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_pr_debug(1, "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->inframode == wlan802_11infrastructure &&
  91             adapter->connect_status == libertas_connected)
  92                 ret = libertas_send_deauthentication(priv);
  93         else
  94                 ret = -ENOTSUPP;
  95
  96         return ret;
  97 }
  98
  99 int libertas_do_adhocstop_ioctl(wlan_private * priv)
 100 {
 101         wlan_adapter *adapter = priv->adapter;
 102         int ret = 0;
 103
 104         if (adapter->inframode == wlan802_11ibss &&
 105             adapter->connect_status == libertas_connected)
 106                 ret = libertas_stop_adhoc_network(priv);
 107         else
 108                 ret = -ENOTSUPP;
 109
 110         return ret;
 111 }
 112
 113 /**
 114  *  @brief Associate to a specific BSS discovered in a scan
 115  *
 116  *  @param priv      A pointer to wlan_private structure
 117  *  @param pbssdesc  Pointer to the BSS descriptor to associate with.
 118  *
 119  *  @return          0-success, otherwise fail
 120  */
 121 int wlan_associate(wlan_private * priv, struct bss_descriptor * pbssdesc)
 122 {
 123         wlan_adapter *adapter = priv->adapter;
 124         int ret;
 125
 126         ENTER();
 127
 128         ret = libertas_prepare_and_send_command(priv, cmd_802_11_authenticate,
 129                                     0, cmd_option_waitforrsp,
 130                                     0, pbssdesc->macaddress);
 131
 132         if (ret) {
 133                 LEAVE();
 134                 return ret;
 135         }
 136
 137         /* set preamble to firmware */
 138         if (adapter->capinfo.shortpreamble && pbssdesc->cap.shortpreamble)
 139                 adapter->preamble = cmd_type_short_preamble;
 140         else
 141                 adapter->preamble = cmd_type_long_preamble;
 142
 143         libertas_set_radio_control(priv);
 144
 145         ret = libertas_prepare_and_send_command(priv, cmd_802_11_associate,
 146                                     0, cmd_option_waitforrsp, 0, pbssdesc);
 147
 148         LEAVE();
 149         return ret;
 150 }
 151
 152 /**
 153  *  @brief Start an Adhoc Network
 154  *
 155  *  @param priv         A pointer to wlan_private structure
 156  *  @param adhocssid    The ssid of the Adhoc Network
 157  *  @return             0--success, -1--fail
 158  */
 159 int libertas_start_adhoc_network(wlan_private * priv, struct WLAN_802_11_SSID *adhocssid)
 160 {
 161         wlan_adapter *adapter = priv->adapter;
 162         int ret = 0;
 163
 164         adapter->adhoccreate = 1;
 165
 166         if (!adapter->capinfo.shortpreamble) {
 167                 lbs_pr_debug(1, "AdhocStart: Long preamble\n");
 168                 adapter->preamble = cmd_type_long_preamble;
 169         } else {
 170                 lbs_pr_debug(1, "AdhocStart: Short preamble\n");
 171                 adapter->preamble = cmd_type_short_preamble;
 172         }
 173
 174         libertas_set_radio_control(priv);
 175
 176         lbs_pr_debug(1, "Adhoc channel = %d\n", adapter->adhocchannel);
 177         lbs_pr_debug(1, "curbssparams.channel = %d\n",
 178                adapter->curbssparams.channel);
 179         lbs_pr_debug(1, "curbssparams.band = %d\n", adapter->curbssparams.band);
 180
 181         ret = libertas_prepare_and_send_command(priv, cmd_802_11_ad_hoc_start,
 182                                     0, cmd_option_waitforrsp, 0, adhocssid);
 183
 184         return ret;
 185 }
 186
 187 /**
 188  *  @brief Join an adhoc network found in a previous scan
 189  *
 190  *  @param priv         A pointer to wlan_private structure
 191  *  @param pbssdesc     Pointer to a BSS descriptor found in a previous scan
 192  *                      to attempt to join
 193  *
 194  *  @return             0--success, -1--fail
 195  */
 196 int libertas_join_adhoc_network(wlan_private * priv, struct bss_descriptor * pbssdesc)
 197 {
 198         wlan_adapter *adapter = priv->adapter;
 199         int ret = 0;
 200
 201         lbs_pr_debug(1, "libertas_join_adhoc_network: CurBss.ssid =%s\n",
 202                adapter->curbssparams.ssid.ssid);
 203         lbs_pr_debug(1, "libertas_join_adhoc_network: CurBss.ssid_len =%u\n",
 204                adapter->curbssparams.ssid.ssidlength);
 205         lbs_pr_debug(1, "libertas_join_adhoc_network: ssid =%s\n", pbssdesc->ssid.ssid);
 206         lbs_pr_debug(1, "libertas_join_adhoc_network: ssid len =%u\n",
 207                pbssdesc->ssid.ssidlength);
 208
 209         /* check if the requested SSID is already joined */
 210         if (adapter->curbssparams.ssid.ssidlength
 211             && !libertas_SSID_cmp(&pbssdesc->ssid, &adapter->curbssparams.ssid)
 212             && (adapter->curbssparams.bssdescriptor.inframode ==
 213                 wlan802_11ibss)) {
 214
 215         lbs_pr_debug(1,
 216                        "ADHOC_J_CMD: New ad-hoc SSID is the same as current, "
 217                        "not attempting to re-join");
 218
 219                 return -1;
 220         }
 221
 222         /*Use shortpreamble only when both creator and card supports
 223            short preamble */
 224         if (!pbssdesc->cap.shortpreamble || !adapter->capinfo.shortpreamble) {
 225                 lbs_pr_debug(1, "AdhocJoin: Long preamble\n");
 226                 adapter->preamble = cmd_type_long_preamble;
 227         } else {
 228                 lbs_pr_debug(1, "AdhocJoin: Short preamble\n");
 229                 adapter->preamble = cmd_type_short_preamble;
 230         }
 231
 232         libertas_set_radio_control(priv);
 233
 234         lbs_pr_debug(1, "curbssparams.channel = %d\n",
 235                adapter->curbssparams.channel);
 236         lbs_pr_debug(1, "curbssparams.band = %c\n", adapter->curbssparams.band);
 237
 238         adapter->adhoccreate = 0;
 239
 240         ret = libertas_prepare_and_send_command(priv, cmd_802_11_ad_hoc_join,
 241                                     0, cmd_option_waitforrsp,
 242                                     OID_802_11_SSID, pbssdesc);
 243
 244         return ret;
 245 }
 246
 247 int libertas_stop_adhoc_network(wlan_private * priv)
 248 {
 249         return libertas_prepare_and_send_command(priv, cmd_802_11_ad_hoc_stop,
 250                                      0, cmd_option_waitforrsp, 0, NULL);
 251 }
 252
 253 /**
 254  *  @brief Send Deauthentication Request
 255  *
 256  *  @param priv      A pointer to wlan_private structure
 257  *  @return          0--success, -1--fail
