/*
 *  Copyright (C) 2002 Intersil Americas Inc.
 *            (C) 2003,2004 Aurelien Alleaume <slts@free.fr>
 *            (C) 2003 Herbert Valerio Riedel <hvr@gnu.org>
 *            (C) 2003 Luis R. Rodriguez <mcgrof@ruslug.rutgers.edu>
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */

#include <linux/capability.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/if_arp.h>
#include <linux/pci.h>

#include <asm/uaccess.h>

#include "prismcompat.h"
#include "isl_ioctl.h"
#include "islpci_mgt.h"
#include "isl_oid.h"            /* additional types and defs for isl38xx fw */
#include "oid_mgt.h"

#include <net/iw_handler.h>     /* New driver API */

#define KEY_SIZE_WEP104 13      /* 104/128-bit WEP keys */
#define KEY_SIZE_WEP40  5       /* 40/64-bit WEP keys */
/* KEY_SIZE_TKIP should match isl_oid.h, struct obj_key.key[] size */
#define KEY_SIZE_TKIP   32      /* TKIP keys */

static void prism54_wpa_bss_ie_add(islpci_private *priv, u8 *bssid,
                                u8 *wpa_ie, size_t wpa_ie_len);
static size_t prism54_wpa_bss_ie_get(islpci_private *priv, u8 *bssid, u8 *wpa_ie);
static int prism54_set_wpa(struct net_device *, struct iw_request_info *,
                                __u32 *, char *);

/* In 500 kbps */
static const unsigned char scan_rate_list[] = { 2, 4, 11, 22,
                                                12, 18, 24, 36,
                                                48, 72, 96, 108 };

/**
 * prism54_mib_mode_helper - MIB change mode helper function
 * @mib: the &struct islpci_mib object to modify
 * @iw_mode: new mode (%IW_MODE_*)
 *
 *  This is a helper function, hence it does not lock. Make sure
 *  caller deals with locking *if* necessary. This function sets the
 *  mode-dependent mib values and does the mapping of the Linux
 *  Wireless API modes to Device firmware modes. It also checks for
 *  correct valid Linux wireless modes.
 */
static int
prism54_mib_mode_helper(islpci_private *priv, u32 iw_mode)
{
        u32 config = INL_CONFIG_MANUALRUN;
        u32 mode, bsstype;

        /* For now, just catch early the Repeater and Secondary modes here */
        if (iw_mode == IW_MODE_REPEAT || iw_mode == IW_MODE_SECOND) {
                printk(KERN_DEBUG
                       "%s(): Sorry, Repeater mode and Secondary mode "
                       "are not yet supported by this driver.\n", __func__);
                return -EINVAL;
        }

        priv->iw_mode = iw_mode;

        switch (iw_mode) {
        case IW_MODE_AUTO:
                mode = INL_MODE_CLIENT;
                bsstype = DOT11_BSSTYPE_ANY;
                break;
        case IW_MODE_ADHOC:
                mode = INL_MODE_CLIENT;
                bsstype = DOT11_BSSTYPE_IBSS;
                break;
        case IW_MODE_INFRA:
                mode = INL_MODE_CLIENT;
                bsstype = DOT11_BSSTYPE_INFRA;
                break;
        case IW_MODE_MASTER:
                mode = INL_MODE_AP;
                bsstype = DOT11_BSSTYPE_INFRA;
                break;
        case IW_MODE_MONITOR:
                mode = INL_MODE_PROMISCUOUS;
                bsstype = DOT11_BSSTYPE_ANY;
                config |= INL_CONFIG_RXANNEX;
                break;
        default:
                return -EINVAL;
        }

        if (init_wds)
                config |= INL_CONFIG_WDS;
        mgt_set(priv, DOT11_OID_BSSTYPE, &bsstype);
        mgt_set(priv, OID_INL_CONFIG, &config);
        mgt_set(priv, OID_INL_MODE, &mode);

        return 0;
}

/**
 * prism54_mib_init - fill MIB cache with defaults
 *
 *  this function initializes the struct given as @mib with defaults,
 *  of which many are retrieved from the global module parameter
 *  variables.
 */

void
prism54_mib_init(islpci_private *priv)
{
        u32 channel, authen, wep, filter, dot1x, mlme, conformance, power, mode;
        struct obj_buffer psm_buffer = {
                .size = PSM_BUFFER_SIZE,
                .addr = priv->device_psm_buffer
        };

        channel = CARD_DEFAULT_CHANNEL;
        authen = CARD_DEFAULT_AUTHEN;
        wep = CARD_DEFAULT_WEP;
        filter = CARD_DEFAULT_FILTER; /* (0) Do not filter un-encrypted data */
        dot1x = CARD_DEFAULT_DOT1X;
        mlme = CARD_DEFAULT_MLME_MODE;
        conformance = CARD_DEFAULT_CONFORMANCE;
        power = 127;
        mode = CARD_DEFAULT_IW_MODE;

        mgt_set(priv, DOT11_OID_CHANNEL, &channel);
        mgt_set(priv, DOT11_OID_AUTHENABLE, &authen);
        mgt_set(priv, DOT11_OID_PRIVACYINVOKED, &wep);
        mgt_set(priv, DOT11_OID_PSMBUFFER, &psm_buffer);
        mgt_set(priv, DOT11_OID_EXUNENCRYPTED, &filter);
        mgt_set(priv, DOT11_OID_DOT1XENABLE, &dot1x);
        mgt_set(priv, DOT11_OID_MLMEAUTOLEVEL, &mlme);
        mgt_set(priv, OID_INL_DOT11D_CONFORMANCE, &conformance);
        mgt_set(priv, OID_INL_OUTPUTPOWER, &power);

        /* This sets all of the mode-dependent values */
        prism54_mib_mode_helper(priv, mode);
}

/* this will be executed outside of atomic context thanks to
 * schedule_work(), thus we can as well use sleeping semaphore
 * locking */
void
prism54_update_stats(struct work_struct *work)
{
        islpci_private *priv = container_of(work, islpci_private, stats_work);
        char *data;
        int j;
        struct obj_bss bss, *bss2;
        union oid_res_t r;

        mutex_lock(&priv->stats_lock);

/* Noise floor.
 * I'm not sure if the unit is dBm.
 * Note : If we are not connected, this value seems to be irrelevant. */

        mgt_get_request(priv, DOT11_OID_NOISEFLOOR, 0, NULL, &r);
        priv->local_iwstatistics.qual.noise = r.u;

/* Get the rssi of the link. To do this we need to retrieve a bss. */

        /* First get the MAC address of the AP we are associated with. */
        mgt_get_request(priv, DOT11_OID_BSSID, 0, NULL, &r);
        data = r.ptr;

        /* copy this MAC to the bss */
        memcpy(bss.address, data, 6);
        kfree(data);

        /* now ask for the corresponding bss */
        j = mgt_get_request(priv, DOT11_OID_BSSFIND, 0, (void *) &bss, &r);
        bss2 = r.ptr;
        /* report the rssi and use it to calculate
         *  link quality through a signal-noise
         *  ratio */
        priv->local_iwstatistics.qual.level = bss2->rssi;
        priv->local_iwstatistics.qual.qual =
            bss2->rssi - priv->iwstatistics.qual.noise;

        kfree(bss2);

        /* report that the stats are new */
        priv->local_iwstatistics.qual.updated = 0x7;

/* Rx : unable to decrypt the MPDU */
        mgt_get_request(priv, DOT11_OID_PRIVRXFAILED, 0, NULL, &r);
        priv->local_iwstatistics.discard.code = r.u;

/* Tx : Max MAC retries num reached */
        mgt_get_request(priv, DOT11_OID_MPDUTXFAILED, 0, NULL, &r);
        priv->local_iwstatistics.discard.retries = r.u;

        mutex_unlock(&priv->stats_lock);

        return;
}

struct iw_statistics *
prism54_get_wireless_stats(struct net_device *ndev)
{
        islpci_private *priv = netdev_priv(ndev);

        /* If the stats are being updated return old data */
        if (mutex_trylock(&priv->stats_lock)) {
                memcpy(&priv->iwstatistics, &priv->local_iwstatistics,
                       sizeof (struct iw_statistics));
                /* They won't be marked updated for the next time */
                priv->local_iwstatistics.qual.updated = 0;
                mutex_unlock(&priv->stats_lock);
        } else
                priv->iwstatistics.qual.updated = 0;

        /* Update our wireless stats, but do not schedule to often
         * (max 1 HZ) */
        if ((priv->stats_timestamp == 0) ||
            time_after(jiffies, priv->stats_timestamp + 1 * HZ)) {
                schedule_work(&priv->stats_work);
                priv->stats_timestamp = jiffies;
        }

        return &priv->iwstatistics;
}

static int
prism54_commit(struct net_device *ndev, struct iw_request_info *info,
               char *cwrq, char *extra)
{
        islpci_private *priv = netdev_priv(ndev);

        /* simply re-set the last set SSID, this should commit most stuff */

        /* Commit in Monitor mode is not necessary, also setting essid
         * in Monitor mode does not make sense and isn't allowed for this
         * device's firmware */
        if (priv->iw_mode != IW_MODE_MONITOR)
                return mgt_set_request(priv, DOT11_OID_SSID, 0, NULL);
        return 0;
}

static int
prism54_get_name(struct net_device *ndev, struct iw_request_info *info,
                 char *cwrq, char *extra)
{
        islpci_private *priv = netdev_priv(ndev);
        char *capabilities;
        union oid_res_t r;
        int rvalue;

        if (islpci_get_state(priv) < PRV_STATE_INIT) {
                strncpy(cwrq, "NOT READY!", IFNAMSIZ);
                return 0;
        }
        rvalue = mgt_get_request(priv, OID_INL_PHYCAPABILITIES, 0, NULL, &r);

        switch (r.u) {
        case INL_PHYCAP_5000MHZ:
                capabilities = "IEEE 802.11a/b/g";
                break;
        case INL_PHYCAP_FAA:
                capabilities = "IEEE 802.11b/g - FAA Support";
                break;
        case INL_PHYCAP_2400MHZ:
        default:
                capabilities = "IEEE 802.11b/g";        /* Default */
                break;
        }
        strncpy(cwrq, capabilities, IFNAMSIZ);
        return rvalue;
}

static int
prism54_set_freq(struct net_device *ndev, struct iw_request_info *info,
                 struct iw_freq *fwrq, char *extra)
{
        islpci_private *priv = netdev_priv(ndev);
        int rvalue;
        u32 c;

        if (fwrq->m < 1000)
                /* we have a channel number */
                c = fwrq->m;
        else
                c = (fwrq->e == 1) ? channel_of_freq(fwrq->m / 100000) : 0;

        rvalue = c ? mgt_set_request(priv, DOT11_OID_CHANNEL, 0, &c) : -EINVAL;

        /* Call commit handler */
        return (rvalue ? rvalue : -EINPROGRESS);
}

static int
prism54_get_freq(struct net_device *ndev, struct iw_request_info *info,
                 struct iw_freq *fwrq, char *extra)
{
        islpci_private *priv = netdev_priv(ndev);
        union oid_res_t r;
        int rvalue;

        rvalue = mgt_get_request(priv, DOT11_OID_CHANNEL, 0, NULL, &r);
        fwrq->i = r.u;
        rvalue |= mgt_get_request(priv, DOT11_OID_FREQUENCY, 0, NULL, &r);
        fwrq->m = r.u;
        fwrq->e = 3;

        return rvalue;
}

static int
prism54_set_mode(struct net_device *ndev, struct iw_request_info *info,
                 __u32 * uwrq, char *extra)
{
        islpci_private *priv = netdev_priv(ndev);
        u32 mlmeautolevel = CARD_DEFAULT_MLME_MODE;

        /* Let's see if the user passed a valid Linux Wireless mode */
        if (*uwrq > IW_MODE_MONITOR || *uwrq < IW_MODE_AUTO) {
                printk(KERN_DEBUG
                       "%s: %s() You passed a non-valid init_mode.\n",
                       priv->ndev->name, __func__);
                return -EINVAL;
        }

        down_write(&priv->mib_sem);

        if (prism54_mib_mode_helper(priv, *uwrq)) {
                up_write(&priv->mib_sem);
                return -EOPNOTSUPP;
        }

