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 /**
  19  *  @brief This function finds out the common rates between rate1 and rate2.
  20  *
  21  * It will fill common rates in rate1 as output if found.
  22  *
  23  * NOTE: Setting the MSB of the basic rates need to be taken
  24  *   care, either before or after calling this function
  25  *
  26  *  @param adapter     A pointer to wlan_adapter structure
  27  *  @param rate1       the buffer which keeps input and output
  28  *  @param rate1_size  the size of rate1 buffer
  29  *  @param rate2       the buffer which keeps rate2
  30  *  @param rate2_size  the size of rate2 buffer.
  31  *
  32  *  @return            0 or -1
  33  */
  34 static int get_common_rates(wlan_adapter * adapter, u8 * rate1,
  35                             int rate1_size, u8 * rate2, int rate2_size)
  36 {
  37         u8 *ptr = rate1;
  38         int ret = 0;
  39         u8 tmp[30];
  40         int i;
  41
  42         memset(&tmp, 0, sizeof(tmp));
  43         memcpy(&tmp, rate1, min_t(size_t, rate1_size, sizeof(tmp)));
  44         memset(rate1, 0, rate1_size);
  45
  46         /* Mask the top bit of the original values */
  47         for (i = 0; tmp[i] && i < sizeof(tmp); i++)
  48                 tmp[i] &= 0x7F;
  49
  50         for (i = 0; rate2[i] && i < rate2_size; i++) {
  51                 /* Check for Card Rate in tmp, excluding the top bit */
  52                 if (strchr(tmp, rate2[i] & 0x7F)) {
  53                         /* values match, so copy the Card Rate to rate1 */
  54                         *rate1++ = rate2[i];
  55                 }
  56         }
  57
  58         lbs_dbg_hex("rate1 (AP) rates:", tmp, sizeof(tmp));
  59         lbs_dbg_hex("rate2 (Card) rates:", rate2, rate2_size);
  60         lbs_dbg_hex("Common rates:", ptr, rate1_size);
  61         lbs_pr_debug(1, "Tx datarate is set to 0x%X\n", adapter->datarate);
  62
  63         if (!adapter->is_datarate_auto) {
  64                 while (*ptr) {
  65                         if ((*ptr & 0x7f) == adapter->datarate) {
  66                                 ret = 0;
  67                                 goto done;
  68                         }
  69                         ptr++;
  70                 }
  71                 lbs_pr_alert( "Previously set fixed data rate %#x isn't "
  72                        "compatible with the network.\n", adapter->datarate);
  73
  74                 ret = -1;
  75                 goto done;
  76         }
  77
  78         ret = 0;
  79 done:
  80         return ret;
  81 }
  82
  83 int libertas_send_deauth(wlan_private * priv)
  84 {
  85         wlan_adapter *adapter = priv->adapter;
  86         int ret = 0;
  87
  88         if (adapter->inframode == wlan802_11infrastructure &&
  89             adapter->connect_status == libertas_connected)
  90                 ret = libertas_send_deauthentication(priv);
  91         else
  92                 ret = -ENOTSUPP;
  93
  94         return ret;
  95 }
  96
  97 int libertas_do_adhocstop_ioctl(wlan_private * priv)
  98 {
  99         wlan_adapter *adapter = priv->adapter;
 100         int ret = 0;
 101
 102         if (adapter->inframode == wlan802_11ibss &&
 103             adapter->connect_status == libertas_connected)
 104                 ret = libertas_stop_adhoc_network(priv);
 105         else
 106                 ret = -ENOTSUPP;
 107
 108         return ret;
 109 }
 110
 111 /**
 112  *  @brief Associate to a specific BSS discovered in a scan
 113  *
 114  *  @param priv      A pointer to wlan_private structure
 115  *  @param pbssdesc  Pointer to the BSS descriptor to associate with.
 116  *
 117  *  @return          0-success, otherwise fail
 118  */
 119 int wlan_associate(wlan_private * priv, struct bss_descriptor * pbssdesc)
 120 {
 121         wlan_adapter *adapter = priv->adapter;
 122         int ret;
 123
 124         ENTER();
 125
 126         ret = libertas_prepare_and_send_command(priv, cmd_802_11_authenticate,
 127                                     0, cmd_option_waitforrsp,
 128                                     0, pbssdesc->macaddress);
 129
 130         if (ret) {
 131                 LEAVE();
 132                 return ret;
 133         }
 134
 135         /* set preamble to firmware */
 136         if (adapter->capinfo.shortpreamble && pbssdesc->cap.shortpreamble)
 137                 adapter->preamble = cmd_type_short_preamble;
 138         else
 139                 adapter->preamble = cmd_type_long_preamble;
 140
 141         libertas_set_radio_control(priv);
 142
 143         ret = libertas_prepare_and_send_command(priv, cmd_802_11_associate,
 144                                     0, cmd_option_waitforrsp, 0, pbssdesc);
 145
 146         LEAVE();
 147         return ret;
 148 }
 149
 150 /**
 151  *  @brief Start an Adhoc Network
 152  *
 153  *  @param priv         A pointer to wlan_private structure
 154  *  @param adhocssid    The ssid of the Adhoc Network
 155  *  @return             0--success, -1--fail
 156  */
 157 int libertas_start_adhoc_network(wlan_private * priv, struct WLAN_802_11_SSID *adhocssid)
 158 {
 159         wlan_adapter *adapter = priv->adapter;
 160         int ret = 0;
 161
 162         adapter->adhoccreate = 1;
 163
 164         if (!adapter->capinfo.shortpreamble) {
