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 /* Supported rates for ad-hoc B mode */
  21 static u8 adhoc_rates_b[5] = { 0x02, 0x04, 0x0b, 0x16, 0x00 };
  22
  23
  24 /**
  25  *  @brief This function finds common rates between rate1 and card rates.
  26  *
  27  * It will fill common rates in rate1 as output if found.
  28  *
  29  * NOTE: Setting the MSB of the basic rates need to be taken
  30  *   care, either before or after calling this function
  31  *
  32  *  @param adapter     A pointer to wlan_adapter structure
  33  *  @param rate1       the buffer which keeps input and output
  34  *  @param rate1_size  the size of rate1 buffer; new size of buffer on return
  35  *
  36  *  @return            0 or -1
  37  */
  38 static int get_common_rates(wlan_adapter * adapter, u8 * rates, u16 *rates_size)
  39 {
  40         u8 *card_rates = libertas_bg_rates;
  41         size_t num_card_rates = sizeof(libertas_bg_rates);
  42         int ret = 0, i, j;
  43         u8 tmp[30];
  44         size_t tmp_size = 0;
  45
  46         /* For each rate in card_rates that exists in rate1, copy to tmp */
  47         for (i = 0; card_rates[i] && (i < num_card_rates); i++) {
  48                 for (j = 0; rates[j] && (j < *rates_size); j++) {
  49                         if (rates[j] == card_rates[i])
  50                                 tmp[tmp_size++] = card_rates[i];
  51                 }
  52         }
  53
  54         lbs_deb_hex(LBS_DEB_JOIN, "AP rates    ", rates, *rates_size);
  55         lbs_deb_hex(LBS_DEB_JOIN, "card rates  ", card_rates, num_card_rates);
  56         lbs_deb_hex(LBS_DEB_JOIN, "common rates", tmp, tmp_size);
  57         lbs_deb_join("Tx datarate is currently 0x%X\n", adapter->cur_rate);
  58
  59         if (!adapter->auto_rate) {
  60                 for (i = 0; i < tmp_size; i++) {
  61                         if (tmp[i] == adapter->cur_rate)
  62                                 goto done;
  63                 }
  64                 lbs_pr_alert("Previously set fixed data rate %#x isn't "
  65                        "compatible with the network.\n", adapter->cur_rate);
  66                 ret = -1;
  67                 goto done;
  68         }
  69         ret = 0;
  70
  71 done:
  72         memset(rates, 0, *rates_size);
  73         *rates_size = min_t(int, tmp_size, *rates_size);
  74         memcpy(rates, tmp, *rates_size);
  75         return ret;
  76 }
  77
  78
  79 /**
  80  *  @brief Sets the MSB on basic rates as the firmware requires
  81  *
  82  * Scan through an array and set the MSB for basic data rates.
  83  *
  84  *  @param rates     buffer of data rates
  85  *  @param len       size of buffer
  86  */
  87 static void libertas_set_basic_rate_flags(u8 * rates, size_t len)
  88 {
  89         int i;
  90
  91         for (i = 0; i < len; i++) {
  92                 if (rates[i] == 0x02 || rates[i] == 0x04 ||
  93                     rates[i] == 0x0b || rates[i] == 0x16)
  94                         rates[i] |= 0x80;
  95         }
  96 }
  97
  98 /**
  99  *  @brief Unsets the MSB on basic rates
 100  *
 101  * Scan through an array and unset the MSB for basic data rates.
 102  *
 103  *  @param rates     buffer of data rates
 104  *  @param len       size of buffer
 105  */
 106 void libertas_unset_basic_rate_flags(u8 * rates, size_t len)
 107 {
 108         int i;
 109
 110         for (i = 0; i < len; i++)
 111                 rates[i] &= 0x7f;
 112 }
 113
 114
 115 /**
 116  *  @brief Associate to a specific BSS discovered in a scan
 117  *
 118  *  @param priv      A pointer to wlan_private structure
 119  *  @param pbssdesc  Pointer to the BSS descriptor to associate with.
