| /* |
| * mac80211 configuration hooks for cfg80211 |
| * |
| * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net> |
| * Copyright 2013-2015 Intel Mobile Communications GmbH |
| * |
| * 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 "rate.h" |
| #include "mesh.h" |
| #include "wme.h" |
| |
| static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy, |
| const char *name, |
| unsigned char name_assign_type, |
| 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, name_assign_type, &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)) { |
| u32 mask = MONITOR_FLAG_COOK_FRAMES | |
| MONITOR_FLAG_ACTIVE; |
| |
| /* |
| * Prohibit MONITOR_FLAG_COOK_FRAMES and |
| * MONITOR_FLAG_ACTIVE 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 & mask) != (sdata->u.mntr_flags & mask)) |
| 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) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); |
| int ret; |
| |
| mutex_lock(&sdata->local->chanctx_mtx); |
| ret = ieee80211_check_combinations(sdata, NULL, 0, 0); |
| mutex_unlock(&sdata->local->chanctx_mtx); |
| if (ret < 0) |
| return ret; |
| |
| 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; |
| |
| ieee80211_check_fast_xmit_iface(sdata); |
| |
| 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 ieee80211_local *local = sdata->local; |
| struct sta_info *sta = NULL; |
| const struct ieee80211_cipher_scheme *cs = 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(local->wep_tx_tfm)) |
| return -EINVAL; |
| break; |
| case WLAN_CIPHER_SUITE_CCMP: |
| case WLAN_CIPHER_SUITE_CCMP_256: |
| case WLAN_CIPHER_SUITE_AES_CMAC: |
| case WLAN_CIPHER_SUITE_BIP_CMAC_256: |
| case WLAN_CIPHER_SUITE_BIP_GMAC_128: |
| case WLAN_CIPHER_SUITE_BIP_GMAC_256: |
| case WLAN_CIPHER_SUITE_GCMP: |
| case WLAN_CIPHER_SUITE_GCMP_256: |
| break; |
| default: |
| cs = ieee80211_cs_get(local, params->cipher, sdata->vif.type); |
| break; |
| } |
| |
| key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len, |
| params->key, params->seq_len, params->seq, |
| cs); |
| if (IS_ERR(key)) |
| return PTR_ERR(key); |
| |
| if (pairwise) |
| key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE; |
| |
| mutex_lock(&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); |
| /* |
| * The ASSOC test makes sure the driver is ready to |
| * receive the key. When wpa_supplicant has roamed |
| * using FT, it attempts to set the key before |
| * association has completed, this rejects that attempt |
| * so it will set the key again after association. |
| * |
| * TODO: accept the key if we have a station entry and |
| * add it to the device after the station. |
| */ |
| if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) { |
| ieee80211_key_free_unused(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 CPTCFG_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: |
| case NL80211_IFTYPE_OCB: |
| /* shouldn't happen */ |
| WARN_ON_ONCE(1); |
| break; |
| } |
| |
| if (sta) |
| sta->cipher_scheme = cs; |
| |
| err = ieee80211_key_link(key, sdata, sta); |
| |
| out_unlock: |
| mutex_unlock(&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[key_idx]); |
| 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, true); |
| |
| 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; |
| struct ieee80211_key_seq kseq = {}; |
| |
| 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_idx < NUM_DEFAULT_KEYS) |
| key = rcu_dereference(sta->ptk[key_idx]); |
| else if (!pairwise && |
| key_idx < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_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 && |
| !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { |
| drv_get_key_seq(sdata->local, key, &kseq); |
| iv32 = kseq.tkip.iv32; |
| iv16 = kseq.tkip.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: |
| case WLAN_CIPHER_SUITE_CCMP_256: |
| case WLAN_CIPHER_SUITE_AES_CMAC: |
| case WLAN_CIPHER_SUITE_BIP_CMAC_256: |
| BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != |
| offsetof(typeof(kseq), aes_cmac)); |
| case WLAN_CIPHER_SUITE_BIP_GMAC_128: |
| case WLAN_CIPHER_SUITE_BIP_GMAC_256: |
| BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != |
| offsetof(typeof(kseq), aes_gmac)); |
| case WLAN_CIPHER_SUITE_GCMP: |
| case WLAN_CIPHER_SUITE_GCMP_256: |
| BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != |
| offsetof(typeof(kseq), gcmp)); |
| |
| if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && |
| !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { |
| drv_get_key_seq(sdata->local, key, &kseq); |
| memcpy(seq, kseq.ccmp.pn, 6); |
| } else { |
| pn64 = atomic64_read(&key->conf.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; |
| default: |
| if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) |
| break; |
| if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) |
| break; |
| drv_get_key_seq(sdata->local, key, &kseq); |
| params.seq = kseq.hw.seq; |
| params.seq_len = kseq.hw.seq_len; |
| 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; |
| int shift = ieee80211_vif_get_shift(&sta->sdata->vif); |
| u16 brate; |
| |
| sband = sta->local->hw.wiphy->bands[ |
| ieee80211_get_sdata_band(sta->sdata)]; |
| brate = sband->bitrates[rate->idx].bitrate; |
| rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift); |
| } |
| if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH) |
| rinfo->bw = RATE_INFO_BW_40; |
| else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH) |
| rinfo->bw = RATE_INFO_BW_80; |
| else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH) |
| rinfo->bw = RATE_INFO_BW_160; |
| else |
| rinfo->bw = RATE_INFO_BW_20; |
| if (rate->flags & IEEE80211_TX_RC_SHORT_GI) |
| rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; |
| } |
| |
| 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, |
| const 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->mtx); |
| 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_chandef = *chandef; |
