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hostap_ioctl.c

/* ioctl() (mostly Linux Wireless Extensions) routines for Host AP driver */

#include <linux/types.h>
#include <linux/ethtool.h>
#include <net/ieee80211_crypt.h>

#include "hostap_wlan.h"
#include "hostap.h"
#include "hostap_ap.h"

static struct iw_statistics *hostap_get_wireless_stats(struct net_device *dev)
{
      struct hostap_interface *iface;
      local_info_t *local;
      struct iw_statistics *wstats;

      iface = netdev_priv(dev);
      local = iface->local;

      /* Why are we doing that ? Jean II */
      if (iface->type != HOSTAP_INTERFACE_MAIN)
            return NULL;

      wstats = &local->wstats;

      wstats->status = 0;
      wstats->discard.code =
            local->comm_tallies.rx_discards_wep_undecryptable;
      wstats->discard.misc =
            local->comm_tallies.rx_fcs_errors +
            local->comm_tallies.rx_discards_no_buffer +
            local->comm_tallies.tx_discards_wrong_sa;

      wstats->discard.retries =
            local->comm_tallies.tx_retry_limit_exceeded;
      wstats->discard.fragment =
            local->comm_tallies.rx_message_in_bad_msg_fragments;

      if (local->iw_mode != IW_MODE_MASTER &&
          local->iw_mode != IW_MODE_REPEAT) {
            int update = 1;
#ifdef in_atomic
            /* RID reading might sleep and it must not be called in
             * interrupt context or while atomic. However, this
             * function seems to be called while atomic (at least in Linux
             * 2.5.59). Update signal quality values only if in suitable
             * context. Otherwise, previous values read from tick timer
             * will be used. */
            if (in_atomic())
                  update = 0;
#endif /* in_atomic */

            if (update && prism2_update_comms_qual(dev) == 0)
                  wstats->qual.updated = IW_QUAL_ALL_UPDATED |
                        IW_QUAL_DBM;

            wstats->qual.qual = local->comms_qual;
            wstats->qual.level = local->avg_signal;
            wstats->qual.noise = local->avg_noise;
      } else {
            wstats->qual.qual = 0;
            wstats->qual.level = 0;
            wstats->qual.noise = 0;
            wstats->qual.updated = IW_QUAL_ALL_INVALID;
      }

      return wstats;
}


static int prism2_get_datarates(struct net_device *dev, u8 *rates)
{
      struct hostap_interface *iface;
      local_info_t *local;
      u8 buf[12];
      int len;
      u16 val;

      iface = netdev_priv(dev);
      local = iface->local;

      len = local->func->get_rid(dev, HFA384X_RID_SUPPORTEDDATARATES, buf,
                           sizeof(buf), 0);
      if (len < 2)
            return 0;

      val = le16_to_cpu(*(u16 *) buf); /* string length */

      if (len - 2 < val || val > 10)
            return 0;

      memcpy(rates, buf + 2, val);
      return val;
}


static int prism2_get_name(struct net_device *dev,
                     struct iw_request_info *info,
                     char *name, char *extra)
{
      u8 rates[10];
      int len, i, over2 = 0;

      len = prism2_get_datarates(dev, rates);

      for (i = 0; i < len; i++) {
            if (rates[i] == 0x0b || rates[i] == 0x16) {
                  over2 = 1;
                  break;
            }
      }

      strcpy(name, over2 ? "IEEE 802.11b" : "IEEE 802.11-DS");

      return 0;
}


static void prism2_crypt_delayed_deinit(local_info_t *local,
                              struct ieee80211_crypt_data **crypt)
{
      struct ieee80211_crypt_data *tmp;
      unsigned long flags;

      tmp = *crypt;
      *crypt = NULL;

      if (tmp == NULL)
            return;

      /* must not run ops->deinit() while there may be pending encrypt or
       * decrypt operations. Use a list of delayed deinits to avoid needing
       * locking. */

      spin_lock_irqsave(&local->lock, flags);
      list_add(&tmp->list, &local->crypt_deinit_list);
      if (!timer_pending(&local->crypt_deinit_timer)) {
            local->crypt_deinit_timer.expires = jiffies + HZ;
            add_timer(&local->crypt_deinit_timer);
      }
      spin_unlock_irqrestore(&local->lock, flags);
}


static int prism2_ioctl_siwencode(struct net_device *dev,
                          struct iw_request_info *info,
                          struct iw_point *erq, char *keybuf)
{
      struct hostap_interface *iface;
      local_info_t *local;
      int i;
      struct ieee80211_crypt_data **crypt;

      iface = netdev_priv(dev);
      local = iface->local;

      i = erq->flags & IW_ENCODE_INDEX;
      if (i < 1 || i > 4)
            i = local->tx_keyidx;
      else
            i--;
      if (i < 0 || i >= WEP_KEYS)
            return -EINVAL;

      crypt = &local->crypt[i];

      if (erq->flags & IW_ENCODE_DISABLED) {
            if (*crypt)
                  prism2_crypt_delayed_deinit(local, crypt);
            goto done;
      }

      if (*crypt != NULL && (*crypt)->ops != NULL &&
          strcmp((*crypt)->ops->name, "WEP") != 0) {
            /* changing to use WEP; deinit previously used algorithm */
            prism2_crypt_delayed_deinit(local, crypt);
      }

      if (*crypt == NULL) {
            struct ieee80211_crypt_data *new_crypt;

            /* take WEP into use */
            new_crypt = kzalloc(sizeof(struct ieee80211_crypt_data),
                        GFP_KERNEL);
            if (new_crypt == NULL)
                  return -ENOMEM;
            new_crypt->ops = ieee80211_get_crypto_ops("WEP");
            if (!new_crypt->ops) {
                  request_module("ieee80211_crypt_wep");
                  new_crypt->ops = ieee80211_get_crypto_ops("WEP");
            }
            if (new_crypt->ops)
                  new_crypt->priv = new_crypt->ops->init(i);
            if (!new_crypt->ops || !new_crypt->priv) {
                  kfree(new_crypt);
                  new_crypt = NULL;

                  printk(KERN_WARNING "%s: could not initialize WEP: "
                         "load module hostap_crypt_wep.o\n",
                         dev->name);
                  return -EOPNOTSUPP;
            }
            *crypt = new_crypt;
      }

      if (erq->length > 0) {
            int len = erq->length <= 5 ? 5 : 13;
            int first = 1, j;
            if (len > erq->length)
                  memset(keybuf + erq->length, 0, len - erq->length);
            (*crypt)->ops->set_key(keybuf, len, NULL, (*crypt)->priv);
            for (j = 0; j < WEP_KEYS; j++) {
                  if (j != i && local->crypt[j]) {
                        first = 0;
                        break;
                  }
            }
            if (first)
                  local->tx_keyidx = i;
      } else {
            /* No key data - just set the default TX key index */
            local->tx_keyidx = i;
      }

 done:
      local->open_wep = erq->flags & IW_ENCODE_OPEN;

      if (hostap_set_encryption(local)) {
            printk(KERN_DEBUG "%s: set_encryption failed\n", dev->name);
            return -EINVAL;
      }

      /* Do not reset port0 if card is in Managed mode since resetting will
       * generate new IEEE 802.11 authentication which may end up in looping
       * with IEEE 802.1X. Prism2 documentation seem to require port reset
       * after WEP configuration. However, keys are apparently changed at
       * least in Managed mode. */
      if (local->iw_mode != IW_MODE_INFRA && local->func->reset_port(dev)) {
            printk(KERN_DEBUG "%s: reset_port failed\n", dev->name);
            return -EINVAL;
      }

      return 0;
}


static int prism2_ioctl_giwencode(struct net_device *dev,
                          struct iw_request_info *info,
                          struct iw_point *erq, char *key)
{
      struct hostap_interface *iface;
      local_info_t *local;
      int i, len;
      u16 val;
      struct ieee80211_crypt_data *crypt;

      iface = netdev_priv(dev);
      local = iface->local;

      i = erq->flags & IW_ENCODE_INDEX;
      if (i < 1 || i > 4)
            i = local->tx_keyidx;
      else
            i--;
      if (i < 0 || i >= WEP_KEYS)
            return -EINVAL;

      crypt = local->crypt[i];
      erq->flags = i + 1;

      if (crypt == NULL || crypt->ops == NULL) {
            erq->length = 0;
            erq->flags |= IW_ENCODE_DISABLED;
            return 0;
      }

      if (strcmp(crypt->ops->name, "WEP") != 0) {
            /* only WEP is supported with wireless extensions, so just
             * report that encryption is used */
            erq->length = 0;
            erq->flags |= IW_ENCODE_ENABLED;
            return 0;
      }

      /* Reads from HFA384X_RID_CNFDEFAULTKEY* return bogus values, so show
       * the keys from driver buffer */
      len = crypt->ops->get_key(key, WEP_KEY_LEN, NULL, crypt->priv);
      erq->length = (len >= 0 ? len : 0);

      if (local->func->get_rid(dev, HFA384X_RID_CNFWEPFLAGS, &val, 2, 1) < 0)
      {
            printk("CNFWEPFLAGS reading failed\n");
            return -EOPNOTSUPP;
      }
      le16_to_cpus(&val);
      if (val & HFA384X_WEPFLAGS_PRIVACYINVOKED)
            erq->flags |= IW_ENCODE_ENABLED;
      else
            erq->flags |= IW_ENCODE_DISABLED;
      if (val & HFA384X_WEPFLAGS_EXCLUDEUNENCRYPTED)
            erq->flags |= IW_ENCODE_RESTRICTED;
      else
            erq->flags |= IW_ENCODE_OPEN;

      return 0;
}


static int hostap_set_rate(struct net_device *dev)
{
      struct hostap_interface *iface;
      local_info_t *local;
      int ret, basic_rates;

      iface = netdev_priv(dev);
      local = iface->local;

      basic_rates = local->basic_rates & local->tx_rate_control;
      if (!basic_rates || basic_rates != local->basic_rates) {
            printk(KERN_INFO "%s: updating basic rate set automatically "
                   "to match with the new supported rate set\n",
                   dev->name);
            if (!basic_rates)
                  basic_rates = local->tx_rate_control;

            local->basic_rates = basic_rates;
            if (hostap_set_word(dev, HFA384X_RID_CNFBASICRATES,
                            basic_rates))
                  printk(KERN_WARNING "%s: failed to set "
                         "cnfBasicRates\n", dev->name);
      }

      ret = (hostap_set_word(dev, HFA384X_RID_TXRATECONTROL,
                         local->tx_rate_control) ||
             hostap_set_word(dev, HFA384X_RID_CNFSUPPORTEDRATES,
                         local->tx_rate_control) ||
             local->func->reset_port(dev));

      if (ret) {
            printk(KERN_WARNING "%s: TXRateControl/cnfSupportedRates "
                   "setting to 0x%x failed\n",
                   dev->name, local->tx_rate_control);
      }

      /* Update TX rate configuration for all STAs based on new operational
       * rate set. */
      hostap_update_rates(local);

      return ret;
}


static int prism2_ioctl_siwrate(struct net_device *dev,
                        struct iw_request_info *info,
                        struct iw_param *rrq, char *extra)
{
      struct hostap_interface *iface;
      local_info_t *local;

      iface = netdev_priv(dev);
      local = iface->local;

      if (rrq->fixed) {
            switch (rrq->value) {
            case 11000000:
                  local->tx_rate_control = HFA384X_RATES_11MBPS;
                  break;
            case 5500000:
                  local->tx_rate_control = HFA384X_RATES_5MBPS;
                  break;
            case 2000000:
                  local->tx_rate_control = HFA384X_RATES_2MBPS;
                  break;
            case 1000000:
                  local->tx_rate_control = HFA384X_RATES_1MBPS;
                  break;
            default:
                  local->tx_rate_control = HFA384X_RATES_1MBPS |
                        HFA384X_RATES_2MBPS | HFA384X_RATES_5MBPS |
                        HFA384X_RATES_11MBPS;
                  break;
            }
      } else {
            switch (rrq->value) {
            case 11000000:
                  local->tx_rate_control = HFA384X_RATES_1MBPS |
                        HFA384X_RATES_2MBPS | HFA384X_RATES_5MBPS |
                        HFA384X_RATES_11MBPS;
                  break;
            case 5500000:
                  local->tx_rate_control = HFA384X_RATES_1MBPS |
                        HFA384X_RATES_2MBPS | HFA384X_RATES_5MBPS;
                  break;
            case 2000000:
                  local->tx_rate_control = HFA384X_RATES_1MBPS |
                        HFA384X_RATES_2MBPS;
                  break;
            case 1000000:
                  local->tx_rate_control = HFA384X_RATES_1MBPS;
                  break;
            default:
                  local->tx_rate_control = HFA384X_RATES_1MBPS |
                        HFA384X_RATES_2MBPS | HFA384X_RATES_5MBPS |
                        HFA384X_RATES_11MBPS;
                  break;
            }
      }

      return hostap_set_rate(dev);
}


static int prism2_ioctl_giwrate(struct net_device *dev,
                        struct iw_request_info *info,
                        struct iw_param *rrq, char *extra)
{
      u16 val;
      struct hostap_interface *iface;
      local_info_t *local;
      int ret = 0;

      iface = netdev_priv(dev);
      local = iface->local;

      if (local->func->get_rid(dev, HFA384X_RID_TXRATECONTROL, &val, 2, 1) <
          0)
            return -EINVAL;

      if ((val & 0x1) && (val > 1))
            rrq->fixed = 0;
      else
            rrq->fixed = 1;

      if (local->iw_mode == IW_MODE_MASTER && local->ap != NULL &&
          !local->fw_tx_rate_control) {
            /* HFA384X_RID_CURRENTTXRATE seems to always be 2 Mbps in
             * Host AP mode, so use the recorded TX rate of the last sent
             * frame */
            rrq->value = local->ap->last_tx_rate > 0 ?
                  local->ap->last_tx_rate * 100000 : 11000000;
            return 0;
      }

      if (local->func->get_rid(dev, HFA384X_RID_CURRENTTXRATE, &val, 2, 1) <
          0)
            return -EINVAL;

      switch (val) {
      case HFA384X_RATES_1MBPS:
            rrq->value = 1000000;
            break;
      case HFA384X_RATES_2MBPS:
            rrq->value = 2000000;
            break;
      case HFA384X_RATES_5MBPS:
            rrq->value = 5500000;
            break;
      case HFA384X_RATES_11MBPS:
            rrq->value = 11000000;
            break;
      default:
            /* should not happen */
            rrq->value = 11000000;
            ret = -EINVAL;
            break;
      }

      return ret;
}


static int prism2_ioctl_siwsens(struct net_device *dev,
                        struct iw_request_info *info,
                        struct iw_param *sens, char *extra)
{
      struct hostap_interface *iface;
      local_info_t *local;

      iface = netdev_priv(dev);
      local = iface->local;

      /* Set the desired AP density */
      if (sens->value < 1 || sens->value > 3)
            return -EINVAL;

      if (hostap_set_word(dev, HFA384X_RID_CNFSYSTEMSCALE, sens->value) ||
          local->func->reset_port(dev))
            return -EINVAL;

      return 0;
}

static int prism2_ioctl_giwsens(struct net_device *dev,
                        struct iw_request_info *info,
                        struct iw_param *sens, char *extra)
{
      struct hostap_interface *iface;
      local_info_t *local;
      u16 val;

      iface = netdev_priv(dev);
      local = iface->local;