 258  */
 259 int libertas_send_deauthentication(wlan_private * priv)
 260 {
 261         return libertas_prepare_and_send_command(priv, cmd_802_11_deauthenticate,
 262                                      0, cmd_option_waitforrsp, 0, NULL);
 263 }
 264
 265 /**
 266  *  @brief Set Idle Off
 267  *
 268  *  @param priv         A pointer to wlan_private structure
 269  *  @return             0 --success, otherwise fail
 270  */
 271 int libertas_idle_off(wlan_private * priv)
 272 {
 273         wlan_adapter *adapter = priv->adapter;
 274         int ret = 0;
 275         const u8 zeromac[] = { 0, 0, 0, 0, 0, 0 };
 276         int i;
 277
 278         ENTER();
 279
 280         if (adapter->connect_status == libertas_disconnected) {
 281                 if (adapter->inframode == wlan802_11infrastructure) {
 282                         if (memcmp(adapter->previousbssid, zeromac,
 283                                    sizeof(zeromac)) != 0) {
 284
 285                                 lbs_pr_debug(1, "Previous SSID = %s\n",
 286                                        adapter->previousssid.ssid);
 287                                 lbs_pr_debug(1, "Previous BSSID = "
 288                                        "%02x:%02x:%02x:%02x:%02x:%02x:\n",
 289                                        adapter->previousbssid[0],
 290                                        adapter->previousbssid[1],
 291                                        adapter->previousbssid[2],
 292                                        adapter->previousbssid[3],
 293                                        adapter->previousbssid[4],
 294                                        adapter->previousbssid[5]);
 295
 296                                 i = libertas_find_SSID_in_list(adapter,
 297                                                    &adapter->previousssid,
 298                                                    adapter->previousbssid,
 299                                                    adapter->inframode);
 300
 301                                 if (i < 0) {
 302                                         libertas_send_specific_BSSID_scan(priv,
 303                                                               adapter->
 304                                                               previousbssid,
 305                                                               1);
 306                                         i = libertas_find_SSID_in_list(adapter,
 307                                                            &adapter->
 308                                                            previousssid,
 309                                                            adapter->
 310                                                            previousbssid,
 311                                                            adapter->
 312                                                            inframode);
 313                                 }
 314
 315                                 if (i < 0) {
 316                                         /* If the BSSID could not be found, try just the SSID */
 317                                         i = libertas_find_SSID_in_list(adapter,
 318                                                            &adapter->
 319                                                            previousssid, NULL,
 320                                                            adapter->
 321                                                            inframode);
 322                                 }
 323
 324                                 if (i < 0) {
 325                                         libertas_send_specific_SSID_scan(priv,
 326                                                              &adapter->
 327                                                              previousssid,
 328                                                              1);
 329                                         i = libertas_find_SSID_in_list(adapter,
 330                                                            &adapter->
 331                                                            previousssid, NULL,
 332                                                            adapter->
 333                                                            inframode);
 334                                 }
 335
 336                                 if (i >= 0) {
 337                                         ret =
 338                                             wlan_associate(priv,
 339                                                            &adapter->
 340                                                            scantable[i]);
 341                                 }
 342                         }
 343                 } else if (adapter->inframode == wlan802_11ibss) {
 344                         ret = libertas_prepare_and_send_command(priv,
 345                                                     cmd_802_11_ad_hoc_start,
 346                                                     0,
 347                                                     cmd_option_waitforrsp,
 348                                                     0, &adapter->previousssid);
 349                 }
 350         }
 351         /* else it is connected */
 352
 353         lbs_pr_debug(1, "\nwlanidle is off");
 354         LEAVE();
 355         return ret;
 356 }
 357
 358 /**
 359  *  @brief Set Idle On
 360  *
 361  *  @param priv         A pointer to wlan_private structure
 362  *  @return             0 --success, otherwise fail
 363  */
 364 int libertas_idle_on(wlan_private * priv)
 365 {
 366         wlan_adapter *adapter = priv->adapter;
 367         int ret = 0;
 368
 369         if (adapter->connect_status == libertas_connected) {
 370                 if (adapter->inframode == wlan802_11infrastructure) {
 371                         lbs_pr_debug(1, "Previous SSID = %s\n",
 372                                adapter->previousssid.ssid);
 373                         memmove(&adapter->previousssid,
 374                                 &adapter->curbssparams.ssid,
 375                                 sizeof(struct WLAN_802_11_SSID));
 376                         libertas_send_deauth(priv);
 377
 378                 } else if (adapter->inframode == wlan802_11ibss) {
 379                         ret = libertas_stop_adhoc_network(priv);
 380                 }
 381
 382         }
 383
 384         lbs_pr_debug(1, "\nwlanidle is on");
 385
 386         return ret;
 387 }
 388
 389 /**
 390  *  @brief This function prepares command of authenticate.