| ieee80211_hw_config(local, 0); |
| } |
| |
| if (ret == 0) |
| local->monitor_chandef = *chandef; |
| mutex_unlock(&local->iflist_mtx); |
| mutex_unlock(&local->mtx); |
| |
| return ret; |
| } |
| |
| static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata, |
| const u8 *resp, size_t resp_len, |
| const struct ieee80211_csa_settings *csa) |
| { |
| struct probe_resp *new, *old; |
| |
| if (!resp || !resp_len) |
| return 1; |
| |
| old = sdata_dereference(sdata->u.ap.probe_resp, sdata); |
| |
| new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL); |
| if (!new) |
| return -ENOMEM; |
| |
| new->len = resp_len; |
| memcpy(new->data, resp, resp_len); |
| |
| if (csa) |
| memcpy(new->csa_counter_offsets, csa->counter_offsets_presp, |
| csa->n_counter_offsets_presp * |
| sizeof(new->csa_counter_offsets[0])); |
| |
| 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, |
| const struct ieee80211_csa_settings *csa) |
| { |
| struct beacon_data *new, *old; |
| int new_head_len, new_tail_len; |
| int size, err; |
| u32 changed = BSS_CHANGED_BEACON; |
| |
| old = sdata_dereference(sdata->u.ap.beacon, sdata); |
| |
| |
| /* 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; |
| |
| if (csa) { |
| new->csa_current_counter = csa->count; |
| memcpy(new->csa_counter_offsets, csa->counter_offsets_beacon, |
| csa->n_counter_offsets_beacon * |
| sizeof(new->csa_counter_offsets[0])); |
| } |
| |
| /* 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, csa); |
| 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 ieee80211_local *local = sdata->local; |
| 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 | |
| BSS_CHANGED_TXPOWER; |
| int err; |
| |
| old = sdata_dereference(sdata->u.ap.beacon, sdata); |
| if (old) |
| return -EALREADY; |
| |
| switch (params->smps_mode) { |
| case NL80211_SMPS_OFF: |
| sdata->smps_mode = IEEE80211_SMPS_OFF; |
| break; |
| case NL80211_SMPS_STATIC: |
| sdata->smps_mode = IEEE80211_SMPS_STATIC; |
| break; |
| case NL80211_SMPS_DYNAMIC: |
| sdata->smps_mode = IEEE80211_SMPS_DYNAMIC; |
| break; |
| default: |
| return -EINVAL; |
| } |
| sdata->needed_rx_chains = sdata->local->rx_chains; |
| |
| mutex_lock(&local->mtx); |
| err = ieee80211_vif_use_channel(sdata, ¶ms->chandef, |
| IEEE80211_CHANCTX_SHARED); |
| if (!err) |
| ieee80211_vif_copy_chanctx_to_vlans(sdata, false); |
| mutex_unlock(&local->mtx); |
| 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; |
| sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local, |
| ¶ms->crypto, |
| sdata->vif.type); |
| |
| 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; |
| vlan->encrypt_headroom = |
| ieee80211_cs_headroom(sdata->local, |
| ¶ms->crypto, |
| vlan->vif.type); |
| } |
| |
| 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); |
| |
| memset(&sdata->vif.bss_conf.p2p_noa_attr, 0, |
| sizeof(sdata->vif.bss_conf.p2p_noa_attr)); |
| sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow = |
| params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; |
| if (params->p2p_opp_ps) |
| sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= |
| IEEE80211_P2P_OPPPS_ENABLE_BIT; |
| |
| err = ieee80211_assign_beacon(sdata, ¶ms->beacon, NULL); |
| if (err < 0) { |
| ieee80211_vif_release_channel(sdata); |
| return err; |
| } |
| changed |= err; |
| |
| err = drv_start_ap(sdata->local, sdata); |
| if (err) { |
| old = sdata_dereference(sdata->u.ap.beacon, sdata); |
| |
| if (old) |
| kfree_rcu(old, rcu_head); |
| RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); |
| ieee80211_vif_release_channel(sdata); |
| return err; |
| } |
| |
| ieee80211_recalc_dtim(local, sdata); |
| 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); |
| sdata_assert_lock(sdata); |
| |
| /* don't allow changing the beacon while CSA is in place - offset |
| * of channel switch counter may change |
| */ |
| if (sdata->vif.csa_active) |
| return -EBUSY; |
| |
| old = sdata_dereference(sdata->u.ap.beacon, sdata); |
| if (!old) |
| return -ENOENT; |
| |
| err = ieee80211_assign_beacon(sdata, params, NULL); |
| 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; |
| struct cfg80211_chan_def chandef; |
| |
| sdata_assert_lock(sdata); |
| |
| old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata); |
| if (!old_beacon) |
| return -ENOENT; |
| old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata); |
| |
| /* abort any running channel switch */ |
| mutex_lock(&local->mtx); |
| sdata->vif.csa_active = false; |
| if (sdata->csa_block_tx) { |
| ieee80211_wake_vif_queues(local, sdata, |
| IEEE80211_QUEUE_STOP_REASON_CSA); |
| sdata->csa_block_tx = false; |
| } |
| |
| mutex_unlock(&local->mtx); |
| |
| kfree(sdata->u.ap.next_beacon); |
| sdata->u.ap.next_beacon = NULL; |
| |
| /* 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); |
| sdata->u.ap.driver_smps_mode = IEEE80211_SMPS_OFF; |
| |
| __sta_info_flush(sdata, true); |
| ieee80211_free_keys(sdata, true); |
| |
| sdata->vif.bss_conf.enable_beacon = false; |
| sdata->vif.bss_conf.ssid_len = 0; |
| clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state); |
| ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED); |
| |
| if (sdata->wdev.cac_started) { |
| chandef = sdata->vif.bss_conf.chandef; |
| cancel_delayed_work_sync(&sdata->dfs_cac_timer_work); |
| cfg80211_cac_event(sdata->dev, &chandef, |
| NL80211_RADAR_CAC_ABORTED, |
| GFP_KERNEL); |
| } |
| |
| 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); |
| |
| mutex_lock(&local->mtx); |
| ieee80211_vif_copy_chanctx_to_vlans(sdata, true); |
| ieee80211_vif_release_channel(sdata); |
| mutex_unlock(&local->mtx); |
| |
| 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)) { |
| /* |
| * When peer becomes associated, init rate control as |
| * well. Some drivers require rate control initialized |
| * before drv_sta_state() is called. |
| */ |
| if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL)) |
