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("%s: Current SSID '%s', ssid length %u\n",
 188                      __func__,
 189                      escape_essid(adapter->curbssparams.ssid,
 190                                   adapter->curbssparams.ssid_len),
 191                      adapter->curbssparams.ssid_len);
 192         lbs_deb_join("%s: requested ssid '%s', ssid length %u\n",
 193                      __func__, escape_essid(bss->ssid, bss->ssid_len),
 194                      bss->ssid_len);
 195
 196         /* check if the requested SSID is already joined */
 197         if (adapter->curbssparams.ssid_len
 198             && !libertas_ssid_cmp(adapter->curbssparams.ssid,
 199                                   adapter->curbssparams.ssid_len,
 200                                   bss->ssid, bss->ssid_len)
 201             && (adapter->mode == IW_MODE_ADHOC)) {
 202                 lbs_deb_join(
 203                        "ADHOC_J_CMD: New ad-hoc SSID is the same as current, "
 204                        "not attempting to re-join");
 205                 return -1;
 206         }
 207
 208         /*Use shortpreamble only when both creator and card supports
 209            short preamble */
 210         if (!bss->cap.shortpreamble || !adapter->capinfo.shortpreamble) {
 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->capinfo);
 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         /* set IBSS field */
 431         if (bss->mode == IW_MODE_INFRA) {
 432 #define CAPINFO_ESS_MODE 1
 433                 passo->capinfo.ess = CAPINFO_ESS_MODE;
 434         }
 435
 436         if (libertas_parse_dnld_countryinfo_11d(priv, bss)) {
 437                 ret = -1;
 438                 goto done;
 439         }
 440
 441         cmd->size = cpu_to_le16((u16) (pos - (u8 *) passo) + S_DS_GEN);
 442
 443         /* set the capability info at last */
 444         memcpy(&tmpcap, &bss->cap, sizeof(passo->capinfo));
 445         tmpcap &= CAPINFO_MASK;
 446         lbs_deb_join("ASSOC_CMD: tmpcap=%4X CAPINFO_MASK=%4X\n",
 447                      tmpcap, CAPINFO_MASK);
 448         memcpy(&passo->capinfo, &tmpcap, sizeof(passo->capinfo));
 449
 450 done:
 451         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 452         return ret;
 453 }
 454
 455 int libertas_cmd_80211_ad_hoc_start(wlan_private * priv,
 456                                  struct cmd_ds_command *cmd, void *pdata_buf)
 457 {
 458         wlan_adapter *adapter = priv->adapter;
 459         struct cmd_ds_802_11_ad_hoc_start *adhs = &cmd->params.ads;
 460         int ret = 0;
 461         int cmdappendsize = 0;
 462         int i;
 463         struct assoc_request * assoc_req = pdata_buf;
 464
 465         lbs_deb_enter(LBS_DEB_JOIN);
 466
 467         if (!adapter) {
 468                 ret = -1;
 469                 goto done;
 470         }
 471
 472         cmd->command = cpu_to_le16(cmd_802_11_ad_hoc_start);
 473
 474         /*
 475          * Fill in the parameters for 2 data structures:
 476          *   1. cmd_ds_802_11_ad_hoc_start command
 477          *   2. adapter->scantable[i]
 478          *
 479          * Driver will fill up SSID, bsstype,IBSS param, Physical Param,
 480          *   probe delay, and cap info.
 481          *
 482          * Firmware will fill up beacon period, DTIM, Basic rates
 483          *   and operational rates.
