/* * Copyright 2002-2005, Instant802 Networks, Inc. * Copyright 2005-2006, Devicescape Software, Inc. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ #include <linux/module.h> #include <linux/init.h> #include <linux/netdevice.h> #include <linux/types.h> #include <linux/slab.h> #include <linux/skbuff.h> #include <linux/etherdevice.h> #include <linux/if_arp.h> #include <linux/wireless.h> #include <net/iw_handler.h> #include <asm/uaccess.h> #include <net/mac80211.h> #include "ieee80211_i.h" #include "ieee80211_led.h" #include "ieee80211_rate.h" #include "wpa.h" #include "aes_ccm.h" static int ieee80211_set_encryption(struct net_device *dev, u8 *sta_addr, int idx, int alg, int remove, int set_tx_key, const u8 *_key, size_t key_len) { struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); struct sta_info *sta; struct ieee80211_key *key; struct ieee80211_sub_if_data *sdata; sdata = IEEE80211_DEV_TO_SUB_IF(dev); if (idx < 0 || idx >= NUM_DEFAULT_KEYS) { printk(KERN_DEBUG "%s: set_encrypt - invalid idx=%d\n", dev->name, idx); return -EINVAL; } if (remove) { if (is_broadcast_ether_addr(sta_addr)) { key = sdata->keys[idx]; } else { sta = sta_info_get(local, sta_addr); if (!sta) return -ENOENT; key = sta->key; } if (!key) return -ENOENT; ieee80211_key_free(key); return 0; } else { key = ieee80211_key_alloc(alg, idx, key_len, _key); if (!key) return -ENOMEM; sta = NULL; if (!is_broadcast_ether_addr(sta_addr)) { set_tx_key = 0; /* * According to the standard, the key index of a * pairwise key must be zero. However, some AP are * broken when it comes to WEP key indices, so we * work around this. */ if (idx != 0 && alg != ALG_WEP) { ieee80211_key_free(key); return -EINVAL; } sta = sta_info_get(local, sta_addr); if (!sta) { ieee80211_key_free(key); return -ENOENT; } } ieee80211_key_link(key, sdata, sta); if (set_tx_key || (!sta && !sdata->default_key && key)) ieee80211_set_default_key(sdata, idx); } return 0; } static int ieee80211_ioctl_siwgenie(struct net_device *dev, struct iw_request_info *info, struct iw_point *data, char *extra) { struct ieee80211_sub_if_data *sdata; sdata = IEEE80211_DEV_TO_SUB_IF(dev); if (sdata->flags & IEEE80211_SDATA_USERSPACE_MLME) return -EOPNOTSUPP; if (sdata->vif.type == IEEE80211_IF_TYPE_STA || sdata->vif.type == IEEE80211_IF_TYPE_IBSS) { int ret = ieee80211_sta_set_extra_ie(dev, extra, data->length); if (ret) return ret; sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_BSSID_SEL; ieee80211_sta_req_auth(dev, &sdata->u.sta); return 0; } return -EOPNOTSUPP; } static int ieee80211_ioctl_giwname(struct net_device *dev, struct iw_request_info *info, char *name, char *extra) { strcpy(name, "IEEE 802.11"); return 0; } static int ieee80211_ioctl_giwrange(struct net_device *dev, struct iw_request_info *info, struct iw_point *data, char *extra) { struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); struct iw_range *range = (struct iw_range *) extra; enum ieee80211_band band; int c = 0; 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 = NUM_DEFAULT_KEYS; range->max_qual.qual = local->hw.max_signal; range->max_qual.level = local->hw.max_rssi; range->max_qual.noise = local->hw.max_noise; range->max_qual.updated = local->wstats_flags; range->avg_qual.qual = local->hw.max_signal/2; range->avg_qual.level = 0; range->avg_qual.noise = 0; range->avg_qual.updated = local->wstats_flags; 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 = local->hw.