 165                 lbs_pr_debug(1, "AdhocStart: Long preamble\n");
 166                 adapter->preamble = cmd_type_long_preamble;
 167         } else {
 168                 lbs_pr_debug(1, "AdhocStart: Short preamble\n");
 169                 adapter->preamble = cmd_type_short_preamble;
 170         }
 171
 172         libertas_set_radio_control(priv);
 173
 174         lbs_pr_debug(1, "Adhoc channel = %d\n", adapter->adhocchannel);
 175         lbs_pr_debug(1, "curbssparams.channel = %d\n",
 176                adapter->curbssparams.channel);
 177         lbs_pr_debug(1, "curbssparams.band = %d\n", adapter->curbssparams.band);
 178
 179         ret = libertas_prepare_and_send_command(priv, cmd_802_11_ad_hoc_start,
 180                                     0, cmd_option_waitforrsp, 0, adhocssid);
 181
 182         return ret;
 183 }
 184
 185 /**
 186  *  @brief Join an adhoc network found in a previous scan
 187  *
 188  *  @param priv         A pointer to wlan_private structure
 189  *  @param pbssdesc     Pointer to a BSS descriptor found in a previous scan
 190  *                      to attempt to join
 191  *
 192  *  @return             0--success, -1--fail
 193  */
 194 int libertas_join_adhoc_network(wlan_private * priv, struct bss_descriptor * pbssdesc)
 195 {
 196         wlan_adapter *adapter = priv->adapter;
 197         int ret = 0;
 198
 199         lbs_pr_debug(1, "libertas_join_adhoc_network: CurBss.ssid =%s\n",
 200                adapter->curbssparams.ssid.ssid);
 201         lbs_pr_debug(1, "libertas_join_adhoc_network: CurBss.ssid_len =%u\n",
 202                adapter->curbssparams.ssid.ssidlength);
 203         lbs_pr_debug(1, "libertas_join_adhoc_network: ssid =%s\n", pbssdesc->ssid.ssid);
 204         lbs_pr_debug(1, "libertas_join_adhoc_network: ssid len =%u\n",
 205                pbssdesc->ssid.ssidlength);
 206
 207         /* check if the requested SSID is already joined */
 208         if (adapter->curbssparams.ssid.ssidlength
 209             && !libertas_SSID_cmp(&pbssdesc->ssid, &adapter->curbssparams.ssid)
 210             && (adapter->curbssparams.bssdescriptor.inframode ==
 211                 wlan802_11ibss)) {
 212
 213         lbs_pr_debug(1,
 214                        "ADHOC_J_CMD: New ad-hoc SSID is the same as current, "
 215                        "not attempting to re-join");
 216
 217                 return -1;
 218         }
 219
 220         /*Use shortpreamble only when both creator and card supports
 221            short preamble */
 222         if (!pbssdesc->cap.shortpreamble || !adapter->capinfo.shortpreamble) {
 223                 lbs_pr_debug(1, "AdhocJoin: Long preamble\n");
 224                 adapter->preamble = cmd_type_long_preamble;
 225         } else {
 226                 lbs_pr_debug(1, "AdhocJoin: Short preamble\n");
 227                 adapter->preamble = cmd_type_short_preamble;
 228         }
 229
 230         libertas_set_radio_control(priv);
 231
 232         lbs_pr_debug(1, "curbssparams.channel = %d\n",
 233                adapter->curbssparams.channel);
 234         lbs_pr_debug(1, "curbssparams.band = %c\n", adapter->curbssparams.band);
 235
 236         adapter->adhoccreate = 0;
 237
 238         ret = libertas_prepare_and_send_command(priv, cmd_802_11_ad_hoc_join,
 239                                     0, cmd_option_waitforrsp,
 240                                     OID_802_11_SSID, pbssdesc);
 241
 242         return ret;
 243 }
 244
 245 int libertas_stop_adhoc_network(wlan_private * priv)
 246 {
 247         return libertas_prepare_and_send_command(priv, cmd_802_11_ad_hoc_stop,
 248                                      0, cmd_option_waitforrsp, 0, NULL);
 249 }
 250
 251 /**
 252  *  @brief Send Deauthentication Request
 253  *
 254  *  @param priv      A pointer to wlan_private structure
 255  *  @return          0--success, -1--fail
 256  */
 257 int libertas_send_deauthentication(wlan_private * priv)
 258 {
 259         return libertas_prepare_and_send_command(priv, cmd_802_11_deauthenticate,
 260                                      0, cmd_option_waitforrsp, 0, NULL);
 261 }
 262
 263 /**
 264  *  @brief Set Idle Off
 265  *
 266  *  @param priv         A pointer to wlan_private structure
 267  *  @return             0 --success, otherwise fail
 268  */
 269 int libertas_idle_off(wlan_private * priv)
 270 {
 271         wlan_adapter *adapter = priv->adapter;
 272         int ret = 0;
 273         const u8 zeromac[] = { 0, 0, 0, 0, 0, 0 };
 274         int i;
 275
 276         ENTER();
 277
 278         if (adapter->connect_status == libertas_disconnected) {
 279                 if (adapter->inframode == wlan802_11infrastructure) {
 280                         if (memcmp(adapter->previousbssid, zeromac,
 281                                    sizeof(zeromac)) != 0) {
 282
 283                                 lbs_pr_debug(1, "Previous SSID = %s\n",
 284                                        adapter->previousssid.ssid);
 285                                 lbs_pr_debug(1, "Previous BSSID = "
 286                                        "%02x:%02x:%02x:%02x:%02x:%02x:\n",
 287                                        adapter->previousbssid[0],
 288                                        adapter->previousbssid[1],