 484          */
 485
 486         memset(adhs->SSID, 0, IW_ESSID_MAX_SIZE);
 487         memcpy(adhs->SSID, assoc_req->ssid, assoc_req->ssid_len);
 488
 489         lbs_deb_join("ADHOC_S_CMD: SSID '%s', ssid length %u\n",
 490                      escape_essid(assoc_req->ssid, assoc_req->ssid_len),
 491                      assoc_req->ssid_len);
 492
 493         /* set the BSS type */
 494         adhs->bsstype = cmd_bss_type_ibss;
 495         adapter->mode = IW_MODE_ADHOC;
 496         adhs->beaconperiod = cpu_to_le16(adapter->beaconperiod);
 497
 498         /* set Physical param set */
 499 #define DS_PARA_IE_ID   3
 500 #define DS_PARA_IE_LEN  1
 501
 502         adhs->phyparamset.dsparamset.elementid = DS_PARA_IE_ID;
 503         adhs->phyparamset.dsparamset.len = DS_PARA_IE_LEN;
 504
 505         WARN_ON(!assoc_req->channel);
 506
 507         lbs_deb_join("ADHOC_S_CMD: Creating ADHOC on channel %d\n",
 508                      assoc_req->channel);
 509
 510         adhs->phyparamset.dsparamset.currentchan = assoc_req->channel;
 511
 512         /* set IBSS param set */
 513 #define IBSS_PARA_IE_ID   6
 514 #define IBSS_PARA_IE_LEN  2
 515
 516         adhs->ssparamset.ibssparamset.elementid = IBSS_PARA_IE_ID;
 517         adhs->ssparamset.ibssparamset.len = IBSS_PARA_IE_LEN;
 518         adhs->ssparamset.ibssparamset.atimwindow = cpu_to_le16(adapter->atimwindow);
 519
 520         /* set capability info */
 521         adhs->cap.ess = 0;
 522         adhs->cap.ibss = 1;
 523
 524         /* probedelay */
 525         adhs->probedelay = cpu_to_le16(cmd_scan_probe_delay_time);
 526
 527         /* set up privacy in adapter->scantable[i] */
 528         if (assoc_req->secinfo.wep_enabled) {
 529                 lbs_deb_join("ADHOC_S_CMD: WEP enabled, setting privacy on\n");
 530                 adhs->cap.privacy = AD_HOC_CAP_PRIVACY_ON;
 531         } else {
 532                 lbs_deb_join("ADHOC_S_CMD: WEP disabled, setting privacy off\n");
 533         }
 534
 535         memset(adhs->datarate, 0, sizeof(adhs->datarate));
 536
 537         if (adapter->adhoc_grate_enabled) {
 538                 memcpy(adhs->datarate, libertas_adhoc_rates_g,
 539                        min(sizeof(adhs->datarate), sizeof(libertas_adhoc_rates_g)));
 540         } else {
 541                 memcpy(adhs->datarate, libertas_adhoc_rates_b,
 542                        min(sizeof(adhs->datarate), sizeof(libertas_adhoc_rates_b)));
 543         }
 544
 545         /* Find the last non zero */
 546         for (i = 0; i < sizeof(adhs->datarate) && adhs->datarate[i]; i++) ;
 547
 548         adapter->curbssparams.numofrates = i;
 549
 550         /* Copy the ad-hoc creating rates into Current BSS state structure */
 551         memcpy(&adapter->curbssparams.datarates,
 552                &adhs->datarate, adapter->curbssparams.numofrates);
 553
 554         lbs_deb_join("ADHOC_S_CMD: rates=%02x %02x %02x %02x \n",
 555                adhs->datarate[0], adhs->datarate[1],
 556                adhs->datarate[2], adhs->datarate[3]);
 557
 558         lbs_deb_join("ADHOC_S_CMD: AD HOC Start command is ready\n");
 559
 560         if (libertas_create_dnld_countryinfo_11d(priv)) {
 561                 lbs_deb_join("ADHOC_S_CMD: dnld_countryinfo_11d failed\n");
 562                 ret = -1;
 563                 goto done;
 564         }
 565
 566         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_ad_hoc_start) +
 567                                 S_DS_GEN + cmdappendsize);
 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 = cpu_to_le16(bss->beaconperiod);
 605
 606         memcpy(&padhocjoin->bssdescriptor.BSSID, &bss->bssid, ETH_ALEN);
 607         memcpy(&padhocjoin->bssdescriptor.SSID, &bss->ssid, bss->ssid_len);
 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 = cpu_to_le16(cmd_scan_probe_delay_time);
 634
 635         /* Copy Data rates from the rates recorded in scan response */
 636         memset(padhocjoin->bssdescriptor.datarates, 0,
 637                sizeof(padhocjoin->bssdescriptor.datarates));
 638         memcpy(padhocjoin->bssdescriptor.datarates, bss->datarates,
 639                min(sizeof(padhocjoin->bssdescriptor.datarates),
 640                    sizeof(bss->datarates)));
 641
 642         card_rates = libertas_supported_rates;
 643         card_rates_size = sizeof(libertas_supported_rates);
 644
 645         adapter->curbssparams.channel = bss->channel;
 646
