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         lbs_deb_enter(LBS_DEB_JOIN);
 267
 268         cmd->command = cpu_to_le16(cmd_802_11_authenticate);
 269         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_authenticate)
 270                                 + S_DS_GEN);
 271
 272         /* translate auth mode to 802.11 defined wire value */
 273         switch (adapter->secinfo.auth_mode) {
 274         case IW_AUTH_ALG_OPEN_SYSTEM:
 275                 pauthenticate->authtype = 0x00;
 276                 break;
 277         case IW_AUTH_ALG_SHARED_KEY:
 278                 pauthenticate->authtype = 0x01;
 279                 break;
 280         case IW_AUTH_ALG_LEAP:
 281                 pauthenticate->authtype = 0x80;
 282                 break;
 283         default:
 284                 lbs_deb_join("AUTH_CMD: invalid auth alg 0x%X\n",
 285                              adapter->secinfo.auth_mode);
 286                 goto out;
 287         }
 288
 289         memcpy(pauthenticate->macaddr, bssid, ETH_ALEN);
 290
 291         lbs_deb_join("AUTH_CMD: BSSID is : " MAC_FMT " auth=0x%X\n",
 292                      MAC_ARG(bssid), pauthenticate->authtype);
 293         ret = 0;
 294
 295 out:
 296         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 297         return ret;
 298 }
 299
 300 int libertas_cmd_80211_deauthenticate(wlan_private * priv,
 301                                    struct cmd_ds_command *cmd)
 302 {
 303         wlan_adapter *adapter = priv->adapter;
 304         struct cmd_ds_802_11_deauthenticate *dauth = &cmd->params.deauth;
 305
 306         lbs_deb_enter(LBS_DEB_JOIN);
 307
 308         cmd->command = cpu_to_le16(cmd_802_11_deauthenticate);
 309         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_deauthenticate) +
 310                              S_DS_GEN);
 311
 312         /* set AP MAC address */
 313         memmove(dauth->macaddr, adapter->curbssparams.bssid, ETH_ALEN);
 314
 315         /* Reason code 3 = Station is leaving */
 316 #define REASON_CODE_STA_LEAVING 3
 317         dauth->reasoncode = cpu_to_le16(REASON_CODE_STA_LEAVING);
 318
 319         lbs_deb_leave(LBS_DEB_JOIN);
 320         return 0;
 321 }
 322
 323 int libertas_cmd_80211_associate(wlan_private * priv,
 324                               struct cmd_ds_command *cmd, void *pdata_buf)
 325 {
 326         wlan_adapter *adapter = priv->adapter;
 327         struct cmd_ds_802_11_associate *passo = &cmd->params.associate;
 328         int ret = 0;
 329         struct assoc_request * assoc_req = pdata_buf;
 330         struct bss_descriptor * bss = &assoc_req->bss;
 331         u8 *card_rates;
 332         u8 *pos;
 333         int card_rates_size;
 334         u16 tmpcap, tmplen;
 335         struct mrvlietypes_ssidparamset *ssid;
 336         struct mrvlietypes_phyparamset *phy;
 337         struct mrvlietypes_ssparamset *ss;
 338         struct mrvlietypes_ratesparamset *rates;
 339         struct mrvlietypes_rsnparamset *rsn;
 340
 341         lbs_deb_enter(LBS_DEB_JOIN);
 342
 343         pos = (u8 *) passo;
 344
 345         if (!adapter) {
 346                 ret = -1;
 347                 goto done;
 348         }
 349
 350         cmd->command = cpu_to_le16(cmd_802_11_associate);
 351
 352         memcpy(passo->peerstaaddr, bss->bssid, sizeof(passo->peerstaaddr));
 353         pos += sizeof(passo->peerstaaddr);
 354
 355         /* set the listen interval */
