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 /**
  21  *  @brief This function finds out the common rates between rate1 and rate2.
  22  *
  23  * It will fill common rates in rate1 as output if found.
  24  *
  25  * NOTE: Setting the MSB of the basic rates need to be taken
  26  *   care, either before or after calling this function
  27  *
  28  *  @param adapter     A pointer to wlan_adapter structure
  29  *  @param rate1       the buffer which keeps input and output
  30  *  @param rate1_size  the size of rate1 buffer
  31  *  @param rate2       the buffer which keeps rate2
  32  *  @param rate2_size  the size of rate2 buffer.
  33  *
  34  *  @return            0 or -1
  35  */
  36 static int get_common_rates(wlan_adapter * adapter, u8 * rate1,
  37                             int rate1_size, u8 * rate2, int rate2_size)
  38 {
  39         u8 *ptr = rate1;
  40         int ret = 0;
  41         u8 tmp[30];
  42         int i;
  43
  44         memset(&tmp, 0, sizeof(tmp));
  45         memcpy(&tmp, rate1, min_t(size_t, rate1_size, sizeof(tmp)));
  46         memset(rate1, 0, rate1_size);
  47
  48         /* Mask the top bit of the original values */
  49         for (i = 0; tmp[i] && i < sizeof(tmp); i++)
  50                 tmp[i] &= 0x7F;
  51
  52         for (i = 0; rate2[i] && i < rate2_size; i++) {
  53                 /* Check for Card Rate in tmp, excluding the top bit */
  54                 if (strchr(tmp, rate2[i] & 0x7F)) {
  55                         /* values match, so copy the Card Rate to rate1 */
  56                         *rate1++ = rate2[i];
  57                 }
  58         }
  59
  60         lbs_dbg_hex("rate1 (AP) rates:", tmp, sizeof(tmp));
  61         lbs_dbg_hex("rate2 (Card) rates:", rate2, rate2_size);
  62         lbs_dbg_hex("Common rates:", ptr, rate1_size);
  63         lbs_deb_join("Tx datarate is set to 0x%X\n", adapter->datarate);
  64
  65         if (!adapter->is_datarate_auto) {
  66                 while (*ptr) {
  67                         if ((*ptr & 0x7f) == adapter->datarate) {
  68                                 ret = 0;
  69                                 goto done;
  70                         }
  71                         ptr++;
  72                 }
  73                 lbs_pr_alert( "Previously set fixed data rate %#x isn't "
  74                        "compatible with the network.\n", adapter->datarate);
  75
  76                 ret = -1;
  77                 goto done;
  78         }
  79
  80         ret = 0;
  81 done:
  82         return ret;
  83 }
  84
  85 int libertas_send_deauth(wlan_private * priv)
  86 {
  87         wlan_adapter *adapter = priv->adapter;
  88         int ret = 0;
  89
  90         if (adapter->mode == IW_MODE_INFRA &&
  91             adapter->connect_status == LIBERTAS_CONNECTED)
  92                 ret = libertas_send_deauthentication(priv);
  93         else
  94                 ret = -ENOTSUPP;
  95
  96         return ret;
  97 }
  98
  99 /**
 100  *  @brief Associate to a specific BSS discovered in a scan
 101  *
 102  *  @param priv      A pointer to wlan_private structure
 103  *  @param pbssdesc  Pointer to the BSS descriptor to associate with.