 647         if (get_common_rates(adapter, padhocjoin->bssdescriptor.datarates,
 648                              sizeof(padhocjoin->bssdescriptor.datarates),
 649                              card_rates, card_rates_size)) {
 650                 lbs_deb_join("ADHOC_J_CMD: get_common_rates returns error.\n");
 651                 ret = -1;
 652                 goto done;
 653         }
 654
 655         /* Find the last non zero */
 656         for (i = 0; i < sizeof(padhocjoin->bssdescriptor.datarates)
 657              && padhocjoin->bssdescriptor.datarates[i]; i++) ;
 658
 659         adapter->curbssparams.numofrates = i;
 660
 661         /*
 662          * Copy the adhoc joining rates to Current BSS State structure
 663          */
 664         memcpy(adapter->curbssparams.datarates,
 665                padhocjoin->bssdescriptor.datarates,
 666                adapter->curbssparams.numofrates);
 667
 668         padhocjoin->bssdescriptor.ssparamset.ibssparamset.atimwindow =
 669             cpu_to_le16(bss->atimwindow);
 670
 671         if (assoc_req->secinfo.wep_enabled) {
 672                 padhocjoin->bssdescriptor.cap.privacy = AD_HOC_CAP_PRIVACY_ON;
 673         }
 674
 675         if (adapter->psmode == wlan802_11powermodemax_psp) {
 676                 /* wake up first */
 677                 __le32 Localpsmode;
 678
 679                 Localpsmode = cpu_to_le32(wlan802_11powermodecam);
 680                 ret = libertas_prepare_and_send_command(priv,
 681                                             cmd_802_11_ps_mode,
 682                                             cmd_act_set,
 683                                             0, 0, &Localpsmode);
 684
 685                 if (ret) {
 686                         ret = -1;
 687                         goto done;
 688                 }
 689         }
 690
 691         if (libertas_parse_dnld_countryinfo_11d(priv, bss)) {
 692                 ret = -1;
 693                 goto done;
 694         }
 695
 696         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_ad_hoc_join) +
 697                                 S_DS_GEN + cmdappendsize);
 698
 699 done:
 700         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 701         return ret;
 702 }
 703
 704 int libertas_ret_80211_associate(wlan_private * priv,
 705                               struct cmd_ds_command *resp)
 706 {
 707         wlan_adapter *adapter = priv->adapter;
 708         int ret = 0;
 709         union iwreq_data wrqu;
 710         struct ieeetypes_assocrsp *passocrsp;
 711         struct bss_descriptor * bss;
 712
 713         lbs_deb_enter(LBS_DEB_JOIN);
 714
 715         if (!adapter->in_progress_assoc_req) {
 716                 lbs_deb_join("ASSOC_RESP: no in-progress association request\n");
 717                 ret = -1;
 718                 goto done;
 719         }
 720         bss = &adapter->in_progress_assoc_req->bss;
 721
 722         passocrsp = (struct ieeetypes_assocrsp *) & resp->params;
 723
 724         if (le16_to_cpu(passocrsp->statuscode)) {
 725                 libertas_mac_event_disconnected(priv);
 726
 727                 lbs_deb_join("ASSOC_RESP: Association failed, status code = %d\n",
 728                              le16_to_cpu(passocrsp->statuscode));
 729
 730                 ret = -1;
 731                 goto done;
 732         }
 733
 734         lbs_dbg_hex("ASSOC_RESP:", (void *)&resp->params,
 735                 le16_to_cpu(resp->size) - S_DS_GEN);
 736
 737         /* Send a Media Connected event, according to the Spec */
 738         adapter->connect_status = libertas_connected;
 739
 740         lbs_deb_join("ASSOC_RESP: assocated to '%s'\n",
 741                      escape_essid(bss->ssid, bss->ssid_len));
 742
 743         /* Update current SSID and BSSID */
 744         memcpy(&adapter->curbssparams.ssid, &bss->ssid, IW_ESSID_MAX_SIZE);
 745         adapter->curbssparams.ssid_len = bss->ssid_len;
 746         memcpy(adapter->curbssparams.bssid, bss->bssid, ETH_ALEN);
 747
 748         lbs_deb_join("ASSOC_RESP: currentpacketfilter is %x\n",
 749                adapter->currentpacketfilter);
 750
 751         adapter->SNR[TYPE_RXPD][TYPE_AVG] = 0;
 752         adapter->NF[TYPE_RXPD][TYPE_AVG] = 0;
 753
 754         memset(adapter->rawSNR, 0x00, sizeof(adapter->rawSNR));
 755         memset(adapter->rawNF, 0x00, sizeof(adapter->rawNF));
 756         adapter->nextSNRNF = 0;
 757         adapter->numSNRNF = 0;
 758
 759         netif_carrier_on(priv->dev);
