package/libertas/src/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 /* The firmware needs certain bits masked out of the beacon-derviced capability
  21  * field when associating/joining to BSSs.
  22  */
  23 #define CAPINFO_MASK    (~(0xda00))
  24
  25 /**
  26  *  @brief This function finds common rates between rate1 and card rates.
  27  *
  28  * It will fill common rates in rate1 as output if found.
  29  *
  30  * NOTE: Setting the MSB of the basic rates need to be taken
  31  *   care, either before or after calling this function
  32  *
  33  *  @param priv     A pointer to struct lbs_private structure
  34  *  @param rate1       the buffer which keeps input and output
  35  *  @param rate1_size  the size of rate1 buffer; new size of buffer on return
  36  *
  37  *  @return            0 or -1
  38  */
  39 static int get_common_rates(struct lbs_private *priv,
  40         u8 *rates,
  41         u16 *rates_size)
  42 {
  43         u8 *card_rates = lbs_bg_rates;
  44         size_t num_card_rates = sizeof(lbs_bg_rates);
  45         int ret = 0, i, j;
  46         u8 tmp[30];
  47         size_t tmp_size = 0;
  48
  49         /* For each rate in card_rates that exists in rate1, copy to tmp */
  50         for (i = 0; card_rates[i] && (i < num_card_rates); i++) {
  51                 for (j = 0; rates[j] && (j < *rates_size); j++) {
  52                         if (rates[j] == card_rates[i])
  53                                 tmp[tmp_size++] = card_rates[i];
  54                 }
  55         }
  56
  57         lbs_deb_hex(LBS_DEB_JOIN, "AP rates    ", rates, *rates_size);
  58         lbs_deb_hex(LBS_DEB_JOIN, "card rates  ", card_rates, num_card_rates);
  59         lbs_deb_hex(LBS_DEB_JOIN, "common rates", tmp, tmp_size);
  60         lbs_deb_join("TX data rate 0x%02x\n", priv->cur_rate);
  61
  62         if (!priv->auto_rate) {
  63                 for (i = 0; i < tmp_size; i++) {
  64                         if (tmp[i] == priv->cur_rate)
  65                                 goto done;
  66                 }
  67                 lbs_pr_alert("Previously set fixed data rate %#x isn't "
  68                        "compatible with the network.\n", priv->cur_rate);
  69                 ret = -1;
  70                 goto done;
  71         }
  72         ret = 0;
  73
  74 done:
  75         memset(rates, 0, *rates_size);
  76         *rates_size = min_t(int, tmp_size, *rates_size);
  77         memcpy(rates, tmp, *rates_size);
  78         return ret;
  79 }
  80
  81
  82 /**
  83  *  @brief Sets the MSB on basic rates as the firmware requires
  84  *
  85  * Scan through an array and set the MSB for basic data rates.
  86  *
  87  *  @param rates     buffer of data rates
  88  *  @param len       size of buffer
  89  */
  90 static void lbs_set_basic_rate_flags(u8 *rates, size_t len)
  91 {
  92         int i;
  93
  94         for (i = 0; i < len; i++) {
  95                 if (rates[i] == 0x02 || rates[i] == 0x04 ||
  96                     rates[i] == 0x0b || rates[i] == 0x16)
  97                         rates[i] |= 0x80;
  98         }
  99 }
 100
 101 /**
 102  *  @brief Unsets the MSB on basic rates
 103  *
 104  * Scan through an array and unset the MSB for basic data rates.
 105  *
 106  *  @param rates     buffer of data rates
 107  *  @param len       size of buffer
 108  */
 109 void lbs_unset_basic_rate_flags(u8 *rates, size_t len)
 110 {
 111         int i;
 112
 113         for (i = 0; i < len; i++)
 114                 rates[i] &= 0x7f;
 115 }
 116
 117
 118 /**
 119  *  @brief Associate to a specific BSS discovered in a scan
 120  *
 121  *  @param priv      A pointer to struct lbs_private structure
 122  *  @param pbssdesc  Pointer to the BSS descriptor to associate with.