 391  *
 392  *  @param priv      A pointer to wlan_private structure
 393  *  @param cmd       A pointer to cmd_ds_command structure
 394  *  @param pdata_buf Void cast of pointer to a BSSID to authenticate with
 395  *
 396  *  @return         0 or -1
 397  */
 398 int libertas_cmd_80211_authenticate(wlan_private * priv,
 399                                  struct cmd_ds_command *cmd,
 400                                  void *pdata_buf)
 401 {
 402         wlan_adapter *adapter = priv->adapter;
 403         struct cmd_ds_802_11_authenticate *pauthenticate = &cmd->params.auth;
 404         int ret = -1;
 405         u8 *bssid = pdata_buf;
 406
 407         cmd->command = cpu_to_le16(cmd_802_11_authenticate);
 408         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_authenticate)
 409                                 + S_DS_GEN);
 410
 411         /* translate auth mode to 802.11 defined wire value */
 412         switch (adapter->secinfo.auth_mode) {
 413         case IW_AUTH_ALG_OPEN_SYSTEM:
 414                 pauthenticate->authtype = 0x00;
 415                 break;
 416         case IW_AUTH_ALG_SHARED_KEY:
 417                 pauthenticate->authtype = 0x01;
 418                 break;
 419         case IW_AUTH_ALG_LEAP:
 420                 pauthenticate->authtype = 0x80;
 421                 break;
 422         default:
 423                 lbs_pr_debug(1, "AUTH_CMD: invalid auth alg 0x%X\n",
 424                              adapter->secinfo.auth_mode);
 425                 goto out;
 426         }
 427
 428         memcpy(pauthenticate->macaddr, bssid, ETH_ALEN);
 429
 430         lbs_pr_debug(1, "AUTH_CMD: Bssid is : %x:%x:%x:%x:%x:%x\n",
 431                bssid[0], bssid[1], bssid[2], bssid[3], bssid[4], bssid[5]);
 432         ret = 0;
 433
 434 out:
 435         return ret;
 436 }
 437
 438 int libertas_cmd_80211_deauthenticate(wlan_private * priv,
 439                                    struct cmd_ds_command *cmd)
 440 {
 441         wlan_adapter *adapter = priv->adapter;
 442         struct cmd_ds_802_11_deauthenticate *dauth = &cmd->params.deauth;
 443
 444         ENTER();
 445
 446         cmd->command = cpu_to_le16(cmd_802_11_deauthenticate);
 447         cmd->size =
 448             cpu_to_le16(sizeof(struct cmd_ds_802_11_deauthenticate) +
 449                              S_DS_GEN);
 450
 451         /* set AP MAC address */
 452         memmove(dauth->macaddr, adapter->curbssparams.bssid,
 453                 ETH_ALEN);
 454
 455         /* Reason code 3 = Station is leaving */
 456 #define REASON_CODE_STA_LEAVING 3
 457         dauth->reasoncode = cpu_to_le16(REASON_CODE_STA_LEAVING);
 458
 459         LEAVE();
 460         return 0;
 461 }
 462
 463 int libertas_cmd_80211_associate(wlan_private * priv,
 464                               struct cmd_ds_command *cmd, void *pdata_buf)
 465 {
 466         wlan_adapter *adapter = priv->adapter;
 467         struct cmd_ds_802_11_associate *passo = &cmd->params.associate;
 468         int ret = 0;
 469         struct bss_descriptor *pbssdesc;
 470         u8 *card_rates;
 471         u8 *pos;
 472         int card_rates_size;
 473         u16 tmpcap;
 474         struct mrvlietypes_ssidparamset *ssid;
 475         struct mrvlietypes_phyparamset *phy;
 476         struct mrvlietypes_ssparamset *ss;
 477         struct mrvlietypes_ratesparamset *rates;
 478         struct mrvlietypes_rsnparamset *rsn;
 479
 480         ENTER();
 481
 482         pbssdesc = pdata_buf;
 483         pos = (u8 *) passo;
 484
 485         if (!adapter) {
 486                 ret = -1;
 487                 goto done;
 488         }
 489
 490         cmd->command = cpu_to_le16(cmd_802_11_associate);
 491
 492         /* Save so we know which BSS Desc to use in the response handler */
 493         adapter->pattemptedbssdesc = pbssdesc;
 494
 495         memcpy(passo->peerstaaddr,
 496                pbssdesc->macaddress, sizeof(passo->peerstaaddr));
 497         pos += sizeof(passo->peerstaaddr);
 498
 499         /* set the listen interval */
 500         passo->listeninterval = adapter->listeninterval;
 501
 502         pos += sizeof(passo->capinfo);
 503         pos += sizeof(passo->listeninterval);
 504         pos += sizeof(passo->bcnperiod);
 505         pos += sizeof(passo->dtimperiod);
 506
 507         ssid = (struct mrvlietypes_ssidparamset *) pos;
 508         ssid->header.type = cpu_to_le16(TLV_TYPE_SSID);
 509         ssid->header.len = pbssdesc->ssid.ssidlength;
 510         memcpy(ssid->ssid, pbssdesc->ssid.ssid, ssid->header.len);
 511         pos += sizeof(ssid->header) + ssid->header.len;
 512         ssid->header.len = cpu_to_le16(ssid->header.len);
 513
 514         phy = (struct mrvlietypes_phyparamset *) pos;
 515         phy->header.type = cpu_to_le16(TLV_TYPE_PHY_DS);
