| /* |
| * mac80211 configuration hooks for cfg80211 |
| * |
| * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net> |
| * |
| * This file is GPLv2 as found in COPYING. |
| */ |
| |
| #include <linux/ieee80211.h> |
| #include <linux/nl80211.h> |
| #include <linux/rtnetlink.h> |
| #include <linux/slab.h> |
| #include <net/net_namespace.h> |
| #include <linux/rcupdate.h> |
| #include <linux/if_ether.h> |
| #include <net/cfg80211.h> |
| #include "ieee80211_i.h" |
| #include "driver-ops.h" |
| #include "cfg.h" |
| #include "rate.h" |
| #include "mesh.h" |
| |
| static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy, |
| const char *name, |
| enum nl80211_iftype type, |
| u32 *flags, |
| struct vif_params *params) |
| { |
| struct ieee80211_local *local = wiphy_priv(wiphy); |
| struct wireless_dev *wdev; |
| struct ieee80211_sub_if_data *sdata; |
| int err; |
| |
| err = ieee80211_if_add(local, name, &wdev, type, params); |
| if (err) |
| return ERR_PTR(err); |
| |
| if (type == NL80211_IFTYPE_MONITOR && flags) { |
| sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); |
| sdata->u.mntr_flags = *flags; |
| } |
| |
| return wdev; |
| } |
| |
| static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev) |
| { |
| ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev)); |
| |
| return 0; |
| } |
| |
| static int ieee80211_change_iface(struct wiphy *wiphy, |
| struct net_device *dev, |
| enum nl80211_iftype type, u32 *flags, |
| struct vif_params *params) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| int ret; |
| |
| ret = ieee80211_if_change_type(sdata, type); |
| if (ret) |
| return ret; |
| |
| if (type == NL80211_IFTYPE_AP_VLAN && |
| params && params->use_4addr == 0) |
| RCU_INIT_POINTER(sdata->u.vlan.sta, NULL); |
| else if (type == NL80211_IFTYPE_STATION && |
| params && params->use_4addr >= 0) |
| sdata->u.mgd.use_4addr = params->use_4addr; |
| |
| if (sdata->vif.type == NL80211_IFTYPE_MONITOR && flags) { |
| struct ieee80211_local *local = sdata->local; |
| |
| if (ieee80211_sdata_running(sdata)) { |
| /* |
| * Prohibit MONITOR_FLAG_COOK_FRAMES to be |
| * changed while the interface is up. |
| * Else we would need to add a lot of cruft |
| * to update everything: |
| * cooked_mntrs, monitor and all fif_* counters |
| * reconfigure hardware |
| */ |
| if ((*flags & MONITOR_FLAG_COOK_FRAMES) != |
| (sdata->u.mntr_flags & MONITOR_FLAG_COOK_FRAMES)) |
| return -EBUSY; |
| |
| ieee80211_adjust_monitor_flags(sdata, -1); |
| sdata->u.mntr_flags = *flags; |
| ieee80211_adjust_monitor_flags(sdata, 1); |
| |
| ieee80211_configure_filter(local); |
| } else { |
| /* |
| * Because the interface is down, ieee80211_do_stop |
| * and ieee80211_do_open take care of "everything" |
| * mentioned in the comment above. |
| */ |
| sdata->u.mntr_flags = *flags; |
| } |
| } |
| |
| return 0; |
| } |
| |
| static int ieee80211_start_p2p_device(struct wiphy *wiphy, |
| struct wireless_dev *wdev) |
| { |
| return ieee80211_do_open(wdev, true); |
| } |
| |
| static void ieee80211_stop_p2p_device(struct wiphy *wiphy, |
| struct wireless_dev *wdev) |
| { |
| ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev)); |
| } |
| |
| static int ieee80211_set_noack_map(struct wiphy *wiphy, |
| struct net_device *dev, |
| u16 noack_map) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| |
| sdata->noack_map = noack_map; |
| return 0; |
| } |
| |
| static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev, |
| u8 key_idx, bool pairwise, const u8 *mac_addr, |
| struct key_params *params) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| struct sta_info *sta = NULL; |
| struct ieee80211_key *key; |
| int err; |
| |
| if (!ieee80211_sdata_running(sdata)) |
| return -ENETDOWN; |
| |
| /* reject WEP and TKIP keys if WEP failed to initialize */ |
| switch (params->cipher) { |
| case WLAN_CIPHER_SUITE_WEP40: |
| case WLAN_CIPHER_SUITE_TKIP: |
| case WLAN_CIPHER_SUITE_WEP104: |
| if (IS_ERR(sdata->local->wep_tx_tfm)) |
| return -EINVAL; |
| break; |
| default: |
| break; |
| } |
| |
| key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len, |
| params->key, params->seq_len, params->seq); |
| if (IS_ERR(key)) |
| return PTR_ERR(key); |
| |
| if (pairwise) |
| key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE; |
| |
| mutex_lock(&sdata->local->sta_mtx); |
| |
| if (mac_addr) { |
| if (ieee80211_vif_is_mesh(&sdata->vif)) |
| sta = sta_info_get(sdata, mac_addr); |
| else |
| sta = sta_info_get_bss(sdata, mac_addr); |
| if (!sta) { |
| ieee80211_key_free(sdata->local, key); |
| err = -ENOENT; |
| goto out_unlock; |
| } |
| } |
| |
| switch (sdata->vif.type) { |
| case NL80211_IFTYPE_STATION: |
| if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED) |
| key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; |
| break; |
| case NL80211_IFTYPE_AP: |
| case NL80211_IFTYPE_AP_VLAN: |
| /* Keys without a station are used for TX only */ |
| if (key->sta && test_sta_flag(key->sta, WLAN_STA_MFP)) |
| key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; |
| break; |
| case NL80211_IFTYPE_ADHOC: |
| /* no MFP (yet) */ |
| break; |
| case NL80211_IFTYPE_MESH_POINT: |
| #ifdef CONFIG_MAC80211_MESH |
| if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE) |
| key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; |
| break; |
| #endif |
| case NL80211_IFTYPE_WDS: |
| case NL80211_IFTYPE_MONITOR: |
| case NL80211_IFTYPE_P2P_DEVICE: |
| case NL80211_IFTYPE_UNSPECIFIED: |
| case NUM_NL80211_IFTYPES: |
| case NL80211_IFTYPE_P2P_CLIENT: |
| case NL80211_IFTYPE_P2P_GO: |
| /* shouldn't happen */ |
| WARN_ON_ONCE(1); |
| break; |
| } |
| |
| err = ieee80211_key_link(key, sdata, sta); |
| if (err) |
| ieee80211_key_free(sdata->local, key); |
| |
| out_unlock: |
| mutex_unlock(&sdata->local->sta_mtx); |
| |
| return err; |
| } |
| |
| static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev, |
| u8 key_idx, bool pairwise, const u8 *mac_addr) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| struct ieee80211_local *local = sdata->local; |
| struct sta_info *sta; |
| struct ieee80211_key *key = NULL; |
| int ret; |
| |
| mutex_lock(&local->sta_mtx); |
| mutex_lock(&local->key_mtx); |
| |
| if (mac_addr) { |
| ret = -ENOENT; |
| |
| sta = sta_info_get_bss(sdata, mac_addr); |
| if (!sta) |
| goto out_unlock; |
| |
| if (pairwise) |
| key = key_mtx_dereference(local, sta->ptk); |
| else |
| key = key_mtx_dereference(local, sta->gtk[key_idx]); |
| } else |
| key = key_mtx_dereference(local, sdata->keys[key_idx]); |
| |
| if (!key) { |
| ret = -ENOENT; |
| goto out_unlock; |
| } |
| |
| __ieee80211_key_free(key); |
| |
| ret = 0; |
| out_unlock: |
| mutex_unlock(&local->key_mtx); |
| mutex_unlock(&local->sta_mtx); |
| |
| return ret; |
| } |
| |
| static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, |
| u8 key_idx, bool pairwise, const u8 *mac_addr, |
| void *cookie, |
| void (*callback)(void *cookie, |
| struct key_params *params)) |
| { |
| struct ieee80211_sub_if_data *sdata; |
| struct sta_info *sta = NULL; |
| u8 seq[6] = {0}; |
| struct key_params params; |
| struct ieee80211_key *key = NULL; |
| u64 pn64; |
| u32 iv32; |
| u16 iv16; |
| int err = -ENOENT; |
| |
| sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| |
| rcu_read_lock(); |
| |
| if (mac_addr) { |
| sta = sta_info_get_bss(sdata, mac_addr); |
| if (!sta) |
| goto out; |
| |
| if (pairwise) |
| key = rcu_dereference(sta->ptk); |
| else if (key_idx < NUM_DEFAULT_KEYS) |
| key = rcu_dereference(sta->gtk[key_idx]); |
| } else |
| key = rcu_dereference(sdata->keys[key_idx]); |
| |
| if (!key) |
| goto out; |
| |
| memset(¶ms, 0, sizeof(params)); |
| |
| params.cipher = key->conf.cipher; |
| |
| switch (key->conf.cipher) { |
| case WLAN_CIPHER_SUITE_TKIP: |
| iv32 = key->u.tkip.tx.iv32; |
| iv16 = key->u.tkip.tx.iv16; |
| |
| if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) |
| drv_get_tkip_seq(sdata->local, |
| key->conf.hw_key_idx, |
| &iv32, &iv16); |
| |
| seq[0] = iv16 & 0xff; |
| seq[1] = (iv16 >> 8) & 0xff; |
| seq[2] = iv32 & 0xff; |
| seq[3] = (iv32 >> 8) & 0xff; |
| seq[4] = (iv32 >> 16) & 0xff; |
| seq[5] = (iv32 >> 24) & 0xff; |
| params.seq = seq; |
| params.seq_len = 6; |
| break; |
| case WLAN_CIPHER_SUITE_CCMP: |
| pn64 = atomic64_read(&key->u.ccmp.tx_pn); |
| seq[0] = pn64; |
| seq[1] = pn64 >> 8; |
| seq[2] = pn64 >> 16; |
| seq[3] = pn64 >> 24; |
| seq[4] = pn64 >> 32; |
| seq[5] = pn64 >> 40; |
| params.seq = seq; |
| params.seq_len = 6; |
| break; |
| case WLAN_CIPHER_SUITE_AES_CMAC: |
| pn64 = atomic64_read(&key->u.aes_cmac.tx_pn); |
| seq[0] = pn64; |
| seq[1] = pn64 >> 8; |
| seq[2] = pn64 >> 16; |
| seq[3] = pn64 >> 24; |
| seq[4] = pn64 >> 32; |
| seq[5] = pn64 >> 40; |
| params.seq = seq; |
| params.seq_len = 6; |
| break; |
| } |
| |
| params.key = key->conf.key; |
| params.key_len = key->conf.keylen; |
| |
| callback(cookie, ¶ms); |
| err = 0; |
| |
| out: |
| rcu_read_unlock(); |
| return err; |
| } |
| |
| static int ieee80211_config_default_key(struct wiphy *wiphy, |
| struct net_device *dev, |
| u8 key_idx, bool uni, |
| bool multi) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| |
| ieee80211_set_default_key(sdata, key_idx, uni, multi); |
| |
| return 0; |
| } |
| |
| static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy, |
| struct net_device *dev, |
| u8 key_idx) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| |
| ieee80211_set_default_mgmt_key(sdata, key_idx); |
| |
| return 0; |
| } |
| |
| void sta_set_rate_info_tx(struct sta_info *sta, |
| const struct ieee80211_tx_rate *rate, |
| struct rate_info *rinfo) |
| { |
| rinfo->flags = 0; |
| if (rate->flags & IEEE80211_TX_RC_MCS) { |
| rinfo->flags |= RATE_INFO_FLAGS_MCS; |
| rinfo->mcs = rate->idx; |
| } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) { |
| rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; |
| rinfo->mcs = ieee80211_rate_get_vht_mcs(rate); |
| rinfo->nss = ieee80211_rate_get_vht_nss(rate); |
| } else { |
| struct ieee80211_supported_band *sband; |
| sband = sta->local->hw.wiphy->bands[ |
| ieee80211_get_sdata_band(sta->sdata)]; |
| rinfo->legacy = sband->bitrates[rate->idx].bitrate; |
| } |
| if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH) |
| rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH; |
| if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH) |
| rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH; |
| if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH) |
| rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH; |
| if (rate->flags & IEEE80211_TX_RC_SHORT_GI) |
| rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; |
| } |
| |
| void sta_set_rate_info_rx(struct sta_info *sta, struct rate_info *rinfo) |
| { |
| rinfo->flags = 0; |
| |
| if (sta->last_rx_rate_flag & RX_FLAG_HT) { |
| rinfo->flags |= RATE_INFO_FLAGS_MCS; |
| rinfo->mcs = sta->last_rx_rate_idx; |
| } else if (sta->last_rx_rate_flag & RX_FLAG_VHT) { |
| rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; |
| rinfo->nss = sta->last_rx_rate_vht_nss; |
| rinfo->mcs = sta->last_rx_rate_idx; |
| } else { |
| struct ieee80211_supported_band *sband; |
| |
| sband = sta->local->hw.wiphy->bands[ |
| ieee80211_get_sdata_band(sta->sdata)]; |
| rinfo->legacy = |
| sband->bitrates[sta->last_rx_rate_idx].bitrate; |
| } |
| |
| if (sta->last_rx_rate_flag & RX_FLAG_40MHZ) |
| rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH; |
| if (sta->last_rx_rate_flag & RX_FLAG_SHORT_GI) |
| rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; |
| if (sta->last_rx_rate_flag & RX_FLAG_80MHZ) |
| rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH; |
| if (sta->last_rx_rate_flag & RX_FLAG_80P80MHZ) |
| rinfo->flags |= RATE_INFO_FLAGS_80P80_MHZ_WIDTH; |
| if (sta->last_rx_rate_flag & RX_FLAG_160MHZ) |
| rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH; |