 356         passo->listeninterval = cpu_to_le16(adapter->listeninterval);
 357
 358         pos += sizeof(passo->capinfo);
 359         pos += sizeof(passo->listeninterval);
 360         pos += sizeof(passo->bcnperiod);
 361         pos += sizeof(passo->dtimperiod);
 362
 363         ssid = (struct mrvlietypes_ssidparamset *) pos;
 364         ssid->header.type = cpu_to_le16(TLV_TYPE_SSID);
 365         tmplen = bss->ssid.ssidlength;
 366         ssid->header.len = cpu_to_le16(tmplen);
 367         memcpy(ssid->ssid, bss->ssid.ssid, tmplen);
 368         pos += sizeof(ssid->header) + tmplen;
 369
 370         phy = (struct mrvlietypes_phyparamset *) pos;
 371         phy->header.type = cpu_to_le16(TLV_TYPE_PHY_DS);
 372         tmplen = sizeof(phy->fh_ds.dsparamset);
 373         phy->header.len = cpu_to_le16(tmplen);
 374         memcpy(&phy->fh_ds.dsparamset,
 375                &bss->phyparamset.dsparamset.currentchan,
 376                tmplen);
 377         pos += sizeof(phy->header) + tmplen;
 378
 379         ss = (struct mrvlietypes_ssparamset *) pos;
 380         ss->header.type = cpu_to_le16(TLV_TYPE_CF);
 381         tmplen = sizeof(ss->cf_ibss.cfparamset);
 382         ss->header.len = cpu_to_le16(tmplen);
 383         pos += sizeof(ss->header) + tmplen;
 384
 385         rates = (struct mrvlietypes_ratesparamset *) pos;
 386         rates->header.type = cpu_to_le16(TLV_TYPE_RATES);
 387
 388         memcpy(&rates->rates, &bss->libertas_supported_rates, WLAN_SUPPORTED_RATES);
 389
 390         card_rates = libertas_supported_rates;
 391         card_rates_size = sizeof(libertas_supported_rates);
 392
 393         if (get_common_rates(adapter, rates->rates, WLAN_SUPPORTED_RATES,
 394                              card_rates, card_rates_size)) {
 395                 ret = -1;
 396                 goto done;
 397         }
 398
 399         tmplen = min_t(size_t, strlen(rates->rates), WLAN_SUPPORTED_RATES);
 400         adapter->curbssparams.numofrates = tmplen;
 401
 402         pos += sizeof(rates->header) + tmplen;
 403         rates->header.len = cpu_to_le16(tmplen);
 404
 405         if (assoc_req->secinfo.WPAenabled || assoc_req->secinfo.WPA2enabled) {
 406                 rsn = (struct mrvlietypes_rsnparamset *) pos;
 407                 /* WPA_IE or WPA2_IE */
 408                 rsn->header.type = cpu_to_le16((u16) assoc_req->wpa_ie[0]);
 409                 tmplen = (u16) assoc_req->wpa_ie[1];
 410                 rsn->header.len = cpu_to_le16(tmplen);
 411                 memcpy(rsn->rsnie, &assoc_req->wpa_ie[2], tmplen);
 412                 lbs_dbg_hex("ASSOC_CMD: RSN IE", (u8 *) rsn,
 413                         sizeof(rsn->header) + tmplen);
 414                 pos += sizeof(rsn->header) + tmplen;
 415         }
 416
 417         /* update curbssparams */
 418         adapter->curbssparams.channel = bss->phyparamset.dsparamset.currentchan;
 419
 420         /* Copy the infra. association rates into Current BSS state structure */
 421         memcpy(&adapter->curbssparams.datarates, &rates->rates,
 422                min_t(size_t, sizeof(adapter->curbssparams.datarates),
 423                      cpu_to_le16(rates->header.len)));
 424
 425         lbs_deb_join("ASSOC_CMD: rates->header.len = %d\n",
 426                      cpu_to_le16(rates->header.len));
 427
 428         /* set IBSS field */
 429         if (bss->mode == IW_MODE_INFRA) {
 430 #define CAPINFO_ESS_MODE 1
