 267
 268 /**
 269  *  @brief Send Deauthentication Request
 270  *
 271  *  @param priv      A pointer to wlan_private structure
 272  *  @return          0--success, -1--fail
 273  */
 274 int libertas_send_deauthentication(wlan_private * priv)
 275 {
 276         return libertas_prepare_and_send_command(priv, CMD_802_11_DEAUTHENTICATE,
 277                                      0, CMD_OPTION_WAITFORRSP, 0, NULL);
 278 }
 279
 280 /**
 281  *  @brief This function prepares command of authenticate.
 282  *
 283  *  @param priv      A pointer to wlan_private structure
 284  *  @param cmd       A pointer to cmd_ds_command structure
 285  *  @param pdata_buf Void cast of pointer to a BSSID to authenticate with
 286  *
 287  *  @return         0 or -1
 288  */
 289 int libertas_cmd_80211_authenticate(wlan_private * priv,
 290                                  struct cmd_ds_command *cmd,
 291                                  void *pdata_buf)
 292 {
 293         wlan_adapter *adapter = priv->adapter;
 294         struct cmd_ds_802_11_authenticate *pauthenticate = &cmd->params.auth;
 295         int ret = -1;
 296         u8 *bssid = pdata_buf;
 297
 298         lbs_deb_enter(LBS_DEB_JOIN);
 299
 300         cmd->command = cpu_to_le16(CMD_802_11_AUTHENTICATE);
 301         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_authenticate)
 302                                 + S_DS_GEN);
 303
 304         /* translate auth mode to 802.11 defined wire value */
 305         switch (adapter->secinfo.auth_mode) {
 306         case IW_AUTH_ALG_OPEN_SYSTEM:
 307                 pauthenticate->authtype = 0x00;
 308                 break;
 309         case IW_AUTH_ALG_SHARED_KEY:
 310                 pauthenticate->authtype = 0x01;
 311                 break;
 312         case IW_AUTH_ALG_LEAP:
 313                 pauthenticate->authtype = 0x80;
 314                 break;
 315         default:
 316                 lbs_deb_join("AUTH_CMD: invalid auth alg 0x%X\n",
 317                              adapter->secinfo.auth_mode);
 318                 goto out;
 319         }
 320
 321         memcpy(pauthenticate->macaddr, bssid, ETH_ALEN);
 322
 323         lbs_deb_join("AUTH_CMD: BSSID is : " MAC_FMT " auth=0x%X\n",
 324                      MAC_ARG(bssid), pauthenticate->authtype);
 325         ret = 0;
 326
 327 out:
 328         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 329         return ret;
 330 }
 331
 332 int libertas_cmd_80211_deauthenticate(wlan_private * priv,
 333                                    struct cmd_ds_command *cmd)
 334 {
 335         wlan_adapter *adapter = priv->adapter;
 336         struct cmd_ds_802_11_deauthenticate *dauth = &cmd->params.deauth;
 337
 338         lbs_deb_enter(LBS_DEB_JOIN);
 339
 340         cmd->command = cpu_to_le16(CMD_802_11_DEAUTHENTICATE);
 341         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_deauthenticate) +
 342                              S_DS_GEN);
 343
 344         /* set AP MAC address */
 345         memmove(dauth->macaddr, adapter->curbssparams.bssid, ETH_ALEN);
 346
 347         /* Reason code 3 = Station is leaving */
 348 #define REASON_CODE_STA_LEAVING 3
 349         dauth->reasoncode = cpu_to_le16(REASON_CODE_STA_LEAVING);
 350
 351         lbs_deb_leave(LBS_DEB_JOIN);
 352         return 0;
 353 }
 354