 516         phy->header.len = sizeof(phy->fh_ds.dsparamset);
 517         memcpy(&phy->fh_ds.dsparamset,
 518                &pbssdesc->phyparamset.dsparamset.currentchan,
 519                sizeof(phy->fh_ds.dsparamset));
 520         pos += sizeof(phy->header) + phy->header.len;
 521         phy->header.len = cpu_to_le16(phy->header.len);
 522
 523         ss = (struct mrvlietypes_ssparamset *) pos;
 524         ss->header.type = cpu_to_le16(TLV_TYPE_CF);
 525         ss->header.len = sizeof(ss->cf_ibss.cfparamset);
 526         pos += sizeof(ss->header) + ss->header.len;
 527         ss->header.len = cpu_to_le16(ss->header.len);
 528
 529         rates = (struct mrvlietypes_ratesparamset *) pos;
 530         rates->header.type = cpu_to_le16(TLV_TYPE_RATES);
 531
 532         memcpy(&rates->rates, &pbssdesc->libertas_supported_rates, WLAN_SUPPORTED_RATES);
 533
 534         card_rates = libertas_supported_rates;
 535         card_rates_size = sizeof(libertas_supported_rates);
 536
 537         if (get_common_rates(adapter, rates->rates, WLAN_SUPPORTED_RATES,
 538                              card_rates, card_rates_size)) {
 539                 ret = -1;
 540                 goto done;
 541         }
 542
 543         rates->header.len = min_t(size_t, strlen(rates->rates), WLAN_SUPPORTED_RATES);
 544         adapter->curbssparams.numofrates = rates->header.len;
 545
 546         pos += sizeof(rates->header) + rates->header.len;
 547         rates->header.len = cpu_to_le16(rates->header.len);
 548
 549         if (adapter->secinfo.WPAenabled || adapter->secinfo.WPA2enabled) {
 550                 rsn = (struct mrvlietypes_rsnparamset *) pos;
 551                 rsn->header.type = (u16) adapter->wpa_ie[0];    /* WPA_IE or WPA2_IE */
 552                 rsn->header.type = cpu_to_le16(rsn->header.type);
 553                 rsn->header.len = (u16) adapter->wpa_ie[1];
 554                 memcpy(rsn->rsnie, &adapter->wpa_ie[2], rsn->header.len);
 555                 lbs_dbg_hex("ASSOC_CMD: RSN IE", (u8 *) rsn,
 556                         sizeof(rsn->header) + rsn->header.len);
 557                 pos += sizeof(rsn->header) + rsn->header.len;
 558                 rsn->header.len = cpu_to_le16(rsn->header.len);
 559         }
 560
 561         /* update curbssparams */
 562         adapter->curbssparams.channel =
 563             (pbssdesc->phyparamset.dsparamset.currentchan);
 564
 565         /* Copy the infra. association rates into Current BSS state structure */
 566         memcpy(&adapter->curbssparams.datarates, &rates->rates,
 567                min_t(size_t, sizeof(adapter->curbssparams.datarates), rates->header.len));
 568
 569         lbs_pr_debug(1, "ASSOC_CMD: rates->header.len = %d\n", rates->header.len);
 570
 571         /* set IBSS field */
 572         if (pbssdesc->inframode == wlan802_11infrastructure) {
 573 #define CAPINFO_ESS_MODE 1
 574                 passo->capinfo.ess = CAPINFO_ESS_MODE;
 575         }
 576
 577         if (libertas_parse_dnld_countryinfo_11d(priv)) {
 578                 ret = -1;
 579                 goto done;
 580         }
 581
 582         cmd->size = cpu_to_le16((u16) (pos - (u8 *) passo) + S_DS_GEN);
 583
 584         /* set the capability info at last */
 585         memcpy(&tmpcap, &pbssdesc->cap, sizeof(passo->capinfo));
 586         tmpcap &= CAPINFO_MASK;
 587         lbs_pr_debug(1, "ASSOC_CMD: tmpcap=%4X CAPINFO_MASK=%4X\n",
 588                tmpcap, CAPINFO_MASK);
 589         tmpcap = cpu_to_le16(tmpcap);
 590         memcpy(&passo->capinfo, &tmpcap, sizeof(passo->capinfo));
 591
 592       done:
 593         LEAVE();
 594         return ret;
 595 }
 596
 597 int libertas_cmd_80211_ad_hoc_start(wlan_private * priv,
 598                                  struct cmd_ds_command *cmd, void *pssid)
 599 {
 600         wlan_adapter *adapter = priv->adapter;
 601         struct cmd_ds_802_11_ad_hoc_start *adhs = &cmd->params.ads;
 602         int ret = 0;
 603         int cmdappendsize = 0;
 604         int i;
 605         u16 tmpcap;
 606         struct bss_descriptor *pbssdesc;
 607         struct WLAN_802_11_SSID *ssid = pssid;
 608
 609         ENTER();
 610
 611         if (!adapter) {
 612                 ret = -1;
 613                 goto done;
 614         }
 615
 616         cmd->command = cpu_to_le16(cmd_802_11_ad_hoc_start);
 617
 618         pbssdesc = &adapter->curbssparams.bssdescriptor;
 619         adapter->pattemptedbssdesc = pbssdesc;
 620
 621         /*
 622          * Fill in the parameters for 2 data structures:
 623          *   1. cmd_ds_802_11_ad_hoc_start command
 624          *   2. adapter->scantable[i]
 625          *
 626          * Driver will fill up SSID, bsstype,IBSS param, Physical Param,
 627          *   probe delay, and cap info.
