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OpenCloudOS-Kernel/net/wireless/wext-compat.c

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/*
* cfg80211 - wext compat code
*
* This is temporary code until all wireless functionality is migrated
* into cfg80211, when that happens all the exports here go away and
* we directly assign the wireless handlers of wireless interfaces.
*
* Copyright 2008-2009 Johannes Berg <johannes@sipsolutions.net>
*/
#include <linux/wireless.h>
#include <linux/nl80211.h>
#include <linux/if_arp.h>
#include <linux/etherdevice.h>
#include <net/iw_handler.h>
#include <net/cfg80211.h>
#include "wext-compat.h"
#include "core.h"
int cfg80211_wext_giwname(struct net_device *dev,
struct iw_request_info *info,
char *name, char *extra)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct ieee80211_supported_band *sband;
bool is_ht = false, is_a = false, is_b = false, is_g = false;
if (!wdev)
return -EOPNOTSUPP;
sband = wdev->wiphy->bands[IEEE80211_BAND_5GHZ];
if (sband) {
is_a = true;
is_ht |= sband->ht_cap.ht_supported;
}
sband = wdev->wiphy->bands[IEEE80211_BAND_2GHZ];
if (sband) {
int i;
/* Check for mandatory rates */
for (i = 0; i < sband->n_bitrates; i++) {
if (sband->bitrates[i].bitrate == 10)
is_b = true;
if (sband->bitrates[i].bitrate == 60)
is_g = true;
}
is_ht |= sband->ht_cap.ht_supported;
}
strcpy(name, "IEEE 802.11");
if (is_a)
strcat(name, "a");
if (is_b)
strcat(name, "b");
if (is_g)
strcat(name, "g");
if (is_ht)
strcat(name, "n");
return 0;
}
EXPORT_SYMBOL_GPL(cfg80211_wext_giwname);
int cfg80211_wext_siwmode(struct net_device *dev, struct iw_request_info *info,
u32 *mode, char *extra)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct cfg80211_registered_device *rdev;
struct vif_params vifparams;
enum nl80211_iftype type;
int ret;
if (!wdev)
return -EOPNOTSUPP;
rdev = wiphy_to_dev(wdev->wiphy);
if (!rdev->ops->change_virtual_intf)
return -EOPNOTSUPP;
/* don't support changing VLANs, you just re-create them */
if (wdev->iftype == NL80211_IFTYPE_AP_VLAN)
return -EOPNOTSUPP;
switch (*mode) {
case IW_MODE_INFRA:
type = NL80211_IFTYPE_STATION;
break;
case IW_MODE_ADHOC:
type = NL80211_IFTYPE_ADHOC;
break;
case IW_MODE_REPEAT:
type = NL80211_IFTYPE_WDS;
break;
case IW_MODE_MONITOR:
type = NL80211_IFTYPE_MONITOR;
break;
default:
return -EINVAL;
}
if (type == wdev->iftype)
return 0;
memset(&vifparams, 0, sizeof(vifparams));
ret = rdev->ops->change_virtual_intf(wdev->wiphy, dev, type,
NULL, &vifparams);
WARN_ON(!ret && wdev->iftype != type);
return ret;
}
EXPORT_SYMBOL_GPL(cfg80211_wext_siwmode);
int cfg80211_wext_giwmode(struct net_device *dev, struct iw_request_info *info,
u32 *mode, char *extra)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
if (!wdev)
return -EOPNOTSUPP;
switch (wdev->iftype) {
case NL80211_IFTYPE_AP:
*mode = IW_MODE_MASTER;
break;
case NL80211_IFTYPE_STATION:
*mode = IW_MODE_INFRA;
break;
case NL80211_IFTYPE_ADHOC:
*mode = IW_MODE_ADHOC;
break;
case NL80211_IFTYPE_MONITOR:
*mode = IW_MODE_MONITOR;
break;
case NL80211_IFTYPE_WDS:
*mode = IW_MODE_REPEAT;
break;
case NL80211_IFTYPE_AP_VLAN:
*mode = IW_MODE_SECOND; /* FIXME */
break;
default:
*mode = IW_MODE_AUTO;
break;
}
return 0;
}
EXPORT_SYMBOL_GPL(cfg80211_wext_giwmode);
int cfg80211_wext_giwrange(struct net_device *dev,
struct iw_request_info *info,
struct iw_point *data, char *extra)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct iw_range *range = (struct iw_range *) extra;
enum ieee80211_band band;
int i, c = 0;
if (!wdev)
return -EOPNOTSUPP;
data->length = sizeof(struct iw_range);
memset(range, 0, sizeof(struct iw_range));
range->we_version_compiled = WIRELESS_EXT;
range->we_version_source = 21;
range->retry_capa = IW_RETRY_LIMIT;
range->retry_flags = IW_RETRY_LIMIT;
range->min_retry = 0;
range->max_retry = 255;
range->min_rts = 0;
range->max_rts = 2347;
range->min_frag = 256;
range->max_frag = 2346;
range->max_encoding_tokens = 4;
range->max_qual.updated = IW_QUAL_NOISE_INVALID;
switch (wdev->wiphy->signal_type) {
case CFG80211_SIGNAL_TYPE_NONE:
break;
case CFG80211_SIGNAL_TYPE_MBM:
range->max_qual.level = -110;
range->max_qual.qual = 70;
range->avg_qual.qual = 35;
range->max_qual.updated |= IW_QUAL_DBM;
range->max_qual.updated |= IW_QUAL_QUAL_UPDATED;
range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED;
break;
case CFG80211_SIGNAL_TYPE_UNSPEC:
range->max_qual.level = 100;
range->max_qual.qual = 100;
range->avg_qual.qual = 50;
range->max_qual.updated |= IW_QUAL_QUAL_UPDATED;
range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED;
break;
}
range->avg_qual.level = range->max_qual.level / 2;
range->avg_qual.noise = range->max_qual.noise / 2;
range->avg_qual.updated = range->max_qual.updated;
