net/ieee80211 -> drivers/net/ipw2x00/libipw_* rename

The old ieee80211 code only remains as a support library for the ipw2100
and ipw2200 drivers.  So, move the code and rename it appropriately to
reflects it's true purpose and status.

Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 760 insertions, 0 deletions

diff --git a/drivers/net/wireless/ipw2x00/libipw_wx.c b/drivers/net/wireless/ipw2x00/libipw_wx.c
new file mode 100644
index 000000000000..31ea3abfc327
--- /dev/null
+++ b/drivers/net/wireless/ipw2x00/libipw_wx.c
@@ -0,0 +1,760 @@
+/******************************************************************************
+
+  Copyright(c) 2004-2005 Intel Corporation. All rights reserved.
+
+  Portions of this file are based on the WEP enablement code provided by the
+  Host AP project hostap-drivers v0.1.3
+  Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
+  <j@w1.fi>
+  Copyright (c) 2002-2003, Jouni Malinen <j@w1.fi>
+
+  This program is free software; you can redistribute it and/or modify it
+  under the terms of version 2 of the GNU General Public License as
+  published by the Free Software Foundation.
+
+  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.
+
+  The full GNU General Public License is included in this distribution in the
+  file called LICENSE.
+
+  Contact Information:
+  James P. Ketrenos <ipw2100-admin@linux.intel.com>
+  Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+
+******************************************************************************/
+
+#include <linux/kmod.h>
+#include <linux/module.h>
+#include <linux/jiffies.h>
+
+#include <net/lib80211.h>
+#include <net/ieee80211.h>
+#include <linux/wireless.h>
+
+static const char *ieee80211_modes[] = {
+        "?", "a", "b", "ab", "g", "ag", "bg", "abg"
+};
+
+#define MAX_CUSTOM_LEN 64
+static char *ieee80211_translate_scan(struct ieee80211_device *ieee,
+                                      char *start, char *stop,
+                                      struct ieee80211_network *network,
+                                      struct iw_request_info *info)
+{
+        char custom[MAX_CUSTOM_LEN];
+        char *p;
+        struct iw_event iwe;
+        int i, j;
+        char *current_val;      /* For rates */
+        u8 rate;
+
+        /* First entry *MUST* be the AP MAC address */
+        iwe.cmd = SIOCGIWAP;
+        iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
+        memcpy(iwe.u.ap_addr.sa_data, network->bssid, ETH_ALEN);
+        start = iwe_stream_add_event(info, start, stop, &iwe, IW_EV_ADDR_LEN);
+
+        /* Remaining entries will be displayed in the order we provide them */
+
+        /* Add the ESSID */
+        iwe.cmd = SIOCGIWESSID;
+        iwe.u.data.flags = 1;
+        iwe.u.data.length = min(network->ssid_len, (u8) 32);
+        start = iwe_stream_add_point(info, start, stop,
+                                     &iwe, network->ssid);
+
+        /* Add the protocol name */
+        iwe.cmd = SIOCGIWNAME;
+        snprintf(iwe.u.name, IFNAMSIZ, "IEEE 802.11%s",
+                 ieee80211_modes[network->mode]);
+        start = iwe_stream_add_event(info, start, stop, &iwe, IW_EV_CHAR_LEN);
+
+        /* Add mode */
+        iwe.cmd = SIOCGIWMODE;
+        if (network->capability & (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)) {
+                if (network->capability & WLAN_CAPABILITY_ESS)
+                        iwe.u.mode = IW_MODE_MASTER;
+                else
+                        iwe.u.mode = IW_MODE_ADHOC;
+
+                start = iwe_stream_add_event(info, start, stop,
+                                             &iwe, IW_EV_UINT_LEN);
+        }
+
+        /* Add channel and frequency */
+        /* Note : userspace automatically computes channel using iwrange */
+        iwe.cmd = SIOCGIWFREQ;
