linux/drivers/net/wireless/libertas/wext.c
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   1/**
   2  * This file contains ioctl functions
   3  */
   4#include <linux/ctype.h>
   5#include <linux/delay.h>
   6#include <linux/if.h>
   7#include <linux/if_arp.h>
   8#include <linux/wireless.h>
   9#include <linux/bitops.h>
  10
  11#include <net/ieee80211.h>
  12#include <net/iw_handler.h>
  13
  14#include "host.h"
  15#include "radiotap.h"
  16#include "decl.h"
  17#include "defs.h"
  18#include "dev.h"
  19#include "join.h"
  20#include "wext.h"
  21#include "assoc.h"
  22
  23
  24/**
  25 *  @brief Find the channel frequency power info with specific channel
  26 *
  27 *  @param adapter      A pointer to wlan_adapter structure
  28 *  @param band         it can be BAND_A, BAND_G or BAND_B
  29 *  @param channel      the channel for looking
  30 *  @return             A pointer to struct chan_freq_power structure or NULL if not find.
  31 */
  32struct chan_freq_power *libertas_find_cfp_by_band_and_channel(wlan_adapter * adapter,
  33                                                 u8 band, u16 channel)
  34{
  35        struct chan_freq_power *cfp = NULL;
  36        struct region_channel *rc;
  37        int count = sizeof(adapter->region_channel) /
  38            sizeof(adapter->region_channel[0]);
  39        int i, j;
  40
  41        for (j = 0; !cfp && (j < count); j++) {
  42                rc = &adapter->region_channel[j];
  43
  44                if (adapter->enable11d)
  45                        rc = &adapter->universal_channel[j];
  46                if (!rc->valid || !rc->CFP)
  47                        continue;
  48                if (rc->band != band)
  49                        continue;
  50                for (i = 0; i < rc->nrcfp; i++) {
  51                        if (rc->CFP[i].channel == channel) {
  52                                cfp = &rc->CFP[i];
  53                                break;
  54                        }
  55                }
  56        }
  57
  58        if (!cfp && channel)
  59                lbs_deb_wext("libertas_find_cfp_by_band_and_channel: can't find "
  60                       "cfp by band %d / channel %d\n", band, channel);
  61
  62        return cfp;
  63}
  64
  65/**
  66 *  @brief Find the channel frequency power info with specific frequency
  67 *
  68 *  @param adapter      A pointer to wlan_adapter structure
  69 *  @param band         it can be BAND_A, BAND_G or BAND_B
  70 *  @param freq         the frequency for looking
  71 *  @return             A pointer to struct chan_freq_power structure or NULL if not find.
  72 */
  73static struct chan_freq_power *find_cfp_by_band_and_freq(wlan_adapter * adapter,
  74                                                     u8 band, u32 freq)
  75{
  76        struct chan_freq_power *cfp = NULL;
  77        struct region_channel *rc;
  78        int count = sizeof(adapter->region_channel) /
  79            sizeof(adapter->region_channel[0]);
  80        int i, j;
  81
  82        for (j = 0; !cfp && (j < count); j++) {
  83                rc = &adapter->region_channel[j];
  84
  85                if (adapter->enable11d)
  86                        rc = &adapter->universal_channel[j];
  87                if (!rc->valid || !rc->CFP)
  88                        continue;
  89                if (rc->band != band)
  90                        continue;
  91                for (i = 0; i < rc->nrcfp; i++) {
  92                        if (rc->CFP[i].freq == freq) {
  93                                cfp = &rc->CFP[i];
  94                                break;
  95                        }
  96                }
  97        }
  98
  99        if (!cfp && freq)
 100                lbs_deb_wext("find_cfp_by_band_and_freql: can't find cfp by "
 101                       "band %d / freq %d\n", band, freq);
 102
 103        return cfp;
 104}
 105
 106
 107/**
 108 *  @brief Set Radio On/OFF
 109 *
 110 *  @param priv                 A pointer to wlan_private structure
 111 *  @option                     Radio Option
 112 *  @return                     0 --success, otherwise fail
 113 */
 114static int wlan_radio_ioctl(wlan_private * priv, u8 option)
 115{
 116        int ret = 0;
 117        wlan_adapter *adapter = priv->adapter;
 118
 119        lbs_deb_enter(LBS_DEB_WEXT);
 120
 121        if (adapter->radioon != option) {
 122                lbs_deb_wext("switching radio %s\n", option ? "on" : "off");
 123                adapter->radioon = option;
 124
 125                ret = libertas_prepare_and_send_command(priv,
 126                                            CMD_802_11_RADIO_CONTROL,
 127                                            CMD_ACT_SET,
 128                                            CMD_OPTION_WAITFORRSP, 0, NULL);
 129        }
 130
 131        lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
 132        return ret;
 133}
 134
 135/**
 136 *  @brief Copy active data rates based on adapter mode and status
 137 *
 138 *  @param adapter              A pointer to wlan_adapter structure
 139 *  @param rate                 The buf to return the active rates
 140 */
 141static void copy_active_data_rates(wlan_adapter * adapter, u8 * rates)
 142{
 143        lbs_deb_enter(LBS_DEB_WEXT);
 144
 145        if (adapter->connect_status != LIBERTAS_CONNECTED)
 146                memcpy(rates, libertas_bg_rates, MAX_RATES);
 147        else
 148                memcpy(rates, adapter->curbssparams.rates, MAX_RATES);
 149
 150        lbs_deb_leave(LBS_DEB_WEXT);
 151}
 152
 153static int wlan_get_name(struct net_device *dev, struct iw_request_info *info,
 154                         char *cwrq, char *extra)
 155{
 156
 157        lbs_deb_enter(LBS_DEB_WEXT);
 158
 159        /* We could add support for 802.11n here as needed. Jean II */
 160        snprintf(cwrq, IFNAMSIZ, "IEEE 802.11b/g");
 161
 162        lbs_deb_leave(LBS_DEB_WEXT);
 163        return 0;
 164}
 165
 166static int wlan_get_freq(struct net_device *dev, struct iw_request_info *info,
 167                         struct iw_freq *fwrq, char *extra)
 168{
 169        wlan_private *priv = dev->priv;
 170        wlan_adapter *adapter = priv->adapter;
 171        struct chan_freq_power *cfp;
 172
 173        lbs_deb_enter(LBS_DEB_WEXT);
 174
 175        cfp = libertas_find_cfp_by_band_and_channel(adapter, 0,
 176                                           adapter->curbssparams.channel);
 177
 178        if (!cfp) {
 179                if (adapter->curbssparams.channel)
 180                        lbs_deb_wext("invalid channel %d\n",
 181                               adapter->curbssparams.channel);
 182                return -EINVAL;
 183        }
 184
 185        fwrq->m = (long)cfp->freq * 100000;
 186        fwrq->e = 1;
 187
 188        lbs_deb_wext("freq %u\n", fwrq->m);
 189        lbs_deb_leave(LBS_DEB_WEXT);
 190        return 0;
 191}
 192
 193static int wlan_get_wap(struct net_device *dev, struct iw_request_info *info,
 194                        struct sockaddr *awrq, char *extra)
 195{
 196        wlan_private *priv = dev->priv;
 197        wlan_adapter *adapter = priv->adapter;
 198
 199        lbs_deb_enter(LBS_DEB_WEXT);
 200
 201        if (adapter->connect_status == LIBERTAS_CONNECTED) {
 202                memcpy(awrq->sa_data, adapter->curbssparams.bssid, ETH_ALEN);
 203        } else {
 204                memset(awrq->sa_data, 0, ETH_ALEN);
 205        }
 206        awrq->sa_family = ARPHRD_ETHER;
 207
 208        lbs_deb_leave(LBS_DEB_WEXT);
 209        return 0;
 210}
 211
 212static int wlan_set_nick(struct net_device *dev, struct iw_request_info *info,
 213                         struct iw_point *dwrq, char *extra)
 214{
 215        wlan_private *priv = dev->priv;
 216        wlan_adapter *adapter = priv->adapter;
 217
 218        lbs_deb_enter(LBS_DEB_WEXT);
 219
 220        /*
 221         * Check the size of the string
 222         */
 223
 224        if (dwrq->length > 16) {
 225                return -E2BIG;
 226        }
 227
 228        mutex_lock(&adapter->lock);
 229        memset(adapter->nodename, 0, sizeof(adapter->nodename));
 230        memcpy(adapter->nodename, extra, dwrq->length);
 231        mutex_unlock(&adapter->lock);
 232
 233        lbs_deb_leave(LBS_DEB_WEXT);
 234        return 0;
 235}
 236
 237static int wlan_get_nick(struct net_device *dev, struct iw_request_info *info,
 238                         struct iw_point *dwrq, char *extra)
 239{
 240        wlan_private *priv = dev->priv;
 241        wlan_adapter *adapter = priv->adapter;
 242
 243        lbs_deb_enter(LBS_DEB_WEXT);
 244
 245        dwrq->length = strlen(adapter->nodename);
 246        memcpy(extra, adapter->nodename, dwrq->length);
 247        extra[dwrq->length] = '\0';
 248
 249        dwrq->flags = 1;        /* active */
 250
 251        lbs_deb_leave(LBS_DEB_WEXT);
 252        return 0;
 253}
 254
 255static int mesh_get_nick(struct net_device *dev, struct iw_request_info *info,
 256                         struct iw_point *dwrq, char *extra)
 257{
 258        wlan_private *priv = dev->priv;
 259        wlan_adapter *adapter = priv->adapter;
 260
 261        lbs_deb_enter(LBS_DEB_WEXT);
 262
 263        /* Use nickname to indicate that mesh is on */
 264
 265        if (adapter->connect_status == LIBERTAS_CONNECTED) {
 266                strncpy(extra, "Mesh", 12);
 267                extra[12] = '\0';
 268                dwrq->length = strlen(extra);
 269        }
 270
 271        else {
 272                extra[0] = '\0';
 273                dwrq->length = 0;
 274        }
 275
 276        lbs_deb_leave(LBS_DEB_WEXT);
 277        return 0;
 278}
 279
 280static int wlan_set_rts(struct net_device *dev, struct iw_request_info *info,
 281                        struct iw_param *vwrq, char *extra)
 282{
 283        int ret = 0;
 284        wlan_private *priv = dev->priv;
 285        wlan_adapter *adapter = priv->adapter;
 286        u32 rthr = vwrq->value;
 287
 288        lbs_deb_enter(LBS_DEB_WEXT);
 289
 290        if (vwrq->disabled) {
 291                adapter->rtsthsd = rthr = MRVDRV_RTS_MAX_VALUE;
 292        } else {
 293                if (rthr < MRVDRV_RTS_MIN_VALUE || rthr > MRVDRV_RTS_MAX_VALUE)
 294                        return -EINVAL;
 295                adapter->rtsthsd = rthr;
 296        }
 297
 298        ret = libertas_prepare_and_send_command(priv, CMD_802_11_SNMP_MIB,
 299                                    CMD_ACT_SET, CMD_OPTION_WAITFORRSP,
 300                                    OID_802_11_RTS_THRESHOLD, &rthr);
 301
 302        lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
 303        return ret;
 304}
 305
 306static int wlan_get_rts(struct net_device *dev, struct iw_request_info *info,
 307                        struct iw_param *vwrq, char *extra)
 308{
 309        int ret = 0;
 310        wlan_private *priv = dev->priv;