 123  *
 124  *  @return          0-success, otherwise fail
 125  */
 126 int lbs_associate(struct lbs_private *priv, struct assoc_request *assoc_req)
 127 {
 128         int ret;
 129
 130         lbs_deb_enter(LBS_DEB_ASSOC);
 131
 132         ret = lbs_prepare_and_send_command(priv, CMD_802_11_AUTHENTICATE,
 133                                     0, CMD_OPTION_WAITFORRSP,
 134                                     0, assoc_req->bss.bssid);
 135
 136         if (ret)
 137                 goto done;
 138
 139         /* set preamble to firmware */
 140         if (   (priv->capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
 141             && (assoc_req->bss.capability & WLAN_CAPABILITY_SHORT_PREAMBLE))
 142                 priv->preamble = CMD_TYPE_SHORT_PREAMBLE;
 143         else
 144                 priv->preamble = CMD_TYPE_LONG_PREAMBLE;
 145
 146         lbs_set_radio_control(priv);
 147
 148         ret = lbs_prepare_and_send_command(priv, CMD_802_11_ASSOCIATE,
 149                                     0, CMD_OPTION_WAITFORRSP, 0, assoc_req);
 150
 151 done:
 152         lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
 153         return ret;
 154 }
 155
 156 /**
 157  *  @brief Start an Adhoc Network
 158  *
 159  *  @param priv         A pointer to struct lbs_private structure
 160  *  @param adhocssid    The ssid of the Adhoc Network
 161  *  @return             0--success, -1--fail
 162  */
 163 int lbs_start_adhoc_network(struct lbs_private *priv,
 164         struct assoc_request *assoc_req)
 165 {
 166         int ret = 0;
 167
 168         priv->adhoccreate = 1;
 169
 170         if (priv->capability & WLAN_CAPABILITY_SHORT_PREAMBLE) {
 171                 lbs_deb_join("AdhocStart: Short preamble\n");
 172                 priv->preamble = CMD_TYPE_SHORT_PREAMBLE;
 173         } else {
 174                 lbs_deb_join("AdhocStart: Long preamble\n");
 175                 priv->preamble = CMD_TYPE_LONG_PREAMBLE;
 176         }
 177
 178         lbs_set_radio_control(priv);
 179
 180         lbs_deb_join("AdhocStart: channel = %d\n", assoc_req->channel);
 181         lbs_deb_join("AdhocStart: band = %d\n", assoc_req->band);
 182
 183         ret = lbs_prepare_and_send_command(priv, CMD_802_11_AD_HOC_START,
 184                                     0, CMD_OPTION_WAITFORRSP, 0, assoc_req);
 185
 186         return ret;
 187 }
 188
 189 /**
 190  *  @brief Join an adhoc network found in a previous scan
 191  *
 192  *  @param priv         A pointer to struct lbs_private structure
 193  *  @param pbssdesc     Pointer to a BSS descriptor found in a previous scan
 194  *                      to attempt to join
 195  *
 196  *  @return             0--success, -1--fail
 197  */
 198 int lbs_join_adhoc_network(struct lbs_private *priv,
 199         struct assoc_request *assoc_req)
 200 {
 201         struct bss_descriptor * bss = &assoc_req->bss;
 202         int ret = 0;
 203
 204         lbs_deb_join("%s: Current SSID '%s', ssid length %u\n",
 205                      __func__,
 206                      escape_essid(priv->curbssparams.ssid,
 207                                   priv->curbssparams.ssid_len),
 208                      priv->curbssparams.ssid_len);
 209         lbs_deb_join("%s: requested ssid '%s', ssid length %u\n",
 210                      __func__, escape_essid(bss->ssid, bss->ssid_len),
 211                      bss->ssid_len);
 212
 213         /* check if the requested SSID is already joined */
 214         if (   priv->curbssparams.ssid_len
 215             && !lbs_ssid_cmp(priv->curbssparams.ssid,
 216                                   priv->curbssparams.ssid_len,
 217                                   bss->ssid, bss->ssid_len)
 218             && (priv->mode == IW_MODE_ADHOC)
 219             && (priv->connect_status == LBS_CONNECTED)) {
 220                 union iwreq_data wrqu;
 221
 222                 lbs_deb_join("ADHOC_J_CMD: New ad-hoc SSID is the same as "
 223                              "current, not attempting to re-join");
 224
 225                 /* Send the re-association event though, because the association
 226                  * request really was successful, even if just a null-op.
 227                  */
 228                 memset(&wrqu, 0, sizeof(wrqu));
 229                 memcpy(wrqu.ap_addr.sa_data, priv->curbssparams.bssid,
 230                        ETH_ALEN);
 231                 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
 232                 wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
 233                 goto out;
 234         }
 235
 236         /* Use shortpreamble only when both creator and card supports
 237            short preamble */
 238         if (   !(bss->capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
 239             || !(priv->capability & WLAN_CAPABILITY_SHORT_PREAMBLE)) {
 240                 lbs_deb_join("AdhocJoin: Long preamble\n");
 241                 priv->preamble = CMD_TYPE_LONG_PREAMBLE;
 242         } else {
 243                 lbs_deb_join("AdhocJoin: Short preamble\n");
 244                 priv->preamble = CMD_TYPE_SHORT_PREAMBLE;
 245         }
 246
 247         lbs_set_radio_control(priv);
 248
 249         lbs_deb_join("AdhocJoin: channel = %d\n", assoc_req->channel);
 250         lbs_deb_join("AdhocJoin: band = %c\n", assoc_req->band);
 251
 252         priv->adhoccreate = 0;
 253
 254         ret = lbs_prepare_and_send_command(priv, CMD_802_11_AD_HOC_JOIN,
 255                                     0, CMD_OPTION_WAITFORRSP,
 256                                     OID_802_11_SSID, assoc_req);
 257
 258 out:
 259         return ret;
 260 }
 261
 262 int lbs_stop_adhoc_network(struct lbs_private *priv)
 263 {
 264         return lbs_prepare_and_send_command(priv, CMD_802_11_AD_HOC_STOP,
 265                                      0, CMD_OPTION_WAITFORRSP, 0, NULL);
 266 }
 267
 268 /**
 269  *  @brief Send Deauthentication Request
 270  *
 271  *  @param priv      A pointer to struct lbs_private structure
 272  *  @return          0--success, -1--fail
 273  */
 274 int lbs_send_deauthentication(struct lbs_private *priv)
 275 {
 276         return lbs_prepare_and_send_command(priv, CMD_802_11_DEAUTHENTICATE,
 277                                      0, CMD_OPTION_WAITFORRSP, 0, NULL);
 278 }
 279
 280 /**
 281  *  @brief This function prepares command of authenticate.