+        iwe.u.freq.m = ieee80211_channel_to_freq(ieee, network->channel);
+        iwe.u.freq.e = 6;
+        iwe.u.freq.i = 0;
+        start = iwe_stream_add_event(info, start, stop, &iwe, IW_EV_FREQ_LEN);
+
+        /* Add encryption capability */
+        iwe.cmd = SIOCGIWENCODE;
+        if (network->capability & WLAN_CAPABILITY_PRIVACY)
+                iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
+        else
+                iwe.u.data.flags = IW_ENCODE_DISABLED;
+        iwe.u.data.length = 0;
+        start = iwe_stream_add_point(info, start, stop,
+                                     &iwe, network->ssid);
+
+        /* Add basic and extended rates */
+        /* Rate : stuffing multiple values in a single event require a bit
+         * more of magic - Jean II */
+        current_val = start + iwe_stream_lcp_len(info);
+        iwe.cmd = SIOCGIWRATE;
+        /* Those two flags are ignored... */
+        iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
+
+        for (i = 0, j = 0; i < network->rates_len;) {
+                if (j < network->rates_ex_len &&
+                    ((network->rates_ex[j] & 0x7F) <
+                     (network->rates[i] & 0x7F)))
+                        rate = network->rates_ex[j++] & 0x7F;
+                else
+                        rate = network->rates[i++] & 0x7F;
+                /* Bit rate given in 500 kb/s units (+ 0x80) */
+                iwe.u.bitrate.value = ((rate & 0x7f) * 500000);
+                /* Add new value to event */
+                current_val = iwe_stream_add_value(info, start, current_val,
+                                                   stop, &iwe, IW_EV_PARAM_LEN);
+        }
+        for (; j < network->rates_ex_len; j++) {
+                rate = network->rates_ex[j] & 0x7F;
+                /* Bit rate given in 500 kb/s units (+ 0x80) */
+                iwe.u.bitrate.value = ((rate & 0x7f) * 500000);
+                /* Add new value to event */
+                current_val = iwe_stream_add_value(info, start, current_val,
+                                                   stop, &iwe, IW_EV_PARAM_LEN);
+        }
+        /* Check if we added any rate */
+        if ((current_val - start) > iwe_stream_lcp_len(info))
+                start = current_val;
+
+        /* Add quality statistics */
+        iwe.cmd = IWEVQUAL;
+        iwe.u.qual.updated = IW_QUAL_QUAL_UPDATED | IW_QUAL_LEVEL_UPDATED |
+            IW_QUAL_NOISE_UPDATED;
+
+        if (!(network->stats.mask & IEEE80211_STATMASK_RSSI)) {
+                iwe.u.qual.updated |= IW_QUAL_QUAL_INVALID |
+                    IW_QUAL_LEVEL_INVALID;
+                iwe.u.qual.qual = 0;
+        } else {
+                if (ieee->perfect_rssi == ieee->worst_rssi)
+                        iwe.u.qual.qual = 100;
+                else
+                        iwe.u.qual.qual =
+                            (100 *
+                             (ieee->perfect_rssi - ieee->worst_rssi) *
+                             (ieee->perfect_rssi - ieee->worst_rssi) -
+                             (ieee->perfect_rssi - network->stats.rssi) *
+                             (15 * (ieee->perfect_rssi - ieee->worst_rssi) +
+                              62 * (ieee->perfect_rssi -
+                                    network->stats.rssi))) /
+                            ((ieee->perfect_rssi -
+                              ieee->worst_rssi) * (ieee->perfect_rssi -
+                                                   ieee->worst_rssi));
+                if (iwe.u.qual.qual > 100)
+                        iwe.u.qual.qual = 100;
+                else if (iwe.u.qual.qual < 1)
+                        iwe.u.qual.qual = 0;
+        }
+
+        if (!(network->stats.mask & IEEE80211_STATMASK_NOISE)) {
+                iwe.u.qual.updated |= IW_QUAL_NOISE_INVALID;
+                iwe.u.qual.noise = 0;
