err.no Git - linux-2.6/blob - 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 /* The firmware needs certain bits masked out of the beacon-derviced capability
  21  * field when associating/joining to BSSs.
  22  */
  23 #define CAPINFO_MASK    (~(0xda00))
  24
  25 /**
  26  *  @brief This function finds common rates between rate1 and card rates.
  27  *
  28  * It will fill common rates in rate1 as output if found.
  29  *
  30  * NOTE: Setting the MSB of the basic rates need to be taken
  31  *   care, either before or after calling this function
  32  *
  33  *  @param adapter     A pointer to struct lbs_adapter structure
  34  *  @param rate1       the buffer which keeps input and output
  35  *  @param rate1_size  the size of rate1 buffer; new size of buffer on return
  36  *
  37  *  @return            0 or -1
  38  */
  39 static int get_common_rates(struct lbs_adapter *adapter,
  40         u8 *rates,
  41         u16 *rates_size)
  42 {
  43         u8 *card_rates = lbs_bg_rates;
  44         size_t num_card_rates = sizeof(lbs_bg_rates);
  45         int ret = 0, i, j;
  46         u8 tmp[30];
  47         size_t tmp_size = 0;
  48
  49         /* For each rate in card_rates that exists in rate1, copy to tmp */
  50         for (i = 0; card_rates[i] && (i < num_card_rates); i++) {
  51                 for (j = 0; rates[j] && (j < *rates_size); j++) {
  52                         if (rates[j] == card_rates[i])
  53                                 tmp[tmp_size++] = card_rates[i];
  54                 }
  55         }
  56
  57         lbs_deb_hex(LBS_DEB_JOIN, "AP rates    ", rates, *rates_size);
  58         lbs_deb_hex(LBS_DEB_JOIN, "card rates  ", card_rates, num_card_rates);
  59         lbs_deb_hex(LBS_DEB_JOIN, "common rates", tmp, tmp_size);
  60         lbs_deb_join("Tx datarate is currently 0x%X\n", adapter->cur_rate);
  61
  62         if (!adapter->auto_rate) {
  63                 for (i = 0; i < tmp_size; i++) {
  64                         if (tmp[i] == adapter->cur_rate)
  65                                 goto done;
  66                 }
  67                 lbs_pr_alert("Previously set fixed data rate %#x isn't "
  68                        "compatible with the network.\n", adapter->cur_rate);
  69                 ret = -1;
  70                 goto done;
  71         }
  72         ret = 0;
  73
  74 done:
  75         memset(rates, 0, *rates_size);
  76         *rates_size = min_t(int, tmp_size, *rates_size);
  77         memcpy(rates, tmp, *rates_size);
  78         return ret;
  79 }
  80
  81
  82 /**
  83  *  @brief Sets the MSB on basic rates as the firmware requires
  84  *
  85  * Scan through an array and set the MSB for basic data rates.
  86  *
  87  *  @param rates     buffer of data rates
  88  *  @param len       size of buffer
  89  */
  90 static void lbs_set_basic_rate_flags(u8 *rates, size_t len)
  91 {
  92         int i;
  93
  94         for (i = 0; i < len; i++) {
  95                 if (rates[i] == 0x02 || rates[i] == 0x04 ||
  96                     rates[i] == 0x0b || rates[i] == 0x16)
  97                         rates[i] |= 0x80;
  98         }
  99 }
 100
 101 /**
 102  *  @brief Unsets the MSB on basic rates
 103  *
 104  * Scan through an array and unset the MSB for basic data rates.
 105  *
 106  *  @param rates     buffer of data rates
 107  *  @param len       size of buffer
 108  */
 109 void lbs_unset_basic_rate_flags(u8 *rates, size_t len)
 110 {
 111         int i;
 112
 113         for (i = 0; i < len; i++)
 114                 rates[i] &= 0x7f;
 115 }
 116
 117
 118 /**
 119  *  @brief Associate to a specific BSS discovered in a scan
 120  *
 121  *  @param priv      A pointer to struct lbs_private structure
 122  *  @param pbssdesc  Pointer to the BSS descriptor to associate with.