 355 int libertas_cmd_80211_associate(wlan_private * priv,
 356                               struct cmd_ds_command *cmd, void *pdata_buf)
 357 {
 358         wlan_adapter *adapter = priv->adapter;
 359         struct cmd_ds_802_11_associate *passo = &cmd->params.associate;
 360         int ret = 0;
 361         struct assoc_request * assoc_req = pdata_buf;
 362         struct bss_descriptor * bss = &assoc_req->bss;
 363         u8 *pos;
 364         u16 tmpcap, tmplen;
 365         struct mrvlietypes_ssidparamset *ssid;
 366         struct mrvlietypes_phyparamset *phy;
 367         struct mrvlietypes_ssparamset *ss;
 368         struct mrvlietypes_ratesparamset *rates;
 369         struct mrvlietypes_rsnparamset *rsn;
 370
 371         lbs_deb_enter(LBS_DEB_JOIN);
 372
 373         pos = (u8 *) passo;
 374
 375         if (!adapter) {
 376                 ret = -1;
 377                 goto done;
 378         }
 379
 380         cmd->command = cpu_to_le16(CMD_802_11_ASSOCIATE);
 381
 382         memcpy(passo->peerstaaddr, bss->bssid, sizeof(passo->peerstaaddr));
 383         pos += sizeof(passo->peerstaaddr);
 384
 385         /* set the listen interval */
 386         passo->listeninterval = cpu_to_le16(adapter->listeninterval);
 387
 388         pos += sizeof(passo->capability);
 389         pos += sizeof(passo->listeninterval);
 390         pos += sizeof(passo->bcnperiod);
 391         pos += sizeof(passo->dtimperiod);
 392
 393         ssid = (struct mrvlietypes_ssidparamset *) pos;
 394         ssid->header.type = cpu_to_le16(TLV_TYPE_SSID);
 395         tmplen = bss->ssid_len;
 396         ssid->header.len = cpu_to_le16(tmplen);
 397         memcpy(ssid->ssid, bss->ssid, tmplen);
 398         pos += sizeof(ssid->header) + tmplen;
 399
 400         phy = (struct mrvlietypes_phyparamset *) pos;
 401         phy->header.type = cpu_to_le16(TLV_TYPE_PHY_DS);
 402         tmplen = sizeof(phy->fh_ds.dsparamset);
 403         phy->header.len = cpu_to_le16(tmplen);
 404         memcpy(&phy->fh_ds.dsparamset,
 405                &bss->phyparamset.dsparamset.currentchan,
 406                tmplen);
 407         pos += sizeof(phy->header) + tmplen;
 408
 409         ss = (struct mrvlietypes_ssparamset *) pos;
 410         ss->header.type = cpu_to_le16(TLV_TYPE_CF);
 411         tmplen = sizeof(ss->cf_ibss.cfparamset);
 412         ss->header.len = cpu_to_le16(tmplen);
 413         pos += sizeof(ss->header) + tmplen;
 414
 415         rates = (struct mrvlietypes_ratesparamset *) pos;
 416         rates->header.type = cpu_to_le16(TLV_TYPE_RATES);
 417         memcpy(&rates->rates, &bss->rates, MAX_RATES);
 418         tmplen = MAX_RATES;
 419         if (get_common_rates(adapter, rates->rates, &tmplen)) {
 420                 ret = -1;
 421                 goto done;
 422         }
 423         pos += sizeof(rates->header) + tmplen;
 424         rates->header.len = cpu_to_le16(tmplen);
 425         lbs_deb_join("ASSOC_CMD: num rates = %u\n", tmplen);
 426
 427         /* Copy the infra. association rates into Current BSS state structure */
 428         memset(&adapter->curbssparams.rates, 0, sizeof(adapter->curbssparams.rates));
 429         memcpy(&adapter->curbssparams.rates, &rates->rates, tmplen);
 430
 431         /* Set MSB on basic rates as the firmware requires, but _after_
 432          * copying to current bss rates.
