1d2912cb1SThomas Gleixner // SPDX-License-Identifier: GPL-2.0-only 2c2d1560aSJohannes Berg /* 3c2d1560aSJohannes Berg * Copyright 2002-2005, Instant802 Networks, Inc. 4c2d1560aSJohannes Berg * Copyright 2005-2006, Devicescape Software, Inc. 5c2d1560aSJohannes Berg * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz> 6c2d1560aSJohannes Berg * Copyright 2007 Johannes Berg <johannes@sipsolutions.net> 7d98ad83eSJohannes Berg * Copyright 2013-2014 Intel Mobile Communications GmbH 8da6a4352SJohannes Berg * Copyright (C) 2015-2017 Intel Deutschland GmbH 9c0058df7SShaul Triebitz * Copyright (C) 2018-2020 Intel Corporation 10c2d1560aSJohannes Berg * 11c2d1560aSJohannes Berg * utilities for mac80211 12c2d1560aSJohannes Berg */ 13c2d1560aSJohannes Berg 14c2d1560aSJohannes Berg #include <net/mac80211.h> 15c2d1560aSJohannes Berg #include <linux/netdevice.h> 16bc3b2d7fSPaul Gortmaker #include <linux/export.h> 17c2d1560aSJohannes Berg #include <linux/types.h> 18c2d1560aSJohannes Berg #include <linux/slab.h> 19c2d1560aSJohannes Berg #include <linux/skbuff.h> 20c2d1560aSJohannes Berg #include <linux/etherdevice.h> 21c2d1560aSJohannes Berg #include <linux/if_arp.h> 22c2d1560aSJohannes Berg #include <linux/bitmap.h> 23dd76986bSJohannes Berg #include <linux/crc32.h> 24881d966bSEric W. Biederman #include <net/net_namespace.h> 25c2d1560aSJohannes Berg #include <net/cfg80211.h> 26dabeb344SJohannes Berg #include <net/rtnetlink.h> 27c2d1560aSJohannes Berg 28c2d1560aSJohannes Berg #include "ieee80211_i.h" 2924487981SJohannes Berg #include "driver-ops.h" 302c8dccc7SJohannes Berg #include "rate.h" 31ee385855SLuis Carlos Cobo #include "mesh.h" 32c2d1560aSJohannes Berg #include "wme.h" 33f2753ddbSJohannes Berg #include "led.h" 34fffd0934SJohannes Berg #include "wep.h" 35c2d1560aSJohannes Berg 36c2d1560aSJohannes Berg /* privid for wiphys to determine whether they belong to us or not */ 378a47cea7SJohannes Berg const void *const mac80211_wiphy_privid = &mac80211_wiphy_privid; 38c2d1560aSJohannes Berg 399a95371aSLuis R. Rodriguez struct ieee80211_hw *wiphy_to_ieee80211_hw(struct wiphy *wiphy) 409a95371aSLuis R. Rodriguez { 419a95371aSLuis R. Rodriguez struct ieee80211_local *local; 429a95371aSLuis R. Rodriguez 439a95371aSLuis R. Rodriguez local = wiphy_priv(wiphy); 449a95371aSLuis R. Rodriguez return &local->hw; 459a95371aSLuis R. Rodriguez } 469a95371aSLuis R. Rodriguez EXPORT_SYMBOL(wiphy_to_ieee80211_hw); 47c2d1560aSJohannes Berg 485cf121c3SJohannes Berg void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx) 49c2d1560aSJohannes Berg { 50252b86c4SJohannes Berg struct sk_buff *skb; 512de8e0d9SJohannes Berg struct ieee80211_hdr *hdr; 52c2d1560aSJohannes Berg 53252b86c4SJohannes Berg skb_queue_walk(&tx->skbs, skb) { 542de8e0d9SJohannes Berg hdr = (struct ieee80211_hdr *) skb->data; 55c2d1560aSJohannes Berg hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED); 56252b86c4SJohannes Berg } 57c2d1560aSJohannes Berg } 58c2d1560aSJohannes Berg 5957fbcce3SJohannes Berg int ieee80211_frame_duration(enum nl80211_band band, size_t len, 60438b61b7SSimon Wunderlich int rate, int erp, int short_preamble, 61438b61b7SSimon Wunderlich int shift) 62c2d1560aSJohannes Berg { 63c2d1560aSJohannes Berg int dur; 64c2d1560aSJohannes Berg 65c2d1560aSJohannes Berg /* calculate duration (in microseconds, rounded up to next higher 66c2d1560aSJohannes Berg * integer if it includes a fractional microsecond) to send frame of 67c2d1560aSJohannes Berg * len bytes (does not include FCS) at the given rate. Duration will 68c2d1560aSJohannes Berg * also include SIFS. 69c2d1560aSJohannes Berg * 70c2d1560aSJohannes Berg * rate is in 100 kbps, so divident is multiplied by 10 in the 71c2d1560aSJohannes Berg * DIV_ROUND_UP() operations. 72438b61b7SSimon Wunderlich * 73438b61b7SSimon Wunderlich * shift may be 2 for 5 MHz channels or 1 for 10 MHz channels, and 74438b61b7SSimon Wunderlich * is assumed to be 0 otherwise. 75c2d1560aSJohannes Berg */ 76c2d1560aSJohannes Berg 7757fbcce3SJohannes Berg if (band == NL80211_BAND_5GHZ || erp) { 78c2d1560aSJohannes Berg /* 79c2d1560aSJohannes Berg * OFDM: 80c2d1560aSJohannes Berg * 81c2d1560aSJohannes Berg * N_DBPS = DATARATE x 4 82c2d1560aSJohannes Berg * N_SYM = Ceiling((16+8xLENGTH+6) / N_DBPS) 83c2d1560aSJohannes Berg * (16 = SIGNAL time, 6 = tail bits) 84c2d1560aSJohannes Berg * TXTIME = T_PREAMBLE + T_SIGNAL + T_SYM x N_SYM + Signal Ext 85c2d1560aSJohannes Berg * 86c2d1560aSJohannes Berg * T_SYM = 4 usec 87438b61b7SSimon Wunderlich * 802.11a - 18.5.2: aSIFSTime = 16 usec 88c2d1560aSJohannes Berg * 802.11g - 19.8.4: aSIFSTime = 10 usec + 89c2d1560aSJohannes Berg * signal ext = 6 usec 90c2d1560aSJohannes Berg */ 91c2d1560aSJohannes Berg dur = 16; /* SIFS + signal ext */ 92438b61b7SSimon Wunderlich dur += 16; /* IEEE 802.11-2012 18.3.2.4: T_PREAMBLE = 16 usec */ 93438b61b7SSimon Wunderlich dur += 4; /* IEEE 802.11-2012 18.3.2.4: T_SIGNAL = 4 usec */ 94438b61b7SSimon Wunderlich 95438b61b7SSimon Wunderlich /* IEEE 802.11-2012 18.3.2.4: all values above are: 96438b61b7SSimon Wunderlich * * times 4 for 5 MHz 97438b61b7SSimon Wunderlich * * times 2 for 10 MHz 98438b61b7SSimon Wunderlich */ 99438b61b7SSimon Wunderlich dur *= 1 << shift; 1002103dec1SSimon Wunderlich 1012103dec1SSimon Wunderlich /* rates should already consider the channel bandwidth, 1022103dec1SSimon Wunderlich * don't apply divisor again. 1032103dec1SSimon Wunderlich */ 1042103dec1SSimon Wunderlich dur += 4 * DIV_ROUND_UP((16 + 8 * (len + 4) + 6) * 10, 1052103dec1SSimon Wunderlich 4 * rate); /* T_SYM x N_SYM */ 106c2d1560aSJohannes Berg } else { 107c2d1560aSJohannes Berg /* 108c2d1560aSJohannes Berg * 802.11b or 802.11g with 802.11b compatibility: 109c2d1560aSJohannes Berg * 18.3.4: TXTIME = PreambleLength + PLCPHeaderTime + 110c2d1560aSJohannes Berg * Ceiling(((LENGTH+PBCC)x8)/DATARATE). PBCC=0. 111c2d1560aSJohannes Berg * 112c2d1560aSJohannes Berg * 802.11 (DS): 15.3.3, 802.11b: 18.3.4 113c2d1560aSJohannes Berg * aSIFSTime = 10 usec 114c2d1560aSJohannes Berg * aPreambleLength = 144 usec or 72 usec with short preamble 115c2d1560aSJohannes Berg * aPLCPHeaderLength = 48 usec or 24 usec with short preamble 116c2d1560aSJohannes Berg */ 117c2d1560aSJohannes Berg dur = 10; /* aSIFSTime = 10 usec */ 118c2d1560aSJohannes Berg dur += short_preamble ? (72 + 24) : (144 + 48); 119c2d1560aSJohannes Berg 120c2d1560aSJohannes Berg dur += DIV_ROUND_UP(8 * (len + 4) * 10, rate); 121c2d1560aSJohannes Berg } 122c2d1560aSJohannes Berg 123c2d1560aSJohannes Berg return dur; 124c2d1560aSJohannes Berg } 125c2d1560aSJohannes Berg 126c2d1560aSJohannes Berg /* Exported duration function for driver use */ 12732bfd35dSJohannes Berg __le16 ieee80211_generic_frame_duration(struct ieee80211_hw *hw, 12832bfd35dSJohannes Berg struct ieee80211_vif *vif, 12957fbcce3SJohannes Berg enum nl80211_band band, 1308318d78aSJohannes Berg size_t frame_len, 1318318d78aSJohannes Berg struct ieee80211_rate *rate) 132c2d1560aSJohannes Berg { 13325d834e1SJohannes Berg struct ieee80211_sub_if_data *sdata; 134c2d1560aSJohannes Berg u16 dur; 135438b61b7SSimon Wunderlich int erp, shift = 0; 13625d834e1SJohannes Berg bool short_preamble = false; 137c2d1560aSJohannes Berg 1388318d78aSJohannes Berg erp = 0; 13925d834e1SJohannes Berg if (vif) { 14025d834e1SJohannes Berg sdata = vif_to_sdata(vif); 141bda3933aSJohannes Berg short_preamble = sdata->vif.bss_conf.use_short_preamble; 1428318d78aSJohannes Berg if (sdata->flags & IEEE80211_SDATA_OPERATING_GMODE) 1438318d78aSJohannes Berg erp = rate->flags & IEEE80211_RATE_ERP_G; 144438b61b7SSimon Wunderlich shift = ieee80211_vif_get_shift(vif); 14525d834e1SJohannes Berg } 1468318d78aSJohannes Berg 1474ee73f33SMichal Kazior dur = ieee80211_frame_duration(band, frame_len, rate->bitrate, erp, 148438b61b7SSimon Wunderlich short_preamble, shift); 149c2d1560aSJohannes Berg 150c2d1560aSJohannes Berg return cpu_to_le16(dur); 151c2d1560aSJohannes Berg } 152c2d1560aSJohannes Berg EXPORT_SYMBOL(ieee80211_generic_frame_duration); 153c2d1560aSJohannes Berg 15432bfd35dSJohannes Berg __le16 ieee80211_rts_duration(struct ieee80211_hw *hw, 15532bfd35dSJohannes Berg struct ieee80211_vif *vif, size_t frame_len, 156e039fa4aSJohannes Berg const struct ieee80211_tx_info *frame_txctl) 157c2d1560aSJohannes Berg { 158c2d1560aSJohannes Berg struct ieee80211_local *local = hw_to_local(hw); 159c2d1560aSJohannes Berg struct ieee80211_rate *rate; 16025d834e1SJohannes Berg struct ieee80211_sub_if_data *sdata; 161471b3efdSJohannes Berg bool short_preamble; 1622103dec1SSimon Wunderlich int erp, shift = 0, bitrate; 163c2d1560aSJohannes Berg u16 dur; 1642e92e6f2SJohannes Berg struct ieee80211_supported_band *sband; 1652e92e6f2SJohannes Berg 1664ee73f33SMichal Kazior sband = local->hw.wiphy->bands[frame_txctl->band]; 167c2d1560aSJohannes Berg 16825d834e1SJohannes Berg short_preamble = false; 1697e9ed188SDaniel Drake 170e039fa4aSJohannes Berg rate = &sband->bitrates[frame_txctl->control.rts_cts_rate_idx]; 1718318d78aSJohannes Berg 1728318d78aSJohannes Berg erp = 0; 17325d834e1SJohannes Berg if (vif) { 17425d834e1SJohannes Berg sdata = vif_to_sdata(vif); 175bda3933aSJohannes Berg short_preamble = sdata->vif.bss_conf.use_short_preamble; 1768318d78aSJohannes Berg if (sdata->flags & IEEE80211_SDATA_OPERATING_GMODE) 1778318d78aSJohannes Berg erp = rate->flags & IEEE80211_RATE_ERP_G; 178438b61b7SSimon Wunderlich shift = ieee80211_vif_get_shift(vif); 17925d834e1SJohannes Berg } 180c2d1560aSJohannes Berg 1812103dec1SSimon Wunderlich bitrate = DIV_ROUND_UP(rate->bitrate, 1 << shift); 1822103dec1SSimon Wunderlich 183c2d1560aSJohannes Berg /* CTS duration */ 1842103dec1SSimon Wunderlich dur = ieee80211_frame_duration(sband->band, 10, bitrate, 185438b61b7SSimon Wunderlich erp, short_preamble, shift); 186c2d1560aSJohannes Berg /* Data frame duration */ 1872103dec1SSimon Wunderlich dur += ieee80211_frame_duration(sband->band, frame_len, bitrate, 188438b61b7SSimon Wunderlich erp, short_preamble, shift); 189c2d1560aSJohannes Berg /* ACK duration */ 1902103dec1SSimon Wunderlich dur += ieee80211_frame_duration(sband->band, 10, bitrate, 191438b61b7SSimon Wunderlich erp, short_preamble, shift); 192c2d1560aSJohannes Berg 193c2d1560aSJohannes Berg return cpu_to_le16(dur); 194c2d1560aSJohannes Berg } 195c2d1560aSJohannes Berg EXPORT_SYMBOL(ieee80211_rts_duration); 196c2d1560aSJohannes Berg 19732bfd35dSJohannes Berg __le16 ieee80211_ctstoself_duration(struct ieee80211_hw *hw, 19832bfd35dSJohannes Berg struct ieee80211_vif *vif, 199c2d1560aSJohannes Berg size_t frame_len, 200e039fa4aSJohannes Berg const struct ieee80211_tx_info *frame_txctl) 201c2d1560aSJohannes Berg { 202c2d1560aSJohannes Berg struct ieee80211_local *local = hw_to_local(hw); 203c2d1560aSJohannes Berg struct ieee80211_rate *rate; 20425d834e1SJohannes Berg struct ieee80211_sub_if_data *sdata; 205471b3efdSJohannes Berg bool short_preamble; 2062103dec1SSimon Wunderlich int erp, shift = 0, bitrate; 207c2d1560aSJohannes Berg u16 dur; 2082e92e6f2SJohannes Berg struct ieee80211_supported_band *sband; 2092e92e6f2SJohannes Berg 2104ee73f33SMichal Kazior sband = local->hw.wiphy->bands[frame_txctl->band]; 211c2d1560aSJohannes Berg 21225d834e1SJohannes Berg short_preamble = false; 2137e9ed188SDaniel Drake 214e039fa4aSJohannes Berg rate = &sband->bitrates[frame_txctl->control.rts_cts_rate_idx]; 2158318d78aSJohannes Berg erp = 0; 21625d834e1SJohannes Berg if (vif) { 21725d834e1SJohannes Berg sdata = vif_to_sdata(vif); 218bda3933aSJohannes Berg short_preamble = sdata->vif.bss_conf.use_short_preamble; 2198318d78aSJohannes Berg if (sdata->flags & IEEE80211_SDATA_OPERATING_GMODE) 2208318d78aSJohannes Berg erp = rate->flags & IEEE80211_RATE_ERP_G; 221438b61b7SSimon Wunderlich shift = ieee80211_vif_get_shift(vif); 22225d834e1SJohannes Berg } 223c2d1560aSJohannes Berg 2242103dec1SSimon Wunderlich bitrate = DIV_ROUND_UP(rate->bitrate, 1 << shift); 2252103dec1SSimon Wunderlich 226c2d1560aSJohannes Berg /* Data frame duration */ 2272103dec1SSimon Wunderlich dur = ieee80211_frame_duration(sband->band, frame_len, bitrate, 228438b61b7SSimon Wunderlich erp, short_preamble, shift); 229e039fa4aSJohannes Berg if (!(frame_txctl->flags & IEEE80211_TX_CTL_NO_ACK)) { 230c2d1560aSJohannes Berg /* ACK duration */ 2312103dec1SSimon Wunderlich dur += ieee80211_frame_duration(sband->band, 10, bitrate, 232438b61b7SSimon Wunderlich erp, short_preamble, shift); 233c2d1560aSJohannes Berg } 234c2d1560aSJohannes Berg 235c2d1560aSJohannes Berg return cpu_to_le16(dur); 236c2d1560aSJohannes Berg } 237c2d1560aSJohannes Berg EXPORT_SYMBOL(ieee80211_ctstoself_duration); 238c2d1560aSJohannes Berg 23921a5d4c3SManikanta Pubbisetty static void __ieee80211_wake_txqs(struct ieee80211_sub_if_data *sdata, int ac) 24021a5d4c3SManikanta Pubbisetty { 24121a5d4c3SManikanta Pubbisetty struct ieee80211_local *local = sdata->local; 24221a5d4c3SManikanta Pubbisetty struct ieee80211_vif *vif = &sdata->vif; 24321a5d4c3SManikanta Pubbisetty struct fq *fq = &local->fq; 24421a5d4c3SManikanta Pubbisetty struct ps_data *ps = NULL; 24521a5d4c3SManikanta Pubbisetty struct txq_info *txqi; 24621a5d4c3SManikanta Pubbisetty struct sta_info *sta; 24721a5d4c3SManikanta Pubbisetty int i; 24821a5d4c3SManikanta Pubbisetty 249d8dec42bSJohannes Berg local_bh_disable(); 250d8dec42bSJohannes Berg spin_lock(&fq->lock); 25121a5d4c3SManikanta Pubbisetty 25221a5d4c3SManikanta Pubbisetty if (sdata->vif.type == NL80211_IFTYPE_AP) 25321a5d4c3SManikanta Pubbisetty ps = &sdata->bss->ps; 25421a5d4c3SManikanta Pubbisetty 25521a5d4c3SManikanta Pubbisetty sdata->vif.txqs_stopped[ac] = false; 25621a5d4c3SManikanta Pubbisetty 25721a5d4c3SManikanta Pubbisetty list_for_each_entry_rcu(sta, &local->sta_list, list) { 25821a5d4c3SManikanta Pubbisetty if (sdata != sta->sdata) 25921a5d4c3SManikanta Pubbisetty continue; 26021a5d4c3SManikanta Pubbisetty 26121a5d4c3SManikanta Pubbisetty for (i = 0; i < ARRAY_SIZE(sta->sta.txq); i++) { 26221a5d4c3SManikanta Pubbisetty struct ieee80211_txq *txq = sta->sta.txq[i]; 26321a5d4c3SManikanta Pubbisetty 264a5ae3264SErik Stromdahl if (!txq) 265a5ae3264SErik Stromdahl continue; 266a5ae3264SErik Stromdahl 26721a5d4c3SManikanta Pubbisetty txqi = to_txq_info(txq); 26821a5d4c3SManikanta Pubbisetty 26921a5d4c3SManikanta Pubbisetty if (ac != txq->ac) 27021a5d4c3SManikanta Pubbisetty continue; 27121a5d4c3SManikanta Pubbisetty 27221a5d4c3SManikanta Pubbisetty if (!test_and_clear_bit(IEEE80211_TXQ_STOP_NETIF_TX, 27321a5d4c3SManikanta Pubbisetty &txqi->flags)) 27421a5d4c3SManikanta Pubbisetty continue; 27521a5d4c3SManikanta Pubbisetty 276d8dec42bSJohannes Berg spin_unlock(&fq->lock); 27721a5d4c3SManikanta Pubbisetty drv_wake_tx_queue(local, txqi); 278d8dec42bSJohannes Berg spin_lock(&fq->lock); 27921a5d4c3SManikanta Pubbisetty } 28021a5d4c3SManikanta Pubbisetty } 28121a5d4c3SManikanta Pubbisetty 28221a5d4c3SManikanta Pubbisetty if (!vif->txq) 28321a5d4c3SManikanta Pubbisetty goto out; 28421a5d4c3SManikanta Pubbisetty 28521a5d4c3SManikanta Pubbisetty txqi = to_txq_info(vif->txq); 28621a5d4c3SManikanta Pubbisetty 28721a5d4c3SManikanta Pubbisetty if (!test_and_clear_bit(IEEE80211_TXQ_STOP_NETIF_TX, &txqi->flags) || 28821a5d4c3SManikanta Pubbisetty (ps && atomic_read(&ps->num_sta_ps)) || ac != vif->txq->ac) 28921a5d4c3SManikanta Pubbisetty goto out; 29021a5d4c3SManikanta Pubbisetty 291d8dec42bSJohannes Berg spin_unlock(&fq->lock); 29221a5d4c3SManikanta Pubbisetty 29321a5d4c3SManikanta Pubbisetty drv_wake_tx_queue(local, txqi); 294d8dec42bSJohannes Berg local_bh_enable(); 29521a5d4c3SManikanta Pubbisetty return; 29621a5d4c3SManikanta Pubbisetty out: 297d8dec42bSJohannes Berg spin_unlock(&fq->lock); 298d8dec42bSJohannes Berg local_bh_enable(); 29921a5d4c3SManikanta Pubbisetty } 30021a5d4c3SManikanta Pubbisetty 301f6c7f03fSEmmanuel Grumbach static void 302f6c7f03fSEmmanuel Grumbach __releases(&local->queue_stop_reason_lock) 303f6c7f03fSEmmanuel Grumbach __acquires(&local->queue_stop_reason_lock) 304f6c7f03fSEmmanuel Grumbach _ieee80211_wake_txqs(struct ieee80211_local *local, unsigned long *flags) 30521a5d4c3SManikanta Pubbisetty { 30621a5d4c3SManikanta Pubbisetty struct ieee80211_sub_if_data *sdata; 30721a5d4c3SManikanta Pubbisetty int n_acs = IEEE80211_NUM_ACS; 30821a5d4c3SManikanta Pubbisetty int i; 30921a5d4c3SManikanta Pubbisetty 31021a5d4c3SManikanta Pubbisetty rcu_read_lock(); 31121a5d4c3SManikanta Pubbisetty 31221a5d4c3SManikanta Pubbisetty if (local->hw.queues < IEEE80211_NUM_ACS) 31321a5d4c3SManikanta Pubbisetty n_acs = 1; 31421a5d4c3SManikanta Pubbisetty 31521a5d4c3SManikanta Pubbisetty for (i = 0; i < local->hw.queues; i++) { 31621a5d4c3SManikanta Pubbisetty if (local->queue_stop_reasons[i]) 31721a5d4c3SManikanta Pubbisetty continue; 31821a5d4c3SManikanta Pubbisetty 319f6c7f03fSEmmanuel Grumbach spin_unlock_irqrestore(&local->queue_stop_reason_lock, *flags); 32021a5d4c3SManikanta Pubbisetty list_for_each_entry_rcu(sdata, &local->interfaces, list) { 32121a5d4c3SManikanta