 760         netif_wake_queue(priv->dev);
 761
 762         netif_carrier_on(priv->mesh_dev);
 763         netif_wake_queue(priv->mesh_dev);
 764
 765         lbs_deb_join("ASSOC_RESP: Associated \n");
 766
 767         memcpy(wrqu.ap_addr.sa_data, adapter->curbssparams.bssid, ETH_ALEN);
 768         wrqu.ap_addr.sa_family = ARPHRD_ETHER;
 769         wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
 770
 771 done:
 772         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 773         return ret;
 774 }
 775
 776 int libertas_ret_80211_disassociate(wlan_private * priv,
 777                                  struct cmd_ds_command *resp)
 778 {
 779         lbs_deb_enter(LBS_DEB_JOIN);
 780
 781         libertas_mac_event_disconnected(priv);
 782
 783         lbs_deb_leave(LBS_DEB_JOIN);
 784         return 0;
 785 }
 786
 787 int libertas_ret_80211_ad_hoc_start(wlan_private * priv,
 788                                  struct cmd_ds_command *resp)
 789 {
 790         wlan_adapter *adapter = priv->adapter;
 791         int ret = 0;
 792         u16 command = le16_to_cpu(resp->command);
 793         u16 result = le16_to_cpu(resp->result);
 794         struct cmd_ds_802_11_ad_hoc_result *padhocresult;
 795         union iwreq_data wrqu;
 796         struct bss_descriptor *bss;
 797
 798         lbs_deb_enter(LBS_DEB_JOIN);
 799
 800         padhocresult = &resp->params.result;
 801
 802         lbs_deb_join("ADHOC_RESP: size = %d\n", le16_to_cpu(resp->size));
 803         lbs_deb_join("ADHOC_RESP: command = %x\n", command);
 804         lbs_deb_join("ADHOC_RESP: result = %x\n", result);
 805
 806         if (!adapter->in_progress_assoc_req) {
 807                 lbs_deb_join("ADHOC_RESP: no in-progress association request\n");
 808                 ret = -1;
 809                 goto done;
 810         }
 811         bss = &adapter->in_progress_assoc_req->bss;
 812
 813         /*
 814          * Join result code 0 --> SUCCESS
 815          */
 816         if (result) {
 817                 lbs_deb_join("ADHOC_RESP: failed\n");
 818                 if (adapter->connect_status == libertas_connected) {
 819                         libertas_mac_event_disconnected(priv);
 820                 }
 821                 ret = -1;
 822                 goto done;
 823         }
 824
 825         /*
 826          * Now the join cmd should be successful
 827          * If BSSID has changed use SSID to compare instead of BSSID
 828          */
 829         lbs_deb_join("ADHOC_RESP: associated to '%s'\n",
 830                      escape_essid(bss->ssid, bss->ssid_len));
 831
 832         /* Send a Media Connected event, according to the Spec */
 833         adapter->connect_status = libertas_connected;
 834
 835         if (command == cmd_ret_802_11_ad_hoc_start) {
 836                 /* Update the created network descriptor with the new BSSID */
 837                 memcpy(bss->bssid, padhocresult->BSSID, ETH_ALEN);
 838         }
 839
 840         /* Set the BSSID from the joined/started descriptor */
 841         memcpy(&adapter->curbssparams.bssid, bss->bssid, ETH_ALEN);
 842
 843         /* Set the new SSID to current SSID */
 844         memcpy(&adapter->curbssparams.ssid, &bss->ssid, IW_ESSID_MAX_SIZE);
 845         adapter->curbssparams.ssid_len = bss->ssid_len;
 846
 847         netif_carrier_on(priv->dev);
 848         netif_wake_queue(priv->dev);
 849
 850         netif_carrier_on(priv->mesh_dev);
 851         netif_wake_queue(priv->mesh_dev);
 852
 853         memset(&wrqu, 0, sizeof(wrqu));
 854         memcpy(wrqu.ap_addr.sa_data, adapter->curbssparams.bssid, ETH_ALEN);
 855         wrqu.ap_addr.sa_family = ARPHRD_ETHER;
 856         wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
 857
 858         lbs_deb_join("ADHOC_RESP: - Joined/Started Ad Hoc\n");
 859         lbs_deb_join("ADHOC_RESP: channel = %d\n", adapter->curbssparams.channel);
 860         lbs_deb_join("ADHOC_RESP: BSSID = " MAC_FMT "\n",
 861                MAC_ARG(padhocresult->BSSID));
 862
 863 done:
 864         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 865         return ret;
 866 }
 867
 868 int libertas_ret_80211_ad_hoc_stop(wlan_private * priv,
 869                                 struct cmd_ds_command *resp)
 870 {
 871         lbs_deb_enter(LBS_DEB_JOIN);
 872
 873         libertas_mac_event_disconnected(priv);
 874
 875         lbs_deb_leave(LBS_DEB_JOIN);
 876         return 0;
 877 }