git.oblomov.eu Git - linux-2.6/blob - 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 /* 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 adapter     A pointer to wlan_adapter 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(wlan_adapter * adapter, u8 * rates, u16 *rates_size)
  40 {
  41         u8 *card_rates = libertas_bg_rates;
  42         size_t num_card_rates = sizeof(libertas_bg_rates);
  43         int ret = 0, i, j;
  44         u8 tmp[30];
  45         size_t tmp_size = 0;
  46
  47         /* For each rate in card_rates that exists in rate1, copy to tmp */
  48         for (i = 0; card_rates[i] && (i < num_card_rates); i++) {
  49                 for (j = 0; rates[j] && (j < *rates_size); j++) {
  50                         if (rates[j] == card_rates[i])
  51                                 tmp[tmp_size++] = card_rates[i];
  52                 }
  53         }
  54
  55         lbs_deb_hex(LBS_DEB_JOIN, "AP rates    ", rates, *rates_size);
  56         lbs_deb_hex(LBS_DEB_JOIN, "card rates  ", card_rates, num_card_rates);
  57         lbs_deb_hex(LBS_DEB_JOIN, "common rates", tmp, tmp_size);
  58         lbs_deb_join("Tx datarate is currently 0x%X\n", adapter->cur_rate);
  59
  60         if (!adapter->auto_rate) {
  61                 for (i = 0; i < tmp_size; i++) {
  62                         if (tmp[i] == adapter->cur_rate)
  63                                 goto done;
  64                 }
  65                 lbs_pr_alert("Previously set fixed data rate %#x isn't "
  66                        "compatible with the network.\n", adapter->cur_rate);
  67                 ret = -1;
  68                 goto done;
  69         }
  70         ret = 0;
  71
  72 done:
  73         memset(rates, 0, *rates_size);
  74         *rates_size = min_t(int, tmp_size, *rates_size);
  75         memcpy(rates, tmp, *rates_size);
  76         return ret;
  77 }
  78
  79
  80 /**
  81  *  @brief Sets the MSB on basic rates as the firmware requires
  82  *
  83  * Scan through an array and set the MSB for basic data rates.
  84  *
  85  *  @param rates     buffer of data rates
  86  *  @param len       size of buffer
  87  */
  88 static void libertas_set_basic_rate_flags(u8 * rates, size_t len)
  89 {
  90         int i;
  91
  92         for (i = 0; i < len; i++) {
  93                 if (rates[i] == 0x02 || rates[i] == 0x04 ||
  94                     rates[i] == 0x0b || rates[i] == 0x16)
  95                         rates[i] |= 0x80;
  96         }
  97 }
  98
  99 /**
 100  *  @brief Unsets the MSB on basic rates
 101  *
 102  * Scan through an array and unset the MSB for basic data rates.
 103  *
 104  *  @param rates     buffer of data rates
 105  *  @param len       size of buffer
 106  */
 107 void libertas_unset_basic_rate_flags(u8 * rates, size_t len)
 108 {
 109         int i;
 110
 111         for (i = 0; i < len; i++)
 112                 rates[i] &= 0x7f;
 113 }
 114
 115
 116 /**
 117  *  @brief Associate to a specific BSS discovered in a scan
 118  *
 119  *  @param priv      A pointer to wlan_private structure
 120  *  @param pbssdesc  Pointer to the BSS descriptor to associate with.