| rate_control_rate_init(sta); |
| |
| 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 void sta_apply_mesh_params(struct ieee80211_local *local, |
| struct sta_info *sta, |
| struct station_parameters *params) |
| { |
| #ifdef CPTCFG_MAC80211_MESH |
| struct ieee80211_sub_if_data *sdata = sta->sdata; |
| u32 changed = 0; |
| |
| if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) { |
| switch (params->plink_state) { |
| case NL80211_PLINK_ESTAB: |
| if (sta->mesh->plink_state != NL80211_PLINK_ESTAB) |
| changed = mesh_plink_inc_estab_count(sdata); |
| sta->mesh->plink_state = params->plink_state; |
| |
| ieee80211_mps_sta_status_update(sta); |
| changed |= ieee80211_mps_set_sta_local_pm(sta, |
| sdata->u.mesh.mshcfg.power_mode); |
| break; |
| case NL80211_PLINK_LISTEN: |
| case NL80211_PLINK_BLOCKED: |
| case NL80211_PLINK_OPN_SNT: |
| case NL80211_PLINK_OPN_RCVD: |
| case NL80211_PLINK_CNF_RCVD: |
| case NL80211_PLINK_HOLDING: |
| if (sta->mesh->plink_state == NL80211_PLINK_ESTAB) |
| changed = mesh_plink_dec_estab_count(sdata); |
| sta->mesh->plink_state = params->plink_state; |
| |
| ieee80211_mps_sta_status_update(sta); |
| changed |= ieee80211_mps_set_sta_local_pm(sta, |
| NL80211_MESH_POWER_UNKNOWN); |
| break; |
| default: |
| /* nothing */ |
| break; |
| } |
| } |
| |
| switch (params->plink_action) { |
| case NL80211_PLINK_ACTION_NO_ACTION: |
| /* nothing */ |
| break; |
| case NL80211_PLINK_ACTION_OPEN: |
| changed |= mesh_plink_open(sta); |
| break; |
| case NL80211_PLINK_ACTION_BLOCK: |
| changed |= mesh_plink_block(sta); |
| break; |
| } |
| |
| if (params->local_pm) |
| changed |= ieee80211_mps_set_sta_local_pm(sta, |
| params->local_pm); |
| |
| ieee80211_mbss_info_change_notify(sdata, changed); |
| #endif |
| } |
| |
| static int sta_apply_parameters(struct ieee80211_local *local, |
| struct sta_info *sta, |
| struct station_parameters *params) |
| { |
| int ret = 0; |
| 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); |
| } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { |
| /* |
| * TDLS -- everything follows authorized, but |
| * only becoming authorized is possible, not |
| * going back |
| */ |
| if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) { |
| set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | |
| BIT(NL80211_STA_FLAG_ASSOCIATED); |
| mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | |
| BIT(NL80211_STA_FLAG_ASSOCIATED); |
| } |
| } |
| |
| if (mask & BIT(NL80211_STA_FLAG_WME) && |
| local->hw.queues >= IEEE80211_NUM_ACS) |
| sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME); |
| |
| /* auth flags will be set later for TDLS, |
| * and for unassociated stations that move to assocaited */ |
| if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && |
| !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) && |
| (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_MFP)) { |
| sta->sta.mfp = !!(set & 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); |
| } |
| |
| /* mark TDLS channel switch support, if the AP allows it */ |
| if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && |
| !sdata->u.mgd.tdls_chan_switch_prohibited && |
| params->ext_capab_len >= 4 && |
| params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH) |
| set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH); |
| |
| if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && |
| !sdata->u.mgd.tdls_wider_bw_prohibited && |
| ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) && |
| params->ext_capab_len >= 8 && |
| params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED) |
| set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW); |
| |
| if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) { |
| sta->sta.uapsd_queues = params->uapsd_queues; |
| sta->sta.max_sp = params->max_sp; |
| } |
| |
| /* The sender might not have sent the last bit, consider it to be 0 */ |
| if (params->ext_capab_len >= 8) { |
| u8 val = (params->ext_capab[7] & |
| WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB) >> 7; |
| |
| /* we did get all the bits, take the MSB as well */ |
| if (params->ext_capab_len >= 9) { |
| u8 val_msb = params->ext_capab[8] & |
| WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB; |
| val_msb <<= 1; |
| val |= val_msb; |
| } |
| |
| switch (val) { |
| case 1: |
| sta->sta.max_amsdu_subframes = 32; |
| break; |
| case 2: |
| sta->sta.max_amsdu_subframes = 16; |
| break; |
| case 3: |
| sta->sta.max_amsdu_subframes = 8; |
| break; |
| default: |
| sta->sta.max_amsdu_subframes = 0; |
| } |
| } |
| |
| /* |
| * 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) { |
| ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, |
| sband, params->supported_rates, |
| params->supported_rates_len, |
| &sta->sta.supp_rates[band]); |
| } |
| |
| if (params->ht_capa) |
| ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, |
| params->ht_capa, sta); |
| |
| /* VHT can override some HT caps such as the A-MSDU max length */ |
| if (params->vht_capa) |
| ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, |
| params->vht_capa, sta); |
| |
| if (params->opmode_notif_used) { |
| /* returned value is only needed for rc update, but the |
| * rc isn't initialized here yet, so ignore it |
| */ |
| __ieee80211_vht_handle_opmode(sdata, sta, |
| params->opmode_notif, band); |
| } |
| |
| if (ieee80211_vif_is_mesh(&sdata->vif)) |
| sta_apply_mesh_params(local, sta, params); |
| |
| /* set the STA state after all sta info from usermode has been set */ |
| if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) || |
| set & BIT(NL80211_STA_FLAG_ASSOCIATED)) { |
| ret = sta_apply_auth_flags(local, sta, mask, set); |
| if (ret) |
| return ret; |
| } |
| |
| return 0; |
| } |
| |
| static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, |
| const 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; |
| |