      /* Get the current AP density */
      if (local->func->get_rid(dev, HFA384X_RID_CNFSYSTEMSCALE, &val, 2, 1) <
          0)
            return -EINVAL;

      sens->value = __le16_to_cpu(val);
      sens->fixed = 1;

      return 0;
}


/* Deprecated in new wireless extension API */
static int prism2_ioctl_giwaplist(struct net_device *dev,
                          struct iw_request_info *info,
                          struct iw_point *data, char *extra)
{
      struct hostap_interface *iface;
      local_info_t *local;
      struct sockaddr *addr;
      struct iw_quality *qual;

      iface = netdev_priv(dev);
      local = iface->local;

      if (local->iw_mode != IW_MODE_MASTER) {
            printk(KERN_DEBUG "SIOCGIWAPLIST is currently only supported "
                   "in Host AP mode\n");
            data->length = 0;
            return -EOPNOTSUPP;
      }

      addr = kmalloc(sizeof(struct sockaddr) * IW_MAX_AP, GFP_KERNEL);
      qual = kmalloc(sizeof(struct iw_quality) * IW_MAX_AP, GFP_KERNEL);
      if (addr == NULL || qual == NULL) {
            kfree(addr);
            kfree(qual);
            data->length = 0;
            return -ENOMEM;
      }

      data->length = prism2_ap_get_sta_qual(local, addr, qual, IW_MAX_AP, 1);

      memcpy(extra, &addr, sizeof(struct sockaddr) * data->length);
      data->flags = 1; /* has quality information */
      memcpy(extra + sizeof(struct sockaddr) * data->length, &qual,
             sizeof(struct iw_quality) * data->length);

      kfree(addr);
      kfree(qual);
      return 0;
}


static int prism2_ioctl_siwrts(struct net_device *dev,
                         struct iw_request_info *info,
                         struct iw_param *rts, char *extra)
{
      struct hostap_interface *iface;
      local_info_t *local;
      u16 val;

      iface = netdev_priv(dev);
      local = iface->local;

      if (rts->disabled)
            val = __constant_cpu_to_le16(2347);
      else if (rts->value < 0 || rts->value > 2347)
            return -EINVAL;
      else
            val = __cpu_to_le16(rts->value);

      if (local->func->set_rid(dev, HFA384X_RID_RTSTHRESHOLD, &val, 2) ||
          local->func->reset_port(dev))
            return -EINVAL;

      local->rts_threshold = rts->value;

      return 0;
}

static int prism2_ioctl_giwrts(struct net_device *dev,
                         struct iw_request_info *info,
                         struct iw_param *rts, char *extra)
{
      struct hostap_interface *iface;
      local_info_t *local;
      u16 val;

      iface = netdev_priv(dev);
      local = iface->local;

      if (local->func->get_rid(dev, HFA384X_RID_RTSTHRESHOLD, &val, 2, 1) <
          0)
            return -EINVAL;

      rts->value = __le16_to_cpu(val);
      rts->disabled = (rts->value == 2347);
      rts->fixed = 1;

      return 0;
}


static int prism2_ioctl_siwfrag(struct net_device *dev,
                        struct iw_request_info *info,
                        struct iw_param *rts, char *extra)
{
      struct hostap_interface *iface;
      local_info_t *local;
      u16 val;

      iface = netdev_priv(dev);
      local = iface->local;

      if (rts->disabled)
            val = __constant_cpu_to_le16(2346);
      else if (rts->value < 256 || rts->value > 2346)
            return -EINVAL;
      else
            val = __cpu_to_le16(rts->value & ~0x1); /* even numbers only */

      local->fragm_threshold = rts->value & ~0x1;
      if (local->func->set_rid(dev, HFA384X_RID_FRAGMENTATIONTHRESHOLD, &val,
                         2)
          || local->func->reset_port(dev))
            return -EINVAL;

      return 0;
}

static int prism2_ioctl_giwfrag(struct net_device *dev,
                        struct iw_request_info *info,
                        struct iw_param *rts, char *extra)
{
      struct hostap_interface *iface;
      local_info_t *local;
      u16 val;

      iface = netdev_priv(dev);
      local = iface->local;

      if (local->func->get_rid(dev, HFA384X_RID_FRAGMENTATIONTHRESHOLD,
                         &val, 2, 1) < 0)
            return -EINVAL;

      rts->value = __le16_to_cpu(val);
      rts->disabled = (rts->value == 2346);
      rts->fixed = 1;

      return 0;
}


#ifndef PRISM2_NO_STATION_MODES
static int hostap_join_ap(struct net_device *dev)
{
      struct hostap_interface *iface;
      local_info_t *local;
      struct hfa384x_join_request req;
      unsigned long flags;
      int i;
      struct hfa384x_hostscan_result *entry;
      DECLARE_MAC_BUF(mac);

      iface = netdev_priv(dev);
      local = iface->local;

      memcpy(req.bssid, local->preferred_ap, ETH_ALEN);
      req.channel = 0;

      spin_lock_irqsave(&local->lock, flags);
      for (i = 0; i < local->last_scan_results_count; i++) {
            if (!local->last_scan_results)
                  break;
            entry = &local->last_scan_results[i];
            if (memcmp(local->preferred_ap, entry->bssid, ETH_ALEN) == 0) {
                  req.channel = entry->chid;
                  break;
            }
      }
      spin_unlock_irqrestore(&local->lock, flags);

      if (local->func->set_rid(dev, HFA384X_RID_JOINREQUEST, &req,
                         sizeof(req))) {
            printk(KERN_DEBUG "%s: JoinRequest %s"
                   " failed\n",
                   dev->name, print_mac(mac, local->preferred_ap));
            return -1;
      }

      printk(KERN_DEBUG "%s: Trying to join BSSID %s\n",
             dev->name, print_mac(mac, local->preferred_ap));

      return 0;
}
#endif /* PRISM2_NO_STATION_MODES */


static int prism2_ioctl_siwap(struct net_device *dev,
                        struct iw_request_info *info,
                        struct sockaddr *ap_addr, char *extra)
{
#ifdef PRISM2_NO_STATION_MODES
      return -EOPNOTSUPP;
#else /* PRISM2_NO_STATION_MODES */
      struct hostap_interface *iface;
      local_info_t *local;

      iface = netdev_priv(dev);
      local = iface->local;

      memcpy(local->preferred_ap, &ap_addr->sa_data, ETH_ALEN);

      if (local->host_roaming == 1 && local->iw_mode == IW_MODE_INFRA) {
            struct hfa384x_scan_request scan_req;
            memset(&scan_req, 0, sizeof(scan_req));
            scan_req.channel_list = __constant_cpu_to_le16(0x3fff);
            scan_req.txrate = __constant_cpu_to_le16(HFA384X_RATES_1MBPS);
            if (local->func->set_rid(dev, HFA384X_RID_SCANREQUEST,
                               &scan_req, sizeof(scan_req))) {
                  printk(KERN_DEBUG "%s: ScanResults request failed - "
                         "preferred AP delayed to next unsolicited "
                         "scan\n", dev->name);
            }
      } else if (local->host_roaming == 2 &&
               local->iw_mode == IW_MODE_INFRA) {
            if (hostap_join_ap(dev))
                  return -EINVAL;
      } else {
            printk(KERN_DEBUG "%s: Preferred AP (SIOCSIWAP) is used only "
                   "in Managed mode when host_roaming is enabled\n",
                   dev->name);
      }

      return 0;
#endif /* PRISM2_NO_STATION_MODES */
}

static int prism2_ioctl_giwap(struct net_device *dev,
                        struct iw_request_info *info,
                        struct sockaddr *ap_addr, char *extra)
{
      struct hostap_interface *iface;
      local_info_t *local;

      iface = netdev_priv(dev);
      local = iface->local;

      ap_addr->sa_family = ARPHRD_ETHER;
      switch (iface->type) {
      case HOSTAP_INTERFACE_AP:
            memcpy(&ap_addr->sa_data, dev->dev_addr, ETH_ALEN);
            break;
      case HOSTAP_INTERFACE_STA:
            memcpy(&ap_addr->sa_data, local->assoc_ap_addr, ETH_ALEN);
            break;
      case HOSTAP_INTERFACE_WDS:
            memcpy(&ap_addr->sa_data, iface->u.wds.remote_addr, ETH_ALEN);
            break;
      default:
            if (local->func->get_rid(dev, HFA384X_RID_CURRENTBSSID,
                               &ap_addr->sa_data, ETH_ALEN, 1) < 0)
                  return -EOPNOTSUPP;

            /* local->bssid is also updated in LinkStatus handler when in
             * station mode */
            memcpy(local->bssid, &ap_addr->sa_data, ETH_ALEN);
            break;
      }

      return 0;
}


static int prism2_ioctl_siwnickn(struct net_device *dev,
                         struct iw_request_info *info,
                         struct iw_point *data, char *nickname)
{
      struct hostap_interface *iface;
      local_info_t *local;

      iface = netdev_priv(dev);
      local = iface->local;

      memset(local->name, 0, sizeof(local->name));
      memcpy(local->name, nickname, data->length);
      local->name_set = 1;

      if (hostap_set_string(dev, HFA384X_RID_CNFOWNNAME, local->name) ||
          local->func->reset_port(dev))
            return -EINVAL;

      return 0;
}

static int prism2_ioctl_giwnickn(struct net_device *dev,
                         struct iw_request_info *info,
                         struct iw_point *data, char *nickname)
{
      struct hostap_interface *iface;
      local_info_t *local;
      int len;
      char name[MAX_NAME_LEN + 3];
      u16 val;

      iface = netdev_priv(dev);
      local = iface->local;

      len = local->func->get_rid(dev, HFA384X_RID_CNFOWNNAME,
                           &name, MAX_NAME_LEN + 2, 0);
      val = __le16_to_cpu(*(u16 *) name);
      if (len > MAX_NAME_LEN + 2 || len < 0 || val > MAX_NAME_LEN)
            return -EOPNOTSUPP;

      name[val + 2] = '\0';
      data->length = val + 1;
      memcpy(nickname, name + 2, val + 1);

      return 0;
}


static int prism2_ioctl_siwfreq(struct net_device *dev,
                        struct iw_request_info *info,
                        struct iw_freq *freq, char *extra)
{
      struct hostap_interface *iface;
      local_info_t *local;

      iface = netdev_priv(dev);
      local = iface->local;

      /* freq => chan. */
      if (freq->e == 1 &&
          freq->m / 100000 >= freq_list[0] &&
          freq->m / 100000 <= freq_list[FREQ_COUNT - 1]) {
            int ch;
            int fr = freq->m / 100000;
            for (ch = 0; ch < FREQ_COUNT; ch++) {
                  if (fr == freq_list[ch]) {
                        freq->e = 0;
                        freq->m = ch + 1;
                        break;
                  }
            }
      }

      if (freq->e != 0 || freq->m < 1 || freq->m > FREQ_COUNT ||
          !(local->channel_mask & (1 << (freq->m - 1))))
            return -EINVAL;

      local->channel = freq->m; /* channel is used in prism2_setup_rids() */
      if (hostap_set_word(dev, HFA384X_RID_CNFOWNCHANNEL, local->channel) ||
          local->func->reset_port(dev))
            return -EINVAL;

      return 0;
}

static int prism2_ioctl_giwfreq(struct net_device *dev,
                        struct iw_request_info *info,
                        struct iw_freq *freq, char *extra)
{
      struct hostap_interface *iface;
      local_info_t *local;
      u16 val;

      iface = netdev_priv(dev);
      local = iface->local;

      if (local->func->get_rid(dev, HFA384X_RID_CURRENTCHANNEL, &val, 2, 1) <
          0)
            return -EINVAL;

      le16_to_cpus(&val);
      if (val < 1 || val > FREQ_COUNT)
            return -EINVAL;

      freq->m = freq_list[val - 1] * 100000;
      freq->e = 1;

      return 0;
}


static void hostap_monitor_set_type(local_info_t *local)
{
      struct net_device *dev = local->ddev;

      if (dev == NULL)
            return;

      if (local->monitor_type == PRISM2_MONITOR_PRISM ||
          local->monitor_type == PRISM2_MONITOR_CAPHDR) {
            dev->type = ARPHRD_IEEE80211_PRISM;
      } else {
            dev->type = ARPHRD_IEEE80211;
      }
}


static int prism2_ioctl_siwessid(struct net_device *dev,
                         struct iw_request_info *info,
                         struct iw_point *data, char *ssid)
{
      struct hostap_interface *iface;
      local_info_t *local;

      iface = netdev_priv(dev);
      local = iface->local;

      if (iface->type == HOSTAP_INTERFACE_WDS)
            return -EOPNOTSUPP;

      if (data->flags == 0)
            ssid[0] = '\0'; /* ANY */

      if (local->iw_mode == IW_MODE_MASTER && ssid[0] == '\0') {
            /* Setting SSID to empty string seems to kill the card in
             * Host AP mode */
            printk(KERN_DEBUG "%s: Host AP mode does not support "
                   "'Any' essid\n", dev->name);
            return -EINVAL;
      }

      memcpy(local->essid, ssid, data->length);
      local->essid[data->length] = '\0';

      if ((!local->fw_ap &&
           hostap_set_string(dev, HFA384X_RID_CNFDESIREDSSID, local->essid))
          || hostap_set_string(dev, HFA384X_RID_CNFOWNSSID, local->essid) ||
          local->func->reset_port(dev))
            return -EINVAL;

      return 0;
}

static int prism2_ioctl_giwessid(struct net_device *dev,
                         struct iw_request_info *info,
                         struct iw_point *data, char *essid)
{
      struct hostap_interface *iface;
      local_info_t *local;
      u16 val;

      iface = netdev_priv(dev);
      local = iface->local;

      if (iface->type == HOSTAP_INTERFACE_WDS)
            return -EOPNOTSUPP;

      data->flags = 1; /* active */
      if (local->iw_mode == IW_MODE_MASTER) {
            data->length = strlen(local->essid);
            memcpy(essid, local->essid, IW_ESSID_MAX_SIZE);
      } else {
            int len;
            char ssid[MAX_SSID_LEN + 2];
            memset(ssid, 0, sizeof(ssid));
            len = local->func->get_rid(dev, HFA384X_RID_CURRENTSSID,
                                 &ssid, MAX_SSID_LEN + 2, 0);
            val = __le16_to_cpu(*(u16 *) ssid);
            if (len > MAX_SSID_LEN + 2 || len < 0 || val > MAX_SSID_LEN) {
                  return -EOPNOTSUPP;
            }
            data->length = val;
            memcpy(essid, ssid + 2, IW_ESSID_MAX_SIZE);
      }

      return 0;
}


static int prism2_ioctl_giwrange(struct net_device *dev,
                         struct iw_request_info *info,
                         struct iw_point *data, char *extra)
{
      struct hostap_interface *iface;
      local_info_t *local;
      struct iw_range *range = (struct iw_range *) extra;
      u8 rates[10];
      u16 val;
      int i, len, over2;

      iface = netdev_priv(dev);
      local = iface->local;

      data->length = sizeof(struct iw_range);
      memset(range, 0, sizeof(struct iw_range));

      /* TODO: could fill num_txpower and txpower array with
       * something; however, there are 128 different values.. */

      range->txpower_capa = IW_TXPOW_DBM;

      if (local->iw_mode == IW_MODE_INFRA || local->iw_mode == IW_MODE_ADHOC)
      {
            range->min_pmp = 1 * 1024;
            range->max_pmp = 65535 * 1024;
            range->min_pmt = 1 * 1024;
            range->max_pmt = 1000 * 1024;
            range->pmp_flags = IW_POWER_PERIOD;
            range->pmt_flags = IW_POWER_TIMEOUT;
            range->pm_capa = IW_POWER_PERIOD | IW_POWER_TIMEOUT |
                  IW_POWER_UNICAST_R | IW_POWER_ALL_R;
      }

      range->we_version_compiled = WIRELESS_EXT;
      range->we_version_source = 18;

      range->retry_capa = IW_RETRY_LIMIT;
      range->retry_flags = IW_RETRY_LIMIT;
      range->min_retry = 0;
      range->max_retry = 255;

      range->num_channels = FREQ_COUNT;

      val = 0;
      for (i = 0; i < FREQ_COUNT; i++) {
            if (local->channel_mask & (1 << i)) {
                  range->freq[val].i = i + 1;
                  range->freq[val].m = freq_list[i] * 100000;
                  range->freq[val].e = 1;
                  val++;
            }
            if (val == IW_MAX_FREQUENCIES)
                  break;
      }
      range->num_frequency = val;

      if (local->sta_fw_ver >= PRISM2_FW_VER(1,3,1)) {
            range->max_qual.qual = 70; /* what is correct max? This was not
                                  * documented exactly. At least
                                  * 69 has been observed. */
            range->max_qual.level = 0; /* dB */
            range->max_qual.noise = 0; /* dB */

            /* What would be suitable values for "average/typical" qual? */
            range->avg_qual.qual = 20;
            range->avg_qual.level = -60;
            range->avg_qual.noise = -95;
      } else {
            range->max_qual.qual = 92; /* 0 .. 92 */
            range->max_qual.level = 154; /* 27 .. 154 */
            range->max_qual.noise = 154; /* 27 .. 154 */
      }
      range->sensitivity = 3;

      range->max_encoding_tokens = WEP_KEYS;
      range->num_encoding_sizes = 2;
      range->encoding_size[0] = 5;
      range->encoding_size[1] = 13;

      over2 = 0;
      len = prism2_get_datarates(dev, rates);
      range->num_bitrates = 0;
      for (i = 0; i < len; i++) {
            if (range->num_bitrates < IW_MAX_BITRATES) {
                  range->bitrate[range->num_bitrates] =
                        rates[i] * 500000;
                  range->num_bitrates++;
            }
            if (rates[i] == 0x0b || rates[i] == 0x16)
                  over2 = 1;
      }
      /* estimated maximum TCP throughput values (bps) */
      range->throughput = over2 ? 5500000 : 1500000;

      range->min_rts = 0;
      range->max_rts = 2347;
      range->min_frag = 256;
      range->max_frag = 2346;

      /* Event capability (kernel + driver) */
      range->event_capa[0] = (IW_EVENT_CAPA_K_0 |
                        IW_EVENT_CAPA_MASK(SIOCGIWTHRSPY) |
                        IW_EVENT_CAPA_MASK(SIOCGIWAP) |
                        IW_EVENT_CAPA_MASK(SIOCGIWSCAN));
      range->event_capa[1] = IW_EVENT_CAPA_K_1;
      range->event_capa[4] = (IW_EVENT_CAPA_MASK(IWEVTXDROP) |
                        IW_EVENT_CAPA_MASK(IWEVCUSTOM) |
                        IW_EVENT_CAPA_MASK(IWEVREGISTERED) |
                        IW_EVENT_CAPA_MASK(IWEVEXPIRED));

      range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_WPA2 |
            IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP;

      return 0;
}


static int hostap_monitor_mode_enable(local_info_t *local)
{
      struct net_device *dev = local->dev;

      printk(KERN_DEBUG "Enabling monitor mode\n");
      hostap_monitor_set_type(local);

      if (hostap_set_word(dev, HFA384X_RID_CNFPORTTYPE,
                      HFA384X_PORTTYPE_PSEUDO_IBSS)) {
            printk(KERN_DEBUG "Port type setting for monitor mode "
                   "failed\n");
            return -EOPNOTSUPP;
      }