for (i = 0; i < wdev->wiphy->n_cipher_suites; i++) {
switch (wdev->wiphy->cipher_suites[i]) {
case WLAN_CIPHER_SUITE_TKIP:
range->enc_capa |= (IW_ENC_CAPA_CIPHER_TKIP |
IW_ENC_CAPA_WPA);
break;
case WLAN_CIPHER_SUITE_CCMP:
range->enc_capa |= (IW_ENC_CAPA_CIPHER_CCMP |
IW_ENC_CAPA_WPA2);
break;
case WLAN_CIPHER_SUITE_WEP40:
range->encoding_size[range->num_encoding_sizes++] =
WLAN_KEY_LEN_WEP40;
break;
case WLAN_CIPHER_SUITE_WEP104:
range->encoding_size[range->num_encoding_sizes++] =
WLAN_KEY_LEN_WEP104;
break;
}
}
for (band = 0; band < IEEE80211_NUM_BANDS; band ++) {
struct ieee80211_supported_band *sband;
sband = wdev->wiphy->bands[band];
if (!sband)
continue;
for (i = 0; i < sband->n_channels && c < IW_MAX_FREQUENCIES; i++) {
struct ieee80211_channel *chan = &sband->channels[i];
if (!(chan->flags & IEEE80211_CHAN_DISABLED)) {
range->freq[c].i =
ieee80211_frequency_to_channel(
chan->center_freq);
range->freq[c].m = chan->center_freq;
range->freq[c].e = 6;
c++;
}
}
}
range->num_channels = c;
range->num_frequency = c;
IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
if (wdev->wiphy->max_scan_ssids > 0)
range->scan_capa |= IW_SCAN_CAPA_ESSID;
return 0;
}
EXPORT_SYMBOL_GPL(cfg80211_wext_giwrange);
/**
* cfg80211_wext_freq - get wext frequency for non-"auto"
* @wiphy: the wiphy
* @freq: the wext freq encoding
*
* Returns a channel, %NULL for auto, or an ERR_PTR for errors!
*/
struct ieee80211_channel *cfg80211_wext_freq(struct wiphy *wiphy,
struct iw_freq *freq)
{
struct ieee80211_channel *chan;
int f;
/*
* Parse frequency - return NULL for auto and
* -EINVAL for impossible things.
*/
if (freq->e == 0) {
if (freq->m < 0)
return NULL;
f = ieee80211_channel_to_frequency(freq->m);
} else {
int i, div = 1000000;
for (i = 0; i < freq->e; i++)
div /= 10;
if (div <= 0)
return ERR_PTR(-EINVAL);
f = freq->m / div;
}
/*
* Look up channel struct and return -EINVAL when
* it cannot be found.
*/
chan = ieee80211_get_channel(wiphy, f);
if (!chan)
return ERR_PTR(-EINVAL);
return chan;
}
int cfg80211_wext_siwrts(struct net_device *dev,
struct iw_request_info *info,
struct iw_param *rts, char *extra)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
u32 orts = wdev->wiphy->rts_threshold;
int err;
if (rts->disabled || !rts->fixed)
wdev->wiphy->rts_threshold = (u32) -1;
else if (rts->value < 0)
return -EINVAL;
else
wdev->wiphy->rts_threshold = rts->value;
err = rdev->ops->set_wiphy_params(wdev->wiphy,
WIPHY_PARAM_RTS_THRESHOLD);
if (err)
wdev->wiphy->rts_threshold = orts;
return err;
}
EXPORT_SYMBOL_GPL(cfg80211_wext_siwrts);
int cfg80211_wext_giwrts(struct net_device *dev,
struct iw_request_info *info,
struct iw_param *rts, char *extra)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
rts->value = wdev->wiphy->rts_threshold;
rts->disabled = rts->value == (u32) -1;
rts->fixed = 1;
return 0;
}
EXPORT_SYMBOL_GPL(cfg80211_wext_giwrts);
int cfg80211_wext_siwfrag(struct net_device *dev,
struct iw_request_info *info,
struct iw_param *frag, char *extra)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
u32 ofrag = wdev->wiphy->frag_threshold;
int err;
if (frag->disabled || !frag->fixed)
wdev->wiphy->frag_threshold = (u32) -1;
else if (frag->value < 256)
return -EINVAL;
else {
/* Fragment length must be even, so strip LSB. */
wdev->wiphy->frag_threshold = frag->value & ~0x1;
}
err = rdev->ops->set_wiphy_params(wdev->wiphy,
WIPHY_PARAM_FRAG_THRESHOLD);
if (err)
wdev->wiphy->frag_threshold = ofrag;
return err;
}
EXPORT_SYMBOL_GPL(cfg80211_wext_siwfrag);
int cfg80211_wext_giwfrag(struct net_device *dev,
struct iw_request_info *info,
struct iw_param *frag, char *extra)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
frag->value = wdev->wiphy->frag_threshold;
frag->disabled = frag->value == (u32) -1;
frag->fixed = 1;
return 0;
}
EXPORT_SYMBOL_GPL(cfg80211_wext_giwfrag);
int cfg80211_wext_siwretry(struct net_device *dev,
struct iw_request_info *info,
struct iw_param *retry, char *extra)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
u32 changed = 0;
u8 olong = wdev->wiphy->retry_long;
u8 oshort = wdev->wiphy->retry_short;
int err;
if (retry->disabled ||
(retry->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT)
return -EINVAL;
if (retry->flags & IW_RETRY_LONG) {
wdev->wiphy->retry_long = retry->value;
changed |= WIPHY_PARAM_RETRY_LONG;
} else if (retry->flags & IW_RETRY_SHORT) {
wdev->wiphy->retry_short = retry->value;
changed |= WIPHY_PARAM_RETRY_SHORT;
} else {
wdev->wiphy->retry_short = retry->value;
wdev->wiphy->retry_long = retry->value;
changed |= WIPHY_PARAM_RETRY_LONG;
changed |= WIPHY_PARAM_RETRY_SHORT;
}
if (!changed)
return 0;
err = rdev->ops->set_wiphy_params(wdev->wiphy, changed);
if (err) {
wdev->wiphy->retry_short = oshort;
wdev->wiphy->retry_long = olong;
}
return err;