 311        wlan_adapter *adapter = priv->adapter;
 312
 313        lbs_deb_enter(LBS_DEB_WEXT);
 314
 315        adapter->rtsthsd = 0;
 316        ret = libertas_prepare_and_send_command(priv, CMD_802_11_SNMP_MIB,
 317                                    CMD_ACT_GET, CMD_OPTION_WAITFORRSP,
 318                                    OID_802_11_RTS_THRESHOLD, NULL);
 319        if (ret)
 320                goto out;
 321
 322        vwrq->value = adapter->rtsthsd;
 323        vwrq->disabled = ((vwrq->value < MRVDRV_RTS_MIN_VALUE)
 324                          || (vwrq->value > MRVDRV_RTS_MAX_VALUE));
 325        vwrq->fixed = 1;
 326
 327out:
 328        lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
 329        return ret;
 330}
 331
 332static int wlan_set_frag(struct net_device *dev, struct iw_request_info *info,
 333                         struct iw_param *vwrq, char *extra)
 334{
 335        int ret = 0;
 336        u32 fthr = vwrq->value;
 337        wlan_private *priv = dev->priv;
 338        wlan_adapter *adapter = priv->adapter;
 339
 340        lbs_deb_enter(LBS_DEB_WEXT);
 341
 342        if (vwrq->disabled) {
 343                adapter->fragthsd = fthr = MRVDRV_FRAG_MAX_VALUE;
 344        } else {
 345                if (fthr < MRVDRV_FRAG_MIN_VALUE
 346                    || fthr > MRVDRV_FRAG_MAX_VALUE)
 347                        return -EINVAL;
 348                adapter->fragthsd = fthr;
 349        }
 350
 351        ret = libertas_prepare_and_send_command(priv, CMD_802_11_SNMP_MIB,
 352                                    CMD_ACT_SET, CMD_OPTION_WAITFORRSP,
 353                                    OID_802_11_FRAGMENTATION_THRESHOLD, &fthr);
 354
 355        lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
 356        return ret;
 357}
 358
 359static int wlan_get_frag(struct net_device *dev, struct iw_request_info *info,
 360                         struct iw_param *vwrq, char *extra)
 361{
 362        int ret = 0;
 363        wlan_private *priv = dev->priv;
 364        wlan_adapter *adapter = priv->adapter;
 365
 366        lbs_deb_enter(LBS_DEB_WEXT);
 367
 368        adapter->fragthsd = 0;
 369        ret = libertas_prepare_and_send_command(priv,
 370                                    CMD_802_11_SNMP_MIB,
 371                                    CMD_ACT_GET, CMD_OPTION_WAITFORRSP,
 372                                    OID_802_11_FRAGMENTATION_THRESHOLD, NULL);
 373        if (ret)
 374                goto out;
 375
 376        vwrq->value = adapter->fragthsd;
 377        vwrq->disabled = ((vwrq->value < MRVDRV_FRAG_MIN_VALUE)
 378                          || (vwrq->value > MRVDRV_FRAG_MAX_VALUE));
 379        vwrq->fixed = 1;
 380
 381out:
 382        lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
 383        return ret;
 384}
 385
 386static int wlan_get_mode(struct net_device *dev,
 387                         struct iw_request_info *info, u32 * uwrq, char *extra)
 388{
 389        wlan_private *priv = dev->priv;
 390        wlan_adapter *adapter = priv->adapter;
 391
 392        lbs_deb_enter(LBS_DEB_WEXT);
 393
 394        *uwrq = adapter->mode;
 395
 396        lbs_deb_leave(LBS_DEB_WEXT);
 397        return 0;
 398}
 399
 400static int mesh_wlan_get_mode(struct net_device *dev,
 401                              struct iw_request_info *info, u32 * uwrq,
 402                              char *extra)
 403{
 404        lbs_deb_enter(LBS_DEB_WEXT);
 405
 406        *uwrq = IW_MODE_REPEAT ;
 407
 408        lbs_deb_leave(LBS_DEB_WEXT);
 409        return 0;
 410}
 411
 412static int wlan_get_txpow(struct net_device *dev,
 413                          struct iw_request_info *info,
 414                          struct iw_param *vwrq, char *extra)
 415{
 416        int ret = 0;
 417        wlan_private *priv = dev->priv;
 418        wlan_adapter *adapter = priv->adapter;
 419
 420        lbs_deb_enter(LBS_DEB_WEXT);
 421
 422        ret = libertas_prepare_and_send_command(priv,
 423                                    CMD_802_11_RF_TX_POWER,
 424                                    CMD_ACT_TX_POWER_OPT_GET,
 425                                    CMD_OPTION_WAITFORRSP, 0, NULL);
 426
 427        if (ret)
 428                goto out;
 429
 430        lbs_deb_wext("tx power level %d dbm\n", adapter->txpowerlevel);
 431        vwrq->value = adapter->txpowerlevel;
 432        vwrq->fixed = 1;
 433        if (adapter->radioon) {
 434                vwrq->disabled = 0;
 435                vwrq->flags = IW_TXPOW_DBM;
 436        } else {
 437                vwrq->disabled = 1;
 438        }
 439
 440out:
 441        lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
 442        return ret;
 443}
 444
 445static int wlan_set_retry(struct net_device *dev, struct iw_request_info *info,
 446                          struct iw_param *vwrq, char *extra)
 447{
 448        int ret = 0;
 449        wlan_private *priv = dev->priv;
 450        wlan_adapter *adapter = priv->adapter;
 451
 452        lbs_deb_enter(LBS_DEB_WEXT);
 453
 454        if (vwrq->flags == IW_RETRY_LIMIT) {
 455                /* The MAC has a 4-bit Total_Tx_Count register
 456                   Total_Tx_Count = 1 + Tx_Retry_Count */
 457#define TX_RETRY_MIN 0
 458#define TX_RETRY_MAX 14
 459                if (vwrq->value < TX_RETRY_MIN || vwrq->value > TX_RETRY_MAX)
 460                        return -EINVAL;
 461
 462                /* Adding 1 to convert retry count to try count */
 463                adapter->txretrycount = vwrq->value + 1;
 464
 465                ret = libertas_prepare_and_send_command(priv, CMD_802_11_SNMP_MIB,
 466                                            CMD_ACT_SET,
 467                                            CMD_OPTION_WAITFORRSP,
 468                                            OID_802_11_TX_RETRYCOUNT, NULL);
 469
 470                if (ret)
 471                        goto out;
 472        } else {
 473                return -EOPNOTSUPP;
 474        }
 475
 476out:
 477        lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
 478        return ret;
 479}
 480
 481static int wlan_get_retry(struct net_device *dev, struct iw_request_info *info,
 482                          struct iw_param *vwrq, char *extra)
 483{
 484        wlan_private *priv = dev->priv;
 485        wlan_adapter *adapter = priv->adapter;
 486        int ret = 0;
 487
 488        lbs_deb_enter(LBS_DEB_WEXT);
 489
 490        adapter->txretrycount = 0;
 491        ret = libertas_prepare_and_send_command(priv,
 492                                    CMD_802_11_SNMP_MIB,
 493                                    CMD_ACT_GET, CMD_OPTION_WAITFORRSP,
 494                                    OID_802_11_TX_RETRYCOUNT, NULL);
 495        if (ret)
 496                goto out;
 497
 498        vwrq->disabled = 0;
 499        if (!vwrq->flags) {
 500                vwrq->flags = IW_RETRY_LIMIT;
 501                /* Subtract 1 to convert try count to retry count */
 502                vwrq->value = adapter->txretrycount - 1;
 503        }
 504
 505out:
 506        lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
 507        return ret;
 508}
 509
 510static inline void sort_channels(struct iw_freq *freq, int num)
 511{
 512        int i, j;
 513        struct iw_freq temp;
 514
 515        for (i = 0; i < num; i++)
 516                for (j = i + 1; j < num; j++)
 517                        if (freq[i].i > freq[j].i) {
 518                                temp.i = freq[i].i;
 519                                temp.m = freq[i].m;
 520
 521                                freq[i].i = freq[j].i;
 522                                freq[i].m = freq[j].m;
 523
 524                                freq[j].i = temp.i;
 525                                freq[j].m = temp.m;
 526                        }
 527}
 528
 529/* data rate listing
 530        MULTI_BANDS:
 531                abg             a       b       b/g
 532   Infra        G(12)           A(8)    B(4)    G(12)
 533   Adhoc        A+B(12)         A(8)    B(4)    B(4)
 534
 535        non-MULTI_BANDS:
 536                                        b       b/g
 537   Infra                                B(4)    G(12)
 538   Adhoc                                B(4)    B(4)
 539 */
 540/**
 541 *  @brief Get Range Info
 542 *
 543 *  @param dev                  A pointer to net_device structure
 544 *  @param info                 A pointer to iw_request_info structure
 545 *  @param vwrq                 A pointer to iw_param structure
 546 *  @param extra                A pointer to extra data buf
 547 *  @return                     0 --success, otherwise fail
 548 */
 549static int wlan_get_range(struct net_device *dev, struct iw_request_info *info,
 550                          struct iw_point *dwrq, char *extra)
 551{
 552        int i, j;
 553        wlan_private *priv = dev->priv;
 554        wlan_adapter *adapter = priv->adapter;
 555        struct iw_range *range = (struct iw_range *)extra;
 556        struct chan_freq_power *cfp;
 557        u8 rates[MAX_RATES + 1];
 558
 559        u8 flag = 0;
 560
 561        lbs_deb_enter(LBS_DEB_WEXT);
 562
 563        dwrq->length = sizeof(struct iw_range);
 564        memset(range, 0, sizeof(struct iw_range));
 565
 566        range->min_nwid = 0;
 567        range->max_nwid = 0;
 568
 569        memset(rates, 0, sizeof(rates));
 570        copy_active_data_rates(adapter, rates);
 571        range->num_bitrates = strnlen(rates, IW_MAX_BITRATES);
 572        for (i = 0; i < range->num_bitrates; i++)
 573                range->bitrate[i] = rates[i] * 500000;
 574        range->num_bitrates = i;
 575        lbs_deb_wext("IW_MAX_BITRATES %d, num_bitrates %d\n", IW_MAX_BITRATES,
 576               range->num_bitrates);
 577
 578        range->num_frequency = 0;
 579        if (priv->adapter->enable11d &&
 580            adapter->connect_status == LIBERTAS_CONNECTED) {
 581                u8 chan_no;
 582                u8 band;
 583
 584                struct parsed_region_chan_11d *parsed_region_chan =
 585                    &adapter->parsed_region_chan;
 586
 587                if (parsed_region_chan == NULL) {
 588                        lbs_deb_wext("11d: parsed_region_chan is NULL\n");
 589                        goto out;
 590                }
 591                band = parsed_region_chan->band;
 592                lbs_deb_wext("band %d, nr_char %d\n", band,
 593                       parsed_region_chan->nr_chan);
 594
 595                for (i = 0; (range->num_frequency < IW_MAX_FREQUENCIES)
 596                     && (i < parsed_region_chan->nr_chan); i++) {
 597                        chan_no = parsed_region_chan->chanpwr[i].chan;
 598                        lbs_deb_wext("chan_no %d\n", chan_no);
 599                        range->freq[range->num_frequency].i = (long)chan_no;
 600                        range->freq[range->num_frequency].m =