| if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) |
| sta->sta.tdls = true; |
| |
| err = sta_apply_parameters(local, sta, params); |
| if (err) { |
| sta_info_free(local, sta); |
| return err; |
| } |
| |
| /* |
| * for TDLS and for unassociated station, rate control should be |
| * initialized only when rates are known and station is marked |
| * authorized/associated |
| */ |
| if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && |
| test_sta_flag(sta, WLAN_STA_ASSOC)) |
| 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, |
| struct station_del_parameters *params) |
| { |
| struct ieee80211_sub_if_data *sdata; |
| |
| sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| |
| if (params->mac) |
| return sta_info_destroy_addr_bss(sdata, params->mac); |
| |
| sta_info_flush(sdata); |
| return 0; |
| } |
| |
| static int ieee80211_change_station(struct wiphy *wiphy, |
| struct net_device *dev, const 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; |
| enum cfg80211_station_type statype; |
| int err; |
| |
| mutex_lock(&local->sta_mtx); |
| |
| sta = sta_info_get_bss(sdata, mac); |
| if (!sta) { |
| err = -ENOENT; |
| goto out_err; |
| } |
| |
| switch (sdata->vif.type) { |
| case NL80211_IFTYPE_MESH_POINT: |
| if (sdata->u.mesh.user_mpm) |
| statype = CFG80211_STA_MESH_PEER_USER; |
| else |
| statype = CFG80211_STA_MESH_PEER_KERNEL; |
| break; |
| case NL80211_IFTYPE_ADHOC: |
| statype = CFG80211_STA_IBSS; |
| break; |
| case NL80211_IFTYPE_STATION: |
| if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { |
| statype = CFG80211_STA_AP_STA; |
| break; |
| } |
| if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) |
| statype = CFG80211_STA_TDLS_PEER_ACTIVE; |
| else |
| statype = CFG80211_STA_TDLS_PEER_SETUP; |
| break; |
| case NL80211_IFTYPE_AP: |
| case NL80211_IFTYPE_AP_VLAN: |
| if (test_sta_flag(sta, WLAN_STA_ASSOC)) |
| statype = CFG80211_STA_AP_CLIENT; |
| else |
| statype = CFG80211_STA_AP_CLIENT_UNASSOC; |
| break; |
| default: |
| err = -EOPNOTSUPP; |
| goto out_err; |
| } |
| |
| err = cfg80211_check_station_change(wiphy, params, statype); |
| if (err) |
| goto out_err; |
| |
| 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 (params->vlan->ieee80211_ptr->use_4addr) { |
| if (vlansdata->u.vlan.sta) { |
| err = -EBUSY; |
| goto out_err; |
| } |
| |
| 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_INIT_POINTER(sta->sdata->u.vlan.sta, NULL); |
| prev_4addr = true; |
| } |
| |
| sta->sdata = vlansdata; |
| ieee80211_check_fast_xmit(sta); |
| |
| 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) |
| goto out_err; |
| |
| mutex_unlock(&local->sta_mtx); |
| |
| if ((sdata->vif.type == NL80211_IFTYPE_AP || |
| sdata->vif.type == NL80211_IFTYPE_AP_VLAN) && |
| sta->known_smps_mode != sta->sdata->bss->req_smps && |
| test_sta_flag(sta, WLAN_STA_AUTHORIZED) && |
| sta_info_tx_streams(sta) != 1) { |
| ht_dbg(sta->sdata, |
| "%pM just authorized and MIMO capable - update SMPS\n", |
| sta->sta.addr); |
| ieee80211_send_smps_action(sta->sdata, |
| sta->sdata->bss->req_smps, |
| sta->sta.addr, |
| sta->sdata->vif.bss_conf.bssid); |
| } |
| |
| if (sdata->vif.type == NL80211_IFTYPE_STATION && |
| params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { |
| ieee80211_recalc_ps(local); |
| ieee80211_recalc_ps_vif(sdata); |
| } |
| |
| return 0; |
| out_err: |
| mutex_unlock(&local->sta_mtx); |
| return err; |
| } |
| |
| #ifdef CPTCFG_MAC80211_MESH |
| static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev, |
| const u8 *dst, const 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_add(sdata, dst); |
| if (IS_ERR(mpath)) { |
| rcu_read_unlock(); |
| return PTR_ERR(mpath); |
| } |
| |
| mesh_path_fix_nexthop(mpath, sta); |
| |
| rcu_read_unlock(); |
| return 0; |
| } |
| |
| static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev, |
| const u8 *dst) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| |
| if (dst) |
| return mesh_path_del(sdata, dst); |
| |
| mesh_path_flush_by_iface(sdata); |
| return 0; |
| } |
| |
| static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev, |
| const u8 *dst, const 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(sdata, dst); |
| 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 |
| eth_zero_addr(next_hop); |
| |
| 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(sdata, dst); |
| 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(sdata, idx); |
| 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 void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp, |
| struct mpath_info *pinfo) |
| { |
| memset(pinfo, 0, sizeof(*pinfo)); |
| memcpy(mpp, mpath->mpp, ETH_ALEN); |
| |
| pinfo->generation = mpp_paths_generation; |
| } |
| |
| static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev, |
| u8 *dst, u8 *mpp, 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 = mpp_path_lookup(sdata, dst); |
| if (!mpath) { |
| rcu_read_unlock(); |
| return -ENOENT; |
| } |
| memcpy(dst, mpath->dst, ETH_ALEN); |
| mpp_set_pinfo(mpath, mpp, pinfo); |
| rcu_read_unlock(); |
| return 0; |
| } |
| |
| static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev, |
| int idx, u8 *dst, u8 *mpp, |
| 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 = mpp_path_lookup_by_idx(sdata, idx); |
| if (!mpath) { |
| rcu_read_unlock(); |
| return -ENOENT; |
| } |
| memcpy(dst, mpath->dst, ETH_ALEN); |
| mpp_set_pinfo(mpath, mpp, 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->user_mpm = setup->user_mpm; |
| ifmsh->mesh_auth_id = setup->auth_id; |
| 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)); |
| sdata->vif.bss_conf.basic_rates = setup->basic_rates; |
| |
| sdata->vif.bss_conf.beacon_int = setup->beacon_interval; |
| sdata->vif.bss_conf.dtim_period = setup->dtim_period; |
| |
| 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)) { |
| if (ifmsh->user_mpm) |
| return -EBUSY; |