Pubbisetty int ac; 32221a5d4c3SManikanta Pubbisetty 32321a5d4c3SManikanta Pubbisetty for (ac = 0; ac < n_acs; ac++) { 32421a5d4c3SManikanta Pubbisetty int ac_queue = sdata->vif.hw_queue[ac]; 32521a5d4c3SManikanta Pubbisetty 32621a5d4c3SManikanta Pubbisetty if (ac_queue == i || 32721a5d4c3SManikanta Pubbisetty sdata->vif.cab_queue == i) 32821a5d4c3SManikanta Pubbisetty __ieee80211_wake_txqs(sdata, ac); 32921a5d4c3SManikanta Pubbisetty } 33021a5d4c3SManikanta Pubbisetty } 331f6c7f03fSEmmanuel Grumbach spin_lock_irqsave(&local->queue_stop_reason_lock, *flags); 33221a5d4c3SManikanta Pubbisetty } 33321a5d4c3SManikanta Pubbisetty 33421a5d4c3SManikanta Pubbisetty rcu_read_unlock(); 33521a5d4c3SManikanta Pubbisetty } 33621a5d4c3SManikanta Pubbisetty 337f6c7f03fSEmmanuel Grumbach void ieee80211_wake_txqs(unsigned long data) 338f6c7f03fSEmmanuel Grumbach { 339f6c7f03fSEmmanuel Grumbach struct ieee80211_local *local = (struct ieee80211_local *)data; 340f6c7f03fSEmmanuel Grumbach unsigned long flags; 341f6c7f03fSEmmanuel Grumbach 342f6c7f03fSEmmanuel Grumbach spin_lock_irqsave(&local->queue_stop_reason_lock, flags); 343f6c7f03fSEmmanuel Grumbach _ieee80211_wake_txqs(local, &flags); 344f6c7f03fSEmmanuel Grumbach spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); 345f6c7f03fSEmmanuel Grumbach } 346f6c7f03fSEmmanuel Grumbach 3473a25a8c8SJohannes Berg void ieee80211_propagate_queue_wake(struct ieee80211_local *local, int queue) 3483a25a8c8SJohannes Berg { 3493a25a8c8SJohannes Berg struct ieee80211_sub_if_data *sdata; 350a6f38ac3SJohannes Berg int n_acs = IEEE80211_NUM_ACS; 351a6f38ac3SJohannes Berg 35280a83cfcSMichal Kazior if (local->ops->wake_tx_queue) 35380a83cfcSMichal Kazior return; 35480a83cfcSMichal Kazior 355a6f38ac3SJohannes Berg if (local->hw.queues < IEEE80211_NUM_ACS) 356a6f38ac3SJohannes Berg n_acs = 1; 3573a25a8c8SJohannes Berg 3583a25a8c8SJohannes Berg list_for_each_entry_rcu(sdata, &local->interfaces, list) { 3593a25a8c8SJohannes Berg int ac; 3603a25a8c8SJohannes Berg 361f142c6b9SJohannes Berg if (!sdata->dev) 362f142c6b9SJohannes Berg continue; 363f142c6b9SJohannes Berg 3643a25a8c8SJohannes Berg if (sdata->vif.cab_queue != IEEE80211_INVAL_HW_QUEUE && 3653a25a8c8SJohannes Berg local->queue_stop_reasons[sdata->vif.cab_queue] != 0) 3663a25a8c8SJohannes Berg continue; 3673a25a8c8SJohannes Berg 368a6f38ac3SJohannes Berg for (ac = 0; ac < n_acs; ac++) { 3693a25a8c8SJohannes Berg int ac_queue = sdata->vif.hw_queue[ac]; 3703a25a8c8SJohannes Berg 3713a25a8c8SJohannes Berg if (ac_queue == queue || 3723a25a8c8SJohannes Berg (sdata->vif.cab_queue == queue && 3733a25a8c8SJohannes Berg local->queue_stop_reasons[ac_queue] == 0 && 3743a25a8c8SJohannes Berg skb_queue_empty(&local->pending[ac_queue]))) 3753a25a8c8SJohannes Berg netif_wake_subqueue(sdata->dev, ac); 3763a25a8c8SJohannes Berg } 3773a25a8c8SJohannes Berg } 3783a25a8c8SJohannes Berg } 3793a25a8c8SJohannes Berg 380ce7c9111SKalle Valo static void __ieee80211_wake_queue(struct ieee80211_hw *hw, int queue, 381cca07b00SLuciano Coelho enum queue_stop_reason reason, 382f6c7f03fSEmmanuel Grumbach bool refcounted, 383f6c7f03fSEmmanuel Grumbach unsigned long *flags) 384c2d1560aSJohannes Berg { 385c2d1560aSJohannes Berg struct ieee80211_local *local = hw_to_local(hw); 386c2d1560aSJohannes Berg 387b5878a2dSJohannes Berg trace_wake_queue(local, queue, reason); 388b5878a2dSJohannes Berg 389e4e72fb4SJohannes Berg if (WARN_ON(queue >= hw->queues)) 39096f5e66eSJohannes Berg return; 39196f5e66eSJohannes Berg 392ada15125SJohannes Berg if (!test_bit(reason, &local->queue_stop_reasons[queue])) 393ada15125SJohannes Berg return; 394ada15125SJohannes Berg 395856142cdSJohannes Berg if (!refcounted) { 396cca07b00SLuciano Coelho local->q_stop_reasons[queue][reason] = 0; 397856142cdSJohannes Berg } else { 398cca07b00SLuciano Coelho local->q_stop_reasons[queue][reason]--; 399856142cdSJohannes Berg if (WARN_ON(local->q_stop_reasons[queue][reason] < 0)) 400856142cdSJohannes Berg local->q_stop_reasons[queue][reason] = 0; 401856142cdSJohannes Berg } 402cca07b00SLuciano Coelho 403cca07b00SLuciano Coelho if (local->q_stop_reasons[queue][reason] == 0) 404ce7c9111SKalle Valo __clear_bit(reason, &local->queue_stop_reasons[queue]); 405ce7c9111SKalle Valo 406ce7c9111SKalle Valo if (local->queue_stop_reasons[queue] != 0) 407ce7c9111SKalle Valo /* someone still has this queue stopped */ 408ce7c9111SKalle Valo return; 409ce7c9111SKalle Valo 4107236fe29SJohannes Berg if (skb_queue_empty(&local->pending[queue])) { 411cf0277e7SJohannes Berg rcu_read_lock(); 4123a25a8c8SJohannes Berg ieee80211_propagate_queue_wake(local, queue); 413cf0277e7SJohannes Berg rcu_read_unlock(); 4147236fe29SJohannes Berg } else 4157236fe29SJohannes Berg tasklet_schedule(&local->tx_pending_tasklet); 41621a5d4c3SManikanta Pubbisetty 417f6c7f03fSEmmanuel Grumbach /* 418f6c7f03fSEmmanuel Grumbach * Calling _ieee80211_wake_txqs here can be a problem because it may 419f6c7f03fSEmmanuel Grumbach * release queue_stop_reason_lock which has been taken by 420f6c7f03fSEmmanuel Grumbach * __ieee80211_wake_queue's caller. It is certainly not very nice to 421f6c7f03fSEmmanuel Grumbach * release someone's lock, but it is fine because all the callers of 422f6c7f03fSEmmanuel Grumbach * __ieee80211_wake_queue call it right before releasing the lock. 423f6c7f03fSEmmanuel Grumbach */ 424f6c7f03fSEmmanuel Grumbach if (local->ops->wake_tx_queue) { 425f6c7f03fSEmmanuel Grumbach if (reason == IEEE80211_QUEUE_STOP_REASON_DRIVER) 42621a5d4c3SManikanta Pubbisetty tasklet_schedule(&local->wake_txqs_tasklet); 427f6c7f03fSEmmanuel Grumbach else 428f6c7f03fSEmmanuel Grumbach _ieee80211_wake_txqs(local, flags); 429f6c7f03fSEmmanuel Grumbach } 430c2d1560aSJohannes Berg } 431ce7c9111SKalle Valo 43296f5e66eSJohannes Berg void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue, 433cca07b00SLuciano Coelho enum queue_stop_reason reason, 434cca07b00SLuciano Coelho bool refcounted) 435ce7c9111SKalle Valo { 436ce7c9111SKalle Valo struct ieee80211_local *local = hw_to_local(hw); 437ce7c9111SKalle Valo unsigned long flags; 438ce7c9111SKalle Valo 439ce7c9111SKalle Valo spin_lock_irqsave(&local->queue_stop_reason_lock, flags); 440f6c7f03fSEmmanuel Grumbach __ieee80211_wake_queue(hw, queue, reason, refcounted, &flags); 441ce7c9111SKalle Valo spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); 442ce7c9111SKalle Valo } 443ce7c9111SKalle Valo 444ce7c9111SKalle Valo void ieee80211_wake_queue(struct ieee80211_hw *hw, int queue) 445ce7c9111SKalle Valo { 446ce7c9111SKalle Valo ieee80211_wake_queue_by_reason(hw, queue, 447cca07b00SLuciano Coelho IEEE80211_QUEUE_STOP_REASON_DRIVER, 448cca07b00SLuciano Coelho false); 449ce7c9111SKalle Valo } 450c2d1560aSJohannes Berg EXPORT_SYMBOL(ieee80211_wake_queue); 451c2d1560aSJohannes Berg 452ce7c9111SKalle Valo static void __ieee80211_stop_queue(struct ieee80211_hw *hw, int queue, 453cca07b00SLuciano Coelho enum queue_stop_reason reason, 454cca07b00SLuciano Coelho bool refcounted) 455c2d1560aSJohannes Berg { 456c2d1560aSJohannes Berg struct ieee80211_local *local = hw_to_local(hw); 457cf0277e7SJohannes Berg struct ieee80211_sub_if_data *sdata; 458a6f38ac3SJohannes Berg int n_acs = IEEE80211_NUM_ACS; 459c2d1560aSJohannes Berg 460b5878a2dSJohannes Berg trace_stop_queue(local, queue, reason); 461b5878a2dSJohannes Berg 462e4e72fb4SJohannes Berg if (WARN_ON(queue >= hw->queues)) 46396f5e66eSJohannes Berg return; 46496f5e66eSJohannes Berg 465cca07b00SLuciano Coelho if (!refcounted) 466cca07b00SLuciano Coelho local->q_stop_reasons[queue][reason] = 1; 467cca07b00SLuciano Coelho else 468cca07b00SLuciano Coelho local->q_stop_reasons[queue][reason]++; 469ada15125SJohannes Berg 470cca07b00SLuciano Coelho if (__test_and_set_bit(reason, &local->queue_stop_reasons[queue])) 471cca07b00SLuciano Coelho return; 472cf0277e7SJohannes Berg 473a6f38ac3SJohannes Berg if (local->hw.queues < IEEE80211_NUM_ACS) 474a6f38ac3SJohannes Berg n_acs = 1; 475a6f38ac3SJohannes Berg 476cf0277e7SJohannes Berg rcu_read_lock(); 4773a25a8c8SJohannes Berg list_for_each_entry_rcu(sdata, &local->interfaces, list) { 4783a25a8c8SJohannes Berg int ac; 4793a25a8c8SJohannes Berg 480f142c6b9SJohannes Berg if (!sdata->dev) 481f142c6b9SJohannes Berg continue; 482f142c6b9SJohannes Berg 483a6f38ac3SJohannes Berg for (ac = 0; ac < n_acs; ac++) { 4843a25a8c8SJohannes Berg if (sdata->vif.hw_queue[ac] == queue || 48521a5d4c3SManikanta Pubbisetty sdata->vif.cab_queue == queue) { 48621a5d4c3SManikanta Pubbisetty if (!local->ops->wake_tx_queue) { 4873a25a8c8SJohannes Berg netif_stop_subqueue(sdata->dev, ac); 48821a5d4c3SManikanta Pubbisetty continue; 48921a5d4c3SManikanta Pubbisetty } 49021a5d4c3SManikanta Pubbisetty spin_lock(&local->fq.lock); 49121a5d4c3SManikanta Pubbisetty sdata->vif.txqs_stopped[ac] = true; 49221a5d4c3SManikanta Pubbisetty spin_unlock(&local->fq.lock); 49321a5d4c3SManikanta Pubbisetty } 4943a25a8c8SJohannes Berg } 4953a25a8c8SJohannes Berg } 496cf0277e7SJohannes Berg rcu_read_unlock(); 497c2d1560aSJohannes Berg } 498ce7c9111SKalle Valo 49996f5e66eSJohannes Berg void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue, 500cca07b00SLuciano Coelho enum queue_stop_reason reason, 501cca07b00SLuciano Coelho bool refcounted) 502ce7c9111SKalle Valo { 503ce7c9111SKalle Valo struct ieee80211_local *local = hw_to_local(hw); 504ce7c9111SKalle Valo unsigned long flags; 505ce7c9111SKalle Valo 506ce7c9111SKalle Valo spin_lock_irqsave(&local->queue_stop_reason_lock, flags); 507cca07b00SLuciano Coelho __ieee80211_stop_queue(hw, queue, reason, refcounted); 508ce7c9111SKalle Valo spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); 509ce7c9111SKalle Valo } 510ce7c9111SKalle Valo 511ce7c9111SKalle Valo void ieee80211_stop_queue(struct ieee80211_hw *hw, int queue) 512ce7c9111SKalle Valo { 513ce7c9111SKalle Valo ieee80211_stop_queue_by_reason(hw, queue, 514cca07b00SLuciano Coelho IEEE80211_QUEUE_STOP_REASON_DRIVER, 515cca07b00SLuciano Coelho false); 516ce7c9111SKalle Valo } 517c2d1560aSJohannes Berg EXPORT_SYMBOL(ieee80211_stop_queue); 518c2d1560aSJohannes Berg 5198f77f384SJohannes Berg void ieee80211_add_pending_skb(struct ieee80211_local *local, 5208f77f384SJohannes Berg struct sk_buff *skb) 5218f77f384SJohannes Berg { 5228f77f384SJohannes Berg struct ieee80211_hw *hw = &local->hw; 5238f77f384SJohannes Berg unsigned long flags; 524a7bc376cSJohannes Berg struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 5253a25a8c8SJohannes Berg int queue = info->hw_queue; 526a7bc376cSJohannes Berg 527a7bc376cSJohannes Berg if (WARN_ON(!info->control.vif)) { 528d4fa14cdSFelix Fietkau ieee80211_free_txskb(&local->hw, skb); 529a7bc376cSJohannes Berg return; 530a7bc376cSJohannes Berg } 5318f77f384SJohannes Berg 5328f77f384SJohannes Berg spin_lock_irqsave(&local->queue_stop_reason_lock, flags); 533cca07b00SLuciano Coelho __ieee80211_stop_queue(hw, queue, IEEE80211_QUEUE_STOP_REASON_SKB_ADD, 534cca07b00SLuciano Coelho false); 5353b8d81e0SJohannes Berg __skb_queue_tail(&local->pending[queue], skb); 536cca07b00SLuciano Coelho __ieee80211_wake_queue(hw, queue, IEEE80211_QUEUE_STOP_REASON_SKB_ADD, 537f6c7f03fSEmmanuel Grumbach false, &flags); 5388f77f384SJohannes Berg spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); 5398f77f384SJohannes Berg } 5408f77f384SJohannes Berg 541e3685e03SJohannes Berg void ieee80211_add_pending_skbs(struct ieee80211_local *local, 542e3685e03SJohannes Berg struct sk_buff_head *skbs) 5438f77f384SJohannes Berg { 5448f77f384SJohannes Berg struct ieee80211_hw *hw = &local->hw; 5458f77f384SJohannes Berg struct sk_buff *skb; 5468f77f384SJohannes Berg unsigned long flags; 547b0b97a8aSJohannes Berg int queue, i; 5488f77f384SJohannes Berg 5498f77f384SJohannes Berg spin_lock_irqsave(&local->queue_stop_reason_lock, flags); 5508f77f384SJohannes Berg while ((skb = skb_dequeue(skbs))) { 551a7bc376cSJohannes Berg struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 552a7bc376cSJohannes Berg 553a7bc376cSJohannes Berg if (WARN_ON(!info->control.vif)) { 554d4fa14cdSFelix Fietkau ieee80211_free_txskb(&local->hw, skb); 555a7bc376cSJohannes Berg continue; 556a7bc376cSJohannes Berg } 557a7bc376cSJohannes Berg 5583a25a8c8SJohannes Berg queue = info->hw_queue; 5594644ae89SJohannes Berg 5604644ae89SJohannes Berg __ieee80211_stop_queue(hw, queue, 561cca07b00SLuciano Coelho IEEE80211_QUEUE_STOP_REASON_SKB_ADD, 562cca07b00SLuciano Coelho false); 5634644ae89SJohannes Berg 5643b8d81e0SJohannes Berg __skb_queue_tail(&local->pending[queue], skb); 5658f77f384SJohannes Berg } 5668f77f384SJohannes Berg 5673b8d81e0SJohannes Berg for (i = 0; i < hw->queues; i++) 5688f77f384SJohannes Berg __ieee80211_wake_queue(hw, i, 569cca07b00SLuciano Coelho IEEE80211_QUEUE_STOP_REASON_SKB_ADD, 570f6c7f03fSEmmanuel Grumbach false, &flags); 5718f77f384SJohannes Berg spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); 5728f77f384SJohannes Berg } 5738f77f384SJohannes Berg 574ce7c9111SKalle Valo void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw, 575445ea4e8SJohannes Berg unsigned long queues, 576cca07b00SLuciano Coelho enum queue_stop_reason reason, 577cca07b00SLuciano Coelho bool refcounted) 578c2d1560aSJohannes Berg { 579ce7c9111SKalle Valo struct ieee80211_local *local = hw_to_local(hw); 580ce7c9111SKalle Valo unsigned long flags; 581c2d1560aSJohannes Berg int i; 582c2d1560aSJohannes Berg 583ce7c9111SKalle Valo spin_lock_irqsave(&local->queue_stop_reason_lock, flags); 584ce7c9111SKalle Valo 585445ea4e8SJohannes Berg for_each_set_bit(i, &queues, hw->queues) 586cca07b00SLuciano Coelho __ieee80211_stop_queue(hw, i, reason, refcounted); 587ce7c9111SKalle Valo 588ce7c9111SKalle Valo spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); 589ce7c9111SKalle Valo } 590ce7c9111SKalle Valo 591ce7c9111SKalle Valo void ieee80211_stop_queues(struct ieee80211_hw *hw) 592ce7c9111SKalle Valo { 593445ea4e8SJohannes Berg ieee80211_stop_queues_by_reason(hw, IEEE80211_MAX_QUEUE_MAP, 594cca07b00SLuciano Coelho IEEE80211_QUEUE_STOP_REASON_DRIVER, 595cca07b00SLuciano Coelho false); 596c2d1560aSJohannes Berg } 597c2d1560aSJohannes Berg EXPORT_SYMBOL(ieee80211_stop_queues); 598c2d1560aSJohannes Berg 59992ab8535STomas Winkler int ieee80211_queue_stopped(struct ieee80211_hw *hw, int queue) 60092ab8535STomas Winkler { 60192ab8535STomas Winkler struct ieee80211_local *local = hw_to_local(hw); 6023b8d81e0SJohannes Berg unsigned long flags; 6033b8d81e0SJohannes Berg int ret; 60496f5e66eSJohannes Berg 605e4e72fb4SJohannes Berg if (WARN_ON(queue >= hw->queues)) 60696f5e66eSJohannes Berg return true; 60796f5e66eSJohannes Berg 6083b8d81e0SJohannes Berg spin_lock_irqsave(&local->queue_stop_reason_lock, flags); 6092419ea14SThomas Pedersen ret = test_bit(IEEE80211_QUEUE_STOP_REASON_DRIVER, 6102419ea14SThomas Pedersen &local->queue_stop_reasons[queue]); 6113b8d81e0SJohannes Berg spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); 6123b8d81e0SJohannes Berg return ret; 61392ab8535STomas Winkler } 61492ab8535STomas Winkler EXPORT_SYMBOL(ieee80211_queue_stopped); 61592ab8535STomas Winkler 616ce7c9111SKalle Valo void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw, 617445ea4e8SJohannes Berg unsigned long queues, 618cca07b00SLuciano Coelho enum queue_stop_reason reason, 619cca07b00SLuciano Coelho bool refcounted) 620c2d1560aSJohannes Berg { 621ce7c9111SKalle Valo struct ieee80211_local *local = hw_to_local(hw); 622ce7c9111SKalle Valo unsigned long flags; 623c2d1560aSJohannes Berg int i; 624c2d1560aSJohannes Berg 625ce7c9111SKalle Valo spin_lock_irqsave(&local->queue_stop_reason_lock, flags); 626ce7c9111SKalle Valo 627445ea4e8SJohannes Berg for_each_set_bit(i, &queues, hw->queues) 628f6c7f03fSEmmanuel Grumbach __ieee80211_wake_queue(hw, i, reason, refcounted, &flags); 629ce7c9111SKalle Valo 630ce7c9111SKalle Valo spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); 631ce7c9111SKalle Valo } 632ce7c9111SKalle Valo 633ce7c9111SKalle Valo void ieee80211_wake_queues(struct ieee80211_hw *hw) 634ce7c9111SKalle Valo { 635445ea4e8SJohannes Berg ieee80211_wake_queues_by_reason(hw, IEEE80211_MAX_QUEUE_MAP, 636cca07b00SLuciano Coelho IEEE80211_QUEUE_STOP_REASON_DRIVER, 637cca07b00SLuciano Coelho false); 638c2d1560aSJohannes Berg } 639c2d1560aSJohannes Berg EXPORT_SYMBOL(ieee80211_wake_queues); 640dabeb344SJohannes Berg 64126da23b6SLuciano Coelho static unsigned int 64226da23b6SLuciano Coelho ieee80211_get_vif_queues(struct ieee80211_local *local, 64339ecc01dSJohannes Berg struct ieee80211_sub_if_data *sdata) 64439ecc01dSJohannes Berg { 64526da23b6SLuciano Coelho unsigned int queues; 64639ecc01dSJohannes Berg 64730686bf7SJohannes Berg if (sdata && ieee80211_hw_check(&local->hw, QUEUE_CONTROL)) { 64839ecc01dSJohannes Berg int ac; 64939ecc01dSJohannes Berg 65039ecc01dSJohannes Berg queues = 0; 65139ecc01dSJohannes Berg 65239ecc01dSJohannes Berg for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) 65339ecc01dSJohannes Berg queues |= BIT(sdata->vif.hw_queue[ac]); 65439ecc01dSJohannes Berg if (sdata->vif.cab_queue != IEEE80211_INVAL_HW_QUEUE) 65539ecc01dSJohannes Berg queues |= BIT(sdata->vif.cab_queue); 65639ecc01dSJohannes Berg } else { 65739ecc01dSJohannes Berg /* all queues */ 65839ecc01dSJohannes Berg queues = BIT(local->hw.queues) - 1; 65939ecc01dSJohannes Berg } 66039ecc01dSJohannes Berg 66126da23b6SLuciano Coelho return queues; 66226da23b6SLuciano Coelho } 66326da23b6SLuciano Coelho 6644f9610d5SLiad Kaufman void __ieee80211_flush_queues(struct ieee80211_local *local, 6654f9610d5SLiad Kaufman struct ieee80211_sub_if_data *sdata, 6663b24f4c6SEmmanuel Grumbach unsigned int queues, bool drop) 66726da23b6SLuciano Coelho { 66826da23b6SLuciano Coelho if (!local->ops->flush) 66926da23b6SLuciano Coelho return; 67026da23b6SLuciano Coelho 6714f9610d5SLiad Kaufman /* 6724f9610d5SLiad Kaufman * If no queue was set, or if the HW doesn't support 6734f9610d5SLiad Kaufman * IEEE80211_HW_QUEUE_CONTROL - flush all queues 6744f9610d5SLiad Kaufman */ 67530686bf7SJohannes Berg if (!queues || !ieee80211_hw_check(&local->hw, QUEUE_CONTROL)) 67626da23b6SLuciano Coelho queues = ieee80211_get_vif_queues(local, sdata); 67726da23b6SLuciano Coelho 67859f48fe2SLuciano Coelho ieee80211_stop_queues_by_reason(&local->hw, queues, 679cca07b00SLuciano Coelho IEEE80211_QUEUE_STOP_REASON_FLUSH, 680cca07b00SLuciano Coelho false); 681445ea4e8SJohannes Berg 6823b24f4c6SEmmanuel Grumbach drv_flush(local, sdata, queues, drop); 683445ea4e8SJohannes Berg 68459f48fe2SLuciano Coelho ieee80211_wake_queues_by_reason(&local->hw, queues, 685cca07b00SLuciano Coelho IEEE80211_QUEUE_STOP_REASON_FLUSH, 686cca07b00SLuciano Coelho false); 68739ecc01dSJohannes Berg } 68839ecc01dSJohannes Berg 6894f9610d5SLiad Kaufman void ieee80211_flush_queues(struct ieee80211_local *local, 6903b24f4c6SEmmanuel Grumbach struct ieee80211_sub_if_data *sdata, bool drop) 6914f9610d5SLiad Kaufman { 6923b24f4c6SEmmanuel Grumbach __ieee80211_flush_queues(local, sdata, 0, drop); 6934f9610d5SLiad Kaufman } 6944f9610d5SLiad Kaufman 69526da23b6SLuciano Coelho void ieee80211_stop_vif_queues(struct ieee80211_local *local, 69626da23b6SLuciano Coelho struct ieee80211_sub_if_data *sdata, 69726da23b6SLuciano Coelho enum queue_stop_reason reason) 69826da23b6SLuciano Coelho { 69926da23b6SLuciano Coelho ieee80211_stop_queues_by_reason(&local->hw, 70026da23b6SLuciano Coelho ieee80211_get_vif_queues(local, sdata), 70126da23b6SLuciano Coelho reason, true); 70226da23b6SLuciano Coelho } 70326da23b6SLuciano Coelho 70426da23b6SLuciano Coelho void ieee80211_wake_vif_queues(struct ieee80211_local *local, 70526da23b6SLuciano Coelho struct ieee80211_sub_if_data *sdata, 70626da23b6SLuciano Coelho enum queue_stop_reason reason) 70726da23b6SLuciano Coelho { 70826da23b6SLuciano Coelho ieee80211_wake_queues_by_reason(&local->hw, 70926da23b6SLuciano Coelho ieee80211_get_vif_queues(local, sdata), 71026da23b6SLuciano Coelho reason, true); 71126da23b6SLuciano Coelho } 71226da23b6SLuciano Coelho 7133384d757SArik Nemtsov static void __iterate_interfaces(struct ieee80211_local *local, 714c7c71066SJohannes Berg u32 iter_flags, 715dabeb344SJohannes Berg void (*iterator)(void *data, u8 *mac, 71632bfd35dSJohannes Berg struct ieee80211_vif *vif), 717dabeb344SJohannes Berg void *data) 718dabeb344SJohannes Berg { 719dabeb344SJohannes Berg struct ieee80211_sub_if_data *sdata; 7203384d757SArik Nemtsov bool active_only = iter_flags & IEEE80211_IFACE_ITER_ACTIVE; 721dabeb344SJohannes Berg 722e38bad47SJohannes Berg list_for_each_entry_rcu(sdata, &local->interfaces, list) { 72351fb61e7SJohannes Berg switch (sdata->vif.type) { 72405c914feSJohannes Berg case NL80211_IFTYPE_MONITOR: 725d8212184SAviya Erenfeld if (!(sdata->u.mntr.flags & MONITOR_FLAG_ACTIVE)) 72631eba5bcSFelix Fietkau continue; 72731eba5bcSFelix Fietkau break; 72805c914feSJohannes Berg case NL80211_IFTYPE_AP_VLAN: 729dabeb344SJohannes Berg continue; 7302ca27bcfSJohannes Berg default: 731dabeb344SJohannes Berg break; 732dabeb344SJohannes Berg } 7338b2c9824SJohannes Berg if (!(iter_flags & IEEE80211_IFACE_ITER_RESUME_ALL) && 7343384d757SArik Nemtsov active_only && !(sdata->flags & IEEE80211_SDATA_IN_DRIVER)) 7358b2c9824SJohannes Berg continue; 7363384d757SArik Nemtsov if (ieee80211_sdata_running(sdata) || !active_only) 73747846c9bSJohannes Berg iterator(data, sdata->vif.addr, 73832bfd35dSJohannes Berg &sdata->vif); 739dabeb344SJohannes Berg } 740e38bad47SJohannes Berg 741c7c71066SJohannes Berg sdata = rcu_dereference_check(local->monitor_sdata, 742c7c71066SJohannes Berg lockdep_is_held(&local->iflist_mtx) || 743c7c71066SJohannes Berg lockdep_rtnl_is_held()); 7448b2c9824SJohannes Berg if (sdata && 7453384d757SArik Nemtsov (iter_flags & IEEE80211_IFACE_ITER_RESUME_ALL || !active_only || 7468b2c9824SJohannes Berg sdata->flags & IEEE80211_SDATA_IN_DRIVER)) 747685fb72bSJohannes Berg iterator(data, sdata->vif.addr, &sdata->vif); 748c7c71066SJohannes Berg } 749685fb72bSJohannes Berg 7503384d757SArik Nemtsov void ieee80211_iterate_interfaces( 751c7c71066SJohannes Berg struct ieee80211_hw *hw, u32 iter_flags, 752c7c71066SJohannes Berg void (*iterator)(void *data, u8 *mac, 753c7c71066SJohannes Berg struct ieee80211_vif *vif), 754c7c71066SJohannes Berg void *data) 755c7c71066SJohannes Berg { 756c7c71066SJohannes Berg struct ieee80211_local *local = hw_to_local(hw); 757c7c71066SJohannes Berg 758c7c71066SJohannes Berg mutex_lock(&local->iflist_mtx); 7593384d757SArik Nemtsov __iterate_interfaces(local, iter_flags, iterator, data); 760c7c71066SJohannes Berg mutex_unlock(&local->iflist_mtx); 761c7c71066SJohannes Berg } 7623384d757SArik Nemtsov EXPORT_SYMBOL_GPL(ieee80211_iterate_interfaces); 763c7c71066SJohannes Berg 764c7c71066SJohannes Berg void ieee80211_iterate_active_interfaces_atomic( 765c7c71066SJohannes Berg struct ieee80211_hw *hw, u32 iter_flags, 766c7c71066SJohannes Berg void (*iterator)(void *data, u8 *mac, 767c7c71066SJohannes Berg struct ieee80211_vif *vif), 768c7c71066SJohannes Berg void *data) 769c7c71066SJohannes Berg { 770c7c71066SJohannes Berg struct ieee80211_local *local = hw_to_local(hw); 771c7c71066SJohannes Berg 772c7c71066SJohannes Berg rcu_read_lock(); 7733384d757SArik Nemtsov __iterate_interfaces(local, iter_flags | IEEE80211_IFACE_ITER_ACTIVE, 7743384d757SArik Nemtsov iterator, data); 775e38bad47SJohannes Berg rcu_read_unlock(); 776dabeb344SJohannes Berg } 7772f561febSIvo van Doorn EXPORT_SYMBOL_GPL(ieee80211_iterate_active_interfaces_atomic); 77837ffc8daSJohannes Berg 779c7c71066SJohannes Berg void ieee80211_iterate_active_interfaces_rtnl( 780c7c71066SJohannes Berg struct ieee80211_hw *hw, u32 iter_flags, 781c7c71066SJohannes Berg void (*iterator)(void *data, u8 *mac, 782c7c71066SJohannes Berg struct ieee80211_vif *vif), 783c7c71066SJohannes Berg void *data) 784c7c71066SJohannes Berg { 785c7c71066SJohannes Berg struct ieee80211_local *local = hw_to_local(hw); 786c7c71066SJohannes Berg 787c7c71066SJohannes Berg ASSERT_RTNL(); 788c7c71066SJohannes Berg 7893384d757SArik Nemtsov __iterate_interfaces(local, iter_flags | IEEE80211_IFACE_ITER_ACTIVE, 7903384d757SArik Nemtsov iterator, data); 791c7c71066SJohannes Berg } 792c7c71066SJohannes Berg EXPORT_SYMBOL_GPL(ieee80211_iterate_active_interfaces_rtnl); 793c7c71066SJohannes Berg 7940fc1e049SArik Nemtsov static void __iterate_stations(struct ieee80211_local *local, 7950fc1e049SArik Nemtsov void (*iterator)(void *data, 7960fc1e049SArik Nemtsov struct ieee80211_sta *sta), 7970fc1e049SArik Nemtsov void *data) 7980fc1e049SArik Nemtsov { 7990fc1e049SArik Nemtsov struct sta_info *sta; 8000fc1e049SArik Nemtsov 8010fc1e049SArik Nemtsov list_for_each_entry_rcu(sta, &local->sta_list, list) { 8020fc1e049SArik Nemtsov if (!sta->uploaded) 8030fc1e049SArik Nemtsov continue; 8040fc1e049SArik Nemtsov 8050fc1e049SArik Nemtsov iterator(data, &sta->sta); 8060fc1e049SArik Nemtsov } 8070fc1e049SArik Nemtsov } 8080fc1e049SArik Nemtsov 8090fc1e049SArik Nemtsov void ieee80211_iterate_stations_atomic(struct ieee80211_hw *hw, 8100fc1e049SArik Nemtsov void (*iterator)(void *data, 8110fc1e049SArik Nemtsov struct ieee80211_sta *sta), 8120fc1e049SArik Nemtsov void *data) 8130fc1e049SArik Nemtsov { 8140fc1e049SArik Nemtsov struct ieee80211_local *local = hw_to_local(hw); 8150fc1e049SArik Nemtsov 8160fc1e049SArik Nemtsov rcu_read_lock(); 8170fc1e049SArik Nemtsov __iterate_stations(local, iterator, data); 8180fc1e049SArik Nemtsov rcu_read_unlock(); 8190fc1e049SArik Nemtsov } 8200fc1e049SArik Nemtsov EXPORT_SYMBOL_GPL(ieee80211_iterate_stations_atomic); 8210fc1e049SArik Nemtsov 822ad7e718cSJohannes Berg struct ieee80211_vif *wdev_to_ieee80211_vif(struct wireless_dev *wdev) 823ad7e718cSJohannes Berg { 824ad7e718cSJohannes Berg struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 825ad7e718cSJohannes Berg 826ad7e718cSJohannes Berg if (!ieee80211_sdata_running(sdata) || 827ad7e718cSJohannes Berg !(sdata->flags & IEEE80211_SDATA_IN_DRIVER)) 828ad7e718cSJohannes Berg return NULL; 829ad7e718cSJohannes Berg return &sdata->vif; 830ad7e718cSJohannes Berg } 831ad7e718cSJohannes Berg EXPORT_SYMBOL_GPL(wdev_to_ieee80211_vif); 832ad7e718cSJohannes Berg 833dc5a1ad7SEmmanuel Grumbach struct wireless_dev *ieee80211_vif_to_wdev(struct ieee80211_vif *vif) 834dc5a1ad7SEmmanuel Grumbach { 8356513e98eSJohannes Berg struct ieee80211_sub_if_data *sdata; 8366513e98eSJohannes Berg 8376513e98eSJohannes Berg if (!vif) 8386513e98eSJohannes Berg return NULL; 8396513e98eSJohannes Berg 8406513e98eSJohannes Berg sdata = vif_to_sdata(vif); 841dc5a1ad7SEmmanuel Grumbach 842dc5a1ad7SEmmanuel Grumbach if (!ieee80211_sdata_running(sdata) || 843dc5a1ad7SEmmanuel Grumbach !(sdata->flags & IEEE80211_SDATA_IN_DRIVER)) 844dc5a1ad7SEmmanuel Grumbach return NULL; 845dc5a1ad7SEmmanuel Grumbach 846dc5a1ad7SEmmanuel Grumbach return &sdata->wdev; 847dc5a1ad7SEmmanuel Grumbach } 848dc5a1ad7SEmmanuel Grumbach EXPORT_SYMBOL_GPL(ieee80211_vif_to_wdev); 849dc5a1ad7SEmmanuel Grumbach 85042935ecaSLuis R. Rodriguez /* 85142935ecaSLuis R. Rodriguez * Nothing should have been stuffed into the workqueue during 8524afaff17SEmmanuel Grumbach * the suspend->resume cycle. Since we can't check each caller 8534afaff17SEmmanuel Grumbach * of this function if we are already quiescing / suspended, 8544afaff17SEmmanuel Grumbach * check here and don't WARN since this can actually happen when 8554afaff17SEmmanuel Grumbach * the rx path (for example) is racing against __ieee80211_suspend 8564afaff17SEmmanuel Grumbach * and suspending / quiescing was set after the rx path checked 8574afaff17SEmmanuel Grumbach * them. 85842935ecaSLuis R. Rodriguez */ 85942935ecaSLuis R. Rodriguez static bool ieee80211_can_queue_work(struct ieee80211_local *local) 86042935ecaSLuis R. Rodriguez { 8614afaff17SEmmanuel Grumbach if (local->quiescing || (local->suspended && !local->resuming)) { 8624afaff17SEmmanuel Grumbach pr_warn("queueing ieee80211 work while going to suspend\n"); 86342935ecaSLuis R. Rodriguez return false; 8644afaff17SEmmanuel Grumbach } 86542935ecaSLuis R. Rodriguez 86642935ecaSLuis R. Rodriguez return true; 86742935ecaSLuis R. Rodriguez } 86842935ecaSLuis R. Rodriguez 86942935ecaSLuis R. Rodriguez void ieee80211_queue_work(struct ieee80211_hw *hw, struct work_struct *work) 87042935ecaSLuis R. Rodriguez { 87142935ecaSLuis R. Rodriguez struct ieee80211_local *local = hw_to_local(hw); 87242935ecaSLuis R. Rodriguez 87342935ecaSLuis R. Rodriguez if (!ieee80211_can_queue_work(local)) 87442935ecaSLuis R. Rodriguez return; 87542935ecaSLuis R. Rodriguez 87642935ecaSLuis R. Rodriguez queue_work(local->workqueue, work); 87742935ecaSLuis R. Rodriguez } 87842935ecaSLuis R. Rodriguez EXPORT_SYMBOL(ieee80211_queue_work); 87942935ecaSLuis R. Rodriguez 88042935ecaSLuis R. Rodriguez void ieee80211_queue_delayed_work(struct ieee80211_hw *hw, 88142935ecaSLuis R. Rodriguez struct delayed_work *dwork, 88242935ecaSLuis R. Rodriguez unsigned long delay) 88342935ecaSLuis R. Rodriguez { 88442935ecaSLuis R. Rodriguez struct ieee80211_local *local = hw_to_local(hw); 88542935ecaSLuis R. Rodriguez 88642935ecaSLuis R. Rodriguez if (!ieee80211_can_queue_work(local)) 88742935ecaSLuis R. Rodriguez return; 88842935ecaSLuis R. Rodriguez 88942935ecaSLuis R. Rodriguez queue_delayed_work(local->workqueue, dwork, delay); 89042935ecaSLuis R. Rodriguez } 89142935ecaSLuis R. Rodriguez EXPORT_SYMBOL(ieee80211_queue_delayed_work); 89242935ecaSLuis R. Rodriguez 893e4d005b8SJohannes Berg static void ieee80211_parse_extension_element(u32 *crc, 894e4d005b8SJohannes Berg const struct element *elem, 895e4d005b8SJohannes Berg struct ieee802_11_elems *elems) 896e4d005b8SJohannes Berg { 897e4d005b8SJohannes Berg const void *data = elem->data + 1; 898e4d005b8SJohannes Berg u8 len = elem->datalen - 1; 899e4d005b8SJohannes Berg 900e4d005b8SJohannes Berg switch (elem->data[0]) { 901e4d005b8SJohannes Berg case WLAN_EID_EXT_HE_MU_EDCA: 902e4d005b8SJohannes Berg if (len == sizeof(*elems->mu_edca_param_set)) { 903e4d005b8SJohannes Berg elems->mu_edca_param_set = data; 904e4d005b8SJohannes Berg if (crc) 905e4d005b8SJohannes Berg *crc = crc32_be(*crc, (void *)elem, 906e4d005b8SJohannes Berg elem->datalen + 2); 907e4d005b8SJohannes Berg } 908e4d005b8SJohannes Berg break; 909e4d005b8SJohannes Berg case WLAN_EID_EXT_HE_CAPABILITY: 910e4d005b8SJohannes Berg elems->he_cap = data; 911e4d005b8SJohannes Berg elems->he_cap_len = len; 912e4d005b8SJohannes Berg break; 913e4d005b8SJohannes Berg case WLAN_EID_EXT_HE_OPERATION: 914e4d005b8SJohannes Berg if (len >= sizeof(*elems->he_operation) && 915660d81daSJohannes Berg len == ieee80211_he_oper_size(data) - 1) { 916660d81daSJohannes Berg if (crc) 917660d81daSJohannes Berg *crc = crc32_be(*crc, (void *)elem, 918660d81daSJohannes Berg elem->datalen + 2); 919e4d005b8SJohannes Berg elems->he_operation = data; 920660d81daSJohannes Berg } 921e4d005b8SJohannes Berg break; 922e4d005b8SJohannes Berg case WLAN_EID_EXT_UORA: 923e4d005b8SJohannes Berg if (len == 1) 924e4d005b8SJohannes Berg elems->uora_element = data; 925e4d005b8SJohannes Berg break; 926e4d005b8SJohannes Berg case WLAN_EID_EXT_MAX_CHANNEL_SWITCH_TIME: 927e4d005b8SJohannes Berg if (len == 3) 928e4d005b8SJohannes Berg elems->max_channel_switch_time = data; 929e4d005b8SJohannes Berg break; 930e4d005b8SJohannes Berg case WLAN_EID_EXT_MULTIPLE_BSSID_CONFIGURATION: 931e4d005b8SJohannes Berg if (len == sizeof(*elems->mbssid_config_ie)) 932e4d005b8SJohannes Berg elems->mbssid_config_ie = data; 933e4d005b8SJohannes Berg break; 934e4d005b8SJohannes Berg case WLAN_EID_EXT_HE_SPR: 935e4d005b8SJohannes Berg if (len >= sizeof(*elems->he_spr) && 936e4d005b8SJohannes Berg len >= ieee80211_he_spr_size(data)) 937e4d005b8SJohannes Berg elems->he_spr = data; 938e4d005b8SJohannes Berg break; 939a6cf28e0SRajkumar Manoharan case WLAN_EID_EXT_HE_6GHZ_CAPA: 940a6cf28e0SRajkumar Manoharan if (len == sizeof(*elems->he_6ghz_capa)) 941a6cf28e0SRajkumar Manoharan elems->he_6ghz_capa = data; 942a6cf28e0SRajkumar Manoharan break; 943e4d005b8SJohannes Berg } 944e4d005b8SJohannes Berg } 945e4d005b8SJohannes Berg 94678ac51f8SSara Sharon static u32 94778ac51f8SSara Sharon _ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action, 948dd76986bSJohannes Berg struct ieee802_11_elems *elems, 949671042a4SSara Sharon u64 filter, u32 crc, 950671042a4SSara Sharon const struct element *check_inherit) 951dd76986bSJohannes Berg { 952671042a4SSara Sharon const struct element *elem; 953dd76986bSJohannes Berg bool calc_crc = filter != 0; 954fcff4f10SPaul Stewart DECLARE_BITMAP(seen_elems, 256); 955b2e506bfSJohannes Berg const u8 *ie; 956dd76986bSJohannes Berg 957fcff4f10SPaul Stewart bitmap_zero(seen_elems, 256); 958dd76986bSJohannes Berg 959c17e28d1SJohannes Berg for_each_element(elem, start, len) { 960fcff4f10SPaul Stewart bool elem_parse_failed; 961c17e28d1SJohannes Berg u8 id = elem->id; 962c17e28d1SJohannes Berg u8 elen = elem->datalen; 963c17e28d1SJohannes Berg const u8 *pos = elem->data; 964fcff4f10SPaul Stewart 965671042a4SSara Sharon if (check_inherit && 966671042a4SSara Sharon !cfg80211_is_element_inherited(elem, 967671042a4SSara Sharon check_inherit)) 968671042a4SSara Sharon continue; 969671042a4SSara Sharon 9709690fb16SJohannes Berg switch (id) { 9719690fb16SJohannes Berg case WLAN_EID_SSID: 9729690fb16SJohannes Berg case WLAN_EID_SUPP_RATES: 9739690fb16SJohannes Berg case WLAN_EID_FH_PARAMS: 9749690fb16SJohannes Berg case WLAN_EID_DS_PARAMS: 9759690fb16SJohannes Berg case WLAN_EID_CF_PARAMS: 9769690fb16SJohannes Berg case WLAN_EID_TIM: 9779690fb16SJohannes Berg case WLAN_EID_IBSS_PARAMS: 9789690fb16SJohannes Berg case WLAN_EID_CHALLENGE: 9799690fb16SJohannes Berg case WLAN_EID_RSN: 9809690fb16SJohannes Berg case WLAN_EID_ERP_INFO: 9819690fb16SJohannes Berg case WLAN_EID_EXT_SUPP_RATES: 9829690fb16SJohannes Berg case WLAN_EID_HT_CAPABILITY: 9839690fb16SJohannes Berg case WLAN_EID_HT_OPERATION: 9849690fb16SJohannes Berg case WLAN_EID_VHT_CAPABILITY: 9859690fb16SJohannes