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kernel-fxtec-pro1x/drivers/net/wireless/libertas/wext.c
Javier Cardona 85319f933a libertas: rate adaptation configuration via iwconfig. 
Implemented rate adaptation support via 'iwconfig rate' API.  It is now
possible to specify a bit-rate value and append 'auto'.  That will configure
rate adaptation to use all bit-rates equal or lower than than selected value.

Made lbs_cmd_802_11_rate_adapt_rateset a direct command.

Signed-off-by: Javier Cardona <javier@cozybit.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-06-03 15:00:17 -04:00

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/**
* This file contains ioctl functions
*/
#include <linux/ctype.h>
#include <linux/delay.h>
#include <linux/if.h>
#include <linux/if_arp.h>
#include <linux/wireless.h>
#include <linux/bitops.h>
#include <net/ieee80211.h>
#include <net/iw_handler.h>
#include "host.h"
#include "radiotap.h"
#include "decl.h"
#include "defs.h"
#include "dev.h"
#include "wext.h"
#include "scan.h"
#include "assoc.h"
#include "cmd.h"
static inline void lbs_postpone_association_work(struct lbs_private *priv)
{
if (priv->surpriseremoved)
return;
cancel_delayed_work(&priv->assoc_work);
queue_delayed_work(priv->work_thread, &priv->assoc_work, HZ / 2);
}
static inline void lbs_cancel_association_work(struct lbs_private *priv)
{
cancel_delayed_work(&priv->assoc_work);
kfree(priv->pending_assoc_req);
priv->pending_assoc_req = NULL;
}
/**
* @brief Find the channel frequency power info with specific channel
*
* @param priv A pointer to struct lbs_private structure
* @param band it can be BAND_A, BAND_G or BAND_B
* @param channel the channel for looking
* @return A pointer to struct chan_freq_power structure or NULL if not find.
*/
struct chan_freq_power *lbs_find_cfp_by_band_and_channel(
struct lbs_private *priv,
u8 band,
u16 channel)
{
struct chan_freq_power *cfp = NULL;
struct region_channel *rc;
int i, j;
for (j = 0; !cfp && (j < ARRAY_SIZE(priv->region_channel)); j++) {
rc = &priv->region_channel[j];
if (priv->enable11d)
rc = &priv->universal_channel[j];
if (!rc->valid || !rc->CFP)
continue;
if (rc->band != band)
continue;
for (i = 0; i < rc->nrcfp; i++) {
if (rc->CFP[i].channel == channel) {
cfp = &rc->CFP[i];
break;
}
}
}
if (!cfp && channel)
lbs_deb_wext("lbs_find_cfp_by_band_and_channel: can't find "
"cfp by band %d / channel %d\n", band, channel);
return cfp;
}
/**
* @brief Find the channel frequency power info with specific frequency
*
* @param priv A pointer to struct lbs_private structure
* @param band it can be BAND_A, BAND_G or BAND_B
* @param freq the frequency for looking
* @return A pointer to struct chan_freq_power structure or NULL if not find.
*/
static struct chan_freq_power *find_cfp_by_band_and_freq(
struct lbs_private *priv,
u8 band,
u32 freq)
{
struct chan_freq_power *cfp = NULL;
struct region_channel *rc;
int i, j;
for (j = 0; !cfp && (j < ARRAY_SIZE(priv->region_channel)); j++) {
rc = &priv->region_channel[j];
if (priv->enable11d)
rc = &priv->universal_channel[j];
if (!rc->valid || !rc->CFP)
continue;
if (rc->band != band)
continue;
for (i = 0; i < rc->nrcfp; i++) {
if (rc->CFP[i].freq == freq) {
cfp = &rc->CFP[i];
break;
}
}
}
if (!cfp && freq)
lbs_deb_wext("find_cfp_by_band_and_freql: can't find cfp by "
"band %d / freq %d\n", band, freq);
return cfp;
}
/**
* @brief Set Radio On/OFF
*
* @param priv A pointer to struct lbs_private structure
* @option Radio Option
* @return 0 --success, otherwise fail
*/
static int lbs_radio_ioctl(struct lbs_private *priv, u8 option)
{
int ret = 0;
lbs_deb_enter(LBS_DEB_WEXT);
if (priv->radioon != option) {
lbs_deb_wext("switching radio %s\n", option ? "on" : "off");
priv->radioon = option;
ret = lbs_prepare_and_send_command(priv,
CMD_802_11_RADIO_CONTROL,
CMD_ACT_SET,
CMD_OPTION_WAITFORRSP, 0, NULL);
}
lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
return ret;
}
/**
* @brief Copy active data rates based on adapter mode and status
*
* @param priv A pointer to struct lbs_private structure
* @param rate The buf to return the active rates
*/
static void copy_active_data_rates(struct lbs_private *priv, u8 *rates)
{
lbs_deb_enter(LBS_DEB_WEXT);
if ((priv->connect_status != LBS_CONNECTED) &&
(priv->mesh_connect_status != LBS_CONNECTED))
memcpy(rates, lbs_bg_rates, MAX_RATES);
else
memcpy(rates, priv->curbssparams.rates, MAX_RATES);
lbs_deb_leave(LBS_DEB_WEXT);
}
static int lbs_get_name(struct net_device *dev, struct iw_request_info *info,
char *cwrq, char *extra)
{
lbs_deb_enter(LBS_DEB_WEXT);
/* We could add support for 802.11n here as needed. Jean II */
snprintf(cwrq, IFNAMSIZ, "IEEE 802.11b/g");
lbs_deb_leave(LBS_DEB_WEXT);
return 0;
}
static int lbs_get_freq(struct net_device *dev, struct iw_request_info *info,
struct iw_freq *fwrq, char *extra)
{
struct lbs_private *priv = dev->priv;
struct chan_freq_power *cfp;
lbs_deb_enter(LBS_DEB_WEXT);
cfp = lbs_find_cfp_by_band_and_channel(priv, 0,
priv->curbssparams.channel);
if (!cfp) {
if (priv->curbssparams.channel)
lbs_deb_wext("invalid channel %d\n",
priv->curbssparams.channel);
return -EINVAL;
}
fwrq->m = (long)cfp->freq * 100000;
fwrq->e = 1;
lbs_deb_wext("freq %u\n", fwrq->m);
lbs_deb_leave(LBS_DEB_WEXT);
return 0;
}
static int lbs_get_wap(struct net_device *dev, struct iw_request_info *info,
struct sockaddr *awrq, char *extra)
{
struct lbs_private *priv = dev->priv;
lbs_deb_enter(LBS_DEB_WEXT);
if (priv->connect_status == LBS_CONNECTED) {
memcpy(awrq->sa_data, priv->curbssparams.bssid, ETH_ALEN);
} else {
memset(awrq->sa_data, 0, ETH_ALEN);
}
awrq->sa_family = ARPHRD_ETHER;
lbs_deb_leave(LBS_DEB_WEXT);
return 0;
}
static int lbs_set_nick(struct net_device *dev, struct iw_request_info *info,
struct iw_point *dwrq, char *extra)
{
struct lbs_private *priv = dev->priv;
lbs_deb_enter(LBS_DEB_WEXT);
/*
* Check the size of the string
*/
if (dwrq->length > 16) {
return -E2BIG;
}
mutex_lock(&priv->lock);
memset(priv->nodename, 0, sizeof(priv->nodename));
memcpy(priv->nodename, extra, dwrq->length);
mutex_unlock(&priv->lock);
lbs_deb_leave(LBS_DEB_WEXT);
return 0;
}
static int lbs_get_nick(struct net_device *dev, struct iw_request_info *info,
struct iw_point *dwrq, char *extra)
{
struct lbs_private *priv = dev->priv;
lbs_deb_enter(LBS_DEB_WEXT);
dwrq->length = strlen(priv->nodename);
memcpy(extra, priv->nodename, dwrq->length);
extra[dwrq->length] = '\0';
dwrq->flags = 1; /* active */
lbs_deb_leave(LBS_DEB_WEXT);
return 0;
}
static int mesh_get_nick(struct net_device *dev, struct iw_request_info *info,
struct iw_point *dwrq, char *extra)
{
struct lbs_private *priv = dev->priv;
lbs_deb_enter(LBS_DEB_WEXT);
/* Use nickname to indicate that mesh is on */
if (priv->mesh_connect_status == LBS_CONNECTED) {
strncpy(extra, "Mesh", 12);
extra[12] = '\0';
dwrq->length = strlen(extra);
}
else {
extra[0] = '\0';
dwrq->length = 0;
}
lbs_deb_leave(LBS_DEB_WEXT);
return 0;
}
static int lbs_set_rts(struct net_device *dev, struct iw_request_info *info,
struct iw_param *vwrq, char *extra)
{
int ret = 0;
struct lbs_private *priv = dev->priv;
