diff options
| author | David S. Miller <davem@davemloft.net> | 2017-04-28 14:41:15 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-04-28 14:41:15 -0400 |
| commit | cec381919818a9a0cb85600b3c82404bdd38cf36 (patch) | |
| tree | bd6bbd9b5d777ed223476d5f7304d6197413a543 /net | |
| parent | 2d2ab658d2debcb4c0e29c9e6f18e5683f3077bf (diff) | |
| parent | b34939b9836950d261610132853311054b507247 (diff) | |
Merge tag 'mac80211-next-for-davem-2017-04-28' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next
Johannes Berg says:
====================
Another set of patches for -next:
* API support for concurrent scheduled scan requests
* API changes for roaming reporting
* BSS max idle support in mac80211
* API changes for TX status reporting in mac80211
* API changes for RX rate reporting in mac80211
* rewrite monitor logic to prepare for BPF filters
* bugfix for rare devices without 2.4 GHz support
* a bugfix for recent DFS changes
* some further cleanups
The API changes are actually at a nice time, since it's
typically quiet just before the merge window, and trees
can be synchronized easily during it.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
30 files changed, 869 insertions, 613 deletions
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index d041f78ecee6..6c2e6060cd54 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -660,10 +660,11 @@ void sta_set_rate_info_tx(struct sta_info *sta, 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); + sband = ieee80211_get_sband(sta->sdata); + if (sband) { + 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; @@ -739,11 +740,8 @@ static int ieee80211_set_monitor_channel(struct wiphy *wiphy, 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)); + sdata = rtnl_dereference(local->monitor_sdata); if (sdata) { ieee80211_vif_release_channel(sdata); ret = ieee80211_vif_use_channel(sdata, chandef, @@ -756,7 +754,6 @@ static int ieee80211_set_monitor_channel(struct wiphy *wiphy, if (ret == 0) local->monitor_chandef = *chandef; - mutex_unlock(&local->iflist_mtx); mutex_unlock(&local->mtx); return ret; @@ -1257,10 +1254,11 @@ static int sta_apply_parameters(struct ieee80211_local *local, int ret = 0; struct ieee80211_supported_band *sband; struct ieee80211_sub_if_data *sdata = sta->sdata; - enum nl80211_band band = ieee80211_get_sdata_band(sdata); u32 mask, set; - sband = local->hw.wiphy->bands[band]; + sband = ieee80211_get_sband(sdata); + if (!sband) + return -EINVAL; mask = params->sta_flags_mask; set = params->sta_flags_set; @@ -1393,7 +1391,7 @@ static int sta_apply_parameters(struct ieee80211_local *local, ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, sband, params->supported_rates, params->supported_rates_len, - &sta->sta.supp_rates[band]); + &sta->sta.supp_rates[sband->band]); } if (params->ht_capa) @@ -1409,8 +1407,8 @@ static int sta_apply_parameters(struct ieee80211_local *local, /* 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); + __ieee80211_vht_handle_opmode(sdata, sta, params->opmode_notif, + sband->band); } if (params->support_p2p_ps >= 0) @@ -2048,13 +2046,15 @@ static int ieee80211_change_bss(struct wiphy *wiphy, struct bss_parameters *params) { struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - enum nl80211_band band; + struct ieee80211_supported_band *sband; u32 changed = 0; if (!sdata_dereference(sdata->u.ap.beacon, sdata)) return -ENOENT; - band = ieee80211_get_sdata_band(sdata); + sband = ieee80211_get_sband(sdata); + if (!sband) + return -EINVAL; if (params->use_cts_prot >= 0) { sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot; @@ -2067,7 +2067,7 @@ static int ieee80211_change_bss(struct wiphy *wiphy, } if (!sdata->vif.bss_conf.use_short_slot && - band == NL80211_BAND_5GHZ) { + sband->band == NL80211_BAND_5GHZ) { sdata->vif.bss_conf.use_short_slot = true; changed |= BSS_CHANGED_ERP_SLOT; } @@ -2080,7 +2080,7 @@ static int ieee80211_change_bss(struct wiphy *wiphy, if (params->basic_rates) { ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, - wiphy->bands[band], + wiphy->bands[sband->band], params->basic_rates, params->basic_rates_len, &sdata->vif.bss_conf.basic_rates); @@ -2242,7 +2242,8 @@ ieee80211_sched_scan_start(struct wiphy *wiphy, } static int -ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev) +ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev, + u64 reqid) { struct ieee80211_local *local = wiphy_priv(wiphy); diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c index e957351976a2..6db09fa18269 100644 --- a/net/mac80211/ibss.c +++ b/net/mac80211/ibss.c @@ -992,7 +992,7 @@ static void ieee80211_update_sta_info(struct ieee80211_sub_if_data *sdata, enum nl80211_band band = rx_status->band; enum nl80211_bss_scan_width scan_width; struct ieee80211_local *local = sdata->local; - struct ieee80211_supported_band *sband = local->hw.wiphy->bands[band]; + struct ieee80211_supported_band *sband; bool rates_updated = false; u32 supp_rates = 0; @@ -1002,6 +1002,10 @@ static void ieee80211_update_sta_info(struct ieee80211_sub_if_data *sdata, if (!ether_addr_equal(mgmt->bssid, sdata->u.ibss.bssid)) return; + sband = local->hw.wiphy->bands[band]; + if (WARN_ON(!sband)) + return; + rcu_read_lock(); sta = sta_info_get(sdata, mgmt->sa); @@ -1014,9 +1018,9 @@ static void ieee80211_update_sta_info(struct ieee80211_sub_if_data *sdata, prev_rates = sta->sta.supp_rates[band]; /* make sure mandatory rates are always added */ scan_width = NL80211_BSS_CHAN_WIDTH_20; - if (rx_status->flag & RX_FLAG_5MHZ) + if (rx_status->bw == RATE_INFO_BW_5) scan_width = NL80211_BSS_CHAN_WIDTH_5; - if (rx_status->flag & RX_FLAG_10MHZ) + else if (rx_status->bw == RATE_INFO_BW_10) scan_width = NL80211_BSS_CHAN_WIDTH_10; sta->sta.supp_rates[band] = supp_rates | diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index cf6d5abb65a3..f8f6c148f554 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -1001,21 +1001,6 @@ sdata_assert_lock(struct ieee80211_sub_if_data *sdata) lockdep_assert_held(&sdata->wdev.mtx); } -static inline enum nl80211_band -ieee80211_get_sdata_band(struct ieee80211_sub_if_data *sdata) -{ - enum nl80211_band band = NL80211_BAND_2GHZ; - struct ieee80211_chanctx_conf *chanctx_conf; - - rcu_read_lock(); - chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); - if (!WARN_ON(!chanctx_conf)) - band = chanctx_conf->def.chan->band; - rcu_read_unlock(); - - return band; -} - static inline int ieee80211_chandef_get_shift(struct cfg80211_chan_def *chandef) { @@ -1421,6 +1406,27 @@ IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev *wdev) return container_of(wdev, struct ieee80211_sub_if_data, wdev); } +static inline struct ieee80211_supported_band * +ieee80211_get_sband(struct ieee80211_sub_if_data *sdata) +{ + struct ieee80211_local *local = sdata->local; + struct ieee80211_chanctx_conf *chanctx_conf; + enum nl80211_band band; + + rcu_read_lock(); + chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); + + if (WARN_ON(!chanctx_conf)) { + rcu_read_unlock(); + return NULL; + } + + band = chanctx_conf->def.chan->band; + rcu_read_unlock(); + + return local->hw.wiphy->bands[band]; +} + /* this struct represents 802.11n's RA/TID combination */ struct ieee80211_ra_tid { u8 ra[ETH_ALEN]; @@ -1477,6 +1483,7 @@ struct ieee802_11_elems { const u8 *opmode_notif; const struct ieee80211_sec_chan_offs_ie *sec_chan_offs; const struct ieee80211_mesh_chansw_params_ie *mesh_chansw_params_ie; + const struct ieee80211_bss_max_idle_period_ie *max_idle_period_ie; /* length of them, respectively */ u8 ext_capab_len; @@ -1530,9 +1537,9 @@ ieee80211_have_rx_timestamp(struct ieee80211_rx_status *status) status->flag & RX_FLAG_MACTIME_END); if (status->flag & (RX_FLAG_MACTIME_START | RX_FLAG_MACTIME_END)) return true; - /* can't handle HT/VHT preamble yet */ + /* can't handle non-legacy preamble yet */ if (status->flag & RX_FLAG_MACTIME_PLCP_START && - !(status->flag & (RX_FLAG_HT | RX_FLAG_VHT))) + status->encoding != RX_ENC_LEGACY) return true; return false; } diff --git a/net/mac80211/main.c b/net/mac80211/main.c index ae408a96c407..8aa1f5b6a051 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -253,6 +253,7 @@ static void ieee80211_restart_work(struct work_struct *work) WARN(test_bit(SCAN_HW_SCANNING, &local->scanning), "%s called with hardware scan in progress\n", __func__); + flush_work(&local->radar_detected_work); rtnl_lock(); list_for_each_entry(sdata, &local->interfaces, list) flush_delayed_work(&sdata->dec_tailroom_needed_wk); @@ -1187,6 +1188,7 @@ void ieee80211_unregister_hw(struct ieee80211_hw *hw) cancel_work_sync(&local->reconfig_filter); cancel_work_sync(&local->tdls_chsw_work); flush_work(&local->sched_scan_stopped_work); + flush_work(&local->radar_detected_work); ieee80211_clear_tx_pending(local); rate_control_deinitialize(local); diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c index 281d834c7548..737e1f082b0d 100644 --- a/net/mac80211/mesh.c +++ b/net/mac80211/mesh.c @@ -63,6 +63,7 @@ bool mesh_matches_local(struct ieee80211_sub_if_data *sdata, struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; u32 basic_rates = 0; struct cfg80211_chan_def sta_chan_def; + struct ieee80211_supported_band *sband; /* * As support for each feature is added, check for matching @@ -83,7 +84,11 @@ bool mesh_matches_local(struct ieee80211_sub_if_data *sdata, (ifmsh->mesh_auth_id == ie->mesh_config->meshconf_auth))) return false; - ieee80211_sta_get_rates(sdata, ie, ieee80211_get_sdata_band(sdata), + sband = ieee80211_get_sband(sdata); + if (!sband) + return false; + + ieee80211_sta_get_rates(sdata, ie, sband->band, &basic_rates); if (sdata->vif.bss_conf.basic_rates != basic_rates) @@ -399,12 +404,13 @@ static int mesh_add_ds_params_ie(struct ieee80211_sub_if_data *sdata, int mesh_add_ht_cap_ie(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb) { - struct ieee80211_local *local = sdata->local; - enum nl80211_band band = ieee80211_get_sdata_band(sdata); struct ieee80211_supported_band *sband; u8 *pos; - sband = local->hw.wiphy->bands[band]; + sband = ieee80211_get_sband(sdata); + if (!sband) + return -EINVAL; + if (!sband->ht_cap.ht_supported || sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT || sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_5 || @@ -462,12 +468,13 @@ int mesh_add_ht_oper_ie(struct ieee80211_sub_if_data *sdata, int mesh_add_vht_cap_ie(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb) { - struct ieee80211_local *local = sdata->local; - enum nl80211_band band = ieee80211_get_sdata_band(sdata); struct ieee80211_supported_band *sband; u8 *pos; - sband = local->hw.wiphy->bands[band]; + sband = ieee80211_get_sband(sdata); + if (!sband) + return -EINVAL; + if (!sband->vht_cap.vht_supported || sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT || sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_5 || @@ -916,12 +923,16 @@ ieee80211_mesh_process_chnswitch(struct ieee80211_sub_if_data *sdata, struct cfg80211_csa_settings params; struct ieee80211_csa_ie csa_ie; struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; - enum nl80211_band band = ieee80211_get_sdata_band(sdata); + struct ieee80211_supported_band *sband; int err; u32 sta_flags; sdata_assert_lock(sdata); + sband = ieee80211_get_sband(sdata); + if (!sband) + return false; + sta_flags = IEEE80211_STA_DISABLE_VHT; switch (sdata->vif.bss_conf.chandef.width) { case NL80211_CHAN_WIDTH_20_NOHT: @@ -935,7 +946,7 @@ ieee80211_mesh_process_chnswitch(struct ieee80211_sub_if_data *sdata, memset(¶ms, 0, sizeof(params)); memset(&csa_ie, 0, sizeof(csa_ie)); - err = ieee80211_parse_ch_switch_ie(sdata, elems, band, + err = ieee80211_parse_ch_switch_ie(sdata, elems, sband->band, sta_flags, sdata->vif.addr, &csa_ie); if (err < 0) diff --git a/net/mac80211/mesh_plink.c b/net/mac80211/mesh_plink.c index 953d71e784a9..1131cd504a15 100644 --- a/net/mac80211/mesh_plink.c +++ b/net/mac80211/mesh_plink.c @@ -95,19 +95,23 @@ static inline void mesh_plink_fsm_restart(struct sta_info *sta) static u32 mesh_set_short_slot_time(struct ieee80211_sub_if_data *sdata) { struct ieee80211_local *local = sdata->local; - enum nl80211_band band = ieee80211_get_sdata_band(sdata); - struct ieee80211_supported_band *sband = local->hw.wiphy->bands[band]; + struct ieee80211_supported_band *sband; struct sta_info *sta; u32 erp_rates = 0, changed = 0; int i; bool short_slot = false; - if (band == NL80211_BAND_5GHZ) { + sband = ieee80211_get_sband(sdata); + if (!sband) + return changed; + + if (sband->band == NL80211_BAND_5GHZ) { /* (IEEE 802.11-2012 19.4.5) */ short_slot = true; goto out; - } else if (band != NL80211_BAND_2GHZ) + } else if (sband->band != NL80211_BAND_2GHZ) { goto out; + } for (i = 0; i < sband->n_bitrates; i++) if (sband->bitrates[i].flags & IEEE80211_RATE_ERP_G) @@ -123,7 +127,7 @@ static u32 mesh_set_short_slot_time(struct ieee80211_sub_if_data *sdata) continue; short_slot = false; - if (erp_rates & sta->sta.supp_rates[band]) + if (erp_rates & sta->sta.supp_rates[sband->band]) short_slot = true; else break; @@ -249,7 +253,15 @@ static int mesh_plink_frame_tx(struct ieee80211_sub_if_data *sdata, mgmt->u.action.u.self_prot.action_code = action; if (action != WLAN_SP_MESH_PEERING_CLOSE) { - enum nl80211_band band = ieee80211_get_sdata_band(sdata); + struct ieee80211_supported_band *sband; + enum nl80211_band band; + + sband = ieee80211_get_sband(sdata); + if (!sband) { + err = -EINVAL; + goto free; + } + band = sband->band; /* capability info */ pos = skb_put(skb, 2); @@ -395,13 +407,16 @@ static void mesh_sta_info_init(struct ieee80211_sub_if_data *sdata, struct ieee802_11_elems *elems, bool insert) { struct ieee80211_local *local = sdata->local; - enum nl80211_band band = ieee80211_get_sdata_band(sdata); struct ieee80211_supported_band *sband; u32 rates, basic_rates = 0, changed = 0; enum ieee80211_sta_rx_bandwidth bw = sta->sta.bandwidth; - sband = local->hw.wiphy->bands[band]; - rates = ieee80211_sta_get_rates(sdata, elems, band, &basic_rates); + sband = ieee80211_get_sband(sdata); + if (!sband) + return; + + rates = ieee80211_sta_get_rates(sdata, elems, sband->band, + &basic_rates); spin_lock_bh(&sta->mesh->plink_lock); sta->rx_stats.last_rx = jiffies; @@ -412,9 +427,9 @@ static void mesh_sta_info_init(struct ieee80211_sub_if_data *sdata, goto out; sta->mesh->processed_beacon = true; - if (sta->sta.supp_rates[band] != rates) + if (sta->sta.supp_rates[sband->band] != rates) changed |= IEEE80211_RC_SUPP_RATES_CHANGED; - sta->sta.supp_rates[band] = rates; + sta->sta.supp_rates[sband->band] = rates; if (ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, elems->ht_cap_elem, sta)) diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index 24d69bcf71ad..89dff563b1ec 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -6,7 +6,7 @@ * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz> * Copyright 2007, Michael Wu <flamingice@sourmilk.net> * Copyright 2013-2014 Intel Mobile Communications GmbH - * Copyright (C) 2015 - 2016 Intel Deutschland GmbH + * Copyright (C) 2015 - 2017 Intel Deutschland GmbH * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -1855,11 +1855,16 @@ static u32 ieee80211_handle_bss_capability(struct ieee80211_sub_if_data *sdata, u16 capab, bool erp_valid, u8 erp) { struct ieee80211_bss_conf *bss_conf = &sdata->vif.bss_conf; + struct ieee80211_supported_band *sband; u32 changed = 0; bool use_protection; bool use_short_preamble; bool use_short_slot; + sband = ieee80211_get_sband(sdata); + if (!sband) + return changed; + if (erp_valid) { use_protection = (erp & WLAN_ERP_USE_PROTECTION) != 0; use_short_preamble = (erp & WLAN_ERP_BARKER_PREAMBLE) == 0; @@ -1869,7 +1874,7 @@ static u32 ieee80211_handle_bss_capability(struct ieee80211_sub_if_data *sdata, } use_short_slot = !!(capab & WLAN_CAPABILITY_SHORT_SLOT_TIME); - if (ieee80211_get_sdata_band(sdata) == NL80211_BAND_5GHZ) + if (sband->band == NL80211_BAND_5GHZ) use_short_slot = true; if (use_protection != bss_conf->use_cts_prot) { @@ -3004,7 +3009,12 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata, goto out; } - sband = local->hw.wiphy->bands[ieee80211_get_sdata_band(sdata)]; + sband = ieee80211_get_sband(sdata); + if (!sband) { + mutex_unlock(&sdata->local->sta_mtx); + ret = false; + goto out; + } /* Set up internal HT/VHT capabilities */ if (elems.ht_cap_elem && !(ifmgd->flags & IEEE80211_STA_DISABLE_HT)) @@ -3088,6 +3098,18 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata, } changed |= BSS_CHANGED_QOS; + if (elems.max_idle_period_ie) { + bss_conf->max_idle_period = + le16_to_cpu(elems.max_idle_period_ie->max_idle_period); + bss_conf->protected_keep_alive = + !!(elems.max_idle_period_ie->idle_options & + WLAN_IDLE_OPTIONS_PROTECTED_KEEP_ALIVE); + changed |= BSS_CHANGED_KEEP_ALIVE; + } else { + bss_conf->max_idle_period = 0; + bss_conf->protected_keep_alive = false; + } + /* set AID and assoc capability, * ieee80211_set_associated() will tell the driver */ bss_conf->aid = aid; diff --git a/net/mac80211/pm.c b/net/mac80211/pm.c index 76a8bcd8ef11..a87d195c4a61 100644 --- a/net/mac80211/pm.c +++ b/net/mac80211/pm.c @@ -10,7 +10,7 @@ static void ieee80211_sched_scan_cancel(struct ieee80211_local *local) { if (ieee80211_request_sched_scan_stop(local)) return; - cfg80211_sched_scan_stopped_rtnl(local->hw.wiphy); + cfg80211_sched_scan_stopped_rtnl(local->hw.wiphy, 0); } int __ieee80211_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan) diff --git a/net/mac80211/rate.c b/net/mac80211/rate.c index 9d7a1cd949fb..ea1f4315c521 100644 --- a/net/mac80211/rate.c +++ b/net/mac80211/rate.c @@ -62,6 +62,28 @@ void rate_control_rate_init(struct sta_info *sta) set_sta_flag(sta, WLAN_STA_RATE_CONTROL); } +void rate_control_tx_status(struct ieee80211_local *local, + struct ieee80211_supported_band *sband, + struct ieee80211_tx_status *st) +{ + struct rate_control_ref *ref = local->rate_ctrl; + struct sta_info *sta = container_of(st->sta, struct sta_info, sta); + void *priv_sta = sta->rate_ctrl_priv; + + if (!ref || !test_sta_flag(sta, WLAN_STA_RATE_CONTROL)) + return; + + spin_lock_bh(&sta->rate_ctrl_lock); + if (ref->ops->tx_status_ext) + ref->ops->tx_status_ext(ref->priv, sband, priv_sta, st); + else if (st->skb) + ref->ops->tx_status(ref->priv, sband, st->sta, priv_sta, st->skb); + else + WARN_ON_ONCE(1); + + spin_unlock_bh(&sta->rate_ctrl_lock); +} + void rate_control_rate_update(struct ieee80211_local *local, struct ieee80211_supported_band *sband, struct sta_info *sta, u32 changed) @@ -904,7 +926,9 @@ int rate_control_set_rates(struct ieee80211_hw *hw, struct ieee80211_sta_rates *old; struct ieee80211_supported_band *sband; - sband = hw->wiphy->bands[ieee80211_get_sdata_band(sta->sdata)]; + sband = ieee80211_get_sband(sta->sdata); + if (!sband) + return -EINVAL; rate_control_apply_mask_ratetbl(sta, sband, rates); /* * mac80211 guarantees that this function will not be called diff --git a/net/mac80211/rate.h b/net/mac80211/rate.h index f7825ef5f871..8212bfeb71d6 100644 --- a/net/mac80211/rate.h +++ b/net/mac80211/rate.h @@ -28,47 +28,9 @@ void rate_control_get_rate(struct ieee80211_sub_if_data *sdata, struct sta_info *sta, struct ieee80211_tx_rate_control *txrc); -static inline void rate_control_tx_status(struct ieee80211_local *local, - struct ieee80211_supported_band *sband, - struct sta_info *sta, - struct sk_buff *skb) -{ - struct rate_control_ref *ref = local->rate_ctrl; - struct ieee80211_sta *ista = &sta->sta; - void *priv_sta = sta->rate_ctrl_priv; - struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); - - if (!ref || !test_sta_flag(sta, WLAN_STA_RATE_CONTROL)) - return; - - spin_lock_bh(&sta->rate_ctrl_lock); - if (ref->ops->tx_status) - ref->ops->tx_status(ref->priv, sband, ista, priv_sta, skb); - else - ref->ops->tx_status_noskb(ref->priv, sband, ista, priv_sta, info); - spin_unlock_bh(&sta->rate_ctrl_lock); -} - -static inline void -rate_control_tx_status_noskb(struct ieee80211_local *local, - struct ieee80211_supported_band *sband, - struct sta_info *sta, - struct ieee80211_tx_info *info) -{ - struct rate_control_ref *ref = local->rate_ctrl; - struct ieee80211_sta *ista = &sta->sta; - void *priv_sta = sta->rate_ctrl_priv; - - if (!ref || !test_sta_flag(sta, WLAN_STA_RATE_CONTROL)) - return; - - if (WARN_ON_ONCE(!ref->ops->tx_status_noskb)) - return; - - spin_lock_bh(&sta->rate_ctrl_lock); - ref->ops->tx_status_noskb(ref->priv, sband, ista, priv_sta, info); - spin_unlock_bh(&sta->rate_ctrl_lock); -} +void rate_control_tx_status(struct ieee80211_local *local, + struct ieee80211_supported_band *sband, + struct ieee80211_tx_status *st); void rate_control_rate_init(struct sta_info *sta); void rate_control_rate_update(struct ieee80211_local *local, diff --git a/net/mac80211/rc80211_minstrel.c b/net/mac80211/rc80211_minstrel.c index 3ebe4405a2d4..9766c1cc4b0a 100644 --- a/net/mac80211/rc80211_minstrel.c +++ b/net/mac80211/rc80211_minstrel.c @@ -264,9 +264,9 @@ minstrel_update_stats(struct minstrel_priv *mp, struct minstrel_sta_info *mi) static void minstrel_tx_status(void *priv, struct ieee80211_supported_band *sband, - struct ieee80211_sta *sta, void *priv_sta, - struct ieee80211_tx_info *info) + void *priv_sta, struct ieee80211_tx_status *st) { + struct ieee80211_tx_info *info = st->info; struct minstrel_priv *mp = priv; struct minstrel_sta_info *mi = priv_sta; struct ieee80211_tx_rate *ar = info->status.rates; @@ -726,7 +726,7 @@ static u32 minstrel_get_expected_throughput(void *priv_sta) const struct rate_control_ops mac80211_minstrel = { .name = "minstrel", - .tx_status_noskb = minstrel_tx_status, + .tx_status_ext = minstrel_tx_status, .get_rate = minstrel_get_rate, .rate_init = minstrel_rate_init, .alloc = minstrel_alloc, diff --git a/net/mac80211/rc80211_minstrel_ht.c b/net/mac80211/rc80211_minstrel_ht.c index 8e783e197e93..4a5bdad9f303 100644 --- a/net/mac80211/rc80211_minstrel_ht.c +++ b/net/mac80211/rc80211_minstrel_ht.c @@ -678,9 +678,9 @@ minstrel_aggr_check(struct ieee80211_sta *pubsta, struct sk_buff *skb) static void minstrel_ht_tx_status(void *priv, struct ieee80211_supported_band *sband, - struct ieee80211_sta *sta, void *priv_sta, - struct ieee80211_tx_info *info) + void *priv_sta, struct ieee80211_tx_status *st) { + struct ieee80211_tx_info *info = st->info; struct minstrel_ht_sta_priv *msp = priv_sta; struct minstrel_ht_sta *mi = &msp->ht; struct ieee80211_tx_rate *ar = info->status.rates; @@ -690,8 +690,8 @@ minstrel_ht_tx_status(void *priv, struct ieee80211_supported_band *sband, int i; if (!msp->is_ht) - return mac80211_minstrel.tx_status_noskb(priv, sband, sta, - &msp->legacy, info); + return mac80211_minstrel.tx_status_ext(priv, sband, + &msp->legacy, st); /* This packet was aggregated but doesn't carry status info */ if ((info->flags & IEEE80211_TX_CTL_AMPDU) && @@ -1374,7 +1374,7 @@ static u32 minstrel_ht_get_expected_throughput(void *priv_sta) static const struct rate_control_ops mac80211_minstrel_ht = { .name = "minstrel_ht", - .tx_status_noskb = minstrel_ht_tx_status, + .tx_status_ext = minstrel_ht_tx_status, .get_rate = minstrel_ht_get_rate, .rate_init = minstrel_ht_rate_init, .rate_update = minstrel_ht_rate_update, diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index 