SAFE public projects git trees. - safe/jmp/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 /* Supported rates for ad-hoc B mode */
  21 static u8 adhoc_rates_b[5] = { 0x02, 0x04, 0x0b, 0x16, 0x00 };
  22
  23 /* The firmware needs certain bits masked out of the beacon-derviced capability
  24  * field when associating/joining to BSSs.
  25  */
  26 #define CAPINFO_MASK    (~(0xda00))
  27
  28 /**
  29  *  @brief This function finds common rates between rate1 and card rates.
  30  *
  31  * It will fill common rates in rate1 as output if found.
  32  *
  33  * NOTE: Setting the MSB of the basic rates need to be taken
  34  *   care, either before or after calling this function
  35  *
  36  *  @param adapter     A pointer to wlan_adapter structure
  37  *  @param rate1       the buffer which keeps input and output
  38  *  @param rate1_size  the size of rate1 buffer; new size of buffer on return
  39  *
  40  *  @return            0 or -1
  41  */
  42 static int get_common_rates(wlan_adapter * adapter, u8 * rates, u16 *rates_size)
  43 {
  44         u8 *card_rates = libertas_bg_rates;
  45         size_t num_card_rates = sizeof(libertas_bg_rates);
  46         int ret = 0, i, j;
  47         u8 tmp[30];
  48         size_t tmp_size = 0;
  49
  50         /* For each rate in card_rates that exists in rate1, copy to tmp */
  51         for (i = 0; card_rates[i] && (i < num_card_rates); i++) {
  52                 for (j = 0; rates[j] && (j < *rates_size); j++) {
  53                         if (rates[j] == card_rates[i])
  54                                 tmp[tmp_size++] = card_rates[i];
  55                 }
  56         }
  57
  58         lbs_deb_hex(LBS_DEB_JOIN, "AP rates    ", rates, *rates_size);
  59         lbs_deb_hex(LBS_DEB_JOIN, "card rates  ", card_rates, num_card_rates);
  60         lbs_deb_hex(LBS_DEB_JOIN, "common rates", tmp, tmp_size);
  61         lbs_deb_join("Tx datarate is currently 0x%X\n", adapter->cur_rate);
  62
  63         if (!adapter->auto_rate) {
  64                 for (i = 0; i < tmp_size; i++) {
  65                         if (tmp[i] == adapter->cur_rate)
  66                                 goto done;
  67                 }
  68                 lbs_pr_alert("Previously set fixed data rate %#x isn't "
  69                        "compatible with the network.\n", adapter->cur_rate);
  70                 ret = -1;
  71                 goto done;
  72         }
  73         ret = 0;
  74
  75 done:
  76         memset(rates, 0, *rates_size);
  77         *rates_size = min_t(int, tmp_size, *rates_size);
  78         memcpy(rates, tmp, *rates_size);
  79         return ret;
  80 }
  81
  82
  83 /**
  84  *  @brief Sets the MSB on basic rates as the firmware requires
  85  *
  86  * Scan through an array and set the MSB for basic data rates.
  87  *
  88  *  @param rates     buffer of data rates
  89  *  @param len       size of buffer
  90  */
  91 static void libertas_set_basic_rate_flags(u8 * rates, size_t len)
  92 {
  93         int i;
  94
  95         for (i = 0; i < len; i++) {
  96                 if (rates[i] == 0x02 || rates[i] == 0x04 ||
  97                     rates[i] == 0x0b || rates[i] == 0x16)
  98                         rates[i] |= 0x80;
  99         }
 100 }
 101
 102 /**
 103  *  @brief Unsets the MSB on basic rates
 104  *
 105  * Scan through an array and unset the MSB for basic data rates.
 106  *
 107  *  @param rates     buffer of data rates
 108  *  @param len       size of buffer
 109  */
 110 void libertas_unset_basic_rate_flags(u8 * rates, size_t len)
 111 {
 112         int i;
 113
 114         for (i = 0; i < len; i++)
 115                 rates[i] &= 0x7f;
 116 }
 117
 118
 119 /**
 120  *  @brief Associate to a specific BSS discovered in a scan
 121  *
 122  *  @param priv      A pointer to wlan_private structure
 123  *  @param pbssdesc  Pointer to the BSS descriptor to associate with.