u32 rthr = vwrq->value;
lbs_deb_enter(LBS_DEB_WEXT);
if (vwrq->disabled) {
priv->rtsthsd = rthr = MRVDRV_RTS_MAX_VALUE;
} else {
if (rthr < MRVDRV_RTS_MIN_VALUE || rthr > MRVDRV_RTS_MAX_VALUE)
return -EINVAL;
priv->rtsthsd = rthr;
}
ret = lbs_prepare_and_send_command(priv, CMD_802_11_SNMP_MIB,
CMD_ACT_SET, CMD_OPTION_WAITFORRSP,
OID_802_11_RTS_THRESHOLD, &rthr);
lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
return ret;
}
static int lbs_get_rts(struct net_device *dev, struct iw_request_info *info,
struct iw_param *vwrq, char *extra)
{
int ret = 0;
struct lbs_private *priv = dev->priv;
lbs_deb_enter(LBS_DEB_WEXT);
priv->rtsthsd = 0;
ret = lbs_prepare_and_send_command(priv, CMD_802_11_SNMP_MIB,
CMD_ACT_GET, CMD_OPTION_WAITFORRSP,
OID_802_11_RTS_THRESHOLD, NULL);
if (ret)
goto out;
vwrq->value = priv->rtsthsd;
vwrq->disabled = ((vwrq->value < MRVDRV_RTS_MIN_VALUE)
|| (vwrq->value > MRVDRV_RTS_MAX_VALUE));
vwrq->fixed = 1;
out:
lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
return ret;
}
static int lbs_set_frag(struct net_device *dev, struct iw_request_info *info,
struct iw_param *vwrq, char *extra)
{
int ret = 0;
u32 fthr = vwrq->value;
struct lbs_private *priv = dev->priv;
lbs_deb_enter(LBS_DEB_WEXT);
if (vwrq->disabled) {
priv->fragthsd = fthr = MRVDRV_FRAG_MAX_VALUE;
} else {
if (fthr < MRVDRV_FRAG_MIN_VALUE
|| fthr > MRVDRV_FRAG_MAX_VALUE)
return -EINVAL;
priv->fragthsd = fthr;
}
ret = lbs_prepare_and_send_command(priv, CMD_802_11_SNMP_MIB,
CMD_ACT_SET, CMD_OPTION_WAITFORRSP,
OID_802_11_FRAGMENTATION_THRESHOLD, &fthr);
lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
return ret;
}
static int lbs_get_frag(struct net_device *dev, struct iw_request_info *info,
struct iw_param *vwrq, char *extra)
{
int ret = 0;
struct lbs_private *priv = dev->priv;
lbs_deb_enter(LBS_DEB_WEXT);
priv->fragthsd = 0;
ret = lbs_prepare_and_send_command(priv,
CMD_802_11_SNMP_MIB,
CMD_ACT_GET, CMD_OPTION_WAITFORRSP,
OID_802_11_FRAGMENTATION_THRESHOLD, NULL);
if (ret)
goto out;
vwrq->value = priv->fragthsd;
vwrq->disabled = ((vwrq->value < MRVDRV_FRAG_MIN_VALUE)
|| (vwrq->value > MRVDRV_FRAG_MAX_VALUE));
vwrq->fixed = 1;
out:
lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
return ret;
}
static int lbs_get_mode(struct net_device *dev,
struct iw_request_info *info, u32 * uwrq, char *extra)
{
struct lbs_private *priv = dev->priv;
lbs_deb_enter(LBS_DEB_WEXT);
*uwrq = priv->mode;
lbs_deb_leave(LBS_DEB_WEXT);
return 0;
}
static int mesh_wlan_get_mode(struct net_device *dev,
struct iw_request_info *info, u32 * uwrq,
char *extra)
{
lbs_deb_enter(LBS_DEB_WEXT);
*uwrq = IW_MODE_REPEAT ;
lbs_deb_leave(LBS_DEB_WEXT);
return 0;
}
static int lbs_get_txpow(struct net_device *dev,
struct iw_request_info *info,
struct iw_param *vwrq, char *extra)
{
int ret = 0;
struct lbs_private *priv = dev->priv;
lbs_deb_enter(LBS_DEB_WEXT);
ret = lbs_prepare_and_send_command(priv,
CMD_802_11_RF_TX_POWER,
CMD_ACT_TX_POWER_OPT_GET,
CMD_OPTION_WAITFORRSP, 0, NULL);
if (ret)
goto out;
lbs_deb_wext("tx power level %d dbm\n", priv->txpowerlevel);
vwrq->value = priv->txpowerlevel;
vwrq->fixed = 1;
if (priv->radioon) {
vwrq->disabled = 0;
vwrq->flags = IW_TXPOW_DBM;
} else {
vwrq->disabled = 1;
}
out:
lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
return ret;
}
static int lbs_set_retry(struct net_device *dev, struct iw_request_info *info,
struct iw_param *vwrq, char *extra)
{
int ret = 0;
struct lbs_private *priv = dev->priv;
lbs_deb_enter(LBS_DEB_WEXT);
if (vwrq->flags == IW_RETRY_LIMIT) {
/* The MAC has a 4-bit Total_Tx_Count register
Total_Tx_Count = 1 + Tx_Retry_Count */
#define TX_RETRY_MIN 0
#define TX_RETRY_MAX 14
if (vwrq->value < TX_RETRY_MIN || vwrq->value > TX_RETRY_MAX)
return -EINVAL;
/* Adding 1 to convert retry count to try count */
priv->txretrycount = vwrq->value + 1;
ret = lbs_prepare_and_send_command(priv, CMD_802_11_SNMP_MIB,
CMD_ACT_SET,
CMD_OPTION_WAITFORRSP,
OID_802_11_TX_RETRYCOUNT, NULL);
if (ret)
goto out;
} else {
return -EOPNOTSUPP;
}
out:
lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
return ret;
}
static int lbs_get_retry(struct net_device *dev, struct iw_request_info *info,
struct iw_param *vwrq, char *extra)
{
struct lbs_private *priv = dev->priv;
int ret = 0;
lbs_deb_enter(LBS_DEB_WEXT);
priv->txretrycount = 0;
ret = lbs_prepare_and_send_command(priv,
CMD_802_11_SNMP_MIB,
CMD_ACT_GET, CMD_OPTION_WAITFORRSP,
OID_802_11_TX_RETRYCOUNT, NULL);
if (ret)
goto out;
vwrq->disabled = 0;
if (!vwrq->flags) {
vwrq->flags = IW_RETRY_LIMIT;
/* Subtract 1 to convert try count to retry count */
vwrq->value = priv->txretrycount - 1;
}
out:
lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
return ret;
}
static inline void sort_channels(struct iw_freq *freq, int num)
{
int i, j;
struct iw_freq temp;
for (i = 0; i < num; i++)
for (j = i + 1; j < num; j++)
if (freq[i].i > freq[j].i) {
temp.i = freq[i].i;
temp.m = freq[i].m;
freq[i].i = freq[j].i;
freq[i].m = freq[j].m;
freq[j].i = temp.i;
freq[j].m = temp.m;
}
}
/* data rate listing
MULTI_BANDS:
abg a b b/g
Infra G(12) A(8) B(4) G(12)
Adhoc A+B(12) A(8) B(4) B(4)
non-MULTI_BANDS:
b b/g
Infra B(4) G(12)
Adhoc B(4) B(4)
*/
/**
* @brief Get Range Info
*
* @param dev A pointer to net_device structure
* @param info A pointer to iw_request_info structure
* @param vwrq A pointer to iw_param structure
* @param extra A pointer to extra data buf
* @return 0 --success, otherwise fail
*/
static int lbs_get_range(struct net_device *dev, struct iw_request_info *info,
struct iw_point *dwrq, char *extra)
{
int i, j;
struct lbs_private *priv = dev->priv;
struct iw_range *range = (struct iw_range *)extra;
struct chan_freq_power *cfp;
u8 rates[MAX_RATES + 1];
u8 flag = 0;
lbs_deb_enter(LBS_DEB_WEXT);
dwrq->length = sizeof(struct iw_range);
memset(range, 0, sizeof(struct iw_range));
range->min_nwid = 0;
range->max_nwid = 0;
memset(rates, 0, sizeof(rates));
copy_active_data_rates(priv, rates);
range->num_bitrates = strnlen(rates, IW_MAX_BITRATES);
for (i = 0; i < range->num_bitrates; i++)
range->bitrate[i] = rates[i] * 500000;
range->num_bitrates = i;
lbs_deb_wext("IW_MAX_BITRATES %d, num_bitrates %d\n", IW_MAX_BITRATES,
range->num_bitrates);
range->num_frequency = 0;
range->scan_capa = IW_SCAN_CAPA_ESSID;
if (priv->enable11d &&
(priv->connect_status == LBS_CONNECTED ||
priv->mesh_connect_status == LBS_CONNECTED)) {
u8 chan_no;
u8 band;
struct parsed_region_chan_11d *parsed_region_chan =
&priv->parsed_region_chan;
if (parsed_region_chan == NULL) {
lbs_deb_wext("11d: parsed_region_chan is NULL\n");
goto out;
}
band = parsed_region_chan->band;
lbs_deb_wext("band %d, nr_char %d\n", band,
parsed_region_chan->nr_chan);
for (i = 0; (range->num_frequency < IW_MAX_FREQUENCIES)
&& (i < parsed_region_chan->nr_chan); i++) {
chan_no = parsed_region_chan->chanpwr[i].chan;
lbs_deb_wext("chan_no %d\n", chan_no);
range->freq[range->num_frequency].i = (long)chan_no;
range->freq[range->num_frequency].m =
(long)lbs_chan_2_freq(chan_no) * 100000;
range->freq[range->num_frequency].e = 1;
range->num_frequency++;
}
flag = 1;
}
if (!flag) {