 431                 passo->capinfo.ess = CAPINFO_ESS_MODE;
 432         }
 433
 434         if (libertas_parse_dnld_countryinfo_11d(priv, bss)) {
 435                 ret = -1;
 436                 goto done;
 437         }
 438
 439         cmd->size = cpu_to_le16((u16) (pos - (u8 *) passo) + S_DS_GEN);
 440
 441         /* set the capability info at last */
 442         memcpy(&tmpcap, &bss->cap, sizeof(passo->capinfo));
 443         tmpcap &= CAPINFO_MASK;
 444         lbs_deb_join("ASSOC_CMD: tmpcap=%4X CAPINFO_MASK=%4X\n",
 445                      tmpcap, CAPINFO_MASK);
 446         memcpy(&passo->capinfo, &tmpcap, sizeof(passo->capinfo));
 447
 448 done:
 449         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 450         return ret;
 451 }
 452
 453 int libertas_cmd_80211_ad_hoc_start(wlan_private * priv,
 454                                  struct cmd_ds_command *cmd, void *pdata_buf)
 455 {
 456         wlan_adapter *adapter = priv->adapter;
 457         struct cmd_ds_802_11_ad_hoc_start *adhs = &cmd->params.ads;
 458         int ret = 0;
 459         int cmdappendsize = 0;
 460         int i;
 461         struct assoc_request * assoc_req = pdata_buf;
 462
 463         lbs_deb_enter(LBS_DEB_JOIN);
 464
 465         if (!adapter) {
 466                 ret = -1;
 467                 goto done;
 468         }
 469
 470         cmd->command = cpu_to_le16(cmd_802_11_ad_hoc_start);
 471
 472         /*
 473          * Fill in the parameters for 2 data structures:
 474          *   1. cmd_ds_802_11_ad_hoc_start command
 475          *   2. adapter->scantable[i]
 476          *
 477          * Driver will fill up SSID, bsstype,IBSS param, Physical Param,
 478          *   probe delay, and cap info.
 479          *
 480          * Firmware will fill up beacon period, DTIM, Basic rates
 481          *   and operational rates.
 482          */
 483
 484         memset(adhs->SSID, 0, IW_ESSID_MAX_SIZE);
 485         memcpy(adhs->SSID, assoc_req->ssid.ssid, assoc_req->ssid.ssidlength);
 486
 487         lbs_deb_join("ADHOC_S_CMD: SSID = %s\n", adhs->SSID);
 488
 489         /* set the BSS type */
 490         adhs->bsstype = cmd_bss_type_ibss;
 491         adapter->mode = IW_MODE_ADHOC;
 492         adhs->beaconperiod = cpu_to_le16(adapter->beaconperiod);
 493
 494         /* set Physical param set */
 495 #define DS_PARA_IE_ID   3
 496 #define DS_PARA_IE_LEN  1
 497
 498         adhs->phyparamset.dsparamset.elementid = DS_PARA_IE_ID;
 499         adhs->phyparamset.dsparamset.len = DS_PARA_IE_LEN;
 500
 501         WARN_ON(!assoc_req->channel);
 502
 503         lbs_deb_join("ADHOC_S_CMD: Creating ADHOC on channel %d\n",
 504                      assoc_req->channel);
 505
 506         adhs->phyparamset.dsparamset.currentchan = assoc_req->channel;
 507
 508         /* set IBSS param set */
 509 #define IBSS_PARA_IE_ID   6
 510 #define IBSS_PARA_IE_LEN  2
 511
 512         adhs->ssparamset.ibssparamset.elementid = IBSS_PARA_IE_ID;
 513         adhs->ssparamset.ibssparamset.len = IBSS_PARA_IE_LEN;
 514         adhs->ssparamset.ibssparamset.atimwindow = cpu_to_le16(adapter->atimwindow);
 515
 516         /* set capability info */
 517         adhs->cap.ess = 0;
 518         adhs->cap.ibss = 1;
 519
 520         /* probedelay */
 521         adhs->probedelay = cpu_to_le16(cmd_scan_probe_delay_time);
 522
 523         /* set up privacy in adapter->scantable[i] */
