drivers/net/wireless/libertas/join.c

   1 /**
   2   *  Functions implementing wlan infrastructure and adhoc join routines,
   3   *  IOCTL handlers as well as command preperation and response routines
   4   *  for sending adhoc start, adhoc join, and association commands
   5   *  to the firmware.
   6   */
   7 #include <linux/netdevice.h>
   8 #include <linux/if_arp.h>
   9 #include <linux/wireless.h>
  10 #include <linux/etherdevice.h>
  11
  12 #include <net/iw_handler.h>
  13
  14 #include "host.h"
  15 #include "decl.h"
  16 #include "join.h"
  17 #include "dev.h"
  18 #include "assoc.h"
  19
  20 #define AD_HOC_CAP_PRIVACY_ON 1
  21
  22 /**
  23  *  @brief This function finds out the common rates between rate1 and rate2.
  24  *
  25  * It will fill common rates in rate1 as output if found.
  26  *
  27  * NOTE: Setting the MSB of the basic rates need to be taken
  28  *   care, either before or after calling this function
  29  *
  30  *  @param adapter     A pointer to wlan_adapter structure
  31  *  @param rate1       the buffer which keeps input and output
  32  *  @param rate1_size  the size of rate1 buffer
  33  *  @param rate2       the buffer which keeps rate2
  34  *  @param rate2_size  the size of rate2 buffer.
  35  *
  36  *  @return            0 or -1
  37  */
  38 static int get_common_rates(wlan_adapter * adapter, u8 * rate1,
  39                             int rate1_size, u8 * rate2, int rate2_size)
  40 {
  41         u8 *ptr = rate1;
  42         int ret = 0;
  43         u8 tmp[30];
  44         int i;
  45
  46         memset(&tmp, 0, sizeof(tmp));
  47         memcpy(&tmp, rate1, min_t(size_t, rate1_size, sizeof(tmp)));
  48         memset(rate1, 0, rate1_size);
  49
  50         /* Mask the top bit of the original values */
  51         for (i = 0; tmp[i] && i < sizeof(tmp); i++)
  52                 tmp[i] &= 0x7F;
  53
  54         for (i = 0; rate2[i] && i < rate2_size; i++) {
  55                 /* Check for Card Rate in tmp, excluding the top bit */
  56                 if (strchr(tmp, rate2[i] & 0x7F)) {
  57                         /* values match, so copy the Card Rate to rate1 */
  58                         *rate1++ = rate2[i];
  59                 }
  60         }
  61
  62         lbs_dbg_hex("rate1 (AP) rates:", tmp, sizeof(tmp));
  63         lbs_dbg_hex("rate2 (Card) rates:", rate2, rate2_size);
  64         lbs_dbg_hex("Common rates:", ptr, rate1_size);
  65         lbs_deb_join("Tx datarate is set to 0x%X\n", adapter->datarate);
  66
  67         if (!adapter->is_datarate_auto) {
  68                 while (*ptr) {
  69                         if ((*ptr & 0x7f) == adapter->datarate) {
  70                                 ret = 0;
  71                                 goto done;
  72                         }
  73                         ptr++;
  74                 }
  75                 lbs_pr_alert( "Previously set fixed data rate %#x isn't "
  76                        "compatible with the network.\n", adapter->datarate);
  77
  78                 ret = -1;
  79                 goto done;
  80         }
  81
  82         ret = 0;
  83 done:
  84         return ret;
  85 }
  86
  87 int libertas_send_deauth(wlan_private * priv)
  88 {
  89         wlan_adapter *adapter = priv->adapter;
  90         int ret = 0;
  91
  92         if (adapter->mode == IW_MODE_INFRA &&
  93             adapter->connect_status == libertas_connected)
  94                 ret = libertas_send_deauthentication(priv);
  95         else
  96                 ret = -ENOTSUPP;
  97
  98         return ret;
  99 }
 100
 101 /**
 102  *  @brief Associate to a specific BSS discovered in a scan
 103  *
 104  *  @param priv      A pointer to wlan_private structure
 105  *  @param pbssdesc  Pointer to the BSS descriptor to associate with.