for (j = 0; (range->num_frequency < IW_MAX_FREQUENCIES)
&& (j < ARRAY_SIZE(priv->region_channel)); j++) {
cfp = priv->region_channel[j].CFP;
for (i = 0; (range->num_frequency < IW_MAX_FREQUENCIES)
&& priv->region_channel[j].valid
&& cfp
&& (i < priv->region_channel[j].nrcfp); i++) {
range->freq[range->num_frequency].i =
(long)cfp->channel;
range->freq[range->num_frequency].m =
(long)cfp->freq * 100000;
range->freq[range->num_frequency].e = 1;
cfp++;
range->num_frequency++;
}
}
}
lbs_deb_wext("IW_MAX_FREQUENCIES %d, num_frequency %d\n",
IW_MAX_FREQUENCIES, range->num_frequency);
range->num_channels = range->num_frequency;
sort_channels(&range->freq[0], range->num_frequency);
/*
* Set an indication of the max TCP throughput in bit/s that we can
* expect using this interface
*/
if (i > 2)
range->throughput = 5000 * 1000;
else
range->throughput = 1500 * 1000;
range->min_rts = MRVDRV_RTS_MIN_VALUE;
range->max_rts = MRVDRV_RTS_MAX_VALUE;
range->min_frag = MRVDRV_FRAG_MIN_VALUE;
range->max_frag = MRVDRV_FRAG_MAX_VALUE;
range->encoding_size[0] = 5;
range->encoding_size[1] = 13;
range->num_encoding_sizes = 2;
range->max_encoding_tokens = 4;
/*
* Right now we support only "iwconfig ethX power on|off"
*/
range->pm_capa = IW_POWER_ON;
/*
* Minimum version we recommend
*/
range->we_version_source = 15;
/*
* Version we are compiled with
*/
range->we_version_compiled = WIRELESS_EXT;
range->retry_capa = IW_RETRY_LIMIT;
range->retry_flags = IW_RETRY_LIMIT | IW_RETRY_MAX;
range->min_retry = TX_RETRY_MIN;
range->max_retry = TX_RETRY_MAX;
/*
* Set the qual, level and noise range values
*/
range->max_qual.qual = 100;
range->max_qual.level = 0;
range->max_qual.noise = 0;
range->max_qual.updated = IW_QUAL_ALL_UPDATED | IW_QUAL_DBM;
range->avg_qual.qual = 70;
/* TODO: Find real 'good' to 'bad' threshold value for RSSI */
range->avg_qual.level = 0;
range->avg_qual.noise = 0;
range->avg_qual.updated = IW_QUAL_ALL_UPDATED | IW_QUAL_DBM;
range->sensitivity = 0;
/*
* Setup the supported power level ranges
*/
memset(range->txpower, 0, sizeof(range->txpower));
range->txpower[0] = 5;
range->txpower[1] = 7;
range->txpower[2] = 9;
range->txpower[3] = 11;
range->txpower[4] = 13;
range->txpower[5] = 15;
range->txpower[6] = 17;
range->txpower[7] = 19;
range->num_txpower = 8;
range->txpower_capa = IW_TXPOW_DBM;
range->txpower_capa |= IW_TXPOW_RANGE;
range->event_capa[0] = (IW_EVENT_CAPA_K_0 |
IW_EVENT_CAPA_MASK(SIOCGIWAP) |
IW_EVENT_CAPA_MASK(SIOCGIWSCAN));
range->event_capa[1] = IW_EVENT_CAPA_K_1;
if (priv->fwcapinfo & FW_CAPINFO_WPA) {
range->enc_capa = IW_ENC_CAPA_WPA
| IW_ENC_CAPA_WPA2
| IW_ENC_CAPA_CIPHER_TKIP
| IW_ENC_CAPA_CIPHER_CCMP;
}
out:
lbs_deb_leave(LBS_DEB_WEXT);
return 0;
}
static int lbs_set_power(struct net_device *dev, struct iw_request_info *info,
struct iw_param *vwrq, char *extra)
{
struct lbs_private *priv = dev->priv;
lbs_deb_enter(LBS_DEB_WEXT);
if (!priv->ps_supported) {
if (vwrq->disabled)
return 0;
else
return -EINVAL;
}
/* PS is currently supported only in Infrastructure mode
* Remove this check if it is to be supported in IBSS mode also
*/
if (vwrq->disabled) {
priv->psmode = LBS802_11POWERMODECAM;
if (priv->psstate != PS_STATE_FULL_POWER) {
lbs_ps_wakeup(priv, CMD_OPTION_WAITFORRSP);
}
return 0;
}
if ((vwrq->flags & IW_POWER_TYPE) == IW_POWER_TIMEOUT) {
lbs_deb_wext(
"setting power timeout is not supported\n");
return -EINVAL;
} else if ((vwrq->flags & IW_POWER_TYPE) == IW_POWER_PERIOD) {
lbs_deb_wext("setting power period not supported\n");
return -EINVAL;
}
if (priv->psmode != LBS802_11POWERMODECAM) {
return 0;
}
priv->psmode = LBS802_11POWERMODEMAX_PSP;
if (priv->connect_status == LBS_CONNECTED) {
lbs_ps_sleep(priv, CMD_OPTION_WAITFORRSP);
}
lbs_deb_leave(LBS_DEB_WEXT);
return 0;
}
static int lbs_get_power(struct net_device *dev, struct iw_request_info *info,
struct iw_param *vwrq, char *extra)
{
struct lbs_private *priv = dev->priv;
lbs_deb_enter(LBS_DEB_WEXT);
vwrq->value = 0;
vwrq->flags = 0;
vwrq->disabled = priv->psmode == LBS802_11POWERMODECAM
|| priv->connect_status == LBS_DISCONNECTED;
lbs_deb_leave(LBS_DEB_WEXT);
return 0;
}
static struct iw_statistics *lbs_get_wireless_stats(struct net_device *dev)
{
enum {
POOR = 30,
FAIR = 60,
GOOD = 80,
VERY_GOOD = 90,
EXCELLENT = 95,
PERFECT = 100
};
struct lbs_private *priv = dev->priv;
u32 rssi_qual;
u32 tx_qual;
u32 quality = 0;
int stats_valid = 0;
u8 rssi;
u32 tx_retries;
struct cmd_ds_802_11_get_log log;
lbs_deb_enter(LBS_DEB_WEXT);
priv->wstats.status = priv->mode;
/* If we're not associated, all quality values are meaningless */
if ((priv->connect_status != LBS_CONNECTED) &&
(priv->mesh_connect_status != LBS_CONNECTED))
goto out;
/* Quality by RSSI */
priv->wstats.qual.level =
CAL_RSSI(priv->SNR[TYPE_BEACON][TYPE_NOAVG],
priv->NF[TYPE_BEACON][TYPE_NOAVG]);
if (priv->NF[TYPE_BEACON][TYPE_NOAVG] == 0) {
priv->wstats.qual.noise = MRVDRV_NF_DEFAULT_SCAN_VALUE;
} else {
priv->wstats.qual.noise =
CAL_NF(priv->NF[TYPE_BEACON][TYPE_NOAVG]);
}
lbs_deb_wext("signal level %#x\n", priv->wstats.qual.level);
lbs_deb_wext("noise %#x\n", priv->wstats.qual.noise);
rssi = priv->wstats.qual.level - priv->wstats.qual.noise;
if (rssi < 15)
rssi_qual = rssi * POOR / 10;
else if (rssi < 20)
rssi_qual = (rssi - 15) * (FAIR - POOR) / 5 + POOR;
else if (rssi < 30)
rssi_qual = (rssi - 20) * (GOOD - FAIR) / 5 + FAIR;
else if (rssi < 40)
rssi_qual = (rssi - 30) * (VERY_GOOD - GOOD) /
10 + GOOD;
else
rssi_qual = (rssi - 40) * (PERFECT - VERY_GOOD) /
10 + VERY_GOOD;
quality = rssi_qual;
/* Quality by TX errors */
priv->wstats.discard.retries = priv->stats.tx_errors;
memset(&log, 0, sizeof(log));
log.hdr.size = cpu_to_le16(sizeof(log));
lbs_cmd_with_response(priv, CMD_802_11_GET_LOG, &log);
tx_retries = le32_to_cpu(log.retry);
if (tx_retries > 75)
tx_qual = (90 - tx_retries) * POOR / 15;
else if (tx_retries > 70)
tx_qual = (75 - tx_retries) * (FAIR - POOR) / 5 + POOR;
else if (tx_retries > 65)
tx_qual = (70 - tx_retries) * (GOOD - FAIR) / 5 + FAIR;
else if (tx_retries > 50)
tx_qual = (65 - tx_retries) * (VERY_GOOD - GOOD) /
15 + GOOD;
else
tx_qual = (50 - tx_retries) *
(PERFECT - VERY_GOOD) / 50 + VERY_GOOD;
quality = min(quality, tx_qual);
priv->wstats.discard.code = le32_to_cpu(log.wepundecryptable);
priv->wstats.discard.retries = tx_retries;
priv->wstats.discard.misc = le32_to_cpu(log.ackfailure);
/* Calculate quality */
priv->wstats.qual.qual = min_t(u8, quality, 100);
priv->wstats.qual.updated = IW_QUAL_ALL_UPDATED | IW_QUAL_DBM;
stats_valid = 1;
/* update stats asynchronously for future calls */
lbs_prepare_and_send_command(priv, CMD_802_11_RSSI, 0,
0, 0, NULL);
out:
if (!stats_valid) {
priv->wstats.miss.beacon = 0;
priv->wstats.discard.retries = 0;
priv->wstats.qual.qual = 0;
priv->wstats.qual.level = 0;
priv->wstats.qual.noise = 0;
priv->wstats.qual.updated = IW_QUAL_ALL_UPDATED;
priv->wstats.qual.updated |= IW_QUAL_NOISE_INVALID |
IW_QUAL_QUAL_INVALID | IW_QUAL_LEVEL_INVALID;
}
lbs_deb_leave(LBS_DEB_WEXT);
return &priv->wstats;
}
static int lbs_set_freq(struct net_device *dev, struct iw_request_info *info,