 124  *
 125  *  @return          0-success, otherwise fail
 126  */
 127 int wlan_associate(wlan_private * priv, struct assoc_request * assoc_req)
 128 {
 129         wlan_adapter *adapter = priv->adapter;
 130         int ret;
 131
 132         lbs_deb_enter(LBS_DEB_JOIN);
 133
 134         ret = libertas_prepare_and_send_command(priv, CMD_802_11_AUTHENTICATE,
 135                                     0, CMD_OPTION_WAITFORRSP,
 136                                     0, assoc_req->bss.bssid);
 137
 138         if (ret)
 139                 goto done;
 140
 141         /* set preamble to firmware */
 142         if (   (adapter->capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
 143             && (assoc_req->bss.capability & WLAN_CAPABILITY_SHORT_PREAMBLE))
 144                 adapter->preamble = CMD_TYPE_SHORT_PREAMBLE;
 145         else
 146                 adapter->preamble = CMD_TYPE_LONG_PREAMBLE;
 147
 148         libertas_set_radio_control(priv);
 149
 150         ret = libertas_prepare_and_send_command(priv, CMD_802_11_ASSOCIATE,
 151                                     0, CMD_OPTION_WAITFORRSP, 0, assoc_req);
 152
 153 done:
 154         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 155         return ret;
 156 }
 157
 158 /**
 159  *  @brief Start an Adhoc Network
 160  *
 161  *  @param priv         A pointer to wlan_private structure
 162  *  @param adhocssid    The ssid of the Adhoc Network
 163  *  @return             0--success, -1--fail
 164  */
 165 int libertas_start_adhoc_network(wlan_private * priv, struct assoc_request * assoc_req)
 166 {
 167         wlan_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         libertas_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 = libertas_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 wlan_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 libertas_join_adhoc_network(wlan_private * priv, struct assoc_request * assoc_req)
 201 {
 202         wlan_adapter *adapter = priv->adapter;
 203         struct bss_descriptor * bss = &assoc_req->bss;
 204         int ret = 0;
 205
 206         lbs_deb_join("%s: Current SSID '%s', ssid length %u\n",
 207                      __func__,
 208                      escape_essid(adapter->curbssparams.ssid,
 209                                   adapter->curbssparams.ssid_len),
 210                      adapter->curbssparams.ssid_len);
 211         lbs_deb_join("%s: requested ssid '%s', ssid length %u\n",
 212                      __func__, escape_essid(bss->ssid, bss->ssid_len),
 213                      bss->ssid_len);
 214
 215         /* check if the requested SSID is already joined */
 216         if (   adapter->curbssparams.ssid_len
 217             && !libertas_ssid_cmp(adapter->curbssparams.ssid,
 218                                   adapter->curbssparams.ssid_len,
 219                                   bss->ssid, bss->ssid_len)
 220             && (adapter->mode == IW_MODE_ADHOC)
 221             && (adapter->connect_status == LIBERTAS_CONNECTED)) {
 222                 union iwreq_data wrqu;
 223
 224                 lbs_deb_join("ADHOC_J_CMD: New ad-hoc SSID is the same as "
 225                              "current, not attempting to re-join");
 226
 227                 /* Send the re-association event though, because the association
 228                  * request really was successful, even if just a null-op.
 229                  */
 230                 memset(&wrqu, 0, sizeof(wrqu));
 231                 memcpy(wrqu.ap_addr.sa_data, adapter->curbssparams.bssid,
 232                        ETH_ALEN);
 233                 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
 234                 wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
 235                 goto out;
 236         }
 237
 238         /* Use shortpreamble only when both creator and card supports
 239            short preamble */
 240         if (   !(bss->capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
 241             || !(adapter->capability & WLAN_CAPABILITY_SHORT_PREAMBLE)) {
 242                 lbs_deb_join("AdhocJoin: Long preamble\n");
 243                 adapter->preamble = CMD_TYPE_LONG_PREAMBLE;
 244         } else {
 245                 lbs_deb_join("AdhocJoin: Short preamble\n");
 246                 adapter->preamble = CMD_TYPE_SHORT_PREAMBLE;
 247         }
 248
 249         libertas_set_radio_control(priv);
 250
 251         lbs_deb_join("AdhocJoin: channel = %d\n", assoc_req->channel);
 252         lbs_deb_join("AdhocJoin: band = %c\n", assoc_req->band);
 253
 254         adapter->adhoccreate = 0;
 255
 256         ret = libertas_prepare_and_send_command(priv, CMD_802_11_AD_HOC_JOIN,
 257                                     0, CMD_OPTION_WAITFORRSP,
 258                                     OID_802_11_SSID, assoc_req);
 259
 260 out:
 261         return ret;
 262 }
 263
 264 int libertas_stop_adhoc_network(wlan_private * priv)
 265 {
 266         return libertas_prepare_and_send_command(priv, CMD_802_11_AD_HOC_STOP,
 267                                      0, CMD_OPTION_WAITFORRSP, 0, NULL);
 268 }
 269
 270 /**
 271  *  @brief Send Deauthentication Request
 272  *
 273  *  @param priv      A pointer to wlan_private structure
 274  *  @return          0--success, -1--fail
 275  */
 276 int libertas_send_deauthentication(wlan_private * priv)
 277 {
 278         return libertas_prepare_and_send_command(priv, CMD_802_11_DEAUTHENTICATE,
 279                                      0, CMD_OPTION_WAITFORRSP, 0, NULL);
 280 }
 281
 282 /**
 283  *  @brief This function prepares command of authenticate.