        /* the ACL code needs an intermediate mlmeautolevel. The wpa stuff an
         * extended one.
         */
        if ((*uwrq == IW_MODE_MASTER) && (priv->acl.policy != MAC_POLICY_OPEN))
                mlmeautolevel = DOT11_MLME_INTERMEDIATE;
        if (priv->wpa)
                mlmeautolevel = DOT11_MLME_EXTENDED;

        mgt_set(priv, DOT11_OID_MLMEAUTOLEVEL, &mlmeautolevel);

        if (mgt_commit(priv)) {
                up_write(&priv->mib_sem);
                return -EIO;
        }
        priv->ndev->type = (priv->iw_mode == IW_MODE_MONITOR)
            ? priv->monitor_type : ARPHRD_ETHER;
        up_write(&priv->mib_sem);

        return 0;
}

/* Use mib cache */
static int
prism54_get_mode(struct net_device *ndev, struct iw_request_info *info,
                 __u32 * uwrq, char *extra)
{
        islpci_private *priv = netdev_priv(ndev);

        BUG_ON((priv->iw_mode < IW_MODE_AUTO) || (priv->iw_mode >
                                                  IW_MODE_MONITOR));
        *uwrq = priv->iw_mode;

        return 0;
}

/* we use DOT11_OID_EDTHRESHOLD. From what I guess the card will not try to
 * emit data if (sensitivity > rssi - noise) (in dBm).
 * prism54_set_sens does not seem to work.
 */

static int
prism54_set_sens(struct net_device *ndev, struct iw_request_info *info,
                 struct iw_param *vwrq, char *extra)
{
        islpci_private *priv = netdev_priv(ndev);
        u32 sens;

        /* by default  the card sets this to 20. */
        sens = vwrq->disabled ? 20 : vwrq->value;

        return mgt_set_request(priv, DOT11_OID_EDTHRESHOLD, 0, &sens);
}

static int
prism54_get_sens(struct net_device *ndev, struct iw_request_info *info,
                 struct iw_param *vwrq, char *extra)
{
        islpci_private *priv = netdev_priv(ndev);
        union oid_res_t r;
        int rvalue;

        rvalue = mgt_get_request(priv, DOT11_OID_EDTHRESHOLD, 0, NULL, &r);

        vwrq->value = r.u;
        vwrq->disabled = (vwrq->value == 0);
        vwrq->fixed = 1;

        return rvalue;
}

static int
prism54_get_range(struct net_device *ndev, struct iw_request_info *info,
                  struct iw_point *dwrq, char *extra)
{
        struct iw_range *range = (struct iw_range *) extra;
        islpci_private *priv = netdev_priv(ndev);
        u8 *data;
        int i, m, rvalue;
        struct obj_frequencies *freq;
        union oid_res_t r;

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

        /* set the wireless extension version number */
        range->we_version_source = SUPPORTED_WIRELESS_EXT;
        range->we_version_compiled = WIRELESS_EXT;

        /* Now the encoding capabilities */
        range->num_encoding_sizes = 3;
        /* 64(40) bits WEP */
        range->encoding_size[0] = 5;
        /* 128(104) bits WEP */
        range->encoding_size[1] = 13;
        /* 256 bits for WPA-PSK */
        range->encoding_size[2] = 32;
        /* 4 keys are allowed */
        range->max_encoding_tokens = 4;

        /* we don't know the quality range... */
        range->max_qual.level = 0;
        range->max_qual.noise = 0;
        range->max_qual.qual = 0;
        /* these value describe an average quality. Needs more tweaking... */
        range->avg_qual.level = -80;    /* -80 dBm */
        range->avg_qual.noise = 0;      /* don't know what to put here */
        range->avg_qual.qual = 0;

        range->sensitivity = 200;

        /* retry limit capabilities */
        range->retry_capa = IW_RETRY_LIMIT | IW_RETRY_LIFETIME;
        range->retry_flags = IW_RETRY_LIMIT;
        range->r_time_flags = IW_RETRY_LIFETIME;

        /* I don't know the range. Put stupid things here */
        range->min_retry = 1;
        range->max_retry = 65535;
        range->min_r_time = 1024;
        range->max_r_time = 65535 * 1024;

        /* txpower is supported in dBm's */
        range->txpower_capa = IW_TXPOW_DBM;

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

        range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_WPA2 |
                IW_ENC_CAPA_CIPHER_TKIP;

        if (islpci_get_state(priv) < PRV_STATE_INIT)
                return 0;

        /* Request the device for the supported frequencies
         * not really relevant since some devices will report the 5 GHz band
         * frequencies even if they don't support them.
         */
        rvalue =
            mgt_get_request(priv, DOT11_OID_SUPPORTEDFREQUENCIES, 0, NULL, &r);
        freq = r.ptr;

        range->num_channels = freq->nr;
        range->num_frequency = freq->nr;

        m = min(IW_MAX_FREQUENCIES, (int) freq->nr);
        for (i = 0; i < m; i++) {
                range->freq[i].m = freq->mhz[i];
                range->freq[i].e = 6;
                range->freq[i].i = channel_of_freq(freq->mhz[i]);
        }
        kfree(freq);

        rvalue |= mgt_get_request(priv, DOT11_OID_SUPPORTEDRATES, 0, NULL, &r);
        data = r.ptr;

        /* We got an array of char. It is NULL terminated. */
        i = 0;
        while ((i < IW_MAX_BITRATES) && (*data != 0)) {
                /*       the result must be in bps. The card gives us 500Kbps */
                range->bitrate[i] = *data * 500000;
                i++;
                data++;
        }
        range->num_bitrates = i;
        kfree(r.ptr);

        return rvalue;
}

/* Set AP address*/

static int
prism54_set_wap(struct net_device *ndev, struct iw_request_info *info,
                struct sockaddr *awrq, char *extra)
{
        islpci_private *priv = netdev_priv(ndev);
        char bssid[6];
        int rvalue;

        if (awrq->sa_family != ARPHRD_ETHER)
                return -EINVAL;

        /* prepare the structure for the set object */
        memcpy(&bssid[0], awrq->sa_data, 6);

        /* set the bssid -- does this make sense when in AP mode? */
        rvalue = mgt_set_request(priv, DOT11_OID_BSSID, 0, &bssid);

        return (rvalue ? rvalue : -EINPROGRESS);        /* Call commit handler */
}

/* get AP address*/

static int
prism54_get_wap(struct net_device *ndev, struct iw_request_info *info,
                struct sockaddr *awrq, char *extra)
{
        islpci_private *priv = netdev_priv(ndev);
        union oid_res_t r;
        int rvalue;

        rvalue = mgt_get_request(priv, DOT11_OID_BSSID, 0, NULL, &r);
        memcpy(awrq->sa_data, r.ptr, 6);
        awrq->sa_family = ARPHRD_ETHER;
        kfree(r.ptr);

        return rvalue;
}

static int
prism54_set_scan(struct net_device *dev, struct iw_request_info *info,
                 struct iw_param *vwrq, char *extra)
{
        /* hehe the device does this automagicaly */
        return 0;
}

/* a little helper that will translate our data into a card independent
 * format that the Wireless Tools will understand. This was inspired by
 * the "Aironet driver for 4500 and 4800 series cards" (GPL)
 */

static char *
prism54_translate_bss(struct net_device *ndev, struct iw_request_info *info,
                      char *current_ev, char *end_buf, struct obj_bss *bss,
                      char noise)
{
        struct iw_event iwe;    /* Temporary buffer */
        short cap;
        islpci_private *priv = netdev_priv(ndev);
        u8 wpa_ie[MAX_WPA_IE_LEN];
        size_t wpa_ie_len;

        /* The first entry must be the MAC address */
        memcpy(iwe.u.ap_addr.sa_data, bss->address, 6);
        iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
        iwe.cmd = SIOCGIWAP;
        current_ev = iwe_stream_add_event(info, current_ev, end_buf,
                                          &iwe, IW_EV_ADDR_LEN);

        /* The following entries will be displayed in the same order we give them */

        /* The ESSID. */
        iwe.u.data.length = bss->ssid.length;
        iwe.u.data.flags = 1;
        iwe.cmd = SIOCGIWESSID;
        current_ev = iwe_stream_add_point(info, current_ev, end_buf,
                                          &iwe, bss->ssid.octets);

        /* Capabilities */
#define CAP_ESS 0x01
#define CAP_IBSS 0x02
#define CAP_CRYPT 0x10

        /* Mode */
        cap = bss->capinfo;
        iwe.u.mode = 0;
        if (cap & CAP_ESS)
                iwe.u.mode = IW_MODE_MASTER;
        else if (cap & CAP_IBSS)
                iwe.u.mode = IW_MODE_ADHOC;
        iwe.cmd = SIOCGIWMODE;
        if (iwe.u.mode)
                current_ev = iwe_stream_add_event(info, current_ev, end_buf,
                                                  &iwe, IW_EV_UINT_LEN);

        /* Encryption capability */
        if (cap & CAP_CRYPT)
                iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
        else
                iwe.u.data.flags = IW_ENCODE_DISABLED;
        iwe.u.data.length = 0;
        iwe.cmd = SIOCGIWENCODE;
        current_ev = iwe_stream_add_point(info, current_ev, end_buf,
                                          &iwe, NULL);

        /* Add frequency. (short) bss->channel is the frequency in MHz */
        iwe.u.freq.m = bss->channel;
        iwe.u.freq.e = 6;
        iwe.cmd = SIOCGIWFREQ;
        current_ev = iwe_stream_add_event(info, current_ev, end_buf,
                                          &iwe, IW_EV_FREQ_LEN);

        /* Add quality statistics */
        iwe.u.qual.level = bss->rssi;
        iwe.u.qual.noise = noise;
        /* do a simple SNR for quality */
        iwe.u.qual.qual = bss->rssi - noise;
        iwe.cmd = IWEVQUAL;
        current_ev = iwe_stream_add_event(info, current_ev, end_buf,
                                          &iwe, IW_EV_QUAL_LEN);

        /* Add WPA/RSN Information Element, if any */
        wpa_ie_len = prism54_wpa_bss_ie_get(priv, bss->address, wpa_ie);
        if (wpa_ie_len > 0) {
                iwe.cmd = IWEVGENIE;
                iwe.u.data.length = min(wpa_ie_len, (size_t)MAX_WPA_IE_LEN);
                current_ev = iwe_stream_add_point(info, current_ev, end_buf,
                                                  &iwe, wpa_ie);
        }
        /* Do the bitrates */
        {
                char *current_val = current_ev + iwe_stream_lcp_len(info);
                int i;
                int mask;

                iwe.cmd = SIOCGIWRATE;
                /* Those two flags are ignored... */
                iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;

                /* Parse the bitmask */
                mask = 0x1;
                for(i = 0; i < sizeof(scan_rate_list); i++) {
                        if(bss->rates & mask) {
                                iwe.u.bitrate.value = (scan_rate_list[i] * 500000);
                                current_val = iwe_stream_add_value(
                                        info, current_ev, current_val,
                                        end_buf, &iwe, IW_EV_PARAM_LEN);
                        }
                        mask <<= 1;
                }
                /* Check if we added any event */
                if ((current_val - current_ev) > iwe_stream_lcp_len(info))
                        current_ev = current_val;
        }

        return current_ev;
}

static int
prism54_get_scan(struct net_device *ndev, struct iw_request_info *info,
                 struct iw_point *dwrq, char *extra)
{
        islpci_private *priv = netdev_priv(ndev);
        int i, rvalue;
        struct obj_bsslist *bsslist;
        u32 noise = 0;
        char *current_ev = extra;
        union oid_res_t r;

        if (islpci_get_state(priv) < PRV_STATE_INIT) {
                /* device is not ready, fail gently */
                dwrq->length = 0;
                return 0;
        }

        /* first get the noise value. We will use it to report the link quality */
        rvalue = mgt_get_request(priv, DOT11_OID_NOISEFLOOR, 0, NULL, &r);
        noise = r.u;

        /* Ask the device for a list of known bss.
        * The old API, using SIOCGIWAPLIST, had a hard limit of IW_MAX_AP=64.
        * The new API, using SIOCGIWSCAN, is only limited by the buffer size.
        * WE-14->WE-16, the buffer is limited to IW_SCAN_MAX_DATA bytes.
        * Starting with WE-17, the buffer can be as big as needed.
        * But the device won't repport anything if you change the value
        * of IWMAX_BSS=24. */

        rvalue |= mgt_get_request(priv, DOT11_OID_BSSLIST, 0, NULL, &r);
        bsslist = r.ptr;

        /* ok now, scan the list and translate its info */
        for (i = 0; i < (int) bsslist->nr; i++) {
                current_ev = prism54_translate_bss(ndev, info, current_ev,
                                                   extra + dwrq->length,
                                                   &(bsslist->bsslist[i]),
                                                   noise);