+        } else {
+                iwe.u.qual.noise = network->stats.noise;
+        }
+
+        if (!(network->stats.mask & IEEE80211_STATMASK_SIGNAL)) {
+                iwe.u.qual.updated |= IW_QUAL_LEVEL_INVALID;
+                iwe.u.qual.level = 0;
+        } else {
+                iwe.u.qual.level = network->stats.signal;
+        }
+
+        start = iwe_stream_add_event(info, start, stop, &iwe, IW_EV_QUAL_LEN);
+
+        iwe.cmd = IWEVCUSTOM;
+        p = custom;
+
+        iwe.u.data.length = p - custom;
+        if (iwe.u.data.length)
+                start = iwe_stream_add_point(info, start, stop, &iwe, custom);
+
+        memset(&iwe, 0, sizeof(iwe));
+        if (network->wpa_ie_len) {
+                char buf[MAX_WPA_IE_LEN];
+                memcpy(buf, network->wpa_ie, network->wpa_ie_len);
+                iwe.cmd = IWEVGENIE;
+                iwe.u.data.length = network->wpa_ie_len;
+                start = iwe_stream_add_point(info, start, stop, &iwe, buf);
+        }
+
+        memset(&iwe, 0, sizeof(iwe));
+        if (network->rsn_ie_len) {
+                char buf[MAX_WPA_IE_LEN];
+                memcpy(buf, network->rsn_ie, network->rsn_ie_len);
+                iwe.cmd = IWEVGENIE;
+                iwe.u.data.length = network->rsn_ie_len;
+                start = iwe_stream_add_point(info, start, stop, &iwe, buf);
+        }
+
+        /* Add EXTRA: Age to display seconds since last beacon/probe response
+         * for given network. */
+        iwe.cmd = IWEVCUSTOM;
+        p = custom;
+        p += snprintf(p, MAX_CUSTOM_LEN - (p - custom),
+                      " Last beacon: %dms ago",
+                      jiffies_to_msecs(jiffies - network->last_scanned));
+        iwe.u.data.length = p - custom;
+        if (iwe.u.data.length)
+                start = iwe_stream_add_point(info, start, stop, &iwe, custom);
+
+        /* Add spectrum management information */
+        iwe.cmd = -1;
+        p = custom;
+        p += snprintf(p, MAX_CUSTOM_LEN - (p - custom), " Channel flags: ");
+
+        if (ieee80211_get_channel_flags(ieee, network->channel) &
+            IEEE80211_CH_INVALID) {
+                iwe.cmd = IWEVCUSTOM;
+                p += snprintf(p, MAX_CUSTOM_LEN - (p - custom), "INVALID ");
+        }
+
+        if (ieee80211_get_channel_flags(ieee, network->channel) &
+            IEEE80211_CH_RADAR_DETECT) {
+                iwe.cmd = IWEVCUSTOM;
+                p += snprintf(p, MAX_CUSTOM_LEN - (p - custom), "DFS ");
+        }
+
+        if (iwe.cmd == IWEVCUSTOM) {
+                iwe.u.data.length = p - custom;
+                start = iwe_stream_add_point(info, start, stop, &iwe, custom);
+        }
+
+        return start;
+}
+
+#define SCAN_ITEM_SIZE 128
+
+int ieee80211_wx_get_scan(struct ieee80211_device *ieee,
+                          struct iw_request_info *info,
+                          union iwreq_data *wrqu, char *extra)
+{
+        struct ieee80211_network *network;
+        unsigned long flags;
+        int err = 0;
+
+        char *ev = extra;
+        char *stop = ev + wrqu->data.length;
+        int i = 0;
+        DECLARE_SSID_BUF(ssid);
+
+        IEEE80211_DEBUG_WX("Getting scan\n");
+
+        spin_lock_irqsave(&ieee->lock, flags);
+
+        list_for_each_entry(network, &ieee->network_list, list) {
+                i++;
+                if (stop - ev < SCAN_ITEM_SIZE) {
+                        err = -E2BIG;
+                        break;
+                }
+
+                if (ieee->scan_age == 0 ||
+                    time_after(network->last_scanned + ieee->scan_age, jiffies))
+                        ev = ieee80211_translate_scan(ieee, ev, stop, network,
+                                                      info);
+                else
+                        IEEE80211_DEBUG_SCAN("Not showing network '%s ("
