/* * 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 #include #include #include #include #include #include #include #include #include #include #include #include "ieee80211_i.h" #include "hostapd_ioctl.h" #include "ieee80211_rate.h" #include "wpa.h" #include "aes_ccm.h" #include "debugfs_key.h" static void ieee80211_set_hw_encryption(struct net_device *dev, struct sta_info *sta, u8 addr[ETH_ALEN], struct ieee80211_key *key) { struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); /* default to sw encryption; this will be cleared by low-level * driver if the hw supports requested encryption */ if (key) key->conf.flags |= IEEE80211_KEY_FORCE_SW_ENCRYPT; if (key && local->ops->set_key) { if (local->ops->set_key(local_to_hw(local), SET_KEY, addr, &key->conf)) { key->conf.flags |= IEEE80211_KEY_FORCE_SW_ENCRYPT; key->conf.hw_key_idx = HW_KEY_IDX_INVALID; } } } static int ieee80211_set_encryption(struct net_device *dev, u8 *sta_addr, int idx, int alg, int set_tx_key, const u8 *_key, size_t key_len) { struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); int ret = 0; struct sta_info *sta; struct ieee80211_key *key, *old_key; int try_hwaccel = 1; struct ieee80211_sub_if_data *sdata; sdata = IEEE80211_DEV_TO_SUB_IF(dev); if (is_broadcast_ether_addr(sta_addr)) { sta = NULL; if (idx >= NUM_DEFAULT_KEYS) { printk(KERN_DEBUG "%s: set_encrypt - invalid idx=%d\n", dev->name, idx); return -EINVAL; } key = sdata->keys[idx]; /* TODO: consider adding hwaccel support for these; at least * Atheros key cache should be able to handle this since AP is * only transmitting frames with default keys. */ /* FIX: hw key cache can be used when only one virtual * STA is associated with each AP. If more than one STA * is associated to the same AP, software encryption * must be used. This should be done automatically * based on configured station devices. For the time * being, this can be only set at compile time. */ } else { set_tx_key = 0; if (idx != 0) { printk(KERN_DEBUG "%s: set_encrypt - non-zero idx for " "individual key\n", dev->name); return -EINVAL; } sta = sta_info_get(local, sta_addr); if (!sta) { #ifdef CONFIG_MAC80211_VERBOSE_DEBUG printk(KERN_DEBUG "%s: set_encrypt - unknown addr " MAC_FMT "\n", dev->name, MAC_ARG(sta_addr)); #endif /* CONFIG_MAC80211_VERBOSE_DEBUG */ return -ENOENT; } key = sta->key; } /* FIX: * Cannot configure default hwaccel keys with WEP algorithm, if * any of the virtual interfaces is using static WEP * configuration because hwaccel would otherwise try to decrypt * these frames. * * For now, just disable WEP hwaccel for broadcast when there is * possibility of conflict with default keys. This can maybe later be * optimized by using non-default keys (at least with Atheros ar521x). */ if (!sta && alg == ALG_WEP && sdata->type != IEEE80211_IF_TYPE_IBSS && sdata->type != IEEE80211_IF_TYPE_AP) { try_hwaccel = 0; } if (local->hw.flags & IEEE80211_HW_DEVICE_HIDES_WEP) { /* Software encryption cannot be used with devices that hide * encryption from the host system, so always try to use * hardware acceleration with such devices. */ try_hwaccel = 1; } if ((local->hw.flags & IEEE80211_HW_NO_TKIP_WMM_HWACCEL) && alg == ALG_TKIP) { if (sta && (sta->flags & WLAN_STA_WME)) { /* Hardware does not support hwaccel with TKIP when using WMM. */ try_hwaccel = 0; } else if (sdata->type == IEEE80211_IF_TYPE_STA) { sta = sta_info_get(local, sdata->u.sta.bssid); if (sta) { if (sta->flags & WLAN_STA_WME) { try_hwaccel = 0; } sta_info_put(sta); sta = NULL; } } } if (alg == ALG_NONE) { if (try_hwaccel && key && key->conf.hw_key_idx != HW_KEY_IDX_INVALID && local->ops->set_key && local->ops->set_key(local_to_hw(local), DISABLE_KEY, sta_addr, &key->conf)) { printk(KERN_DEBUG "%s: set_encrypt - low-level disable" " failed\n", dev->name); ret = -EINVAL; } if (set_tx_key || sdata->default_key == key) { ieee80211_debugfs_key_remove_default(sdata); sdata->default_key = NULL; } ieee80211_debugfs_key_remove(key); if (sta) sta->key = NULL; else sdata->keys[idx] = NULL; ieee80211_key_free(key); key = NULL; } else { old_key = key; key = ieee80211_key_alloc(sta ? NULL : sdata, idx, key_len, GFP_KERNEL); if (!key) { ret = -ENOMEM; goto err_out; } /* default to sw encryption; low-level driver sets these if the * requested encryption is supported */ key->conf.hw_key_idx = HW_KEY_IDX_INVALID; key->conf.flags |= IEEE80211_KEY_FORCE_SW_ENCRYPT; key->conf.alg = alg; key->conf.keyidx = idx; key->conf.keylen = key_len; memcpy(key->conf.key, _key, key_len); if (alg == ALG_CCMP) { /* Initialize AES key state here as an optimization * so that it does not need to be initialized for every * packet. */ key->u.ccmp.tfm = ieee80211_aes_key_setup_encrypt( key->conf.key); if (!key->u.ccmp.tfm) { ret = -ENOMEM; goto err_free; } } if (set_tx_key || sdata->default_key == old_key) { ieee80211_debugfs_key_remove_default(sdata); sdata->default_key = NULL; } ieee80211_debugfs_key_remove(old_key); if (sta) sta->key = key; else sdata->keys[idx] = key; ieee80211_key_free(old_key); ieee80211_debugfs_key_add(local, key); if (sta) ieee80211_debugfs_key_sta_link(key, sta); if (try_hwaccel && (alg == ALG_WEP || alg == ALG_TKIP || alg == ALG_CCMP)) ieee80211_set_hw_encryption(dev, sta, sta_addr, key); } if (set_tx_key || (!sta && !sdata->default_key && key)) { sdata->default_key = key; if (key) ieee80211_debugfs_key_add_default(sdata); if (local->ops->set_key_idx && local->ops->set_key_idx(local_to_hw(local), idx)) printk(KERN_DEBUG "%s: failed to set TX key idx for " "low-level driver\n", dev->name); } if (sta) sta_info_put(sta); return 0; err_free: ieee80211_key_free(key); err_out: if (sta) sta_info_put(sta); return ret; } 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; struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); if (local->user_space_mlme) return -EOPNOTSUPP; sdata = IEEE80211_DEV_TO_SUB_IF(dev); if (sdata->type == IEEE80211_IF_TYPE_STA || sdata->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; } if (sdata->type == IEEE80211_IF_TYPE_AP) { kfree(sdata->u.ap.generic_elem); sdata->u.ap.generic_elem = kmalloc(data->length, GFP_KERNEL); if (!sdata->u.ap.generic_elem) return -ENOMEM; memcpy(sdata->u.ap.generic_elem, extra, data->length); sdata->u.ap.generic_elem_len = data->length; return ieee80211_if_config(dev); } return -EOPNOTSUPP; } static int ieee80211_ioctl_giwname(struct net_device *dev, struct iw_request_info *info, char *name, char *extra) { struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); switch (local->hw.conf.phymode) { case MODE_IEEE80211A: strcpy(name, "IEEE 802.11a"); break; case MODE_IEEE80211B: strcpy(name, "IEEE 802.11b"); break; case MODE_IEEE80211G: strcpy(name, "IEEE 802.11g"); break; case MODE_ATHEROS_TURBO: strcpy(name, "5GHz Turbo"); break; default: strcpy(name, "IEEE 802.11"); break; } 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; struct ieee80211_hw_mode *mode = NULL; 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; list_for_each_entry(mode, &local->modes_list, list) { int i = 0; if (!(local->enabled_modes & (1 << mode->mode)) || (local->hw_modes & local->enabled_modes & (1 << MODE_IEEE80211G) && mode->mode == MODE_IEEE80211B)) continue; while (i < mode->num_channels && c < IW_MAX_FREQUENCIES) { struct ieee80211_channel *chan = &mode->channels[i]; if (chan->flag & IEEE80211_CHAN_W_SCAN) { range->freq[c].i = chan->chan; range->freq[c].m = chan->freq * 100000; range->freq[c].e = 1; c++; } i++; } } 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); 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->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->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->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_channel(struct ieee80211_local *local, int channel, int freq) { struct ieee80211_hw_mode *mode; int c, set = 0; int ret = -EINVAL; list_for_each_entry(mode, &local->modes_list, list) { if (!