Berg case WLAN_EID_VHT_OPERATION: 9869690fb16SJohannes Berg case WLAN_EID_MESH_ID: 9879690fb16SJohannes Berg case WLAN_EID_MESH_CONFIG: 9889690fb16SJohannes Berg case WLAN_EID_PEER_MGMT: 9899690fb16SJohannes Berg case WLAN_EID_PREQ: 9909690fb16SJohannes Berg case WLAN_EID_PREP: 9919690fb16SJohannes Berg case WLAN_EID_PERR: 9929690fb16SJohannes Berg case WLAN_EID_RANN: 9939690fb16SJohannes Berg case WLAN_EID_CHANNEL_SWITCH: 9949690fb16SJohannes Berg case WLAN_EID_EXT_CHANSWITCH_ANN: 9959690fb16SJohannes Berg case WLAN_EID_COUNTRY: 9969690fb16SJohannes Berg case WLAN_EID_PWR_CONSTRAINT: 9979690fb16SJohannes Berg case WLAN_EID_TIMEOUT_INTERVAL: 99885220d71SJohannes Berg case WLAN_EID_SECONDARY_CHANNEL_OFFSET: 999b2e506bfSJohannes Berg case WLAN_EID_WIDE_BW_CHANNEL_SWITCH: 10008f2535b9SChun-Yeow Yeoh case WLAN_EID_CHAN_SWITCH_PARAM: 10019041c1faSArik Nemtsov case WLAN_EID_EXT_CAPABILITY: 100253837584SArik Nemtsov case WLAN_EID_CHAN_SWITCH_TIMING: 100353837584SArik Nemtsov case WLAN_EID_LINK_ID: 1004e38a017bSAvraham Stern case WLAN_EID_BSS_MAX_IDLE_PERIOD: 1005c0058df7SShaul Triebitz case WLAN_EID_RSNX: 1006b2e506bfSJohannes Berg /* 1007b2e506bfSJohannes Berg * not listing WLAN_EID_CHANNEL_SWITCH_WRAPPER -- it seems possible 1008b2e506bfSJohannes Berg * that if the content gets bigger it might be needed more than once 1009b2e506bfSJohannes Berg */ 10109690fb16SJohannes Berg if (test_bit(id, seen_elems)) { 1011fcff4f10SPaul Stewart elems->parse_error = true; 1012fcff4f10SPaul Stewart continue; 1013fcff4f10SPaul Stewart } 10149690fb16SJohannes Berg break; 10159690fb16SJohannes Berg } 1016dd76986bSJohannes Berg 1017dd76986bSJohannes Berg if (calc_crc && id < 64 && (filter & (1ULL << id))) 1018dd76986bSJohannes Berg crc = crc32_be(crc, pos - 2, elen + 2); 1019dd76986bSJohannes Berg 1020fcff4f10SPaul Stewart elem_parse_failed = false; 1021fcff4f10SPaul Stewart 1022dd76986bSJohannes Berg switch (id) { 102353837584SArik Nemtsov case WLAN_EID_LINK_ID: 102453837584SArik Nemtsov if (elen + 2 != sizeof(struct ieee80211_tdls_lnkie)) { 102553837584SArik Nemtsov elem_parse_failed = true; 102653837584SArik Nemtsov break; 102753837584SArik Nemtsov } 102853837584SArik Nemtsov elems->lnk_id = (void *)(pos - 2); 102953837584SArik Nemtsov break; 103053837584SArik Nemtsov case WLAN_EID_CHAN_SWITCH_TIMING: 103153837584SArik Nemtsov if (elen != sizeof(struct ieee80211_ch_switch_timing)) { 103253837584SArik Nemtsov elem_parse_failed = true; 103353837584SArik Nemtsov break; 103453837584SArik Nemtsov } 103553837584SArik Nemtsov elems->ch_sw_timing = (void *)pos; 103653837584SArik Nemtsov break; 10379041c1faSArik Nemtsov case WLAN_EID_EXT_CAPABILITY: 10389041c1faSArik Nemtsov elems->ext_capab = pos; 10399041c1faSArik Nemtsov elems->ext_capab_len = elen; 10409041c1faSArik Nemtsov break; 1041dd76986bSJohannes Berg case WLAN_EID_SSID: 1042dd76986bSJohannes Berg elems->ssid = pos; 1043dd76986bSJohannes Berg elems->ssid_len = elen; 1044dd76986bSJohannes Berg break; 1045dd76986bSJohannes Berg case WLAN_EID_SUPP_RATES: 1046dd76986bSJohannes Berg elems->supp_rates = pos; 1047dd76986bSJohannes Berg elems->supp_rates_len = elen; 1048dd76986bSJohannes Berg break; 1049dd76986bSJohannes Berg case WLAN_EID_DS_PARAMS: 10501cd8e88eSJohannes Berg if (elen >= 1) 1051dd76986bSJohannes Berg elems->ds_params = pos; 10521cd8e88eSJohannes Berg else 10531cd8e88eSJohannes Berg elem_parse_failed = true; 1054dd76986bSJohannes Berg break; 1055dd76986bSJohannes Berg case WLAN_EID_TIM: 1056dd76986bSJohannes Berg if (elen >= sizeof(struct ieee80211_tim_ie)) { 1057dd76986bSJohannes Berg elems->tim = (void *)pos; 1058dd76986bSJohannes Berg elems->tim_len = elen; 1059fcff4f10SPaul Stewart } else 1060fcff4f10SPaul Stewart elem_parse_failed = true; 1061dd76986bSJohannes Berg break; 1062dd76986bSJohannes Berg case WLAN_EID_CHALLENGE: 1063dd76986bSJohannes Berg elems->challenge = pos; 1064dd76986bSJohannes Berg elems->challenge_len = elen; 1065dd76986bSJohannes Berg break; 1066dd76986bSJohannes Berg case WLAN_EID_VENDOR_SPECIFIC: 1067dd76986bSJohannes Berg if (elen >= 4 && pos[0] == 0x00 && pos[1] == 0x50 && 1068dd76986bSJohannes Berg pos[2] == 0xf2) { 1069dd76986bSJohannes Berg /* Microsoft OUI (00:50:F2) */ 1070dd76986bSJohannes Berg 1071dd76986bSJohannes Berg if (calc_crc) 1072dd76986bSJohannes Berg crc = crc32_be(crc, pos - 2, elen + 2); 1073dd76986bSJohannes Berg 1074441a33baSJohannes Berg if (elen >= 5 && pos[3] == 2) { 1075dd76986bSJohannes Berg /* OUI Type 2 - WMM IE */ 1076dd76986bSJohannes Berg if (pos[4] == 0) { 1077dd76986bSJohannes Berg elems->wmm_info = pos; 1078dd76986bSJohannes Berg elems->wmm_info_len = elen; 1079dd76986bSJohannes Berg } else if (pos[4] == 1) { 1080dd76986bSJohannes Berg elems->wmm_param = pos; 1081dd76986bSJohannes Berg elems->wmm_param_len = elen; 1082dd76986bSJohannes Berg } 1083dd76986bSJohannes Berg } 1084dd76986bSJohannes Berg } 1085dd76986bSJohannes Berg break; 1086dd76986bSJohannes Berg case WLAN_EID_RSN: 1087dd76986bSJohannes Berg elems->rsn = pos; 1088dd76986bSJohannes Berg elems->rsn_len = elen; 1089dd76986bSJohannes Berg break; 1090dd76986bSJohannes Berg case WLAN_EID_ERP_INFO: 10911946bed9SJohannes Berg if (elen >= 1) 1092dd76986bSJohannes Berg elems->erp_info = pos; 10931946bed9SJohannes Berg else 10941946bed9SJohannes Berg elem_parse_failed = true; 1095dd76986bSJohannes Berg break; 1096dd76986bSJohannes Berg case WLAN_EID_EXT_SUPP_RATES: 1097dd76986bSJohannes Berg elems->ext_supp_rates = pos; 1098dd76986bSJohannes Berg elems->ext_supp_rates_len = elen; 1099dd76986bSJohannes Berg break; 1100dd76986bSJohannes Berg case WLAN_EID_HT_CAPABILITY: 1101dd76986bSJohannes Berg if (elen >= sizeof(struct ieee80211_ht_cap)) 1102dd76986bSJohannes Berg elems->ht_cap_elem = (void *)pos; 1103fcff4f10SPaul Stewart else 1104fcff4f10SPaul Stewart elem_parse_failed = true; 1105dd76986bSJohannes Berg break; 1106074d46d1SJohannes Berg case WLAN_EID_HT_OPERATION: 1107074d46d1SJohannes Berg if (elen >= sizeof(struct ieee80211_ht_operation)) 1108074d46d1SJohannes Berg elems->ht_operation = (void *)pos; 1109fcff4f10SPaul Stewart else 1110fcff4f10SPaul Stewart elem_parse_failed = true; 1111dd76986bSJohannes Berg break; 1112818255eaSMahesh Palivela case WLAN_EID_VHT_CAPABILITY: 1113818255eaSMahesh Palivela if (elen >= sizeof(struct ieee80211_vht_cap)) 1114818255eaSMahesh Palivela elems->vht_cap_elem = (void *)pos; 1115818255eaSMahesh Palivela else 1116818255eaSMahesh Palivela elem_parse_failed = true; 1117818255eaSMahesh Palivela break; 1118818255eaSMahesh Palivela case WLAN_EID_VHT_OPERATION: 1119a04564c9SJohannes Berg if (elen >= sizeof(struct ieee80211_vht_operation)) { 1120818255eaSMahesh Palivela elems->vht_operation = (void *)pos; 1121a04564c9SJohannes Berg if (calc_crc) 1122a04564c9SJohannes Berg crc = crc32_be(crc, pos - 2, elen + 2); 1123a04564c9SJohannes Berg break; 1124a04564c9SJohannes Berg } 1125818255eaSMahesh Palivela elem_parse_failed = true; 1126818255eaSMahesh Palivela break; 1127bee7f586SJohannes Berg case WLAN_EID_OPMODE_NOTIF: 1128a04564c9SJohannes Berg if (elen > 0) { 1129bee7f586SJohannes Berg elems->opmode_notif = pos; 1130a04564c9SJohannes Berg if (calc_crc) 1131a04564c9SJohannes Berg crc = crc32_be(crc, pos - 2, elen + 2); 1132a04564c9SJohannes Berg break; 1133a04564c9SJohannes Berg } 1134bee7f586SJohannes Berg elem_parse_failed = true; 1135bee7f586SJohannes Berg break; 1136dd76986bSJohannes Berg case WLAN_EID_MESH_ID: 1137dd76986bSJohannes Berg elems->mesh_id = pos; 1138dd76986bSJohannes Berg elems->mesh_id_len = elen; 1139dd76986bSJohannes Berg break; 1140dd76986bSJohannes Berg case WLAN_EID_MESH_CONFIG: 1141dd76986bSJohannes Berg if (elen >= sizeof(struct ieee80211_meshconf_ie)) 1142dd76986bSJohannes Berg elems->mesh_config = (void *)pos; 1143fcff4f10SPaul Stewart else 1144fcff4f10SPaul Stewart elem_parse_failed = true; 1145dd76986bSJohannes Berg break; 1146dd76986bSJohannes Berg case WLAN_EID_PEER_MGMT: 1147dd76986bSJohannes Berg elems->peering = pos; 1148dd76986bSJohannes Berg elems->peering_len = elen; 1149dd76986bSJohannes Berg break; 11503f52b7e3SMarco Porsch case WLAN_EID_MESH_AWAKE_WINDOW: 11513f52b7e3SMarco Porsch if (elen >= 2) 11523f52b7e3SMarco Porsch elems->awake_window = (void *)pos; 11533f52b7e3SMarco Porsch break; 1154dd76986bSJohannes Berg case WLAN_EID_PREQ: 1155dd76986bSJohannes Berg elems->preq = pos; 1156dd76986bSJohannes Berg elems->preq_len = elen; 1157dd76986bSJohannes Berg break; 1158dd76986bSJohannes Berg case WLAN_EID_PREP: 1159dd76986bSJohannes Berg elems->prep = pos; 1160dd76986bSJohannes Berg elems->prep_len = elen; 1161dd76986bSJohannes Berg break; 1162dd76986bSJohannes Berg case WLAN_EID_PERR: 1163dd76986bSJohannes Berg elems->perr = pos; 1164dd76986bSJohannes Berg elems->perr_len = elen; 1165dd76986bSJohannes Berg break; 1166dd76986bSJohannes Berg case WLAN_EID_RANN: 1167dd76986bSJohannes Berg if (elen >= sizeof(struct ieee80211_rann_ie)) 1168dd76986bSJohannes Berg elems->rann = (void *)pos; 1169fcff4f10SPaul Stewart else 1170fcff4f10SPaul Stewart elem_parse_failed = true; 1171dd76986bSJohannes Berg break; 1172dd76986bSJohannes Berg case WLAN_EID_CHANNEL_SWITCH: 11735bc1420bSJohannes Berg if (elen != sizeof(struct ieee80211_channel_sw_ie)) { 11745bc1420bSJohannes Berg elem_parse_failed = true; 11755bc1420bSJohannes Berg break; 11765bc1420bSJohannes Berg } 11775bc1420bSJohannes Berg elems->ch_switch_ie = (void *)pos; 1178dd76986bSJohannes Berg break; 1179b4f286a1SJohannes Berg case WLAN_EID_EXT_CHANSWITCH_ANN: 1180b4f286a1SJohannes Berg if (elen != sizeof(struct ieee80211_ext_chansw_ie)) { 1181b4f286a1SJohannes Berg elem_parse_failed = true; 1182b4f286a1SJohannes Berg break; 1183b4f286a1SJohannes Berg } 1184b4f286a1SJohannes Berg elems->ext_chansw_ie = (void *)pos; 1185b4f286a1SJohannes Berg break; 118685220d71SJohannes Berg case WLAN_EID_SECONDARY_CHANNEL_OFFSET: 118785220d71SJohannes Berg if (elen != sizeof(struct ieee80211_sec_chan_offs_ie)) { 118885220d71SJohannes Berg elem_parse_failed = true; 118985220d71SJohannes Berg break; 119085220d71SJohannes Berg } 119185220d71SJohannes Berg elems->sec_chan_offs = (void *)pos; 119285220d71SJohannes Berg break; 11938f2535b9SChun-Yeow Yeoh case WLAN_EID_CHAN_SWITCH_PARAM: 11948f2535b9SChun-Yeow Yeoh if (elen != 11958f2535b9SChun-Yeow Yeoh sizeof(*elems->mesh_chansw_params_ie)) { 11968f2535b9SChun-Yeow Yeoh elem_parse_failed = true; 11978f2535b9SChun-Yeow Yeoh break; 11988f2535b9SChun-Yeow Yeoh } 11998f2535b9SChun-Yeow Yeoh elems->mesh_chansw_params_ie = (void *)pos; 12008f2535b9SChun-Yeow Yeoh break; 1201b2e506bfSJohannes Berg case WLAN_EID_WIDE_BW_CHANNEL_SWITCH: 1202b2e506bfSJohannes Berg if (!action || 1203b2e506bfSJohannes Berg elen != sizeof(*elems->wide_bw_chansw_ie)) { 1204b2e506bfSJohannes Berg elem_parse_failed = true; 1205b2e506bfSJohannes Berg break; 1206b2e506bfSJohannes Berg } 1207b2e506bfSJohannes Berg elems->wide_bw_chansw_ie = (void *)pos; 1208b2e506bfSJohannes Berg break; 1209b2e506bfSJohannes Berg case WLAN_EID_CHANNEL_SWITCH_WRAPPER: 1210b2e506bfSJohannes Berg if (action) { 1211b2e506bfSJohannes Berg elem_parse_failed = true; 1212b2e506bfSJohannes Berg break; 1213b2e506bfSJohannes Berg } 1214b2e506bfSJohannes Berg /* 1215b2e506bfSJohannes Berg * This is a bit tricky, but as we only care about 1216b2e506bfSJohannes Berg * the wide bandwidth channel switch element, so 1217b2e506bfSJohannes Berg * just parse it out manually. 1218b2e506bfSJohannes Berg */ 1219b2e506bfSJohannes Berg ie = cfg80211_find_ie(WLAN_EID_WIDE_BW_CHANNEL_SWITCH, 1220b2e506bfSJohannes Berg pos, elen); 1221b2e506bfSJohannes Berg if (ie) { 1222b2e506bfSJohannes Berg if (ie[1] == sizeof(*elems->wide_bw_chansw_ie)) 1223b2e506bfSJohannes Berg elems->wide_bw_chansw_ie = 1224b2e506bfSJohannes Berg (void *)(ie + 2); 1225b2e506bfSJohannes Berg else 1226b2e506bfSJohannes Berg elem_parse_failed = true; 1227b2e506bfSJohannes Berg } 1228b2e506bfSJohannes Berg break; 1229dd76986bSJohannes Berg case WLAN_EID_COUNTRY: 1230dd76986bSJohannes Berg elems->country_elem = pos; 1231dd76986bSJohannes Berg elems->country_elem_len = elen; 1232dd76986bSJohannes Berg break; 1233dd76986bSJohannes Berg case WLAN_EID_PWR_CONSTRAINT: 1234761a48d2SJohannes Berg if (elen != 1) { 1235761a48d2SJohannes Berg elem_parse_failed = true; 1236761a48d2SJohannes Berg break; 1237761a48d2SJohannes Berg } 1238dd76986bSJohannes Berg elems->pwr_constr_elem = pos; 1239dd76986bSJohannes Berg break; 1240c8d65917SSteinar H. Gunderson case WLAN_EID_CISCO_VENDOR_SPECIFIC: 1241c8d65917SSteinar H. Gunderson /* Lots of different options exist, but we only care 1242c8d65917SSteinar H. Gunderson * about the Dynamic Transmit Power Control element. 1243c8d65917SSteinar H. Gunderson * First check for the Cisco OUI, then for the DTPC 1244c8d65917SSteinar H. Gunderson * tag (0x00). 1245c8d65917SSteinar H. Gunderson */ 1246c8d65917SSteinar H. Gunderson if (elen < 4) { 1247c8d65917SSteinar H. Gunderson elem_parse_failed = true; 1248c8d65917SSteinar H. Gunderson break; 1249c8d65917SSteinar H. Gunderson } 1250c8d65917SSteinar H. Gunderson 1251c8d65917SSteinar H. Gunderson if (pos[0] != 0x00 || pos[1] != 0x40 || 1252c8d65917SSteinar H. Gunderson pos[2] != 0x96 || pos[3] != 0x00) 1253c8d65917SSteinar H. Gunderson break; 1254c8d65917SSteinar H. Gunderson 1255c8d65917SSteinar H. Gunderson if (elen != 6) { 1256c8d65917SSteinar H. Gunderson elem_parse_failed = true; 1257c8d65917SSteinar H. Gunderson break; 1258c8d65917SSteinar H. Gunderson } 1259c8d65917SSteinar H. Gunderson 1260c8d65917SSteinar H. Gunderson if (calc_crc) 1261c8d65917SSteinar H. Gunderson crc = crc32_be(crc, pos - 2, elen + 2); 1262c8d65917SSteinar H. Gunderson 1263c8d65917SSteinar H. Gunderson elems->cisco_dtpc_elem = pos; 1264c8d65917SSteinar H. Gunderson break; 12652aa485e1SJohn Crispin case WLAN_EID_ADDBA_EXT: 12662aa485e1SJohn Crispin if (elen != sizeof(struct ieee80211_addba_ext_ie)) { 12672aa485e1SJohn Crispin elem_parse_failed = true; 12682aa485e1SJohn Crispin break; 12692aa485e1SJohn Crispin } 12702aa485e1SJohn Crispin elems->addba_ext_ie = (void *)pos; 12712aa485e1SJohn Crispin break; 1272dd76986bSJohannes Berg case WLAN_EID_TIMEOUT_INTERVAL: 127379ba1d89SJohannes Berg if (elen >= sizeof(struct ieee80211_timeout_interval_ie)) 127479ba1d89SJohannes Berg elems->timeout_int = (void *)pos; 127579ba1d89SJohannes Berg else 127679ba1d89SJohannes Berg elem_parse_failed = true; 1277dd76986bSJohannes Berg break; 1278e38a017bSAvraham Stern case WLAN_EID_BSS_MAX_IDLE_PERIOD: 1279e38a017bSAvraham Stern if (elen >= sizeof(*elems->max_idle_period_ie)) 1280e38a017bSAvraham Stern elems->max_idle_period_ie = (void *)pos; 1281e38a017bSAvraham Stern break; 1282c0058df7SShaul Triebitz case WLAN_EID_RSNX: 1283c0058df7SShaul Triebitz elems->rsnx = pos; 1284c0058df7SShaul Triebitz elems->rsnx_len = elen; 1285c0058df7SShaul Triebitz break; 128641cbb0f5SLuca Coelho case WLAN_EID_EXTENSION: 1287e4d005b8SJohannes Berg ieee80211_parse_extension_element(calc_crc ? 1288e4d005b8SJohannes Berg &crc : NULL, 1289e4d005b8SJohannes Berg elem, elems); 129041cbb0f5SLuca Coelho break; 1291dd76986bSJohannes Berg default: 1292dd76986bSJohannes Berg break; 1293dd76986bSJohannes Berg } 1294dd76986bSJohannes Berg 1295fcff4f10SPaul Stewart if (elem_parse_failed) 1296fcff4f10SPaul Stewart elems->parse_error = true; 1297fcff4f10SPaul Stewart else 12985df45690SJohannes Berg __set_bit(id, seen_elems); 1299dd76986bSJohannes Berg } 1300dd76986bSJohannes Berg 1301c17e28d1SJohannes Berg if (!for_each_element_completed(elem, start, len)) 1302fcff4f10SPaul Stewart elems->parse_error = true; 1303fcff4f10SPaul Stewart 1304dd76986bSJohannes Berg return crc; 1305dd76986bSJohannes Berg } 1306dd76986bSJohannes Berg 13075023b14cSSara Sharon static size_t ieee802_11_find_bssid_profile(const u8 *start, size_t len, 1308671042a4SSara Sharon struct ieee802_11_elems *elems, 1309671042a4SSara Sharon u8 *transmitter_bssid, 13105023b14cSSara Sharon u8 *bss_bssid, 13115809a5d5SDan Carpenter u8 *nontransmitted_profile) 1312671042a4SSara Sharon { 1313671042a4SSara Sharon const struct element *elem, *sub; 13145023b14cSSara Sharon size_t profile_len = 0; 13155023b14cSSara Sharon bool found = false; 1316671042a4SSara Sharon 1317671042a4SSara Sharon if (!bss_bssid || !transmitter_bssid) 13185023b14cSSara Sharon return profile_len; 1319671042a4SSara Sharon 1320671042a4SSara Sharon for_each_element_id(elem, WLAN_EID_MULTIPLE_BSSID, start, len) { 1321671042a4SSara Sharon if (elem->datalen < 2) 1322671042a4SSara Sharon continue; 1323671042a4SSara Sharon 1324671042a4SSara Sharon for_each_element(sub, elem->data + 1, elem->datalen - 1) { 1325671042a4SSara Sharon u8 new_bssid[ETH_ALEN]; 1326671042a4SSara Sharon const u8 *index; 1327671042a4SSara Sharon 1328671042a4SSara Sharon if (sub->id != 0 || sub->datalen < 4) { 1329671042a4SSara Sharon /* not a valid BSS profile */ 1330671042a4SSara Sharon continue; 1331671042a4SSara Sharon } 1332671042a4SSara Sharon 1333671042a4SSara Sharon if (sub->data[0] != WLAN_EID_NON_TX_BSSID_CAP || 1334671042a4SSara Sharon sub->data[1] != 2) { 1335671042a4SSara Sharon /* The first element of the 1336671042a4SSara Sharon * Nontransmitted BSSID Profile is not 1337671042a4SSara Sharon * the Nontransmitted BSSID Capability 1338671042a4SSara Sharon * element. 