+                                             "%pM)' due to age (%dms).\n",
+                                             print_ssid(ssid, network->ssid,
+                                                         network->ssid_len),
+                                             network->bssid,
+                                             jiffies_to_msecs(jiffies -
+                                                              network->
+                                                              last_scanned));
+        }
+
+        spin_unlock_irqrestore(&ieee->lock, flags);
+
+        wrqu->data.length = ev - extra;
+        wrqu->data.flags = 0;
+
+        IEEE80211_DEBUG_WX("exit: %d networks returned.\n", i);
+
+        return err;
+}
+
+int ieee80211_wx_set_encode(struct ieee80211_device *ieee,
+                            struct iw_request_info *info,
+                            union iwreq_data *wrqu, char *keybuf)
+{
+        struct iw_point *erq = &(wrqu->encoding);
+        struct net_device *dev = ieee->dev;
+        struct ieee80211_security sec = {
+                .flags = 0
+        };
+        int i, key, key_provided, len;
+        struct lib80211_crypt_data **crypt;
+        int host_crypto = ieee->host_encrypt || ieee->host_decrypt || ieee->host_build_iv;
+        DECLARE_SSID_BUF(ssid);
+
+        IEEE80211_DEBUG_WX("SET_ENCODE\n");
+
+        key = erq->flags & IW_ENCODE_INDEX;
+        if (key) {
+                if (key > WEP_KEYS)
+                        return -EINVAL;
+                key--;
+                key_provided = 1;
+        } else {
+                key_provided = 0;
+                key = ieee->crypt_info.tx_keyidx;
+        }
+
+        IEEE80211_DEBUG_WX("Key: %d [%s]\n", key, key_provided ?
+                           "provided" : "default");
+
+        crypt = &ieee->crypt_info.crypt[key];
+
+        if (erq->flags & IW_ENCODE_DISABLED) {
+                if (key_provided && *crypt) {
+                        IEEE80211_DEBUG_WX("Disabling encryption on key %d.\n",
+                                           key);
+                        lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt);
+                } else
+                        IEEE80211_DEBUG_WX("Disabling encryption.\n");
+
+                /* Check all the keys to see if any are still configured,
+                 * and if no key index was provided, de-init them all */
+                for (i = 0; i < WEP_KEYS; i++) {
+                        if (ieee->crypt_info.crypt[i] != NULL) {
+                                if (key_provided)
+                                        break;
+                                lib80211_crypt_delayed_deinit(&ieee->crypt_info,
+                                                               &ieee->crypt_info.crypt[i]);
+                        }
+                }
+
+                if (i == WEP_KEYS) {
+                        sec.enabled = 0;
+                        sec.encrypt = 0;
+                        sec.level = SEC_LEVEL_0;
+                        sec.flags |= SEC_ENABLED | SEC_LEVEL | SEC_ENCRYPT;
+                }
+
+                goto done;
+        }
+
+        sec.enabled = 1;
+        sec.encrypt = 1;
+        sec.flags |= SEC_ENABLED | SEC_ENCRYPT;
+
+        if (*crypt != NULL && (*crypt)->ops != NULL &&
+            strcmp((*crypt)->ops->name, "WEP") != 0) {
+                /* changing to use WEP; deinit previously used algorithm
+                 * on this key */
+                lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt);
+        }
+
+        if (*crypt == NULL && host_crypto) {
+                struct lib80211_crypt_data *new_crypt;
+
+                /* take WEP into use */
+                new_crypt = kzalloc(sizeof(struct lib80211_crypt_data),
+                                    GFP_KERNEL);
