linux/net/wireless/wext-compat.c
Johannes Berg 7b0a0e3c3a wifi: cfg80211: do some rework towards MLO link APIs
In order to support multi-link operation with multiple links,
start adding some APIs. The notable addition here is to have
the link ID in a new nl80211 attribute, that will be used to
differentiate the links in many nl80211 operations.

So far, this patch adds the netlink NL80211_ATTR_MLO_LINK_ID
attribute (as well as the NL80211_ATTR_MLO_LINKS attribute)
and plugs it through the system in some places, checking the
validity etc. along with other infrastructure needed for it.

For now, I've decided to include only the over-the-air link
ID in the API. I know we discussed that we eventually need to
have to have other ways of identifying a link, but for local
AP mode and auth/assoc commands as well as set_key etc. we'll
use the OTA ID.

Also included in this patch is some refactoring of the data
structures in struct wireless_dev, splitting for the first
time the data into type dependent pieces, to make reasoning
about these things easier.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-06-20 12:54:58 +02:00

1658 lines
42 KiB
C

// SPDX-License-Identifier: GPL-2.0
/*
* 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>
* Copyright (C) 2019-2022 Intel Corporation
*/
#include <linux/export.h>
#include <linux/wireless.h>
#include <linux/nl80211.h>
#include <linux/if_arp.h>
#include <linux/etherdevice.h>
#include <linux/slab.h>
#include <net/iw_handler.h>
#include <net/cfg80211.h>
#include <net/cfg80211-wext.h>
#include "wext-compat.h"
#include "core.h"
#include "rdev-ops.h"
int cfg80211_wext_giwname(struct net_device *dev,
struct iw_request_info *info,
char *name, char *extra)
{
strcpy(name, "IEEE 802.11");
return 0;
}
EXPORT_WEXT_HANDLER(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;
rdev = wiphy_to_rdev(wdev->wiphy);
switch (*mode) {
case IW_MODE_INFRA:
type = NL80211_IFTYPE_STATION;
break;
case IW_MODE_ADHOC:
type = NL80211_IFTYPE_ADHOC;
break;
case IW_MODE_MONITOR:
type = NL80211_IFTYPE_MONITOR;
break;
default:
return -EINVAL;
}
if (type == wdev->iftype)
return 0;
memset(&vifparams, 0, sizeof(vifparams));
wiphy_lock(wdev->wiphy);
ret = cfg80211_change_iface(rdev, dev, type, &vifparams);
wiphy_unlock(wdev->wiphy);
return ret;
}
EXPORT_WEXT_HANDLER(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_WEXT_HANDLER(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 nl80211_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 = (u8)-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 < NUM_NL80211_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_WEXT_HANDLER(cfg80211_wext_giwrange);
/**
* cfg80211_wext_freq - get wext frequency for non-"auto"
* @freq: the wext freq encoding
*
* Returns a frequency, or a negative error code, or 0 for auto.
*/
int cfg80211_wext_freq(struct iw_freq *freq)
{
/*
* Parse frequency - return 0 for auto and
* -EINVAL for impossible things.