                /* Check if there is space for one more entry */
                if((extra + dwrq->length - current_ev) <= IW_EV_ADDR_LEN) {
                        /* Ask user space to try again with a bigger buffer */
                        rvalue = -E2BIG;
                        break;
                }
        }

        kfree(bsslist);
        dwrq->length = (current_ev - extra);
        dwrq->flags = 0;        /* todo */

        return rvalue;
}

static int
prism54_set_essid(struct net_device *ndev, struct iw_request_info *info,
                  struct iw_point *dwrq, char *extra)
{
        islpci_private *priv = netdev_priv(ndev);
        struct obj_ssid essid;

        memset(essid.octets, 0, 33);

        /* Check if we were asked for `any' */
        if (dwrq->flags && dwrq->length) {
                if (dwrq->length > 32)
                        return -E2BIG;
                essid.length = dwrq->length;
                memcpy(essid.octets, extra, dwrq->length);
        } else
                essid.length = 0;

        if (priv->iw_mode != IW_MODE_MONITOR)
                return mgt_set_request(priv, DOT11_OID_SSID, 0, &essid);

        /* If in monitor mode, just save to mib */
        mgt_set(priv, DOT11_OID_SSID, &essid);
        return 0;

}

static int
prism54_get_essid(struct net_device *ndev, struct iw_request_info *info,
                  struct iw_point *dwrq, char *extra)
{
        islpci_private *priv = netdev_priv(ndev);
        struct obj_ssid *essid;
        union oid_res_t r;
        int rvalue;

        rvalue = mgt_get_request(priv, DOT11_OID_SSID, 0, NULL, &r);
        essid = r.ptr;

        if (essid->length) {
                dwrq->flags = 1;        /* set ESSID to ON for Wireless Extensions */
                /* if it is too big, trunk it */
                dwrq->length = min((u8)IW_ESSID_MAX_SIZE, essid->length);
        } else {
                dwrq->flags = 0;
                dwrq->length = 0;
        }
        essid->octets[essid->length] = '\0';
        memcpy(extra, essid->octets, dwrq->length);
        kfree(essid);

        return rvalue;
}

/* Provides no functionality, just completes the ioctl. In essence this is a
 * just a cosmetic ioctl.
 */
static int
prism54_set_nick(struct net_device *ndev, struct iw_request_info *info,
                 struct iw_point *dwrq, char *extra)
{
        islpci_private *priv = netdev_priv(ndev);

        if (dwrq->length > IW_ESSID_MAX_SIZE)
                return -E2BIG;

        down_write(&priv->mib_sem);
        memset(priv->nickname, 0, sizeof (priv->nickname));
        memcpy(priv->nickname, extra, dwrq->length);
        up_write(&priv->mib_sem);

        return 0;
}

static int
prism54_get_nick(struct net_device *ndev, struct iw_request_info *info,
                 struct iw_point *dwrq, char *extra)
{
        islpci_private *priv = netdev_priv(ndev);

        dwrq->length = 0;

        down_read(&priv->mib_sem);
        dwrq->length = strlen(priv->nickname);
        memcpy(extra, priv->nickname, dwrq->length);
        up_read(&priv->mib_sem);

        return 0;
}

/* Set the allowed Bitrates */

static int
prism54_set_rate(struct net_device *ndev,
                 struct iw_request_info *info,
                 struct iw_param *vwrq, char *extra)
{

        islpci_private *priv = netdev_priv(ndev);
        u32 rate, profile;
        char *data;
        int ret, i;
        union oid_res_t r;

        if (vwrq->value == -1) {
                /* auto mode. No limit. */
                profile = 1;
                return mgt_set_request(priv, DOT11_OID_PROFILES, 0, &profile);
        }

        ret = mgt_get_request(priv, DOT11_OID_SUPPORTEDRATES, 0, NULL, &r);
        if (ret) {
                kfree(r.ptr);
                return ret;
        }

        rate = (u32) (vwrq->value / 500000);
        data = r.ptr;
        i = 0;

        while (data[i]) {
                if (rate && (data[i] == rate)) {
                        break;
                }
                if (vwrq->value == i) {
                        break;
                }
                data[i] |= 0x80;
                i++;
        }

        if (!data[i]) {
                kfree(r.ptr);
                return -EINVAL;
        }

        data[i] |= 0x80;
        data[i + 1] = 0;

        /* Now, check if we want a fixed or auto value */
        if (vwrq->fixed) {
                data[0] = data[i];
                data[1] = 0;
        }

/*
        i = 0;
        printk("prism54 rate: ");
        while(data[i]) {
                printk("%u ", data[i]);
                i++;
        }
        printk("0\n");
*/
        profile = -1;
        ret = mgt_set_request(priv, DOT11_OID_PROFILES, 0, &profile);
        ret |= mgt_set_request(priv, DOT11_OID_EXTENDEDRATES, 0, data);
        ret |= mgt_set_request(priv, DOT11_OID_RATES, 0, data);

        kfree(r.ptr);

        return ret;
}

/* Get the current bit rate */
static int
prism54_get_rate(struct net_device *ndev,
                 struct iw_request_info *info,
                 struct iw_param *vwrq, char *extra)
{
        islpci_private *priv = netdev_priv(ndev);
        int rvalue;
        char *data;
        union oid_res_t r;

        /* Get the current bit rate */
        if ((rvalue = mgt_get_request(priv, GEN_OID_LINKSTATE, 0, NULL, &r)))
                return rvalue;
        vwrq->value = r.u * 500000;

        /* request the device for the enabled rates */
        rvalue = mgt_get_request(priv, DOT11_OID_RATES, 0, NULL, &r);
        if (rvalue) {
                kfree(r.ptr);
                return rvalue;
        }
        data = r.ptr;
        vwrq->fixed = (data[0] != 0) && (data[1] == 0);
        kfree(r.ptr);

        return 0;
}

static int
prism54_set_rts(struct net_device *ndev, struct iw_request_info *info,
                struct iw_param *vwrq, char *extra)
{
        islpci_private *priv = netdev_priv(ndev);

        return mgt_set_request(priv, DOT11_OID_RTSTHRESH, 0, &vwrq->value);
}

static int
prism54_get_rts(struct net_device *ndev, struct iw_request_info *info,
                struct iw_param *vwrq, char *extra)
{
        islpci_private *priv = netdev_priv(ndev);
        union oid_res_t r;
        int rvalue;

        /* get the rts threshold */
        rvalue = mgt_get_request(priv, DOT11_OID_RTSTHRESH, 0, NULL, &r);
        vwrq->value = r.u;

        return rvalue;
}

static int
prism54_set_frag(struct net_device *ndev, struct iw_request_info *info,
                 struct iw_param *vwrq, char *extra)
{
        islpci_private *priv = netdev_priv(ndev);

        return mgt_set_request(priv, DOT11_OID_FRAGTHRESH, 0, &vwrq->value);
}

static int
prism54_get_frag(struct net_device *ndev, struct iw_request_info *info,
                 struct iw_param *vwrq, char *extra)
{
        islpci_private *priv = netdev_priv(ndev);
        union oid_res_t r;
        int rvalue;

        rvalue = mgt_get_request(priv, DOT11_OID_FRAGTHRESH, 0, NULL, &r);
        vwrq->value = r.u;

        return rvalue;
}

/* Here we have (min,max) = max retries for (small frames, big frames). Where
 * big frame <=>  bigger than the rts threshold
 * small frame <=>  smaller than the rts threshold
 * This is not really the behavior expected by the wireless tool but it seems
 * to be a common behavior in other drivers.
 */

static int
prism54_set_retry(struct net_device *ndev, struct iw_request_info *info,
                  struct iw_param *vwrq, char *extra)
{
        islpci_private *priv = netdev_priv(ndev);
        u32 slimit = 0, llimit = 0;     /* short and long limit */
        u32 lifetime = 0;
        int rvalue = 0;

        if (vwrq->disabled)
                /* we cannot disable this feature */
                return -EINVAL;

        if (vwrq->flags & IW_RETRY_LIMIT) {
                if (vwrq->flags & IW_RETRY_SHORT)
                        slimit = vwrq->value;
                else if (vwrq->flags & IW_RETRY_LONG)
                        llimit = vwrq->value;
                else {

                        /* we are asked to set both */
                        slimit = vwrq->value;
                        llimit = vwrq->value;
                }
        }
        if (vwrq->flags & IW_RETRY_LIFETIME)
                /* Wireless tools use us unit while the device uses 1024 us unit */
                lifetime = vwrq->value / 1024;

        /* now set what is requested */
        if (slimit)
                rvalue =
                    mgt_set_request(priv, DOT11_OID_SHORTRETRIES, 0, &slimit);
        if (llimit)
                rvalue |=
                    mgt_set_request(priv, DOT11_OID_LONGRETRIES, 0, &llimit);
        if (lifetime)
                rvalue |=
                    mgt_set_request(priv, DOT11_OID_MAXTXLIFETIME, 0,
                                    &lifetime);
        return rvalue;
}

static int
prism54_get_retry(struct net_device *ndev, struct iw_request_info *info,
                  struct iw_param *vwrq, char *extra)
{
        islpci_private *priv = netdev_priv(ndev);
        union oid_res_t r;
        int rvalue = 0;
        vwrq->disabled = 0;     /* It cannot be disabled */

        if ((vwrq->flags & IW_RETRY_TYPE) == IW_RETRY_LIFETIME) {
                /* we are asked for the life time */
                rvalue =
                    mgt_get_request(priv, DOT11_OID_MAXTXLIFETIME, 0, NULL, &r);
                vwrq->value = r.u * 1024;
                vwrq->flags = IW_RETRY_LIFETIME;
        } else if ((vwrq->flags & IW_RETRY_LONG)) {
                /* we are asked for the long retry limit */
                rvalue |=
                    mgt_get_request(priv, DOT11_OID_LONGRETRIES, 0, NULL, &r);
                vwrq->value = r.u;
                vwrq->flags = IW_RETRY_LIMIT | IW_RETRY_LONG;
        } else {
                /* default. get the  short retry limit */
                rvalue |=
                    mgt_get_request(priv, DOT11_OID_SHORTRETRIES, 0, NULL, &r);
                vwrq->value = r.u;
                vwrq->flags = IW_RETRY_LIMIT | IW_RETRY_SHORT;
        }

        return rvalue;
}

static int
prism54_set_encode(struct net_device *ndev, struct iw_request_info *info,
                   struct iw_point *dwrq, char *extra)
{
        islpci_private *priv = netdev_priv(ndev);
        int rvalue = 0, force = 0;
        int authen = DOT11_AUTH_OS, invoke = 0, exunencrypt = 0;
        union oid_res_t r;

        /* with the new API, it's impossible to get a NULL pointer.
         * New version of iwconfig set the IW_ENCODE_NOKEY flag
         * when no key is given, but older versions don't. */

        if (dwrq->length > 0) {
                /* we have a key to set */
                int index = (dwrq->flags & IW_ENCODE_INDEX) - 1;
                int current_index;
                struct obj_key key = { DOT11_PRIV_WEP, 0, "" };

                /* get the current key index */
                rvalue = mgt_get_request(priv, DOT11_OID_DEFKEYID, 0, NULL, &r);
                current_index = r.u;
                /* Verify that the key is not marked as invalid */
                if (!(dwrq->flags & IW_ENCODE_NOKEY)) {
                        if (dwrq->length > KEY_SIZE_TKIP) {
                                /* User-provided key data too big */
                                return -EINVAL;
                        }
                        if (dwrq->length > KEY_SIZE_WEP104) {
                                /* WPA-PSK TKIP */
                                key.type = DOT11_PRIV_TKIP;
                                key.length = KEY_SIZE_TKIP;
                        } else if (dwrq->length > KEY_SIZE_WEP40) {
                                /* WEP 104/128 */
                                key.length = KEY_SIZE_WEP104;
                        } else {
                                /* WEP 40/64 */
                                key.length = KEY_SIZE_WEP40;
                        }
                        memset(key.key, 0, sizeof (key.key));
                        memcpy(key.key, extra, dwrq->length);

                        if ((index < 0) || (index > 3))
                                /* no index provided use the current one */
                                index = current_index;