 282  *
 283  *  @param priv      A pointer to struct lbs_private structure
 284  *  @param cmd       A pointer to cmd_ds_command structure
 285  *  @param pdata_buf Void cast of pointer to a BSSID to authenticate with
 286  *
 287  *  @return         0 or -1
 288  */
 289 int lbs_cmd_80211_authenticate(struct lbs_private *priv,
 290                                  struct cmd_ds_command *cmd,
 291                                  void *pdata_buf)
 292 {
 293         struct cmd_ds_802_11_authenticate *pauthenticate = &cmd->params.auth;
 294         int ret = -1;
 295         u8 *bssid = pdata_buf;
 296         DECLARE_MAC_BUF(mac);
 297
 298         lbs_deb_enter(LBS_DEB_JOIN);
 299
 300         cmd->command = cpu_to_le16(CMD_802_11_AUTHENTICATE);
 301         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_authenticate)
 302                                 + S_DS_GEN);
 303
 304         /* translate auth mode to 802.11 defined wire value */
 305         switch (priv->secinfo.auth_mode) {
 306         case IW_AUTH_ALG_OPEN_SYSTEM:
 307                 pauthenticate->authtype = 0x00;
 308                 break;
 309         case IW_AUTH_ALG_SHARED_KEY:
 310                 pauthenticate->authtype = 0x01;
 311                 break;
 312         case IW_AUTH_ALG_LEAP:
 313                 pauthenticate->authtype = 0x80;
 314                 break;
 315         default:
 316                 lbs_deb_join("AUTH_CMD: invalid auth alg 0x%X\n",
 317                              priv->secinfo.auth_mode);
 318                 goto out;
 319         }
 320
 321         memcpy(pauthenticate->macaddr, bssid, ETH_ALEN);
 322
 323         lbs_deb_join("AUTH_CMD: BSSID %s, auth 0x%x\n",
 324                      print_mac(mac, bssid), pauthenticate->authtype);
 325         ret = 0;
 326
 327 out:
 328         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 329         return ret;
 330 }
 331
 332 int lbs_cmd_80211_deauthenticate(struct lbs_private *priv,
 333                                    struct cmd_ds_command *cmd)
 334 {
 335         struct cmd_ds_802_11_deauthenticate *dauth = &cmd->params.deauth;
 336
 337         lbs_deb_enter(LBS_DEB_JOIN);
 338
 339         cmd->command = cpu_to_le16(CMD_802_11_DEAUTHENTICATE);
 340         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_deauthenticate) +
 341                              S_DS_GEN);
 342
 343         /* set AP MAC address */
 344         memmove(dauth->macaddr, priv->curbssparams.bssid, ETH_ALEN);
 345
 346         /* Reason code 3 = Station is leaving */
 347 #define REASON_CODE_STA_LEAVING 3
 348         dauth->reasoncode = cpu_to_le16(REASON_CODE_STA_LEAVING);
 349
 350         lbs_deb_leave(LBS_DEB_JOIN);
 351         return 0;
 352 }
 353
 354 int lbs_cmd_80211_associate(struct lbs_private *priv,
 355                               struct cmd_ds_command *cmd, void *pdata_buf)
 356 {
 357         struct cmd_ds_802_11_associate *passo = &cmd->params.associate;
 358         int ret = 0;
 359         struct assoc_request * assoc_req = pdata_buf;
 360         struct bss_descriptor * bss = &assoc_req->bss;
 361         u8 *pos;
 362         u16 tmpcap, tmplen;
 363         struct mrvlietypes_ssidparamset *ssid;
 364         struct mrvlietypes_phyparamset *phy;
 365         struct mrvlietypes_ssparamset *ss;
 366         struct mrvlietypes_ratesparamset *rates;
 367         struct mrvlietypes_rsnparamset *rsn;
 368
 369         lbs_deb_enter(LBS_DEB_ASSOC);
 370
 371         pos = (u8 *) passo;
 372
 373         if (!priv) {
 374                 ret = -1;
 375                 goto done;
 376         }
 377
 378         cmd->command = cpu_to_le16(CMD_802_11_ASSOCIATE);
 379
 380         memcpy(passo->peerstaaddr, bss->bssid, sizeof(passo->peerstaaddr));
 381         pos += sizeof(passo->peerstaaddr);
 382
 383         /* set the listen interval */
 384         passo->listeninterval = cpu_to_le16(MRVDRV_DEFAULT_LISTEN_INTERVAL);
 385
 386         pos += sizeof(passo->capability);
 387         pos += sizeof(passo->listeninterval);
 388         pos += sizeof(passo->bcnperiod);
 389         pos += sizeof(passo->dtimperiod);
 390
 391         ssid = (struct mrvlietypes_ssidparamset *) pos;
 392         ssid->header.type = cpu_to_le16(TLV_TYPE_SSID);