 104  *
 105  *  @return          0-success, otherwise fail
 106  */
 107 int wlan_associate(wlan_private * priv, struct assoc_request * assoc_req)
 108 {
 109         wlan_adapter *adapter = priv->adapter;
 110         int ret;
 111
 112         lbs_deb_enter(LBS_DEB_JOIN);
 113
 114         ret = libertas_prepare_and_send_command(priv, CMD_802_11_AUTHENTICATE,
 115                                     0, CMD_OPTION_WAITFORRSP,
 116                                     0, assoc_req->bss.bssid);
 117
 118         if (ret)
 119                 goto done;
 120
 121         /* set preamble to firmware */
 122         if (   (adapter->capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
 123             && (assoc_req->bss.capability & WLAN_CAPABILITY_SHORT_PREAMBLE))
 124                 adapter->preamble = CMD_TYPE_SHORT_PREAMBLE;
 125         else
 126                 adapter->preamble = CMD_TYPE_LONG_PREAMBLE;
 127
 128         libertas_set_radio_control(priv);
 129
 130         ret = libertas_prepare_and_send_command(priv, CMD_802_11_ASSOCIATE,
 131                                     0, CMD_OPTION_WAITFORRSP, 0, assoc_req);
 132
 133 done:
 134         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 135         return ret;
 136 }
 137
 138 /**
 139  *  @brief Start an Adhoc Network
 140  *
 141  *  @param priv         A pointer to wlan_private structure
 142  *  @param adhocssid    The ssid of the Adhoc Network
 143  *  @return             0--success, -1--fail
 144  */
 145 int libertas_start_adhoc_network(wlan_private * priv, struct assoc_request * assoc_req)
 146 {
 147         wlan_adapter *adapter = priv->adapter;
 148         int ret = 0;
 149
 150         adapter->adhoccreate = 1;
 151
 152         if (adapter->capability & WLAN_CAPABILITY_SHORT_PREAMBLE) {
 153                 lbs_deb_join("AdhocStart: Short preamble\n");
 154                 adapter->preamble = CMD_TYPE_SHORT_PREAMBLE;
 155         } else {
 156                 lbs_deb_join("AdhocStart: Long preamble\n");
 157                 adapter->preamble = CMD_TYPE_LONG_PREAMBLE;
 158         }
 159
 160         libertas_set_radio_control(priv);
 161
 162         lbs_deb_join("AdhocStart: channel = %d\n", assoc_req->channel);
 163         lbs_deb_join("AdhocStart: band = %d\n", assoc_req->band);
 164
 165         ret = libertas_prepare_and_send_command(priv, CMD_802_11_AD_HOC_START,
 166                                     0, CMD_OPTION_WAITFORRSP, 0, assoc_req);
 167
 168         return ret;
 169 }
 170
 171 /**
 172  *  @brief Join an adhoc network found in a previous scan
 173  *
 174  *  @param priv         A pointer to wlan_private structure
 175  *  @param pbssdesc     Pointer to a BSS descriptor found in a previous scan
 176  *                      to attempt to join
 177  *
 178  *  @return             0--success, -1--fail
 179  */
 180 int libertas_join_adhoc_network(wlan_private * priv, struct assoc_request * assoc_req)
 181 {
 182         wlan_adapter *adapter = priv->adapter;
 183         struct bss_descriptor * bss = &assoc_req->bss;
 184         int ret = 0;
 185
 186         lbs_deb_join("%s: Current SSID '%s', ssid length %u\n",
 187                      __func__,
 188                      escape_essid(adapter->curbssparams.ssid,
 189                                   adapter->curbssparams.ssid_len),
 190                      adapter->curbssparams.ssid_len);
 191         lbs_deb_join("%s: requested ssid '%s', ssid length %u\n",
 192                      __func__, escape_essid(bss->ssid, bss->ssid_len),
 193                      bss->ssid_len);
 194
 195         /* check if the requested SSID is already joined */
 196         if (adapter->curbssparams.ssid_len
 197             && !libertas_ssid_cmp(adapter->curbssparams.ssid,
 198                                   adapter->curbssparams.ssid_len,
 199                                   bss->ssid, bss->ssid_len)
 200             && (adapter->mode == IW_MODE_ADHOC)) {
 201                 lbs_deb_join(
 202                        "ADHOC_J_CMD: New ad-hoc SSID is the same as current, "
 203                        "not attempting to re-join");
 204                 return -1;
 205         }
 206
 207         /* Use shortpreamble only when both creator and card supports
 208            short preamble */
 209         if (   !(bss->capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
 210             || !(adapter->capability & WLAN_CAPABILITY_SHORT_PREAMBLE)) {
 211                 lbs_deb_join("AdhocJoin: Long preamble\n");
 212                 adapter->preamble = CMD_TYPE_LONG_PREAMBLE;
 213         } else {
 214                 lbs_deb_join("AdhocJoin: Short preamble\n");
 215                 adapter->preamble = CMD_TYPE_SHORT_PREAMBLE;
 216         }
 217
 218         libertas_set_radio_control(priv);
 219
 220         lbs_deb_join("AdhocJoin: channel = %d\n", assoc_req->channel);
 221         lbs_deb_join("AdhocJoin: band = %c\n", assoc_req->band);
 222
 223         adapter->adhoccreate = 0;
 224
 225         ret = libertas_prepare_and_send_command(priv, CMD_802_11_AD_HOC_JOIN,
 226                                     0, CMD_OPTION_WAITFORRSP,
 227                                     OID_802_11_SSID, assoc_req);
 228
 229         return ret;
 230 }
 231
 232 int libertas_stop_adhoc_network(wlan_private * priv)
 233 {
 234         return libertas_prepare_and_send_command(priv, CMD_802_11_AD_HOC_STOP,
 235                                      0, CMD_OPTION_WAITFORRSP, 0, NULL);
 236 }
 237
 238 /**
 239  *  @brief Send Deauthentication Request
 240  *
 241  *  @param priv      A pointer to wlan_private structure
 242  *  @return          0--success, -1--fail
 243  */
 244 int libertas_send_deauthentication(wlan_private * priv)
 245 {
 246         return libertas_prepare_and_send_command(priv, CMD_802_11_DEAUTHENTICATE,
 247                                      0, CMD_OPTION_WAITFORRSP, 0, NULL);
 248 }
 249
 250 /**
 251  *  @brief This function prepares command of authenticate.