      /* Host decrypt is needed to get the IV and ICV fields;
       * however, monitor mode seems to remove WEP flag from frame
       * control field */
      if (hostap_set_word(dev, HFA384X_RID_CNFWEPFLAGS,
                      HFA384X_WEPFLAGS_HOSTENCRYPT |
                      HFA384X_WEPFLAGS_HOSTDECRYPT)) {
            printk(KERN_DEBUG "WEP flags setting failed\n");
            return -EOPNOTSUPP;
      }

      if (local->func->reset_port(dev) ||
          local->func->cmd(dev, HFA384X_CMDCODE_TEST |
                       (HFA384X_TEST_MONITOR << 8),
                       0, NULL, NULL)) {
            printk(KERN_DEBUG "Setting monitor mode failed\n");
            return -EOPNOTSUPP;
      }

      return 0;
}


static int hostap_monitor_mode_disable(local_info_t *local)
{
      struct net_device *dev = local->ddev;

      if (dev == NULL)
            return -1;

      printk(KERN_DEBUG "%s: Disabling monitor mode\n", dev->name);
      dev->type = ARPHRD_ETHER;

      if (local->func->cmd(dev, HFA384X_CMDCODE_TEST |
                       (HFA384X_TEST_STOP << 8),
                       0, NULL, NULL))
            return -1;
      return hostap_set_encryption(local);
}


static int prism2_ioctl_siwmode(struct net_device *dev,
                        struct iw_request_info *info,
                        __u32 *mode, char *extra)
{
      struct hostap_interface *iface;
      local_info_t *local;
      int double_reset = 0;

      iface = netdev_priv(dev);
      local = iface->local;

      if (*mode != IW_MODE_ADHOC && *mode != IW_MODE_INFRA &&
          *mode != IW_MODE_MASTER && *mode != IW_MODE_REPEAT &&
          *mode != IW_MODE_MONITOR)
            return -EOPNOTSUPP;

#ifdef PRISM2_NO_STATION_MODES
      if (*mode == IW_MODE_ADHOC || *mode == IW_MODE_INFRA)
            return -EOPNOTSUPP;
#endif /* PRISM2_NO_STATION_MODES */

      if (*mode == local->iw_mode)
            return 0;

      if (*mode == IW_MODE_MASTER && local->essid[0] == '\0') {
            printk(KERN_WARNING "%s: empty SSID not allowed in Master "
                   "mode\n", dev->name);
            return -EINVAL;
      }

      if (local->iw_mode == IW_MODE_MONITOR)
            hostap_monitor_mode_disable(local);

      if ((local->iw_mode == IW_MODE_ADHOC ||
           local->iw_mode == IW_MODE_MONITOR) && *mode == IW_MODE_MASTER) {
            /* There seems to be a firmware bug in at least STA f/w v1.5.6
             * that leaves beacon frames to use IBSS type when moving from
             * IBSS to Host AP mode. Doing double Port0 reset seems to be
             * enough to workaround this. */
            double_reset = 1;
      }

      printk(KERN_DEBUG "prism2: %s: operating mode changed "
             "%d -> %d\n", dev->name, local->iw_mode, *mode);
      local->iw_mode = *mode;

      if (local->iw_mode == IW_MODE_MONITOR)
            hostap_monitor_mode_enable(local);
      else if (local->iw_mode == IW_MODE_MASTER && !local->host_encrypt &&
             !local->fw_encrypt_ok) {
            printk(KERN_DEBUG "%s: defaulting to host-based encryption as "
                   "a workaround for firmware bug in Host AP mode WEP\n",
                   dev->name);
            local->host_encrypt = 1;
      }

      if (hostap_set_word(dev, HFA384X_RID_CNFPORTTYPE,
                      hostap_get_porttype(local)))
            return -EOPNOTSUPP;

      if (local->func->reset_port(dev))
            return -EINVAL;
      if (double_reset && local->func->reset_port(dev))
            return -EINVAL;

      if (local->iw_mode != IW_MODE_INFRA && local->iw_mode != IW_MODE_ADHOC)
      {
            /* netif_carrier is used only in client modes for now, so make
             * sure carrier is on when moving to non-client modes. */
            netif_carrier_on(local->dev);
            netif_carrier_on(local->ddev);
      }
      return 0;
}


static int prism2_ioctl_giwmode(struct net_device *dev,
                        struct iw_request_info *info,
                        __u32 *mode, char *extra)
{
      struct hostap_interface *iface;
      local_info_t *local;

      iface = netdev_priv(dev);
      local = iface->local;

      switch (iface->type) {
      case HOSTAP_INTERFACE_STA:
            *mode = IW_MODE_INFRA;
            break;
      case HOSTAP_INTERFACE_WDS:
            *mode = IW_MODE_REPEAT;
            break;
      default:
            *mode = local->iw_mode;
            break;
      }
      return 0;
}


static int prism2_ioctl_siwpower(struct net_device *dev,
                         struct iw_request_info *info,
                         struct iw_param *wrq, char *extra)
{
#ifdef PRISM2_NO_STATION_MODES
      return -EOPNOTSUPP;
#else /* PRISM2_NO_STATION_MODES */
      int ret = 0;

      if (wrq->disabled)
            return hostap_set_word(dev, HFA384X_RID_CNFPMENABLED, 0);

      switch (wrq->flags & IW_POWER_MODE) {
      case IW_POWER_UNICAST_R:
            ret = hostap_set_word(dev, HFA384X_RID_CNFMULTICASTRECEIVE, 0);
            if (ret)
                  return ret;
            ret = hostap_set_word(dev, HFA384X_RID_CNFPMENABLED, 1);
            if (ret)
                  return ret;
            break;
      case IW_POWER_ALL_R:
            ret = hostap_set_word(dev, HFA384X_RID_CNFMULTICASTRECEIVE, 1);
            if (ret)
                  return ret;
            ret = hostap_set_word(dev, HFA384X_RID_CNFPMENABLED, 1);
            if (ret)
                  return ret;
            break;
      case IW_POWER_ON:
            break;
      default:
            return -EINVAL;
      }

      if (wrq->flags & IW_POWER_TIMEOUT) {
            ret = hostap_set_word(dev, HFA384X_RID_CNFPMENABLED, 1);
            if (ret)
                  return ret;
            ret = hostap_set_word(dev, HFA384X_RID_CNFPMHOLDOVERDURATION,
                              wrq->value / 1024);
            if (ret)
                  return ret;
      }
      if (wrq->flags & IW_POWER_PERIOD) {
            ret = hostap_set_word(dev, HFA384X_RID_CNFPMENABLED, 1);
            if (ret)
                  return ret;
            ret = hostap_set_word(dev, HFA384X_RID_CNFMAXSLEEPDURATION,
                              wrq->value / 1024);
            if (ret)
                  return ret;
      }

      return ret;
#endif /* PRISM2_NO_STATION_MODES */
}


static int prism2_ioctl_giwpower(struct net_device *dev,
                         struct iw_request_info *info,
                         struct iw_param *rrq, char *extra)
{
#ifdef PRISM2_NO_STATION_MODES
      return -EOPNOTSUPP;
#else /* PRISM2_NO_STATION_MODES */
      struct hostap_interface *iface;
      local_info_t *local;
      u16 enable, mcast;

      iface = netdev_priv(dev);
      local = iface->local;

      if (local->func->get_rid(dev, HFA384X_RID_CNFPMENABLED, &enable, 2, 1)
          < 0)
            return -EINVAL;

      if (!__le16_to_cpu(enable)) {
            rrq->disabled = 1;
            return 0;
      }

      rrq->disabled = 0;

      if ((rrq->flags & IW_POWER_TYPE) == IW_POWER_TIMEOUT) {
            u16 timeout;
            if (local->func->get_rid(dev,
                               HFA384X_RID_CNFPMHOLDOVERDURATION,
                               &timeout, 2, 1) < 0)
                  return -EINVAL;

            rrq->flags = IW_POWER_TIMEOUT;
            rrq->value = __le16_to_cpu(timeout) * 1024;
      } else {
            u16 period;
            if (local->func->get_rid(dev, HFA384X_RID_CNFMAXSLEEPDURATION,
                               &period, 2, 1) < 0)
                  return -EINVAL;

            rrq->flags = IW_POWER_PERIOD;
            rrq->value = __le16_to_cpu(period) * 1024;
      }

      if (local->func->get_rid(dev, HFA384X_RID_CNFMULTICASTRECEIVE, &mcast,
                         2, 1) < 0)
            return -EINVAL;

      if (__le16_to_cpu(mcast))
            rrq->flags |= IW_POWER_ALL_R;
      else
            rrq->flags |= IW_POWER_UNICAST_R;

      return 0;
#endif /* PRISM2_NO_STATION_MODES */
}


static int prism2_ioctl_siwretry(struct net_device *dev,
                         struct iw_request_info *info,
                         struct iw_param *rrq, char *extra)
{
      struct hostap_interface *iface;
      local_info_t *local;

      iface = netdev_priv(dev);
      local = iface->local;

      if (rrq->disabled)
            return -EINVAL;

      /* setting retry limits is not supported with the current station
       * firmware code; simulate this with alternative retry count for now */
      if (rrq->flags == IW_RETRY_LIMIT) {
            if (rrq->value < 0) {
                  /* disable manual retry count setting and use firmware
                   * defaults */
                  local->manual_retry_count = -1;
                  local->tx_control &= ~HFA384X_TX_CTRL_ALT_RTRY;
            } else {
                  if (hostap_set_word(dev, HFA384X_RID_CNFALTRETRYCOUNT,
                                  rrq->value)) {
                        printk(KERN_DEBUG "%s: Alternate retry count "
                               "setting to %d failed\n",
                               dev->name, rrq->value);
                        return -EOPNOTSUPP;
                  }

                  local->manual_retry_count = rrq->value;
                  local->tx_control |= HFA384X_TX_CTRL_ALT_RTRY;
            }
            return 0;
      }

      return -EOPNOTSUPP;

#if 0
      /* what could be done, if firmware would support this.. */

      if (rrq->flags & IW_RETRY_LIMIT) {
            if (rrq->flags & IW_RETRY_LONG)
                  HFA384X_RID_LONGRETRYLIMIT = rrq->value;
            else if (rrq->flags & IW_RETRY_SHORT)
                  HFA384X_RID_SHORTRETRYLIMIT = rrq->value;
            else {
                  HFA384X_RID_LONGRETRYLIMIT = rrq->value;
                  HFA384X_RID_SHORTRETRYLIMIT = rrq->value;
            }

      }

      if (rrq->flags & IW_RETRY_LIFETIME) {
            HFA384X_RID_MAXTRANSMITLIFETIME = rrq->value / 1024;
      }

      return 0;
#endif /* 0 */
}

static int prism2_ioctl_giwretry(struct net_device *dev,
                         struct iw_request_info *info,
                         struct iw_param *rrq, char *extra)
{
      struct hostap_interface *iface;
      local_info_t *local;
      u16 shortretry, longretry, lifetime, altretry;

      iface = netdev_priv(dev);
      local = iface->local;

      if (local->func->get_rid(dev, HFA384X_RID_SHORTRETRYLIMIT, &shortretry,
                         2, 1) < 0 ||
          local->func->get_rid(dev, HFA384X_RID_LONGRETRYLIMIT, &longretry,
                         2, 1) < 0 ||
          local->func->get_rid(dev, HFA384X_RID_MAXTRANSMITLIFETIME,
                         &lifetime, 2, 1) < 0)
            return -EINVAL;

      le16_to_cpus(&shortretry);
      le16_to_cpus(&longretry);
      le16_to_cpus(&lifetime);

      rrq->disabled = 0;

      if ((rrq->flags & IW_RETRY_TYPE) == IW_RETRY_LIFETIME) {
            rrq->flags = IW_RETRY_LIFETIME;
            rrq->value = lifetime * 1024;
      } else {
            if (local->manual_retry_count >= 0) {
                  rrq->flags = IW_RETRY_LIMIT;
                  if (local->func->get_rid(dev,
                                     HFA384X_RID_CNFALTRETRYCOUNT,
                                     &altretry, 2, 1) >= 0)
                        rrq->value = le16_to_cpu(altretry);
                  else
                        rrq->value = local->manual_retry_count;
            } else if ((rrq->flags & IW_RETRY_LONG)) {
                  rrq->flags = IW_RETRY_LIMIT | IW_RETRY_LONG;
                  rrq->value = longretry;
            } else {
                  rrq->flags = IW_RETRY_LIMIT;
                  rrq->value = shortretry;
                  if (shortretry != longretry)
                        rrq->flags |= IW_RETRY_SHORT;
            }
      }
      return 0;
}


/* Note! This TX power controlling is experimental and should not be used in
 * production use. It just sets raw power register and does not use any kind of
 * feedback information from the measured TX power (CR58). This is now
 * commented out to make sure that it is not used by accident. TX power
 * configuration will be enabled again after proper algorithm using feedback
 * has been implemented. */

#ifdef RAW_TXPOWER_SETTING
/* Map HFA386x's CR31 to and from dBm with some sort of ad hoc mapping..
 * This version assumes following mapping:
 * CR31 is 7-bit value with -64 to +63 range.
 * -64 is mapped into +20dBm and +63 into -43dBm.
 * This is certainly not an exact mapping for every card, but at least
 * increasing dBm value should correspond to increasing TX power.
 */

static int prism2_txpower_hfa386x_to_dBm(u16 val)
{
      signed char tmp;

      if (val > 255)
            val = 255;

      tmp = val;
      tmp >>= 2;

      return -12 - tmp;
}

static u16 prism2_txpower_dBm_to_hfa386x(int val)
{
      signed char tmp;

      if (val > 20)
            return 128;
      else if (val < -43)
            return 127;

      tmp = val;
      tmp = -12 - tmp;
      tmp <<= 2;

      return (unsigned char) tmp;
}
#endif /* RAW_TXPOWER_SETTING */


static int prism2_ioctl_siwtxpow(struct net_device *dev,
                         struct iw_request_info *info,
                         struct iw_param *rrq, char *extra)
{
      struct hostap_interface *iface;
      local_info_t *local;
#ifdef RAW_TXPOWER_SETTING
      char *tmp;
#endif
      u16 val;
      int ret = 0;

      iface = netdev_priv(dev);
      local = iface->local;

      if (rrq->disabled) {
            if (local->txpower_type != PRISM2_TXPOWER_OFF) {
                  val = 0xff; /* use all standby and sleep modes */
                  ret = local->func->cmd(dev, HFA384X_CMDCODE_WRITEMIF,
                                     HFA386X_CR_A_D_TEST_MODES2,
                                     &val, NULL);
                  printk(KERN_DEBUG "%s: Turning radio off: %s\n",
                         dev->name, ret ? "failed" : "OK");
                  local->txpower_type = PRISM2_TXPOWER_OFF;
            }
            return (ret ? -EOPNOTSUPP : 0);
      }

      if (local->txpower_type == PRISM2_TXPOWER_OFF) {
            val = 0; /* disable all standby and sleep modes */
            ret = local->func->cmd(dev, HFA384X_CMDCODE_WRITEMIF,
                               HFA386X_CR_A_D_TEST_MODES2, &val, NULL);
            printk(KERN_DEBUG "%s: Turning radio on: %s\n",
                   dev->name, ret ? "failed" : "OK");
            local->txpower_type = PRISM2_TXPOWER_UNKNOWN;
      }

#ifdef RAW_TXPOWER_SETTING
      if (!rrq->fixed && local->txpower_type != PRISM2_TXPOWER_AUTO) {
            printk(KERN_DEBUG "Setting ALC on\n");
            val = HFA384X_TEST_CFG_BIT_ALC;
            local->func->cmd(dev, HFA384X_CMDCODE_TEST |
                         (HFA384X_TEST_CFG_BITS << 8), 1, &val, NULL);
            local->txpower_type = PRISM2_TXPOWER_AUTO;
            return 0;
      }

      if (local->txpower_type != PRISM2_TXPOWER_FIXED) {
            printk(KERN_DEBUG "Setting ALC off\n");
            val = HFA384X_TEST_CFG_BIT_ALC;
            local->func->cmd(dev, HFA384X_CMDCODE_TEST |
                         (HFA384X_TEST_CFG_BITS << 8), 0, &val, NULL);
                  local->txpower_type = PRISM2_TXPOWER_FIXED;
      }

      if (rrq->flags == IW_TXPOW_DBM)
            tmp = "dBm";
      else if (rrq->flags == IW_TXPOW_MWATT)
            tmp = "mW";
      else
            tmp = "UNKNOWN";
      printk(KERN_DEBUG "Setting TX power to %d %s\n", rrq->value, tmp);

      if (rrq->flags != IW_TXPOW_DBM) {
            printk("SIOCSIWTXPOW with mW is not supported; use dBm\n");
            return -EOPNOTSUPP;
      }

      local->txpower = rrq->value;
      val = prism2_txpower_dBm_to_hfa386x(local->txpower);
      if (local->func->cmd(dev, HFA384X_CMDCODE_WRITEMIF,
                       HFA386X_CR_MANUAL_TX_POWER, &val, NULL))
            ret = -EOPNOTSUPP;
#else /* RAW_TXPOWER_SETTING */
      if (rrq->fixed)
            ret = -EOPNOTSUPP;
#endif /* RAW_TXPOWER_SETTING */

      return ret;
}

static int prism2_ioctl_giwtxpow(struct net_device *dev,
                         struct iw_request_info *info,
                         struct iw_param *rrq, char *extra)
{
#ifdef RAW_TXPOWER_SETTING
      struct hostap_interface *iface;
      local_info_t *local;
      u16 resp0;

      iface = netdev_priv(dev);
      local = iface->local;

      rrq->flags = IW_TXPOW_DBM;
      rrq->disabled = 0;
      rrq->fixed = 0;

      if (local->txpower_type == PRISM2_TXPOWER_AUTO) {
            if (local->func->cmd(dev, HFA384X_CMDCODE_READMIF,
                             HFA386X_CR_MANUAL_TX_POWER,
                             NULL, &resp0) == 0) {
                  rrq->value = prism2_txpower_hfa386x_to_dBm(resp0);
            } else {
                  /* Could not get real txpower; guess 15 dBm */
                  rrq->value = 15;
            }
      } else if (local->txpower_type == PRISM2_TXPOWER_OFF) {
            rrq->value = 0;
            rrq->disabled = 1;
      } else if (local->txpower_type == PRISM2_TXPOWER_FIXED) {
            rrq->value = local->txpower;
            rrq->fixed = 1;
      } else {
            printk("SIOCGIWTXPOW - unknown txpower_type=%d\n",
                   local->txpower_type);
      }
      return 0;
#else /* RAW_TXPOWER_SETTING */
      return -EOPNOTSUPP;
#endif /* RAW_TXPOWER_SETTING */
}