 284  *
 285  *  @param priv      A pointer to wlan_private structure
 286  *  @param cmd       A pointer to cmd_ds_command structure
 287  *  @param pdata_buf Void cast of pointer to a BSSID to authenticate with
 288  *
 289  *  @return         0 or -1
 290  */
 291 int libertas_cmd_80211_authenticate(wlan_private * priv,
 292                                  struct cmd_ds_command *cmd,
 293                                  void *pdata_buf)
 294 {
 295         wlan_adapter *adapter = priv->adapter;
 296         struct cmd_ds_802_11_authenticate *pauthenticate = &cmd->params.auth;
 297         int ret = -1;
 298         u8 *bssid = pdata_buf;
 299
 300         lbs_deb_enter(LBS_DEB_JOIN);
 301
 302         cmd->command = cpu_to_le16(CMD_802_11_AUTHENTICATE);
 303         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_authenticate)
 304                                 + S_DS_GEN);
 305
 306         /* translate auth mode to 802.11 defined wire value */
 307         switch (adapter->secinfo.auth_mode) {
 308         case IW_AUTH_ALG_OPEN_SYSTEM:
 309                 pauthenticate->authtype = 0x00;
 310                 break;
 311         case IW_AUTH_ALG_SHARED_KEY:
 312                 pauthenticate->authtype = 0x01;
 313                 break;
 314         case IW_AUTH_ALG_LEAP:
 315                 pauthenticate->authtype = 0x80;
 316                 break;
 317         default:
 318                 lbs_deb_join("AUTH_CMD: invalid auth alg 0x%X\n",
 319                              adapter->secinfo.auth_mode);
 320                 goto out;
 321         }
 322
 323         memcpy(pauthenticate->macaddr, bssid, ETH_ALEN);
 324
 325         lbs_deb_join("AUTH_CMD: BSSID is : " MAC_FMT " auth=0x%X\n",
 326                      MAC_ARG(bssid), pauthenticate->authtype);
 327         ret = 0;
 328
 329 out:
 330         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 331         return ret;
 332 }
 333
 334 int libertas_cmd_80211_deauthenticate(wlan_private * priv,
 335                                    struct cmd_ds_command *cmd)
 336 {
 337         wlan_adapter *adapter = priv->adapter;
 338         struct cmd_ds_802_11_deauthenticate *dauth = &cmd->params.deauth;
 339
 340         lbs_deb_enter(LBS_DEB_JOIN);
 341
 342         cmd->command = cpu_to_le16(CMD_802_11_DEAUTHENTICATE);
 343         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_deauthenticate) +
 344                              S_DS_GEN);
 345
 346         /* set AP MAC address */
 347         memmove(dauth->macaddr, adapter->curbssparams.bssid, ETH_ALEN);
 348
 349         /* Reason code 3 = Station is leaving */
 350 #define REASON_CODE_STA_LEAVING 3
 351         dauth->reasoncode = cpu_to_le16(REASON_CODE_STA_LEAVING);
 352
 353         lbs_deb_leave(LBS_DEB_JOIN);
 354         return 0;
 355 }
 356
 357 int libertas_cmd_80211_associate(wlan_private * priv,
 358                               struct cmd_ds_command *cmd, void *pdata_buf)
 359 {
 360         wlan_adapter *adapter = priv->adapter;
 361         struct cmd_ds_802_11_associate *passo = &cmd->params.associate;
 362         int ret = 0;
 363         struct assoc_request * assoc_req = pdata_buf;
 364         struct bss_descriptor * bss = &assoc_req->bss;
 365         u8 *pos;
 366         u16 tmpcap, tmplen;
 367         struct mrvlietypes_ssidparamset *ssid;
 368         struct mrvlietypes_phyparamset *phy;
 369         struct mrvlietypes_ssparamset *ss;
 370         struct mrvlietypes_ratesparamset *rates;
 371         struct mrvlietypes_rsnparamset *rsn;
 372
 373         lbs_deb_enter(LBS_DEB_JOIN);
 374
 375         pos = (u8 *) passo;
 376
 377         if (!adapter) {
 378                 ret = -1;
 379                 goto done;
 380         }
 381
 382         cmd->command = cpu_to_le16(CMD_802_11_ASSOCIATE);
 383
 384         memcpy(passo->peerstaaddr, bss->bssid, sizeof(passo->peerstaaddr));
 385         pos += sizeof(passo->peerstaaddr);
 386
 387         /* set the listen interval */
 388         passo->listeninterval = cpu_to_le16(MRVDRV_DEFAULT_LISTEN_INTERVAL);
 389
 390         pos += sizeof(passo->capability);
 391         pos += sizeof(passo->listeninterval);
 392         pos += sizeof(passo->bcnperiod);
 393         pos += sizeof(passo->dtimperiod);
 394
 395         ssid = (struct mrvlietypes_ssidparamset *) pos;
 396         ssid->header.type = cpu_to_le16(TLV_TYPE_SSID);