                        /* now send the key to the card  */
                        rvalue |=
                            mgt_set_request(priv, DOT11_OID_DEFKEYX, index,
                                            &key);
                }
                /*
                 * If a valid key is set, encryption should be enabled
                 * (user may turn it off later).
                 * This is also how "iwconfig ethX key on" works
                 */
                if ((index == current_index) && (key.length > 0))
                        force = 1;
        } else {
                int index = (dwrq->flags & IW_ENCODE_INDEX) - 1;
                if ((index >= 0) && (index <= 3)) {
                        /* we want to set the key index */
                        rvalue |=
                            mgt_set_request(priv, DOT11_OID_DEFKEYID, 0,
                                            &index);
                } else {
                        if (!(dwrq->flags & IW_ENCODE_MODE)) {
                                /* we cannot do anything. Complain. */
                                return -EINVAL;
                        }
                }
        }
        /* now read the flags */
        if (dwrq->flags & IW_ENCODE_DISABLED) {
                /* Encoding disabled,
                 * authen = DOT11_AUTH_OS;
                 * invoke = 0;
                 * exunencrypt = 0; */
        }
        if (dwrq->flags & IW_ENCODE_OPEN)
                /* Encode but accept non-encoded packets. No auth */
                invoke = 1;
        if ((dwrq->flags & IW_ENCODE_RESTRICTED) || force) {
                /* Refuse non-encoded packets. Auth */
                authen = DOT11_AUTH_BOTH;
                invoke = 1;
                exunencrypt = 1;
        }
        /* do the change if requested  */
        if ((dwrq->flags & IW_ENCODE_MODE) || force) {
                rvalue |=
                    mgt_set_request(priv, DOT11_OID_AUTHENABLE, 0, &authen);
                rvalue |=
                    mgt_set_request(priv, DOT11_OID_PRIVACYINVOKED, 0, &invoke);
                rvalue |=
                    mgt_set_request(priv, DOT11_OID_EXUNENCRYPTED, 0,
                                    &exunencrypt);
        }
        return rvalue;
}

static int
prism54_get_encode(struct net_device *ndev, struct iw_request_info *info,
                   struct iw_point *dwrq, char *extra)
{
        islpci_private *priv = netdev_priv(ndev);
        struct obj_key *key;
        u32 devindex, index = (dwrq->flags & IW_ENCODE_INDEX) - 1;
        u32 authen = 0, invoke = 0, exunencrypt = 0;
        int rvalue;
        union oid_res_t r;

        /* first get the flags */
        rvalue = mgt_get_request(priv, DOT11_OID_AUTHENABLE, 0, NULL, &r);
        authen = r.u;
        rvalue |= mgt_get_request(priv, DOT11_OID_PRIVACYINVOKED, 0, NULL, &r);
        invoke = r.u;
        rvalue |= mgt_get_request(priv, DOT11_OID_EXUNENCRYPTED, 0, NULL, &r);
        exunencrypt = r.u;

        if (invoke && (authen == DOT11_AUTH_BOTH) && exunencrypt)
                dwrq->flags = IW_ENCODE_RESTRICTED;
        else if ((authen == DOT11_AUTH_OS) && !exunencrypt) {
                if (invoke)
                        dwrq->flags = IW_ENCODE_OPEN;
                else
                        dwrq->flags = IW_ENCODE_DISABLED;
        } else
                /* The card should not work in this state */
                dwrq->flags = 0;

        /* get the current device key index */
        rvalue |= mgt_get_request(priv, DOT11_OID_DEFKEYID, 0, NULL, &r);
        devindex = r.u;
        /* Now get the key, return it */
        if (index == -1 || index > 3)
                /* no index provided, use the current one */
                index = devindex;
        rvalue |= mgt_get_request(priv, DOT11_OID_DEFKEYX, index, NULL, &r);
        key = r.ptr;
        dwrq->length = key->length;
        memcpy(extra, key->key, dwrq->length);
        kfree(key);
        /* return the used key index */
        dwrq->flags |= devindex + 1;

        return rvalue;
}

static int
prism54_get_txpower(struct net_device *ndev, struct iw_request_info *info,
                    struct iw_param *vwrq, char *extra)
{
        islpci_private *priv = netdev_priv(ndev);
        union oid_res_t r;
        int rvalue;

        rvalue = mgt_get_request(priv, OID_INL_OUTPUTPOWER, 0, NULL, &r);
        /* intersil firmware operates in 0.25 dBm (1/4 dBm) */
        vwrq->value = (s32) r.u / 4;
        vwrq->fixed = 1;
        /* radio is not turned of
         * btw: how is possible to turn off only the radio
         */
        vwrq->disabled = 0;

        return rvalue;
}

static int
prism54_set_txpower(struct net_device *ndev, struct iw_request_info *info,
                    struct iw_param *vwrq, char *extra)
{
        islpci_private *priv = netdev_priv(ndev);
        s32 u = vwrq->value;

        /* intersil firmware operates in 0.25 dBm (1/4) */
        u *= 4;
        if (vwrq->disabled) {
                /* don't know how to disable radio */
                printk(KERN_DEBUG
                       "%s: %s() disabling radio is not yet supported.\n",
                       priv->ndev->name, __func__);
                return -ENOTSUPP;
        } else if (vwrq->fixed)
                /* currently only fixed value is supported */
                return mgt_set_request(priv, OID_INL_OUTPUTPOWER, 0, &u);
        else {
                printk(KERN_DEBUG
                       "%s: %s() auto power will be implemented later.\n",
                       priv->ndev->name, __func__);
                return -ENOTSUPP;
        }
}

static int prism54_set_genie(struct net_device *ndev,
                             struct iw_request_info *info,
                             struct iw_point *data, char *extra)
{
        islpci_private *priv = netdev_priv(ndev);
        int alen, ret = 0;
        struct obj_attachment *attach;

        if (data->length > MAX_WPA_IE_LEN ||
            (data->length && extra == NULL))
                return -EINVAL;

        memcpy(priv->wpa_ie, extra, data->length);
        priv->wpa_ie_len = data->length;

        alen = sizeof(*attach) + priv->wpa_ie_len;
        attach = kzalloc(alen, GFP_KERNEL);
        if (attach == NULL)
                return -ENOMEM;

#define WLAN_FC_TYPE_MGMT 0
#define WLAN_FC_STYPE_ASSOC_REQ 0
#define WLAN_FC_STYPE_REASSOC_REQ 2

        /* Note: endianness is covered by mgt_set_varlen */
        attach->type = (WLAN_FC_TYPE_MGMT << 2) |
               (WLAN_FC_STYPE_ASSOC_REQ << 4);
        attach->id = -1;
        attach->size = priv->wpa_ie_len;
        memcpy(attach->data, extra, priv->wpa_ie_len);

        ret = mgt_set_varlen(priv, DOT11_OID_ATTACHMENT, attach,
                priv->wpa_ie_len);
        if (ret == 0) {
                attach->type = (WLAN_FC_TYPE_MGMT << 2) |
                        (WLAN_FC_STYPE_REASSOC_REQ << 4);

                ret = mgt_set_varlen(priv, DOT11_OID_ATTACHMENT, attach,
                        priv->wpa_ie_len);
                if (ret == 0)
                        printk(KERN_DEBUG "%s: WPA IE Attachment was set\n",
                                ndev->name);
        }

        kfree(attach);
        return ret;
}


static int prism54_get_genie(struct net_device *ndev,
                             struct iw_request_info *info,
                             struct iw_point *data, char *extra)
{
        islpci_private *priv = netdev_priv(ndev);
        int len = priv->wpa_ie_len;

        if (len <= 0) {
                data->length = 0;
                return 0;
        }

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

        data->length = len;
        memcpy(extra, priv->wpa_ie, len);

        return 0;
}

static int prism54_set_auth(struct net_device *ndev,
                               struct iw_request_info *info,
                               union iwreq_data *wrqu, char *extra)
{
        islpci_private *priv = netdev_priv(ndev);
        struct iw_param *param = &wrqu->param;
        u32 mlmelevel = 0, authen = 0, dot1x = 0;
        u32 exunencrypt = 0, privinvoked = 0, wpa = 0;
        u32 old_wpa;
        int ret = 0;
        union oid_res_t r;

        if (islpci_get_state(priv) < PRV_STATE_INIT)
                return 0;

        /* first get the flags */
        down_write(&priv->mib_sem);
        wpa = old_wpa = priv->wpa;
        up_write(&priv->mib_sem);
        ret = mgt_get_request(priv, DOT11_OID_AUTHENABLE, 0, NULL, &r);
        authen = r.u;
        ret = mgt_get_request(priv, DOT11_OID_PRIVACYINVOKED, 0, NULL, &r);
        privinvoked = r.u;
        ret = mgt_get_request(priv, DOT11_OID_EXUNENCRYPTED, 0, NULL, &r);
        exunencrypt = r.u;
        ret = mgt_get_request(priv, DOT11_OID_DOT1XENABLE, 0, NULL, &r);
        dot1x = r.u;
        ret = mgt_get_request(priv, DOT11_OID_MLMEAUTOLEVEL, 0, NULL, &r);
        mlmelevel = r.u;

        if (ret < 0)
                goto out;

        switch (param->flags & IW_AUTH_INDEX) {
        case IW_AUTH_CIPHER_PAIRWISE:
        case IW_AUTH_CIPHER_GROUP:
        case IW_AUTH_KEY_MGMT:
                break;

        case IW_AUTH_WPA_ENABLED:
                /* Do the same thing as IW_AUTH_WPA_VERSION */
                if (param->value) {
                        wpa = 1;
                        privinvoked = 1; /* For privacy invoked */
                        exunencrypt = 1; /* Filter out all unencrypted frames */
                        dot1x = 0x01; /* To enable eap filter */
                        mlmelevel = DOT11_MLME_EXTENDED;
                        authen = DOT11_AUTH_OS; /* Only WEP uses _SK and _BOTH */
                } else {
                        wpa = 0;
                        privinvoked = 0;
                        exunencrypt = 0; /* Do not filter un-encrypted data */
                        dot1x = 0;
                        mlmelevel = DOT11_MLME_AUTO;
                }
                break;

        case IW_AUTH_WPA_VERSION:
                if (param->value & IW_AUTH_WPA_VERSION_DISABLED) {
                        wpa = 0;
                        privinvoked = 0;
                        exunencrypt = 0; /* Do not filter un-encrypted data */
                        dot1x = 0;
                        mlmelevel = DOT11_MLME_AUTO;
                } else {
                        if (param->value & IW_AUTH_WPA_VERSION_WPA)
                                wpa = 1;
                        else if (param->value & IW_AUTH_WPA_VERSION_WPA2)
                                wpa = 2;
                        privinvoked = 1; /* For privacy invoked */
                        exunencrypt = 1; /* Filter out all unencrypted frames */
                        dot1x = 0x01; /* To enable eap filter */
                        mlmelevel = DOT11_MLME_EXTENDED;
                        authen = DOT11_AUTH_OS; /* Only WEP uses _SK and _BOTH */
                }
                break;

        case IW_AUTH_RX_UNENCRYPTED_EAPOL:
                /* dot1x should be the opposite of RX_UNENCRYPTED_EAPOL;
                 * turn off dot1x when allowing receipt of unencrypted EAPOL
                 * frames, turn on dot1x when receipt should be disallowed
                 */
                dot1x = param->value ? 0 : 0x01;
                break;

        case IW_AUTH_PRIVACY_INVOKED:
                privinvoked = param->value ? 1 : 0;
                break;

        case IW_AUTH_DROP_UNENCRYPTED:
                exunencrypt = param->value ? 1 : 0;
                break;

        case IW_AUTH_80211_AUTH_ALG:
                if (param->value & IW_AUTH_ALG_SHARED_KEY) {
                        /* Only WEP uses _SK and _BOTH */
                        if (wpa > 0) {
                                ret = -EINVAL;
                                goto out;
                        }
                        authen = DOT11_AUTH_SK;
                } else if (param->value & IW_AUTH_ALG_OPEN_SYSTEM) {
                        authen = DOT11_AUTH_OS;
                } else {
                        ret = -EINVAL;
                        goto out;
                }
                break;

        default:
                return -EOPNOTSUPP;
        }

        /* Set all the values */
        down_write(&priv->mib_sem);
        priv->wpa = wpa;
        up_write(&priv->mib_sem);
        mgt_set_request(priv, DOT11_OID_AUTHENABLE, 0, &authen);
        mgt_set_request(priv, DOT11_OID_PRIVACYINVOKED, 0, &privinvoked);
        mgt_set_request(priv, DOT11_OID_EXUNENCRYPTED, 0, &exunencrypt);
        mgt_set_request(priv, DOT11_OID_DOT1XENABLE, 0, &dot1x);
        mgt_set_request(priv, DOT11_OID_MLMEAUTOLEVEL, 0, &mlmelevel);

out:
        return ret;
}

static int prism54_get_auth(struct net_device *ndev,
                            struct iw_request_info *info,
                            union iwreq_data *wrqu, char *extra)
{
        islpci_private *priv = netdev_priv(ndev);
        struct iw_param *param = &wrqu->param;
        u32 wpa = 0;
        int ret = 0;
        union oid_res_t r;

        if (islpci_get_state(priv) < PRV_STATE_INIT)
                return 0;