 601                            (long)libertas_chan_2_freq(chan_no, band) * 100000;
 602                        range->freq[range->num_frequency].e = 1;
 603                        range->num_frequency++;
 604                }
 605                flag = 1;
 606        }
 607        if (!flag) {
 608                for (j = 0; (range->num_frequency < IW_MAX_FREQUENCIES)
 609                     && (j < sizeof(adapter->region_channel)
 610                         / sizeof(adapter->region_channel[0])); j++) {
 611                        cfp = adapter->region_channel[j].CFP;
 612                        for (i = 0; (range->num_frequency < IW_MAX_FREQUENCIES)
 613                             && adapter->region_channel[j].valid
 614                             && cfp
 615                             && (i < adapter->region_channel[j].nrcfp); i++) {
 616                                range->freq[range->num_frequency].i =
 617                                    (long)cfp->channel;
 618                                range->freq[range->num_frequency].m =
 619                                    (long)cfp->freq * 100000;
 620                                range->freq[range->num_frequency].e = 1;
 621                                cfp++;
 622                                range->num_frequency++;
 623                        }
 624                }
 625        }
 626
 627        lbs_deb_wext("IW_MAX_FREQUENCIES %d, num_frequency %d\n",
 628               IW_MAX_FREQUENCIES, range->num_frequency);
 629
 630        range->num_channels = range->num_frequency;
 631
 632        sort_channels(&range->freq[0], range->num_frequency);
 633
 634        /*
 635         * Set an indication of the max TCP throughput in bit/s that we can
 636         * expect using this interface
 637         */
 638        if (i > 2)
 639                range->throughput = 5000 * 1000;
 640        else
 641                range->throughput = 1500 * 1000;
 642
 643        range->min_rts = MRVDRV_RTS_MIN_VALUE;
 644        range->max_rts = MRVDRV_RTS_MAX_VALUE;
 645        range->min_frag = MRVDRV_FRAG_MIN_VALUE;
 646        range->max_frag = MRVDRV_FRAG_MAX_VALUE;
 647
 648        range->encoding_size[0] = 5;
 649        range->encoding_size[1] = 13;
 650        range->num_encoding_sizes = 2;
 651        range->max_encoding_tokens = 4;
 652
 653        range->min_pmp = 1000000;
 654        range->max_pmp = 120000000;
 655        range->min_pmt = 1000;
 656        range->max_pmt = 1000000;
 657        range->pmp_flags = IW_POWER_PERIOD;
 658        range->pmt_flags = IW_POWER_TIMEOUT;
 659        range->pm_capa = IW_POWER_PERIOD | IW_POWER_TIMEOUT | IW_POWER_ALL_R;
 660
 661        /*
 662         * Minimum version we recommend
 663         */
 664        range->we_version_source = 15;
 665
 666        /*
 667         * Version we are compiled with
 668         */
 669        range->we_version_compiled = WIRELESS_EXT;
 670
 671        range->retry_capa = IW_RETRY_LIMIT;
 672        range->retry_flags = IW_RETRY_LIMIT | IW_RETRY_MAX;
 673
 674        range->min_retry = TX_RETRY_MIN;
 675        range->max_retry = TX_RETRY_MAX;
 676
 677        /*
 678         * Set the qual, level and noise range values
 679         */
 680        range->max_qual.qual = 100;
 681        range->max_qual.level = 0;
 682        range->max_qual.noise = 0;
 683        range->max_qual.updated = IW_QUAL_ALL_UPDATED | IW_QUAL_DBM;
 684
 685        range->avg_qual.qual = 70;
 686        /* TODO: Find real 'good' to 'bad' threshold value for RSSI */
 687        range->avg_qual.level = 0;
 688        range->avg_qual.noise = 0;
 689        range->avg_qual.updated = IW_QUAL_ALL_UPDATED | IW_QUAL_DBM;
 690
 691        range->sensitivity = 0;
 692
 693        /*
 694         * Setup the supported power level ranges
 695         */
 696        memset(range->txpower, 0, sizeof(range->txpower));
 697        range->txpower[0] = 5;
 698        range->txpower[1] = 7;
 699        range->txpower[2] = 9;
 700        range->txpower[3] = 11;
 701        range->txpower[4] = 13;
 702        range->txpower[5] = 15;
 703        range->txpower[6] = 17;
 704        range->txpower[7] = 19;
 705
 706        range->num_txpower = 8;
 707        range->txpower_capa = IW_TXPOW_DBM;
 708        range->txpower_capa |= IW_TXPOW_RANGE;
 709
 710        range->event_capa[0] = (IW_EVENT_CAPA_K_0 |
 711                                IW_EVENT_CAPA_MASK(SIOCGIWAP) |
 712                                IW_EVENT_CAPA_MASK(SIOCGIWSCAN));
 713        range->event_capa[1] = IW_EVENT_CAPA_K_1;
 714
 715        if (adapter->fwcapinfo & FW_CAPINFO_WPA) {
 716                range->enc_capa =   IW_ENC_CAPA_WPA
 717                                  | IW_ENC_CAPA_WPA2
 718                                  | IW_ENC_CAPA_CIPHER_TKIP
 719                                  | IW_ENC_CAPA_CIPHER_CCMP;
 720        }
 721
 722out:
 723        lbs_deb_leave(LBS_DEB_WEXT);
 724        return 0;
 725}
 726
 727static int wlan_set_power(struct net_device *dev, struct iw_request_info *info,
 728                          struct iw_param *vwrq, char *extra)
 729{
 730        wlan_private *priv = dev->priv;
 731        wlan_adapter *adapter = priv->adapter;
 732
 733        lbs_deb_enter(LBS_DEB_WEXT);
 734
 735        /* PS is currently supported only in Infrastructure mode
 736         * Remove this check if it is to be supported in IBSS mode also
 737         */
 738
 739        if (vwrq->disabled) {
 740                adapter->psmode = WLAN802_11POWERMODECAM;
 741                if (adapter->psstate != PS_STATE_FULL_POWER) {
 742                        libertas_ps_wakeup(priv, CMD_OPTION_WAITFORRSP);
 743                }
 744
 745                return 0;
 746        }
 747
 748        if ((vwrq->flags & IW_POWER_TYPE) == IW_POWER_TIMEOUT) {
 749                lbs_deb_wext(
 750                       "setting power timeout is not supported\n");
 751                return -EINVAL;
 752        } else if ((vwrq->flags & IW_POWER_TYPE) == IW_POWER_PERIOD) {
 753                lbs_deb_wext("setting power period not supported\n");
 754                return -EINVAL;
 755        }
 756
 757        if (adapter->psmode != WLAN802_11POWERMODECAM) {
 758                return 0;
 759        }
 760
 761        adapter->psmode = WLAN802_11POWERMODEMAX_PSP;
 762
 763        if (adapter->connect_status == LIBERTAS_CONNECTED) {
 764                libertas_ps_sleep(priv, CMD_OPTION_WAITFORRSP);
 765        }
 766
 767        lbs_deb_leave(LBS_DEB_WEXT);
 768        return 0;
 769}
 770
 771static int wlan_get_power(struct net_device *dev, struct iw_request_info *info,
 772                          struct iw_param *vwrq, char *extra)
 773{
 774        wlan_private *priv = dev->priv;
 775        wlan_adapter *adapter = priv->adapter;
 776        int mode;
 777
 778        lbs_deb_enter(LBS_DEB_WEXT);
 779
 780        mode = adapter->psmode;
 781
 782        if ((vwrq->disabled = (mode == WLAN802_11POWERMODECAM))
 783            || adapter->connect_status == LIBERTAS_DISCONNECTED)
 784        {
 785                goto out;
 786        }
 787
 788        vwrq->value = 0;
 789
 790out:
 791        lbs_deb_leave(LBS_DEB_WEXT);
 792        return 0;
 793}
 794
 795static struct iw_statistics *wlan_get_wireless_stats(struct net_device *dev)
 796{
 797        enum {
 798                POOR = 30,
 799                FAIR = 60,
 800                GOOD = 80,
 801                VERY_GOOD = 90,
 802                EXCELLENT = 95,
 803                PERFECT = 100
 804        };
 805        wlan_private *priv = dev->priv;
 806        wlan_adapter *adapter = priv->adapter;
 807        u32 rssi_qual;
 808        u32 tx_qual;
 809        u32 quality = 0;
 810        int stats_valid = 0;
 811        u8 rssi;
 812        u32 tx_retries;
 813
 814        lbs_deb_enter(LBS_DEB_WEXT);
 815
 816        priv->wstats.status = adapter->mode;
 817
 818        /* If we're not associated, all quality values are meaningless */
 819        if (adapter->connect_status != LIBERTAS_CONNECTED)
 820                goto out;
 821
 822        /* Quality by RSSI */
 823        priv->wstats.qual.level =
 824            CAL_RSSI(adapter->SNR[TYPE_BEACON][TYPE_NOAVG],
 825             adapter->NF[TYPE_BEACON][TYPE_NOAVG]);
 826
 827        if (adapter->NF[TYPE_BEACON][TYPE_NOAVG] == 0) {
 828                priv->wstats.qual.noise = MRVDRV_NF_DEFAULT_SCAN_VALUE;
 829        } else {
 830                priv->wstats.qual.noise =
 831                    CAL_NF(adapter->NF[TYPE_BEACON][TYPE_NOAVG]);
 832        }
 833
 834        lbs_deb_wext("signal level %#x\n", priv->wstats.qual.level);
 835        lbs_deb_wext("noise %#x\n", priv->wstats.qual.noise);
 836
 837        rssi = priv->wstats.qual.level - priv->wstats.qual.noise;
 838        if (rssi < 15)
 839                rssi_qual = rssi * POOR / 10;
 840        else if (rssi < 20)
 841                rssi_qual = (rssi - 15) * (FAIR - POOR) / 5 + POOR;
 842        else if (rssi < 30)
 843                rssi_qual = (rssi - 20) * (GOOD - FAIR) / 5 + FAIR;
 844        else if (rssi < 40)
 845                rssi_qual = (rssi - 30) * (VERY_GOOD - GOOD) /
 846                    10 + GOOD;
 847        else
 848                rssi_qual = (rssi - 40) * (PERFECT - VERY_GOOD) /
 849                    10 + VERY_GOOD;
 850        quality = rssi_qual;
 851
 852        /* Quality by TX errors */
 853        priv->wstats.discard.retries = priv->stats.tx_errors;
 854
 855        tx_retries = le32_to_cpu(adapter->logmsg.retry);
 856
 857        if (tx_retries > 75)
 858                tx_qual = (90 - tx_retries) * POOR / 15;
 859        else if (tx_retries > 70)
 860                tx_qual = (75 - tx_retries) * (FAIR - POOR) / 5 + POOR;
 861        else if (tx_retries > 65)
 862                tx_qual = (70 - tx_retries) * (GOOD - FAIR) / 5 + FAIR;
 863        else if (tx_retries > 50)
 864                tx_qual = (65 - tx_retries) * (VERY_GOOD - GOOD) /
 865                    15 + GOOD;
 866        else
 867                tx_qual = (50 - tx_retries) *
 868                    (PERFECT - VERY_GOOD) / 50 + VERY_GOOD;
 869        quality = min(quality, tx_qual);
 870
 871        priv->wstats.discard.code = le32_to_cpu(adapter->logmsg.wepundecryptable);
 872        priv->wstats.discard.fragment = le32_to_cpu(adapter->logmsg.rxfrag);
 873        priv->wstats.discard.retries = tx_retries;
 874        priv->wstats.discard.misc = le32_to_cpu(adapter->logmsg.ackfailure);
 875
 876        /* Calculate quality */
 877        priv->wstats.qual.qual = min_t(u8, quality, 100);
 878        priv->wstats.qual.updated = IW_QUAL_ALL_UPDATED | IW_QUAL_DBM;
 879        stats_valid = 1;
 880
 881        /* update stats asynchronously for future calls */
 882        libertas_prepare_and_send_command(priv, CMD_802_11_RSSI, 0,
 883                                        0, 0, NULL);
 884        libertas_prepare_and_send_command(priv, CMD_802_11_GET_LOG, 0,