2142074d9fb0..35f4c7d7a500 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -156,7 +156,7 @@ ieee80211_rx_radiotap_hdrlen(struct ieee80211_local *local, /* padding for RX_FLAGS if necessary */ len = ALIGN(len, 2); - if (status->flag & RX_FLAG_HT) /* HT info */ + if (status->encoding == RX_ENC_HT) /* HT info */ len += 3; if (status->flag & RX_FLAG_AMPDU_DETAILS) { @@ -164,7 +164,7 @@ ieee80211_rx_radiotap_hdrlen(struct ieee80211_local *local, len += 8; } - if (status->flag & RX_FLAG_VHT) { + if (status->encoding == RX_ENC_VHT) { len = ALIGN(len, 2); len += 12; } @@ -329,12 +329,12 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local, *pos |= IEEE80211_RADIOTAP_F_FCS; if (status->flag & (RX_FLAG_FAILED_FCS_CRC | RX_FLAG_FAILED_PLCP_CRC)) *pos |= IEEE80211_RADIOTAP_F_BADFCS; - if (status->flag & RX_FLAG_SHORTPRE) + if (status->enc_flags & RX_ENC_FLAG_SHORTPRE) *pos |= IEEE80211_RADIOTAP_F_SHORTPRE; pos++; /* IEEE80211_RADIOTAP_RATE */ - if (!rate || status->flag & (RX_FLAG_HT | RX_FLAG_VHT)) { + if (!rate || status->encoding != RX_ENC_LEGACY) { /* * Without rate information don't add it. If we have, * MCS information is a separate field in radiotap, @@ -345,9 +345,9 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local, } else { int shift = 0; rthdr->it_present |= cpu_to_le32(1 << IEEE80211_RADIOTAP_RATE); - if (status->flag & RX_FLAG_10MHZ) + if (status->bw == RATE_INFO_BW_10) shift = 1; - else if (status->flag & RX_FLAG_5MHZ) + else if (status->bw == RATE_INFO_BW_5) shift = 2; *pos = DIV_ROUND_UP(rate->bitrate, 5 * (1 << shift)); } @@ -356,14 +356,14 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local, /* IEEE80211_RADIOTAP_CHANNEL */ put_unaligned_le16(status->freq, pos); pos += 2; - if (status->flag & RX_FLAG_10MHZ) + if (status->bw == RATE_INFO_BW_10) channel_flags |= IEEE80211_CHAN_HALF; - else if (status->flag & RX_FLAG_5MHZ) + else if (status->bw == RATE_INFO_BW_5) channel_flags |= IEEE80211_CHAN_QUARTER; if (status->band == NL80211_BAND_5GHZ) channel_flags |= IEEE80211_CHAN_OFDM | IEEE80211_CHAN_5GHZ; - else if (status->flag & (RX_FLAG_HT | RX_FLAG_VHT)) + else if (status->encoding != RX_ENC_LEGACY) channel_flags |= IEEE80211_CHAN_DYN | IEEE80211_CHAN_2GHZ; else if (rate && rate->flags & IEEE80211_RATE_ERP_G) channel_flags |= IEEE80211_CHAN_OFDM | IEEE80211_CHAN_2GHZ; @@ -402,21 +402,21 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local, put_unaligned_le16(rx_flags, pos); pos += 2; - if (status->flag & RX_FLAG_HT) { + if (status->encoding == RX_ENC_HT) { unsigned int stbc; rthdr->it_present |= cpu_to_le32(1 << IEEE80211_RADIOTAP_MCS); *pos++ = local->hw.radiotap_mcs_details; *pos = 0; - if (status->flag & RX_FLAG_SHORT_GI) + if (status->enc_flags & RX_ENC_FLAG_SHORT_GI) *pos |= IEEE80211_RADIOTAP_MCS_SGI; - if (status->flag & RX_FLAG_40MHZ) + if (status->bw == RATE_INFO_BW_40) *pos |= IEEE80211_RADIOTAP_MCS_BW_40; - if (status->flag & RX_FLAG_HT_GF) + if (status->enc_flags & RX_ENC_FLAG_HT_GF) *pos |= IEEE80211_RADIOTAP_MCS_FMT_GF; - if (status->flag & RX_FLAG_LDPC) + if (status->enc_flags & RX_ENC_FLAG_LDPC) *pos |= IEEE80211_RADIOTAP_MCS_FEC_LDPC; - stbc = (status->flag & RX_FLAG_STBC_MASK) >> RX_FLAG_STBC_SHIFT; + stbc = (status->enc_flags & RX_ENC_FLAG_STBC_MASK) >> RX_ENC_FLAG_STBC_SHIFT; *pos |= stbc << IEEE80211_RADIOTAP_MCS_STBC_SHIFT; pos++; *pos++ = status->rate_idx; @@ -449,35 +449,40 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local, *pos++ = 0; } - if (status->flag & RX_FLAG_VHT) { + if (status->encoding == RX_ENC_VHT) { u16 known = local->hw.radiotap_vht_details; rthdr->it_present |= cpu_to_le32(1 << IEEE80211_RADIOTAP_VHT); put_unaligned_le16(known, pos); pos += 2; /* flags */ - if (status->flag & RX_FLAG_SHORT_GI) + if (status->enc_flags & RX_ENC_FLAG_SHORT_GI) *pos |= IEEE80211_RADIOTAP_VHT_FLAG_SGI; /* in VHT, STBC is binary */ - if (status->flag & RX_FLAG_STBC_MASK) + if (status->enc_flags & RX_ENC_FLAG_STBC_MASK) *pos |= IEEE80211_RADIOTAP_VHT_FLAG_STBC; - if (status->vht_flag & RX_VHT_FLAG_BF) + if (status->enc_flags & RX_ENC_FLAG_BF) *pos |= IEEE80211_RADIOTAP_VHT_FLAG_BEAMFORMED; pos++; /* bandwidth */ - if (status->vht_flag & RX_VHT_FLAG_80MHZ) + switch (status->bw) { + case RATE_INFO_BW_80: *pos++ = 4; - else if (status->vht_flag & RX_VHT_FLAG_160MHZ) + break; + case RATE_INFO_BW_160: *pos++ = 11; - else if (status->flag & RX_FLAG_40MHZ) + break; + case RATE_INFO_BW_40: *pos++ = 1; - else /* 20 MHz */ + break; + default: *pos++ = 0; + } /* MCS/NSS */ - *pos = (status->rate_idx << 4) | status->vht_nss; + *pos = (status->rate_idx << 4) | status->nss; pos += 4; /* coding field */ - if (status->flag & RX_FLAG_LDPC) + if (status->enc_flags & RX_ENC_FLAG_LDPC) *pos |= IEEE80211_RADIOTAP_CODING_LDPC_USER0; pos++; /* group ID */ @@ -533,6 +538,59 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local, } } +static struct sk_buff * +ieee80211_make_monitor_skb(struct ieee80211_local *local, + struct sk_buff **origskb, + struct ieee80211_rate *rate, + int rtap_vendor_space, bool use_origskb) +{ + struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(*origskb); + int rt_hdrlen, needed_headroom; + struct sk_buff *skb; + + /* room for the radiotap header based on driver features */ + rt_hdrlen = ieee80211_rx_radiotap_hdrlen(local, status, *origskb); + needed_headroom = rt_hdrlen - rtap_vendor_space; + + if (use_origskb) { + /* only need to expand headroom if necessary */ + skb = *origskb; + *origskb = NULL; + + /* + * This shouldn't trigger often because most devices have an + * RX header they pull before we get here, and that should + * be big enough for our radiotap information. We should + * probably export the length to drivers so that we can have + * them allocate enough headroom to start with. + */ + if (skb_headroom(skb) < needed_headroom && + pskb_expand_head(skb, needed_headroom, 0, GFP_ATOMIC)) { + dev_kfree_skb(skb); + return NULL; + } + } else { + /* + * Need to make a copy and possibly remove radiotap header + * and FCS from the original. + */ + skb = skb_copy_expand(*origskb, needed_headroom, 0, GFP_ATOMIC); + + if (!skb) + return NULL; + } + + /* prepend radiotap information */ + ieee80211_add_rx_radiotap_header(local, skb, rate, rt_hdrlen, true); + + skb_reset_mac_header(skb); + skb->ip_summed = CHECKSUM_UNNECESSARY; + skb->pkt_type = PACKET_OTHERHOST; + skb->protocol = htons(ETH_P_802_2); + + return skb; +} + /* * This function copies a received frame to all monitor interfaces and * returns a cleaned-up SKB that no longer includes the FCS nor the @@ -544,13 +602,12 @@ ieee80211_rx_monitor(struct ieee80211_local *local, struct sk_buff *origskb, { struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(origskb); struct ieee80211_sub_if_data *sdata; - int rt_hdrlen, needed_headroom; - struct sk_buff *skb, *skb2; - struct net_device *prev_dev = NULL; + struct sk_buff *monskb = NULL; int present_fcs_len = 0; unsigned int rtap_vendor_space = 0; struct ieee80211_sub_if_data *monitor_sdata = rcu_dereference(local->monitor_sdata); + bool only_monitor = false; if (unlikely(status->flag & RX_FLAG_RADIOTAP_VENDOR_DATA)) { struct ieee80211_vendor_radiotap *rtap = (void *)origskb->data; @@ -583,9 +640,11 @@ ieee80211_rx_monitor(struct ieee80211_local *local, struct sk_buff *origskb, return NULL; } + only_monitor = should_drop_frame(origskb, present_fcs_len, + rtap_vendor_space); + if (!local->monitors || (status->flag & RX_FLAG_SKIP_MONITOR)) { - if (should_drop_frame(origskb, present_fcs_len, - rtap_vendor_space)) { + if (only_monitor) { dev_kfree_skb(origskb); return NULL; } @@ -597,67 +656,46 @@ ieee80211_rx_monitor(struct ieee80211_local *local, struct sk_buff *origskb, ieee80211_handle_mu_mimo_mon(monitor_sdata, origskb, rtap_vendor_space); - /* room for the radiotap header based on driver features */ - rt_hdrlen = ieee80211_rx_radiotap_hdrlen(local, status, origskb); - needed_headroom = rt_hdrlen - rtap_vendor_space; - - if (should_drop_frame(origskb, present_fcs_len, rtap_vendor_space)) { - /* only need to expand headroom if necessary */ - skb = origskb; - origskb = NULL; - - /* - * This shouldn't trigger often because most devices have an - * RX header they pull before we get here, and that should - * be big enough for our radiotap information. We should - * probably export the length to drivers so that we can have - * them allocate enough headroom to start with. - */ - if (skb_headroom(skb) < needed_headroom && - pskb_expand_head(skb, needed_headroom, 0, GFP_ATOMIC)) { - dev_kfree_skb(skb); - return NULL; - } - } else { - /* - * Need to make a copy and possibly remove radiotap header - * and FCS from the original. - */ - skb = skb_copy_expand(origskb, needed_headroom, 0, GFP_ATOMIC); - remove_monitor_info(origskb, present_fcs_len, - rtap_vendor_space); - - if (!skb) - return origskb; - } - - /* prepend radiotap information */ - ieee80211_add_rx_radiotap_header(local, skb, rate, rt_hdrlen, true); - - skb_reset_mac_header(skb); - skb->ip_summed = CHECKSUM_UNNECESSARY; - skb->pkt_type = PACKET_OTHERHOST; - skb->protocol = htons(ETH_P_802_2); - list_for_each_entry_rcu(sdata, &local->mon_list, u.mntr.list) { - if (prev_dev) { - skb2 = skb_clone(skb, GFP_ATOMIC); - if (skb2) { - skb2->dev = prev_dev; - netif_receive_skb(skb2); + bool last_monitor = list_is_last(&sdata->u.mntr.list, + &local->mon_list); + + if (!monskb) + monskb = ieee80211_make_monitor_skb(local, &origskb, + rate, + rtap_vendor_space, + only_monitor && + last_monitor); + + if (monskb) { + struct sk_buff *skb; + + if (last_monitor) { + skb = monskb; + monskb = NULL; + } else { + skb = skb_clone(monskb, GFP_ATOMIC); + } + + if (skb) { + skb->dev = sdata->dev; + ieee80211_rx_stats(skb->dev, skb->len); + netif_receive_skb(skb); } } - prev_dev = sdata->dev; - ieee80211_rx_stats(sdata->dev, skb->len); + if (last_monitor) + break; } - if (prev_dev) { - skb->dev = prev_dev; - netif_receive_skb(skb); - } else - dev_kfree_skb(skb); + /* this happens if last_monitor was erroneously false */ + dev_kfree_skb(monskb); + /* ditto */ + if (!origskb) + return NULL; + + remove_monitor_info(origskb, present_fcs_len, rtap_vendor_space); return origskb; } @@ -3303,8 +3341,8 @@ static void ieee80211_rx_handlers_result(struct ieee80211_rx_data *rx, status = IEEE80211_SKB_RXCB((rx->skb)); sband = rx->local->hw.wiphy->bands[status->band]; - if (!(status->flag & RX_FLAG_HT) && - !(status->flag & RX_FLAG_VHT)) + if (!(status->encoding == RX_ENC_HT) && + !