 393         tmplen = bss->ssid_len;
 394         ssid->header.len = cpu_to_le16(tmplen);
 395         memcpy(ssid->ssid, bss->ssid, tmplen);
 396         pos += sizeof(ssid->header) + tmplen;
 397
 398         phy = (struct mrvlietypes_phyparamset *) pos;
 399         phy->header.type = cpu_to_le16(TLV_TYPE_PHY_DS);
 400         tmplen = sizeof(phy->fh_ds.dsparamset);
 401         phy->header.len = cpu_to_le16(tmplen);
 402         memcpy(&phy->fh_ds.dsparamset,
 403                &bss->phyparamset.dsparamset.currentchan,
 404                tmplen);
 405         pos += sizeof(phy->header) + tmplen;
 406
 407         ss = (struct mrvlietypes_ssparamset *) pos;
 408         ss->header.type = cpu_to_le16(TLV_TYPE_CF);
 409         tmplen = sizeof(ss->cf_ibss.cfparamset);
 410         ss->header.len = cpu_to_le16(tmplen);
 411         pos += sizeof(ss->header) + tmplen;
 412
 413         rates = (struct mrvlietypes_ratesparamset *) pos;
 414         rates->header.type = cpu_to_le16(TLV_TYPE_RATES);
 415         memcpy(&rates->rates, &bss->rates, MAX_RATES);
 416         tmplen = MAX_RATES;
 417         if (get_common_rates(priv, rates->rates, &tmplen)) {
 418                 ret = -1;
 419                 goto done;
 420         }
 421         pos += sizeof(rates->header) + tmplen;
 422         rates->header.len = cpu_to_le16(tmplen);
 423         lbs_deb_assoc("ASSOC_CMD: num rates %u\n", tmplen);
 424
 425         /* Copy the infra. association rates into Current BSS state structure */
 426         memset(&priv->curbssparams.rates, 0, sizeof(priv->curbssparams.rates));
 427         memcpy(&priv->curbssparams.rates, &rates->rates, tmplen);
 428
 429         /* Set MSB on basic rates as the firmware requires, but _after_
 430          * copying to current bss rates.
 431          */
 432         lbs_set_basic_rate_flags(rates->rates, tmplen);
 433
 434         if (assoc_req->secinfo.WPAenabled || assoc_req->secinfo.WPA2enabled) {
 435                 rsn = (struct mrvlietypes_rsnparamset *) pos;
 436                 /* WPA_IE or WPA2_IE */
 437                 rsn->header.type = cpu_to_le16((u16) assoc_req->wpa_ie[0]);
 438                 tmplen = (u16) assoc_req->wpa_ie[1];
 439                 rsn->header.len = cpu_to_le16(tmplen);
 440                 memcpy(rsn->rsnie, &assoc_req->wpa_ie[2], tmplen);
 441                 lbs_deb_hex(LBS_DEB_JOIN, "ASSOC_CMD: RSN IE", (u8 *) rsn,
 442                         sizeof(rsn->header) + tmplen);
 443                 pos += sizeof(rsn->header) + tmplen;
 444         }
 445
 446         /* update curbssparams */
 447         priv->curbssparams.channel = bss->phyparamset.dsparamset.currentchan;
 448
 449         if (lbs_parse_dnld_countryinfo_11d(priv, bss)) {
 450                 ret = -1;
 451                 goto done;
 452         }
 453
 454         cmd->size = cpu_to_le16((u16) (pos - (u8 *) passo) + S_DS_GEN);
 455
 456         /* set the capability info */
 457         tmpcap = (bss->capability & CAPINFO_MASK);
 458         if (bss->mode == IW_MODE_INFRA)
 459                 tmpcap |= WLAN_CAPABILITY_ESS;
 460         passo->capability = cpu_to_le16(tmpcap);
 461         lbs_deb_assoc("ASSOC_CMD: capability 0x%04x\n", tmpcap);
 462
 463 done:
 464         lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
 465         return ret;
 466 }
 467
 468 int lbs_cmd_80211_ad_hoc_start(struct lbs_private *priv,
 469                                  struct cmd_ds_command *cmd, void *pdata_buf)
 470 {
 471         struct cmd_ds_802_11_ad_hoc_start *adhs = &cmd->params.ads;
 472         int ret = 0;
 473         int cmdappendsize = 0;
 474         struct assoc_request * assoc_req = pdata_buf;
 475         u16 tmpcap = 0;
 476         size_t ratesize = 0;
 477
 478         lbs_deb_enter(LBS_DEB_JOIN);
 479
 480         if (!priv) {
 481                 ret = -1;
 482                 goto done;
 483         }
 484
 485         cmd->command = cpu_to_le16(CMD_802_11_AD_HOC_START);
 486
 487         /*
 488          * Fill in the parameters for 2 data structures:
 489          *   1. cmd_ds_802_11_ad_hoc_start command
 490          *   2. priv->scantable[i]
 491          *
 492          * Driver will fill up SSID, bsstype,IBSS param, Physical Param,
 493          *   probe delay, and cap info.