}
EXPORT_SYMBOL_GPL(cfg80211_wext_siwretry);
int cfg80211_wext_giwretry(struct net_device *dev,
struct iw_request_info *info,
struct iw_param *retry, char *extra)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
retry->disabled = 0;
if (retry->flags == 0 || (retry->flags & IW_RETRY_SHORT)) {
/*
* First return short value, iwconfig will ask long value
* later if needed
*/
retry->flags |= IW_RETRY_LIMIT;
retry->value = wdev->wiphy->retry_short;
if (wdev->wiphy->retry_long != wdev->wiphy->retry_short)
retry->flags |= IW_RETRY_LONG;
return 0;
}
if (retry->flags & IW_RETRY_LONG) {
retry->flags = IW_RETRY_LIMIT | IW_RETRY_LONG;
retry->value = wdev->wiphy->retry_long;
}
return 0;
}
EXPORT_SYMBOL_GPL(cfg80211_wext_giwretry);
static int __cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
struct net_device *dev, const u8 *addr,
bool remove, bool tx_key, int idx,
struct key_params *params)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
int err, i;
if (!wdev->wext.keys) {
wdev->wext.keys = kzalloc(sizeof(*wdev->wext.keys),
GFP_KERNEL);
if (!wdev->wext.keys)
return -ENOMEM;
for (i = 0; i < 6; i++)
wdev->wext.keys->params[i].key =
wdev->wext.keys->data[i];
}
if (wdev->iftype != NL80211_IFTYPE_ADHOC &&
wdev->iftype != NL80211_IFTYPE_STATION)
return -EOPNOTSUPP;
if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC) {
if (!wdev->current_bss)
return -ENOLINK;
if (!rdev->ops->set_default_mgmt_key)
return -EOPNOTSUPP;
if (idx < 4 || idx > 5)
return -EINVAL;
} else if (idx < 0 || idx > 3)
return -EINVAL;
if (remove) {
err = 0;
if (wdev->current_bss)
err = rdev->ops->del_key(&rdev->wiphy, dev, idx, addr);
if (!err) {
if (!addr) {
wdev->wext.keys->params[idx].key_len = 0;
wdev->wext.keys->params[idx].cipher = 0;
}
if (idx == wdev->wext.default_key)
wdev->wext.default_key = -1;
else if (idx == wdev->wext.default_mgmt_key)
wdev->wext.default_mgmt_key = -1;
}
/*
* Applications using wireless extensions expect to be
* able to delete keys that don't exist, so allow that.
*/
if (err == -ENOENT)
return 0;
return err;
}
if (addr)
tx_key = false;
if (cfg80211_validate_key_settings(rdev, params, idx, addr))
return -EINVAL;
err = 0;
if (wdev->current_bss)
err = rdev->ops->add_key(&rdev->wiphy, dev, idx, addr, params);
if (err)
return err;
if (!addr) {
wdev->wext.keys->params[idx] = *params;
memcpy(wdev->wext.keys->data[idx],
params->key, params->key_len);
wdev->wext.keys->params[idx].key =
wdev->wext.keys->data[idx];
}
if ((params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
params->cipher == WLAN_CIPHER_SUITE_WEP104) &&
(tx_key || (!addr && wdev->wext.default_key == -1))) {
if (wdev->current_bss)
err = rdev->ops->set_default_key(&rdev->wiphy,
dev, idx);
if (!err)
wdev->wext.default_key = idx;
return err;
}
if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC &&
(tx_key || (!addr && wdev->wext.default_mgmt_key == -1))) {
if (wdev->current_bss)
err = rdev->ops->set_default_mgmt_key(&rdev->wiphy,
dev, idx);
if (!err)
wdev->wext.default_mgmt_key = idx;
return err;
}
return 0;
}
static int cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
struct net_device *dev, const u8 *addr,
bool remove, bool tx_key, int idx,
struct key_params *params)
{
int err;
wdev_lock(dev->ieee80211_ptr);
err = __cfg80211_set_encryption(rdev, dev, addr, remove,
tx_key, idx, params);
wdev_unlock(dev->ieee80211_ptr);
return err;
}
int cfg80211_wext_siwencode(struct net_device *dev,
struct iw_request_info *info,
struct iw_point *erq, char *keybuf)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
int idx, err;
bool remove = false;
struct key_params params;
if (wdev->iftype != NL80211_IFTYPE_STATION &&
wdev->iftype != NL80211_IFTYPE_ADHOC)
return -EOPNOTSUPP;
/* no use -- only MFP (set_default_mgmt_key) is optional */
if (!rdev->ops->del_key ||
!rdev->ops->add_key ||
!rdev->ops->set_default_key)
return -EOPNOTSUPP;
idx = erq->flags & IW_ENCODE_INDEX;
if (idx == 0) {
idx = wdev->wext.default_key;
if (idx < 0)
idx = 0;
} else if (idx < 1 || idx > 4)
return -EINVAL;
else
idx--;
if (erq->flags & IW_ENCODE_DISABLED)
remove = true;
else if (erq->length == 0) {
/* No key data - just set the default TX key index */
err = 0;
wdev_lock(wdev);
if (wdev->current_bss)
err = rdev->ops->set_default_key(&rdev->wiphy,
dev, idx);
if (!err)
wdev->wext.default_key = idx;
wdev_unlock(wdev);
return err;
}
memset(&params, 0, sizeof(params));
params.key = keybuf;
params.key_len = erq->length;
if (erq->length == 5)
params.cipher = WLAN_CIPHER_SUITE_WEP40;
else if (erq->length == 13)
params.cipher = WLAN_CIPHER_SUITE_WEP104;
else if (!remove)
return -EINVAL;
return cfg80211_set_encryption(rdev, dev, NULL, remove,
wdev->wext.default_key == -1,
idx, &params);
}
EXPORT_SYMBOL_GPL(cfg80211_wext_siwencode);