| 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 (!ieee80211_hw_check(&sdata->local->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; |
| if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) { |
| conf->power_mode = nconf->power_mode; |
| ieee80211_mps_local_status_update(sdata); |
| } |
| if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask)) |
| conf->dot11MeshAwakeWindowDuration = |
| nconf->dot11MeshAwakeWindowDuration; |
| if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask)) |
| conf->plink_timeout = nconf->plink_timeout; |
| ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON); |
| 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; |
| |
| mutex_lock(&sdata->local->mtx); |
| err = ieee80211_vif_use_channel(sdata, &setup->chandef, |
| IEEE80211_CHANCTX_SHARED); |
| mutex_unlock(&sdata->local->mtx); |
| if (err) |
| return err; |
| |
| return ieee80211_start_mesh(sdata); |
| } |
| |
| 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); |
| mutex_lock(&sdata->local->mtx); |
| ieee80211_vif_release_channel(sdata); |
| mutex_unlock(&sdata->local->mtx); |
| |
| 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 (!sdata_dereference(sdata->u.ap.beacon, sdata)) |
| 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) { |
| ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, |
| wiphy->bands[band], |
| params->basic_rates, |
| params->basic_rates_len, |
| &sdata->vif.bss_conf.basic_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_noa_attr.oppps_ctwindow &= |
| ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK; |
| sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= |
| params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; |
| changed |= BSS_CHANGED_P2P_PS; |
| } |
| |
| if (params->p2p_opp_ps > 0) { |
| sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= |
| IEEE80211_P2P_OPPPS_ENABLE_BIT; |
| changed |= BSS_CHANGED_P2P_PS; |
| } else if (params->p2p_opp_ps == 0) { |
| sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= |
| ~IEEE80211_P2P_OPPPS_ENABLE_BIT; |
| 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 (0 && 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 void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev) |
| { |
| ieee80211_scan_cancel(wiphy_priv(wiphy)); |
| } |
| |
| 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_local *local = wiphy_priv(wiphy); |
| |
| if (!local->ops->sched_scan_stop) |
| return -EOPNOTSUPP; |
| |
| return ieee80211_request_sched_scan_stop(local); |
| } |
| |
| 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_join_ocb(struct wiphy *wiphy, struct net_device *dev, |
| struct ocb_setup *setup) |
| { |
| return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup); |
| } |
| |
| static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev) |
| { |
| return ieee80211_ocb_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(int) * IEEE80211_NUM_BANDS); |
| |
| 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) { |
| ieee80211_check_fast_xmit_all(local); |
| |
| err = drv_set_frag_threshold(local, wiphy->frag_threshold); |
| |
| if (err) { |
| ieee80211_check_fast_xmit_all(local); |
| return err; |
| } |
| } |
| |
| if ((changed & WIPHY_PARAM_COVERAGE_CLASS) || |
| (changed & WIPHY_PARAM_DYN_ACK)) { |
| s16 coverage_class; |
| |
| coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ? |
| wiphy->coverage_class : -1; |
| err = drv_set_coverage_class(local, 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; |
| enum nl80211_tx_power_setting txp_type = type; |
| bool update_txp_type = false; |
| |
| if (wdev) { |
| sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); |
| |
| switch (type) { |
| case NL80211_TX_POWER_AUTOMATIC: |
| sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL; |
| txp_type = NL80211_TX_POWER_LIMITED; |
| 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; |
| } |
| |
| if (txp_type != sdata->vif.bss_conf.txpower_type) { |
| update_txp_type = true; |
| sdata->vif.bss_conf.txpower_type = txp_type; |
| } |
| |
| ieee80211_recalc_txpower(sdata, update_txp_type); |
| |
| return 0; |
| } |
| |
| switch (type) { |
| case NL80211_TX_POWER_AUTOMATIC: |
| local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; |
| txp_type = NL80211_TX_POWER_LIMITED; |
| 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; |
| if (txp_type != sdata->vif.bss_conf.txpower_type) |
| update_txp_type = true; |
| sdata->vif.bss_conf.txpower_type = txp_type; |
| } |
| list_for_each_entry(sdata, &local->interfaces, list) |
| ieee80211_recalc_txpower(sdata, update_txp_type); |
| 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->ops->get_txpower) |
| return drv_get_txpower(local, sdata, dbm); |
| |
| 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 CPTCFG_NL80211_TESTMODE |
| static int ieee80211_testmode_cmd(struct wiphy *wiphy, |
| struct wireless_dev *wdev, |
| void *data, int len) |
| { |
| struct ieee80211_local *local = wiphy_priv(wiphy); |
| struct ieee80211_vif *vif = NULL; |
| |
| if (!local->ops->testmode_cmd) |
| return -EOPNOTSUPP; |
| |
| if (wdev) { |
| struct ieee80211_sub_if_data *sdata; |
| |
| sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); |
| if (sdata->flags & IEEE80211_SDATA_IN_DRIVER) |
| vif = &sdata->vif; |
| } |
| |
| return local->ops->testmode_cmd(&local->hw, vif, 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_ap(struct ieee80211_sub_if_data *sdata, |
| enum ieee80211_smps_mode smps_mode) |
| { |
| struct sta_info *sta; |
| enum ieee80211_smps_mode old_req; |
| |
| if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP)) |
| return -EINVAL; |
| |
| if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) |
| return 0; |
| |
| old_req = sdata->u.ap.req_smps; |
| sdata->u.ap.req_smps = smps_mode; |
| |
| /* AUTOMATIC doesn't mean much for AP - don't allow it */ |
| if (old_req == smps_mode || |
| smps_mode == IEEE80211_SMPS_AUTOMATIC) |
| return 0; |
| |