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, SIOCGIWTHRSPY); 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; } static int ieee80211_ioctl_siwmode(struct net_device *dev, struct iw_request_info *info, __u32 *mode, char *extra) { struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); int type; if (sdata->vif.type == IEEE80211_IF_TYPE_VLAN) return -EOPNOTSUPP; switch (*mode) { case IW_MODE_INFRA: type = IEEE80211_IF_TYPE_STA; break; case IW_MODE_ADHOC: type = IEEE80211_IF_TYPE_IBSS; break; case IW_MODE_MONITOR: type = IEEE80211_IF_TYPE_MNTR; break; default: return -EINVAL; } if (type == sdata->vif.type) return 0; if (netif_running(dev)) return -EBUSY; ieee80211_if_reinit(dev); ieee80211_if_set_type(dev, type); return 0; } static int ieee80211_ioctl_giwmode(struct net_device *dev, struct iw_request_info *info, __u32 *mode, char *extra) { struct ieee80211_sub_if_data *sdata; sdata = IEEE80211_DEV_TO_SUB_IF(dev); switch (sdata->vif.type) { case IEEE80211_IF_TYPE_AP: *mode = IW_MODE_MASTER; break; case IEEE80211_IF_TYPE_STA: *mode = IW_MODE_INFRA; break; case IEEE80211_IF_TYPE_IBSS: *mode = IW_MODE_ADHOC; break; case IEEE80211_IF_TYPE_MNTR: *mode = IW_MODE_MONITOR; break; case IEEE80211_IF_TYPE_WDS: *mode = IW_MODE_REPEAT; break; case IEEE80211_IF_TYPE_VLAN: *mode = IW_MODE_SECOND; /* FIXME */ break; default: *mode = IW_MODE_AUTO; break; } return 0; } int ieee80211_set_freq(struct ieee80211_local *local, int freqMHz) { int set = 0; int ret = -EINVAL; enum ieee80211_band band; struct ieee80211_supported_band *sband; int i; for (band = 0; band < IEEE80211_NUM_BANDS; band ++) { sband = local->hw.wiphy->bands[band]; if (!sband) continue; for (i = 0; i < sband->n_channels; i++) { struct ieee80211_channel *chan = &sband->channels[i]; if (chan->flags & IEEE80211_CHAN_DISABLED) continue; if (chan->center_freq == freqMHz) { set = 1; local->oper_channel = chan; break; } } if (set) break; } if (set) { if (local->sta_sw_scanning) ret = 0; else ret = ieee80211_hw_config(local); rate_control_clear(local); } return ret; } static int ieee80211_ioctl_siwfreq(struct net_device *dev, struct iw_request_info *info, struct iw_freq *freq, char *extra) { struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); if (sdata->vif.type == IEEE80211_IF_TYPE_STA) sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_CHANNEL_SEL; /* freq->e == 0: freq->m = channel; otherwise freq = m * 10^e */ if (freq->e == 0) { if (freq->m < 0) { if (sdata->vif.type == IEEE80211_IF_TYPE_STA) sdata->u.sta.flags |= IEEE80211_STA_AUTO_CHANNEL_SEL; return 0; } else return ieee80211_set_freq(local, 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_set_freq(local, freq->m / div); else return -EINVAL; } } static int ieee80211_ioctl_giwfreq(struct net_device *dev, struct iw_request_info *info, struct iw_freq *freq, char *extra) { struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); freq->m = local->hw.conf.channel->center_freq; freq->e = 6; return 0; } static int ieee80211_ioctl_siwessid(struct net_device *dev, struct iw_request_info *info, struct iw_point *data, char *ssid) { struct ieee80211_sub_if_data *sdata; size_t len = data->length; /* iwconfig uses nul termination in SSID.. */ if (len > 0 && ssid[len - 1] == '\0') len--; sdata = IEEE80211_DEV_TO_SUB_IF(dev); if (sdata->vif.type == IEEE80211_IF_TYPE_STA || sdata->vif.type == IEEE80211_IF_TYPE_IBSS) { int ret; if (sdata->flags & IEEE80211_SDATA_USERSPACE_MLME) { if (len > IEEE80211_MAX_SSID_LEN) return -EINVAL; memcpy(sdata->u.sta.ssid, ssid, len); sdata->u.sta.ssid_len = len; return 0; } if (data->flags) sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_SSID_SEL; else sdata->u.sta.flags |= IEEE80211_STA_AUTO_SSID_SEL; ret = ieee80211_sta_set_ssid(dev, ssid, len); if (ret) return ret; ieee80211_sta_req_auth(dev, &sdata->u.sta); return 0; } if (sdata->vif.type == IEEE80211_IF_TYPE_AP) { memcpy(sdata->u.ap.ssid, ssid, len); memset(sdata->u.ap.ssid + len, 0, IEEE80211_MAX_SSID_LEN - len); sdata->u.ap.ssid_len = len; return ieee80211_if_config(dev); } return -EOPNOTSUPP; } static int ieee80211_ioctl_giwessid(struct net_device *dev, struct iw_request_info *info, struct iw_point *data, char *ssid) { size_t len; struct ieee80211_sub_if_data *sdata; sdata = IEEE80211_DEV_TO_SUB_IF(dev); if (sdata->vif.type == IEEE80211_IF_TYPE_STA || sdata->vif.type == IEEE80211_IF_TYPE_IBSS) { int res = ieee80211_sta_get_ssid(dev, ssid, &len); if (res == 0) { data->length = len; data->flags = 1; } else data->flags = 0; return res; } if (sdata->vif.type == IEEE80211_IF_TYPE_AP) { len = sdata->u.ap.ssid_len; if (len > IW_ESSID_MAX_SIZE) len = IW_ESSID_MAX_SIZE; memcpy(ssid, sdata->u.ap.ssid, len); data->length = len; data->flags = 1; return 0; } return -EOPNOTSUPP; } static int ieee80211_ioctl_siwap(struct net_device *dev, struct iw_request_info *info, struct sockaddr *ap_addr, char *extra) { struct ieee80211_sub_if_data *sdata; sdata = IEEE80211_DEV_TO_SUB_IF(dev); if (sdata->vif.type == IEEE80211_IF_TYPE_STA || sdata->vif.type == IEEE80211_IF_TYPE_IBSS) { int ret; if (sdata->flags & IEEE80211_SDATA_USERSPACE_MLME) { memcpy(sdata->u.sta.bssid, (u8 *) &ap_addr->sa_data, ETH_ALEN); return 0; } if (is_zero_ether_addr((u8 *) &ap_addr->sa_data)) sdata->u.sta.flags |= IEEE80211_STA_AUTO_BSSID_SEL | IEEE80211_STA_AUTO_CHANNEL_SEL; else if (is_broadcast_ether_addr((u8 *) &ap_addr->sa_data)) sdata->u.sta.flags |= IEEE80211_STA_AUTO_BSSID_SEL; else sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_BSSID_SEL; ret = ieee80211_sta_set_bssid(dev, (u8 *) &ap_addr->sa_data); if (ret) return ret; ieee80211_sta_req_auth(dev, &sdata->u.sta); return 0; } else if (sdata->vif.type == IEEE80211_IF_TYPE_WDS) { /* * If it is necessary to update the WDS peer address * while the interface is running, then we need to do * more work here, namely if it is running we need to * add a new and remove the old STA entry, this is * normally handled by _open() and _stop(). */ if (netif_running(dev)) return -EBUSY; memcpy(&sdata->u.wds.remote_addr, (u8 *) &ap_addr->sa_data, ETH_ALEN); return 0; } return -EOPNOTSUPP; } static int ieee80211_ioctl_giwap(struct net_device *dev, struct iw_request_info *info, struct sockaddr *ap_addr, char *extra) { struct ieee80211_sub_if_data *sdata; sdata = IEEE80211_DEV_TO_SUB_IF(dev); if (sdata->vif.type == IEEE80211_IF_TYPE_STA || sdata->vif.type == IEEE80211_IF_TYPE_IBSS) { ap_addr->sa_family = ARPHRD_ETHER; memcpy(&ap_addr->sa_data, sdata->u.sta.bssid, ETH_ALEN); return 0; } else if (sdata->vif.type == IEEE80211_IF_TYPE_WDS) { ap_addr->sa_family = ARPHRD_ETHER; memcpy(&ap_addr->sa_data, sdata->u.wds.remote_addr, ETH_ALEN); return 0; } return -EOPNOTSUPP; } static int ieee80211_ioctl_siwscan(struct net_device *dev, struct iw_request_info *info, union iwreq_data *wrqu, char *extra) { struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); struct iw_scan_req *req = NULL; u8 *ssid = NULL; size_t ssid_len = 0; if (!netif_running(dev)) return -ENETDOWN; if (sdata->vif.type != IEEE80211_IF_TYPE_STA && sdata->vif.type != IEEE80211_IF_TYPE_IBSS && sdata->vif.type != IEEE80211_IF_TYPE_MESH_POINT && sdata->vif.type != IEEE80211_IF_TYPE_AP) return -EOPNOTSUPP; /* if SSID was specified explicitly then use that */ if (wrqu->data.length == sizeof(struct iw_scan_req) && wrqu->data.flags & IW_SCAN_THIS_ESSID) { req = (struct iw_scan_req *)extra; ssid = req->essid; ssid_len = req->essid_len; } return ieee80211_sta_req_scan(dev, ssid, ssid_len); } static int ieee80211_ioctl_giwscan(struct net_device *dev, struct iw_request_info *info, struct iw_point *data, char *extra) { int res; struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); if (local->sta_sw_scanning || local->sta_hw_scanning) return -EAGAIN; res = ieee80211_sta_scan_results(dev, extra, data->length); if (res >= 0) { data->length = res; return 0; } data->length = 0; return res; } static int ieee80211_ioctl_siwrate(struct net_device *dev, struct iw_request_info *info, struct iw_param *rate, char *extra) { struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); int i, err = -EINVAL; u32 target_rate = rate->value / 100000; struct ieee80211_sub_if_data *sdata; struct ieee80211_supported_band *sband; sdata = IEEE80211_DEV_TO_SUB_IF(dev); if (!sdata->bss) return -ENODEV; sband = local->hw.wiphy->bands[local->hw.conf.channel->band]; /* target_rate = -1, rate->fixed = 0 means auto only, so use all rates * target_rate = X, rate->fixed = 1 means only rate X * target_rate = X, rate->fixed = 0 means all rates <= X */ sdata->bss->max_ratectrl_rateidx = -1; sdata->bss->force_unicast_rateidx = -1; if (rate->value < 0) return 0; for (i=0; i< sband->n_bitrates; i++) { struct ieee80211_rate *brate = &sband->bitrates[i]; int this_rate = brate->bitrate; if (target_rate == this_rate) { sdata->bss->max_ratectrl_rateidx = i; if (rate->fixed) sdata->bss->force_unicast_rateidx = i; err = 0; break; } } return err; } static int ieee80211_ioctl_giwrate(struct net_device *dev, struct iw_request_info *info, struct iw_param *rate, char *extra) { struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); struct sta_info *sta; struct ieee80211_sub_if_data *sdata; struct ieee80211_supported_band *sband; sdata = IEEE80211_DEV_TO_SUB_IF(dev); if (sdata->vif.type == IEEE80211_IF_TYPE_STA) sta = sta_info_get(local, sdata->u.sta.bssid); else return -EOPNOTSUPP; if (!sta) return -ENODEV; sband = local->hw.wiphy->bands[local->hw.conf.channel->band]; if (sta->txrate_idx < sband->n_bitrates) rate->value = sband->bitrates[sta->txrate_idx].bitrate; else rate->value = 0; rate->value *= 100000; return 0; } static int ieee80211_ioctl_siwtxpower(struct net_device *dev, struct iw_request_info *info, union iwreq_data *data, char *extra) { struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); bool need_reconfig = 0; int new_power_level; if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM) return -EINVAL; if (data->txpower.flags & IW_TXPOW_RANGE) return -EINVAL; if (data->txpower.fixed) { new_power_level = data->txpower.value; } else { /* * Automatic power level. Use maximum power for the current * channel. Should be part of rate control. */ struct ieee80211_channel* chan = local->hw.conf.channel; if (!chan) return -EINVAL; new_power_level = chan->max_power; } if (local->hw.conf.power_level != new_power_level) { local->hw.conf.power_level = new_power_level; need_reconfig = 1; } if (local->hw.conf.radio_enabled != !(data->txpower.disabled)) { local->hw.conf.radio_enabled = !(data->txpower.disabled); need_reconfig = 1; ieee80211_led_radio(local, local->hw.conf.radio_enabled); } if (need_reconfig) { ieee80211_hw_config(local); /* The return value of hw_config is not of big interest here, * as it doesn't say that it failed because of _this_ config * change or something else. Ignore it. */ } return 0; } static int ieee80211_ioctl_giwtxpower(struct net_device *dev, struct iw_request_info *info, union iwreq_data *data, char *extra) { struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); data->txpower.fixed = 1; data->txpower.disabled = !(local->hw.conf.radio_enabled); data->txpower.value = local->hw.conf.power_level; data->txpower.flags = IW_TXPOW_DBM; return 0; } static int ieee80211_ioctl_siwrts(struct net_device *dev, struct iw_request_info *info, struct iw_param *rts, char *extra) { struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); if (rts->disabled) local->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; else if (rts->value < 0 || rts->value > IEEE80211_MAX_RTS_THRESHOLD) return -EINVAL; else local->rts_threshold = rts->value; /* If the wlan card performs RTS/CTS in hardware/firmware, * configure it here */ if (local->ops->set_rts_threshold) local->ops->set_rts_threshold(local_to_hw(local), local->rts_threshold); return 0; } static int ieee80211_ioctl_giwrts(struct net_device *dev, struct iw_request_info *info, struct iw_param *rts, char *extra) { struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); rts->value = local->rts_threshold; rts->disabled = (rts->value >= IEEE80211_MAX_RTS_THRESHOLD); rts->fixed = 1; return 0; } static int ieee80211_ioctl_siwfrag(struct net_device *dev, struct iw_request_info *info, struct iw_param *frag, char *extra) { struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); if (frag->disabled) local->fragmentation_threshold = IEEE80211_MAX_FRAG_THRESHOLD; else if (frag->value < 256 || frag->value > IEEE80211_MAX_FRAG_THRESHOLD) return -EINVAL; else { /* Fragment length must be even, so strip LSB. */ local->fragmentation_threshold = frag->value & ~0x1; } /* If the wlan card performs fragmentation in hardware/firmware, * configure it here */ if (local->ops->set_frag_threshold) local->ops->set_frag_threshold( local_to_hw(local), local->fragmentation_threshold); return 0; } static int ieee80211_ioctl_giwfrag(struct net_device *dev, struct iw_request_info *info, struct iw_param *frag, char *extra) { struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); frag->value = local->fragmentation_threshold; frag->disabled = (frag->value >= IEEE80211_MAX_RTS_THRESHOLD); frag->fixed = 1; return 0; } static int ieee80211_ioctl_siwretry(struct net_device *dev, struct iw_request_info *info, struct