 120  *
 121  *  @return          0-success, otherwise fail
 122  */
 123 int wlan_associate(wlan_private * priv, struct assoc_request * assoc_req)
 124 {
 125         wlan_adapter *adapter = priv->adapter;
 126         int ret;
 127
 128         lbs_deb_enter(LBS_DEB_JOIN);
 129
 130         ret = libertas_prepare_and_send_command(priv, CMD_802_11_AUTHENTICATE,
 131                                     0, CMD_OPTION_WAITFORRSP,
 132                                     0, assoc_req->bss.bssid);
 133
 134         if (ret)
 135                 goto done;
 136
 137         /* set preamble to firmware */
 138         if (   (adapter->capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
 139             && (assoc_req->bss.capability & WLAN_CAPABILITY_SHORT_PREAMBLE))
 140                 adapter->preamble = CMD_TYPE_SHORT_PREAMBLE;
 141         else
 142                 adapter->preamble = CMD_TYPE_LONG_PREAMBLE;
 143
 144         libertas_set_radio_control(priv);
 145
 146         ret = libertas_prepare_and_send_command(priv, CMD_802_11_ASSOCIATE,
 147                                     0, CMD_OPTION_WAITFORRSP, 0, assoc_req);
 148
 149 done:
 150         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 151         return ret;
 152 }
 153
 154 /**
 155  *  @brief Start an Adhoc Network
 156  *
 157  *  @param priv         A pointer to wlan_private structure
 158  *  @param adhocssid    The ssid of the Adhoc Network
 159  *  @return             0--success, -1--fail
 160  */
 161 int libertas_start_adhoc_network(wlan_private * priv, struct assoc_request * assoc_req)
 162 {
 163         wlan_adapter *adapter = priv->adapter;
 164         int ret = 0;
 165
 166         adapter->adhoccreate = 1;
 167
 168         if (adapter->capability & WLAN_CAPABILITY_SHORT_PREAMBLE) {
 169                 lbs_deb_join("AdhocStart: Short preamble\n");
 170                 adapter->preamble = CMD_TYPE_SHORT_PREAMBLE;
 171         } else {
 172                 lbs_deb_join("AdhocStart: Long preamble\n");
 173                 adapter->preamble = CMD_TYPE_LONG_PREAMBLE;
 174         }
 175
 176         libertas_set_radio_control(priv);
 177
 178         lbs_deb_join("AdhocStart: channel = %d\n", assoc_req->channel);
 179         lbs_deb_join("AdhocStart: band = %d\n", assoc_req->band);
 180
 181         ret = libertas_prepare_and_send_command(priv, CMD_802_11_AD_HOC_START,
 182                                     0, CMD_OPTION_WAITFORRSP, 0, assoc_req);
 183
 184         return ret;
 185 }
 186
 187 /**
 188  *  @brief Join an adhoc network found in a previous scan
 189  *
 190  *  @param priv         A pointer to wlan_private structure
 191  *  @param pbssdesc     Pointer to a BSS descriptor found in a previous scan
 192  *                      to attempt to join
 193  *
 194  *  @return             0--success, -1--fail
 195  */
 196 int libertas_join_adhoc_network(wlan_private * priv, struct assoc_request * assoc_req)
 197 {
 198         wlan_adapter *adapter = priv->adapter;
 199         struct bss_descriptor * bss = &assoc_req->bss;
 200         int ret = 0;
 201
 202         lbs_deb_join("%s: Current SSID '%s', ssid length %u\n",
 203                      __func__,
 204                      escape_essid(adapter->curbssparams.ssid,
 205                                   adapter->curbssparams.ssid_len),
 206                      adapter->curbssparams.ssid_len);
 207         lbs_deb_join("%s: requested ssid '%s', ssid length %u\n",
 208                      __func__, escape_essid(bss->ssid, bss->ssid_len),
 209                      bss->ssid_len);
 210
 211         /* check if the requested SSID is already joined */
 212         if (adapter->curbssparams.ssid_len
 213             && !libertas_ssid_cmp(adapter->curbssparams.ssid,
 214                                   adapter->curbssparams.ssid_len,
 215                                   bss->ssid, bss->ssid_len)
 216             && (adapter->mode == IW_MODE_ADHOC)) {
 217                 lbs_deb_join(
 218                        "ADHOC_J_CMD: New ad-hoc SSID is the same as current, "
 219                        "not attempting to re-join");
 220                 return -1;
 221         }
 222
 223         /* Use shortpreamble only when both creator and card supports
 224            short preamble */
 225         if (   !(bss->capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
 226             || !(adapter->capability & WLAN_CAPABILITY_SHORT_PREAMBLE)) {
 227                 lbs_deb_join("AdhocJoin: Long preamble\n");
 228                 adapter->preamble = CMD_TYPE_LONG_PREAMBLE;
 229         } else {
 230                 lbs_deb_join("AdhocJoin: Short preamble\n");
 231                 adapter->preamble = CMD_TYPE_SHORT_PREAMBLE;
 232         }
 233
 234         libertas_set_radio_control(priv);
 235
 236         lbs_deb_join("AdhocJoin: channel = %d\n", assoc_req->channel);
 237         lbs_deb_join("AdhocJoin: band = %c\n", assoc_req->band);
 238
 239         adapter->adhoccreate = 0;
 240
 241         ret = libertas_prepare_and_send_command(priv, CMD_802_11_AD_HOC_JOIN,
 242                                     0, CMD_OPTION_WAITFORRSP,
 243                                     OID_802_11_SSID, assoc_req);
 244
 245         return ret;
 246 }
 247
 248 int libertas_stop_adhoc_network(wlan_private * priv)
 249 {
 250         return libertas_prepare_and_send_command(priv, CMD_802_11_AD_HOC_STOP,
 251                                      0, CMD_OPTION_WAITFORRSP, 0, NULL);
 252 }
 253
 254 /**
 255  *  @brief Send Deauthentication Request
 256  *
 257  *  @param priv      A pointer to wlan_private structure
 258  *  @return          0--success, -1--fail
 259  */
 260 int libertas_send_deauthentication(wlan_private * priv)
 261 {
 262         return libertas_prepare_and_send_command(priv, CMD_802_11_DEAUTHENTICATE,
 263                                      0, CMD_OPTION_WAITFORRSP, 0, NULL);
 264 }
 265
 266 /**
 267  *  @brief This function prepares command of authenticate.
