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
  11 #include <net/iw_handler.h>
  12
  13 #include "host.h"
  14 #include "decl.h"
  15 #include "join.h"
  16 #include "dev.h"
  17
  18 #define AD_HOC_CAP_PRIVACY_ON 1
  19
  20 /**
  21  *  @brief This function finds out the common rates between rate1 and rate2.
  22  *
  23  * It will fill common rates in rate1 as output if found.
  24  *
  25  * NOTE: Setting the MSB of the basic rates need to be taken
  26  *   care, either before or after calling this function
  27  *
  28  *  @param adapter     A pointer to wlan_adapter structure
  29  *  @param rate1       the buffer which keeps input and output
  30  *  @param rate1_size  the size of rate1 buffer
  31  *  @param rate2       the buffer which keeps rate2
  32  *  @param rate2_size  the size of rate2 buffer.
  33  *
  34  *  @return            0 or -1
  35  */
  36 static int get_common_rates(wlan_adapter * adapter, u8 * rate1,
  37                             int rate1_size, u8 * rate2, int rate2_size)
  38 {
  39         u8 *ptr = rate1;
  40         int ret = 0;
  41         u8 tmp[30];
  42         int i;
  43
  44         memset(&tmp, 0, sizeof(tmp));
  45         memcpy(&tmp, rate1, min_t(size_t, rate1_size, sizeof(tmp)));
  46         memset(rate1, 0, rate1_size);
  47
  48         /* Mask the top bit of the original values */
  49         for (i = 0; tmp[i] && i < sizeof(tmp); i++)
  50                 tmp[i] &= 0x7F;
  51
  52         for (i = 0; rate2[i] && i < rate2_size; i++) {
  53                 /* Check for Card Rate in tmp, excluding the top bit */
  54                 if (strchr(tmp, rate2[i] & 0x7F)) {
  55                         /* values match, so copy the Card Rate to rate1 */
  56                         *rate1++ = rate2[i];
  57                 }
  58         }
  59
  60         lbs_dbg_hex("rate1 (AP) rates:", tmp, sizeof(tmp));
  61         lbs_dbg_hex("rate2 (Card) rates:", rate2, rate2_size);
  62         lbs_dbg_hex("Common rates:", ptr, rate1_size);
  63         lbs_deb_join("Tx datarate is set to 0x%X\n", adapter->datarate);
  64
  65         if (!adapter->is_datarate_auto) {
  66                 while (*ptr) {
  67                         if ((*ptr & 0x7f) == adapter->datarate) {
  68                                 ret = 0;
  69                                 goto done;
  70                         }
  71                         ptr++;
  72                 }
  73                 lbs_pr_alert( "Previously set fixed data rate %#x isn't "
  74                        "compatible with the network.\n", adapter->datarate);
  75
  76                 ret = -1;
  77                 goto done;
  78         }
  79
  80         ret = 0;
  81 done:
  82         return ret;
  83 }
  84
  85 int libertas_send_deauth(wlan_private * priv)
  86 {
  87         wlan_adapter *adapter = priv->adapter;
  88         int ret = 0;
  89
  90         if (adapter->mode == IW_MODE_INFRA &&
  91             adapter->connect_status == libertas_connected)
  92                 ret = libertas_send_deauthentication(priv);
  93         else
  94                 ret = -ENOTSUPP;
  95
  96         return ret;
  97 }
  98
  99 /**
 100  *  @brief Associate to a specific BSS discovered in a scan
 101  *
 102  *  @param priv      A pointer to wlan_private structure
 103  *  @param pbssdesc  Pointer to the BSS descriptor to associate with.
 104  *
 105  *  @return          0-success, otherwise fail
 106  */
 107 int wlan_associate(wlan_private * priv, struct bss_descriptor * pbssdesc)
 108 {
 109         wlan_adapter *adapter = priv->adapter;
 110         int ret;
 111
 112         lbs_deb_enter(LBS_DEB_JOIN);
 113
 114         ret = libertas_prepare_and_send_command(priv, cmd_802_11_authenticate,
 115                                     0, cmd_option_waitforrsp,
 116                                     0, pbssdesc->macaddress);
 117
 118         if (ret)
 119                 goto done;
 120
 121         /* set preamble to firmware */
 122         if (adapter->capinfo.shortpreamble && pbssdesc->cap.shortpreamble)
 123                 adapter->preamble = cmd_type_short_preamble;
 124         else
 125                 adapter->preamble = cmd_type_long_preamble;
 126
 127         libertas_set_radio_control(priv);
 128
 129         ret = libertas_prepare_and_send_command(priv, cmd_802_11_associate,
 130                                     0, cmd_option_waitforrsp, 0, pbssdesc);
 131
 132 done:
 133         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 134         return ret;
 135 }
 136
 137 /**
 138  *  @brief Start an Adhoc Network