| /* If no associated stations, there's no need to do anything */ |
| if (!atomic_read(&sdata->u.ap.num_mcast_sta)) { |
| sdata->smps_mode = smps_mode; |
| ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps); |
| return 0; |
| } |
| |
| ht_dbg(sdata, |
| "SMPS %d requested in AP mode, sending Action frame to %d stations\n", |
| smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta)); |
| |
| mutex_lock(&sdata->local->sta_mtx); |
| list_for_each_entry(sta, &sdata->local->sta_list, list) { |
| /* |
| * Only stations associated to our AP and |
| * associated VLANs |
| */ |
| if (sta->sdata->bss != &sdata->u.ap) |
| continue; |
| |
| /* This station doesn't support MIMO - skip it */ |
| if (sta_info_tx_streams(sta) == 1) |
| continue; |
| |
| /* |
| * Don't wake up a STA just to send the action frame |
| * unless we are getting more restrictive. |
| */ |
| if (test_sta_flag(sta, WLAN_STA_PS_STA) && |
| !ieee80211_smps_is_restrictive(sta->known_smps_mode, |
| smps_mode)) { |
| ht_dbg(sdata, "Won't send SMPS to sleeping STA %pM\n", |
| sta->sta.addr); |
| continue; |
| } |
| |
| /* |
| * If the STA is not authorized, wait until it gets |
| * authorized and the action frame will be sent then. |
| */ |
| if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED)) |
| continue; |
| |
| ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr); |
| ieee80211_send_smps_action(sdata, smps_mode, sta->sta.addr, |
| sdata->vif.bss_conf.bssid); |
| } |
| mutex_unlock(&sdata->local->sta_mtx); |
| |
| sdata->smps_mode = smps_mode; |
| ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps); |
| |
| return 0; |
| } |
| |
| int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, |
| enum ieee80211_smps_mode smps_mode) |
| { |
| const u8 *ap; |
| enum ieee80211_smps_mode old_req; |
| int err; |
| struct sta_info *sta; |
| bool tdls_peer_found = false; |
| |
| lockdep_assert_held(&sdata->wdev.mtx); |
| |
| if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) |
| return -EINVAL; |
| |
| 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; |
| |
| rcu_read_lock(); |
| list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) { |
| if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded || |
| !test_sta_flag(sta, WLAN_STA_AUTHORIZED)) |
| continue; |
| |
| tdls_peer_found = true; |
| break; |
| } |
| rcu_read_unlock(); |
| |
| if (smps_mode == IEEE80211_SMPS_AUTOMATIC) { |
| if (tdls_peer_found || !sdata->u.mgd.powersave) |
| smps_mode = IEEE80211_SMPS_OFF; |
| else |
| smps_mode = IEEE80211_SMPS_DYNAMIC; |
| } |
| |
| /* 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; |
| else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found) |
| ieee80211_teardown_tdls_peers(sdata); |
| |
| 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 (!ieee80211_hw_check(&local->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 */ |
| sdata_lock(sdata); |
| __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps); |
| sdata_unlock(sdata); |
| |
| if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS)) |
| ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); |
| |
| ieee80211_recalc_ps(local); |
| 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; |
| |
| if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER && |
| !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) |
| return -EOPNOTSUPP; |
| |
| bss_conf->cqm_rssi_thold = rssi_thold; |
| bss_conf->cqm_rssi_hyst = rssi_hyst; |
| sdata->u.mgd.last_cqm_event_signal = 0; |
| |
| /* 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 (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) { |
| ret = drv_set_bitrate_mask(local, sdata, mask); |
| if (ret) |
| return ret; |
| } |
| |
| for (i = 0; i < IEEE80211_NUM_BANDS; i++) { |
| struct ieee80211_supported_band *sband = wiphy->bands[i]; |
| int j; |
| |
| sdata->rc_rateidx_mask[i] = mask->control[i].legacy; |
| memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs, |
| sizeof(mask->control[i].ht_mcs)); |
| memcpy(sdata->rc_rateidx_vht_mcs_mask[i], |
| mask->control[i].vht_mcs, |
| sizeof(mask->control[i].vht_mcs)); |
| |
| sdata->rc_has_mcs_mask[i] = false; |
| sdata->rc_has_vht_mcs_mask[i] = false; |
| if (!sband) |
| continue; |
| |
| for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) { |
| if (~sdata->rc_rateidx_mcs_mask[i][j]) { |
| sdata->rc_has_mcs_mask[i] = true; |
| break; |
| } |
| } |
| |
| for (j = 0; j < NL80211_VHT_NSS_MAX; j++) { |
| if (~sdata->rc_rateidx_vht_mcs_mask[i][j]) { |
| sdata->rc_has_vht_mcs_mask[i] = true; |
| break; |
| } |
| } |
| } |
| |
| return 0; |
| } |
| |
| static int ieee80211_start_radar_detection(struct wiphy *wiphy, |
| struct net_device *dev, |
| struct cfg80211_chan_def *chandef, |
| u32 cac_time_ms) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| struct ieee80211_local *local = sdata->local; |
| int err; |
| |
| mutex_lock(&local->mtx); |
| if (!list_empty(&local->roc_list) || local->scanning) { |
| err = -EBUSY; |
| goto out_unlock; |
| } |
| |
| /* whatever, but channel contexts should not complain about that one */ |
| sdata->smps_mode = IEEE80211_SMPS_OFF; |
| sdata->needed_rx_chains = local->rx_chains; |
| |
| err = ieee80211_vif_use_channel(sdata, chandef, |
| IEEE80211_CHANCTX_SHARED); |
| if (err) |
| goto out_unlock; |
| |
| ieee80211_queue_delayed_work(&sdata->local->hw, |
| &sdata->dfs_cac_timer_work, |
| msecs_to_jiffies(cac_time_ms)); |
| |
| out_unlock: |
| mutex_unlock(&local->mtx); |
| return err; |
| } |
| |
| static struct cfg80211_beacon_data * |
| cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon) |
| { |
| struct cfg80211_beacon_data *new_beacon; |
| u8 *pos; |
| int len; |
| |
| len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len + |
| beacon->proberesp_ies_len + beacon->assocresp_ies_len + |
| beacon->probe_resp_len; |
| |
| new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL); |
| if (!new_beacon) |
| return NULL; |
| |