struct iw_freq *fwrq, char *extra)
{
int ret = -EINVAL;
struct lbs_private *priv = dev->priv;
struct chan_freq_power *cfp;
struct assoc_request * assoc_req;
lbs_deb_enter(LBS_DEB_WEXT);
mutex_lock(&priv->lock);
assoc_req = lbs_get_association_request(priv);
if (!assoc_req) {
ret = -ENOMEM;
goto out;
}
/* If setting by frequency, convert to a channel */
if (fwrq->e == 1) {
long f = fwrq->m / 100000;
cfp = find_cfp_by_band_and_freq(priv, 0, f);
if (!cfp) {
lbs_deb_wext("invalid freq %ld\n", f);
goto out;
}
fwrq->e = 0;
fwrq->m = (int) cfp->channel;
}
/* Setting by channel number */
if (fwrq->m > 1000 || fwrq->e > 0) {
goto out;
}
cfp = lbs_find_cfp_by_band_and_channel(priv, 0, fwrq->m);
if (!cfp) {
goto out;
}
assoc_req->channel = fwrq->m;
ret = 0;
out:
if (ret == 0) {
set_bit(ASSOC_FLAG_CHANNEL, &assoc_req->flags);
lbs_postpone_association_work(priv);
} else {
lbs_cancel_association_work(priv);
}
mutex_unlock(&priv->lock);
lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
return ret;
}
static int lbs_mesh_set_freq(struct net_device *dev,
struct iw_request_info *info,
struct iw_freq *fwrq, char *extra)
{
struct lbs_private *priv = dev->priv;
struct chan_freq_power *cfp;
int ret = -EINVAL;
lbs_deb_enter(LBS_DEB_WEXT);
/* If setting by frequency, convert to a channel */
if (fwrq->e == 1) {
long f = fwrq->m / 100000;
cfp = find_cfp_by_band_and_freq(priv, 0, f);
if (!cfp) {
lbs_deb_wext("invalid freq %ld\n", f);
goto out;
}
fwrq->e = 0;
fwrq->m = (int) cfp->channel;
}
/* Setting by channel number */
if (fwrq->m > 1000 || fwrq->e > 0) {
goto out;
}
cfp = lbs_find_cfp_by_band_and_channel(priv, 0, fwrq->m);
if (!cfp) {
goto out;
}
if (fwrq->m != priv->curbssparams.channel) {
lbs_deb_wext("mesh channel change forces eth disconnect\n");
if (priv->mode == IW_MODE_INFRA)
lbs_send_deauthentication(priv);
else if (priv->mode == IW_MODE_ADHOC)
lbs_stop_adhoc_network(priv);
}
lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_START, fwrq->m);
lbs_update_channel(priv);
ret = 0;
out:
lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
return ret;
}
static int lbs_set_rate(struct net_device *dev, struct iw_request_info *info,
struct iw_param *vwrq, char *extra)
{
struct lbs_private *priv = dev->priv;
u8 new_rate = 0;
int ret = -EINVAL;
u8 rates[MAX_RATES + 1];
lbs_deb_enter(LBS_DEB_WEXT);
lbs_deb_wext("vwrq->value %d\n", vwrq->value);
lbs_deb_wext("vwrq->fixed %d\n", vwrq->fixed);
if (vwrq->fixed && vwrq->value == -1)
goto out;
/* Auto rate? */
priv->enablehwauto = !vwrq->fixed;
if (vwrq->value == -1)
priv->cur_rate = 0;
else {
if (vwrq->value % 100000)
goto out;
new_rate = vwrq->value / 500000;
priv->cur_rate = new_rate;
/* the rest is only needed for lbs_set_data_rate() */
memset(rates, 0, sizeof(rates));
copy_active_data_rates(priv, rates);
if (!memchr(rates, new_rate, sizeof(rates))) {
lbs_pr_alert("fixed data rate 0x%X out of range\n",
new_rate);
goto out;
}
}
/* Try the newer command first (Firmware Spec 5.1 and above) */
ret = lbs_cmd_802_11_rate_adapt_rateset(priv, CMD_ACT_SET);
/* Fallback to older version */
if (ret)
ret = lbs_set_data_rate(priv, new_rate);
out:
lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
return ret;
}
static int lbs_get_rate(struct net_device *dev, struct iw_request_info *info,
struct iw_param *vwrq, char *extra)
{
struct lbs_private *priv = dev->priv;
lbs_deb_enter(LBS_DEB_WEXT);
if (priv->connect_status == LBS_CONNECTED) {
vwrq->value = priv->cur_rate * 500000;
if (priv->enablehwauto)
vwrq->fixed = 0;
else
vwrq->fixed = 1;
} else {
vwrq->fixed = 0;
vwrq->value = 0;
}
lbs_deb_leave(LBS_DEB_WEXT);
return 0;
}
static int lbs_set_mode(struct net_device *dev,
struct iw_request_info *info, u32 * uwrq, char *extra)
{
int ret = 0;
struct lbs_private *priv = dev->priv;
struct assoc_request * assoc_req;
lbs_deb_enter(LBS_DEB_WEXT);
if ( (*uwrq != IW_MODE_ADHOC)
&& (*uwrq != IW_MODE_INFRA)
&& (*uwrq != IW_MODE_AUTO)) {
lbs_deb_wext("Invalid mode: 0x%x\n", *uwrq);
ret = -EINVAL;
goto out;
}
mutex_lock(&priv->lock);
assoc_req = lbs_get_association_request(priv);
if (!assoc_req) {
ret = -ENOMEM;
lbs_cancel_association_work(priv);
} else {
assoc_req->mode = *uwrq;
set_bit(ASSOC_FLAG_MODE, &assoc_req->flags);
lbs_postpone_association_work(priv);
lbs_deb_wext("Switching to mode: 0x%x\n", *uwrq);
}
mutex_unlock(&priv->lock);
out:
lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
return ret;
}
/**
* @brief Get Encryption key
*
* @param dev A pointer to net_device structure
* @param info A pointer to iw_request_info structure
* @param vwrq A pointer to iw_param structure
* @param extra A pointer to extra data buf
* @return 0 --success, otherwise fail
*/
static int lbs_get_encode(struct net_device *dev,
struct iw_request_info *info,
struct iw_point *dwrq, u8 * extra)
{
struct lbs_private *priv = dev->priv;
int index = (dwrq->flags & IW_ENCODE_INDEX) - 1;
lbs_deb_enter(LBS_DEB_WEXT);
lbs_deb_wext("flags 0x%x, index %d, length %d, wep_tx_keyidx %d\n",
dwrq->flags, index, dwrq->length, priv->wep_tx_keyidx);
dwrq->flags = 0;
/* Authentication method */
switch (priv->secinfo.auth_mode) {
case IW_AUTH_ALG_OPEN_SYSTEM:
dwrq->flags = IW_ENCODE_OPEN;
break;
case IW_AUTH_ALG_SHARED_KEY:
case IW_AUTH_ALG_LEAP:
dwrq->flags = IW_ENCODE_RESTRICTED;
break;
default:
dwrq->flags = IW_ENCODE_DISABLED | IW_ENCODE_OPEN;
break;
}
memset(extra, 0, 16);
mutex_lock(&priv->lock);
/* Default to returning current transmit key */
if (index < 0)
index = priv->wep_tx_keyidx;
if ((priv->wep_keys[index].len) && priv->secinfo.wep_enabled) {
memcpy(extra, priv->wep_keys[index].key,
priv->wep_keys[index].len);
dwrq->length = priv->wep_keys[index].len;
dwrq->flags |= (index + 1);
/* Return WEP enabled */
dwrq->flags &= ~IW_ENCODE_DISABLED;
} else if ((priv->secinfo.WPAenabled)
|| (priv->secinfo.WPA2enabled)) {
/* return WPA enabled */
dwrq->flags &= ~IW_ENCODE_DISABLED;
dwrq->flags |= IW_ENCODE_NOKEY;
} else {
dwrq->flags |= IW_ENCODE_DISABLED;
}
mutex_unlock(&priv->lock);
lbs_deb_wext("key: %02x:%02x:%02x:%02x:%02x:%02x, keylen %d\n",
extra[0], extra[1], extra[2],
extra[3], extra[4], extra[5], dwrq->length);
lbs_deb_wext("return flags 0x%x\n", dwrq->flags);
lbs_deb_leave(LBS_DEB_WEXT);
return 0;
}
/**
* @brief Set Encryption key (internal)
*
* @param priv A pointer to private card structure
* @param key_material A pointer to key material
* @param key_length length of key material
* @param index key index to set
* @param set_tx_key Force set TX key (1 = yes, 0 = no)
* @return 0 --success, otherwise fail
*/
static int lbs_set_wep_key(struct assoc_request *assoc_req,
const char *key_material,
u16 key_length,
u16 index,
int set_tx_key)
{
int ret = 0;
struct enc_key *pkey;
lbs_deb_enter(LBS_DEB_WEXT);
/* Paranoid validation of key index */
if (index > 3) {
ret = -EINVAL;
goto out;
}
/* validate max key length */
if (key_length > KEY_LEN_WEP_104) {
ret = -EINVAL;
goto out;
}
pkey = &assoc_req->wep_keys[index];
if (key_length > 0) {
memset(pkey, 0, sizeof(struct enc_key));
pkey->type = KEY_TYPE_ID_WEP;
/* Standardize the key length */
pkey->len = (key_length > KEY_LEN_WEP_40) ?