int cfg80211_wext_siwencodeext(struct net_device *dev,
struct iw_request_info *info,
struct iw_point *erq, char *extra)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
struct iw_encode_ext *ext = (struct iw_encode_ext *) extra;
const u8 *addr;
int idx;
bool remove = false;
struct key_params params;
u32 cipher;
if (wdev->iftype != NL80211_IFTYPE_STATION &&
wdev->iftype != NL80211_IFTYPE_ADHOC)
return -EOPNOTSUPP;
/* no use -- only MFP (set_default_mgmt_key) is optional */
if (!rdev->ops->del_key ||
!rdev->ops->add_key ||
!rdev->ops->set_default_key)
return -EOPNOTSUPP;
switch (ext->alg) {
case IW_ENCODE_ALG_NONE:
remove = true;
cipher = 0;
break;
case IW_ENCODE_ALG_WEP:
if (ext->key_len == 5)
cipher = WLAN_CIPHER_SUITE_WEP40;
else if (ext->key_len == 13)
cipher = WLAN_CIPHER_SUITE_WEP104;
else
return -EINVAL;
break;
case IW_ENCODE_ALG_TKIP:
cipher = WLAN_CIPHER_SUITE_TKIP;
break;
case IW_ENCODE_ALG_CCMP:
cipher = WLAN_CIPHER_SUITE_CCMP;
break;
case IW_ENCODE_ALG_AES_CMAC:
cipher = WLAN_CIPHER_SUITE_AES_CMAC;
break;
default:
return -EOPNOTSUPP;
}
if (erq->flags & IW_ENCODE_DISABLED)
remove = true;
idx = erq->flags & IW_ENCODE_INDEX;
if (cipher == WLAN_CIPHER_SUITE_AES_CMAC) {
if (idx < 4 || idx > 5) {
idx = wdev->wext.default_mgmt_key;
if (idx < 0)
return -EINVAL;
} else
idx--;
} else {
if (idx < 1 || idx > 4) {
idx = wdev->wext.default_key;
if (idx < 0)
return -EINVAL;
} else
idx--;
}
addr = ext->addr.sa_data;
if (is_broadcast_ether_addr(addr))
addr = NULL;
memset(&params, 0, sizeof(params));
params.key = ext->key;
params.key_len = ext->key_len;
params.cipher = cipher;
if (ext->ext_flags & IW_ENCODE_EXT_RX_SEQ_VALID) {
params.seq = ext->rx_seq;
params.seq_len = 6;
}
return cfg80211_set_encryption(
rdev, dev, addr, remove,
ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY,
idx, &params);
}
EXPORT_SYMBOL_GPL(cfg80211_wext_siwencodeext);
int cfg80211_wext_giwencode(struct net_device *dev,
struct iw_request_info *info,
struct iw_point *erq, char *keybuf)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
int idx;
if (wdev->iftype != NL80211_IFTYPE_STATION &&
wdev->iftype != NL80211_IFTYPE_ADHOC)
return -EOPNOTSUPP;
idx = erq->flags & IW_ENCODE_INDEX;
if (idx == 0) {
idx = wdev->wext.default_key;
if (idx < 0)
idx = 0;
} else if (idx < 1 || idx > 4)
return -EINVAL;
else
idx--;
erq->flags = idx + 1;
if (!wdev->wext.keys || !wdev->wext.keys->params[idx].cipher) {
erq->flags |= IW_ENCODE_DISABLED;
erq->length = 0;
return 0;
}
erq->length = min_t(size_t, erq->length,
wdev->wext.keys->params[idx].key_len);
memcpy(keybuf, wdev->wext.keys->params[idx].key, erq->length);
erq->flags |= IW_ENCODE_ENABLED;
return 0;
}
EXPORT_SYMBOL_GPL(cfg80211_wext_giwencode);
int cfg80211_wext_siwfreq(struct net_device *dev,
struct iw_request_info *info,
struct iw_freq *freq, char *extra)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
struct ieee80211_channel *chan;
int err;
switch (wdev->iftype) {
case NL80211_IFTYPE_STATION:
return cfg80211_mgd_wext_siwfreq(dev, info, freq, extra);
case NL80211_IFTYPE_ADHOC:
return cfg80211_ibss_wext_siwfreq(dev, info, freq, extra);
default:
chan = cfg80211_wext_freq(wdev->wiphy, freq);
if (!chan)
return -EINVAL;
if (IS_ERR(chan))
return PTR_ERR(chan);
err = rdev->ops->set_channel(wdev->wiphy, chan,
NL80211_CHAN_NO_HT);
if (err)
return err;
rdev->channel = chan;
return 0;
}
}
EXPORT_SYMBOL_GPL(cfg80211_wext_siwfreq);
int cfg80211_wext_giwfreq(struct net_device *dev,
struct iw_request_info *info,
struct iw_freq *freq, char *extra)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
switch (wdev->iftype) {
case NL80211_IFTYPE_STATION:
return cfg80211_mgd_wext_giwfreq(dev, info, freq, extra);
case NL80211_IFTYPE_ADHOC:
return cfg80211_ibss_wext_giwfreq(dev, info, freq, extra);
default:
if (!rdev->channel)
return -EINVAL;
freq->m = rdev->channel->center_freq;
freq->e = 6;
return 0;
}
}
EXPORT_SYMBOL_GPL(cfg80211_wext_giwfreq);
int cfg80211_wext_siwtxpower(struct net_device *dev,
struct iw_request_info *info,
union iwreq_data *data, char *extra)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
enum tx_power_setting type;
int dbm = 0;
if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
return -EINVAL;
if (data->txpower.flags & IW_TXPOW_RANGE)
return -EINVAL;
if (!rdev->ops->set_tx_power)
return -EOPNOTSUPP;
/* only change when not disabling */
if (!data->txpower.disabled) {
rfkill_set_sw_state(rdev->rfkill, false);
if (data->txpower.fixed) {
/*
* wext doesn't support negative values, see
* below where it's for automatic
*/
if (data->txpower.value < 0)
return -EINVAL;
dbm = data->txpower.value;
type = TX_POWER_FIXED;
/* TODO: do regulatory check! */
} else {
/*
* Automatic power level setting, max being the value
* passed in from userland.