*/
if (freq->e == 0) {
enum nl80211_band band = NL80211_BAND_2GHZ;
if (freq->m < 0)
return 0;
if (freq->m > 14)
band = NL80211_BAND_5GHZ;
return ieee80211_channel_to_frequency(freq->m, band);
} else {
int i, div = 1000000;
for (i = 0; i < freq->e; i++)
div /= 10;
if (div <= 0)
return -EINVAL;
return freq->m / div;
}
}
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_rdev(wdev->wiphy);
u32 orts = wdev->wiphy->rts_threshold;
int err;
wiphy_lock(&rdev->wiphy);
if (rts->disabled || !rts->fixed) {
wdev->wiphy->rts_threshold = (u32) -1;
} else if (rts->value < 0) {
err = -EINVAL;
goto out;
} else {
wdev->wiphy->rts_threshold = rts->value;
}
err = rdev_set_wiphy_params(rdev, WIPHY_PARAM_RTS_THRESHOLD);
if (err)
wdev->wiphy->rts_threshold = orts;
out:
wiphy_unlock(&rdev->wiphy);
return err;
}
EXPORT_WEXT_HANDLER(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_WEXT_HANDLER(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_rdev(wdev->wiphy);
u32 ofrag = wdev->wiphy->frag_threshold;
int err;
wiphy_lock(&rdev->wiphy);
if (frag->disabled || !frag->fixed) {
wdev->wiphy->frag_threshold = (u32) -1;
} else if (frag->value < 256) {
err = -EINVAL;
goto out;
} else {
/* Fragment length must be even, so strip LSB. */
wdev->wiphy->frag_threshold = frag->value & ~0x1;
}
err = rdev_set_wiphy_params(rdev, WIPHY_PARAM_FRAG_THRESHOLD);
if (err)
wdev->wiphy->frag_threshold = ofrag;
out:
wiphy_unlock(&rdev->wiphy);
return err;
}
EXPORT_WEXT_HANDLER(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_WEXT_HANDLER(cfg80211_wext_giwfrag);
static 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_rdev(wdev->wiphy);
u32 changed = 0;
u8 olong = wdev->wiphy->retry_long;
u8 oshort = wdev->wiphy->retry_short;
int err;
if (retry->disabled || retry->value < 1 || retry->value > 255 ||
(retry->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT)
return -EINVAL;
wiphy_lock(&rdev->wiphy);
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;
}
err = rdev_set_wiphy_params(rdev, changed);
if (err) {
wdev->wiphy->retry_short = oshort;
wdev->wiphy->retry_long = olong;
}
wiphy_unlock(&rdev->wiphy);
return err;
}
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 | IW_RETRY_SHORT;
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_WEXT_HANDLER(cfg80211_wext_giwretry);
static int __cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
struct net_device *dev, bool pairwise,
const u8 *addr, bool remove, bool tx_key,
int idx, struct key_params *params)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
int err, i;
bool rejoin = false;
if (wdev->valid_links)
return -EINVAL;
if (pairwise && !addr)
return -EINVAL;
/*
* In many cases we won't actually need this, but it's better
* to do it first in case the allocation fails. Don't use wext.
*/
if (!wdev->wext.keys) {
wdev->wext.keys = kzalloc(sizeof(*wdev->wext.keys),
GFP_KERNEL);
if (!wdev->wext.keys)
return -ENOMEM;
for (i = 0; i < CFG80211_MAX_WEP_KEYS; 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->connected)
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->connected ||
(wdev->iftype == NL80211_IFTYPE_ADHOC &&
wdev->u.ibss.current_bss)) {
/*
* If removing the current TX key, we will need to
* join a new IBSS without the privacy bit clear.
*/
if (idx == wdev->wext.default_key &&
wdev->iftype == NL80211_IFTYPE_ADHOC) {
__cfg80211_leave_ibss(rdev, wdev->netdev, true);
rejoin = true;
}
if (!pairwise && addr &&
!(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
err = -ENOENT;
else
err = rdev_del_key(rdev, dev, idx, pairwise,
addr);
}
wdev->wext.connect.privacy = false;
/*
* Applications using wireless extensions expect to be
* able to delete keys that don't exist, so allow that.
*/
if (err == -ENOENT)
err = 0;
if (!err) {
if (!addr && idx < 4) {
memset(wdev->wext.keys->data[idx], 0,
sizeof(wdev->wext.keys->data[idx]));
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;
}
if (!err && rejoin)
err = cfg80211_ibss_wext_join(rdev, wdev);
return err;
}
if (addr)
tx_key = false;
if (cfg80211_validate_key_settings(rdev, params, idx, pairwise, addr))
return -EINVAL;
err = 0;
if (wdev->connected ||
(wdev->iftype == NL80211_IFTYPE_ADHOC &&
wdev->u.ibss.current_bss))
err = rdev_add_key(rdev, dev, idx, pairwise, addr, params);
else if (params->cipher != WLAN_CIPHER_SUITE_WEP40 &&
params->cipher != WLAN_CIPHER_SUITE_WEP104)
return -EINVAL;
if (err)
return err;
/*
* We only need to store WEP keys, since they're the only keys that
* can be set before a connection is established and persist after
* disconnecting.