(local->enabled_modes & (1 << mode->mode))) continue; for (c = 0; c < mode->num_channels; c++) { struct ieee80211_channel *chan = &mode->channels[c]; if (chan->flag & IEEE80211_CHAN_W_SCAN && ((chan->chan == channel) || (chan->freq == freq))) { /* Use next_mode as the mode preference to * resolve non-unique channel numbers. */ if (set && mode->mode != local->next_mode) continue; local->oper_channel = chan; local->oper_hw_mode = mode; set++; } } } if (set) { if (local->sta_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->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->type == IEEE80211_IF_TYPE_STA) sdata->u.sta.flags |= IEEE80211_STA_AUTO_CHANNEL_SEL; return 0; } else return ieee80211_set_channel(local, freq->m, -1); } else { int i, div = 1000000; for (i = 0; i < freq->e; i++) div /= 10; if (div > 0) return ieee80211_set_channel(local, -1, 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); /* TODO: in station mode (Managed/Ad-hoc) might need to poll low-level * driver for the current channel with firmware-based management */ freq->m = local->hw.conf.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_local *local = wdev_priv(dev->ieee80211_ptr); 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->type == IEEE80211_IF_TYPE_STA || sdata->type == IEEE80211_IF_TYPE_IBSS) { int ret; if (local->user_space_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->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->type == IEEE80211_IF_TYPE_STA || sdata->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->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_local *local = wdev_priv(dev->ieee80211_ptr); struct ieee80211_sub_if_data *sdata; sdata = IEEE80211_DEV_TO_SUB_IF(dev); if (sdata->type == IEEE80211_IF_TYPE_STA || sdata->type == IEEE80211_IF_TYPE_IBSS) { int ret; if (local->user_space_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->type == IEEE80211_IF_TYPE_WDS) { if (memcmp(sdata->u.wds.remote_addr, (u8 *) &ap_addr->sa_data, ETH_ALEN) == 0) return 0; return ieee80211_if_update_wds(dev, (u8 *) &ap_addr->sa_data); } 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->type == IEEE80211_IF_TYPE_STA || sdata->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->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, struct iw_point *data, char *extra) { struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); u8 *ssid = NULL; size_t ssid_len = 0; if (!netif_running(dev)) return -ENETDOWN; switch (sdata->type) { case IEEE80211_IF_TYPE_STA: case IEEE80211_IF_TYPE_IBSS: if (local->scan_flags & IEEE80211_SCAN_MATCH_SSID) { ssid = sdata->u.sta.ssid; ssid_len = sdata->u.sta.ssid_len; } break; case IEEE80211_IF_TYPE_AP: if (local->scan_flags & IEEE80211_SCAN_MATCH_SSID) { ssid = sdata->u.ap.ssid; ssid_len = sdata->u.ap.ssid_len; } break; default: return -EOPNOTSUPP; } 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_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); struct ieee80211_hw_mode *mode; int i; u32 target_rate = rate->value / 100000; struct ieee80211_sub_if_data *sdata; sdata = IEEE80211_DEV_TO_SUB_IF(dev); if (!sdata->bss) return -ENODEV; mode = local->oper_hw_mode; /* 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< mode->num_rates; i++) { struct ieee80211_rate *rates = &mode->rates[i]; int this_rate = rates->rate; if (mode->mode == MODE_ATHEROS_TURBO || mode->mode == MODE_ATHEROS_TURBOG) this_rate *= 2; if (target_rate == this_rate) { sdata->bss->max_ratectrl_rateidx = i; if (rate->fixed) sdata->bss->force_unicast_rateidx = i; break; } } return 0; } 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; sdata = IEEE80211_DEV_TO_SUB_IF(dev); if (sdata->type == IEEE80211_IF_TYPE_STA) sta = sta_info_get(local, sdata->u.sta.bssid); else return -EOPNOTSUPP; if (!sta) return -ENODEV; if (sta->txrate < local->oper_hw_mode->num_rates) rate->value = local->oper_hw_mode->rates[sta->txrate].rate * 100000; else rate->value = 0; sta_info_put(sta); 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_prism2_param(struct net_device *dev, struct iw_request_info *info, void *wrqu, char *extra) { struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); struct ieee80211_sub_if_data *sdata; int *i = (int *) extra; int param = *i; int value = *(i + 1); int ret = 0; if (!capable(CAP_NET_ADMIN)) return -EPERM; sdata = IEEE80211_DEV_TO_SUB_IF(dev); switch (param) { case PRISM2_PARAM_IEEE_802_1X: if (local->ops->set_ieee8021x) ret = local->ops->set_ieee8021x(local_to_hw(local), value); if (ret) printk(KERN_DEBUG "%s: failed to set IEEE 802.1X (%d) " "for low-level driver\n", dev->name, value); else sdata->ieee802_1x = value; break; case PRISM2_PARAM_CTS_PROTECT_ERP_FRAMES: if (sdata->type == IEEE80211_IF_TYPE_AP) { if (value) sdata->flags |= IEEE80211_SDATA_USE_PROTECTION; else sdata->flags &= ~IEEE80211_SDATA_USE_PROTECTION; ieee80211_erp_info_change_notify(dev, IEEE80211_ERP_CHANGE_PROTECTION); } else { ret = -ENOENT; } break; case PRISM2_PARAM_PREAMBLE: if (sdata->type != IEEE80211_IF_TYPE_AP) { if (value) sdata->flags |= IEEE80211_SDATA_SHORT_PREAMBLE; else sdata->flags &= ~IEEE80211_SDATA_SHORT_PREAMBLE; ieee80211_erp_info_change_notify(dev, IEEE80211_ERP_CHANGE_PREAMBLE); } else { ret = -ENOENT; } break; case PRISM2_PARAM_SHORT_SLOT_TIME: if (value) local->hw.conf.flags |= IEEE80211_CONF_SHORT_SLOT_TIME; else local->hw.conf.flags &= ~IEEE80211_CONF_SHORT_SLOT_TIME; if (ieee80211_hw_config(local)) ret = -EINVAL; break; case PRISM2_PARAM_NEXT_MODE: local->next_mode = value; break; case PRISM2_PARAM_KEY_TX_RX_THRESHOLD: local->key_tx_rx_threshold = value; break; case PRISM2_PARAM_WIFI_WME_NOACK_TEST: local->wifi_wme_noack_test = value; break; case PRISM2_PARAM_SCAN_FLAGS: local->scan_flags = value; break; case PRISM2_PARAM_MIXED_CELL: if (sdata->type != IEEE80211_IF_TYPE_STA && sdata->type != IEEE80211_IF_TYPE_IBSS) ret = -EINVAL; else { if (value) sdata->u.sta.flags |= IEEE80211_STA_MIXED_CELL; else sdata->u.sta.flags &= ~IEEE80211_STA_MIXED_CELL; } break; case PRISM2_PARAM_HW_MODES: local->enabled_modes = value; break; case PRISM2_PARAM_CREATE_IBSS: if (sdata->type != IEEE80211_IF_TYPE_IBSS) ret = -EINVAL; else { if (value) sdata->u.sta.flags |= IEEE80211_STA_CREATE_IBSS; else sdata->u.sta.flags &= ~IEEE80211_STA_CREATE_IBSS; } break; case PRISM2_PARAM_WMM_ENABLED: if (sdata->type != IEEE80211_IF_TYPE_STA && sdata->type != IEEE80211_IF_TYPE_IBSS) ret = -EINVAL; else { if (value) sdata->u.sta.flags |= IEEE80211_STA_WMM_ENABLED; else sdata->u.sta.flags &= ~IEEE80211_STA_WMM_ENABLED; } break; default: ret = -EOPNOTSUPP; break; } return ret; } static int ieee80211_ioctl_get_prism2_param(struct net_device *dev, struct iw_request_info *info, void *wrqu, char *extra) { struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); struct ieee80211_sub_if_data *sdata; int *param = (int *) extra; int ret = 0; sdata = IEEE80211_DEV_TO_SUB_IF(dev); switch (*param) { case PRISM2_PARAM_IEEE_802_1X: *param = sdata->ieee802_1x; break; case PRISM2_PARAM_CTS_PROTECT_ERP_FRAMES: *param = !!(sdata->flags & IEEE80211_SDATA_USE_PROTECTION); break; case PRISM2_PARAM_PREAMBLE: *param = !!(sdata->flags & IEEE80211_SDATA_SHORT_PREAMBLE); break; case PRISM2_PARAM_SHORT_SLOT_TIME: *param = !!(local->hw.conf.flags & IEEE80211_CONF_SHORT_SLOT_TIME); break; case PRISM2_PARAM_NEXT_MODE: *param = local->next_mode; break; case PRISM2_PARAM_KEY_TX_RX_THRESHOLD: *param = local->key_tx_rx_threshold; break; case PRISM2_PARAM_WIFI_WME_NOACK_TEST: *param = local->wifi_wme_noack_test; break; case PRISM2_PARAM_SCAN_FLAGS: *param = local->scan_flags; break; case PRISM2_PARAM_HW_MODES: *param = local->enabled_modes; break; case PRISM2_PARAM_CREATE_IBSS: if (sdata->type != IEEE80211_IF_TYPE_IBSS) ret = -EINVAL; else *param = !!