*/
if (data->txpower.value < 0) {
type = TX_POWER_AUTOMATIC;
} else {
dbm = data->txpower.value;
type = TX_POWER_LIMITED;
}
}
} else {
rfkill_set_sw_state(rdev->rfkill, true);
schedule_work(&rdev->rfkill_sync);
return 0;
}
return rdev->ops->set_tx_power(wdev->wiphy, type, dbm);;
}
EXPORT_SYMBOL_GPL(cfg80211_wext_siwtxpower);
int cfg80211_wext_giwtxpower(struct net_device *dev,
struct iw_request_info *info,
union iwreq_data *data, char *extra)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
int err, val;
if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
return -EINVAL;
if (data->txpower.flags & IW_TXPOW_RANGE)
return -EINVAL;
if (!rdev->ops->get_tx_power)
return -EOPNOTSUPP;
err = rdev->ops->get_tx_power(wdev->wiphy, &val);
if (err)
return err;
/* well... oh well */
data->txpower.fixed = 1;
data->txpower.disabled = rfkill_blocked(rdev->rfkill);
data->txpower.value = val;
data->txpower.flags = IW_TXPOW_DBM;
return 0;
}
EXPORT_SYMBOL_GPL(cfg80211_wext_giwtxpower);
static int cfg80211_set_auth_alg(struct wireless_dev *wdev,
s32 auth_alg)
{
int nr_alg = 0;
if (!auth_alg)
return -EINVAL;
if (auth_alg & ~(IW_AUTH_ALG_OPEN_SYSTEM |
IW_AUTH_ALG_SHARED_KEY |
IW_AUTH_ALG_LEAP))
return -EINVAL;
if (auth_alg & IW_AUTH_ALG_OPEN_SYSTEM) {
nr_alg++;
wdev->wext.connect.auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
}
if (auth_alg & IW_AUTH_ALG_SHARED_KEY) {
nr_alg++;
wdev->wext.connect.auth_type = NL80211_AUTHTYPE_SHARED_KEY;
}
if (auth_alg & IW_AUTH_ALG_LEAP) {
nr_alg++;
wdev->wext.connect.auth_type = NL80211_AUTHTYPE_NETWORK_EAP;
}
if (nr_alg > 1)
wdev->wext.connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
return 0;
}
static int cfg80211_set_wpa_version(struct wireless_dev *wdev, u32 wpa_versions)
{
wdev->wext.connect.crypto.wpa_versions = 0;
if (wpa_versions & ~(IW_AUTH_WPA_VERSION_WPA |
IW_AUTH_WPA_VERSION_WPA2|
IW_AUTH_WPA_VERSION_DISABLED))
return -EINVAL;
if ((wpa_versions & IW_AUTH_WPA_VERSION_DISABLED) &&
(wpa_versions & (IW_AUTH_WPA_VERSION_WPA|
IW_AUTH_WPA_VERSION_WPA2)))
return -EINVAL;
if (wpa_versions & IW_AUTH_WPA_VERSION_DISABLED)
wdev->wext.connect.crypto.wpa_versions &=
~(NL80211_WPA_VERSION_1|NL80211_WPA_VERSION_2);
if (wpa_versions & IW_AUTH_WPA_VERSION_WPA)
wdev->wext.connect.crypto.wpa_versions |=
NL80211_WPA_VERSION_1;
if (wpa_versions & IW_AUTH_WPA_VERSION_WPA2)
wdev->wext.connect.crypto.wpa_versions |=
NL80211_WPA_VERSION_2;
return 0;
}
static int cfg80211_set_cipher_group(struct wireless_dev *wdev, u32 cipher)
{
wdev->wext.connect.crypto.cipher_group = 0;
if (cipher & IW_AUTH_CIPHER_WEP40)
wdev->wext.connect.crypto.cipher_group =
WLAN_CIPHER_SUITE_WEP40;
else if (cipher & IW_AUTH_CIPHER_WEP104)
wdev->wext.connect.crypto.cipher_group =
WLAN_CIPHER_SUITE_WEP104;
else if (cipher & IW_AUTH_CIPHER_TKIP)
wdev->wext.connect.crypto.cipher_group =
WLAN_CIPHER_SUITE_TKIP;
else if (cipher & IW_AUTH_CIPHER_CCMP)
wdev->wext.connect.crypto.cipher_group =
WLAN_CIPHER_SUITE_CCMP;
else if (cipher & IW_AUTH_CIPHER_AES_CMAC)
wdev->wext.connect.crypto.cipher_group =
WLAN_CIPHER_SUITE_AES_CMAC;
else
return -EINVAL;
return 0;
}
static int cfg80211_set_cipher_pairwise(struct wireless_dev *wdev, u32 cipher)
{
int nr_ciphers = 0;
u32 *ciphers_pairwise = wdev->wext.connect.crypto.ciphers_pairwise;
if (cipher & IW_AUTH_CIPHER_WEP40) {
ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP40;
nr_ciphers++;
}
if (cipher & IW_AUTH_CIPHER_WEP104) {
ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP104;
nr_ciphers++;
}
if (cipher & IW_AUTH_CIPHER_TKIP) {
ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_TKIP;
nr_ciphers++;
}
if (cipher & IW_AUTH_CIPHER_CCMP) {
ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_CCMP;
nr_ciphers++;
}
if (cipher & IW_AUTH_CIPHER_AES_CMAC) {
ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_AES_CMAC;
nr_ciphers++;
}
BUILD_BUG_ON(NL80211_MAX_NR_CIPHER_SUITES < 5);
wdev->wext.connect.crypto.n_ciphers_pairwise = nr_ciphers;
return 0;
}
static int cfg80211_set_key_mgt(struct wireless_dev *wdev, u32 key_mgt)
{
int nr_akm_suites = 0;
if (key_mgt & ~(IW_AUTH_KEY_MGMT_802_1X |
IW_AUTH_KEY_MGMT_PSK))
return -EINVAL;
if (key_mgt & IW_AUTH_KEY_MGMT_802_1X) {
wdev->wext.connect.crypto.akm_suites[nr_akm_suites] =
WLAN_AKM_SUITE_8021X;
nr_akm_suites++;
}
if (key_mgt & IW_AUTH_KEY_MGMT_PSK) {
wdev->wext.connect.crypto.akm_suites[nr_akm_suites] =
WLAN_AKM_SUITE_PSK;
nr_akm_suites++;
}
wdev->wext.connect.crypto.n_akm_suites = nr_akm_suites;
return 0;
}
int cfg80211_wext_siwauth(struct net_device *dev,
struct iw_request_info *info,
struct iw_param *data, char *extra)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
if (wdev->iftype != NL80211_IFTYPE_STATION)
return -EOPNOTSUPP;
switch (data->flags & IW_AUTH_INDEX) {
case IW_AUTH_PRIVACY_INVOKED:
wdev->wext.connect.privacy = data->value;
return 0;
case IW_AUTH_WPA_VERSION:
return cfg80211_set_wpa_version(wdev, data->value);
case IW_AUTH_CIPHER_GROUP:
return cfg80211_set_cipher_group(wdev, data->value);
case IW_AUTH_KEY_MGMT:
return cfg80211_set_key_mgt(wdev, data->value);
case IW_AUTH_CIPHER_PAIRWISE:
return cfg80211_set_cipher_pairwise(wdev, data->value);
case IW_AUTH_80211_AUTH_ALG:
return cfg80211_set_auth_alg(wdev, data->value);
case IW_AUTH_WPA_ENABLED:
case IW_AUTH_RX_UNENCRYPTED_EAPOL:
case IW_AUTH_DROP_UNENCRYPTED:
case IW_AUTH_MFP:
return 0;
default:
return -EOPNOTSUPP;
}
}
EXPORT_SYMBOL_GPL(cfg80211_wext_siwauth);
int cfg80211_wext_giwauth(struct net_device *dev,
struct iw_request_info *info,
struct iw_param *data, char *extra)
{
/* XXX: what do we need? */
return -EOPNOTSUPP;
}
EXPORT_SYMBOL_GPL(cfg80211_wext_giwauth);
int cfg80211_wext_siwpower(struct net_device *dev,
struct iw_request_info *info,
struct iw_param *wrq, char *extra)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
bool ps = wdev->wext.ps;
int timeout = wdev->wext.ps_timeout;
int err;
if (wdev->iftype != NL80211_IFTYPE_STATION)
return -EINVAL;
if (!rdev->ops->set_power_mgmt)
return -EOPNOTSUPP;
if (wrq->disabled) {
ps = false;
} else {
switch (wrq->flags & IW_POWER_MODE) {
case IW_POWER_ON: /* If not specified */
case IW_POWER_MODE: /* If set all mask */
case IW_POWER_ALL_R: /* If explicitely state all */
ps = true;
break;
default: /* Otherwise we ignore */
return -EINVAL;
}
if (wrq->flags & ~(IW_POWER_MODE | IW_POWER_TIMEOUT))
return -EINVAL;
if (wrq->flags & IW_POWER_TIMEOUT)
timeout = wrq->value / 1000;
}
err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, ps, timeout);
if (err)
return err;
wdev->wext.ps = ps;
wdev->wext.ps_timeout = timeout;
return 0;
}
EXPORT_SYMBOL_GPL(cfg80211_wext_siwpower);
int cfg80211_wext_giwpower(struct net_device *dev,
struct iw_request_info *info,
struct iw_param *wrq, char *extra)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
wrq->disabled = !wdev->wext.ps;
return 0;
}
EXPORT_SYMBOL_GPL(cfg80211_wext_giwpower);
static int cfg80211_wds_wext_siwap(struct net_device *dev,
struct iw_request_info *info,
struct sockaddr *addr, char *extra)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
int err;
if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS))
return -EINVAL;
if (addr->sa_family != ARPHRD_ETHER)
return -EINVAL;
if (netif_running(dev))
return -EBUSY;
if (!rdev->ops->set_wds_peer)
return -EOPNOTSUPP;
err = rdev->ops->set_wds_peer(wdev->wiphy, dev, (u8 *) &addr->sa_data);
if (err)
return err;
memcpy(&wdev->wext.bssid, (u8 *) &addr->sa_data, ETH_ALEN);
return 0;
}
static int cfg80211_wds_wext_giwap(struct net_device *dev,
struct iw_request_info *info,
struct sockaddr *addr, char *extra)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS))