*/
if (!addr && (params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
params->cipher == WLAN_CIPHER_SUITE_WEP104)) {
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->connected ||
(wdev->iftype == NL80211_IFTYPE_ADHOC &&
wdev->u.ibss.current_bss)) {
/*
* If we are getting a new TX key from not having
* had one before we need to join a new IBSS with
* the privacy bit set.
*/
if (wdev->iftype == NL80211_IFTYPE_ADHOC &&
wdev->wext.default_key == -1) {
__cfg80211_leave_ibss(rdev, wdev->netdev, true);
rejoin = true;
}
err = rdev_set_default_key(rdev, dev, idx, true, true);
}
if (!err) {
wdev->wext.default_key = idx;
if (rejoin)
err = cfg80211_ibss_wext_join(rdev, wdev);
}
return err;
}
if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC &&
(tx_key || (!addr && wdev->wext.default_mgmt_key == -1))) {
if (wdev->connected ||
(wdev->iftype == NL80211_IFTYPE_ADHOC &&
wdev->u.ibss.current_bss))
err = rdev_set_default_mgmt_key(rdev, 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, bool pairwise,
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, pairwise, addr,
remove, tx_key, idx, params);
wdev_unlock(dev->ieee80211_ptr);
return err;
}
static 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_rdev(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;
wiphy_lock(&rdev->wiphy);
if (wdev->valid_links) {
err = -EOPNOTSUPP;
goto out;
}
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) {
err = -EINVAL;
goto out;
} 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->connected ||
(wdev->iftype == NL80211_IFTYPE_ADHOC &&
wdev->u.ibss.current_bss))
err = rdev_set_default_key(rdev, dev, idx, true,
true);
if (!err)
wdev->wext.default_key = idx;
wdev_unlock(wdev);
goto out;
}
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) {
err = -EINVAL;
goto out;
}
err = cfg80211_set_encryption(rdev, dev, false, NULL, remove,
wdev->wext.default_key == -1,
idx, &params);
out:
wiphy_unlock(&rdev->wiphy);
return err;
}
static 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_rdev(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;
int ret;
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;
}
wiphy_lock(wdev->wiphy);
ret = cfg80211_set_encryption(
rdev, dev,
!(ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY),
addr, remove,
ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY,
idx, &params);
wiphy_unlock(wdev->wiphy);
return ret;
}
static 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;
}
static int cfg80211_wext_siwfreq(struct net_device *dev,
struct iw_request_info *info,
struct iw_freq *wextfreq, char *extra)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
struct cfg80211_chan_def chandef = {
.width = NL80211_CHAN_WIDTH_20_NOHT,
};
int freq, ret;
wiphy_lock(&rdev->wiphy);
switch (wdev->iftype) {
case NL80211_IFTYPE_STATION:
ret = cfg80211_mgd_wext_siwfreq(dev, info, wextfreq, extra);
break;
case NL80211_IFTYPE_ADHOC:
ret = cfg80211_ibss_wext_siwfreq(dev, info, wextfreq, extra);
break;
case NL80211_IFTYPE_MONITOR:
freq = cfg80211_wext_freq(wextfreq);
if (freq < 0) {
ret = freq;
break;
}
if (freq == 0) {
ret = -EINVAL;
break;
}
chandef.center_freq1 = freq;
chandef.chan = ieee80211_get_channel(&rdev->wiphy, freq);
if (!chandef.chan) {
ret = -EINVAL;
break;
}
ret = cfg80211_set_monitor_channel(rdev, &chandef);
break;
case NL80211_IFTYPE_MESH_POINT:
freq = cfg80211_wext_freq(wextfreq);