 524         if (assoc_req->secinfo.wep_enabled) {
 525                 lbs_deb_join("ADHOC_S_CMD: WEP enabled, setting privacy on\n");
 526                 adhs->cap.privacy = AD_HOC_CAP_PRIVACY_ON;
 527         } else {
 528                 lbs_deb_join("ADHOC_S_CMD: WEP disabled, setting privacy off\n");
 529         }
 530
 531         memset(adhs->datarate, 0, sizeof(adhs->datarate));
 532
 533         if (adapter->adhoc_grate_enabled) {
 534                 memcpy(adhs->datarate, libertas_adhoc_rates_g,
 535                        min(sizeof(adhs->datarate), sizeof(libertas_adhoc_rates_g)));
 536         } else {
 537                 memcpy(adhs->datarate, libertas_adhoc_rates_b,
 538                        min(sizeof(adhs->datarate), sizeof(libertas_adhoc_rates_b)));
 539         }
 540
 541         /* Find the last non zero */
 542         for (i = 0; i < sizeof(adhs->datarate) && adhs->datarate[i]; i++) ;
 543
 544         adapter->curbssparams.numofrates = i;
 545
 546         /* Copy the ad-hoc creating rates into Current BSS state structure */
 547         memcpy(&adapter->curbssparams.datarates,
 548                &adhs->datarate, adapter->curbssparams.numofrates);
 549
 550         lbs_deb_join("ADHOC_S_CMD: rates=%02x %02x %02x %02x \n",
 551                adhs->datarate[0], adhs->datarate[1],
 552                adhs->datarate[2], adhs->datarate[3]);
 553
 554         lbs_deb_join("ADHOC_S_CMD: AD HOC Start command is ready\n");
 555
 556         if (libertas_create_dnld_countryinfo_11d(priv)) {
 557                 lbs_deb_join("ADHOC_S_CMD: dnld_countryinfo_11d failed\n");
 558                 ret = -1;
 559                 goto done;
 560         }
 561
 562         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_ad_hoc_start) +
 563                                 S_DS_GEN + cmdappendsize);
 564
 565         ret = 0;
 566 done:
 567         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 568         return ret;
 569 }
 570
 571 int libertas_cmd_80211_ad_hoc_stop(wlan_private * priv,
 572                                 struct cmd_ds_command *cmd)
 573 {
 574         cmd->command = cpu_to_le16(cmd_802_11_ad_hoc_stop);
 575         cmd->size = cpu_to_le16(S_DS_GEN);
 576
 577         return 0;
 578 }
 579
 580 int libertas_cmd_80211_ad_hoc_join(wlan_private * priv,
 581                                 struct cmd_ds_command *cmd, void *pdata_buf)
 582 {
 583         wlan_adapter *adapter = priv->adapter;
 584         struct cmd_ds_802_11_ad_hoc_join *padhocjoin = &cmd->params.adj;
 585         struct assoc_request * assoc_req = pdata_buf;
 586         struct bss_descriptor *bss = &assoc_req->bss;
 587         int cmdappendsize = 0;
 588         int ret = 0;
 589         u8 *card_rates;
 590         int card_rates_size;
 591         u16 tmpcap;
 592         int i;
 593
 594         lbs_deb_enter(LBS_DEB_JOIN);
 595
 596         cmd->command = cpu_to_le16(cmd_802_11_ad_hoc_join);
 597
 598         padhocjoin->bssdescriptor.bsstype = cmd_bss_type_ibss;
 599
 600         padhocjoin->bssdescriptor.beaconperiod = cpu_to_le16(bss->beaconperiod);
 601
 602         memcpy(&padhocjoin->bssdescriptor.BSSID, &bss->bssid, ETH_ALEN);
 603         memcpy(&padhocjoin->bssdescriptor.SSID, &bss->ssid.ssid, bss->ssid.ssidlength);
 604
 605         memcpy(&padhocjoin->bssdescriptor.phyparamset,
 606                &bss->phyparamset, sizeof(union ieeetypes_phyparamset));
 607