 885                                        0, 0, NULL);
 886out:
 887        if (!stats_valid) {
 888                priv->wstats.miss.beacon = 0;
 889                priv->wstats.discard.retries = 0;
 890                priv->wstats.qual.qual = 0;
 891                priv->wstats.qual.level = 0;
 892                priv->wstats.qual.noise = 0;
 893                priv->wstats.qual.updated = IW_QUAL_ALL_UPDATED;
 894                priv->wstats.qual.updated |= IW_QUAL_NOISE_INVALID |
 895                    IW_QUAL_QUAL_INVALID | IW_QUAL_LEVEL_INVALID;
 896        }
 897
 898        lbs_deb_leave(LBS_DEB_WEXT);
 899        return &priv->wstats;
 900
 901
 902}
 903
 904static int wlan_set_freq(struct net_device *dev, struct iw_request_info *info,
 905                  struct iw_freq *fwrq, char *extra)
 906{
 907        int ret = -EINVAL;
 908        wlan_private *priv = dev->priv;
 909        wlan_adapter *adapter = priv->adapter;
 910        struct chan_freq_power *cfp;
 911        struct assoc_request * assoc_req;
 912
 913        lbs_deb_enter(LBS_DEB_WEXT);
 914
 915        mutex_lock(&adapter->lock);
 916        assoc_req = wlan_get_association_request(adapter);
 917        if (!assoc_req) {
 918                ret = -ENOMEM;
 919                goto out;
 920        }
 921
 922        /* If setting by frequency, convert to a channel */
 923        if (fwrq->e == 1) {
 924                long f = fwrq->m / 100000;
 925
 926                cfp = find_cfp_by_band_and_freq(adapter, 0, f);
 927                if (!cfp) {
 928                        lbs_deb_wext("invalid freq %ld\n", f);
 929                        goto out;
 930                }
 931
 932                fwrq->e = 0;
 933                fwrq->m = (int) cfp->channel;
 934        }
 935
 936        /* Setting by channel number */
 937        if (fwrq->m > 1000 || fwrq->e > 0) {
 938                goto out;
 939        }
 940
 941        cfp = libertas_find_cfp_by_band_and_channel(adapter, 0, fwrq->m);
 942        if (!cfp) {
 943                goto out;
 944        }
 945
 946        assoc_req->channel = fwrq->m;
 947        ret = 0;
 948
 949out:
 950        if (ret == 0) {
 951                set_bit(ASSOC_FLAG_CHANNEL, &assoc_req->flags);
 952                wlan_postpone_association_work(priv);
 953        } else {
 954                wlan_cancel_association_work(priv);
 955        }
 956        mutex_unlock(&adapter->lock);
 957
 958        lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
 959        return ret;
 960}
 961
 962static int wlan_set_rate(struct net_device *dev, struct iw_request_info *info,
 963                  struct iw_param *vwrq, char *extra)
 964{
 965        wlan_private *priv = dev->priv;
 966        wlan_adapter *adapter = priv->adapter;
 967        u32 new_rate;
 968        u16 action;
 969        int ret = -EINVAL;
 970        u8 rates[MAX_RATES + 1];
 971
 972        lbs_deb_enter(LBS_DEB_WEXT);
 973        lbs_deb_wext("vwrq->value %d\n", vwrq->value);
 974
 975        /* Auto rate? */
 976        if (vwrq->value == -1) {
 977                action = CMD_ACT_SET_TX_AUTO;
 978                adapter->auto_rate = 1;
 979                adapter->cur_rate = 0;
 980        } else {
 981                if (vwrq->value % 100000)
 982                        goto out;
 983
 984                memset(rates, 0, sizeof(rates));
 985                copy_active_data_rates(adapter, rates);
 986                new_rate = vwrq->value / 500000;
 987                if (!memchr(rates, new_rate, sizeof(rates))) {
 988                        lbs_pr_alert("fixed data rate 0x%X out of range\n",
 989                                new_rate);
 990                        goto out;
 991                }
 992
 993                adapter->cur_rate = new_rate;
 994                action = CMD_ACT_SET_TX_FIX_RATE;
 995                adapter->auto_rate = 0;
 996        }
 997
 998        ret = libertas_prepare_and_send_command(priv, CMD_802_11_DATA_RATE,
 999                                    action, CMD_OPTION_WAITFORRSP, 0, NULL);
1000
1001out:
1002        lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
1003        return ret;
1004}
1005
1006static int wlan_get_rate(struct net_device *dev, struct iw_request_info *info,
1007                  struct iw_param *vwrq, char *extra)
1008{
1009        wlan_private *priv = dev->priv;
1010        wlan_adapter *adapter = priv->adapter;
1011
1012        lbs_deb_enter(LBS_DEB_WEXT);
1013
1014        if (adapter->connect_status == LIBERTAS_CONNECTED) {
1015                vwrq->value = adapter->cur_rate * 500000;
1016
1017                if (adapter->auto_rate)
1018                        vwrq->fixed = 0;
1019                else
1020                        vwrq->fixed = 1;
1021
1022        } else {
1023                vwrq->fixed = 0;
1024                vwrq->value = 0;
1025        }
1026
1027        lbs_deb_leave(LBS_DEB_WEXT);
1028        return 0;
1029}
1030
1031static int wlan_set_mode(struct net_device *dev,
1032                  struct iw_request_info *info, u32 * uwrq, char *extra)
1033{
1034        int ret = 0;
1035        wlan_private *priv = dev->priv;
1036        wlan_adapter *adapter = priv->adapter;
1037        struct assoc_request * assoc_req;
1038
1039        lbs_deb_enter(LBS_DEB_WEXT);
1040
1041        if (   (*uwrq != IW_MODE_ADHOC)
1042            && (*uwrq != IW_MODE_INFRA)
1043            && (*uwrq != IW_MODE_AUTO)) {
1044                lbs_deb_wext("Invalid mode: 0x%x\n", *uwrq);
1045                ret = -EINVAL;
1046                goto out;
1047        }
1048
1049        mutex_lock(&adapter->lock);
1050        assoc_req = wlan_get_association_request(adapter);
1051        if (!assoc_req) {
1052                ret = -ENOMEM;
1053                wlan_cancel_association_work(priv);
1054        } else {
1055                assoc_req->mode = *uwrq;
1056                set_bit(ASSOC_FLAG_MODE, &assoc_req->flags);
1057                wlan_postpone_association_work(priv);
1058                lbs_deb_wext("Switching to mode: 0x%x\n", *uwrq);
1059        }
1060        mutex_unlock(&adapter->lock);
1061
1062out:
1063        lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
1064        return ret;
1065}
1066
1067
1068/**
1069 *  @brief Get Encryption key
1070 *
1071 *  @param dev                  A pointer to net_device structure
1072 *  @param info                 A pointer to iw_request_info structure
1073 *  @param vwrq                 A pointer to iw_param structure
1074 *  @param extra                A pointer to extra data buf
1075 *  @return                     0 --success, otherwise fail
1076 */
1077static int wlan_get_encode(struct net_device *dev,
1078                           struct iw_request_info *info,
1079                           struct iw_point *dwrq, u8 * extra)
1080{
1081        wlan_private *priv = dev->priv;
1082        wlan_adapter *adapter = priv->adapter;
1083        int index = (dwrq->flags & IW_ENCODE_INDEX) - 1;
1084
1085        lbs_deb_enter(LBS_DEB_WEXT);
1086
1087        lbs_deb_wext("flags 0x%x, index %d, length %d, wep_tx_keyidx %d\n",
1088               dwrq->flags, index, dwrq->length, adapter->wep_tx_keyidx);
1089
1090        dwrq->flags = 0;
1091
1092        /* Authentication method */
1093        switch (adapter->secinfo.auth_mode) {
1094        case IW_AUTH_ALG_OPEN_SYSTEM:
1095                dwrq->flags = IW_ENCODE_OPEN;
1096                break;
1097
1098        case IW_AUTH_ALG_SHARED_KEY:
1099        case IW_AUTH_ALG_LEAP:
1100                dwrq->flags = IW_ENCODE_RESTRICTED;
1101                break;
1102        default:
1103                dwrq->flags = IW_ENCODE_DISABLED | IW_ENCODE_OPEN;
1104                break;
1105        }
1106
1107        if (   adapter->secinfo.wep_enabled
1108            || adapter->secinfo.WPAenabled
1109            || adapter->secinfo.WPA2enabled) {
1110                dwrq->flags &= ~IW_ENCODE_DISABLED;
1111        } else {
1112                dwrq->flags |= IW_ENCODE_DISABLED;
1113        }
1114
1115        memset(extra, 0, 16);
1116
1117        mutex_lock(&adapter->lock);
1118
1119        /* Default to returning current transmit key */
1120        if (index < 0)
1121                index = adapter->wep_tx_keyidx;
1122
1123        if ((adapter->wep_keys[index].len) && adapter->secinfo.wep_enabled) {
1124                memcpy(extra, adapter->wep_keys[index].key,
1125                       adapter->wep_keys[index].len);
1126                dwrq->length = adapter->wep_keys[index].len;
1127
1128                dwrq->flags |= (index + 1);
1129                /* Return WEP enabled */
1130                dwrq->flags &= ~IW_ENCODE_DISABLED;
1131        } else if ((adapter->secinfo.WPAenabled)
1132                   || (adapter->secinfo.WPA2enabled)) {
1133                /* return WPA enabled */
1134                dwrq->flags &= ~IW_ENCODE_DISABLED;
1135        } else {
1136                dwrq->flags |= IW_ENCODE_DISABLED;
1137        }
1138
1139        mutex_unlock(&adapter->lock);
1140
1141        dwrq->flags |= IW_ENCODE_NOKEY;
1142
1143        lbs_deb_wext("key: %02x:%02x:%02x:%02x:%02x:%02x, keylen %d\n",
1144               extra[0], extra[1], extra[2],
1145               extra[3], extra[4], extra[5], dwrq->length);
1146
1147        lbs_deb_wext("return flags 0x%x\n", dwrq->flags);
1148
1149        lbs_deb_leave(LBS_DEB_WEXT);
1150        return 0;
1151}
1152
1153/**
1154 *  @brief Set Encryption key (internal)
1155 *
1156 *  @param priv                 A pointer to private card structure
1157 *  @param key_material         A pointer to key material
1158 *  @param key_length           length of key material
1159 *  @param index                key index to set
1160 *  @param set_tx_key           Force set TX key (1 = yes, 0 = no)
1161 *  @return                     0 --success, otherwise fail
1162 */
1163static int wlan_set_wep_key(struct assoc_request *assoc_req,
1164                            const char *key_material,
1165                            u16 key_length,
1166                            u16 index,
1167                            int set_tx_key)
1168{
1169        int ret = 0;
1170        struct enc_key *pkey;
1171
1172        lbs_deb_enter(LBS_DEB_WEXT);
1173
1174        /* Paranoid validation of key index */
1175        if (index > 3) {
1176                ret = -EINVAL;
1177                goto out;
1178        }
1179
1180        /* validate max key length */
1181        if (key_length > KEY_LEN_WEP_104) {
1182                ret = -EINVAL;
1183                goto out;
1184        }
1185
1186        pkey = &assoc_req->wep_keys[index];
1187
1188        if (key_length > 0) {
1189                memset(pkey, 0, sizeof(struct enc_key));
1190                pkey->type = KEY_TYPE_ID_WEP;
1191
1192                /* Standardize the key length */
1193                pkey->len = (key_length > KEY_LEN_WEP_40) ?