 628          *
 629          * Firmware will fill up beacon period, DTIM, Basic rates
 630          *   and operational rates.
 631          */
 632
 633         memset(adhs->SSID, 0, IW_ESSID_MAX_SIZE);
 634
 635         memcpy(adhs->SSID, ssid->ssid, ssid->ssidlength);
 636
 637         lbs_pr_debug(1, "ADHOC_S_CMD: SSID = %s\n", adhs->SSID);
 638
 639         memset(pbssdesc->ssid.ssid, 0, IW_ESSID_MAX_SIZE);
 640         memcpy(pbssdesc->ssid.ssid, ssid->ssid, ssid->ssidlength);
 641
 642         pbssdesc->ssid.ssidlength = ssid->ssidlength;
 643
 644         /* set the BSS type */
 645         adhs->bsstype = cmd_bss_type_ibss;
 646         pbssdesc->inframode = wlan802_11ibss;
 647         adhs->beaconperiod = adapter->beaconperiod;
 648
 649         /* set Physical param set */
 650 #define DS_PARA_IE_ID   3
 651 #define DS_PARA_IE_LEN  1
 652
 653         adhs->phyparamset.dsparamset.elementid = DS_PARA_IE_ID;
 654         adhs->phyparamset.dsparamset.len = DS_PARA_IE_LEN;
 655
 656         WARN_ON(!adapter->adhocchannel);
 657
 658         lbs_pr_debug(1, "ADHOC_S_CMD: Creating ADHOC on channel %d\n",
 659                adapter->adhocchannel);
 660
 661         adapter->curbssparams.channel = adapter->adhocchannel;
 662
 663         pbssdesc->channel = adapter->adhocchannel;
 664         adhs->phyparamset.dsparamset.currentchan = adapter->adhocchannel;
 665
 666         memcpy(&pbssdesc->phyparamset,
 667                &adhs->phyparamset, sizeof(union ieeetypes_phyparamset));
 668
 669         /* set IBSS param set */
 670 #define IBSS_PARA_IE_ID   6
 671 #define IBSS_PARA_IE_LEN  2
 672
 673         adhs->ssparamset.ibssparamset.elementid = IBSS_PARA_IE_ID;
 674         adhs->ssparamset.ibssparamset.len = IBSS_PARA_IE_LEN;
 675         adhs->ssparamset.ibssparamset.atimwindow = adapter->atimwindow;
 676         memcpy(&pbssdesc->ssparamset,
 677                &adhs->ssparamset, sizeof(union IEEEtypes_ssparamset));
 678
 679         /* set capability info */
 680         adhs->cap.ess = 0;
 681         adhs->cap.ibss = 1;
 682         pbssdesc->cap.ibss = 1;
 683
 684         /* probedelay */
 685         adhs->probedelay = cpu_to_le16(cmd_scan_probe_delay_time);
 686
 687         /* set up privacy in adapter->scantable[i] */
 688         if (adapter->secinfo.wep_enabled) {
 689                 lbs_pr_debug(1, "ADHOC_S_CMD: WEP enabled, setting privacy on\n");
 690                 pbssdesc->privacy = wlan802_11privfilter8021xWEP;
 691                 adhs->cap.privacy = AD_HOC_CAP_PRIVACY_ON;
 692         } else {
 693                 lbs_pr_debug(1, "ADHOC_S_CMD: WEP disabled, setting privacy off\n");
 694                 pbssdesc->privacy = wlan802_11privfilteracceptall;
 695         }
 696
 697         memset(adhs->datarate, 0, sizeof(adhs->datarate));
 698
 699         if (adapter->adhoc_grate_enabled) {
 700                 memcpy(adhs->datarate, libertas_adhoc_rates_g,
 701                        min(sizeof(adhs->datarate), sizeof(libertas_adhoc_rates_g)));
 702         } else {
 703                 memcpy(adhs->datarate, libertas_adhoc_rates_b,
 704                        min(sizeof(adhs->datarate), sizeof(libertas_adhoc_rates_b)));
 705         }
 706
 707         /* Find the last non zero */
 708         for (i = 0; i < sizeof(adhs->datarate) && adhs->datarate[i]; i++) ;
 709
 710         adapter->curbssparams.numofrates = i;
 711
 712         /* Copy the ad-hoc creating rates into Current BSS state structure */
 713         memcpy(&adapter->curbssparams.datarates,
 714                &adhs->datarate, adapter->curbssparams.numofrates);
 715
 716         lbs_pr_debug(1, "ADHOC_S_CMD: rates=%02x %02x %02x %02x \n",
 717                adhs->datarate[0], adhs->datarate[1],
 718                adhs->datarate[2], adhs->datarate[3]);
 719
 720         lbs_pr_debug(1, "ADHOC_S_CMD: AD HOC Start command is ready\n");
 721
 722         if (libertas_create_dnld_countryinfo_11d(priv)) {
 723                 lbs_pr_debug(1, "ADHOC_S_CMD: dnld_countryinfo_11d failed\n");
 724                 ret = -1;
 725                 goto done;
 726         }
 727
 728         cmd->size =
 729             cpu_to_le16(sizeof(struct cmd_ds_802_11_ad_hoc_start)
 730                              + S_DS_GEN + cmdappendsize);
 731
 732         memcpy(&tmpcap, &adhs->cap, sizeof(u16));
 733         tmpcap = cpu_to_le16(tmpcap);