(sdata->u.sta.flags & IEEE80211_STA_CREATE_IBSS); break; case PRISM2_PARAM_MIXED_CELL: if (sdata->type != IEEE80211_IF_TYPE_STA && sdata->type != IEEE80211_IF_TYPE_IBSS) ret = -EINVAL; else *param = !!(sdata->u.sta.flags & IEEE80211_STA_MIXED_CELL); break; case PRISM2_PARAM_WMM_ENABLED: if (sdata->type != IEEE80211_IF_TYPE_STA && sdata->type != IEEE80211_IF_TYPE_IBSS) ret = -EINVAL; else *param = !!(sdata->u.sta.flags & IEEE80211_STA_WMM_ENABLED); break; default: ret = -EOPNOTSUPP; break; } return ret; } 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->type != IEEE80211_IF_TYPE_STA && sdata->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 }; 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) alg = ALG_NONE; else if (erq->length == 0) { /* No key data - just set the default TX key index */ if (sdata->default_key != sdata->keys[idx]) { ieee80211_debugfs_key_remove_default(sdata); sdata->default_key = sdata->keys[idx]; if (sdata->default_key) ieee80211_debugfs_key_add_default(sdata); } return 0; } return ieee80211_set_encryption( dev, bcaddr, idx, alg, !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((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_local *local = wdev_priv(dev->ieee80211_ptr); 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: break; case IW_AUTH_KEY_MGMT: if (sdata->type != IEEE80211_IF_TYPE_STA) ret = -EINVAL; else { /* * Key management was set by wpa_supplicant, * we only need this to associate to a network * that has privacy enabled regardless of not * having a key. */ sdata->u.sta.key_management_enabled = !!data->value; } break; case IW_AUTH_80211_AUTH_ALG: if (sdata->type == IEEE80211_IF_TYPE_STA || sdata->type == IEEE80211_IF_TYPE_IBSS) sdata->u.sta.auth_algs = data->value; else ret = -EOPNOTSUPP; break; case IW_AUTH_PRIVACY_INVOKED: if (local->ops->set_privacy_invoked) ret = local->ops->set_privacy_invoked( local_to_hw(local), data->value); 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->type == IEEE80211_IF_TYPE_STA || sdata->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; sta_info_put(sta); } 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->type == IEEE80211_IF_TYPE_STA || sdata->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 alg, idx, i; switch (ext->alg) { case IW_ENCODE_ALG_NONE: alg = ALG_NONE; 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) alg = ALG_NONE; 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, ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY, ext->key, ext->key_len); } static const struct iw_priv_args ieee80211_ioctl_priv[] = { { PRISM2_IOCTL_PRISM2_PARAM, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 2, 0, "param" }, { PRISM2_IOCTL_GET_PRISM2_PARAM, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "get_param" }, }; /* 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_set_spy, /* SIOCSIWSPY */ iw_handler_get_spy, /* SIOCGIWSPY */ iw_handler_set_thrspy, /* SIOCSIWTHRSPY */ iw_handler_get_thrspy, /* 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) NULL, /* 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 -- */ }; static const iw_handler ieee80211_private_handler[] = { /* SIOCIWFIRSTPRIV + */ (iw_handler) ieee80211_ioctl_prism2_param, /* 0 */ (iw_handler) ieee80211_ioctl_get_prism2_param, /* 1 */ }; const struct iw_handler_def ieee80211_iw_handler_def = { .num_standard = ARRAY_SIZE(ieee80211_handler), .num_private = ARRAY_SIZE(ieee80211_private_handler), .num_private_args = ARRAY_SIZE(ieee80211_ioctl_priv), .standard = (iw_handler *) ieee80211_handler, .private = (iw_handler *) ieee80211_private_handler, .private_args = (struct iw_priv_args *) ieee80211_ioctl_priv, .get_wireless_stats = ieee80211_get_wireless_stats, };