| pos = (u8 *)(new_beacon + 1); |
| if (beacon->head_len) { |
| new_beacon->head_len = beacon->head_len; |
| new_beacon->head = pos; |
| memcpy(pos, beacon->head, beacon->head_len); |
| pos += beacon->head_len; |
| } |
| if (beacon->tail_len) { |
| new_beacon->tail_len = beacon->tail_len; |
| new_beacon->tail = pos; |
| memcpy(pos, beacon->tail, beacon->tail_len); |
| pos += beacon->tail_len; |
| } |
| if (beacon->beacon_ies_len) { |
| new_beacon->beacon_ies_len = beacon->beacon_ies_len; |
| new_beacon->beacon_ies = pos; |
| memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len); |
| pos += beacon->beacon_ies_len; |
| } |
| if (beacon->proberesp_ies_len) { |
| new_beacon->proberesp_ies_len = beacon->proberesp_ies_len; |
| new_beacon->proberesp_ies = pos; |
| memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len); |
| pos += beacon->proberesp_ies_len; |
| } |
| if (beacon->assocresp_ies_len) { |
| new_beacon->assocresp_ies_len = beacon->assocresp_ies_len; |
| new_beacon->assocresp_ies = pos; |
| memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len); |
| pos += beacon->assocresp_ies_len; |
| } |
| if (beacon->probe_resp_len) { |
| new_beacon->probe_resp_len = beacon->probe_resp_len; |
| beacon->probe_resp = pos; |
| memcpy(pos, beacon->probe_resp, beacon->probe_resp_len); |
| pos += beacon->probe_resp_len; |
| } |
| |
| return new_beacon; |
| } |
| |
| void ieee80211_csa_finish(struct ieee80211_vif *vif) |
| { |
| struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); |
| |
| ieee80211_queue_work(&sdata->local->hw, |
| &sdata->csa_finalize_work); |
| } |
| EXPORT_SYMBOL(ieee80211_csa_finish); |
| |
| static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata, |
| u32 *changed) |
| { |
| int err; |
| |
| switch (sdata->vif.type) { |
| case NL80211_IFTYPE_AP: |
| err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon, |
| NULL); |
| kfree(sdata->u.ap.next_beacon); |
| sdata->u.ap.next_beacon = NULL; |
| |
| if (err < 0) |
| return err; |
| *changed |= err; |
| break; |
| case NL80211_IFTYPE_ADHOC: |
| err = ieee80211_ibss_finish_csa(sdata); |
| if (err < 0) |
| return err; |
| *changed |= err; |
| break; |
| #ifdef CPTCFG_MAC80211_MESH |
| case NL80211_IFTYPE_MESH_POINT: |
| err = ieee80211_mesh_finish_csa(sdata); |
| if (err < 0) |
| return err; |
| *changed |= err; |
| break; |
| #endif |
| default: |
| WARN_ON(1); |
| return -EINVAL; |
| } |
| |
| return 0; |
| } |
| |
| static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) |
| { |
| struct ieee80211_local *local = sdata->local; |
| u32 changed = 0; |
| int err; |
| |
| sdata_assert_lock(sdata); |
| lockdep_assert_held(&local->mtx); |
| lockdep_assert_held(&local->chanctx_mtx); |
| |
| /* |
| * using reservation isn't immediate as it may be deferred until later |
| * with multi-vif. once reservation is complete it will re-schedule the |
| * work with no reserved_chanctx so verify chandef to check if it |
| * completed successfully |
| */ |
| |
| if (sdata->reserved_chanctx) { |
| /* |
| * with multi-vif csa driver may call ieee80211_csa_finish() |
| * many times while waiting for other interfaces to use their |
| * reservations |
| */ |
| if (sdata->reserved_ready) |
| return 0; |
| |
| return ieee80211_vif_use_reserved_context(sdata); |
| } |
| |
| if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef, |
| &sdata->csa_chandef)) |
| return -EINVAL; |
| |
| sdata->vif.csa_active = false; |
| |
| err = ieee80211_set_after_csa_beacon(sdata, &changed); |
| if (err) |
| return err; |
| |
| ieee80211_bss_info_change_notify(sdata, changed); |
| |
| if (sdata->csa_block_tx) { |
| ieee80211_wake_vif_queues(local, sdata, |
| IEEE80211_QUEUE_STOP_REASON_CSA); |
| sdata->csa_block_tx = false; |
| } |
| |
| err = drv_post_channel_switch(sdata); |
| if (err) |
| return err; |
| |
| cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef); |
| |
| return 0; |
| } |
| |
| static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) |
| { |
| if (__ieee80211_csa_finalize(sdata)) { |
| sdata_info(sdata, "failed to finalize CSA, disconnecting\n"); |
| cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev, |
| GFP_KERNEL); |
| } |
| } |
| |
| void ieee80211_csa_finalize_work(struct work_struct *work) |
| { |
| struct ieee80211_sub_if_data *sdata = |
| container_of(work, struct ieee80211_sub_if_data, |
| csa_finalize_work); |
| struct ieee80211_local *local = sdata->local; |
| |
| sdata_lock(sdata); |
| mutex_lock(&local->mtx); |
| mutex_lock(&local->chanctx_mtx); |
| |
| /* AP might have been stopped while waiting for the lock. */ |
| if (!sdata->vif.csa_active) |
| goto unlock; |
| |
| if (!ieee80211_sdata_running(sdata)) |
| goto unlock; |
| |
| ieee80211_csa_finalize(sdata); |
| |
| unlock: |
| mutex_unlock(&local->chanctx_mtx); |
| mutex_unlock(&local->mtx); |
| sdata_unlock(sdata); |
| } |
| |
| static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata, |
| struct cfg80211_csa_settings *params, |
| u32 *changed) |
| { |
| struct ieee80211_csa_settings csa = {}; |
| int err; |
| |
| switch (sdata->vif.type) { |
| case NL80211_IFTYPE_AP: |
| sdata->u.ap.next_beacon = |
| cfg80211_beacon_dup(¶ms->beacon_after); |
| if (!sdata->u.ap.next_beacon) |
| return -ENOMEM; |
| |
| /* |
| * With a count of 0, we don't have to wait for any |
| * TBTT before switching, so complete the CSA |
| * immediately. In theory, with a count == 1 we |
| * should delay the switch until just before the next |
| * TBTT, but that would complicate things so we switch |
| * immediately too. If we would delay the switch |
| * until the next TBTT, we would have to set the probe |
| * response here. |
| * |
| * TODO: A channel switch with count <= 1 without |
| * sending a CSA action frame is kind of useless, |
| * because the clients won't know we're changing |
| * channels. The action frame must be implemented |
| * either here or in the userspace. |
| */ |
| if (params->count <= 1) |