 268  *
 269  *  @param priv      A pointer to wlan_private structure
 270  *  @param cmd       A pointer to cmd_ds_command structure
 271  *  @param pdata_buf Void cast of pointer to a BSSID to authenticate with
 272  *
 273  *  @return         0 or -1
 274  */
 275 int libertas_cmd_80211_authenticate(wlan_private * priv,
 276                                  struct cmd_ds_command *cmd,
 277                                  void *pdata_buf)
 278 {
 279         wlan_adapter *adapter = priv->adapter;
 280         struct cmd_ds_802_11_authenticate *pauthenticate = &cmd->params.auth;
 281         int ret = -1;
 282         u8 *bssid = pdata_buf;
 283
 284         lbs_deb_enter(LBS_DEB_JOIN);
 285
 286         cmd->command = cpu_to_le16(CMD_802_11_AUTHENTICATE);
 287         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_authenticate)
 288                                 + S_DS_GEN);
 289
 290         /* translate auth mode to 802.11 defined wire value */
 291         switch (adapter->secinfo.auth_mode) {
 292         case IW_AUTH_ALG_OPEN_SYSTEM:
 293                 pauthenticate->authtype = 0x00;
 294                 break;
 295         case IW_AUTH_ALG_SHARED_KEY:
 296                 pauthenticate->authtype = 0x01;
 297                 break;
 298         case IW_AUTH_ALG_LEAP:
 299                 pauthenticate->authtype = 0x80;
 300                 break;
 301         default:
 302                 lbs_deb_join("AUTH_CMD: invalid auth alg 0x%X\n",
 303                              adapter->secinfo.auth_mode);
 304                 goto out;
 305         }
 306
 307         memcpy(pauthenticate->macaddr, bssid, ETH_ALEN);
 308
 309         lbs_deb_join("AUTH_CMD: BSSID is : " MAC_FMT " auth=0x%X\n",
 310                      MAC_ARG(bssid), pauthenticate->authtype);
 311         ret = 0;
 312
 313 out:
 314         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 315         return ret;
 316 }
 317
 318 int libertas_cmd_80211_deauthenticate(wlan_private * priv,
 319                                    struct cmd_ds_command *cmd)
 320 {
 321         wlan_adapter *adapter = priv->adapter;
 322         struct cmd_ds_802_11_deauthenticate *dauth = &cmd->params.deauth;
 323
 324         lbs_deb_enter(LBS_DEB_JOIN);
 325
 326         cmd->command = cpu_to_le16(CMD_802_11_DEAUTHENTICATE);
 327         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_deauthenticate) +
 328                              S_DS_GEN);
 329
 330         /* set AP MAC address */
 331         memmove(dauth->macaddr, adapter->curbssparams.bssid, ETH_ALEN);
 332
 333         /* Reason code 3 = Station is leaving */
 334 #define REASON_CODE_STA_LEAVING 3
 335         dauth->reasoncode = cpu_to_le16(REASON_CODE_STA_LEAVING);
 336
 337         lbs_deb_leave(LBS_DEB_JOIN);
 338         return 0;
 339 }
 340
 341 int libertas_cmd_80211_associate(wlan_private * priv,
 342                               struct cmd_ds_command *cmd, void *pdata_buf)
 343 {
 344         wlan_adapter *adapter = priv->adapter;
 345         struct cmd_ds_802_11_associate *passo = &cmd->params.associate;