 289                                        adapter->previousbssid[2],
 290                                        adapter->previousbssid[3],
 291                                        adapter->previousbssid[4],
 292                                        adapter->previousbssid[5]);
 293
 294                                 i = libertas_find_SSID_in_list(adapter,
 295                                                    &adapter->previousssid,
 296                                                    adapter->previousbssid,
 297                                                    adapter->inframode);
 298
 299                                 if (i < 0) {
 300                                         libertas_send_specific_BSSID_scan(priv,
 301                                                               adapter->
 302                                                               previousbssid,
 303                                                               1);
 304                                         i = libertas_find_SSID_in_list(adapter,
 305                                                            &adapter->
 306                                                            previousssid,
 307                                                            adapter->
 308                                                            previousbssid,
 309                                                            adapter->
 310                                                            inframode);
 311                                 }
 312
 313                                 if (i < 0) {
 314                                         /* If the BSSID could not be found, try just the SSID */
 315                                         i = libertas_find_SSID_in_list(adapter,
 316                                                            &adapter->
 317                                                            previousssid, NULL,
 318                                                            adapter->
 319                                                            inframode);
 320                                 }
 321
 322                                 if (i < 0) {
 323                                         libertas_send_specific_SSID_scan(priv,
 324                                                              &adapter->
 325                                                              previousssid,
 326                                                              1);
 327                                         i = libertas_find_SSID_in_list(adapter,
 328                                                            &adapter->
 329                                                            previousssid, NULL,
 330                                                            adapter->
 331                                                            inframode);
 332                                 }
 333
 334                                 if (i >= 0) {
 335                                         ret =
 336                                             wlan_associate(priv,
 337                                                            &adapter->
 338                                                            scantable[i]);
 339                                 }
 340                         }
 341                 } else if (adapter->inframode == wlan802_11ibss) {
 342                         ret = libertas_prepare_and_send_command(priv,
 343                                                     cmd_802_11_ad_hoc_start,
 344                                                     0,
 345                                                     cmd_option_waitforrsp,
 346                                                     0, &adapter->previousssid);
 347                 }
 348         }
 349         /* else it is connected */
 350
 351         lbs_pr_debug(1, "\nwlanidle is off");
 352         LEAVE();
 353         return ret;
 354 }
 355
 356 /**
 357  *  @brief Set Idle On
 358  *
 359  *  @param priv         A pointer to wlan_private structure
 360  *  @return             0 --success, otherwise fail
 361  */
 362 int libertas_idle_on(wlan_private * priv)
 363 {
 364         wlan_adapter *adapter = priv->adapter;
 365         int ret = 0;
 366
 367         if (adapter->connect_status == libertas_connected) {
 368                 if (adapter->inframode == wlan802_11infrastructure) {
 369                         lbs_pr_debug(1, "Previous SSID = %s\n",
 370                                adapter->previousssid.ssid);
 371                         memmove(&adapter->previousssid,
 372                                 &adapter->curbssparams.ssid,
 373                                 sizeof(struct WLAN_802_11_SSID));
 374                         libertas_send_deauth(priv);
 375
 376                 } else if (adapter->inframode == wlan802_11ibss) {
 377                         ret = libertas_stop_adhoc_network(priv);
 378                 }
 379
 380         }
 381
 382         lbs_pr_debug(1, "\nwlanidle is on");
 383
 384         return ret;
 385 }
 386
 387 /**
 388  *  @brief This function prepares command of authenticate.
 389  *
 390  *  @param priv      A pointer to wlan_private structure
 391  *  @param cmd       A pointer to cmd_ds_command structure