#ifndef PRISM2_NO_STATION_MODES

/* HostScan request works with and without host_roaming mode. In addition, it
 * does not break current association. However, it requires newer station
 * firmware version (>= 1.3.1) than scan request. */
static int prism2_request_hostscan(struct net_device *dev,
                           u8 *ssid, u8 ssid_len)
{
      struct hostap_interface *iface;
      local_info_t *local;
      struct hfa384x_hostscan_request scan_req;

      iface = netdev_priv(dev);
      local = iface->local;

      memset(&scan_req, 0, sizeof(scan_req));
      scan_req.channel_list = cpu_to_le16(local->channel_mask &
                                  local->scan_channel_mask);
      scan_req.txrate = __constant_cpu_to_le16(HFA384X_RATES_1MBPS);
      if (ssid) {
            if (ssid_len > 32)
                  return -EINVAL;
            scan_req.target_ssid_len = cpu_to_le16(ssid_len);
            memcpy(scan_req.target_ssid, ssid, ssid_len);
      }

      if (local->func->set_rid(dev, HFA384X_RID_HOSTSCAN, &scan_req,
                         sizeof(scan_req))) {
            printk(KERN_DEBUG "%s: HOSTSCAN failed\n", dev->name);
            return -EINVAL;
      }
      return 0;
}


static int prism2_request_scan(struct net_device *dev)
{
      struct hostap_interface *iface;
      local_info_t *local;
      struct hfa384x_scan_request scan_req;
      int ret = 0;

      iface = netdev_priv(dev);
      local = iface->local;

      memset(&scan_req, 0, sizeof(scan_req));
      scan_req.channel_list = cpu_to_le16(local->channel_mask &
                                  local->scan_channel_mask);
      scan_req.txrate = __constant_cpu_to_le16(HFA384X_RATES_1MBPS);

      /* FIX:
       * It seems to be enough to set roaming mode for a short moment to
       * host-based and then setup scanrequest data and return the mode to
       * firmware-based.
       *
       * Master mode would need to drop to Managed mode for a short while
       * to make scanning work.. Or sweep through the different channels and
       * use passive scan based on beacons. */

      if (!local->host_roaming)
            hostap_set_word(dev, HFA384X_RID_CNFROAMINGMODE,
                        HFA384X_ROAMING_HOST);

      if (local->func->set_rid(dev, HFA384X_RID_SCANREQUEST, &scan_req,
                         sizeof(scan_req))) {
            printk(KERN_DEBUG "SCANREQUEST failed\n");
            ret = -EINVAL;
      }

      if (!local->host_roaming)
            hostap_set_word(dev, HFA384X_RID_CNFROAMINGMODE,
                        HFA384X_ROAMING_FIRMWARE);

      return 0;
}

#else /* !PRISM2_NO_STATION_MODES */

static inline int prism2_request_hostscan(struct net_device *dev,
                                u8 *ssid, u8 ssid_len)
{
      return -EOPNOTSUPP;
}


static inline int prism2_request_scan(struct net_device *dev)
{
      return -EOPNOTSUPP;
}

#endif /* !PRISM2_NO_STATION_MODES */


static int prism2_ioctl_siwscan(struct net_device *dev,
                        struct iw_request_info *info,
                        struct iw_point *data, char *extra)
{
      struct hostap_interface *iface;
      local_info_t *local;
      int ret;
      u8 *ssid = NULL, ssid_len = 0;
      struct iw_scan_req *req = (struct iw_scan_req *) extra;

      iface = netdev_priv(dev);
      local = iface->local;

      if (data->length < sizeof(struct iw_scan_req))
            req = NULL;

      if (local->iw_mode == IW_MODE_MASTER) {
            /* In master mode, we just return the results of our local
             * tables, so we don't need to start anything...
             * Jean II */
            data->length = 0;
            return 0;
      }

      if (!local->dev_enabled)
            return -ENETDOWN;

      if (req && data->flags & IW_SCAN_THIS_ESSID) {
            ssid = req->essid;
            ssid_len = req->essid_len;

            if (ssid_len &&
                ((local->iw_mode != IW_MODE_INFRA &&
                  local->iw_mode != IW_MODE_ADHOC) ||
                 (local->sta_fw_ver < PRISM2_FW_VER(1,3,1))))
                  return -EOPNOTSUPP;
      }

      if (local->sta_fw_ver >= PRISM2_FW_VER(1,3,1))
            ret = prism2_request_hostscan(dev, ssid, ssid_len);
      else
            ret = prism2_request_scan(dev);

      if (ret == 0)
            local->scan_timestamp = jiffies;

      /* Could inquire F101, F103 or wait for SIOCGIWSCAN and read RID */

      return ret;
}


#ifndef PRISM2_NO_STATION_MODES
static char * __prism2_translate_scan(local_info_t *local,
                              struct hfa384x_hostscan_result *scan,
                              struct hostap_bss_info *bss,
                              char *current_ev, char *end_buf)
{
      int i, chan;
      struct iw_event iwe;
      char *current_val;
      u16 capabilities;
      u8 *pos;
      u8 *ssid, *bssid;
      size_t ssid_len;
      char *buf;

      if (bss) {
            ssid = bss->ssid;
            ssid_len = bss->ssid_len;
            bssid = bss->bssid;
      } else {
            ssid = scan->ssid;
            ssid_len = le16_to_cpu(scan->ssid_len);
            bssid = scan->bssid;
      }
      if (ssid_len > 32)
            ssid_len = 32;

      /* First entry *MUST* be the AP MAC address */
      memset(&iwe, 0, sizeof(iwe));
      iwe.cmd = SIOCGIWAP;
      iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
      memcpy(iwe.u.ap_addr.sa_data, bssid, ETH_ALEN);
      current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe,
                                IW_EV_ADDR_LEN);

      /* Other entries will be displayed in the order we give them */

      memset(&iwe, 0, sizeof(iwe));
      iwe.cmd = SIOCGIWESSID;
      iwe.u.data.length = ssid_len;
      iwe.u.data.flags = 1;
      current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe, ssid);

      memset(&iwe, 0, sizeof(iwe));
      iwe.cmd = SIOCGIWMODE;
      if (bss) {
            capabilities = bss->capab_info;
      } else {
            capabilities = le16_to_cpu(scan->capability);
      }
      if (capabilities & (WLAN_CAPABILITY_ESS |
                      WLAN_CAPABILITY_IBSS)) {
            if (capabilities & WLAN_CAPABILITY_ESS)
                  iwe.u.mode = IW_MODE_MASTER;
            else
                  iwe.u.mode = IW_MODE_ADHOC;
            current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe,
                                      IW_EV_UINT_LEN);
      }

      memset(&iwe, 0, sizeof(iwe));
      iwe.cmd = SIOCGIWFREQ;
      if (scan) {
            chan = le16_to_cpu(scan->chid);
      } else if (bss) {
            chan = bss->chan;
      } else {
            chan = 0;
      }

      if (chan > 0) {
            iwe.u.freq.m = freq_list[chan - 1] * 100000;
            iwe.u.freq.e = 1;
            current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe,
                                      IW_EV_FREQ_LEN);
      }

      if (scan) {
            memset(&iwe, 0, sizeof(iwe));
            iwe.cmd = IWEVQUAL;
            if (local->last_scan_type == PRISM2_HOSTSCAN) {
                  iwe.u.qual.level = le16_to_cpu(scan->sl);
                  iwe.u.qual.noise = le16_to_cpu(scan->anl);
            } else {
                  iwe.u.qual.level =
                        HFA384X_LEVEL_TO_dBm(le16_to_cpu(scan->sl));
                  iwe.u.qual.noise =
                        HFA384X_LEVEL_TO_dBm(le16_to_cpu(scan->anl));
            }
            iwe.u.qual.updated = IW_QUAL_LEVEL_UPDATED
                  | IW_QUAL_NOISE_UPDATED
                  | IW_QUAL_QUAL_INVALID
                  | IW_QUAL_DBM;
            current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe,
                                      IW_EV_QUAL_LEN);
      }

      memset(&iwe, 0, sizeof(iwe));
      iwe.cmd = SIOCGIWENCODE;
      if (capabilities & WLAN_CAPABILITY_PRIVACY)
            iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
      else
            iwe.u.data.flags = IW_ENCODE_DISABLED;
      iwe.u.data.length = 0;
      current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe, "");

      /* TODO: add SuppRates into BSS table */
      if (scan) {
            memset(&iwe, 0, sizeof(iwe));
            iwe.cmd = SIOCGIWRATE;
            current_val = current_ev + IW_EV_LCP_LEN;
            pos = scan->sup_rates;
            for (i = 0; i < sizeof(scan->sup_rates); i++) {
                  if (pos[i] == 0)
                        break;
                  /* Bit rate given in 500 kb/s units (+ 0x80) */
                  iwe.u.bitrate.value = ((pos[i] & 0x7f) * 500000);
                  current_val = iwe_stream_add_value(
                        current_ev, current_val, end_buf, &iwe,
                        IW_EV_PARAM_LEN);
            }
            /* Check if we added any event */
            if ((current_val - current_ev) > IW_EV_LCP_LEN)
                  current_ev = current_val;
      }

      /* TODO: add BeaconInt,resp_rate,atim into BSS table */
      buf = kmalloc(MAX_WPA_IE_LEN * 2 + 30, GFP_ATOMIC);
      if (buf && scan) {
            memset(&iwe, 0, sizeof(iwe));
            iwe.cmd = IWEVCUSTOM;
            sprintf(buf, "bcn_int=%d", le16_to_cpu(scan->beacon_interval));
            iwe.u.data.length = strlen(buf);
            current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe,
                                      buf);

            memset(&iwe, 0, sizeof(iwe));
            iwe.cmd = IWEVCUSTOM;
            sprintf(buf, "resp_rate=%d", le16_to_cpu(scan->rate));
            iwe.u.data.length = strlen(buf);
            current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe,
                                      buf);

            if (local->last_scan_type == PRISM2_HOSTSCAN &&
                (capabilities & WLAN_CAPABILITY_IBSS)) {
                  memset(&iwe, 0, sizeof(iwe));
                  iwe.cmd = IWEVCUSTOM;
                  sprintf(buf, "atim=%d", le16_to_cpu(scan->atim));
                  iwe.u.data.length = strlen(buf);
                  current_ev = iwe_stream_add_point(current_ev, end_buf,
                                            &iwe, buf);
            }
      }
      kfree(buf);

      if (bss && bss->wpa_ie_len > 0 && bss->wpa_ie_len <= MAX_WPA_IE_LEN) {
            memset(&iwe, 0, sizeof(iwe));
            iwe.cmd = IWEVGENIE;
            iwe.u.data.length = bss->wpa_ie_len;
            current_ev = iwe_stream_add_point(
                  current_ev, end_buf, &iwe, bss->wpa_ie);
      }

      if (bss && bss->rsn_ie_len > 0 && bss->rsn_ie_len <= MAX_WPA_IE_LEN) {
            memset(&iwe, 0, sizeof(iwe));
            iwe.cmd = IWEVGENIE;
            iwe.u.data.length = bss->rsn_ie_len;
            current_ev = iwe_stream_add_point(
                  current_ev, end_buf, &iwe, bss->rsn_ie);
      }

      return current_ev;
}


/* Translate scan data returned from the card to a card independant
 * format that the Wireless Tools will understand - Jean II */
static inline int prism2_translate_scan(local_info_t *local,
                              char *buffer, int buflen)
{
      struct hfa384x_hostscan_result *scan;
      int entry, hostscan;
      char *current_ev = buffer;
      char *end_buf = buffer + buflen;
      struct list_head *ptr;

      spin_lock_bh(&local->lock);

      list_for_each(ptr, &local->bss_list) {
            struct hostap_bss_info *bss;
            bss = list_entry(ptr, struct hostap_bss_info, list);
            bss->included = 0;
      }

      hostscan = local->last_scan_type == PRISM2_HOSTSCAN;
      for (entry = 0; entry < local->last_scan_results_count; entry++) {
            int found = 0;
            scan = &local->last_scan_results[entry];

            /* Report every SSID if the AP is using multiple SSIDs. If no
             * BSS record is found (e.g., when WPA mode is disabled),
             * report the AP once. */
            list_for_each(ptr, &local->bss_list) {
                  struct hostap_bss_info *bss;
                  bss = list_entry(ptr, struct hostap_bss_info, list);
                  if (memcmp(bss->bssid, scan->bssid, ETH_ALEN) == 0) {
                        bss->included = 1;
                        current_ev = __prism2_translate_scan(
                              local, scan, bss, current_ev, end_buf);
                        found++;
                  }
            }
            if (!found) {
                  current_ev = __prism2_translate_scan(
                        local, scan, NULL, current_ev, end_buf);
            }
            /* Check if there is space for one more entry */
            if ((end_buf - current_ev) <= IW_EV_ADDR_LEN) {
                  /* Ask user space to try again with a bigger buffer */
                  spin_unlock_bh(&local->lock);
                  return -E2BIG;
            }
      }

      /* Prism2 firmware has limits (32 at least in some versions) for number
       * of BSSes in scan results. Extend this limit by using local BSS list.
       */
      list_for_each(ptr, &local->bss_list) {
            struct hostap_bss_info *bss;
            bss = list_entry(ptr, struct hostap_bss_info, list);
            if (bss->included)
                  continue;
            current_ev = __prism2_translate_scan(local, NULL, bss,
                                         current_ev, end_buf);
            /* Check if there is space for one more entry */
            if ((end_buf - current_ev) <= IW_EV_ADDR_LEN) {
                  /* Ask user space to try again with a bigger buffer */
                  spin_unlock_bh(&local->lock);
                  return -E2BIG;
            }
      }

      spin_unlock_bh(&local->lock);

      return current_ev - buffer;
}
#endif /* PRISM2_NO_STATION_MODES */


static inline int prism2_ioctl_giwscan_sta(struct net_device *dev,
                                 struct iw_request_info *info,
                                 struct iw_point *data, char *extra)
{
#ifdef PRISM2_NO_STATION_MODES
      return -EOPNOTSUPP;
#else /* PRISM2_NO_STATION_MODES */
      struct hostap_interface *iface;
      local_info_t *local;
      int res;

      iface = netdev_priv(dev);
      local = iface->local;

      /* Wait until the scan is finished. We can probably do better
       * than that - Jean II */
      if (local->scan_timestamp &&
          time_before(jiffies, local->scan_timestamp + 3 * HZ)) {
            /* Important note : we don't want to block the caller
             * until results are ready for various reasons.
             * First, managing wait queues is complex and racy
             * (there may be multiple simultaneous callers).
             * Second, we grab some rtnetlink lock before comming
             * here (in dev_ioctl()).
             * Third, the caller can wait on the Wireless Event
             * - Jean II */
            return -EAGAIN;
      }
      local->scan_timestamp = 0;

      res = prism2_translate_scan(local, extra, data->length);

      if (res >= 0) {
            data->length = res;
            return 0;
      } else {
            data->length = 0;
            return res;
      }
#endif /* PRISM2_NO_STATION_MODES */
}


static int prism2_ioctl_giwscan(struct net_device *dev,
                        struct iw_request_info *info,
                        struct iw_point *data, char *extra)
{
      struct hostap_interface *iface;
      local_info_t *local;
      int res;

      iface = netdev_priv(dev);
      local = iface->local;

      if (local->iw_mode == IW_MODE_MASTER) {
            /* In MASTER mode, it doesn't make sense to go around
             * scanning the frequencies and make the stations we serve
             * wait when what the user is really interested about is the
             * list of stations and access points we are talking to.
             * So, just extract results from our cache...
             * Jean II */