| } |
| |
| static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo) |
| { |
| struct ieee80211_sub_if_data *sdata = sta->sdata; |
| struct ieee80211_local *local = sdata->local; |
| struct timespec uptime; |
| |
| sinfo->generation = sdata->local->sta_generation; |
| |
| sinfo->filled = STATION_INFO_INACTIVE_TIME | |
| STATION_INFO_RX_BYTES | |
| STATION_INFO_TX_BYTES | |
| STATION_INFO_RX_PACKETS | |
| STATION_INFO_TX_PACKETS | |
| STATION_INFO_TX_RETRIES | |
| STATION_INFO_TX_FAILED | |
| STATION_INFO_TX_BITRATE | |
| STATION_INFO_RX_BITRATE | |
| STATION_INFO_RX_DROP_MISC | |
| STATION_INFO_BSS_PARAM | |
| STATION_INFO_CONNECTED_TIME | |
| STATION_INFO_STA_FLAGS | |
| STATION_INFO_BEACON_LOSS_COUNT; |
| |
| do_posix_clock_monotonic_gettime(&uptime); |
| sinfo->connected_time = uptime.tv_sec - sta->last_connected; |
| |
| sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx); |
| sinfo->rx_bytes = sta->rx_bytes; |
| sinfo->tx_bytes = sta->tx_bytes; |
| sinfo->rx_packets = sta->rx_packets; |
| sinfo->tx_packets = sta->tx_packets; |
| sinfo->tx_retries = sta->tx_retry_count; |
| sinfo->tx_failed = sta->tx_retry_failed; |
| sinfo->rx_dropped_misc = sta->rx_dropped; |
| sinfo->beacon_loss_count = sta->beacon_loss_count; |
| |
| if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) || |
| (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) { |
| sinfo->filled |= STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG; |
| if (!local->ops->get_rssi || |
| drv_get_rssi(local, sdata, &sta->sta, &sinfo->signal)) |
| sinfo->signal = (s8)sta->last_signal; |
| sinfo->signal_avg = (s8) -ewma_read(&sta->avg_signal); |
| } |
| |
| sta_set_rate_info_tx(sta, &sta->last_tx_rate, &sinfo->txrate); |
| sta_set_rate_info_rx(sta, &sinfo->rxrate); |
| |
| if (ieee80211_vif_is_mesh(&sdata->vif)) { |
| #ifdef CONFIG_MAC80211_MESH |
| sinfo->filled |= STATION_INFO_LLID | |
| STATION_INFO_PLID | |
| STATION_INFO_PLINK_STATE; |
| |
| sinfo->llid = le16_to_cpu(sta->llid); |
| sinfo->plid = le16_to_cpu(sta->plid); |
| sinfo->plink_state = sta->plink_state; |
| if (test_sta_flag(sta, WLAN_STA_TOFFSET_KNOWN)) { |
| sinfo->filled |= STATION_INFO_T_OFFSET; |
| sinfo->t_offset = sta->t_offset; |
| } |
| #endif |
| } |
| |
| sinfo->bss_param.flags = 0; |
| if (sdata->vif.bss_conf.use_cts_prot) |
| sinfo->bss_param.flags |= BSS_PARAM_FLAGS_CTS_PROT; |
| if (sdata->vif.bss_conf.use_short_preamble) |
| sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_PREAMBLE; |
| if (sdata->vif.bss_conf.use_short_slot) |
| sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_SLOT_TIME; |
| sinfo->bss_param.dtim_period = sdata->local->hw.conf.ps_dtim_period; |
| sinfo->bss_param.beacon_interval = sdata->vif.bss_conf.beacon_int; |
| |
| sinfo->sta_flags.set = 0; |
| sinfo->sta_flags.mask = BIT(NL80211_STA_FLAG_AUTHORIZED) | |
| BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) | |
| BIT(NL80211_STA_FLAG_WME) | |
| BIT(NL80211_STA_FLAG_MFP) | |
| BIT(NL80211_STA_FLAG_AUTHENTICATED) | |
| BIT(NL80211_STA_FLAG_ASSOCIATED) | |
| BIT(NL80211_STA_FLAG_TDLS_PEER); |
| if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) |
| sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_AUTHORIZED); |
| if (test_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE)) |
| sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE); |
| if (test_sta_flag(sta, WLAN_STA_WME)) |
| sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_WME); |
| if (test_sta_flag(sta, WLAN_STA_MFP)) |
| sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_MFP); |
| if (test_sta_flag(sta, WLAN_STA_AUTH)) |
| sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_AUTHENTICATED); |
| if (test_sta_flag(sta, WLAN_STA_ASSOC)) |
| sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_ASSOCIATED); |
| if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) |
| sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_TDLS_PEER); |
| } |
| |
| static const char ieee80211_gstrings_sta_stats[][ETH_GSTRING_LEN] = { |
| "rx_packets", "rx_bytes", "wep_weak_iv_count", |
| "rx_duplicates", "rx_fragments", "rx_dropped", |
| "tx_packets", "tx_bytes", "tx_fragments", |
| "tx_filtered", "tx_retry_failed", "tx_retries", |
| "beacon_loss", "sta_state", "txrate", "rxrate", "signal", |
| "channel", "noise", "ch_time", "ch_time_busy", |
| "ch_time_ext_busy", "ch_time_rx", "ch_time_tx" |
| }; |
| #define STA_STATS_LEN ARRAY_SIZE(ieee80211_gstrings_sta_stats) |
| |
| static int ieee80211_get_et_sset_count(struct wiphy *wiphy, |
| struct net_device *dev, |
| int sset) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| int rv = 0; |
| |
| if (sset == ETH_SS_STATS) |
| rv += STA_STATS_LEN; |
| |
| rv += drv_get_et_sset_count(sdata, sset); |
| |
| if (rv == 0) |
| return -EOPNOTSUPP; |
| return rv; |
| } |
| |
| static void ieee80211_get_et_stats(struct wiphy *wiphy, |
| struct net_device *dev, |
| struct ethtool_stats *stats, |
| u64 *data) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| struct ieee80211_chanctx_conf *chanctx_conf; |
| struct ieee80211_channel *channel; |
| struct sta_info *sta; |
| struct ieee80211_local *local = sdata->local; |
| struct station_info sinfo; |
| struct survey_info survey; |
| int i, q; |
| #define STA_STATS_SURVEY_LEN 7 |
| |
| memset(data, 0, sizeof(u64) * STA_STATS_LEN); |
| |
| #define ADD_STA_STATS(sta) \ |
| do { \ |
| data[i++] += sta->rx_packets; \ |
| data[i++] += sta->rx_bytes; \ |
| data[i++] += sta->wep_weak_iv_count; \ |
| data[i++] += sta->num_duplicates; \ |
| data[i++] += sta->rx_fragments; \ |
| data[i++] += sta->rx_dropped; \ |
| \ |
| data[i++] += sta->tx_packets; \ |
| data[i++] += sta->tx_bytes; \ |
| data[i++] += sta->tx_fragments; \ |
| data[i++] += sta->tx_filtered_count; \ |
| data[i++] += sta->tx_retry_failed; \ |
| data[i++] += sta->tx_retry_count; \ |
| data[i++] += sta->beacon_loss_count; \ |
| } while (0) |
| |
| /* For Managed stations, find the single station based on BSSID |
| * and use that. For interface types, iterate through all available |
| * stations and add stats for any station that is assigned to this |
| * network device. |
| */ |
| |
| mutex_lock(&local->sta_mtx); |
| |
| if (sdata->vif.type == NL80211_IFTYPE_STATION) { |
| sta = sta_info_get_bss(sdata, sdata->u.mgd.bssid); |
| |
| if (!(sta && !WARN_ON(sta->sdata->dev != dev))) |
| goto do_survey; |
| |
| i = 0; |
| ADD_STA_STATS(sta); |
| |
| data[i++] = sta->sta_state; |
| |
| sinfo.filled = 0; |
| sta_set_sinfo(sta, &sinfo); |
| |
| if (sinfo.filled & STATION_INFO_TX_BITRATE) |
| data[i] = 100000 * |
| cfg80211_calculate_bitrate(&sinfo.txrate); |
| i++; |
| if (sinfo.filled & STATION_INFO_RX_BITRATE) |
| data[i] = 100000 * |
| cfg80211_calculate_bitrate(&sinfo.rxrate); |
| i++; |
| |
| if (sinfo.filled & STATION_INFO_SIGNAL_AVG) |
| data[i] = (u8)sinfo.signal_avg; |
| i++; |
| } else { |
| list_for_each_entry(sta, &local->sta_list, list) { |
| /* Make sure this station belongs to the proper dev */ |
| if (sta->sdata->dev != dev) |
| continue; |
| |
| i = 0; |
| ADD_STA_STATS(sta); |
| } |
| } |
| |
| do_survey: |
| i = STA_STATS_LEN - STA_STATS_SURVEY_LEN; |
| /* Get survey stats for current channel */ |
| survey.filled = 0; |
| |
| rcu_read_lock(); |
| chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); |
| if (chanctx_conf) |
| channel = chanctx_conf->def.chan; |
| else |
| channel = NULL; |
| rcu_read_unlock(); |
| |
| if (channel) { |
| q = 0; |
| do { |
| survey.filled = 0; |
| if (drv_get_survey(local, q, &survey) != 0) { |
| survey.filled = 0; |
| break; |
| } |
| q++; |
| } while (channel != survey.channel); |
| } |
| |
| if (survey.filled) |
| data[i++] = survey.channel->center_freq; |
| else |
| data[i++] = 0; |
| if (survey.filled & SURVEY_INFO_NOISE_DBM) |
| data[i++] = (u8)survey.noise; |
| else |
| data[i++] = -1LL; |
| if (survey.filled & SURVEY_INFO_CHANNEL_TIME) |
| data[i++] = survey.channel_time; |
| else |
| data[i++] = -1LL; |
| if (survey.filled & SURVEY_INFO_CHANNEL_TIME_BUSY) |
| data[i++] = survey.channel_time_busy; |
| else |
| data[i++] = -1LL; |
| if (survey.filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) |
| data[i++] = survey.channel_time_ext_busy; |
| else |
| data[i++] = -1LL; |
| if (survey.filled & SURVEY_INFO_CHANNEL_TIME_RX) |
| data[i++] = survey.channel_time_rx; |
| else |
| data[i++] = -1LL; |
| if (survey.filled & SURVEY_INFO_CHANNEL_TIME_TX) |
| data[i++] = survey.channel_time_tx; |
| else |
| data[i++] = -1LL; |
| |
| mutex_unlock(&local->sta_mtx); |
| |
| if (WARN_ON(i != STA_STATS_LEN)) |
| return; |
| |
| drv_get_et_stats(sdata, stats, &(data[STA_STATS_LEN])); |
| } |
| |
| static void ieee80211_get_et_strings(struct wiphy *wiphy, |
| struct net_device *dev, |
| u32 sset, u8 *data) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| int sz_sta_stats = 0; |
| |
| if (sset == ETH_SS_STATS) { |
| sz_sta_stats = sizeof(ieee80211_gstrings_sta_stats); |
| memcpy(data, *ieee80211_gstrings_sta_stats, sz_sta_stats); |
| } |
| drv_get_et_strings(sdata, sset, &(data[sz_sta_stats])); |
| } |
| |
| static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev, |
| int idx, u8 *mac, struct station_info *sinfo) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| struct ieee80211_local *local = sdata->local; |
| struct sta_info *sta; |
| int ret = -ENOENT; |
| |
| mutex_lock(&local->sta_mtx); |
| |
| sta = sta_info_get_by_idx(sdata, idx); |
| if (sta) { |
| ret = 0; |
| memcpy(mac, sta->sta.addr, ETH_ALEN); |
| sta_set_sinfo(sta, sinfo); |
| } |
| |
| mutex_unlock(&local->sta_mtx); |
| |
| return ret; |
| } |
| |
| static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev, |
| int idx, struct survey_info *survey) |
| { |
| struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); |
| |
| return drv_get_survey(local, idx, survey); |
| } |
| |
| static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev, |
| u8 *mac, struct station_info *sinfo) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| struct ieee80211_local *local = sdata->local; |
| struct sta_info *sta; |
| int ret = -ENOENT; |
| |
| mutex_lock(&local->sta_mtx); |
| |
| sta = sta_info_get_bss(sdata, mac); |
| if (sta) { |
| ret = 0; |
| sta_set_sinfo(sta, sinfo); |
| } |
| |
| mutex_unlock(&local->sta_mtx); |
| |
| return ret; |
| } |
| |
| static int ieee80211_set_monitor_channel(struct wiphy *wiphy, |
| struct cfg80211_chan_def *chandef) |
| { |
| struct ieee80211_local *local = wiphy_priv(wiphy); |
| struct ieee80211_sub_if_data *sdata; |
| int ret = 0; |
| |
| if (cfg80211_chandef_identical(&local->monitor_chandef, chandef)) |
| return 0; |
| |
| mutex_lock(&local->iflist_mtx); |
| if (local->use_chanctx) { |
| sdata = rcu_dereference_protected( |
| local->monitor_sdata, |
| lockdep_is_held(&local->iflist_mtx)); |
| if (sdata) { |
| ieee80211_vif_release_channel(sdata); |
| ret = ieee80211_vif_use_channel(sdata, chandef, |
| IEEE80211_CHANCTX_EXCLUSIVE); |
| } |
| } else if (local->open_count == local->monitors) { |
| local->_oper_channel = chandef->chan; |
| local->_oper_channel_type = cfg80211_get_chandef_type(chandef); |
| ieee80211_hw_config(local, 0); |
| } |
| |
| if (ret == 0) |
| local->monitor_chandef = *chandef; |
| mutex_unlock(&local->iflist_mtx); |
| |
| return ret; |
| } |
| |
| static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata, |
| const u8 *resp, size_t resp_len) |
| { |
| struct probe_resp *new, *old; |
| |
| if (!resp || !resp_len) |
| return 1; |
| |
| old = rtnl_dereference(sdata->u.ap.probe_resp); |
| |
| new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL); |
| if (!new) |
| return -ENOMEM; |
| |
| new->len = resp_len; |
| memcpy(new->data, resp, resp_len); |
| |
| rcu_assign_pointer(sdata->u.ap.probe_resp, new); |
| if (old) |
| kfree_rcu(old, rcu_head); |
| |
| return 0; |
| } |
| |
| static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata, |