 433          */
 434         libertas_set_basic_rate_flags(rates->rates, tmplen);
 435
 436         if (assoc_req->secinfo.WPAenabled || assoc_req->secinfo.WPA2enabled) {
 437                 rsn = (struct mrvlietypes_rsnparamset *) pos;
 438                 /* WPA_IE or WPA2_IE */
 439                 rsn->header.type = cpu_to_le16((u16) assoc_req->wpa_ie[0]);
 440                 tmplen = (u16) assoc_req->wpa_ie[1];
 441                 rsn->header.len = cpu_to_le16(tmplen);
 442                 memcpy(rsn->rsnie, &assoc_req->wpa_ie[2], tmplen);
 443                 lbs_dbg_hex("ASSOC_CMD: RSN IE", (u8 *) rsn,
 444                         sizeof(rsn->header) + tmplen);
 445                 pos += sizeof(rsn->header) + tmplen;
 446         }
 447
 448         /* update curbssparams */
 449         adapter->curbssparams.channel = bss->phyparamset.dsparamset.currentchan;
 450
 451         if (libertas_parse_dnld_countryinfo_11d(priv, bss)) {
 452                 ret = -1;
 453                 goto done;
 454         }
 455
 456         cmd->size = cpu_to_le16((u16) (pos - (u8 *) passo) + S_DS_GEN);
 457
 458         /* set the capability info */
 459         tmpcap = (bss->capability & CAPINFO_MASK);
 460         if (bss->mode == IW_MODE_INFRA)
 461                 tmpcap |= WLAN_CAPABILITY_ESS;
 462         passo->capability = cpu_to_le16(tmpcap);
 463         lbs_deb_join("ASSOC_CMD: capability=%4X CAPINFO_MASK=%4X\n",
 464                      tmpcap, CAPINFO_MASK);
 465
 466 done:
 467         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 468         return ret;
 469 }
 470
 471 int libertas_cmd_80211_ad_hoc_start(wlan_private * priv,
 472                                  struct cmd_ds_command *cmd, void *pdata_buf)
 473 {
 474         wlan_adapter *adapter = priv->adapter;
 475         struct cmd_ds_802_11_ad_hoc_start *adhs = &cmd->params.ads;
 476         int ret = 0;
 477         int cmdappendsize = 0;
 478         struct assoc_request * assoc_req = pdata_buf;
 479         u16 tmpcap = 0;
 480         size_t ratesize = 0;
 481
 482         lbs_deb_enter(LBS_DEB_JOIN);
 483
 484         if (!adapter) {
 485                 ret = -1;
 486                 goto done;
 487         }
 488
 489         cmd->command = cpu_to_le16(CMD_802_11_AD_HOC_START);
 490
 491         /*
 492          * Fill in the parameters for 2 data structures:
 493          *   1. cmd_ds_802_11_ad_hoc_start command
 494          *   2. adapter->scantable[i]
 495          *
 496          * Driver will fill up SSID, bsstype,IBSS param, Physical Param,
 497          *   probe delay, and cap info.
 498          *
 499          * Firmware will fill up beacon period, DTIM, Basic rates
 500          *   and operational rates.