if (freq < 0) {
ret = freq;
break;
}
if (freq == 0) {
ret = -EINVAL;
break;
}
chandef.center_freq1 = freq;
chandef.chan = ieee80211_get_channel(&rdev->wiphy, freq);
if (!chandef.chan) {
ret = -EINVAL;
break;
}
ret = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
break;
default:
ret = -EOPNOTSUPP;
break;
}
wiphy_unlock(&rdev->wiphy);
return ret;
}
static 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_rdev(wdev->wiphy);
struct cfg80211_chan_def chandef = {};
int ret;
wiphy_lock(&rdev->wiphy);
switch (wdev->iftype) {
case NL80211_IFTYPE_STATION:
ret = cfg80211_mgd_wext_giwfreq(dev, info, freq, extra);
break;
case NL80211_IFTYPE_ADHOC:
ret = cfg80211_ibss_wext_giwfreq(dev, info, freq, extra);
break;
case NL80211_IFTYPE_MONITOR:
if (!rdev->ops->get_channel) {
ret = -EINVAL;
break;
}
ret = rdev_get_channel(rdev, wdev, 0, &chandef);
if (ret)
break;
freq->m = chandef.chan->center_freq;
freq->e = 6;
ret = 0;
break;
default:
ret = -EINVAL;
break;
}
wiphy_unlock(&rdev->wiphy);
return ret;
}
static 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_rdev(wdev->wiphy);
enum nl80211_tx_power_setting type;
int dbm = 0;
int ret;
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->wiphy.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 = NL80211_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 = NL80211_TX_POWER_AUTOMATIC;
} else {
dbm = data->txpower.value;
type = NL80211_TX_POWER_LIMITED;
}
}
} else {
if (rfkill_set_sw_state(rdev->wiphy.rfkill, true))
schedule_work(&rdev->rfkill_block);
return 0;
}
wiphy_lock(&rdev->wiphy);
ret = rdev_set_tx_power(rdev, wdev, type, DBM_TO_MBM(dbm));
wiphy_unlock(&rdev->wiphy);
return ret;
}
static 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_rdev(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;
wiphy_lock(&rdev->wiphy);
err = rdev_get_tx_power(rdev, wdev, &val);
wiphy_unlock(&rdev->wiphy);
if (err)
return err;
/* well... oh well */
data->txpower.fixed = 1;
data->txpower.disabled = rfkill_blocked(rdev->wiphy.rfkill);
data->txpower.value = val;
data->txpower.flags = IW_TXPOW_DBM;
return 0;
}
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)
{
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)
{
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 if (cipher & IW_AUTH_CIPHER_NONE)
wdev->wext.connect.crypto.cipher_group = 0;
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;
}
static 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;
}
}
static 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;
}
static 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_rdev(wdev->wiphy);
bool ps;
int timeout = wdev->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;
}
wiphy_lock(&rdev->wiphy);
err = rdev_set_power_mgmt(rdev, dev, ps, timeout);
wiphy_unlock(&rdev->wiphy);
if (err)
return err;
wdev->ps = ps;
wdev->ps_timeout = timeout;
return 0;
}
static 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->ps;
return 0;
}
static 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_rdev(wdev->wiphy);
struct cfg80211_bitrate_mask mask;
u32 fixed, maxrate;
struct ieee80211_supported_band *sband;
int band, ridx, ret;
bool match = false;
if (!rdev->ops->set_bitrate_mask)
return -EOPNOTSUPP;
memset(&mask, 0, sizeof(mask));
fixed = 0;
maxrate = (u32)-1;
if (rate->value < 0) {
/* nothing */
} else if (rate->fixed) {
fixed = rate->value / 100000;