| struct cfg80211_beacon_data *params) |
| { |
| struct beacon_data *new, *old; |
| int new_head_len, new_tail_len; |
| int size, err; |
| u32 changed = BSS_CHANGED_BEACON; |
| |
| old = rtnl_dereference(sdata->u.ap.beacon); |
| |
| /* Need to have a beacon head if we don't have one yet */ |
| if (!params->head && !old) |
| return -EINVAL; |
| |
| /* new or old head? */ |
| if (params->head) |
| new_head_len = params->head_len; |
| else |
| new_head_len = old->head_len; |
| |
| /* new or old tail? */ |
| if (params->tail || !old) |
| /* params->tail_len will be zero for !params->tail */ |
| new_tail_len = params->tail_len; |
| else |
| new_tail_len = old->tail_len; |
| |
| size = sizeof(*new) + new_head_len + new_tail_len; |
| |
| new = kzalloc(size, GFP_KERNEL); |
| if (!new) |
| return -ENOMEM; |
| |
| /* start filling the new info now */ |
| |
| /* |
| * pointers go into the block we allocated, |
| * memory is | beacon_data | head | tail | |
| */ |
| new->head = ((u8 *) new) + sizeof(*new); |
| new->tail = new->head + new_head_len; |
| new->head_len = new_head_len; |
| new->tail_len = new_tail_len; |
| |
| /* copy in head */ |
| if (params->head) |
| memcpy(new->head, params->head, new_head_len); |
| else |
| memcpy(new->head, old->head, new_head_len); |
| |
| /* copy in optional tail */ |
| if (params->tail) |
| memcpy(new->tail, params->tail, new_tail_len); |
| else |
| if (old) |
| memcpy(new->tail, old->tail, new_tail_len); |
| |
| err = ieee80211_set_probe_resp(sdata, params->probe_resp, |
| params->probe_resp_len); |
| if (err < 0) |
| return err; |
| if (err == 0) |
| changed |= BSS_CHANGED_AP_PROBE_RESP; |
| |
| rcu_assign_pointer(sdata->u.ap.beacon, new); |
| |
| if (old) |
| kfree_rcu(old, rcu_head); |
| |
| return changed; |
| } |
| |
| static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, |
| struct cfg80211_ap_settings *params) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| struct beacon_data *old; |
| struct ieee80211_sub_if_data *vlan; |
| u32 changed = BSS_CHANGED_BEACON_INT | |
| BSS_CHANGED_BEACON_ENABLED | |
| BSS_CHANGED_BEACON | |
| BSS_CHANGED_SSID | |
| BSS_CHANGED_P2P_PS; |
| int err; |
| |
| old = rtnl_dereference(sdata->u.ap.beacon); |
| if (old) |
| return -EALREADY; |
| |
| /* TODO: make hostapd tell us what it wants */ |
| sdata->smps_mode = IEEE80211_SMPS_OFF; |
| sdata->needed_rx_chains = sdata->local->rx_chains; |
| |
| err = ieee80211_vif_use_channel(sdata, ¶ms->chandef, |
| IEEE80211_CHANCTX_SHARED); |
| if (err) |
| return err; |
| |
| /* |
| * Apply control port protocol, this allows us to |
| * not encrypt dynamic WEP control frames. |
| */ |
| sdata->control_port_protocol = params->crypto.control_port_ethertype; |
| sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt; |
| list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) { |
| vlan->control_port_protocol = |
| params->crypto.control_port_ethertype; |
| vlan->control_port_no_encrypt = |
| params->crypto.control_port_no_encrypt; |
| } |
| |
| sdata->vif.bss_conf.beacon_int = params->beacon_interval; |
| sdata->vif.bss_conf.dtim_period = params->dtim_period; |
| sdata->vif.bss_conf.enable_beacon = true; |
| |
| sdata->vif.bss_conf.ssid_len = params->ssid_len; |
| if (params->ssid_len) |
| memcpy(sdata->vif.bss_conf.ssid, params->ssid, |
| params->ssid_len); |
| sdata->vif.bss_conf.hidden_ssid = |
| (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE); |
| |
| sdata->vif.bss_conf.p2p_ctwindow = params->p2p_ctwindow; |
| sdata->vif.bss_conf.p2p_oppps = params->p2p_opp_ps; |
| |
| err = ieee80211_assign_beacon(sdata, ¶ms->beacon); |
| if (err < 0) |
| return err; |
| changed |= err; |
| |
| err = drv_start_ap(sdata->local, sdata); |
| if (err) { |
| old = rtnl_dereference(sdata->u.ap.beacon); |
| if (old) |
| kfree_rcu(old, rcu_head); |
| RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); |
| return err; |
| } |
| |
| ieee80211_bss_info_change_notify(sdata, changed); |
| |
| netif_carrier_on(dev); |
| list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) |
| netif_carrier_on(vlan->dev); |
| |
| return 0; |
| } |
| |
| static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev, |
| struct cfg80211_beacon_data *params) |
| { |
| struct ieee80211_sub_if_data *sdata; |
| struct beacon_data *old; |
| int err; |
| |
| sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| |
| old = rtnl_dereference(sdata->u.ap.beacon); |
| if (!old) |
| return -ENOENT; |
| |
| err = ieee80211_assign_beacon(sdata, params); |
| if (err < 0) |
| return err; |
| ieee80211_bss_info_change_notify(sdata, err); |
| return 0; |
| } |
| |
| static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| struct ieee80211_sub_if_data *vlan; |
| struct ieee80211_local *local = sdata->local; |
| struct beacon_data *old_beacon; |
| struct probe_resp *old_probe_resp; |
| |
| old_beacon = rtnl_dereference(sdata->u.ap.beacon); |
| if (!old_beacon) |
| return -ENOENT; |
| old_probe_resp = rtnl_dereference(sdata->u.ap.probe_resp); |
| |
| /* turn off carrier for this interface and dependent VLANs */ |
| list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) |
| netif_carrier_off(vlan->dev); |
| netif_carrier_off(dev); |
| |
| /* remove beacon and probe response */ |
| RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); |
| RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL); |
| kfree_rcu(old_beacon, rcu_head); |
| if (old_probe_resp) |
| kfree_rcu(old_probe_resp, rcu_head); |
| |
| list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) |
| sta_info_flush_defer(vlan); |
| sta_info_flush_defer(sdata); |
| rcu_barrier(); |
| list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) |
| sta_info_flush_cleanup(vlan); |
| sta_info_flush_cleanup(sdata); |
| |
| sdata->vif.bss_conf.enable_beacon = false; |
| clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state); |
| ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED); |
| |
| drv_stop_ap(sdata->local, sdata); |
| |
| /* free all potentially still buffered bcast frames */ |
| local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf); |
| skb_queue_purge(&sdata->u.ap.ps.bc_buf); |
| |
| ieee80211_vif_release_channel(sdata); |
| |
| return 0; |
| } |
| |
| /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */ |
| struct iapp_layer2_update { |
| u8 da[ETH_ALEN]; /* broadcast */ |
| u8 sa[ETH_ALEN]; /* STA addr */ |
| __be16 len; /* 6 */ |
| u8 dsap; /* 0 */ |
| u8 ssap; /* 0 */ |
| u8 control; |
| u8 xid_info[3]; |
| } __packed; |
| |
| static void ieee80211_send_layer2_update(struct sta_info *sta) |
| { |
| struct iapp_layer2_update *msg; |
| struct sk_buff *skb; |
| |
| /* Send Level 2 Update Frame to update forwarding tables in layer 2 |
| * bridge devices */ |
| |
| skb = dev_alloc_skb(sizeof(*msg)); |
| if (!skb) |
| return; |
| msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg)); |
| |
| /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID) |
| * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */ |
| |
| eth_broadcast_addr(msg->da); |
| memcpy(msg->sa, sta->sta.addr, ETH_ALEN); |
| msg->len = htons(6); |
| msg->dsap = 0; |
| msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */ |
| msg->control = 0xaf; /* XID response lsb.1111F101. |
| * F=0 (no poll command; unsolicited frame) */ |
| msg->xid_info[0] = 0x81; /* XID format identifier */ |
| msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */ |
| msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */ |
| |
| skb->dev = sta->sdata->dev; |
| skb->protocol = eth_type_trans(skb, sta->sdata->dev); |
| memset(skb->cb, 0, sizeof(skb->cb)); |
| netif_rx_ni(skb); |
| } |
| |
| static int sta_apply_auth_flags(struct ieee80211_local *local, |
| struct sta_info *sta, |
| u32 mask, u32 set) |
| { |
| int ret; |
| |
| if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && |
| set & BIT(NL80211_STA_FLAG_AUTHENTICATED) && |
| !test_sta_flag(sta, WLAN_STA_AUTH)) { |
| ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); |
| if (ret) |
| return ret; |
| } |
| |
| if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && |
| set & BIT(NL80211_STA_FLAG_ASSOCIATED) && |
| !test_sta_flag(sta, WLAN_STA_ASSOC)) { |
| ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); |
| if (ret) |
| return ret; |
| } |
| |
| if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { |
| if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) |
| ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED); |
| else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) |
| ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); |
| else |
| ret = 0; |
| if (ret) |
| return ret; |
| } |
| |
| if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && |
| !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) && |
| test_sta_flag(sta, WLAN_STA_ASSOC)) { |
| ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); |
| if (ret) |
| return ret; |
| } |
| |
| if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && |
| !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) && |
| test_sta_flag(sta, WLAN_STA_AUTH)) { |
| ret = sta_info_move_state(sta, IEEE80211_STA_NONE); |
| if (ret) |
| return ret; |
| } |
| |
| return 0; |
| } |
| |
| static int sta_apply_parameters(struct ieee80211_local *local, |
| struct sta_info *sta, |
| struct station_parameters *params) |
| { |
| int ret = 0; |
| u32 rates; |
| int i, j; |
| struct ieee80211_supported_band *sband; |
| struct ieee80211_sub_if_data *sdata = sta->sdata; |
| enum ieee80211_band band = ieee80211_get_sdata_band(sdata); |
| u32 mask, set; |
| |
| sband = local->hw.wiphy->bands[band]; |
| |
| mask = params->sta_flags_mask; |
| set = params->sta_flags_set; |
| |
| if (ieee80211_vif_is_mesh(&sdata->vif)) { |
| /* |
| * In mesh mode, ASSOCIATED isn't part of the nl80211 |
| * API but must follow AUTHENTICATED for driver state. |
| */ |
| if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) |
| mask |= BIT(NL80211_STA_FLAG_ASSOCIATED); |
| if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) |
| set |= BIT(NL80211_STA_FLAG_ASSOCIATED); |
| } |
| |
| ret = sta_apply_auth_flags(local, sta, mask, set); |
| if (ret) |
| return ret; |
| |
| if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) { |
| if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) |
| set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); |
| else |
| clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); |
| } |
| |
| if (mask & BIT(NL80211_STA_FLAG_WME)) { |
| if (set & BIT(NL80211_STA_FLAG_WME)) { |
| set_sta_flag(sta, WLAN_STA_WME); |
| sta->sta.wme = true; |
| } else { |
| clear_sta_flag(sta, WLAN_STA_WME); |
| sta->sta.wme = false; |
| } |
| } |
| |
| if (mask & BIT(NL80211_STA_FLAG_MFP)) { |
| if (set & BIT(NL80211_STA_FLAG_MFP)) |
| set_sta_flag(sta, WLAN_STA_MFP); |
| else |
| clear_sta_flag(sta, WLAN_STA_MFP); |
| } |
| |
| if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) { |
| if (set & BIT(NL80211_STA_FLAG_TDLS_PEER)) |
| set_sta_flag(sta, WLAN_STA_TDLS_PEER); |
| else |
| clear_sta_flag(sta, WLAN_STA_TDLS_PEER); |
| } |
| |
| if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) { |
| sta->sta.uapsd_queues = params->uapsd_queues; |
| sta->sta.max_sp = params->max_sp; |
| } |
| |
| /* |
| * cfg80211 validates this (1-2007) and allows setting the AID |
| * only when creating a new station entry |
| */ |
| if (params->aid) |
| sta->sta.aid = params->aid; |
| |
| /* |
| * Some of the following updates would be racy if called on an |
| * existing station, via ieee80211_change_station(). However, |
| * all such changes are rejected by cfg80211 except for updates |
| * changing the supported rates on an existing but not yet used |
| * TDLS peer. |
| */ |
| |
| if (params->listen_interval >= 0) |
| sta->listen_interval = params->listen_interval; |
| |
