/******************************************************************************
Copyright(c) 2004 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
<jkmaline@cc.hut.fi>
Copyright (c) 2002-2003, Jouni Malinen <jkmaline@cc.hut.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/wireless.h>
#include <linux/kmod.h>
#include <linux/module.h>
#include "rtllib.h"
struct modes_unit {
char *mode_string;
int mode_size;
};
static struct modes_unit rtllib_modes[] = {
{"a", 1},
{"b", 1},
{"g", 1},
{"?", 1},
{"N-24G", 5},
{"N-5G", 4},
};
#define MAX_CUSTOM_LEN 64
static inline char *rtl819x_translate_scan(struct rtllib_device *ieee,
char *start, char *stop,
struct rtllib_network *network,
struct iw_request_info *info)
{
char custom[MAX_CUSTOM_LEN];
char proto_name[IFNAMSIZ];
char *pname = proto_name;
char *p;
struct iw_event iwe;
int i, j;
u16 max_rate, rate;
static u8 EWC11NHTCap[] = {0x00, 0x90, 0x4c, 0x33};
/* 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_rsl(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;
if (network->ssid_len > 0) {
iwe.u.data.length = min(network->ssid_len, (u8)32);
start = iwe_stream_add_point_rsl(info, start, stop, &iwe,
network->ssid);
} else if (network->hidden_ssid_len == 0) {
iwe.u.data.length = sizeof("<hidden>");
start = iwe_stream_add_point_rsl(info, start, stop,
&iwe, "<hidden>");
} else {
iwe.u.data.length = min(network->hidden_ssid_len, (u8)32);
start = iwe_stream_add_point_rsl(info, start, stop, &iwe,
network->hidden_ssid);
}
/* Add the protocol name */
iwe.cmd = SIOCGIWNAME;
for (i = 0; i < ARRAY_SIZE(rtllib_modes); i++) {
if (network->mode&(1<<i)) {
sprintf(pname, rtllib_modes[i].mode_string,
rtllib_modes[i].mode_size);
pname += rtllib_modes[i].mode_size;
}
}
*pname = '\0';
snprintf(iwe.u.name, IFNAMSIZ, "IEEE802.11%s", proto_name);
start = iwe_stream_add_event_rsl(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_rsl(info, start, stop,
&iwe, IW_EV_UINT_LEN);
}
/* Add frequency/channel */
iwe.cmd = SIOCGIWFREQ;
/* iwe.u.freq.m = rtllib_frequency(network->channel, network->mode);
iwe.u.freq.e = 3; */
iwe.u.freq.m = network->channel;
iwe.u.freq.e = 0;
iwe.u.freq.i = 0;
start = iwe_stream_add_event_rsl(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_rsl(info, start, stop,
&iwe, network->ssid);
/* Add basic and extended rates */
max_rate = 0;
p = custom;
p += snprintf(p, MAX_CUSTOM_LEN - (p - custom), " Rates (Mb/s): ");
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;
if (rate > max_rate)
max_rate = rate;
p += snprintf(p, MAX_CUSTOM_LEN - (p - custom),
"%d%s ", rate >> 1, (rate & 1) ? ".5" : "");
}
for (; j < network->rates_ex_len; j++) {
rate = network->rates_ex[j] & 0x7F;
p += snprintf(p, MAX_CUSTOM_LEN - (p - custom),
"%d%s ", rate >> 1, (rate & 1) ? ".5" : "");
if (rate > max_rate)
max_rate = rate;
}
if (network->mode >= IEEE_N_24G) {
struct ht_capab_ele *ht_cap = NULL;
bool is40M = false, isShortGI = false;
u8 max_mcs = 0;
if (!memcmp(network->bssht.bdHTCapBuf, EWC11NHTCap, 4))
ht_cap = (struct ht_capab_ele *)
&network->bssht.bdHTCapBuf[4];
else
ht_cap = (struct ht_capab_ele *)
&network->bssht.bdHTCapBuf[0];
is40M = (ht_cap->ChlWidth) ? 1 : 0;
isShortGI = (ht_cap->ChlWidth) ?
