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OpenCloudOS-Kernel/drivers/net/wireless/mwifiex/cfg80211.c

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/*
* Marvell Wireless LAN device driver: CFG80211
*
* Copyright (C) 2011, Marvell International Ltd.
*
* This software file (the "File") is distributed by Marvell International
* Ltd. under the terms of the GNU General Public License Version 2, June 1991
* (the "License"). You may use, redistribute and/or modify this File in
* accordance with the terms and conditions of the License, a copy of which
* is available by writing to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
* worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
*
* THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
* IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
* ARE EXPRESSLY DISCLAIMED. The License provides additional details about
* this warranty disclaimer.
*/
#include "cfg80211.h"
#include "main.h"
/*
* This function maps the nl802.11 channel type into driver channel type.
*
* The mapping is as follows -
* NL80211_CHAN_NO_HT -> NO_SEC_CHANNEL
* NL80211_CHAN_HT20 -> NO_SEC_CHANNEL
* NL80211_CHAN_HT40PLUS -> SEC_CHANNEL_ABOVE
* NL80211_CHAN_HT40MINUS -> SEC_CHANNEL_BELOW
* Others -> NO_SEC_CHANNEL
*/
static int
mwifiex_cfg80211_channel_type_to_mwifiex_channels(enum nl80211_channel_type
channel_type)
{
switch (channel_type) {
case NL80211_CHAN_NO_HT:
case NL80211_CHAN_HT20:
return NO_SEC_CHANNEL;
case NL80211_CHAN_HT40PLUS:
return SEC_CHANNEL_ABOVE;
case NL80211_CHAN_HT40MINUS:
return SEC_CHANNEL_BELOW;
default:
return NO_SEC_CHANNEL;
}
}
/*
* This function maps the driver channel type into nl802.11 channel type.
*
* The mapping is as follows -
* NO_SEC_CHANNEL -> NL80211_CHAN_HT20
* SEC_CHANNEL_ABOVE -> NL80211_CHAN_HT40PLUS
* SEC_CHANNEL_BELOW -> NL80211_CHAN_HT40MINUS
* Others -> NL80211_CHAN_HT20
*/
static enum nl80211_channel_type
mwifiex_channels_to_cfg80211_channel_type(int channel_type)
{
switch (channel_type) {
case NO_SEC_CHANNEL:
return NL80211_CHAN_HT20;
case SEC_CHANNEL_ABOVE:
return NL80211_CHAN_HT40PLUS;
case SEC_CHANNEL_BELOW:
return NL80211_CHAN_HT40MINUS;
default:
return NL80211_CHAN_HT20;
}
}
/*
* This function checks whether WEP is set.
*/
static int
mwifiex_is_alg_wep(u32 cipher)
{
switch (cipher) {
case WLAN_CIPHER_SUITE_WEP40:
case WLAN_CIPHER_SUITE_WEP104:
return 1;
default:
break;
}
return 0;
}
/*
* This function retrieves the private structure from kernel wiphy structure.
*/
static void *mwifiex_cfg80211_get_priv(struct wiphy *wiphy)
{
return (void *) (*(unsigned long *) wiphy_priv(wiphy));
}
/*
* CFG802.11 operation handler to delete a network key.
*/
static int
mwifiex_cfg80211_del_key(struct wiphy *wiphy, struct net_device *netdev,
u8 key_index, bool pairwise, const u8 *mac_addr)
{
struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
if (mwifiex_set_encode(priv, NULL, 0, key_index, 1)) {
wiphy_err(wiphy, "deleting the crypto keys\n");
return -EFAULT;
}
wiphy_dbg(wiphy, "info: crypto keys deleted\n");
return 0;
}
/*
* CFG802.11 operation handler to set Tx power.
*/
static int
mwifiex_cfg80211_set_tx_power(struct wiphy *wiphy,
enum nl80211_tx_power_setting type,
int dbm)
{
struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
struct mwifiex_power_cfg power_cfg;
if (type == NL80211_TX_POWER_FIXED) {
power_cfg.is_power_auto = 0;
power_cfg.power_level = dbm;
} else {
power_cfg.is_power_auto = 1;
}
return mwifiex_set_tx_power(priv, &power_cfg);
}
/*
* CFG802.11 operation handler to set Power Save option.
*
* The timeout value, if provided, is currently ignored.
*/
static int
mwifiex_cfg80211_set_power_mgmt(struct wiphy *wiphy,
struct net_device *dev,
bool enabled, int timeout)
{
struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
u32 ps_mode;
if (timeout)
wiphy_dbg(wiphy,
"info: ignoring the timeout value"
" for IEEE power save\n");
ps_mode = enabled;
return mwifiex_drv_set_power(priv, &ps_mode);
}
/*
* CFG802.11 operation handler to set the default network key.
*/
static int
mwifiex_cfg80211_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
u8 key_index, bool unicast,
bool multicast)
{
struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
/* Return if WEP key not configured */
if (priv->sec_info.wep_status == MWIFIEX_802_11_WEP_DISABLED)
return 0;
if (mwifiex_set_encode(priv, NULL, 0, key_index, 0)) {
wiphy_err(wiphy, "set default Tx key index\n");
return -EFAULT;
}
return 0;
}
/*
* CFG802.11 operation handler to add a network key.
*/
static int
mwifiex_cfg80211_add_key(struct wiphy *wiphy, struct net_device *netdev,
u8 key_index, bool pairwise, const u8 *mac_addr,
struct key_params *params)
{
struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
if (mwifiex_set_encode(priv, params->key, params->key_len,
key_index, 0)) {
wiphy_err(wiphy, "crypto keys added\n");
return -EFAULT;
}
return 0;
}
/*
* This function sends domain information to the firmware.