| if (params->supported_rates) { |
| rates = 0; |
| |
| for (i = 0; i < params->supported_rates_len; i++) { |
| int rate = (params->supported_rates[i] & 0x7f) * 5; |
| for (j = 0; j < sband->n_bitrates; j++) { |
| if (sband->bitrates[j].bitrate == rate) |
| rates |= BIT(j); |
| } |
| } |
| sta->sta.supp_rates[band] = rates; |
| } |
| |
| if (params->ht_capa) |
| ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, |
| params->ht_capa, |
| &sta->sta.ht_cap); |
| |
| if (params->vht_capa) |
| ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, |
| params->vht_capa, |
| &sta->sta.vht_cap); |
| |
| if (ieee80211_vif_is_mesh(&sdata->vif)) { |
| #ifdef CONFIG_MAC80211_MESH |
| if (sdata->u.mesh.security & IEEE80211_MESH_SEC_SECURED) |
| switch (params->plink_state) { |
| case NL80211_PLINK_LISTEN: |
| case NL80211_PLINK_ESTAB: |
| case NL80211_PLINK_BLOCKED: |
| sta->plink_state = params->plink_state; |
| break; |
| default: |
| /* nothing */ |
| break; |
| } |
| else |
| switch (params->plink_action) { |
| case PLINK_ACTION_OPEN: |
| mesh_plink_open(sta); |
| break; |
| case PLINK_ACTION_BLOCK: |
| mesh_plink_block(sta); |
| break; |
| } |
| #endif |
| } |
| |
| return 0; |
| } |
| |
| static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, |
| u8 *mac, struct station_parameters *params) |
| { |
| struct ieee80211_local *local = wiphy_priv(wiphy); |
| struct sta_info *sta; |
| struct ieee80211_sub_if_data *sdata; |
| int err; |
| int layer2_update; |
| |
| if (params->vlan) { |
| sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); |
| |
| if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && |
| sdata->vif.type != NL80211_IFTYPE_AP) |
| return -EINVAL; |
| } else |
| sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| |
| if (ether_addr_equal(mac, sdata->vif.addr)) |
| return -EINVAL; |
| |
| if (is_multicast_ether_addr(mac)) |
| return -EINVAL; |
| |
| sta = sta_info_alloc(sdata, mac, GFP_KERNEL); |
| if (!sta) |
| return -ENOMEM; |
| |
| /* |
| * defaults -- if userspace wants something else we'll |
| * change it accordingly in sta_apply_parameters() |
| */ |
| sta_info_pre_move_state(sta, IEEE80211_STA_AUTH); |
| sta_info_pre_move_state(sta, IEEE80211_STA_ASSOC); |
| |
| err = sta_apply_parameters(local, sta, params); |
| if (err) { |
| sta_info_free(local, sta); |
| return err; |
| } |
| |
| /* |
| * for TDLS, rate control should be initialized only when supported |
| * rates are known. |
| */ |
| if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) |
| rate_control_rate_init(sta); |
| |
| layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN || |
| sdata->vif.type == NL80211_IFTYPE_AP; |
| |
| err = sta_info_insert_rcu(sta); |
| if (err) { |
| rcu_read_unlock(); |
| return err; |
| } |
| |
| if (layer2_update) |
| ieee80211_send_layer2_update(sta); |
| |
| rcu_read_unlock(); |
| |
| return 0; |
| } |
| |
| static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, |
| u8 *mac) |
| { |
| struct ieee80211_sub_if_data *sdata; |
| |
| sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| |
| if (mac) |
| return sta_info_destroy_addr_bss(sdata, mac); |
| |
| sta_info_flush(sdata); |
| return 0; |
| } |
| |
| static int ieee80211_change_station(struct wiphy *wiphy, |
| struct net_device *dev, |
| u8 *mac, |
| struct station_parameters *params) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| struct ieee80211_local *local = wiphy_priv(wiphy); |
| struct sta_info *sta; |
| struct ieee80211_sub_if_data *vlansdata; |
| int err; |
| |
| mutex_lock(&local->sta_mtx); |
| |
| sta = sta_info_get_bss(sdata, mac); |
| if (!sta) { |
| mutex_unlock(&local->sta_mtx); |
| return -ENOENT; |
| } |
| |
| /* in station mode, supported rates are only valid with TDLS */ |
| if (sdata->vif.type == NL80211_IFTYPE_STATION && |
| params->supported_rates && |
| !test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { |
| mutex_unlock(&local->sta_mtx); |
| return -EINVAL; |
| } |
| |
| if (params->vlan && params->vlan != sta->sdata->dev) { |
| bool prev_4addr = false; |
| bool new_4addr = false; |
| |
| vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); |
| |
| if (vlansdata->vif.type != NL80211_IFTYPE_AP_VLAN && |
| vlansdata->vif.type != NL80211_IFTYPE_AP) { |
| mutex_unlock(&local->sta_mtx); |
| return -EINVAL; |
| } |
| |
| if (params->vlan->ieee80211_ptr->use_4addr) { |
| if (vlansdata->u.vlan.sta) { |
| mutex_unlock(&local->sta_mtx); |
| return -EBUSY; |
| } |
| |
| rcu_assign_pointer(vlansdata->u.vlan.sta, sta); |
| new_4addr = true; |
| } |
| |
| if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN && |
| sta->sdata->u.vlan.sta) { |
| rcu_assign_pointer(sta->sdata->u.vlan.sta, NULL); |
| prev_4addr = true; |
| } |
| |
| sta->sdata = vlansdata; |
| |
| if (sta->sta_state == IEEE80211_STA_AUTHORIZED && |
| prev_4addr != new_4addr) { |
| if (new_4addr) |
| atomic_dec(&sta->sdata->bss->num_mcast_sta); |
| else |
| atomic_inc(&sta->sdata->bss->num_mcast_sta); |
| } |
| |
| ieee80211_send_layer2_update(sta); |
| } |
| |
| err = sta_apply_parameters(local, sta, params); |
| if (err) { |
| mutex_unlock(&local->sta_mtx); |
| return err; |
| } |
| |
| if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && params->supported_rates) |
| rate_control_rate_init(sta); |
| |
| mutex_unlock(&local->sta_mtx); |
| |
| if (sdata->vif.type == NL80211_IFTYPE_STATION && |
| params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { |
| ieee80211_recalc_ps(local, -1); |
| ieee80211_recalc_ps_vif(sdata); |
| } |
| return 0; |
| } |
| |
| #ifdef CONFIG_MAC80211_MESH |
| static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev, |
| u8 *dst, u8 *next_hop) |
| { |
| struct ieee80211_sub_if_data *sdata; |
| struct mesh_path *mpath; |
| struct sta_info *sta; |
| int err; |
| |
| sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| |
| rcu_read_lock(); |
| sta = sta_info_get(sdata, next_hop); |
| if (!sta) { |
| rcu_read_unlock(); |
| return -ENOENT; |
| } |
| |
| err = mesh_path_add(dst, sdata); |
| if (err) { |
| rcu_read_unlock(); |
| return err; |
| } |
| |
| mpath = mesh_path_lookup(dst, sdata); |
| if (!mpath) { |
| rcu_read_unlock(); |
| return -ENXIO; |
| } |
| mesh_path_fix_nexthop(mpath, sta); |
| |
| rcu_read_unlock(); |
| return 0; |
| } |
| |
| static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev, |
| u8 *dst) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| |
| if (dst) |
| return mesh_path_del(dst, sdata); |
| |
| mesh_path_flush_by_iface(sdata); |
| return 0; |
| } |
| |
| static int ieee80211_change_mpath(struct wiphy *wiphy, |
| struct net_device *dev, |
| u8 *dst, u8 *next_hop) |
| { |
| struct ieee80211_sub_if_data *sdata; |
| struct mesh_path *mpath; |
| struct sta_info *sta; |
| |
| sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| |
| rcu_read_lock(); |
| |
| sta = sta_info_get(sdata, next_hop); |
| if (!sta) { |
| rcu_read_unlock(); |
| return -ENOENT; |
| } |
| |
| mpath = mesh_path_lookup(dst, sdata); |
| if (!mpath) { |
| rcu_read_unlock(); |
| return -ENOENT; |
| } |
| |
| mesh_path_fix_nexthop(mpath, sta); |
| |
| rcu_read_unlock(); |
| return 0; |
| } |
| |
| static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, |
| struct mpath_info *pinfo) |
| { |
| struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop); |
| |
| if (next_hop_sta) |
| memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN); |
| else |
| memset(next_hop, 0, ETH_ALEN); |
| |
| memset(pinfo, 0, sizeof(*pinfo)); |
| |
| pinfo->generation = mesh_paths_generation; |
| |
| pinfo->filled = MPATH_INFO_FRAME_QLEN | |
| MPATH_INFO_SN | |
| MPATH_INFO_METRIC | |
| MPATH_INFO_EXPTIME | |
| MPATH_INFO_DISCOVERY_TIMEOUT | |
| MPATH_INFO_DISCOVERY_RETRIES | |
| MPATH_INFO_FLAGS; |
| |
| pinfo->frame_qlen = mpath->frame_queue.qlen; |
| pinfo->sn = mpath->sn; |
| pinfo->metric = mpath->metric; |
| if (time_before(jiffies, mpath->exp_time)) |
| pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies); |
| pinfo->discovery_timeout = |
| jiffies_to_msecs(mpath->discovery_timeout); |
| pinfo->discovery_retries = mpath->discovery_retries; |
| if (mpath->flags & MESH_PATH_ACTIVE) |
| pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; |
| if (mpath->flags & MESH_PATH_RESOLVING) |
| pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; |
| if (mpath->flags & MESH_PATH_SN_VALID) |
| pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID; |
| if (mpath->flags & MESH_PATH_FIXED) |
| pinfo->flags |= NL80211_MPATH_FLAG_FIXED; |
| if (mpath->flags & MESH_PATH_RESOLVED) |
| pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED; |
| } |
| |
| static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev, |
| u8 *dst, u8 *next_hop, struct mpath_info *pinfo) |
| |
| { |
| struct ieee80211_sub_if_data *sdata; |
| struct mesh_path *mpath; |
| |
| sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| |
| rcu_read_lock(); |
| mpath = mesh_path_lookup(dst, sdata); |
| if (!mpath) { |
| rcu_read_unlock(); |
| return -ENOENT; |
| } |
| memcpy(dst, mpath->dst, ETH_ALEN); |
| mpath_set_pinfo(mpath, next_hop, pinfo); |
| rcu_read_unlock(); |
| return 0; |
| } |
| |
| static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev, |
| int idx, u8 *dst, u8 *next_hop, |
| struct mpath_info *pinfo) |
| { |
| struct ieee80211_sub_if_data *sdata; |
| struct mesh_path *mpath; |
| |
| sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| |
| rcu_read_lock(); |
| mpath = mesh_path_lookup_by_idx(idx, sdata); |
| if (!mpath) { |
| rcu_read_unlock(); |
| return -ENOENT; |
| } |
| memcpy(dst, mpath->dst, ETH_ALEN); |
| mpath_set_pinfo(mpath, next_hop, pinfo); |
| rcu_read_unlock(); |
| return 0; |
| } |
| |
| static int ieee80211_get_mesh_config(struct wiphy *wiphy, |
| struct net_device *dev, |
| struct mesh_config *conf) |
| { |
| struct ieee80211_sub_if_data *sdata; |
| sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| |
| memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config)); |
| return 0; |
| } |
| |
| static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask) |
| { |
| return (mask >> (parm-1)) & 0x1; |
| } |
| |
| static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh, |
| const struct mesh_setup *setup) |
| { |
| u8 *new_ie; |
| const u8 *old_ie; |
| struct ieee80211_sub_if_data *sdata = container_of(ifmsh, |
| struct ieee80211_sub_if_data, u.mesh); |
| |
| /* allocate information elements */ |
| new_ie = NULL; |
| old_ie = ifmsh->ie; |
| |
| if (setup->ie_len) { |
| new_ie = kmemdup(setup->ie, setup->ie_len, |
| GFP_KERNEL); |
| if (!new_ie) |
| return -ENOMEM; |
| } |
| ifmsh->ie_len = setup->ie_len; |
| ifmsh->ie = new_ie; |
| kfree(old_ie); |
| |
| /* now copy the rest of the setup parameters */ |
| ifmsh->mesh_id_len = setup->mesh_id_len; |
| memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len); |
| ifmsh->mesh_sp_id = setup->sync_method; |
| ifmsh->mesh_pp_id = setup->path_sel_proto; |
| ifmsh->mesh_pm_id = setup->path_metric; |
| ifmsh->security = IEEE80211_MESH_SEC_NONE; |
| if (setup->is_authenticated) |
| ifmsh->security |= IEEE80211_MESH_SEC_AUTHED; |
| if (setup->is_secure) |
| ifmsh->security |= IEEE80211_MESH_SEC_SECURED; |
| |
| /* mcast rate setting in Mesh Node */ |
| memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate, |
| sizeof(setup->mcast_rate)); |
| |
| return 0; |
| } |
| |
| static int ieee80211_update_mesh_config(struct wiphy *wiphy, |
| struct net_device *dev, u32 mask, |
| const struct mesh_config *nconf) |
| { |
| struct mesh_config *conf; |
| struct ieee80211_sub_if_data *sdata; |
| struct ieee80211_if_mesh *ifmsh; |
| |
| sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| ifmsh = &sdata->u.mesh; |
| |
| /* Set the config options which we are interested in setting */ |
| conf = &(sdata->u.mesh.mshcfg); |
| if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask)) |
| conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout; |
| if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask)) |
| conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout; |
| if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask)) |
| conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout; |
| if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask)) |
| conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks; |
| if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask)) |
| conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries; |
| if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask)) |
| conf->dot11MeshTTL = nconf->dot11MeshTTL; |
| if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask)) |
| conf->element_ttl = nconf->element_ttl; |
| if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) |
| conf->auto_open_plinks = nconf->auto_open_plinks; |
| if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask)) |
| conf->dot11MeshNbrOffsetMaxNeighbor = |
| nconf->dot11MeshNbrOffsetMaxNeighbor; |
| if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask)) |
| conf->dot11MeshHWMPmaxPREQretries = |
| nconf->dot11MeshHWMPmaxPREQretries; |
| if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask)) |
| conf->path_refresh_time = nconf->path_refresh_time; |
| if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask)) |
| conf->min_discovery_timeout = nconf->min_discovery_timeout; |
| if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask)) |
| conf->dot11MeshHWMPactivePathTimeout = |
| nconf->dot11MeshHWMPactivePathTimeout; |
| if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask)) |
| conf->dot11MeshHWMPpreqMinInterval = |
| nconf->dot11MeshHWMPpreqMinInterval; |
| if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask)) |
| conf->dot11MeshHWMPperrMinInterval = |
| nconf->dot11MeshHWMPperrMinInterval; |
| if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, |
| mask)) |
| conf->dot11MeshHWMPnetDiameterTraversalTime = |
| nconf->dot11MeshHWMPnetDiameterTraversalTime; |
| if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) { |
| conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode; |
| ieee80211_mesh_root_setup(ifmsh); |
| } |
| if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) { |
| /* our current gate announcement implementation rides on root |
| * announcements, so require this ifmsh to also be a root node |
| * */ |
| if (nconf->dot11MeshGateAnnouncementProtocol && |
| !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) { |
| conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN; |
| ieee80211_mesh_root_setup(ifmsh); |
| } |
| conf->dot11MeshGateAnnouncementProtocol = |
| nconf->dot11MeshGateAnnouncementProtocol; |
| } |
| if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) |
| conf->dot11MeshHWMPRannInterval = |
| nconf->dot11MeshHWMPRannInterval; |
| if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask)) |
| conf->dot11MeshForwarding = nconf->dot11MeshForwarding; |
| if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) { |
| /* our RSSI threshold implementation is supported only for |
| * devices that report signal in dBm. |
| */ |
| if (!(sdata->local->hw.flags & IEEE80211_HW_SIGNAL_DBM)) |
| return -ENOTSUPP; |
| conf->rssi_threshold = nconf->rssi_threshold; |
| } |
| if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) { |
| conf->ht_opmode = nconf->ht_opmode; |
| sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode; |
| ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT); |
| } |
| if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask)) |
| conf->dot11MeshHWMPactivePathToRootTimeout = |
| nconf->dot11MeshHWMPactivePathToRootTimeout; |
| if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask)) |
| conf->dot11MeshHWMProotInterval = |
| nconf->dot11MeshHWMProotInterval; |
| if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask)) |
| conf->dot11MeshHWMPconfirmationInterval = |
| nconf->dot11MeshHWMPconfirmationInterval; |
| return 0; |
| } |
| |
| static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, |
| const struct mesh_config *conf, |
| const struct mesh_setup *setup) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; |
| int err; |
| |
| memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config)); |
| err = copy_mesh_setup(ifmsh, setup); |
| if (err) |
| return err; |
| |
| /* can mesh use other SMPS modes? */ |
| sdata->smps_mode = IEEE80211_SMPS_OFF; |
| sdata->needed_rx_chains = sdata->local->rx_chains; |
| |
| err = ieee80211_vif_use_channel(sdata, &setup->chandef, |
| IEEE80211_CHANCTX_SHARED); |
| if (err) |
| return err; |
| |
| ieee80211_start_mesh(sdata); |
| |
| return 0; |
| } |
| |
| static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| |
| ieee80211_stop_mesh(sdata); |
| ieee80211_vif_release_channel(sdata); |
| |
| return 0; |
| } |
| #endif |
| |
| static int ieee80211_change_bss(struct wiphy *wiphy, |
| struct net_device *dev, |
| struct bss_parameters *params) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| enum ieee80211_band band; |
| u32 changed = 0; |
| |
| if (!rtnl_dereference(sdata->u.ap.beacon)) |
| return -ENOENT; |
| |
| band = ieee80211_get_sdata_band(sdata); |
| |
| if (params->use_cts_prot >= 0) { |
| sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot; |
| changed |= BSS_CHANGED_ERP_CTS_PROT; |
| } |
| if (params->use_short_preamble >= 0) { |
| sdata->vif.bss_conf.use_short_preamble = |
| params->use_short_preamble; |
| changed |= BSS_CHANGED_ERP_PREAMBLE; |
| } |
| |
| if (!sdata->vif.bss_conf.use_short_slot && |
| band == IEEE80211_BAND_5GHZ) { |
| sdata->vif.bss_conf.use_short_slot = true; |
| changed |= BSS_CHANGED_ERP_SLOT; |
| } |
| |
| if (params->use_short_slot_time >= 0) { |
| sdata->vif.bss_conf.use_short_slot = |
| params->use_short_slot_time; |
| changed |= BSS_CHANGED_ERP_SLOT; |
| } |
| |
| if (params->basic_rates) { |
| int i, j; |
| u32 rates = 0; |
| struct ieee80211_supported_band *sband = wiphy->bands[band]; |
| |
| for (i = 0; i < params->basic_rates_len; i++) { |
| int rate = (params->basic_rates[i] & 0x7f) * 5; |
| for (j = 0; j < sband->n_bitrates; j++) { |
| if (sband->bitrates[j].bitrate == rate) |
| rates |= BIT(j); |
| } |
| } |
| sdata->vif.bss_conf.basic_rates = rates; |
| changed |= BSS_CHANGED_BASIC_RATES; |
| } |
| |
| if (params->ap_isolate >= 0) { |
| if (params->ap_isolate) |
| sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS; |
| else |
| sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS; |
| } |
| |
| if (params->ht_opmode >= 0) { |
| sdata->vif.bss_conf.ht_operation_mode = |
| (u16) params->ht_opmode; |
| changed |= BSS_CHANGED_HT; |
| } |
| |
| if (params->p2p_ctwindow >= 0) { |
| sdata->vif.bss_conf.p2p_ctwindow = params->p2p_ctwindow; |
| changed |= BSS_CHANGED_P2P_PS; |
| } |
| |
| if (params->p2p_opp_ps >= 0) { |
| sdata->vif.bss_conf.p2p_oppps = params->p2p_opp_ps; |
| changed |= BSS_CHANGED_P2P_PS; |
| } |
| |
| ieee80211_bss_info_change_notify(sdata, changed); |
| |
| return 0; |
| } |
| |
| static int ieee80211_set_txq_params(struct wiphy *wiphy, |
| struct net_device *dev, |
| struct ieee80211_txq_params *params) |
| { |
| struct ieee80211_local *local = wiphy_priv(wiphy); |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| struct ieee80211_tx_queue_params p; |
| |
| if (!local->ops->conf_tx) |
| return -EOPNOTSUPP; |
| |
| if (local->hw.queues < IEEE80211_NUM_ACS) |
| return -EOPNOTSUPP; |
| |
| memset(&p, 0, sizeof(p)); |
| p.aifs = params->aifs; |
| p.cw_max = params->cwmax; |
| p.cw_min = params->cwmin; |
| p.txop = params->txop; |
| |
| /* |
| * Setting tx queue params disables u-apsd because it's only |
| * called in master mode. |
| */ |
| p.uapsd = false; |
| |
| sdata->tx_conf[params->ac] = p; |
| if (drv_conf_tx(local, sdata, params->ac, &p)) { |
| wiphy_debug(local->hw.wiphy, |
| "failed to set TX queue parameters for AC %d\n", |
| params->ac); |
| return -EINVAL; |
| } |
| |
| ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS); |
| |
| return 0; |
| } |
| |
| #ifdef CONFIG_PM |
| static int ieee80211_suspend(struct wiphy *wiphy, |
| struct cfg80211_wowlan *wowlan) |
| { |
| return __ieee80211_suspend(wiphy_priv(wiphy), wowlan); |
| } |
| |
| static int ieee80211_resume(struct wiphy *wiphy) |
| { |
| return __ieee80211_resume(wiphy_priv(wiphy)); |
| } |
| #else |
| #define ieee80211_suspend NULL |
| #define ieee80211_resume NULL |
| #endif |
| |
| static int ieee80211_scan(struct wiphy *wiphy, |
| struct cfg80211_scan_request *req) |
| { |
| struct ieee80211_sub_if_data *sdata; |
| |
| sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev); |
| |
| switch (ieee80211_vif_type_p2p(&sdata->vif)) { |
| case NL80211_IFTYPE_STATION: |
| case NL80211_IFTYPE_ADHOC: |
| case NL80211_IFTYPE_MESH_POINT: |
| case NL80211_IFTYPE_P2P_CLIENT: |
| case NL80211_IFTYPE_P2P_DEVICE: |
| break; |
| case NL80211_IFTYPE_P2P_GO: |
| if (sdata->local->ops->hw_scan) |
| break; |
| /* |
| * FIXME: implement NoA while scanning in software, |
| * for now fall through to allow scanning only when |
| * beaconing hasn't been configured yet |
| */ |
| case NL80211_IFTYPE_AP: |
| /* |
| * If the scan has been forced (and the driver supports |
| * forcing), don't care about being beaconing already. |
| * This will create problems to the attached stations (e.g. all |
| * the frames sent while scanning on other channel will be |
| * lost) |
| */ |
| if (sdata->u.ap.beacon && |
| (!(wiphy->features & NL80211_FEATURE_AP_SCAN) || |
| !(req->flags & NL80211_SCAN_FLAG_AP))) |
| return -EOPNOTSUPP; |
| break; |
| default: |
| return -EOPNOTSUPP; |
| } |
| |
| return ieee80211_request_scan(sdata, req); |
| } |
| |
| static int |
| ieee80211_sched_scan_start(struct wiphy *wiphy, |
| struct net_device *dev, |
| struct cfg80211_sched_scan_request *req) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| |
| if (!sdata->local->ops->sched_scan_start) |
| return -EOPNOTSUPP; |
| |
| return ieee80211_request_sched_scan_start(sdata, req); |
| } |
| |
| static int |
| ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| |
| if (!sdata->local->ops->sched_scan_stop) |
| return -EOPNOTSUPP; |
| |
| return ieee80211_request_sched_scan_stop(sdata); |
| } |
| |
| static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, |
| struct cfg80211_auth_request *req) |
| { |
| return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req); |
| } |
| |
| static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, |
| struct cfg80211_assoc_request *req) |
| { |
| return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req); |
| } |
| |
| static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev, |
| struct cfg80211_deauth_request *req) |
| { |
| return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req); |
| } |
| |
| static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, |
| struct cfg80211_disassoc_request *req) |
| { |
| return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req); |
| } |
| |
| static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, |
| struct cfg80211_ibss_params *params) |
| { |
| return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params); |
| } |
| |
| static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) |
| { |
| return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev)); |
| } |
| |
| static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev, |
| int rate[IEEE80211_NUM_BANDS]) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| |
| memcpy(sdata->vif.bss_conf.mcast_rate, rate, sizeof(rate)); |
| |
| return 0; |
| } |
| |
| static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) |
| { |
| struct ieee80211_local *local = wiphy_priv(wiphy); |
| int err; |
| |
| if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { |
| err = drv_set_frag_threshold(local, wiphy->frag_threshold); |