 494          *
 495          * Firmware will fill up beacon period, DTIM, Basic rates
 496          *   and operational rates.
 497          */
 498
 499         memset(adhs->ssid, 0, IW_ESSID_MAX_SIZE);
 500         memcpy(adhs->ssid, assoc_req->ssid, assoc_req->ssid_len);
 501
 502         lbs_deb_join("ADHOC_S_CMD: SSID '%s', ssid length %u\n",
 503                      escape_essid(assoc_req->ssid, assoc_req->ssid_len),
 504                      assoc_req->ssid_len);
 505
 506         /* set the BSS type */
 507         adhs->bsstype = CMD_BSS_TYPE_IBSS;
 508         priv->mode = IW_MODE_ADHOC;
 509         if (priv->beacon_period == 0)
 510                 priv->beacon_period = MRVDRV_BEACON_INTERVAL;
 511         adhs->beaconperiod = cpu_to_le16(priv->beacon_period);
 512
 513         /* set Physical param set */
 514 #define DS_PARA_IE_ID   3
 515 #define DS_PARA_IE_LEN  1
 516
 517         adhs->phyparamset.dsparamset.elementid = DS_PARA_IE_ID;
 518         adhs->phyparamset.dsparamset.len = DS_PARA_IE_LEN;
 519
 520         WARN_ON(!assoc_req->channel);
 521
 522         lbs_deb_join("ADHOC_S_CMD: Creating ADHOC on channel %d\n",
 523                      assoc_req->channel);
 524
 525         adhs->phyparamset.dsparamset.currentchan = assoc_req->channel;
 526
 527         /* set IBSS param set */
 528 #define IBSS_PARA_IE_ID   6
 529 #define IBSS_PARA_IE_LEN  2
 530
 531         adhs->ssparamset.ibssparamset.elementid = IBSS_PARA_IE_ID;
 532         adhs->ssparamset.ibssparamset.len = IBSS_PARA_IE_LEN;
 533         adhs->ssparamset.ibssparamset.atimwindow = 0;
 534
 535         /* set capability info */
 536         tmpcap = WLAN_CAPABILITY_IBSS;
 537         if (assoc_req->secinfo.wep_enabled) {
 538                 lbs_deb_join("ADHOC_S_CMD: WEP enabled, setting privacy on\n");
 539                 tmpcap |= WLAN_CAPABILITY_PRIVACY;
 540         } else {
 541                 lbs_deb_join("ADHOC_S_CMD: WEP disabled, setting privacy off\n");
 542         }
 543         adhs->capability = cpu_to_le16(tmpcap);
 544
 545         /* probedelay */
 546         adhs->probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME);
 547
 548         memset(adhs->rates, 0, sizeof(adhs->rates));
 549         ratesize = min(sizeof(adhs->rates), sizeof(lbs_bg_rates));
 550         memcpy(adhs->rates, lbs_bg_rates, ratesize);
 551
 552         /* Copy the ad-hoc creating rates into Current BSS state structure */
 553         memset(&priv->curbssparams.rates, 0, sizeof(priv->curbssparams.rates));
 554         memcpy(&priv->curbssparams.rates, &adhs->rates, ratesize);
 555
 556         /* Set MSB on basic rates as the firmware requires, but _after_
 557          * copying to current bss rates.