 139  *
 140  *  @param priv         A pointer to wlan_private structure
 141  *  @param adhocssid    The ssid of the Adhoc Network
 142  *  @return             0--success, -1--fail
 143  */
 144 int libertas_start_adhoc_network(wlan_private * priv, struct WLAN_802_11_SSID *adhocssid)
 145 {
 146         wlan_adapter *adapter = priv->adapter;
 147         int ret = 0;
 148
 149         adapter->adhoccreate = 1;
 150
 151         if (!adapter->capinfo.shortpreamble) {
 152                 lbs_deb_join("AdhocStart: Long preamble\n");
 153                 adapter->preamble = cmd_type_long_preamble;
 154         } else {
 155                 lbs_deb_join("AdhocStart: Short preamble\n");
 156                 adapter->preamble = cmd_type_short_preamble;
 157         }
 158
 159         libertas_set_radio_control(priv);
 160
 161         lbs_deb_join("Adhoc channel = %d\n", adapter->adhocchannel);
 162         lbs_deb_join("curbssparams.channel = %d\n",
 163                adapter->curbssparams.channel);
 164         lbs_deb_join("curbssparams.band = %d\n", adapter->curbssparams.band);
 165
 166         ret = libertas_prepare_and_send_command(priv, cmd_802_11_ad_hoc_start,
 167                                     0, cmd_option_waitforrsp, 0, adhocssid);
 168
 169         return ret;
 170 }
 171
 172 /**
 173  *  @brief Join an adhoc network found in a previous scan
 174  *
 175  *  @param priv         A pointer to wlan_private structure
 176  *  @param pbssdesc     Pointer to a BSS descriptor found in a previous scan
 177  *                      to attempt to join
 178  *
 179  *  @return             0--success, -1--fail
 180  */
 181 int libertas_join_adhoc_network(wlan_private * priv, struct bss_descriptor * pbssdesc)
 182 {
 183         wlan_adapter *adapter = priv->adapter;
 184         int ret = 0;
 185
 186         lbs_deb_join("libertas_join_adhoc_network: CurBss.ssid =%s\n",
 187                adapter->curbssparams.ssid.ssid);
 188         lbs_deb_join("libertas_join_adhoc_network: CurBss.ssid_len =%u\n",
 189                adapter->curbssparams.ssid.ssidlength);
 190         lbs_deb_join("libertas_join_adhoc_network: ssid =%s\n", pbssdesc->ssid.ssid);
 191         lbs_deb_join("libertas_join_adhoc_network: ssid len =%u\n",
 192                pbssdesc->ssid.ssidlength);
 193
 194         /* check if the requested SSID is already joined */
 195         if (adapter->curbssparams.ssid.ssidlength
 196             && !libertas_SSID_cmp(&pbssdesc->ssid, &adapter->curbssparams.ssid)
 197             && (adapter->mode == IW_MODE_ADHOC)) {
 198
 199         lbs_deb_join(
 200                        "ADHOC_J_CMD: New ad-hoc SSID is the same as current, "
 201                        "not attempting to re-join");
 202
 203                 return -1;
 204         }
 205
 206         /*Use shortpreamble only when both creator and card supports
 207            short preamble */
 208         if (!pbssdesc->cap.shortpreamble || !adapter->capinfo.shortpreamble) {
 209                 lbs_deb_join("AdhocJoin: Long preamble\n");
 210                 adapter->preamble = cmd_type_long_preamble;
 211         } else {
 212                 lbs_deb_join("AdhocJoin: Short preamble\n");
 213                 adapter->preamble = cmd_type_short_preamble;
 214         }
 215
 216         libertas_set_radio_control(priv);
 217
 218         lbs_deb_join("curbssparams.channel = %d\n",
 219                adapter->curbssparams.channel);
 220         lbs_deb_join("curbssparams.band = %c\n", adapter->curbssparams.band);
 221
 222         adapter->adhoccreate = 0;
 223
 224         ret = libertas_prepare_and_send_command(priv, cmd_802_11_ad_hoc_join,
 225                                     0, cmd_option_waitforrsp,
 226                                     OID_802_11_SSID, pbssdesc);
 227
 228         return ret;
 229 }
 230
 231 int libertas_stop_adhoc_network(wlan_private * priv)
 232 {
 233         return libertas_prepare_and_send_command(priv, cmd_802_11_ad_hoc_stop,
 234                                      0, cmd_option_waitforrsp, 0, NULL);
 235 }
 236
 237 /**
 238  *  @brief Send Deauthentication Request
 239  *
 240  *  @param priv      A pointer to wlan_private structure
 241  *  @return          0--success, -1--fail
 242  */
 243 int libertas_send_deauthentication(wlan_private * priv)
 244 {
 245         return libertas_prepare_and_send_command(priv, cmd_802_11_deauthenticate,
 246                                      0, cmd_option_waitforrsp, 0, NULL);
 247 }
 248
 249 /**
 250  *  @brief This function prepares command of authenticate.