1194                                KEY_LEN_WEP_104 : KEY_LEN_WEP_40;
1195                memcpy(pkey->key, key_material, key_length);
1196        }
1197
1198        if (set_tx_key) {
1199                /* Ensure the chosen key is valid */
1200                if (!pkey->len) {
1201                        lbs_deb_wext("key not set, so cannot enable it\n");
1202                        ret = -EINVAL;
1203                        goto out;
1204                }
1205                assoc_req->wep_tx_keyidx = index;
1206        }
1207
1208        assoc_req->secinfo.wep_enabled = 1;
1209
1210out:
1211        lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
1212        return ret;
1213}
1214
1215static int validate_key_index(u16 def_index, u16 raw_index,
1216                              u16 *out_index, u16 *is_default)
1217{
1218        if (!out_index || !is_default)
1219                return -EINVAL;
1220
1221        /* Verify index if present, otherwise use default TX key index */
1222        if (raw_index > 0) {
1223                if (raw_index > 4)
1224                        return -EINVAL;
1225                *out_index = raw_index - 1;
1226        } else {
1227                *out_index = def_index;
1228                *is_default = 1;
1229        }
1230        return 0;
1231}
1232
1233static void disable_wep(struct assoc_request *assoc_req)
1234{
1235        int i;
1236
1237        lbs_deb_enter(LBS_DEB_WEXT);
1238
1239        /* Set Open System auth mode */
1240        assoc_req->secinfo.auth_mode = IW_AUTH_ALG_OPEN_SYSTEM;
1241
1242        /* Clear WEP keys and mark WEP as disabled */
1243        assoc_req->secinfo.wep_enabled = 0;
1244        for (i = 0; i < 4; i++)
1245                assoc_req->wep_keys[i].len = 0;
1246
1247        set_bit(ASSOC_FLAG_SECINFO, &assoc_req->flags);
1248        set_bit(ASSOC_FLAG_WEP_KEYS, &assoc_req->flags);
1249
1250        lbs_deb_leave(LBS_DEB_WEXT);
1251}
1252
1253static void disable_wpa(struct assoc_request *assoc_req)
1254{
1255        lbs_deb_enter(LBS_DEB_WEXT);
1256
1257        memset(&assoc_req->wpa_mcast_key, 0, sizeof (struct enc_key));
1258        assoc_req->wpa_mcast_key.flags = KEY_INFO_WPA_MCAST;
1259        set_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc_req->flags);
1260
1261        memset(&assoc_req->wpa_unicast_key, 0, sizeof (struct enc_key));
1262        assoc_req->wpa_unicast_key.flags = KEY_INFO_WPA_UNICAST;
1263        set_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc_req->flags);
1264
1265        assoc_req->secinfo.WPAenabled = 0;
1266        assoc_req->secinfo.WPA2enabled = 0;
1267        set_bit(ASSOC_FLAG_SECINFO, &assoc_req->flags);
1268
1269        lbs_deb_leave(LBS_DEB_WEXT);
1270}
1271
1272/**
1273 *  @brief Set Encryption key
1274 *
1275 *  @param dev                  A pointer to net_device structure
1276 *  @param info                 A pointer to iw_request_info structure
1277 *  @param vwrq                 A pointer to iw_param structure
1278 *  @param extra                A pointer to extra data buf
1279 *  @return                     0 --success, otherwise fail
1280 */
1281static int wlan_set_encode(struct net_device *dev,
1282                    struct iw_request_info *info,
1283                    struct iw_point *dwrq, char *extra)
1284{
1285        int ret = 0;
1286        wlan_private *priv = dev->priv;
1287        wlan_adapter *adapter = priv->adapter;
1288        struct assoc_request * assoc_req;
1289        u16 is_default = 0, index = 0, set_tx_key = 0;
1290
1291        lbs_deb_enter(LBS_DEB_WEXT);
1292
1293        mutex_lock(&adapter->lock);
1294        assoc_req = wlan_get_association_request(adapter);
1295        if (!assoc_req) {
1296                ret = -ENOMEM;
1297                goto out;
1298        }
1299
1300        if (dwrq->flags & IW_ENCODE_DISABLED) {
1301                disable_wep (assoc_req);
1302                disable_wpa (assoc_req);
1303                goto out;
1304        }
1305
1306        ret = validate_key_index(assoc_req->wep_tx_keyidx,
1307                                 (dwrq->flags & IW_ENCODE_INDEX),
1308                                 &index, &is_default);
1309        if (ret) {
1310                ret = -EINVAL;
1311                goto out;
1312        }
1313
1314        /* If WEP isn't enabled, or if there is no key data but a valid
1315         * index, set the TX key.
1316         */
1317        if (!assoc_req->secinfo.wep_enabled || (dwrq->length == 0 && !is_default))
1318                set_tx_key = 1;
1319
1320        ret = wlan_set_wep_key(assoc_req, extra, dwrq->length, index, set_tx_key);
1321        if (ret)
1322                goto out;
1323
1324        if (dwrq->length)
1325                set_bit(ASSOC_FLAG_WEP_KEYS, &assoc_req->flags);
1326        if (set_tx_key)
1327                set_bit(ASSOC_FLAG_WEP_TX_KEYIDX, &assoc_req->flags);
1328
1329        if (dwrq->flags & IW_ENCODE_RESTRICTED) {
1330                assoc_req->secinfo.auth_mode = IW_AUTH_ALG_SHARED_KEY;
1331        } else if (dwrq->flags & IW_ENCODE_OPEN) {
1332                assoc_req->secinfo.auth_mode = IW_AUTH_ALG_OPEN_SYSTEM;
1333        }
1334
1335out:
1336        if (ret == 0) {
1337                set_bit(ASSOC_FLAG_SECINFO, &assoc_req->flags);
1338                wlan_postpone_association_work(priv);
1339        } else {
1340                wlan_cancel_association_work(priv);
1341        }
1342        mutex_unlock(&adapter->lock);
1343
1344        lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
1345        return ret;
1346}
1347
1348/**
1349 *  @brief Get Extended Encryption key (WPA/802.1x and WEP)
1350 *
1351 *  @param dev                  A pointer to net_device structure
1352 *  @param info                 A pointer to iw_request_info structure
1353 *  @param vwrq                 A pointer to iw_param structure
1354 *  @param extra                A pointer to extra data buf
1355 *  @return                     0 on success, otherwise failure
1356 */
1357static int wlan_get_encodeext(struct net_device *dev,
1358                              struct iw_request_info *info,
1359                              struct iw_point *dwrq,
1360                              char *extra)
1361{
1362        int ret = -EINVAL;
1363        wlan_private *priv = dev->priv;
1364        wlan_adapter *adapter = priv->adapter;
1365        struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
1366        int index, max_key_len;
1367
1368        lbs_deb_enter(LBS_DEB_WEXT);
1369
1370        max_key_len = dwrq->length - sizeof(*ext);
1371        if (max_key_len < 0)
1372                goto out;
1373
1374        index = dwrq->flags & IW_ENCODE_INDEX;
1375        if (index) {
1376                if (index < 1 || index > 4)
1377                        goto out;
1378                index--;
1379        } else {
1380                index = adapter->wep_tx_keyidx;
1381        }
1382
1383        if (!ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY &&
1384            ext->alg != IW_ENCODE_ALG_WEP) {
1385                if (index != 0 || adapter->mode != IW_MODE_INFRA)
1386                        goto out;
1387        }
1388
1389        dwrq->flags = index + 1;
1390        memset(ext, 0, sizeof(*ext));
1391
1392        if (   !adapter->secinfo.wep_enabled
1393            && !adapter->secinfo.WPAenabled
1394            && !adapter->secinfo.WPA2enabled) {
1395                ext->alg = IW_ENCODE_ALG_NONE;
1396                ext->key_len = 0;
1397                dwrq->flags |= IW_ENCODE_DISABLED;
1398        } else {
1399                u8 *key = NULL;
1400
1401                if (   adapter->secinfo.wep_enabled
1402                    && !adapter->secinfo.WPAenabled
1403                    && !adapter->secinfo.WPA2enabled) {
1404                        /* WEP */
1405                        ext->alg = IW_ENCODE_ALG_WEP;
1406                        ext->key_len = adapter->wep_keys[index].len;
1407                        key = &adapter->wep_keys[index].key[0];
1408                } else if (   !adapter->secinfo.wep_enabled
1409                           && (adapter->secinfo.WPAenabled ||
1410                               adapter->secinfo.WPA2enabled)) {
1411                        /* WPA */
1412                        struct enc_key * pkey = NULL;
1413
1414                        if (   adapter->wpa_mcast_key.len
1415                            && (adapter->wpa_mcast_key.flags & KEY_INFO_WPA_ENABLED))
1416                                pkey = &adapter->wpa_mcast_key;
1417                        else if (   adapter->wpa_unicast_key.len
1418                                 && (adapter->wpa_unicast_key.flags & KEY_INFO_WPA_ENABLED))
1419                                pkey = &adapter->wpa_unicast_key;
1420
1421                        if (pkey) {
1422                                if (pkey->type == KEY_TYPE_ID_AES) {
1423                                        ext->alg = IW_ENCODE_ALG_CCMP;
1424                                } else {
1425                                        ext->alg = IW_ENCODE_ALG_TKIP;
1426                                }
1427                                ext->key_len = pkey->len;
1428                                key = &pkey->key[0];
1429                        } else {
1430                                ext->alg = IW_ENCODE_ALG_TKIP;
1431                                ext->key_len = 0;
1432                        }
1433                } else {
1434                        goto out;
1435                }
1436
1437                if (ext->key_len > max_key_len) {
1438                        ret = -E2BIG;
1439                        goto out;
1440                }
1441
1442                if (ext->key_len)