 608         memcpy(&padhocjoin->bssdescriptor.ssparamset,
 609                &bss->ssparamset, sizeof(union IEEEtypes_ssparamset));
 610
 611         memcpy(&tmpcap, &bss->cap, sizeof(struct ieeetypes_capinfo));
 612         tmpcap &= CAPINFO_MASK;
 613
 614         lbs_deb_join("ADHOC_J_CMD: tmpcap=%4X CAPINFO_MASK=%4X\n",
 615                tmpcap, CAPINFO_MASK);
 616         memcpy(&padhocjoin->bssdescriptor.cap, &tmpcap,
 617                sizeof(struct ieeetypes_capinfo));
 618
 619         /* information on BSSID descriptor passed to FW */
 620         lbs_deb_join(
 621                "ADHOC_J_CMD: BSSID = " MAC_FMT ", SSID = '%s'\n",
 622                MAC_ARG(padhocjoin->bssdescriptor.BSSID),
 623                padhocjoin->bssdescriptor.SSID);
 624
 625         /* failtimeout */
 626         padhocjoin->failtimeout = cpu_to_le16(MRVDRV_ASSOCIATION_TIME_OUT);
 627
 628         /* probedelay */
 629         padhocjoin->probedelay = cpu_to_le16(cmd_scan_probe_delay_time);
 630
 631         /* Copy Data rates from the rates recorded in scan response */
 632         memset(padhocjoin->bssdescriptor.datarates, 0,
 633                sizeof(padhocjoin->bssdescriptor.datarates));
 634         memcpy(padhocjoin->bssdescriptor.datarates, bss->datarates,
 635                min(sizeof(padhocjoin->bssdescriptor.datarates),
 636                    sizeof(bss->datarates)));
 637
 638         card_rates = libertas_supported_rates;
 639         card_rates_size = sizeof(libertas_supported_rates);
 640
 641         adapter->curbssparams.channel = bss->channel;
 642
 643         if (get_common_rates(adapter, padhocjoin->bssdescriptor.datarates,
 644                              sizeof(padhocjoin->bssdescriptor.datarates),
 645                              card_rates, card_rates_size)) {
 646                 lbs_deb_join("ADHOC_J_CMD: get_common_rates returns error.\n");
 647                 ret = -1;
 648                 goto done;
 649         }
 650
 651         /* Find the last non zero */
 652         for (i = 0; i < sizeof(padhocjoin->bssdescriptor.datarates)
 653              && padhocjoin->bssdescriptor.datarates[i]; i++) ;
 654
 655         adapter->curbssparams.numofrates = i;
 656
 657         /*
 658          * Copy the adhoc joining rates to Current BSS State structure
 659          */
 660         memcpy(adapter->curbssparams.datarates,
 661                padhocjoin->bssdescriptor.datarates,
 662                adapter->curbssparams.numofrates);
 663
 664         padhocjoin->bssdescriptor.ssparamset.ibssparamset.atimwindow =
 665             cpu_to_le16(bss->atimwindow);
 666
 667         if (assoc_req->secinfo.wep_enabled) {
 668                 padhocjoin->bssdescriptor.cap.privacy = AD_HOC_CAP_PRIVACY_ON;
 669         }
 670
 671         if (adapter->psmode == wlan802_11powermodemax_psp) {
 672                 /* wake up first */
 673                 __le32 Localpsmode;
 674
 675                 Localpsmode = cpu_to_le32(wlan802_11powermodecam);
 676                 ret = libertas_prepare_and_send_command(priv,
 677                                             cmd_802_11_ps_mode,
 678                                             cmd_act_set,
 679                                             0, 0, &Localpsmode);
 680
 681                 if (ret) {
 682                         ret = -1;
 683                         goto done;
 684                 }
 685         }
 686
 687         if (libertas_parse_dnld_countryinfo_11d(priv, bss)) {