 346         int ret = 0;
 347         struct assoc_request * assoc_req = pdata_buf;
 348         struct bss_descriptor * bss = &assoc_req->bss;
 349         u8 *pos;
 350         u16 tmpcap, tmplen;
 351         struct mrvlietypes_ssidparamset *ssid;
 352         struct mrvlietypes_phyparamset *phy;
 353         struct mrvlietypes_ssparamset *ss;
 354         struct mrvlietypes_ratesparamset *rates;
 355         struct mrvlietypes_rsnparamset *rsn;
 356
 357         lbs_deb_enter(LBS_DEB_JOIN);
 358
 359         pos = (u8 *) passo;
 360
 361         if (!adapter) {
 362                 ret = -1;
 363                 goto done;
 364         }
 365
 366         cmd->command = cpu_to_le16(CMD_802_11_ASSOCIATE);
 367
 368         memcpy(passo->peerstaaddr, bss->bssid, sizeof(passo->peerstaaddr));
 369         pos += sizeof(passo->peerstaaddr);
 370
 371         /* set the listen interval */
 372         passo->listeninterval = cpu_to_le16(MRVDRV_DEFAULT_LISTEN_INTERVAL);
 373
 374         pos += sizeof(passo->capability);
 375         pos += sizeof(passo->listeninterval);
 376         pos += sizeof(passo->bcnperiod);
 377         pos += sizeof(passo->dtimperiod);
 378
 379         ssid = (struct mrvlietypes_ssidparamset *) pos;
 380         ssid->header.type = cpu_to_le16(TLV_TYPE_SSID);
 381         tmplen = bss->ssid_len;
 382         ssid->header.len = cpu_to_le16(tmplen);
 383         memcpy(ssid->ssid, bss->ssid, tmplen);
 384         pos += sizeof(ssid->header) + tmplen;
 385
 386         phy = (struct mrvlietypes_phyparamset *) pos;
 387         phy->header.type = cpu_to_le16(TLV_TYPE_PHY_DS);
 388         tmplen = sizeof(phy->fh_ds.dsparamset);
 389         phy->header.len = cpu_to_le16(tmplen);
 390         memcpy(&phy->fh_ds.dsparamset,
 391                &bss->phyparamset.dsparamset.currentchan,
 392                tmplen);
 393         pos += sizeof(phy->header) + tmplen;
 394
 395         ss = (struct mrvlietypes_ssparamset *) pos;
 396         ss->header.type = cpu_to_le16(TLV_TYPE_CF);
 397         tmplen = sizeof(ss->cf_ibss.cfparamset);
 398         ss->header.len = cpu_to_le16(tmplen);
 399         pos += sizeof(ss->header) + tmplen;
 400
 401         rates = (struct mrvlietypes_ratesparamset *) pos;
 402         rates->header.type = cpu_to_le16(TLV_TYPE_RATES);
 403         memcpy(&rates->rates, &bss->rates, MAX_RATES);
 404         tmplen = MAX_RATES;
 405         if (get_common_rates(adapter, rates->rates, &tmplen)) {
 406                 ret = -1;
 407                 goto done;
 408         }
 409         pos += sizeof(rates->header) + tmplen;
 410         rates->header.len = cpu_to_le16(tmplen);
 411         lbs_deb_join("ASSOC_CMD: num rates = %u\n", tmplen);
 412
 413         /* Copy the infra. association rates into Current BSS state structure */
 414         memset(&adapter->curbssparams.rates, 0, sizeof(adapter->curbssparams.rates));
 415         memcpy(&adapter->curbssparams.rates, &rates->rates, tmplen);
 416
 417         /* Set MSB on basic rates as the firmware requires, but _after_
 418          * copying to current bss rates.