(status->encoding == RX_ENC_VHT)) rate = &sband->bitrates[status->rate_idx]; ieee80211_rx_cooked_monitor(rx, rate); @@ -3541,7 +3579,7 @@ static bool ieee80211_accept_frame(struct ieee80211_rx_data *rx) struct ieee80211_hdr *hdr = (void *)skb->data; struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb); u8 *bssid = ieee80211_get_bssid(hdr, skb->len, sdata->vif.type); - int multicast = is_multicast_ether_addr(hdr->addr1); + bool multicast = is_multicast_ether_addr(hdr->addr1); switch (sdata->vif.type) { case NL80211_IFTYPE_STATION: @@ -3565,7 +3603,7 @@ static bool ieee80211_accept_frame(struct ieee80211_rx_data *rx) return false; if (!rx->sta) { int rate_idx; - if (status->flag & (RX_FLAG_HT | RX_FLAG_VHT)) + if (status->encoding != RX_ENC_LEGACY) rate_idx = 0; /* TODO: HT/VHT rates */ else rate_idx = status->rate_idx; @@ -3585,7 +3623,7 @@ static bool ieee80211_accept_frame(struct ieee80211_rx_data *rx) return false; if (!rx->sta) { int rate_idx; - if (status->flag & RX_FLAG_HT) + if (status->encoding != RX_ENC_LEGACY) rate_idx = 0; /* TODO: HT rates */ else rate_idx = status->rate_idx; @@ -4248,7 +4286,8 @@ void ieee80211_rx_napi(struct ieee80211_hw *hw, struct ieee80211_sta *pubsta, * we probably can't have a valid rate here anyway. */ - if (status->flag & RX_FLAG_HT) { + switch (status->encoding) { + case RX_ENC_HT: /* * rate_idx is MCS index, which can be [0-76] * as documented on: @@ -4266,14 +4305,19 @@ void ieee80211_rx_napi(struct ieee80211_hw *hw, struct ieee80211_sta *pubsta, status->rate_idx, status->rate_idx)) goto drop; - } else if (status->flag & RX_FLAG_VHT) { + break; + case RX_ENC_VHT: if (WARN_ONCE(status->rate_idx > 9 || - !status->vht_nss || - status->vht_nss > 8, + !status->nss || + status->nss > 8, "Rate marked as a VHT rate but data is invalid: MCS: %d, NSS: %d\n", - status->rate_idx, status->vht_nss)) + status->rate_idx, status->nss)) goto drop; - } else { + break; + default: + WARN_ON_ONCE(1); + /* fall through */ + case RX_ENC_LEGACY: if (WARN_ON(status->rate_idx >= sband->n_bitrates)) goto drop; rate = &sband->bitrates[status->rate_idx]; diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c index faab3c490d2b..47d2ed570470 100644 --- a/net/mac80211/scan.c +++ b/net/mac80211/scan.c @@ -79,9 +79,9 @@ ieee80211_bss_info_update(struct ieee80211_local *local, bss_meta.signal = (rx_status->signal * 100) / local->hw.max_signal; bss_meta.scan_width = NL80211_BSS_CHAN_WIDTH_20; - if (rx_status->flag & RX_FLAG_5MHZ) + if (rx_status->bw == RATE_INFO_BW_5) bss_meta.scan_width = NL80211_BSS_CHAN_WIDTH_5; - if (rx_status->flag & RX_FLAG_10MHZ) + else if (rx_status->bw == RATE_INFO_BW_10) bss_meta.scan_width = NL80211_BSS_CHAN_WIDTH_10; bss_meta.chan = channel; @@ -174,8 +174,8 @@ ieee80211_bss_info_update(struct ieee80211_local *local, if (beacon) { struct ieee80211_supported_band *sband = local->hw.wiphy->bands[rx_status->band]; - if (!(rx_status->flag & RX_FLAG_HT) && - !(rx_status->flag & RX_FLAG_VHT)) + if (!(rx_status->encoding == RX_ENC_HT) && + !(rx_status->encoding == RX_ENC_VHT)) bss->beacon_rate = &sband->bitrates[rx_status->rate_idx]; } @@ -1219,7 +1219,7 @@ void ieee80211_sched_scan_results(struct ieee80211_hw *hw) trace_api_sched_scan_results(local); - cfg80211_sched_scan_results(hw->wiphy); + cfg80211_sched_scan_results(hw->wiphy, 0); } EXPORT_SYMBOL(ieee80211_sched_scan_results); @@ -1239,7 +1239,7 @@ void ieee80211_sched_scan_end(struct ieee80211_local *local) mutex_unlock(&local->mtx); - cfg80211_sched_scan_stopped(local->hw.wiphy); + cfg80211_sched_scan_stopped(local->hw.wiphy, 0); } void ieee80211_sched_scan_stopped_work(struct work_struct *work) diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c index 81ec1f72518d..7cdf7a835bb0 100644 --- a/net/mac80211/sta_info.c +++ b/net/mac80211/sta_info.c @@ -2,7 +2,7 @@ * Copyright 2002-2005, Instant802 Networks, Inc. * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz> * Copyright 2013-2014 Intel Mobile Communications GmbH - * Copyright (C) 2015 - 2016 Intel Deutschland GmbH + * Copyright (C) 2015 - 2017 Intel Deutschland GmbH * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -395,10 +395,15 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata, sta->sta.smps_mode = IEEE80211_SMPS_OFF; if (sdata->vif.type == NL80211_IFTYPE_AP || sdata->vif.type == NL80211_IFTYPE_AP_VLAN) { - struct ieee80211_supported_band *sband = - hw->wiphy->bands[ieee80211_get_sdata_band(sdata)]; - u8 smps = (sband->ht_cap.cap & IEEE80211_HT_CAP_SM_PS) >> - IEEE80211_HT_CAP_SM_PS_SHIFT; + struct ieee80211_supported_band *sband; + u8 smps; + + sband = ieee80211_get_sband(sdata); + if (!sband) + goto free_txq; + + smps = (sband->ht_cap.cap & IEEE80211_HT_CAP_SM_PS) >> + IEEE80211_HT_CAP_SM_PS_SHIFT; /* * Assume that hostapd advertises our caps in the beacon and * this is the known_smps_mode for a station that just assciated @@ -1957,27 +1962,32 @@ sta_get_last_rx_stats(struct sta_info *sta) static void sta_stats_decode_rate(struct ieee80211_local *local, u16 rate, struct rate_info *rinfo) { - rinfo->bw = (rate & STA_STATS_RATE_BW_MASK) >> - STA_STATS_RATE_BW_SHIFT; + rinfo->bw = STA_STATS_GET(BW, rate); - switch (rate & STA_STATS_RATE_TYPE_MASK) { + switch (STA_STATS_GET(TYPE, rate)) { case STA_STATS_RATE_TYPE_VHT: rinfo->flags = RATE_INFO_FLAGS_VHT_MCS; - rinfo->mcs = rate & 0xf; - rinfo->nss = (rate & 0xf0) >> 4; + rinfo->mcs = STA_STATS_GET(VHT_MCS, rate); + rinfo->nss = STA_STATS_GET(VHT_NSS, rate); + if (STA_STATS_GET(SGI, rate)) + rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; break; case STA_STATS_RATE_TYPE_HT: rinfo->flags = RATE_INFO_FLAGS_MCS; - rinfo->mcs = rate & 0xff; + rinfo->mcs = STA_STATS_GET(HT_MCS, rate); + if (STA_STATS_GET(SGI, rate)) + rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; break; case STA_STATS_RATE_TYPE_LEGACY: { struct ieee80211_supported_band *sband; u16 brate; unsigned int shift; + int band = STA_STATS_GET(LEGACY_BAND, rate); + int rate_idx = STA_STATS_GET(LEGACY_IDX, rate); rinfo->flags = 0; - sband = local->hw.wiphy->bands[(rate >> 4) & 0xf]; - brate = sband->bitrates[rate & 0xf].bitrate; + sband = local->hw.wiphy->bands[band]; + brate = sband->bitrates[rate_idx].bitrate; if (rinfo->bw == RATE_INFO_BW_5) shift = 2; else if (rinfo->bw == RATE_INFO_BW_10) @@ -1988,9 +1998,6 @@ static void sta_stats_decode_rate(struct ieee80211_local *local, u16 rate, break; } } - - if (rate & STA_STATS_RATE_SGI) - rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; } static int sta_set_rate_info_rx(struct sta_info *sta, struct rate_info *rinfo) diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h index 8949266d7bc3..5609cacb20d5 100644 --- a/net/mac80211/sta_info.h +++ b/net/mac80211/sta_info.h @@ -1,7 +1,7 @@ /* * Copyright 2002-2005, Devicescape Software, Inc. * Copyright 2013-2014 Intel Mobile Communications GmbH - * Copyright(c) 2015-2016 Intel Deutschland GmbH + * Copyright(c) 2015-2017 Intel Deutschland GmbH * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -16,6 +16,7 @@ #include <linux/if_ether.h> #include <linux/workqueue.h> #include <linux/average.h> +#include <linux/bitfield.h> #include <linux/etherdevice.h> #include <linux/rhashtable.h> #include <linux/u64_stats_sync.h> @@ -727,41 +728,55 @@ void ieee80211_sta_ps_deliver_uapsd(struct sta_info *sta); unsigned long ieee80211_sta_last_active(struct sta_info *sta); +enum sta_stats_type { + STA_STATS_RATE_TYPE_INVALID = 0, + STA_STATS_RATE_TYPE_LEGACY, + STA_STATS_RATE_TYPE_HT, + STA_STATS_RATE_TYPE_VHT, +}; + +#define STA_STATS_FIELD_HT_MCS GENMASK( 7, 0) +#define STA_STATS_FIELD_LEGACY_IDX GENMASK( 3, 0) +#define STA_STATS_FIELD_LEGACY_BAND GENMASK( 7, 4) +#define STA_STATS_FIELD_VHT_MCS GENMASK( 3, 0) +#define STA_STATS_FIELD_VHT_NSS GENMASK( 7, 4) +#define STA_STATS_FIELD_BW GENMASK(11, 8) +#define STA_STATS_FIELD_SGI GENMASK(12, 12) +#define STA_STATS_FIELD_TYPE GENMASK(15, 13) + +#define STA_STATS_FIELD(_n, _v) FIELD_PREP(STA_STATS_FIELD_ ## _n, _v) +#define STA_STATS_GET(_n, _v) FIELD_GET(STA_STATS_FIELD_ ## _n, _v) + #define STA_STATS_RATE_INVALID 0 -#define STA_STATS_RATE_TYPE_MASK 0xC000 -#define STA_STATS_RATE_TYPE_LEGACY 0x4000 -#define STA_STATS_RATE_TYPE_HT 0x8000 -#define STA_STATS_RATE_TYPE_VHT 0xC000 -#define STA_STATS_RATE_SGI 0x1000 -#define STA_STATS_RATE_BW_SHIFT 9 -#define STA_STATS_RATE_BW_MASK (0x7 << STA_STATS_RATE_BW_SHIFT) - -static inline u16 sta_stats_encode_rate(struct ieee80211_rx_status *s) + +static inline u32 sta_stats_encode_rate(struct ieee80211_rx_status *s) { - u16 r = s->rate_idx; - - if (s->vht_flag & RX_VHT_FLAG_80MHZ) - r |= RATE_INFO_BW_80 << STA_STATS_RATE_BW_SHIFT; - else if (s->vht_flag & RX_VHT_FLAG_160MHZ) - r |= RATE_INFO_BW_160 << STA_STATS_RATE_BW_SHIFT; - else if (s->flag & RX_FLAG_40MHZ) - r |= RATE_INFO_BW_40 << STA_STATS_RATE_BW_SHIFT; - else if (s->flag & RX_FLAG_10MHZ) - r |= RATE_INFO_BW_10 << STA_STATS_RATE_BW_SHIFT; - else if (s->flag & RX_FLAG_5MHZ) - r |= RATE_INFO_BW_5 << STA_STATS_RATE_BW_SHIFT; - else - r |= RATE_INFO_BW_20 << STA_STATS_RATE_BW_SHIFT; - - if (s->flag & RX_FLAG_SHORT_GI) - r |= STA_STATS_RATE_SGI; - - if (s->flag & RX_FLAG_VHT) - r |= STA_STATS_RATE_TYPE_VHT | (s->vht_nss << 4); - else if (s->flag & RX_FLAG_HT) - r |= STA_STATS_RATE_TYPE_HT; - else - r |= STA_STATS_RATE_TYPE_LEGACY | (s->band << 4); + u16 r; + + r = STA_STATS_FIELD(BW, s->bw); + + if (s->enc_flags & RX_ENC_FLAG_SHORT_GI) + r |= STA_STATS_FIELD(SGI, 1); + + switch (s->encoding) { + case RX_ENC_VHT: + r |= STA_STATS_FIELD(TYPE, STA_STATS_RATE_TYPE_VHT); + r |= STA_STATS_FIELD(VHT_NSS, s->nss); + r |= STA_STATS_FIELD(VHT_MCS, s->rate_idx); + break; + case RX_ENC_HT: + r |= STA_STATS_FIELD(TYPE, STA_STATS_RATE_TYPE_HT); + r |= STA_STATS_FIELD(HT_MCS, s->rate_idx); + break; + case RX_ENC_LEGACY: + r |= STA_STATS_FIELD(TYPE, STA_STATS_RATE_TYPE_LEGACY); + r |= STA_STATS_FIELD(LEGACY_BAND, s->band); + r |= STA_STATS_FIELD(LEGACY_IDX, s->rate_idx); + break; + default: + WARN_ON(1); + return STA_STATS_RATE_INVALID; + } return r; } diff --git a/net/mac80211/status.c b/net/mac80211/status.c index 83b8b11f24ea..be47ac5cd8c8 100644 --- a/net/mac80211/status.c +++ b/net/mac80211/status.c @@ -200,6 +200,7 @@ static void ieee80211_frame_acked(struct sta_info *sta, struct sk_buff *skb) } if (ieee80211_is_action(mgmt->frame_control) && + !ieee80211_has_protected(mgmt->frame_control) && mgmt->u.action.category == WLAN_CATEGORY_HT && mgmt->u.action.u.ht_smps.action == WLAN_HT_ACTION_SMPS && ieee80211_sdata_running(sdata)) { @@ -630,61 +631,6 @@ static int ieee80211_tx_get_rates(struct ieee80211_hw *hw, return rates_idx; } -void ieee80211_tx_status_noskb(struct ieee80211_hw *hw, - struct ieee80211_sta *pubsta, - struct ieee80211_tx_info *info) -{ - struct ieee80211_local *local = hw_to_local(hw); - struct ieee80211_supported_band *sband; - int retry_count; - bool acked, noack_success; - - ieee80211_tx_get_rates(hw, info, &retry_count); - - sband = hw->wiphy->bands[info->band]; - - acked = !!(info->flags & IEEE80211_TX_STAT_ACK); - noack_success = !!