| break; |
| |
| if ((params->n_counter_offsets_beacon > |
| IEEE80211_MAX_CSA_COUNTERS_NUM) || |
| (params->n_counter_offsets_presp > |
| IEEE80211_MAX_CSA_COUNTERS_NUM)) |
| return -EINVAL; |
| |
| csa.counter_offsets_beacon = params->counter_offsets_beacon; |
| csa.counter_offsets_presp = params->counter_offsets_presp; |
| csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon; |
| csa.n_counter_offsets_presp = params->n_counter_offsets_presp; |
| csa.count = params->count; |
| |
| err = ieee80211_assign_beacon(sdata, ¶ms->beacon_csa, &csa); |
| if (err < 0) { |
| kfree(sdata->u.ap.next_beacon); |
| return err; |
| } |
| *changed |= err; |
| |
| break; |
| case NL80211_IFTYPE_ADHOC: |
| if (!sdata->vif.bss_conf.ibss_joined) |
| return -EINVAL; |
| |
| if (params->chandef.width != sdata->u.ibss.chandef.width) |
| return -EINVAL; |
| |
| switch (params->chandef.width) { |
| case NL80211_CHAN_WIDTH_40: |
| if (cfg80211_get_chandef_type(¶ms->chandef) != |
| cfg80211_get_chandef_type(&sdata->u.ibss.chandef)) |
| return -EINVAL; |
| case NL80211_CHAN_WIDTH_5: |
| case NL80211_CHAN_WIDTH_10: |
| case NL80211_CHAN_WIDTH_20_NOHT: |
| case NL80211_CHAN_WIDTH_20: |
| break; |
| default: |
| return -EINVAL; |
| } |
| |
| /* changes into another band are not supported */ |
| if (sdata->u.ibss.chandef.chan->band != |
| params->chandef.chan->band) |
| return -EINVAL; |
| |
| /* see comments in the NL80211_IFTYPE_AP block */ |
| if (params->count > 1) { |
| err = ieee80211_ibss_csa_beacon(sdata, params); |
| if (err < 0) |
| return err; |
| *changed |= err; |
| } |
| |
| ieee80211_send_action_csa(sdata, params); |
| |
| break; |
| #ifdef CPTCFG_MAC80211_MESH |
| case NL80211_IFTYPE_MESH_POINT: { |
| struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; |
| |
| if (params->chandef.width != sdata->vif.bss_conf.chandef.width) |
| return -EINVAL; |
| |
| /* changes into another band are not supported */ |
| if (sdata->vif.bss_conf.chandef.chan->band != |
| params->chandef.chan->band) |
| return -EINVAL; |
| |
| if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) { |
| ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT; |
| if (!ifmsh->pre_value) |
| ifmsh->pre_value = 1; |
| else |
| ifmsh->pre_value++; |
| } |
| |
| /* see comments in the NL80211_IFTYPE_AP block */ |
| if (params->count > 1) { |
| err = ieee80211_mesh_csa_beacon(sdata, params); |
| if (err < 0) { |
| ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE; |
| return err; |
| } |
| *changed |= err; |
| } |
| |
| if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT) |
| ieee80211_send_action_csa(sdata, params); |
| |
| break; |
| } |
| #endif |
| default: |
| return -EOPNOTSUPP; |
| } |
| |
| return 0; |
| } |
| |
| static int |
| __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, |
| struct cfg80211_csa_settings *params) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| struct ieee80211_local *local = sdata->local; |
| struct ieee80211_channel_switch ch_switch; |
| struct ieee80211_chanctx_conf *conf; |
| struct ieee80211_chanctx *chanctx; |
| u32 changed = 0; |
| int err; |
| |
| sdata_assert_lock(sdata); |
| lockdep_assert_held(&local->mtx); |
| |
| if (!list_empty(&local->roc_list) || local->scanning) |
| return -EBUSY; |
| |
| if (sdata->wdev.cac_started) |
| return -EBUSY; |
| |
| if (cfg80211_chandef_identical(¶ms->chandef, |
| &sdata->vif.bss_conf.chandef)) |
| return -EINVAL; |
| |
| /* don't allow another channel switch if one is already active. */ |
| if (sdata->vif.csa_active) |
| return -EBUSY; |
| |
| mutex_lock(&local->chanctx_mtx); |
| conf = rcu_dereference_protected(sdata->vif.chanctx_conf, |
| lockdep_is_held(&local->chanctx_mtx)); |
| if (!conf) { |
| err = -EBUSY; |
| goto out; |
| } |
| |
| chanctx = container_of(conf, struct ieee80211_chanctx, conf); |
| if (!chanctx) { |
| err = -EBUSY; |
| goto out; |
| } |
| |
| ch_switch.timestamp = 0; |
| ch_switch.device_timestamp = 0; |
| ch_switch.block_tx = params->block_tx; |
| ch_switch.chandef = params->chandef; |
| ch_switch.count = params->count; |
| |
| err = drv_pre_channel_switch(sdata, &ch_switch); |
| if (err) |
| goto out; |
| |
| err = ieee80211_vif_reserve_chanctx(sdata, ¶ms->chandef, |
| chanctx->mode, |
| params->radar_required); |
| if (err) |
| goto out; |
| |
| /* if reservation is invalid then this will fail */ |
| err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0); |
| if (err) { |
| ieee80211_vif_unreserve_chanctx(sdata); |
| goto out; |
| } |
| |
| err = ieee80211_set_csa_beacon(sdata, params, &changed); |
| if (err) { |
| ieee80211_vif_unreserve_chanctx(sdata); |
| goto out; |
| } |
| |
| sdata->csa_chandef = params->chandef; |
| sdata->csa_block_tx = params->block_tx; |
| sdata->vif.csa_active = true; |
| |
| if (sdata->csa_block_tx) |
| ieee80211_stop_vif_queues(local, sdata, |
| IEEE80211_QUEUE_STOP_REASON_CSA); |
| |
| cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef, |
| params->count); |
| |
| if (changed) { |
| ieee80211_bss_info_change_notify(sdata, changed); |
| drv_channel_switch_beacon(sdata, ¶ms->chandef); |
| } else { |
| /* if the beacon didn't change, we can finalize immediately */ |
| ieee80211_csa_finalize(sdata); |
| } |
| |
| out: |
| mutex_unlock(&local->chanctx_mtx); |
| return err; |
| } |
| |
| int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, |
| struct cfg80211_csa_settings *params) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| struct ieee80211_local *local = sdata->local; |
| int err; |
| |
| mutex_lock(&local->mtx); |
| err = __ieee80211_channel_switch(wiphy, dev, params); |
| mutex_unlock(&local->mtx); |
| |
| return err; |
| } |
| |
| u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local) |
| { |
| lockdep_assert_held(&local->mtx); |
| |
| local->roc_cookie_counter++; |
| |
| /* wow, you wrapped 64 bits ... more likely a bug */ |
| if (WARN_ON(local->roc_cookie_counter == 0)) |