 419          */
 420         libertas_set_basic_rate_flags(rates->rates, tmplen);
 421
 422         if (assoc_req->secinfo.WPAenabled || assoc_req->secinfo.WPA2enabled) {
 423                 rsn = (struct mrvlietypes_rsnparamset *) pos;
 424                 /* WPA_IE or WPA2_IE */
 425                 rsn->header.type = cpu_to_le16((u16) assoc_req->wpa_ie[0]);
 426                 tmplen = (u16) assoc_req->wpa_ie[1];
 427                 rsn->header.len = cpu_to_le16(tmplen);
 428                 memcpy(rsn->rsnie, &assoc_req->wpa_ie[2], tmplen);
 429                 lbs_deb_hex(LBS_DEB_JOIN, "ASSOC_CMD: RSN IE", (u8 *) rsn,
 430                         sizeof(rsn->header) + tmplen);
 431                 pos += sizeof(rsn->header) + tmplen;
 432         }
 433
 434         /* update curbssparams */
 435         adapter->curbssparams.channel = bss->phyparamset.dsparamset.currentchan;
 436
 437         if (libertas_parse_dnld_countryinfo_11d(priv, bss)) {
 438                 ret = -1;
 439                 goto done;
 440         }
 441
 442         cmd->size = cpu_to_le16((u16) (pos - (u8 *) passo) + S_DS_GEN);
 443
 444         /* set the capability info */
 445         tmpcap = (bss->capability & CAPINFO_MASK);
 446         if (bss->mode == IW_MODE_INFRA)
 447                 tmpcap |= WLAN_CAPABILITY_ESS;
 448         passo->capability = cpu_to_le16(tmpcap);
 449         lbs_deb_join("ASSOC_CMD: capability=%4X CAPINFO_MASK=%4X\n",
 450                      tmpcap, CAPINFO_MASK);
 451
 452 done:
 453         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 454         return ret;
 455 }
 456
 457 int libertas_cmd_80211_ad_hoc_start(wlan_private * priv,
 458                                  struct cmd_ds_command *cmd, void *pdata_buf)
 459 {
 460         wlan_adapter *adapter = priv->adapter;
 461         struct cmd_ds_802_11_ad_hoc_start *adhs = &cmd->params.ads;
 462         int ret = 0;
 463         int cmdappendsize = 0;
 464         struct assoc_request * assoc_req = pdata_buf;
 465         u16 tmpcap = 0;
 466         size_t ratesize = 0;
 467
 468         lbs_deb_enter(LBS_DEB_JOIN);
 469
 470         if (!adapter) {
 471                 ret = -1;
 472                 goto done;
 473         }
 474
 475         cmd->command = cpu_to_le16(CMD_802_11_AD_HOC_START);
 476
 477         /*
 478          * Fill in the parameters for 2 data structures:
 479          *   1. cmd_ds_802_11_ad_hoc_start command
 480          *   2. adapter->scantable[i]
 481          *
 482          * Driver will fill up SSID, bsstype,IBSS param, Physical Param,
 483          *   probe delay, and cap info.
 484          *
 485          * Firmware will fill up beacon period, DTIM, Basic rates
 486          *   and operational rates.
 487          */
 488
 489         memset(adhs->ssid, 0, IW_ESSID_MAX_SIZE);
 490         memcpy(adhs->ssid, assoc_req->ssid, assoc_req->ssid_len);
 491
 492         lbs_deb_join("ADHOC_S_CMD: SSID '%s', ssid length %u\n",
 493                      escape_essid(assoc_req->ssid, assoc_req->ssid_len),
 494                      assoc_req->ssid_len);
 495
 496         /* set the BSS type */
 497         adhs->bsstype = CMD_BSS_TYPE_IBSS;
 498         adapter->mode = IW_MODE_ADHOC;
 499         adhs->beaconperiod = cpu_to_le16(MRVDRV_BEACON_INTERVAL);
 500
 501         /* set Physical param set */
 502 #define DS_PARA_IE_ID   3
 503 #define DS_PARA_IE_LEN  1
 504
 505         adhs->phyparamset.dsparamset.elementid = DS_PARA_IE_ID;
 506         adhs->phyparamset.dsparamset.len = DS_PARA_IE_LEN;
 507
 508         WARN_ON(!assoc_req->channel);
 509
 510         lbs_deb_join("ADHOC_S_CMD: Creating ADHOC on channel %d\n",
 511                      assoc_req->channel);
 512
 513         adhs->phyparamset.dsparamset.currentchan = assoc_req->channel;
 514
 515         /* set IBSS param set */
 516 #define IBSS_PARA_IE_ID   6
 517 #define IBSS_PARA_IE_LEN  2
 518
 519         adhs->ssparamset.ibssparamset.elementid = IBSS_PARA_IE_ID;
 520         adhs->ssparamset.ibssparamset.len = IBSS_PARA_IE_LEN;
 521         adhs->ssparamset.ibssparamset.atimwindow = 0;
 522
 523         /* set capability info */
 524         tmpcap = WLAN_CAPABILITY_IBSS;
 525         if (assoc_req->secinfo.wep_enabled) {
 526                 lbs_deb_join("ADHOC_S_CMD: WEP enabled, setting privacy on\n");
 527                 tmpcap |= WLAN_CAPABILITY_PRIVACY;
 528         } else {
 529                 lbs_deb_join("ADHOC_S_CMD: WEP disabled, setting privacy off\n");
 530         }
 531         adhs->capability = cpu_to_le16(tmpcap);
 532
 533         /* probedelay */
 534         adhs->probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME);
 535
 536         memset(adhs->rates, 0, sizeof(adhs->rates));
 537         ratesize = min(sizeof(adhs->rates), sizeof(adhoc_rates_b));
 538         memcpy(adhs->rates, adhoc_rates_b, ratesize);
 539
 540         /* Copy the ad-hoc creating rates into Current BSS state structure */
 541         memset(&adapter->curbssparams.rates, 0, sizeof(adapter->curbssparams.rates));
 542         memcpy(&adapter->curbssparams.rates, &adhs->rates, ratesize);
 543
 544         /* Set MSB on basic rates as the firmware requires, but _after_
 545          * copying to current bss rates.