 688                 ret = -1;
 689                 goto done;
 690         }
 691
 692         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_ad_hoc_join) +
 693                                 S_DS_GEN + cmdappendsize);
 694
 695 done:
 696         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 697         return ret;
 698 }
 699
 700 int libertas_ret_80211_associate(wlan_private * priv,
 701                               struct cmd_ds_command *resp)
 702 {
 703         wlan_adapter *adapter = priv->adapter;
 704         int ret = 0;
 705         union iwreq_data wrqu;
 706         struct ieeetypes_assocrsp *passocrsp;
 707         struct bss_descriptor * bss;
 708
 709         lbs_deb_enter(LBS_DEB_JOIN);
 710
 711         if (!adapter->in_progress_assoc_req) {
 712                 lbs_deb_join("ASSOC_RESP: no in-progress association request\n");
 713                 ret = -1;
 714                 goto done;
 715         }
 716         bss = &adapter->in_progress_assoc_req->bss;
 717
 718         passocrsp = (struct ieeetypes_assocrsp *) & resp->params;
 719
 720         if (le16_to_cpu(passocrsp->statuscode)) {
 721                 libertas_mac_event_disconnected(priv);
 722
 723                 lbs_deb_join("ASSOC_RESP: Association failed, status code = %d\n",
 724                              le16_to_cpu(passocrsp->statuscode));
 725
 726                 ret = -1;
 727                 goto done;
 728         }
 729
 730         lbs_dbg_hex("ASSOC_RESP:", (void *)&resp->params,
 731                 le16_to_cpu(resp->size) - S_DS_GEN);
 732
 733         /* Send a Media Connected event, according to the Spec */
 734         adapter->connect_status = libertas_connected;
 735
 736         lbs_deb_join("ASSOC_RESP: %s\n", bss->ssid.ssid);
 737
 738         /* Update current SSID and BSSID */
 739         memcpy(&adapter->curbssparams.ssid,
 740                &bss->ssid, sizeof(struct WLAN_802_11_SSID));
 741         memcpy(adapter->curbssparams.bssid, bss->bssid, ETH_ALEN);
 742
 743         lbs_deb_join("ASSOC_RESP: currentpacketfilter is %x\n",
 744                adapter->currentpacketfilter);
 745
 746         adapter->SNR[TYPE_RXPD][TYPE_AVG] = 0;
 747         adapter->NF[TYPE_RXPD][TYPE_AVG] = 0;
 748
 749         memset(adapter->rawSNR, 0x00, sizeof(adapter->rawSNR));
 750         memset(adapter->rawNF, 0x00, sizeof(adapter->rawNF));
 751         adapter->nextSNRNF = 0;
 752         adapter->numSNRNF = 0;
 753
 754         netif_carrier_on(priv->dev);
 755         netif_wake_queue(priv->dev);
 756
 757         netif_carrier_on(priv->mesh_dev);
 758         netif_wake_queue(priv->mesh_dev);
 759
 760         lbs_deb_join("ASSOC_RESP: Associated \n");
 761
 762         memcpy(wrqu.ap_addr.sa_data, adapter->curbssparams.bssid, ETH_ALEN);
 763         wrqu.ap_addr.sa_family = ARPHRD_ETHER;
 764         wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
 765
 766 done:
 767         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 768         return ret;
 769 }
 770
 771 int libertas_ret_80211_disassociate(wlan_private * priv,
 772                                  struct cmd_ds_command *resp)
 773 {
 774         lbs_deb_enter(LBS_DEB_JOIN);
 775
 776         libertas_mac_event_disconnected(priv);
 777
 778         lbs_deb_leave(LBS_DEB_JOIN);
 779         return 0;
 780 }
 781
 782 int libertas_ret_80211_ad_hoc_start(wlan_private * priv,