 123  *
 124  *  @return          0-success, otherwise fail
 125  */
 126 int lbs_associate(struct lbs_private *priv, struct assoc_request *assoc_req)
 127 {
 128         struct lbs_adapter *adapter = priv->adapter;
 129         int ret;
 130
 131         lbs_deb_enter(LBS_DEB_JOIN);
 132
 133         ret = lbs_prepare_and_send_command(priv, CMD_802_11_AUTHENTICATE,
 134                                     0, CMD_OPTION_WAITFORRSP,
 135                                     0, assoc_req->bss.bssid);
 136
 137         if (ret)
 138                 goto done;
 139
 140         /* set preamble to firmware */
 141         if (   (adapter->capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
 142             && (assoc_req->bss.capability & WLAN_CAPABILITY_SHORT_PREAMBLE))
 143                 adapter->preamble = CMD_TYPE_SHORT_PREAMBLE;
 144         else
 145                 adapter->preamble = CMD_TYPE_LONG_PREAMBLE;
 146
 147         lbs_set_radio_control(priv);
 148
 149         ret = lbs_prepare_and_send_command(priv, CMD_802_11_ASSOCIATE,
 150                                     0, CMD_OPTION_WAITFORRSP, 0, assoc_req);
 151
 152 done:
 153         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 154         return ret;
 155 }
 156
 157 /**
 158  *  @brief Start an Adhoc Network
 159  *
 160  *  @param priv         A pointer to struct lbs_private structure
 161  *  @param adhocssid    The ssid of the Adhoc Network
 162  *  @return             0--success, -1--fail
 163  */
 164 int lbs_start_adhoc_network(struct lbs_private *priv,
 165         struct assoc_request *assoc_req)
 166 {
 167         struct lbs_adapter *adapter = priv->adapter;
 168         int ret = 0;
 169
 170         adapter->adhoccreate = 1;
 171
 172         if (adapter->capability & WLAN_CAPABILITY_SHORT_PREAMBLE) {
 173                 lbs_deb_join("AdhocStart: Short preamble\n");
 174                 adapter->preamble = CMD_TYPE_SHORT_PREAMBLE;
 175         } else {
 176                 lbs_deb_join("AdhocStart: Long preamble\n");
 177                 adapter->preamble = CMD_TYPE_LONG_PREAMBLE;
 178         }
 179
 180         lbs_set_radio_control(priv);
 181
 182         lbs_deb_join("AdhocStart: channel = %d\n", assoc_req->channel);
 183         lbs_deb_join("AdhocStart: band = %d\n", assoc_req->band);
 184
 185         ret = lbs_prepare_and_send_command(priv, CMD_802_11_AD_HOC_START,
 186                                     0, CMD_OPTION_WAITFORRSP, 0, assoc_req);
 187
 188         return ret;
 189 }
 190
 191 /**
 192  *  @brief Join an adhoc network found in a previous scan
 193  *
 194  *  @param priv         A pointer to struct lbs_private structure
 195  *  @param pbssdesc     Pointer to a BSS descriptor found in a previous scan
 196  *                      to attempt to join
 197  *
 198  *  @return             0--success, -1--fail
 199  */
 200 int lbs_join_adhoc_network(struct lbs_private *priv,
 201         struct assoc_request *assoc_req)
 202 {
 203         struct lbs_adapter *adapter = priv->adapter;
 204         struct bss_descriptor * bss = &assoc_req->bss;
 205         int ret = 0;
 206
 207         lbs_deb_join("%s: Current SSID '%s', ssid length %u\n",
 208                      __func__,
 209                      escape_essid(adapter->curbssparams.ssid,
 210                                   adapter->curbssparams.ssid_len),
 211                      adapter->curbssparams.ssid_len);
 212         lbs_deb_join("%s: requested ssid '%s', ssid length %u\n",
 213                      __func__, escape_essid(bss->ssid, bss->ssid_len),
 214                      bss->ssid_len);
 215
 216         /* check if the requested SSID is already joined */
 217         if (   adapter->curbssparams.ssid_len
 218             && !lbs_ssid_cmp(adapter->curbssparams.ssid,
 219                                   adapter->curbssparams.ssid_len,
 220                                   bss->ssid, bss->ssid_len)
 221             && (adapter->mode == IW_MODE_ADHOC)
 222             && (adapter->connect_status == LBS_CONNECTED)) {
 223                 union iwreq_data wrqu;
 224
 225                 lbs_deb_join("ADHOC_J_CMD: New ad-hoc SSID is the same as "
 226                              "current, not attempting to re-join");
 227
 228                 /* Send the re-association event though, because the association
 229                  * request really was successful, even if just a null-op.
 230                  */
 231                 memset(&wrqu, 0, sizeof(wrqu));
 232                 memcpy(wrqu.ap_addr.sa_data, adapter->curbssparams.bssid,
 233                        ETH_ALEN);
 234                 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
 235                 wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
 236                 goto out;
 237         }
 238
 239         /* Use shortpreamble only when both creator and card supports
 240            short preamble */
 241         if (   !(bss->capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
 242             || !(adapter->capability & WLAN_CAPABILITY_SHORT_PREAMBLE)) {
 243                 lbs_deb_join("AdhocJoin: Long preamble\n");
 244                 adapter->preamble = CMD_TYPE_LONG_PREAMBLE;
 245         } else {
 246                 lbs_deb_join("AdhocJoin: Short preamble\n");
 247                 adapter->preamble = CMD_TYPE_SHORT_PREAMBLE;
 248         }
 249
 250         lbs_set_radio_control(priv);
 251
 252         lbs_deb_join("AdhocJoin: channel = %d\n", assoc_req->channel);
 253         lbs_deb_join("AdhocJoin: band = %c\n", assoc_req->band);
 254
 255         adapter->adhoccreate = 0;
 256
 257         ret = lbs_prepare_and_send_command(priv, CMD_802_11_AD_HOC_JOIN,
 258                                     0, CMD_OPTION_WAITFORRSP,
 259                                     OID_802_11_SSID, assoc_req);
 260
 261 out:
 262         return ret;
 263 }
 264
 265 int lbs_stop_adhoc_network(struct lbs_private *priv)
 266 {
 267         return lbs_prepare_and_send_command(priv, CMD_802_11_AD_HOC_STOP,
 268                                      0, CMD_OPTION_WAITFORRSP, 0, NULL);
 269 }
 270
 271 /**
 272  *  @brief Send Deauthentication Request
 273  *
 274  *  @param priv      A pointer to struct lbs_private structure
 275  *  @return          0--success, -1--fail
 276  */
 277 int lbs_send_deauthentication(struct lbs_private *priv)
 278 {
 279         return lbs_prepare_and_send_command(priv, CMD_802_11_DEAUTHENTICATE,
 280                                      0, CMD_OPTION_WAITFORRSP, 0, NULL);
 281 }
 282
 283 /**
 284  *  @brief This function prepares command of authenticate.