 121  *
 122  *  @return          0-success, otherwise fail
 123  */
 124 int wlan_associate(wlan_private * priv, struct assoc_request * assoc_req)
 125 {
 126         wlan_adapter *adapter = priv->adapter;
 127         int ret;
 128
 129         lbs_deb_enter(LBS_DEB_JOIN);
 130
 131         ret = libertas_prepare_and_send_command(priv, CMD_802_11_AUTHENTICATE,
 132                                     0, CMD_OPTION_WAITFORRSP,
 133                                     0, assoc_req->bss.bssid);
 134
 135         if (ret)
 136                 goto done;
 137
 138         /* set preamble to firmware */
 139         if (   (adapter->capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
 140             && (assoc_req->bss.capability & WLAN_CAPABILITY_SHORT_PREAMBLE))
 141                 adapter->preamble = CMD_TYPE_SHORT_PREAMBLE;
 142         else
 143                 adapter->preamble = CMD_TYPE_LONG_PREAMBLE;
 144
 145         libertas_set_radio_control(priv);
 146
 147         ret = libertas_prepare_and_send_command(priv, CMD_802_11_ASSOCIATE,
 148                                     0, CMD_OPTION_WAITFORRSP, 0, assoc_req);
 149
 150 done:
 151         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 152         return ret;
 153 }
 154
 155 /**
 156  *  @brief Start an Adhoc Network
 157  *
 158  *  @param priv         A pointer to wlan_private structure
 159  *  @param adhocssid    The ssid of the Adhoc Network
 160  *  @return             0--success, -1--fail
 161  */
 162 int libertas_start_adhoc_network(wlan_private * priv, struct assoc_request * assoc_req)
 163 {
 164         wlan_adapter *adapter = priv->adapter;
 165         int ret = 0;
 166
 167         adapter->adhoccreate = 1;
 168
 169         if (adapter->capability & WLAN_CAPABILITY_SHORT_PREAMBLE) {
 170                 lbs_deb_join("AdhocStart: Short preamble\n");
 171                 adapter->preamble = CMD_TYPE_SHORT_PREAMBLE;
 172         } else {
 173                 lbs_deb_join("AdhocStart: Long preamble\n");
 174                 adapter->preamble = CMD_TYPE_LONG_PREAMBLE;
 175         }
 176
 177         libertas_set_radio_control(priv);
 178
 179         lbs_deb_join("AdhocStart: channel = %d\n", assoc_req->channel);
 180         lbs_deb_join("AdhocStart: band = %d\n", assoc_req->band);
 181
 182         ret = libertas_prepare_and_send_command(priv, CMD_802_11_AD_HOC_START,
 183                                     0, CMD_OPTION_WAITFORRSP, 0, assoc_req);
 184
 185         return ret;
 186 }
 187
 188 /**
 189  *  @brief Join an adhoc network found in a previous scan
 190  *
 191  *  @param priv         A pointer to wlan_private structure
 192  *  @param pbssdesc     Pointer to a BSS descriptor found in a previous scan
 193  *                      to attempt to join
 194  *
 195  *  @return             0--success, -1--fail
 196  */
 197 int libertas_join_adhoc_network(wlan_private * priv, struct assoc_request * assoc_req)
 198 {
 199         wlan_adapter *adapter = priv->adapter;
 200         struct bss_descriptor * bss = &assoc_req->bss;
 201         int ret = 0;
 202
 203         lbs_deb_join("%s: Current SSID '%s', ssid length %u\n",
 204                      __func__,
 205                      escape_essid(adapter->curbssparams.ssid,
 206                                   adapter->curbssparams.ssid_len),
 207                      adapter->curbssparams.ssid_len);
 208         lbs_deb_join("%s: requested ssid '%s', ssid length %u\n",
 209                      __func__, escape_essid(bss->ssid, bss->ssid_len),
 210                      bss->ssid_len);
 211
 212         /* check if the requested SSID is already joined */
 213         if (   adapter->curbssparams.ssid_len
 214             && !libertas_ssid_cmp(adapter->curbssparams.ssid,
 215                                   adapter->curbssparams.ssid_len,
 216                                   bss->ssid, bss->ssid_len)
 217             && (adapter->mode == IW_MODE_ADHOC)
 218             && (adapter->connect_status == LIBERTAS_CONNECTED)) {
 219                 union iwreq_data wrqu;
 220
 221                 lbs_deb_join("ADHOC_J_CMD: New ad-hoc SSID is the same as "
 222                              "current, not attempting to re-join");
 223
 224                 /* Send the re-association event though, because the association
 225                  * request really was successful, even if just a null-op.
 226                  */
 227                 memset(&wrqu, 0, sizeof(wrqu));
 228                 memcpy(wrqu.ap_addr.sa_data, adapter->curbssparams.bssid,
 229                        ETH_ALEN);
 230                 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
 231                 wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
 232                 goto out;
 233         }
 234
 235         /* Use shortpreamble only when both creator and card supports
 236            short preamble */
 237         if (   !(bss->capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
 238             || !(adapter->capability & WLAN_CAPABILITY_SHORT_PREAMBLE)) {
 239                 lbs_deb_join("AdhocJoin: Long preamble\n");
 240                 adapter->preamble = CMD_TYPE_LONG_PREAMBLE;
 241         } else {
 242                 lbs_deb_join("AdhocJoin: Short preamble\n");
 243                 adapter->preamble = CMD_TYPE_SHORT_PREAMBLE;
 244         }
 245
 246         libertas_set_radio_control(priv);
 247
 248         lbs_deb_join("AdhocJoin: channel = %d\n", assoc_req->channel);
 249         lbs_deb_join("AdhocJoin: band = %c\n", assoc_req->band);
 250
 251         adapter->adhoccreate = 0;
 252
 253         ret = libertas_prepare_and_send_command(priv, CMD_802_11_AD_HOC_JOIN,
 254                                     0, CMD_OPTION_WAITFORRSP,
 255                                     OID_802_11_SSID, assoc_req);
 256
 257 out:
 258         return ret;
 259 }
 260
 261 int libertas_stop_adhoc_network(wlan_private * priv)
 262 {
 263         return libertas_prepare_and_send_command(priv, CMD_802_11_AD_HOC_STOP,
 264                                      0, CMD_OPTION_WAITFORRSP, 0, NULL);
 265 }
 266
 267 /**
 268  *  @brief Send Deauthentication Request
 269  *
 270  *  @param priv      A pointer to wlan_private structure
 271  *  @return          0--success, -1--fail
 272  */
 273 int libertas_send_deauthentication(wlan_private * priv)
 274 {
 275         return libertas_prepare_and_send_command(priv, CMD_802_11_DEAUTHENTICATE,
 276                                      0, CMD_OPTION_WAITFORRSP, 0, NULL);
 277 }
 278
 279 /**
 280  *  @brief This function prepares command of authenticate.