 501          */
 502
 503         memset(adhs->ssid, 0, IW_ESSID_MAX_SIZE);
 504         memcpy(adhs->ssid, assoc_req->ssid, assoc_req->ssid_len);
 505
 506         lbs_deb_join("ADHOC_S_CMD: SSID '%s', ssid length %u\n",
 507                      escape_essid(assoc_req->ssid, assoc_req->ssid_len),
 508                      assoc_req->ssid_len);
 509
 510         /* set the BSS type */
 511         adhs->bsstype = CMD_BSS_TYPE_IBSS;
 512         adapter->mode = IW_MODE_ADHOC;
 513         adhs->beaconperiod = cpu_to_le16(adapter->beaconperiod);
 514
 515         /* set Physical param set */
 516 #define DS_PARA_IE_ID   3
 517 #define DS_PARA_IE_LEN  1
 518
 519         adhs->phyparamset.dsparamset.elementid = DS_PARA_IE_ID;
 520         adhs->phyparamset.dsparamset.len = DS_PARA_IE_LEN;
 521
 522         WARN_ON(!assoc_req->channel);
 523
 524         lbs_deb_join("ADHOC_S_CMD: Creating ADHOC on channel %d\n",
 525                      assoc_req->channel);
 526
 527         adhs->phyparamset.dsparamset.currentchan = assoc_req->channel;
 528
 529         /* set IBSS param set */
 530 #define IBSS_PARA_IE_ID   6
 531 #define IBSS_PARA_IE_LEN  2
 532
 533         adhs->ssparamset.ibssparamset.elementid = IBSS_PARA_IE_ID;
 534         adhs->ssparamset.ibssparamset.len = IBSS_PARA_IE_LEN;
 535         adhs->ssparamset.ibssparamset.atimwindow = cpu_to_le16(adapter->atimwindow);
 536
 537         /* set capability info */
 538         tmpcap = WLAN_CAPABILITY_IBSS;
 539         if (assoc_req->secinfo.wep_enabled) {
 540                 lbs_deb_join("ADHOC_S_CMD: WEP enabled, setting privacy on\n");
 541                 tmpcap |= WLAN_CAPABILITY_PRIVACY;
 542         } else {
 543                 lbs_deb_join("ADHOC_S_CMD: WEP disabled, setting privacy off\n");
 544         }
 545         adhs->capability = cpu_to_le16(tmpcap);
 546
 547         /* probedelay */
 548         adhs->probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME);
 549
 550         memset(adhs->rates, 0, sizeof(adhs->rates));
 551         if (adapter->adhoc_grate_enabled) {
 552                 ratesize = min(sizeof(adhs->rates), sizeof(libertas_bg_rates));
 553                 memcpy(adhs->rates, libertas_bg_rates, ratesize);
 554         } else {
 555                 ratesize = min(sizeof(adhs->rates), sizeof(adhoc_rates_b));
 556                 memcpy(adhs->rates, adhoc_rates_b, ratesize);
 557         }
 558
 559         /* Copy the ad-hoc creating rates into Current BSS state structure */
 560         memset(&adapter->curbssparams.rates, 0, sizeof(adapter->curbssparams.rates));
 561         memcpy(&adapter->curbssparams.rates, &adhs->rates, ratesize);
 562
 563         /* Set MSB on basic rates as the firmware requires, but _after_
 564          * copying to current bss rates.
 565          */
 566         libertas_set_basic_rate_flags(adhs->rates, ratesize);
 567
 568         lbs_deb_join("ADHOC_S_CMD: rates=%02x %02x %02x %02x \n",
 569                adhs->rates[0], adhs->rates[1], adhs->rates[2], adhs->rates[3]);
 570
 571         lbs_deb_join("ADHOC_S_CMD: AD HOC Start command is ready\n");
 572
 573         if (libertas_create_dnld_countryinfo_11d(priv)) {
 574                 lbs_deb_join("ADHOC_S_CMD: dnld_countryinfo_11d failed\n");
 575                 ret = -1;
 576                 goto done;
 577         }
 578