*
* The following information are passed to the firmware -
* - Country codes
* - Sub bands (first channel, number of channels, maximum Tx power)
*/
static int mwifiex_send_domain_info_cmd_fw(struct wiphy *wiphy)
{
u8 no_of_triplet = 0;
struct ieee80211_country_ie_triplet *t;
u8 no_of_parsed_chan = 0;
u8 first_chan = 0, next_chan = 0, max_pwr = 0;
u8 i, flag = 0;
enum ieee80211_band band;
struct ieee80211_supported_band *sband;
struct ieee80211_channel *ch;
struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
struct mwifiex_adapter *adapter = priv->adapter;
struct mwifiex_802_11d_domain_reg *domain_info = &adapter->domain_reg;
/* Set country code */
domain_info->country_code[0] = priv->country_code[0];
domain_info->country_code[1] = priv->country_code[1];
domain_info->country_code[2] = ' ';
band = mwifiex_band_to_radio_type(adapter->config_bands);
if (!wiphy->bands[band]) {
wiphy_err(wiphy, "11D: setting domain info in FW\n");
return -1;
}
sband = wiphy->bands[band];
for (i = 0; i < sband->n_channels ; i++) {
ch = &sband->channels[i];
if (ch->flags & IEEE80211_CHAN_DISABLED)
continue;
if (!flag) {
flag = 1;
first_chan = (u32) ch->hw_value;
next_chan = first_chan;
max_pwr = ch->max_power;
no_of_parsed_chan = 1;
continue;
}
if (ch->hw_value == next_chan + 1 &&
ch->max_power == max_pwr) {
next_chan++;
no_of_parsed_chan++;
} else {
t = &domain_info->triplet[no_of_triplet];
t->chans.first_channel = first_chan;
t->chans.num_channels = no_of_parsed_chan;
t->chans.max_power = max_pwr;
no_of_triplet++;
first_chan = (u32) ch->hw_value;
next_chan = first_chan;
max_pwr = ch->max_power;
no_of_parsed_chan = 1;
}
}
if (flag) {
t = &domain_info->triplet[no_of_triplet];
t->chans.first_channel = first_chan;
t->chans.num_channels = no_of_parsed_chan;
t->chans.max_power = max_pwr;
no_of_triplet++;
}
domain_info->no_of_triplet = no_of_triplet;
if (mwifiex_send_cmd_async(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
HostCmd_ACT_GEN_SET, 0, NULL)) {
wiphy_err(wiphy, "11D: setting domain info in FW\n");
return -1;
}
return 0;
}
/*
* CFG802.11 regulatory domain callback function.
*
* This function is called when the regulatory domain is changed due to the
* following reasons -
* - Set by driver
* - Set by system core
* - Set by user
* - Set bt Country IE
*/
static int mwifiex_reg_notifier(struct wiphy *wiphy,
struct regulatory_request *request)
{
struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
wiphy_dbg(wiphy, "info: cfg80211 regulatory domain callback for domain"
" %c%c\n", request->alpha2[0], request->alpha2[1]);
memcpy(priv->country_code, request->alpha2, sizeof(request->alpha2));
switch (request->initiator) {
case NL80211_REGDOM_SET_BY_DRIVER:
case NL80211_REGDOM_SET_BY_CORE:
case NL80211_REGDOM_SET_BY_USER:
break;
/* Todo: apply driver specific changes in channel flags based
on the request initiator if necessary. */
case NL80211_REGDOM_SET_BY_COUNTRY_IE:
break;
}
mwifiex_send_domain_info_cmd_fw(wiphy);
return 0;
}
/*
* This function sets the RF channel.
*
* This function creates multiple IOCTL requests, populates them accordingly
* and issues them to set the band/channel and frequency.
*/
static int
mwifiex_set_rf_channel(struct mwifiex_private *priv,
struct ieee80211_channel *chan,
enum nl80211_channel_type channel_type)
{
struct mwifiex_chan_freq_power cfp;
struct mwifiex_ds_band_cfg band_cfg;
u32 config_bands = 0;
struct wiphy *wiphy = priv->wdev->wiphy;
if (chan) {
memset(&band_cfg, 0, sizeof(band_cfg));
/* Set appropriate bands */
if (chan->band == IEEE80211_BAND_2GHZ)
config_bands = BAND_B | BAND_G | BAND_GN;
else
config_bands = BAND_AN | BAND_A;
if (priv->bss_mode == NL80211_IFTYPE_STATION
|| priv->bss_mode == NL80211_IFTYPE_UNSPECIFIED) {
band_cfg.config_bands = config_bands;
} else if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
band_cfg.config_bands = config_bands;
band_cfg.adhoc_start_band = config_bands;
}
band_cfg.sec_chan_offset =
mwifiex_cfg80211_channel_type_to_mwifiex_channels
(channel_type);
if (mwifiex_set_radio_band_cfg(priv, &band_cfg))
return -EFAULT;
mwifiex_send_domain_info_cmd_fw(wiphy);
}
wiphy_dbg(wiphy, "info: setting band %d, channel offset %d and "
"mode %d\n", config_bands, band_cfg.sec_chan_offset,
priv->bss_mode);
if (!chan)
return 0;
memset(&cfp, 0, sizeof(cfp));
cfp.freq = chan->center_freq;
cfp.channel = ieee80211_frequency_to_channel(chan->center_freq);
if (mwifiex_bss_set_channel(priv, &cfp))
return -EFAULT;
return mwifiex_drv_change_adhoc_chan(priv, cfp.channel);
}
/*
* CFG802.11 operation handler to set channel.
*
* This function can only be used when station is not connected.