+                if (new_crypt == NULL)
+                        return -ENOMEM;
+                new_crypt->ops = lib80211_get_crypto_ops("WEP");
+                if (!new_crypt->ops) {
+                        request_module("lib80211_crypt_wep");
+                        new_crypt->ops = lib80211_get_crypto_ops("WEP");
+                }
+
+                if (new_crypt->ops && try_module_get(new_crypt->ops->owner))
+                        new_crypt->priv = new_crypt->ops->init(key);
+
+                if (!new_crypt->ops || !new_crypt->priv) {
+                        kfree(new_crypt);
+                        new_crypt = NULL;
+
+                        printk(KERN_WARNING "%s: could not initialize WEP: "
+                               "load module lib80211_crypt_wep\n", dev->name);
+                        return -EOPNOTSUPP;
+                }
+                *crypt = new_crypt;
+        }
+
+        /* If a new key was provided, set it up */
+        if (erq->length > 0) {
+#ifdef CONFIG_IEEE80211_DEBUG
+                DECLARE_SSID_BUF(ssid);
+#endif
+
+                len = erq->length <= 5 ? 5 : 13;
+                memcpy(sec.keys[key], keybuf, erq->length);
+                if (len > erq->length)
+                        memset(sec.keys[key] + erq->length, 0,
+                               len - erq->length);
+                IEEE80211_DEBUG_WX("Setting key %d to '%s' (%d:%d bytes)\n",
+                                   key, print_ssid(ssid, sec.keys[key], len),
+                                   erq->length, len);
+                sec.key_sizes[key] = len;
+                if (*crypt)
+                        (*crypt)->ops->set_key(sec.keys[key], len, NULL,
+                                               (*crypt)->priv);
+                sec.flags |= (1 << key);
+                /* This ensures a key will be activated if no key is
+                 * explicitly set */
+                if (key == sec.active_key)
+                        sec.flags |= SEC_ACTIVE_KEY;
+
+        } else {
+                if (host_crypto) {
+                        len = (*crypt)->ops->get_key(sec.keys[key], WEP_KEY_LEN,
+                                                     NULL, (*crypt)->priv);
+                        if (len == 0) {
+                                /* Set a default key of all 0 */
+                                IEEE80211_DEBUG_WX("Setting key %d to all "
+                                                   "zero.\n", key);
+                                memset(sec.keys[key], 0, 13);
+                                (*crypt)->ops->set_key(sec.keys[key], 13, NULL,
+                                                       (*crypt)->priv);
+                                sec.key_sizes[key] = 13;
+                                sec.flags |= (1 << key);
+                        }
+                }
+                /* No key data - just set the default TX key index */
+                if (key_provided) {
+                        IEEE80211_DEBUG_WX("Setting key %d to default Tx "
+                                           "key.\n", key);
+                        ieee->crypt_info.tx_keyidx = key;
+                        sec.active_key = key;
+                        sec.flags |= SEC_ACTIVE_KEY;
+                }
+        }
+        if (erq->flags & (IW_ENCODE_OPEN | IW_ENCODE_RESTRICTED)) {
+                ieee->open_wep = !(erq->flags & IW_ENCODE_RESTRICTED);
+                sec.auth_mode = ieee->open_wep ? WLAN_AUTH_OPEN :
+                    WLAN_AUTH_SHARED_KEY;
+                sec.flags |= SEC_AUTH_MODE;
+                IEEE80211_DEBUG_WX("Auth: %s\n",
+                                   sec.auth_mode == WLAN_AUTH_OPEN ?
+                                   "OPEN" : "SHARED KEY");
+        }
+
+        /* For now we just support WEP, so only set that security level...