 392  *  @param pdata_buf Void cast of pointer to a BSSID to authenticate with
 393  *
 394  *  @return         0 or -1
 395  */
 396 int libertas_cmd_80211_authenticate(wlan_private * priv,
 397                                  struct cmd_ds_command *cmd,
 398                                  void *pdata_buf)
 399 {
 400         wlan_adapter *adapter = priv->adapter;
 401         struct cmd_ds_802_11_authenticate *pauthenticate =
 402             &cmd->params.auth;
 403         u8 *bssid = pdata_buf;
 404
 405         cmd->command = cpu_to_le16(cmd_802_11_authenticate);
 406         cmd->size =
 407             cpu_to_le16(sizeof(struct cmd_ds_802_11_authenticate)
 408                              + S_DS_GEN);
 409
 410         pauthenticate->authtype = adapter->secinfo.authmode;
 411         memcpy(pauthenticate->macaddr, bssid, ETH_ALEN);
 412
 413         lbs_pr_debug(1, "AUTH_CMD: Bssid is : %x:%x:%x:%x:%x:%x\n",
 414                bssid[0], bssid[1], bssid[2], bssid[3], bssid[4], bssid[5]);
 415
 416         return 0;
 417 }
 418
 419 int libertas_cmd_80211_deauthenticate(wlan_private * priv,
 420                                    struct cmd_ds_command *cmd)
 421 {
 422         wlan_adapter *adapter = priv->adapter;
 423         struct cmd_ds_802_11_deauthenticate *dauth = &cmd->params.deauth;
 424
 425         ENTER();
 426
 427         cmd->command = cpu_to_le16(cmd_802_11_deauthenticate);
 428         cmd->size =
 429             cpu_to_le16(sizeof(struct cmd_ds_802_11_deauthenticate) +
 430                              S_DS_GEN);
 431
 432         /* set AP MAC address */
 433         memmove(dauth->macaddr, adapter->curbssparams.bssid,
 434                 ETH_ALEN);
 435
 436         /* Reason code 3 = Station is leaving */
 437 #define REASON_CODE_STA_LEAVING 3
 438         dauth->reasoncode = cpu_to_le16(REASON_CODE_STA_LEAVING);
 439
 440         LEAVE();
 441         return 0;
 442 }
 443
 444 int libertas_cmd_80211_associate(wlan_private * priv,
 445                               struct cmd_ds_command *cmd, void *pdata_buf)
 446 {
 447         wlan_adapter *adapter = priv->adapter;
 448         struct cmd_ds_802_11_associate *passo = &cmd->params.associate;
 449         int ret = 0;
 450         struct bss_descriptor *pbssdesc;
 451         u8 *card_rates;
 452         u8 *pos;
 453         int card_rates_size;
 454         u16 tmpcap;
 455         struct mrvlietypes_ssidparamset *ssid;
 456         struct mrvlietypes_phyparamset *phy;
 457         struct mrvlietypes_ssparamset *ss;
 458         struct mrvlietypes_ratesparamset *rates;
 459         struct mrvlietypes_rsnparamset *rsn;
 460
 461         ENTER();
 462
 463         pbssdesc = pdata_buf;
 464         pos = (u8 *) passo;
 465
 466         if (!adapter) {
 467                 ret = -1;
 468                 goto done;
 469         }
 470
 471         cmd->command = cpu_to_le16(cmd_802_11_associate);
 472
 473         /* Save so we know which BSS Desc to use in the response handler */
 474         adapter->pattemptedbssdesc = pbssdesc;
 475
 476         memcpy(passo->peerstaaddr,
 477                pbssdesc->macaddress, sizeof(passo->peerstaaddr));
 478         pos += sizeof(passo->peerstaaddr);
 479
 480         /* set the listen interval */
 481         passo->listeninterval = adapter->listeninterval;
 482
 483         pos += sizeof(passo->capinfo);
 484         pos += sizeof(passo->listeninterval);
 485         pos += sizeof(passo->bcnperiod);
 486         pos += sizeof(passo->dtimperiod);
 487
 488         ssid = (struct mrvlietypes_ssidparamset *) pos;
 489         ssid->header.type = cpu_to_le16(TLV_TYPE_SSID);
 490         ssid->header.len = pbssdesc->ssid.ssidlength;
 491         memcpy(ssid->ssid, pbssdesc->ssid.ssid, ssid->header.len);
 492         pos += sizeof(ssid->header) + ssid->header.len;
 493         ssid->header.len = cpu_to_le16(ssid->header.len);
 494
 495         phy = (struct mrvlietypes_phyparamset *) pos;
 496         phy->header.type = cpu_to_le16(TLV_TYPE_PHY_DS);
 497         phy->header.len = sizeof(phy->fh_ds.dsparamset);
 498         memcpy(&phy->fh_ds.dsparamset,
 499                &pbssdesc->phyparamset.dsparamset.currentchan,
 500                sizeof(phy->fh_ds.dsparamset));
 501         pos += sizeof(phy->header) + phy->header.len;
 502         phy->header.len = cpu_to_le16(phy->header.len);
 503
 504         ss = (struct mrvlietypes_ssparamset *) pos;
 505         ss->header.type = cpu_to_le16(TLV_TYPE_CF);
 506         ss->header.len = sizeof(ss->cf_ibss.cfparamset);
 507         pos += sizeof(ss->header) + ss->header.len;
 508         ss->header.len = cpu_to_le16(ss->header.len);
 509
 510         rates = (struct mrvlietypes_ratesparamset *) pos;
 511         rates->header.type = cpu_to_le16(TLV_TYPE_RATES);
 512
 513         memcpy(&rates->rates, &pbssdesc->libertas_supported_rates, WLAN_SUPPORTED_RATES);
 514
 515         card_rates = libertas_supported_rates;
 516         card_rates_size = sizeof(libertas_supported_rates);
 517
 518         if (get_common_rates(adapter, rates->rates, WLAN_SUPPORTED_RATES,
 519                              card_rates, card_rates_size)) {
 520                 ret = -1;
 521                 goto done;
 522         }
 523