 251  *
 252  *  @param priv      A pointer to wlan_private structure
 253  *  @param cmd       A pointer to cmd_ds_command structure
 254  *  @param pdata_buf Void cast of pointer to a BSSID to authenticate with
 255  *
 256  *  @return         0 or -1
 257  */
 258 int libertas_cmd_80211_authenticate(wlan_private * priv,
 259                                  struct cmd_ds_command *cmd,
 260                                  void *pdata_buf)
 261 {
 262         wlan_adapter *adapter = priv->adapter;
 263         struct cmd_ds_802_11_authenticate *pauthenticate = &cmd->params.auth;
 264         int ret = -1;
 265         u8 *bssid = pdata_buf;
 266
 267         cmd->command = cpu_to_le16(cmd_802_11_authenticate);
 268         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_authenticate)
 269                                 + S_DS_GEN);
 270
 271         /* translate auth mode to 802.11 defined wire value */
 272         switch (adapter->secinfo.auth_mode) {
 273         case IW_AUTH_ALG_OPEN_SYSTEM:
 274                 pauthenticate->authtype = 0x00;
 275                 break;
 276         case IW_AUTH_ALG_SHARED_KEY:
 277                 pauthenticate->authtype = 0x01;
 278                 break;
 279         case IW_AUTH_ALG_LEAP:
 280                 pauthenticate->authtype = 0x80;
 281                 break;
 282         default:
 283                 lbs_deb_join("AUTH_CMD: invalid auth alg 0x%X\n",
 284                              adapter->secinfo.auth_mode);
 285                 goto out;
 286         }
 287
 288         memcpy(pauthenticate->macaddr, bssid, ETH_ALEN);
 289
 290         lbs_deb_join("AUTH_CMD: Bssid is : %x:%x:%x:%x:%x:%x\n",
 291                bssid[0], bssid[1], bssid[2], bssid[3], bssid[4], bssid[5]);
 292         ret = 0;
 293
 294 out:
 295         return ret;
 296 }
 297
 298 int libertas_cmd_80211_deauthenticate(wlan_private * priv,
 299                                    struct cmd_ds_command *cmd)
 300 {
 301         wlan_adapter *adapter = priv->adapter;
 302         struct cmd_ds_802_11_deauthenticate *dauth = &cmd->params.deauth;
 303
 304         lbs_deb_enter(LBS_DEB_JOIN);
 305
 306         cmd->command = cpu_to_le16(cmd_802_11_deauthenticate);
 307         cmd->size =
 308             cpu_to_le16(sizeof(struct cmd_ds_802_11_deauthenticate) +
 309                              S_DS_GEN);
 310
 311         /* set AP MAC address */
 312         memmove(dauth->macaddr, adapter->curbssparams.bssid,
 313                 ETH_ALEN);
 314
 315         /* Reason code 3 = Station is leaving */
 316 #define REASON_CODE_STA_LEAVING 3
 317         dauth->reasoncode = cpu_to_le16(REASON_CODE_STA_LEAVING);
 318
 319         lbs_deb_leave(LBS_DEB_JOIN);
 320         return 0;
 321 }
 322
 323 int libertas_cmd_80211_associate(wlan_private * priv,
 324                               struct cmd_ds_command *cmd, void *pdata_buf)
 325 {
 326         wlan_adapter *adapter = priv->adapter;
 327         struct cmd_ds_802_11_associate *passo = &cmd->params.associate;
 328         int ret = 0;
 329         struct bss_descriptor *pbssdesc;
 330         u8 *card_rates;
 331         u8 *pos;
 332         int card_rates_size;
 333         u16 tmpcap;
 334         struct mrvlietypes_ssidparamset *ssid;
 335         struct mrvlietypes_phyparamset *phy;
 336         struct mrvlietypes_ssparamset *ss;
 337         struct mrvlietypes_ratesparamset *rates;
 338         struct mrvlietypes_rsnparamset *rsn;
 339
 340         lbs_deb_enter(LBS_DEB_JOIN);
 341
 342         pbssdesc = pdata_buf;
 343         pos = (u8 *) passo;
 344
 345         if (!adapter) {
 346                 ret = -1;
 347                 goto done;
 348         }
 349
 350         cmd->command = cpu_to_le16(cmd_802_11_associate);
 351
 352         /* Save so we know which BSS Desc to use in the response handler */
 353         adapter->pattemptedbssdesc = pbssdesc;
 354
 355         memcpy(passo->peerstaaddr,
 356                pbssdesc->macaddress, sizeof(passo->peerstaaddr));
 357         pos += sizeof(passo->peerstaaddr);
 358
 359         /* set the listen interval */
 360         passo->listeninterval = adapter->listeninterval;
 361
 362         pos += sizeof(passo->capinfo);
 363         pos += sizeof(passo->listeninterval);
 364         pos += sizeof(passo->bcnperiod);
 365         pos += sizeof(passo->dtimperiod);
 366
 367         ssid = (struct mrvlietypes_ssidparamset *) pos;
 368         ssid->header.type = cpu_to_le16(TLV_TYPE_SSID);
 369         ssid->header.len = pbssdesc->ssid.ssidlength;
 370         memcpy(ssid->ssid, pbssdesc->ssid.ssid, ssid->header.len);
 371         pos += sizeof(ssid->header) + ssid->header.len;
 372         ssid->header.len = cpu_to_le16(ssid->header.len);
 373
 374         phy = (struct mrvlietypes_phyparamset *) pos;
 375         phy->header.type = cpu_to_le16(TLV_TYPE_PHY_DS);