+         * TODO: When WPA is added this is one place that needs to change */
+        sec.flags |= SEC_LEVEL;
+        sec.level = SEC_LEVEL_1;        /* 40 and 104 bit WEP */
+        sec.encode_alg[key] = SEC_ALG_WEP;
+
+      done:
+        if (ieee->set_security)
+                ieee->set_security(dev, &sec);
+
+        /* Do not reset port if card is in Managed mode since resetting will
+         * generate new IEEE 802.11 authentication which may end up in looping
+         * with IEEE 802.1X.  If your hardware requires a reset after WEP
+         * configuration (for example... Prism2), implement the reset_port in
+         * the callbacks structures used to initialize the 802.11 stack. */
+        if (ieee->reset_on_keychange &&
+            ieee->iw_mode != IW_MODE_INFRA &&
+            ieee->reset_port && ieee->reset_port(dev)) {
+                printk(KERN_DEBUG "%s: reset_port failed\n", dev->name);
+                return -EINVAL;
+        }
+        return 0;
+}
+
+int ieee80211_wx_get_encode(struct ieee80211_device *ieee,
+                            struct iw_request_info *info,
+                            union iwreq_data *wrqu, char *keybuf)
+{
+        struct iw_point *erq = &(wrqu->encoding);
+        int len, key;
+        struct lib80211_crypt_data *crypt;
+        struct ieee80211_security *sec = &ieee->sec;
+
+        IEEE80211_DEBUG_WX("GET_ENCODE\n");
+
+        key = erq->flags & IW_ENCODE_INDEX;
+        if (key) {
+                if (key > WEP_KEYS)
+                        return -EINVAL;
+                key--;
+        } else
+                key = ieee->crypt_info.tx_keyidx;
+
+        crypt = ieee->crypt_info.crypt[key];
+        erq->flags = key + 1;
+
+        if (!sec->enabled) {
+                erq->length = 0;
+                erq->flags |= IW_ENCODE_DISABLED;
+                return 0;
+        }
+
+        len = sec->key_sizes[key];
+        memcpy(keybuf, sec->keys[key], len);
+
+        erq->length = len;
+        erq->flags |= IW_ENCODE_ENABLED;
+
+        if (ieee->open_wep)
+                erq->flags |= IW_ENCODE_OPEN;
+        else
+                erq->flags |= IW_ENCODE_RESTRICTED;
+
+        return 0;
+}
+
+int ieee80211_wx_set_encodeext(struct ieee80211_device *ieee,
+                               struct iw_request_info *info,
+                               union iwreq_data *wrqu, char *extra)
+{
+        struct net_device *dev = ieee->dev;
+        struct iw_point *encoding = &wrqu->encoding;
+        struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
+        int i, idx, ret = 0;
+        int group_key = 0;
+        const char *alg, *module;
+        struct lib80211_crypto_ops *ops;
+        struct lib80211_crypt_data **crypt;
+
+        struct ieee80211_security sec = {
+                .flags = 0,
+        };
+
+        idx = encoding->flags & IW_ENCODE_INDEX;
+        if (idx) {
+                if (idx < 1 || idx > WEP_KEYS)
+                        return -EINVAL;
+                idx--;
+        } else
+                idx = ieee->crypt_info.tx_keyidx;
+
+        if (ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY) {
+                crypt = &ieee->crypt_info.crypt[idx];
+                group_key = 1;
+        } else {
+                /* some Cisco APs use idx>0 for unicast in dynamic WEP */
+                if (idx != 0 && ext->alg != IW_ENCODE_ALG_WEP)
+                        return -EINVAL;
+                if (ieee->iw_mode == IW_MODE_INFRA)
+                        crypt = &ieee->crypt_info.crypt[idx];
+                else
+                        return -EINVAL;
+        }
+
+        sec.flags |= SEC_ENABLED | SEC_ENCRYPT;
+        if ((encoding->flags & IW_ENCODE_DISABLED) ||
+            ext->alg == IW_ENCODE_ALG_NONE) {
+                if (*crypt)
+                        lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt);
+
+                for (i = 0; i < WEP_KEYS; i++)
+                        if (ieee->crypt_info.crypt[i] != NULL)
+                                break;
+
+                if (i == WEP_KEYS) {
+                        sec.enabled = 0;
+                        sec.encrypt = 0;
+                        sec.level = SEC_LEVEL_0;
+                        sec.flags |= SEC_LEVEL;
+                }