            /* Translate to WE format */
            res = prism2_ap_translate_scan(dev, extra);
            if (res >= 0) {
                  printk(KERN_DEBUG "Scan result translation succeeded "
                         "(length=%d)\n", res);
                  data->length = res;
                  return 0;
            } else {
                  printk(KERN_DEBUG
                         "Scan result translation failed (res=%d)\n",
                         res);
                  data->length = 0;
                  return res;
            }
      } else {
            /* Station mode */
            return prism2_ioctl_giwscan_sta(dev, info, data, extra);
      }
}


static const struct iw_priv_args prism2_priv[] = {
      { PRISM2_IOCTL_MONITOR,
        IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "monitor" },
      { PRISM2_IOCTL_READMIF,
        IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1,
        IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, "readmif" },
      { PRISM2_IOCTL_WRITEMIF,
        IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 2, 0, "writemif" },
      { PRISM2_IOCTL_RESET,
        IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "reset" },
      { PRISM2_IOCTL_INQUIRE,
        IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "inquire" },
      { PRISM2_IOCTL_SET_RID_WORD,
        IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 2, 0, "set_rid_word" },
      { PRISM2_IOCTL_MACCMD,
        IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "maccmd" },
      { PRISM2_IOCTL_WDS_ADD,
        IW_PRIV_TYPE_ADDR | IW_PRIV_SIZE_FIXED | 1, 0, "wds_add" },
      { PRISM2_IOCTL_WDS_DEL,
        IW_PRIV_TYPE_ADDR | IW_PRIV_SIZE_FIXED | 1, 0, "wds_del" },
      { PRISM2_IOCTL_ADDMAC,
        IW_PRIV_TYPE_ADDR | IW_PRIV_SIZE_FIXED | 1, 0, "addmac" },
      { PRISM2_IOCTL_DELMAC,
        IW_PRIV_TYPE_ADDR | IW_PRIV_SIZE_FIXED | 1, 0, "delmac" },
      { PRISM2_IOCTL_KICKMAC,
        IW_PRIV_TYPE_ADDR | IW_PRIV_SIZE_FIXED | 1, 0, "kickmac" },
      /* --- raw access to sub-ioctls --- */
      { PRISM2_IOCTL_PRISM2_PARAM,
        IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 2, 0, "prism2_param" },
      { PRISM2_IOCTL_GET_PRISM2_PARAM,
        IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
        IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getprism2_param" },
      /* --- sub-ioctls handlers --- */
      { PRISM2_IOCTL_PRISM2_PARAM,
        IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "" },
      { PRISM2_IOCTL_GET_PRISM2_PARAM,
        0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "" },
      /* --- sub-ioctls definitions --- */
      { PRISM2_PARAM_TXRATECTRL,
        IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "txratectrl" },
      { PRISM2_PARAM_TXRATECTRL,
        0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "gettxratectrl" },
      { PRISM2_PARAM_BEACON_INT,
        IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "beacon_int" },
      { PRISM2_PARAM_BEACON_INT,
        0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getbeacon_int" },
#ifndef PRISM2_NO_STATION_MODES
      { PRISM2_PARAM_PSEUDO_IBSS,
        IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "pseudo_ibss" },
      { PRISM2_PARAM_PSEUDO_IBSS,
        0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getpseudo_ibss" },
#endif /* PRISM2_NO_STATION_MODES */
      { PRISM2_PARAM_ALC,
        IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "alc" },
      { PRISM2_PARAM_ALC,
        0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getalc" },
      { PRISM2_PARAM_DUMP,
        IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "dump" },
      { PRISM2_PARAM_DUMP,
        0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getdump" },
      { PRISM2_PARAM_OTHER_AP_POLICY,
        IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "other_ap_policy" },
      { PRISM2_PARAM_OTHER_AP_POLICY,
        0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getother_ap_pol" },
      { PRISM2_PARAM_AP_MAX_INACTIVITY,
        IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "max_inactivity" },
      { PRISM2_PARAM_AP_MAX_INACTIVITY,
        0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getmax_inactivi" },
      { PRISM2_PARAM_AP_BRIDGE_PACKETS,
        IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "bridge_packets" },
      { PRISM2_PARAM_AP_BRIDGE_PACKETS,
        0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getbridge_packe" },
      { PRISM2_PARAM_DTIM_PERIOD,
        IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "dtim_period" },
      { PRISM2_PARAM_DTIM_PERIOD,
        0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getdtim_period" },
      { PRISM2_PARAM_AP_NULLFUNC_ACK,
        IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "nullfunc_ack" },
      { PRISM2_PARAM_AP_NULLFUNC_ACK,
        0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getnullfunc_ack" },
      { PRISM2_PARAM_MAX_WDS,
        IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "max_wds" },
      { PRISM2_PARAM_MAX_WDS,
        0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getmax_wds" },
      { PRISM2_PARAM_AP_AUTOM_AP_WDS,
        IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "autom_ap_wds" },
      { PRISM2_PARAM_AP_AUTOM_AP_WDS,
        0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getautom_ap_wds" },
      { PRISM2_PARAM_AP_AUTH_ALGS,
        IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "ap_auth_algs" },
      { PRISM2_PARAM_AP_AUTH_ALGS,
        0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getap_auth_algs" },
      { PRISM2_PARAM_MONITOR_ALLOW_FCSERR,
        IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "allow_fcserr" },
      { PRISM2_PARAM_MONITOR_ALLOW_FCSERR,
        0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getallow_fcserr" },
      { PRISM2_PARAM_HOST_ENCRYPT,
        IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "host_encrypt" },
      { PRISM2_PARAM_HOST_ENCRYPT,
        0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "gethost_encrypt" },
      { PRISM2_PARAM_HOST_DECRYPT,
        IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "host_decrypt" },
      { PRISM2_PARAM_HOST_DECRYPT,
        0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "gethost_decrypt" },
#ifndef PRISM2_NO_STATION_MODES
      { PRISM2_PARAM_HOST_ROAMING,
        IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "host_roaming" },
      { PRISM2_PARAM_HOST_ROAMING,
        0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "gethost_roaming" },
#endif /* PRISM2_NO_STATION_MODES */
      { PRISM2_PARAM_BCRX_STA_KEY,
        IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "bcrx_sta_key" },
      { PRISM2_PARAM_BCRX_STA_KEY,
        0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getbcrx_sta_key" },
      { PRISM2_PARAM_IEEE_802_1X,
        IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "ieee_802_1x" },
      { PRISM2_PARAM_IEEE_802_1X,
        0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getieee_802_1x" },
      { PRISM2_PARAM_ANTSEL_TX,
        IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "antsel_tx" },
      { PRISM2_PARAM_ANTSEL_TX,
        0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getantsel_tx" },
      { PRISM2_PARAM_ANTSEL_RX,
        IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "antsel_rx" },
      { PRISM2_PARAM_ANTSEL_RX,
        0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getantsel_rx" },
      { PRISM2_PARAM_MONITOR_TYPE,
        IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "monitor_type" },
      { PRISM2_PARAM_MONITOR_TYPE,
        0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getmonitor_type" },
      { PRISM2_PARAM_WDS_TYPE,
        IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "wds_type" },
      { PRISM2_PARAM_WDS_TYPE,
        0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getwds_type" },
      { PRISM2_PARAM_HOSTSCAN,
        IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "hostscan" },
      { PRISM2_PARAM_HOSTSCAN,
        0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "gethostscan" },
      { PRISM2_PARAM_AP_SCAN,
        IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "ap_scan" },
      { PRISM2_PARAM_AP_SCAN,
        0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getap_scan" },
      { PRISM2_PARAM_ENH_SEC,
        IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "enh_sec" },
      { PRISM2_PARAM_ENH_SEC,
        0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getenh_sec" },
#ifdef PRISM2_IO_DEBUG
      { PRISM2_PARAM_IO_DEBUG,
        IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "io_debug" },
      { PRISM2_PARAM_IO_DEBUG,
        0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getio_debug" },
#endif /* PRISM2_IO_DEBUG */
      { PRISM2_PARAM_BASIC_RATES,
        IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "basic_rates" },
      { PRISM2_PARAM_BASIC_RATES,
        0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getbasic_rates" },
      { PRISM2_PARAM_OPER_RATES,
        IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "oper_rates" },
      { PRISM2_PARAM_OPER_RATES,
        0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getoper_rates" },
      { PRISM2_PARAM_HOSTAPD,
        IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "hostapd" },
      { PRISM2_PARAM_HOSTAPD,
        0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "gethostapd" },
      { PRISM2_PARAM_HOSTAPD_STA,
        IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "hostapd_sta" },
      { PRISM2_PARAM_HOSTAPD_STA,
        0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "gethostapd_sta" },
      { PRISM2_PARAM_WPA,
        IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "wpa" },
      { PRISM2_PARAM_WPA,
        0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getwpa" },
      { PRISM2_PARAM_PRIVACY_INVOKED,
        IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "privacy_invoked" },
      { PRISM2_PARAM_PRIVACY_INVOKED,
        0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getprivacy_invo" },
      { PRISM2_PARAM_TKIP_COUNTERMEASURES,
        IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "tkip_countermea" },
      { PRISM2_PARAM_TKIP_COUNTERMEASURES,
        0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "gettkip_counter" },
      { PRISM2_PARAM_DROP_UNENCRYPTED,
        IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "drop_unencrypte" },
      { PRISM2_PARAM_DROP_UNENCRYPTED,
        0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getdrop_unencry" },
      { PRISM2_PARAM_SCAN_CHANNEL_MASK,
        IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "scan_channels" },
      { PRISM2_PARAM_SCAN_CHANNEL_MASK,
        0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getscan_channel" },
};


static int prism2_ioctl_priv_inquire(struct net_device *dev, int *i)
{
      struct hostap_interface *iface;
      local_info_t *local;

      iface = netdev_priv(dev);
      local = iface->local;

      if (local->func->cmd(dev, HFA384X_CMDCODE_INQUIRE, *i, NULL, NULL))
            return -EOPNOTSUPP;

      return 0;
}


static int prism2_ioctl_priv_prism2_param(struct net_device *dev,
                                struct iw_request_info *info,
                                void *wrqu, char *extra)
{
      struct hostap_interface *iface;
      local_info_t *local;
      int *i = (int *) extra;
      int param = *i;
      int value = *(i + 1);
      int ret = 0;
      u16 val;

      iface = netdev_priv(dev);
      local = iface->local;

      switch (param) {
      case PRISM2_PARAM_TXRATECTRL:
            local->fw_tx_rate_control = value;
            break;

      case PRISM2_PARAM_BEACON_INT:
            if (hostap_set_word(dev, HFA384X_RID_CNFBEACONINT, value) ||
                local->func->reset_port(dev))
                  ret = -EINVAL;
            else
                  local->beacon_int = value;
            break;

#ifndef PRISM2_NO_STATION_MODES
      case PRISM2_PARAM_PSEUDO_IBSS:
            if (value == local->pseudo_adhoc)
                  break;

            if (value != 0 && value != 1) {
                  ret = -EINVAL;
                  break;
            }

            printk(KERN_DEBUG "prism2: %s: pseudo IBSS change %d -> %d\n",
                   dev->name, local->pseudo_adhoc, value);
            local->pseudo_adhoc = value;
            if (local->iw_mode != IW_MODE_ADHOC)
                  break;

            if (hostap_set_word(dev, HFA384X_RID_CNFPORTTYPE,
                            hostap_get_porttype(local))) {
                  ret = -EOPNOTSUPP;
                  break;
            }

            if (local->func->reset_port(dev))
                  ret = -EINVAL;
            break;
#endif /* PRISM2_NO_STATION_MODES */

      case PRISM2_PARAM_ALC:
            printk(KERN_DEBUG "%s: %s ALC\n", dev->name,
                   value == 0 ? "Disabling" : "Enabling");
            val = HFA384X_TEST_CFG_BIT_ALC;
            local->func->cmd(dev, HFA384X_CMDCODE_TEST |
                         (HFA384X_TEST_CFG_BITS << 8),
                         value == 0 ? 0 : 1, &val, NULL);
            break;

      case PRISM2_PARAM_DUMP:
            local->frame_dump = value;
            break;

      case PRISM2_PARAM_OTHER_AP_POLICY:
            if (value < 0 || value > 3) {
                  ret = -EINVAL;
                  break;
            }
            if (local->ap != NULL)
                  local->ap->ap_policy = value;
            break;

      case PRISM2_PARAM_AP_MAX_INACTIVITY:
            if (value < 0 || value > 7 * 24 * 60 * 60) {
                  ret = -EINVAL;
                  break;
            }
            if (local->ap != NULL)
                  local->ap->max_inactivity = value * HZ;
            break;

      case PRISM2_PARAM_AP_BRIDGE_PACKETS:
            if (local->ap != NULL)
                  local->ap->bridge_packets = value;
            break;

      case PRISM2_PARAM_DTIM_PERIOD:
            if (value < 0 || value > 65535) {
                  ret = -EINVAL;
                  break;
            }
            if (hostap_set_word(dev, HFA384X_RID_CNFOWNDTIMPERIOD, value)
                || local->func->reset_port(dev))
                  ret = -EINVAL;
            else
                  local->dtim_period = value;
            break;

      case PRISM2_PARAM_AP_NULLFUNC_ACK:
            if (local->ap != NULL)
                  local->ap->nullfunc_ack = value;
            break;

      case PRISM2_PARAM_MAX_WDS:
            local->wds_max_connections = value;
            break;

      case PRISM2_PARAM_AP_AUTOM_AP_WDS:
            if (local->ap != NULL) {
                  if (!local->ap->autom_ap_wds && value) {
                        /* add WDS link to all APs in STA table */
                        hostap_add_wds_links(local);
                  }
                  local->ap->autom_ap_wds = value;
            }
            break;

      case PRISM2_PARAM_AP_AUTH_ALGS:
            local->auth_algs = value;
            if (hostap_set_auth_algs(local))
                  ret = -EINVAL;
            break;

      case PRISM2_PARAM_MONITOR_ALLOW_FCSERR:
            local->monitor_allow_fcserr = value;
            break;

      case PRISM2_PARAM_HOST_ENCRYPT:
            local->host_encrypt = value;
            if (hostap_set_encryption(local) ||
                local->func->reset_port(dev))
                  ret = -EINVAL;
            break;

      case PRISM2_PARAM_HOST_DECRYPT:
            local->host_decrypt = value;
            if (hostap_set_encryption(local) ||
                local->func->reset_port(dev))
                  ret = -EINVAL;
            break;

#ifndef PRISM2_NO_STATION_MODES
      case PRISM2_PARAM_HOST_ROAMING:
            if (value < 0 || value > 2) {
                  ret = -EINVAL;
                  break;
            }
            local->host_roaming = value;
            if (hostap_set_roaming(local) || local->func->reset_port(dev))
                  ret = -EINVAL;
            break;
#endif /* PRISM2_NO_STATION_MODES */

      case PRISM2_PARAM_BCRX_STA_KEY:
            local->bcrx_sta_key = value;
            break;

      case PRISM2_PARAM_IEEE_802_1X:
            local->ieee_802_1x = value;
            break;

      case PRISM2_PARAM_ANTSEL_TX:
            if (value < 0 || value > HOSTAP_ANTSEL_HIGH) {
                  ret = -EINVAL;
                  break;
            }
            local->antsel_tx = value;
            hostap_set_antsel(local);
            break;

      case PRISM2_PARAM_ANTSEL_RX:
            if (value < 0 || value > HOSTAP_ANTSEL_HIGH) {
                  ret = -EINVAL;
                  break;
            }
            local->antsel_rx = value;
            hostap_set_antsel(local);
            break;

      case PRISM2_PARAM_MONITOR_TYPE:
            if (value != PRISM2_MONITOR_80211 &&
                value != PRISM2_MONITOR_CAPHDR &&
                value != PRISM2_MONITOR_PRISM) {
                  ret = -EINVAL;
                  break;
            }
            local->monitor_type = value;
            if (local->iw_mode == IW_MODE_MONITOR)
                  hostap_monitor_set_type(local);
            break;

      case PRISM2_PARAM_WDS_TYPE:
            local->wds_type = value;
            break;

      case PRISM2_PARAM_HOSTSCAN:
      {
            struct hfa384x_hostscan_request scan_req;
            u16 rate;

            memset(&scan_req, 0, sizeof(scan_req));
            scan_req.channel_list = __constant_cpu_to_le16(0x3fff);
            switch (value) {
            case 1: rate = HFA384X_RATES_1MBPS; break;
            case 2: rate = HFA384X_RATES_2MBPS; break;
            case 3: rate = HFA384X_RATES_5MBPS; break;
            case 4: rate = HFA384X_RATES_11MBPS; break;
            default: rate = HFA384X_RATES_1MBPS; break;
            }
            scan_req.txrate = cpu_to_le16(rate);
            /* leave SSID empty to accept all SSIDs */

            if (local->iw_mode == IW_MODE_MASTER) {
                  if (hostap_set_word(dev, HFA384X_RID_CNFPORTTYPE,
                                  HFA384X_PORTTYPE_BSS) ||
                      local->func->reset_port(dev))
                        printk(KERN_DEBUG "Leaving Host AP mode "
                               "for HostScan failed\n");
            }

            if (local->func->set_rid(dev, HFA384X_RID_HOSTSCAN, &scan_req,
                               sizeof(scan_req))) {
                  printk(KERN_DEBUG "HOSTSCAN failed\n");
                  ret = -EINVAL;
            }
            if (local->iw_mode == IW_MODE_MASTER) {
                  wait_queue_t __wait;
                  init_waitqueue_entry(&__wait, current);
                  add_wait_queue(&local->hostscan_wq, &__wait);
                  set_current_state(TASK_INTERRUPTIBLE);
                  schedule_timeout(HZ);
                  if (signal_pending(current))
                        ret = -EINTR;
                  set_current_state(TASK_RUNNING);
                  remove_wait_queue(&local->hostscan_wq, &__wait);

                  if (hostap_set_word(dev, HFA384X_RID_CNFPORTTYPE,
                                  HFA384X_PORTTYPE_HOSTAP) ||
                      local->func->reset_port(dev))
                        printk(KERN_DEBUG "Returning to Host AP mode "
                               "after HostScan failed\n");
            }
            break;
      }

      case PRISM2_PARAM_AP_SCAN:
            local->passive_scan_interval = value;
            if (timer_pending(&local->passive_scan_timer))
                  del_timer(&local->passive_scan_timer);
            if (value > 0) {
                  local->passive_scan_timer.expires = jiffies +
                        local->passive_scan_interval * HZ;
                  add_timer(&local->passive_scan_timer);
            }
            break;

      case PRISM2_PARAM_ENH_SEC:
            if (value < 0 || value > 3) {
                  ret = -EINVAL;
                  break;
            }
            local->enh_sec = value;
            if (hostap_set_word(dev, HFA384X_RID_CNFENHSECURITY,
                            local->enh_sec) ||
                local->func->reset_port(dev)) {
                  printk(KERN_INFO "%s: cnfEnhSecurity requires STA f/w "
                         "1.6.3 or newer\n", dev->name);
                  ret = -EOPNOTSUPP;
            }
            break;