| |
| if (err) |
| return err; |
| } |
| |
| if (changed & WIPHY_PARAM_COVERAGE_CLASS) { |
| err = drv_set_coverage_class(local, wiphy->coverage_class); |
| |
| if (err) |
| return err; |
| } |
| |
| if (changed & WIPHY_PARAM_RTS_THRESHOLD) { |
| err = drv_set_rts_threshold(local, wiphy->rts_threshold); |
| |
| if (err) |
| return err; |
| } |
| |
| if (changed & WIPHY_PARAM_RETRY_SHORT) { |
| if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY) |
| return -EINVAL; |
| local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; |
| } |
| if (changed & WIPHY_PARAM_RETRY_LONG) { |
| if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY) |
| return -EINVAL; |
| local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; |
| } |
| if (changed & |
| (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG)) |
| ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS); |
| |
| return 0; |
| } |
| |
| static int ieee80211_set_tx_power(struct wiphy *wiphy, |
| struct wireless_dev *wdev, |
| enum nl80211_tx_power_setting type, int mbm) |
| { |
| struct ieee80211_local *local = wiphy_priv(wiphy); |
| struct ieee80211_sub_if_data *sdata; |
| |
| if (wdev) { |
| sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); |
| |
| switch (type) { |
| case NL80211_TX_POWER_AUTOMATIC: |
| sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL; |
| break; |
| case NL80211_TX_POWER_LIMITED: |
| case NL80211_TX_POWER_FIXED: |
| if (mbm < 0 || (mbm % 100)) |
| return -EOPNOTSUPP; |
| sdata->user_power_level = MBM_TO_DBM(mbm); |
| break; |
| } |
| |
| ieee80211_recalc_txpower(sdata); |
| |
| return 0; |
| } |
| |
| switch (type) { |
| case NL80211_TX_POWER_AUTOMATIC: |
| local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; |
| break; |
| case NL80211_TX_POWER_LIMITED: |
| case NL80211_TX_POWER_FIXED: |
| if (mbm < 0 || (mbm % 100)) |
| return -EOPNOTSUPP; |
| local->user_power_level = MBM_TO_DBM(mbm); |
| break; |
| } |
| |
| mutex_lock(&local->iflist_mtx); |
| list_for_each_entry(sdata, &local->interfaces, list) |
| sdata->user_power_level = local->user_power_level; |
| list_for_each_entry(sdata, &local->interfaces, list) |
| ieee80211_recalc_txpower(sdata); |
| mutex_unlock(&local->iflist_mtx); |
| |
| return 0; |
| } |
| |
| static int ieee80211_get_tx_power(struct wiphy *wiphy, |
| struct wireless_dev *wdev, |
| int *dbm) |
| { |
| struct ieee80211_local *local = wiphy_priv(wiphy); |
| struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); |
| |
| if (!local->use_chanctx) |
| *dbm = local->hw.conf.power_level; |
| else |
| *dbm = sdata->vif.bss_conf.txpower; |
| |
| return 0; |
| } |
| |
| static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev, |
| const u8 *addr) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| |
| memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN); |
| |
| return 0; |
| } |
| |
| static void ieee80211_rfkill_poll(struct wiphy *wiphy) |
| { |
| struct ieee80211_local *local = wiphy_priv(wiphy); |
| |
| drv_rfkill_poll(local); |
| } |
| |
| #ifdef CONFIG_NL80211_TESTMODE |
| static int ieee80211_testmode_cmd(struct wiphy *wiphy, void *data, int len) |
| { |
| struct ieee80211_local *local = wiphy_priv(wiphy); |
| |
| if (!local->ops->testmode_cmd) |
| return -EOPNOTSUPP; |
| |
| return local->ops->testmode_cmd(&local->hw, data, len); |
| } |
| |
| static int ieee80211_testmode_dump(struct wiphy *wiphy, |
| struct sk_buff *skb, |
| struct netlink_callback *cb, |
| void *data, int len) |
| { |
| struct ieee80211_local *local = wiphy_priv(wiphy); |
| |
| if (!local->ops->testmode_dump) |
| return -EOPNOTSUPP; |
| |
| return local->ops->testmode_dump(&local->hw, skb, cb, data, len); |
| } |
| #endif |
| |
| int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata, |
| enum ieee80211_smps_mode smps_mode) |
| { |
| const u8 *ap; |
| enum ieee80211_smps_mode old_req; |
| int err; |
| |
| lockdep_assert_held(&sdata->u.mgd.mtx); |
| |
| old_req = sdata->u.mgd.req_smps; |
| sdata->u.mgd.req_smps = smps_mode; |
| |
| if (old_req == smps_mode && |
| smps_mode != IEEE80211_SMPS_AUTOMATIC) |
| return 0; |
| |
| /* |
| * If not associated, or current association is not an HT |
| * association, there's no need to do anything, just store |
| * the new value until we associate. |
| */ |
| if (!sdata->u.mgd.associated || |
| sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) |
| return 0; |
| |
| ap = sdata->u.mgd.associated->bssid; |
| |
| if (smps_mode == IEEE80211_SMPS_AUTOMATIC) { |
| if (sdata->u.mgd.powersave) |
| smps_mode = IEEE80211_SMPS_DYNAMIC; |
| else |
| smps_mode = IEEE80211_SMPS_OFF; |
| } |
| |
| /* send SM PS frame to AP */ |
| err = ieee80211_send_smps_action(sdata, smps_mode, |
| ap, ap); |
| if (err) |
| sdata->u.mgd.req_smps = old_req; |
| |
| return err; |
| } |
| |
| static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, |
| bool enabled, int timeout) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); |
| |
| if (sdata->vif.type != NL80211_IFTYPE_STATION) |
| return -EOPNOTSUPP; |
| |
| if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS)) |
| return -EOPNOTSUPP; |
| |
| if (enabled == sdata->u.mgd.powersave && |
| timeout == local->dynamic_ps_forced_timeout) |
| return 0; |
| |
| sdata->u.mgd.powersave = enabled; |
| local->dynamic_ps_forced_timeout = timeout; |
| |
| /* no change, but if automatic follow powersave */ |
| mutex_lock(&sdata->u.mgd.mtx); |
| __ieee80211_request_smps(sdata, sdata->u.mgd.req_smps); |
| mutex_unlock(&sdata->u.mgd.mtx); |
| |
| if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS) |
| ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); |
| |
| ieee80211_recalc_ps(local, -1); |
| ieee80211_recalc_ps_vif(sdata); |
| |
| return 0; |
| } |
| |
| static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy, |
| struct net_device *dev, |
| s32 rssi_thold, u32 rssi_hyst) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| struct ieee80211_vif *vif = &sdata->vif; |
| struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; |
| |
| if (rssi_thold == bss_conf->cqm_rssi_thold && |
| rssi_hyst == bss_conf->cqm_rssi_hyst) |
| return 0; |
| |
| bss_conf->cqm_rssi_thold = rssi_thold; |
| bss_conf->cqm_rssi_hyst = rssi_hyst; |
| |
| /* tell the driver upon association, unless already associated */ |
| if (sdata->u.mgd.associated && |
| sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) |
| ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); |
| |
| return 0; |
| } |
| |
| static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, |
| struct net_device *dev, |
| const u8 *addr, |
| const struct cfg80211_bitrate_mask *mask) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); |
| int i, ret; |
| |
| if (!ieee80211_sdata_running(sdata)) |
| return -ENETDOWN; |
| |
| if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) { |
| ret = drv_set_bitrate_mask(local, sdata, mask); |
| if (ret) |
| return ret; |
| } |
| |
| for (i = 0; i < IEEE80211_NUM_BANDS; i++) { |
| sdata->rc_rateidx_mask[i] = mask->control[i].legacy; |
| memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].mcs, |
| sizeof(mask->control[i].mcs)); |
| } |
| |
| return 0; |
| } |
| |
| static int ieee80211_start_roc_work(struct ieee80211_local *local, |
| struct ieee80211_sub_if_data *sdata, |
| struct ieee80211_channel *channel, |
| unsigned int duration, u64 *cookie, |
| struct sk_buff *txskb) |
| { |
| struct ieee80211_roc_work *roc, *tmp; |
| bool queued = false; |
| int ret; |
| |
| lockdep_assert_held(&local->mtx); |
| |
| if (local->use_chanctx && !local->ops->remain_on_channel) |
| return -EOPNOTSUPP; |
| |
| roc = kzalloc(sizeof(*roc), GFP_KERNEL); |
| if (!roc) |
| return -ENOMEM; |
| |
| roc->chan = channel; |
| roc->duration = duration; |
| roc->req_duration = duration; |
| roc->frame = txskb; |
| roc->mgmt_tx_cookie = (unsigned long)txskb; |
| roc->sdata = sdata; |
| INIT_DELAYED_WORK(&roc->work, ieee80211_sw_roc_work); |
| INIT_LIST_HEAD(&roc->dependents); |
| |
| /* if there's one pending or we're scanning, queue this one */ |
| if (!list_empty(&local->roc_list) || local->scanning) |
| goto out_check_combine; |
| |
| /* if not HW assist, just queue & schedule work */ |
| if (!local->ops->remain_on_channel) { |
| ieee80211_queue_delayed_work(&local->hw, &roc->work, 0); |
| goto out_queue; |
| } |
| |
| /* otherwise actually kick it off here (for error handling) */ |
| |
| /* |
| * If the duration is zero, then the driver |
| * wouldn't actually do anything. Set it to |
| * 10 for now. |
| * |
| * TODO: cancel the off-channel operation |
| * when we get the SKB's TX status and |
| * the wait time was zero before. |
| */ |
| if (!duration) |
| duration = 10; |
| |
| ret = drv_remain_on_channel(local, sdata, channel, duration); |
| if (ret) { |
| kfree(roc); |
| return ret; |
| } |
| |
| roc->started = true; |
| goto out_queue; |
| |
| out_check_combine: |
| list_for_each_entry(tmp, &local->roc_list, list) { |
| if (tmp->chan != channel || tmp->sdata != sdata) |
| continue; |
| |
| /* |
| * Extend this ROC if possible: |
| * |
| * If it hasn't started yet, just increase the duration |
| * and add the new one to the list of dependents. |
| */ |
| if (!tmp->started) { |
| list_add_tail(&roc->list, &tmp->dependents); |
| tmp->duration = max(tmp->duration, roc->duration); |
| queued = true; |
| break; |
| } |
| |
| /* If it has already started, it's more difficult ... */ |
| if (local->ops->remain_on_channel) { |
| unsigned long j = jiffies; |
| |
| /* |
| * In the offloaded ROC case, if it hasn't begun, add |
| * this new one to the dependent list to be handled |
| * when the the master one begins. If it has begun, |
| * check that there's still a minimum time left and |
| * if so, start this one, transmitting the frame, but |
| * add it to the list directly after this one with a |
| * a reduced time so we'll ask the driver to execute |
| * it right after finishing the previous one, in the |
| * hope that it'll also be executed right afterwards, |
| * effectively extending the old one. |
| * If there's no minimum time left, just add it to the |
| * normal list. |
| */ |
| if (!tmp->hw_begun) { |
| list_add_tail(&roc->list, &tmp->dependents); |
| queued = true; |
| break; |
| } |
| |
| if (time_before(j + IEEE80211_ROC_MIN_LEFT, |
| tmp->hw_start_time + |
| msecs_to_jiffies(tmp->duration))) { |
| int new_dur; |
| |
| ieee80211_handle_roc_started(roc); |
| |
| new_dur = roc->duration - |
| jiffies_to_msecs(tmp->hw_start_time + |
| msecs_to_jiffies( |
| tmp->duration) - |
| j); |
| |
| if (new_dur > 0) { |
| /* add right after tmp */ |
| list_add(&roc->list, &tmp->list); |
| } else { |
| list_add_tail(&roc->list, |
| &tmp->dependents); |
| } |
| queued = true; |
| } |
| } else if (del_timer_sync(&tmp->work.timer)) { |
| unsigned long new_end; |
| |
| /* |
| * In the software ROC case, cancel the timer, if |
| * that fails then the finish work is already |
| * queued/pending and thus we queue the new ROC |
| * normally, if that succeeds then we can extend |
| * the timer duration and TX the frame (if any.) |
| */ |
| |
| list_add_tail(&roc->list, &tmp->dependents); |
| queued = true; |
| |
| new_end = jiffies + msecs_to_jiffies(roc->duration); |
| |
| /* ok, it was started & we canceled timer */ |
| if (time_after(new_end, tmp->work.timer.expires)) |
| mod_timer(&tmp->work.timer, new_end); |
| else |
| add_timer(&tmp->work.timer); |
| |
| ieee80211_handle_roc_started(roc); |
| } |
| break; |
| } |
| |
| out_queue: |
| if (!queued) |
| list_add_tail(&roc->list, &local->roc_list); |
| |
| /* |
| * cookie is either the roc cookie (for normal roc) |
| * or the SKB (for mgmt TX) |
| */ |
| if (!txskb) { |
| /* local->mtx protects this */ |
| local->roc_cookie_counter++; |
| roc->cookie = local->roc_cookie_counter; |
| /* wow, you wrapped 64 bits ... more likely a bug */ |