 546          */
 547         libertas_set_basic_rate_flags(adhs->rates, ratesize);
 548
 549         lbs_deb_join("ADHOC_S_CMD: rates=%02x %02x %02x %02x \n",
 550                adhs->rates[0], adhs->rates[1], adhs->rates[2], adhs->rates[3]);
 551
 552         lbs_deb_join("ADHOC_S_CMD: AD HOC Start command is ready\n");
 553
 554         if (libertas_create_dnld_countryinfo_11d(priv)) {
 555                 lbs_deb_join("ADHOC_S_CMD: dnld_countryinfo_11d failed\n");
 556                 ret = -1;
 557                 goto done;
 558         }
 559
 560         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_ad_hoc_start) +
 561                                 S_DS_GEN + cmdappendsize);
 562
 563         ret = 0;
 564 done:
 565         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 566         return ret;
 567 }
 568
 569 int libertas_cmd_80211_ad_hoc_stop(wlan_private * priv,
 570                                 struct cmd_ds_command *cmd)
 571 {
 572         cmd->command = cpu_to_le16(CMD_802_11_AD_HOC_STOP);
 573         cmd->size = cpu_to_le16(S_DS_GEN);
 574
 575         return 0;
 576 }
 577
 578 int libertas_cmd_80211_ad_hoc_join(wlan_private * priv,
 579                                 struct cmd_ds_command *cmd, void *pdata_buf)
 580 {
 581         wlan_adapter *adapter = priv->adapter;
 582         struct cmd_ds_802_11_ad_hoc_join *join_cmd = &cmd->params.adj;
 583         struct assoc_request * assoc_req = pdata_buf;
 584         struct bss_descriptor *bss = &assoc_req->bss;
 585         int cmdappendsize = 0;
 586         int ret = 0;
 587         u16 ratesize = 0;
 588
 589         lbs_deb_enter(LBS_DEB_JOIN);
 590
 591         cmd->command = cpu_to_le16(CMD_802_11_AD_HOC_JOIN);
 592
 593         join_cmd->bss.type = CMD_BSS_TYPE_IBSS;
 594         join_cmd->bss.beaconperiod = cpu_to_le16(bss->beaconperiod);
 595
 596         memcpy(&join_cmd->bss.bssid, &bss->bssid, ETH_ALEN);
 597         memcpy(&join_cmd->bss.ssid, &bss->ssid, bss->ssid_len);
 598
 599         memcpy(&join_cmd->bss.phyparamset, &bss->phyparamset,
 600                sizeof(union ieeetypes_phyparamset));
 601
 602         memcpy(&join_cmd->bss.ssparamset, &bss->ssparamset,
 603                sizeof(union IEEEtypes_ssparamset));
 604
 605         join_cmd->bss.capability = cpu_to_le16(bss->capability & CAPINFO_MASK);
 606         lbs_deb_join("ADHOC_J_CMD: tmpcap=%4X CAPINFO_MASK=%4X\n",
 607                bss->capability, CAPINFO_MASK);
 608
 609         /* information on BSSID descriptor passed to FW */
 610         lbs_deb_join(
 611                "ADHOC_J_CMD: BSSID = " MAC_FMT ", SSID = '%s'\n",
 612                MAC_ARG(join_cmd->bss.bssid), join_cmd->bss.ssid);
 613
 614         /* failtimeout */
 615         join_cmd->failtimeout = cpu_to_le16(MRVDRV_ASSOCIATION_TIME_OUT);
 616
 617         /* probedelay */
 618         join_cmd->probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME);
 619
 620         adapter->curbssparams.channel = bss->channel;
 621
 622         /* Copy Data rates from the rates recorded in scan response */
 623         memset(join_cmd->bss.rates, 0, sizeof(join_cmd->bss.rates));
 624         ratesize = min_t(u16, sizeof(join_cmd->bss.rates), MAX_RATES);
 625         memcpy(join_cmd->bss.rates, bss->rates, ratesize);
 626         if (get_common_rates(adapter, join_cmd->bss.rates, &ratesize)) {
 627                 lbs_deb_join("ADHOC_J_CMD: get_common_rates returns error.\n");
 628                 ret = -1;
 629                 goto done;
 630         }
 631
 632         /* Copy the ad-hoc creating rates into Current BSS state structure */
 633         memset(&adapter->curbssparams.rates, 0, sizeof(adapter->curbssparams.rates));
 634         memcpy(&adapter->curbssparams.rates, join_cmd->bss.rates, ratesize);
 635
 636         /* Set MSB on basic rates as the firmware requires, but _after_
 637          * copying to current bss rates.