        /* first get the flags */
        down_write(&priv->mib_sem);
        wpa = priv->wpa;
        up_write(&priv->mib_sem);

        switch (param->flags & IW_AUTH_INDEX) {
        case IW_AUTH_CIPHER_PAIRWISE:
        case IW_AUTH_CIPHER_GROUP:
        case IW_AUTH_KEY_MGMT:
                /*
                 * wpa_supplicant will control these internally
                 */
                ret = -EOPNOTSUPP;
                break;

        case IW_AUTH_WPA_VERSION:
                switch (wpa) {
                case 1:
                        param->value = IW_AUTH_WPA_VERSION_WPA;
                        break;
                case 2:
                        param->value = IW_AUTH_WPA_VERSION_WPA2;
                        break;
                case 0:
                default:
                        param->value = IW_AUTH_WPA_VERSION_DISABLED;
                        break;
                }
                break;

        case IW_AUTH_DROP_UNENCRYPTED:
                ret = mgt_get_request(priv, DOT11_OID_EXUNENCRYPTED, 0, NULL, &r);
                if (ret >= 0)
                        param->value = r.u > 0 ? 1 : 0;
                break;

        case IW_AUTH_80211_AUTH_ALG:
                ret = mgt_get_request(priv, DOT11_OID_AUTHENABLE, 0, NULL, &r);
                if (ret >= 0) {
                        switch (r.u) {
                        case DOT11_AUTH_OS:
                                param->value = IW_AUTH_ALG_OPEN_SYSTEM;
                                break;
                        case DOT11_AUTH_BOTH:
                        case DOT11_AUTH_SK:
                                param->value = IW_AUTH_ALG_SHARED_KEY;
                        case DOT11_AUTH_NONE:
                        default:
                                param->value = 0;
                                break;
                        }
                }
                break;

        case IW_AUTH_WPA_ENABLED:
                param->value = wpa > 0 ? 1 : 0;
                break;

        case IW_AUTH_RX_UNENCRYPTED_EAPOL:
                ret = mgt_get_request(priv, DOT11_OID_DOT1XENABLE, 0, NULL, &r);
                if (ret >= 0)
                        param->value = r.u > 0 ? 1 : 0;
                break;

        case IW_AUTH_PRIVACY_INVOKED:
                ret = mgt_get_request(priv, DOT11_OID_PRIVACYINVOKED, 0, NULL, &r);
                if (ret >= 0)
                        param->value = r.u > 0 ? 1 : 0;
                break;

        default:
                return -EOPNOTSUPP;
        }
        return ret;
}

static int prism54_set_encodeext(struct net_device *ndev,
                                 struct iw_request_info *info,
                                 union iwreq_data *wrqu,
                                 char *extra)
{
        islpci_private *priv = netdev_priv(ndev);
        struct iw_point *encoding = &wrqu->encoding;
        struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
        int idx, alg = ext->alg, set_key = 1;
        union oid_res_t r;
        int authen = DOT11_AUTH_OS, invoke = 0, exunencrypt = 0;
        int ret = 0;

        if (islpci_get_state(priv) < PRV_STATE_INIT)
                return 0;

        /* Determine and validate the key index */
        idx = (encoding->flags & IW_ENCODE_INDEX) - 1;
        if (idx) {
                if (idx < 0 || idx > 3)
                        return -EINVAL;
        } else {
                ret = mgt_get_request(priv, DOT11_OID_DEFKEYID, 0, NULL, &r);
                if (ret < 0)
                        goto out;
                idx = r.u;
        }

        if (encoding->flags & IW_ENCODE_DISABLED)
                alg = IW_ENCODE_ALG_NONE;

        if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY) {
                /* Only set transmit key index here, actual
                 * key is set below if needed.
                 */
                ret = mgt_set_request(priv, DOT11_OID_DEFKEYID, 0, &idx);
                set_key = ext->key_len > 0 ? 1 : 0;
        }

        if (set_key) {
                struct obj_key key = { DOT11_PRIV_WEP, 0, "" };
                switch (alg) {
                case IW_ENCODE_ALG_NONE:
                        break;
                case IW_ENCODE_ALG_WEP:
                        if (ext->key_len > KEY_SIZE_WEP104) {
                                ret = -EINVAL;
                                goto out;
                        }
                        if (ext->key_len > KEY_SIZE_WEP40)
                                key.length = KEY_SIZE_WEP104;
                        else
                                key.length = KEY_SIZE_WEP40;
                        break;
                case IW_ENCODE_ALG_TKIP:
                        if (ext->key_len > KEY_SIZE_TKIP) {
                                ret = -EINVAL;
                                goto out;
                        }
                        key.type = DOT11_PRIV_TKIP;
                        key.length = KEY_SIZE_TKIP;
                        break;
                default:
                        return -EINVAL;
                }

                if (key.length) {
                        memset(key.key, 0, sizeof(key.key));
                        memcpy(key.key, ext->key, ext->key_len);
                        ret = mgt_set_request(priv, DOT11_OID_DEFKEYX, idx,
                                            &key);
                        if (ret < 0)
                                goto out;
                }
        }

        /* Read the flags */
        if (encoding->flags & IW_ENCODE_DISABLED) {
                /* Encoding disabled,
                 * authen = DOT11_AUTH_OS;
                 * invoke = 0;
                 * exunencrypt = 0; */
        }
        if (encoding->flags & IW_ENCODE_OPEN) {
                /* Encode but accept non-encoded packets. No auth */
                invoke = 1;
        }
        if (encoding->flags & IW_ENCODE_RESTRICTED) {
                /* Refuse non-encoded packets. Auth */
                authen = DOT11_AUTH_BOTH;
                invoke = 1;
                exunencrypt = 1;
        }

        /* do the change if requested  */
        if (encoding->flags & IW_ENCODE_MODE) {
                ret = mgt_set_request(priv, DOT11_OID_AUTHENABLE, 0,
                                      &authen);
                ret = mgt_set_request(priv, DOT11_OID_PRIVACYINVOKED, 0,
                                      &invoke);
                ret = mgt_set_request(priv, DOT11_OID_EXUNENCRYPTED, 0,
                                      &exunencrypt);
        }

out:
        return ret;
}


static int prism54_get_encodeext(struct net_device *ndev,
                                 struct iw_request_info *info,
                                 union iwreq_data *wrqu,
                                 char *extra)
{
        islpci_private *priv = netdev_priv(ndev);
        struct iw_point *encoding = &wrqu->encoding;
        struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
        int idx, max_key_len;
        union oid_res_t r;
        int authen = DOT11_AUTH_OS, invoke = 0, exunencrypt = 0, wpa = 0;
        int ret = 0;

        if (islpci_get_state(priv) < PRV_STATE_INIT)
                return 0;

        /* first get the flags */
        ret = mgt_get_request(priv, DOT11_OID_AUTHENABLE, 0, NULL, &r);
        authen = r.u;
        ret = mgt_get_request(priv, DOT11_OID_PRIVACYINVOKED, 0, NULL, &r);
        invoke = r.u;
        ret = mgt_get_request(priv, DOT11_OID_EXUNENCRYPTED, 0, NULL, &r);
        exunencrypt = r.u;
        if (ret < 0)
                goto out;

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

        idx = (encoding->flags & IW_ENCODE_INDEX) - 1;
        if (idx) {
                if (idx < 0 || idx > 3)
                        return -EINVAL;
        } else {
                ret = mgt_get_request(priv, DOT11_OID_DEFKEYID, 0, NULL, &r);
                if (ret < 0)
                        goto out;
                idx = r.u;
        }

        encoding->flags = idx + 1;
        memset(ext, 0, sizeof(*ext));

        switch (authen) {
        case DOT11_AUTH_BOTH:
        case DOT11_AUTH_SK:
                wrqu->encoding.flags |= IW_ENCODE_RESTRICTED;
        case DOT11_AUTH_OS:
        default:
                wrqu->encoding.flags |= IW_ENCODE_OPEN;
                break;
        }

        down_write(&priv->mib_sem);
        wpa = priv->wpa;
        up_write(&priv->mib_sem);

        if (authen == DOT11_AUTH_OS && !exunencrypt && !invoke && !wpa) {
                /* No encryption */
                ext->alg = IW_ENCODE_ALG_NONE;
                ext->key_len = 0;
                wrqu->encoding.flags |= IW_ENCODE_DISABLED;
        } else {
                struct obj_key *key;

                ret = mgt_get_request(priv, DOT11_OID_DEFKEYX, idx, NULL, &r);
                if (ret < 0)
                        goto out;
                key = r.ptr;
                if (max_key_len < key->length) {
                        ret = -E2BIG;
                        goto out;
                }
                memcpy(ext->key, key->key, key->length);
                ext->key_len = key->length;

                switch (key->type) {
                case DOT11_PRIV_TKIP:
                        ext->alg = IW_ENCODE_ALG_TKIP;
                        break;
                default:
                case DOT11_PRIV_WEP:
                        ext->alg = IW_ENCODE_ALG_WEP;
                        break;
                }
                wrqu->encoding.flags |= IW_ENCODE_ENABLED;
        }

out:
        return ret;
}


static int
prism54_reset(struct net_device *ndev, struct iw_request_info *info,
              __u32 * uwrq, char *extra)
{
        islpci_reset(netdev_priv(ndev), 0);

        return 0;
}

static int
prism54_get_oid(struct net_device *ndev, struct iw_request_info *info,
                struct iw_point *dwrq, char *extra)
{
        union oid_res_t r;
        int rvalue;
        enum oid_num_t n = dwrq->flags;

        rvalue = mgt_get_request(netdev_priv(ndev), n, 0, NULL, &r);
        dwrq->length = mgt_response_to_str(n, &r, extra);
        if ((isl_oid[n].flags & OID_FLAG_TYPE) != OID_TYPE_U32)
                kfree(r.ptr);
        return rvalue;
}

static int
prism54_set_u32(struct net_device *ndev, struct iw_request_info *info,
                __u32 * uwrq, char *extra)
{
        u32 oid = uwrq[0], u = uwrq[1];

        return mgt_set_request(netdev_priv(ndev), oid, 0, &u);
}

static int
prism54_set_raw(struct net_device *ndev, struct iw_request_info *info,
                struct iw_point *dwrq, char *extra)
{
        u32 oid = dwrq->flags;

        return mgt_set_request(netdev_priv(ndev), oid, 0, extra);
}

void
prism54_acl_init(struct islpci_acl *acl)
{
        mutex_init(&acl->lock);
        INIT_LIST_HEAD(&acl->mac_list);
        acl->size = 0;
        acl->policy = MAC_POLICY_OPEN;
}

static void
prism54_clear_mac(struct islpci_acl *acl)
{
        struct list_head *ptr, *next;
        struct mac_entry *entry;

        mutex_lock(&acl->lock);

        if (acl->size == 0) {
                mutex_unlock(&acl->lock);
                return;
        }

        for (ptr = acl->mac_list.next, next = ptr->next;
             ptr != &acl->mac_list; ptr = next, next = ptr->next) {
                entry = list_entry(ptr, struct mac_entry, _list);
                list_del(ptr);
                kfree(entry);
        }
        acl->size = 0;
        mutex_unlock(&acl->lock);
}

void
prism54_acl_clean(struct islpci_acl *acl)
{
        prism54_clear_mac(acl);
}

static int
prism54_add_mac(struct net_device *ndev, struct iw_request_info *info,
                struct sockaddr *awrq, char *extra)
{
        islpci_private *priv = netdev_priv(ndev);
        struct islpci_acl *acl = &priv->acl;
        struct mac_entry *entry;
        struct sockaddr *addr = (struct sockaddr *) extra;

        if (addr->sa_family != ARPHRD_ETHER)
                return -EOPNOTSUPP;

        entry = kmalloc(sizeof (struct mac_entry), GFP_KERNEL);
        if (entry == NULL)
                return -ENOMEM;

        memcpy(entry->addr, addr->sa_data, ETH_ALEN);

        if (mutex_lock_interruptible(&acl->lock)) {
                kfree(entry);
                return -ERESTARTSYS;
        }
        list_add_tail(&entry->_list, &acl->mac_list);
        acl->size++;
        mutex_unlock(&acl->lock);

        return 0;
}

static int
prism54_del_mac(struct net_device *ndev, struct iw_request_info *info,
                struct sockaddr *awrq, char *extra)
{
        islpci_private *priv = netdev_priv(ndev);
        struct islpci_acl *acl = &priv->acl;
        struct mac_entry *entry;
        struct sockaddr *addr = (struct sockaddr *) extra;

        if (addr->sa_family != ARPHRD_ETHER)
                return -EOPNOTSUPP;

        if (mutex_lock_interruptible(&acl->lock))
                return -ERESTARTSYS;
        list_for_each_entry(entry, &acl->mac_list, _list) {
                if (memcmp(entry->addr, addr->sa_data, ETH_ALEN) == 0) {
                        list_del(&entry->_list);
                        acl->size--;
                        kfree(entry);
                        mutex_unlock(&acl->lock);
                        return 0;
                }
        }
        mutex_unlock(&acl->lock);
        return -EINVAL;
}

static int
prism54_get_mac(struct net_device *ndev, struct iw_request_info *info,
                struct iw_point *dwrq, char *extra)
{
        islpci_private *priv = netdev_priv(ndev);
        struct islpci_acl *acl = &priv->acl;
        struct mac_entry *entry;
        struct sockaddr *dst = (struct sockaddr *) extra;

        dwrq->length = 0;

        if (mutex_lock_interruptible(&acl->lock))
                return -ERESTARTSYS;

        list_for_each_entry(entry, &acl->mac_list, _list) {
                memcpy(dst->sa_data, entry->addr, ETH_ALEN);
                dst->sa_family = ARPHRD_ETHER;
                dwrq->length++;
                dst++;
        }
        mutex_unlock(&acl->lock);
        return 0;
}