 397         tmplen = bss->ssid_len;
 398         ssid->header.len = cpu_to_le16(tmplen);
 399         memcpy(ssid->ssid, bss->ssid, tmplen);
 400         pos += sizeof(ssid->header) + tmplen;
 401
 402         phy = (struct mrvlietypes_phyparamset *) pos;
 403         phy->header.type = cpu_to_le16(TLV_TYPE_PHY_DS);
 404         tmplen = sizeof(phy->fh_ds.dsparamset);
 405         phy->header.len = cpu_to_le16(tmplen);
 406         memcpy(&phy->fh_ds.dsparamset,
 407                &bss->phyparamset.dsparamset.currentchan,
 408                tmplen);
 409         pos += sizeof(phy->header) + tmplen;
 410
 411         ss = (struct mrvlietypes_ssparamset *) pos;
 412         ss->header.type = cpu_to_le16(TLV_TYPE_CF);
 413         tmplen = sizeof(ss->cf_ibss.cfparamset);
 414         ss->header.len = cpu_to_le16(tmplen);
 415         pos += sizeof(ss->header) + tmplen;
 416
 417         rates = (struct mrvlietypes_ratesparamset *) pos;
 418         rates->header.type = cpu_to_le16(TLV_TYPE_RATES);
 419         memcpy(&rates->rates, &bss->rates, MAX_RATES);
 420         tmplen = MAX_RATES;
 421         if (get_common_rates(adapter, rates->rates, &tmplen)) {
 422                 ret = -1;
 423                 goto done;
 424         }
 425         pos += sizeof(rates->header) + tmplen;
 426         rates->header.len = cpu_to_le16(tmplen);
 427         lbs_deb_join("ASSOC_CMD: num rates = %u\n", tmplen);
 428
 429         /* Copy the infra. association rates into Current BSS state structure */
 430         memset(&adapter->curbssparams.rates, 0, sizeof(adapter->curbssparams.rates));
 431         memcpy(&adapter->curbssparams.rates, &rates->rates, tmplen);
 432
 433         /* Set MSB on basic rates as the firmware requires, but _after_
 434          * copying to current bss rates.
 435          */
 436         libertas_set_basic_rate_flags(rates->rates, tmplen);
 437
 438         if (assoc_req->secinfo.WPAenabled || assoc_req->secinfo.WPA2enabled) {
 439                 rsn = (struct mrvlietypes_rsnparamset *) pos;
 440                 /* WPA_IE or WPA2_IE */
 441                 rsn->header.type = cpu_to_le16((u16) assoc_req->wpa_ie[0]);
 442                 tmplen = (u16) assoc_req->wpa_ie[1];
 443                 rsn->header.len = cpu_to_le16(tmplen);
 444                 memcpy(rsn->rsnie, &assoc_req->wpa_ie[2], tmplen);
 445                 lbs_deb_hex(LBS_DEB_JOIN, "ASSOC_CMD: RSN IE", (u8 *) rsn,
 446                         sizeof(rsn->header) + tmplen);
 447                 pos += sizeof(rsn->header) + tmplen;
 448         }
 449
 450         /* update curbssparams */
 451         adapter->curbssparams.channel = bss->phyparamset.dsparamset.currentchan;
 452
 453         if (libertas_parse_dnld_countryinfo_11d(priv, bss)) {
 454                 ret = -1;
 455                 goto done;
 456         }
 457
 458         cmd->size = cpu_to_le16((u16) (pos - (u8 *) passo) + S_DS_GEN);
 459
 460         /* set the capability info */
 461         tmpcap = (bss->capability & CAPINFO_MASK);
 462         if (bss->mode == IW_MODE_INFRA)
 463                 tmpcap |= WLAN_CAPABILITY_ESS;
 464         passo->capability = cpu_to_le16(tmpcap);
 465         lbs_deb_join("ASSOC_CMD: capability=%4X CAPINFO_MASK=%4X\n",
 466                      tmpcap, CAPINFO_MASK);
 467
 468 done:
 469         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 470         return ret;
 471 }
 472
 473 int libertas_cmd_80211_ad_hoc_start(wlan_private * priv,
 474                                  struct cmd_ds_command *cmd, void *pdata_buf)
 475 {
 476         wlan_adapter *adapter = priv->adapter;
 477         struct cmd_ds_802_11_ad_hoc_start *adhs = &cmd->params.ads;
 478         int ret = 0;
 479         int cmdappendsize = 0;
 480         struct assoc_request * assoc_req = pdata_buf;
 481         u16 tmpcap = 0;
 482         size_t ratesize = 0;
 483
 484         lbs_deb_enter(LBS_DEB_JOIN);
 485
 486         if (!adapter) {
 487                 ret = -1;
 488                 goto done;
 489         }
 490
 491         cmd->command = cpu_to_le16(CMD_802_11_AD_HOC_START);
 492
 493         /*
 494          * Fill in the parameters for 2 data structures:
 495          *   1. cmd_ds_802_11_ad_hoc_start command
 496          *   2. adapter->scantable[i]
 497          *
 498          * Driver will fill up SSID, bsstype,IBSS param, Physical Param,
 499          *   probe delay, and cap info.