 281  *
 282  *  @param priv      A pointer to wlan_private structure
 283  *  @param cmd       A pointer to cmd_ds_command structure
 284  *  @param pdata_buf Void cast of pointer to a BSSID to authenticate with
 285  *
 286  *  @return         0 or -1
 287  */
 288 int libertas_cmd_80211_authenticate(wlan_private * priv,
 289                                  struct cmd_ds_command *cmd,
 290                                  void *pdata_buf)
 291 {
 292         wlan_adapter *adapter = priv->adapter;
 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 (adapter->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                              adapter->secinfo.auth_mode);
 318                 goto out;
 319         }
 320
 321         memcpy(pauthenticate->macaddr, bssid, ETH_ALEN);
 322
 323         lbs_deb_join("AUTH_CMD: BSSID is : %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 libertas_cmd_80211_deauthenticate(wlan_private * priv,
 333                                    struct cmd_ds_command *cmd)
 334 {
 335         wlan_adapter *adapter = priv->adapter;
 336         struct cmd_ds_802_11_deauthenticate *dauth = &cmd->params.deauth;
 337
 338         lbs_deb_enter(LBS_DEB_JOIN);
 339
 340         cmd->command = cpu_to_le16(CMD_802_11_DEAUTHENTICATE);
 341         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_deauthenticate) +
 342                              S_DS_GEN);
 343
 344         /* set AP MAC address */
 345         memmove(dauth->macaddr, adapter->curbssparams.bssid, ETH_ALEN);
 346
 347         /* Reason code 3 = Station is leaving */
 348 #define REASON_CODE_STA_LEAVING 3
 349         dauth->reasoncode = cpu_to_le16(REASON_CODE_STA_LEAVING);
 350
 351         lbs_deb_leave(LBS_DEB_JOIN);
 352         return 0;
 353 }
 354
 355 int libertas_cmd_80211_associate(wlan_private * priv,
 356                               struct cmd_ds_command *cmd, void *pdata_buf)
 357 {
 358         wlan_adapter *adapter = priv->adapter;
 359         struct cmd_ds_802_11_associate *passo = &cmd->params.associate;
 360         int ret = 0;
 361         struct assoc_request * assoc_req = pdata_buf;
 362         struct bss_descriptor * bss = &assoc_req->bss;
 363         u8 *pos;
 364         u16 tmpcap, tmplen;
 365         struct mrvlietypes_ssidparamset *ssid;
 366         struct mrvlietypes_phyparamset *phy;
 367         struct mrvlietypes_ssparamset *ss;
 368         struct mrvlietypes_ratesparamset *rates;
 369         struct mrvlietypes_rsnparamset *rsn;
 370
 371         lbs_deb_enter(LBS_DEB_JOIN);
 372
 373         pos = (u8 *) passo;
 374
 375         if (!adapter) {
 376                 ret = -1;
 377                 goto done;
 378         }
 379
 380         cmd->command = cpu_to_le16(CMD_802_11_ASSOCIATE);
 381
 382         memcpy(passo->peerstaaddr, bss->bssid, sizeof(passo->peerstaaddr));
 383         pos += sizeof(passo->peerstaaddr);
 384
 385         /* set the listen interval */
 386         passo->listeninterval = cpu_to_le16(MRVDRV_DEFAULT_LISTEN_INTERVAL);
 387
 388         pos += sizeof(passo->capability);
 389         pos += sizeof(passo->listeninterval);
 390         pos += sizeof(passo->bcnperiod);
 391         pos += sizeof(passo->dtimperiod);
 392
 393         ssid = (struct mrvlietypes_ssidparamset *) pos;
 394         ssid->header.type = cpu_to_le16(TLV_TYPE_SSID);
 395         tmplen = bss->ssid_len;
 396         ssid->header.len = cpu_to_le16(tmplen);
 397         memcpy(ssid->ssid, bss->ssid, tmplen);
 398         pos += sizeof(ssid->header) + tmplen;
 399
 400         phy = (struct mrvlietypes_phyparamset *) pos;
 401         phy->header.type = cpu_to_le16(TLV_TYPE_PHY_DS);
 402         tmplen = sizeof(phy->fh_ds.dsparamset);
 403         phy->header.len = cpu_to_le16(tmplen);
 404         memcpy(&phy->fh_ds.dsparamset,
 405                &bss->phyparamset.dsparamset.currentchan,