 376         phy->header.len = sizeof(phy->fh_ds.dsparamset);
 377         memcpy(&phy->fh_ds.dsparamset,
 378                &pbssdesc->phyparamset.dsparamset.currentchan,
 379                sizeof(phy->fh_ds.dsparamset));
 380         pos += sizeof(phy->header) + phy->header.len;
 381         phy->header.len = cpu_to_le16(phy->header.len);
 382
 383         ss = (struct mrvlietypes_ssparamset *) pos;
 384         ss->header.type = cpu_to_le16(TLV_TYPE_CF);
 385         ss->header.len = sizeof(ss->cf_ibss.cfparamset);
 386         pos += sizeof(ss->header) + ss->header.len;
 387         ss->header.len = cpu_to_le16(ss->header.len);
 388
 389         rates = (struct mrvlietypes_ratesparamset *) pos;
 390         rates->header.type = cpu_to_le16(TLV_TYPE_RATES);
 391
 392         memcpy(&rates->rates, &pbssdesc->libertas_supported_rates, WLAN_SUPPORTED_RATES);
 393
 394         card_rates = libertas_supported_rates;
 395         card_rates_size = sizeof(libertas_supported_rates);
 396
 397         if (get_common_rates(adapter, rates->rates, WLAN_SUPPORTED_RATES,
 398                              card_rates, card_rates_size)) {
 399                 ret = -1;
 400                 goto done;
 401         }
 402
 403         rates->header.len = min_t(size_t, strlen(rates->rates), WLAN_SUPPORTED_RATES);
 404         adapter->curbssparams.numofrates = rates->header.len;
 405
 406         pos += sizeof(rates->header) + rates->header.len;
 407         rates->header.len = cpu_to_le16(rates->header.len);
 408
 409         if (adapter->secinfo.WPAenabled || adapter->secinfo.WPA2enabled) {
 410                 rsn = (struct mrvlietypes_rsnparamset *) pos;
 411                 rsn->header.type = (u16) adapter->wpa_ie[0];    /* WPA_IE or WPA2_IE */
 412                 rsn->header.type = cpu_to_le16(rsn->header.type);
 413                 rsn->header.len = (u16) adapter->wpa_ie[1];
 414                 memcpy(rsn->rsnie, &adapter->wpa_ie[2], rsn->header.len);
 415                 lbs_dbg_hex("ASSOC_CMD: RSN IE", (u8 *) rsn,
 416                         sizeof(rsn->header) + rsn->header.len);
 417                 pos += sizeof(rsn->header) + rsn->header.len;
 418                 rsn->header.len = cpu_to_le16(rsn->header.len);
 419         }
 420
 421         /* update curbssparams */
 422         adapter->curbssparams.channel =
 423             (pbssdesc->phyparamset.dsparamset.currentchan);
 424
 425         /* Copy the infra. association rates into Current BSS state structure */
 426         memcpy(&adapter->curbssparams.datarates, &rates->rates,
 427                min_t(size_t, sizeof(adapter->curbssparams.datarates), rates->header.len));
 428
 429         lbs_deb_join("ASSOC_CMD: rates->header.len = %d\n", rates->header.len);
 430
 431         /* set IBSS field */
 432         if (pbssdesc->mode == IW_MODE_INFRA) {
 433 #define CAPINFO_ESS_MODE 1
 434                 passo->capinfo.ess = CAPINFO_ESS_MODE;
 435         }
 436
 437         if (libertas_parse_dnld_countryinfo_11d(priv)) {
 438                 ret = -1;
 439                 goto done;
 440         }
 441
 442         cmd->size = cpu_to_le16((u16) (pos - (u8 *) passo) + S_DS_GEN);
 443
 444         /* set the capability info at last */
 445         memcpy(&tmpcap, &pbssdesc->cap, sizeof(passo->capinfo));
 446         tmpcap &= CAPINFO_MASK;
 447         lbs_deb_join("ASSOC_CMD: tmpcap=%4X CAPINFO_MASK=%4X\n",
 448                tmpcap, CAPINFO_MASK);
 449         tmpcap = cpu_to_le16(tmpcap);
 450         memcpy(&passo->capinfo, &tmpcap, sizeof(passo->capinfo));
 451
 452 done:
 453         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 454         return ret;
 455 }
 456
 457 int libertas_cmd_80211_ad_hoc_start(wlan_private * priv,
 458                                  struct cmd_ds_command *cmd, void *pssid)
 459 {
 460         wlan_adapter *adapter = priv->adapter;
 461         struct cmd_ds_802_11_ad_hoc_start *adhs = &cmd->params.ads;
 462         int ret = 0;
 463         int cmdappendsize = 0;
 464         int i;
 465         u16 tmpcap;
 466         struct bss_descriptor *pbssdesc;
 467         struct WLAN_802_11_SSID *ssid = pssid;
 468
 469         lbs_deb_enter(LBS_DEB_JOIN);
 470
 471         if (!adapter) {
 472                 ret = -1;
 473                 goto done;
 474         }
 475
 476         cmd->command = cpu_to_le16(cmd_802_11_ad_hoc_start);
 477
 478         pbssdesc = &adapter->curbssparams.bssdescriptor;
 479         adapter->pattemptedbssdesc = pbssdesc;
 480
 481         /*
 482          * Fill in the parameters for 2 data structures:
 483          *   1. cmd_ds_802_11_ad_hoc_start command
 484          *   2. adapter->scantable[i]
 485          *
 486          * Driver will fill up SSID, bsstype,IBSS param, Physical Param,
 487          *   probe delay, and cap info.
