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/*
* cfg80211 - wext compat code
*
* This is temporary code until all wireless functionality is migrated
* into cfg80211, when that happens all the exports here go away and
* we directly assign the wireless handlers of wireless interfaces.
*
* Copyright 2008 Johannes Berg <johannes@sipsolutions.net>
*/
#include <linux/wireless.h>
#include <linux/nl80211.h>
#include <linux/if_arp.h>
#include <net/iw_handler.h>
#include <net/wireless.h>
#include <net/cfg80211.h>
#include "core.h"
int cfg80211_wext_giwname(struct net_device *dev,
struct iw_request_info *info,
char *name, char *extra)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct ieee80211_supported_band *sband;
bool is_ht = false, is_a = false, is_b = false, is_g = false;
if (!wdev)
return -EOPNOTSUPP;
sband = wdev->wiphy->bands[IEEE80211_BAND_5GHZ];
if (sband) {
is_a = true;
is_ht |= sband->ht_cap.ht_supported;
}
sband = wdev->wiphy->bands[IEEE80211_BAND_2GHZ];
if (sband) {
int i;
/* Check for mandatory rates */
for (i = 0; i < sband->n_bitrates; i++) {
if (sband->bitrates[i].bitrate == 10)
is_b = true;
if (sband->bitrates[i].bitrate == 60)
is_g = true;
}
is_ht |= sband->ht_cap.ht_supported;
}
strcpy(name, "IEEE 802.11");
if (is_a)
strcat(name, "a");
if (is_b)
strcat(name, "b");
if (is_g)
strcat(name, "g");
if (is_ht)
strcat(name, "n");
return 0;
}
EXPORT_SYMBOL(cfg80211_wext_giwname);
int cfg80211_wext_siwmode(struct net_device *dev, struct iw_request_info *info,
u32 *mode, char *extra)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct cfg80211_registered_device *rdev;
struct vif_params vifparams;
enum nl80211_iftype type;
int ret;
if (!wdev)
return -EOPNOTSUPP;
rdev = wiphy_to_dev(wdev->wiphy);
if (!rdev->ops->change_virtual_intf)
return -EOPNOTSUPP;
/* don't support changing VLANs, you just re-create them */
if (wdev->iftype == NL80211_IFTYPE_AP_VLAN)
return -EOPNOTSUPP;
switch (*mode) {
case IW_MODE_INFRA:
type = NL80211_IFTYPE_STATION;
break;
case IW_MODE_ADHOC:
type = NL80211_IFTYPE_ADHOC;
break;
case IW_MODE_REPEAT:
type = NL80211_IFTYPE_WDS;
break;
case IW_MODE_MONITOR:
type = NL80211_IFTYPE_MONITOR;
break;
default:
return -EINVAL;
}
if (type == wdev->iftype)
return 0;
memset(&vifparams, 0, sizeof(vifparams));
ret = rdev->ops->change_virtual_intf(wdev->wiphy, dev->ifindex, type,
NULL, &vifparams);
WARN_ON(!ret && wdev->iftype != type);
return ret;
}
EXPORT_SYMBOL(cfg80211_wext_siwmode);
int cfg80211_wext_giwmode(struct net_device *dev, struct iw_request_info *info,
u32 *mode, char *extra)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
if (!wdev)
return -EOPNOTSUPP;
switch (wdev->iftype) {
case NL80211_IFTYPE_AP:
*mode = IW_MODE_MASTER;
break;
case NL80211_IFTYPE_STATION:
*mode = IW_MODE_INFRA;
break;
case NL80211_IFTYPE_ADHOC:
*mode = IW_MODE_ADHOC;
break;
case NL80211_IFTYPE_MONITOR:
*mode = IW_MODE_MONITOR;
break;
case NL80211_IFTYPE_WDS:
*mode = IW_MODE_REPEAT;
break;
case NL80211_IFTYPE_AP_VLAN:
*mode = IW_MODE_SECOND; /* FIXME */
break;
default:
*mode = IW_MODE_AUTO;
break;
}
return 0;
}
EXPORT_SYMBOL(cfg80211_wext_giwmode);
int cfg80211_wext_giwrange(struct net_device *dev,
struct iw_request_info *info,