 406                tmplen);
 407         pos += sizeof(phy->header) + tmplen;
 408
 409         ss = (struct mrvlietypes_ssparamset *) pos;
 410         ss->header.type = cpu_to_le16(TLV_TYPE_CF);
 411         tmplen = sizeof(ss->cf_ibss.cfparamset);
 412         ss->header.len = cpu_to_le16(tmplen);
 413         pos += sizeof(ss->header) + tmplen;
 414
 415         rates = (struct mrvlietypes_ratesparamset *) pos;
 416         rates->header.type = cpu_to_le16(TLV_TYPE_RATES);
 417         memcpy(&rates->rates, &bss->rates, MAX_RATES);
 418         tmplen = MAX_RATES;
 419         if (get_common_rates(adapter, rates->rates, &tmplen)) {
 420                 ret = -1;
 421                 goto done;
 422         }
 423         pos += sizeof(rates->header) + tmplen;
 424         rates->header.len = cpu_to_le16(tmplen);
 425         lbs_deb_join("ASSOC_CMD: num rates = %u\n", tmplen);
 426
 427         /* Copy the infra. association rates into Current BSS state structure */
 428         memset(&adapter->curbssparams.rates, 0, sizeof(adapter->curbssparams.rates));
 429         memcpy(&adapter->curbssparams.rates, &rates->rates, tmplen);
 430
 431         /* Set MSB on basic rates as the firmware requires, but _after_
 432          * copying to current bss rates.
 433          */
 434         libertas_set_basic_rate_flags(rates->rates, tmplen);
 435
 436         if (assoc_req->secinfo.WPAenabled || assoc_req->secinfo.WPA2enabled) {
 437                 rsn = (struct mrvlietypes_rsnparamset *) pos;
 438                 /* WPA_IE or WPA2_IE */
 439                 rsn->header.type = cpu_to_le16((u16) assoc_req->wpa_ie[0]);
 440                 tmplen = (u16) assoc_req->wpa_ie[1];
 441                 rsn->header.len = cpu_to_le16(tmplen);
 442                 memcpy(rsn->rsnie, &assoc_req->wpa_ie[2], tmplen);
 443                 lbs_deb_hex(LBS_DEB_JOIN, "ASSOC_CMD: RSN IE", (u8 *) rsn,
 444                         sizeof(rsn->header) + tmplen);
 445                 pos += sizeof(rsn->header) + tmplen;
 446         }
 447
 448         /* update curbssparams */
 449         adapter->curbssparams.channel = bss->phyparamset.dsparamset.currentchan;
 450
 451         if (libertas_parse_dnld_countryinfo_11d(priv, bss)) {
 452                 ret = -1;
 453                 goto done;
 454         }
 455
 456         cmd->size = cpu_to_le16((u16) (pos - (u8 *) passo) + S_DS_GEN);
 457
 458         /* set the capability info */
 459         tmpcap = (bss->capability & CAPINFO_MASK);
 460         if (bss->mode == IW_MODE_INFRA)
 461                 tmpcap |= WLAN_CAPABILITY_ESS;
 462         passo->capability = cpu_to_le16(tmpcap);
 463         lbs_deb_join("ASSOC_CMD: capability=%4X CAPINFO_MASK=%4X\n",
 464                      tmpcap, CAPINFO_MASK);
 465
 466 done:
 467         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 468         return ret;
 469 }
 470
 471 int libertas_cmd_80211_ad_hoc_start(wlan_private * priv,
 472                                  struct cmd_ds_command *cmd, void *pdata_buf)
 473 {
 474         wlan_adapter *adapter = priv->adapter;
 475         struct cmd_ds_802_11_ad_hoc_start *adhs = &cmd->params.ads;
 476         int ret = 0;
 477         int cmdappendsize = 0;
 478         struct assoc_request * assoc_req = pdata_buf;
 479         u16 tmpcap = 0;
 480         size_t ratesize = 0;
 481
 482         lbs_deb_enter(LBS_DEB_JOIN);
 483
 484         if (!adapter) {
 485                 ret = -1;
 486                 goto done;
 487         }
 488
 489         cmd->command = cpu_to_le16(CMD_802_11_AD_HOC_START);
 490
 491         /*
 492          * Fill in the parameters for 2 data structures:
 493          *   1. cmd_ds_802_11_ad_hoc_start command
 494          *   2. adapter->scantable[i]
 495          *
 496          * Driver will fill up SSID, bsstype,IBSS param, Physical Param,
 497          *   probe delay, and cap info.