((ht_cap->ShortGI40Mhz) ? 1 : 0) :
((ht_cap->ShortGI20Mhz) ? 1 : 0);
max_mcs = HTGetHighestMCSRate(ieee, ht_cap->MCS,
MCS_FILTER_ALL);
rate = MCS_DATA_RATE[is40M][isShortGI][max_mcs & 0x7f];
if (rate > max_rate)
max_rate = rate;
}
iwe.cmd = SIOCGIWRATE;
iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
iwe.u.bitrate.value = max_rate * 500000;
start = iwe_stream_add_event_rsl(info, start, stop, &iwe,
IW_EV_PARAM_LEN);
iwe.cmd = IWEVCUSTOM;
iwe.u.data.length = p - custom;
if (iwe.u.data.length)
start = iwe_stream_add_point_rsl(info, start, stop,
&iwe, custom);
/* Add quality statistics */
/* TODO: Fix these values... */
iwe.cmd = IWEVQUAL;
iwe.u.qual.qual = network->stats.signal;
iwe.u.qual.level = network->stats.rssi;
iwe.u.qual.noise = network->stats.noise;
iwe.u.qual.updated = network->stats.mask & RTLLIB_STATMASK_WEMASK;
if (!(network->stats.mask & RTLLIB_STATMASK_RSSI))
iwe.u.qual.updated |= IW_QUAL_LEVEL_INVALID;
if (!(network->stats.mask & RTLLIB_STATMASK_NOISE))
iwe.u.qual.updated |= IW_QUAL_NOISE_INVALID;
if (!(network->stats.mask & RTLLIB_STATMASK_SIGNAL))
iwe.u.qual.updated |= IW_QUAL_QUAL_INVALID;
iwe.u.qual.updated = 7;
start = iwe_stream_add_event_rsl(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_rsl(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_rsl(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_rsl(info, start, stop, &iwe, buf);
}
/* add info for WZC */
memset(&iwe, 0, sizeof(iwe));
if (network->wzc_ie_len) {
char buf[MAX_WZC_IE_LEN];
memcpy(buf, network->wzc_ie, network->wzc_ie_len);
iwe.cmd = IWEVGENIE;
iwe.u.data.length = network->wzc_ie_len;
start = iwe_stream_add_point_rsl(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: %lums ago",
(jiffies - network->last_scanned) / (HZ / 100));
iwe.u.data.length = p - custom;
if (iwe.u.data.length)
start = iwe_stream_add_point_rsl(info, start, stop,
&iwe, custom);
return start;
}
int rtllib_wx_get_scan(struct rtllib_device *ieee,
struct iw_request_info *info,
union iwreq_data *wrqu, char *extra)
{
struct rtllib_network *network;
unsigned long flags;
char *ev = extra;
char *stop = ev + wrqu->data.length;
int i = 0;
int err = 0;
RTLLIB_DEBUG_WX("Getting scan\n");
down(&ieee->wx_sem);
spin_lock_irqsave(&ieee->lock, flags);
list_for_each_entry(network, &ieee->network_list, list) {
i++;
if ((stop - ev) < 200) {
err = -E2BIG;
break;
}
if (ieee->scan_age == 0 ||
time_after(network->last_scanned + ieee->scan_age, jiffies))
ev = rtl819x_translate_scan(ieee, ev, stop, network,
info);
else
RTLLIB_DEBUG_SCAN("Not showing network '%s ("
" %pM)' due to age (%lums).\n",
escape_essid(network->ssid,
network->ssid_len),
network->bssid,
(jiffies - network->last_scanned) / (HZ / 100));
}
spin_unlock_irqrestore(&ieee->lock, flags);
up(&ieee->wx_sem);
wrqu->data.length = ev - extra;
wrqu->data.flags = 0;
RTLLIB_DEBUG_WX("exit: %d networks returned.\n", i);
return err;
}
EXPORT_SYMBOL(rtllib_wx_get_scan);
int rtllib_wx_set_encode(struct rtllib_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 rtllib_security sec = {
.flags = 0
};
int i, key, key_provided, len;