#ifdef PRISM2_IO_DEBUG
      case PRISM2_PARAM_IO_DEBUG:
            local->io_debug_enabled = value;
            break;
#endif /* PRISM2_IO_DEBUG */

      case PRISM2_PARAM_BASIC_RATES:
            if ((value & local->tx_rate_control) != value || value == 0) {
                  printk(KERN_INFO "%s: invalid basic rate set - basic "
                         "rates must be in supported rate set\n",
                         dev->name);
                  ret = -EINVAL;
                  break;
            }
            local->basic_rates = value;
            if (hostap_set_word(dev, HFA384X_RID_CNFBASICRATES,
                            local->basic_rates) ||
                local->func->reset_port(dev))
                  ret = -EINVAL;
            break;

      case PRISM2_PARAM_OPER_RATES:
            local->tx_rate_control = value;
            if (hostap_set_rate(dev))
                  ret = -EINVAL;
            break;

      case PRISM2_PARAM_HOSTAPD:
            ret = hostap_set_hostapd(local, value, 1);
            break;

      case PRISM2_PARAM_HOSTAPD_STA:
            ret = hostap_set_hostapd_sta(local, value, 1);
            break;

      case PRISM2_PARAM_WPA:
            local->wpa = value;
            if (local->sta_fw_ver < PRISM2_FW_VER(1,7,0))
                  ret = -EOPNOTSUPP;
            else if (hostap_set_word(dev, HFA384X_RID_SSNHANDLINGMODE,
                               value ? 1 : 0))
                  ret = -EINVAL;
            break;

      case PRISM2_PARAM_PRIVACY_INVOKED:
            local->privacy_invoked = value;
            if (hostap_set_encryption(local) ||
                local->func->reset_port(dev))
                  ret = -EINVAL;
            break;

      case PRISM2_PARAM_TKIP_COUNTERMEASURES:
            local->tkip_countermeasures = value;
            break;

      case PRISM2_PARAM_DROP_UNENCRYPTED:
            local->drop_unencrypted = value;
            break;

      case PRISM2_PARAM_SCAN_CHANNEL_MASK:
            local->scan_channel_mask = value;
            break;

      default:
            printk(KERN_DEBUG "%s: prism2_param: unknown param %d\n",
                   dev->name, param);
            ret = -EOPNOTSUPP;
            break;
      }

      return ret;
}


static int prism2_ioctl_priv_get_prism2_param(struct net_device *dev,
                                    struct iw_request_info *info,
                                    void *wrqu, char *extra)
{
      struct hostap_interface *iface;
      local_info_t *local;
      int *param = (int *) extra;
      int ret = 0;

      iface = netdev_priv(dev);
      local = iface->local;

      switch (*param) {
      case PRISM2_PARAM_TXRATECTRL:
            *param = local->fw_tx_rate_control;
            break;

      case PRISM2_PARAM_BEACON_INT:
            *param = local->beacon_int;
            break;

      case PRISM2_PARAM_PSEUDO_IBSS:
            *param = local->pseudo_adhoc;
            break;

      case PRISM2_PARAM_ALC:
            ret = -EOPNOTSUPP; /* FIX */
            break;

      case PRISM2_PARAM_DUMP:
            *param = local->frame_dump;
            break;

      case PRISM2_PARAM_OTHER_AP_POLICY:
            if (local->ap != NULL)
                  *param = local->ap->ap_policy;
            else
                  ret = -EOPNOTSUPP;
            break;

      case PRISM2_PARAM_AP_MAX_INACTIVITY:
            if (local->ap != NULL)
                  *param = local->ap->max_inactivity / HZ;
            else
                  ret = -EOPNOTSUPP;
            break;

      case PRISM2_PARAM_AP_BRIDGE_PACKETS:
            if (local->ap != NULL)
                  *param = local->ap->bridge_packets;
            else
                  ret = -EOPNOTSUPP;
            break;

      case PRISM2_PARAM_DTIM_PERIOD:
            *param = local->dtim_period;
            break;

      case PRISM2_PARAM_AP_NULLFUNC_ACK:
            if (local->ap != NULL)
                  *param = local->ap->nullfunc_ack;
            else
                  ret = -EOPNOTSUPP;
            break;

      case PRISM2_PARAM_MAX_WDS:
            *param = local->wds_max_connections;
            break;

      case PRISM2_PARAM_AP_AUTOM_AP_WDS:
            if (local->ap != NULL)
                  *param = local->ap->autom_ap_wds;
            else
                  ret = -EOPNOTSUPP;
            break;

      case PRISM2_PARAM_AP_AUTH_ALGS:
            *param = local->auth_algs;
            break;

      case PRISM2_PARAM_MONITOR_ALLOW_FCSERR:
            *param = local->monitor_allow_fcserr;
            break;

      case PRISM2_PARAM_HOST_ENCRYPT:
            *param = local->host_encrypt;
            break;

      case PRISM2_PARAM_HOST_DECRYPT:
            *param = local->host_decrypt;
            break;

      case PRISM2_PARAM_HOST_ROAMING:
            *param = local->host_roaming;
            break;

      case PRISM2_PARAM_BCRX_STA_KEY:
            *param = local->bcrx_sta_key;
            break;

      case PRISM2_PARAM_IEEE_802_1X:
            *param = local->ieee_802_1x;
            break;

      case PRISM2_PARAM_ANTSEL_TX:
            *param = local->antsel_tx;
            break;

      case PRISM2_PARAM_ANTSEL_RX:
            *param = local->antsel_rx;
            break;

      case PRISM2_PARAM_MONITOR_TYPE:
            *param = local->monitor_type;
            break;

      case PRISM2_PARAM_WDS_TYPE:
            *param = local->wds_type;
            break;

      case PRISM2_PARAM_HOSTSCAN:
            ret = -EOPNOTSUPP;
            break;

      case PRISM2_PARAM_AP_SCAN:
            *param = local->passive_scan_interval;
            break;

      case PRISM2_PARAM_ENH_SEC:
            *param = local->enh_sec;
            break;

#ifdef PRISM2_IO_DEBUG
      case PRISM2_PARAM_IO_DEBUG:
            *param = local->io_debug_enabled;
            break;
#endif /* PRISM2_IO_DEBUG */

      case PRISM2_PARAM_BASIC_RATES:
            *param = local->basic_rates;
            break;

      case PRISM2_PARAM_OPER_RATES:
            *param = local->tx_rate_control;
            break;

      case PRISM2_PARAM_HOSTAPD:
            *param = local->hostapd;
            break;

      case PRISM2_PARAM_HOSTAPD_STA:
            *param = local->hostapd_sta;
            break;

      case PRISM2_PARAM_WPA:
            if (local->sta_fw_ver < PRISM2_FW_VER(1,7,0))
                  ret = -EOPNOTSUPP;
            *param = local->wpa;
            break;

      case PRISM2_PARAM_PRIVACY_INVOKED:
            *param = local->privacy_invoked;
            break;

      case PRISM2_PARAM_TKIP_COUNTERMEASURES:
            *param = local->tkip_countermeasures;
            break;

      case PRISM2_PARAM_DROP_UNENCRYPTED:
            *param = local->drop_unencrypted;
            break;

      case PRISM2_PARAM_SCAN_CHANNEL_MASK:
            *param = local->scan_channel_mask;
            break;

      default:
            printk(KERN_DEBUG "%s: get_prism2_param: unknown param %d\n",
                   dev->name, *param);
            ret = -EOPNOTSUPP;
            break;
      }

      return ret;
}


static int prism2_ioctl_priv_readmif(struct net_device *dev,
                             struct iw_request_info *info,
                             void *wrqu, char *extra)
{
      struct hostap_interface *iface;
      local_info_t *local;
      u16 resp0;

      iface = netdev_priv(dev);
      local = iface->local;

      if (local->func->cmd(dev, HFA384X_CMDCODE_READMIF, *extra, NULL,
                       &resp0))
            return -EOPNOTSUPP;
      else
            *extra = resp0;

      return 0;
}


static int prism2_ioctl_priv_writemif(struct net_device *dev,
                              struct iw_request_info *info,
                              void *wrqu, char *extra)
{
      struct hostap_interface *iface;
      local_info_t *local;
      u16 cr, val;

      iface = netdev_priv(dev);
      local = iface->local;

      cr = *extra;
      val = *(extra + 1);
      if (local->func->cmd(dev, HFA384X_CMDCODE_WRITEMIF, cr, &val, NULL))
            return -EOPNOTSUPP;

      return 0;
}


static int prism2_ioctl_priv_monitor(struct net_device *dev, int *i)
{
      struct hostap_interface *iface;
      local_info_t *local;
      int ret = 0;
      u32 mode;

      iface = netdev_priv(dev);
      local = iface->local;

      printk(KERN_DEBUG "%s: process %d (%s) used deprecated iwpriv monitor "
             "- update software to use iwconfig mode monitor\n",
             dev->name, task_pid_nr(current), current->comm);

      /* Backward compatibility code - this can be removed at some point */

      if (*i == 0) {
            /* Disable monitor mode - old mode was not saved, so go to
             * Master mode */
            mode = IW_MODE_MASTER;
            ret = prism2_ioctl_siwmode(dev, NULL, &mode, NULL);
      } else if (*i == 1) {
            /* netlink socket mode is not supported anymore since it did
             * not separate different devices from each other and was not
             * best method for delivering large amount of packets to
             * user space */
            ret = -EOPNOTSUPP;
      } else if (*i == 2 || *i == 3) {
            switch (*i) {
            case 2:
                  local->monitor_type = PRISM2_MONITOR_80211;
                  break;
            case 3:
                  local->monitor_type = PRISM2_MONITOR_PRISM;
                  break;
            }
            mode = IW_MODE_MONITOR;
            ret = prism2_ioctl_siwmode(dev, NULL, &mode, NULL);
            hostap_monitor_mode_enable(local);
      } else
            ret = -EINVAL;

      return ret;
}


static int prism2_ioctl_priv_reset(struct net_device *dev, int *i)
{
      struct hostap_interface *iface;
      local_info_t *local;

      iface = netdev_priv(dev);
      local = iface->local;

      printk(KERN_DEBUG "%s: manual reset request(%d)\n", dev->name, *i);
      switch (*i) {
      case 0:
            /* Disable and enable card */
            local->func->hw_shutdown(dev, 1);
            local->func->hw_config(dev, 0);
            break;

      case 1:
            /* COR sreset */
            local->func->hw_reset(dev);
            break;

      case 2:
            /* Disable and enable port 0 */
            local->func->reset_port(dev);
            break;

      case 3:
            prism2_sta_deauth(local, WLAN_REASON_DEAUTH_LEAVING);
            if (local->func->cmd(dev, HFA384X_CMDCODE_DISABLE, 0, NULL,
                             NULL))
                  return -EINVAL;
            break;

      case 4:
            if (local->func->cmd(dev, HFA384X_CMDCODE_ENABLE, 0, NULL,
                             NULL))
                  return -EINVAL;
            break;

      default:
            printk(KERN_DEBUG "Unknown reset request %d\n", *i);
            return -EOPNOTSUPP;
      }

      return 0;
}


static int prism2_ioctl_priv_set_rid_word(struct net_device *dev, int *i)
{
      int rid = *i;
      int value = *(i + 1);

      printk(KERN_DEBUG "%s: Set RID[0x%X] = %d\n", dev->name, rid, value);

      if (hostap_set_word(dev, rid, value))
            return -EINVAL;

      return 0;
}


#ifndef PRISM2_NO_KERNEL_IEEE80211_MGMT
static int ap_mac_cmd_ioctl(local_info_t *local, int *cmd)
{
      int ret = 0;

      switch (*cmd) {
      case AP_MAC_CMD_POLICY_OPEN:
            local->ap->mac_restrictions.policy = MAC_POLICY_OPEN;
            break;
      case AP_MAC_CMD_POLICY_ALLOW:
            local->ap->mac_restrictions.policy = MAC_POLICY_ALLOW;
            break;
      case AP_MAC_CMD_POLICY_DENY:
            local->ap->mac_restrictions.policy = MAC_POLICY_DENY;
            break;
      case AP_MAC_CMD_FLUSH:
            ap_control_flush_macs(&local->ap->mac_restrictions);
            break;
      case AP_MAC_CMD_KICKALL:
            ap_control_kickall(local->ap);
            hostap_deauth_all_stas(local->dev, local->ap, 0);
            break;
      default:
            ret = -EOPNOTSUPP;
            break;
      }

      return ret;
}
#endif /* PRISM2_NO_KERNEL_IEEE80211_MGMT */


#ifdef PRISM2_DOWNLOAD_SUPPORT
static int prism2_ioctl_priv_download(local_info_t *local, struct iw_point *p)
{
      struct prism2_download_param *param;
      int ret = 0;

      if (p->length < sizeof(struct prism2_download_param) ||
          p->length > 1024 || !p->pointer)
            return -EINVAL;

      param = (struct prism2_download_param *)
            kmalloc(p->length, GFP_KERNEL);
      if (param == NULL)
            return -ENOMEM;

      if (copy_from_user(param, p->pointer, p->length)) {
            ret = -EFAULT;
            goto out;
      }

      if (p->length < sizeof(struct prism2_download_param) +
          param->num_areas * sizeof(struct prism2_download_area)) {
            ret = -EINVAL;
            goto out;
      }

      ret = local->func->download(local, param);

 out:
      kfree(param);
      return ret;
}
#endif /* PRISM2_DOWNLOAD_SUPPORT */


static int prism2_set_genericelement(struct net_device *dev, u8 *elem,
                             size_t len)
{
      struct hostap_interface *iface = netdev_priv(dev);
      local_info_t *local = iface->local;
      u8 *buf;

      /*
       * Add 16-bit length in the beginning of the buffer because Prism2 RID
       * includes it.
       */
      buf = kmalloc(len + 2, GFP_KERNEL);
      if (buf == NULL)
            return -ENOMEM;