 285  *
 286  *  @param priv      A pointer to struct lbs_private structure
 287  *  @param cmd       A pointer to cmd_ds_command structure
 288  *  @param pdata_buf Void cast of pointer to a BSSID to authenticate with
 289  *
 290  *  @return         0 or -1
 291  */
 292 int lbs_cmd_80211_authenticate(struct lbs_private *priv,
 293                                  struct cmd_ds_command *cmd,
 294                                  void *pdata_buf)
 295 {
 296         struct lbs_adapter *adapter = priv->adapter;
 297         struct cmd_ds_802_11_authenticate *pauthenticate = &cmd->params.auth;
 298         int ret = -1;
 299         u8 *bssid = pdata_buf;
 300         DECLARE_MAC_BUF(mac);
 301
 302         lbs_deb_enter(LBS_DEB_JOIN);
 303
 304         cmd->command = cpu_to_le16(CMD_802_11_AUTHENTICATE);
 305         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_authenticate)
 306                                 + S_DS_GEN);
 307
 308         /* translate auth mode to 802.11 defined wire value */
 309         switch (adapter->secinfo.auth_mode) {
 310         case IW_AUTH_ALG_OPEN_SYSTEM:
 311                 pauthenticate->authtype = 0x00;
 312                 break;
 313         case IW_AUTH_ALG_SHARED_KEY:
 314                 pauthenticate->authtype = 0x01;
 315                 break;
 316         case IW_AUTH_ALG_LEAP:
 317                 pauthenticate->authtype = 0x80;
 318                 break;
 319         default:
 320                 lbs_deb_join("AUTH_CMD: invalid auth alg 0x%X\n",
 321                              adapter->secinfo.auth_mode);
 322                 goto out;
 323         }
 324
 325         memcpy(pauthenticate->macaddr, bssid, ETH_ALEN);
 326
 327         lbs_deb_join("AUTH_CMD: BSSID is : %s auth=0x%X\n",
 328                      print_mac(mac, bssid), pauthenticate->authtype);
 329         ret = 0;
 330
 331 out:
 332         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 333         return ret;
 334 }
 335
 336 int lbs_cmd_80211_deauthenticate(struct lbs_private *priv,
 337                                    struct cmd_ds_command *cmd)
 338 {
 339         struct lbs_adapter *adapter = priv->adapter;
 340         struct cmd_ds_802_11_deauthenticate *dauth = &cmd->params.deauth;
 341
 342         lbs_deb_enter(LBS_DEB_JOIN);
 343
 344         cmd->command = cpu_to_le16(CMD_802_11_DEAUTHENTICATE);
 345         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_deauthenticate) +
 346                              S_DS_GEN);
 347
 348         /* set AP MAC address */
 349         memmove(dauth->macaddr, adapter->curbssparams.bssid, ETH_ALEN);
 350
 351         /* Reason code 3 = Station is leaving */
 352 #define REASON_CODE_STA_LEAVING 3
 353         dauth->reasoncode = cpu_to_le16(REASON_CODE_STA_LEAVING);
 354
 355         lbs_deb_leave(LBS_DEB_JOIN);
 356         return 0;
 357 }
 358
 359 int lbs_cmd_80211_associate(struct lbs_private *priv,
 360                               struct cmd_ds_command *cmd, void *pdata_buf)
 361 {
 362         struct lbs_adapter *adapter = priv->adapter;
 363         struct cmd_ds_802_11_associate *passo = &cmd->params.associate;
 364         int ret = 0;
 365         struct assoc_request * assoc_req = pdata_buf;
 366         struct bss_descriptor * bss = &assoc_req->bss;
 367         u8 *pos;
 368         u16 tmpcap, tmplen;
 369         struct mrvlietypes_ssidparamset *ssid;
 370         struct mrvlietypes_phyparamset *phy;
 371         struct mrvlietypes_ssparamset *ss;
 372         struct mrvlietypes_ratesparamset *rates;
 373         struct mrvlietypes_rsnparamset *rsn;
 374
 375         lbs_deb_enter(LBS_DEB_JOIN);
 376
 377         pos = (u8 *) passo;
 378
 379         if (!adapter) {
 380                 ret = -1;
 381                 goto done;
 382         }
 383
 384         cmd->command = cpu_to_le16(CMD_802_11_ASSOCIATE);
 385
 386         memcpy(passo->peerstaaddr, bss->bssid, sizeof(passo->peerstaaddr));
 387         pos += sizeof(passo->peerstaaddr);
 388
 389         /* set the listen interval */
 390         passo->listeninterval = cpu_to_le16(MRVDRV_DEFAULT_LISTEN_INTERVAL);
 391
 392         pos += sizeof(passo->capability);
 393         pos += sizeof(passo->listeninterval);
 394         pos += sizeof(passo->bcnperiod);
 395         pos += sizeof(passo->dtimperiod);
 396
 397         ssid = (struct mrvlietypes_ssidparamset *) pos;
 398         ssid->header.type = cpu_to_le16(TLV_TYPE_SSID);