/* Setting policy also clears the MAC acl, even if we don't change the defaut
 * policy
 */

static int
prism54_set_policy(struct net_device *ndev, struct iw_request_info *info,
                   __u32 * uwrq, char *extra)
{
        islpci_private *priv = netdev_priv(ndev);
        struct islpci_acl *acl = &priv->acl;
        u32 mlmeautolevel;

        prism54_clear_mac(acl);

        if ((*uwrq < MAC_POLICY_OPEN) || (*uwrq > MAC_POLICY_REJECT))
                return -EINVAL;

        down_write(&priv->mib_sem);

        acl->policy = *uwrq;

        /* the ACL code needs an intermediate mlmeautolevel */
        if ((priv->iw_mode == IW_MODE_MASTER) &&
            (acl->policy != MAC_POLICY_OPEN))
                mlmeautolevel = DOT11_MLME_INTERMEDIATE;
        else
                mlmeautolevel = CARD_DEFAULT_MLME_MODE;
        if (priv->wpa)
                mlmeautolevel = DOT11_MLME_EXTENDED;
        mgt_set(priv, DOT11_OID_MLMEAUTOLEVEL, &mlmeautolevel);
        /* restart the card with our new policy */
        if (mgt_commit(priv)) {
                up_write(&priv->mib_sem);
                return -EIO;
        }
        up_write(&priv->mib_sem);

        return 0;
}

static int
prism54_get_policy(struct net_device *ndev, struct iw_request_info *info,
                   __u32 * uwrq, char *extra)
{
        islpci_private *priv = netdev_priv(ndev);
        struct islpci_acl *acl = &priv->acl;

        *uwrq = acl->policy;

        return 0;
}

/* Return 1 only if client should be accepted. */

static int
prism54_mac_accept(struct islpci_acl *acl, char *mac)
{
        struct mac_entry *entry;
        int res = 0;

        if (mutex_lock_interruptible(&acl->lock))
                return -ERESTARTSYS;

        if (acl->policy == MAC_POLICY_OPEN) {
                mutex_unlock(&acl->lock);
                return 1;
        }

        list_for_each_entry(entry, &acl->mac_list, _list) {
                if (memcmp(entry->addr, mac, ETH_ALEN) == 0) {
                        res = 1;
                        break;
                }
        }
        res = (acl->policy == MAC_POLICY_ACCEPT) ? !res : res;
        mutex_unlock(&acl->lock);

        return res;
}

static int
prism54_kick_all(struct net_device *ndev, struct iw_request_info *info,
                 struct iw_point *dwrq, char *extra)
{
        struct obj_mlme *mlme;
        int rvalue;

        mlme = kmalloc(sizeof (struct obj_mlme), GFP_KERNEL);
        if (mlme == NULL)
                return -ENOMEM;

        /* Tell the card to kick every client */
        mlme->id = 0;
        rvalue =
            mgt_set_request(netdev_priv(ndev), DOT11_OID_DISASSOCIATE, 0, mlme);
        kfree(mlme);

        return rvalue;
}

static int

prism54_kick_mac(struct net_device *ndev, struct iw_request_info *info,
                 struct sockaddr *awrq, char *extra)
{
        struct obj_mlme *mlme;
        struct sockaddr *addr = (struct sockaddr *) extra;
        int rvalue;

        if (addr->sa_family != ARPHRD_ETHER)
                return -EOPNOTSUPP;

        mlme = kmalloc(sizeof (struct obj_mlme), GFP_KERNEL);
        if (mlme == NULL)
                return -ENOMEM;

        /* Tell the card to only kick the corresponding bastard */
        memcpy(mlme->address, addr->sa_data, ETH_ALEN);
        mlme->id = -1;
        rvalue =
            mgt_set_request(netdev_priv(ndev), DOT11_OID_DISASSOCIATE, 0, mlme);

        kfree(mlme);

        return rvalue;
}

/* Translate a TRAP oid into a wireless event. Called in islpci_mgt_receive. */

static void
format_event(islpci_private *priv, char *dest, const char *str,
             const struct obj_mlme *mlme, u16 *length, int error)
{
        int n = snprintf(dest, IW_CUSTOM_MAX,
                         "%s %s %pM %s (%2.2X)",
                         str,
                         ((priv->iw_mode == IW_MODE_MASTER) ? "from" : "to"),
                         mlme->address,
                         (error ? (mlme->code ? " : REJECTED " : " : ACCEPTED ")
                          : ""), mlme->code);
        BUG_ON(n > IW_CUSTOM_MAX);
        *length = n;
}

static void
send_formatted_event(islpci_private *priv, const char *str,
                     const struct obj_mlme *mlme, int error)
{
        union iwreq_data wrqu;
        char *memptr;

        memptr = kmalloc(IW_CUSTOM_MAX, GFP_KERNEL);
        if (!memptr)
                return;
        wrqu.data.pointer = memptr;
        wrqu.data.length = 0;
        format_event(priv, memptr, str, mlme, &wrqu.data.length,
                     error);
        wireless_send_event(priv->ndev, IWEVCUSTOM, &wrqu, memptr);
        kfree(memptr);
}

static void
send_simple_event(islpci_private *priv, const char *str)
{
        union iwreq_data wrqu;
        char *memptr;
        int n = strlen(str);

        memptr = kmalloc(IW_CUSTOM_MAX, GFP_KERNEL);
        if (!memptr)
                return;
        BUG_ON(n > IW_CUSTOM_MAX);
        wrqu.data.pointer = memptr;
        wrqu.data.length = n;
        strcpy(memptr, str);
        wireless_send_event(priv->ndev, IWEVCUSTOM, &wrqu, memptr);
        kfree(memptr);
}

static void
link_changed(struct net_device *ndev, u32 bitrate)
{
        islpci_private *priv = netdev_priv(ndev);

        if (bitrate) {
                netif_carrier_on(ndev);
                if (priv->iw_mode == IW_MODE_INFRA) {
                        union iwreq_data uwrq;
                        prism54_get_wap(ndev, NULL, (struct sockaddr *) &uwrq,
                                        NULL);
                        wireless_send_event(ndev, SIOCGIWAP, &uwrq, NULL);
                } else
                        send_simple_event(netdev_priv(ndev),
                                          "Link established");
        } else {
                netif_carrier_off(ndev);
                send_simple_event(netdev_priv(ndev), "Link lost");
        }
}

/* Beacon/ProbeResp payload header */
struct ieee80211_beacon_phdr {
        u8 timestamp[8];
        u16 beacon_int;
        u16 capab_info;
} __attribute__ ((packed));

#define WLAN_EID_GENERIC 0xdd
static u8 wpa_oid[4] = { 0x00, 0x50, 0xf2, 1 };

static void
prism54_wpa_bss_ie_add(islpci_private *priv, u8 *bssid,
                       u8 *wpa_ie, size_t wpa_ie_len)
{
        struct list_head *ptr;
        struct islpci_bss_wpa_ie *bss = NULL;

        if (wpa_ie_len > MAX_WPA_IE_LEN)
                wpa_ie_len = MAX_WPA_IE_LEN;

        mutex_lock(&priv->wpa_lock);

        /* try to use existing entry */
        list_for_each(ptr, &priv->bss_wpa_list) {
                bss = list_entry(ptr, struct islpci_bss_wpa_ie, list);
                if (memcmp(bss->bssid, bssid, ETH_ALEN) == 0) {
                        list_move(&bss->list, &priv->bss_wpa_list);
                        break;
                }
                bss = NULL;
        }

        if (bss == NULL) {
                /* add a new BSS entry; if max number of entries is already
                 * reached, replace the least recently updated */
                if (priv->num_bss_wpa >= MAX_BSS_WPA_IE_COUNT) {
                        bss = list_entry(priv->bss_wpa_list.prev,
                                         struct islpci_bss_wpa_ie, list);
                        list_del(&bss->list);
                } else {
                        bss = kzalloc(sizeof (*bss), GFP_ATOMIC);
                        if (bss != NULL)
                                priv->num_bss_wpa++;
                }
                if (bss != NULL) {
                        memcpy(bss->bssid, bssid, ETH_ALEN);
                        list_add(&bss->list, &priv->bss_wpa_list);
                }
        }

        if (bss != NULL) {
                memcpy(bss->wpa_ie, wpa_ie, wpa_ie_len);
                bss->wpa_ie_len = wpa_ie_len;
                bss->last_update = jiffies;
        } else {
                printk(KERN_DEBUG "Failed to add BSS WPA entry for "
                       "%pM\n", bssid);
        }

        /* expire old entries from WPA list */
        while (priv->num_bss_wpa > 0) {
                bss = list_entry(priv->bss_wpa_list.prev,
                                 struct islpci_bss_wpa_ie, list);
                if (!time_after(jiffies, bss->last_update + 60 * HZ))
                        break;

                list_del(&bss->list);
                priv->num_bss_wpa--;
                kfree(bss);
        }

        mutex_unlock(&priv->wpa_lock);
}

static size_t
prism54_wpa_bss_ie_get(islpci_private *priv, u8 *bssid, u8 *wpa_ie)
{
        struct list_head *ptr;
        struct islpci_bss_wpa_ie *bss = NULL;
        size_t len = 0;

        mutex_lock(&priv->wpa_lock);

        list_for_each(ptr, &priv->bss_wpa_list) {
                bss = list_entry(ptr, struct islpci_bss_wpa_ie, list);
                if (memcmp(bss->bssid, bssid, ETH_ALEN) == 0)
                        break;
                bss = NULL;
        }
        if (bss) {
                len = bss->wpa_ie_len;
                memcpy(wpa_ie, bss->wpa_ie, len);
        }
        mutex_unlock(&priv->wpa_lock);

        return len;
}

void
prism54_wpa_bss_ie_init(islpci_private *priv)
{
        INIT_LIST_HEAD(&priv->bss_wpa_list);
        mutex_init(&priv->wpa_lock);
}

void
prism54_wpa_bss_ie_clean(islpci_private *priv)
{
        struct islpci_bss_wpa_ie *bss, *n;

        list_for_each_entry_safe(bss, n, &priv->bss_wpa_list, list) {
                kfree(bss);
        }
}

static void
prism54_process_bss_data(islpci_private *priv, u32 oid, u8 *addr,
                         u8 *payload, size_t len)
{
        struct ieee80211_beacon_phdr *hdr;
        u8 *pos, *end;

        if (!priv->wpa)
                return;

        hdr = (struct ieee80211_beacon_phdr *) payload;
        pos = (u8 *) (hdr + 1);
        end = payload + len;
        while (pos < end) {
                if (pos + 2 + pos[1] > end) {
                        printk(KERN_DEBUG "Parsing Beacon/ProbeResp failed "
                               "for %pM\n", addr);
                        return;
                }
                if (pos[0] == WLAN_EID_GENERIC && pos[1] >= 4 &&
                    memcmp(pos + 2, wpa_oid, 4) == 0) {
                        prism54_wpa_bss_ie_add(priv, addr, pos, pos[1] + 2);
                        return;
                }
                pos += 2 + pos[1];
        }
}

static void
handle_request(islpci_private *priv, struct obj_mlme *mlme, enum oid_num_t oid)
{
        if (((mlme->state == DOT11_STATE_AUTHING) ||
             (mlme->state == DOT11_STATE_ASSOCING))
            && mgt_mlme_answer(priv)) {
                /* Someone is requesting auth and we must respond. Just send back
                 * the trap with error code set accordingly.
                 */
                mlme->code = prism54_mac_accept(&priv->acl,
                                                mlme->address) ? 0 : 1;
                mgt_set_request(priv, oid, 0, mlme);
        }
}

static int
prism54_process_trap_helper(islpci_private *priv, enum oid_num_t oid,
                            char *data)
{
        struct obj_mlme *mlme = (struct obj_mlme *) data;
        struct obj_mlmeex *mlmeex = (struct obj_mlmeex *) data;
        struct obj_mlmeex *confirm;
        u8 wpa_ie[MAX_WPA_IE_LEN];
        int wpa_ie_len;
        size_t len = 0; /* u16, better? */
        u8 *payload = NULL, *pos = NULL;
        int ret;