KEY_LEN_WEP_104 : KEY_LEN_WEP_40;
memcpy(pkey->key, key_material, key_length);
}
if (set_tx_key) {
/* Ensure the chosen key is valid */
if (!pkey->len) {
lbs_deb_wext("key not set, so cannot enable it\n");
ret = -EINVAL;
goto out;
}
assoc_req->wep_tx_keyidx = index;
}
assoc_req->secinfo.wep_enabled = 1;
out:
lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
return ret;
}
static int validate_key_index(u16 def_index, u16 raw_index,
u16 *out_index, u16 *is_default)
{
if (!out_index || !is_default)
return -EINVAL;
/* Verify index if present, otherwise use default TX key index */
if (raw_index > 0) {
if (raw_index > 4)
return -EINVAL;
*out_index = raw_index - 1;
} else {
*out_index = def_index;
*is_default = 1;
}
return 0;
}
static void disable_wep(struct assoc_request *assoc_req)
{
int i;
lbs_deb_enter(LBS_DEB_WEXT);
/* Set Open System auth mode */
assoc_req->secinfo.auth_mode = IW_AUTH_ALG_OPEN_SYSTEM;
/* Clear WEP keys and mark WEP as disabled */
assoc_req->secinfo.wep_enabled = 0;
for (i = 0; i < 4; i++)
assoc_req->wep_keys[i].len = 0;
set_bit(ASSOC_FLAG_SECINFO, &assoc_req->flags);
set_bit(ASSOC_FLAG_WEP_KEYS, &assoc_req->flags);
lbs_deb_leave(LBS_DEB_WEXT);
}
static void disable_wpa(struct assoc_request *assoc_req)
{
lbs_deb_enter(LBS_DEB_WEXT);
memset(&assoc_req->wpa_mcast_key, 0, sizeof (struct enc_key));
assoc_req->wpa_mcast_key.flags = KEY_INFO_WPA_MCAST;
set_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc_req->flags);
memset(&assoc_req->wpa_unicast_key, 0, sizeof (struct enc_key));
assoc_req->wpa_unicast_key.flags = KEY_INFO_WPA_UNICAST;
set_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc_req->flags);
assoc_req->secinfo.WPAenabled = 0;
assoc_req->secinfo.WPA2enabled = 0;
set_bit(ASSOC_FLAG_SECINFO, &assoc_req->flags);
lbs_deb_leave(LBS_DEB_WEXT);
}
/**
* @brief Set Encryption key
*
* @param dev A pointer to net_device structure
* @param info A pointer to iw_request_info structure
* @param vwrq A pointer to iw_param structure
* @param extra A pointer to extra data buf
* @return 0 --success, otherwise fail
*/
static int lbs_set_encode(struct net_device *dev,
struct iw_request_info *info,
struct iw_point *dwrq, char *extra)
{
int ret = 0;
struct lbs_private *priv = dev->priv;
struct assoc_request * assoc_req;
u16 is_default = 0, index = 0, set_tx_key = 0;
lbs_deb_enter(LBS_DEB_WEXT);
mutex_lock(&priv->lock);
assoc_req = lbs_get_association_request(priv);
if (!assoc_req) {
ret = -ENOMEM;
goto out;
}
if (dwrq->flags & IW_ENCODE_DISABLED) {
disable_wep (assoc_req);
disable_wpa (assoc_req);
goto out;
}
ret = validate_key_index(assoc_req->wep_tx_keyidx,
(dwrq->flags & IW_ENCODE_INDEX),
&index, &is_default);
if (ret) {
ret = -EINVAL;
goto out;
}
/* If WEP isn't enabled, or if there is no key data but a valid
* index, set the TX key.
*/
if (!assoc_req->secinfo.wep_enabled || (dwrq->length == 0 && !is_default))
set_tx_key = 1;
ret = lbs_set_wep_key(assoc_req, extra, dwrq->length, index, set_tx_key);
if (ret)
goto out;
if (dwrq->length)
set_bit(ASSOC_FLAG_WEP_KEYS, &assoc_req->flags);
if (set_tx_key)
set_bit(ASSOC_FLAG_WEP_TX_KEYIDX, &assoc_req->flags);
if (dwrq->flags & IW_ENCODE_RESTRICTED) {
assoc_req->secinfo.auth_mode = IW_AUTH_ALG_SHARED_KEY;
} else if (dwrq->flags & IW_ENCODE_OPEN) {
assoc_req->secinfo.auth_mode = IW_AUTH_ALG_OPEN_SYSTEM;
}
out:
if (ret == 0) {
set_bit(ASSOC_FLAG_SECINFO, &assoc_req->flags);
lbs_postpone_association_work(priv);
} else {
lbs_cancel_association_work(priv);
}
mutex_unlock(&priv->lock);
lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
return ret;
}
/**
* @brief Get Extended Encryption key (WPA/802.1x and WEP)
*
* @param dev A pointer to net_device structure
* @param info A pointer to iw_request_info structure
* @param vwrq A pointer to iw_param structure
* @param extra A pointer to extra data buf
* @return 0 on success, otherwise failure
*/
static int lbs_get_encodeext(struct net_device *dev,
struct iw_request_info *info,
struct iw_point *dwrq,
char *extra)
{
int ret = -EINVAL;
struct lbs_private *priv = dev->priv;
struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
int index, max_key_len;
lbs_deb_enter(LBS_DEB_WEXT);
max_key_len = dwrq->length - sizeof(*ext);
if (max_key_len < 0)
goto out;
index = dwrq->flags & IW_ENCODE_INDEX;
if (index) {
if (index < 1 || index > 4)
goto out;
index--;
} else {
index = priv->wep_tx_keyidx;
}
if (!(ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY) &&
ext->alg != IW_ENCODE_ALG_WEP) {
if (index != 0 || priv->mode != IW_MODE_INFRA)
goto out;
}
dwrq->flags = index + 1;
memset(ext, 0, sizeof(*ext));
if ( !priv->secinfo.wep_enabled
&& !priv->secinfo.WPAenabled
&& !priv->secinfo.WPA2enabled) {
ext->alg = IW_ENCODE_ALG_NONE;
ext->key_len = 0;
dwrq->flags |= IW_ENCODE_DISABLED;
} else {
u8 *key = NULL;
if ( priv->secinfo.wep_enabled
&& !priv->secinfo.WPAenabled
&& !priv->secinfo.WPA2enabled) {
/* WEP */
ext->alg = IW_ENCODE_ALG_WEP;
ext->key_len = priv->wep_keys[index].len;
key = &priv->wep_keys[index].key[0];
} else if ( !priv->secinfo.wep_enabled
&& (priv->secinfo.WPAenabled ||
priv->secinfo.WPA2enabled)) {
/* WPA */
struct enc_key * pkey = NULL;
if ( priv->wpa_mcast_key.len
&& (priv->wpa_mcast_key.flags & KEY_INFO_WPA_ENABLED))
pkey = &priv->wpa_mcast_key;
else if ( priv->wpa_unicast_key.len
&& (priv->wpa_unicast_key.flags & KEY_INFO_WPA_ENABLED))
pkey = &priv->wpa_unicast_key;
if (pkey) {
if (pkey->type == KEY_TYPE_ID_AES) {
ext->alg = IW_ENCODE_ALG_CCMP;
} else {
ext->alg = IW_ENCODE_ALG_TKIP;
}
ext->key_len = pkey->len;
key = &pkey->key[0];
} else {
ext->alg = IW_ENCODE_ALG_TKIP;
ext->key_len = 0;
}
} else {
goto out;
}
if (ext->key_len > max_key_len) {
ret = -E2BIG;
goto out;
}
if (ext->key_len)
memcpy(ext->key, key, ext->key_len);
else
dwrq->flags |= IW_ENCODE_NOKEY;
dwrq->flags |= IW_ENCODE_ENABLED;
}
ret = 0;
out:
lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
return ret;
}
/**
* @brief Set Encryption key Extended (WPA/802.1x and WEP)
*
* @param dev A pointer to net_device structure
* @param info A pointer to iw_request_info structure
* @param vwrq A pointer to iw_param structure
* @param extra A pointer to extra data buf
* @return 0 --success, otherwise fail
*/
static int lbs_set_encodeext(struct net_device *dev,
struct iw_request_info *info,
struct iw_point *dwrq,
char *extra)
{
int ret = 0;
struct lbs_private *priv = dev->priv;
struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
int alg = ext->alg;
struct assoc_request * assoc_req;
lbs_deb_enter(LBS_DEB_WEXT);
mutex_lock(&priv->lock);
assoc_req = lbs_get_association_request(priv);
if (!assoc_req) {
ret = -ENOMEM;
goto out;
}
if ((alg == IW_ENCODE_ALG_NONE) || (dwrq->flags & IW_ENCODE_DISABLED)) {
disable_wep (assoc_req);
disable_wpa (assoc_req);
} else if (alg == IW_ENCODE_ALG_WEP) {
u16 is_default = 0, index, set_tx_key = 0;
ret = validate_key_index(assoc_req->wep_tx_keyidx,
(dwrq->flags & IW_ENCODE_INDEX),
&index, &is_default);
if (ret)
goto out;
/* If WEP isn't enabled, or if there is no key data but a valid
* index, or if the set-TX-key flag was passed, set the TX key.