 106  *
 107  *  @return          0-success, otherwise fail
 108  */
 109 int wlan_associate(wlan_private * priv, struct assoc_request * assoc_req)
 110 {
 111         wlan_adapter *adapter = priv->adapter;
 112         int ret;
 113
 114         lbs_deb_enter(LBS_DEB_JOIN);
 115
 116         ret = libertas_prepare_and_send_command(priv, cmd_802_11_authenticate,
 117                                     0, cmd_option_waitforrsp,
 118                                     0, assoc_req->bss.bssid);
 119
 120         if (ret)
 121                 goto done;
 122
 123         /* set preamble to firmware */
 124         if (adapter->capinfo.shortpreamble && assoc_req->bss.cap.shortpreamble)
 125                 adapter->preamble = cmd_type_short_preamble;
 126         else
 127                 adapter->preamble = cmd_type_long_preamble;
 128
 129         libertas_set_radio_control(priv);
 130
 131         ret = libertas_prepare_and_send_command(priv, cmd_802_11_associate,
 132                                     0, cmd_option_waitforrsp, 0, assoc_req);
 133
 134 done:
 135         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 136         return ret;
 137 }
 138
 139 /**
 140  *  @brief Start an Adhoc Network
 141  *
 142  *  @param priv         A pointer to wlan_private structure
 143  *  @param adhocssid    The ssid of the Adhoc Network
 144  *  @return             0--success, -1--fail
 145  */
 146 int libertas_start_adhoc_network(wlan_private * priv, struct assoc_request * assoc_req)
 147 {
 148         wlan_adapter *adapter = priv->adapter;
 149         int ret = 0;
 150
 151         adapter->adhoccreate = 1;
 152
 153         if (!adapter->capinfo.shortpreamble) {
 154                 lbs_deb_join("AdhocStart: Long preamble\n");
 155                 adapter->preamble = cmd_type_long_preamble;
 156         } else {
 157                 lbs_deb_join("AdhocStart: Short preamble\n");
 158                 adapter->preamble = cmd_type_short_preamble;
 159         }
 160
 161         libertas_set_radio_control(priv);
 162
 163         lbs_deb_join("AdhocStart: channel = %d\n", assoc_req->channel);
 164         lbs_deb_join("AdhocStart: band = %d\n", assoc_req->band);
 165
 166         ret = libertas_prepare_and_send_command(priv, cmd_802_11_ad_hoc_start,
 167                                     0, cmd_option_waitforrsp, 0, assoc_req);
 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 assoc_request * assoc_req)
 182 {
 183         wlan_adapter *adapter = priv->adapter;
 184         struct bss_descriptor * bss = &assoc_req->bss;
 185         int ret = 0;
 186
 187         lbs_deb_join("libertas_join_adhoc_network: CurBss.ssid =%s\n",
 188                adapter->curbssparams.ssid.ssid);
 189         lbs_deb_join("libertas_join_adhoc_network: CurBss.ssid_len =%u\n",
 190                adapter->curbssparams.ssid.ssidlength);
 191         lbs_deb_join("libertas_join_adhoc_network: ssid = '%s'\n",
 192                 bss->ssid.ssid);
 193         lbs_deb_join("libertas_join_adhoc_network: ssid len = %u\n",
 194                 bss->ssid.ssidlength);
 195
 196         /* check if the requested SSID is already joined */
 197         if (adapter->curbssparams.ssid.ssidlength
 198             && !libertas_SSID_cmp(&bss->ssid, &adapter->curbssparams.ssid)
 199             && (adapter->mode == IW_MODE_ADHOC)) {
 200                 lbs_deb_join(
 201                        "ADHOC_J_CMD: New ad-hoc SSID is the same as current, "
 202                        "not attempting to re-join");
 203                 return -1;
 204         }
 205
 206         /*Use shortpreamble only when both creator and card supports
 207            short preamble */
 208         if (!bss->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("AdhocJoin: channel = %d\n", assoc_req->channel);
 219         lbs_deb_join("AdhocJoin: band = %c\n", assoc_req->band);
 220
 221         adapter->adhoccreate = 0;
 222
 223         ret = libertas_prepare_and_send_command(priv, cmd_802_11_ad_hoc_join,
 224                                     0, cmd_option_waitforrsp,
 225                                     OID_802_11_SSID, assoc_req);
 226
 227         return ret;
 228 }
 229
 230 int libertas_stop_adhoc_network(wlan_private * priv)
 231 {
 232         return libertas_prepare_and_send_command(priv, cmd_802_11_ad_hoc_stop,
 233                                      0, cmd_option_waitforrsp, 0, NULL);
 234 }
 235
 236 /**
 237  *  @brief Send Deauthentication Request
 238  *
 239  *  @param priv      A pointer to wlan_private structure
 240  *  @return          0--success, -1--fail
 241  */
 242 int libertas_send_deauthentication(wlan_private * priv)
 243 {
 244         return libertas_prepare_and_send_command(priv, cmd_802_11_deauthenticate,
 245                                      0, cmd_option_waitforrsp, 0, NULL);
 246 }
 247
 248 /**
 249  *  @brief This function prepares command of authenticate.