*/
static int
mwifiex_cfg80211_set_channel(struct wiphy *wiphy, struct net_device *dev,
struct ieee80211_channel *chan,
enum nl80211_channel_type channel_type)
{
struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
if (priv->media_connected) {
wiphy_err(wiphy, "This setting is valid only when station "
"is not connected\n");
return -EINVAL;
}
return mwifiex_set_rf_channel(priv, chan, channel_type);
}
/*
* This function sets the fragmentation threshold.
*
* The fragmentation threshold value must lie between MWIFIEX_FRAG_MIN_VALUE
* and MWIFIEX_FRAG_MAX_VALUE.
*/
static int
mwifiex_set_frag(struct mwifiex_private *priv, u32 frag_thr)
{
int ret;
if (frag_thr < MWIFIEX_FRAG_MIN_VALUE
|| frag_thr > MWIFIEX_FRAG_MAX_VALUE)
return -EINVAL;
/* Send request to firmware */
ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
HostCmd_ACT_GEN_SET, FRAG_THRESH_I,
&frag_thr);
return ret;
}
/*
* This function sets the RTS threshold.
* The rts value must lie between MWIFIEX_RTS_MIN_VALUE
* and MWIFIEX_RTS_MAX_VALUE.
*/
static int
mwifiex_set_rts(struct mwifiex_private *priv, u32 rts_thr)
{
if (rts_thr < MWIFIEX_RTS_MIN_VALUE || rts_thr > MWIFIEX_RTS_MAX_VALUE)
rts_thr = MWIFIEX_RTS_MAX_VALUE;
return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
HostCmd_ACT_GEN_SET, RTS_THRESH_I,
&rts_thr);
}
/*
* CFG802.11 operation handler to set wiphy parameters.
*
* This function can be used to set the RTS threshold and the
* Fragmentation threshold of the driver.
*/
static int
mwifiex_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
{
struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
int ret = 0;
if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
ret = mwifiex_set_rts(priv, wiphy->rts_threshold);
if (ret)
return ret;
}
if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
ret = mwifiex_set_frag(priv, wiphy->frag_threshold);
return ret;
}
/*
* CFG802.11 operation handler to change interface type.
*/
static int
mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy,
struct net_device *dev,
enum nl80211_iftype type, u32 *flags,
struct vif_params *params)
{
int ret;
struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
if (priv->bss_mode == type) {
wiphy_warn(wiphy, "already set to required type\n");
return 0;
}
priv->bss_mode = type;
switch (type) {
case NL80211_IFTYPE_ADHOC:
dev->ieee80211_ptr->iftype = NL80211_IFTYPE_ADHOC;
wiphy_dbg(wiphy, "info: setting interface type to adhoc\n");
break;
case NL80211_IFTYPE_STATION:
dev->ieee80211_ptr->iftype = NL80211_IFTYPE_STATION;
wiphy_dbg(wiphy, "info: setting interface type to managed\n");
break;
case NL80211_IFTYPE_UNSPECIFIED:
dev->ieee80211_ptr->iftype = NL80211_IFTYPE_STATION;
wiphy_dbg(wiphy, "info: setting interface type to auto\n");
return 0;
default:
wiphy_err(wiphy, "unknown interface type: %d\n", type);
return -EINVAL;
}
mwifiex_deauthenticate(priv, NULL);
priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM;
ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_SET_BSS_MODE,
HostCmd_ACT_GEN_SET, 0, NULL);
return ret;
}
/*
* This function dumps the station information on a buffer.
*
* The following information are shown -
* - Total bytes transmitted
* - Total bytes received
* - Total packets transmitted
* - Total packets received
* - Signal quality level
* - Transmission rate
*/
static int
mwifiex_dump_station_info(struct mwifiex_private *priv,
struct station_info *sinfo)
{
struct mwifiex_ds_get_signal signal;
struct mwifiex_rate_cfg rate;
int ret = 0;
sinfo->filled = STATION_INFO_RX_BYTES | STATION_INFO_TX_BYTES |
STATION_INFO_RX_PACKETS |
STATION_INFO_TX_PACKETS
| STATION_INFO_SIGNAL | STATION_INFO_TX_BITRATE;
/* Get signal information from the firmware */
memset(&signal, 0, sizeof(struct mwifiex_ds_get_signal));
if (mwifiex_get_signal_info(priv, &signal)) {
dev_err(priv->adapter->dev, "getting signal information\n");
ret = -EFAULT;
}
if (mwifiex_drv_get_data_rate(priv, &rate)) {
dev_err(priv->adapter->dev, "getting data rate\n");
ret = -EFAULT;
}
sinfo->rx_bytes = priv->stats.rx_bytes;
sinfo->tx_bytes = priv->stats.tx_bytes;
sinfo->rx_packets = priv->stats.rx_packets;
sinfo->tx_packets = priv->stats.tx_packets;
sinfo->signal = priv->w_stats.qual.level;
sinfo->txrate.legacy = rate.rate;
return ret;
}
/*
* CFG802.11 operation handler to get station information.
*
* This function only works in connected mode, and dumps the
* requested station information, if available.