 524         rates->header.len = min_t(size_t, strlen(rates->rates), WLAN_SUPPORTED_RATES);
 525         adapter->curbssparams.numofrates = rates->header.len;
 526
 527         pos += sizeof(rates->header) + rates->header.len;
 528         rates->header.len = cpu_to_le16(rates->header.len);
 529
 530         if (adapter->secinfo.WPAenabled || adapter->secinfo.WPA2enabled) {
 531                 rsn = (struct mrvlietypes_rsnparamset *) pos;
 532                 rsn->header.type = (u16) adapter->wpa_ie[0];    /* WPA_IE or WPA2_IE */
 533                 rsn->header.type = cpu_to_le16(rsn->header.type);
 534                 rsn->header.len = (u16) adapter->wpa_ie[1];
 535                 memcpy(rsn->rsnie, &adapter->wpa_ie[2], rsn->header.len);
 536                 lbs_dbg_hex("ASSOC_CMD: RSN IE", (u8 *) rsn,
 537                         sizeof(rsn->header) + rsn->header.len);
 538                 pos += sizeof(rsn->header) + rsn->header.len;
 539                 rsn->header.len = cpu_to_le16(rsn->header.len);
 540         }
 541
 542         /* update curbssparams */
 543         adapter->curbssparams.channel =
 544             (pbssdesc->phyparamset.dsparamset.currentchan);
 545
 546         /* Copy the infra. association rates into Current BSS state structure */
 547         memcpy(&adapter->curbssparams.datarates, &rates->rates,
 548                min_t(size_t, sizeof(adapter->curbssparams.datarates), rates->header.len));
 549
 550         lbs_pr_debug(1, "ASSOC_CMD: rates->header.len = %d\n", rates->header.len);
 551
 552         /* set IBSS field */
 553         if (pbssdesc->inframode == wlan802_11infrastructure) {
 554 #define CAPINFO_ESS_MODE 1
 555                 passo->capinfo.ess = CAPINFO_ESS_MODE;
 556         }
 557
 558         if (libertas_parse_dnld_countryinfo_11d(priv)) {
 559                 ret = -1;
 560                 goto done;
 561         }
 562
 563         cmd->size = cpu_to_le16((u16) (pos - (u8 *) passo) + S_DS_GEN);
 564
 565         /* set the capability info at last */
 566         memcpy(&tmpcap, &pbssdesc->cap, sizeof(passo->capinfo));
 567         tmpcap &= CAPINFO_MASK;
 568         lbs_pr_debug(1, "ASSOC_CMD: tmpcap=%4X CAPINFO_MASK=%4X\n",
 569                tmpcap, CAPINFO_MASK);
 570         tmpcap = cpu_to_le16(tmpcap);
 571         memcpy(&passo->capinfo, &tmpcap, sizeof(passo->capinfo));
 572
 573       done:
 574         LEAVE();
 575         return ret;
 576 }
 577
 578 int libertas_cmd_80211_ad_hoc_start(wlan_private * priv,
 579                                  struct cmd_ds_command *cmd, void *pssid)
 580 {
 581         wlan_adapter *adapter = priv->adapter;
 582         struct cmd_ds_802_11_ad_hoc_start *adhs = &cmd->params.ads;
 583         int ret = 0;
 584         int cmdappendsize = 0;
 585         int i;
 586         u16 tmpcap;
 587         struct bss_descriptor *pbssdesc;
 588         struct WLAN_802_11_SSID *ssid = pssid;
 589
 590         ENTER();
 591
 592         if (!adapter) {
 593                 ret = -1;
 594                 goto done;
 595         }
 596
 597         cmd->command = cpu_to_le16(cmd_802_11_ad_hoc_start);
 598
 599         pbssdesc = &adapter->curbssparams.bssdescriptor;
 600         adapter->pattemptedbssdesc = pbssdesc;
 601
 602         /*
 603          * Fill in the parameters for 2 data structures:
 604          *   1. cmd_ds_802_11_ad_hoc_start command
 605          *   2. adapter->scantable[i]
 606          *
 607          * Driver will fill up SSID, bsstype,IBSS param, Physical Param,
 608          *   probe delay, and cap info.
 609          *
 610          * Firmware will fill up beacon period, DTIM, Basic rates
 611          *   and operational rates.
 612          */
 613
 614         memset(adhs->SSID, 0, IW_ESSID_MAX_SIZE);
 615
 616         memcpy(adhs->SSID, ssid->ssid, ssid->ssidlength);
 617
 618         lbs_pr_debug(1, "ADHOC_S_CMD: SSID = %s\n", adhs->SSID);
 619
 620         memset(pbssdesc->ssid.ssid, 0, IW_ESSID_MAX_SIZE);
 621         memcpy(pbssdesc->ssid.ssid, ssid->ssid, ssid->ssidlength);
 622
 623         pbssdesc->ssid.ssidlength = ssid->ssidlength;
 624
 625         /* set the BSS type */
 626         adhs->bsstype = cmd_bss_type_ibss;
 627         pbssdesc->inframode = wlan802_11ibss;
 628         adhs->beaconperiod = adapter->beaconperiod;
 629
 630         /* set Physical param set */
 631 #define DS_PARA_IE_ID   3
 632 #define DS_PARA_IE_LEN  1
 633
 634         adhs->phyparamset.dsparamset.elementid = DS_PARA_IE_ID;
 635         adhs->phyparamset.dsparamset.len = DS_PARA_IE_LEN;
 636
 637         WARN_ON(!adapter->adhocchannel);
 638
 639         lbs_pr_debug(1, "ADHOC_S_CMD: Creating ADHOC on channel %d\n",
 640                adapter->adhocchannel);
 641
 642         adapter->curbssparams.channel = adapter->adhocchannel;
 643
 644         pbssdesc->channel = adapter->adhocchannel;
 645         adhs->phyparamset.dsparamset.currentchan = adapter->adhocchannel;
 646
 647         memcpy(&pbssdesc->phyparamset,
 648                &adhs->phyparamset, sizeof(union ieeetypes_phyparamset));
 649
 650         /* set IBSS param set */
 651 #define IBSS_PARA_IE_ID   6
 652 #define IBSS_PARA_IE_LEN  2
 653
 654         adhs->ssparamset.ibssparamset.elementid = IBSS_PARA_IE_ID;
 655         adhs->ssparamset.ibssparamset.len = IBSS_PARA_IE_LEN;