 579         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_ad_hoc_start) +
 580                                 S_DS_GEN + cmdappendsize);
 581
 582         ret = 0;
 583 done:
 584         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 585         return ret;
 586 }
 587
 588 int libertas_cmd_80211_ad_hoc_stop(wlan_private * priv,
 589                                 struct cmd_ds_command *cmd)
 590 {
 591         cmd->command = cpu_to_le16(CMD_802_11_AD_HOC_STOP);
 592         cmd->size = cpu_to_le16(S_DS_GEN);
 593
 594         return 0;
 595 }
 596
 597 int libertas_cmd_80211_ad_hoc_join(wlan_private * priv,
 598                                 struct cmd_ds_command *cmd, void *pdata_buf)
 599 {
 600         wlan_adapter *adapter = priv->adapter;
 601         struct cmd_ds_802_11_ad_hoc_join *join_cmd = &cmd->params.adj;
 602         struct assoc_request * assoc_req = pdata_buf;
 603         struct bss_descriptor *bss = &assoc_req->bss;
 604         int cmdappendsize = 0;
 605         int ret = 0;
 606         u16 ratesize = 0;
 607
 608         lbs_deb_enter(LBS_DEB_JOIN);
 609
 610         cmd->command = cpu_to_le16(CMD_802_11_AD_HOC_JOIN);
 611
 612         join_cmd->bss.type = CMD_BSS_TYPE_IBSS;
 613         join_cmd->bss.beaconperiod = cpu_to_le16(bss->beaconperiod);
 614
 615         memcpy(&join_cmd->bss.bssid, &bss->bssid, ETH_ALEN);
 616         memcpy(&join_cmd->bss.ssid, &bss->ssid, bss->ssid_len);
 617
 618         memcpy(&join_cmd->bss.phyparamset, &bss->phyparamset,
 619                sizeof(union ieeetypes_phyparamset));
 620
 621         memcpy(&join_cmd->bss.ssparamset, &bss->ssparamset,
 622                sizeof(union IEEEtypes_ssparamset));
 623
 624         join_cmd->bss.capability = cpu_to_le16(bss->capability & CAPINFO_MASK);
 625         lbs_deb_join("ADHOC_J_CMD: tmpcap=%4X CAPINFO_MASK=%4X\n",
 626                bss->capability, CAPINFO_MASK);
 627
 628         /* information on BSSID descriptor passed to FW */
 629         lbs_deb_join(
 630                "ADHOC_J_CMD: BSSID = " MAC_FMT ", SSID = '%s'\n",
 631                MAC_ARG(join_cmd->bss.bssid), join_cmd->bss.ssid);
 632
 633         /* failtimeout */
 634         join_cmd->failtimeout = cpu_to_le16(MRVDRV_ASSOCIATION_TIME_OUT);
 635
 636         /* probedelay */
 637         join_cmd->probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME);
 638
 639         adapter->curbssparams.channel = bss->channel;
 640
 641         /* Copy Data rates from the rates recorded in scan response */
 642         memset(join_cmd->bss.rates, 0, sizeof(join_cmd->bss.rates));
 643         ratesize = min_t(u16, sizeof(join_cmd->bss.rates), MAX_RATES);
 644         memcpy(join_cmd->bss.rates, bss->rates, ratesize);
 645         if (get_common_rates(adapter, join_cmd->bss.rates, &ratesize)) {
 646                 lbs_deb_join("ADHOC_J_CMD: get_common_rates returns error.\n");
 647                 ret = -1;
 648                 goto done;
 649         }
 650
 651         /* Copy the ad-hoc creating rates into Current BSS state structure */
 652         memset(&adapter->curbssparams.rates, 0, sizeof(adapter->curbssparams.rates));
 653         memcpy(&adapter->curbssparams.rates, join_cmd->bss.rates, ratesize);
 654
 655         /* Set MSB on basic rates as the firmware requires, but _after_
 656          * copying to current bss rates.