 250  *
 251  *  @param priv      A pointer to wlan_private structure
 252  *  @param cmd       A pointer to cmd_ds_command structure
 253  *  @param pdata_buf Void cast of pointer to a BSSID to authenticate with
 254  *
 255  *  @return         0 or -1
 256  */
 257 int libertas_cmd_80211_authenticate(wlan_private * priv,
 258                                  struct cmd_ds_command *cmd,
 259                                  void *pdata_buf)
 260 {
 261         wlan_adapter *adapter = priv->adapter;
 262         struct cmd_ds_802_11_authenticate *pauthenticate = &cmd->params.auth;
 263         int ret = -1;
 264         u8 *bssid = pdata_buf;
 265
 266         cmd->command = cpu_to_le16(cmd_802_11_authenticate);
 267         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_authenticate)
 268                                 + S_DS_GEN);
 269
 270         /* translate auth mode to 802.11 defined wire value */
 271         switch (adapter->secinfo.auth_mode) {
 272         case IW_AUTH_ALG_OPEN_SYSTEM:
 273                 pauthenticate->authtype = 0x00;
 274                 break;
 275         case IW_AUTH_ALG_SHARED_KEY:
 276                 pauthenticate->authtype = 0x01;
 277                 break;
 278         case IW_AUTH_ALG_LEAP:
 279                 pauthenticate->authtype = 0x80;
 280                 break;
 281         default:
 282                 lbs_deb_join("AUTH_CMD: invalid auth alg 0x%X\n",
 283                              adapter->secinfo.auth_mode);
 284                 goto out;
 285         }
 286
 287         memcpy(pauthenticate->macaddr, bssid, ETH_ALEN);
 288
 289         lbs_deb_join("AUTH_CMD: Bssid is : " MAC_FMT "\n", MAC_ARG(bssid));
 290         ret = 0;
 291
 292 out:
 293         return ret;
 294 }
 295
 296 int libertas_cmd_80211_deauthenticate(wlan_private * priv,
 297                                    struct cmd_ds_command *cmd)
 298 {
 299         wlan_adapter *adapter = priv->adapter;
 300         struct cmd_ds_802_11_deauthenticate *dauth = &cmd->params.deauth;
 301
 302         lbs_deb_enter(LBS_DEB_JOIN);
 303
 304         cmd->command = cpu_to_le16(cmd_802_11_deauthenticate);
 305         cmd->size =
 306             cpu_to_le16(sizeof(struct cmd_ds_802_11_deauthenticate) +
 307                              S_DS_GEN);
 308
 309         /* set AP MAC address */
 310         memmove(dauth->macaddr, adapter->curbssparams.bssid,
 311                 ETH_ALEN);
 312
 313         /* Reason code 3 = Station is leaving */
 314 #define REASON_CODE_STA_LEAVING 3
 315         dauth->reasoncode = cpu_to_le16(REASON_CODE_STA_LEAVING);
 316
 317         lbs_deb_leave(LBS_DEB_JOIN);
 318         return 0;
 319 }
 320
 321 int libertas_cmd_80211_associate(wlan_private * priv,
 322                               struct cmd_ds_command *cmd, void *pdata_buf)
 323 {
 324         wlan_adapter *adapter = priv->adapter;
 325         struct cmd_ds_802_11_associate *passo = &cmd->params.associate;
 326         int ret = 0;
 327         struct assoc_request * assoc_req = pdata_buf;
 328         struct bss_descriptor * bss = &assoc_req->bss;
 329         u8 *card_rates;
 330         u8 *pos;
 331         int card_rates_size;
 332         u16 tmpcap;
 333         struct mrvlietypes_ssidparamset *ssid;
 334         struct mrvlietypes_phyparamset *phy;
 335         struct mrvlietypes_ssparamset *ss;
 336         struct mrvlietypes_ratesparamset *rates;
 337         struct mrvlietypes_rsnparamset *rsn;
 338
 339         lbs_deb_enter(LBS_DEB_JOIN);
 340
 341         pos = (u8 *) passo;
 342
 343         if (!adapter) {
 344                 ret = -1;
 345                 goto done;
 346         }
 347
 348         cmd->command = cpu_to_le16(cmd_802_11_associate);
 349
 350         memcpy(passo->peerstaaddr, bss->bssid, sizeof(passo->peerstaaddr));
 351         pos += sizeof(passo->peerstaaddr);
 352
 353         /* set the listen interval */
 354         passo->listeninterval = adapter->listeninterval;
 355
 356         pos += sizeof(passo->capinfo);
 357         pos += sizeof(passo->listeninterval);
 358         pos += sizeof(passo->bcnperiod);
 359         pos += sizeof(passo->dtimperiod);
 360
 361         ssid = (struct mrvlietypes_ssidparamset *) pos;
 362         ssid->header.type = cpu_to_le16(TLV_TYPE_SSID);
 363         ssid->header.len = bss->ssid.ssidlength;
 364         memcpy(ssid->ssid, bss->ssid.ssid, ssid->header.len);
 365         pos += sizeof(ssid->header) + ssid->header.len;
 366         ssid->header.len = cpu_to_le16(ssid->header.len);
 367
 368         phy = (struct mrvlietypes_phyparamset *) pos;
 369         phy->header.type = cpu_to_le16(TLV_TYPE_PHY_DS);