 498          *
 499          * Firmware will fill up beacon period, DTIM, Basic rates
 500          *   and operational rates.
 501          */
 502
 503         memset(adhs->ssid, 0, IW_ESSID_MAX_SIZE);
 504         memcpy(adhs->ssid, assoc_req->ssid, assoc_req->ssid_len);
 505
 506         lbs_deb_join("ADHOC_S_CMD: SSID '%s', ssid length %u\n",
 507                      escape_essid(assoc_req->ssid, assoc_req->ssid_len),
 508                      assoc_req->ssid_len);
 509
 510         /* set the BSS type */
 511         adhs->bsstype = CMD_BSS_TYPE_IBSS;
 512         adapter->mode = IW_MODE_ADHOC;
 513         adhs->beaconperiod = cpu_to_le16(MRVDRV_BEACON_INTERVAL);
 514
 515         /* set Physical param set */
 516 #define DS_PARA_IE_ID   3
 517 #define DS_PARA_IE_LEN  1
 518
 519         adhs->phyparamset.dsparamset.elementid = DS_PARA_IE_ID;
 520         adhs->phyparamset.dsparamset.len = DS_PARA_IE_LEN;
 521
 522         WARN_ON(!assoc_req->channel);
 523
 524         lbs_deb_join("ADHOC_S_CMD: Creating ADHOC on channel %d\n",
 525                      assoc_req->channel);
 526
 527         adhs->phyparamset.dsparamset.currentchan = assoc_req->channel;
 528
 529         /* set IBSS param set */
 530 #define IBSS_PARA_IE_ID   6
 531 #define IBSS_PARA_IE_LEN  2
 532
 533         adhs->ssparamset.ibssparamset.elementid = IBSS_PARA_IE_ID;
 534         adhs->ssparamset.ibssparamset.len = IBSS_PARA_IE_LEN;
 535         adhs->ssparamset.ibssparamset.atimwindow = 0;
 536
 537         /* set capability info */
 538         tmpcap = WLAN_CAPABILITY_IBSS;
 539         if (assoc_req->secinfo.wep_enabled) {
 540                 lbs_deb_join("ADHOC_S_CMD: WEP enabled, setting privacy on\n");
 541                 tmpcap |= WLAN_CAPABILITY_PRIVACY;
 542         } else {
 543                 lbs_deb_join("ADHOC_S_CMD: WEP disabled, setting privacy off\n");
 544         }
 545         adhs->capability = cpu_to_le16(tmpcap);
 546
 547         /* probedelay */
 548         adhs->probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME);
 549
 550         memset(adhs->rates, 0, sizeof(adhs->rates));
 551         ratesize = min(sizeof(adhs->rates), sizeof(libertas_bg_rates));
 552         memcpy(adhs->rates, libertas_bg_rates, ratesize);
 553
 554         /* Copy the ad-hoc creating rates into Current BSS state structure */
 555         memset(&adapter->curbssparams.rates, 0, sizeof(adapter->curbssparams.rates));
 556         memcpy(&adapter->curbssparams.rates, &adhs->rates, ratesize);
 557
 558         /* Set MSB on basic rates as the firmware requires, but _after_
 559          * copying to current bss rates.
 560          */
 561         libertas_set_basic_rate_flags(adhs->rates, ratesize);
 562
 563         lbs_deb_join("ADHOC_S_CMD: rates=%02x %02x %02x %02x \n",
 564                adhs->rates[0], adhs->rates[1], adhs->rates[2], adhs->rates[3]);
 565
 566         lbs_deb_join("ADHOC_S_CMD: AD HOC Start command is ready\n");
 567
 568         if (libertas_create_dnld_countryinfo_11d(priv)) {
 569                 lbs_deb_join("ADHOC_S_CMD: dnld_countryinfo_11d failed\n");
 570                 ret = -1;
 571                 goto done;
 572         }
 573
 574         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_ad_hoc_start) +
 575                                 S_DS_GEN + cmdappendsize);
 576
 577         ret = 0;
 578 done:
 579         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 580         return ret;
 581 }
 582
 583 int libertas_cmd_80211_ad_hoc_stop(wlan_private * priv,
 584                                 struct cmd_ds_command *cmd)
 585 {
 586         cmd->command = cpu_to_le16(CMD_802_11_AD_HOC_STOP);
 587         cmd->size = cpu_to_le16(S_DS_GEN);
 588
 589         return 0;
 590 }
 591
 592 int libertas_cmd_80211_ad_hoc_join(wlan_private * priv,
 593                                 struct cmd_ds_command *cmd, void *pdata_buf)
 594 {
 595         wlan_adapter *adapter = priv->adapter;
 596         struct cmd_ds_802_11_ad_hoc_join *join_cmd = &cmd->params.adj;
 597         struct assoc_request * assoc_req = pdata_buf;
 598         struct bss_descriptor *bss = &assoc_req->bss;
 599         int cmdappendsize = 0;
 600         int ret = 0;
 601         u16 ratesize = 0;
 602         DECLARE_MAC_BUF(mac);
 603
 604         lbs_deb_enter(LBS_DEB_JOIN);