*/
static int
mwifiex_cfg80211_get_station(struct wiphy *wiphy, struct net_device *dev,
u8 *mac, struct station_info *sinfo)
{
struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
mwifiex_dump_station_info(priv, sinfo);
if (!priv->media_connected)
return -ENOENT;
if (memcmp(mac, priv->cfg_bssid, ETH_ALEN))
return -ENOENT;
return mwifiex_dump_station_info(priv, sinfo);
}
/* Supported rates to be advertised to the cfg80211 */
static struct ieee80211_rate mwifiex_rates[] = {
{.bitrate = 10, .hw_value = 2, },
{.bitrate = 20, .hw_value = 4, },
{.bitrate = 55, .hw_value = 11, },
{.bitrate = 110, .hw_value = 22, },
{.bitrate = 220, .hw_value = 44, },
{.bitrate = 60, .hw_value = 12, },
{.bitrate = 90, .hw_value = 18, },
{.bitrate = 120, .hw_value = 24, },
{.bitrate = 180, .hw_value = 36, },
{.bitrate = 240, .hw_value = 48, },
{.bitrate = 360, .hw_value = 72, },
{.bitrate = 480, .hw_value = 96, },
{.bitrate = 540, .hw_value = 108, },
{.bitrate = 720, .hw_value = 144, },
};
/* Channel definitions to be advertised to cfg80211 */
static struct ieee80211_channel mwifiex_channels_2ghz[] = {
{.center_freq = 2412, .hw_value = 1, },
{.center_freq = 2417, .hw_value = 2, },
{.center_freq = 2422, .hw_value = 3, },
{.center_freq = 2427, .hw_value = 4, },
{.center_freq = 2432, .hw_value = 5, },
{.center_freq = 2437, .hw_value = 6, },
{.center_freq = 2442, .hw_value = 7, },
{.center_freq = 2447, .hw_value = 8, },
{.center_freq = 2452, .hw_value = 9, },
{.center_freq = 2457, .hw_value = 10, },
{.center_freq = 2462, .hw_value = 11, },
{.center_freq = 2467, .hw_value = 12, },
{.center_freq = 2472, .hw_value = 13, },
{.center_freq = 2484, .hw_value = 14, },
};
static struct ieee80211_supported_band mwifiex_band_2ghz = {
.channels = mwifiex_channels_2ghz,
.n_channels = ARRAY_SIZE(mwifiex_channels_2ghz),
.bitrates = mwifiex_rates,
.n_bitrates = 14,
};
static struct ieee80211_channel mwifiex_channels_5ghz[] = {
{.center_freq = 5040, .hw_value = 8, },
{.center_freq = 5060, .hw_value = 12, },
{.center_freq = 5080, .hw_value = 16, },
{.center_freq = 5170, .hw_value = 34, },
{.center_freq = 5190, .hw_value = 38, },
{.center_freq = 5210, .hw_value = 42, },
{.center_freq = 5230, .hw_value = 46, },
{.center_freq = 5180, .hw_value = 36, },
{.center_freq = 5200, .hw_value = 40, },
{.center_freq = 5220, .hw_value = 44, },
{.center_freq = 5240, .hw_value = 48, },
{.center_freq = 5260, .hw_value = 52, },
{.center_freq = 5280, .hw_value = 56, },
{.center_freq = 5300, .hw_value = 60, },
{.center_freq = 5320, .hw_value = 64, },
{.center_freq = 5500, .hw_value = 100, },
{.center_freq = 5520, .hw_value = 104, },
{.center_freq = 5540, .hw_value = 108, },
{.center_freq = 5560, .hw_value = 112, },
{.center_freq = 5580, .hw_value = 116, },
{.center_freq = 5600, .hw_value = 120, },
{.center_freq = 5620, .hw_value = 124, },
{.center_freq = 5640, .hw_value = 128, },
{.center_freq = 5660, .hw_value = 132, },
{.center_freq = 5680, .hw_value = 136, },
{.center_freq = 5700, .hw_value = 140, },
{.center_freq = 5745, .hw_value = 149, },
{.center_freq = 5765, .hw_value = 153, },
{.center_freq = 5785, .hw_value = 157, },
{.center_freq = 5805, .hw_value = 161, },
{.center_freq = 5825, .hw_value = 165, },
};
static struct ieee80211_supported_band mwifiex_band_5ghz = {
.channels = mwifiex_channels_5ghz,
.n_channels = ARRAY_SIZE(mwifiex_channels_5ghz),
.bitrates = mwifiex_rates - 4,
.n_bitrates = ARRAY_SIZE(mwifiex_rates) + 4,
};
/* Supported crypto cipher suits to be advertised to cfg80211 */
static const u32 mwifiex_cipher_suites[] = {
WLAN_CIPHER_SUITE_WEP40,
WLAN_CIPHER_SUITE_WEP104,
WLAN_CIPHER_SUITE_TKIP,
WLAN_CIPHER_SUITE_CCMP,
};
/*
* CFG802.11 operation handler for setting bit rates.
*
* Function selects legacy bang B/G/BG from corresponding bitrates selection.
* Currently only 2.4GHz band is supported.
*/
static int mwifiex_cfg80211_set_bitrate_mask(struct wiphy *wiphy,
struct net_device *dev,
const u8 *peer,
const struct cfg80211_bitrate_mask *mask)
{
struct mwifiex_ds_band_cfg band_cfg;
struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
int index = 0, mode = 0, i;
/* Currently only 2.4GHz is supported */
for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) {
/*
* Rates below 6 Mbps in the table are CCK rates; 802.11b
* and from 6 they are OFDM; 802.11G
*/
if (mwifiex_rates[i].bitrate == 60) {
index = 1 << i;
break;
}
}
if (mask->control[IEEE80211_BAND_2GHZ].legacy < index) {
mode = BAND_B;
} else {
mode = BAND_G;
if (mask->control[IEEE80211_BAND_2GHZ].legacy % index)
mode |= BAND_B;
}
memset(&band_cfg, 0, sizeof(band_cfg));
band_cfg.config_bands = mode;
if (priv->bss_mode == NL80211_IFTYPE_ADHOC)
band_cfg.adhoc_start_band = mode;
band_cfg.sec_chan_offset = NO_SEC_CHANNEL;
if (mwifiex_set_radio_band_cfg(priv, &band_cfg))
return -EFAULT;
wiphy_debug(wiphy, "info: device configured in 802.11%s%s mode\n",
(mode & BAND_B) ? "b" : "",
(mode & BAND_G) ? "g" : "");
return 0;
}
/*
* CFG802.11 operation handler for disconnection request.
*
* This function does not work when there is already a disconnection
* procedure going on.