        /* I think all trapable objects are listed here.
         * Some oids have a EX version. The difference is that they are emitted
         * in DOT11_MLME_EXTENDED mode (set with DOT11_OID_MLMEAUTOLEVEL)
         * with more info.
         * The few events already defined by the wireless tools are not really
         * suited. We use the more flexible custom event facility.
         */

        if (oid >= DOT11_OID_BEACON) {
                len = mlmeex->size;
                payload = pos = mlmeex->data;
        }

        /* I fear prism54_process_bss_data won't work with big endian data */
        if ((oid == DOT11_OID_BEACON) || (oid == DOT11_OID_PROBE))
                prism54_process_bss_data(priv, oid, mlmeex->address,
                                         payload, len);

        mgt_le_to_cpu(isl_oid[oid].flags & OID_FLAG_TYPE, (void *) mlme);

        switch (oid) {

        case GEN_OID_LINKSTATE:
                link_changed(priv->ndev, (u32) *data);
                break;

        case DOT11_OID_MICFAILURE:
                send_simple_event(priv, "Mic failure");
                break;

        case DOT11_OID_DEAUTHENTICATE:
                send_formatted_event(priv, "DeAuthenticate request", mlme, 0);
                break;

        case DOT11_OID_AUTHENTICATE:
                handle_request(priv, mlme, oid);
                send_formatted_event(priv, "Authenticate request", mlme, 1);
                break;

        case DOT11_OID_DISASSOCIATE:
                send_formatted_event(priv, "Disassociate request", mlme, 0);
                break;

        case DOT11_OID_ASSOCIATE:
                handle_request(priv, mlme, oid);
                send_formatted_event(priv, "Associate request", mlme, 1);
                break;

        case DOT11_OID_REASSOCIATE:
                handle_request(priv, mlme, oid);
                send_formatted_event(priv, "ReAssociate request", mlme, 1);
                break;

        case DOT11_OID_BEACON:
                send_formatted_event(priv,
                                     "Received a beacon from an unkown AP",
                                     mlme, 0);
                break;

        case DOT11_OID_PROBE:
                /* we received a probe from a client. */
                send_formatted_event(priv, "Received a probe from client", mlme,
                                     0);
                break;

                /* Note : "mlme" is actually a "struct obj_mlmeex *" here, but this
                 * is backward compatible layout-wise with "struct obj_mlme".
                 */

        case DOT11_OID_DEAUTHENTICATEEX:
                send_formatted_event(priv, "DeAuthenticate request", mlme, 0);
                break;

        case DOT11_OID_AUTHENTICATEEX:
                handle_request(priv, mlme, oid);
                send_formatted_event(priv, "Authenticate request (ex)", mlme, 1);

                if (priv->iw_mode != IW_MODE_MASTER
                                && mlmeex->state != DOT11_STATE_AUTHING)
                        break;

                confirm = kmalloc(sizeof(struct obj_mlmeex) + 6, GFP_ATOMIC);

                if (!confirm)
                        break;

                memcpy(&confirm->address, mlmeex->address, ETH_ALEN);
                printk(KERN_DEBUG "Authenticate from: address:\t%pM\n",
                       mlmeex->address);
                confirm->id = -1; /* or mlmeex->id ? */
                confirm->state = 0; /* not used */
                confirm->code = 0;
                confirm->size = 6;
                confirm->data[0] = 0x00;
                confirm->data[1] = 0x00;
                confirm->data[2] = 0x02;
                confirm->data[3] = 0x00;
                confirm->data[4] = 0x00;
                confirm->data[5] = 0x00;

                ret = mgt_set_varlen(priv, DOT11_OID_ASSOCIATEEX, confirm, 6);

                kfree(confirm);
                if (ret)
                        return ret;
                break;

        case DOT11_OID_DISASSOCIATEEX:
                send_formatted_event(priv, "Disassociate request (ex)", mlme, 0);
                break;

        case DOT11_OID_ASSOCIATEEX:
                handle_request(priv, mlme, oid);
                send_formatted_event(priv, "Associate request (ex)", mlme, 1);

                if (priv->iw_mode != IW_MODE_MASTER
                                && mlmeex->state != DOT11_STATE_ASSOCING)
                        break;

                confirm = kmalloc(sizeof(struct obj_mlmeex), GFP_ATOMIC);

                if (!confirm)
                        break;

                memcpy(&confirm->address, mlmeex->address, ETH_ALEN);

                confirm->id = ((struct obj_mlmeex *)mlme)->id;
                confirm->state = 0; /* not used */
                confirm->code = 0;

                wpa_ie_len = prism54_wpa_bss_ie_get(priv, mlmeex->address, wpa_ie);

                if (!wpa_ie_len) {
                        printk(KERN_DEBUG "No WPA IE found from address:\t%pM\n",
                               mlmeex->address);
                        kfree(confirm);
                        break;
                }

                confirm->size = wpa_ie_len;
                memcpy(&confirm->data, wpa_ie, wpa_ie_len);

                mgt_set_varlen(priv, oid, confirm, wpa_ie_len);

                kfree(confirm);

                break;

        case DOT11_OID_REASSOCIATEEX:
                handle_request(priv, mlme, oid);
                send_formatted_event(priv, "Reassociate request (ex)", mlme, 1);

                if (priv->iw_mode != IW_MODE_MASTER
                                && mlmeex->state != DOT11_STATE_ASSOCING)
                        break;

                confirm = kmalloc(sizeof(struct obj_mlmeex), GFP_ATOMIC);

                if (!confirm)
                        break;

                memcpy(&confirm->address, mlmeex->address, ETH_ALEN);

                confirm->id = mlmeex->id;
                confirm->state = 0; /* not used */
                confirm->code = 0;

                wpa_ie_len = prism54_wpa_bss_ie_get(priv, mlmeex->address, wpa_ie);

                if (!wpa_ie_len) {
                        printk(KERN_DEBUG "No WPA IE found from address:\t%pM\n",
                               mlmeex->address);
                        kfree(confirm);
                        break;
                }

                confirm->size = wpa_ie_len;
                memcpy(&confirm->data, wpa_ie, wpa_ie_len);

                mgt_set_varlen(priv, oid, confirm, wpa_ie_len);

                kfree(confirm);

                break;

        default:
                return -EINVAL;
        }

        return 0;
}

/*
 * Process a device trap.  This is called via schedule_work(), outside of
 * interrupt context, no locks held.
 */
void
prism54_process_trap(struct work_struct *work)
{
        struct islpci_mgmtframe *frame =
                container_of(work, struct islpci_mgmtframe, ws);
        struct net_device *ndev = frame->ndev;
        enum oid_num_t n = mgt_oidtonum(frame->header->oid);

        if (n != OID_NUM_LAST)
                prism54_process_trap_helper(netdev_priv(ndev), n, frame->data);
        islpci_mgt_release(frame);
}

int
prism54_set_mac_address(struct net_device *ndev, void *addr)
{
        islpci_private *priv = netdev_priv(ndev);
        int ret;

        if (ndev->addr_len != 6)
                return -EINVAL;
        ret = mgt_set_request(priv, GEN_OID_MACADDRESS, 0,
                              &((struct sockaddr *) addr)->sa_data);
        if (!ret)
                memcpy(priv->ndev->dev_addr,
                       &((struct sockaddr *) addr)->sa_data, 6);

        return ret;
}

/* Note: currently, use hostapd ioctl from the Host AP driver for WPA
 * support. This is to be replaced with Linux wireless extensions once they
 * get WPA support. */

/* Note II: please leave all this together as it will be easier to remove later,
 * once wireless extensions add WPA support -mcgrof */

/* PRISM54_HOSTAPD ioctl() cmd: */
enum {
        PRISM2_SET_ENCRYPTION = 6,
        PRISM2_HOSTAPD_SET_GENERIC_ELEMENT = 12,
        PRISM2_HOSTAPD_MLME = 13,
        PRISM2_HOSTAPD_SCAN_REQ = 14,
};

#define PRISM54_SET_WPA                 SIOCIWFIRSTPRIV+12
#define PRISM54_HOSTAPD                 SIOCIWFIRSTPRIV+25
#define PRISM54_DROP_UNENCRYPTED        SIOCIWFIRSTPRIV+26

#define PRISM2_HOSTAPD_MAX_BUF_SIZE 1024
#define PRISM2_HOSTAPD_GENERIC_ELEMENT_HDR_LEN \
        offsetof(struct prism2_hostapd_param, u.generic_elem.data)

/* Maximum length for algorithm names (-1 for nul termination)
 * used in ioctl() */
#define HOSTAP_CRYPT_ALG_NAME_LEN 16

struct prism2_hostapd_param {
        u32 cmd;
        u8 sta_addr[ETH_ALEN];
        union {
               struct {
                       u8 alg[HOSTAP_CRYPT_ALG_NAME_LEN];
                       u32 flags;
                       u32 err;
                       u8 idx;
                       u8 seq[8]; /* sequence counter (set: RX, get: TX) */
                       u16 key_len;
                       u8 key[0];
                       } crypt;
               struct {
                       u8 len;
                       u8 data[0];
               } generic_elem;
               struct {
#define MLME_STA_DEAUTH 0
#define MLME_STA_DISASSOC 1
                       u16 cmd;
                       u16 reason_code;
               } mlme;
               struct {
                       u8 ssid_len;
                       u8 ssid[32];
               } scan_req;
       } u;
};


static int
prism2_ioctl_set_encryption(struct net_device *dev,
        struct prism2_hostapd_param *param,
        int param_len)
{
        islpci_private *priv = netdev_priv(dev);
        int rvalue = 0, force = 0;
        int authen = DOT11_AUTH_OS, invoke = 0, exunencrypt = 0;
        union oid_res_t r;

        /* with the new API, it's impossible to get a NULL pointer.
         * New version of iwconfig set the IW_ENCODE_NOKEY flag
         * when no key is given, but older versions don't. */

        if (param->u.crypt.key_len > 0) {
                /* we have a key to set */
                int index = param->u.crypt.idx;
                int current_index;
                struct obj_key key = { DOT11_PRIV_TKIP, 0, "" };

                /* get the current key index */
                rvalue = mgt_get_request(priv, DOT11_OID_DEFKEYID, 0, NULL, &r);
                current_index = r.u;
                /* Verify that the key is not marked as invalid */
                if (!(param->u.crypt.flags & IW_ENCODE_NOKEY)) {
                        key.length = param->u.crypt.key_len > sizeof (param->u.crypt.key) ?
                            sizeof (param->u.crypt.key) : param->u.crypt.key_len;
                        memcpy(key.key, param->u.crypt.key, key.length);
                        if (key.length == 32)
                                /* we want WPA-PSK */
                                key.type = DOT11_PRIV_TKIP;
                        if ((index < 0) || (index > 3))
                                /* no index provided use the current one */
                                index = current_index;

                        /* now send the key to the card  */
                        rvalue |=
                            mgt_set_request(priv, DOT11_OID_DEFKEYX, index,
                                            &key);
                }
                /*
                 * If a valid key is set, encryption should be enabled
                 * (user may turn it off later).
                 * This is also how "iwconfig ethX key on" works
                 */
                if ((index == current_index) && (key.length > 0))
                        force = 1;
        } else {
                int index = (param->u.crypt.flags & IW_ENCODE_INDEX) - 1;
                if ((index >= 0) && (index <= 3)) {
                        /* we want to set the key index */
                        rvalue |=
                            mgt_set_request(priv, DOT11_OID_DEFKEYID, 0,
                                            &index);
                } else {
                        if (!(param->u.crypt.flags & IW_ENCODE_MODE)) {
                                /* we cannot do anything. Complain. */
                                return -EINVAL;
                        }
                }
        }
        /* now read the flags */
        if (param->u.crypt.flags & IW_ENCODE_DISABLED) {
                /* Encoding disabled,
                 * authen = DOT11_AUTH_OS;
                 * invoke = 0;
                 * exunencrypt = 0; */
        }
        if (param->u.crypt.flags & IW_ENCODE_OPEN)
                /* Encode but accept non-encoded packets. No auth */
                invoke = 1;
        if ((param->u.crypt.flags & IW_ENCODE_RESTRICTED) || force) {
                /* Refuse non-encoded packets. Auth */
                authen = DOT11_AUTH_BOTH;
                invoke = 1;
                exunencrypt = 1;
        }
        /* do the change if requested  */
        if ((param->u.crypt.flags & IW_ENCODE_MODE) || force) {
                rvalue |=
                    mgt_set_request(priv, DOT11_OID_AUTHENABLE, 0, &authen);
                rvalue |=
                    mgt_set_request(priv, DOT11_OID_PRIVACYINVOKED, 0, &invoke);
                rvalue |=
                    mgt_set_request(priv, DOT11_OID_EXUNENCRYPTED, 0,
                                    &exunencrypt);
        }
        return rvalue;
}

static int
prism2_ioctl_set_generic_element(struct net_device *ndev,
        struct prism2_hostapd_param *param,
        int param_len)
{
       islpci_private *priv = netdev_priv(ndev);
       int max_len, len, alen, ret=0;
       struct obj_attachment *attach;