1339671042a4SSara Sharon */ 1340671042a4SSara Sharon continue; 1341671042a4SSara Sharon } 1342671042a4SSara Sharon 13435809a5d5SDan Carpenter memset(nontransmitted_profile, 0, len); 13445023b14cSSara Sharon profile_len = cfg80211_merge_profile(start, len, 13455023b14cSSara Sharon elem, 13465023b14cSSara Sharon sub, 13475023b14cSSara Sharon nontransmitted_profile, 13485023b14cSSara Sharon len); 13495023b14cSSara Sharon 1350671042a4SSara Sharon /* found a Nontransmitted BSSID Profile */ 1351671042a4SSara Sharon index = cfg80211_find_ie(WLAN_EID_MULTI_BSSID_IDX, 13525809a5d5SDan Carpenter nontransmitted_profile, 13535023b14cSSara Sharon profile_len); 1354671042a4SSara Sharon if (!index || index[1] < 1 || index[2] == 0) { 1355671042a4SSara Sharon /* Invalid MBSSID Index element */ 1356671042a4SSara Sharon continue; 1357671042a4SSara Sharon } 1358671042a4SSara Sharon 1359671042a4SSara Sharon cfg80211_gen_new_bssid(transmitter_bssid, 1360671042a4SSara Sharon elem->data[0], 1361671042a4SSara Sharon index[2], 1362671042a4SSara Sharon new_bssid); 1363671042a4SSara Sharon if (ether_addr_equal(new_bssid, bss_bssid)) { 13645023b14cSSara Sharon found = true; 1365671042a4SSara Sharon elems->bssid_index_len = index[1]; 1366671042a4SSara Sharon elems->bssid_index = (void *)&index[2]; 1367671042a4SSara Sharon break; 1368671042a4SSara Sharon } 1369671042a4SSara Sharon } 1370671042a4SSara Sharon } 13715023b14cSSara Sharon 13725023b14cSSara Sharon return found ? profile_len : 0; 1373671042a4SSara Sharon } 1374671042a4SSara Sharon 137578ac51f8SSara Sharon u32 ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action, 137678ac51f8SSara Sharon struct ieee802_11_elems *elems, 137778ac51f8SSara Sharon u64 filter, u32 crc, u8 *transmitter_bssid, 137878ac51f8SSara Sharon u8 *bss_bssid) 137978ac51f8SSara Sharon { 1380671042a4SSara Sharon const struct element *non_inherit = NULL; 13815023b14cSSara Sharon u8 *nontransmitted_profile; 13825023b14cSSara Sharon int nontransmitted_profile_len = 0; 1383671042a4SSara Sharon 138478ac51f8SSara Sharon memset(elems, 0, sizeof(*elems)); 138578ac51f8SSara Sharon elems->ie_start = start; 138678ac51f8SSara Sharon elems->total_len = len; 138778ac51f8SSara Sharon 13885023b14cSSara Sharon nontransmitted_profile = kmalloc(len, GFP_ATOMIC); 13895023b14cSSara Sharon if (nontransmitted_profile) { 13905023b14cSSara Sharon nontransmitted_profile_len = 13915023b14cSSara Sharon ieee802_11_find_bssid_profile(start, len, elems, 13925023b14cSSara Sharon transmitter_bssid, 13935023b14cSSara Sharon bss_bssid, 13945809a5d5SDan Carpenter nontransmitted_profile); 1395671042a4SSara Sharon non_inherit = 1396671042a4SSara Sharon cfg80211_find_ext_elem(WLAN_EID_EXT_NON_INHERITANCE, 13975023b14cSSara Sharon nontransmitted_profile, 13985023b14cSSara Sharon nontransmitted_profile_len); 13995023b14cSSara Sharon } 1400671042a4SSara Sharon 140178ac51f8SSara Sharon crc = _ieee802_11_parse_elems_crc(start, len, action, elems, filter, 1402671042a4SSara Sharon crc, non_inherit); 140378ac51f8SSara Sharon 140478ac51f8SSara Sharon /* Override with nontransmitted profile, if found */ 14055023b14cSSara Sharon if (nontransmitted_profile_len) 14065023b14cSSara Sharon _ieee802_11_parse_elems_crc(nontransmitted_profile, 14075023b14cSSara Sharon nontransmitted_profile_len, 1408671042a4SSara Sharon action, elems, 0, 0, NULL); 140978ac51f8SSara Sharon 141078ac51f8SSara Sharon if (elems->tim && !elems->parse_error) { 141178ac51f8SSara Sharon const struct ieee80211_tim_ie *tim_ie = elems->tim; 141278ac51f8SSara Sharon 141378ac51f8SSara Sharon elems->dtim_period = tim_ie->dtim_period; 141478ac51f8SSara Sharon elems->dtim_count = tim_ie->dtim_count; 141578ac51f8SSara Sharon } 141678ac51f8SSara Sharon 141778ac51f8SSara Sharon /* Override DTIM period and count if needed */ 141878ac51f8SSara Sharon if (elems->bssid_index && 141978ac51f8SSara Sharon elems->bssid_index_len >= 142078ac51f8SSara Sharon offsetofend(struct ieee80211_bssid_index, dtim_period)) 142178ac51f8SSara Sharon elems->dtim_period = elems->bssid_index->dtim_period; 142278ac51f8SSara Sharon 142378ac51f8SSara Sharon if (elems->bssid_index && 142478ac51f8SSara Sharon elems->bssid_index_len >= 142578ac51f8SSara Sharon offsetofend(struct ieee80211_bssid_index, dtim_count)) 142678ac51f8SSara Sharon elems->dtim_count = elems->bssid_index->dtim_count; 142778ac51f8SSara Sharon 14285023b14cSSara Sharon kfree(nontransmitted_profile); 14295023b14cSSara Sharon 143078ac51f8SSara Sharon return crc; 143178ac51f8SSara Sharon } 143278ac51f8SSara Sharon 1433e552af05SHaim Dreyfuss void ieee80211_regulatory_limit_wmm_params(struct ieee80211_sub_if_data *sdata, 1434e552af05SHaim Dreyfuss struct ieee80211_tx_queue_params 1435e552af05SHaim Dreyfuss *qparam, int ac) 1436e552af05SHaim Dreyfuss { 1437e552af05SHaim Dreyfuss struct ieee80211_chanctx_conf *chanctx_conf; 1438e552af05SHaim Dreyfuss const struct ieee80211_reg_rule *rrule; 143938cb87eeSStanislaw Gruszka const struct ieee80211_wmm_ac *wmm_ac; 1440e552af05SHaim Dreyfuss u16 center_freq = 0; 1441e552af05SHaim Dreyfuss 1442e552af05SHaim Dreyfuss if (sdata->vif.type != NL80211_IFTYPE_AP && 1443e552af05SHaim Dreyfuss sdata->vif.type != NL80211_IFTYPE_STATION) 1444e552af05SHaim Dreyfuss return; 1445e552af05SHaim Dreyfuss 1446e552af05SHaim Dreyfuss rcu_read_lock(); 1447e552af05SHaim Dreyfuss chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 1448e552af05SHaim Dreyfuss if (chanctx_conf) 1449e552af05SHaim Dreyfuss center_freq = chanctx_conf->def.chan->center_freq; 1450e552af05SHaim Dreyfuss 1451e552af05SHaim Dreyfuss if (!center_freq) { 1452e552af05SHaim Dreyfuss rcu_read_unlock(); 1453e552af05SHaim Dreyfuss return; 1454e552af05SHaim Dreyfuss } 1455e552af05SHaim Dreyfuss 1456e552af05SHaim Dreyfuss rrule = freq_reg_info(sdata->wdev.wiphy, MHZ_TO_KHZ(center_freq)); 1457e552af05SHaim Dreyfuss 145838cb87eeSStanislaw Gruszka if (IS_ERR_OR_NULL(rrule) || !rrule->has_wmm) { 1459e552af05SHaim Dreyfuss rcu_read_unlock(); 1460e552af05SHaim Dreyfuss return; 1461e552af05SHaim Dreyfuss } 1462e552af05SHaim Dreyfuss 1463e552af05SHaim Dreyfuss if (sdata->vif.type == NL80211_IFTYPE_AP) 146438cb87eeSStanislaw Gruszka wmm_ac = &rrule->wmm_rule.ap[ac]; 1465e552af05SHaim Dreyfuss else 146638cb87eeSStanislaw Gruszka wmm_ac = &rrule->wmm_rule.client[ac]; 1467e552af05SHaim Dreyfuss qparam->cw_min = max_t(u16, qparam->cw_min, wmm_ac->cw_min); 1468e552af05SHaim Dreyfuss qparam->cw_max = max_t(u16, qparam->cw_max, wmm_ac->cw_max); 1469e552af05SHaim Dreyfuss qparam->aifs = max_t(u8, qparam->aifs, wmm_ac->aifsn); 1470abd76d25SDreyfuss, Haim qparam->txop = min_t(u16, qparam->txop, wmm_ac->cot / 32); 1471e552af05SHaim Dreyfuss rcu_read_unlock(); 1472e552af05SHaim Dreyfuss } 1473e552af05SHaim Dreyfuss 14743abead59SJohannes Berg void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata, 1475cec66283SJohannes Berg bool bss_notify, bool enable_qos) 14765825fe10SJohannes Berg { 14775825fe10SJohannes Berg struct ieee80211_local *local = sdata->local; 14785825fe10SJohannes Berg struct ieee80211_tx_queue_params qparam; 147955de908aSJohannes Berg struct ieee80211_chanctx_conf *chanctx_conf; 148054bcbc69SJohannes Berg int ac; 1481cec66283SJohannes Berg bool use_11b; 1482239281f8SRostislav Lisovy bool is_ocb; /* Use another EDCA parameters if dot11OCBActivated=true */ 1483aa837e1dSJohannes Berg int aCWmin, aCWmax; 14845825fe10SJohannes Berg 14855825fe10SJohannes Berg if (!local->ops->conf_tx) 14865825fe10SJohannes Berg return; 14875825fe10SJohannes Berg 148854bcbc69SJohannes Berg if (local->hw.queues < IEEE80211_NUM_ACS) 148954bcbc69SJohannes Berg return; 149054bcbc69SJohannes Berg 14915825fe10SJohannes Berg memset(&qparam, 0, sizeof(qparam)); 14925825fe10SJohannes Berg 149355de908aSJohannes Berg rcu_read_lock(); 149455de908aSJohannes Berg chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 149555de908aSJohannes Berg use_11b = (chanctx_conf && 149657fbcce3SJohannes Berg chanctx_conf->def.chan->band == NL80211_BAND_2GHZ) && 1497aa837e1dSJohannes Berg !(sdata->flags & IEEE80211_SDATA_OPERATING_GMODE); 149855de908aSJohannes Berg rcu_read_unlock(); 14995825fe10SJohannes Berg 1500239281f8SRostislav Lisovy is_ocb = (sdata->vif.type == NL80211_IFTYPE_OCB); 1501239281f8SRostislav Lisovy 1502aa837e1dSJohannes Berg /* Set defaults according to 802.11-2007 Table 7-37 */ 1503aa837e1dSJohannes Berg aCWmax = 1023; 1504aa837e1dSJohannes Berg if (use_11b) 1505aa837e1dSJohannes Berg aCWmin = 31; 15065825fe10SJohannes Berg else 1507aa837e1dSJohannes Berg aCWmin = 15; 15085825fe10SJohannes Berg 15091f4ffde8SFred Zhou /* Confiure old 802.11b/g medium access rules. */ 15101f4ffde8SFred Zhou qparam.cw_max = aCWmax; 15111f4ffde8SFred Zhou qparam.cw_min = aCWmin; 15121f4ffde8SFred Zhou qparam.txop = 0; 15131f4ffde8SFred Zhou qparam.aifs = 2; 15141f4ffde8SFred Zhou 15151f4ffde8SFred Zhou for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 15161f4ffde8SFred Zhou /* Update if QoS is enabled. */ 1517a8ce8544SStanislaw Gruszka if (enable_qos) { 151854bcbc69SJohannes Berg switch (ac) { 15191d98fb12SJohannes Berg case IEEE80211_AC_BK: 15207ba10a8eSJohannes Berg qparam.cw_max = aCWmax; 15217ba10a8eSJohannes Berg qparam.cw_min = aCWmin; 15225825fe10SJohannes Berg qparam.txop = 0; 1523239281f8SRostislav Lisovy if (is_ocb) 1524239281f8SRostislav Lisovy qparam.aifs = 9; 1525239281f8SRostislav Lisovy else 1526aa837e1dSJohannes Berg qparam.aifs = 7; 1527aa837e1dSJohannes Berg break; 1528a8ce8544SStanislaw Gruszka /* never happens but let's not leave undefined */ 1529a8ce8544SStanislaw Gruszka default: 15301d98fb12SJohannes Berg case IEEE80211_AC_BE: 15317ba10a8eSJohannes Berg qparam.cw_max = aCWmax; 15327ba10a8eSJohannes Berg qparam.cw_min = aCWmin; 1533aa837e1dSJohannes Berg qparam.txop = 0; 1534239281f8SRostislav Lisovy if (is_ocb) 1535239281f8SRostislav Lisovy qparam.aifs = 6; 1536239281f8SRostislav Lisovy else 1537aa837e1dSJohannes Berg qparam.aifs = 3; 1538aa837e1dSJohannes Berg break; 15391d98fb12SJohannes Berg case IEEE80211_AC_VI: 1540aa837e1dSJohannes Berg qparam.cw_max = aCWmin; 1541aa837e1dSJohannes Berg qparam.cw_min = (aCWmin + 1) / 2 - 1; 1542239281f8SRostislav Lisovy if (is_ocb) 1543239281f8SRostislav Lisovy qparam.txop = 0; 1544239281f8SRostislav Lisovy else if (use_11b) 1545aa837e1dSJohannes Berg qparam.txop = 6016/32; 1546aa837e1dSJohannes Berg else 1547aa837e1dSJohannes Berg qparam.txop = 3008/32; 1548239281f8SRostislav Lisovy 1549239281f8SRostislav Lisovy if (is_ocb) 1550239281f8SRostislav Lisovy qparam.aifs = 3; 1551239281f8SRostislav Lisovy else 1552aa837e1dSJohannes Berg qparam.aifs = 2; 1553aa837e1dSJohannes Berg break; 15541d98fb12SJohannes Berg case IEEE80211_AC_VO: 1555aa837e1dSJohannes Berg qparam.cw_max = (aCWmin + 1) / 2 - 1; 1556aa837e1dSJohannes Berg qparam.cw_min = (aCWmin + 1) / 4 - 1; 1557239281f8SRostislav Lisovy if (is_ocb) 1558239281f8SRostislav Lisovy qparam.txop = 0; 1559239281f8SRostislav Lisovy else if (use_11b) 1560aa837e1dSJohannes Berg qparam.txop = 3264/32; 1561aa837e1dSJohannes Berg else 1562aa837e1dSJohannes Berg qparam.txop = 1504/32; 1563aa837e1dSJohannes Berg qparam.aifs = 2; 1564aa837e1dSJohannes Berg break; 1565aa837e1dSJohannes Berg } 1566a8ce8544SStanislaw Gruszka } 1567e552af05SHaim Dreyfuss ieee80211_regulatory_limit_wmm_params(sdata, &qparam, ac); 15685825fe10SJohannes Berg 1569ab13315aSKalle Valo qparam.uapsd = false; 1570ab13315aSKalle Valo 157154bcbc69SJohannes Berg sdata->tx_conf[ac] = qparam; 157254bcbc69SJohannes Berg drv_conf_tx(local, sdata, ac, &qparam); 1573aa837e1dSJohannes Berg } 1574e1b3ec1aSStanislaw Gruszka 1575f142c6b9SJohannes Berg if (sdata->vif.type != NL80211_IFTYPE_MONITOR && 1576708d50edSAyala Beker sdata->vif.type != NL80211_IFTYPE_P2P_DEVICE && 1577708d50edSAyala Beker sdata->vif.type != NL80211_IFTYPE_NAN) { 1578a8ce8544SStanislaw Gruszka sdata->vif.bss_conf.qos = enable_qos; 15793abead59SJohannes Berg if (bss_notify) 15803abead59SJohannes Berg ieee80211_bss_info_change_notify(sdata, 15813abead59SJohannes Berg BSS_CHANGED_QOS); 15825825fe10SJohannes Berg } 1583d9734979SSujith } 1584e50db65cSJohannes Berg 158546900298SJohannes Berg void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata, 1586700e8ea6SJouni Malinen u16 transaction, u16 auth_alg, u16 status, 15874a3cb702SJohannes Berg const u8 *extra, size_t extra_len, const u8 *da, 15881672c0e3SJohannes Berg const u8 *bssid, const u8 *key, u8 key_len, u8 key_idx, 15891672c0e3SJohannes Berg u32 tx_flags) 159046900298SJohannes Berg { 159146900298SJohannes Berg struct ieee80211_local *local = sdata->local; 159246900298SJohannes Berg struct sk_buff *skb; 159346900298SJohannes Berg struct ieee80211_mgmt *mgmt; 1594fffd0934SJohannes Berg int err; 159546900298SJohannes Berg 159615e230abSFred Zhou /* 24 + 6 = header + auth_algo + auth_transaction + status_code */ 1597744462a9SMax Stepanov skb = dev_alloc_skb(local->hw.extra_tx_headroom + IEEE80211_WEP_IV_LEN + 1598744462a9SMax Stepanov 24 + 6 + extra_len + IEEE80211_WEP_ICV_LEN); 1599d15b8459SJoe Perches if (!skb) 160046900298SJohannes Berg return; 1601d15b8459SJoe Perches 1602744462a9SMax Stepanov skb_reserve(skb, local->hw.extra_tx_headroom + IEEE80211_WEP_IV_LEN); 160346900298SJohannes Berg 1604b080db58SJohannes Berg mgmt = skb_put_zero(skb, 24 + 6); 160546900298SJohannes Berg mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | 160646900298SJohannes Berg IEEE80211_STYPE_AUTH); 1607efa6a09dSAntonio Quartulli memcpy(mgmt->da, da, ETH_ALEN); 160847846c9bSJohannes Berg memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN); 160946900298SJohannes Berg memcpy(mgmt->bssid, bssid, ETH_ALEN); 161046900298SJohannes Berg mgmt->u.auth.auth_alg = cpu_to_le16(auth_alg); 161146900298SJohannes Berg mgmt->u.auth.auth_transaction = cpu_to_le16(transaction); 1612700e8ea6SJouni Malinen mgmt->u.auth.status_code = cpu_to_le16(status); 161346900298SJohannes Berg if (extra) 161459ae1d12SJohannes Berg skb_put_data(skb, extra, extra_len); 161546900298SJohannes Berg 1616fffd0934SJohannes Berg if (auth_alg == WLAN_AUTH_SHARED_KEY && transaction == 3) { 1617fffd0934SJohannes Berg mgmt->frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED); 1618fffd0934SJohannes Berg err = ieee80211_wep_encrypt(local, skb, key, key_len, key_idx); 1619fffd0934SJohannes Berg WARN_ON(err); 1620fffd0934SJohannes Berg } 1621fffd0934SJohannes Berg 16221672c0e3SJohannes Berg IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT | 16231672c0e3SJohannes Berg tx_flags; 162462ae67beSJohannes Berg ieee80211_tx_skb(sdata, skb); 162546900298SJohannes Berg } 162646900298SJohannes Berg 16276ae16775SAntonio Quartulli void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata, 16284b08d1b6SJohannes Berg const u8 *da, const u8 *bssid, 16294b08d1b6SJohannes Berg u16 stype, u16 reason, 16306ae16775SAntonio Quartulli bool send_frame, u8 *frame_buf) 16316ae16775SAntonio Quartulli { 16326ae16775SAntonio Quartulli struct ieee80211_local *local = sdata->local; 16336ae16775SAntonio Quartulli struct sk_buff *skb; 16346ae16775SAntonio Quartulli struct ieee80211_mgmt *mgmt = (void *)frame_buf; 16356ae16775SAntonio Quartulli 16366ae16775SAntonio Quartulli /* build frame */ 16376ae16775SAntonio Quartulli mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | stype); 16386ae16775SAntonio Quartulli mgmt->duration = 0; /* initialize only */ 16396ae16775SAntonio Quartulli mgmt->seq_ctrl = 0; /* initialize only */ 16404b08d1b6SJohannes Berg memcpy(mgmt->da, da, ETH_ALEN); 16416ae16775SAntonio Quartulli memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN); 16426ae16775SAntonio Quartulli memcpy(mgmt->bssid, bssid, ETH_ALEN); 16436ae16775SAntonio Quartulli /* u.deauth.reason_code == u.disassoc.reason_code */ 16446ae16775SAntonio Quartulli mgmt->u.deauth.reason_code = cpu_to_le16(reason); 16456ae16775SAntonio Quartulli 16466ae16775SAntonio Quartulli if (send_frame) { 16476ae16775SAntonio Quartulli skb = dev_alloc_skb(local->hw.extra_tx_headroom + 16486ae16775SAntonio Quartulli IEEE80211_DEAUTH_FRAME_LEN); 16496ae16775SAntonio Quartulli if (!skb) 16506ae16775SAntonio Quartulli return; 16516ae16775SAntonio Quartulli 16526ae16775SAntonio Quartulli skb_reserve(skb, local->hw.extra_tx_headroom); 16536ae16775SAntonio Quartulli 16546ae16775SAntonio Quartulli /* copy in frame */ 165559ae1d12SJohannes Berg skb_put_data(skb, mgmt, IEEE80211_DEAUTH_FRAME_LEN); 16566ae16775SAntonio Quartulli 16576ae16775SAntonio Quartulli if (sdata->vif.type != NL80211_IFTYPE_STATION || 16586ae16775SAntonio Quartulli !