| if (WARN_ON(roc->cookie == 0)) { |
| roc->cookie = 1; |
| local->roc_cookie_counter++; |
| } |
| *cookie = roc->cookie; |
| } else { |
| *cookie = (unsigned long)txskb; |
| } |
| |
| return 0; |
| } |
| |
| static int ieee80211_remain_on_channel(struct wiphy *wiphy, |
| struct wireless_dev *wdev, |
| struct ieee80211_channel *chan, |
| unsigned int duration, |
| u64 *cookie) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); |
| struct ieee80211_local *local = sdata->local; |
| int ret; |
| |
| mutex_lock(&local->mtx); |
| ret = ieee80211_start_roc_work(local, sdata, chan, |
| duration, cookie, NULL); |
| mutex_unlock(&local->mtx); |
| |
| return ret; |
| } |
| |
| static int ieee80211_cancel_roc(struct ieee80211_local *local, |
| u64 cookie, bool mgmt_tx) |
| { |
| struct ieee80211_roc_work *roc, *tmp, *found = NULL; |
| int ret; |
| |
| mutex_lock(&local->mtx); |
| list_for_each_entry_safe(roc, tmp, &local->roc_list, list) { |
| struct ieee80211_roc_work *dep, *tmp2; |
| |
| list_for_each_entry_safe(dep, tmp2, &roc->dependents, list) { |
| if (!mgmt_tx && dep->cookie != cookie) |
| continue; |
| else if (mgmt_tx && dep->mgmt_tx_cookie != cookie) |
| continue; |
| /* found dependent item -- just remove it */ |
| list_del(&dep->list); |
| mutex_unlock(&local->mtx); |
| |
| ieee80211_roc_notify_destroy(dep); |
| return 0; |
| } |
| |
| if (!mgmt_tx && roc->cookie != cookie) |
| continue; |
| else if (mgmt_tx && roc->mgmt_tx_cookie != cookie) |
| continue; |
| |
| found = roc; |
| break; |
| } |
| |
| if (!found) { |
| mutex_unlock(&local->mtx); |
| return -ENOENT; |
| } |
| |
| /* |
| * We found the item to cancel, so do that. Note that it |
| * may have dependents, which we also cancel (and send |
| * the expired signal for.) Not doing so would be quite |
| * tricky here, but we may need to fix it later. |
| */ |
| |
| if (local->ops->remain_on_channel) { |
| if (found->started) { |
| ret = drv_cancel_remain_on_channel(local); |
| if (WARN_ON_ONCE(ret)) { |
| mutex_unlock(&local->mtx); |
| return ret; |
| } |
| } |
| |
| list_del(&found->list); |
| |
| if (found->started) |
| ieee80211_start_next_roc(local); |
| mutex_unlock(&local->mtx); |
| |
| ieee80211_roc_notify_destroy(found); |
| } else { |
| /* work may be pending so use it all the time */ |
| found->abort = true; |
| ieee80211_queue_delayed_work(&local->hw, &found->work, 0); |
| |
| mutex_unlock(&local->mtx); |
| |
| /* work will clean up etc */ |
| flush_delayed_work(&found->work); |
| } |
| |
| return 0; |
| } |
| |
| static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy, |
| struct wireless_dev *wdev, |
| u64 cookie) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); |
| struct ieee80211_local *local = sdata->local; |
| |
| return ieee80211_cancel_roc(local, cookie, false); |
| } |
| |
| static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, |
| struct ieee80211_channel *chan, bool offchan, |
| unsigned int wait, const u8 *buf, size_t len, |
| bool no_cck, bool dont_wait_for_ack, u64 *cookie) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); |
| struct ieee80211_local *local = sdata->local; |
| struct sk_buff *skb; |
| struct sta_info *sta; |
| const struct ieee80211_mgmt *mgmt = (void *)buf; |
| bool need_offchan = false; |
| u32 flags; |
| int ret; |
| |
| if (dont_wait_for_ack) |
| flags = IEEE80211_TX_CTL_NO_ACK; |
| else |
| flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX | |
| IEEE80211_TX_CTL_REQ_TX_STATUS; |
| |
| if (no_cck) |
| flags |= IEEE80211_TX_CTL_NO_CCK_RATE; |
| |
| switch (sdata->vif.type) { |
| case NL80211_IFTYPE_ADHOC: |
| if (!sdata->vif.bss_conf.ibss_joined) |
| need_offchan = true; |
| /* fall through */ |
| #ifdef CONFIG_MAC80211_MESH |
| case NL80211_IFTYPE_MESH_POINT: |
| if (ieee80211_vif_is_mesh(&sdata->vif) && |
| !sdata->u.mesh.mesh_id_len) |
| need_offchan = true; |
| /* fall through */ |
| #endif |
| case NL80211_IFTYPE_AP: |
| case NL80211_IFTYPE_AP_VLAN: |
| case NL80211_IFTYPE_P2P_GO: |
| if (sdata->vif.type != NL80211_IFTYPE_ADHOC && |
| !ieee80211_vif_is_mesh(&sdata->vif) && |
| !rcu_access_pointer(sdata->bss->beacon)) |
| need_offchan = true; |
| if (!ieee80211_is_action(mgmt->frame_control) || |
| mgmt->u.action.category == WLAN_CATEGORY_PUBLIC) |
| break; |
| rcu_read_lock(); |
| sta = sta_info_get(sdata, mgmt->da); |
| rcu_read_unlock(); |
| if (!sta) |
| return -ENOLINK; |
| break; |
| case NL80211_IFTYPE_STATION: |
| case NL80211_IFTYPE_P2P_CLIENT: |
| if (!sdata->u.mgd.associated) |
| need_offchan = true; |
| break; |
| case NL80211_IFTYPE_P2P_DEVICE: |
| need_offchan = true; |
| break; |
| default: |
| return -EOPNOTSUPP; |
| } |
| |
| mutex_lock(&local->mtx); |
| |
| /* Check if the operating channel is the requested channel */ |
| if (!need_offchan) { |
| struct ieee80211_chanctx_conf *chanctx_conf; |
| |
| rcu_read_lock(); |
| chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); |
| |
| if (chanctx_conf) |
| need_offchan = chan != chanctx_conf->def.chan; |
| else |
| need_offchan = true; |
| rcu_read_unlock(); |
| } |
| |
| if (need_offchan && !offchan) { |
| ret = -EBUSY; |
| goto out_unlock; |
| } |
| |
| skb = dev_alloc_skb(local->hw.extra_tx_headroom + len); |
| if (!skb) { |
| ret = -ENOMEM; |
| goto out_unlock; |
| } |
| skb_reserve(skb, local->hw.extra_tx_headroom); |
| |
| memcpy(skb_put(skb, len), buf, len); |
| |
| IEEE80211_SKB_CB(skb)->flags = flags; |
| |
| skb->dev = sdata->dev; |
| |
| if (!need_offchan) { |
| *cookie = (unsigned long) skb; |
| ieee80211_tx_skb(sdata, skb); |
| ret = 0; |
| goto out_unlock; |
| } |
| |
| IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN; |
| if (local->hw.flags & IEEE80211_HW_QUEUE_CONTROL) |
| IEEE80211_SKB_CB(skb)->hw_queue = |
| local->hw.offchannel_tx_hw_queue; |
| |
| /* This will handle all kinds of coalescing and immediate TX */ |
| ret = ieee80211_start_roc_work(local, sdata, chan, |
| wait, cookie, skb); |
| if (ret) |
| kfree_skb(skb); |
| out_unlock: |
| mutex_unlock(&local->mtx); |
| return ret; |
| } |
| |
| static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy, |
| struct wireless_dev *wdev, |
| u64 cookie) |
| { |
| struct ieee80211_local *local = wiphy_priv(wiphy); |
| |
| return ieee80211_cancel_roc(local, cookie, true); |
| } |
| |
| static void ieee80211_mgmt_frame_register(struct wiphy *wiphy, |
| struct wireless_dev *wdev, |
| u16 frame_type, bool reg) |
| { |
| struct ieee80211_local *local = wiphy_priv(wiphy); |
| struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); |
| |
| switch (frame_type) { |
| case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH: |
| if (sdata->vif.type == NL80211_IFTYPE_ADHOC) { |
| struct ieee80211_if_ibss *ifibss = &sdata->u.ibss; |
| |
| if (reg) |
| ifibss->auth_frame_registrations++; |
| else |
| ifibss->auth_frame_registrations--; |
| } |
| break; |
| case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ: |
| if (reg) |
| local->probe_req_reg++; |
| else |
| local->probe_req_reg--; |
| |
| if (!local->open_count) |
| break; |
| |
| ieee80211_queue_work(&local->hw, &local->reconfig_filter); |
| break; |
| default: |
| break; |
| } |
| } |
| |
| static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) |
| { |
| struct ieee80211_local *local = wiphy_priv(wiphy); |
| |
| if (local->started) |
| return -EOPNOTSUPP; |
| |
| return drv_set_antenna(local, tx_ant, rx_ant); |
| } |
| |
| static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) |
| { |
| struct ieee80211_local *local = wiphy_priv(wiphy); |
| |
| return drv_get_antenna(local, tx_ant, rx_ant); |
| } |
| |
| static int ieee80211_set_ringparam(struct wiphy *wiphy, u32 tx, u32 rx) |
| { |
| struct ieee80211_local *local = wiphy_priv(wiphy); |
| |
| return drv_set_ringparam(local, tx, rx); |
| } |
| |
| static void ieee80211_get_ringparam(struct wiphy *wiphy, |
| u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max) |
| { |
| struct ieee80211_local *local = wiphy_priv(wiphy); |
| |
| drv_get_ringparam(local, tx, tx_max, rx, rx_max); |
| } |
| |
| static int ieee80211_set_rekey_data(struct wiphy *wiphy, |
| struct net_device *dev, |
| struct cfg80211_gtk_rekey_data *data) |
| { |
| struct ieee80211_local *local = wiphy_priv(wiphy); |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| |
| if (!local->ops->set_rekey_data) |
| return -EOPNOTSUPP; |
| |
| drv_set_rekey_data(local, sdata, data); |
| |
| return 0; |
| } |
| |
| static void ieee80211_tdls_add_ext_capab(struct sk_buff *skb) |
| { |
| u8 *pos = (void *)skb_put(skb, 7); |
| |
| *pos++ = WLAN_EID_EXT_CAPABILITY; |
| *pos++ = 5; /* len */ |
| *pos++ = 0x0; |
| *pos++ = 0x0; |
| *pos++ = 0x0; |
| *pos++ = 0x0; |
| *pos++ = WLAN_EXT_CAPA5_TDLS_ENABLED; |
| } |
| |
| static u16 ieee80211_get_tdls_sta_capab(struct ieee80211_sub_if_data *sdata) |
| { |
| struct ieee80211_local *local = sdata->local; |
| u16 capab; |
| |
| capab = 0; |
| if (ieee80211_get_sdata_band(sdata) != IEEE80211_BAND_2GHZ) |
| return capab; |
| |
| if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE)) |
| capab |= WLAN_CAPABILITY_SHORT_SLOT_TIME; |
| if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE)) |
| capab |= WLAN_CAPABILITY_SHORT_PREAMBLE; |
| |
| return capab; |
| } |
| |
| static void ieee80211_tdls_add_link_ie(struct sk_buff *skb, u8 *src_addr, |
| u8 *peer, u8 *bssid) |
| { |
| struct ieee80211_tdls_lnkie *lnkid; |
| |
| lnkid = (void *)skb_put(skb, sizeof(struct ieee80211_tdls_lnkie)); |
| |
| lnkid->ie_type = WLAN_EID_LINK_ID; |
| lnkid->ie_len = sizeof(struct ieee80211_tdls_lnkie) - 2; |
| |
| memcpy(lnkid->bssid, bssid, ETH_ALEN); |
| memcpy(lnkid->init_sta, src_addr, ETH_ALEN); |
| memcpy(lnkid->resp_sta, peer, ETH_ALEN); |
| } |
| |
| static int |
| ieee80211_prep_tdls_encap_data(struct wiphy *wiphy, struct net_device *dev, |
| u8 *peer, u8 action_code, u8 dialog_token, |
| u16 status_code, struct sk_buff *skb) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| enum ieee80211_band band = ieee80211_get_sdata_band(sdata); |
| struct ieee80211_tdls_data *tf; |
| |
| tf = (void *)skb_put(skb, offsetof(struct ieee80211_tdls_data, u)); |
| |
| memcpy(tf->da, peer, ETH_ALEN); |
| memcpy(tf->sa, sdata->vif.addr, ETH_ALEN); |
| tf->ether_type = cpu_to_be16(ETH_P_TDLS); |
| tf->payload_type = WLAN_TDLS_SNAP_RFTYPE; |
| |
| switch (action_code) { |
| case WLAN_TDLS_SETUP_REQUEST: |
| tf->category = WLAN_CATEGORY_TDLS; |
| tf->action_code = WLAN_TDLS_SETUP_REQUEST; |
| |
| skb_put(skb, sizeof(tf->u.setup_req)); |
| tf->u.setup_req.dialog_token = dialog_token; |
| tf->u.setup_req.capability = |
| cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata)); |
| |
| ieee80211_add_srates_ie(sdata, skb, false, band); |
| ieee80211_add_ext_srates_ie(sdata, skb, false, band); |
| ieee80211_tdls_add_ext_capab(skb); |
| break; |
| case WLAN_TDLS_SETUP_RESPONSE: |
| tf->category = WLAN_CATEGORY_TDLS; |
| tf->action_code = WLAN_TDLS_SETUP_RESPONSE; |
| |
| skb_put(skb, sizeof(tf->u.setup_resp)); |
| tf->u.setup_resp.status_code = cpu_to_le16(status_code); |
| tf->u.setup_resp.dialog_token = dialog_token; |
| tf->u.setup_resp.capability = |
| cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata)); |
| |
| ieee80211_add_srates_ie(sdata, skb, false, band); |
| ieee80211_add_ext_srates_ie(sdata, skb, false, band); |
| ieee80211_tdls_add_ext_capab(skb); |
| break; |
| case WLAN_TDLS_SETUP_CONFIRM: |
| tf->category = WLAN_CATEGORY_TDLS; |
| tf->action_code = WLAN_TDLS_SETUP_CONFIRM; |
| |
| skb_put(skb, sizeof(tf->u.setup_cfm)); |
| tf->u.setup_cfm.status_code = cpu_to_le16(status_code); |
| tf->u.setup_cfm.dialog_token = dialog_token; |
| break; |
| case WLAN_TDLS_TEARDOWN: |
| tf->category = WLAN_CATEGORY_TDLS; |
| tf->action_code = WLAN_TDLS_TEARDOWN; |
| |
| skb_put(skb, sizeof(tf->u.teardown)); |
| tf->u.teardown.reason_code = cpu_to_le16(status_code); |