+                goto done;
+        }
+
+        sec.enabled = 1;
+        sec.encrypt = 1;
+
+        if (group_key ? !ieee->host_mc_decrypt :
+            !(ieee->host_encrypt || ieee->host_decrypt ||
+              ieee->host_encrypt_msdu))
+                goto skip_host_crypt;
+
+        switch (ext->alg) {
+        case IW_ENCODE_ALG_WEP:
+                alg = "WEP";
+                module = "lib80211_crypt_wep";
+                break;
+        case IW_ENCODE_ALG_TKIP:
+                alg = "TKIP";
+                module = "lib80211_crypt_tkip";
+                break;
+        case IW_ENCODE_ALG_CCMP:
+                alg = "CCMP";
+                module = "lib80211_crypt_ccmp";
+                break;
+        default:
+                IEEE80211_DEBUG_WX("%s: unknown crypto alg %d\n",
+                                   dev->name, ext->alg);
+                ret = -EINVAL;
+                goto done;
+        }
+
+        ops = lib80211_get_crypto_ops(alg);
+        if (ops == NULL) {
+                request_module(module);
+                ops = lib80211_get_crypto_ops(alg);
+        }
+        if (ops == NULL) {
+                IEEE80211_DEBUG_WX("%s: unknown crypto alg %d\n",
+                                   dev->name, ext->alg);
+                ret = -EINVAL;
+                goto done;
+        }
+
+        if (*crypt == NULL || (*crypt)->ops != ops) {
+                struct lib80211_crypt_data *new_crypt;
+
+                lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt);
+
+                new_crypt = kzalloc(sizeof(*new_crypt), GFP_KERNEL);
+                if (new_crypt == NULL) {
+                        ret = -ENOMEM;
+                        goto done;
+                }
+                new_crypt->ops = ops;
+                if (new_crypt->ops && try_module_get(new_crypt->ops->owner))
+                        new_crypt->priv = new_crypt->ops->init(idx);
+                if (new_crypt->priv == NULL) {
+                        kfree(new_crypt);
+                        ret = -EINVAL;
+                        goto done;
+                }
+                *crypt = new_crypt;
+        }
+
+        if (ext->key_len > 0 && (*crypt)->ops->set_key &&
+            (*crypt)->ops->set_key(ext->key, ext->key_len, ext->rx_seq,
+                                   (*crypt)->priv) < 0) {
+                IEEE80211_DEBUG_WX("%s: key setting failed\n", dev->name);
+                ret = -EINVAL;
+                goto done;
+        }
+
+      skip_host_crypt:
+        if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY) {
+                ieee->crypt_info.tx_keyidx = idx;
+                sec.active_key = idx;
+                sec.flags |= SEC_ACTIVE_KEY;
+        }
+
+        if (ext->alg != IW_ENCODE_ALG_NONE) {
+                memcpy(sec.keys[idx], ext->key, ext->key_len);
+                sec.key_sizes[idx] = ext->key_len;
+                sec.flags |= (1 << idx);
+                if (ext->alg == IW_ENCODE_ALG_WEP) {
+                        sec.encode_alg[idx] = SEC_ALG_WEP;
+                        sec.flags |= SEC_LEVEL;
+                        sec.level = SEC_LEVEL_1;
+                } else if (ext->alg == IW_ENCODE_ALG_TKIP) {
+                        sec.encode_alg[idx] = SEC_ALG_TKIP;
+                        sec.flags |= SEC_LEVEL;
+                        sec.level = SEC_LEVEL_2;
+                } else if (ext->alg == IW_ENCODE_ALG_CCMP) {
+                        sec.encode_alg[idx] = SEC_ALG_CCMP;
+                        sec.flags |= SEC_LEVEL;
+                        sec.level = SEC_LEVEL_3;
+                }
+                /* Don't set sec level for group keys. */
+                if (group_key)
+                        sec.flags &= ~SEC_LEVEL;
+        }
+      done:
+        if (ieee->set_security)
+                ieee->set_security(ieee->dev, &sec);
+
+        /*
+         * Do not reset port if card is in Managed mode since resetting will
+         * generate new IEEE 802.11 authentication which may end up in looping
+         * with IEEE 802.1X. If your hardware requires a reset after WEP
+         * configuration (for example... Prism2), implement the reset_port in
+         * the callbacks structures used to initialize the 802.11 stack.