 500          *
 501          * Firmware will fill up beacon period, DTIM, Basic rates
 502          *   and operational rates.
 503          */
 504
 505         memset(adhs->ssid, 0, IW_ESSID_MAX_SIZE);
 506         memcpy(adhs->ssid, assoc_req->ssid, assoc_req->ssid_len);
 507
 508         lbs_deb_join("ADHOC_S_CMD: SSID '%s', ssid length %u\n",
 509                      escape_essid(assoc_req->ssid, assoc_req->ssid_len),
 510                      assoc_req->ssid_len);
 511
 512         /* set the BSS type */
 513         adhs->bsstype = CMD_BSS_TYPE_IBSS;
 514         adapter->mode = IW_MODE_ADHOC;
 515         adhs->beaconperiod = cpu_to_le16(MRVDRV_BEACON_INTERVAL);
 516
 517         /* set Physical param set */
 518 #define DS_PARA_IE_ID   3
 519 #define DS_PARA_IE_LEN  1
 520
 521         adhs->phyparamset.dsparamset.elementid = DS_PARA_IE_ID;
 522         adhs->phyparamset.dsparamset.len = DS_PARA_IE_LEN;
 523
 524         WARN_ON(!assoc_req->channel);
 525
 526         lbs_deb_join("ADHOC_S_CMD: Creating ADHOC on channel %d\n",
 527                      assoc_req->channel);
 528
 529         adhs->phyparamset.dsparamset.currentchan = assoc_req->channel;
 530
 531         /* set IBSS param set */
 532 #define IBSS_PARA_IE_ID   6
 533 #define IBSS_PARA_IE_LEN  2
 534
 535         adhs->ssparamset.ibssparamset.elementid = IBSS_PARA_IE_ID;
 536         adhs->ssparamset.ibssparamset.len = IBSS_PARA_IE_LEN;
 537         adhs->ssparamset.ibssparamset.atimwindow = 0;
 538
 539         /* set capability info */
 540         tmpcap = WLAN_CAPABILITY_IBSS;
 541         if (assoc_req->secinfo.wep_enabled) {
 542                 lbs_deb_join("ADHOC_S_CMD: WEP enabled, setting privacy on\n");
 543                 tmpcap |= WLAN_CAPABILITY_PRIVACY;
 544         } else {
 545                 lbs_deb_join("ADHOC_S_CMD: WEP disabled, setting privacy off\n");
 546         }
 547         adhs->capability = cpu_to_le16(tmpcap);
 548
 549         /* probedelay */
 550         adhs->probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME);
 551
 552         memset(adhs->rates, 0, sizeof(adhs->rates));
 553         ratesize = min(sizeof(adhs->rates), sizeof(adhoc_rates_b));
 554         memcpy(adhs->rates, adhoc_rates_b, ratesize);
 555
 556         /* Copy the ad-hoc creating rates into Current BSS state structure */
 557         memset(&adapter->curbssparams.rates, 0, sizeof(adapter->curbssparams.rates));
 558         memcpy(&adapter->curbssparams.rates, &adhs->rates, ratesize);
 559
 560         /* Set MSB on basic rates as the firmware requires, but _after_
 561          * copying to current bss rates.