| break; |
| case WLAN_TDLS_DISCOVERY_REQUEST: |
| tf->category = WLAN_CATEGORY_TDLS; |
| tf->action_code = WLAN_TDLS_DISCOVERY_REQUEST; |
| |
| skb_put(skb, sizeof(tf->u.discover_req)); |
| tf->u.discover_req.dialog_token = dialog_token; |
| break; |
| default: |
| return -EINVAL; |
| } |
| |
| return 0; |
| } |
| |
| static int |
| ieee80211_prep_tdls_direct(struct wiphy *wiphy, struct net_device *dev, |
| u8 *peer, u8 action_code, u8 dialog_token, |
| u16 status_code, struct sk_buff *skb) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| enum ieee80211_band band = ieee80211_get_sdata_band(sdata); |
| struct ieee80211_mgmt *mgmt; |
| |
| mgmt = (void *)skb_put(skb, 24); |
| memset(mgmt, 0, 24); |
| memcpy(mgmt->da, peer, ETH_ALEN); |
| memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN); |
| memcpy(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN); |
| |
| mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | |
| IEEE80211_STYPE_ACTION); |
| |
| switch (action_code) { |
| case WLAN_PUB_ACTION_TDLS_DISCOVER_RES: |
| skb_put(skb, 1 + sizeof(mgmt->u.action.u.tdls_discover_resp)); |
| mgmt->u.action.category = WLAN_CATEGORY_PUBLIC; |
| mgmt->u.action.u.tdls_discover_resp.action_code = |
| WLAN_PUB_ACTION_TDLS_DISCOVER_RES; |
| mgmt->u.action.u.tdls_discover_resp.dialog_token = |
| dialog_token; |
| mgmt->u.action.u.tdls_discover_resp.capability = |
| cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata)); |
| |
| ieee80211_add_srates_ie(sdata, skb, false, band); |
| ieee80211_add_ext_srates_ie(sdata, skb, false, band); |
| ieee80211_tdls_add_ext_capab(skb); |
| break; |
| default: |
| return -EINVAL; |
| } |
| |
| return 0; |
| } |
| |
| static int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev, |
| u8 *peer, u8 action_code, u8 dialog_token, |
| u16 status_code, const u8 *extra_ies, |
| size_t extra_ies_len) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| struct ieee80211_local *local = sdata->local; |
| struct sk_buff *skb = NULL; |
| bool send_direct; |
| int ret; |
| |
| if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS)) |
| return -ENOTSUPP; |
| |
| /* make sure we are in managed mode, and associated */ |
| if (sdata->vif.type != NL80211_IFTYPE_STATION || |
| !sdata->u.mgd.associated) |
| return -EINVAL; |
| |
| tdls_dbg(sdata, "TDLS mgmt action %d peer %pM\n", |
| action_code, peer); |
| |
| skb = dev_alloc_skb(local->hw.extra_tx_headroom + |
| max(sizeof(struct ieee80211_mgmt), |
| sizeof(struct ieee80211_tdls_data)) + |
| 50 + /* supported rates */ |
| 7 + /* ext capab */ |
| extra_ies_len + |
| sizeof(struct ieee80211_tdls_lnkie)); |
| if (!skb) |
| return -ENOMEM; |
| |
| skb_reserve(skb, local->hw.extra_tx_headroom); |
| |
| switch (action_code) { |
| case WLAN_TDLS_SETUP_REQUEST: |
| case WLAN_TDLS_SETUP_RESPONSE: |
| case WLAN_TDLS_SETUP_CONFIRM: |
| case WLAN_TDLS_TEARDOWN: |
| case WLAN_TDLS_DISCOVERY_REQUEST: |
| ret = ieee80211_prep_tdls_encap_data(wiphy, dev, peer, |
| action_code, dialog_token, |
| status_code, skb); |
| send_direct = false; |
| break; |
| case WLAN_PUB_ACTION_TDLS_DISCOVER_RES: |
| ret = ieee80211_prep_tdls_direct(wiphy, dev, peer, action_code, |
| dialog_token, status_code, |
| skb); |
| send_direct = true; |
| break; |
| default: |
| ret = -ENOTSUPP; |
| break; |
| } |
| |
| if (ret < 0) |
| goto fail; |
| |
| if (extra_ies_len) |
| memcpy(skb_put(skb, extra_ies_len), extra_ies, extra_ies_len); |
| |
| /* the TDLS link IE is always added last */ |
| switch (action_code) { |
| case WLAN_TDLS_SETUP_REQUEST: |
| case WLAN_TDLS_SETUP_CONFIRM: |
| case WLAN_TDLS_TEARDOWN: |
| case WLAN_TDLS_DISCOVERY_REQUEST: |
| /* we are the initiator */ |
| ieee80211_tdls_add_link_ie(skb, sdata->vif.addr, peer, |
| sdata->u.mgd.bssid); |
| break; |
| case WLAN_TDLS_SETUP_RESPONSE: |
| case WLAN_PUB_ACTION_TDLS_DISCOVER_RES: |
| /* we are the responder */ |
| ieee80211_tdls_add_link_ie(skb, peer, sdata->vif.addr, |
| sdata->u.mgd.bssid); |
| break; |
| default: |
| ret = -ENOTSUPP; |
| goto fail; |
| } |
| |
| if (send_direct) { |
| ieee80211_tx_skb(sdata, skb); |
| return 0; |
| } |
| |
| /* |
| * According to 802.11z: Setup req/resp are sent in AC_BK, otherwise |
| * we should default to AC_VI. |
| */ |
| switch (action_code) { |
| case WLAN_TDLS_SETUP_REQUEST: |
| case WLAN_TDLS_SETUP_RESPONSE: |
| skb_set_queue_mapping(skb, IEEE80211_AC_BK); |
| skb->priority = 2; |
| break; |
| default: |
| skb_set_queue_mapping(skb, IEEE80211_AC_VI); |
| skb->priority = 5; |
| break; |
| } |
| |
| /* disable bottom halves when entering the Tx path */ |
| local_bh_disable(); |
| ret = ieee80211_subif_start_xmit(skb, dev); |
| local_bh_enable(); |
| |
| return ret; |
| |
| fail: |
| dev_kfree_skb(skb); |
| return ret; |
| } |
| |
| static int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev, |
| u8 *peer, enum nl80211_tdls_operation oper) |
| { |
| struct sta_info *sta; |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| |
| if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS)) |
| return -ENOTSUPP; |
| |
| if (sdata->vif.type != NL80211_IFTYPE_STATION) |
| return -EINVAL; |
| |
| tdls_dbg(sdata, "TDLS oper %d peer %pM\n", oper, peer); |
| |
| switch (oper) { |
| case NL80211_TDLS_ENABLE_LINK: |
| rcu_read_lock(); |
| sta = sta_info_get(sdata, peer); |
| if (!sta) { |
| rcu_read_unlock(); |
| return -ENOLINK; |
| } |
| |
| set_sta_flag(sta, WLAN_STA_TDLS_PEER_AUTH); |
| rcu_read_unlock(); |
| break; |
| case NL80211_TDLS_DISABLE_LINK: |
| return sta_info_destroy_addr(sdata, peer); |
| case NL80211_TDLS_TEARDOWN: |
| case NL80211_TDLS_SETUP: |
| case NL80211_TDLS_DISCOVERY_REQ: |
| /* We don't support in-driver setup/teardown/discovery */ |
| return -ENOTSUPP; |
| default: |
| return -ENOTSUPP; |
| } |
| |
| return 0; |
| } |
| |
| static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, |
| const u8 *peer, u64 *cookie) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| struct ieee80211_local *local = sdata->local; |
| struct ieee80211_qos_hdr *nullfunc; |
| struct sk_buff *skb; |
| int size = sizeof(*nullfunc); |
| __le16 fc; |
| bool qos; |
| struct ieee80211_tx_info *info; |
| struct sta_info *sta; |
| struct ieee80211_chanctx_conf *chanctx_conf; |
| enum ieee80211_band band; |
| |
| rcu_read_lock(); |
| chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); |
| if (WARN_ON(!chanctx_conf)) { |
| rcu_read_unlock(); |
| return -EINVAL; |
| } |
| band = chanctx_conf->def.chan->band; |
| sta = sta_info_get(sdata, peer); |
| if (sta) { |
| qos = test_sta_flag(sta, WLAN_STA_WME); |
| } else { |
| rcu_read_unlock(); |
| return -ENOLINK; |
| } |
| |
| if (qos) { |
| fc = cpu_to_le16(IEEE80211_FTYPE_DATA | |
| IEEE80211_STYPE_QOS_NULLFUNC | |
| IEEE80211_FCTL_FROMDS); |
| } else { |
| size -= 2; |
| fc = cpu_to_le16(IEEE80211_FTYPE_DATA | |
| IEEE80211_STYPE_NULLFUNC | |
| IEEE80211_FCTL_FROMDS); |
| } |
| |
| skb = dev_alloc_skb(local->hw.extra_tx_headroom + size); |
| if (!skb) { |
| rcu_read_unlock(); |
| return -ENOMEM; |
| } |
| |
| skb->dev = dev; |
| |
| skb_reserve(skb, local->hw.extra_tx_headroom); |
| |
| nullfunc = (void *) skb_put(skb, size); |
| nullfunc->frame_control = fc; |
| nullfunc->duration_id = 0; |
| memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN); |
| memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN); |
| memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN); |
| nullfunc->seq_ctrl = 0; |
| |
| info = IEEE80211_SKB_CB(skb); |
| |
| info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS | |
| IEEE80211_TX_INTFL_NL80211_FRAME_TX; |
| |
| skb_set_queue_mapping(skb, IEEE80211_AC_VO); |
| skb->priority = 7; |
| if (qos) |
| nullfunc->qos_ctrl = cpu_to_le16(7); |
| |
| local_bh_disable(); |
| ieee80211_xmit(sdata, skb, band); |
| local_bh_enable(); |
| rcu_read_unlock(); |
| |
| *cookie = (unsigned long) skb; |
| return 0; |
| } |
| |
| static int ieee80211_cfg_get_channel(struct wiphy *wiphy, |
| struct wireless_dev *wdev, |
| struct cfg80211_chan_def *chandef) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); |
| struct ieee80211_chanctx_conf *chanctx_conf; |
| int ret = -ENODATA; |
| |
| rcu_read_lock(); |
| chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); |
| if (chanctx_conf) { |
| *chandef = chanctx_conf->def; |
| ret = 0; |
| } |
| rcu_read_unlock(); |
| |
| return ret; |
| } |
| |
| #ifdef CONFIG_PM |
| static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled) |
| { |
| drv_set_wakeup(wiphy_priv(wiphy), enabled); |
| } |
| #endif |
| |
| struct cfg80211_ops mac80211_config_ops = { |
| .add_virtual_intf = ieee80211_add_iface, |
| .del_virtual_intf = ieee80211_del_iface, |
| .change_virtual_intf = ieee80211_change_iface, |
| .start_p2p_device = ieee80211_start_p2p_device, |
| .stop_p2p_device = ieee80211_stop_p2p_device, |
| .add_key = ieee80211_add_key, |
| .del_key = ieee80211_del_key, |
| .get_key = ieee80211_get_key, |
| .set_default_key = ieee80211_config_default_key, |
| .set_default_mgmt_key = ieee80211_config_default_mgmt_key, |
| .start_ap = ieee80211_start_ap, |
| .change_beacon = ieee80211_change_beacon, |
| .stop_ap = ieee80211_stop_ap, |
| .add_station = ieee80211_add_station, |
| .del_station = ieee80211_del_station, |
| .change_station = ieee80211_change_station, |
| .get_station = ieee80211_get_station, |
| .dump_station = ieee80211_dump_station, |
| .dump_survey = ieee80211_dump_survey, |
| #ifdef CONFIG_MAC80211_MESH |
| .add_mpath = ieee80211_add_mpath, |
| .del_mpath = ieee80211_del_mpath, |
| .change_mpath = ieee80211_change_mpath, |
| .get_mpath = ieee80211_get_mpath, |
| .dump_mpath = ieee80211_dump_mpath, |
| .update_mesh_config = ieee80211_update_mesh_config, |
| .get_mesh_config = ieee80211_get_mesh_config, |
| .join_mesh = ieee80211_join_mesh, |
| .leave_mesh = ieee80211_leave_mesh, |
| #endif |
| .change_bss = ieee80211_change_bss, |
| .set_txq_params = ieee80211_set_txq_params, |
| .set_monitor_channel = ieee80211_set_monitor_channel, |
| .suspend = ieee80211_suspend, |
| .resume = ieee80211_resume, |
| .scan = ieee80211_scan, |
| .sched_scan_start = ieee80211_sched_scan_start, |
| .sched_scan_stop = ieee80211_sched_scan_stop, |
| .auth = ieee80211_auth, |
| .assoc = ieee80211_assoc, |
| .deauth = ieee80211_deauth, |
| .disassoc = ieee80211_disassoc, |
| .join_ibss = ieee80211_join_ibss, |
| .leave_ibss = ieee80211_leave_ibss, |
| .set_mcast_rate = ieee80211_set_mcast_rate, |
| .set_wiphy_params = ieee80211_set_wiphy_params, |
| .set_tx_power = ieee80211_set_tx_power, |
| .get_tx_power = ieee80211_get_tx_power, |
| .set_wds_peer = ieee80211_set_wds_peer, |
| .rfkill_poll = ieee80211_rfkill_poll, |
| CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) |
| CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump) |
| .set_power_mgmt = ieee80211_set_power_mgmt, |
| .set_bitrate_mask = ieee80211_set_bitrate_mask, |
| .remain_on_channel = ieee80211_remain_on_channel, |
| .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel, |
| .mgmt_tx = ieee80211_mgmt_tx, |
| .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait, |
| .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, |
| .mgmt_frame_register = ieee80211_mgmt_frame_register, |
| .set_antenna = ieee80211_set_antenna, |
| .get_antenna = ieee80211_get_antenna, |
| .set_ringparam = ieee80211_set_ringparam, |
| .get_ringparam = ieee80211_get_ringparam, |
| .set_rekey_data = ieee80211_set_rekey_data, |
| .tdls_oper = ieee80211_tdls_oper, |
| .tdls_mgmt = ieee80211_tdls_mgmt, |
| .probe_client = ieee80211_probe_client, |
| .set_noack_map = ieee80211_set_noack_map, |
| #ifdef CONFIG_PM |
| .set_wakeup = ieee80211_set_wakeup, |
| #endif |
| .get_et_sset_count = ieee80211_get_et_sset_count, |
| .get_et_stats = ieee80211_get_et_stats, |
| .get_et_strings = ieee80211_get_et_strings, |
| .get_channel = ieee80211_cfg_get_channel, |
| }; |