 252  *
 253  *  @param priv      A pointer to wlan_private structure
 254  *  @param cmd       A pointer to cmd_ds_command structure
 255  *  @param pdata_buf Void cast of pointer to a BSSID to authenticate with
 256  *
 257  *  @return         0 or -1
 258  */
 259 int libertas_cmd_80211_authenticate(wlan_private * priv,
 260                                  struct cmd_ds_command *cmd,
 261                                  void *pdata_buf)
 262 {
 263         wlan_adapter *adapter = priv->adapter;
 264         struct cmd_ds_802_11_authenticate *pauthenticate = &cmd->params.auth;
 265         int ret = -1;
 266         u8 *bssid = pdata_buf;
 267
 268         lbs_deb_enter(LBS_DEB_JOIN);
 269
 270         cmd->command = cpu_to_le16(CMD_802_11_AUTHENTICATE);
 271         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_authenticate)
 272                                 + S_DS_GEN);
 273
 274         /* translate auth mode to 802.11 defined wire value */
 275         switch (adapter->secinfo.auth_mode) {
 276         case IW_AUTH_ALG_OPEN_SYSTEM:
 277                 pauthenticate->authtype = 0x00;
 278                 break;
 279         case IW_AUTH_ALG_SHARED_KEY:
 280                 pauthenticate->authtype = 0x01;
 281                 break;
 282         case IW_AUTH_ALG_LEAP:
 283                 pauthenticate->authtype = 0x80;
 284                 break;
 285         default:
 286                 lbs_deb_join("AUTH_CMD: invalid auth alg 0x%X\n",
 287                              adapter->secinfo.auth_mode);
 288                 goto out;
 289         }
 290
 291         memcpy(pauthenticate->macaddr, bssid, ETH_ALEN);
 292
 293         lbs_deb_join("AUTH_CMD: BSSID is : " MAC_FMT " auth=0x%X\n",
 294                      MAC_ARG(bssid), pauthenticate->authtype);
 295         ret = 0;
 296
 297 out:
 298         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 299         return ret;
 300 }
 301
 302 int libertas_cmd_80211_deauthenticate(wlan_private * priv,
 303                                    struct cmd_ds_command *cmd)
 304 {
 305         wlan_adapter *adapter = priv->adapter;
 306         struct cmd_ds_802_11_deauthenticate *dauth = &cmd->params.deauth;
 307
 308         lbs_deb_enter(LBS_DEB_JOIN);
 309
 310         cmd->command = cpu_to_le16(CMD_802_11_DEAUTHENTICATE);
 311         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_deauthenticate) +
 312                              S_DS_GEN);
 313
 314         /* set AP MAC address */
 315         memmove(dauth->macaddr, adapter->curbssparams.bssid, ETH_ALEN);
 316
 317         /* Reason code 3 = Station is leaving */
 318 #define REASON_CODE_STA_LEAVING 3
 319         dauth->reasoncode = cpu_to_le16(REASON_CODE_STA_LEAVING);
 320
 321         lbs_deb_leave(LBS_DEB_JOIN);
 322         return 0;
 323 }
 324
 325 int libertas_cmd_80211_associate(wlan_private * priv,
 326                               struct cmd_ds_command *cmd, void *pdata_buf)
 327 {
 328         wlan_adapter *adapter = priv->adapter;
 329         struct cmd_ds_802_11_associate *passo = &cmd->params.associate;
 330         int ret = 0;
 331         struct assoc_request * assoc_req = pdata_buf;
 332         struct bss_descriptor * bss = &assoc_req->bss;
 333         u8 *card_rates;
 334         u8 *pos;
 335         int card_rates_size;
 336         u16 tmpcap, tmplen;
 337         struct mrvlietypes_ssidparamset *ssid;
 338         struct mrvlietypes_phyparamset *phy;
 339         struct mrvlietypes_ssparamset *ss;
 340         struct mrvlietypes_ratesparamset *rates;
 341         struct mrvlietypes_rsnparamset *rsn;
 342
 343         lbs_deb_enter(LBS_DEB_JOIN);
 344
 345         pos = (u8 *) passo;
 346
 347         if (!adapter) {
 348                 ret = -1;
 349                 goto done;
 350         }
 351
 352         cmd->command = cpu_to_le16(CMD_802_11_ASSOCIATE);
 353