*/
static int
mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev,
u16 reason_code)
{
struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
if (priv->disconnect)
return -EBUSY;
priv->disconnect = 1;
if (mwifiex_deauthenticate(priv, NULL))
return -EFAULT;
wiphy_dbg(wiphy, "info: successfully disconnected from %pM:"
" reason code %d\n", priv->cfg_bssid, reason_code);
queue_work(priv->workqueue, &priv->cfg_workqueue);
return 0;
}
/*
* This function informs the CFG802.11 subsystem of a new IBSS.
*
* The following information are sent to the CFG802.11 subsystem
* to register the new IBSS. If we do not register the new IBSS,
* a kernel panic will result.
* - SSID
* - SSID length
* - BSSID
* - Channel
*/
static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv)
{
struct ieee80211_channel *chan;
struct mwifiex_bss_info bss_info;
int ie_len;
u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)];
if (mwifiex_get_bss_info(priv, &bss_info))
return -1;
ie_buf[0] = WLAN_EID_SSID;
ie_buf[1] = bss_info.ssid.ssid_len;
memcpy(&ie_buf[sizeof(struct ieee_types_header)],
&bss_info.ssid.ssid,
bss_info.ssid.ssid_len);
ie_len = ie_buf[1] + sizeof(struct ieee_types_header);
chan = __ieee80211_get_channel(priv->wdev->wiphy,
ieee80211_channel_to_frequency(bss_info.bss_chan,
priv->curr_bss_params.band));
cfg80211_inform_bss(priv->wdev->wiphy, chan,
bss_info.bssid, 0, WLAN_CAPABILITY_IBSS,
0, ie_buf, ie_len, 0, GFP_KERNEL);
memcpy(priv->cfg_bssid, bss_info.bssid, ETH_ALEN);
return 0;
}
/*
* This function informs the CFG802.11 subsystem of a new BSS connection.
*
* The following information are sent to the CFG802.11 subsystem
* to register the new BSS connection. If we do not register the new BSS,
* a kernel panic will result.
* - MAC address
* - Capabilities
* - Beacon period
* - RSSI value
* - Channel
* - Supported rates IE
* - Extended capabilities IE
* - DS parameter set IE
* - HT Capability IE
* - Vendor Specific IE (221)
* - WPA IE
* - RSN IE
*/
static int mwifiex_inform_bss_from_scan_result(struct mwifiex_private *priv,
struct mwifiex_802_11_ssid *ssid)
{
struct mwifiex_bssdescriptor *scan_table;
int i, j;
struct ieee80211_channel *chan;
u8 *ie, *ie_buf;
u32 ie_len;
u8 *beacon;
int beacon_size;
u8 element_id, element_len;
#define MAX_IE_BUF 2048
ie_buf = kzalloc(MAX_IE_BUF, GFP_KERNEL);
if (!ie_buf) {
dev_err(priv->adapter->dev, "%s: failed to alloc ie_buf\n",
__func__);
return -ENOMEM;
}
scan_table = priv->adapter->scan_table;
for (i = 0; i < priv->adapter->num_in_scan_table; i++) {
if (ssid) {
/* Inform specific BSS only */
if (memcmp(ssid->ssid, scan_table[i].ssid.ssid,
ssid->ssid_len))
continue;
}
memset(ie_buf, 0, MAX_IE_BUF);
ie_buf[0] = WLAN_EID_SSID;
ie_buf[1] = scan_table[i].ssid.ssid_len;
memcpy(&ie_buf[sizeof(struct ieee_types_header)],
scan_table[i].ssid.ssid, ie_buf[1]);
ie = ie_buf + ie_buf[1] + sizeof(struct ieee_types_header);
ie_len = ie_buf[1] + sizeof(struct ieee_types_header);
ie[0] = WLAN_EID_SUPP_RATES;
for (j = 0; j < sizeof(scan_table[i].supported_rates); j++) {
if (!scan_table[i].supported_rates[j])
break;
else
ie[j + sizeof(struct ieee_types_header)] =
scan_table[i].supported_rates[j];
}
ie[1] = j;
ie_len += ie[1] + sizeof(struct ieee_types_header);
beacon = scan_table[i].beacon_buf;
beacon_size = scan_table[i].beacon_buf_size;
/* Skip time stamp, beacon interval and capability */
if (beacon) {
beacon += sizeof(scan_table[i].beacon_period)
+ sizeof(scan_table[i].time_stamp) +
+sizeof(scan_table[i].cap_info_bitmap);
beacon_size -= sizeof(scan_table[i].beacon_period)
+ sizeof(scan_table[i].time_stamp)
+ sizeof(scan_table[i].cap_info_bitmap);
}
while (beacon_size >= sizeof(struct ieee_types_header)) {
ie = ie_buf + ie_len;
element_id = *beacon;
element_len = *(beacon + 1);
if (beacon_size < (int) element_len +
sizeof(struct ieee_types_header)) {
dev_err(priv->adapter->dev, "%s: in processing"
" IE, bytes left < IE length\n",
__func__);
break;
}
switch (element_id) {
case WLAN_EID_EXT_CAPABILITY:
case WLAN_EID_DS_PARAMS:
case WLAN_EID_HT_CAPABILITY:
case WLAN_EID_VENDOR_SPECIFIC:
case WLAN_EID_RSN:
case WLAN_EID_BSS_AC_ACCESS_DELAY:
ie[0] = element_id;
ie[1] = element_len;
memcpy(&ie[sizeof(struct ieee_types_header)],
(u8 *) beacon
+ sizeof(struct ieee_types_header),
element_len);
ie_len += ie[1] +
sizeof(struct ieee_types_header);
break;
default:
break;
}
beacon += element_len +
sizeof(struct ieee_types_header);
beacon_size -= element_len +
sizeof(struct ieee_types_header);
}
chan = ieee80211_get_channel(priv->wdev->wiphy,
scan_table[i].freq);
cfg80211_inform_bss(priv->wdev->wiphy, chan,
scan_table[i].mac_address,
0, scan_table[i].cap_info_bitmap,
scan_table[i].beacon_period,
ie_buf, ie_len,
scan_table[i].rssi, GFP_KERNEL);
}
kfree(ie_buf);
return 0;
}
/*
* This function connects with a BSS.