*/
if ( !assoc_req->secinfo.wep_enabled
|| (dwrq->length == 0 && !is_default)
|| (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY))
set_tx_key = 1;
/* Copy key to driver */
ret = lbs_set_wep_key(assoc_req, ext->key, ext->key_len, index,
set_tx_key);
if (ret)
goto out;
if (dwrq->flags & IW_ENCODE_RESTRICTED) {
assoc_req->secinfo.auth_mode = IW_AUTH_ALG_SHARED_KEY;
} else if (dwrq->flags & IW_ENCODE_OPEN) {
assoc_req->secinfo.auth_mode = IW_AUTH_ALG_OPEN_SYSTEM;
}
/* Mark the various WEP bits as modified */
set_bit(ASSOC_FLAG_SECINFO, &assoc_req->flags);
if (dwrq->length)
set_bit(ASSOC_FLAG_WEP_KEYS, &assoc_req->flags);
if (set_tx_key)
set_bit(ASSOC_FLAG_WEP_TX_KEYIDX, &assoc_req->flags);
} else if ((alg == IW_ENCODE_ALG_TKIP) || (alg == IW_ENCODE_ALG_CCMP)) {
struct enc_key * pkey;
/* validate key length */
if (((alg == IW_ENCODE_ALG_TKIP)
&& (ext->key_len != KEY_LEN_WPA_TKIP))
|| ((alg == IW_ENCODE_ALG_CCMP)
&& (ext->key_len != KEY_LEN_WPA_AES))) {
lbs_deb_wext("invalid size %d for key of alg "
"type %d\n",
ext->key_len,
alg);
ret = -EINVAL;
goto out;
}
if (ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY) {
pkey = &assoc_req->wpa_mcast_key;
set_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc_req->flags);
} else {
pkey = &assoc_req->wpa_unicast_key;
set_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc_req->flags);
}
memset(pkey, 0, sizeof (struct enc_key));
memcpy(pkey->key, ext->key, ext->key_len);
pkey->len = ext->key_len;
if (pkey->len)
pkey->flags |= KEY_INFO_WPA_ENABLED;
/* Do this after zeroing key structure */
if (ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY) {
pkey->flags |= KEY_INFO_WPA_MCAST;
} else {
pkey->flags |= KEY_INFO_WPA_UNICAST;
}
if (alg == IW_ENCODE_ALG_TKIP) {
pkey->type = KEY_TYPE_ID_TKIP;
} else if (alg == IW_ENCODE_ALG_CCMP) {
pkey->type = KEY_TYPE_ID_AES;
}
/* If WPA isn't enabled yet, do that now */
if ( assoc_req->secinfo.WPAenabled == 0
&& assoc_req->secinfo.WPA2enabled == 0) {
assoc_req->secinfo.WPAenabled = 1;
assoc_req->secinfo.WPA2enabled = 1;
set_bit(ASSOC_FLAG_SECINFO, &assoc_req->flags);
}
disable_wep (assoc_req);
}
out:
if (ret == 0) {
lbs_postpone_association_work(priv);
} else {
lbs_cancel_association_work(priv);
}
mutex_unlock(&priv->lock);
lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
return ret;
}
static int lbs_set_genie(struct net_device *dev,
struct iw_request_info *info,
struct iw_point *dwrq,
char *extra)
{
struct lbs_private *priv = dev->priv;
int ret = 0;
struct assoc_request * assoc_req;
lbs_deb_enter(LBS_DEB_WEXT);
mutex_lock(&priv->lock);
assoc_req = lbs_get_association_request(priv);
if (!assoc_req) {
ret = -ENOMEM;
goto out;
}
if (dwrq->length > MAX_WPA_IE_LEN ||
(dwrq->length && extra == NULL)) {
ret = -EINVAL;
goto out;
}
if (dwrq->length) {
memcpy(&assoc_req->wpa_ie[0], extra, dwrq->length);
assoc_req->wpa_ie_len = dwrq->length;
} else {
memset(&assoc_req->wpa_ie[0], 0, sizeof(priv->wpa_ie));
assoc_req->wpa_ie_len = 0;
}
out:
if (ret == 0) {
set_bit(ASSOC_FLAG_WPA_IE, &assoc_req->flags);
lbs_postpone_association_work(priv);
} else {
lbs_cancel_association_work(priv);
}
mutex_unlock(&priv->lock);
lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
return ret;
}
static int lbs_get_genie(struct net_device *dev,
struct iw_request_info *info,
struct iw_point *dwrq,
char *extra)
{
int ret = 0;
struct lbs_private *priv = dev->priv;
lbs_deb_enter(LBS_DEB_WEXT);
if (priv->wpa_ie_len == 0) {
dwrq->length = 0;
goto out;
}
if (dwrq->length < priv->wpa_ie_len) {
ret = -E2BIG;
goto out;
}
dwrq->length = priv->wpa_ie_len;
memcpy(extra, &priv->wpa_ie[0], priv->wpa_ie_len);
out:
lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
return ret;
}
static int lbs_set_auth(struct net_device *dev,
struct iw_request_info *info,
struct iw_param *dwrq,
char *extra)
{
struct lbs_private *priv = dev->priv;
struct assoc_request * assoc_req;
int ret = 0;
int updated = 0;
lbs_deb_enter(LBS_DEB_WEXT);
mutex_lock(&priv->lock);
assoc_req = lbs_get_association_request(priv);
if (!assoc_req) {
ret = -ENOMEM;
goto out;
}
switch (dwrq->flags & IW_AUTH_INDEX) {
case IW_AUTH_TKIP_COUNTERMEASURES:
case IW_AUTH_CIPHER_PAIRWISE:
case IW_AUTH_CIPHER_GROUP:
case IW_AUTH_KEY_MGMT:
case IW_AUTH_DROP_UNENCRYPTED:
/*
* libertas does not use these parameters
*/
break;
case IW_AUTH_WPA_VERSION:
if (dwrq->value & IW_AUTH_WPA_VERSION_DISABLED) {
assoc_req->secinfo.WPAenabled = 0;
assoc_req->secinfo.WPA2enabled = 0;
disable_wpa (assoc_req);
}
if (dwrq->value & IW_AUTH_WPA_VERSION_WPA) {
assoc_req->secinfo.WPAenabled = 1;
assoc_req->secinfo.wep_enabled = 0;
assoc_req->secinfo.auth_mode = IW_AUTH_ALG_OPEN_SYSTEM;
}
if (dwrq->value & IW_AUTH_WPA_VERSION_WPA2) {
assoc_req->secinfo.WPA2enabled = 1;
assoc_req->secinfo.wep_enabled = 0;
assoc_req->secinfo.auth_mode = IW_AUTH_ALG_OPEN_SYSTEM;
}
updated = 1;
break;
case IW_AUTH_80211_AUTH_ALG:
if (dwrq->value & IW_AUTH_ALG_SHARED_KEY) {
assoc_req->secinfo.auth_mode = IW_AUTH_ALG_SHARED_KEY;
} else if (dwrq->value & IW_AUTH_ALG_OPEN_SYSTEM) {
assoc_req->secinfo.auth_mode = IW_AUTH_ALG_OPEN_SYSTEM;
} else if (dwrq->value & IW_AUTH_ALG_LEAP) {
assoc_req->secinfo.auth_mode = IW_AUTH_ALG_LEAP;
} else {
ret = -EINVAL;
}
updated = 1;
break;
case IW_AUTH_WPA_ENABLED:
if (dwrq->value) {
if (!assoc_req->secinfo.WPAenabled &&
!assoc_req->secinfo.WPA2enabled) {
assoc_req->secinfo.WPAenabled = 1;
assoc_req->secinfo.WPA2enabled = 1;
assoc_req->secinfo.wep_enabled = 0;
assoc_req->secinfo.auth_mode = IW_AUTH_ALG_OPEN_SYSTEM;
}
} else {
assoc_req->secinfo.WPAenabled = 0;
assoc_req->secinfo.WPA2enabled = 0;
disable_wpa (assoc_req);
}
updated = 1;
break;
default:
ret = -EOPNOTSUPP;
break;
}
out:
if (ret == 0) {