 488          *
 489          * Firmware will fill up beacon period, DTIM, Basic rates
 490          *   and operational rates.
 491          */
 492
 493         memset(adhs->SSID, 0, IW_ESSID_MAX_SIZE);
 494
 495         memcpy(adhs->SSID, ssid->ssid, ssid->ssidlength);
 496
 497         lbs_deb_join("ADHOC_S_CMD: SSID = %s\n", adhs->SSID);
 498
 499         memset(pbssdesc->ssid.ssid, 0, IW_ESSID_MAX_SIZE);
 500         memcpy(pbssdesc->ssid.ssid, ssid->ssid, ssid->ssidlength);
 501
 502         pbssdesc->ssid.ssidlength = ssid->ssidlength;
 503
 504         /* set the BSS type */
 505         adhs->bsstype = cmd_bss_type_ibss;
 506         pbssdesc->mode = IW_MODE_ADHOC;
 507         adhs->beaconperiod = adapter->beaconperiod;
 508
 509         /* set Physical param set */
 510 #define DS_PARA_IE_ID   3
 511 #define DS_PARA_IE_LEN  1
 512
 513         adhs->phyparamset.dsparamset.elementid = DS_PARA_IE_ID;
 514         adhs->phyparamset.dsparamset.len = DS_PARA_IE_LEN;
 515
 516         WARN_ON(!adapter->adhocchannel);
 517
 518         lbs_deb_join("ADHOC_S_CMD: Creating ADHOC on channel %d\n",
 519                adapter->adhocchannel);
 520
 521         adapter->curbssparams.channel = adapter->adhocchannel;
 522
 523         pbssdesc->channel = adapter->adhocchannel;
 524         adhs->phyparamset.dsparamset.currentchan = adapter->adhocchannel;
 525
 526         memcpy(&pbssdesc->phyparamset,
 527                &adhs->phyparamset, sizeof(union ieeetypes_phyparamset));
 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 = adapter->atimwindow;
 536         memcpy(&pbssdesc->ssparamset,
 537                &adhs->ssparamset, sizeof(union IEEEtypes_ssparamset));
 538
 539         /* set capability info */
 540         adhs->cap.ess = 0;
 541         adhs->cap.ibss = 1;
 542         pbssdesc->cap.ibss = 1;
 543
 544         /* probedelay */
 545         adhs->probedelay = cpu_to_le16(cmd_scan_probe_delay_time);
 546
 547         /* set up privacy in adapter->scantable[i] */
 548         if (adapter->secinfo.wep_enabled) {
 549                 lbs_deb_join("ADHOC_S_CMD: WEP enabled, setting privacy on\n");
 550                 pbssdesc->privacy = wlan802_11privfilter8021xWEP;
 551                 adhs->cap.privacy = AD_HOC_CAP_PRIVACY_ON;
 552         } else {
 553                 lbs_deb_join("ADHOC_S_CMD: WEP disabled, setting privacy off\n");
 554                 pbssdesc->privacy = wlan802_11privfilteracceptall;
 555         }
 556
 557         memset(adhs->datarate, 0, sizeof(adhs->datarate));
 558
 559         if (adapter->adhoc_grate_enabled) {
 560                 memcpy(adhs->datarate, libertas_adhoc_rates_g,
 561                        min(sizeof(adhs->datarate), sizeof(libertas_adhoc_rates_g)));
 562         } else {
 563                 memcpy(adhs->datarate, libertas_adhoc_rates_b,
 564                        min(sizeof(adhs->datarate), sizeof(libertas_adhoc_rates_b)));
 565         }
 566
 567         /* Find the last non zero */
 568         for (i = 0; i < sizeof(adhs->datarate) && adhs->datarate[i]; i++) ;
 569
 570         adapter->curbssparams.numofrates = i;
 571
 572         /* Copy the ad-hoc creating rates into Current BSS state structure */
 573         memcpy(&adapter->curbssparams.datarates,
 574                &adhs->datarate, adapter->curbssparams.numofrates);
 575
 576         lbs_deb_join("ADHOC_S_CMD: rates=%02x %02x %02x %02x \n",
 577                adhs->datarate[0], adhs->datarate[1],
 578                adhs->datarate[2], adhs->datarate[3]);
 579
 580         lbs_deb_join("ADHOC_S_CMD: AD HOC Start command is ready\n");
 581
 582         if (libertas_create_dnld_countryinfo_11d(priv)) {
 583                 lbs_deb_join("ADHOC_S_CMD: dnld_countryinfo_11d failed\n");
 584                 ret = -1;
 585                 goto done;
 586         }
 587
 588         cmd->size =
 589             cpu_to_le16(sizeof(struct cmd_ds_802_11_ad_hoc_start)
 590                              + S_DS_GEN + cmdappendsize);
 591
 592         memcpy(&tmpcap, &adhs->cap, sizeof(u16));
 593         tmpcap = cpu_to_le16(tmpcap);
 594         memcpy(&adhs->cap, &tmpcap, sizeof(u16));
 595
 596         ret = 0;
 597 done:
 598         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 599         return ret;
 600 }
 601
 602 int libertas_cmd_80211_ad_hoc_stop(wlan_private * priv,