 370         phy->header.len = sizeof(phy->fh_ds.dsparamset);
 371         memcpy(&phy->fh_ds.dsparamset,
 372                &bss->phyparamset.dsparamset.currentchan,
 373                sizeof(phy->fh_ds.dsparamset));
 374         pos += sizeof(phy->header) + phy->header.len;
 375         phy->header.len = cpu_to_le16(phy->header.len);
 376
 377         ss = (struct mrvlietypes_ssparamset *) pos;
 378         ss->header.type = cpu_to_le16(TLV_TYPE_CF);
 379         ss->header.len = sizeof(ss->cf_ibss.cfparamset);
 380         pos += sizeof(ss->header) + ss->header.len;
 381         ss->header.len = cpu_to_le16(ss->header.len);
 382
 383         rates = (struct mrvlietypes_ratesparamset *) pos;
 384         rates->header.type = cpu_to_le16(TLV_TYPE_RATES);
 385
 386         memcpy(&rates->rates, &bss->libertas_supported_rates, WLAN_SUPPORTED_RATES);
 387
 388         card_rates = libertas_supported_rates;
 389         card_rates_size = sizeof(libertas_supported_rates);
 390
 391         if (get_common_rates(adapter, rates->rates, WLAN_SUPPORTED_RATES,
 392                              card_rates, card_rates_size)) {
 393                 ret = -1;
 394                 goto done;
 395         }
 396
 397         rates->header.len = min_t(size_t, strlen(rates->rates), WLAN_SUPPORTED_RATES);
 398         adapter->curbssparams.numofrates = rates->header.len;
 399
 400         pos += sizeof(rates->header) + rates->header.len;
 401         rates->header.len = cpu_to_le16(rates->header.len);
 402
 403         if (assoc_req->secinfo.WPAenabled || assoc_req->secinfo.WPA2enabled) {
 404                 rsn = (struct mrvlietypes_rsnparamset *) pos;
 405                 rsn->header.type = (u16) assoc_req->wpa_ie[0];  /* WPA_IE or WPA2_IE */
 406                 rsn->header.type = cpu_to_le16(rsn->header.type);
 407                 rsn->header.len = (u16) assoc_req->wpa_ie[1];
 408                 memcpy(rsn->rsnie, &assoc_req->wpa_ie[2], rsn->header.len);
 409                 lbs_dbg_hex("ASSOC_CMD: RSN IE", (u8 *) rsn,
 410                         sizeof(rsn->header) + rsn->header.len);
 411                 pos += sizeof(rsn->header) + rsn->header.len;
 412                 rsn->header.len = cpu_to_le16(rsn->header.len);
 413         }
 414
 415         /* update curbssparams */
 416         adapter->curbssparams.channel =
 417             (bss->phyparamset.dsparamset.currentchan);
 418
 419         /* Copy the infra. association rates into Current BSS state structure */
 420         memcpy(&adapter->curbssparams.datarates, &rates->rates,
 421                min_t(size_t, sizeof(adapter->curbssparams.datarates), rates->header.len));
 422
 423         lbs_deb_join("ASSOC_CMD: rates->header.len = %d\n", rates->header.len);
 424
 425         /* set IBSS field */
 426         if (bss->mode == IW_MODE_INFRA) {
 427 #define CAPINFO_ESS_MODE 1
 428                 passo->capinfo.ess = CAPINFO_ESS_MODE;
 429         }
 430
 431         if (libertas_parse_dnld_countryinfo_11d(priv, bss)) {
 432                 ret = -1;
 433                 goto done;
 434         }
 435
 436         cmd->size = cpu_to_le16((u16) (pos - (u8 *) passo) + S_DS_GEN);
 437
 438         /* set the capability info at last */
 439         memcpy(&tmpcap, &bss->cap, sizeof(passo->capinfo));
 440         tmpcap &= CAPINFO_MASK;
 441         lbs_deb_join("ASSOC_CMD: tmpcap=%4X CAPINFO_MASK=%4X\n",
 442                tmpcap, CAPINFO_MASK);
 443         tmpcap = cpu_to_le16(tmpcap);
 444         memcpy(&passo->capinfo, &tmpcap, sizeof(passo->capinfo));
 445
 446 done:
 447         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 448         return ret;
 449 }
 450
 451 int libertas_cmd_80211_ad_hoc_start(wlan_private * priv,
 452                                  struct cmd_ds_command *cmd, void *pdata_buf)
 453 {
 454         wlan_adapter *adapter = priv->adapter;
 455         struct cmd_ds_802_11_ad_hoc_start *adhs = &cmd->params.ads;
 456         int ret = 0;
 457         int cmdappendsize = 0;
 458         int i;
 459         u16 tmpcap;
 460         struct assoc_request * assoc_req = pdata_buf;
 461
 462         lbs_deb_enter(LBS_DEB_JOIN);
 463
 464         if (!adapter) {
 465                 ret = -1;
 466                 goto done;
 467         }
 468
 469         cmd->command = cpu_to_le16(cmd_802_11_ad_hoc_start);
 470
 471         /*
 472          * Fill in the parameters for 2 data structures:
 473          *   1. cmd_ds_802_11_ad_hoc_start command
 474          *   2. adapter->scantable[i]
 475          *
 476          * Driver will fill up SSID, bsstype,IBSS param, Physical Param,
 477          *   probe delay, and cap info.