struct lib80211_crypt_data **crypt;
RTLLIB_DEBUG_WX("SET_ENCODE\n");
key = erq->flags & IW_ENCODE_INDEX;
if (key) {
if (key > NUM_WEP_KEYS)
return -EINVAL;
key--;
key_provided = 1;
} else {
key_provided = 0;
key = ieee->crypt_info.tx_keyidx;
}
RTLLIB_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) {
RTLLIB_DEBUG_WX("Disabling encryption on key %d.\n",
key);
lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt);
} else
RTLLIB_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 < NUM_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 == NUM_WEP_KEYS) {
sec.enabled = 0;
sec.level = SEC_LEVEL_0;
sec.flags |= SEC_ENABLED | SEC_LEVEL;
}
goto done;
}
sec.enabled = 1;
sec.flags |= SEC_ENABLED;
if (*crypt != NULL && (*crypt)->ops != NULL &&
strcmp((*crypt)->ops->name, "R-WEP") != 0) {
/* changing to use WEP; deinit previously used algorithm
* on this key */
lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt);
}
if (*crypt == NULL) {
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("R-WEP");
if (!new_crypt->ops) {
request_module("rtllib_crypt_wep");
new_crypt->ops = lib80211_get_crypto_ops("R-WEP");
}
if (new_crypt->ops)
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 rtllib_crypt_wep\n",
dev->name);
return -EOPNOTSUPP;
}
*crypt = new_crypt;
}
/* If a new key was provided, set it up */
if (erq->length > 0) {
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);
RTLLIB_DEBUG_WX("Setting key %d to '%s' (%d:%d bytes)\n",
key, escape_essid(sec.keys[key], len),
erq->length, len);
sec.key_sizes[key] = len;
(*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;
ieee->crypt_info.tx_keyidx = key;
} else {
len = (*crypt)->ops->get_key(sec.keys[key], WEP_KEY_LEN,
NULL, (*crypt)->priv);
if (len == 0) {
/* Set a default key of all 0 */
printk(KERN_INFO "Setting key %d to all zero.\n",
key);
RTLLIB_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) {
RTLLIB_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;
}
}
done:
ieee->open_wep = !(erq->flags & IW_ENCODE_RESTRICTED);
ieee->auth_mode = ieee->open_wep ? WLAN_AUTH_OPEN :
WLAN_AUTH_SHARED_KEY;
sec.auth_mode = ieee->open_wep ? WLAN_AUTH_OPEN : WLAN_AUTH_SHARED_KEY;
sec.flags |= SEC_AUTH_MODE;
RTLLIB_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 */
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;
}
EXPORT_SYMBOL(rtllib_wx_set_encode);
int rtllib_wx_get_encode(struct rtllib_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;
RTLLIB_DEBUG_WX("GET_ENCODE\n");
if (ieee->iw_mode == IW_MODE_MONITOR)
return -1;
key = erq->flags & IW_ENCODE_INDEX;
if (key) {
if (key > NUM_WEP_KEYS)
return -EINVAL;
key--;
} else {
key = ieee->crypt_info.tx_keyidx;
}
crypt = ieee->crypt_info.crypt[key];
erq->flags = key + 1;
if (crypt == NULL || crypt->ops == NULL) {
erq->length = 0;
erq->flags |= IW_ENCODE_DISABLED;
return 0;
}
len = crypt->ops->get_key(keybuf, SCM_KEY_LEN, NULL, crypt->priv);
erq->length = (len >= 0 ? len : 0);
erq->flags |= IW_ENCODE_ENABLED;
if (ieee->open_wep)
erq->flags |= IW_ENCODE_OPEN;
else
erq->flags |= IW_ENCODE_RESTRICTED;