 399         tmplen = bss->ssid_len;
 400         ssid->header.len = cpu_to_le16(tmplen);
 401         memcpy(ssid->ssid, bss->ssid, tmplen);
 402         pos += sizeof(ssid->header) + tmplen;
 403
 404         phy = (struct mrvlietypes_phyparamset *) pos;
 405         phy->header.type = cpu_to_le16(TLV_TYPE_PHY_DS);
 406         tmplen = sizeof(phy->fh_ds.dsparamset);
 407         phy->header.len = cpu_to_le16(tmplen);
 408         memcpy(&phy->fh_ds.dsparamset,
 409                &bss->phyparamset.dsparamset.currentchan,
 410                tmplen);
 411         pos += sizeof(phy->header) + tmplen;
 412
 413         ss = (struct mrvlietypes_ssparamset *) pos;
 414         ss->header.type = cpu_to_le16(TLV_TYPE_CF);
 415         tmplen = sizeof(ss->cf_ibss.cfparamset);
 416         ss->header.len = cpu_to_le16(tmplen);
 417         pos += sizeof(ss->header) + tmplen;
 418
 419         rates = (struct mrvlietypes_ratesparamset *) pos;
 420         rates->header.type = cpu_to_le16(TLV_TYPE_RATES);
 421         memcpy(&rates->rates, &bss->rates, MAX_RATES);
 422         tmplen = MAX_RATES;
 423         if (get_common_rates(adapter, rates->rates, &tmplen)) {
 424                 ret = -1;
 425                 goto done;
 426         }
 427         pos += sizeof(rates->header) + tmplen;
 428         rates->header.len = cpu_to_le16(tmplen);
 429         lbs_deb_join("ASSOC_CMD: num rates = %u\n", tmplen);
 430
 431         /* Copy the infra. association rates into Current BSS state structure */
 432         memset(&adapter->curbssparams.rates, 0, sizeof(adapter->curbssparams.rates));
 433         memcpy(&adapter->curbssparams.rates, &rates->rates, tmplen);
 434
 435         /* Set MSB on basic rates as the firmware requires, but _after_
 436          * copying to current bss rates.
 437          */
 438         lbs_set_basic_rate_flags(rates->rates, tmplen);
 439
 440         if (assoc_req->secinfo.WPAenabled || assoc_req->secinfo.WPA2enabled) {
 441                 rsn = (struct mrvlietypes_rsnparamset *) pos;
 442                 /* WPA_IE or WPA2_IE */
 443                 rsn->header.type = cpu_to_le16((u16) assoc_req->wpa_ie[0]);
 444                 tmplen = (u16) assoc_req->wpa_ie[1];
 445                 rsn->header.len = cpu_to_le16(tmplen);
 446                 memcpy(rsn->rsnie, &assoc_req->wpa_ie[2], tmplen);
 447                 lbs_deb_hex(LBS_DEB_JOIN, "ASSOC_CMD: RSN IE", (u8 *) rsn,
 448                         sizeof(rsn->header) + tmplen);
 449                 pos += sizeof(rsn->header) + tmplen;
 450         }
 451
 452         /* update curbssparams */
 453         adapter->curbssparams.channel = bss->phyparamset.dsparamset.currentchan;
 454
 455         if (lbs_parse_dnld_countryinfo_11d(priv, bss)) {
 456                 ret = -1;
 457                 goto done;
 458         }
 459
 460         cmd->size = cpu_to_le16((u16) (pos - (u8 *) passo) + S_DS_GEN);
 461
 462         /* set the capability info */
 463         tmpcap = (bss->capability & CAPINFO_MASK);
 464         if (bss->mode == IW_MODE_INFRA)
 465                 tmpcap |= WLAN_CAPABILITY_ESS;
 466         passo->capability = cpu_to_le16(tmpcap);
 467         lbs_deb_join("ASSOC_CMD: capability=%4X CAPINFO_MASK=%4X\n",
 468                      tmpcap, CAPINFO_MASK);
 469
 470 done:
 471         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 472         return ret;
 473 }
 474
 475 int lbs_cmd_80211_ad_hoc_start(struct lbs_private *priv,
 476                                  struct cmd_ds_command *cmd, void *pdata_buf)
 477 {
 478         struct lbs_adapter *adapter = priv->adapter;
 479         struct cmd_ds_802_11_ad_hoc_start *adhs = &cmd->params.ads;
 480         int ret = 0;
 481         int cmdappendsize = 0;
 482         struct assoc_request * assoc_req = pdata_buf;
 483         u16 tmpcap = 0;
 484         size_t ratesize = 0;
 485
 486         lbs_deb_enter(LBS_DEB_JOIN);
 487
 488         if (!adapter) {
 489                 ret = -1;
 490                 goto done;
 491         }
 492
 493         cmd->command = cpu_to_le16(CMD_802_11_AD_HOC_START);
 494
 495         /*
 496          * Fill in the parameters for 2 data structures:
 497          *   1. cmd_ds_802_11_ad_hoc_start command
 498          *   2. adapter->scantable[i]
 499          *
 500          * Driver will fill up SSID, bsstype,IBSS param, Physical Param,
 501          *   probe delay, and cap info.