iw_param *retry, char *extra) { struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); if (retry->disabled || (retry->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT) return -EINVAL; if (retry->flags & IW_RETRY_MAX) local->long_retry_limit = retry->value; else if (retry->flags & IW_RETRY_MIN) local->short_retry_limit = retry->value; else { local->long_retry_limit = retry->value; local->short_retry_limit = retry->value; } if (local->ops->set_retry_limit) { return local->ops->set_retry_limit( local_to_hw(local), local->short_retry_limit, local->long_retry_limit); } return 0; } static int ieee80211_ioctl_giwretry(struct net_device *dev, struct iw_request_info *info, struct iw_param *retry, char *extra) { struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); retry->disabled = 0; if (retry->flags == 0 || retry->flags & IW_RETRY_MIN) { /* first return min value, iwconfig will ask max value * later if needed */ retry->flags |= IW_RETRY_LIMIT; retry->value = local->short_retry_limit; if (local->long_retry_limit != local->short_retry_limit) retry->flags |= IW_RETRY_MIN; return 0; } if (retry->flags & IW_RETRY_MAX) { retry->flags = IW_RETRY_LIMIT | IW_RETRY_MAX; retry->value = local->long_retry_limit; } return 0; } static int ieee80211_ioctl_siwmlme(struct net_device *dev, struct iw_request_info *info, struct iw_point *data, char *extra) { struct ieee80211_sub_if_data *sdata; struct iw_mlme *mlme = (struct iw_mlme *) extra; sdata = IEEE80211_DEV_TO_SUB_IF(dev); if (sdata->vif.type != IEEE80211_IF_TYPE_STA && sdata->vif.type != IEEE80211_IF_TYPE_IBSS) return -EINVAL; switch (mlme->cmd) { case IW_MLME_DEAUTH: /* TODO: mlme->addr.sa_data */ return ieee80211_sta_deauthenticate(dev, mlme->reason_code); case IW_MLME_DISASSOC: /* TODO: mlme->addr.sa_data */ return ieee80211_sta_disassociate(dev, mlme->reason_code); default: return -EOPNOTSUPP; } } static int ieee80211_ioctl_siwencode(struct net_device *dev, struct iw_request_info *info, struct iw_point *erq, char *keybuf) { struct ieee80211_sub_if_data *sdata; int idx, i, alg = ALG_WEP; u8 bcaddr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; int remove = 0; sdata = IEEE80211_DEV_TO_SUB_IF(dev); idx = erq->flags & IW_ENCODE_INDEX; if (idx == 0) { if (sdata->default_key) for (i = 0; i < NUM_DEFAULT_KEYS; i++) { if (sdata->default_key == sdata->keys[i]) { idx = i; break; } } } else if (idx < 1 || idx > 4) return -EINVAL; else idx--; if (erq->flags & IW_ENCODE_DISABLED) remove = 1; else if (erq->length == 0) { /* No key data - just set the default TX key index */ ieee80211_set_default_key(sdata, idx); return 0; } return ieee80211_set_encryption( dev, bcaddr, idx, alg, remove, !sdata->default_key, keybuf, erq->length); } static int ieee80211_ioctl_giwencode(struct net_device *dev, struct iw_request_info *info, struct iw_point *erq, char *key) { struct ieee80211_sub_if_data *sdata; int idx, i; sdata = IEEE80211_DEV_TO_SUB_IF(dev); idx = erq->flags & IW_ENCODE_INDEX; if (idx < 1 || idx > 4) { idx = -1; if (!sdata->default_key) idx = 0; else for (i = 0; i < NUM_DEFAULT_KEYS; i++) { if (sdata->default_key == sdata->keys[i]) { idx = i; break; } } if (idx < 0) return -EINVAL; } else idx--; erq->flags = idx + 1; if (!sdata->keys[idx]) { erq->length = 0; erq->flags |= IW_ENCODE_DISABLED; return 