      *((u16 *) buf) = cpu_to_le16(len);
      memcpy(buf + 2, elem, len);

      kfree(local->generic_elem);
      local->generic_elem = buf;
      local->generic_elem_len = len + 2;

      return local->func->set_rid(local->dev, HFA384X_RID_GENERICELEMENT,
                            buf, len + 2);
}


static int prism2_ioctl_siwauth(struct net_device *dev,
                        struct iw_request_info *info,
                        struct iw_param *data, char *extra)
{
      struct hostap_interface *iface = netdev_priv(dev);
      local_info_t *local = iface->local;

      switch (data->flags & IW_AUTH_INDEX) {
      case IW_AUTH_WPA_VERSION:
      case IW_AUTH_CIPHER_PAIRWISE:
      case IW_AUTH_CIPHER_GROUP:
      case IW_AUTH_KEY_MGMT:
            /*
             * Host AP driver does not use these parameters and allows
             * wpa_supplicant to control them internally.
             */
            break;
      case IW_AUTH_TKIP_COUNTERMEASURES:
            local->tkip_countermeasures = data->value;
            break;
      case IW_AUTH_DROP_UNENCRYPTED:
            local->drop_unencrypted = data->value;
            break;
      case IW_AUTH_80211_AUTH_ALG:
            local->auth_algs = data->value;
            break;
      case IW_AUTH_WPA_ENABLED:
            if (data->value == 0) {
                  local->wpa = 0;
                  if (local->sta_fw_ver < PRISM2_FW_VER(1,7,0))
                        break;
                  prism2_set_genericelement(dev, "", 0);
                  local->host_roaming = 0;
                  local->privacy_invoked = 0;
                  if (hostap_set_word(dev, HFA384X_RID_SSNHANDLINGMODE,
                                  0) ||
                      hostap_set_roaming(local) ||
                      hostap_set_encryption(local) ||
                      local->func->reset_port(dev))
                        return -EINVAL;
                  break;
            }
            if (local->sta_fw_ver < PRISM2_FW_VER(1,7,0))
                  return -EOPNOTSUPP;
            local->host_roaming = 2;
            local->privacy_invoked = 1;
            local->wpa = 1;
            if (hostap_set_word(dev, HFA384X_RID_SSNHANDLINGMODE, 1) ||
                hostap_set_roaming(local) ||
                hostap_set_encryption(local) ||
                local->func->reset_port(dev))
                  return -EINVAL;
            break;
      case IW_AUTH_RX_UNENCRYPTED_EAPOL:
            local->ieee_802_1x = data->value;
            break;
      case IW_AUTH_PRIVACY_INVOKED:
            local->privacy_invoked = data->value;
            break;
      default:
            return -EOPNOTSUPP;
      }
      return 0;
}


static int prism2_ioctl_giwauth(struct net_device *dev,
                        struct iw_request_info *info,
                        struct iw_param *data, char *extra)
{
      struct hostap_interface *iface = netdev_priv(dev);
      local_info_t *local = iface->local;

      switch (data->flags & IW_AUTH_INDEX) {
      case IW_AUTH_WPA_VERSION:
      case IW_AUTH_CIPHER_PAIRWISE:
      case IW_AUTH_CIPHER_GROUP:
      case IW_AUTH_KEY_MGMT:
            /*
             * Host AP driver does not use these parameters and allows
             * wpa_supplicant to control them internally.
             */
            return -EOPNOTSUPP;
      case IW_AUTH_TKIP_COUNTERMEASURES:
            data->value = local->tkip_countermeasures;
            break;
      case IW_AUTH_DROP_UNENCRYPTED:
            data->value = local->drop_unencrypted;
            break;
      case IW_AUTH_80211_AUTH_ALG:
            data->value = local->auth_algs;
            break;
      case IW_AUTH_WPA_ENABLED:
            data->value = local->wpa;
            break;
      case IW_AUTH_RX_UNENCRYPTED_EAPOL:
            data->value = local->ieee_802_1x;
            break;
      default:
            return -EOPNOTSUPP;
      }
      return 0;
}


static int prism2_ioctl_siwencodeext(struct net_device *dev,
                             struct iw_request_info *info,
                             struct iw_point *erq, char *extra)
{
      struct hostap_interface *iface = netdev_priv(dev);
      local_info_t *local = iface->local;
      struct iw_encode_ext *ext = (struct iw_encode_ext *) extra;
      int i, ret = 0;
      struct ieee80211_crypto_ops *ops;
      struct ieee80211_crypt_data **crypt;
      void *sta_ptr;
      u8 *addr;
      const char *alg, *module;

      i = erq->flags & IW_ENCODE_INDEX;
      if (i > WEP_KEYS)
            return -EINVAL;
      if (i < 1 || i > WEP_KEYS)
            i = local->tx_keyidx;
      else
            i--;
      if (i < 0 || i >= WEP_KEYS)
            return -EINVAL;

      addr = ext->addr.sa_data;
      if (addr[0] == 0xff && addr[1] == 0xff && addr[2] == 0xff &&
          addr[3] == 0xff && addr[4] == 0xff && addr[5] == 0xff) {
            sta_ptr = NULL;
            crypt = &local->crypt[i];
      } else {
            if (i != 0)
                  return -EINVAL;
            sta_ptr = ap_crypt_get_ptrs(local->ap, addr, 0, &crypt);
            if (sta_ptr == NULL) {
                  if (local->iw_mode == IW_MODE_INFRA) {
                        /*
                         * TODO: add STA entry for the current AP so
                         * that unicast key can be used. For now, this
                         * is emulated by using default key idx 0.
                         */
                        i = 0;
                        crypt = &local->crypt[i];
                  } else
                        return -EINVAL;
            }
      }

      if ((erq->flags & IW_ENCODE_DISABLED) ||
          ext->alg == IW_ENCODE_ALG_NONE) {
            if (*crypt)
                  prism2_crypt_delayed_deinit(local, crypt);
            goto done;
      }

      switch (ext->alg) {
      case IW_ENCODE_ALG_WEP:
            alg = "WEP";
            module = "ieee80211_crypt_wep";
            break;
      case IW_ENCODE_ALG_TKIP:
            alg = "TKIP";
            module = "ieee80211_crypt_tkip";
            break;
      case IW_ENCODE_ALG_CCMP:
            alg = "CCMP";
            module = "ieee80211_crypt_ccmp";
            break;
      default:
            printk(KERN_DEBUG "%s: unsupported algorithm %d\n",
                   local->dev->name, ext->alg);
            ret = -EOPNOTSUPP;
            goto done;
      }

      ops = ieee80211_get_crypto_ops(alg);
      if (ops == NULL) {
            request_module(module);
            ops = ieee80211_get_crypto_ops(alg);
      }
      if (ops == NULL) {
            printk(KERN_DEBUG "%s: unknown crypto alg '%s'\n",
                   local->dev->name, alg);
            ret = -EOPNOTSUPP;
            goto done;
      }

      if (sta_ptr || ext->alg != IW_ENCODE_ALG_WEP) {
            /*
             * Per station encryption and other than WEP algorithms
             * require host-based encryption, so force them on
             * automatically.
             */
            local->host_decrypt = local->host_encrypt = 1;
      }

      if (*crypt == NULL || (*crypt)->ops != ops) {
            struct ieee80211_crypt_data *new_crypt;

            prism2_crypt_delayed_deinit(local, crypt);

            new_crypt = kzalloc(sizeof(struct ieee80211_crypt_data),
                        GFP_KERNEL);
            if (new_crypt == NULL) {
                  ret = -ENOMEM;
                  goto done;
            }
            new_crypt->ops = ops;
            new_crypt->priv = new_crypt->ops->init(i);
            if (new_crypt->priv == NULL) {
                  kfree(new_crypt);
                  ret = -EINVAL;
                  goto done;
            }

            *crypt = new_crypt;
      }

      /*
       * TODO: if ext_flags does not have IW_ENCODE_EXT_RX_SEQ_VALID, the
       * existing seq# should not be changed.
       * TODO: if ext_flags has IW_ENCODE_EXT_TX_SEQ_VALID, next TX seq#
       * should be changed to something else than zero.
       */
      if ((!(ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY) || ext->key_len > 0)
          && (*crypt)->ops->set_key &&
          (*crypt)->ops->set_key(ext->key, ext->key_len, ext->rx_seq,
                           (*crypt)->priv) < 0) {
            printk(KERN_DEBUG "%s: key setting failed\n",
                   local->dev->name);
            ret = -EINVAL;
            goto done;
      }

      if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY) {
            if (!sta_ptr)
                  local->tx_keyidx = i;
      }


      if (sta_ptr == NULL && ext->key_len > 0) {
            int first = 1, j;
            for (j = 0; j < WEP_KEYS; j++) {
                  if (j != i && local->crypt[j]) {
                        first = 0;
                        break;
                  }
            }
            if (first)
                  local->tx_keyidx = i;
      }

 done:
      if (sta_ptr)
            hostap_handle_sta_release(sta_ptr);

      local->open_wep = erq->flags & IW_ENCODE_OPEN;

      /*
       * Do not reset port0 if card is in Managed mode since resetting will
       * generate new IEEE 802.11 authentication which may end up in looping
       * with IEEE 802.1X. Prism2 documentation seem to require port reset
       * after WEP configuration. However, keys are apparently changed at
       * least in Managed mode.
       */
      if (ret == 0 &&
          (hostap_set_encryption(local) ||
           (local->iw_mode != IW_MODE_INFRA &&
            local->func->reset_port(local->dev))))
            ret = -EINVAL;

      return ret;
}


static int prism2_ioctl_giwencodeext(struct net_device *dev,
                             struct iw_request_info *info,
                             struct iw_point *erq, char *extra)
{
      struct hostap_interface *iface = netdev_priv(dev);
      local_info_t *local = iface->local;
      struct ieee80211_crypt_data **crypt;
      void *sta_ptr;
      int max_key_len, i;
      struct iw_encode_ext *ext = (struct iw_encode_ext *) extra;
      u8 *addr;

      max_key_len = erq->length - sizeof(*ext);
      if (max_key_len < 0)
            return -EINVAL;

      i = erq->flags & IW_ENCODE_INDEX;
      if (i < 1 || i > WEP_KEYS)
            i = local->tx_keyidx;
      else
            i--;

      addr = ext->addr.sa_data;
      if (addr[0] == 0xff && addr[1] == 0xff && addr[2] == 0xff &&
          addr[3] == 0xff && addr[4] == 0xff && addr[5] == 0xff) {
            sta_ptr = NULL;
            crypt = &local->crypt[i];
      } else {
            i = 0;
            sta_ptr = ap_crypt_get_ptrs(local->ap, addr, 0, &crypt);
            if (sta_ptr == NULL)
                  return -EINVAL;
      }
      erq->flags = i + 1;
      memset(ext, 0, sizeof(*ext));

      if (*crypt == NULL || (*crypt)->ops == NULL) {
            ext->alg = IW_ENCODE_ALG_NONE;
            ext->key_len = 0;
            erq->flags |= IW_ENCODE_DISABLED;
      } else {
            if (strcmp((*crypt)->ops->name, "WEP") == 0)
                  ext->alg = IW_ENCODE_ALG_WEP;
            else if (strcmp((*crypt)->ops->name, "TKIP") == 0)
                  ext->alg = IW_ENCODE_ALG_TKIP;
            else if (strcmp((*crypt)->ops->name, "CCMP") == 0)
                  ext->alg = IW_ENCODE_ALG_CCMP;
            else
                  return -EINVAL;

            if ((*crypt)->ops->get_key) {
                  ext->key_len =
                        (*crypt)->ops->get_key(ext->key,
                                           max_key_len,
                                           ext->tx_seq,
                                           (*crypt)->priv);
                  if (ext->key_len &&
                      (ext->alg == IW_ENCODE_ALG_TKIP ||
                       ext->alg == IW_ENCODE_ALG_CCMP))
                        ext->ext_flags |= IW_ENCODE_EXT_TX_SEQ_VALID;
            }
      }

      if (sta_ptr)
            hostap_handle_sta_release(sta_ptr);

      return 0;
}


static int prism2_ioctl_set_encryption(local_info_t *local,
                               struct prism2_hostapd_param *param,
                               int param_len)
{
      int ret = 0;
      struct ieee80211_crypto_ops *ops;
      struct ieee80211_crypt_data **crypt;
      void *sta_ptr;

      param->u.crypt.err = 0;
      param->u.crypt.alg[HOSTAP_CRYPT_ALG_NAME_LEN - 1] = '\0';

      if (param_len !=
          (int) ((char *) param->u.crypt.key - (char *) param) +
          param->u.crypt.key_len)
            return -EINVAL;

      if (param->sta_addr[0] == 0xff && param->sta_addr[1] == 0xff &&
          param->sta_addr[2] == 0xff && param->sta_addr[3] == 0xff &&
          param->sta_addr[4] == 0xff && param->sta_addr[5] == 0xff) {
            if (param->u.crypt.idx >= WEP_KEYS)
                  return -EINVAL;
            sta_ptr = NULL;
            crypt = &local->crypt[param->u.crypt.idx];
      } else {
            if (param->u.crypt.idx)
                  return -EINVAL;
            sta_ptr = ap_crypt_get_ptrs(
                  local->ap, param->sta_addr,
                  (param->u.crypt.flags & HOSTAP_CRYPT_FLAG_PERMANENT),
                  &crypt);

            if (sta_ptr == NULL) {
                  param->u.crypt.err = HOSTAP_CRYPT_ERR_UNKNOWN_ADDR;
                  return -EINVAL;
            }
      }

      if (strcmp(param->u.crypt.alg, "none") == 0) {
            if (crypt)
                  prism2_crypt_delayed_deinit(local, crypt);
            goto done;
      }

      ops = ieee80211_get_crypto_ops(param->u.crypt.alg);
      if (ops == NULL && strcmp(param->u.crypt.alg, "WEP") == 0) {
            request_module("ieee80211_crypt_wep");
            ops = ieee80211_get_crypto_ops(param->u.crypt.alg);
      } else if (ops == NULL && strcmp(param->u.crypt.alg, "TKIP") == 0) {
            request_module("ieee80211_crypt_tkip");
            ops = ieee80211_get_crypto_ops(param->u.crypt.alg);
      } else if (ops == NULL && strcmp(param->u.crypt.alg, "CCMP") == 0) {
            request_module("ieee80211_crypt_ccmp");
            ops = ieee80211_get_crypto_ops(param->u.crypt.alg);
      }
      if (ops == NULL) {
            printk(KERN_DEBUG "%s: unknown crypto alg '%s'\n",
                   local->dev->name, param->u.crypt.alg);
            param->u.crypt.err = HOSTAP_CRYPT_ERR_UNKNOWN_ALG;
            ret = -EINVAL;
            goto done;
      }

      /* station based encryption and other than WEP algorithms require
       * host-based encryption, so force them on automatically */
      local->host_decrypt = local->host_encrypt = 1;

      if (*crypt == NULL || (*crypt)->ops != ops) {
            struct ieee80211_crypt_data *new_crypt;

            prism2_crypt_delayed_deinit(local, crypt);

            new_crypt = kzalloc(sizeof(struct ieee80211_crypt_data),
                        GFP_KERNEL);
            if (new_crypt == NULL) {
                  ret = -ENOMEM;
                  goto done;
            }
            new_crypt->ops = ops;
            new_crypt->priv = new_crypt->ops->init(param->u.crypt.idx);
            if (new_crypt->priv == NULL) {
                  kfree(new_crypt);
                  param->u.crypt.err =
                        HOSTAP_CRYPT_ERR_CRYPT_INIT_FAILED;
                  ret = -EINVAL;
                  goto done;
            }

            *crypt = new_crypt;
      }

      if ((!(param->u.crypt.flags & HOSTAP_CRYPT_FLAG_SET_TX_KEY) ||
           param->u.crypt.key_len > 0) && (*crypt)->ops->set_key &&
          (*crypt)->ops->set_key(param->u.crypt.key,
                           param->u.crypt.key_len, param->u.crypt.seq,
                           (*crypt)->priv) < 0) {
            printk(KERN_DEBUG "%s: key setting failed\n",
                   local->dev->name);
            param->u.crypt.err = HOSTAP_CRYPT_ERR_KEY_SET_FAILED;
            ret = -EINVAL;
            goto done;
      }

      if (param->u.crypt.flags & HOSTAP_CRYPT_FLAG_SET_TX_KEY) {
            if (!sta_ptr)
                  local->tx_keyidx = param->u.crypt.idx;
            else if (param->u.crypt.idx) {
                  printk(KERN_DEBUG "%s: TX key idx setting failed\n",
                         local->dev->name);
                  param->u.crypt.err =
                        HOSTAP_CRYPT_ERR_TX_KEY_SET_FAILED;
                  ret = -EINVAL;
                  goto done;
            }
      }

 done:
      if (sta_ptr)
            hostap_handle_sta_release(sta_ptr);

      /* Do not reset port0 if card is in Managed mode since resetting will
       * generate new IEEE 802.11 authentication which may end up in looping
       * with IEEE 802.1X. Prism2 documentation seem to require port reset
       * after WEP configuration. However, keys are apparently changed at
       * least in Managed mode. */
      if (ret == 0 &&
          (hostap_set_encryption(local) ||
           (local->iw_mode != IW_MODE_INFRA &&
            local->func->reset_port(local->dev)))) {
            param->u.crypt.err = HOSTAP_CRYPT_ERR_CARD_CONF_FAILED;
            return -EINVAL;
      }

      return ret;
}


static int prism2_ioctl_get_encryption(local_info_t *local,
                               struct prism2_hostapd_param *param,
                               int param_len)
{
      struct ieee80211_crypt_data **crypt;
      void *sta_ptr;
      int max_key_len;

      param->u.crypt.err = 0;

      max_key_len = param_len -
            (int) ((char *) param->u.crypt.key - (char *) param);
      if (max_key_len < 0)
            return -EINVAL;

      if (param->sta_addr[0] == 0xff && param->sta_addr[1] == 0xff &&
          param->sta_addr[2] == 0xff && param->sta_addr[3] == 0xff &&
          param->sta_addr[4] == 0xff && param->sta_addr[5] == 0xff) {
            sta_ptr = NULL;
            if (param->u.crypt.idx >= WEP_KEYS)
                  param->u.crypt.idx = local->tx_keyidx;
            crypt = &local->crypt[param->u.crypt.idx];
      } else {
            param->u.crypt.idx = 0;
            sta_ptr = ap_crypt_get_ptrs(local->ap, param->sta_addr, 0,
                                  &crypt);

            if (sta_ptr == NULL) {
                  param->u.crypt.err = HOSTAP_CRYPT_ERR_UNKNOWN_ADDR;
                  return -EINVAL;
            }
      }

      if (*crypt == NULL || (*crypt)->ops == NULL) {
            memcpy(param->u.crypt.alg, "none", 5);
            param->u.crypt.key_len = 0;
            param->u.crypt.idx = 0xff;
      } else {
            strncpy(param->u.crypt.alg, (*crypt)->ops->name,
                  HOSTAP_CRYPT_ALG_NAME_LEN);
            param->u.crypt.key_len = 0;

            memset(param->u.crypt.seq, 0, 8);
            if ((*crypt)->ops->get_key) {
                  param->u.crypt.key_len =
                        (*crypt)->ops->get_key(param->u.crypt.key,
                                           max_key_len,
                                           param->u.crypt.seq,
                                           (*crypt)->priv);
            }
      }

      if (sta_ptr)
            hostap_handle_sta_release(sta_ptr);