(sdata->u.mgd.flags & IEEE80211_STA_MFP_ENABLED)) 16596ae16775SAntonio Quartulli IEEE80211_SKB_CB(skb)->flags |= 16606ae16775SAntonio Quartulli IEEE80211_TX_INTFL_DONT_ENCRYPT; 16616ae16775SAntonio Quartulli 16626ae16775SAntonio Quartulli ieee80211_tx_skb(sdata, skb); 16636ae16775SAntonio Quartulli } 16646ae16775SAntonio Quartulli } 16656ae16775SAntonio Quartulli 1666c56ef672SDavid Spinadel static int ieee80211_build_preq_ies_band(struct ieee80211_local *local, 1667c56ef672SDavid Spinadel u8 *buffer, size_t buffer_len, 1668c56ef672SDavid Spinadel const u8 *ie, size_t ie_len, 166957fbcce3SJohannes Berg enum nl80211_band band, 1670c56ef672SDavid Spinadel u32 rate_mask, 1671c56ef672SDavid Spinadel struct cfg80211_chan_def *chandef, 167200387f32SJohannes Berg size_t *offset, u32 flags) 1673de95a54bSJohannes Berg { 1674de95a54bSJohannes Berg struct ieee80211_supported_band *sband; 167541cbb0f5SLuca Coelho const struct ieee80211_sta_he_cap *he_cap; 1676c604b9f2SJohannes Berg u8 *pos = buffer, *end = buffer + buffer_len; 1677c56ef672SDavid Spinadel size_t noffset; 16788e664fb3SJohannes Berg int supp_rates_len, i; 16798dcb2003SJouni Malinen u8 rates[32]; 16808dcb2003SJouni Malinen int num_rates; 16818dcb2003SJouni Malinen int ext_rates_len; 16822103dec1SSimon Wunderlich int shift; 16832103dec1SSimon Wunderlich u32 rate_flags; 168440a11ca8SJohannes Berg bool have_80mhz = false; 1685de95a54bSJohannes Berg 1686c56ef672SDavid Spinadel *offset = 0; 1687c56ef672SDavid Spinadel 16884d36ec58SJohannes Berg sband = local->hw.wiphy->bands[band]; 1689d811b3d5SArik Nemtsov if (WARN_ON_ONCE(!sband)) 1690d811b3d5SArik Nemtsov return 0; 1691de95a54bSJohannes Berg 16922103dec1SSimon Wunderlich rate_flags = ieee80211_chandef_rate_flags(chandef); 16932103dec1SSimon Wunderlich shift = ieee80211_chandef_get_shift(chandef); 16942103dec1SSimon Wunderlich 16958dcb2003SJouni Malinen num_rates = 0; 16968dcb2003SJouni Malinen for (i = 0; i < sband->n_bitrates; i++) { 16978dcb2003SJouni Malinen if ((BIT(i) & rate_mask) == 0) 16988dcb2003SJouni Malinen continue; /* skip rate */ 16992103dec1SSimon Wunderlich if ((rate_flags & sband->bitrates[i].flags) != rate_flags) 17002103dec1SSimon Wunderlich continue; 17012103dec1SSimon Wunderlich 17022103dec1SSimon Wunderlich rates[num_rates++] = 17032103dec1SSimon Wunderlich (u8) DIV_ROUND_UP(sband->bitrates[i].bitrate, 17042103dec1SSimon Wunderlich (1 << shift) * 5); 17058dcb2003SJouni Malinen } 17068dcb2003SJouni Malinen 17078dcb2003SJouni Malinen supp_rates_len = min_t(int, num_rates, 8); 17088e664fb3SJohannes Berg 1709c604b9f2SJohannes Berg if (end - pos < 2 + supp_rates_len) 1710c604b9f2SJohannes Berg goto out_err; 1711de95a54bSJohannes Berg *pos++ = WLAN_EID_SUPP_RATES; 17128e664fb3SJohannes Berg *pos++ = supp_rates_len; 17138dcb2003SJouni Malinen memcpy(pos, rates, supp_rates_len); 17148dcb2003SJouni Malinen pos += supp_rates_len; 1715de95a54bSJohannes Berg 17168e664fb3SJohannes Berg /* insert "request information" if in custom IEs */ 17178e664fb3SJohannes Berg if (ie && ie_len) { 17188e664fb3SJohannes Berg static const u8 before_extrates[] = { 17198e664fb3SJohannes Berg WLAN_EID_SSID, 17208e664fb3SJohannes Berg WLAN_EID_SUPP_RATES, 17218e664fb3SJohannes Berg WLAN_EID_REQUEST, 17228e664fb3SJohannes Berg }; 17238e664fb3SJohannes Berg noffset = ieee80211_ie_split(ie, ie_len, 17248e664fb3SJohannes Berg before_extrates, 17258e664fb3SJohannes Berg ARRAY_SIZE(before_extrates), 1726c56ef672SDavid Spinadel *offset); 1727c56ef672SDavid Spinadel if (end - pos < noffset - *offset) 1728c604b9f2SJohannes Berg goto out_err; 1729c56ef672SDavid Spinadel memcpy(pos, ie + *offset, noffset - *offset); 1730c56ef672SDavid Spinadel pos += noffset - *offset; 1731c56ef672SDavid Spinadel *offset = noffset; 17328e664fb3SJohannes Berg } 17338e664fb3SJohannes Berg 17348dcb2003SJouni Malinen ext_rates_len = num_rates - supp_rates_len; 17358dcb2003SJouni Malinen if (ext_rates_len > 0) { 1736c604b9f2SJohannes Berg if (end - pos < 2 + ext_rates_len) 1737c604b9f2SJohannes Berg goto out_err; 1738de95a54bSJohannes Berg *pos++ = WLAN_EID_EXT_SUPP_RATES; 17398dcb2003SJouni Malinen *pos++ = ext_rates_len; 17408dcb2003SJouni Malinen memcpy(pos, rates + supp_rates_len, ext_rates_len); 17418dcb2003SJouni Malinen pos += ext_rates_len; 17428e664fb3SJohannes Berg } 17438e664fb3SJohannes Berg 174457fbcce3SJohannes Berg if (chandef->chan && sband->band == NL80211_BAND_2GHZ) { 1745c604b9f2SJohannes Berg if (end - pos < 3) 1746c604b9f2SJohannes Berg goto out_err; 1747651b5225SJouni Malinen *pos++ = WLAN_EID_DS_PARAMS; 1748651b5225SJouni Malinen *pos++ = 1; 17492103dec1SSimon Wunderlich *pos++ = ieee80211_frequency_to_channel( 17502103dec1SSimon Wunderlich chandef->chan->center_freq); 1751651b5225SJouni Malinen } 1752651b5225SJouni Malinen 1753b9771d41SJohannes Berg if (flags & IEEE80211_PROBE_FLAG_MIN_CONTENT) 1754b9771d41SJohannes Berg goto done; 1755b9771d41SJohannes Berg 17568e664fb3SJohannes Berg /* insert custom IEs that go before HT */ 17578e664fb3SJohannes Berg if (ie && ie_len) { 17588e664fb3SJohannes Berg static const u8 before_ht[] = { 1759a7f26d80SJohannes Berg /* 1760a7f26d80SJohannes Berg * no need to list the ones split off already 1761a7f26d80SJohannes Berg * (or generated here) 1762a7f26d80SJohannes Berg */ 17638e664fb3SJohannes Berg WLAN_EID_DS_PARAMS, 17648e664fb3SJohannes Berg WLAN_EID_SUPPORTED_REGULATORY_CLASSES, 17658e664fb3SJohannes Berg }; 17668e664fb3SJohannes Berg noffset = ieee80211_ie_split(ie, ie_len, 17678e664fb3SJohannes Berg before_ht, ARRAY_SIZE(before_ht), 1768c56ef672SDavid Spinadel *offset); 1769c56ef672SDavid Spinadel if (end - pos < noffset - *offset) 1770c604b9f2SJohannes Berg goto out_err; 1771c56ef672SDavid Spinadel memcpy(pos, ie + *offset, noffset - *offset); 1772c56ef672SDavid Spinadel pos += noffset - *offset; 1773c56ef672SDavid Spinadel *offset = noffset; 1774de95a54bSJohannes Berg } 1775de95a54bSJohannes Berg 1776c604b9f2SJohannes Berg if (sband->ht_cap.ht_supported) { 1777c604b9f2SJohannes Berg if (end - pos < 2 + sizeof(struct ieee80211_ht_cap)) 1778c604b9f2SJohannes Berg goto out_err; 1779ef96a842SBen Greear pos = ieee80211_ie_build_ht_cap(pos, &sband->ht_cap, 1780ef96a842SBen Greear sband->ht_cap.cap); 1781c604b9f2SJohannes Berg } 17825ef2d41aSJohannes Berg 17834d952300SJohannes Berg /* insert custom IEs that go before VHT */ 17848e664fb3SJohannes Berg if (ie && ie_len) { 17854d952300SJohannes Berg static const u8 before_vht[] = { 1786a7f26d80SJohannes Berg /* 1787a7f26d80SJohannes Berg * no need to list the ones split off already 1788a7f26d80SJohannes Berg * (or generated here) 1789a7f26d80SJohannes Berg */ 17904d952300SJohannes Berg WLAN_EID_BSS_COEX_2040, 17914d952300SJohannes Berg WLAN_EID_EXT_CAPABILITY, 17924d952300SJohannes Berg WLAN_EID_SSID_LIST, 17934d952300SJohannes Berg WLAN_EID_CHANNEL_USAGE, 17944d952300SJohannes Berg WLAN_EID_INTERWORKING, 1795b44eebeaSLiad Kaufman WLAN_EID_MESH_ID, 1796a7f26d80SJohannes Berg /* 60 GHz (Multi-band, DMG, MMS) can't happen */ 17974d952300SJohannes Berg }; 17984d952300SJohannes Berg noffset = ieee80211_ie_split(ie, ie_len, 17994d952300SJohannes Berg before_vht, ARRAY_SIZE(before_vht), 1800c56ef672SDavid Spinadel *offset); 1801c56ef672SDavid Spinadel if (end - pos < noffset - *offset) 1802c604b9f2SJohannes Berg goto out_err; 1803c56ef672SDavid Spinadel memcpy(pos, ie + *offset, noffset - *offset); 1804c56ef672SDavid Spinadel pos += noffset - *offset; 1805c56ef672SDavid Spinadel *offset = noffset; 1806de95a54bSJohannes Berg } 1807de95a54bSJohannes Berg 180840a11ca8SJohannes Berg /* Check if any channel in this sband supports at least 80 MHz */ 180940a11ca8SJohannes Berg for (i = 0; i < sband->n_channels; i++) { 1810fa44b988SArik Nemtsov if (sband->channels[i].flags & (IEEE80211_CHAN_DISABLED | 1811fa44b988SArik Nemtsov IEEE80211_CHAN_NO_80MHZ)) 1812fa44b988SArik Nemtsov continue; 1813fa44b988SArik Nemtsov 181440a11ca8SJohannes Berg have_80mhz = true; 181540a11ca8SJohannes Berg break; 181640a11ca8SJohannes Berg } 181740a11ca8SJohannes Berg 181840a11ca8SJohannes Berg if (sband->vht_cap.vht_supported && have_80mhz) { 1819c604b9f2SJohannes Berg if (end - pos < 2 + sizeof(struct ieee80211_vht_cap)) 1820c604b9f2SJohannes Berg goto out_err; 1821ba0afa2fSMahesh Palivela pos = ieee80211_ie_build_vht_cap(pos, &sband->vht_cap, 1822ba0afa2fSMahesh Palivela sband->vht_cap.cap); 1823c604b9f2SJohannes Berg } 1824ba0afa2fSMahesh Palivela 182541cbb0f5SLuca Coelho /* insert custom IEs that go before HE */ 182641cbb0f5SLuca Coelho if (ie && ie_len) { 182741cbb0f5SLuca Coelho static const u8 before_he[] = { 182841cbb0f5SLuca Coelho /* 182941cbb0f5SLuca Coelho * no need to list the ones split off before VHT 183041cbb0f5SLuca Coelho * or generated here 183141cbb0f5SLuca Coelho */ 183241cbb0f5SLuca Coelho WLAN_EID_EXTENSION, WLAN_EID_EXT_FILS_REQ_PARAMS, 183341cbb0f5SLuca Coelho WLAN_EID_AP_CSN, 183441cbb0f5SLuca Coelho /* TODO: add 11ah/11aj/11ak elements */ 183541cbb0f5SLuca Coelho }; 183641cbb0f5SLuca Coelho noffset = ieee80211_ie_split(ie, ie_len, 183741cbb0f5SLuca Coelho before_he, ARRAY_SIZE(before_he), 183841cbb0f5SLuca Coelho *offset); 183941cbb0f5SLuca Coelho if (end - pos < noffset - *offset) 184041cbb0f5SLuca Coelho goto out_err; 184141cbb0f5SLuca Coelho memcpy(pos, ie + *offset, noffset - *offset); 184241cbb0f5SLuca Coelho pos += noffset - *offset; 184341cbb0f5SLuca Coelho *offset = noffset; 184441cbb0f5SLuca Coelho } 184541cbb0f5SLuca Coelho 184641cbb0f5SLuca Coelho he_cap = ieee80211_get_he_sta_cap(sband); 184741cbb0f5SLuca Coelho if (he_cap) { 184841cbb0f5SLuca Coelho pos = ieee80211_ie_build_he_cap(pos, he_cap, end); 184941cbb0f5SLuca Coelho if (!pos) 185041cbb0f5SLuca Coelho goto out_err; 185141cbb0f5SLuca Coelho } 185241cbb0f5SLuca Coelho 185341cbb0f5SLuca Coelho /* 185441cbb0f5SLuca Coelho * If adding more here, adjust code in main.c 185541cbb0f5SLuca Coelho * that calculates local->scan_ies_len. 185641cbb0f5SLuca Coelho */ 185741cbb0f5SLuca Coelho 1858de95a54bSJohannes Berg return pos - buffer; 1859c604b9f2SJohannes Berg out_err: 1860c604b9f2SJohannes Berg WARN_ONCE(1, "not enough space for preq IEs\n"); 1861b9771d41SJohannes Berg done: 1862c604b9f2SJohannes Berg return pos - buffer; 1863de95a54bSJohannes Berg } 1864de95a54bSJohannes Berg 1865c56ef672SDavid Spinadel int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer, 1866c56ef672SDavid Spinadel size_t buffer_len, 1867c56ef672SDavid Spinadel struct ieee80211_scan_ies *ie_desc, 1868c56ef672SDavid Spinadel const u8 *ie, size_t ie_len, 1869c56ef672SDavid Spinadel u8 bands_used, u32 *rate_masks, 187000387f32SJohannes Berg struct cfg80211_chan_def *chandef, 187100387f32SJohannes Berg u32 flags) 1872c56ef672SDavid Spinadel { 1873c56ef672SDavid Spinadel size_t pos = 0, old_pos = 0, custom_ie_offset = 0; 1874c56ef672SDavid Spinadel int i; 1875c56ef672SDavid Spinadel 1876c56ef672SDavid Spinadel memset(ie_desc, 0, sizeof(*ie_desc)); 1877c56ef672SDavid Spinadel 187857fbcce3SJohannes Berg for (i = 0; i < NUM_NL80211_BANDS; i++) { 1879c56ef672SDavid Spinadel if (bands_used & BIT(i)) { 1880c56ef672SDavid Spinadel pos += ieee80211_build_preq_ies_band(local, 1881c56ef672SDavid Spinadel buffer + pos, 1882c56ef672SDavid Spinadel buffer_len - pos, 1883c56ef672SDavid Spinadel ie, ie_len, i, 1884c56ef672SDavid Spinadel rate_masks[i], 1885c56ef672SDavid Spinadel chandef, 188600387f32SJohannes Berg &custom_ie_offset, 188700387f32SJohannes Berg flags); 1888c56ef672SDavid Spinadel ie_desc->ies[i] = buffer + old_pos; 1889c56ef672SDavid Spinadel ie_desc->len[i] = pos - old_pos; 1890c56ef672SDavid Spinadel old_pos = pos; 1891c56ef672SDavid Spinadel } 1892c56ef672SDavid Spinadel } 1893c56ef672SDavid Spinadel 1894c56ef672SDavid Spinadel /* add any remaining custom IEs */ 1895c56ef672SDavid Spinadel if (ie && ie_len) { 1896c56ef672SDavid Spinadel if (WARN_ONCE(buffer_len - pos < ie_len - custom_ie_offset, 1897c56ef672SDavid Spinadel "not enough space for preq custom IEs\n")) 1898c56ef672SDavid Spinadel return pos; 1899c56ef672SDavid Spinadel memcpy(buffer + pos, ie + custom_ie_offset, 1900c56ef672SDavid Spinadel ie_len - custom_ie_offset); 1901c56ef672SDavid Spinadel ie_desc->common_ies = buffer + pos; 1902c56ef672SDavid Spinadel ie_desc->common_ie_len = ie_len - custom_ie_offset; 1903c56ef672SDavid Spinadel pos += ie_len - custom_ie_offset; 1904c56ef672SDavid Spinadel } 1905c56ef672SDavid Spinadel 1906c56ef672SDavid Spinadel return pos; 1907c56ef672SDavid Spinadel }; 1908c56ef672SDavid Spinadel 1909a619a4c0SJuuso Oikarinen struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata, 1910a344d677SJohannes Berg const u8 *src, const u8 *dst, 1911a344d677SJohannes Berg u32 ratemask, 19126b77863bSJohannes Berg struct ieee80211_channel *chan, 1913de95a54bSJohannes Berg const u8 *ssid, size_t ssid_len, 1914a806c558SPaul Stewart const u8 *ie, size_t ie_len, 191500387f32SJohannes Berg u32 flags) 191646900298SJohannes Berg { 191746900298SJohannes Berg struct ieee80211_local *local = sdata->local; 19182103dec1SSimon Wunderlich struct cfg80211_chan_def chandef; 191946900298SJohannes Berg struct sk_buff *skb; 192046900298SJohannes Berg struct ieee80211_mgmt *mgmt; 1921b9a9ada1SJohannes Berg int ies_len; 192257fbcce3SJohannes Berg u32 rate_masks[NUM_NL80211_BANDS] = {}; 1923c56ef672SDavid Spinadel struct ieee80211_scan_ies dummy_ie_desc; 192446900298SJohannes Berg 1925a806c558SPaul Stewart /* 1926a806c558SPaul Stewart * Do not send DS Channel parameter for directed probe requests 1927a806c558SPaul Stewart * in order to maximize the chance that we get a response. Some 1928a806c558SPaul Stewart * badly-behaved APs don't respond when this parameter is included. 1929a806c558SPaul Stewart */ 19302103dec1SSimon Wunderlich chandef.width = sdata->vif.bss_conf.chandef.width; 193100387f32SJohannes Berg if (flags & IEEE80211_PROBE_FLAG_DIRECTED) 19322103dec1SSimon Wunderlich chandef.chan = NULL; 1933a806c558SPaul Stewart else 19342103dec1SSimon Wunderlich chandef.chan = chan; 1935651b5225SJouni Malinen 1936a344d677SJohannes Berg skb = ieee80211_probereq_get(&local->hw, src, ssid, ssid_len, 1937a344d677SJohannes Berg 100 + ie_len); 19385b2bbf75SJohannes Berg if (!skb) 1939b9a9ada1SJohannes Berg return NULL; 1940b9a9ada1SJohannes Berg 1941c56ef672SDavid Spinadel rate_masks[chan->band] = ratemask; 1942b9a9ada1SJohannes Berg ies_len = ieee80211_build_preq_ies(local, skb_tail_pointer(skb), 1943c56ef672SDavid Spinadel skb_tailroom(skb), &dummy_ie_desc, 1944c56ef672SDavid Spinadel ie, ie_len, BIT(chan->band), 194500387f32SJohannes Berg rate_masks, &chandef, flags); 1946b9a9ada1SJohannes Berg skb_put(skb, ies_len); 19477c12ce8bSKalle Valo 194846900298SJohannes Berg if (dst) { 19497c12ce8bSKalle Valo mgmt = (struct ieee80211_mgmt *) skb->data; 195046900298SJohannes Berg memcpy(mgmt->da, dst, ETH_ALEN); 195146900298SJohannes Berg memcpy(mgmt->bssid, dst, ETH_ALEN); 195246900298SJohannes Berg } 195346900298SJohannes Berg 195462ae67beSJohannes Berg IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT; 19555b2bbf75SJohannes Berg 1956a619a4c0SJuuso Oikarinen return skb; 1957a619a4c0SJuuso Oikarinen } 1958a619a4c0SJuuso Oikarinen 19592103dec1SSimon Wunderlich u32 ieee80211_sta_get_rates(struct ieee80211_sub_if_data *sdata, 196046900298SJohannes Berg struct ieee802_11_elems *elems, 196157fbcce3SJohannes Berg enum nl80211_band band, u32 *basic_rates) 196246900298SJohannes Berg { 196346900298SJohannes Berg struct ieee80211_supported_band *sband; 196446900298SJohannes Berg size_t num_rates; 19652103dec1SSimon Wunderlich u32 supp_rates, rate_flags; 19662103dec1SSimon Wunderlich int i, j, shift; 196721a8e9ddSMohammed Shafi Shajakhan 19682103dec1SSimon Wunderlich sband = sdata->local->hw.wiphy->bands[band]; 196921a8e9ddSMohammed Shafi Shajakhan if (WARN_ON(!sband)) 197021a8e9ddSMohammed Shafi Shajakhan return 1; 19712103dec1SSimon Wunderlich 19722103dec1SSimon Wunderlich rate_flags = ieee80211_chandef_rate_flags(&sdata->vif.bss_conf.chandef); 19732103dec1SSimon Wunderlich shift = ieee80211_vif_get_shift(&sdata->vif); 197446900298SJohannes Berg 197546900298SJohannes Berg num_rates = sband->n_bitrates; 197646900298SJohannes Berg supp_rates = 0; 197746900298SJohannes Berg for (i = 0; i < elems->supp_rates_len + 197846900298SJohannes Berg elems->ext_supp_rates_len; i++) { 197946900298SJohannes Berg u8 rate = 0; 198046900298SJohannes Berg int own_rate; 19819ebb61a2SAshok Nagarajan bool is_basic; 198246900298SJohannes Berg if (i < elems->supp_rates_len) 198346900298SJohannes Berg rate = elems->supp_rates[i]; 198446900298SJohannes Berg else if (elems->ext_supp_rates) 198546900298SJohannes Berg rate = elems->ext_supp_rates 198646900298SJohannes Berg [i - elems->supp_rates_len]; 198746900298SJohannes Berg own_rate = 5 * (rate & 0x7f); 19889ebb61a2SAshok Nagarajan is_basic = !!