 734         memcpy(&adhs->cap, &tmpcap, sizeof(u16));
 735
 736         ret = 0;
 737 done:
 738         LEAVE();
 739         return ret;
 740 }
 741
 742 int libertas_cmd_80211_ad_hoc_stop(wlan_private * priv,
 743                                 struct cmd_ds_command *cmd)
 744 {
 745         cmd->command = cpu_to_le16(cmd_802_11_ad_hoc_stop);
 746         cmd->size = cpu_to_le16(S_DS_GEN);
 747
 748         return 0;
 749 }
 750
 751 int libertas_cmd_80211_ad_hoc_join(wlan_private * priv,
 752                                 struct cmd_ds_command *cmd, void *pdata_buf)
 753 {
 754         wlan_adapter *adapter = priv->adapter;
 755         struct cmd_ds_802_11_ad_hoc_join *padhocjoin = &cmd->params.adj;
 756         struct bss_descriptor *pbssdesc = pdata_buf;
 757         int cmdappendsize = 0;
 758         int ret = 0;
 759         u8 *card_rates;
 760         int card_rates_size;
 761         u16 tmpcap;
 762         int i;
 763
 764         ENTER();
 765
 766         adapter->pattemptedbssdesc = pbssdesc;
 767
 768         cmd->command = cpu_to_le16(cmd_802_11_ad_hoc_join);
 769
 770         padhocjoin->bssdescriptor.bsstype = cmd_bss_type_ibss;
 771
 772         padhocjoin->bssdescriptor.beaconperiod = pbssdesc->beaconperiod;
 773
 774         memcpy(&padhocjoin->bssdescriptor.BSSID,
 775                &pbssdesc->macaddress, ETH_ALEN);
 776
 777         memcpy(&padhocjoin->bssdescriptor.SSID,
 778                &pbssdesc->ssid.ssid, pbssdesc->ssid.ssidlength);
 779
 780         memcpy(&padhocjoin->bssdescriptor.phyparamset,
 781                &pbssdesc->phyparamset, sizeof(union ieeetypes_phyparamset));
 782
 783         memcpy(&padhocjoin->bssdescriptor.ssparamset,
 784                &pbssdesc->ssparamset, sizeof(union IEEEtypes_ssparamset));
 785
 786         memcpy(&tmpcap, &pbssdesc->cap, sizeof(struct ieeetypes_capinfo));
 787         tmpcap &= CAPINFO_MASK;
 788
 789         lbs_pr_debug(1, "ADHOC_J_CMD: tmpcap=%4X CAPINFO_MASK=%4X\n",
 790                tmpcap, CAPINFO_MASK);
 791         memcpy(&padhocjoin->bssdescriptor.cap, &tmpcap,
 792                sizeof(struct ieeetypes_capinfo));
 793
 794         /* information on BSSID descriptor passed to FW */
 795     lbs_pr_debug(1,
 796                "ADHOC_J_CMD: BSSID = %2x-%2x-%2x-%2x-%2x-%2x, SSID = %s\n",
 797                padhocjoin->bssdescriptor.BSSID[0],
 798                padhocjoin->bssdescriptor.BSSID[1],
 799                padhocjoin->bssdescriptor.BSSID[2],
 800                padhocjoin->bssdescriptor.BSSID[3],
 801                padhocjoin->bssdescriptor.BSSID[4],
 802                padhocjoin->bssdescriptor.BSSID[5],
 803                padhocjoin->bssdescriptor.SSID);
 804
 805         lbs_pr_debug(1, "ADHOC_J_CMD: Data Rate = %x\n",
 806                (u32) padhocjoin->bssdescriptor.datarates);
 807
 808         /* failtimeout */
 809         padhocjoin->failtimeout = cpu_to_le16(MRVDRV_ASSOCIATION_TIME_OUT);
 810
 811         /* probedelay */
 812         padhocjoin->probedelay =
 813             cpu_to_le16(cmd_scan_probe_delay_time);
 814
 815         /* Copy Data rates from the rates recorded in scan response */
 816         memset(padhocjoin->bssdescriptor.datarates, 0,
 817                sizeof(padhocjoin->bssdescriptor.datarates));
 818         memcpy(padhocjoin->bssdescriptor.datarates, pbssdesc->datarates,
 819                min(sizeof(padhocjoin->bssdescriptor.datarates),
 820                    sizeof(pbssdesc->datarates)));
 821
 822         card_rates = libertas_supported_rates;
 823         card_rates_size = sizeof(libertas_supported_rates);
 824
 825         adapter->curbssparams.channel = pbssdesc->channel;
 826
 827         if (get_common_rates(adapter, padhocjoin->bssdescriptor.datarates,
 828                              sizeof(padhocjoin->bssdescriptor.datarates),
 829                              card_rates, card_rates_size)) {
 830                 lbs_pr_debug(1, "ADHOC_J_CMD: get_common_rates returns error.\n");
 831                 ret = -1;
 832                 goto done;
 833         }
 834
 835         /* Find the last non zero */
 836         for (i = 0; i < sizeof(padhocjoin->bssdescriptor.datarates)
 837              && padhocjoin->bssdescriptor.datarates[i]; i++) ;
 838
 839         adapter->curbssparams.numofrates = i;
 840
 841         /*