*
* This function handles both Infra and Ad-Hoc modes. It also performs
* validity checking on the provided parameters, disconnects from the
* current BSS (if any), sets up the association/scan parameters,
* including security settings, and performs specific SSID scan before
* trying to connect.
*
* For Infra mode, the function returns failure if the specified SSID
* is not found in scan table. However, for Ad-Hoc mode, it can create
* the IBSS if it does not exist. On successful completion in either case,
* the function notifies the CFG802.11 subsystem of the new BSS connection,
* otherwise the kernel will panic.
*/
static int
mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len, u8 *ssid,
u8 *bssid, int mode, struct ieee80211_channel *channel,
struct cfg80211_connect_params *sme, bool privacy)
{
struct mwifiex_802_11_ssid req_ssid;
struct mwifiex_ssid_bssid ssid_bssid;
int ret, auth_type = 0;
memset(&req_ssid, 0, sizeof(struct mwifiex_802_11_ssid));
memset(&ssid_bssid, 0, sizeof(struct mwifiex_ssid_bssid));
req_ssid.ssid_len = ssid_len;
if (ssid_len > IEEE80211_MAX_SSID_LEN) {
dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
return -EINVAL;
}
memcpy(req_ssid.ssid, ssid, ssid_len);
if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) {
dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
return -EINVAL;
}
/* disconnect before try to associate */
mwifiex_deauthenticate(priv, NULL);
if (channel)
ret = mwifiex_set_rf_channel(priv, channel,
mwifiex_channels_to_cfg80211_channel_type
(priv->adapter->chan_offset));
ret = mwifiex_set_encode(priv, NULL, 0, 0, 1); /* Disable keys */
if (mode == NL80211_IFTYPE_ADHOC) {
/* "privacy" is set only for ad-hoc mode */
if (privacy) {
/*
* Keep WLAN_CIPHER_SUITE_WEP104 for now so that
* the firmware can find a matching network from the
* scan. The cfg80211 does not give us the encryption
* mode at this stage so just setting it to WEP here.
*/
priv->sec_info.encryption_mode =
WLAN_CIPHER_SUITE_WEP104;
priv->sec_info.authentication_mode =
NL80211_AUTHTYPE_OPEN_SYSTEM;
}
goto done;
}
/* Now handle infra mode. "sme" is valid for infra mode only */
if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC
|| sme->auth_type == NL80211_AUTHTYPE_OPEN_SYSTEM)
auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
else if (sme->auth_type == NL80211_AUTHTYPE_SHARED_KEY)
auth_type = NL80211_AUTHTYPE_SHARED_KEY;
if (sme->crypto.n_ciphers_pairwise) {
priv->sec_info.encryption_mode =
sme->crypto.ciphers_pairwise[0];
priv->sec_info.authentication_mode = auth_type;
}
if (sme->crypto.cipher_group) {
priv->sec_info.encryption_mode = sme->crypto.cipher_group;
priv->sec_info.authentication_mode = auth_type;
}
if (sme->ie)
ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len);
if (sme->key) {
if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) {
dev_dbg(priv->adapter->dev,
"info: setting wep encryption"
" with key len %d\n", sme->key_len);
ret = mwifiex_set_encode(priv, sme->key, sme->key_len,
sme->key_idx, 0);
}
}
done:
/* Do specific SSID scanning */
if (mwifiex_request_scan(priv, &req_ssid)) {
dev_err(priv->adapter->dev, "scan error\n");
return -EFAULT;
}
memcpy(&ssid_bssid.ssid, &req_ssid, sizeof(struct mwifiex_802_11_ssid));
if (mode != NL80211_IFTYPE_ADHOC) {
if (mwifiex_find_best_bss(priv, &ssid_bssid))
return -EFAULT;
/* Inform the BSS information to kernel, otherwise
* kernel will give a panic after successful assoc */
if (mwifiex_inform_bss_from_scan_result(priv, &req_ssid))
return -EFAULT;
}
dev_dbg(priv->adapter->dev, "info: trying to associate to %s and bssid %pM\n",
(char *) req_ssid.ssid, ssid_bssid.bssid);
memcpy(&priv->cfg_bssid, ssid_bssid.bssid, 6);
/* Connect to BSS by ESSID */
memset(&ssid_bssid.bssid, 0, ETH_ALEN);
if (!netif_queue_stopped(priv->netdev))
netif_stop_queue(priv->netdev);
if (mwifiex_bss_start(priv, &ssid_bssid))
return -EFAULT;
if (mode == NL80211_IFTYPE_ADHOC) {
/* Inform the BSS information to kernel, otherwise
* kernel will give a panic after successful assoc */
if (mwifiex_cfg80211_inform_ibss_bss(priv))
return -EFAULT;
}
return ret;
}
/*
* CFG802.11 operation handler for association request.
*
* This function does not work when the current mode is set to Ad-Hoc, or
* when there is already an association procedure going on. The given BSS
* information is used to associate.
*/
static int
mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
struct cfg80211_connect_params *sme)
{
struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
int ret = 0;
if (priv->assoc_request)
return -EBUSY;
if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
wiphy_err(wiphy, "received infra assoc request "
"when station is in ibss mode\n");
goto done;
}
priv->assoc_request = -EINPROGRESS;
wiphy_dbg(wiphy, "info: Trying to associate to %s and bssid %pM\n",
(char *) sme->ssid, sme->bssid);
ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid,
priv->bss_mode, sme->channel, sme, 0);
priv->assoc_request = 1;
done:
priv->assoc_result = ret;
queue_work(priv->workqueue, &priv->cfg_workqueue);
return ret;
}
/*
* CFG802.11 operation handler to join an IBSS.