0; } memcpy(key, sdata->keys[idx]->conf.key, min_t(int, erq->length, sdata->keys[idx]->conf.keylen)); erq->length = sdata->keys[idx]->conf.keylen; erq->flags |= IW_ENCODE_ENABLED; return 0; } static int ieee80211_ioctl_siwauth(struct net_device *dev, struct iw_request_info *info, struct iw_param *data, char *extra) { struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); int ret = 0; switch (data->flags & IW_AUTH_INDEX) { case IW_AUTH_WPA_VERSION: case IW_AUTH_CIPHER_PAIRWISE: case IW_AUTH_CIPHER_GROUP: case IW_AUTH_WPA_ENABLED: case IW_AUTH_RX_UNENCRYPTED_EAPOL: case IW_AUTH_KEY_MGMT: break; case IW_AUTH_DROP_UNENCRYPTED: sdata->drop_unencrypted = !!data->value; break; case IW_AUTH_PRIVACY_INVOKED: if (sdata->vif.type != IEEE80211_IF_TYPE_STA) ret = -EINVAL; else { sdata->u.sta.flags &= ~IEEE80211_STA_PRIVACY_INVOKED; /* * Privacy invoked by wpa_supplicant, store the * value and allow associating to a protected * network without having a key up front. */ if (data->value) sdata->u.sta.flags |= IEEE80211_STA_PRIVACY_INVOKED; } break; case IW_AUTH_80211_AUTH_ALG: if (sdata->vif.type == IEEE80211_IF_TYPE_STA || sdata->vif.type == IEEE80211_IF_TYPE_IBSS) sdata->u.sta.auth_algs = data->value; else ret = -EOPNOTSUPP; break; default: ret = -EOPNOTSUPP; break; } return ret; } /* Get wireless statistics. Called by /proc/net/wireless and by SIOCGIWSTATS */ static struct iw_statistics *ieee80211_get_wireless_stats(struct net_device *dev) { struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); struct iw_statistics *wstats = &local->wstats; struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); struct sta_info *sta = NULL; if (sdata->vif.type == IEEE80211_IF_TYPE_STA || sdata->vif.type == IEEE80211_IF_TYPE_IBSS) sta = sta_info_get(local, sdata->u.sta.bssid); if (!sta) { wstats->discard.fragment = 0; wstats->discard.misc = 0; wstats->qual.qual = 0; wstats->qual.level = 0; wstats->qual.noise = 0; wstats->qual.updated = IW_QUAL_ALL_INVALID; } else { wstats->qual.level = sta->last_rssi; wstats->qual.qual = sta->last_signal; wstats->qual.noise = sta->last_noise; wstats->qual.updated = local->wstats_flags; } return wstats; } static int ieee80211_ioctl_giwauth(struct net_device *dev, struct iw_request_info *info, struct iw_param *data, char *extra) { struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); int ret = 0; switch (data->flags & IW_AUTH_INDEX) { case IW_AUTH_80211_AUTH_ALG: if (sdata->vif.type == IEEE80211_IF_TYPE_STA || sdata->vif.type == IEEE80211_IF_TYPE_IBSS) data->value = sdata->u.sta.auth_algs; else ret = -EOPNOTSUPP; break; default: ret = -EOPNOTSUPP; break; } return ret; } static int ieee80211_ioctl_siwencodeext(struct net_device *dev, struct iw_request_info *info, struct iw_point *erq, char *extra) { struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); struct iw_encode_ext *ext = (struct iw_encode_ext *) extra; int uninitialized_var(alg), idx, i, remove = 0; switch (ext->alg) { case IW_ENCODE_ALG_NONE: remove = 1; break; case IW_ENCODE_ALG_WEP: alg = ALG_WEP; break; case IW_ENCODE_ALG_TKIP: alg = ALG_TKIP; break; case IW_ENCODE_ALG_CCMP: alg = ALG_CCMP; break; default: return -EOPNOTSUPP; } if (erq->flags & IW_ENCODE_DISABLED) remove = 1; idx = erq->flags & IW_ENCODE_INDEX; if (idx < 1 || idx > 4) { idx = -1; if (!sdata->default_key) idx = 0; else for (i = 0; i < NUM_DEFAULT_KEYS; i++) { if (sdata->default_key == sdata->keys[i]) { idx = i; break; } } if (idx < 0) return -EINVAL; } else idx--; return ieee80211_set_encryption(dev, ext->addr.sa_data, idx, alg, remove, ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY, ext->key, ext->key_len); } /* Structures to export the Wireless Handlers */ static const iw_handler ieee80211_handler[] = { (iw_handler) NULL, /* SIOCSIWCOMMIT */ (iw_handler) ieee80211_ioctl_giwname, /* SIOCGIWNAME */ (iw_handler) NULL, /* SIOCSIWNWID */ (iw_handler) NULL, /* SIOCGIWNWID */ (iw_handler) ieee80211_ioctl_siwfreq, /* SIOCSIWFREQ */ (iw_handler) ieee80211_ioctl_giwfreq, /* SIOCGIWFREQ */ (iw_handler) ieee80211_ioctl_siwmode, /* SIOCSIWMODE */ (iw_handler) ieee80211_ioctl_giwmode, /* SIOCGIWMODE */ (iw_handler) NULL, /* SIOCSIWSENS */ (iw_handler) NULL, /* SIOCGIWSENS */ (iw_handler) NULL /* not used */, /* SIOCSIWRANGE */ (iw_handler) ieee80211_ioctl_giwrange, /* SIOCGIWRANGE */ (iw_handler) NULL /* not used */, /* SIOCSIWPRIV */ (iw_handler) NULL /* kernel code */, /* SIOCGIWPRIV */ (iw_handler) NULL /* not used */, /* SIOCSIWSTATS */ (iw_handler) NULL /* kernel code */, /* SIOCGIWSTATS */ (iw_handler) NULL, /* SIOCSIWSPY */ (iw_handler) NULL, /* SIOCGIWSPY */ (iw_handler) NULL, /* SIOCSIWTHRSPY */ (iw_handler) NULL, /* SIOCGIWTHRSPY */ (iw_handler) ieee80211_ioctl_siwap, /* SIOCSIWAP */ (iw_handler) ieee80211_ioctl_giwap, /* SIOCGIWAP */ (iw_handler) ieee80211_ioctl_siwmlme, /* SIOCSIWMLME */ (iw_handler) NULL, /* SIOCGIWAPLIST */ (iw_handler) ieee80211_ioctl_siwscan, /* SIOCSIWSCAN */ (iw_handler) ieee80211_ioctl_giwscan, /* SIOCGIWSCAN */ (iw_handler) ieee80211_ioctl_siwessid, /* SIOCSIWESSID */ (iw_handler) ieee80211_ioctl_giwessid, /* SIOCGIWESSID */ (iw_handler) NULL, /* SIOCSIWNICKN */ (iw_handler) NULL, /* SIOCGIWNICKN */ (iw_handler) NULL, /* -- hole -- */ (iw_handler) NULL, /* -- hole -- */ (iw_handler) ieee80211_ioctl_siwrate, /* SIOCSIWRATE */ (iw_handler) ieee80211_ioctl_giwrate, /* SIOCGIWRATE */ (iw_handler) ieee80211_ioctl_siwrts, /* SIOCSIWRTS */ (iw_handler) ieee80211_ioctl_giwrts, /* SIOCGIWRTS */ (iw_handler) ieee80211_ioctl_siwfrag, /* SIOCSIWFRAG */ (iw_handler) ieee80211_ioctl_giwfrag, /* SIOCGIWFRAG */ (iw_handler) ieee80211_ioctl_siwtxpower, /* SIOCSIWTXPOW */ (iw_handler) ieee80211_ioctl_giwtxpower, /* SIOCGIWTXPOW */ (iw_handler) ieee80211_ioctl_siwretry, /* SIOCSIWRETRY */ (iw_handler) ieee80211_ioctl_giwretry, /* SIOCGIWRETRY */ (iw_handler) ieee80211_ioctl_siwencode, /* SIOCSIWENCODE */ (iw_handler) ieee80211_ioctl_giwencode, /* SIOCGIWENCODE */ (iw_handler) NULL, /* SIOCSIWPOWER */ (iw_handler) NULL, /* SIOCGIWPOWER */ (iw_handler) NULL, /* -- hole -- */ (iw_handler) NULL, /* -- hole -- */ (iw_handler) ieee80211_ioctl_siwgenie, /* SIOCSIWGENIE */ (iw_handler) NULL, /* SIOCGIWGENIE */ (iw_handler) ieee80211_ioctl_siwauth, /* SIOCSIWAUTH */ (iw_handler) ieee80211_ioctl_giwauth, /* SIOCGIWAUTH */ (iw_handler) ieee80211_ioctl_siwencodeext, /* SIOCSIWENCODEEXT */ (iw_handler) NULL, /* SIOCGIWENCODEEXT */ (iw_handler) NULL, /* SIOCSIWPMKSA */ (iw_handler) NULL, /* -- hole -- */ }; const struct iw_handler_def ieee80211_iw_handler_def = { .num_standard = ARRAY_SIZE(ieee80211_handler), .standard = (iw_handler *) ieee80211_handler, .get_wireless_stats = ieee80211_get_wireless_stats, };