 842          * Copy the adhoc joining rates to Current BSS State structure
 843          */
 844         memcpy(adapter->curbssparams.datarates,
 845                padhocjoin->bssdescriptor.datarates,
 846                adapter->curbssparams.numofrates);
 847
 848         padhocjoin->bssdescriptor.ssparamset.ibssparamset.atimwindow =
 849             cpu_to_le16(pbssdesc->atimwindow);
 850
 851         if (adapter->secinfo.wep_enabled) {
 852                 padhocjoin->bssdescriptor.cap.privacy = AD_HOC_CAP_PRIVACY_ON;
 853         }
 854
 855         if (adapter->psmode == wlan802_11powermodemax_psp) {
 856                 /* wake up first */
 857                 enum WLAN_802_11_POWER_MODE Localpsmode;
 858
 859                 Localpsmode = wlan802_11powermodecam;
 860                 ret = libertas_prepare_and_send_command(priv,
 861                                             cmd_802_11_ps_mode,
 862                                             cmd_act_set,
 863                                             0, 0, &Localpsmode);
 864
 865                 if (ret) {
 866                         ret = -1;
 867                         goto done;
 868                 }
 869         }
 870
 871         if (libertas_parse_dnld_countryinfo_11d(priv)) {
 872                 ret = -1;
 873                 goto done;
 874         }
 875
 876         cmd->size =
 877             cpu_to_le16(sizeof(struct cmd_ds_802_11_ad_hoc_join)
 878                              + S_DS_GEN + cmdappendsize);
 879
 880         memcpy(&tmpcap, &padhocjoin->bssdescriptor.cap,
 881                sizeof(struct ieeetypes_capinfo));
 882         tmpcap = cpu_to_le16(tmpcap);
 883
 884         memcpy(&padhocjoin->bssdescriptor.cap,
 885                &tmpcap, sizeof(struct ieeetypes_capinfo));
 886
 887       done:
 888         LEAVE();
 889         return ret;
 890 }
 891
 892 int libertas_ret_80211_associate(wlan_private * priv,
 893                               struct cmd_ds_command *resp)
 894 {
 895         wlan_adapter *adapter = priv->adapter;
 896         int ret = 0;
 897         union iwreq_data wrqu;
 898         struct ieeetypes_assocrsp *passocrsp;
 899         struct bss_descriptor *pbssdesc;
 900
 901         ENTER();
 902
 903         passocrsp = (struct ieeetypes_assocrsp *) & resp->params;
 904
 905         if (passocrsp->statuscode) {
 906
 907                 libertas_mac_event_disconnected(priv);
 908
 909         lbs_pr_debug(1,
 910                        "ASSOC_RESP: Association failed, status code = %d\n",
 911                        passocrsp->statuscode);
 912
 913                 ret = -1;
 914                 goto done;
 915         }
 916
 917         lbs_dbg_hex("ASSOC_RESP:", (void *)&resp->params,
 918                 le16_to_cpu(resp->size) - S_DS_GEN);
 919
 920         /* Send a Media Connected event, according to the Spec */
 921         adapter->connect_status = libertas_connected;
 922
 923         /* Set the attempted BSSID Index to current */
 924         pbssdesc = adapter->pattemptedbssdesc;
 925
 926         lbs_pr_debug(1, "ASSOC_RESP: %s\n", pbssdesc->ssid.ssid);
 927
 928         /* Set the new SSID to current SSID */
 929         memcpy(&adapter->curbssparams.ssid,
 930                &pbssdesc->ssid, sizeof(struct WLAN_802_11_SSID));
 931
 932         /* Set the new BSSID (AP's MAC address) to current BSSID */
 933         memcpy(adapter->curbssparams.bssid,
 934                pbssdesc->macaddress, ETH_ALEN);
 935
 936         /* Make a copy of current BSSID descriptor */
 937         memcpy(&adapter->curbssparams.bssdescriptor,
 938                pbssdesc, sizeof(struct bss_descriptor));
 939
 940         lbs_pr_debug(1, "ASSOC_RESP: currentpacketfilter is %x\n",
 941                adapter->currentpacketfilter);
 942
 943         adapter->SNR[TYPE_RXPD][TYPE_AVG] = 0;
 944         adapter->NF[TYPE_RXPD][TYPE_AVG] = 0;
 945
 946         memset(adapter->rawSNR, 0x00, sizeof(adapter->rawSNR));
 947         memset(adapter->rawNF, 0x00, sizeof(adapter->rawNF));
 948         adapter->nextSNRNF = 0;
 949         adapter->numSNRNF = 0;
 950
 951         netif_carrier_on(priv->wlan_dev.netdev);
 952         netif_wake_queue(priv->wlan_dev.netdev);
 953
 954         lbs_pr_debug(1, "ASSOC_RESP: Associated \n");
 955
 956         memcpy(wrqu.ap_addr.sa_data, adapter->curbssparams.bssid, ETH_ALEN);
 957         wrqu.ap_addr.sa_family = ARPHRD_ETHER;