 656         adhs->ssparamset.ibssparamset.atimwindow = adapter->atimwindow;
 657         memcpy(&pbssdesc->ssparamset,
 658                &adhs->ssparamset, sizeof(union IEEEtypes_ssparamset));
 659
 660         /* set capability info */
 661         adhs->cap.ess = 0;
 662         adhs->cap.ibss = 1;
 663         pbssdesc->cap.ibss = 1;
 664
 665         /* probedelay */
 666         adhs->probedelay = cpu_to_le16(cmd_scan_probe_delay_time);
 667
 668         /* set up privacy in adapter->scantable[i] */
 669         if (adapter->secinfo.WEPstatus == wlan802_11WEPenabled) {
 670
 671 #define AD_HOC_CAP_PRIVACY_ON 1
 672                 lbs_pr_debug(1, "ADHOC_S_CMD: WEPstatus set, privacy to WEP\n");
 673                 pbssdesc->privacy = wlan802_11privfilter8021xWEP;
 674                 adhs->cap.privacy = AD_HOC_CAP_PRIVACY_ON;
 675         } else {
 676                 lbs_pr_debug(1, "ADHOC_S_CMD: WEPstatus NOT set, Setting "
 677                        "privacy to ACCEPT ALL\n");
 678                 pbssdesc->privacy = wlan802_11privfilteracceptall;
 679         }
 680
 681         memset(adhs->datarate, 0, sizeof(adhs->datarate));
 682
 683         if (adapter->adhoc_grate_enabled) {
 684                 memcpy(adhs->datarate, libertas_adhoc_rates_g,
 685                        min(sizeof(adhs->datarate), sizeof(libertas_adhoc_rates_g)));
 686         } else {
 687                 memcpy(adhs->datarate, libertas_adhoc_rates_b,
 688                        min(sizeof(adhs->datarate), sizeof(libertas_adhoc_rates_b)));
 689         }
 690
 691         /* Find the last non zero */
 692         for (i = 0; i < sizeof(adhs->datarate) && adhs->datarate[i]; i++) ;
 693
 694         adapter->curbssparams.numofrates = i;
 695
 696         /* Copy the ad-hoc creating rates into Current BSS state structure */
 697         memcpy(&adapter->curbssparams.datarates,
 698                &adhs->datarate, adapter->curbssparams.numofrates);
 699
 700         lbs_pr_debug(1, "ADHOC_S_CMD: rates=%02x %02x %02x %02x \n",
 701                adhs->datarate[0], adhs->datarate[1],
 702                adhs->datarate[2], adhs->datarate[3]);
 703
 704         lbs_pr_debug(1, "ADHOC_S_CMD: AD HOC Start command is ready\n");
 705
 706         if (libertas_create_dnld_countryinfo_11d(priv)) {
 707                 lbs_pr_debug(1, "ADHOC_S_CMD: dnld_countryinfo_11d failed\n");
 708                 ret = -1;
 709                 goto done;
 710         }
 711
 712         cmd->size =
 713             cpu_to_le16(sizeof(struct cmd_ds_802_11_ad_hoc_start)
 714                              + S_DS_GEN + cmdappendsize);
 715
 716         memcpy(&tmpcap, &adhs->cap, sizeof(u16));
 717         tmpcap = cpu_to_le16(tmpcap);
 718         memcpy(&adhs->cap, &tmpcap, sizeof(u16));
 719
 720         ret = 0;
 721 done:
 722         LEAVE();
 723         return ret;
 724 }
 725
 726 int libertas_cmd_80211_ad_hoc_stop(wlan_private * priv,
 727                                 struct cmd_ds_command *cmd)
 728 {
 729         cmd->command = cpu_to_le16(cmd_802_11_ad_hoc_stop);
 730         cmd->size = cpu_to_le16(S_DS_GEN);
 731
 732         return 0;
 733 }
 734
 735 int libertas_cmd_80211_ad_hoc_join(wlan_private * priv,
 736                                 struct cmd_ds_command *cmd, void *pdata_buf)
 737 {
 738         wlan_adapter *adapter = priv->adapter;
 739         struct cmd_ds_802_11_ad_hoc_join *padhocjoin = &cmd->params.adj;
 740         struct bss_descriptor *pbssdesc = pdata_buf;
 741         int cmdappendsize = 0;
 742         int ret = 0;
 743         u8 *card_rates;
 744         int card_rates_size;
 745         u16 tmpcap;
 746         int i;
 747
 748         ENTER();
 749
 750         adapter->pattemptedbssdesc = pbssdesc;
 751
 752         cmd->command = cpu_to_le16(cmd_802_11_ad_hoc_join);
 753
 754         padhocjoin->bssdescriptor.bsstype = cmd_bss_type_ibss;
 755
 756         padhocjoin->bssdescriptor.beaconperiod = pbssdesc->beaconperiod;
 757
 758         memcpy(&padhocjoin->bssdescriptor.BSSID,
 759                &pbssdesc->macaddress, ETH_ALEN);
 760
 761         memcpy(&padhocjoin->bssdescriptor.SSID,
 762                &pbssdesc->ssid.ssid, pbssdesc->ssid.ssidlength);
 763
 764         memcpy(&padhocjoin->bssdescriptor.phyparamset,
 765                &pbssdesc->phyparamset, sizeof(union ieeetypes_phyparamset));
 766
 767         memcpy(&padhocjoin->bssdescriptor.ssparamset,
 768                &pbssdesc->ssparamset, sizeof(union IEEEtypes_ssparamset));
 769
 770         memcpy(&tmpcap, &pbssdesc->cap, sizeof(struct ieeetypes_capinfo));
 771         tmpcap &= CAPINFO_MASK;
 772
 773         lbs_pr_debug(1, "ADHOC_J_CMD: tmpcap=%4X CAPINFO_MASK=%4X\n",
 774                tmpcap, CAPINFO_MASK);
 775         memcpy(&padhocjoin->bssdescriptor.cap, &tmpcap,
 776                sizeof(struct ieeetypes_capinfo));
 777
 778         /* information on BSSID descriptor passed to FW */
 779     lbs_pr_debug(1,
 780                "ADHOC_J_CMD: BSSID = %2x-%2x-%2x-%2x-%2x-%2x, SSID = %s\n",
 781                padhocjoin->bssdescriptor.BSSID[0],
 782                padhocjoin->bssdescriptor.BSSID[1],
 783                padhocjoin->bssdescriptor.BSSID[2],
 784                padhocjoin->bssdescriptor.BSSID[3],