 502          *
 503          * Firmware will fill up beacon period, DTIM, Basic rates
 504          *   and operational rates.
 505          */
 506
 507         memset(adhs->ssid, 0, IW_ESSID_MAX_SIZE);
 508         memcpy(adhs->ssid, assoc_req->ssid, assoc_req->ssid_len);
 509
 510         lbs_deb_join("ADHOC_S_CMD: SSID '%s', ssid length %u\n",
 511                      escape_essid(assoc_req->ssid, assoc_req->ssid_len),
 512                      assoc_req->ssid_len);
 513
 514         /* set the BSS type */
 515         adhs->bsstype = CMD_BSS_TYPE_IBSS;
 516         adapter->mode = IW_MODE_ADHOC;
 517         if (adapter->beacon_period == 0)
 518                 adapter->beacon_period = MRVDRV_BEACON_INTERVAL;
 519         adhs->beaconperiod = cpu_to_le16(adapter->beacon_period);
 520
 521         /* set Physical param set */
 522 #define DS_PARA_IE_ID   3
 523 #define DS_PARA_IE_LEN  1
 524
 525         adhs->phyparamset.dsparamset.elementid = DS_PARA_IE_ID;
 526         adhs->phyparamset.dsparamset.len = DS_PARA_IE_LEN;
 527
 528         WARN_ON(!assoc_req->channel);
 529
 530         lbs_deb_join("ADHOC_S_CMD: Creating ADHOC on channel %d\n",
 531                      assoc_req->channel);
 532
 533         adhs->phyparamset.dsparamset.currentchan = assoc_req->channel;
 534
 535         /* set IBSS param set */
 536 #define IBSS_PARA_IE_ID   6
 537 #define IBSS_PARA_IE_LEN  2
 538
 539         adhs->ssparamset.ibssparamset.elementid = IBSS_PARA_IE_ID;
 540         adhs->ssparamset.ibssparamset.len = IBSS_PARA_IE_LEN;
 541         adhs->ssparamset.ibssparamset.atimwindow = 0;
 542
 543         /* set capability info */
 544         tmpcap = WLAN_CAPABILITY_IBSS;
 545         if (assoc_req->secinfo.wep_enabled) {
 546                 lbs_deb_join("ADHOC_S_CMD: WEP enabled, setting privacy on\n");
 547                 tmpcap |= WLAN_CAPABILITY_PRIVACY;
 548         } else {
 549                 lbs_deb_join("ADHOC_S_CMD: WEP disabled, setting privacy off\n");
 550         }
 551         adhs->capability = cpu_to_le16(tmpcap);
 552
 553         /* probedelay */
 554         adhs->probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME);
 555
 556         memset(adhs->rates, 0, sizeof(adhs->rates));
 557         ratesize = min(sizeof(adhs->rates), sizeof(lbs_bg_rates));
 558         memcpy(adhs->rates, lbs_bg_rates, ratesize);
 559
 560         /* Copy the ad-hoc creating rates into Current BSS state structure */
 561         memset(&adapter->curbssparams.rates, 0, sizeof(adapter->curbssparams.rates));
 562         memcpy(&adapter->curbssparams.rates, &adhs->rates, ratesize);
 563
 564         /* Set MSB on basic rates as the firmware requires, but _after_
 565          * copying to current bss rates.