return -EINVAL;
addr->sa_family = ARPHRD_ETHER;
memcpy(&addr->sa_data, wdev->wext.bssid, ETH_ALEN);
return 0;
}
int cfg80211_wext_siwrate(struct net_device *dev,
struct iw_request_info *info,
struct iw_param *rate, char *extra)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
struct cfg80211_bitrate_mask mask;
if (!rdev->ops->set_bitrate_mask)
return -EOPNOTSUPP;
mask.fixed = 0;
mask.maxrate = 0;
if (rate->value < 0) {
/* nothing */
} else if (rate->fixed) {
mask.fixed = rate->value / 1000; /* kbps */
} else {
mask.maxrate = rate->value / 1000; /* kbps */
}
return rdev->ops->set_bitrate_mask(wdev->wiphy, dev, NULL, &mask);
}
EXPORT_SYMBOL_GPL(cfg80211_wext_siwrate);
int cfg80211_wext_giwrate(struct net_device *dev,
struct iw_request_info *info,
struct iw_param *rate, char *extra)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
/* we are under RTNL - globally locked - so can use a static struct */
static struct station_info sinfo;
u8 addr[ETH_ALEN];
int err;
if (wdev->iftype != NL80211_IFTYPE_STATION)
return -EOPNOTSUPP;
if (!rdev->ops->get_station)
return -EOPNOTSUPP;
err = 0;
wdev_lock(wdev);
if (wdev->current_bss)
memcpy(addr, wdev->current_bss->pub.bssid, ETH_ALEN);
else
err = -EOPNOTSUPP;
wdev_unlock(wdev);
if (err)
return err;
err = rdev->ops->get_station(&rdev->wiphy, dev, addr, &sinfo);
if (err)
return err;
if (!(sinfo.filled & STATION_INFO_TX_BITRATE))
return -EOPNOTSUPP;
rate->value = 0;
if (!(sinfo.txrate.flags & RATE_INFO_FLAGS_MCS))
rate->value = 100000 * sinfo.txrate.legacy;
return 0;
}
EXPORT_SYMBOL_GPL(cfg80211_wext_giwrate);
/* Get wireless statistics. Called by /proc/net/wireless and by SIOCGIWSTATS */
struct iw_statistics *cfg80211_wireless_stats(struct net_device *dev)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
/* we are under RTNL - globally locked - so can use static structs */
static struct iw_statistics wstats;
static struct station_info sinfo;
u8 bssid[ETH_ALEN];
if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION)
return NULL;
if (!rdev->ops->get_station)
return NULL;
/* Grab BSSID of current BSS, if any */
wdev_lock(wdev);
if (!wdev->current_bss) {
wdev_unlock(wdev);
return NULL;
}
memcpy(bssid, wdev->current_bss->pub.bssid, ETH_ALEN);
wdev_unlock(wdev);
if (rdev->ops->get_station(&rdev->wiphy, dev, bssid, &sinfo))
return NULL;
memset(&wstats, 0, sizeof(wstats));
switch (rdev->wiphy.signal_type) {
case CFG80211_SIGNAL_TYPE_MBM:
if (sinfo.filled & STATION_INFO_SIGNAL) {
int sig = sinfo.signal;
wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED;
wstats.qual.updated |= IW_QUAL_QUAL_UPDATED;
wstats.qual.updated |= IW_QUAL_DBM;
wstats.qual.level = sig;
if (sig < -110)
sig = -110;
else if (sig > -40)
sig = -40;
wstats.qual.qual = sig + 110;
break;
}
case CFG80211_SIGNAL_TYPE_UNSPEC:
if (sinfo.filled & STATION_INFO_SIGNAL) {
wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED;
wstats.qual.updated |= IW_QUAL_QUAL_UPDATED;
wstats.qual.level = sinfo.signal;
wstats.qual.qual = sinfo.signal;
break;
}
default:
wstats.qual.updated |= IW_QUAL_LEVEL_INVALID;
wstats.qual.updated |= IW_QUAL_QUAL_INVALID;
}
wstats.qual.updated |= IW_QUAL_NOISE_INVALID;
return &wstats;
}
EXPORT_SYMBOL_GPL(cfg80211_wireless_stats);
int cfg80211_wext_siwap(struct net_device *dev,
struct iw_request_info *info,
struct sockaddr *ap_addr, char *extra)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
switch (wdev->iftype) {
case NL80211_IFTYPE_ADHOC:
return cfg80211_ibss_wext_siwap(dev, info, ap_addr, extra);
case NL80211_IFTYPE_STATION:
return cfg80211_mgd_wext_siwap(dev, info, ap_addr, extra);
case NL80211_IFTYPE_WDS:
return cfg80211_wds_wext_siwap(dev, info, ap_addr, extra);
default:
return -EOPNOTSUPP;
}
}
EXPORT_SYMBOL_GPL(cfg80211_wext_siwap);