 562          */
 563         libertas_set_basic_rate_flags(adhs->rates, ratesize);
 564
 565         lbs_deb_join("ADHOC_S_CMD: rates=%02x %02x %02x %02x \n",
 566                adhs->rates[0], adhs->rates[1], adhs->rates[2], adhs->rates[3]);
 567
 568         lbs_deb_join("ADHOC_S_CMD: AD HOC Start command is ready\n");
 569
 570         if (libertas_create_dnld_countryinfo_11d(priv)) {
 571                 lbs_deb_join("ADHOC_S_CMD: dnld_countryinfo_11d failed\n");
 572                 ret = -1;
 573                 goto done;
 574         }
 575
 576         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_ad_hoc_start) +
 577                                 S_DS_GEN + cmdappendsize);
 578
 579         ret = 0;
 580 done:
 581         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 582         return ret;
 583 }
 584
 585 int libertas_cmd_80211_ad_hoc_stop(wlan_private * priv,
 586                                 struct cmd_ds_command *cmd)
 587 {
 588         cmd->command = cpu_to_le16(CMD_802_11_AD_HOC_STOP);
 589         cmd->size = cpu_to_le16(S_DS_GEN);
 590
 591         return 0;
 592 }
 593
 594 int libertas_cmd_80211_ad_hoc_join(wlan_private * priv,
 595                                 struct cmd_ds_command *cmd, void *pdata_buf)
 596 {
 597         wlan_adapter *adapter = priv->adapter;
 598         struct cmd_ds_802_11_ad_hoc_join *join_cmd = &cmd->params.adj;
 599         struct assoc_request * assoc_req = pdata_buf;
 600         struct bss_descriptor *bss = &assoc_req->bss;
 601         int cmdappendsize = 0;
 602         int ret = 0;
 603         u16 ratesize = 0;
 604
 605         lbs_deb_enter(LBS_DEB_JOIN);
 606
 607         cmd->command = cpu_to_le16(CMD_802_11_AD_HOC_JOIN);
 608
 609         join_cmd->bss.type = CMD_BSS_TYPE_IBSS;
 610         join_cmd->bss.beaconperiod = cpu_to_le16(bss->beaconperiod);
 611
 612         memcpy(&join_cmd->bss.bssid, &bss->bssid, ETH_ALEN);
 613         memcpy(&join_cmd->bss.ssid, &bss->ssid, bss->ssid_len);
 614
 615         memcpy(&join_cmd->bss.phyparamset, &bss->phyparamset,
 616                sizeof(union ieeetypes_phyparamset));
 617
 618         memcpy(&join_cmd->bss.ssparamset, &bss->ssparamset,
 619                sizeof(union IEEEtypes_ssparamset));
 620
 621         join_cmd->bss.capability = cpu_to_le16(bss->capability & CAPINFO_MASK);
 622         lbs_deb_join("ADHOC_J_CMD: tmpcap=%4X CAPINFO_MASK=%4X\n",
 623                bss->capability, CAPINFO_MASK);
 624
 625         /* information on BSSID descriptor passed to FW */
 626         lbs_deb_join(
 627                "ADHOC_J_CMD: BSSID = " MAC_FMT ", SSID = '%s'\n",
 628                MAC_ARG(join_cmd->bss.bssid), join_cmd->bss.ssid);
 629
 630         /* failtimeout */
 631         join_cmd->failtimeout = cpu_to_le16(MRVDRV_ASSOCIATION_TIME_OUT);
 632
 633         /* probedelay */
 634         join_cmd->probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME);
 635
 636         adapter->curbssparams.channel = bss->channel;
 637
 638         /* Copy Data rates from the rates recorded in scan response */
 639         memset(join_cmd->bss.rates, 0, sizeof(join_cmd->bss.rates));
 640         ratesize = min_t(u16, sizeof(join_cmd->bss.rates), MAX_RATES);
 641         memcpy(join_cmd->bss.rates, bss->rates, ratesize);
 642         if (get_common_rates(adapter, join_cmd->bss.rates, &ratesize)) {
 643                 lbs_deb_join("ADHOC_J_CMD: get_common_rates returns error.\n");
 644                 ret = -1;
 645                 goto done;
 646         }
 647
 648         /* Copy the ad-hoc creating rates into Current BSS state structure */
 649         memset(&adapter->curbssparams.rates, 0, sizeof(adapter->curbssparams.rates));
 650         memcpy(&adapter->curbssparams.rates, join_cmd->bss.rates, ratesize);
 651
 652         /* Set MSB on basic rates as the firmware requires, but _after_
 653          * copying to current bss rates.