 605
 606         cmd->command = cpu_to_le16(CMD_802_11_AD_HOC_JOIN);
 607
 608         join_cmd->bss.type = CMD_BSS_TYPE_IBSS;
 609         join_cmd->bss.beaconperiod = cpu_to_le16(bss->beaconperiod);
 610
 611         memcpy(&join_cmd->bss.bssid, &bss->bssid, ETH_ALEN);
 612         memcpy(&join_cmd->bss.ssid, &bss->ssid, bss->ssid_len);
 613
 614         memcpy(&join_cmd->bss.phyparamset, &bss->phyparamset,
 615                sizeof(union ieeetypes_phyparamset));
 616
 617         memcpy(&join_cmd->bss.ssparamset, &bss->ssparamset,
 618                sizeof(union IEEEtypes_ssparamset));
 619
 620         join_cmd->bss.capability = cpu_to_le16(bss->capability & CAPINFO_MASK);
 621         lbs_deb_join("ADHOC_J_CMD: tmpcap=%4X CAPINFO_MASK=%4X\n",
 622                bss->capability, CAPINFO_MASK);
 623
 624         /* information on BSSID descriptor passed to FW */
 625         lbs_deb_join(
 626                "ADHOC_J_CMD: BSSID = %s, SSID = '%s'\n",
 627                print_mac(mac, join_cmd->bss.bssid),
 628                join_cmd->bss.ssid);
 629
 630         /* failtimeout */
 631         join_cmd->failtimeout = cpu_to_le16(MRVDRV_ASSOCIATION_TIME_OUT);
 632
 633         /* probedelay */
 634         join_cmd->probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME);
 635
 636         adapter->curbssparams.channel = bss->channel;
 637
 638         /* Copy Data rates from the rates recorded in scan response */
 639         memset(join_cmd->bss.rates, 0, sizeof(join_cmd->bss.rates));
 640         ratesize = min_t(u16, sizeof(join_cmd->bss.rates), MAX_RATES);
 641         memcpy(join_cmd->bss.rates, bss->rates, ratesize);
 642         if (get_common_rates(adapter, join_cmd->bss.rates, &ratesize)) {
 643                 lbs_deb_join("ADHOC_J_CMD: get_common_rates returns error.\n");
 644                 ret = -1;
 645                 goto done;
 646         }
 647
 648         /* Copy the ad-hoc creating rates into Current BSS state structure */
 649         memset(&adapter->curbssparams.rates, 0, sizeof(adapter->curbssparams.rates));
 650         memcpy(&adapter->curbssparams.rates, join_cmd->bss.rates, ratesize);
 651
 652         /* Set MSB on basic rates as the firmware requires, but _after_
 653          * copying to current bss rates.
 654          */
 655         libertas_set_basic_rate_flags(join_cmd->bss.rates, ratesize);
 656
 657         join_cmd->bss.ssparamset.ibssparamset.atimwindow =
 658             cpu_to_le16(bss->atimwindow);
 659
 660         if (assoc_req->secinfo.wep_enabled) {
 661                 u16 tmp = le16_to_cpu(join_cmd->bss.capability);
 662                 tmp |= WLAN_CAPABILITY_PRIVACY;
 663                 join_cmd->bss.capability = cpu_to_le16(tmp);
 664         }
 665
 666         if (adapter->psmode == WLAN802_11POWERMODEMAX_PSP) {
 667                 /* wake up first */
 668                 __le32 Localpsmode;
 669
 670                 Localpsmode = cpu_to_le32(WLAN802_11POWERMODECAM);
 671                 ret = libertas_prepare_and_send_command(priv,
 672                                             CMD_802_11_PS_MODE,
 673                                             CMD_ACT_SET,
 674                                             0, 0, &Localpsmode);
 675
 676                 if (ret) {
 677                         ret = -1;
 678                         goto done;
 679                 }
 680         }
 681
 682         if (libertas_parse_dnld_countryinfo_11d(priv, bss)) {
 683                 ret = -1;
 684                 goto done;
 685         }
 686
 687         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_ad_hoc_join) +
 688                                 S_DS_GEN + cmdappendsize);
 689
 690 done:
 691         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 692         return ret;
 693 }
 694
 695 int libertas_ret_80211_associate(wlan_private * priv,
 696                               struct cmd_ds_command *resp)
 697 {
 698         wlan_adapter *adapter = priv->adapter;
 699         int ret = 0;
 700         union iwreq_data wrqu;
 701         struct ieeetypes_assocrsp *passocrsp;
 702         struct bss_descriptor * bss;
 703         u16 status_code;
 704
 705         lbs_deb_enter(LBS_DEB_JOIN);
 706
 707         if (!adapter->in_progress_assoc_req) {
 708                 lbs_deb_join("ASSOC_RESP: no in-progress association request\n");