 958         wireless_send_event(priv->wlan_dev.netdev, SIOCGIWAP, &wrqu, NULL);
 959
 960       done:
 961         LEAVE();
 962         return ret;
 963 }
 964
 965 int libertas_ret_80211_disassociate(wlan_private * priv,
 966                                  struct cmd_ds_command *resp)
 967 {
 968         ENTER();
 969
 970         libertas_mac_event_disconnected(priv);
 971
 972         LEAVE();
 973         return 0;
 974 }
 975
 976 int libertas_ret_80211_ad_hoc_start(wlan_private * priv,
 977                                  struct cmd_ds_command *resp)
 978 {
 979         wlan_adapter *adapter = priv->adapter;
 980         int ret = 0;
 981         u16 command = le16_to_cpu(resp->command);
 982         u16 result = le16_to_cpu(resp->result);
 983         struct cmd_ds_802_11_ad_hoc_result *padhocresult;
 984         union iwreq_data wrqu;
 985         struct bss_descriptor *pbssdesc;
 986
 987         ENTER();
 988
 989         padhocresult = &resp->params.result;
 990
 991         lbs_pr_debug(1, "ADHOC_S_RESP: size = %d\n", le16_to_cpu(resp->size));
 992         lbs_pr_debug(1, "ADHOC_S_RESP: command = %x\n", command);
 993         lbs_pr_debug(1, "ADHOC_S_RESP: result = %x\n", result);
 994
 995         pbssdesc = adapter->pattemptedbssdesc;
 996
 997         /*
 998          * Join result code 0 --> SUCCESS
 999          */
1000         if (result) {
1001                 lbs_pr_debug(1, "ADHOC_RESP failed\n");
1002                 if (adapter->connect_status == libertas_connected) {
1003                         libertas_mac_event_disconnected(priv);
1004                 }
1005
1006                 memset(&adapter->curbssparams.bssdescriptor,
1007                        0x00, sizeof(adapter->curbssparams.bssdescriptor));
1008
1009                 LEAVE();
1010                 return -1;
1011         }
1012
1013         /*
1014          * Now the join cmd should be successful
1015          * If BSSID has changed use SSID to compare instead of BSSID
1016          */
1017         lbs_pr_debug(1, "ADHOC_J_RESP  %s\n", pbssdesc->ssid.ssid);
1018
1019         /* Send a Media Connected event, according to the Spec */
1020         adapter->connect_status = libertas_connected;
1021
1022         if (command == cmd_ret_802_11_ad_hoc_start) {
1023                 /* Update the created network descriptor with the new BSSID */
1024                 memcpy(pbssdesc->macaddress,
1025                        padhocresult->BSSID, ETH_ALEN);
1026         } else {
1027
1028                 /* Make a copy of current BSSID descriptor, only needed for join since
1029                  *   the current descriptor is already being used for adhoc start
1030                  */
1031                 memmove(&adapter->curbssparams.bssdescriptor,
1032                         pbssdesc, sizeof(struct bss_descriptor));
1033         }
1034
1035         /* Set the BSSID from the joined/started descriptor */
1036         memcpy(&adapter->curbssparams.bssid,
1037                pbssdesc->macaddress, ETH_ALEN);
1038
1039         /* Set the new SSID to current SSID */
1040         memcpy(&adapter->curbssparams.ssid,
1041                &pbssdesc->ssid, sizeof(struct WLAN_802_11_SSID));
1042
1043         netif_carrier_on(priv->wlan_dev.netdev);
1044         netif_wake_queue(priv->wlan_dev.netdev);
1045
1046         memset(&wrqu, 0, sizeof(wrqu));
1047         memcpy(wrqu.ap_addr.sa_data, adapter->curbssparams.bssid, ETH_ALEN);
1048         wrqu.ap_addr.sa_family = ARPHRD_ETHER;
1049         wireless_send_event(priv->wlan_dev.netdev, SIOCGIWAP, &wrqu, NULL);
1050
1051         lbs_pr_debug(1, "ADHOC_RESP: - Joined/Started Ad Hoc\n");
1052         lbs_pr_debug(1, "ADHOC_RESP: channel = %d\n", adapter->adhocchannel);
1053         lbs_pr_debug(1, "ADHOC_RESP: BSSID = %02x:%02x:%02x:%02x:%02x:%02x\n",
1054                padhocresult->BSSID[0], padhocresult->BSSID[1],
1055                padhocresult->BSSID[2], padhocresult->BSSID[3],
1056                padhocresult->BSSID[4], padhocresult->BSSID[5]);
1057
1058         LEAVE();
1059         return ret;
1060 }
1061
1062 int libertas_ret_80211_ad_hoc_stop(wlan_private * priv,
1063                                 struct cmd_ds_command *resp)
1064 {
1065         ENTER();
1066
1067         libertas_mac_event_disconnected(priv);
1068
1069         LEAVE();
1070         return 0;
1071 }