(rate & 0x80); 19899ebb61a2SAshok Nagarajan 19909ebb61a2SAshok Nagarajan if (is_basic && (rate & 0x7f) == BSS_MEMBERSHIP_SELECTOR_HT_PHY) 19919ebb61a2SAshok Nagarajan continue; 19929ebb61a2SAshok Nagarajan 19939ebb61a2SAshok Nagarajan for (j = 0; j < num_rates; j++) { 19942103dec1SSimon Wunderlich int brate; 19952103dec1SSimon Wunderlich if ((rate_flags & sband->bitrates[j].flags) 19962103dec1SSimon Wunderlich != rate_flags) 19972103dec1SSimon Wunderlich continue; 19982103dec1SSimon Wunderlich 19992103dec1SSimon Wunderlich brate = DIV_ROUND_UP(sband->bitrates[j].bitrate, 20002103dec1SSimon Wunderlich 1 << shift); 20012103dec1SSimon Wunderlich 20022103dec1SSimon Wunderlich if (brate == own_rate) { 200346900298SJohannes Berg supp_rates |= BIT(j); 20049ebb61a2SAshok Nagarajan if (basic_rates && is_basic) 20059ebb61a2SAshok Nagarajan *basic_rates |= BIT(j); 20069ebb61a2SAshok Nagarajan } 20079ebb61a2SAshok Nagarajan } 200846900298SJohannes Berg } 200946900298SJohannes Berg return supp_rates; 201046900298SJohannes Berg } 2011f2753ddbSJohannes Berg 201284f6a01cSJohannes Berg void ieee80211_stop_device(struct ieee80211_local *local) 201384f6a01cSJohannes Berg { 201484f6a01cSJohannes Berg ieee80211_led_radio(local, false); 201567408c8cSJohannes Berg ieee80211_mod_tpt_led_trig(local, 0, IEEE80211_TPT_LEDTRIG_FL_RADIO); 201684f6a01cSJohannes Berg 201784f6a01cSJohannes Berg cancel_work_sync(&local->reconfig_filter); 201884f6a01cSJohannes Berg 201984f6a01cSJohannes Berg flush_workqueue(local->workqueue); 2020678f415fSLennert Buytenhek drv_stop(local); 202184f6a01cSJohannes Berg } 202284f6a01cSJohannes Berg 202374430f94SJohannes Berg static void ieee80211_flush_completed_scan(struct ieee80211_local *local, 202474430f94SJohannes Berg bool aborted) 202574430f94SJohannes Berg { 202674430f94SJohannes Berg /* It's possible that we don't handle the scan completion in 202774430f94SJohannes Berg * time during suspend, so if it's still marked as completed 202874430f94SJohannes Berg * here, queue the work and flush it to clean things up. 202974430f94SJohannes Berg * Instead of calling the worker function directly here, we 203074430f94SJohannes Berg * really queue it to avoid potential races with other flows 203174430f94SJohannes Berg * scheduling the same work. 203274430f94SJohannes Berg */ 203374430f94SJohannes Berg if (test_bit(SCAN_COMPLETED, &local->scanning)) { 203474430f94SJohannes Berg /* If coming from reconfiguration failure, abort the scan so 203574430f94SJohannes Berg * we don't attempt to continue a partial HW scan - which is 203674430f94SJohannes Berg * possible otherwise if (e.g.) the 2.4 GHz portion was the 203774430f94SJohannes Berg * completed scan, and a 5 GHz portion is still pending. 203874430f94SJohannes Berg */ 203974430f94SJohannes Berg if (aborted) 204074430f94SJohannes Berg set_bit(SCAN_ABORTED, &local->scanning); 204174430f94SJohannes Berg ieee80211_queue_delayed_work(&local->hw, &local->scan_work, 0); 204274430f94SJohannes Berg flush_delayed_work(&local->scan_work); 204374430f94SJohannes Berg } 204474430f94SJohannes Berg } 204574430f94SJohannes Berg 2046f6837ba8SJohannes Berg static void ieee80211_handle_reconfig_failure(struct ieee80211_local *local) 2047f6837ba8SJohannes Berg { 2048f6837ba8SJohannes Berg struct ieee80211_sub_if_data *sdata; 2049f6837ba8SJohannes Berg struct ieee80211_chanctx *ctx; 2050f6837ba8SJohannes Berg 2051f6837ba8SJohannes Berg /* 2052f6837ba8SJohannes Berg * We get here if during resume the device can't be restarted properly. 2053f6837ba8SJohannes Berg * We might also get here if this happens during HW reset, which is a 2054f6837ba8SJohannes Berg * slightly different situation and we need to drop all connections in 2055f6837ba8SJohannes Berg * the latter case. 2056f6837ba8SJohannes Berg * 2057f6837ba8SJohannes Berg * Ask cfg80211 to turn off all interfaces, this will result in more 2058f6837ba8SJohannes Berg * warnings but at least we'll then get into a clean stopped state. 2059f6837ba8SJohannes Berg */ 2060f6837ba8SJohannes Berg 2061f6837ba8SJohannes Berg local->resuming = false; 2062f6837ba8SJohannes Berg local->suspended = false; 20637584f88fSEliad Peller local->in_reconfig = false; 2064f6837ba8SJohannes Berg 206574430f94SJohannes Berg ieee80211_flush_completed_scan(local, true); 206674430f94SJohannes Berg 2067f6837ba8SJohannes Berg /* scheduled scan clearly can't be running any more, but tell 2068f6837ba8SJohannes Berg * cfg80211 and clear local state 2069f6837ba8SJohannes Berg */ 2070f6837ba8SJohannes Berg ieee80211_sched_scan_end(local); 2071f6837ba8SJohannes Berg 2072f6837ba8SJohannes Berg list_for_each_entry(sdata, &local->interfaces, list) 2073f6837ba8SJohannes Berg sdata->flags &= ~IEEE80211_SDATA_IN_DRIVER; 2074f6837ba8SJohannes Berg 2075f6837ba8SJohannes Berg /* Mark channel contexts as not being in the driver any more to avoid 2076f6837ba8SJohannes Berg * removing them from the driver during the shutdown process... 2077f6837ba8SJohannes Berg */ 2078f6837ba8SJohannes Berg mutex_lock(&local->chanctx_mtx); 2079f6837ba8SJohannes Berg list_for_each_entry(ctx, &local->chanctx_list, list) 2080f6837ba8SJohannes Berg ctx->driver_present = false; 2081f6837ba8SJohannes Berg mutex_unlock(&local->chanctx_mtx); 2082f6837ba8SJohannes Berg 2083f6837ba8SJohannes Berg cfg80211_shutdown_all_interfaces(local->hw.wiphy); 2084f6837ba8SJohannes Berg } 2085f6837ba8SJohannes Berg 2086153a5fc4SStanislaw Gruszka static void ieee80211_assign_chanctx(struct ieee80211_local *local, 2087153a5fc4SStanislaw Gruszka struct ieee80211_sub_if_data *sdata) 2088153a5fc4SStanislaw Gruszka { 2089153a5fc4SStanislaw Gruszka struct ieee80211_chanctx_conf *conf; 2090153a5fc4SStanislaw Gruszka struct ieee80211_chanctx *ctx; 2091153a5fc4SStanislaw Gruszka 2092153a5fc4SStanislaw Gruszka if (!local->use_chanctx) 2093153a5fc4SStanislaw Gruszka return; 2094153a5fc4SStanislaw Gruszka 2095153a5fc4SStanislaw Gruszka mutex_lock(&local->chanctx_mtx); 2096153a5fc4SStanislaw Gruszka conf = rcu_dereference_protected(sdata->vif.chanctx_conf, 2097153a5fc4SStanislaw Gruszka lockdep_is_held(&local->chanctx_mtx)); 2098153a5fc4SStanislaw Gruszka if (conf) { 2099153a5fc4SStanislaw Gruszka ctx = container_of(conf, struct ieee80211_chanctx, conf); 2100153a5fc4SStanislaw Gruszka drv_assign_vif_chanctx(local, sdata, ctx); 2101153a5fc4SStanislaw Gruszka } 2102153a5fc4SStanislaw Gruszka mutex_unlock(&local->chanctx_mtx); 2103153a5fc4SStanislaw Gruszka } 2104153a5fc4SStanislaw Gruszka 21051ea2c864SJohannes Berg static void ieee80211_reconfig_stations(struct ieee80211_sub_if_data *sdata) 21061ea2c864SJohannes Berg { 21071ea2c864SJohannes Berg struct ieee80211_local *local = sdata->local; 21081ea2c864SJohannes Berg struct sta_info *sta; 21091ea2c864SJohannes Berg 21101ea2c864SJohannes Berg /* add STAs back */ 21111ea2c864SJohannes Berg mutex_lock(&local->sta_mtx); 21121ea2c864SJohannes Berg list_for_each_entry(sta, &local->sta_list, list) { 21131ea2c864SJohannes Berg enum ieee80211_sta_state state; 21141ea2c864SJohannes Berg 21151ea2c864SJohannes Berg if (!sta->uploaded || sta->sdata != sdata) 21161ea2c864SJohannes Berg continue; 21171ea2c864SJohannes Berg 21181ea2c864SJohannes Berg for (state = IEEE80211_STA_NOTEXIST; 21191ea2c864SJohannes Berg state < sta->sta_state; state++) 21201ea2c864SJohannes Berg WARN_ON(drv_sta_state(local, sta->sdata, sta, state, 21211ea2c864SJohannes Berg state + 1)); 21221ea2c864SJohannes Berg } 21231ea2c864SJohannes Berg mutex_unlock(&local->sta_mtx); 21241ea2c864SJohannes Berg } 21251ea2c864SJohannes Berg 2126167e33f4SAyala Beker static int ieee80211_reconfig_nan(struct ieee80211_sub_if_data *sdata) 2127167e33f4SAyala Beker { 2128167e33f4SAyala Beker struct cfg80211_nan_func *func, **funcs; 2129167e33f4SAyala Beker int res, id, i = 0; 2130167e33f4SAyala Beker 2131167e33f4SAyala Beker res = drv_start_nan(sdata->local, sdata, 2132167e33f4SAyala Beker &sdata->u.nan.conf); 2133167e33f4SAyala Beker if (WARN_ON(res)) 2134167e33f4SAyala Beker return res; 2135167e33f4SAyala Beker 21366396bb22SKees Cook funcs = kcalloc(sdata->local->hw.max_nan_de_entries + 1, 21376396bb22SKees Cook sizeof(*funcs), 21386396bb22SKees Cook GFP_KERNEL); 2139167e33f4SAyala Beker if (!funcs) 2140167e33f4SAyala Beker return -ENOMEM; 2141167e33f4SAyala Beker 2142167e33f4SAyala Beker /* Add all the functions: 2143167e33f4SAyala Beker * This is a little bit ugly. We need to call a potentially sleeping 2144167e33f4SAyala Beker * callback for each NAN function, so we can't hold the spinlock. 2145167e33f4SAyala Beker */ 2146167e33f4SAyala Beker spin_lock_bh(&sdata->u.nan.func_lock); 2147167e33f4SAyala Beker 2148167e33f4SAyala Beker idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) 2149167e33f4SAyala Beker funcs[i++] = func; 2150167e33f4SAyala Beker 2151167e33f4SAyala Beker spin_unlock_bh(&sdata->u.nan.func_lock); 2152167e33f4SAyala Beker 2153167e33f4SAyala Beker for (i = 0; funcs[i]; i++) { 2154167e33f4SAyala Beker res = drv_add_nan_func(sdata->local, sdata, funcs[i]); 2155167e33f4SAyala Beker if (WARN_ON(res)) 2156167e33f4SAyala Beker ieee80211_nan_func_terminated(&sdata->vif, 2157167e33f4SAyala Beker funcs[i]->instance_id, 2158167e33f4SAyala Beker NL80211_NAN_FUNC_TERM_REASON_ERROR, 2159167e33f4SAyala Beker GFP_KERNEL); 2160167e33f4SAyala Beker } 2161167e33f4SAyala Beker 2162167e33f4SAyala Beker kfree(funcs); 2163167e33f4SAyala Beker 2164167e33f4SAyala Beker return 0; 2165167e33f4SAyala Beker } 2166167e33f4SAyala Beker 2167f2753ddbSJohannes Berg int ieee80211_reconfig(struct ieee80211_local *local) 2168f2753ddbSJohannes Berg { 2169f2753ddbSJohannes Berg struct ieee80211_hw *hw = &local->hw; 2170f2753ddbSJohannes Berg struct ieee80211_sub_if_data *sdata; 217155de908aSJohannes Berg struct ieee80211_chanctx *ctx; 2172f2753ddbSJohannes Berg struct sta_info *sta; 21732683d65bSEliad Peller int res, i; 2174d888130aSJohannes Berg bool reconfig_due_to_wowlan = false; 2175d43c6b6eSDavid Spinadel struct ieee80211_sub_if_data *sched_scan_sdata; 21766ea0a69cSJohannes Berg struct cfg80211_sched_scan_request *sched_scan_req; 2177d43c6b6eSDavid Spinadel bool sched_scan_stopped = false; 2178b0485e9fSEliad Peller bool suspended = local->suspended; 2179d888130aSJohannes Berg 21800f8b8245SEliad Peller /* nothing to do if HW shouldn't run */ 21810f8b8245SEliad Peller if (!local->open_count) 21820f8b8245SEliad Peller goto wake_up; 21830f8b8245SEliad Peller 21848f21b0adSJohannes Berg #ifdef CONFIG_PM 2185b0485e9fSEliad Peller if (suspended) 2186ceb99fe0SJohannes Berg local->resuming = true; 2187f2753ddbSJohannes Berg 2188eecc4800SJohannes Berg if (local->wowlan) { 2189b0485e9fSEliad Peller /* 2190b0485e9fSEliad Peller * In the wowlan case, both mac80211 and the device 2191b0485e9fSEliad Peller * are functional when the resume op is called, so 2192b0485e9fSEliad Peller * clear local->suspended so the device could operate 2193b0485e9fSEliad Peller * normally (e.g. pass rx frames). 2194b0485e9fSEliad Peller */ 2195b0485e9fSEliad Peller local->suspended = false; 2196eecc4800SJohannes Berg res = drv_resume(local); 219727b3eb9cSJohannes Berg local->wowlan = false; 2198eecc4800SJohannes Berg if (res < 0) { 2199eecc4800SJohannes Berg local->resuming = false; 2200eecc4800SJohannes Berg return res; 2201eecc4800SJohannes Berg } 2202eecc4800SJohannes Berg if (res == 0) 2203eecc4800SJohannes Berg goto wake_up; 2204eecc4800SJohannes Berg WARN_ON(res > 1); 2205eecc4800SJohannes Berg /* 2206eecc4800SJohannes Berg * res is 1, which means the driver requested 2207eecc4800SJohannes Berg * to go through a regular reset on wakeup. 2208b0485e9fSEliad Peller * restore local->suspended in this case. 2209eecc4800SJohannes Berg */ 2210d888130aSJohannes Berg reconfig_due_to_wowlan = true; 2211b0485e9fSEliad Peller local->suspended = true; 2212eecc4800SJohannes Berg } 2213eecc4800SJohannes Berg #endif 221494f9b97bSJohannes Berg 221524feda00SLuis R. Rodriguez /* 221643d6df00SEliad Peller * In case of hw_restart during suspend (without wowlan), 221743d6df00SEliad Peller * cancel restart work, as we are reconfiguring the device 221843d6df00SEliad Peller * anyway. 221943d6df00SEliad Peller * Note that restart_work is scheduled on a frozen workqueue, 222043d6df00SEliad Peller * so we can't deadlock in this case. 222143d6df00SEliad Peller */ 222243d6df00SEliad Peller if (suspended && local->in_reconfig && !reconfig_due_to_wowlan) 222343d6df00SEliad Peller cancel_work_sync(&local->restart_work); 222443d6df00SEliad Peller 2225968a76ceSEliad Peller local->started = false; 2226968a76ceSEliad Peller 222743d6df00SEliad Peller /* 222824feda00SLuis R. Rodriguez * Upon resume hardware can sometimes be goofy due to 222924feda00SLuis R. Rodriguez * various platform / driver / bus issues, so restarting 223024feda00SLuis R. Rodriguez * the device may at times not work immediately. Propagate 223124feda00SLuis R. Rodriguez * the error. 223224feda00SLuis R. Rodriguez */ 223324487981SJohannes Berg res = drv_start(local); 223424feda00SLuis R. Rodriguez if (res) { 2235b0485e9fSEliad Peller if (suspended) 2236f6837ba8SJohannes Berg WARN(1, "Hardware became unavailable upon resume. This could be a software issue prior to suspend or a hardware issue.\n"); 2237f6837ba8SJohannes Berg else 2238f6837ba8SJohannes Berg WARN(1, "Hardware became unavailable during restart.\n"); 2239f6837ba8SJohannes Berg ieee80211_handle_reconfig_failure(local); 224024feda00SLuis R. Rodriguez return res; 224124feda00SLuis R. Rodriguez } 2242f2753ddbSJohannes Berg 22437f281975SYogesh Ashok Powar /* setup fragmentation threshold */ 22447f281975SYogesh Ashok Powar drv_set_frag_threshold(local, hw->wiphy->frag_threshold); 22457f281975SYogesh Ashok Powar 22467f281975SYogesh Ashok Powar /* setup RTS threshold */ 22477f281975SYogesh Ashok Powar drv_set_rts_threshold(local, hw->wiphy->rts_threshold); 22487f281975SYogesh Ashok Powar 22497f281975SYogesh Ashok Powar /* reset coverage class */ 22507f281975SYogesh Ashok Powar drv_set_coverage_class(local, hw->wiphy->coverage_class); 22517f281975SYogesh Ashok Powar 22521f87f7d3SJohannes Berg ieee80211_led_radio(local, true); 225367408c8cSJohannes Berg ieee80211_mod_tpt_led_trig(local, 225467408c8cSJohannes Berg IEEE80211_TPT_LEDTRIG_FL_RADIO, 0); 2255f2753ddbSJohannes Berg 2256f2753ddbSJohannes Berg /* add interfaces */ 22574b6f1dd6SJohannes Berg sdata = rtnl_dereference(local->monitor_sdata); 22584b6f1dd6SJohannes Berg if (sdata) { 22593c3e21e7SJohannes Berg /* in HW restart it exists already */ 22603c3e21e7SJohannes Berg WARN_ON(local->resuming); 22614b6f1dd6SJohannes Berg res = drv_add_interface(local, sdata); 22624b6f1dd6SJohannes Berg if (WARN_ON(res)) { 22630c2bef46SMonam Agarwal RCU_INIT_POINTER(local->monitor_sdata, NULL); 22644b6f1dd6SJohannes Berg synchronize_net(); 22654b6f1dd6SJohannes Berg kfree(sdata); 22664b6f1dd6SJohannes Berg } 22674b6f1dd6SJohannes Berg } 22684b6f1dd6SJohannes Berg 2269f2753ddbSJohannes Berg list_for_each_entry(sdata, &local->interfaces, list) { 2270f2753ddbSJohannes Berg if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 2271f2753ddbSJohannes Berg sdata->vif.type != NL80211_IFTYPE_MONITOR && 2272c8fff3dcSLuciano Coelho ieee80211_sdata_running(sdata)) { 22737b7eab6fSJohannes Berg res = drv_add_interface(local, sdata); 2274c8fff3dcSLuciano Coelho if (WARN_ON(res)) 2275c8fff3dcSLuciano Coelho break; 2276c8fff3dcSLuciano Coelho } 2277c8fff3dcSLuciano Coelho } 2278c8fff3dcSLuciano Coelho 2279c8fff3dcSLuciano Coelho /* If adding any of the interfaces failed above, roll back and 2280c8fff3dcSLuciano Coelho * report failure. 