 603                                 struct cmd_ds_command *cmd)
 604 {
 605         cmd->command = cpu_to_le16(cmd_802_11_ad_hoc_stop);
 606         cmd->size = cpu_to_le16(S_DS_GEN);
 607
 608         return 0;
 609 }
 610
 611 int libertas_cmd_80211_ad_hoc_join(wlan_private * priv,
 612                                 struct cmd_ds_command *cmd, void *pdata_buf)
 613 {
 614         wlan_adapter *adapter = priv->adapter;
 615         struct cmd_ds_802_11_ad_hoc_join *padhocjoin = &cmd->params.adj;
 616         struct bss_descriptor *pbssdesc = pdata_buf;
 617         int cmdappendsize = 0;
 618         int ret = 0;
 619         u8 *card_rates;
 620         int card_rates_size;
 621         u16 tmpcap;
 622         int i;
 623
 624         lbs_deb_enter(LBS_DEB_JOIN);
 625
 626         adapter->pattemptedbssdesc = pbssdesc;
 627
 628         cmd->command = cpu_to_le16(cmd_802_11_ad_hoc_join);
 629
 630         padhocjoin->bssdescriptor.bsstype = cmd_bss_type_ibss;
 631
 632         padhocjoin->bssdescriptor.beaconperiod = pbssdesc->beaconperiod;
 633
 634         memcpy(&padhocjoin->bssdescriptor.BSSID,
 635                &pbssdesc->macaddress, ETH_ALEN);
 636
 637         memcpy(&padhocjoin->bssdescriptor.SSID,
 638                &pbssdesc->ssid.ssid, pbssdesc->ssid.ssidlength);
 639
 640         memcpy(&padhocjoin->bssdescriptor.phyparamset,
 641                &pbssdesc->phyparamset, sizeof(union ieeetypes_phyparamset));
 642
 643         memcpy(&padhocjoin->bssdescriptor.ssparamset,
 644                &pbssdesc->ssparamset, sizeof(union IEEEtypes_ssparamset));
 645
 646         memcpy(&tmpcap, &pbssdesc->cap, sizeof(struct ieeetypes_capinfo));
 647         tmpcap &= CAPINFO_MASK;
 648
 649         lbs_deb_join("ADHOC_J_CMD: tmpcap=%4X CAPINFO_MASK=%4X\n",
 650                tmpcap, CAPINFO_MASK);
 651         memcpy(&padhocjoin->bssdescriptor.cap, &tmpcap,
 652                sizeof(struct ieeetypes_capinfo));
 653
 654         /* information on BSSID descriptor passed to FW */
 655     lbs_deb_join(
 656                "ADHOC_J_CMD: BSSID = %2x-%2x-%2x-%2x-%2x-%2x, SSID = %s\n",
 657                padhocjoin->bssdescriptor.BSSID[0],
 658                padhocjoin->bssdescriptor.BSSID[1],
 659                padhocjoin->bssdescriptor.BSSID[2],
 660                padhocjoin->bssdescriptor.BSSID[3],
 661                padhocjoin->bssdescriptor.BSSID[4],
 662                padhocjoin->bssdescriptor.BSSID[5],
 663                padhocjoin->bssdescriptor.SSID);
 664
 665         /* failtimeout */
 666         padhocjoin->failtimeout = cpu_to_le16(MRVDRV_ASSOCIATION_TIME_OUT);
 667
 668         /* probedelay */
 669         padhocjoin->probedelay =
 670             cpu_to_le16(cmd_scan_probe_delay_time);
 671
 672         /* Copy Data rates from the rates recorded in scan response */
 673         memset(padhocjoin->bssdescriptor.datarates, 0,
 674                sizeof(padhocjoin->bssdescriptor.datarates));
 675         memcpy(padhocjoin->bssdescriptor.datarates, pbssdesc->datarates,
 676                min(sizeof(padhocjoin->bssdescriptor.datarates),
 677                    sizeof(pbssdesc->datarates)));
 678
 679         card_rates = libertas_supported_rates;
 680         card_rates_size = sizeof(libertas_supported_rates);
 681
 682         adapter->curbssparams.channel = pbssdesc->channel;
 683
 684         if (get_common_rates(adapter, padhocjoin->bssdescriptor.datarates,
 685                              sizeof(padhocjoin->bssdescriptor.datarates),
 686                              card_rates, card_rates_size)) {
 687                 lbs_deb_join("ADHOC_J_CMD: get_common_rates returns error.\n");
 688                 ret = -1;
 689                 goto done;
 690         }
 691
 692         /* Find the last non zero */
 693         for (i = 0; i < sizeof(padhocjoin->bssdescriptor.datarates)
 694              && padhocjoin->bssdescriptor.datarates[i]; i++) ;
 695
 696         adapter->curbssparams.numofrates = i;
 697
 698         /*
 699          * Copy the adhoc joining rates to Current BSS State structure
 700          */
 701         memcpy(adapter->curbssparams.datarates,
 702                padhocjoin->bssdescriptor.datarates,
 703                adapter->curbssparams.numofrates);
 704
 705         padhocjoin->bssdescriptor.ssparamset.ibssparamset.atimwindow =
 706             cpu_to_le16(pbssdesc->atimwindow);
 707