 566          */
 567         lbs_set_basic_rate_flags(adhs->rates, ratesize);
 568
 569         lbs_deb_join("ADHOC_S_CMD: rates=%02x %02x %02x %02x \n",
 570                adhs->rates[0], adhs->rates[1], adhs->rates[2], adhs->rates[3]);
 571
 572         lbs_deb_join("ADHOC_S_CMD: AD HOC Start command is ready\n");
 573
 574         if (lbs_create_dnld_countryinfo_11d(priv)) {
 575                 lbs_deb_join("ADHOC_S_CMD: dnld_countryinfo_11d failed\n");
 576                 ret = -1;
 577                 goto done;
 578         }
 579
 580         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_ad_hoc_start) +
 581                                 S_DS_GEN + cmdappendsize);
 582
 583         ret = 0;
 584 done:
 585         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 586         return ret;
 587 }
 588
 589 int lbs_cmd_80211_ad_hoc_stop(struct lbs_private *priv,
 590                                 struct cmd_ds_command *cmd)
 591 {
 592         cmd->command = cpu_to_le16(CMD_802_11_AD_HOC_STOP);
 593         cmd->size = cpu_to_le16(S_DS_GEN);
 594
 595         return 0;
 596 }
 597
 598 int lbs_cmd_80211_ad_hoc_join(struct lbs_private *priv,
 599                                 struct cmd_ds_command *cmd, void *pdata_buf)
 600 {
 601         struct lbs_adapter *adapter = priv->adapter;
 602         struct cmd_ds_802_11_ad_hoc_join *join_cmd = &cmd->params.adj;
 603         struct assoc_request * assoc_req = pdata_buf;
 604         struct bss_descriptor *bss = &assoc_req->bss;
 605         int cmdappendsize = 0;
 606         int ret = 0;
 607         u16 ratesize = 0;
 608         DECLARE_MAC_BUF(mac);
 609
 610         lbs_deb_enter(LBS_DEB_JOIN);
 611
 612         cmd->command = cpu_to_le16(CMD_802_11_AD_HOC_JOIN);
 613
 614         join_cmd->bss.type = CMD_BSS_TYPE_IBSS;
 615         join_cmd->bss.beaconperiod = cpu_to_le16(bss->beaconperiod);
 616
 617         memcpy(&join_cmd->bss.bssid, &bss->bssid, ETH_ALEN);
 618         memcpy(&join_cmd->bss.ssid, &bss->ssid, bss->ssid_len);
 619
 620         memcpy(&join_cmd->bss.phyparamset, &bss->phyparamset,
 621                sizeof(union ieeetypes_phyparamset));
 622
 623         memcpy(&join_cmd->bss.ssparamset, &bss->ssparamset,
 624                sizeof(union IEEEtypes_ssparamset));
 625
 626         join_cmd->bss.capability = cpu_to_le16(bss->capability & CAPINFO_MASK);
 627         lbs_deb_join("ADHOC_J_CMD: tmpcap=%4X CAPINFO_MASK=%4X\n",
 628                bss->capability, CAPINFO_MASK);
 629
 630         /* information on BSSID descriptor passed to FW */
 631         lbs_deb_join(
 632                "ADHOC_J_CMD: BSSID = %s, SSID = '%s'\n",
 633                print_mac(mac, join_cmd->bss.bssid),
 634                join_cmd->bss.ssid);
 635
 636         /* failtimeout */
 637         join_cmd->failtimeout = cpu_to_le16(MRVDRV_ASSOCIATION_TIME_OUT);
 638
 639         /* probedelay */
 640         join_cmd->probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME);
 641
 642         adapter->curbssparams.channel = bss->channel;
 643
 644         /* Copy Data rates from the rates recorded in scan response */
 645         memset(join_cmd->bss.rates, 0, sizeof(join_cmd->bss.rates));
 646         ratesize = min_t(u16, sizeof(join_cmd->bss.rates), MAX_RATES);
 647         memcpy(join_cmd->bss.rates, bss->rates, ratesize);
 648         if (get_common_rates(adapter, join_cmd->bss.rates, &ratesize)) {
 649                 lbs_deb_join("ADHOC_J_CMD: get_common_rates returns error.\n");
 650                 ret = -1;
 651                 goto done;
 652         }
 653
 654         /* Copy the ad-hoc creating rates into Current BSS state structure */
 655         memset(&adapter->curbssparams.rates, 0, sizeof(adapter->curbssparams.rates));
 656         memcpy(&adapter->curbssparams.rates, join_cmd->bss.rates, ratesize);
 657
 658         /* Set MSB on basic rates as the firmware requires, but _after_
 659          * copying to current bss rates.