 558          */
 559         lbs_set_basic_rate_flags(adhs->rates, ratesize);
 560
 561         lbs_deb_join("ADHOC_S_CMD: rates=%02x %02x %02x %02x \n",
 562                adhs->rates[0], adhs->rates[1], adhs->rates[2], adhs->rates[3]);
 563
 564         lbs_deb_join("ADHOC_S_CMD: AD HOC Start command is ready\n");
 565
 566         if (lbs_create_dnld_countryinfo_11d(priv)) {
 567                 lbs_deb_join("ADHOC_S_CMD: dnld_countryinfo_11d failed\n");
 568                 ret = -1;
 569                 goto done;
 570         }
 571
 572         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_ad_hoc_start) +
 573                                 S_DS_GEN + cmdappendsize);
 574
 575         ret = 0;
 576 done:
 577         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 578         return ret;
 579 }
 580
 581 int lbs_cmd_80211_ad_hoc_stop(struct lbs_private *priv,
 582                                 struct cmd_ds_command *cmd)
 583 {
 584         cmd->command = cpu_to_le16(CMD_802_11_AD_HOC_STOP);
 585         cmd->size = cpu_to_le16(S_DS_GEN);
 586
 587         return 0;
 588 }
 589
 590 int lbs_cmd_80211_ad_hoc_join(struct lbs_private *priv,
 591                                 struct cmd_ds_command *cmd, void *pdata_buf)
 592 {
 593         struct cmd_ds_802_11_ad_hoc_join *join_cmd = &cmd->params.adj;
 594         struct assoc_request * assoc_req = pdata_buf;
 595         struct bss_descriptor *bss = &assoc_req->bss;
 596         int cmdappendsize = 0;
 597         int ret = 0;
 598         u16 ratesize = 0;
 599         DECLARE_MAC_BUF(mac);
 600
 601         lbs_deb_enter(LBS_DEB_JOIN);
 602
 603         cmd->command = cpu_to_le16(CMD_802_11_AD_HOC_JOIN);
 604
 605         join_cmd->bss.type = CMD_BSS_TYPE_IBSS;
 606         join_cmd->bss.beaconperiod = cpu_to_le16(bss->beaconperiod);
 607
 608         memcpy(&join_cmd->bss.bssid, &bss->bssid, ETH_ALEN);
 609         memcpy(&join_cmd->bss.ssid, &bss->ssid, bss->ssid_len);
 610
 611         memcpy(&join_cmd->bss.phyparamset, &bss->phyparamset,
 612                sizeof(union ieeetypes_phyparamset));
 613
 614         memcpy(&join_cmd->bss.ssparamset, &bss->ssparamset,
 615                sizeof(union IEEEtypes_ssparamset));
 616
 617         join_cmd->bss.capability = cpu_to_le16(bss->capability & CAPINFO_MASK);
 618         lbs_deb_join("ADHOC_J_CMD: tmpcap=%4X CAPINFO_MASK=%4X\n",
 619                bss->capability, CAPINFO_MASK);
 620
 621         /* information on BSSID descriptor passed to FW */
 622         lbs_deb_join(
 623                "ADHOC_J_CMD: BSSID = %s, SSID = '%s'\n",
 624                print_mac(mac, join_cmd->bss.bssid),
 625                join_cmd->bss.ssid);
 626
 627         /* failtimeout */
 628         join_cmd->failtimeout = cpu_to_le16(MRVDRV_ASSOCIATION_TIME_OUT);
 629
 630         /* probedelay */
 631         join_cmd->probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME);
 632
 633         priv->curbssparams.channel = bss->channel;
 634
 635         /* Copy Data rates from the rates recorded in scan response */
 636         memset(join_cmd->bss.rates, 0, sizeof(join_cmd->bss.rates));
 637         ratesize = min_t(u16, sizeof(join_cmd->bss.rates), MAX_RATES);
 638         memcpy(join_cmd->bss.rates, bss->rates, ratesize);
 639         if (get_common_rates(priv, join_cmd->bss.rates, &ratesize)) {
 640                 lbs_deb_join("ADHOC_J_CMD: get_common_rates returns error.\n");
 641                 ret = -1;
 642                 goto done;
 643         }
 644
 645         /* Copy the ad-hoc creating rates into Current BSS state structure */
 646         memset(&priv->curbssparams.rates, 0, sizeof(priv->curbssparams.rates));
 647         memcpy(&priv->curbssparams.rates, join_cmd->bss.rates, ratesize);
 648
 649         /* Set MSB on basic rates as the firmware requires, but _after_
 650          * copying to current bss rates.