} else {
maxrate = rate->value / 100000;
}
for (band = 0; band < NUM_NL80211_BANDS; band++) {
sband = wdev->wiphy->bands[band];
if (sband == NULL)
continue;
for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
struct ieee80211_rate *srate = &sband->bitrates[ridx];
if (fixed == srate->bitrate) {
mask.control[band].legacy = 1 << ridx;
match = true;
break;
}
if (srate->bitrate <= maxrate) {
mask.control[band].legacy |= 1 << ridx;
match = true;
}
}
}
if (!match)
return -EINVAL;
wiphy_lock(&rdev->wiphy);
if (dev->ieee80211_ptr->valid_links)
ret = -EOPNOTSUPP;
else
ret = rdev_set_bitrate_mask(rdev, dev, 0, NULL, &mask);
wiphy_unlock(&rdev->wiphy);
return ret;
}
static 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_rdev(wdev->wiphy);
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->valid_links && wdev->links[0].client.current_bss)
memcpy(addr, wdev->links[0].client.current_bss->pub.bssid,
ETH_ALEN);
else
err = -EOPNOTSUPP;
wdev_unlock(wdev);
if (err)
return err;
wiphy_lock(&rdev->wiphy);
err = rdev_get_station(rdev, dev, addr, &sinfo);
wiphy_unlock(&rdev->wiphy);
if (err)
return err;
if (!(sinfo.filled & BIT_ULL(NL80211_STA_INFO_TX_BITRATE))) {
err = -EOPNOTSUPP;
goto free;
}
rate->value = 100000 * cfg80211_calculate_bitrate(&sinfo.txrate);
free:
cfg80211_sinfo_release_content(&sinfo);
return err;
}
/* Get wireless statistics. Called by /proc/net/wireless and by SIOCGIWSTATS */
static struct iw_statistics *cfg80211_wireless_stats(struct net_device *dev)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct cfg80211_registered_device *rdev = wiphy_to_rdev(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];
int ret;
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->valid_links || !wdev->links[0].client.current_bss) {
wdev_unlock(wdev);
return NULL;
}
memcpy(bssid, wdev->links[0].client.current_bss->pub.bssid, ETH_ALEN);
wdev_unlock(wdev);
memset(&sinfo, 0, sizeof(sinfo));
wiphy_lock(&rdev->wiphy);
ret = rdev_get_station(rdev, dev, bssid, &sinfo);
wiphy_unlock(&rdev->wiphy);
if (ret)
return NULL;
memset(&wstats, 0, sizeof(wstats));
switch (rdev->wiphy.signal_type) {
case CFG80211_SIGNAL_TYPE_MBM:
if (sinfo.filled & BIT_ULL(NL80211_STA_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;
}
fallthrough;
case CFG80211_SIGNAL_TYPE_UNSPEC:
if (sinfo.filled & BIT_ULL(NL80211_STA_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;
}
fallthrough;
default:
wstats.qual.updated |= IW_QUAL_LEVEL_INVALID;
wstats.qual.updated |= IW_QUAL_QUAL_INVALID;
}
wstats.qual.updated |= IW_QUAL_NOISE_INVALID;
if (sinfo.filled & BIT_ULL(NL80211_STA_INFO_RX_DROP_MISC))
wstats.discard.misc = sinfo.rx_dropped_misc;
if (sinfo.filled & BIT_ULL(NL80211_STA_INFO_TX_FAILED))
wstats.discard.retries = sinfo.tx_failed;
cfg80211_sinfo_release_content(&sinfo);
return &wstats;
}
static 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;
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
int ret;
wiphy_lock(&rdev->wiphy);
switch (wdev->iftype) {
case NL80211_IFTYPE_ADHOC:
ret = cfg80211_ibss_wext_siwap(dev, info, ap_addr, extra);
break;
case NL80211_IFTYPE_STATION:
ret = cfg80211_mgd_wext_siwap(dev, info, ap_addr, extra);
break;
default:
ret = -EOPNOTSUPP;
break;
}
wiphy_unlock(&rdev->wiphy);
return ret;
}
static 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;
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
int ret;