 660          */
 661         lbs_set_basic_rate_flags(join_cmd->bss.rates, ratesize);
 662
 663         join_cmd->bss.ssparamset.ibssparamset.atimwindow =
 664             cpu_to_le16(bss->atimwindow);
 665
 666         if (assoc_req->secinfo.wep_enabled) {
 667                 u16 tmp = le16_to_cpu(join_cmd->bss.capability);
 668                 tmp |= WLAN_CAPABILITY_PRIVACY;
 669                 join_cmd->bss.capability = cpu_to_le16(tmp);
 670         }
 671
 672         if (adapter->psmode == LBS802_11POWERMODEMAX_PSP) {
 673                 /* wake up first */
 674                 __le32 Localpsmode;
 675
 676                 Localpsmode = cpu_to_le32(LBS802_11POWERMODECAM);
 677                 ret = lbs_prepare_and_send_command(priv,
 678                                             CMD_802_11_PS_MODE,
 679                                             CMD_ACT_SET,
 680                                             0, 0, &Localpsmode);
 681
 682                 if (ret) {
 683                         ret = -1;
 684                         goto done;
 685                 }
 686         }
 687
 688         if (lbs_parse_dnld_countryinfo_11d(priv, bss)) {
 689                 ret = -1;
 690                 goto done;
 691         }
 692
 693         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_ad_hoc_join) +
 694                                 S_DS_GEN + cmdappendsize);
 695
 696 done:
 697         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 698         return ret;
 699 }
 700
 701 int lbs_ret_80211_associate(struct lbs_private *priv,
 702                               struct cmd_ds_command *resp)
 703 {
 704         struct lbs_adapter *adapter = priv->adapter;
 705         int ret = 0;
 706         union iwreq_data wrqu;
 707         struct ieeetypes_assocrsp *passocrsp;
 708         struct bss_descriptor * bss;
 709         u16 status_code;
 710
 711         lbs_deb_enter(LBS_DEB_JOIN);
 712
 713         if (!adapter->in_progress_assoc_req) {
 714                 lbs_deb_join("ASSOC_RESP: no in-progress association request\n");
 715                 ret = -1;
 716                 goto done;
 717         }
 718         bss = &adapter->in_progress_assoc_req->bss;
 719
 720         passocrsp = (struct ieeetypes_assocrsp *) & resp->params;
 721
 722         /*
 723          * Older FW versions map the IEEE 802.11 Status Code in the association
 724          * response to the following values returned in passocrsp->statuscode:
 725          *
 726          *    IEEE Status Code                Marvell Status Code
 727          *    0                       ->      0x0000 ASSOC_RESULT_SUCCESS
 728          *    13                      ->      0x0004 ASSOC_RESULT_AUTH_REFUSED
 729          *    14                      ->      0x0004 ASSOC_RESULT_AUTH_REFUSED
 730          *    15                      ->      0x0004 ASSOC_RESULT_AUTH_REFUSED
 731          *    16                      ->      0x0004 ASSOC_RESULT_AUTH_REFUSED
 732          *    others                  ->      0x0003 ASSOC_RESULT_REFUSED
 733          *
 734          * Other response codes:
 735          *    0x0001 -> ASSOC_RESULT_INVALID_PARAMETERS (unused)
 736          *    0x0002 -> ASSOC_RESULT_TIMEOUT (internal timer expired waiting for
 737          *                                    association response from the AP)
 738          */
 739
 740         status_code = le16_to_cpu(passocrsp->statuscode);
 741         switch (status_code) {
 742         case 0x00:
 743                 lbs_deb_join("ASSOC_RESP: Association succeeded\n");
 744                 break;
 745         case 0x01:
 746                 lbs_deb_join("ASSOC_RESP: Association failed; invalid "
 747                              "parameters (status code %d)\n", status_code);
 748                 break;
 749         case 0x02:
 750                 lbs_deb_join("ASSOC_RESP: Association failed; internal timer "
 751                              "expired while waiting for the AP (status code %d)"
 752                              "\n", status_code);
 753                 break;
 754         case 0x03:
 755                 lbs_deb_join("ASSOC_RESP: Association failed; association "
 756                              "was refused by the AP (status code %d)\n",
 757                              status_code);
 758                 break;
 759         case 0x04:
 760                 lbs_deb_join("ASSOC_RESP: Association failed; authentication "
 761                              "was refused by the AP (status code %d)\n",
 762                              status_code);
 763                 break;
 764         default:
 765                 lbs_deb_join("ASSOC_RESP: Association failed; reason unknown "
 766                              "(status code %d)\n", status_code);
 767                 break;
 768         }
 769
 770         if (status_code) {
 771                 lbs_mac_event_disconnected(priv);
 772                 ret = -1;
 773                 goto done;
 774         }
 775
 776         lbs_deb_hex(LBS_DEB_JOIN, "ASSOC_RESP", (void *)&resp->params,
 777                 le16_to_cpu(resp->size) - S_DS_GEN);
 778
 779         /* Send a Media Connected event, according to the Spec */