 654          */
 655         libertas_set_basic_rate_flags(join_cmd->bss.rates, ratesize);
 656
 657         join_cmd->bss.ssparamset.ibssparamset.atimwindow =
 658             cpu_to_le16(bss->atimwindow);
 659
 660         if (assoc_req->secinfo.wep_enabled) {
 661                 u16 tmp = le16_to_cpu(join_cmd->bss.capability);
 662                 tmp |= WLAN_CAPABILITY_PRIVACY;
 663                 join_cmd->bss.capability = cpu_to_le16(tmp);
 664         }
 665
 666         if (adapter->psmode == WLAN802_11POWERMODEMAX_PSP) {
 667                 /* wake up first */
 668                 __le32 Localpsmode;
 669
 670                 Localpsmode = cpu_to_le32(WLAN802_11POWERMODECAM);
 671                 ret = libertas_prepare_and_send_command(priv,
 672                                             CMD_802_11_PS_MODE,
 673                                             CMD_ACT_SET,
 674                                             0, 0, &Localpsmode);
 675
 676                 if (ret) {
 677                         ret = -1;
 678                         goto done;
 679                 }
 680         }
 681
 682         if (libertas_parse_dnld_countryinfo_11d(priv, bss)) {
 683                 ret = -1;
 684                 goto done;
 685         }
 686
 687         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_ad_hoc_join) +
 688                                 S_DS_GEN + cmdappendsize);
 689
 690 done:
 691         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 692         return ret;
 693 }
 694
 695 int libertas_ret_80211_associate(wlan_private * priv,
 696                               struct cmd_ds_command *resp)
 697 {
 698         wlan_adapter *adapter = priv->adapter;
 699         int ret = 0;
 700         union iwreq_data wrqu;
 701         struct ieeetypes_assocrsp *passocrsp;
 702         struct bss_descriptor * bss;
 703         u16 status_code;
 704
 705         lbs_deb_enter(LBS_DEB_JOIN);
 706
 707         if (!adapter->in_progress_assoc_req) {
 708                 lbs_deb_join("ASSOC_RESP: no in-progress association request\n");
 709                 ret = -1;
 710                 goto done;
 711         }
 712         bss = &adapter->in_progress_assoc_req->bss;
 713
 714         passocrsp = (struct ieeetypes_assocrsp *) & resp->params;
 715
 716         /*
 717          * Older FW versions map the IEEE 802.11 Status Code in the association
 718          * response to the following values returned in passocrsp->statuscode:
 719          *
 720          *    IEEE Status Code                Marvell Status Code
 721          *    0                       ->      0x0000 ASSOC_RESULT_SUCCESS
 722          *    13                      ->      0x0004 ASSOC_RESULT_AUTH_REFUSED
 723          *    14                      ->      0x0004 ASSOC_RESULT_AUTH_REFUSED
 724          *    15                      ->      0x0004 ASSOC_RESULT_AUTH_REFUSED
 725          *    16                      ->      0x0004 ASSOC_RESULT_AUTH_REFUSED
 726          *    others                  ->      0x0003 ASSOC_RESULT_REFUSED
 727          *
 728          * Other response codes:
 729          *    0x0001 -> ASSOC_RESULT_INVALID_PARAMETERS (unused)
 730          *    0x0002 -> ASSOC_RESULT_TIMEOUT (internal timer expired waiting for
 731          *                                    association response from the AP)
 732          */
 733
 734         status_code = le16_to_cpu(passocrsp->statuscode);
 735         switch (status_code) {
 736         case 0x00:
 737                 lbs_deb_join("ASSOC_RESP: Association succeeded\n");
 738                 break;
 739         case 0x01:
 740                 lbs_deb_join("ASSOC_RESP: Association failed; invalid "
 741                              "parameters (status code %d)\n", status_code);
 742                 break;
 743         case 0x02:
 744                 lbs_deb_join("ASSOC_RESP: Association failed; internal timer "
 745                              "expired while waiting for the AP (status code %d)"
 746                              "\n", status_code);
 747                 break;
 748         case 0x03:
 749                 lbs_deb_join("ASSOC_RESP: Association failed; association "
 750                              "was refused by the AP (status code %d)\n",
 751                              status_code);
 752                 break;
 753         case 0x04:
 754                 lbs_deb_join("ASSOC_RESP: Association failed; authentication "
 755                              "was refused by the AP (status code %d)\n",
 756                              status_code);
 757                 break;
 758         default:
 759                 lbs_deb_join("ASSOC_RESP: Association failed; reason unknown "
 760                              "(status code %d)\n", status_code);
 761                 break;
 762         }
 763
 764         if (status_code) {
 765                 libertas_mac_event_disconnected(priv);
 766                 ret = -1;
 767                 goto done;
 768         }
 769
 770         lbs_deb_hex(LBS_DEB_JOIN, "ASSOC_RESP", (void *)&resp->params,