 478          *
 479          * Firmware will fill up beacon period, DTIM, Basic rates
 480          *   and operational rates.
 481          */
 482
 483         memset(adhs->SSID, 0, IW_ESSID_MAX_SIZE);
 484         memcpy(adhs->SSID, assoc_req->ssid.ssid, assoc_req->ssid.ssidlength);
 485
 486         lbs_deb_join("ADHOC_S_CMD: SSID = %s\n", adhs->SSID);
 487
 488         /* set the BSS type */
 489         adhs->bsstype = cmd_bss_type_ibss;
 490         adapter->mode = IW_MODE_ADHOC;
 491         adhs->beaconperiod = adapter->beaconperiod;
 492
 493         /* set Physical param set */
 494 #define DS_PARA_IE_ID   3
 495 #define DS_PARA_IE_LEN  1
 496
 497         adhs->phyparamset.dsparamset.elementid = DS_PARA_IE_ID;
 498         adhs->phyparamset.dsparamset.len = DS_PARA_IE_LEN;
 499
 500         WARN_ON(!assoc_req->channel);
 501
 502         lbs_deb_join("ADHOC_S_CMD: Creating ADHOC on channel %d\n",
 503                assoc_req->channel);
 504
 505         adhs->phyparamset.dsparamset.currentchan = assoc_req->channel;
 506
 507         /* set IBSS param set */
 508 #define IBSS_PARA_IE_ID   6
 509 #define IBSS_PARA_IE_LEN  2
 510
 511         adhs->ssparamset.ibssparamset.elementid = IBSS_PARA_IE_ID;
 512         adhs->ssparamset.ibssparamset.len = IBSS_PARA_IE_LEN;
 513         adhs->ssparamset.ibssparamset.atimwindow = adapter->atimwindow;
 514
 515         /* set capability info */
 516         adhs->cap.ess = 0;
 517         adhs->cap.ibss = 1;
 518
 519         /* probedelay */
 520         adhs->probedelay = cpu_to_le16(cmd_scan_probe_delay_time);
 521
 522         /* set up privacy in adapter->scantable[i] */
 523         if (assoc_req->secinfo.wep_enabled) {
 524                 lbs_deb_join("ADHOC_S_CMD: WEP enabled, setting privacy on\n");
 525                 adhs->cap.privacy = AD_HOC_CAP_PRIVACY_ON;
 526         } else {
 527                 lbs_deb_join("ADHOC_S_CMD: WEP disabled, setting privacy off\n");
 528         }
 529
 530         memset(adhs->datarate, 0, sizeof(adhs->datarate));
 531
 532         if (adapter->adhoc_grate_enabled) {
 533                 memcpy(adhs->datarate, libertas_adhoc_rates_g,
 534                        min(sizeof(adhs->datarate), sizeof(libertas_adhoc_rates_g)));
 535         } else {
 536                 memcpy(adhs->datarate, libertas_adhoc_rates_b,
 537                        min(sizeof(adhs->datarate), sizeof(libertas_adhoc_rates_b)));
 538         }
 539
 540         /* Find the last non zero */
 541         for (i = 0; i < sizeof(adhs->datarate) && adhs->datarate[i]; i++) ;
 542
 543         adapter->curbssparams.numofrates = i;
 544
 545         /* Copy the ad-hoc creating rates into Current BSS state structure */
 546         memcpy(&adapter->curbssparams.datarates,
 547                &adhs->datarate, adapter->curbssparams.numofrates);
 548
 549         lbs_deb_join("ADHOC_S_CMD: rates=%02x %02x %02x %02x \n",
 550                adhs->datarate[0], adhs->datarate[1],
 551                adhs->datarate[2], adhs->datarate[3]);
 552
 553         lbs_deb_join("ADHOC_S_CMD: AD HOC Start command is ready\n");
 554
 555         if (libertas_create_dnld_countryinfo_11d(priv)) {
 556                 lbs_deb_join("ADHOC_S_CMD: dnld_countryinfo_11d failed\n");
 557                 ret = -1;
 558                 goto done;
 559         }
 560
 561         cmd->size =
 562             cpu_to_le16(sizeof(struct cmd_ds_802_11_ad_hoc_start)
 563                              + S_DS_GEN + cmdappendsize);
 564
 565         memcpy(&tmpcap, &adhs->cap, sizeof(u16));
 566         tmpcap = cpu_to_le16(tmpcap);
 567         memcpy(&adhs->cap, &tmpcap, sizeof(u16));
 568
 569         ret = 0;
 570 done:
 571         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 572         return ret;
 573 }
 574
 575 int libertas_cmd_80211_ad_hoc_stop(wlan_private * priv,
 576                                 struct cmd_ds_command *cmd)
 577 {
 578         cmd->command = cpu_to_le16(cmd_802_11_ad_hoc_stop);