 354         memcpy(passo->peerstaaddr, bss->bssid, sizeof(passo->peerstaaddr));
 355         pos += sizeof(passo->peerstaaddr);
 356
 357         /* set the listen interval */
 358         passo->listeninterval = cpu_to_le16(adapter->listeninterval);
 359
 360         pos += sizeof(passo->capability);
 361         pos += sizeof(passo->listeninterval);
 362         pos += sizeof(passo->bcnperiod);
 363         pos += sizeof(passo->dtimperiod);
 364
 365         ssid = (struct mrvlietypes_ssidparamset *) pos;
 366         ssid->header.type = cpu_to_le16(TLV_TYPE_SSID);
 367         tmplen = bss->ssid_len;
 368         ssid->header.len = cpu_to_le16(tmplen);
 369         memcpy(ssid->ssid, bss->ssid, tmplen);
 370         pos += sizeof(ssid->header) + tmplen;
 371
 372         phy = (struct mrvlietypes_phyparamset *) pos;
 373         phy->header.type = cpu_to_le16(TLV_TYPE_PHY_DS);
 374         tmplen = sizeof(phy->fh_ds.dsparamset);
 375         phy->header.len = cpu_to_le16(tmplen);
 376         memcpy(&phy->fh_ds.dsparamset,
 377                &bss->phyparamset.dsparamset.currentchan,
 378                tmplen);
 379         pos += sizeof(phy->header) + tmplen;
 380
 381         ss = (struct mrvlietypes_ssparamset *) pos;
 382         ss->header.type = cpu_to_le16(TLV_TYPE_CF);
 383         tmplen = sizeof(ss->cf_ibss.cfparamset);
 384         ss->header.len = cpu_to_le16(tmplen);
 385         pos += sizeof(ss->header) + tmplen;
 386
 387         rates = (struct mrvlietypes_ratesparamset *) pos;
 388         rates->header.type = cpu_to_le16(TLV_TYPE_RATES);
 389
 390         memcpy(&rates->rates, &bss->libertas_supported_rates, WLAN_SUPPORTED_RATES);
 391
 392         card_rates = libertas_supported_rates;
 393         card_rates_size = sizeof(libertas_supported_rates);
 394
 395         if (get_common_rates(adapter, rates->rates, WLAN_SUPPORTED_RATES,
 396                              card_rates, card_rates_size)) {
 397                 ret = -1;
 398                 goto done;
 399         }
 400
 401         tmplen = min_t(size_t, strlen(rates->rates), WLAN_SUPPORTED_RATES);
 402         adapter->curbssparams.numofrates = tmplen;
 403
 404         pos += sizeof(rates->header) + tmplen;
 405         rates->header.len = cpu_to_le16(tmplen);
 406
 407         if (assoc_req->secinfo.WPAenabled || assoc_req->secinfo.WPA2enabled) {
 408                 rsn = (struct mrvlietypes_rsnparamset *) pos;
 409                 /* WPA_IE or WPA2_IE */
 410                 rsn->header.type = cpu_to_le16((u16) assoc_req->wpa_ie[0]);
 411                 tmplen = (u16) assoc_req->wpa_ie[1];
 412                 rsn->header.len = cpu_to_le16(tmplen);
 413                 memcpy(rsn->rsnie, &assoc_req->wpa_ie[2], tmplen);
 414                 lbs_dbg_hex("ASSOC_CMD: RSN IE", (u8 *) rsn,
 415                         sizeof(rsn->header) + tmplen);
 416                 pos += sizeof(rsn->header) + tmplen;
 417         }
 418
 419         /* update curbssparams */
 420         adapter->curbssparams.channel = bss->phyparamset.dsparamset.currentchan;
 421
 422         /* Copy the infra. association rates into Current BSS state structure */
 423         memcpy(&adapter->curbssparams.datarates, &rates->rates,
 424                min_t(size_t, sizeof(adapter->curbssparams.datarates),
 425                      cpu_to_le16(rates->header.len)));
 426
 427         lbs_deb_join("ASSOC_CMD: rates->header.len = %d\n",
 428                      cpu_to_le16(rates->header.len));
 429
 430         if (libertas_parse_dnld_countryinfo_11d(priv, bss)) {
 431                 ret = -1;
 432                 goto done;
 433         }
 434
 435         cmd->size = cpu_to_le16((u16) (pos - (u8 *) passo) + S_DS_GEN);
 436
 437         /* set the capability info */
 438         tmpcap = (bss->capability & CAPINFO_MASK);
 439         if (bss->mode == IW_MODE_INFRA)
 440                 tmpcap |= WLAN_CAPABILITY_ESS;