 785                padhocjoin->bssdescriptor.BSSID[4],
 786                padhocjoin->bssdescriptor.BSSID[5],
 787                padhocjoin->bssdescriptor.SSID);
 788
 789         lbs_pr_debug(1, "ADHOC_J_CMD: Data Rate = %x\n",
 790                (u32) padhocjoin->bssdescriptor.datarates);
 791
 792         /* failtimeout */
 793         padhocjoin->failtimeout = cpu_to_le16(MRVDRV_ASSOCIATION_TIME_OUT);
 794
 795         /* probedelay */
 796         padhocjoin->probedelay =
 797             cpu_to_le16(cmd_scan_probe_delay_time);
 798
 799         /* Copy Data rates from the rates recorded in scan response */
 800         memset(padhocjoin->bssdescriptor.datarates, 0,
 801                sizeof(padhocjoin->bssdescriptor.datarates));
 802         memcpy(padhocjoin->bssdescriptor.datarates, pbssdesc->datarates,
 803                min(sizeof(padhocjoin->bssdescriptor.datarates),
 804                    sizeof(pbssdesc->datarates)));
 805
 806         card_rates = libertas_supported_rates;
 807         card_rates_size = sizeof(libertas_supported_rates);
 808
 809         adapter->curbssparams.channel = pbssdesc->channel;
 810
 811         if (get_common_rates(adapter, padhocjoin->bssdescriptor.datarates,
 812                              sizeof(padhocjoin->bssdescriptor.datarates),
 813                              card_rates, card_rates_size)) {
 814                 lbs_pr_debug(1, "ADHOC_J_CMD: get_common_rates returns error.\n");
 815                 ret = -1;
 816                 goto done;
 817         }
 818
 819         /* Find the last non zero */
 820         for (i = 0; i < sizeof(padhocjoin->bssdescriptor.datarates)
 821              && padhocjoin->bssdescriptor.datarates[i]; i++) ;
 822
 823         adapter->curbssparams.numofrates = i;
 824
 825         /*
 826          * Copy the adhoc joining rates to Current BSS State structure
 827          */
 828         memcpy(adapter->curbssparams.datarates,
 829                padhocjoin->bssdescriptor.datarates,
 830                adapter->curbssparams.numofrates);
 831
 832         padhocjoin->bssdescriptor.ssparamset.ibssparamset.atimwindow =
 833             cpu_to_le16(pbssdesc->atimwindow);
 834
 835         if (adapter->secinfo.WEPstatus == wlan802_11WEPenabled) {
 836                 padhocjoin->bssdescriptor.cap.privacy = AD_HOC_CAP_PRIVACY_ON;
 837         }
 838
 839         if (adapter->psmode == wlan802_11powermodemax_psp) {
 840                 /* wake up first */
 841                 enum WLAN_802_11_POWER_MODE Localpsmode;
 842
 843                 Localpsmode = wlan802_11powermodecam;
 844                 ret = libertas_prepare_and_send_command(priv,
 845                                             cmd_802_11_ps_mode,
 846                                             cmd_act_set,
 847                                             0, 0, &Localpsmode);
 848
 849                 if (ret) {
 850                         ret = -1;
 851                         goto done;
 852                 }
 853         }
 854
 855         if (libertas_parse_dnld_countryinfo_11d(priv)) {
 856                 ret = -1;
 857                 goto done;
 858         }
 859
 860         cmd->size =
 861             cpu_to_le16(sizeof(struct cmd_ds_802_11_ad_hoc_join)
 862                              + S_DS_GEN + cmdappendsize);
 863
 864         memcpy(&tmpcap, &padhocjoin->bssdescriptor.cap,
 865                sizeof(struct ieeetypes_capinfo));
 866         tmpcap = cpu_to_le16(tmpcap);
 867
 868         memcpy(&padhocjoin->bssdescriptor.cap,
 869                &tmpcap, sizeof(struct ieeetypes_capinfo));
 870
 871       done:
 872         LEAVE();
 873         return ret;
 874 }
 875
 876 int libertas_ret_80211_associate(wlan_private * priv,
 877                               struct cmd_ds_command *resp)
 878 {
 879         wlan_adapter *adapter = priv->adapter;
 880         int ret = 0;
 881         union iwreq_data wrqu;
 882         struct ieeetypes_assocrsp *passocrsp;
 883         struct bss_descriptor *pbssdesc;
 884
 885         ENTER();
 886
 887         passocrsp = (struct ieeetypes_assocrsp *) & resp->params;
 888
 889         if (passocrsp->statuscode) {
 890
 891                 libertas_mac_event_disconnected(priv);
 892
 893         lbs_pr_debug(1,
 894                        "ASSOC_RESP: Association failed, status code = %d\n",
 895                        passocrsp->statuscode);
 896
 897                 ret = -1;
 898                 goto done;
 899         }
 900
 901         lbs_dbg_hex("ASSOC_RESP:", (void *)&resp->params,
 902                 le16_to_cpu(resp->size) - S_DS_GEN);
 903
 904         /* Send a Media Connected event, according to the Spec */
 905         adapter->connect_status = libertas_connected;
 906
 907         /* Set the attempted BSSID Index to current */
 908         pbssdesc = adapter->pattemptedbssdesc;
 909
 910         lbs_pr_debug(1, "ASSOC_RESP: %s\n", pbssdesc->ssid.ssid);
 911
 912         /* Set the new SSID to current SSID */
 913         memcpy(&adapter->curbssparams.ssid,
 914                &pbssdesc->ssid, sizeof(struct WLAN_802_11_SSID));
 915
 916         /* Set the new BSSID (AP's MAC address) to current BSSID */
 917         memcpy(adapter->curbssparams.bssid,
 918                pbssdesc->macaddress, ETH_ALEN);
 919