 783                                  struct cmd_ds_command *resp)
 784 {
 785         wlan_adapter *adapter = priv->adapter;
 786         int ret = 0;
 787         u16 command = le16_to_cpu(resp->command);
 788         u16 result = le16_to_cpu(resp->result);
 789         struct cmd_ds_802_11_ad_hoc_result *padhocresult;
 790         union iwreq_data wrqu;
 791         struct bss_descriptor *bss;
 792
 793         lbs_deb_enter(LBS_DEB_JOIN);
 794
 795         padhocresult = &resp->params.result;
 796
 797         lbs_deb_join("ADHOC_RESP: size = %d\n", le16_to_cpu(resp->size));
 798         lbs_deb_join("ADHOC_RESP: command = %x\n", command);
 799         lbs_deb_join("ADHOC_RESP: result = %x\n", result);
 800
 801         if (!adapter->in_progress_assoc_req) {
 802                 lbs_deb_join("ADHOC_RESP: no in-progress association request\n");
 803                 ret = -1;
 804                 goto done;
 805         }
 806         bss = &adapter->in_progress_assoc_req->bss;
 807
 808         /*
 809          * Join result code 0 --> SUCCESS
 810          */
 811         if (result) {
 812                 lbs_deb_join("ADHOC_RESP: failed\n");
 813                 if (adapter->connect_status == libertas_connected) {
 814                         libertas_mac_event_disconnected(priv);
 815                 }
 816                 ret = -1;
 817                 goto done;
 818         }
 819
 820         /*
 821          * Now the join cmd should be successful
 822          * If BSSID has changed use SSID to compare instead of BSSID
 823          */
 824         lbs_deb_join("ADHOC_RESP: %s\n", bss->ssid.ssid);
 825
 826         /* Send a Media Connected event, according to the Spec */
 827         adapter->connect_status = libertas_connected;
 828
 829         if (command == cmd_ret_802_11_ad_hoc_start) {
 830                 /* Update the created network descriptor with the new BSSID */
 831                 memcpy(bss->bssid, padhocresult->BSSID, ETH_ALEN);
 832         }
 833
 834         /* Set the BSSID from the joined/started descriptor */
 835         memcpy(&adapter->curbssparams.bssid, bss->bssid, ETH_ALEN);
 836
 837         /* Set the new SSID to current SSID */
 838         memcpy(&adapter->curbssparams.ssid, &bss->ssid,
 839                sizeof(struct WLAN_802_11_SSID));
 840
 841         netif_carrier_on(priv->dev);
 842         netif_wake_queue(priv->dev);
 843
 844         netif_carrier_on(priv->mesh_dev);
 845         netif_wake_queue(priv->mesh_dev);
 846
 847         memset(&wrqu, 0, sizeof(wrqu));
 848         memcpy(wrqu.ap_addr.sa_data, adapter->curbssparams.bssid, ETH_ALEN);
 849         wrqu.ap_addr.sa_family = ARPHRD_ETHER;
 850         wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
 851
 852         lbs_deb_join("ADHOC_RESP: - Joined/Started Ad Hoc\n");
 853         lbs_deb_join("ADHOC_RESP: channel = %d\n", adapter->curbssparams.channel);
 854         lbs_deb_join("ADHOC_RESP: BSSID = " MAC_FMT "\n",
 855                MAC_ARG(padhocresult->BSSID));
 856
 857 done:
 858         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 859         return ret;
 860 }
 861
 862 int libertas_ret_80211_ad_hoc_stop(wlan_private * priv,
 863                                 struct cmd_ds_command *resp)
 864 {
 865         lbs_deb_enter(LBS_DEB_JOIN);
 866
 867         libertas_mac_event_disconnected(priv);
 868
 869         lbs_deb_leave(LBS_DEB_JOIN);
 870         return 0;
 871 }