wiphy_lock(&rdev->wiphy);
switch (wdev->iftype) {
case NL80211_IFTYPE_ADHOC:
ret = cfg80211_ibss_wext_giwap(dev, info, ap_addr, extra);
break;
case NL80211_IFTYPE_STATION:
ret = cfg80211_mgd_wext_giwap(dev, info, ap_addr, extra);
break;
default:
ret = -EOPNOTSUPP;
break;
}
wiphy_unlock(&rdev->wiphy);
return ret;
}
static 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;
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
int ret;
wiphy_lock(&rdev->wiphy);
switch (wdev->iftype) {
case NL80211_IFTYPE_ADHOC:
ret = cfg80211_ibss_wext_siwessid(dev, info, data, ssid);
break;
case NL80211_IFTYPE_STATION:
ret = cfg80211_mgd_wext_siwessid(dev, info, data, ssid);
break;
default:
ret = -EOPNOTSUPP;
break;
}
wiphy_unlock(&rdev->wiphy);
return ret;
}
static 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;
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
int ret;
data->flags = 0;
data->length = 0;
wiphy_lock(&rdev->wiphy);
switch (wdev->iftype) {
case NL80211_IFTYPE_ADHOC:
ret = cfg80211_ibss_wext_giwessid(dev, info, data, ssid);
break;
case NL80211_IFTYPE_STATION:
ret = cfg80211_mgd_wext_giwessid(dev, info, data, ssid);
break;
default:
ret = -EOPNOTSUPP;
break;
}
wiphy_unlock(&rdev->wiphy);
return ret;
}
static int cfg80211_wext_siwpmksa(struct net_device *dev,
struct iw_request_info *info,
struct iw_point *data, char *extra)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
struct cfg80211_pmksa cfg_pmksa;
struct iw_pmksa *pmksa = (struct iw_pmksa *)extra;
int ret;
memset(&cfg_pmksa, 0, sizeof(struct cfg80211_pmksa));
if (wdev->iftype != NL80211_IFTYPE_STATION)
return -EINVAL;
cfg_pmksa.bssid = pmksa->bssid.sa_data;
cfg_pmksa.pmkid = pmksa->pmkid;
wiphy_lock(&rdev->wiphy);
switch (pmksa->cmd) {
case IW_PMKSA_ADD:
if (!rdev->ops->set_pmksa) {
ret = -EOPNOTSUPP;
break;
}
ret = rdev_set_pmksa(rdev, dev, &cfg_pmksa);
break;
case IW_PMKSA_REMOVE:
if (!rdev->ops->del_pmksa) {
ret = -EOPNOTSUPP;
break;
}
ret = rdev_del_pmksa(rdev, dev, &cfg_pmksa);
break;
case IW_PMKSA_FLUSH:
if (!rdev->ops->flush_pmksa) {
ret = -EOPNOTSUPP;
break;
}
ret = rdev_flush_pmksa(rdev, dev);
break;
default:
ret = -EOPNOTSUPP;
break;
}
wiphy_unlock(&rdev->wiphy);
return ret;
}
#define DEFINE_WEXT_COMPAT_STUB(func, type) \
static int __ ## func(struct net_device *dev, \
struct iw_request_info *info, \
union iwreq_data *wrqu, \
char *extra) \
{ \
return func(dev, info, (type *)wrqu, extra); \
}
DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_giwname, char)
DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_siwfreq, struct iw_freq)
DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_giwfreq, struct iw_freq)
DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_siwmode, u32)
DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_giwmode, u32)
DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_giwrange, struct iw_point)
DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_siwap, struct sockaddr)
DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_giwap, struct sockaddr)
DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_siwmlme, struct iw_point)
DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_giwscan, struct iw_point)
DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_siwessid, struct iw_point)
DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_giwessid, struct iw_point)
DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_siwrate, struct iw_param)
DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_giwrate, struct iw_param)
DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_siwrts, struct iw_param)
DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_giwrts, struct iw_param)
DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_siwfrag, struct iw_param)
DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_giwfrag, struct iw_param)
DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_siwretry, struct iw_param)
DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_giwretry, struct iw_param)
DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_siwencode, struct iw_point)
DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_giwencode, struct iw_point)
DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_giwpower, struct iw_param)
DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_siwpower, struct iw_param)
DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_siwgenie, struct iw_point)
DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_giwauth, struct iw_param)
DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_siwauth, struct iw_param)
DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_siwencodeext, struct iw_point)
DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_siwpmksa, struct iw_point)
static const iw_handler cfg80211_handlers[] = {
[IW_IOCTL_IDX(SIOCGIWNAME)] = __cfg80211_wext_giwname,
[IW_IOCTL_IDX(SIOCSIWFREQ)] = __cfg80211_wext_siwfreq,
[IW_IOCTL_IDX(SIOCGIWFREQ)] = __cfg80211_wext_giwfreq,
[IW_IOCTL_IDX(SIOCSIWMODE)] = __cfg80211_wext_siwmode,
[IW_IOCTL_IDX(SIOCGIWMODE)] = __cfg80211_wext_giwmode,
[IW_IOCTL_IDX(SIOCGIWRANGE)] = __cfg80211_wext_giwrange,
[IW_IOCTL_IDX(SIOCSIWAP)] = __cfg80211_wext_siwap,
[IW_IOCTL_IDX(SIOCGIWAP)] = __cfg80211_wext_giwap,
[IW_IOCTL_IDX(SIOCSIWMLME)] = __cfg80211_wext_siwmlme,
[IW_IOCTL_IDX(SIOCSIWSCAN)] = cfg80211_wext_siwscan,
[IW_IOCTL_IDX(SIOCGIWSCAN)] = __cfg80211_wext_giwscan,
[IW_IOCTL_IDX(SIOCSIWESSID)] = __cfg80211_wext_siwessid,
[IW_IOCTL_IDX(SIOCGIWESSID)] = __cfg80211_wext_giwessid,
[IW_IOCTL_IDX(SIOCSIWRATE)] = __cfg80211_wext_siwrate,
[IW_IOCTL_IDX(SIOCGIWRATE)] = __cfg80211_wext_giwrate,
[IW_IOCTL_IDX(SIOCSIWRTS)] = __cfg80211_wext_siwrts,
[IW_IOCTL_IDX(SIOCGIWRTS)] = __cfg80211_wext_giwrts,
[IW_IOCTL_IDX(SIOCSIWFRAG)] = __cfg80211_wext_siwfrag,
[IW_IOCTL_IDX(SIOCGIWFRAG)] = __cfg80211_wext_giwfrag,
[IW_IOCTL_IDX(SIOCSIWTXPOW)] = cfg80211_wext_siwtxpower,
[IW_IOCTL_IDX(SIOCGIWTXPOW)] = cfg80211_wext_giwtxpower,
[IW_IOCTL_IDX(SIOCSIWRETRY)] = __cfg80211_wext_siwretry,
[IW_IOCTL_IDX(SIOCGIWRETRY)] = __cfg80211_wext_giwretry,
[IW_IOCTL_IDX(SIOCSIWENCODE)] = __cfg80211_wext_siwencode,
[IW_IOCTL_IDX(SIOCGIWENCODE)] = __cfg80211_wext_giwencode,
[IW_IOCTL_IDX(SIOCSIWPOWER)] = __cfg80211_wext_siwpower,
[IW_IOCTL_IDX(SIOCGIWPOWER)] = __cfg80211_wext_giwpower,
[IW_IOCTL_IDX(SIOCSIWGENIE)] = __cfg80211_wext_siwgenie,
[IW_IOCTL_IDX(SIOCSIWAUTH)] = __cfg80211_wext_siwauth,
[IW_IOCTL_IDX(SIOCGIWAUTH)] = __cfg80211_wext_giwauth,
[IW_IOCTL_IDX(SIOCSIWENCODEEXT)]= __cfg80211_wext_siwencodeext,
[IW_IOCTL_IDX(SIOCSIWPMKSA)] = __cfg80211_wext_siwpmksa,
};
const struct iw_handler_def cfg80211_wext_handler = {
.num_standard = ARRAY_SIZE(cfg80211_handlers),
.standard = cfg80211_handlers,
.get_wireless_stats = cfg80211_wireless_stats,
};