 638          */
 639         libertas_set_basic_rate_flags(join_cmd->bss.rates, ratesize);
 640
 641         join_cmd->bss.ssparamset.ibssparamset.atimwindow =
 642             cpu_to_le16(bss->atimwindow);
 643
 644         if (assoc_req->secinfo.wep_enabled) {
 645                 u16 tmp = le16_to_cpu(join_cmd->bss.capability);
 646                 tmp |= WLAN_CAPABILITY_PRIVACY;
 647                 join_cmd->bss.capability = cpu_to_le16(tmp);
 648         }
 649
 650         if (adapter->psmode == WLAN802_11POWERMODEMAX_PSP) {
 651                 /* wake up first */
 652                 __le32 Localpsmode;
 653
 654                 Localpsmode = cpu_to_le32(WLAN802_11POWERMODECAM);
 655                 ret = libertas_prepare_and_send_command(priv,
 656                                             CMD_802_11_PS_MODE,
 657                                             CMD_ACT_SET,
 658                                             0, 0, &Localpsmode);
 659
 660                 if (ret) {
 661                         ret = -1;
 662                         goto done;
 663                 }
 664         }
 665
 666         if (libertas_parse_dnld_countryinfo_11d(priv, bss)) {
 667                 ret = -1;
 668                 goto done;
 669         }
 670
 671         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_ad_hoc_join) +
 672                                 S_DS_GEN + cmdappendsize);
 673
 674 done:
 675         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 676         return ret;
 677 }
 678
 679 int libertas_ret_80211_associate(wlan_private * priv,
 680                               struct cmd_ds_command *resp)
 681 {
 682         wlan_adapter *adapter = priv->adapter;
 683         int ret = 0;
 684         union iwreq_data wrqu;
 685         struct ieeetypes_assocrsp *passocrsp;
 686         struct bss_descriptor * bss;
 687
 688         lbs_deb_enter(LBS_DEB_JOIN);
 689
 690         if (!adapter->in_progress_assoc_req) {
 691                 lbs_deb_join("ASSOC_RESP: no in-progress association request\n");
 692                 ret = -1;
 693                 goto done;
 694         }
 695         bss = &adapter->in_progress_assoc_req->bss;
 696
 697         passocrsp = (struct ieeetypes_assocrsp *) & resp->params;
 698
 699         if (le16_to_cpu(passocrsp->statuscode)) {
 700                 libertas_mac_event_disconnected(priv);
 701
 702                 lbs_deb_join("ASSOC_RESP: Association failed, status code = %d\n",
 703                              le16_to_cpu(passocrsp->statuscode));
 704
 705                 ret = -1;
 706                 goto done;
 707         }
 708
 709         lbs_deb_hex(LBS_DEB_JOIN, "ASSOC_RESP", (void *)&resp->params,
 710                 le16_to_cpu(resp->size) - S_DS_GEN);
 711
 712         /* Send a Media Connected event, according to the Spec */
 713         adapter->connect_status = LIBERTAS_CONNECTED;
 714
 715         lbs_deb_join("ASSOC_RESP: assocated to '%s'\n",
 716                      escape_essid(bss->ssid, bss->ssid_len));
 717
 718         /* Update current SSID and BSSID */
 719         memcpy(&adapter->curbssparams.ssid, &bss->ssid, IW_ESSID_MAX_SIZE);
 720         adapter->curbssparams.ssid_len = bss->ssid_len;
 721         memcpy(adapter->curbssparams.bssid, bss->bssid, ETH_ALEN);
 722
 723         lbs_deb_join("ASSOC_RESP: currentpacketfilter is %x\n",
 724                adapter->currentpacketfilter);
 725
 726         adapter->SNR[TYPE_RXPD][TYPE_AVG] = 0;
 727         adapter->NF[TYPE_RXPD][TYPE_AVG] = 0;
 728
 729         memset(adapter->rawSNR, 0x00, sizeof(adapter->rawSNR));
 730         memset(adapter->rawNF, 0x00, sizeof(adapter->rawNF));
 731         adapter->nextSNRNF = 0;
 732         adapter->numSNRNF = 0;
 733
 734         netif_carrier_on(priv->dev);
 735         netif_wake_queue(priv->dev);
 736
 737         if (priv->mesh_dev) {
 738                 netif_carrier_on(priv->mesh_dev);
 739                 netif_wake_queue(priv->mesh_dev);
 740         }
 741
 742         lbs_deb_join("ASSOC_RESP: Associated \n");
 743
 744         memcpy(wrqu.ap_addr.sa_data, adapter->curbssparams.bssid, ETH_ALEN);
 745         wrqu.ap_addr.sa_family = ARPHRD_ETHER;