+         */
+        if (ieee->reset_on_keychange &&
+            ieee->iw_mode != IW_MODE_INFRA &&
+            ieee->reset_port && ieee->reset_port(dev)) {
+                IEEE80211_DEBUG_WX("%s: reset_port failed\n", dev->name);
+                return -EINVAL;
+        }
+
+        return ret;
+}
+
+int ieee80211_wx_get_encodeext(struct ieee80211_device *ieee,
+                               struct iw_request_info *info,
+                               union iwreq_data *wrqu, char *extra)
+{
+        struct iw_point *encoding = &wrqu->encoding;
+        struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
+        struct ieee80211_security *sec = &ieee->sec;
+        int idx, max_key_len;
+
+        max_key_len = encoding->length - sizeof(*ext);
+        if (max_key_len < 0)
+                return -EINVAL;
+
+        idx = encoding->flags & IW_ENCODE_INDEX;
+        if (idx) {
+                if (idx < 1 || idx > WEP_KEYS)
+                        return -EINVAL;
+                idx--;
+        } else
+                idx = ieee->crypt_info.tx_keyidx;
+
+        if (!(ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY) &&
+            ext->alg != IW_ENCODE_ALG_WEP)
+                if (idx != 0 || ieee->iw_mode != IW_MODE_INFRA)
+                        return -EINVAL;
+
+        encoding->flags = idx + 1;
+        memset(ext, 0, sizeof(*ext));
+
+        if (!sec->enabled) {
+                ext->alg = IW_ENCODE_ALG_NONE;
+                ext->key_len = 0;
+                encoding->flags |= IW_ENCODE_DISABLED;
+        } else {
+                if (sec->encode_alg[idx] == SEC_ALG_WEP)
+                        ext->alg = IW_ENCODE_ALG_WEP;
+                else if (sec->encode_alg[idx] == SEC_ALG_TKIP)
+                        ext->alg = IW_ENCODE_ALG_TKIP;
+                else if (sec->encode_alg[idx] == SEC_ALG_CCMP)
+                        ext->alg = IW_ENCODE_ALG_CCMP;
+                else
+                        return -EINVAL;
+
+                ext->key_len = sec->key_sizes[idx];
+                memcpy(ext->key, sec->keys[idx], ext->key_len);
+                encoding->flags |= IW_ENCODE_ENABLED;
+                if (ext->key_len &&
+                    (ext->alg == IW_ENCODE_ALG_TKIP ||
+                     ext->alg == IW_ENCODE_ALG_CCMP))
+                        ext->ext_flags |= IW_ENCODE_EXT_TX_SEQ_VALID;
+
+        }
+
+        return 0;
+}
+
+EXPORT_SYMBOL(ieee80211_wx_set_encodeext);
+EXPORT_SYMBOL(ieee80211_wx_get_encodeext);
+
+EXPORT_SYMBOL(ieee80211_wx_get_scan);
+EXPORT_SYMBOL(ieee80211_wx_set_encode);
+EXPORT_SYMBOL(ieee80211_wx_get_encode);