 920         /* Make a copy of current BSSID descriptor */
 921         memcpy(&adapter->curbssparams.bssdescriptor,
 922                pbssdesc, sizeof(struct bss_descriptor));
 923
 924         lbs_pr_debug(1, "ASSOC_RESP: currentpacketfilter is %x\n",
 925                adapter->currentpacketfilter);
 926
 927         adapter->SNR[TYPE_RXPD][TYPE_AVG] = 0;
 928         adapter->NF[TYPE_RXPD][TYPE_AVG] = 0;
 929
 930         memset(adapter->rawSNR, 0x00, sizeof(adapter->rawSNR));
 931         memset(adapter->rawNF, 0x00, sizeof(adapter->rawNF));
 932         adapter->nextSNRNF = 0;
 933         adapter->numSNRNF = 0;
 934
 935         netif_carrier_on(priv->wlan_dev.netdev);
 936         netif_wake_queue(priv->wlan_dev.netdev);
 937
 938         lbs_pr_debug(1, "ASSOC_RESP: Associated \n");
 939
 940         memcpy(wrqu.ap_addr.sa_data, adapter->curbssparams.bssid, ETH_ALEN);
 941         wrqu.ap_addr.sa_family = ARPHRD_ETHER;
 942         wireless_send_event(priv->wlan_dev.netdev, SIOCGIWAP, &wrqu, NULL);
 943
 944       done:
 945         LEAVE();
 946         return ret;
 947 }
 948
 949 int libertas_ret_80211_disassociate(wlan_private * priv,
 950                                  struct cmd_ds_command *resp)
 951 {
 952         ENTER();
 953
 954         libertas_mac_event_disconnected(priv);
 955
 956         LEAVE();
 957         return 0;
 958 }
 959
 960 int libertas_ret_80211_ad_hoc_start(wlan_private * priv,
 961                                  struct cmd_ds_command *resp)
 962 {
 963         wlan_adapter *adapter = priv->adapter;
 964         int ret = 0;
 965         u16 command = le16_to_cpu(resp->command);
 966         u16 result = le16_to_cpu(resp->result);
 967         struct cmd_ds_802_11_ad_hoc_result *padhocresult;
 968         union iwreq_data wrqu;
 969         struct bss_descriptor *pbssdesc;
 970
 971         ENTER();
 972
 973         padhocresult = &resp->params.result;
 974
 975         lbs_pr_debug(1, "ADHOC_S_RESP: size = %d\n", le16_to_cpu(resp->size));
 976         lbs_pr_debug(1, "ADHOC_S_RESP: command = %x\n", command);
 977         lbs_pr_debug(1, "ADHOC_S_RESP: result = %x\n", result);
 978
 979         pbssdesc = adapter->pattemptedbssdesc;
 980
 981         /*
 982          * Join result code 0 --> SUCCESS
 983          */
 984         if (result) {
 985                 lbs_pr_debug(1, "ADHOC_RESP failed\n");
 986                 if (adapter->connect_status == libertas_connected) {
 987                         libertas_mac_event_disconnected(priv);
 988                 }
 989
 990                 memset(&adapter->curbssparams.bssdescriptor,
 991                        0x00, sizeof(adapter->curbssparams.bssdescriptor));
 992
 993                 LEAVE();
 994                 return -1;
 995         }
 996
 997         /*
 998          * Now the join cmd should be successful
 999          * If BSSID has changed use SSID to compare instead of BSSID
1000          */
1001         lbs_pr_debug(1, "ADHOC_J_RESP  %s\n", pbssdesc->ssid.ssid);
1002
1003         /* Send a Media Connected event, according to the Spec */
1004         adapter->connect_status = libertas_connected;
1005
1006         if (command == cmd_ret_802_11_ad_hoc_start) {
1007                 /* Update the created network descriptor with the new BSSID */
1008                 memcpy(pbssdesc->macaddress,
1009                        padhocresult->BSSID, ETH_ALEN);
1010         } else {
1011
1012                 /* Make a copy of current BSSID descriptor, only needed for join since
1013                  *   the current descriptor is already being used for adhoc start
1014                  */
1015                 memmove(&adapter->curbssparams.bssdescriptor,
1016                         pbssdesc, sizeof(struct bss_descriptor));
1017         }
1018
1019         /* Set the BSSID from the joined/started descriptor */
1020         memcpy(&adapter->curbssparams.bssid,
1021                pbssdesc->macaddress, ETH_ALEN);
1022
1023         /* Set the new SSID to current SSID */
1024         memcpy(&adapter->curbssparams.ssid,
1025                &pbssdesc->ssid, sizeof(struct WLAN_802_11_SSID));
1026
1027         netif_carrier_on(priv->wlan_dev.netdev);
1028         netif_wake_queue(priv->wlan_dev.netdev);
1029
1030         memset(&wrqu, 0, sizeof(wrqu));
1031         memcpy(wrqu.ap_addr.sa_data, adapter->curbssparams.bssid, ETH_ALEN);
1032         wrqu.ap_addr.sa_family = ARPHRD_ETHER;
1033         wireless_send_event(priv->wlan_dev.netdev, SIOCGIWAP, &wrqu, NULL);
1034
1035         lbs_pr_debug(1, "ADHOC_RESP: - Joined/Started Ad Hoc\n");
1036         lbs_pr_debug(1, "ADHOC_RESP: channel = %d\n", adapter->adhocchannel);
1037         lbs_pr_debug(1, "ADHOC_RESP: BSSID = %02x:%02x:%02x:%02x:%02x:%02x\n",
1038                padhocresult->BSSID[0], padhocresult->BSSID[1],
1039                padhocresult->BSSID[2], padhocresult->BSSID[3],
1040                padhocresult->BSSID[4], padhocresult->BSSID[5]);
1041
1042         LEAVE();
1043         return ret;
1044 }
1045
1046 int libertas_ret_80211_ad_hoc_stop(wlan_private * priv,
1047                                 struct cmd_ds_command *resp)
1048 {
1049         ENTER();
1050
1051         libertas_mac_event_disconnected(priv);
1052
1053         LEAVE();
1054         return 0;
1055 }