1443                        memcpy(ext->key, key, ext->key_len);
1444                else
1445                        dwrq->flags |= IW_ENCODE_NOKEY;
1446                dwrq->flags |= IW_ENCODE_ENABLED;
1447        }
1448        ret = 0;
1449
1450out:
1451        lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
1452        return ret;
1453}
1454
1455/**
1456 *  @brief Set Encryption key Extended (WPA/802.1x and WEP)
1457 *
1458 *  @param dev                  A pointer to net_device structure
1459 *  @param info                 A pointer to iw_request_info structure
1460 *  @param vwrq                 A pointer to iw_param structure
1461 *  @param extra                A pointer to extra data buf
1462 *  @return                     0 --success, otherwise fail
1463 */
1464static int wlan_set_encodeext(struct net_device *dev,
1465                              struct iw_request_info *info,
1466                              struct iw_point *dwrq,
1467                              char *extra)
1468{
1469        int ret = 0;
1470        wlan_private *priv = dev->priv;
1471        wlan_adapter *adapter = priv->adapter;
1472        struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
1473        int alg = ext->alg;
1474        struct assoc_request * assoc_req;
1475
1476        lbs_deb_enter(LBS_DEB_WEXT);
1477
1478        mutex_lock(&adapter->lock);
1479        assoc_req = wlan_get_association_request(adapter);
1480        if (!assoc_req) {
1481                ret = -ENOMEM;
1482                goto out;
1483        }
1484
1485        if ((alg == IW_ENCODE_ALG_NONE) || (dwrq->flags & IW_ENCODE_DISABLED)) {
1486                disable_wep (assoc_req);
1487                disable_wpa (assoc_req);
1488        } else if (alg == IW_ENCODE_ALG_WEP) {
1489                u16 is_default = 0, index, set_tx_key = 0;
1490
1491                ret = validate_key_index(assoc_req->wep_tx_keyidx,
1492                                         (dwrq->flags & IW_ENCODE_INDEX),
1493                                         &index, &is_default);
1494                if (ret)
1495                        goto out;
1496
1497                /* If WEP isn't enabled, or if there is no key data but a valid
1498                 * index, or if the set-TX-key flag was passed, set the TX key.
1499                 */
1500                if (   !assoc_req->secinfo.wep_enabled
1501                    || (dwrq->length == 0 && !is_default)
1502                    || (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY))
1503                        set_tx_key = 1;
1504
1505                /* Copy key to driver */
1506                ret = wlan_set_wep_key (assoc_req, ext->key, ext->key_len, index,
1507                                        set_tx_key);
1508                if (ret)
1509                        goto out;
1510
1511                if (dwrq->flags & IW_ENCODE_RESTRICTED) {
1512                        assoc_req->secinfo.auth_mode = IW_AUTH_ALG_SHARED_KEY;
1513                } else if (dwrq->flags & IW_ENCODE_OPEN) {
1514                        assoc_req->secinfo.auth_mode = IW_AUTH_ALG_OPEN_SYSTEM;
1515                }
1516
1517                /* Mark the various WEP bits as modified */
1518                set_bit(ASSOC_FLAG_SECINFO, &assoc_req->flags);
1519                if (dwrq->length)
1520                        set_bit(ASSOC_FLAG_WEP_KEYS, &assoc_req->flags);
1521                if (set_tx_key)
1522                        set_bit(ASSOC_FLAG_WEP_TX_KEYIDX, &assoc_req->flags);
1523        } else if ((alg == IW_ENCODE_ALG_TKIP) || (alg == IW_ENCODE_ALG_CCMP)) {
1524                struct enc_key * pkey;
1525
1526                /* validate key length */
1527                if (((alg == IW_ENCODE_ALG_TKIP)
1528                        && (ext->key_len != KEY_LEN_WPA_TKIP))
1529                    || ((alg == IW_ENCODE_ALG_CCMP)
1530                        && (ext->key_len != KEY_LEN_WPA_AES))) {
1531                                lbs_deb_wext("invalid size %d for key of alg "
1532                                       "type %d\n",
1533                                       ext->key_len,
1534                                       alg);
1535                                ret = -EINVAL;
1536                                goto out;
1537                }
1538
1539                if (ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY) {
1540                        pkey = &assoc_req->wpa_mcast_key;
1541                        set_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc_req->flags);
1542                } else {
1543                        pkey = &assoc_req->wpa_unicast_key;
1544                        set_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc_req->flags);
1545                }
1546
1547                memset(pkey, 0, sizeof (struct enc_key));
1548                memcpy(pkey->key, ext->key, ext->key_len);
1549                pkey->len = ext->key_len;
1550                if (pkey->len)
1551                        pkey->flags |= KEY_INFO_WPA_ENABLED;
1552
1553                /* Do this after zeroing key structure */
1554                if (ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY) {
1555                        pkey->flags |= KEY_INFO_WPA_MCAST;
1556                } else {
1557                        pkey->flags |= KEY_INFO_WPA_UNICAST;
1558                }
1559
1560                if (alg == IW_ENCODE_ALG_TKIP) {
1561                        pkey->type = KEY_TYPE_ID_TKIP;
1562                } else if (alg == IW_ENCODE_ALG_CCMP) {
1563                        pkey->type = KEY_TYPE_ID_AES;
1564                }
1565
1566                /* If WPA isn't enabled yet, do that now */
1567                if (   assoc_req->secinfo.WPAenabled == 0
1568                    && assoc_req->secinfo.WPA2enabled == 0) {
1569                        assoc_req->secinfo.WPAenabled = 1;
1570                        assoc_req->secinfo.WPA2enabled = 1;
1571                        set_bit(ASSOC_FLAG_SECINFO, &assoc_req->flags);
1572                }
1573
1574                disable_wep (assoc_req);
1575        }
1576
1577out:
1578        if (ret == 0) {
1579                wlan_postpone_association_work(priv);
1580        } else {
1581                wlan_cancel_association_work(priv);
1582        }
1583        mutex_unlock(&adapter->lock);
1584
1585        lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
1586        return ret;
1587}
1588
1589
1590static int wlan_set_genie(struct net_device *dev,
1591                          struct iw_request_info *info,
1592                          struct iw_point *dwrq,
1593                          char *extra)
1594{
1595        wlan_private *priv = dev->priv;
1596        wlan_adapter *adapter = priv->adapter;
1597        int ret = 0;
1598        struct assoc_request * assoc_req;
1599
1600        lbs_deb_enter(LBS_DEB_WEXT);
1601
1602        mutex_lock(&adapter->lock);
1603        assoc_req = wlan_get_association_request(adapter);
1604        if (!assoc_req) {
1605                ret = -ENOMEM;
1606                goto out;
1607        }
1608
1609        if (dwrq->length > MAX_WPA_IE_LEN ||
1610            (dwrq->length && extra == NULL)) {
1611                ret = -EINVAL;
1612                goto out;
1613        }
1614
1615        if (dwrq->length) {
1616                memcpy(&assoc_req->wpa_ie[0], extra, dwrq->length);
1617                assoc_req->wpa_ie_len = dwrq->length;
1618        } else {
1619                memset(&assoc_req->wpa_ie[0], 0, sizeof(adapter->wpa_ie));
1620                assoc_req->wpa_ie_len = 0;
1621        }
1622
1623out:
1624        if (ret == 0) {
1625                set_bit(ASSOC_FLAG_WPA_IE, &assoc_req->flags);
1626                wlan_postpone_association_work(priv);
1627        } else {
1628                wlan_cancel_association_work(priv);
1629        }
1630        mutex_unlock(&adapter->lock);
1631
1632        lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
1633        return ret;
1634}
1635
1636static int wlan_get_genie(struct net_device *dev,
1637                          struct iw_request_info *info,
1638                          struct iw_point *dwrq,
1639                          char *extra)
1640{
1641        int ret = 0;
1642        wlan_private *priv = dev->priv;
1643        wlan_adapter *adapter = priv->adapter;
1644
1645        lbs_deb_enter(LBS_DEB_WEXT);
1646
1647        if (adapter->wpa_ie_len == 0) {
1648                dwrq->length = 0;
1649                goto out;
1650        }
1651
1652        if (dwrq->length < adapter->wpa_ie_len) {
1653                ret = -E2BIG;
1654                goto out;
1655        }
1656
1657        dwrq->length = adapter->wpa_ie_len;
1658        memcpy(extra, &adapter->wpa_ie[0], adapter->wpa_ie_len);
1659
1660out:
1661        lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
1662        return ret;
1663}
1664
1665
1666static int wlan_set_auth(struct net_device *dev,
1667                         struct iw_request_info *info,
1668                         struct iw_param *dwrq,
1669                         char *extra)
1670{
1671        wlan_private *priv = dev->priv;
1672        wlan_adapter *adapter = priv->adapter;
1673        struct assoc_request * assoc_req;
1674        int ret = 0;
1675        int updated = 0;
1676
1677        lbs_deb_enter(LBS_DEB_WEXT);
1678
1679        mutex_lock(&adapter->lock);
1680        assoc_req = wlan_get_association_request(adapter);
1681        if (!assoc_req) {
1682                ret = -ENOMEM;
1683                goto out;
1684        }
1685
1686        switch (dwrq->flags & IW_AUTH_INDEX) {
1687        case IW_AUTH_TKIP_COUNTERMEASURES:
1688        case IW_AUTH_CIPHER_PAIRWISE:
1689        case IW_AUTH_CIPHER_GROUP:
1690        case IW_AUTH_KEY_MGMT:
1691        case IW_AUTH_DROP_UNENCRYPTED:
1692                /*
1693                 * libertas does not use these parameters
1694                 */
1695                break;
1696
1697        case IW_AUTH_WPA_VERSION:
1698                if (dwrq->value & IW_AUTH_WPA_VERSION_DISABLED) {
1699                        assoc_req->secinfo.WPAenabled = 0;
1700                        assoc_req->secinfo.WPA2enabled = 0;
1701                        disable_wpa (assoc_req);
1702                }
1703                if (dwrq->value & IW_AUTH_WPA_VERSION_WPA) {
1704                        assoc_req->secinfo.WPAenabled = 1;
1705                        assoc_req->secinfo.wep_enabled = 0;
1706                        assoc_req->secinfo.auth_mode = IW_AUTH_ALG_OPEN_SYSTEM;
1707                }
1708                if (dwrq->value & IW_AUTH_WPA_VERSION_WPA2) {
1709                        assoc_req->secinfo.WPA2enabled = 1;
1710                        assoc_req->secinfo.wep_enabled = 0;
1711                        assoc_req->secinfo.auth_mode = IW_AUTH_ALG_OPEN_SYSTEM;
1712                }
1713                updated = 1;
1714                break;
1715
1716        case IW_AUTH_80211_AUTH_ALG:
1717                if (dwrq->value & IW_AUTH_ALG_SHARED_KEY) {
1718                        assoc_req->secinfo.auth_mode = IW_AUTH_ALG_SHARED_KEY;
1719                } else if (dwrq->value & IW_AUTH_ALG_OPEN_SYSTEM) {
1720                        assoc_req->secinfo.auth_mode = IW_AUTH_ALG_OPEN_SYSTEM;
1721                } else if (dwrq->value & IW_AUTH_ALG_LEAP) {
1722                        assoc_req->secinfo.auth_mode = IW_AUTH_ALG_LEAP;
1723                } else {
1724                        ret = -EINVAL;
1725                }
1726                updated = 1;
1727                break;
1728
1729        case IW_AUTH_WPA_ENABLED:
1730                if (dwrq->value) {
1731                        if (!assoc_req->secinfo.WPAenabled &&
1732                            !assoc_req->secinfo.WPA2enabled) {
1733                                assoc_req->secinfo.WPAenabled = 1;
1734                                assoc_req->secinfo.WPA2enabled = 1;
1735                                assoc_req->secinfo.wep_enabled = 0;
1736                                assoc_req->secinfo.auth_mode = IW_AUTH_ALG_OPEN_SYSTEM;
1737                        }
1738                } else {
1739                        assoc_req->secinfo.WPAenabled = 0;
1740                        assoc_req->secinfo.WPA2enabled = 0;
1741                        disable_wpa (assoc_req);
1742                }
1743                updated = 1;
1744                break;
1745
1746        default:
1747                ret = -EOPNOTSUPP;
1748                break;
1749        }
1750
1751out:
1752        if (ret == 0) {
1753                if (updated)
1754                        set_bit(ASSOC_FLAG_SECINFO, &assoc_req->flags);
1755                wlan_postpone_association_work(priv);
1756        } else if (ret != -EOPNOTSUPP) {
1757                wlan_cancel_association_work(priv);
1758        }
1759        mutex_unlock(&adapter->lock);
1760
1761        lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
1762        return ret;
1763}
1764
1765static int wlan_get_auth(struct net_device *dev,
1766                         struct iw_request_info *info,
1767                         struct iw_param *dwrq,
1768                         char *extra)
1769{
1770        int ret = 0;
1771        wlan_private *priv = dev->priv;
1772        wlan_adapter *adapter = priv->adapter;
1773
1774        lbs_deb_enter(LBS_DEB_WEXT);
1775
1776        switch (dwrq->flags & IW_AUTH_INDEX) {
1777        case IW_AUTH_WPA_VERSION:
1778                dwrq->value = 0;
1779                if (adapter->secinfo.WPAenabled)
1780                        dwrq->value |= IW_AUTH_WPA_VERSION_WPA;
1781                if (adapter->secinfo.WPA2enabled)
1782                        dwrq->value |= IW_AUTH_WPA_VERSION_WPA2;
1783                if (!dwrq->value)
1784                        dwrq->value |= IW_AUTH_WPA_VERSION_DISABLED;
1785                break;
1786
1787        case IW_AUTH_80211_AUTH_ALG:
1788                dwrq->value = adapter->secinfo.auth_mode;
1789                break;
1790
1791        case IW_AUTH_WPA_ENABLED:
1792                if (adapter->secinfo.WPAenabled && adapter->secinfo.WPA2enabled)
1793                        dwrq->value = 1;
1794                break;
1795
1796        default:
1797                ret = -EOPNOTSUPP;
1798        }
1799
1800        lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
1801        return ret;
1802}
1803
1804
1805static int wlan_set_txpow(struct net_device *dev, struct iw_request_info *info,
1806                   struct iw_param *vwrq, char *extra)
1807{
1808        int ret = 0;
1809        wlan_private *priv = dev->priv;
1810        wlan_adapter *adapter = priv->adapter;
1811
1812        u16 dbm;
1813
1814        lbs_deb_enter(LBS_DEB_WEXT);
1815
1816        if (vwrq->disabled) {
1817                wlan_radio_ioctl(priv, RADIO_OFF);
1818                return 0;
1819        }
1820
1821        adapter->preamble = CMD_TYPE_AUTO_PREAMBLE;
1822
1823        wlan_radio_ioctl(priv, RADIO_ON);
1824
1825        /* Userspace check in iwrange if it should use dBm or mW,
1826         * therefore this should never happen... Jean II */
1827        if ((vwrq->flags & IW_TXPOW_TYPE) == IW_TXPOW_MWATT) {
1828                return -EOPNOTSUPP;
1829        } else
1830                dbm = (u16) vwrq->value;
1831
1832        /* auto tx power control */
1833
1834        if (vwrq->fixed == 0)
1835                dbm = 0xffff;
1836
1837        lbs_deb_wext("txpower set %d dbm\n", dbm);
1838
1839        ret = libertas_prepare_and_send_command(priv,
1840                                    CMD_802_11_RF_TX_POWER,
1841                                    CMD_ACT_TX_POWER_OPT_SET_LOW,
1842                                    CMD_OPTION_WAITFORRSP, 0, (void *)&dbm);
1843
1844        lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
1845        return ret;
1846}
1847
1848static int wlan_get_essid(struct net_device *dev, struct iw_request_info *info,
1849                   struct iw_point *dwrq, char *extra)
1850{
1851        wlan_private *priv = dev->priv;
1852        wlan_adapter *adapter = priv->adapter;
1853
1854        lbs_deb_enter(LBS_DEB_WEXT);
1855
1856        /*
1857         * Note : if dwrq->flags != 0, we should get the relevant SSID from
1858         * the SSID list...
1859         */
1860
1861        /*
1862         * Get the current SSID
1863         */
1864        if (adapter->connect_status == LIBERTAS_CONNECTED) {
1865                memcpy(extra, adapter->curbssparams.ssid,
1866                       adapter->curbssparams.ssid_len);
1867                extra[adapter->curbssparams.ssid_len] = '\0';
1868        } else {
1869                memset(extra, 0, 32);
1870                extra[adapter->curbssparams.ssid_len] = '\0';
1871        }
1872        /*
1873         * If none, we may want to get the one that was set
1874         */
1875
1876        dwrq->length = adapter->curbssparams.ssid_len;
1877
1878        dwrq->flags = 1;        /* active */
1879
1880        lbs_deb_leave(LBS_DEB_WEXT);
1881        return 0;
1882}
1883
1884static int wlan_set_essid(struct net_device *dev, struct iw_request_info *info,
1885                   struct iw_point *dwrq, char *extra)
1886{
1887        wlan_private *priv = dev->priv;
1888        wlan_adapter *adapter = priv->adapter;
1889        int ret = 0;
1890        u8 ssid[IW_ESSID_MAX_SIZE];
1891        u8 ssid_len = 0;
1892        struct assoc_request * assoc_req;
1893        int in_ssid_len = dwrq->length;
1894
1895        lbs_deb_enter(LBS_DEB_WEXT);
1896
1897        /* Check the size of the string */
1898        if (in_ssid_len > IW_ESSID_MAX_SIZE) {
1899                ret = -E2BIG;
1900                goto out;
1901        }
1902
1903        memset(&ssid, 0, sizeof(ssid));
1904
1905        if (!dwrq->flags || !in_ssid_len) {
1906                /* "any" SSID requested; leave SSID blank */
1907        } else {
1908                /* Specific SSID requested */
1909                memcpy(&ssid, extra, in_ssid_len);
1910                ssid_len = in_ssid_len;
1911        }
1912
1913        if (!ssid_len) {
1914                lbs_deb_wext("requested any SSID\n");
1915        } else {
1916                lbs_deb_wext("requested SSID '%s'\n",
1917                             escape_essid(ssid, ssid_len));
1918        }
1919
1920out:
1921        mutex_lock(&adapter->lock);
1922        if (ret == 0) {
1923                /* Get or create the current association request */
1924                assoc_req = wlan_get_association_request(adapter);
1925                if (!assoc_req) {
1926                        ret = -ENOMEM;
1927                } else {
1928                        /* Copy the SSID to the association request */
1929                        memcpy(&assoc_req->ssid, &ssid, IW_ESSID_MAX_SIZE);
1930                        assoc_req->ssid_len = ssid_len;
1931                        set_bit(ASSOC_FLAG_SSID, &assoc_req->flags);
1932                        wlan_postpone_association_work(priv);
1933                }
1934        }
1935
1936        /* Cancel the association request if there was an error */
1937        if (ret != 0) {
1938                wlan_cancel_association_work(priv);
1939        }
1940
1941        mutex_unlock(&adapter->lock);
1942
1943        lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
1944        return ret;
1945}
1946