(info->flags & IEEE80211_TX_STAT_NOACK_TRANSMITTED); - - if (pubsta) { - struct sta_info *sta; - - sta = container_of(pubsta, struct sta_info, sta); - - if (!acked) - sta->status_stats.retry_failed++; - sta->status_stats.retry_count += retry_count; - - if (acked) { - sta->status_stats.last_ack = jiffies; - - if (sta->status_stats.lost_packets) - sta->status_stats.lost_packets = 0; - - /* Track when last TDLS packet was ACKed */ - if (test_sta_flag(sta, WLAN_STA_TDLS_PEER_AUTH)) - sta->status_stats.last_tdls_pkt_time = jiffies; - } else { - ieee80211_lost_packet(sta, info); - } - - rate_control_tx_status_noskb(local, sband, sta, info); - } - - if (acked || noack_success) { - I802_DEBUG_INC(local->dot11TransmittedFrameCount); - if (!pubsta) - I802_DEBUG_INC(local->dot11MulticastTransmittedFrameCount); - if (retry_count > 0) - I802_DEBUG_INC(local->dot11RetryCount); - if (retry_count > 1) - I802_DEBUG_INC(local->dot11MultipleRetryCount); - } else { - I802_DEBUG_INC(local->dot11FailedCount); - } -} -EXPORT_SYMBOL(ieee80211_tx_status_noskb); - void ieee80211_tx_monitor(struct ieee80211_local *local, struct sk_buff *skb, struct ieee80211_supported_band *sband, int retry_count, int shift, bool send_to_cooked) @@ -742,15 +688,16 @@ void ieee80211_tx_monitor(struct ieee80211_local *local, struct sk_buff *skb, dev_kfree_skb(skb); } -void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) +static void __ieee80211_tx_status(struct ieee80211_hw *hw, + struct ieee80211_tx_status *status) { + struct sk_buff *skb = status->skb; struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; struct ieee80211_local *local = hw_to_local(hw); - struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); + struct ieee80211_tx_info *info = status->info; + struct sta_info *sta; __le16 fc; struct ieee80211_supported_band *sband; - struct rhlist_head *tmp; - struct sta_info *sta; int retry_count; int rates_idx; bool send_to_cooked; @@ -761,16 +708,11 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) rates_idx = ieee80211_tx_get_rates(hw, info, &retry_count); - rcu_read_lock(); - sband = local->hw.wiphy->bands[info->band]; fc = hdr->frame_control; - for_each_sta_info(local, hdr->addr1, sta, tmp) { - /* skip wrong virtual interface */ - if (!ether_addr_equal(hdr->addr2, sta->sdata->vif.addr)) - continue; - + if (status->sta) { + sta = container_of(status->sta, struct sta_info, sta); shift = ieee80211_vif_get_shift(&sta->sdata->vif); if (info->flags & IEEE80211_TX_STATUS_EOSP) @@ -790,7 +732,6 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) * that this TX packet failed because of that. */ ieee80211_handle_filtered_frame(local, sta, skb); - rcu_read_unlock(); return; } @@ -840,7 +781,6 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) if (info->flags & IEEE80211_TX_STAT_TX_FILTERED) { ieee80211_handle_filtered_frame(local, sta, skb); - rcu_read_unlock(); return; } else { if (!acked) @@ -856,7 +796,7 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) } } - rate_control_tx_status(local, sband, sta, skb); + rate_control_tx_status(local, sband, status); if (ieee80211_vif_is_mesh(&sta->sdata->vif)) ieee80211s_update_metric(local, sta, skb); @@ -883,8 +823,6 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) } } - rcu_read_unlock(); - ieee80211_led_tx(local); /* SNMP counters @@ -949,8 +887,96 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) /* send to monitor interfaces */ ieee80211_tx_monitor(local, skb, sband, retry_count, shift, send_to_cooked); } + +void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) +{ + struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; + struct ieee80211_local *local = hw_to_local(hw); + struct ieee80211_tx_status status = { + .skb = skb, + .info = IEEE80211_SKB_CB(skb), + }; + struct rhlist_head *tmp; + struct sta_info *sta; + + rcu_read_lock(); + + for_each_sta_info(local, hdr->addr1, sta, tmp) { + /* skip wrong virtual interface */ + if (!ether_addr_equal(hdr->addr2, sta->sdata->vif.addr)) + continue; + + status.sta = &sta->sta; + break; + } + + __ieee80211_tx_status(hw, &status); + rcu_read_unlock(); +} EXPORT_SYMBOL(ieee80211_tx_status); +void ieee80211_tx_status_ext(struct ieee80211_hw *hw, + struct ieee80211_tx_status *status) +{ + struct ieee80211_local *local = hw_to_local(hw); + struct ieee80211_tx_info *info = status->info; + struct ieee80211_sta *pubsta = status->sta; + struct ieee80211_supported_band *sband; + int retry_count; + bool acked, noack_success; + + if (status->skb) + return __ieee80211_tx_status(hw, status); + + if (!status->sta) + return; + + ieee80211_tx_get_rates(hw, info, &retry_count); + + sband = hw->wiphy->bands[info->band]; + + acked = !!(info->flags & IEEE80211_TX_STAT_ACK); + noack_success = !!(info->flags & IEEE80211_TX_STAT_NOACK_TRANSMITTED); + + if (pubsta) { + struct sta_info *sta; + + sta = container_of(pubsta, struct sta_info, sta); + + if (!acked) + sta->status_stats.retry_failed++; + sta->status_stats.retry_count += retry_count; + + if (acked) { + sta->status_stats.last_ack = jiffies; + + if (sta->status_stats.lost_packets) + sta->status_stats.lost_packets = 0; + + /* Track when last TDLS packet was ACKed */ + if (test_sta_flag(sta, WLAN_STA_TDLS_PEER_AUTH)) + sta->status_stats.last_tdls_pkt_time = jiffies; + } else { + ieee80211_lost_packet(sta, info); + } + + rate_control_tx_status(local, sband, status); + } + + if (acked || noack_success) { + I802_DEBUG_INC(local->dot11TransmittedFrameCount); + if (!pubsta) + I802_DEBUG_INC(local->dot11MulticastTransmittedFrameCount); + if (retry_count > 0) + I802_DEBUG_INC(local->dot11RetryCount); + if (retry_count > 1) + I802_DEBUG_INC(local->dot11MultipleRetryCount); + } else { + I802_DEBUG_INC(local->dot11FailedCount); + } +} +EXPORT_SYMBOL(ieee80211_tx_status_ext); + void ieee80211_report_low_ack(struct ieee80211_sta *pubsta, u32 num_packets) { struct sta_info *sta = container_of(pubsta, struct sta_info, sta); diff --git a/net/mac80211/tdls.c b/net/mac80211/tdls.c index afca7d103684..f20dcf1b1830 100644 --- a/net/mac80211/tdls.c +++ b/net/mac80211/tdls.c @@ -47,8 +47,7 @@ static void ieee80211_tdls_add_ext_capab(struct ieee80211_sub_if_data *sdata, NL80211_FEATURE_TDLS_CHANNEL_SWITCH; bool wider_band = ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) && !ifmgd->tdls_wider_bw_prohibited; - enum nl80211_band band = ieee80211_get_sdata_band(sdata); - struct ieee80211_supported_band *sband = local->hw.wiphy->bands[band]; + struct ieee80211_supported_band *sband = ieee80211_get_sband(sdata); bool vht = sband && sband->vht_cap.vht_supported; u8 *pos = (void *)skb_put(skb, 10); @@ -180,11 +179,14 @@ static void ieee80211_tdls_add_bss_coex_ie(struct sk_buff *skb) static u16 ieee80211_get_tdls_sta_capab(struct ieee80211_sub_if_data *sdata, u16 status_code) { + struct ieee80211_supported_band *sband; + /* The capability will be 0 when sending a failure code */ if (status_code != 0) return 0; - if (ieee80211_get_sdata_band(sdata) == NL80211_BAND_2GHZ) { + sband = ieee80211_get_sband(sdata); + if (sband && sband->band == NL80211_BAND_2GHZ) { return WLAN_CAPABILITY_SHORT_SLOT_TIME | WLAN_CAPABILITY_SHORT_PREAMBLE; } @@ -358,17 +360,20 @@ ieee80211_tdls_add_setup_start_ies(struct ieee80211_sub_if_data *sdata, u8 action_code, bool initiator, const u8 *extra_ies, size_t extra_ies_len) { - enum nl80211_band band = ieee80211_get_sdata_band(sdata); - struct ieee80211_local *local = sdata->local; struct ieee80211_supported_band *sband; + struct ieee80211_local *local = sdata->local; struct ieee80211_sta_ht_cap ht_cap; struct ieee80211_sta_vht_cap vht_cap; struct sta_info *sta = NULL; size_t offset = 0, noffset; u8 *pos; - ieee80211_add_srates_ie(sdata, skb, false, band); - ieee80211_add_ext_srates_ie(sdata, skb, false, band); + sband = ieee80211_get_sband(sdata); + if (!sband) + return; + + ieee80211_add_srates_ie(sdata, skb, false, sband->band); + ieee80211_add_ext_srates_ie(sdata, skb, false, sband->band); ieee80211_tdls_add_supp_channels(sdata, skb); /* add any custom IEs that go before Extended Capabilities */ @@ -439,7 +444,6 @@ ieee80211_tdls_add_setup_start_ies(struct ieee80211_sub_if_data *sdata, * the same on all bands. The specification limits the setup to a * single HT-cap, so use the current band for now. */ - sband = local->hw.wiphy->bands[band]; memcpy(&ht_cap, &sband->ht_cap, sizeof(ht_cap)); if ((action_code == WLAN_TDLS_SETUP_REQUEST || @@ -545,9 +549,13 @@ ieee80211_tdls_add_setup_cfm_ies(struct ieee80211_sub_if_data *sdata, struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; size_t offset = 0, noffset; struct sta_info *sta, *ap_sta; - enum nl80211_band band = ieee80211_get_sdata_band(sdata); + struct ieee80211_supported_band *sband; u8 *pos; + sband = ieee80211_get_sband(sdata); + if (!sband) + return; + mutex_lock(&local->sta_mtx); sta = sta_info_get(sdata, peer); @@ -612,7 +620,8 @@ ieee80211_tdls_add_setup_cfm_ies(struct ieee80211_sub_if_data *sdata, ieee80211_tdls_add_link_ie(sdata, skb, peer, initiator); /* only include VHT-operation if not on the 2.4GHz band */ - if (band != NL80211_BAND_2GHZ && sta->sta.vht_cap.vht_supported) { + if (sband->band != NL80211_BAND_2GHZ && + sta->sta.vht_cap.vht_supported) { /* * if both peers support WIDER_BW, we can expand the chandef to * a wider compatible one, up to 80MHz diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index f27719eeeed7..04b22f8982fe 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -4297,7 +4297,10 @@ struct sk_buff *ieee80211_beacon_get_tim(struct ieee80211_hw *hw, return bcn; shift = ieee80211_vif_get_shift(vif); - sband = hw->wiphy->bands[ieee80211_get_sdata_band(vif_to_sdata(vif))]; + sband = ieee80211_get_sband(vif_to_sdata(vif)); + if (!sband) + return bcn; + ieee80211_tx_monitor(hw_to_local(hw), copy, sband, 1, shift, false); return bcn; diff --git a/net/mac80211/util.c b/net/mac80211/util.c index 7a37ce78bb38..ac9ac6c35594 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -4,7 +4,7 @@ * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz> * Copyright 2007 Johannes Berg <johannes@sipsolutions.net> * Copyright 2013-2014 Intel Mobile Communications GmbH - * Copyright (C) 2015-2016 Intel Deutschland GmbH + * Copyright (C) 2015-2017 Intel Deutschland GmbH * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -828,6 +828,7 @@ u32 ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action, case WLAN_EID_EXT_CAPABILITY: case WLAN_EID_CHAN_SWITCH_TIMING: case WLAN_EID_LINK_ID: + case WLAN_EID_BSS_MAX_IDLE_PERIOD: /* * not listing WLAN_EID_CHANNEL_SWITCH_WRAPPER -- it seems possible * that if the content gets bigger it might be needed more than once @@ -1089,6 +1090,10 @@ u32 ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action, else elem_parse_failed = true; break; + case WLAN_EID_BSS_MAX_IDLE_PERIOD: + if (elen >= sizeof(*elems->max_idle_period_ie)) + elems->max_idle_period_ie = (void *)pos; + break; default: break; } @@ -1590,14 +1595,14 @@ u32 ieee80211_sta_get_rates(struct ieee80211_sub_if_data *sdata, size_t num_rates; u32 supp_rates, rate_flags; int i, j, shift; + sband = sdata->local->hw.wiphy->bands[band]; + if (WARN_ON(!sband)) + return 1; rate_flags = ieee80211_chandef_rate_flags(&sdata->vif.bss_conf.chandef); shift = ieee80211_vif_get_shift(&sdata->vif); - if (WARN_ON(!sband)) - return 1; - num_rates = sband->n_bitrates; supp_rates = 0; for (i = 0; i < elems->supp_rates_len + @@ -1983,6 +1988,10 @@ int ieee80211_reconfig(struct ieee80211_local *local) if (sdata->u.mgd.have_beacon) changed |= BSS_CHANGED_BEACON_INFO; + if (sdata->vif.bss_conf.max_idle_period || + sdata->vif.bss_conf.protected_keep_alive) + changed |= BSS_CHANGED_KEEP_ALIVE; + sdata_lock(sdata); ieee80211_bss_info_change_notify(sdata, changed); sdata_unlock(sdata); @@ -2103,7 +2112,7 @@ int ieee80211_reconfig(struct ieee80211_local *local) mutex_unlock(&local->mtx); if (sched_scan_stopped) - cfg80211_sched_scan_stopped_rtnl(local->hw.wiphy); + cfg80211_sched_scan_stopped_rtnl(local->hw.wiphy, 0); wake_up: if (local->in_reconfig) { @@ -2715,42 +2724,39 @@ u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local, memset(&ri, 0, sizeof(ri)); /* Fill cfg80211 rate info */ - if (status->flag & RX_FLAG_HT) { + switch (status->encoding) { + case RX_ENC_HT: ri.mcs = status->rate_idx; ri.flags |= RATE_INFO_FLAGS_MCS; - if (status->flag & RX_FLAG_40MHZ) - ri.bw = RATE_INFO_BW_40; - else - ri.bw = RATE_INFO_BW_20; - if (status->flag & RX_FLAG_SHORT_GI) + ri.bw = status->bw; + if (status->enc_flags & RX_ENC_FLAG_SHORT_GI) ri.flags |= RATE_INFO_FLAGS_SHORT_GI; - } else if (status->flag & RX_FLAG_VHT) { + break; + case RX_ENC_VHT: ri.flags |= RATE_INFO_FLAGS_VHT_MCS; ri.mcs = status->rate_idx; - ri.nss = status->vht_nss; - if (status->flag & RX_FLAG_40MHZ) - ri.bw = RATE_INFO_BW_40; - else if (status->vht_flag & RX_VHT_FLAG_80MHZ) - ri.bw = RATE_INFO_BW_80; - else if (status->vht_flag & RX_VHT_FLAG_160MHZ) - ri.bw = RATE_INFO_BW_160; - else - ri.bw = RATE_INFO_BW_20; - if (status->flag & RX_FLAG_SHORT_GI) + ri.nss = status->nss; + ri.bw = status->bw; + if (status->enc_flags & RX_ENC_FLAG_SHORT_GI) ri.flags |= RATE_INFO_FLAGS_SHORT_GI; - } else { + break; + default: + WARN_ON(1); + /* fall through */ + case RX_ENC_LEGACY: { struct ieee80211_supported_band *sband; int shift = 0; int bitrate; - if (status->flag & RX_FLAG_10MHZ) { + ri.bw = status->bw; + + switch (status->bw) { + case RATE_INFO_BW_10: shift = 1; - ri.bw = RATE_INFO_BW_10; - } else if (status->flag & RX_FLAG_5MHZ) { + break; + case RATE_INFO_BW_5: shift = 2; - ri.bw = RATE_INFO_BW_5; - } else { - ri.bw = RATE_INFO_BW_20; + break; } sband = local->hw.wiphy->bands[status->band]; @@ -2762,19 +2768,21 @@ u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local, if (status->band == NL80211_BAND_5GHZ) { ts += 20 << shift; mpdu_offset += 2; - } else if (status->flag & RX_FLAG_SHORTPRE) { + } else if (status->enc_flags & RX_ENC_FLAG_SHORTPRE) { ts += 96; } else { ts += 192; } } + break; + } } rate = cfg80211_calculate_bitrate(&ri); if (WARN_ONCE(!rate, "Invalid bitrate: flags=0x%llx, idx=%d, vht_nss=%d\n", (unsigned long long)status->flag, status->rate_idx, - status->vht_nss)) + status->nss)) return 0; /* rewind from end of MPDU */ @@ -2791,8 +2799,10 @@ void ieee80211_dfs_cac_cancel(struct ieee80211_local *local) struct ieee80211_sub_if_data *sdata; struct cfg80211_chan_def chandef; + /* for interface list, to avoid linking iflist_mtx and chanctx_mtx */ + ASSERT_RTNL(); + mutex_lock(&local->mtx); - mutex_lock(&local->iflist_mtx); list_for_each_entry(sdata, &local->interfaces, list) { /* it might be waiting for the local->mtx, but then * by the time it gets it, sdata->wdev.cac_started @@ -2809,7 +2819,6 @@ void ieee80211_dfs_cac_cancel(struct ieee80211_local *local) GFP_KERNEL); } } - mutex_unlock(&local->iflist_mtx); mutex_unlock(&local->mtx); } @@ -2831,7 +2840,9 @@ void ieee80211_dfs_radar_detected_work(struct work_struct *work) } mutex_unlock(&local->chanctx_mtx); + rtnl_lock(); ieee80211_dfs_cac_cancel(local); + rtnl_unlock(); if (num_chanctx > 1) /* XXX: multi-channel is not supported yet */ @@ -2846,7 +2857,7 @@ void ieee80211_radar_detected(struct ieee80211_hw *hw) trace_api_radar_detected(local); - ieee80211_queue_work(hw, &local->radar_detected_work); + schedule_work(&local->radar_detected_work); } EXPORT_SYMBOL(ieee80211_radar_detected); diff --git a/net/wireless/core.c b/net/wireless/core.c index b0d6761f0cdd..83ea164f16b3 100644 --- a/net/wireless/core.c +++ b/net/wireless/core.c @@ -305,30 +305,14 @@ static void cfg80211_event_work(struct work_struct *work) void cfg80211_destroy_ifaces(struct cfg80211_registered_device *rdev) { - struct cfg80211_iface_destroy *item; + struct wireless_dev *wdev, *tmp; ASSERT_RTNL(); - spin_lock_irq(&rdev->destroy_list_lock); - while ((item = list_first_entry_or_null(&rdev->destroy_list, - struct cfg80211_iface_destroy, - list))) { - struct wireless_dev *wdev, *tmp; - u32 nlportid = item->nlportid; - - list_del(&item->list); - kfree(item); - spin_unlock_irq(&rdev->destroy_list_lock); - - list_for_each_entry_safe(wdev, tmp, - &rdev->wiphy.wdev_list, list) { - if (nlportid == wdev->owner_nlportid) - rdev_del_virtual_intf(rdev, wdev); - } - - spin_lock_irq(&rdev->destroy_list_lock); + list_for_each_entry_safe(wdev, tmp, &rdev->wiphy.wdev_list, list) { + if (wdev->nl_owner_dead) + rdev_del_virtual_intf(rdev, wdev); } - spin_unlock_irq(&rdev->destroy_list_lock); } static void cfg80211_destroy_iface_wk(struct work_struct *work) @@ -346,14 +330,16 @@ static void cfg80211_destroy_iface_wk(struct work_struct *work) static void cfg80211_sched_scan_stop_wk(struct work_struct *work) { struct cfg80211_registered_device *rdev; + struct cfg80211_sched_scan_request *req, *tmp; rdev = container_of(work, struct cfg80211_registered_device, sched_scan_stop_wk); rtnl_lock(); - - __cfg80211_stop_sched_scan(rdev, false); - + list_for_each_entry_safe(req, tmp, &rdev->sched_scan_req_list, list) { + if (req->nl_owner_dead) + cfg80211_stop_sched_scan_req(rdev, req, false); + } rtnl_unlock(); } @@ -468,8 +454,8 @@ use_default_name: spin_lock_init(&rdev->beacon_registrations_lock); spin_lock_init(&rdev->bss_lock); INIT_LIST_HEAD(&rdev->bss_list); + INIT_LIST_HEAD(&rdev->sched_scan_req_list); INIT_WORK(&rdev->scan_done_wk, __cfg80211_scan_done); - INIT_WORK(&rdev->sched_scan_results_wk, __cfg80211_sched_scan_results); INIT_LIST_HEAD(&rdev->mlme_unreg); spin_lock_init(&rdev->mlme_unreg_lock); INIT_WORK(&rdev->mlme_unreg_wk, cfg80211_mlme_unreg_wk); @@ -484,10 +470,9 @@ use_default_name: rdev->wiphy.dev.platform_data = rdev; device_enable_async_suspend(&rdev->wiphy.dev); - INIT_LIST_HEAD(&rdev->destroy_list); - spin_lock_init(&rdev->destroy_list_lock); INIT_WORK(&rdev->destroy_work, cfg80211_destroy_iface_wk); INIT_WORK(&rdev->sched_scan_stop_wk, cfg80211_sched_scan_stop_wk); + INIT_WORK(&rdev->sched_scan_res_wk, cfg80211_sched_scan_results_wk); INIT_WORK(&rdev->propagate_radar_detect_wk, cfg80211_propagate_radar_detect_wk); INIT_WORK(&rdev->propagate_cac_done_wk, cfg80211_propagate_cac_done_wk); @@ -1046,7 +1031,7 @@ void __cfg80211_leave(struct cfg80211_registered_device *rdev, struct wireless_dev *wdev) { struct net_device *dev = wdev->netdev; - struct cfg80211_sched_scan_request *sched_scan_req; + struct cfg80211_sched_scan_request *pos, *tmp; ASSERT_RTNL(); ASSERT_WDEV_LOCK(wdev); @@ -1057,9 +1042,11 @@ void __cfg80211_leave(struct cfg80211_registered_device *rdev, break; case NL80211_IFTYPE_P2P_CLIENT: case NL80211_IFTYPE_STATION: - sched_scan_req = rtnl_dereference(rdev->sched_scan_req); - if (sched_scan_req && dev == sched_scan_req->dev) - __cfg80211_stop_sched_scan(rdev, false); + list_for_each_entry_safe(pos, tmp, &rdev->sched_scan_req_list, + list) { + if (dev == pos->dev) + cfg80211_stop_sched_scan_req(rdev, pos, false); + } #ifdef CONFIG_CFG80211_WEXT kfree(wdev->wext.ie); @@ -1134,7 +1121,7 @@ static int cfg80211_netdev_notifier_call(struct notifier_block *nb, struct net_device *dev = netdev_notifier_info_to_dev(ptr); struct wireless_dev *wdev = dev->ieee80211_ptr; struct cfg80211_registered_device *rdev; - struct cfg80211_sched_scan_request *sched_scan_req; + struct cfg80211_sched_scan_request *pos, *tmp; if (!wdev) return NOTIFY_DONE; @@ -1211,10 +1198,10 @@ static int cfg80211_netdev_notifier_call(struct notifier_block *nb, ___cfg80211_scan_done(rdev, false); } - sched_scan_req = rtnl_dereference(rdev->sched_scan_req); - if (WARN_ON(sched_scan_req && - sched_scan_req->dev == wdev->netdev)) { - __cfg80211_stop_sched_scan(rdev, false); + list_for_each_entry_safe(pos, tmp, + &rdev->sched_scan_req_list, list) { + if (WARN_ON(pos && pos->dev == wdev->netdev)) + cfg80211_stop_sched_scan_req(rdev, pos, false); } rdev->opencount--; diff --git a/net/wireless/core.h b/net/wireless/core.h index 5d27eca57d3b..6e809325af3b 100644 --- a/net/wireless/core.h +++ b/net/wireless/core.h @@ -74,10 +74,9 @@ struct cfg80211_registered_device { u32 bss_entries; struct cfg80211_scan_request *scan_req; /* protected by RTNL */ struct sk_buff *scan_msg; - struct cfg80211_sched_scan_request __rcu *sched_scan_req; + struct list_head sched_scan_req_list; unsigned long suspend_at; struct work_struct scan_done_wk; - struct work_struct sched_scan_results_wk; struct genl_info *cur_cmd_info; @@ -91,11 +90,9 @@ struct cfg80211_registered_device { struct cfg80211_coalesce *coalesce; - spinlock_t destroy_list_lock; - struct list_head destroy_list; struct work_struct destroy_work; - struct work_struct sched_scan_stop_wk; + struct work_struct sched_scan_res_wk; struct cfg80211_chan_def radar_chandef; struct work_struct propagate_radar_detect_wk; @@ -227,13 +224,7 @@ struct cfg80211_event { union { struct cfg80211_connect_resp_params cr; - struct { - const u8 *req_ie; - const u8 *resp_ie; - size_t req_ie_len; - size_t resp_ie_len; - struct cfg80211_bss *bss; - } rm; + struct cfg80211_roam_info rm; struct { const u8 *ie; size_t ie_len; @@ -264,11 +255,6 @@ struct cfg80211_beacon_registration { u32 nlportid; }; -struct cfg80211_iface_destroy { - struct list_head list; - u32 nlportid; -}; - struct cfg80211_cqm_config { u32 rssi_hyst; s32 last_rssi_event_value; @@ -398,9 +384,7 @@ int cfg80211_disconnect(struct cfg80211_registered_device *rdev, struct net_device *dev, u16 reason, bool wextev); void __cfg80211_roamed(struct wireless_dev *wdev, - struct cfg80211_bss *bss, - const u8 *req_ie, size_t req_ie_len, - const u8 *resp_ie, size_t resp_ie_len); + struct cfg80211_roam_info *info); int cfg80211_mgd_wext_connect(struct cfg80211_registered_device *rdev, struct wireless_dev *wdev); void cfg80211_autodisconnect_wk(struct work_struct *work); @@ -424,9 +408,16 @@ int cfg80211_validate_key_settings(struct cfg80211_registered_device *rdev, void __cfg80211_scan_done(struct work_struct *wk); void ___cfg80211_scan_done(struct cfg80211_registered_device *rdev, bool send_message); -void __cfg80211_sched_scan_results(struct work_struct *wk); +void cfg80211_add_sched_scan_req(struct cfg80211_registered_device *rdev, + struct cfg80211_sched_scan_request *req); +int cfg80211_sched_scan_req_possible(struct cfg80211_registered_device *rdev, + bool want_multi); +void cfg80211_sched_scan_results_wk(struct work_struct *work); +int cfg80211_stop_sched_scan_req(struct cfg80211_registered_device *rdev, + struct cfg80211_sched_scan_request *req, + bool driver_initiated); int __cfg80211_stop_sched_scan(struct cfg80211_registered_device *rdev, - bool driver_initiated); + u64 reqid, bool driver_initiated); void cfg80211_upload_connect_keys(struct wireless_dev *wdev); int cfg80211_change_iface(struct cfg80211_registered_device *rdev, struct net_device *dev, enum nl80211_iftype ntype, diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 50c35affccad..570fc95dc507 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -419,6 +419,7 @@ static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = { .len = FILS_ERP_MAX_RRK_LEN }, [NL80211_ATTR_FILS_CACHE_ID] = { .len = 2 }, [NL80211_ATTR_PMK] = { .type = NLA_BINARY, .len = PMK_MAX_LEN }, + [NL80211_ATTR_SCHED_SCAN_MULTI] = { .type = NLA_FLAG }, }; /* policy for the key attributes */ @@ -496,6 +497,7 @@ static const struct nla_policy nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = { [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY, .len = IEEE80211_MAX_SSID_LEN }, + [NL80211_SCHED_SCAN_MATCH_ATTR_BSSID] = { .len = ETH_ALEN }, [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 }, }; @@ -1376,7 +1378,7 @@ static int nl80211_add_commands_unsplit(struct cfg80211_registered_device *rdev, CMD(tdls_mgmt, TDLS_MGMT); CMD(tdls_oper, TDLS_OPER); } - if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) + if (rdev->wiphy.max_sched_scan_reqs) CMD(sched_scan_start, START_SCHED_SCAN); CMD(probe_client, PROBE_CLIENT); CMD(set_noack_map, SET_NOACK_MAP); @@ -1815,6 +1817,11 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev, nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG)) goto nla_put_failure; + if (rdev->wiphy.max_sched_scan_reqs && + nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_MAX_REQS, + rdev->wiphy.max_sched_scan_reqs)) + goto nla_put_failure; + if (nla_put(msg, NL80211_ATTR_EXT_FEATURES, sizeof(rdev->wiphy.ext_features), rdev->wiphy.ext_features)) @@ -7030,8 +7037,15 @@ nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev, NULL); if (err) return ERR_PTR(err); + + /* SSID and BSSID are mutually exclusive */ + if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID] && + tb[NL80211_SCHED_SCAN_MATCH_ATTR_BSSID]) + return ERR_PTR(-EINVAL); + /* add other standalone attributes here */ - if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) { + if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID] || + tb[NL80211_SCHED_SCAN_MATCH_ATTR_BSSID]) { n_match_sets++; continue; } @@ -7202,7 +7216,7 @@ nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev, nla_for_each_nested(attr, attrs[NL80211_ATTR_SCHED_SCAN_MATCH], tmp) { - struct