      return 0;
}


static int prism2_ioctl_get_rid(local_info_t *local,
                        struct prism2_hostapd_param *param,
                        int param_len)
{
      int max_len, res;

      max_len = param_len - PRISM2_HOSTAPD_RID_HDR_LEN;
      if (max_len < 0)
            return -EINVAL;

      res = local->func->get_rid(local->dev, param->u.rid.rid,
                           param->u.rid.data, param->u.rid.len, 0);
      if (res >= 0) {
            param->u.rid.len = res;
            return 0;
      }

      return res;
}


static int prism2_ioctl_set_rid(local_info_t *local,
                        struct prism2_hostapd_param *param,
                        int param_len)
{
      int max_len;

      max_len = param_len - PRISM2_HOSTAPD_RID_HDR_LEN;
      if (max_len < 0 || max_len < param->u.rid.len)
            return -EINVAL;

      return local->func->set_rid(local->dev, param->u.rid.rid,
                            param->u.rid.data, param->u.rid.len);
}


static int prism2_ioctl_set_assoc_ap_addr(local_info_t *local,
                                struct prism2_hostapd_param *param,
                                int param_len)
{
      DECLARE_MAC_BUF(mac);
      printk(KERN_DEBUG "%ssta: associated as client with AP "
             "%s\n",
             local->dev->name, print_mac(mac, param->sta_addr));
      memcpy(local->assoc_ap_addr, param->sta_addr, ETH_ALEN);
      return 0;
}


static int prism2_ioctl_siwgenie(struct net_device *dev,
                         struct iw_request_info *info,
                         struct iw_point *data, char *extra)
{
      return prism2_set_genericelement(dev, extra, data->length);
}


static int prism2_ioctl_giwgenie(struct net_device *dev,
                         struct iw_request_info *info,
                         struct iw_point *data, char *extra)
{
      struct hostap_interface *iface = netdev_priv(dev);
      local_info_t *local = iface->local;
      int len = local->generic_elem_len - 2;

      if (len <= 0 || local->generic_elem == NULL) {
            data->length = 0;
            return 0;
      }

      if (data->length < len)
            return -E2BIG;

      data->length = len;
      memcpy(extra, local->generic_elem + 2, len);

      return 0;
}


static int prism2_ioctl_set_generic_element(local_info_t *local,
                                  struct prism2_hostapd_param *param,
                                  int param_len)
{
      int max_len, len;

      len = param->u.generic_elem.len;
      max_len = param_len - PRISM2_HOSTAPD_GENERIC_ELEMENT_HDR_LEN;
      if (max_len < 0 || max_len < len)
            return -EINVAL;

      return prism2_set_genericelement(local->dev,
                               param->u.generic_elem.data, len);
}


static int prism2_ioctl_siwmlme(struct net_device *dev,
                        struct iw_request_info *info,
                        struct iw_point *data, char *extra)
{
      struct hostap_interface *iface = netdev_priv(dev);
      local_info_t *local = iface->local;
      struct iw_mlme *mlme = (struct iw_mlme *) extra;
      u16 reason;

      reason = cpu_to_le16(mlme->reason_code);

      switch (mlme->cmd) {
      case IW_MLME_DEAUTH:
            return prism2_sta_send_mgmt(local, mlme->addr.sa_data,
                                  IEEE80211_STYPE_DEAUTH,
                                  (u8 *) &reason, 2);
      case IW_MLME_DISASSOC:
            return prism2_sta_send_mgmt(local, mlme->addr.sa_data,
                                  IEEE80211_STYPE_DISASSOC,
                                  (u8 *) &reason, 2);
      default:
            return -EOPNOTSUPP;
      }
}


static int prism2_ioctl_mlme(local_info_t *local,
                       struct prism2_hostapd_param *param)
{
      u16 reason;

      reason = cpu_to_le16(param->u.mlme.reason_code);
      switch (param->u.mlme.cmd) {
      case MLME_STA_DEAUTH:
            return prism2_sta_send_mgmt(local, param->sta_addr,
                                  IEEE80211_STYPE_DEAUTH,
                                  (u8 *) &reason, 2);
      case MLME_STA_DISASSOC:
            return prism2_sta_send_mgmt(local, param->sta_addr,
                                  IEEE80211_STYPE_DISASSOC,
                                  (u8 *) &reason, 2);
      default:
            return -EOPNOTSUPP;
      }
}


static int prism2_ioctl_scan_req(local_info_t *local,
                         struct prism2_hostapd_param *param)
{
#ifndef PRISM2_NO_STATION_MODES
      if ((local->iw_mode != IW_MODE_INFRA &&
           local->iw_mode != IW_MODE_ADHOC) ||
          (local->sta_fw_ver < PRISM2_FW_VER(1,3,1)))
            return -EOPNOTSUPP;

      if (!local->dev_enabled)
            return -ENETDOWN;

      return prism2_request_hostscan(local->dev, param->u.scan_req.ssid,
                               param->u.scan_req.ssid_len);
#else /* PRISM2_NO_STATION_MODES */
      return -EOPNOTSUPP;
#endif /* PRISM2_NO_STATION_MODES */
}


static int prism2_ioctl_priv_hostapd(local_info_t *local, struct iw_point *p)
{
      struct prism2_hostapd_param *param;
      int ret = 0;
      int ap_ioctl = 0;

      if (p->length < sizeof(struct prism2_hostapd_param) ||
          p->length > PRISM2_HOSTAPD_MAX_BUF_SIZE || !p->pointer)
            return -EINVAL;

      param = kmalloc(p->length, GFP_KERNEL);
      if (param == NULL)
            return -ENOMEM;

      if (copy_from_user(param, p->pointer, p->length)) {
            ret = -EFAULT;
            goto out;
      }

      switch (param->cmd) {
      case PRISM2_SET_ENCRYPTION:
            ret = prism2_ioctl_set_encryption(local, param, p->length);
            break;
      case PRISM2_GET_ENCRYPTION:
            ret = prism2_ioctl_get_encryption(local, param, p->length);
            break;
      case PRISM2_HOSTAPD_GET_RID:
            ret = prism2_ioctl_get_rid(local, param, p->length);
            break;
      case PRISM2_HOSTAPD_SET_RID:
            ret = prism2_ioctl_set_rid(local, param, p->length);
            break;
      case PRISM2_HOSTAPD_SET_ASSOC_AP_ADDR:
            ret = prism2_ioctl_set_assoc_ap_addr(local, param, p->length);
            break;
      case PRISM2_HOSTAPD_SET_GENERIC_ELEMENT:
            ret = prism2_ioctl_set_generic_element(local, param,
                                           p->length);
            break;
      case PRISM2_HOSTAPD_MLME:
            ret = prism2_ioctl_mlme(local, param);
            break;
      case PRISM2_HOSTAPD_SCAN_REQ:
            ret = prism2_ioctl_scan_req(local, param);
            break;
      default:
            ret = prism2_hostapd(local->ap, param);
            ap_ioctl = 1;
            break;
      }

      if (ret == 1 || !ap_ioctl) {
            if (copy_to_user(p->pointer, param, p->length)) {
                  ret = -EFAULT;
                  goto out;
            } else if (ap_ioctl)
                  ret = 0;
      }

 out:
      kfree(param);
      return ret;
}


static void prism2_get_drvinfo(struct net_device *dev,
                         struct ethtool_drvinfo *info)
{
      struct hostap_interface *iface;
      local_info_t *local;

      iface = netdev_priv(dev);
      local = iface->local;

      strncpy(info->driver, "hostap", sizeof(info->driver) - 1);
      snprintf(info->fw_version, sizeof(info->fw_version) - 1,
             "%d.%d.%d", (local->sta_fw_ver >> 16) & 0xff,
             (local->sta_fw_ver >> 8) & 0xff,
             local->sta_fw_ver & 0xff);
}

const struct ethtool_ops prism2_ethtool_ops = {
      .get_drvinfo = prism2_get_drvinfo
};


/* Structures to export the Wireless Handlers */

static const iw_handler prism2_handler[] =
{
      (iw_handler) NULL,                        /* SIOCSIWCOMMIT */
      (iw_handler) prism2_get_name,             /* SIOCGIWNAME */
      (iw_handler) NULL,                        /* SIOCSIWNWID */
      (iw_handler) NULL,                        /* SIOCGIWNWID */
      (iw_handler) prism2_ioctl_siwfreq,        /* SIOCSIWFREQ */
      (iw_handler) prism2_ioctl_giwfreq,        /* SIOCGIWFREQ */
      (iw_handler) prism2_ioctl_siwmode,        /* SIOCSIWMODE */
      (iw_handler) prism2_ioctl_giwmode,        /* SIOCGIWMODE */
      (iw_handler) prism2_ioctl_siwsens,        /* SIOCSIWSENS */
      (iw_handler) prism2_ioctl_giwsens,        /* SIOCGIWSENS */
      (iw_handler) NULL /* not used */,         /* SIOCSIWRANGE */
      (iw_handler) prism2_ioctl_giwrange,       /* SIOCGIWRANGE */
      (iw_handler) NULL /* not used */,         /* SIOCSIWPRIV */
      (iw_handler) NULL /* kernel code */,            /* SIOCGIWPRIV */
      (iw_handler) NULL /* not used */,         /* SIOCSIWSTATS */
      (iw_handler) NULL /* kernel code */,            /* SIOCGIWSTATS */
      iw_handler_set_spy,                       /* SIOCSIWSPY */
      iw_handler_get_spy,                       /* SIOCGIWSPY */
      iw_handler_set_thrspy,                    /* SIOCSIWTHRSPY */
      iw_handler_get_thrspy,                    /* SIOCGIWTHRSPY */
      (iw_handler) prism2_ioctl_siwap,          /* SIOCSIWAP */
      (iw_handler) prism2_ioctl_giwap,          /* SIOCGIWAP */
      (iw_handler) prism2_ioctl_siwmlme,        /* SIOCSIWMLME */
      (iw_handler) prism2_ioctl_giwaplist,            /* SIOCGIWAPLIST */
      (iw_handler) prism2_ioctl_siwscan,        /* SIOCSIWSCAN */
      (iw_handler) prism2_ioctl_giwscan,        /* SIOCGIWSCAN */
      (iw_handler) prism2_ioctl_siwessid,       /* SIOCSIWESSID */
      (iw_handler) prism2_ioctl_giwessid,       /* SIOCGIWESSID */
      (iw_handler) prism2_ioctl_siwnickn,       /* SIOCSIWNICKN */
      (iw_handler) prism2_ioctl_giwnickn,       /* SIOCGIWNICKN */
      (iw_handler) NULL,                        /* -- hole -- */
      (iw_handler) NULL,                        /* -- hole -- */
      (iw_handler) prism2_ioctl_siwrate,        /* SIOCSIWRATE */
      (iw_handler) prism2_ioctl_giwrate,        /* SIOCGIWRATE */
      (iw_handler) prism2_ioctl_siwrts,         /* SIOCSIWRTS */
      (iw_handler) prism2_ioctl_giwrts,         /* SIOCGIWRTS */
      (iw_handler) prism2_ioctl_siwfrag,        /* SIOCSIWFRAG */
      (iw_handler) prism2_ioctl_giwfrag,        /* SIOCGIWFRAG */
      (iw_handler) prism2_ioctl_siwtxpow,       /* SIOCSIWTXPOW */
      (iw_handler) prism2_ioctl_giwtxpow,       /* SIOCGIWTXPOW */
      (iw_handler) prism2_ioctl_siwretry,       /* SIOCSIWRETRY */
      (iw_handler) prism2_ioctl_giwretry,       /* SIOCGIWRETRY */
      (iw_handler) prism2_ioctl_siwencode,            /* SIOCSIWENCODE */
      (iw_handler) prism2_ioctl_giwencode,            /* SIOCGIWENCODE */
      (iw_handler) prism2_ioctl_siwpower,       /* SIOCSIWPOWER */
      (iw_handler) prism2_ioctl_giwpower,       /* SIOCGIWPOWER */
      (iw_handler) NULL,                        /* -- hole -- */
      (iw_handler) NULL,                        /* -- hole -- */
      (iw_handler) prism2_ioctl_siwgenie,       /* SIOCSIWGENIE */
      (iw_handler) prism2_ioctl_giwgenie,       /* SIOCGIWGENIE */
      (iw_handler) prism2_ioctl_siwauth,        /* SIOCSIWAUTH */
      (iw_handler) prism2_ioctl_giwauth,        /* SIOCGIWAUTH */
      (iw_handler) prism2_ioctl_siwencodeext,         /* SIOCSIWENCODEEXT */
      (iw_handler) prism2_ioctl_giwencodeext,         /* SIOCGIWENCODEEXT */
      (iw_handler) NULL,                        /* SIOCSIWPMKSA */
      (iw_handler) NULL,                        /* -- hole -- */
};

static const iw_handler prism2_private_handler[] =
{                                         /* SIOCIWFIRSTPRIV + */
      (iw_handler) prism2_ioctl_priv_prism2_param,    /* 0 */
      (iw_handler) prism2_ioctl_priv_get_prism2_param, /* 1 */
      (iw_handler) prism2_ioctl_priv_writemif,  /* 2 */
      (iw_handler) prism2_ioctl_priv_readmif,         /* 3 */
};

const struct iw_handler_def hostap_iw_handler_def =
{
      .num_standard     = ARRAY_SIZE(prism2_handler),
      .num_private      = ARRAY_SIZE(prism2_private_handler),
      .num_private_args = ARRAY_SIZE(prism2_priv),
      .standard   = (iw_handler *) prism2_handler,
      .private    = (iw_handler *) prism2_private_handler,
      .private_args     = (struct iw_priv_args *) prism2_priv,
      .get_wireless_stats = hostap_get_wireless_stats,
};


int hostap_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
{
      struct iwreq *wrq = (struct iwreq *) ifr;
      struct hostap_interface *iface;
      local_info_t *local;
      int ret = 0;

      iface = netdev_priv(dev);
      local = iface->local;

      switch (cmd) {
            /* Private ioctls (iwpriv) that have not yet been converted
             * into new wireless extensions API */

      case PRISM2_IOCTL_INQUIRE:
            if (!capable(CAP_NET_ADMIN)) ret = -EPERM;
            else ret = prism2_ioctl_priv_inquire(dev, (int *) wrq->u.name);
            break;

      case PRISM2_IOCTL_MONITOR:
            if (!capable(CAP_NET_ADMIN)) ret = -EPERM;
            else ret = prism2_ioctl_priv_monitor(dev, (int *) wrq->u.name);
            break;

      case PRISM2_IOCTL_RESET:
            if (!capable(CAP_NET_ADMIN)) ret = -EPERM;
            else ret = prism2_ioctl_priv_reset(dev, (int *) wrq->u.name);
            break;

      case PRISM2_IOCTL_WDS_ADD:
            if (!capable(CAP_NET_ADMIN)) ret = -EPERM;
            else ret = prism2_wds_add(local, wrq->u.ap_addr.sa_data, 1);
            break;

      case PRISM2_IOCTL_WDS_DEL:
            if (!capable(CAP_NET_ADMIN)) ret = -EPERM;
            else ret = prism2_wds_del(local, wrq->u.ap_addr.sa_data, 1, 0);
            break;

      case PRISM2_IOCTL_SET_RID_WORD:
            if (!capable(CAP_NET_ADMIN)) ret = -EPERM;
            else ret = prism2_ioctl_priv_set_rid_word(dev,
                                            (int *) wrq->u.name);
            break;

#ifndef PRISM2_NO_KERNEL_IEEE80211_MGMT
      case PRISM2_IOCTL_MACCMD:
            if (!capable(CAP_NET_ADMIN)) ret = -EPERM;
            else ret = ap_mac_cmd_ioctl(local, (int *) wrq->u.name);
            break;

      case PRISM2_IOCTL_ADDMAC:
            if (!capable(CAP_NET_ADMIN)) ret = -EPERM;
            else ret = ap_control_add_mac(&local->ap->mac_restrictions,
                                    wrq->u.ap_addr.sa_data);
            break;
      case PRISM2_IOCTL_DELMAC:
            if (!capable(CAP_NET_ADMIN)) ret = -EPERM;
            else ret = ap_control_del_mac(&local->ap->mac_restrictions,
                                    wrq->u.ap_addr.sa_data);
            break;
      case PRISM2_IOCTL_KICKMAC:
            if (!capable(CAP_NET_ADMIN)) ret = -EPERM;
            else ret = ap_control_kick_mac(local->ap, local->dev,
                                     wrq->u.ap_addr.sa_data);
            break;
#endif /* PRISM2_NO_KERNEL_IEEE80211_MGMT */


            /* Private ioctls that are not used with iwpriv;
             * in SIOCDEVPRIVATE range */

#ifdef PRISM2_DOWNLOAD_SUPPORT
      case PRISM2_IOCTL_DOWNLOAD:
            if (!capable(CAP_NET_ADMIN)) ret = -EPERM;
            else ret = prism2_ioctl_priv_download(local, &wrq->u.data);
            break;
#endif /* PRISM2_DOWNLOAD_SUPPORT */

      case PRISM2_IOCTL_HOSTAPD:
            if (!capable(CAP_NET_ADMIN)) ret = -EPERM;
            else ret = prism2_ioctl_priv_hostapd(local, &wrq->u.data);
            break;

      default:
            ret = -EOPNOTSUPP;
            break;
      }

      return ret;
}

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