 579         cmd->size = cpu_to_le16(S_DS_GEN);
 580
 581         return 0;
 582 }
 583
 584 int libertas_cmd_80211_ad_hoc_join(wlan_private * priv,
 585                                 struct cmd_ds_command *cmd, void *pdata_buf)
 586 {
 587         wlan_adapter *adapter = priv->adapter;
 588         struct cmd_ds_802_11_ad_hoc_join *padhocjoin = &cmd->params.adj;
 589         struct assoc_request * assoc_req = pdata_buf;
 590         struct bss_descriptor *bss = &assoc_req->bss;
 591         int cmdappendsize = 0;
 592         int ret = 0;
 593         u8 *card_rates;
 594         int card_rates_size;
 595         u16 tmpcap;
 596         int i;
 597
 598         lbs_deb_enter(LBS_DEB_JOIN);
 599
 600         cmd->command = cpu_to_le16(cmd_802_11_ad_hoc_join);
 601
 602         padhocjoin->bssdescriptor.bsstype = cmd_bss_type_ibss;
 603
 604         padhocjoin->bssdescriptor.beaconperiod = bss->beaconperiod;
 605
 606         memcpy(&padhocjoin->bssdescriptor.BSSID, &bss->bssid, ETH_ALEN);
 607         memcpy(&padhocjoin->bssdescriptor.SSID, &bss->ssid.ssid, bss->ssid.ssidlength);
 608
 609         memcpy(&padhocjoin->bssdescriptor.phyparamset,
 610                &bss->phyparamset, sizeof(union ieeetypes_phyparamset));
 611
 612         memcpy(&padhocjoin->bssdescriptor.ssparamset,
 613                &bss->ssparamset, sizeof(union IEEEtypes_ssparamset));
 614
 615         memcpy(&tmpcap, &bss->cap, sizeof(struct ieeetypes_capinfo));
 616         tmpcap &= CAPINFO_MASK;
 617
 618         lbs_deb_join("ADHOC_J_CMD: tmpcap=%4X CAPINFO_MASK=%4X\n",
 619                tmpcap, CAPINFO_MASK);
 620         memcpy(&padhocjoin->bssdescriptor.cap, &tmpcap,
 621                sizeof(struct ieeetypes_capinfo));
 622
 623         /* information on BSSID descriptor passed to FW */
 624         lbs_deb_join(
 625                "ADHOC_J_CMD: BSSID = " MAC_FMT ", SSID = '%s'\n",
 626                MAC_ARG(padhocjoin->bssdescriptor.BSSID),
 627                padhocjoin->bssdescriptor.SSID);
 628
 629         /* failtimeout */
 630         padhocjoin->failtimeout = cpu_to_le16(MRVDRV_ASSOCIATION_TIME_OUT);
 631
 632         /* probedelay */
 633         padhocjoin->probedelay =
 634             cpu_to_le16(cmd_scan_probe_delay_time);
 635
 636         /* Copy Data rates from the rates recorded in scan response */
 637         memset(padhocjoin->bssdescriptor.datarates, 0,
 638                sizeof(padhocjoin->bssdescriptor.datarates));
 639         memcpy(padhocjoin->bssdescriptor.datarates, bss->datarates,
 640                min(sizeof(padhocjoin->bssdescriptor.datarates),
 641                    sizeof(bss->datarates)));
 642
 643         card_rates = libertas_supported_rates;
 644         card_rates_size = sizeof(libertas_supported_rates);
 645
 646         adapter->curbssparams.channel = bss->channel;
 647
 648         if (get_common_rates(adapter, padhocjoin->bssdescriptor.datarates,
 649                              sizeof(padhocjoin->bssdescriptor.datarates),
 650                              card_rates, card_rates_size)) {
 651                 lbs_deb_join("ADHOC_J_CMD: get_common_rates returns error.\n");
 652                 ret = -1;
 653                 goto done;
 654         }
 655
 656         /* Find the last non zero */
 657         for (i = 0; i < sizeof(padhocjoin->bssdescriptor.datarates)
 658              && padhocjoin->bssdescriptor.datarates[i]; i++) ;
 659
 660         adapter->curbssparams.numofrates = i;
 661
 662         /*
 663          * Copy the adhoc joining rates to Current BSS State structure
 664          */
 665         memcpy(adapter->curbssparams.datarates,
 666                padhocjoin->bssdescriptor.datarates,
 667                adapter->curbssparams.numofrates);
 668
 669         padhocjoin->bssdescriptor.ssparamset.ibssparamset.atimwindow =
 670             cpu_to_le16(bss->atimwindow);
 671
 672         if (assoc_req->secinfo.wep_enabled) {