 441         passo->capability = cpu_to_le16(tmpcap);
 442         lbs_deb_join("ASSOC_CMD: capability=%4X CAPINFO_MASK=%4X\n",
 443                      tmpcap, CAPINFO_MASK);
 444
 445 done:
 446         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 447         return ret;
 448 }
 449
 450 int libertas_cmd_80211_ad_hoc_start(wlan_private * priv,
 451                                  struct cmd_ds_command *cmd, void *pdata_buf)
 452 {
 453         wlan_adapter *adapter = priv->adapter;
 454         struct cmd_ds_802_11_ad_hoc_start *adhs = &cmd->params.ads;
 455         int ret = 0;
 456         int cmdappendsize = 0;
 457         int i;
 458         struct assoc_request * assoc_req = pdata_buf;
 459         u16 tmpcap = 0;
 460
 461         lbs_deb_enter(LBS_DEB_JOIN);
 462
 463         if (!adapter) {
 464                 ret = -1;
 465                 goto done;
 466         }
 467
 468         cmd->command = cpu_to_le16(CMD_802_11_AD_HOC_START);
 469
 470         /*
 471          * Fill in the parameters for 2 data structures:
 472          *   1. cmd_ds_802_11_ad_hoc_start command
 473          *   2. adapter->scantable[i]
 474          *
 475          * Driver will fill up SSID, bsstype,IBSS param, Physical Param,
 476          *   probe delay, and cap info.
 477          *
 478          * Firmware will fill up beacon period, DTIM, Basic rates
 479          *   and operational rates.
 480          */
 481
 482         memset(adhs->ssid, 0, IW_ESSID_MAX_SIZE);
 483         memcpy(adhs->ssid, assoc_req->ssid, assoc_req->ssid_len);
 484
 485         lbs_deb_join("ADHOC_S_CMD: SSID '%s', ssid length %u\n",
 486                      escape_essid(assoc_req->ssid, assoc_req->ssid_len),
 487                      assoc_req->ssid_len);
 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         tmpcap = WLAN_CAPABILITY_IBSS;
 518         if (assoc_req->secinfo.wep_enabled) {
 519                 lbs_deb_join("ADHOC_S_CMD: WEP enabled, setting privacy on\n");
 520                 tmpcap |= WLAN_CAPABILITY_PRIVACY;
 521         } else {
 522                 lbs_deb_join("ADHOC_S_CMD: WEP disabled, setting privacy off\n");
 523         }
 524         adhs->capability = cpu_to_le16(tmpcap);
 525
 526         /* probedelay */
 527         adhs->probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME);
 528
 529         memset(adhs->datarate, 0, sizeof(adhs->datarate));
 530
 531         if (adapter->adhoc_grate_enabled) {
 532                 memcpy(adhs->datarate, libertas_adhoc_rates_g,
 533                        min(sizeof(adhs->datarate), sizeof(libertas_adhoc_rates_g)));
 534         } else {
 535                 memcpy(adhs->datarate, libertas_adhoc_rates_b,
 536                        min(sizeof(adhs->datarate), sizeof(libertas_adhoc_rates_b)));
 537         }
 538
 539         /* Find the last non zero */
 540         for (i = 0; i < sizeof(adhs->datarate) && adhs->datarate[i]; i++) ;
 541
 542         adapter->curbssparams.numofrates = i;
 543
 544         /* Copy the ad-hoc creating rates into Current BSS state structure */
 545         memcpy(&adapter->curbssparams.datarates,
 546                &adhs->datarate, adapter->curbssparams.numofrates);
 547
 548         lbs_deb_join("ADHOC_S_CMD: rates=%02x %02x %02x %02x \n",
 549                adhs->datarate[0], adhs->datarate[1],
 550                adhs->datarate[2], adhs->datarate[3]);
 551
 552         lbs_deb_join("ADHOC_S_CMD: AD HOC Start command is ready\n");
 553
 554         if (libertas_create_dnld_countryinfo_11d(priv)) {
 555                 lbs_deb_join("ADHOC_S_CMD: dnld_countryinfo_11d failed\n");
 556                 ret = -1;
 557                 goto done;
 558         }
 559
 560         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_ad_hoc_start) +
 561                                 S_DS_GEN + cmdappendsize);
 562
 563         ret = 0;
 564 done:
 565         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 566         return ret;
 567 }
 568
 569 int libertas_cmd_80211_ad_hoc_stop(wlan_private * priv,
 570                                 struct cmd_ds_command *cmd)
 571 {
 572         cmd->command = cpu_to_le16(CMD_802_11_AD_HOC_STOP);
 573         cmd->size = cpu_to_le16(S_DS_GEN);
 574
 575         return 0;
 576 }
 577
 578 int libertas_cmd_80211_ad_hoc_join(wlan_private * priv,
 579                                 struct cmd_ds_command *cmd, void *pdata_buf)
 580 {
 581         wlan_adapter *adapter = priv->adapter;
 582         struct cmd_ds_802_11_ad_hoc_join *join_cmd = &cmd->params.adj;
 583         struct assoc_request * assoc_req = pdata_buf;
 584         struct bss_descriptor *bss = &assoc_req->bss;
 585         int cmdappendsize = 0;
 586         int ret = 0;
 587         u8 *card_rates;
 588         int card_rates_size;
 589         int i;
 590
 591         lbs_deb_enter(LBS_DEB_JOIN);
 592
 593         cmd->command = cpu_to_le16(CMD_802_11_AD_HOC_JOIN);
 594
 595         join_cmd->bss.type = CMD_BSS_TYPE_IBSS;
 596         join_cmd->bss.beaconperiod = cpu_to_le16(bss->beaconperiod);
 597
 598         memcpy(&join_cmd->bss.bssid, &bss->bssid, ETH_ALEN);
 599         memcpy(&join_cmd->bss.ssid, &bss->ssid, bss->ssid_len);
 600
 601         memcpy(&join_cmd->bss.phyparamset, &bss->phyparamset,
 602                sizeof(union ieeetypes_phyparamset));
 603
 604         memcpy(&join_cmd->bss.ssparamset, &bss->ssparamset,
 605                sizeof(union IEEEtypes_ssparamset));
 606
 607         join_cmd->bss.capability = cpu_to_le16(bss->capability & CAPINFO_MASK);
 608         lbs_deb_join("ADHOC_J_CMD: tmpcap=%4X CAPINFO_MASK=%4X\n",
 609                bss->capability, CAPINFO_MASK);
 610
 611         /* information on BSSID descriptor passed to FW */
 612         lbs_deb_join(
 613                "ADHOC_J_CMD: BSSID = " MAC_FMT ", SSID = '%s'\n",
 614                MAC_ARG(join_cmd->bss.bssid), join_cmd->bss.ssid);
 615
 616         /* failtimeout */
 617         join_cmd->failtimeout = cpu_to_le16(MRVDRV_ASSOCIATION_TIME_OUT);
 618
 619         /* probedelay */
 620         join_cmd->probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME);
 621
 622         /* Copy Data rates from the rates recorded in scan response */
 623         memset(join_cmd->bss.datarates, 0, sizeof(join_cmd->bss.datarates));
 624         memcpy(join_cmd->bss.datarates, bss->datarates,
 625                min(sizeof(join_cmd->bss.datarates), sizeof(bss->datarates)));
 626
 627         card_rates = libertas_supported_rates;
 628         card_rates_size = sizeof(libertas_supported_rates);
 629
 630         adapter->curbssparams.channel = bss->channel;
 631
 632         if (get_common_rates(adapter, join_cmd->bss.datarates,
 633                              sizeof(join_cmd->bss.datarates),
 634                              card_rates, card_rates_size)) {
 635                 lbs_deb_join("ADHOC_J_CMD: get_common_rates returns error.\n");
 636                 ret = -1;
 637                 goto done;
 638         }
 639
 640         /* Find the last non zero */
 641         for (i = 0; i < sizeof(join_cmd->bss.datarates)
 642              && join_cmd->bss.datarates[i]; i++) ;
 643
 644         adapter->curbssparams.numofrates = i;
 645
 646         /*
 647          * Copy the adhoc joining rates to Current BSS State structure
 648          */
 649         memcpy(adapter->curbssparams.datarates,
 650                join_cmd->bss.datarates,
 651                adapter->curbssparams.numofrates);
 652
 653         join_cmd->bss.ssparamset.ibssparamset.atimwindow =
 654             cpu_to_le16(bss->atimwindow);
 655
 656         if (assoc_req->secinfo.wep_enabled) {
 657                 u16 tmp = le16_to_cpu(join_cmd->bss.capability);
 658                 tmp |= WLAN_CAPABILITY_PRIVACY;
 659                 join_cmd->bss.capability = cpu_to_le16(tmp);