 657          */
 658         libertas_set_basic_rate_flags(join_cmd->bss.rates, ratesize);
 659
 660         join_cmd->bss.ssparamset.ibssparamset.atimwindow =
 661             cpu_to_le16(bss->atimwindow);
 662
 663         if (assoc_req->secinfo.wep_enabled) {
 664                 u16 tmp = le16_to_cpu(join_cmd->bss.capability);
 665                 tmp |= WLAN_CAPABILITY_PRIVACY;
 666                 join_cmd->bss.capability = cpu_to_le16(tmp);
 667         }
 668
 669         if (adapter->psmode == WLAN802_11POWERMODEMAX_PSP) {
 670                 /* wake up first */
 671                 __le32 Localpsmode;
 672
 673                 Localpsmode = cpu_to_le32(WLAN802_11POWERMODECAM);
 674                 ret = libertas_prepare_and_send_command(priv,
 675                                             CMD_802_11_PS_MODE,
 676                                             CMD_ACT_SET,
 677                                             0, 0, &Localpsmode);
 678
 679                 if (ret) {
 680                         ret = -1;
 681                         goto done;
 682                 }
 683         }
 684
 685         if (libertas_parse_dnld_countryinfo_11d(priv, bss)) {
 686                 ret = -1;
 687                 goto done;
 688         }
 689
 690         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_ad_hoc_join) +
 691                                 S_DS_GEN + cmdappendsize);
 692
 693 done:
 694         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 695         return ret;
 696 }
 697
 698 int libertas_ret_80211_associate(wlan_private * priv,
 699                               struct cmd_ds_command *resp)
 700 {
 701         wlan_adapter *adapter = priv->adapter;
 702         int ret = 0;
 703         union iwreq_data wrqu;
 704         struct ieeetypes_assocrsp *passocrsp;
 705         struct bss_descriptor * bss;
 706
 707         lbs_deb_enter(LBS_DEB_JOIN);
 708
 709         if (!adapter->in_progress_assoc_req) {
 710                 lbs_deb_join("ASSOC_RESP: no in-progress association request\n");
 711                 ret = -1;
 712                 goto done;
 713         }
 714         bss = &adapter->in_progress_assoc_req->bss;
 715
 716         passocrsp = (struct ieeetypes_assocrsp *) & resp->params;
 717
 718         if (le16_to_cpu(passocrsp->statuscode)) {
 719                 libertas_mac_event_disconnected(priv);
 720
 721                 lbs_deb_join("ASSOC_RESP: Association failed, status code = %d\n",
 722                              le16_to_cpu(passocrsp->statuscode));
 723
 724                 ret = -1;
 725                 goto done;
 726         }
 727
 728         lbs_dbg_hex("ASSOC_RESP:", (void *)&resp->params,
 729                 le16_to_cpu(resp->size) - S_DS_GEN);
 730
 731         /* Send a Media Connected event, according to the Spec */
 732         adapter->connect_status = LIBERTAS_CONNECTED;
 733
 734         lbs_deb_join("ASSOC_RESP: assocated to '%s'\n",
 735                      escape_essid(bss->ssid, bss->ssid_len));
 736
 737         /* Update current SSID and BSSID */
 738         memcpy(&adapter->curbssparams.ssid, &bss->ssid, IW_ESSID_MAX_SIZE);
 739         adapter->curbssparams.ssid_len = bss->ssid_len;
 740         memcpy(adapter->curbssparams.bssid, bss->bssid, ETH_ALEN);
 741
 742         lbs_deb_join("ASSOC_RESP: currentpacketfilter is %x\n",
 743                adapter->currentpacketfilter);
 744
 745         adapter->SNR[TYPE_RXPD][TYPE_AVG] = 0;
 746         adapter->NF[TYPE_RXPD][TYPE_AVG] = 0;
 747
 748         memset(adapter->rawSNR, 0x00, sizeof(adapter->rawSNR));
 749         memset(adapter->rawNF, 0x00, sizeof(adapter->rawNF));
 750         adapter->nextSNRNF = 0;
 751         adapter->numSNRNF = 0;
 752
 753         netif_carrier_on(priv->dev);
 754         netif_wake_queue(priv->dev);
 755
 756         netif_carrier_on(priv->mesh_dev);
 757         netif_wake_queue(priv->mesh_dev);
 758
 759         lbs_deb_join("ASSOC_RESP: Associated \n");
 760
 761         memcpy(wrqu.ap_addr.sa_data, adapter->curbssparams.bssid, ETH_ALEN);
 762         wrqu.ap_addr.sa_family = ARPHRD_ETHER;