1947/**
1948 *  @brief Connect to the AP or Ad-hoc Network with specific bssid
1949 *
1950 *  @param dev          A pointer to net_device structure
1951 *  @param info         A pointer to iw_request_info structure
1952 *  @param awrq         A pointer to iw_param structure
1953 *  @param extra        A pointer to extra data buf
1954 *  @return             0 --success, otherwise fail
1955 */
1956static int wlan_set_wap(struct net_device *dev, struct iw_request_info *info,
1957                 struct sockaddr *awrq, char *extra)
1958{
1959        wlan_private *priv = dev->priv;
1960        wlan_adapter *adapter = priv->adapter;
1961        struct assoc_request * assoc_req;
1962        int ret = 0;
1963        DECLARE_MAC_BUF(mac);
1964
1965        lbs_deb_enter(LBS_DEB_WEXT);
1966
1967        if (awrq->sa_family != ARPHRD_ETHER)
1968                return -EINVAL;
1969
1970        lbs_deb_wext("ASSOC: WAP: sa_data %s\n", print_mac(mac, awrq->sa_data));
1971
1972        mutex_lock(&adapter->lock);
1973
1974        /* Get or create the current association request */
1975        assoc_req = wlan_get_association_request(adapter);
1976        if (!assoc_req) {
1977                wlan_cancel_association_work(priv);
1978                ret = -ENOMEM;
1979        } else {
1980                /* Copy the BSSID to the association request */
1981                memcpy(&assoc_req->bssid, awrq->sa_data, ETH_ALEN);
1982                set_bit(ASSOC_FLAG_BSSID, &assoc_req->flags);
1983                wlan_postpone_association_work(priv);
1984        }
1985
1986        mutex_unlock(&adapter->lock);
1987
1988        return ret;
1989}
1990
1991void libertas_get_fwversion(wlan_adapter * adapter, char *fwversion, int maxlen)
1992{
1993        char fwver[32];
1994
1995        mutex_lock(&adapter->lock);
1996
1997        if (adapter->fwreleasenumber[3] == 0)
1998                sprintf(fwver, "%u.%u.%u",
1999                        adapter->fwreleasenumber[2],
2000                        adapter->fwreleasenumber[1],
2001                        adapter->fwreleasenumber[0]);
2002        else
2003                sprintf(fwver, "%u.%u.%u.p%u",
2004                        adapter->fwreleasenumber[2],
2005                        adapter->fwreleasenumber[1],
2006                        adapter->fwreleasenumber[0],
2007                        adapter->fwreleasenumber[3]);
2008
2009        mutex_unlock(&adapter->lock);
2010        snprintf(fwversion, maxlen, fwver);
2011}
2012
2013
2014/*
2015 * iwconfig settable callbacks
2016 */
2017static const iw_handler wlan_handler[] = {
2018        (iw_handler) NULL,      /* SIOCSIWCOMMIT */
2019        (iw_handler) wlan_get_name,     /* SIOCGIWNAME */
2020        (iw_handler) NULL,      /* SIOCSIWNWID */
2021        (iw_handler) NULL,      /* SIOCGIWNWID */
2022        (iw_handler) wlan_set_freq,     /* SIOCSIWFREQ */
2023        (iw_handler) wlan_get_freq,     /* SIOCGIWFREQ */
2024        (iw_handler) wlan_set_mode,     /* SIOCSIWMODE */
2025        (iw_handler) wlan_get_mode,     /* SIOCGIWMODE */
2026        (iw_handler) NULL,      /* SIOCSIWSENS */
2027        (iw_handler) NULL,      /* SIOCGIWSENS */
2028        (iw_handler) NULL,      /* SIOCSIWRANGE */
2029        (iw_handler) wlan_get_range,    /* SIOCGIWRANGE */
2030        (iw_handler) NULL,      /* SIOCSIWPRIV */
2031        (iw_handler) NULL,      /* SIOCGIWPRIV */
2032        (iw_handler) NULL,      /* SIOCSIWSTATS */
2033        (iw_handler) NULL,      /* SIOCGIWSTATS */
2034        iw_handler_set_spy,     /* SIOCSIWSPY */
2035        iw_handler_get_spy,     /* SIOCGIWSPY */
2036        iw_handler_set_thrspy,  /* SIOCSIWTHRSPY */
2037        iw_handler_get_thrspy,  /* SIOCGIWTHRSPY */
2038        (iw_handler) wlan_set_wap,      /* SIOCSIWAP */
2039        (iw_handler) wlan_get_wap,      /* SIOCGIWAP */
2040        (iw_handler) NULL,      /* SIOCSIWMLME */
2041        (iw_handler) NULL,      /* SIOCGIWAPLIST - deprecated */
2042        (iw_handler) libertas_set_scan, /* SIOCSIWSCAN */
2043        (iw_handler) libertas_get_scan, /* SIOCGIWSCAN */
2044        (iw_handler) wlan_set_essid,    /* SIOCSIWESSID */
2045        (iw_handler) wlan_get_essid,    /* SIOCGIWESSID */
2046        (iw_handler) wlan_set_nick,     /* SIOCSIWNICKN */
2047        (iw_handler) wlan_get_nick,     /* SIOCGIWNICKN */
2048        (iw_handler) NULL,      /* -- hole -- */
2049        (iw_handler) NULL,      /* -- hole -- */
2050        (iw_handler) wlan_set_rate,     /* SIOCSIWRATE */
2051        (iw_handler) wlan_get_rate,     /* SIOCGIWRATE */
2052        (iw_handler) wlan_set_rts,      /* SIOCSIWRTS */
2053        (iw_handler) wlan_get_rts,      /* SIOCGIWRTS */
2054        (iw_handler) wlan_set_frag,     /* SIOCSIWFRAG */
2055        (iw_handler) wlan_get_frag,     /* SIOCGIWFRAG */
2056        (iw_handler) wlan_set_txpow,    /* SIOCSIWTXPOW */
2057        (iw_handler) wlan_get_txpow,    /* SIOCGIWTXPOW */
2058        (iw_handler) wlan_set_retry,    /* SIOCSIWRETRY */
2059        (iw_handler) wlan_get_retry,    /* SIOCGIWRETRY */
2060        (iw_handler) wlan_set_encode,   /* SIOCSIWENCODE */
2061        (iw_handler) wlan_get_encode,   /* SIOCGIWENCODE */
2062        (iw_handler) wlan_set_power,    /* SIOCSIWPOWER */
2063        (iw_handler) wlan_get_power,    /* SIOCGIWPOWER */
2064        (iw_handler) NULL,      /* -- hole -- */
2065        (iw_handler) NULL,      /* -- hole -- */
2066        (iw_handler) wlan_set_genie,    /* SIOCSIWGENIE */
2067        (iw_handler) wlan_get_genie,    /* SIOCGIWGENIE */
2068        (iw_handler) wlan_set_auth,     /* SIOCSIWAUTH */
2069        (iw_handler) wlan_get_auth,     /* SIOCGIWAUTH */
2070        (iw_handler) wlan_set_encodeext,/* SIOCSIWENCODEEXT */
2071        (iw_handler) wlan_get_encodeext,/* SIOCGIWENCODEEXT */
2072        (iw_handler) NULL,              /* SIOCSIWPMKSA */
2073};
2074
2075static const iw_handler mesh_wlan_handler[] = {
2076        (iw_handler) NULL,      /* SIOCSIWCOMMIT */
2077        (iw_handler) wlan_get_name,     /* SIOCGIWNAME */
2078        (iw_handler) NULL,      /* SIOCSIWNWID */
2079        (iw_handler) NULL,      /* SIOCGIWNWID */
2080        (iw_handler) wlan_set_freq,     /* SIOCSIWFREQ */
2081        (iw_handler) wlan_get_freq,     /* SIOCGIWFREQ */
2082        (iw_handler) NULL,              /* SIOCSIWMODE */
2083        (iw_handler) mesh_wlan_get_mode,        /* SIOCGIWMODE */
2084        (iw_handler) NULL,      /* SIOCSIWSENS */
2085        (iw_handler) NULL,      /* SIOCGIWSENS */
2086        (iw_handler) NULL,      /* SIOCSIWRANGE */
2087        (iw_handler) wlan_get_range,    /* SIOCGIWRANGE */
2088        (iw_handler) NULL,      /* SIOCSIWPRIV */
2089        (iw_handler) NULL,      /* SIOCGIWPRIV */
2090        (iw_handler) NULL,      /* SIOCSIWSTATS */
2091        (iw_handler) NULL,      /* SIOCGIWSTATS */
2092        iw_handler_set_spy,     /* SIOCSIWSPY */
2093        iw_handler_get_spy,     /* SIOCGIWSPY */
2094        iw_handler_set_thrspy,  /* SIOCSIWTHRSPY */
2095        iw_handler_get_thrspy,  /* SIOCGIWTHRSPY */
2096        (iw_handler) NULL,      /* SIOCSIWAP */
2097        (iw_handler) NULL,      /* SIOCGIWAP */
2098        (iw_handler) NULL,      /* SIOCSIWMLME */
2099        (iw_handler) NULL,      /* SIOCGIWAPLIST - deprecated */
2100        (iw_handler) libertas_set_scan, /* SIOCSIWSCAN */
2101        (iw_handler) libertas_get_scan, /* SIOCGIWSCAN */
2102        (iw_handler) NULL,              /* SIOCSIWESSID */
2103        (iw_handler) NULL,              /* SIOCGIWESSID */
2104        (iw_handler) NULL,              /* SIOCSIWNICKN */
2105        (iw_handler) mesh_get_nick,     /* SIOCGIWNICKN */
2106        (iw_handler) NULL,      /* -- hole -- */
2107        (iw_handler) NULL,      /* -- hole -- */
2108        (iw_handler) wlan_set_rate,     /* SIOCSIWRATE */
2109        (iw_handler) wlan_get_rate,     /* SIOCGIWRATE */
2110        (iw_handler) wlan_set_rts,      /* SIOCSIWRTS */
2111        (iw_handler) wlan_get_rts,      /* SIOCGIWRTS */
2112        (iw_handler) wlan_set_frag,     /* SIOCSIWFRAG */
2113        (iw_handler) wlan_get_frag,     /* SIOCGIWFRAG */
2114        (iw_handler) wlan_set_txpow,    /* SIOCSIWTXPOW */
2115        (iw_handler) wlan_get_txpow,    /* SIOCGIWTXPOW */
2116        (iw_handler) wlan_set_retry,    /* SIOCSIWRETRY */
2117        (iw_handler) wlan_get_retry,    /* SIOCGIWRETRY */
2118        (iw_handler) wlan_set_encode,   /* SIOCSIWENCODE */
2119        (iw_handler) wlan_get_encode,   /* SIOCGIWENCODE */
2120        (iw_handler) wlan_set_power,    /* SIOCSIWPOWER */
2121        (iw_handler) wlan_get_power,    /* SIOCGIWPOWER */
2122        (iw_handler) NULL,      /* -- hole -- */
2123        (iw_handler) NULL,      /* -- hole -- */
2124        (iw_handler) wlan_set_genie,    /* SIOCSIWGENIE */
2125        (iw_handler) wlan_get_genie,    /* SIOCGIWGENIE */
2126        (iw_handler) wlan_set_auth,     /* SIOCSIWAUTH */
2127        (iw_handler) wlan_get_auth,     /* SIOCGIWAUTH */
2128        (iw_handler) wlan_set_encodeext,/* SIOCSIWENCODEEXT */
2129        (iw_handler) wlan_get_encodeext,/* SIOCGIWENCODEEXT */
2130        (iw_handler) NULL,              /* SIOCSIWPMKSA */
2131};
2132struct iw_handler_def libertas_handler_def = {
2133        .num_standard   = ARRAY_SIZE(wlan_handler),
2134        .standard       = (iw_handler *) wlan_handler,
2135        .get_wireless_stats = wlan_get_wireless_stats,
2136};
2137
2138struct iw_handler_def mesh_handler_def = {
2139        .num_standard   = ARRAY_SIZE(mesh_wlan_handler),
2140        .standard       = (iw_handler *) mesh_wlan_handler,
2141        .get_wireless_stats = wlan_get_wireless_stats,
2142};
2143