*
* This function does not work in any mode other than Ad-Hoc, or if
* a join operation is already in progress.
*/
static int
mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
struct cfg80211_ibss_params *params)
{
struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
int ret = 0;
if (priv->ibss_join_request)
return -EBUSY;
if (priv->bss_mode != NL80211_IFTYPE_ADHOC) {
wiphy_err(wiphy, "request to join ibss received "
"when station is not in ibss mode\n");
goto done;
}
priv->ibss_join_request = -EINPROGRESS;
wiphy_dbg(wiphy, "info: trying to join to %s and bssid %pM\n",
(char *) params->ssid, params->bssid);
ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid,
params->bssid, priv->bss_mode,
params->channel, NULL, params->privacy);
priv->ibss_join_request = 1;
done:
priv->ibss_join_result = ret;
queue_work(priv->workqueue, &priv->cfg_workqueue);
return ret;
}
/*
* CFG802.11 operation handler to leave an IBSS.
*
* This function does not work if a leave operation is
* already in progress.
*/
static int
mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
{
struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
if (priv->disconnect)
return -EBUSY;
priv->disconnect = 1;
wiphy_dbg(wiphy, "info: disconnecting from essid %pM\n",
priv->cfg_bssid);
if (mwifiex_deauthenticate(priv, NULL))
return -EFAULT;
queue_work(priv->workqueue, &priv->cfg_workqueue);
return 0;
}
/*
* CFG802.11 operation handler for scan request.
*
* This function issues a scan request to the firmware based upon
* the user specified scan configuration. On successfull completion,
* it also informs the results.
*/
static int
mwifiex_cfg80211_scan(struct wiphy *wiphy, struct net_device *dev,
struct cfg80211_scan_request *request)
{
struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
wiphy_dbg(wiphy, "info: received scan request on %s\n", dev->name);
if (priv->scan_request && priv->scan_request != request)
return -EBUSY;
priv->scan_request = request;
queue_work(priv->workqueue, &priv->cfg_workqueue);
return 0;
}
/*
* This function sets up the CFG802.11 specific HT capability fields
* with default values.
*
* The following default values are set -
* - HT Supported = True
* - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K
* - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE
* - HT Capabilities supported by firmware
* - MCS information, Rx mask = 0xff
* - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01)
*/
static void
mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info,
struct mwifiex_private *priv)
{
int rx_mcs_supp;
struct ieee80211_mcs_info mcs_set;
u8 *mcs = (u8 *)&mcs_set;
struct mwifiex_adapter *adapter = priv->adapter;
ht_info->ht_supported = true;
ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
/* Fill HT capability information */
if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
else
ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap))
ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
else
ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20;
if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap))
ht_info->cap |= IEEE80211_HT_CAP_SGI_40;
else
ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40;
if (ISSUPP_RXSTBC(adapter->hw_dot_11n_dev_cap))
ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
else
ht_info->cap &= ~(3 << IEEE80211_HT_CAP_RX_STBC_SHIFT);
if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap))
ht_info->cap |= IEEE80211_HT_CAP_TX_STBC;
else
ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC;
ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
ht_info->cap |= IEEE80211_HT_CAP_SM_PS;
rx_mcs_supp = GET_RXMCSSUPP(adapter->hw_dev_mcs_support);
/* Set MCS for 1x1 */
memset(mcs, 0xff, rx_mcs_supp);
/* Clear all the other values */
memset(&mcs[rx_mcs_supp], 0,
sizeof(struct ieee80211_mcs_info) - rx_mcs_supp);
if (priv->bss_mode == NL80211_IFTYPE_STATION ||
ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
/* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */
SETHT_MCS32(mcs_set.rx_mask);
memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info));
ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
}
/* station cfg80211 operations */
static struct cfg80211_ops mwifiex_cfg80211_ops = {
.change_virtual_intf = mwifiex_cfg80211_change_virtual_intf,
.scan = mwifiex_cfg80211_scan,
.connect = mwifiex_cfg80211_connect,
.disconnect = mwifiex_cfg80211_disconnect,
.get_station = mwifiex_cfg80211_get_station,
.set_wiphy_params = mwifiex_cfg80211_set_wiphy_params,
.set_channel = mwifiex_cfg80211_set_channel,
.join_ibss = mwifiex_cfg80211_join_ibss,
.leave_ibss = mwifiex_cfg80211_leave_ibss,
.add_key = mwifiex_cfg80211_add_key,
.del_key = mwifiex_cfg80211_del_key,
.set_default_key = mwifiex_cfg80211_set_default_key,
.set_power_mgmt = mwifiex_cfg80211_set_power_mgmt,
.set_tx_power = mwifiex_cfg80211_set_tx_power,
.set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask,
};
/*
* This function registers the device with CFG802.11 subsystem.
*
* The function creates the wireless device/wiphy, populates it with
* default parameters and handler function pointers, and finally
* registers the device.