 763         wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
 764
 765 done:
 766         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 767         return ret;
 768 }
 769
 770 int libertas_ret_80211_disassociate(wlan_private * priv,
 771                                  struct cmd_ds_command *resp)
 772 {
 773         lbs_deb_enter(LBS_DEB_JOIN);
 774
 775         libertas_mac_event_disconnected(priv);
 776
 777         lbs_deb_leave(LBS_DEB_JOIN);
 778         return 0;
 779 }
 780
 781 int libertas_ret_80211_ad_hoc_start(wlan_private * priv,
 782                                  struct cmd_ds_command *resp)
 783 {
 784         wlan_adapter *adapter = priv->adapter;
 785         int ret = 0;
 786         u16 command = le16_to_cpu(resp->command);
 787         u16 result = le16_to_cpu(resp->result);
 788         struct cmd_ds_802_11_ad_hoc_result *padhocresult;
 789         union iwreq_data wrqu;
 790         struct bss_descriptor *bss;
 791
 792         lbs_deb_enter(LBS_DEB_JOIN);
 793
 794         padhocresult = &resp->params.result;
 795
 796         lbs_deb_join("ADHOC_RESP: size = %d\n", le16_to_cpu(resp->size));
 797         lbs_deb_join("ADHOC_RESP: command = %x\n", command);
 798         lbs_deb_join("ADHOC_RESP: result = %x\n", result);
 799
 800         if (!adapter->in_progress_assoc_req) {
 801                 lbs_deb_join("ADHOC_RESP: no in-progress association request\n");
 802                 ret = -1;
 803                 goto done;
 804         }
 805         bss = &adapter->in_progress_assoc_req->bss;
 806
 807         /*
 808          * Join result code 0 --> SUCCESS
 809          */
 810         if (result) {
 811                 lbs_deb_join("ADHOC_RESP: failed\n");
 812                 if (adapter->connect_status == LIBERTAS_CONNECTED) {
 813                         libertas_mac_event_disconnected(priv);
 814                 }
 815                 ret = -1;
 816                 goto done;
 817         }
 818
 819         /*
 820          * Now the join cmd should be successful
 821          * If BSSID has changed use SSID to compare instead of BSSID
 822          */
 823         lbs_deb_join("ADHOC_RESP: associated to '%s'\n",
 824                      escape_essid(bss->ssid, bss->ssid_len));
 825
 826         /* Send a Media Connected event, according to the Spec */
 827         adapter->connect_status = LIBERTAS_CONNECTED;
 828
 829         if (command == CMD_RET_802_11_AD_HOC_START) {
 830                 /* Update the created network descriptor with the new BSSID */
 831                 memcpy(bss->bssid, padhocresult->bssid, ETH_ALEN);
 832         }
 833
 834         /* Set the BSSID from the joined/started descriptor */
 835         memcpy(&adapter->curbssparams.bssid, bss->bssid, ETH_ALEN);
 836
 837         /* Set the new SSID to current SSID */
 838         memcpy(&adapter->curbssparams.ssid, &bss->ssid, IW_ESSID_MAX_SIZE);
 839         adapter->curbssparams.ssid_len = bss->ssid_len;
 840
 841         netif_carrier_on(priv->dev);
 842         netif_wake_queue(priv->dev);
 843
 844         netif_carrier_on(priv->mesh_dev);
 845         netif_wake_queue(priv->mesh_dev);
 846
 847         memset(&wrqu, 0, sizeof(wrqu));
 848         memcpy(wrqu.ap_addr.sa_data, adapter->curbssparams.bssid, ETH_ALEN);
 849         wrqu.ap_addr.sa_family = ARPHRD_ETHER;
 850         wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
 851
 852         lbs_deb_join("ADHOC_RESP: - Joined/Started Ad Hoc\n");
 853         lbs_deb_join("ADHOC_RESP: channel = %d\n", adapter->curbssparams.channel);
 854         lbs_deb_join("ADHOC_RESP: BSSID = " MAC_FMT "\n",
 855                MAC_ARG(padhocresult->bssid));
 856
 857 done:
 858         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 859         return ret;
 860 }
 861
 862 int libertas_ret_80211_ad_hoc_stop(wlan_private * priv,
 863                                 struct cmd_ds_command *resp)
 864 {
 865         lbs_deb_enter(LBS_DEB_JOIN);
 866
 867         libertas_mac_event_disconnected(priv);
 868
 869         lbs_deb_leave(LBS_DEB_JOIN);
 870         return 0;
 871 }