 709                 ret = -1;
 710                 goto done;
 711         }
 712         bss = &adapter->in_progress_assoc_req->bss;
 713
 714         passocrsp = (struct ieeetypes_assocrsp *) & resp->params;
 715
 716         /*
 717          * Older FW versions map the IEEE 802.11 Status Code in the association
 718          * response to the following values returned in passocrsp->statuscode:
 719          *
 720          *    IEEE Status Code                Marvell Status Code
 721          *    0                       ->      0x0000 ASSOC_RESULT_SUCCESS
 722          *    13                      ->      0x0004 ASSOC_RESULT_AUTH_REFUSED
 723          *    14                      ->      0x0004 ASSOC_RESULT_AUTH_REFUSED
 724          *    15                      ->      0x0004 ASSOC_RESULT_AUTH_REFUSED
 725          *    16                      ->      0x0004 ASSOC_RESULT_AUTH_REFUSED
 726          *    others                  ->      0x0003 ASSOC_RESULT_REFUSED
 727          *
 728          * Other response codes:
 729          *    0x0001 -> ASSOC_RESULT_INVALID_PARAMETERS (unused)
 730          *    0x0002 -> ASSOC_RESULT_TIMEOUT (internal timer expired waiting for
 731          *                                    association response from the AP)
 732          */
 733
 734         status_code = le16_to_cpu(passocrsp->statuscode);
 735         switch (status_code) {
 736         case 0x00:
 737                 lbs_deb_join("ASSOC_RESP: Association succeeded\n");
 738                 break;
 739         case 0x01:
 740                 lbs_deb_join("ASSOC_RESP: Association failed; invalid "
 741                              "parameters (status code %d)\n", status_code);
 742                 break;
 743         case 0x02:
 744                 lbs_deb_join("ASSOC_RESP: Association failed; internal timer "
 745                              "expired while waiting for the AP (status code %d)"
 746                              "\n", status_code);
 747                 break;
 748         case 0x03:
 749                 lbs_deb_join("ASSOC_RESP: Association failed; association "
 750                              "was refused by the AP (status code %d)\n",
 751                              status_code);
 752                 break;
 753         case 0x04:
 754                 lbs_deb_join("ASSOC_RESP: Association failed; authentication "
 755                              "was refused by the AP (status code %d)\n",
 756                              status_code);
 757                 break;
 758         default:
 759                 lbs_deb_join("ASSOC_RESP: Association failed; reason unknown "
 760                              "(status code %d)\n", status_code);
 761                 break;
 762         }
 763
 764         if (status_code) {
 765                 libertas_mac_event_disconnected(priv);
 766                 ret = -1;
 767                 goto done;
 768         }
 769
 770         lbs_deb_hex(LBS_DEB_JOIN, "ASSOC_RESP", (void *)&resp->params,
 771                 le16_to_cpu(resp->size) - S_DS_GEN);
 772
 773         /* Send a Media Connected event, according to the Spec */
 774         adapter->connect_status = LIBERTAS_CONNECTED;
 775
 776         lbs_deb_join("ASSOC_RESP: assocated to '%s'\n",
 777                      escape_essid(bss->ssid, bss->ssid_len));
 778
 779         /* Update current SSID and BSSID */
 780         memcpy(&adapter->curbssparams.ssid, &bss->ssid, IW_ESSID_MAX_SIZE);
 781         adapter->curbssparams.ssid_len = bss->ssid_len;
 782         memcpy(adapter->curbssparams.bssid, bss->bssid, ETH_ALEN);
 783
 784         lbs_deb_join("ASSOC_RESP: currentpacketfilter is %x\n",
 785                adapter->currentpacketfilter);
 786
 787         adapter->SNR[TYPE_RXPD][TYPE_AVG] = 0;
 788         adapter->NF[TYPE_RXPD][TYPE_AVG] = 0;
 789
 790         memset(adapter->rawSNR, 0x00, sizeof(adapter->rawSNR));
 791         memset(adapter->rawNF, 0x00, sizeof(adapter->rawNF));
 792         adapter->nextSNRNF = 0;
 793         adapter->numSNRNF = 0;
 794
 795         netif_carrier_on(priv->dev);
 796         netif_wake_queue(priv->dev);
 797
 798         if (priv->mesh_dev) {
 799                 netif_carrier_on(priv->mesh_dev);
 800                 netif_wake_queue(priv->mesh_dev);
 801         }
 802