 651          */
 652         lbs_set_basic_rate_flags(join_cmd->bss.rates, ratesize);
 653
 654         join_cmd->bss.ssparamset.ibssparamset.atimwindow =
 655             cpu_to_le16(bss->atimwindow);
 656
 657         if (assoc_req->secinfo.wep_enabled) {
 658                 u16 tmp = le16_to_cpu(join_cmd->bss.capability);
 659                 tmp |= WLAN_CAPABILITY_PRIVACY;
 660                 join_cmd->bss.capability = cpu_to_le16(tmp);
 661         }
 662
 663         if (priv->psmode == LBS802_11POWERMODEMAX_PSP) {
 664                 /* wake up first */
 665                 __le32 Localpsmode;
 666
 667                 Localpsmode = cpu_to_le32(LBS802_11POWERMODECAM);
 668                 ret = lbs_prepare_and_send_command(priv,
 669                                             CMD_802_11_PS_MODE,
 670                                             CMD_ACT_SET,
 671                                             0, 0, &Localpsmode);
 672
 673                 if (ret) {
 674                         ret = -1;
 675                         goto done;
 676                 }
 677         }
 678
 679         if (lbs_parse_dnld_countryinfo_11d(priv, bss)) {
 680                 ret = -1;
 681                 goto done;
 682         }
 683
 684         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_ad_hoc_join) +
 685                                 S_DS_GEN + cmdappendsize);
 686
 687 done:
 688         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 689         return ret;
 690 }
 691
 692 int lbs_ret_80211_associate(struct lbs_private *priv,
 693                               struct cmd_ds_command *resp)
 694 {
 695         int ret = 0;
 696         union iwreq_data wrqu;
 697         struct ieeetypes_assocrsp *passocrsp;
 698         struct bss_descriptor * bss;
 699         u16 status_code;
 700
 701         lbs_deb_enter(LBS_DEB_ASSOC);
 702
 703         if (!priv->in_progress_assoc_req) {
 704                 lbs_deb_assoc("ASSOC_RESP: no in-progress assoc request\n");
 705                 ret = -1;
 706                 goto done;
 707         }
 708         bss = &priv->in_progress_assoc_req->bss;
 709
 710         passocrsp = (struct ieeetypes_assocrsp *) & resp->params;
 711
 712         /*
 713          * Older FW versions map the IEEE 802.11 Status Code in the association
 714          * response to the following values returned in passocrsp->statuscode:
 715          *
 716          *    IEEE Status Code                Marvell Status Code
 717          *    0                       ->      0x0000 ASSOC_RESULT_SUCCESS
 718          *    13                      ->      0x0004 ASSOC_RESULT_AUTH_REFUSED
 719          *    14                      ->      0x0004 ASSOC_RESULT_AUTH_REFUSED
 720          *    15                      ->      0x0004 ASSOC_RESULT_AUTH_REFUSED
 721          *    16                      ->      0x0004 ASSOC_RESULT_AUTH_REFUSED
 722          *    others                  ->      0x0003 ASSOC_RESULT_REFUSED
 723          *
 724          * Other response codes:
 725          *    0x0001 -> ASSOC_RESULT_INVALID_PARAMETERS (unused)
 726          *    0x0002 -> ASSOC_RESULT_TIMEOUT (internal timer expired waiting for
 727          *                                    association response from the AP)
 728          */
 729
 730         status_code = le16_to_cpu(passocrsp->statuscode);
 731         switch (status_code) {
 732         case 0x00:
 733                 break;
 734         case 0x01:
 735                 lbs_deb_assoc("ASSOC_RESP: invalid parameters\n");
 736                 break;
 737         case 0x02:
 738                 lbs_deb_assoc("ASSOC_RESP: internal timer "
 739                         "expired while waiting for the AP\n");
 740                 break;
 741         case 0x03:
 742                 lbs_deb_assoc("ASSOC_RESP: association "
 743                         "refused by AP\n");
 744                 break;
 745         case 0x04:
 746                 lbs_deb_assoc("ASSOC_RESP: authentication "
 747                         "refused by AP\n");
 748                 break;
 749         default:
 750                 lbs_deb_assoc("ASSOC_RESP: failure reason 0x%02x "
 751                         " unknown\n", status_code);
 752                 break;
 753         }
 754
 755         if (status_code) {
 756                 lbs_mac_event_disconnected(priv);
 757                 ret = -1;
 758                 goto done;
 759         }
 760
 761         lbs_deb_hex(LBS_DEB_ASSOC, "ASSOC_RESP", (void *)&resp->params,
 762                 le16_to_cpu(resp->size) - S_DS_GEN);
 763
 764         /* Send a Media Connected event, according to the Spec */
 765         priv->connect_status = LBS_CONNECTED;
 766
 767         /* Update current SSID and BSSID */
 768         memcpy(&priv->curbssparams.ssid, &bss->ssid, IW_ESSID_MAX_SIZE);