if (updated)
set_bit(ASSOC_FLAG_SECINFO, &assoc_req->flags);
lbs_postpone_association_work(priv);
} else if (ret != -EOPNOTSUPP) {
lbs_cancel_association_work(priv);
}
mutex_unlock(&priv->lock);
lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
return ret;
}
static int lbs_get_auth(struct net_device *dev,
struct iw_request_info *info,
struct iw_param *dwrq,
char *extra)
{
int ret = 0;
struct lbs_private *priv = dev->priv;
lbs_deb_enter(LBS_DEB_WEXT);
switch (dwrq->flags & IW_AUTH_INDEX) {
case IW_AUTH_WPA_VERSION:
dwrq->value = 0;
if (priv->secinfo.WPAenabled)
dwrq->value |= IW_AUTH_WPA_VERSION_WPA;
if (priv->secinfo.WPA2enabled)
dwrq->value |= IW_AUTH_WPA_VERSION_WPA2;
if (!dwrq->value)
dwrq->value |= IW_AUTH_WPA_VERSION_DISABLED;
break;
case IW_AUTH_80211_AUTH_ALG:
dwrq->value = priv->secinfo.auth_mode;
break;
case IW_AUTH_WPA_ENABLED:
if (priv->secinfo.WPAenabled && priv->secinfo.WPA2enabled)
dwrq->value = 1;
break;
default:
ret = -EOPNOTSUPP;
}
lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
return ret;
}
static int lbs_set_txpow(struct net_device *dev, struct iw_request_info *info,
struct iw_param *vwrq, char *extra)
{
int ret = 0;
struct lbs_private *priv = dev->priv;
u16 dbm;
lbs_deb_enter(LBS_DEB_WEXT);
if (vwrq->disabled) {
lbs_radio_ioctl(priv, RADIO_OFF);
return 0;
}
priv->preamble = CMD_TYPE_AUTO_PREAMBLE;
lbs_radio_ioctl(priv, RADIO_ON);
/* Userspace check in iwrange if it should use dBm or mW,
* therefore this should never happen... Jean II */
if ((vwrq->flags & IW_TXPOW_TYPE) == IW_TXPOW_MWATT) {
return -EOPNOTSUPP;
} else
dbm = (u16) vwrq->value;
/* auto tx power control */
if (vwrq->fixed == 0)
dbm = 0xffff;
lbs_deb_wext("txpower set %d dbm\n", dbm);
ret = lbs_prepare_and_send_command(priv,
CMD_802_11_RF_TX_POWER,
CMD_ACT_TX_POWER_OPT_SET_LOW,
CMD_OPTION_WAITFORRSP, 0, (void *)&dbm);
lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
return ret;
}
static int lbs_get_essid(struct net_device *dev, struct iw_request_info *info,
struct iw_point *dwrq, char *extra)
{
struct lbs_private *priv = dev->priv;
lbs_deb_enter(LBS_DEB_WEXT);
/*
* Note : if dwrq->flags != 0, we should get the relevant SSID from
* the SSID list...
*/
/*
* Get the current SSID
*/
if (priv->connect_status == LBS_CONNECTED) {
memcpy(extra, priv->curbssparams.ssid,
priv->curbssparams.ssid_len);
extra[priv->curbssparams.ssid_len] = '\0';
} else {
memset(extra, 0, 32);
extra[priv->curbssparams.ssid_len] = '\0';
}
/*
* If none, we may want to get the one that was set
*/
dwrq->length = priv->curbssparams.ssid_len;
dwrq->flags = 1; /* active */
lbs_deb_leave(LBS_DEB_WEXT);
return 0;
}
static int lbs_set_essid(struct net_device *dev, struct iw_request_info *info,
struct iw_point *dwrq, char *extra)
{
struct lbs_private *priv = dev->priv;
int ret = 0;
u8 ssid[IW_ESSID_MAX_SIZE];
u8 ssid_len = 0;
struct assoc_request * assoc_req;
int in_ssid_len = dwrq->length;
lbs_deb_enter(LBS_DEB_WEXT);
/* Check the size of the string */
if (in_ssid_len > IW_ESSID_MAX_SIZE) {
ret = -E2BIG;
goto out;
}
memset(&ssid, 0, sizeof(ssid));
if (!dwrq->flags || !in_ssid_len) {
/* "any" SSID requested; leave SSID blank */
} else {
/* Specific SSID requested */
memcpy(&ssid, extra, in_ssid_len);
ssid_len = in_ssid_len;
}
if (!ssid_len) {
lbs_deb_wext("requested any SSID\n");
} else {
lbs_deb_wext("requested SSID '%s'\n",
escape_essid(ssid, ssid_len));
}
out:
mutex_lock(&priv->lock);
if (ret == 0) {
/* Get or create the current association request */
assoc_req = lbs_get_association_request(priv);
if (!assoc_req) {
ret = -ENOMEM;
} else {
/* Copy the SSID to the association request */
memcpy(&assoc_req->ssid, &ssid, IW_ESSID_MAX_SIZE);
assoc_req->ssid_len = ssid_len;
set_bit(ASSOC_FLAG_SSID, &assoc_req->flags);
lbs_postpone_association_work(priv);
}
}
/* Cancel the association request if there was an error */
if (ret != 0) {
lbs_cancel_association_work(priv);
}
mutex_unlock(&priv->lock);
lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
return ret;
}
static int lbs_mesh_get_essid(struct net_device *dev,
struct iw_request_info *info,
struct iw_point *dwrq, char *extra)
{
struct lbs_private *priv = dev->priv;
lbs_deb_enter(LBS_DEB_WEXT);
memcpy(extra, priv->mesh_ssid, priv->mesh_ssid_len);
dwrq->length = priv->mesh_ssid_len;
dwrq->flags = 1; /* active */
lbs_deb_leave(LBS_DEB_WEXT);
return 0;
}
static int lbs_mesh_set_essid(struct net_device *dev,
struct iw_request_info *info,
struct iw_point *dwrq, char *extra)
{
struct lbs_private *priv = dev->priv;
int ret = 0;
lbs_deb_enter(LBS_DEB_WEXT);
/* Check the size of the string */
if (dwrq->length > IW_ESSID_MAX_SIZE) {
ret = -E2BIG;
goto out;
}
if (!dwrq->flags || !dwrq->length) {
ret = -EINVAL;
goto out;
} else {
/* Specific SSID requested */
memcpy(priv->mesh_ssid, extra, dwrq->length);
priv->mesh_ssid_len = dwrq->length;
}
lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_START,
priv->curbssparams.channel);
out:
lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
return ret;
}
/**
* @brief Connect to the AP or Ad-hoc Network with specific bssid
*
* @param dev A pointer to net_device structure
* @param info A pointer to iw_request_info structure
* @param awrq A pointer to iw_param structure
* @param extra A pointer to extra data buf
* @return 0 --success, otherwise fail
*/
static int lbs_set_wap(struct net_device *dev, struct iw_request_info *info,
struct sockaddr *awrq, char *extra)
{
struct lbs_private *priv = dev->priv;
struct assoc_request * assoc_req;
int ret = 0;
DECLARE_MAC_BUF(mac);
lbs_deb_enter(LBS_DEB_WEXT);
if (awrq->sa_family != ARPHRD_ETHER)
return -EINVAL;
lbs_deb_wext("ASSOC: WAP: sa_data %s\n", print_mac(mac, awrq->sa_data));
mutex_lock(&priv->lock);