 771                 le16_to_cpu(resp->size) - S_DS_GEN);
 772
 773         /* Send a Media Connected event, according to the Spec */
 774         adapter->connect_status = LIBERTAS_CONNECTED;
 775
 776         lbs_deb_join("ASSOC_RESP: assocated to '%s'\n",
 777                      escape_essid(bss->ssid, bss->ssid_len));
 778
 779         /* Update current SSID and BSSID */
 780         memcpy(&adapter->curbssparams.ssid, &bss->ssid, IW_ESSID_MAX_SIZE);
 781         adapter->curbssparams.ssid_len = bss->ssid_len;
 782         memcpy(adapter->curbssparams.bssid, bss->bssid, ETH_ALEN);
 783
 784         lbs_deb_join("ASSOC_RESP: currentpacketfilter is %x\n",
 785                adapter->currentpacketfilter);
 786
 787         adapter->SNR[TYPE_RXPD][TYPE_AVG] = 0;
 788         adapter->NF[TYPE_RXPD][TYPE_AVG] = 0;
 789
 790         memset(adapter->rawSNR, 0x00, sizeof(adapter->rawSNR));
 791         memset(adapter->rawNF, 0x00, sizeof(adapter->rawNF));
 792         adapter->nextSNRNF = 0;
 793         adapter->numSNRNF = 0;
 794
 795         netif_carrier_on(priv->dev);
 796         netif_wake_queue(priv->dev);
 797
 798         if (priv->mesh_dev) {
 799                 netif_carrier_on(priv->mesh_dev);
 800                 netif_wake_queue(priv->mesh_dev);
 801         }
 802
 803         lbs_deb_join("ASSOC_RESP: Associated \n");
 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 libertas_ret_80211_disassociate(wlan_private * priv,
 815                                  struct cmd_ds_command *resp)
 816 {
 817         lbs_deb_enter(LBS_DEB_JOIN);
 818
 819         libertas_mac_event_disconnected(priv);
 820
 821         lbs_deb_leave(LBS_DEB_JOIN);
 822         return 0;
 823 }
 824
 825 int libertas_ret_80211_ad_hoc_start(wlan_private * priv,
 826                                  struct cmd_ds_command *resp)
 827 {
 828         wlan_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
 836         lbs_deb_enter(LBS_DEB_JOIN);
 837
 838         padhocresult = &resp->params.result;
 839
 840         lbs_deb_join("ADHOC_RESP: size = %d\n", le16_to_cpu(resp->size));
 841         lbs_deb_join("ADHOC_RESP: command = %x\n", command);
 842         lbs_deb_join("ADHOC_RESP: result = %x\n", result);
 843
 844         if (!adapter->in_progress_assoc_req) {
 845                 lbs_deb_join("ADHOC_RESP: no in-progress association request\n");
 846                 ret = -1;
 847                 goto done;
 848         }
 849         bss = &adapter->in_progress_assoc_req->bss;
 850
 851         /*
 852          * Join result code 0 --> SUCCESS
 853          */
 854         if (result) {
 855                 lbs_deb_join("ADHOC_RESP: failed\n");
 856                 if (adapter->connect_status == LIBERTAS_CONNECTED) {
 857                         libertas_mac_event_disconnected(priv);
 858                 }
 859                 ret = -1;
 860                 goto done;
 861         }
 862
 863         /*
 864          * Now the join cmd should be successful
 865          * If BSSID has changed use SSID to compare instead of BSSID
 866          */
 867         lbs_deb_join("ADHOC_RESP: associated to '%s'\n",
 868                      escape_essid(bss->ssid, bss->ssid_len));
 869
 870         /* Send a Media Connected event, according to the Spec */
 871         adapter->connect_status = LIBERTAS_CONNECTED;
 872
 873         if (command == CMD_RET(CMD_802_11_AD_HOC_START)) {
 874                 /* Update the created network descriptor with the new BSSID */
 875                 memcpy(bss->bssid, padhocresult->bssid, ETH_ALEN);
 876         }
 877
 878         /* Set the BSSID from the joined/started descriptor */
 879         memcpy(&adapter->curbssparams.bssid, bss->bssid, ETH_ALEN);
 880
 881         /* Set the new SSID to current SSID */
 882         memcpy(&adapter->curbssparams.ssid, &bss->ssid, IW_ESSID_MAX_SIZE);
 883         adapter->curbssparams.ssid_len = bss->ssid_len;
 884
 885         netif_carrier_on(priv->dev);
 886         netif_wake_queue(priv->dev);
 887
 888         if (priv->mesh_dev) {
 889                 netif_carrier_on(priv->mesh_dev);
 890                 netif_wake_queue(priv->mesh_dev);
 891         }
 892
 893         memset(&wrqu, 0, sizeof(wrqu));
 894         memcpy(wrqu.ap_addr.sa_data, adapter->curbssparams.bssid, ETH_ALEN);
 895         wrqu.ap_addr.sa_family = ARPHRD_ETHER;
 896         wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
 897
 898         lbs_deb_join("ADHOC_RESP: - Joined/Started Ad Hoc\n");
 899         lbs_deb_join("ADHOC_RESP: channel = %d\n", adapter->curbssparams.channel);
 900         lbs_deb_join("ADHOC_RESP: BSSID = " MAC_FMT "\n",
 901                MAC_ARG(padhocresult->bssid));
 902
 903 done:
 904         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 905         return ret;
 906 }
 907
 908 int libertas_ret_80211_ad_hoc_stop(wlan_private * priv,
 909                                 struct cmd_ds_command *resp)
 910 {
 911         lbs_deb_enter(LBS_DEB_JOIN);
 912
 913         libertas_mac_event_disconnected(priv);
 914
 915         lbs_deb_leave(LBS_DEB_JOIN);
 916         return 0;
 917 }