 708         if (adapter->secinfo.wep_enabled) {
 709                 padhocjoin->bssdescriptor.cap.privacy = AD_HOC_CAP_PRIVACY_ON;
 710         }
 711
 712         if (adapter->psmode == wlan802_11powermodemax_psp) {
 713                 /* wake up first */
 714                 enum WLAN_802_11_POWER_MODE Localpsmode;
 715
 716                 Localpsmode = wlan802_11powermodecam;
 717                 ret = libertas_prepare_and_send_command(priv,
 718                                             cmd_802_11_ps_mode,
 719                                             cmd_act_set,
 720                                             0, 0, &Localpsmode);
 721
 722                 if (ret) {
 723                         ret = -1;
 724                         goto done;
 725                 }
 726         }
 727
 728         if (libertas_parse_dnld_countryinfo_11d(priv)) {
 729                 ret = -1;
 730                 goto done;
 731         }
 732
 733         cmd->size =
 734             cpu_to_le16(sizeof(struct cmd_ds_802_11_ad_hoc_join)
 735                              + S_DS_GEN + cmdappendsize);
 736
 737         memcpy(&tmpcap, &padhocjoin->bssdescriptor.cap,
 738                sizeof(struct ieeetypes_capinfo));
 739         tmpcap = cpu_to_le16(tmpcap);
 740
 741         memcpy(&padhocjoin->bssdescriptor.cap,
 742                &tmpcap, sizeof(struct ieeetypes_capinfo));
 743
 744 done:
 745         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 746         return ret;
 747 }
 748
 749 int libertas_ret_80211_associate(wlan_private * priv,
 750                               struct cmd_ds_command *resp)
 751 {
 752         wlan_adapter *adapter = priv->adapter;
 753         int ret = 0;
 754         union iwreq_data wrqu;
 755         struct ieeetypes_assocrsp *passocrsp;
 756         struct bss_descriptor *pbssdesc;
 757
 758         lbs_deb_enter(LBS_DEB_JOIN);
 759
 760         passocrsp = (struct ieeetypes_assocrsp *) & resp->params;
 761
 762         if (passocrsp->statuscode) {
 763
 764                 libertas_mac_event_disconnected(priv);
 765
 766         lbs_deb_join("ASSOC_RESP: Association failed, status code = %d\n",
 767                      passocrsp->statuscode);
 768
 769                 ret = -1;
 770                 goto done;
 771         }
 772
 773         lbs_dbg_hex("ASSOC_RESP:", (void *)&resp->params,
 774                 le16_to_cpu(resp->size) - S_DS_GEN);
 775
 776         /* Send a Media Connected event, according to the Spec */
 777         adapter->connect_status = libertas_connected;
 778
 779         /* Set the attempted BSSID Index to current */
 780         pbssdesc = adapter->pattemptedbssdesc;
 781
 782         lbs_deb_join("ASSOC_RESP: %s\n", pbssdesc->ssid.ssid);
 783
 784         /* Set the new SSID to current SSID */
 785         memcpy(&adapter->curbssparams.ssid,
 786                &pbssdesc->ssid, sizeof(struct WLAN_802_11_SSID));
 787
 788         /* Set the new BSSID (AP's MAC address) to current BSSID */
 789         memcpy(adapter->curbssparams.bssid,
 790                pbssdesc->macaddress, ETH_ALEN);
 791
 792         /* Make a copy of current BSSID descriptor */
 793         memcpy(&adapter->curbssparams.bssdescriptor,
 794                pbssdesc, sizeof(struct bss_descriptor));
 795
 796         lbs_deb_join("ASSOC_RESP: currentpacketfilter is %x\n",
 797                adapter->currentpacketfilter);
 798
 799         adapter->SNR[TYPE_RXPD][TYPE_AVG] = 0;
 800         adapter->NF[TYPE_RXPD][TYPE_AVG] = 0;
 801
 802         memset(adapter->rawSNR, 0x00, sizeof(adapter->rawSNR));
 803         memset(adapter->rawNF, 0x00, sizeof(adapter->rawNF));
 804         adapter->nextSNRNF = 0;
 805         adapter->numSNRNF = 0;
 806
 807         netif_carrier_on(priv->wlan_dev.netdev);
 808         netif_wake_queue(priv->wlan_dev.netdev);
 809
 810         netif_carrier_on(priv->mesh_dev);
 811         netif_wake_queue(priv->mesh_dev);
 812
 813         lbs_deb_join("ASSOC_RESP: Associated \n");
 814
 815         memcpy(wrqu.ap_addr.sa_data, adapter->curbssparams.bssid, ETH_ALEN);
 816         wrqu.ap_addr.sa_family = ARPHRD_ETHER;
 817         wireless_send_event(priv->wlan_dev.netdev, SIOCGIWAP, &wrqu, NULL);
 818
 819 done:
 820         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 821         return ret;
 822 }
 823
 824 int libertas_ret_80211_disassociate(wlan_private * priv,