int cfg80211_wext_giwap(struct net_device *dev,
struct iw_request_info *info,
struct sockaddr *ap_addr, char *extra)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
switch (wdev->iftype) {
case NL80211_IFTYPE_ADHOC:
return cfg80211_ibss_wext_giwap(dev, info, ap_addr, extra);
case NL80211_IFTYPE_STATION:
return cfg80211_mgd_wext_giwap(dev, info, ap_addr, extra);
case NL80211_IFTYPE_WDS:
return cfg80211_wds_wext_giwap(dev, info, ap_addr, extra);
default:
return -EOPNOTSUPP;
}
}
EXPORT_SYMBOL_GPL(cfg80211_wext_giwap);
int cfg80211_wext_siwessid(struct net_device *dev,
struct iw_request_info *info,
struct iw_point *data, char *ssid)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
switch (wdev->iftype) {
case NL80211_IFTYPE_ADHOC:
return cfg80211_ibss_wext_siwessid(dev, info, data, ssid);
case NL80211_IFTYPE_STATION:
return cfg80211_mgd_wext_siwessid(dev, info, data, ssid);
default:
return -EOPNOTSUPP;
}
}
EXPORT_SYMBOL_GPL(cfg80211_wext_siwessid);
int cfg80211_wext_giwessid(struct net_device *dev,
struct iw_request_info *info,
struct iw_point *data, char *ssid)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
switch (wdev->iftype) {
case NL80211_IFTYPE_ADHOC:
return cfg80211_ibss_wext_giwessid(dev, info, data, ssid);
case NL80211_IFTYPE_STATION:
return cfg80211_mgd_wext_giwessid(dev, info, data, ssid);
default:
return -EOPNOTSUPP;
}
}
EXPORT_SYMBOL_GPL(cfg80211_wext_giwessid);
static const iw_handler cfg80211_handlers[] = {
[IW_IOCTL_IDX(SIOCGIWNAME)] = (iw_handler) cfg80211_wext_giwname,
[IW_IOCTL_IDX(SIOCSIWFREQ)] = (iw_handler) cfg80211_wext_siwfreq,
[IW_IOCTL_IDX(SIOCGIWFREQ)] = (iw_handler) cfg80211_wext_giwfreq,
[IW_IOCTL_IDX(SIOCSIWMODE)] = (iw_handler) cfg80211_wext_siwmode,
[IW_IOCTL_IDX(SIOCGIWMODE)] = (iw_handler) cfg80211_wext_giwmode,
[IW_IOCTL_IDX(SIOCGIWRANGE)] = (iw_handler) cfg80211_wext_giwrange,
[IW_IOCTL_IDX(SIOCSIWAP)] = (iw_handler) cfg80211_wext_siwap,
[IW_IOCTL_IDX(SIOCGIWAP)] = (iw_handler) cfg80211_wext_giwap,
[IW_IOCTL_IDX(SIOCSIWMLME)] = (iw_handler) cfg80211_wext_siwmlme,
[IW_IOCTL_IDX(SIOCSIWSCAN)] = (iw_handler) cfg80211_wext_siwscan,
[IW_IOCTL_IDX(SIOCGIWSCAN)] = (iw_handler) cfg80211_wext_giwscan,
[IW_IOCTL_IDX(SIOCSIWESSID)] = (iw_handler) cfg80211_wext_siwessid,
[IW_IOCTL_IDX(SIOCGIWESSID)] = (iw_handler) cfg80211_wext_giwessid,
[IW_IOCTL_IDX(SIOCSIWRATE)] = (iw_handler) cfg80211_wext_siwrate,
[IW_IOCTL_IDX(SIOCGIWRATE)] = (iw_handler) cfg80211_wext_giwrate,
[IW_IOCTL_IDX(SIOCSIWRTS)] = (iw_handler) cfg80211_wext_siwrts,
[IW_IOCTL_IDX(SIOCGIWRTS)] = (iw_handler) cfg80211_wext_giwrts,
[IW_IOCTL_IDX(SIOCSIWFRAG)] = (iw_handler) cfg80211_wext_siwfrag,
[IW_IOCTL_IDX(SIOCGIWFRAG)] = (iw_handler) cfg80211_wext_giwfrag,
[IW_IOCTL_IDX(SIOCSIWTXPOW)] = (iw_handler) cfg80211_wext_siwtxpower,
[IW_IOCTL_IDX(SIOCGIWTXPOW)] = (iw_handler) cfg80211_wext_giwtxpower,
[IW_IOCTL_IDX(SIOCSIWRETRY)] = (iw_handler) cfg80211_wext_siwretry,
[IW_IOCTL_IDX(SIOCGIWRETRY)] = (iw_handler) cfg80211_wext_giwretry,
[IW_IOCTL_IDX(SIOCSIWENCODE)] = (iw_handler) cfg80211_wext_siwencode,
[IW_IOCTL_IDX(SIOCGIWENCODE)] = (iw_handler) cfg80211_wext_giwencode,
[IW_IOCTL_IDX(SIOCSIWPOWER)] = (iw_handler) cfg80211_wext_siwpower,
[IW_IOCTL_IDX(SIOCGIWPOWER)] = (iw_handler) cfg80211_wext_giwpower,
[IW_IOCTL_IDX(SIOCSIWGENIE)] = (iw_handler) cfg80211_wext_siwgenie,
[IW_IOCTL_IDX(SIOCSIWAUTH)] = (iw_handler) cfg80211_wext_siwauth,
[IW_IOCTL_IDX(SIOCGIWAUTH)] = (iw_handler) cfg80211_wext_giwauth,
[IW_IOCTL_IDX(SIOCSIWENCODEEXT)]= (iw_handler) cfg80211_wext_siwencodeext,
};
const struct iw_handler_def cfg80211_wext_handler = {
.num_standard = ARRAY_SIZE(cfg80211_handlers),
.standard = cfg80211_handlers,
.get_wireless_stats = cfg80211_wireless_stats,
};
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