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Diffstat (limited to 'drivers/net/wireless/ipw2x00/libipw_wx.c')
-rw-r--r--drivers/net/wireless/ipw2x00/libipw_wx.c760
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 00000000000..31ea3abfc32
--- /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);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-07 23:53:33 +0000