 769         priv->curbssparams.ssid_len = bss->ssid_len;
 770         memcpy(priv->curbssparams.bssid, bss->bssid, ETH_ALEN);
 771
 772         lbs_deb_assoc("ASSOC_RESP: currentpacketfilter is 0x%x\n",
 773                 priv->currentpacketfilter);
 774
 775         priv->SNR[TYPE_RXPD][TYPE_AVG] = 0;
 776         priv->NF[TYPE_RXPD][TYPE_AVG] = 0;
 777
 778         memset(priv->rawSNR, 0x00, sizeof(priv->rawSNR));
 779         memset(priv->rawNF, 0x00, sizeof(priv->rawNF));
 780         priv->nextSNRNF = 0;
 781         priv->numSNRNF = 0;
 782
 783         netif_carrier_on(priv->dev);
 784         if (!priv->tx_pending_len)
 785                 netif_wake_queue(priv->dev);
 786
 787         memcpy(wrqu.ap_addr.sa_data, priv->curbssparams.bssid, ETH_ALEN);
 788         wrqu.ap_addr.sa_family = ARPHRD_ETHER;
 789         wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
 790
 791 done:
 792         lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
 793         return ret;
 794 }
 795
 796 int lbs_ret_80211_disassociate(struct lbs_private *priv,
 797                                  struct cmd_ds_command *resp)
 798 {
 799         lbs_deb_enter(LBS_DEB_JOIN);
 800
 801         lbs_mac_event_disconnected(priv);
 802
 803         lbs_deb_leave(LBS_DEB_JOIN);
 804         return 0;
 805 }
 806
 807 int lbs_ret_80211_ad_hoc_start(struct lbs_private *priv,
 808                                  struct cmd_ds_command *resp)
 809 {
 810         int ret = 0;
 811         u16 command = le16_to_cpu(resp->command);
 812         u16 result = le16_to_cpu(resp->result);
 813         struct cmd_ds_802_11_ad_hoc_result *padhocresult;
 814         union iwreq_data wrqu;
 815         struct bss_descriptor *bss;
 816         DECLARE_MAC_BUF(mac);
 817
 818         lbs_deb_enter(LBS_DEB_JOIN);
 819
 820         padhocresult = &resp->params.result;
 821
 822         lbs_deb_join("ADHOC_RESP: size = %d\n", le16_to_cpu(resp->size));
 823         lbs_deb_join("ADHOC_RESP: command = %x\n", command);
 824         lbs_deb_join("ADHOC_RESP: result = %x\n", result);
 825
 826         if (!priv->in_progress_assoc_req) {
 827                 lbs_deb_join("ADHOC_RESP: no in-progress association request\n");
 828                 ret = -1;
 829                 goto done;
 830         }
 831         bss = &priv->in_progress_assoc_req->bss;
 832
 833         /*
 834          * Join result code 0 --> SUCCESS
 835          */
 836         if (result) {
 837                 lbs_deb_join("ADHOC_RESP: failed\n");
 838                 if (priv->connect_status == LBS_CONNECTED) {
 839                         lbs_mac_event_disconnected(priv);
 840                 }
 841                 ret = -1;
 842                 goto done;
 843         }
 844
 845         /*
 846          * Now the join cmd should be successful
 847          * If BSSID has changed use SSID to compare instead of BSSID
 848          */
 849         lbs_deb_join("ADHOC_RESP: associated to '%s'\n",
 850                      escape_essid(bss->ssid, bss->ssid_len));
 851
 852         /* Send a Media Connected event, according to the Spec */
 853         priv->connect_status = LBS_CONNECTED;
 854
 855         if (command == CMD_RET(CMD_802_11_AD_HOC_START)) {
 856                 /* Update the created network descriptor with the new BSSID */
 857                 memcpy(bss->bssid, padhocresult->bssid, ETH_ALEN);
 858         }
 859
 860         /* Set the BSSID from the joined/started descriptor */
 861         memcpy(&priv->curbssparams.bssid, bss->bssid, ETH_ALEN);
 862
 863         /* Set the new SSID to current SSID */
 864         memcpy(&priv->curbssparams.ssid, &bss->ssid, IW_ESSID_MAX_SIZE);
 865         priv->curbssparams.ssid_len = bss->ssid_len;
 866
 867         netif_carrier_on(priv->dev);
 868         if (!priv->tx_pending_len)
 869                 netif_wake_queue(priv->dev);
 870
 871         memset(&wrqu, 0, sizeof(wrqu));
 872         memcpy(wrqu.ap_addr.sa_data, priv->curbssparams.bssid, ETH_ALEN);
 873         wrqu.ap_addr.sa_family = ARPHRD_ETHER;
 874         wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
 875
 876         lbs_deb_join("ADHOC_RESP: - Joined/Started Ad Hoc\n");
 877         lbs_deb_join("ADHOC_RESP: channel = %d\n", priv->curbssparams.channel);
 878         lbs_deb_join("ADHOC_RESP: BSSID = %s\n",
 879                      print_mac(mac, padhocresult->bssid));
 880
 881 done:
 882         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 883         return ret;
 884 }
 885
 886 int lbs_ret_80211_ad_hoc_stop(struct lbs_private *priv,
 887                                 struct cmd_ds_command *resp)
 888 {
 889         lbs_deb_enter(LBS_DEB_JOIN);
 890
 891         lbs_mac_event_disconnected(priv);
 892
 893         lbs_deb_leave(LBS_DEB_JOIN);
 894         return 0;
 895 }