 673                 padhocjoin->bssdescriptor.cap.privacy = AD_HOC_CAP_PRIVACY_ON;
 674         }
 675
 676         if (adapter->psmode == wlan802_11powermodemax_psp) {
 677                 /* wake up first */
 678                 enum WLAN_802_11_POWER_MODE Localpsmode;
 679
 680                 Localpsmode = wlan802_11powermodecam;
 681                 ret = libertas_prepare_and_send_command(priv,
 682                                             cmd_802_11_ps_mode,
 683                                             cmd_act_set,
 684                                             0, 0, &Localpsmode);
 685
 686                 if (ret) {
 687                         ret = -1;
 688                         goto done;
 689                 }
 690         }
 691
 692         if (libertas_parse_dnld_countryinfo_11d(priv, bss)) {
 693                 ret = -1;
 694                 goto done;
 695         }
 696
 697         cmd->size =
 698             cpu_to_le16(sizeof(struct cmd_ds_802_11_ad_hoc_join)
 699                              + S_DS_GEN + cmdappendsize);
 700
 701         memcpy(&tmpcap, &padhocjoin->bssdescriptor.cap,
 702                sizeof(struct ieeetypes_capinfo));
 703         tmpcap = cpu_to_le16(tmpcap);
 704
 705         memcpy(&padhocjoin->bssdescriptor.cap,
 706                &tmpcap, sizeof(struct ieeetypes_capinfo));
 707
 708 done:
 709         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 710         return ret;
 711 }
 712
 713 int libertas_ret_80211_associate(wlan_private * priv,
 714                               struct cmd_ds_command *resp)
 715 {
 716         wlan_adapter *adapter = priv->adapter;
 717         int ret = 0;
 718         union iwreq_data wrqu;
 719         struct ieeetypes_assocrsp *passocrsp;
 720         struct bss_descriptor * bss;
 721
 722         lbs_deb_enter(LBS_DEB_JOIN);
 723
 724         if (!adapter->in_progress_assoc_req) {
 725                 lbs_deb_join("ASSOC_RESP: no in-progress association request\n");
 726                 ret = -1;
 727                 goto done;
 728         }
 729         bss = &adapter->in_progress_assoc_req->bss;
 730
 731         passocrsp = (struct ieeetypes_assocrsp *) & resp->params;
 732
 733         if (passocrsp->statuscode) {
 734                 libertas_mac_event_disconnected(priv);
 735
 736                 lbs_deb_join("ASSOC_RESP: Association failed, status code = %d\n",
 737                      passocrsp->statuscode);
 738
 739                 ret = -1;
 740                 goto done;
 741         }
 742
 743         lbs_dbg_hex("ASSOC_RESP:", (void *)&resp->params,
 744                 le16_to_cpu(resp->size) - S_DS_GEN);
 745
 746         /* Send a Media Connected event, according to the Spec */
 747         adapter->connect_status = libertas_connected;
 748
 749         lbs_deb_join("ASSOC_RESP: %s\n", bss->ssid.ssid);
 750
 751         /* Update current SSID and BSSID */
 752         memcpy(&adapter->curbssparams.ssid,
 753                &bss->ssid, sizeof(struct WLAN_802_11_SSID));
 754         memcpy(adapter->curbssparams.bssid, bss->bssid, ETH_ALEN);
 755
 756         lbs_deb_join("ASSOC_RESP: currentpacketfilter is %x\n",
 757                adapter->currentpacketfilter);
 758
 759         adapter->SNR[TYPE_RXPD][TYPE_AVG] = 0;
 760         adapter->NF[TYPE_RXPD][TYPE_AVG] = 0;
 761
 762         memset(adapter->rawSNR, 0x00, sizeof(adapter->rawSNR));
 763         memset(adapter->rawNF, 0x00, sizeof(adapter->rawNF));
 764         adapter->nextSNRNF = 0;
 765         adapter->numSNRNF = 0;
 766
 767         netif_carrier_on(priv->dev);
 768         netif_wake_queue(priv->dev);
 769
 770         netif_carrier_on(priv->mesh_dev);
 771         netif_wake_queue(priv->mesh_dev);
 772
 773         lbs_deb_join("ASSOC_RESP: Associated \n");
 774
 775         memcpy(wrqu.ap_addr.sa_data, adapter->curbssparams.bssid, ETH_ALEN);
 776         wrqu.ap_addr.sa_family = ARPHRD_ETHER;
 777         wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