 746         wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
 747
 748 done:
 749         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 750         return ret;
 751 }
 752
 753 int libertas_ret_80211_disassociate(wlan_private * priv,
 754                                  struct cmd_ds_command *resp)
 755 {
 756         lbs_deb_enter(LBS_DEB_JOIN);
 757
 758         libertas_mac_event_disconnected(priv);
 759
 760         lbs_deb_leave(LBS_DEB_JOIN);
 761         return 0;
 762 }
 763
 764 int libertas_ret_80211_ad_hoc_start(wlan_private * priv,
 765                                  struct cmd_ds_command *resp)
 766 {
 767         wlan_adapter *adapter = priv->adapter;
 768         int ret = 0;
 769         u16 command = le16_to_cpu(resp->command);
 770         u16 result = le16_to_cpu(resp->result);
 771         struct cmd_ds_802_11_ad_hoc_result *padhocresult;
 772         union iwreq_data wrqu;
 773         struct bss_descriptor *bss;
 774
 775         lbs_deb_enter(LBS_DEB_JOIN);
 776
 777         padhocresult = &resp->params.result;
 778
 779         lbs_deb_join("ADHOC_RESP: size = %d\n", le16_to_cpu(resp->size));
 780         lbs_deb_join("ADHOC_RESP: command = %x\n", command);
 781         lbs_deb_join("ADHOC_RESP: result = %x\n", result);
 782
 783         if (!adapter->in_progress_assoc_req) {
 784                 lbs_deb_join("ADHOC_RESP: no in-progress association request\n");
 785                 ret = -1;
 786                 goto done;
 787         }
 788         bss = &adapter->in_progress_assoc_req->bss;
 789
 790         /*
 791          * Join result code 0 --> SUCCESS
 792          */
 793         if (result) {
 794                 lbs_deb_join("ADHOC_RESP: failed\n");
 795                 if (adapter->connect_status == LIBERTAS_CONNECTED) {
 796                         libertas_mac_event_disconnected(priv);
 797                 }
 798                 ret = -1;
 799                 goto done;
 800         }
 801
 802         /*
 803          * Now the join cmd should be successful
 804          * If BSSID has changed use SSID to compare instead of BSSID
 805          */
 806         lbs_deb_join("ADHOC_RESP: associated to '%s'\n",
 807                      escape_essid(bss->ssid, bss->ssid_len));
 808
 809         /* Send a Media Connected event, according to the Spec */
 810         adapter->connect_status = LIBERTAS_CONNECTED;
 811
 812         if (command == CMD_RET(CMD_802_11_AD_HOC_START)) {
 813                 /* Update the created network descriptor with the new BSSID */
 814                 memcpy(bss->bssid, padhocresult->bssid, ETH_ALEN);
 815         }
 816
 817         /* Set the BSSID from the joined/started descriptor */
 818         memcpy(&adapter->curbssparams.bssid, bss->bssid, ETH_ALEN);
 819
 820         /* Set the new SSID to current SSID */
 821         memcpy(&adapter->curbssparams.ssid, &bss->ssid, IW_ESSID_MAX_SIZE);
 822         adapter->curbssparams.ssid_len = bss->ssid_len;
 823
 824         netif_carrier_on(priv->dev);
 825         netif_wake_queue(priv->dev);
 826
 827         if (priv->mesh_dev) {
 828                 netif_carrier_on(priv->mesh_dev);
 829                 netif_wake_queue(priv->mesh_dev);
 830         }
 831
 832         memset(&wrqu, 0, sizeof(wrqu));
 833         memcpy(wrqu.ap_addr.sa_data, adapter->curbssparams.bssid, ETH_ALEN);
 834         wrqu.ap_addr.sa_family = ARPHRD_ETHER;
 835         wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
 836
 837         lbs_deb_join("ADHOC_RESP: - Joined/Started Ad Hoc\n");
 838         lbs_deb_join("ADHOC_RESP: channel = %d\n", adapter->curbssparams.channel);
 839         lbs_deb_join("ADHOC_RESP: BSSID = " MAC_FMT "\n",
 840                MAC_ARG(padhocresult->bssid));
 841
 842 done:
 843         lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
 844         return ret;
 845 }
 846
 847 int libertas_ret_80211_ad_hoc_stop(wlan_private * priv,
 848                                 struct cmd_ds_command *resp)
 849 {
 850         lbs_deb_enter(LBS_DEB_JOIN);
 851
 852         libertas_mac_event_disconnected(priv);
 853
 854         lbs_deb_leave(LBS_DEB_JOIN);
 855         return 0;
 856 }