return 0;
}
EXPORT_SYMBOL(rtllib_wx_get_encode);
int rtllib_wx_set_encode_ext(struct rtllib_device *ieee,
struct iw_request_info *info,
union iwreq_data *wrqu, char *extra)
{
int ret = 0;
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;
int group_key = 0;
const char *alg, *module;
struct lib80211_crypto_ops *ops;
struct lib80211_crypt_data **crypt;
struct rtllib_security sec = {
.flags = 0,
};
idx = encoding->flags & IW_ENCODE_INDEX;
if (idx) {
if (idx < 1 || idx > NUM_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;
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 < NUM_WEP_KEYS; i++) {
if (ieee->crypt_info.crypt[i] != NULL)
break;
}
if (i == NUM_WEP_KEYS) {
sec.enabled = 0;
sec.level = SEC_LEVEL_0;
sec.flags |= SEC_LEVEL;
}
goto done;
}
sec.enabled = 1;
switch (ext->alg) {
case IW_ENCODE_ALG_WEP:
alg = "R-WEP";
module = "rtllib_crypt_wep";
break;
case IW_ENCODE_ALG_TKIP:
alg = "R-TKIP";
module = "rtllib_crypt_tkip";
break;
case IW_ENCODE_ALG_CCMP:
alg = "R-CCMP";
module = "rtllib_crypt_ccmp";
break;
default:
RTLLIB_DEBUG_WX("%s: unknown crypto alg %d\n",
dev->name, ext->alg);
ret = -EINVAL;
goto done;
}
printk(KERN_INFO "alg name:%s\n", alg);
ops = lib80211_get_crypto_ops(alg);
if (ops == NULL) {
char tempbuf[100];
memset(tempbuf, 0x00, 100);
sprintf(tempbuf, "%s", module);
request_module("%s", tempbuf);
ops = lib80211_get_crypto_ops(alg);
}
if (ops == NULL) {
RTLLIB_DEBUG_WX("%s: unknown crypto alg %d\n",
dev->name, ext->alg);
printk(KERN_INFO "========>unknown crypto alg %d\n", 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)
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) {
RTLLIB_DEBUG_WX("%s: key setting failed\n", dev->name);
printk(KERN_INFO "key setting failed\n");
ret = -EINVAL;
goto done;
}
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) {
sec.key_sizes[idx] = ext->key_len;
sec.flags |= (1 << idx);
if (ext->alg == IW_ENCODE_ALG_WEP) {
sec.flags |= SEC_LEVEL;
sec.level = SEC_LEVEL_1;
} else if (ext->alg == IW_ENCODE_ALG_TKIP) {
sec.flags |= SEC_LEVEL;
sec.level = SEC_LEVEL_2;
} else if (ext->alg == IW_ENCODE_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);
if (ieee->reset_on_keychange &&
ieee->iw_mode != IW_MODE_INFRA &&
ieee->reset_port && ieee->reset_port(dev)) {
RTLLIB_DEBUG_WX("%s: reset_port failed\n", dev->name);
return -EINVAL;
}
return ret;
}
EXPORT_SYMBOL(rtllib_wx_set_encode_ext);
int rtllib_wx_get_encode_ext(struct rtllib_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 lib80211_crypt_data *crypt;
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 > NUM_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;
crypt = ieee->crypt_info.crypt[idx];
encoding->flags = idx + 1;
memset(ext, 0, sizeof(*ext));
if (crypt == NULL || crypt->ops == NULL) {
ext->alg = IW_ENCODE_ALG_NONE;
ext->key_len = 0;
encoding->flags |= IW_ENCODE_DISABLED;
} else {
if (strcmp(crypt->ops->name, "R-WEP") == 0)
ext->alg = IW_ENCODE_ALG_WEP;
else if (strcmp(crypt->ops->name, "R-TKIP"))
ext->alg = IW_ENCODE_ALG_TKIP;
else if (strcmp(crypt->ops->name, "R-CCMP"))
ext->alg = IW_ENCODE_ALG_CCMP;