 803         memcpy(wrqu.ap_addr.sa_data, adapter->curbssparams.bssid, ETH_ALEN);
 804         wrqu.ap_addr.sa_family = ARPHRD_ETHER;
 805         wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
 806
 807 done:
 808         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 809         return ret;
 810 }
 811
 812 int libertas_ret_80211_disassociate(wlan_private * priv,
 813                                  struct cmd_ds_command *resp)
 814 {
 815         lbs_deb_enter(LBS_DEB_JOIN);
 816
 817         libertas_mac_event_disconnected(priv);
 818
 819         lbs_deb_leave(LBS_DEB_JOIN);
 820         return 0;
 821 }
 822
 823 int libertas_ret_80211_ad_hoc_start(wlan_private * priv,
 824                                  struct cmd_ds_command *resp)
 825 {
 826         wlan_adapter *adapter = priv->adapter;
 827         int ret = 0;
 828         u16 command = le16_to_cpu(resp->command);
 829         u16 result = le16_to_cpu(resp->result);
 830         struct cmd_ds_802_11_ad_hoc_result *padhocresult;
 831         union iwreq_data wrqu;
 832         struct bss_descriptor *bss;
 833         DECLARE_MAC_BUF(mac);
 834
 835         lbs_deb_enter(LBS_DEB_JOIN);
 836
 837         padhocresult = &resp->params.result;
 838
 839         lbs_deb_join("ADHOC_RESP: size = %d\n", le16_to_cpu(resp->size));
 840         lbs_deb_join("ADHOC_RESP: command = %x\n", command);
 841         lbs_deb_join("ADHOC_RESP: result = %x\n", result);
 842
 843         if (!adapter->in_progress_assoc_req) {
 844                 lbs_deb_join("ADHOC_RESP: no in-progress association request\n");
 845                 ret = -1;
 846                 goto done;
 847         }
 848         bss = &adapter->in_progress_assoc_req->bss;
 849
 850         /*
 851          * Join result code 0 --> SUCCESS
 852          */
 853         if (result) {
 854                 lbs_deb_join("ADHOC_RESP: failed\n");
 855                 if (adapter->connect_status == LIBERTAS_CONNECTED) {
 856                         libertas_mac_event_disconnected(priv);
 857                 }
 858                 ret = -1;
 859                 goto done;
 860         }
 861
 862         /*
 863          * Now the join cmd should be successful
 864          * If BSSID has changed use SSID to compare instead of BSSID
 865          */
 866         lbs_deb_join("ADHOC_RESP: associated to '%s'\n",
 867                      escape_essid(bss->ssid, bss->ssid_len));
 868
 869         /* Send a Media Connected event, according to the Spec */
 870         adapter->connect_status = LIBERTAS_CONNECTED;
 871
 872         if (command == CMD_RET(CMD_802_11_AD_HOC_START)) {
 873                 /* Update the created network descriptor with the new BSSID */
 874                 memcpy(bss->bssid, padhocresult->bssid, ETH_ALEN);
 875         }
 876
 877         /* Set the BSSID from the joined/started descriptor */
 878         memcpy(&adapter->curbssparams.bssid, bss->bssid, ETH_ALEN);
 879
 880         /* Set the new SSID to current SSID */
 881         memcpy(&adapter->curbssparams.ssid, &bss->ssid, IW_ESSID_MAX_SIZE);
 882         adapter->curbssparams.ssid_len = bss->ssid_len;
 883
 884         netif_carrier_on(priv->dev);
 885         netif_wake_queue(priv->dev);
 886
 887         if (priv->mesh_dev) {
 888                 netif_carrier_on(priv->mesh_dev);
 889                 netif_wake_queue(priv->mesh_dev);
 890         }
 891
 892         memset(&wrqu, 0, sizeof(wrqu));
 893         memcpy(wrqu.ap_addr.sa_data, adapter->curbssparams.bssid, ETH_ALEN);
 894         wrqu.ap_addr.sa_family = ARPHRD_ETHER;
 895         wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
 896
 897         lbs_deb_join("ADHOC_RESP: - Joined/Started Ad Hoc\n");
 898         lbs_deb_join("ADHOC_RESP: channel = %d\n", adapter->curbssparams.channel);
 899         lbs_deb_join("ADHOC_RESP: BSSID = %s\n",
 900                      print_mac(mac, padhocresult->bssid));
 901
 902 done:
 903         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 904         return ret;
 905 }
 906
 907 int libertas_ret_80211_ad_hoc_stop(wlan_private * priv,
 908                                 struct cmd_ds_command *resp)
 909 {
 910         lbs_deb_enter(LBS_DEB_JOIN);
 911
 912         libertas_mac_event_disconnected(priv);
 913
 914         lbs_deb_leave(LBS_DEB_JOIN);
 915         return 0;
 916 }