nlattr *ssid, *rssi; + struct nlattr *ssid, *bssid, *rssi; err = nla_parse_nested(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX, @@ -7211,7 +7225,8 @@ nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev, if (err) goto out_free; ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]; - if (ssid) { + bssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_BSSID]; + if (ssid || bssid) { if (WARN_ON(i >= n_match_sets)) { /* this indicates a programming error, * the loop above should have verified @@ -7221,14 +7236,25 @@ nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev, goto out_free; } - if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) { - err = -EINVAL; - goto out_free; + if (ssid) { + if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) { + err = -EINVAL; + goto out_free; + } + memcpy(request->match_sets[i].ssid.ssid, + nla_data(ssid), nla_len(ssid)); + request->match_sets[i].ssid.ssid_len = + nla_len(ssid); + } + if (bssid) { + if (nla_len(bssid) != ETH_ALEN) { + err = -EINVAL; + goto out_free; + } + memcpy(request->match_sets[i].bssid, + nla_data(bssid), ETH_ALEN); } - memcpy(request->match_sets[i].ssid.ssid, - nla_data(ssid), nla_len(ssid)); - request->match_sets[i].ssid.ssid_len = - nla_len(ssid); + /* special attribute - old implementation w/a */ request->match_sets[i].rssi_thold = default_match_rssi; @@ -7336,14 +7362,16 @@ static int nl80211_start_sched_scan(struct sk_buff *skb, struct net_device *dev = info->user_ptr[1]; struct wireless_dev *wdev = dev->ieee80211_ptr; struct cfg80211_sched_scan_request *sched_scan_req; + bool want_multi; int err; - if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) || - !rdev->ops->sched_scan_start) + if (!rdev->wiphy.max_sched_scan_reqs || !rdev->ops->sched_scan_start) return -EOPNOTSUPP; - if (rdev->sched_scan_req) - return -EINPROGRESS; + want_multi = info->attrs[NL80211_ATTR_SCHED_SCAN_MULTI]; + err = cfg80211_sched_scan_req_possible(rdev, want_multi); + if (err) + return err; sched_scan_req = nl80211_parse_sched_scan(&rdev->wiphy, wdev, info->attrs, @@ -7353,6 +7381,14 @@ static int nl80211_start_sched_scan(struct sk_buff *skb, if (err) goto out_err; + /* leave request id zero for legacy request + * or if driver does not support multi-scheduled scan + */ + if (want_multi && rdev->wiphy.max_sched_scan_reqs > 1) { + while (!sched_scan_req->reqid) + sched_scan_req->reqid = rdev->wiphy.cookie_counter++; + } + err = rdev_sched_scan_start(rdev, dev, sched_scan_req); if (err) goto out_free; @@ -7363,7 +7399,7 @@ static int nl80211_start_sched_scan(struct sk_buff *skb, if (info->attrs[NL80211_ATTR_SOCKET_OWNER]) sched_scan_req->owner_nlportid = info->snd_portid; - rcu_assign_pointer(rdev->sched_scan_req, sched_scan_req); + cfg80211_add_sched_scan_req(rdev, sched_scan_req); nl80211_send_sched_scan(sched_scan_req, NL80211_CMD_START_SCHED_SCAN); return 0; @@ -7377,13 +7413,27 @@ out_err: static int nl80211_stop_sched_scan(struct sk_buff *skb, struct genl_info *info) { + struct cfg80211_sched_scan_request *req; struct cfg80211_registered_device *rdev = info->user_ptr[0]; + u64 cookie; - if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) || - !rdev->ops->sched_scan_stop) + if (!rdev->wiphy.max_sched_scan_reqs || !rdev->ops->sched_scan_stop) return -EOPNOTSUPP; - return __cfg80211_stop_sched_scan(rdev, false); + if (info->attrs[NL80211_ATTR_COOKIE]) { + cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]); + return __cfg80211_stop_sched_scan(rdev, cookie, false); + } + + req = list_first_or_null_rcu(&rdev->sched_scan_req_list, + struct cfg80211_sched_scan_request, + list); + if (!req || req->reqid || + (req->owner_nlportid && + req->owner_nlportid != info->snd_portid)) + return -ENOENT; + + return cfg80211_stop_sched_scan_req(rdev, req, false); } static int nl80211_start_radar_detection(struct sk_buff *skb, @@ -13596,14 +13646,14 @@ void nl80211_send_connect_result(struct cfg80211_registered_device *rdev, } void nl80211_send_roamed(struct cfg80211_registered_device *rdev, - struct net_device *netdev, const u8 *bssid, - const u8 *req_ie, size_t req_ie_len, - const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp) + struct net_device *netdev, + struct cfg80211_roam_info *info, gfp_t gfp) { struct sk_buff *msg; void *hdr; + const u8 *bssid = info->bss ? info->bss->bssid : info->bssid; - msg = nlmsg_new(100 + req_ie_len + resp_ie_len, gfp); + msg = nlmsg_new(100 + info->req_ie_len + info->resp_ie_len, gfp); if (!msg) return; @@ -13616,10 +13666,12 @@ void nl80211_send_roamed(struct cfg80211_registered_device *rdev, if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) || - (req_ie && - nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) || - (resp_ie && - nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie))) + (info->req_ie && + nla_put(msg, NL80211_ATTR_REQ_IE, info->req_ie_len, + info->req_ie)) || + (info->resp_ie && + nla_put(msg, NL80211_ATTR_RESP_IE, info->resp_ie_len, + info->resp_ie))) goto nla_put_failure; genlmsg_end(msg, hdr); @@ -14883,26 +14935,26 @@ static int nl80211_netlink_notify(struct notifier_block * nb, rcu_read_lock(); list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) { - bool schedule_destroy_work = false; - struct cfg80211_sched_scan_request *sched_scan_req = - rcu_dereference(rdev->sched_scan_req); - - if (sched_scan_req && notify->portid && - sched_scan_req->owner_nlportid == notify->portid) { - sched_scan_req->owner_nlportid = 0; + struct cfg80211_sched_scan_request *sched_scan_req; - if (rdev->ops->sched_scan_stop && - rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) + list_for_each_entry_rcu(sched_scan_req, + &rdev->sched_scan_req_list, + list) { + if (sched_scan_req->owner_nlportid == notify->portid) { + sched_scan_req->nl_owner_dead = true; schedule_work(&rdev->sched_scan_stop_wk); + } } list_for_each_entry_rcu(wdev, &rdev->wiphy.wdev_list, list) { cfg80211_mlme_unregister_socket(wdev, notify->portid); - if (wdev->owner_nlportid == notify->portid) - schedule_destroy_work = true; - else if (wdev->conn_owner_nlportid == notify->portid) + if (wdev->owner_nlportid == notify->portid) { + wdev->nl_owner_dead = true; + schedule_work(&rdev->destroy_work); + } else if (wdev->conn_owner_nlportid == notify->portid) { schedule_work(&wdev->disconnect_wk); + } } spin_lock_bh(&rdev->beacon_registrations_lock); @@ -14915,19 +14967,6 @@ static int nl80211_netlink_notify(struct notifier_block * nb, } } spin_unlock_bh(&rdev->beacon_registrations_lock); - - if (schedule_destroy_work) { - struct cfg80211_iface_destroy *destroy; - - destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC); - if (destroy) { - destroy->nlportid = notify->portid; - spin_lock(&rdev->destroy_list_lock); - list_add(&destroy->list, &rdev->destroy_list); - spin_unlock(&rdev->destroy_list_lock); - schedule_work(&rdev->destroy_work); - } - } } rcu_read_unlock(); diff --git a/net/wireless/nl80211.h b/net/wireless/nl80211.h index d5f6860e62ab..b96933322077 100644 --- a/net/wireless/nl80211.h +++ b/net/wireless/nl80211.h @@ -56,9 +56,8 @@ void nl80211_send_connect_result(struct cfg80211_registered_device *rdev, struct cfg80211_connect_resp_params *params, gfp_t gfp); void nl80211_send_roamed(struct cfg80211_registered_device *rdev, - struct net_device *netdev, const u8 *bssid, - const u8 *req_ie, size_t req_ie_len, - const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp); + struct net_device *netdev, + struct cfg80211_roam_info *info, gfp_t gfp); void nl80211_send_disconnected(struct cfg80211_registered_device *rdev, struct net_device *netdev, u16 reason, const u8 *ie, size_t ie_len, bool from_ap); diff --git a/net/wireless/rdev-ops.h b/net/wireless/rdev-ops.h index e4a99989dd06..0598c1e5d0ad 100644 --- a/net/wireless/rdev-ops.h +++ b/net/wireless/rdev-ops.h @@ -813,18 +813,18 @@ rdev_sched_scan_start(struct cfg80211_registered_device *rdev, struct cfg80211_sched_scan_request *request) { int ret; - trace_rdev_sched_scan_start(&rdev->wiphy, dev, request); + trace_rdev_sched_scan_start(&rdev->wiphy, dev, request->reqid); ret = rdev->ops->sched_scan_start(&rdev->wiphy, dev, request); trace_rdev_return_int(&rdev->wiphy, ret); return ret; } static inline int rdev_sched_scan_stop(struct cfg80211_registered_device *rdev, - struct net_device *dev) + struct net_device *dev, u64 reqid) { int ret; - trace_rdev_sched_scan_stop(&rdev->wiphy, dev); - ret = rdev->ops->sched_scan_stop(&rdev->wiphy, dev); + trace_rdev_sched_scan_stop(&rdev->wiphy, dev, reqid); + ret = rdev->ops->sched_scan_stop(&rdev->wiphy, dev, reqid); trace_rdev_return_int(&rdev->wiphy, ret); return ret; } diff --git a/net/wireless/reg.c b/net/wireless/reg.c index a38f315819cd..5fae296a6a58 100644 --- a/net/wireless/reg.c +++ b/net/wireless/reg.c @@ -3244,9 +3244,6 @@ void regulatory_propagate_dfs_state(struct wiphy *wiphy, if (WARN_ON(!cfg80211_chandef_valid(chandef))) return; - if (WARN_ON(!(chandef->chan->flags & IEEE80211_CHAN_RADAR))) - return; - list_for_each_entry(rdev, &cfg80211_rdev_list, list) { if (wiphy == &rdev->wiphy) continue; diff --git a/net/wireless/scan.c b/net/wireless/scan.c index 6f4996c0f4df..14d5f0c8c45f 100644 --- a/net/wireless/scan.c +++ b/net/wireless/scan.c @@ -300,92 +300,168 @@ void cfg80211_scan_done(struct cfg80211_scan_request *request, } EXPORT_SYMBOL(cfg80211_scan_done); -void __cfg80211_sched_scan_results(struct work_struct *wk) +void cfg80211_add_sched_scan_req(struct cfg80211_registered_device *rdev, + struct cfg80211_sched_scan_request *req) { - struct cfg80211_registered_device *rdev; - struct cfg80211_sched_scan_request *request; + ASSERT_RTNL(); - rdev = container_of(wk, struct cfg80211_registered_device, - sched_scan_results_wk); + list_add_rcu(&req->list, &rdev->sched_scan_req_list); +} - rtnl_lock(); +static void cfg80211_del_sched_scan_req(struct cfg80211_registered_device *rdev, + struct cfg80211_sched_scan_request *req) +{ + ASSERT_RTNL(); - request = rtnl_dereference(rdev->sched_scan_req); + list_del_rcu(&req->list); + kfree_rcu(req, rcu_head); +} - /* we don't have sched_scan_req anymore if the scan is stopping */ - if (request) { - if (request->flags & NL80211_SCAN_FLAG_FLUSH) { - /* flush entries from previous scans */ - spin_lock_bh(&rdev->bss_lock); - __cfg80211_bss_expire(rdev, request->scan_start); - spin_unlock_bh(&rdev->bss_lock); - request->scan_start = jiffies; - } - nl80211_send_sched_scan(request, NL80211_CMD_SCHED_SCAN_RESULTS); +static struct cfg80211_sched_scan_request * +cfg80211_find_sched_scan_req(struct cfg80211_registered_device *rdev, u64 reqid) +{ + struct cfg80211_sched_scan_request *pos; + + ASSERT_RTNL(); + + list_for_each_entry(pos, &rdev->sched_scan_req_list, list) { + if (pos->reqid == reqid) + return pos; } + return NULL; +} + +/* + * Determines if a scheduled scan request can be handled. When a legacy + * scheduled scan is running no other scheduled scan is allowed regardless + * whether the request is for legacy or multi-support scan. When a multi-support + * scheduled scan is running a request for legacy scan is not allowed. In this + * case a request for multi-support scan can be handled if resources are + * available, ie. struct wiphy::max_sched_scan_reqs limit is not yet reached. + */ +int cfg80211_sched_scan_req_possible(struct cfg80211_registered_device *rdev, + bool want_multi) +{ + struct cfg80211_sched_scan_request *pos; + int i = 0; + + list_for_each_entry(pos, &rdev->sched_scan_req_list, list) { + /* request id zero means legacy in progress */ + if (!i && !pos->reqid) + return -EINPROGRESS; + i++; + } + + if (i) { + /* no legacy allowed when multi request(s) are active */ + if (!want_multi) + return -EINPROGRESS; + + /* resource limit reached */ + if (i == rdev->wiphy.max_sched_scan_reqs) + return -ENOSPC; + } + return 0; +} + +void cfg80211_sched_scan_results_wk(struct work_struct *work) +{ + struct cfg80211_registered_device *rdev; + struct cfg80211_sched_scan_request *req, *tmp; + rdev = container_of(work, struct cfg80211_registered_device, + sched_scan_res_wk); + + rtnl_lock(); + list_for_each_entry_safe(req, tmp, &rdev->sched_scan_req_list, list) { + if (req->report_results) { + req->report_results = false; + if (req->flags & NL80211_SCAN_FLAG_FLUSH) { + /* flush entries from previous scans */ + spin_lock_bh(&rdev->bss_lock); + __cfg80211_bss_expire(rdev, req->scan_start); + spin_unlock_bh(&rdev->bss_lock); + req->scan_start = jiffies; + } + nl80211_send_sched_scan(req, + NL80211_CMD_SCHED_SCAN_RESULTS); + } + } rtnl_unlock(); } -void cfg80211_sched_scan_results(struct wiphy *wiphy) +void cfg80211_sched_scan_results(struct wiphy *wiphy, u64 reqid) { - trace_cfg80211_sched_scan_results(wiphy); + struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); + struct cfg80211_sched_scan_request *request; + + trace_cfg80211_sched_scan_results(wiphy, reqid); /* ignore if we're not scanning */ - if (rcu_access_pointer(wiphy_to_rdev(wiphy)->sched_scan_req)) - queue_work(cfg80211_wq, - &wiphy_to_rdev(wiphy)->sched_scan_results_wk); + rtnl_lock(); + request = cfg80211_find_sched_scan_req(rdev, reqid); + if (request) { + request->report_results = true; + queue_work(cfg80211_wq, &rdev->sched_scan_res_wk); + } + rtnl_unlock(); } EXPORT_SYMBOL(cfg80211_sched_scan_results); -void cfg80211_sched_scan_stopped_rtnl(struct wiphy *wiphy) +void cfg80211_sched_scan_stopped_rtnl(struct wiphy *wiphy, u64 reqid) { struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); ASSERT_RTNL(); - trace_cfg80211_sched_scan_stopped(wiphy); + trace_cfg80211_sched_scan_stopped(wiphy, reqid); - __cfg80211_stop_sched_scan(rdev, true); + __cfg80211_stop_sched_scan(rdev, reqid, true); } EXPORT_SYMBOL(cfg80211_sched_scan_stopped_rtnl); -void cfg80211_sched_scan_stopped(struct wiphy *wiphy) +void cfg80211_sched_scan_stopped(struct wiphy *wiphy, u64 reqid) { rtnl_lock(); - cfg80211_sched_scan_stopped_rtnl(wiphy); + cfg80211_sched_scan_stopped_rtnl(wiphy, reqid); rtnl_unlock(); } EXPORT_SYMBOL(cfg80211_sched_scan_stopped); -int __cfg80211_stop_sched_scan(struct cfg80211_registered_device *rdev, - bool driver_initiated) +int cfg80211_stop_sched_scan_req(struct cfg80211_registered_device *rdev, + struct cfg80211_sched_scan_request *req, + bool driver_initiated) { - struct cfg80211_sched_scan_request *sched_scan_req; - struct net_device *dev; - ASSERT_RTNL(); - if (!rdev->sched_scan_req) - return -ENOENT; - - sched_scan_req = rtnl_dereference(rdev->sched_scan_req); - dev = sched_scan_req->dev; - if (!driver_initiated) { - int err = rdev_sched_scan_stop(rdev, dev); + int err = rdev_sched_scan_stop(rdev, req->dev, req->reqid); if (err) return err; } - nl80211_send_sched_scan(sched_scan_req, NL80211_CMD_SCHED_SCAN_STOPPED); + nl80211_send_sched_scan(req, NL80211_CMD_SCHED_SCAN_STOPPED); - RCU_INIT_POINTER(rdev->sched_scan_req, NULL); - kfree_rcu(sched_scan_req, rcu_head); + cfg80211_del_sched_scan_req(rdev, req); return 0; } +int __cfg80211_stop_sched_scan(struct cfg80211_registered_device *rdev, + u64 reqid, bool driver_initiated) +{ + struct cfg80211_sched_scan_request *sched_scan_req; + + ASSERT_RTNL(); + + sched_scan_req = cfg80211_find_sched_scan_req(rdev, reqid); + if (!sched_scan_req) + return -ENOENT; + + return cfg80211_stop_sched_scan_req(rdev, sched_scan_req, + driver_initiated); +} + void cfg80211_bss_age(struct cfg80211_registered_device *rdev, unsigned long age_secs) { diff --git a/net/wireless/sme.c b/net/wireless/sme.c index 6459bb7c21f7..532a0007ce82 100644 --- a/net/wireless/sme.c +++ b/net/wireless/sme.c @@ -5,6 +5,7 @@ * * Copyright 2009 Johannes Berg <johannes@sipsolutions.net> * Copyright (C) 2009 Intel Corporation. All rights reserved. + * Copyright 2017 Intel Deutschland GmbH */ #include <linux/etherdevice.h> @@ -870,9 +871,7 @@ EXPORT_SYMBOL(cfg80211_connect_done); /* Consumes bss object one way or another */ void __cfg80211_roamed(struct wireless_dev *wdev, - struct cfg80211_bss *bss, - const u8 *req_ie, size_t req_ie_len, - const u8 *resp_ie, size_t resp_ie_len) + struct cfg80211_roam_info *info) { #ifdef CONFIG_CFG80211_WEXT union iwreq_data wrqu; @@ -890,97 +889,84 @@ void __cfg80211_roamed(struct wireless_dev *wdev, cfg80211_put_bss(wdev->wiphy, &wdev->current_bss->pub); wdev->current_bss = NULL; - cfg80211_hold_bss(bss_from_pub(bss)); - wdev->current_bss = bss_from_pub(bss); + if (WARN_ON(!info->bss)) + return; + + cfg80211_hold_bss(bss_from_pub(info->bss)); + wdev->current_bss = bss_from_pub(info->bss); nl80211_send_roamed(wiphy_to_rdev(wdev->wiphy), - wdev->netdev, bss->bssid, - req_ie, req_ie_len, resp_ie, resp_ie_len, - GFP_KERNEL); + wdev->netdev, info, GFP_KERNEL); #ifdef CONFIG_CFG80211_WEXT - if (req_ie) { + if (info->req_ie) { memset(&wrqu, 0, sizeof(wrqu)); - wrqu.data.length = req_ie_len; + wrqu.data.length = info->req_ie_len; wireless_send_event(wdev->netdev, IWEVASSOCREQIE, - &wrqu, req_ie); + &wrqu, info->req_ie); } - if (resp_ie) { + if (info->resp_ie) { memset(&wrqu, 0, sizeof(wrqu)); - wrqu.data.length = resp_ie_len; + wrqu.data.length = info->resp_ie_len; wireless_send_event(wdev->netdev, IWEVASSOCRESPIE, - &wrqu, resp_ie); + &wrqu, info->resp_ie); } memset(&wrqu, 0, sizeof(wrqu)); wrqu.ap_addr.sa_family = ARPHRD_ETHER; - memcpy(wrqu.ap_addr.sa_data, bss->bssid, ETH_ALEN); - memcpy(wdev->wext.prev_bssid, bss->bssid, ETH_ALEN); + memcpy(wrqu.ap_addr.sa_data, info->bss->bssid, ETH_ALEN); + memcpy(wdev->wext.prev_bssid, info->bss->bssid, ETH_ALEN); wdev->wext.prev_bssid_valid = true; wireless_send_event(wdev->netdev, SIOCGIWAP, &wrqu, NULL); #endif return; out: - cfg80211_put_bss(wdev->wiphy, bss); -} - -void cfg80211_roamed(struct net_device *dev, - struct ieee80211_channel *channel, - const u8 *bssid, - const u8 *req_ie, size_t req_ie_len, - const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp) -{ - struct wireless_dev *wdev = dev->ieee80211_ptr; - struct cfg80211_bss *bss; - - bss = cfg80211_get_bss(wdev->wiphy, channel, bssid, wdev->ssid, - wdev->ssid_len, - wdev->conn_bss_type, IEEE80211_PRIVACY_ANY); - if (WARN_ON(!bss)) - return; - - cfg80211_roamed_bss(dev, bss, req_ie, req_ie_len, resp_ie, - resp_ie_len, gfp); + cfg80211_put_bss(wdev->wiphy, info->bss); } -EXPORT_SYMBOL(cfg80211_roamed); -/* Consumes bss object one way or another */ -void cfg80211_roamed_bss(struct net_device *dev, - struct cfg80211_bss *bss, const u8 *req_ie, - size_t req_ie_len, const u8 *resp_ie, - size_t resp_ie_len, gfp_t gfp) +/* Consumes info->bss object one way or another */ +void cfg80211_roamed(struct net_device *dev, struct cfg80211_roam_info *info, + gfp_t gfp) { struct wireless_dev *wdev = dev->ieee80211_ptr; struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); struct cfg80211_event *ev; unsigned long flags; - if (WARN_ON(!bss)) + if (!info->bss) { + info->bss = cfg80211_get_bss(wdev->wiphy, info->channel, + info->bssid, wdev->ssid, + wdev->ssid_len, + wdev->conn_bss_type, + IEEE80211_PRIVACY_ANY); + } + + if (WARN_ON(!info->bss)) return; - ev = kzalloc(sizeof(*ev) + req_ie_len + resp_ie_len, gfp); + ev = kzalloc(sizeof(*ev) + info->req_ie_len + info->resp_ie_len, gfp); if (!ev) { - cfg80211_put_bss(wdev->wiphy, bss); + cfg80211_put_bss(wdev->wiphy, info->bss); return; } ev->type = EVENT_ROAMED; ev->rm.req_ie = ((u8 *)ev) + sizeof(*ev); - ev->rm.req_ie_len = req_ie_len; - memcpy((void *)ev->rm.req_ie, req_ie, req_ie_len); - ev->rm.resp_ie = ((u8 *)ev) + sizeof(*ev) + req_ie_len; - ev->rm.resp_ie_len = resp_ie_len; - memcpy((void *)ev->rm.resp_ie, resp_ie, resp_ie_len); - ev->rm.bss = bss; + ev->rm.req_ie_len = info->req_ie_len; + memcpy((void *)ev->rm.req_ie, info->req_ie, info->req_ie_len); + ev->rm.resp_ie = ((u8 *)ev) + sizeof(*ev) + info->req_ie_len; + ev->rm.resp_ie_len = info->resp_ie_len; + memcpy((void *)ev->rm.resp_ie, info->resp_ie, info->resp_ie_len); + ev->rm.bss = info->bss; spin_lock_irqsave(&wdev->event_lock, flags); list_add_tail(&ev->list, &wdev->event_list); spin_unlock_irqrestore(&wdev->event_lock, flags); queue_work(cfg80211_wq, &rdev->event_work); } -EXPORT_SYMBOL(cfg80211_roamed_bss); +EXPORT_SYMBOL(cfg80211_roamed); void __cfg80211_disconnected(struct net_device *dev, const u8 *ie, size_t ie_len, u16 reason, bool from_ap) diff --git a/net/wireless/trace.h b/net/wireless/trace.h index fd55786f0462..ca8b2059f92c 100644 --- a/net/wireless/trace.h +++ b/net/wireless/trace.h @@ -576,11 +576,6 @@ DEFINE_EVENT(wiphy_netdev_evt, rdev_stop_ap, TP_ARGS(wiphy, netdev) ); -DEFINE_EVENT(wiphy_netdev_evt, rdev_sched_scan_stop, - TP_PROTO(struct wiphy *wiphy, struct net_device *netdev), - TP_ARGS(wiphy, netdev) -); - DEFINE_EVENT(wiphy_netdev_evt, rdev_set_rekey_data, TP_PROTO(struct wiphy *wiphy, struct net_device *netdev), TP_ARGS(wiphy, netdev) @@ -1610,20 +1605,31 @@ DEFINE_EVENT(tx_rx_evt, rdev_set_antenna, TP_ARGS(wiphy, rx, tx) ); -TRACE_EVENT(rdev_sched_scan_start, - TP_PROTO(struct wiphy *wiphy, struct net_device *netdev, - struct cfg80211_sched_scan_request *request), - TP_ARGS(wiphy, netdev, request), +DECLARE_EVENT_CLASS(wiphy_netdev_id_evt, + TP_PROTO(struct wiphy *wiphy, struct net_device *netdev, u64 id), + TP_ARGS(wiphy, netdev, id), TP_STRUCT__entry( WIPHY_ENTRY NETDEV_ENTRY + __field(u64, id) ), TP_fast_assign( WIPHY_ASSIGN; NETDEV_ASSIGN; + __entry->id = id; ), - TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT, - WIPHY_PR_ARG, NETDEV_PR_ARG) + TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT ", id: %llu", + WIPHY_PR_ARG, NETDEV_PR_ARG, __entry->id) +); + +DEFINE_EVENT(wiphy_netdev_id_evt, rdev_sched_scan_start, + TP_PROTO(struct wiphy *wiphy, struct net_device *netdev, u64 id), + TP_ARGS(wiphy, netdev, id) +); + +DEFINE_EVENT(wiphy_netdev_id_evt, rdev_sched_scan_stop, + TP_PROTO(struct wiphy *wiphy, struct net_device *netdev, u64 id), + TP_ARGS(wiphy, netdev, id) ); TRACE_EVENT(rdev_tdls_mgmt, @@ -2814,14 +2820,28 @@ TRACE_EVENT(cfg80211_scan_done, MAC_PR_ARG(tsf_bssid)) ); -DEFINE_EVENT(wiphy_only_evt, cfg80211_sched_scan_results, - TP_PROTO(struct wiphy *wiphy), - TP_ARGS(wiphy) +DECLARE_EVENT_CLASS(wiphy_id_evt, + TP_PROTO(struct wiphy *wiphy, u64 id), + TP_ARGS(wiphy, id), + TP_STRUCT__entry( + WIPHY_ENTRY + __field(u64, id) + ), + TP_fast_assign( + WIPHY_ASSIGN; + __entry->id = id; + ), + TP_printk(WIPHY_PR_FMT ", id: %llu", WIPHY_PR_ARG, __entry->id) ); -DEFINE_EVENT(wiphy_only_evt, cfg80211_sched_scan_stopped, - TP_PROTO(struct wiphy *wiphy), - TP_ARGS(wiphy) +DEFINE_EVENT(wiphy_id_evt, cfg80211_sched_scan_stopped, + TP_PROTO(struct wiphy *wiphy, u64 id), + TP_ARGS(wiphy, id) +); + +DEFINE_EVENT(wiphy_id_evt, cfg80211_sched_scan_results, + TP_PROTO(struct wiphy *wiphy, u64 id), + TP_ARGS(wiphy, id) ); TRACE_EVENT(cfg80211_get_bss, diff --git a/net/wireless/util.c b/net/wireless/util.c index a46bc42d0910..7198373e2920 100644 --- a/net/wireless/util.c +++ b/net/wireless/util.c @@ -946,9 +946,7 @@ void cfg80211_process_wdev_events(struct wireless_dev *wdev) ev->cr.status == WLAN_STATUS_SUCCESS); break; case EVENT_ROAMED: - __cfg80211_roamed(wdev, ev->rm.bss, ev->rm.req_ie, - ev->rm.req_ie_len, ev->rm.resp_ie, - ev->rm.resp_ie_len); + __cfg80211_roamed(wdev, &ev->rm); break; case EVENT_DISCONNECTED: __cfg80211_disconnected(wdev->netdev, |