 825                                  struct cmd_ds_command *resp)
 826 {
 827         lbs_deb_enter(LBS_DEB_JOIN);
 828
 829         libertas_mac_event_disconnected(priv);
 830
 831         lbs_deb_leave(LBS_DEB_JOIN);
 832         return 0;
 833 }
 834
 835 int libertas_ret_80211_ad_hoc_start(wlan_private * priv,
 836                                  struct cmd_ds_command *resp)
 837 {
 838         wlan_adapter *adapter = priv->adapter;
 839         int ret = 0;
 840         u16 command = le16_to_cpu(resp->command);
 841         u16 result = le16_to_cpu(resp->result);
 842         struct cmd_ds_802_11_ad_hoc_result *padhocresult;
 843         union iwreq_data wrqu;
 844         struct bss_descriptor *pbssdesc;
 845
 846         lbs_deb_enter(LBS_DEB_JOIN);
 847
 848         padhocresult = &resp->params.result;
 849
 850         lbs_deb_join("ADHOC_S_RESP: size = %d\n", le16_to_cpu(resp->size));
 851         lbs_deb_join("ADHOC_S_RESP: command = %x\n", command);
 852         lbs_deb_join("ADHOC_S_RESP: result = %x\n", result);
 853
 854         pbssdesc = adapter->pattemptedbssdesc;
 855
 856         /*
 857          * Join result code 0 --> SUCCESS
 858          */
 859         if (result) {
 860                 lbs_deb_join("ADHOC_RESP failed\n");
 861                 if (adapter->connect_status == libertas_connected) {
 862                         libertas_mac_event_disconnected(priv);
 863                 }
 864
 865                 memset(&adapter->curbssparams.bssdescriptor,
 866                        0x00, sizeof(adapter->curbssparams.bssdescriptor));
 867
 868                 ret = -1;
 869                 goto done;
 870         }
 871
 872         /*
 873          * Now the join cmd should be successful
 874          * If BSSID has changed use SSID to compare instead of BSSID
 875          */
 876         lbs_deb_join("ADHOC_J_RESP  %s\n", pbssdesc->ssid.ssid);
 877
 878         /* Send a Media Connected event, according to the Spec */
 879         adapter->connect_status = libertas_connected;
 880
 881         if (command == cmd_ret_802_11_ad_hoc_start) {
 882                 /* Update the created network descriptor with the new BSSID */
 883                 memcpy(pbssdesc->macaddress,
 884                        padhocresult->BSSID, ETH_ALEN);
 885         } else {
 886
 887                 /* Make a copy of current BSSID descriptor, only needed for join since
 888                  *   the current descriptor is already being used for adhoc start
 889                  */
 890                 memmove(&adapter->curbssparams.bssdescriptor,
 891                         pbssdesc, sizeof(struct bss_descriptor));
 892         }
 893
 894         /* Set the BSSID from the joined/started descriptor */
 895         memcpy(&adapter->curbssparams.bssid,
 896                pbssdesc->macaddress, ETH_ALEN);
 897
 898         /* Set the new SSID to current SSID */
 899         memcpy(&adapter->curbssparams.ssid,
 900                &pbssdesc->ssid, sizeof(struct WLAN_802_11_SSID));
 901
 902         netif_carrier_on(priv->wlan_dev.netdev);
 903         netif_wake_queue(priv->wlan_dev.netdev);
 904
 905         netif_carrier_on(priv->mesh_dev);
 906         netif_wake_queue(priv->mesh_dev);
 907
 908         memset(&wrqu, 0, sizeof(wrqu));
 909         memcpy(wrqu.ap_addr.sa_data, adapter->curbssparams.bssid, ETH_ALEN);
 910         wrqu.ap_addr.sa_family = ARPHRD_ETHER;
 911         wireless_send_event(priv->wlan_dev.netdev, SIOCGIWAP, &wrqu, NULL);
 912
 913         lbs_deb_join("ADHOC_RESP: - Joined/Started Ad Hoc\n");
 914         lbs_deb_join("ADHOC_RESP: channel = %d\n", adapter->adhocchannel);
 915         lbs_deb_join("ADHOC_RESP: BSSID = %02x:%02x:%02x:%02x:%02x:%02x\n",
 916                padhocresult->BSSID[0], padhocresult->BSSID[1],
 917                padhocresult->BSSID[2], padhocresult->BSSID[3],
 918                padhocresult->BSSID[4], padhocresult->BSSID[5]);
 919
 920 done:
 921         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 922         return ret;
 923 }
 924
 925 int libertas_ret_80211_ad_hoc_stop(wlan_private * priv,
 926                                 struct cmd_ds_command *resp)
 927 {
 928         lbs_deb_enter(LBS_DEB_JOIN);
 929
 930         libertas_mac_event_disconnected(priv);
 931
 932         lbs_deb_leave(LBS_DEB_JOIN);
 933         return 0;
 934 }