 660         }
 661
 662         if (adapter->psmode == WLAN802_11POWERMODEMAX_PSP) {
 663                 /* wake up first */
 664                 __le32 Localpsmode;
 665
 666                 Localpsmode = cpu_to_le32(WLAN802_11POWERMODECAM);
 667                 ret = libertas_prepare_and_send_command(priv,
 668                                             CMD_802_11_PS_MODE,
 669                                             CMD_ACT_SET,
 670                                             0, 0, &Localpsmode);
 671
 672                 if (ret) {
 673                         ret = -1;
 674                         goto done;
 675                 }
 676         }
 677
 678         if (libertas_parse_dnld_countryinfo_11d(priv, bss)) {
 679                 ret = -1;
 680                 goto done;
 681         }
 682
 683         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_ad_hoc_join) +
 684                                 S_DS_GEN + cmdappendsize);
 685
 686 done:
 687         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 688         return ret;
 689 }
 690
 691 int libertas_ret_80211_associate(wlan_private * priv,
 692                               struct cmd_ds_command *resp)
 693 {
 694         wlan_adapter *adapter = priv->adapter;
 695         int ret = 0;
 696         union iwreq_data wrqu;
 697         struct ieeetypes_assocrsp *passocrsp;
 698         struct bss_descriptor * bss;
 699
 700         lbs_deb_enter(LBS_DEB_JOIN);
 701
 702         if (!adapter->in_progress_assoc_req) {
 703                 lbs_deb_join("ASSOC_RESP: no in-progress association request\n");
 704                 ret = -1;
 705                 goto done;
 706         }
 707         bss = &adapter->in_progress_assoc_req->bss;
 708
 709         passocrsp = (struct ieeetypes_assocrsp *) & resp->params;
 710
 711         if (le16_to_cpu(passocrsp->statuscode)) {
 712                 libertas_mac_event_disconnected(priv);
 713
 714                 lbs_deb_join("ASSOC_RESP: Association failed, status code = %d\n",
 715                              le16_to_cpu(passocrsp->statuscode));
 716
 717                 ret = -1;
 718                 goto done;
 719         }
 720
 721         lbs_dbg_hex("ASSOC_RESP:", (void *)&resp->params,
 722                 le16_to_cpu(resp->size) - S_DS_GEN);
 723
 724         /* Send a Media Connected event, according to the Spec */
 725         adapter->connect_status = LIBERTAS_CONNECTED;
 726
 727         lbs_deb_join("ASSOC_RESP: assocated to '%s'\n",
 728                      escape_essid(bss->ssid, bss->ssid_len));
 729
 730         /* Update current SSID and BSSID */
 731         memcpy(&adapter->curbssparams.ssid, &bss->ssid, IW_ESSID_MAX_SIZE);
 732         adapter->curbssparams.ssid_len = bss->ssid_len;
 733         memcpy(adapter->curbssparams.bssid, bss->bssid, ETH_ALEN);
 734
 735         lbs_deb_join("ASSOC_RESP: currentpacketfilter is %x\n",
 736                adapter->currentpacketfilter);
 737
 738         adapter->SNR[TYPE_RXPD][TYPE_AVG] = 0;
 739         adapter->NF[TYPE_RXPD][TYPE_AVG] = 0;
 740
 741         memset(adapter->rawSNR, 0x00, sizeof(adapter->rawSNR));
 742         memset(adapter->rawNF, 0x00, sizeof(adapter->rawNF));
 743         adapter->nextSNRNF = 0;
 744         adapter->numSNRNF = 0;
 745
 746         netif_carrier_on(priv->dev);
 747         netif_wake_queue(priv->dev);
 748
 749         netif_carrier_on(priv->mesh_dev);
 750         netif_wake_queue(priv->mesh_dev);
 751
 752         lbs_deb_join("ASSOC_RESP: Associated \n");
 753
 754         memcpy(wrqu.ap_addr.sa_data, adapter->curbssparams.bssid, ETH_ALEN);
 755         wrqu.ap_addr.sa_family = ARPHRD_ETHER;
 756         wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
 757
 758 done:
 759         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 760         return ret;
 761 }
 762