else
return -EINVAL;
ext->key_len = crypt->ops->get_key(ext->key, SCM_KEY_LEN,
NULL, crypt->priv);
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;
}
int rtllib_wx_set_mlme(struct rtllib_device *ieee,
struct iw_request_info *info,
union iwreq_data *wrqu, char *extra)
{
u8 i = 0;
bool deauth = false;
struct iw_mlme *mlme = (struct iw_mlme *) extra;
if (ieee->state != RTLLIB_LINKED)
return -ENOLINK;
down(&ieee->wx_sem);
switch (mlme->cmd) {
case IW_MLME_DEAUTH:
deauth = true;
/* leave break out intentionly */
case IW_MLME_DISASSOC:
if (deauth)
printk(KERN_INFO "disauth packet !\n");
else
printk(KERN_INFO "dis associate packet!\n");
ieee->cannot_notify = true;
SendDisassociation(ieee, deauth, mlme->reason_code);
rtllib_disassociate(ieee);
ieee->wap_set = 0;
for (i = 0; i < 6; i++)
ieee->current_network.bssid[i] = 0x55;
ieee->ssid_set = 0;
ieee->current_network.ssid[0] = '\0';
ieee->current_network.ssid_len = 0;
break;
default:
up(&ieee->wx_sem);
return -EOPNOTSUPP;
}
up(&ieee->wx_sem);
return 0;
}
EXPORT_SYMBOL(rtllib_wx_set_mlme);
int rtllib_wx_set_auth(struct rtllib_device *ieee,
struct iw_request_info *info,
struct iw_param *data, char *extra)
{
switch (data->flags & IW_AUTH_INDEX) {
case IW_AUTH_WPA_VERSION:
break;
case IW_AUTH_CIPHER_PAIRWISE:
case IW_AUTH_CIPHER_GROUP:
case IW_AUTH_KEY_MGMT:
/*
* Host AP driver does not use these parameters and allows
* wpa_supplicant to control them internally.
*/
break;
case IW_AUTH_TKIP_COUNTERMEASURES:
ieee->tkip_countermeasures = data->value;
break;
case IW_AUTH_DROP_UNENCRYPTED:
ieee->drop_unencrypted = data->value;
break;
case IW_AUTH_80211_AUTH_ALG:
if (data->value & IW_AUTH_ALG_SHARED_KEY) {
ieee->open_wep = 0;
ieee->auth_mode = 1;
} else if (data->value & IW_AUTH_ALG_OPEN_SYSTEM) {
ieee->open_wep = 1;
ieee->auth_mode = 0;
} else if (data->value & IW_AUTH_ALG_LEAP) {
ieee->open_wep = 1;
ieee->auth_mode = 2;
} else
return -EINVAL;
break;
case IW_AUTH_WPA_ENABLED:
ieee->wpa_enabled = (data->value) ? 1 : 0;
break;
case IW_AUTH_RX_UNENCRYPTED_EAPOL:
ieee->ieee802_1x = data->value;
break;
case IW_AUTH_PRIVACY_INVOKED:
ieee->privacy_invoked = data->value;
break;
default:
return -EOPNOTSUPP;
}
return 0;
}
EXPORT_SYMBOL(rtllib_wx_set_auth);
int rtllib_wx_set_gen_ie(struct rtllib_device *ieee, u8 *ie, size_t len)
{
u8 *buf;
u8 eid, wps_oui[4] = {0x0, 0x50, 0xf2, 0x04};
if (len > MAX_WPA_IE_LEN || (len && ie == NULL))
return -EINVAL;
if (len) {
eid = ie[0];
if ((eid == MFIE_TYPE_GENERIC) && (!memcmp(&ie[2],
wps_oui, 4))) {
ieee->wps_ie_len = (len < MAX_WZC_IE_LEN) ? (len) :
(MAX_WZC_IE_LEN);
buf = kmemdup(ie, ieee->wps_ie_len, GFP_KERNEL);
if (buf == NULL)
return -ENOMEM;
ieee->wps_ie = buf;
return 0;
}
}
ieee->wps_ie_len = 0;
kfree(ieee->wps_ie);
ieee->wps_ie = NULL;
if (len) {
if (len != ie[1]+2)
return -EINVAL;
buf = kmemdup(ie, len, GFP_KERNEL);
if (buf == NULL)
return -ENOMEM;
kfree(ieee->wpa_ie);
ieee->wpa_ie = buf;
ieee->wpa_ie_len = len;
} else {
kfree(ieee->wpa_ie);
ieee->wpa_ie = NULL;
ieee->wpa_ie_len = 0;
}
return 0;
}
EXPORT_SYMBOL(rtllib_wx_set_gen_ie);