*/
int mwifiex_register_cfg80211(struct net_device *dev, u8 *mac,
struct mwifiex_private *priv)
{
int ret;
void *wdev_priv;
struct wireless_dev *wdev;
wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
if (!wdev) {
dev_err(priv->adapter->dev, "%s: allocating wireless device\n",
__func__);
return -ENOMEM;
}
wdev->wiphy =
wiphy_new(&mwifiex_cfg80211_ops,
sizeof(struct mwifiex_private *));
if (!wdev->wiphy) {
kfree(wdev);
return -ENOMEM;
}
wdev->iftype = NL80211_IFTYPE_STATION;
wdev->wiphy->max_scan_ssids = 10;
wdev->wiphy->interface_modes =
BIT(NL80211_IFTYPE_STATION) | BIT(NL80211_IFTYPE_ADHOC);
wdev->wiphy->bands[IEEE80211_BAND_2GHZ] = &mwifiex_band_2ghz;
mwifiex_setup_ht_caps(
&wdev->wiphy->bands[IEEE80211_BAND_2GHZ]->ht_cap, priv);
if (priv->adapter->config_bands & BAND_A) {
wdev->wiphy->bands[IEEE80211_BAND_5GHZ] = &mwifiex_band_5ghz;
mwifiex_setup_ht_caps(
&wdev->wiphy->bands[IEEE80211_BAND_5GHZ]->ht_cap, priv);
} else {
wdev->wiphy->bands[IEEE80211_BAND_5GHZ] = NULL;
}
/* Initialize cipher suits */
wdev->wiphy->cipher_suites = mwifiex_cipher_suites;
wdev->wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites);
memcpy(wdev->wiphy->perm_addr, mac, 6);
wdev->wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
/* We are using custom domains */
wdev->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
wdev->wiphy->reg_notifier = mwifiex_reg_notifier;
/* Set struct mwifiex_private pointer in wiphy_priv */
wdev_priv = wiphy_priv(wdev->wiphy);
*(unsigned long *) wdev_priv = (unsigned long) priv;
set_wiphy_dev(wdev->wiphy, (struct device *) priv->adapter->dev);
ret = wiphy_register(wdev->wiphy);
if (ret < 0) {
dev_err(priv->adapter->dev, "%s: registering cfg80211 device\n",
__func__);
wiphy_free(wdev->wiphy);
kfree(wdev);
return ret;
} else {
dev_dbg(priv->adapter->dev,
"info: successfully registered wiphy device\n");
}
dev_net_set(dev, wiphy_net(wdev->wiphy));
dev->ieee80211_ptr = wdev;
memcpy(dev->dev_addr, wdev->wiphy->perm_addr, 6);
memcpy(dev->perm_addr, wdev->wiphy->perm_addr, 6);
SET_NETDEV_DEV(dev, wiphy_dev(wdev->wiphy));
priv->wdev = wdev;
dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT;
dev->hard_header_len += MWIFIEX_MIN_DATA_HEADER_LEN;
return ret;
}
/*
* This function handles the result of different pending network operations.
*
* The following operations are handled and CFG802.11 subsystem is
* notified accordingly -
* - Scan request completion
* - Association request completion
* - IBSS join request completion
* - Disconnect request completion
*/
void
mwifiex_cfg80211_results(struct work_struct *work)
{
struct mwifiex_private *priv =
container_of(work, struct mwifiex_private, cfg_workqueue);
struct mwifiex_user_scan_cfg *scan_req;
int ret = 0, i;
struct ieee80211_channel *chan;
if (priv->scan_request) {
scan_req = kzalloc(sizeof(struct mwifiex_user_scan_cfg),
GFP_KERNEL);
if (!scan_req) {
dev_err(priv->adapter->dev, "failed to alloc "
"scan_req\n");
return;
}
for (i = 0; i < priv->scan_request->n_ssids; i++) {
memcpy(scan_req->ssid_list[i].ssid,
priv->scan_request->ssids[i].ssid,
priv->scan_request->ssids[i].ssid_len);
scan_req->ssid_list[i].max_len =
priv->scan_request->ssids[i].ssid_len;
}
for (i = 0; i < priv->scan_request->n_channels; i++) {
chan = priv->scan_request->channels[i];
scan_req->chan_list[i].chan_number = chan->hw_value;
scan_req->chan_list[i].radio_type = chan->band;
if (chan->flags & IEEE80211_CHAN_DISABLED)
scan_req->chan_list[i].scan_type =
MWIFIEX_SCAN_TYPE_PASSIVE;
else
scan_req->chan_list[i].scan_type =
MWIFIEX_SCAN_TYPE_ACTIVE;
scan_req->chan_list[i].scan_time = 0;
}
if (mwifiex_set_user_scan_ioctl(priv, scan_req)) {
ret = -EFAULT;
goto done;
}
if (mwifiex_inform_bss_from_scan_result(priv, NULL))
ret = -EFAULT;
done:
priv->scan_result_status = ret;
dev_dbg(priv->adapter->dev, "info: %s: sending scan results\n",
__func__);
cfg80211_scan_done(priv->scan_request,
(priv->scan_result_status < 0));
priv->scan_request = NULL;
kfree(scan_req);
}
if (priv->assoc_request == 1) {
if (!priv->assoc_result) {
cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
NULL, 0, NULL, 0,
WLAN_STATUS_SUCCESS,
GFP_KERNEL);
dev_dbg(priv->adapter->dev,
"info: associated to bssid %pM successfully\n",
priv->cfg_bssid);
} else {
dev_dbg(priv->adapter->dev,
"info: association to bssid %pM failed\n",
priv->cfg_bssid);
memset(priv->cfg_bssid, 0, ETH_ALEN);
}
priv->assoc_request = 0;
priv->assoc_result = 0;
}
if (priv->ibss_join_request == 1) {
if (!priv->ibss_join_result) {
cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid,
GFP_KERNEL);
dev_dbg(priv->adapter->dev,
"info: joined/created adhoc network with bssid"
" %pM successfully\n", priv->cfg_bssid);
} else {
dev_dbg(priv->adapter->dev,
"info: failed creating/joining adhoc network\n");
}
priv->ibss_join_request = 0;
priv->ibss_join_result = 0;
}
if (priv->disconnect) {
memset(priv->cfg_bssid, 0, ETH_ALEN);
priv->disconnect = 0;
}
}
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