/* Get or create the current association request */
assoc_req = lbs_get_association_request(priv);
if (!assoc_req) {
lbs_cancel_association_work(priv);
ret = -ENOMEM;
} else {
/* Copy the BSSID to the association request */
memcpy(&assoc_req->bssid, awrq->sa_data, ETH_ALEN);
set_bit(ASSOC_FLAG_BSSID, &assoc_req->flags);
lbs_postpone_association_work(priv);
}
mutex_unlock(&priv->lock);
return ret;
}
/*
* iwconfig settable callbacks
*/
static const iw_handler lbs_handler[] = {
(iw_handler) NULL, /* SIOCSIWCOMMIT */
(iw_handler) lbs_get_name, /* SIOCGIWNAME */
(iw_handler) NULL, /* SIOCSIWNWID */
(iw_handler) NULL, /* SIOCGIWNWID */
(iw_handler) lbs_set_freq, /* SIOCSIWFREQ */
(iw_handler) lbs_get_freq, /* SIOCGIWFREQ */
(iw_handler) lbs_set_mode, /* SIOCSIWMODE */
(iw_handler) lbs_get_mode, /* SIOCGIWMODE */
(iw_handler) NULL, /* SIOCSIWSENS */
(iw_handler) NULL, /* SIOCGIWSENS */
(iw_handler) NULL, /* SIOCSIWRANGE */
(iw_handler) lbs_get_range, /* SIOCGIWRANGE */
(iw_handler) NULL, /* SIOCSIWPRIV */
(iw_handler) NULL, /* SIOCGIWPRIV */
(iw_handler) NULL, /* SIOCSIWSTATS */
(iw_handler) NULL, /* SIOCGIWSTATS */
iw_handler_set_spy, /* SIOCSIWSPY */
iw_handler_get_spy, /* SIOCGIWSPY */
iw_handler_set_thrspy, /* SIOCSIWTHRSPY */
iw_handler_get_thrspy, /* SIOCGIWTHRSPY */
(iw_handler) lbs_set_wap, /* SIOCSIWAP */
(iw_handler) lbs_get_wap, /* SIOCGIWAP */
(iw_handler) NULL, /* SIOCSIWMLME */
(iw_handler) NULL, /* SIOCGIWAPLIST - deprecated */
(iw_handler) lbs_set_scan, /* SIOCSIWSCAN */
(iw_handler) lbs_get_scan, /* SIOCGIWSCAN */
(iw_handler) lbs_set_essid, /* SIOCSIWESSID */
(iw_handler) lbs_get_essid, /* SIOCGIWESSID */
(iw_handler) lbs_set_nick, /* SIOCSIWNICKN */
(iw_handler) lbs_get_nick, /* SIOCGIWNICKN */
(iw_handler) NULL, /* -- hole -- */
(iw_handler) NULL, /* -- hole -- */
(iw_handler) lbs_set_rate, /* SIOCSIWRATE */
(iw_handler) lbs_get_rate, /* SIOCGIWRATE */
(iw_handler) lbs_set_rts, /* SIOCSIWRTS */
(iw_handler) lbs_get_rts, /* SIOCGIWRTS */
(iw_handler) lbs_set_frag, /* SIOCSIWFRAG */
(iw_handler) lbs_get_frag, /* SIOCGIWFRAG */
(iw_handler) lbs_set_txpow, /* SIOCSIWTXPOW */
(iw_handler) lbs_get_txpow, /* SIOCGIWTXPOW */
(iw_handler) lbs_set_retry, /* SIOCSIWRETRY */
(iw_handler) lbs_get_retry, /* SIOCGIWRETRY */
(iw_handler) lbs_set_encode, /* SIOCSIWENCODE */
(iw_handler) lbs_get_encode, /* SIOCGIWENCODE */
(iw_handler) lbs_set_power, /* SIOCSIWPOWER */
(iw_handler) lbs_get_power, /* SIOCGIWPOWER */
(iw_handler) NULL, /* -- hole -- */
(iw_handler) NULL, /* -- hole -- */
(iw_handler) lbs_set_genie, /* SIOCSIWGENIE */
(iw_handler) lbs_get_genie, /* SIOCGIWGENIE */
(iw_handler) lbs_set_auth, /* SIOCSIWAUTH */
(iw_handler) lbs_get_auth, /* SIOCGIWAUTH */
(iw_handler) lbs_set_encodeext,/* SIOCSIWENCODEEXT */
(iw_handler) lbs_get_encodeext,/* SIOCGIWENCODEEXT */
(iw_handler) NULL, /* SIOCSIWPMKSA */
};
static const iw_handler mesh_wlan_handler[] = {
(iw_handler) NULL, /* SIOCSIWCOMMIT */
(iw_handler) lbs_get_name, /* SIOCGIWNAME */
(iw_handler) NULL, /* SIOCSIWNWID */
(iw_handler) NULL, /* SIOCGIWNWID */
(iw_handler) lbs_mesh_set_freq, /* SIOCSIWFREQ */
(iw_handler) lbs_get_freq, /* SIOCGIWFREQ */
(iw_handler) NULL, /* SIOCSIWMODE */
(iw_handler) mesh_wlan_get_mode, /* SIOCGIWMODE */
(iw_handler) NULL, /* SIOCSIWSENS */
(iw_handler) NULL, /* SIOCGIWSENS */
(iw_handler) NULL, /* SIOCSIWRANGE */
(iw_handler) lbs_get_range, /* SIOCGIWRANGE */
(iw_handler) NULL, /* SIOCSIWPRIV */
(iw_handler) NULL, /* SIOCGIWPRIV */
(iw_handler) NULL, /* SIOCSIWSTATS */
(iw_handler) NULL, /* SIOCGIWSTATS */
iw_handler_set_spy, /* SIOCSIWSPY */
iw_handler_get_spy, /* SIOCGIWSPY */
iw_handler_set_thrspy, /* SIOCSIWTHRSPY */
iw_handler_get_thrspy, /* SIOCGIWTHRSPY */
(iw_handler) NULL, /* SIOCSIWAP */
(iw_handler) NULL, /* SIOCGIWAP */
(iw_handler) NULL, /* SIOCSIWMLME */
(iw_handler) NULL, /* SIOCGIWAPLIST - deprecated */
(iw_handler) lbs_set_scan, /* SIOCSIWSCAN */
(iw_handler) lbs_get_scan, /* SIOCGIWSCAN */
(iw_handler) lbs_mesh_set_essid,/* SIOCSIWESSID */
(iw_handler) lbs_mesh_get_essid,/* SIOCGIWESSID */
(iw_handler) NULL, /* SIOCSIWNICKN */
(iw_handler) mesh_get_nick, /* SIOCGIWNICKN */
(iw_handler) NULL, /* -- hole -- */
(iw_handler) NULL, /* -- hole -- */
(iw_handler) lbs_set_rate, /* SIOCSIWRATE */
(iw_handler) lbs_get_rate, /* SIOCGIWRATE */
(iw_handler) lbs_set_rts, /* SIOCSIWRTS */
(iw_handler) lbs_get_rts, /* SIOCGIWRTS */
(iw_handler) lbs_set_frag, /* SIOCSIWFRAG */
(iw_handler) lbs_get_frag, /* SIOCGIWFRAG */
(iw_handler) lbs_set_txpow, /* SIOCSIWTXPOW */
(iw_handler) lbs_get_txpow, /* SIOCGIWTXPOW */
(iw_handler) lbs_set_retry, /* SIOCSIWRETRY */
(iw_handler) lbs_get_retry, /* SIOCGIWRETRY */
(iw_handler) lbs_set_encode, /* SIOCSIWENCODE */
(iw_handler) lbs_get_encode, /* SIOCGIWENCODE */
(iw_handler) lbs_set_power, /* SIOCSIWPOWER */
(iw_handler) lbs_get_power, /* SIOCGIWPOWER */
(iw_handler) NULL, /* -- hole -- */
(iw_handler) NULL, /* -- hole -- */
(iw_handler) lbs_set_genie, /* SIOCSIWGENIE */
(iw_handler) lbs_get_genie, /* SIOCGIWGENIE */
(iw_handler) lbs_set_auth, /* SIOCSIWAUTH */
(iw_handler) lbs_get_auth, /* SIOCGIWAUTH */
(iw_handler) lbs_set_encodeext,/* SIOCSIWENCODEEXT */
(iw_handler) lbs_get_encodeext,/* SIOCGIWENCODEEXT */
(iw_handler) NULL, /* SIOCSIWPMKSA */
};
struct iw_handler_def lbs_handler_def = {
.num_standard = ARRAY_SIZE(lbs_handler),
.standard = (iw_handler *) lbs_handler,
.get_wireless_stats = lbs_get_wireless_stats,
};
struct iw_handler_def mesh_handler_def = {
.num_standard = ARRAY_SIZE(mesh_wlan_handler),
.standard = (iw_handler *) mesh_wlan_handler,
.get_wireless_stats = lbs_get_wireless_stats,
};
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