       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;

       alen = sizeof(*attach) + len;
       attach = kzalloc(alen, GFP_KERNEL);
       if (attach == NULL)
               return -ENOMEM;

#define WLAN_FC_TYPE_MGMT 0
#define WLAN_FC_STYPE_ASSOC_REQ 0
#define WLAN_FC_STYPE_REASSOC_REQ 2

       /* Note: endianness is covered by mgt_set_varlen */

       attach->type = (WLAN_FC_TYPE_MGMT << 2) |
               (WLAN_FC_STYPE_ASSOC_REQ << 4);
       attach->id = -1;
       attach->size = len;
       memcpy(attach->data, param->u.generic_elem.data, len);

       ret = mgt_set_varlen(priv, DOT11_OID_ATTACHMENT, attach, len);

       if (ret == 0) {
               attach->type = (WLAN_FC_TYPE_MGMT << 2) |
                       (WLAN_FC_STYPE_REASSOC_REQ << 4);

               ret = mgt_set_varlen(priv, DOT11_OID_ATTACHMENT, attach, len);

               if (ret == 0)
                       printk(KERN_DEBUG "%s: WPA IE Attachment was set\n",
                                       ndev->name);
       }

       kfree(attach);
       return ret;

}

static int
prism2_ioctl_mlme(struct net_device *dev, struct prism2_hostapd_param *param)
{
        return -EOPNOTSUPP;
}

static int
prism2_ioctl_scan_req(struct net_device *ndev,
                     struct prism2_hostapd_param *param)
{
        islpci_private *priv = netdev_priv(ndev);
        struct iw_request_info info;
        int i, rvalue;
        struct obj_bsslist *bsslist;
        u32 noise = 0;
        char *extra = "";
        char *current_ev = "foo";
        union oid_res_t r;

        if (islpci_get_state(priv) < PRV_STATE_INIT) {
                /* device is not ready, fail gently */
                return 0;
        }

        /* first get the noise value. We will use it to report the link quality */
        rvalue = mgt_get_request(priv, DOT11_OID_NOISEFLOOR, 0, NULL, &r);
        noise = r.u;

        /* Ask the device for a list of known bss. We can report at most
         * IW_MAX_AP=64 to the range struct. But the device won't repport anything
         * if you change the value of IWMAX_BSS=24.
         */
        rvalue |= mgt_get_request(priv, DOT11_OID_BSSLIST, 0, NULL, &r);
        bsslist = r.ptr;

        info.cmd = PRISM54_HOSTAPD;
        info.flags = 0;

        /* ok now, scan the list and translate its info */
        for (i = 0; i < min(IW_MAX_AP, (int) bsslist->nr); i++)
                current_ev = prism54_translate_bss(ndev, &info, current_ev,
                                                   extra + IW_SCAN_MAX_DATA,
                                                   &(bsslist->bsslist[i]),
                                                   noise);
        kfree(bsslist);

        return rvalue;
}

static int
prism54_hostapd(struct net_device *ndev, struct iw_point *p)
{
       struct prism2_hostapd_param *param;
       int ret = 0;
       u32 uwrq;

       printk(KERN_DEBUG "prism54_hostapd - len=%d\n", p->length);
       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)) {
               kfree(param);
               return -EFAULT;
       }

       switch (param->cmd) {
       case PRISM2_SET_ENCRYPTION:
               printk(KERN_DEBUG "%s: Caught WPA supplicant set encryption request\n",
                               ndev->name);
               ret = prism2_ioctl_set_encryption(ndev, param, p->length);
               break;
       case PRISM2_HOSTAPD_SET_GENERIC_ELEMENT:
               printk(KERN_DEBUG "%s: Caught WPA supplicant set WPA IE request\n",
                               ndev->name);
               ret = prism2_ioctl_set_generic_element(ndev, param,
                                                      p->length);
               break;
       case PRISM2_HOSTAPD_MLME:
               printk(KERN_DEBUG "%s: Caught WPA supplicant MLME request\n",
                               ndev->name);
               ret = prism2_ioctl_mlme(ndev, param);
               break;
       case PRISM2_HOSTAPD_SCAN_REQ:
               printk(KERN_DEBUG "%s: Caught WPA supplicant scan request\n",
                               ndev->name);
               ret = prism2_ioctl_scan_req(ndev, param);
               break;
        case PRISM54_SET_WPA:
               printk(KERN_DEBUG "%s: Caught WPA supplicant wpa init request\n",
                               ndev->name);
               uwrq = 1;
               ret = prism54_set_wpa(ndev, NULL, &uwrq, NULL);
               break;
        case PRISM54_DROP_UNENCRYPTED:
               printk(KERN_DEBUG "%s: Caught WPA drop unencrypted request\n",
                               ndev->name);
#if 0
               uwrq = 0x01;
               mgt_set(priv, DOT11_OID_EXUNENCRYPTED, &uwrq);
               down_write(&priv->mib_sem);
               mgt_commit(priv);
               up_write(&priv->mib_sem);
#endif
               /* Not necessary, as set_wpa does it, should we just do it here though? */
               ret = 0;
               break;
       default:
               printk(KERN_DEBUG "%s: Caught a WPA supplicant request that is not supported\n",
                               ndev->name);
               ret = -EOPNOTSUPP;
               break;
       }

       if (ret == 0 && copy_to_user(p->pointer, param, p->length))
               ret = -EFAULT;

       kfree(param);

       return ret;
}

static int
prism54_set_wpa(struct net_device *ndev, struct iw_request_info *info,
                __u32 * uwrq, char *extra)
{
        islpci_private *priv = netdev_priv(ndev);
        u32 mlme, authen, dot1x, filter, wep;

        if (islpci_get_state(priv) < PRV_STATE_INIT)
                return 0;

        wep = 1; /* For privacy invoked */
        filter = 1; /* Filter out all unencrypted frames */
        dot1x = 0x01; /* To enable eap filter */
        mlme = DOT11_MLME_EXTENDED;
        authen = DOT11_AUTH_OS; /* Only WEP uses _SK and _BOTH */

        down_write(&priv->mib_sem);
        priv->wpa = *uwrq;

        switch (priv->wpa) {
                default:
                case 0: /* Clears/disables WPA and friends */
                        wep = 0;
                        filter = 0; /* Do not filter un-encrypted data */
                        dot1x = 0;
                        mlme = DOT11_MLME_AUTO;
                        printk("%s: Disabling WPA\n", ndev->name);
                        break;
                case 2:
                case 1: /* WPA */
                        printk("%s: Enabling WPA\n", ndev->name);
                        break;
        }
        up_write(&priv->mib_sem);

        mgt_set_request(priv, DOT11_OID_AUTHENABLE, 0, &authen);
        mgt_set_request(priv, DOT11_OID_PRIVACYINVOKED, 0, &wep);
        mgt_set_request(priv, DOT11_OID_EXUNENCRYPTED, 0, &filter);
        mgt_set_request(priv, DOT11_OID_DOT1XENABLE, 0, &dot1x);
        mgt_set_request(priv, DOT11_OID_MLMEAUTOLEVEL, 0, &mlme);

        return 0;
}

static int
prism54_get_wpa(struct net_device *ndev, struct iw_request_info *info,
                __u32 * uwrq, char *extra)
{
        islpci_private *priv = netdev_priv(ndev);
        *uwrq = priv->wpa;
        return 0;
}

static int
prism54_set_prismhdr(struct net_device *ndev, struct iw_request_info *info,
                     __u32 * uwrq, char *extra)
{
        islpci_private *priv = netdev_priv(ndev);
        priv->monitor_type =
            (*uwrq ? ARPHRD_IEEE80211_PRISM : ARPHRD_IEEE80211);
        if (priv->iw_mode == IW_MODE_MONITOR)
                priv->ndev->type = priv->monitor_type;

        return 0;
}

static int
prism54_get_prismhdr(struct net_device *ndev, struct iw_request_info *info,
                     __u32 * uwrq, char *extra)
{
        islpci_private *priv = netdev_priv(ndev);
        *uwrq = (priv->monitor_type == ARPHRD_IEEE80211_PRISM);
        return 0;
}

static int
prism54_debug_oid(struct net_device *ndev, struct iw_request_info *info,
                  __u32 * uwrq, char *extra)
{
        islpci_private *priv = netdev_priv(ndev);

        priv->priv_oid = *uwrq;
        printk("%s: oid 0x%08X\n", ndev->name, *uwrq);

        return 0;
}

static int
prism54_debug_get_oid(struct net_device *ndev, struct iw_request_info *info,
                      struct iw_point *data, char *extra)
{
        islpci_private *priv = netdev_priv(ndev);
        struct islpci_mgmtframe *response;
        int ret = -EIO;

        printk("%s: get_oid 0x%08X\n", ndev->name, priv->priv_oid);
        data->length = 0;

        if (islpci_get_state(priv) >= PRV_STATE_INIT) {
                ret =
                    islpci_mgt_transaction(priv->ndev, PIMFOR_OP_GET,
                                           priv->priv_oid, extra, 256,
                                           &response);
                printk("%s: ret: %i\n", ndev->name, ret);
                if (ret || !response
                    || response->header->operation == PIMFOR_OP_ERROR) {
                        if (response) {
                                islpci_mgt_release(response);
                        }
                        printk("%s: EIO\n", ndev->name);
                        ret = -EIO;
                }
                if (!ret) {
                        data->length = response->header->length;
                        memcpy(extra, response->data, data->length);
                        islpci_mgt_release(response);
                        printk("%s: len: %i\n", ndev->name, data->length);
                }
        }

        return ret;
}

static int
prism54_debug_set_oid(struct net_device *ndev, struct iw_request_info *info,
                      struct iw_point *data, char *extra)
{
        islpci_private *priv = netdev_priv(ndev);
        struct islpci_mgmtframe *response;
        int ret = 0, response_op = PIMFOR_OP_ERROR;

        printk("%s: set_oid 0x%08X\tlen: %d\n", ndev->name, priv->priv_oid,
               data->length);

        if (islpci_get_state(priv) >= PRV_STATE_INIT) {
                ret =
                    islpci_mgt_transaction(priv->ndev, PIMFOR_OP_SET,
                                           priv->priv_oid, extra, data->length,
                                           &response);
                printk("%s: ret: %i\n", ndev->name, ret);
                if (ret || !response
                    || response->header->operation == PIMFOR_OP_ERROR) {
                        if (response) {
                                islpci_mgt_release(response);
                        }
                        printk("%s: EIO\n", ndev->name);
                        ret = -EIO;
                }
                if (!ret) {
                        response_op = response->header->operation;
                        printk("%s: response_op: %i\n", ndev->name,
                               response_op);
                        islpci_mgt_release(response);
                }
        }

        return (ret ? ret : -EINPROGRESS);
}

static int
prism54_set_spy(struct net_device *ndev,
                struct iw_request_info *info,
                union iwreq_data *uwrq, char *extra)
{
        islpci_private *priv = netdev_priv(ndev);
        u32 u;
        enum oid_num_t oid = OID_INL_CONFIG;

        down_write(&priv->mib_sem);
        mgt_get(priv, OID_INL_CONFIG, &u);

        if ((uwrq->data.length == 0) && (priv->spy_data.spy_number > 0))
                /* disable spy */
                u &= ~INL_CONFIG_RXANNEX;
        else if ((uwrq->data.length > 0) && (priv->spy_data.spy_number == 0))
                /* enable spy */
                u |= INL_CONFIG_RXANNEX;

        mgt_set(priv, OID_INL_CONFIG, &u);
        mgt_commit_list(priv, &oid, 1);
        up_write(&priv->mib_sem);