 780         adapter->connect_status = LBS_CONNECTED;
 781
 782         lbs_deb_join("ASSOC_RESP: assocated to '%s'\n",
 783                      escape_essid(bss->ssid, bss->ssid_len));
 784
 785         /* Update current SSID and BSSID */
 786         memcpy(&adapter->curbssparams.ssid, &bss->ssid, IW_ESSID_MAX_SIZE);
 787         adapter->curbssparams.ssid_len = bss->ssid_len;
 788         memcpy(adapter->curbssparams.bssid, bss->bssid, ETH_ALEN);
 789
 790         lbs_deb_join("ASSOC_RESP: currentpacketfilter is %x\n",
 791                adapter->currentpacketfilter);
 792
 793         adapter->SNR[TYPE_RXPD][TYPE_AVG] = 0;
 794         adapter->NF[TYPE_RXPD][TYPE_AVG] = 0;
 795
 796         memset(adapter->rawSNR, 0x00, sizeof(adapter->rawSNR));
 797         memset(adapter->rawNF, 0x00, sizeof(adapter->rawNF));
 798         adapter->nextSNRNF = 0;
 799         adapter->numSNRNF = 0;
 800
 801         netif_carrier_on(priv->dev);
 802         netif_wake_queue(priv->dev);
 803
 804
 805         memcpy(wrqu.ap_addr.sa_data, adapter->curbssparams.bssid, ETH_ALEN);
 806         wrqu.ap_addr.sa_family = ARPHRD_ETHER;
 807         wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
 808
 809 done:
 810         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 811         return ret;
 812 }
 813
 814 int lbs_ret_80211_disassociate(struct lbs_private *priv,
 815                                  struct cmd_ds_command *resp)
 816 {
 817         lbs_deb_enter(LBS_DEB_JOIN);
 818
 819         lbs_mac_event_disconnected(priv);
 820
 821         lbs_deb_leave(LBS_DEB_JOIN);
 822         return 0;
 823 }
 824
 825 int lbs_ret_80211_ad_hoc_start(struct lbs_private *priv,
 826                                  struct cmd_ds_command *resp)
 827 {
 828         struct lbs_adapter *adapter = priv->adapter;
 829         int ret = 0;
 830         u16 command = le16_to_cpu(resp->command);
 831         u16 result = le16_to_cpu(resp->result);
 832         struct cmd_ds_802_11_ad_hoc_result *padhocresult;
 833         union iwreq_data wrqu;
 834         struct bss_descriptor *bss;
 835         DECLARE_MAC_BUF(mac);
 836
 837         lbs_deb_enter(LBS_DEB_JOIN);
 838
 839         padhocresult = &resp->params.result;
 840
 841         lbs_deb_join("ADHOC_RESP: size = %d\n", le16_to_cpu(resp->size));
 842         lbs_deb_join("ADHOC_RESP: command = %x\n", command);
 843         lbs_deb_join("ADHOC_RESP: result = %x\n", result);
 844
 845         if (!adapter->in_progress_assoc_req) {
 846                 lbs_deb_join("ADHOC_RESP: no in-progress association request\n");
 847                 ret = -1;
 848                 goto done;
 849         }
 850         bss = &adapter->in_progress_assoc_req->bss;
 851
 852         /*
 853          * Join result code 0 --> SUCCESS
 854          */
 855         if (result) {
 856                 lbs_deb_join("ADHOC_RESP: failed\n");
 857                 if (adapter->connect_status == LBS_CONNECTED) {
 858                         lbs_mac_event_disconnected(priv);
 859                 }
 860                 ret = -1;
 861                 goto done;
 862         }
 863
 864         /*
 865          * Now the join cmd should be successful
 866          * If BSSID has changed use SSID to compare instead of BSSID
 867          */
 868         lbs_deb_join("ADHOC_RESP: associated to '%s'\n",
 869                      escape_essid(bss->ssid, bss->ssid_len));
 870
 871         /* Send a Media Connected event, according to the Spec */
 872         adapter->connect_status = LBS_CONNECTED;
 873
 874         if (command == CMD_RET(CMD_802_11_AD_HOC_START)) {
 875                 /* Update the created network descriptor with the new BSSID */
 876                 memcpy(bss->bssid, padhocresult->bssid, ETH_ALEN);
 877         }
 878
 879         /* Set the BSSID from the joined/started descriptor */
 880         memcpy(&adapter->curbssparams.bssid, bss->bssid, ETH_ALEN);
 881
 882         /* Set the new SSID to current SSID */
 883         memcpy(&adapter->curbssparams.ssid, &bss->ssid, IW_ESSID_MAX_SIZE);
 884         adapter->curbssparams.ssid_len = bss->ssid_len;
 885
 886         netif_carrier_on(priv->dev);
 887         netif_wake_queue(priv->dev);
 888
 889         memset(&wrqu, 0, sizeof(wrqu));
 890         memcpy(wrqu.ap_addr.sa_data, adapter->curbssparams.bssid, ETH_ALEN);
 891         wrqu.ap_addr.sa_family = ARPHRD_ETHER;
 892         wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
 893
 894         lbs_deb_join("ADHOC_RESP: - Joined/Started Ad Hoc\n");
 895         lbs_deb_join("ADHOC_RESP: channel = %d\n", adapter->curbssparams.channel);
 896         lbs_deb_join("ADHOC_RESP: BSSID = %s\n",
 897                      print_mac(mac, padhocresult->bssid));
 898
 899 done:
 900         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 901         return ret;
 902 }
 903
 904 int lbs_ret_80211_ad_hoc_stop(struct lbs_private *priv,
 905                                 struct cmd_ds_command *resp)
 906 {
 907         lbs_deb_enter(LBS_DEB_JOIN);
 908
 909         lbs_mac_event_disconnected(priv);
 910
 911         lbs_deb_leave(LBS_DEB_JOIN);
 912         return 0;
 913 }