struct iw_point *data, char *extra)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct iw_range *range = (struct iw_range *) extra;
enum ieee80211_band band;
int 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->encoding_size[0] = 5;
range->encoding_size[1] = 13;
range->num_encoding_sizes = 2;
range->max_encoding_tokens = 4;
range->max_qual.updated = IW_QUAL_NOISE_INVALID;
switch (wdev->wiphy->signal_type) {
case CFG80211_SIGNAL_TYPE_NONE:
break;
case CFG80211_SIGNAL_TYPE_MBM:
range->max_qual.level = -110;
range->max_qual.qual = 70;
range->avg_qual.qual = 35;
range->max_qual.updated |= IW_QUAL_DBM;
range->max_qual.updated |= IW_QUAL_QUAL_UPDATED;
range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED;
break;
case CFG80211_SIGNAL_TYPE_UNSPEC:
range->max_qual.level = 100;
range->max_qual.qual = 100;
range->avg_qual.qual = 50;
range->max_qual.updated |= IW_QUAL_QUAL_UPDATED;
range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED;
break;
}
range->avg_qual.level = range->max_qual.level / 2;
range->avg_qual.noise = range->max_qual.noise / 2;
range->avg_qual.updated = range->max_qual.updated;
range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_WPA2 |
IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP;
for (band = 0; band < IEEE80211_NUM_BANDS; band ++) {
int i;
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);
range->scan_capa |= IW_SCAN_CAPA_ESSID;
return 0;
}
EXPORT_SYMBOL(cfg80211_wext_giwrange);
int cfg80211_wext_siwmlme(struct net_device *dev,
struct iw_request_info *info,
struct iw_point *data, char *extra)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct iw_mlme *mlme = (struct iw_mlme *)extra;
struct cfg80211_registered_device *rdev;
union {
struct cfg80211_disassoc_request disassoc;
struct cfg80211_deauth_request deauth;
} cmd;
if (!wdev)
return -EOPNOTSUPP;
rdev = wiphy_to_dev(wdev->wiphy);
if (wdev->iftype != NL80211_IFTYPE_STATION)
return -EINVAL;
if (mlme->addr.sa_family != ARPHRD_ETHER)
return -EINVAL;
memset(&cmd, 0, sizeof(cmd));
switch (mlme->cmd) {
case IW_MLME_DEAUTH:
if (!rdev->ops->deauth)
return -EOPNOTSUPP;
cmd.deauth.peer_addr = mlme->addr.sa_data;
cmd.deauth.reason_code = mlme->reason_code;
return rdev->ops->deauth(wdev->wiphy, dev, &cmd.deauth);
case IW_MLME_DISASSOC:
if (!rdev->ops->disassoc)
return -EOPNOTSUPP;
cmd.disassoc.peer_addr = mlme->addr.sa_data;
cmd.disassoc.reason_code = mlme->reason_code;
return rdev->ops->disassoc(wdev->wiphy, dev, &cmd.disassoc);
default:
return -EOPNOTSUPP;
}
}
EXPORT_SYMBOL(cfg80211_wext_siwmlme);
/**
* cfg80211_wext_freq - get wext frequency for non-"auto"
* @wiphy: the wiphy
* @freq: the wext freq encoding
*
* Returns a channel, %NULL for auto, or an ERR_PTR for errors!
*/
struct ieee80211_channel *cfg80211_wext_freq(struct wiphy *wiphy,
struct iw_freq *freq)
{
if (freq->e == 0) {
if (freq->m < 0)
return NULL;
else
return ieee80211_get_channel(wiphy,
ieee80211_channel_to_frequency(freq->m));
} else {
int i, div = 1000000;
for (i = 0; i < freq->e; i++)
div /= 10;
if (div > 0)
return ieee80211_get_channel(wiphy, freq->m / div);
else
return ERR_PTR(-EINVAL);
}
}
EXPORT_SYMBOL(cfg80211_wext_freq);
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