 778
 779 done:
 780         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 781         return ret;
 782 }
 783
 784 int libertas_ret_80211_disassociate(wlan_private * priv,
 785                                  struct cmd_ds_command *resp)
 786 {
 787         lbs_deb_enter(LBS_DEB_JOIN);
 788
 789         libertas_mac_event_disconnected(priv);
 790
 791         lbs_deb_leave(LBS_DEB_JOIN);
 792         return 0;
 793 }
 794
 795 int libertas_ret_80211_ad_hoc_start(wlan_private * priv,
 796                                  struct cmd_ds_command *resp)
 797 {
 798         wlan_adapter *adapter = priv->adapter;
 799         int ret = 0;
 800         u16 command = le16_to_cpu(resp->command);
 801         u16 result = le16_to_cpu(resp->result);
 802         struct cmd_ds_802_11_ad_hoc_result *padhocresult;
 803         union iwreq_data wrqu;
 804         struct bss_descriptor *bss;
 805
 806         lbs_deb_enter(LBS_DEB_JOIN);
 807
 808         padhocresult = &resp->params.result;
 809
 810         lbs_deb_join("ADHOC_RESP: size = %d\n", le16_to_cpu(resp->size));
 811         lbs_deb_join("ADHOC_RESP: command = %x\n", command);
 812         lbs_deb_join("ADHOC_RESP: result = %x\n", result);
 813
 814         if (!adapter->in_progress_assoc_req) {
 815                 lbs_deb_join("ADHOC_RESP: no in-progress association request\n");
 816                 ret = -1;
 817                 goto done;
 818         }
 819         bss = &adapter->in_progress_assoc_req->bss;
 820
 821         /*
 822          * Join result code 0 --> SUCCESS
 823          */
 824         if (result) {
 825                 lbs_deb_join("ADHOC_RESP: failed\n");
 826                 if (adapter->connect_status == libertas_connected) {
 827                         libertas_mac_event_disconnected(priv);
 828                 }
 829                 ret = -1;
 830                 goto done;
 831         }
 832
 833         /*
 834          * Now the join cmd should be successful
 835          * If BSSID has changed use SSID to compare instead of BSSID
 836          */
 837         lbs_deb_join("ADHOC_RESP: %s\n", bss->ssid.ssid);
 838
 839         /* Send a Media Connected event, according to the Spec */
 840         adapter->connect_status = libertas_connected;
 841
 842         if (command == cmd_ret_802_11_ad_hoc_start) {
 843                 /* Update the created network descriptor with the new BSSID */
 844                 memcpy(bss->bssid, padhocresult->BSSID, ETH_ALEN);
 845         }
 846
 847         /* Set the BSSID from the joined/started descriptor */
 848         memcpy(&adapter->curbssparams.bssid, bss->bssid, ETH_ALEN);
 849
 850         /* Set the new SSID to current SSID */
 851         memcpy(&adapter->curbssparams.ssid, &bss->ssid,
 852                sizeof(struct WLAN_802_11_SSID));
 853
 854         netif_carrier_on(priv->dev);
 855         netif_wake_queue(priv->dev);
 856
 857         netif_carrier_on(priv->mesh_dev);
 858         netif_wake_queue(priv->mesh_dev);
 859
 860         memset(&wrqu, 0, sizeof(wrqu));
 861         memcpy(wrqu.ap_addr.sa_data, adapter->curbssparams.bssid, ETH_ALEN);
 862         wrqu.ap_addr.sa_family = ARPHRD_ETHER;
 863         wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
 864
 865         lbs_deb_join("ADHOC_RESP: - Joined/Started Ad Hoc\n");
 866         lbs_deb_join("ADHOC_RESP: channel = %d\n", adapter->curbssparams.channel);
 867         lbs_deb_join("ADHOC_RESP: BSSID = " MAC_FMT "\n",
 868                MAC_ARG(padhocresult->BSSID));
 869
 870 done:
 871         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 872         return ret;
 873 }
 874
 875 int libertas_ret_80211_ad_hoc_stop(wlan_private * priv,
 876                                 struct cmd_ds_command *resp)
 877 {
 878         lbs_deb_enter(LBS_DEB_JOIN);
 879
 880         libertas_mac_event_disconnected(priv);
 881
 882         lbs_deb_leave(LBS_DEB_JOIN);
 883         return 0;
 884 }