 763 int libertas_ret_80211_disassociate(wlan_private * priv,
 764                                  struct cmd_ds_command *resp)
 765 {
 766         lbs_deb_enter(LBS_DEB_JOIN);
 767
 768         libertas_mac_event_disconnected(priv);
 769
 770         lbs_deb_leave(LBS_DEB_JOIN);
 771         return 0;
 772 }
 773
 774 int libertas_ret_80211_ad_hoc_start(wlan_private * priv,
 775                                  struct cmd_ds_command *resp)
 776 {
 777         wlan_adapter *adapter = priv->adapter;
 778         int ret = 0;
 779         u16 command = le16_to_cpu(resp->command);
 780         u16 result = le16_to_cpu(resp->result);
 781         struct cmd_ds_802_11_ad_hoc_result *padhocresult;
 782         union iwreq_data wrqu;
 783         struct bss_descriptor *bss;
 784
 785         lbs_deb_enter(LBS_DEB_JOIN);
 786
 787         padhocresult = &resp->params.result;
 788
 789         lbs_deb_join("ADHOC_RESP: size = %d\n", le16_to_cpu(resp->size));
 790         lbs_deb_join("ADHOC_RESP: command = %x\n", command);
 791         lbs_deb_join("ADHOC_RESP: result = %x\n", result);
 792
 793         if (!adapter->in_progress_assoc_req) {
 794                 lbs_deb_join("ADHOC_RESP: no in-progress association request\n");
 795                 ret = -1;
 796                 goto done;
 797         }
 798         bss = &adapter->in_progress_assoc_req->bss;
 799
 800         /*
 801          * Join result code 0 --> SUCCESS
 802          */
 803         if (result) {
 804                 lbs_deb_join("ADHOC_RESP: failed\n");
 805                 if (adapter->connect_status == LIBERTAS_CONNECTED) {
 806                         libertas_mac_event_disconnected(priv);
 807                 }
 808                 ret = -1;
 809                 goto done;
 810         }
 811
 812         /*
 813          * Now the join cmd should be successful
 814          * If BSSID has changed use SSID to compare instead of BSSID
 815          */
 816         lbs_deb_join("ADHOC_RESP: associated to '%s'\n",
 817                      escape_essid(bss->ssid, bss->ssid_len));
 818
 819         /* Send a Media Connected event, according to the Spec */
 820         adapter->connect_status = LIBERTAS_CONNECTED;
 821
 822         if (command == CMD_RET_802_11_AD_HOC_START) {
 823                 /* Update the created network descriptor with the new BSSID */
 824                 memcpy(bss->bssid, padhocresult->bssid, ETH_ALEN);
 825         }
 826
 827         /* Set the BSSID from the joined/started descriptor */
 828         memcpy(&adapter->curbssparams.bssid, bss->bssid, ETH_ALEN);
 829
 830         /* Set the new SSID to current SSID */
 831         memcpy(&adapter->curbssparams.ssid, &bss->ssid, IW_ESSID_MAX_SIZE);
 832         adapter->curbssparams.ssid_len = bss->ssid_len;
 833
 834         netif_carrier_on(priv->dev);
 835         netif_wake_queue(priv->dev);
 836
 837         netif_carrier_on(priv->mesh_dev);
 838         netif_wake_queue(priv->mesh_dev);
 839
 840         memset(&wrqu, 0, sizeof(wrqu));
 841         memcpy(wrqu.ap_addr.sa_data, adapter->curbssparams.bssid, ETH_ALEN);
 842         wrqu.ap_addr.sa_family = ARPHRD_ETHER;
 843         wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
 844
 845         lbs_deb_join("ADHOC_RESP: - Joined/Started Ad Hoc\n");
 846         lbs_deb_join("ADHOC_RESP: channel = %d\n", adapter->curbssparams.channel);
 847         lbs_deb_join("ADHOC_RESP: BSSID = " MAC_FMT "\n",
 848                MAC_ARG(padhocresult->BSSID));
 849
 850 done:
 851         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 852         return ret;
 853 }
 854
 855 int libertas_ret_80211_ad_hoc_stop(wlan_private * priv,
 856                                 struct cmd_ds_command *resp)
 857 {
 858         lbs_deb_enter(LBS_DEB_JOIN);
 859
 860         libertas_mac_event_disconnected(priv);
 861
 862         lbs_deb_leave(LBS_DEB_JOIN);
 863         return 0;
 864 }