2281c8fff3dcSLuciano Coelho */ 2282c8fff3dcSLuciano Coelho if (res) { 2283c8fff3dcSLuciano Coelho list_for_each_entry_continue_reverse(sdata, &local->interfaces, 2284c8fff3dcSLuciano Coelho list) 2285c8fff3dcSLuciano Coelho if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 2286c8fff3dcSLuciano Coelho sdata->vif.type != NL80211_IFTYPE_MONITOR && 2287c8fff3dcSLuciano Coelho ieee80211_sdata_running(sdata)) 2288c8fff3dcSLuciano Coelho drv_remove_interface(local, sdata); 2289c8fff3dcSLuciano Coelho ieee80211_handle_reconfig_failure(local); 2290c8fff3dcSLuciano Coelho return res; 2291f2753ddbSJohannes Berg } 2292f2753ddbSJohannes Berg 229355de908aSJohannes Berg /* add channel contexts */ 2294f0dea9c7SArend van Spriel if (local->use_chanctx) { 229555de908aSJohannes Berg mutex_lock(&local->chanctx_mtx); 229655de908aSJohannes Berg list_for_each_entry(ctx, &local->chanctx_list, list) 22975bcae31dSMichal Kazior if (ctx->replace_state != 22985bcae31dSMichal Kazior IEEE80211_CHANCTX_REPLACES_OTHER) 229955de908aSJohannes Berg WARN_ON(drv_add_chanctx(local, ctx)); 230055de908aSJohannes Berg mutex_unlock(&local->chanctx_mtx); 230155de908aSJohannes Berg 2302fe5f2559SJohannes Berg sdata = rtnl_dereference(local->monitor_sdata); 2303153a5fc4SStanislaw Gruszka if (sdata && ieee80211_sdata_running(sdata)) 2304153a5fc4SStanislaw Gruszka ieee80211_assign_chanctx(local, sdata); 23057df180f7SZhao, Gang } 2306fe5f2559SJohannes Berg 2307f2753ddbSJohannes Berg /* reconfigure hardware */ 2308f2753ddbSJohannes Berg ieee80211_hw_config(local, ~0); 2309f2753ddbSJohannes Berg 2310f2753ddbSJohannes Berg ieee80211_configure_filter(local); 2311f2753ddbSJohannes Berg 2312f2753ddbSJohannes Berg /* Finally also reconfigure all the BSS information */ 2313f2753ddbSJohannes Berg list_for_each_entry(sdata, &local->interfaces, list) { 2314ac8dd506SJohannes Berg u32 changed; 2315ac8dd506SJohannes Berg 23169607e6b6SJohannes Berg if (!ieee80211_sdata_running(sdata)) 2317f2753ddbSJohannes Berg continue; 2318ac8dd506SJohannes Berg 23191ea2c864SJohannes Berg ieee80211_assign_chanctx(local, sdata); 23201ea2c864SJohannes Berg 23211ea2c864SJohannes Berg switch (sdata->vif.type) { 23221ea2c864SJohannes Berg case NL80211_IFTYPE_AP_VLAN: 23231ea2c864SJohannes Berg case NL80211_IFTYPE_MONITOR: 23241ea2c864SJohannes Berg break; 23254926b51bSJohannes Berg case NL80211_IFTYPE_ADHOC: 23264926b51bSJohannes Berg if (sdata->vif.bss_conf.ibss_joined) 23274926b51bSJohannes Berg WARN_ON(drv_join_ibss(local, sdata)); 23284926b51bSJohannes Berg /* fall through */ 23291ea2c864SJohannes Berg default: 23301ea2c864SJohannes Berg ieee80211_reconfig_stations(sdata); 23311ea2c864SJohannes Berg /* fall through */ 23321ea2c864SJohannes Berg case NL80211_IFTYPE_AP: /* AP stations are handled later */ 23331ea2c864SJohannes Berg for (i = 0; i < IEEE80211_NUM_ACS; i++) 23341ea2c864SJohannes Berg drv_conf_tx(local, sdata, i, 23351ea2c864SJohannes Berg &sdata->tx_conf[i]); 23361ea2c864SJohannes Berg break; 23371ea2c864SJohannes Berg } 23381ea2c864SJohannes Berg 2339ac8dd506SJohannes Berg /* common change flags for all interface types */ 2340ac8dd506SJohannes Berg changed = BSS_CHANGED_ERP_CTS_PROT | 2341ac8dd506SJohannes Berg BSS_CHANGED_ERP_PREAMBLE | 2342ac8dd506SJohannes Berg BSS_CHANGED_ERP_SLOT | 2343ac8dd506SJohannes Berg BSS_CHANGED_HT | 2344ac8dd506SJohannes Berg BSS_CHANGED_BASIC_RATES | 2345ac8dd506SJohannes Berg BSS_CHANGED_BEACON_INT | 2346ac8dd506SJohannes Berg BSS_CHANGED_BSSID | 23474ced3f74SJohannes Berg BSS_CHANGED_CQM | 234855de47f6SEliad Peller BSS_CHANGED_QOS | 23491ea6f9c0SJohannes Berg BSS_CHANGED_IDLE | 2350dcbe73caSPradeep Kumar Chitrapu BSS_CHANGED_TXPOWER | 2351dcbe73caSPradeep Kumar Chitrapu BSS_CHANGED_MCAST_RATE; 2352ac8dd506SJohannes Berg 2353b5a33d52SSara Sharon if (sdata->vif.mu_mimo_owner) 235423a1f8d4SSara Sharon changed |= BSS_CHANGED_MU_GROUPS; 235523a1f8d4SSara Sharon 2356f2753ddbSJohannes Berg switch (sdata->vif.type) { 2357f2753ddbSJohannes Berg case NL80211_IFTYPE_STATION: 23580d392e93SEliad Peller changed |= BSS_CHANGED_ASSOC | 2359ab095877SEliad Peller BSS_CHANGED_ARP_FILTER | 2360ab095877SEliad Peller BSS_CHANGED_PS; 2361c65dd147SEmmanuel Grumbach 2362989c6505SAlexander Bondar /* Re-send beacon info report to the driver */ 2363989c6505SAlexander Bondar if (sdata->u.mgd.have_beacon) 2364989c6505SAlexander Bondar changed |= BSS_CHANGED_BEACON_INFO; 2365c65dd147SEmmanuel Grumbach 2366e38a017bSAvraham Stern if (sdata->vif.bss_conf.max_idle_period || 2367e38a017bSAvraham Stern sdata->vif.bss_conf.protected_keep_alive) 2368e38a017bSAvraham Stern changed |= BSS_CHANGED_KEEP_ALIVE; 2369e38a017bSAvraham Stern 23708d61ffa5SJohannes Berg sdata_lock(sdata); 2371ac8dd506SJohannes Berg ieee80211_bss_info_change_notify(sdata, changed); 23728d61ffa5SJohannes Berg sdata_unlock(sdata); 2373ac8dd506SJohannes Berg break; 23746e0bd6c3SRostislav Lisovy case NL80211_IFTYPE_OCB: 2375239281f8SRostislav Lisovy changed |= BSS_CHANGED_OCB; 2376239281f8SRostislav Lisovy ieee80211_bss_info_change_notify(sdata, changed); 23776e0bd6c3SRostislav Lisovy break; 2378f2753ddbSJohannes Berg case NL80211_IFTYPE_ADHOC: 2379ac8dd506SJohannes Berg changed |= BSS_CHANGED_IBSS; 2380ac8dd506SJohannes Berg /* fall through */ 2381f2753ddbSJohannes Berg case NL80211_IFTYPE_AP: 2382339afbf4SJohannes Berg changed |= BSS_CHANGED_SSID | BSS_CHANGED_P2P_PS; 2383e7979ac7SArik Nemtsov 2384bc847970SPradeep Kumar Chitrapu if (sdata->vif.bss_conf.ftm_responder == 1 && 2385bc847970SPradeep Kumar Chitrapu wiphy_ext_feature_isset(sdata->local->hw.wiphy, 2386bc847970SPradeep Kumar Chitrapu NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER)) 2387bc847970SPradeep Kumar Chitrapu changed |= BSS_CHANGED_FTM_RESPONDER; 2388bc847970SPradeep Kumar Chitrapu 23891041638fSJohannes Berg if (sdata->vif.type == NL80211_IFTYPE_AP) { 2390e7979ac7SArik Nemtsov changed |= BSS_CHANGED_AP_PROBE_RESP; 2391e7979ac7SArik Nemtsov 23921041638fSJohannes Berg if (rcu_access_pointer(sdata->u.ap.beacon)) 23931041638fSJohannes Berg drv_start_ap(local, sdata); 23941041638fSJohannes Berg } 23951041638fSJohannes Berg 23967827493bSArik Nemtsov /* fall through */ 2397f2753ddbSJohannes Berg case NL80211_IFTYPE_MESH_POINT: 23988da34932SJohannes Berg if (sdata->vif.bss_conf.enable_beacon) { 2399ac8dd506SJohannes Berg changed |= BSS_CHANGED_BEACON | 2400ac8dd506SJohannes Berg BSS_CHANGED_BEACON_ENABLED; 24012d0ddec5SJohannes Berg ieee80211_bss_info_change_notify(sdata, changed); 24028da34932SJohannes Berg } 2403f2753ddbSJohannes Berg break; 2404167e33f4SAyala Beker case NL80211_IFTYPE_NAN: 2405167e33f4SAyala Beker res = ieee80211_reconfig_nan(sdata); 2406167e33f4SAyala Beker if (res < 0) { 2407167e33f4SAyala Beker ieee80211_handle_reconfig_failure(local); 2408167e33f4SAyala Beker return res; 2409167e33f4SAyala Beker } 2410167e33f4SAyala Beker break; 2411f2753ddbSJohannes Berg case NL80211_IFTYPE_WDS: 2412f2753ddbSJohannes Berg case NL80211_IFTYPE_AP_VLAN: 2413f2753ddbSJohannes Berg case NL80211_IFTYPE_MONITOR: 241498104fdeSJohannes Berg case NL80211_IFTYPE_P2P_DEVICE: 2415b205786eSZhao, Gang /* nothing to do */ 2416f142c6b9SJohannes Berg break; 2417f2753ddbSJohannes Berg case NL80211_IFTYPE_UNSPECIFIED: 24182e161f78SJohannes Berg case NUM_NL80211_IFTYPES: 24192ca27bcfSJohannes Berg case NL80211_IFTYPE_P2P_CLIENT: 24202ca27bcfSJohannes Berg case NL80211_IFTYPE_P2P_GO: 2421f2753ddbSJohannes Berg WARN_ON(1); 2422f2753ddbSJohannes Berg break; 2423f2753ddbSJohannes Berg } 2424f2753ddbSJohannes Berg } 2425f2753ddbSJohannes Berg 24264a733ef1SJohannes Berg ieee80211_recalc_ps(local); 24278e1b23b9SEyal Shapira 24282a419056SJohannes Berg /* 24296e1b1b24SEliad Peller * The sta might be in psm against the ap (e.g. because 24306e1b1b24SEliad Peller * this was the state before a hw restart), so we 24316e1b1b24SEliad Peller * explicitly send a null packet in order to make sure 24326e1b1b24SEliad Peller * it'll sync against the ap (and get out of psm). 24336e1b1b24SEliad Peller */ 24346e1b1b24SEliad Peller if (!(local->hw.conf.flags & IEEE80211_CONF_PS)) { 24356e1b1b24SEliad Peller list_for_each_entry(sdata, &local->interfaces, list) { 24366e1b1b24SEliad Peller if (sdata->vif.type != NL80211_IFTYPE_STATION) 24376e1b1b24SEliad Peller continue; 243820f544eeSJohannes Berg if (!sdata->u.mgd.associated) 243920f544eeSJohannes Berg continue; 24406e1b1b24SEliad Peller 2441076cdcb1SJohannes Berg ieee80211_send_nullfunc(local, sdata, false); 24426e1b1b24SEliad Peller } 24436e1b1b24SEliad Peller } 24446e1b1b24SEliad Peller 24452e8d397eSArik Nemtsov /* APs are now beaconing, add back stations */ 24462e8d397eSArik Nemtsov mutex_lock(&local->sta_mtx); 24472e8d397eSArik Nemtsov list_for_each_entry(sta, &local->sta_list, list) { 24482e8d397eSArik Nemtsov enum ieee80211_sta_state state; 24492e8d397eSArik Nemtsov 24502e8d397eSArik Nemtsov if (!sta->uploaded) 24512e8d397eSArik Nemtsov continue; 24522e8d397eSArik Nemtsov 245319103a4bSmpubbise@codeaurora.org if (sta->sdata->vif.type != NL80211_IFTYPE_AP && 245419103a4bSmpubbise@codeaurora.org sta->sdata->vif.type != NL80211_IFTYPE_AP_VLAN) 24552e8d397eSArik Nemtsov continue; 24562e8d397eSArik Nemtsov 24572e8d397eSArik Nemtsov for (state = IEEE80211_STA_NOTEXIST; 24582e8d397eSArik Nemtsov state < sta->sta_state; state++) 24592e8d397eSArik Nemtsov WARN_ON(drv_sta_state(local, sta->sdata, sta, state, 24602e8d397eSArik Nemtsov state + 1)); 24612e8d397eSArik Nemtsov } 24622e8d397eSArik Nemtsov mutex_unlock(&local->sta_mtx); 24632e8d397eSArik Nemtsov 24647b21aea0SEyal Shapira /* add back keys */ 24657b21aea0SEyal Shapira list_for_each_entry(sdata, &local->interfaces, list) 2466624ff4b2SLior Cohen ieee80211_reenable_keys(sdata); 24677b21aea0SEyal Shapira 24680d440ea2SEliad Peller /* Reconfigure sched scan if it was interrupted by FW restart */ 24690d440ea2SEliad Peller mutex_lock(&local->mtx); 24700d440ea2SEliad Peller sched_scan_sdata = rcu_dereference_protected(local->sched_scan_sdata, 24710d440ea2SEliad Peller lockdep_is_held(&local->mtx)); 24720d440ea2SEliad Peller sched_scan_req = rcu_dereference_protected(local->sched_scan_req, 24730d440ea2SEliad Peller lockdep_is_held(&local->mtx)); 24740d440ea2SEliad Peller if (sched_scan_sdata && sched_scan_req) 24750d440ea2SEliad Peller /* 24760d440ea2SEliad Peller * Sched scan stopped, but we don't want to report it. Instead, 24770d440ea2SEliad Peller * we're trying to reschedule. However, if more than one scan 24780d440ea2SEliad Peller * plan was set, we cannot reschedule since we don't know which 24790d440ea2SEliad Peller * scan plan was currently running (and some scan plans may have 24800d440ea2SEliad Peller * already finished). 24810d440ea2SEliad Peller */ 24820d440ea2SEliad Peller if (sched_scan_req->n_scan_plans > 1 || 24830d440ea2SEliad Peller __ieee80211_request_sched_scan_start(sched_scan_sdata, 2484b9f628fcSEliad Peller sched_scan_req)) { 2485b9f628fcSEliad Peller RCU_INIT_POINTER(local->sched_scan_sdata, NULL); 2486b9f628fcSEliad Peller RCU_INIT_POINTER(local->sched_scan_req, NULL); 24870d440ea2SEliad Peller sched_scan_stopped = true; 2488b9f628fcSEliad Peller } 24890d440ea2SEliad Peller mutex_unlock(&local->mtx); 24900d440ea2SEliad Peller 24910d440ea2SEliad Peller if (sched_scan_stopped) 2492b34939b9SArend Van Spriel cfg80211_sched_scan_stopped_rtnl(local->hw.wiphy, 0); 24930d440ea2SEliad Peller 2494c6209488SEliad Peller wake_up: 2495470f4d61SEliad Peller 24963c3e21e7SJohannes Berg if (local->monitors == local->open_count && local->monitors > 0) 24973c3e21e7SJohannes Berg ieee80211_add_virtual_monitor(local); 24983c3e21e7SJohannes Berg 24996e1b1b24SEliad Peller /* 25002a419056SJohannes Berg * Clear the WLAN_STA_BLOCK_BA flag so new aggregation 25012a419056SJohannes Berg * sessions can be established after a resume. 25022a419056SJohannes Berg * 25032a419056SJohannes Berg * Also tear down aggregation sessions since reconfiguring 25042a419056SJohannes Berg * them in a hardware restart scenario is not easily done 25052a419056SJohannes Berg * right now, and the hardware will have lost information 25062a419056SJohannes Berg * about the sessions, but we and the AP still think they 25072a419056SJohannes Berg * are active. This is really a workaround though. 25082a419056SJohannes Berg */ 250930686bf7SJohannes Berg if (ieee80211_hw_check(hw, AMPDU_AGGREGATION)) { 25102a419056SJohannes Berg mutex_lock(&local->sta_mtx); 25112a419056SJohannes Berg 25122a419056SJohannes Berg list_for_each_entry(sta, &local->sta_list, list) { 251327392719SEliad Peller if (!local->resuming) 2514c82c4a80SJohannes Berg ieee80211_sta_tear_down_BA_sessions( 2515c82c4a80SJohannes Berg sta, AGG_STOP_LOCAL_REQUEST); 2516c2c98fdeSJohannes Berg clear_sta_flag(sta, WLAN_STA_BLOCK_BA); 251774e2bd1fSWey-Yi Guy } 25182a419056SJohannes Berg 25192a419056SJohannes Berg mutex_unlock(&local->sta_mtx); 252074e2bd1fSWey-Yi Guy } 252174e2bd1fSWey-Yi Guy 25222316380fSSara Sharon if (local->in_reconfig) { 25232316380fSSara Sharon local->in_reconfig = false; 25242316380fSSara Sharon barrier(); 25252316380fSSara Sharon 25262316380fSSara Sharon /* Restart deferred ROCs */ 25272316380fSSara Sharon mutex_lock(&local->mtx); 25282316380fSSara Sharon ieee80211_start_next_roc(local); 25292316380fSSara Sharon mutex_unlock(&local->mtx); 2530f8891461SNaftali Goldstein 2531f8891461SNaftali Goldstein /* Requeue all works */ 2532f8891461SNaftali Goldstein list_for_each_entry(sdata, &local->interfaces, list) 2533f8891461SNaftali Goldstein ieee80211_queue_work(&local->hw, &sdata->work); 25342316380fSSara Sharon } 25352316380fSSara Sharon 2536445ea4e8SJohannes Berg ieee80211_wake_queues_by_reason(hw, IEEE80211_MAX_QUEUE_MAP, 2537cca07b00SLuciano Coelho IEEE80211_QUEUE_STOP_REASON_SUSPEND, 2538cca07b00SLuciano Coelho false); 2539f2753ddbSJohannes Berg 25405bb644a0SJohannes Berg /* 25415bb644a0SJohannes Berg * If this is for hw restart things are still running. 25425bb644a0SJohannes Berg * We may want to change that later, however. 25435bb644a0SJohannes Berg */ 2544b0485e9fSEliad Peller if (local->open_count && (!suspended || reconfig_due_to_wowlan)) 2545cf2c92d8SEliad Peller drv_reconfig_complete(local, IEEE80211_RECONFIG_TYPE_RESTART); 25468f21b0adSJohannes Berg 2547b0485e9fSEliad Peller if (!suspended) 25485bb644a0SJohannes Berg return 0; 25495bb644a0SJohannes Berg 25505bb644a0SJohannes Berg #ifdef CONFIG_PM 2551ceb99fe0SJohannes Berg /* first set suspended false, then resuming */ 25525bb644a0SJohannes Berg local->suspended = false; 2553ceb99fe0SJohannes Berg mb(); 2554ceb99fe0SJohannes Berg local->resuming = false; 25555bb644a0SJohannes Berg 255674430f94SJohannes Berg ieee80211_flush_completed_scan(local, false); 25579120d94eSLuciano Coelho 25580f8b8245SEliad Peller if (local->open_count && !reconfig_due_to_wowlan) 2559cf2c92d8SEliad Peller drv_reconfig_complete(local, IEEE80211_RECONFIG_TYPE_SUSPEND); 2560cf2c92d8SEliad Peller 2561b8360ab8SJohannes Berg list_for_each_entry(sdata, &local->interfaces, list) { 2562b8360ab8SJohannes Berg if (!ieee80211_sdata_running(sdata)) 2563b8360ab8SJohannes Berg continue; 2564b8360ab8SJohannes Berg if (sdata->vif.type == NL80211_IFTYPE_STATION) 2565b8360ab8SJohannes Berg ieee80211_sta_restart(sdata); 2566b8360ab8SJohannes Berg } 2567b8360ab8SJohannes Berg 256826d59535SJohannes Berg mod_timer(&local->sta_cleanup, jiffies + 1); 25695bb644a0SJohannes Berg #else 25705bb644a0SJohannes Berg WARN_ON(1); 25715bb644a0SJohannes Berg #endif 2572d43c6b6eSDavid Spinadel 2573f2753ddbSJohannes Berg return 0; 2574f2753ddbSJohannes Berg } 257542935ecaSLuis R. Rodriguez 257695acac61SJohannes Berg void ieee80211_resume_disconnect(struct ieee80211_vif *vif) 257795acac61SJohannes Berg { 257895acac61SJohannes Berg struct ieee80211_sub_if_data *sdata; 257995acac61SJohannes Berg struct ieee80211_local *local; 258095acac61SJohannes Berg struct ieee80211_key *key; 258195acac61SJohannes Berg 258295acac61SJohannes Berg if (WARN_ON(!vif)) 258395acac61SJohannes Berg return; 258495acac61SJohannes Berg 258595acac61SJohannes Berg sdata = vif_to_sdata(vif); 258695acac61SJohannes Berg local = sdata->local; 258795acac61SJohannes Berg 258895acac61SJohannes Berg if (WARN_ON(!local->resuming)) 258995acac61SJohannes Berg return; 259095acac61SJohannes Berg 259195acac61SJohannes Berg if (WARN_ON(vif->type != NL80211_IFTYPE_STATION)) 259295acac61SJohannes Berg return; 259395acac61SJohannes Berg 259495acac61SJohannes Berg sdata->flags |= IEEE80211_SDATA_DISCONNECT_RESUME; 259595acac61SJohannes Berg 259695acac61SJohannes Berg mutex_lock(&local->key_mtx); 259795acac61SJohannes Berg list_for_each_entry(key, &sdata->key_list, list) 259895acac61SJohannes Berg key->flags |= KEY_FLAG_TAINTED; 259995acac61SJohannes Berg mutex_unlock(&local->key_mtx); 260095acac61SJohannes Berg } 260195acac61SJohannes Berg EXPORT_SYMBOL_GPL(ieee80211_resume_disconnect); 260295acac61SJohannes Berg 260304ecd257SJohannes Berg void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata) 26040f78231bSJohannes Berg { 260504ecd257SJohannes Berg struct ieee80211_local *local = sdata->local; 260604ecd257SJohannes Berg struct ieee80211_chanctx_conf *chanctx_conf; 260704ecd257SJohannes Berg struct ieee80211_chanctx *chanctx; 26080f78231bSJohannes Berg 260904ecd257SJohannes Berg mutex_lock(&local->chanctx_mtx); 26100f78231bSJohannes Berg 261104ecd257SJohannes Berg chanctx_conf = rcu_dereference_protected(sdata->vif.chanctx_conf, 261204ecd257SJohannes Berg lockdep_is_held(&local->chanctx_mtx)); 26130f78231bSJohannes Berg 2614c189a685SAndrei Otcheretianski /* 2615c189a685SAndrei Otcheretianski * This function can be called from a work, thus it may be possible 2616c189a685SAndrei Otcheretianski * that the chanctx_conf is removed (due to a disconnection, for 2617c189a685SAndrei Otcheretianski * example). 2618c189a685SAndrei Otcheretianski * So nothing should be done in such case. 2619c189a685SAndrei Otcheretianski */ 2620c189a685SAndrei Otcheretianski if (!chanctx_conf) 26215d8e4237SJohannes Berg goto unlock; 26220f78231bSJohannes Berg 262304ecd257SJohannes Berg chanctx = container_of(chanctx_conf, struct ieee80211_chanctx, conf); 262404ecd257SJohannes Berg ieee80211_recalc_smps_chanctx(local, chanctx); 26255d8e4237SJohannes Berg unlock: 262604ecd257SJohannes Berg mutex_unlock(&local->chanctx_mtx); 26270f78231bSJohannes Berg } 26288e664fb3SJohannes Berg 262921f659bfSEliad Peller void ieee80211_recalc_min_chandef(struct ieee80211_sub_if_data *sdata) 263021f659bfSEliad Peller { 263121f659bfSEliad Peller struct ieee80211_local *local = sdata->local; 263221f659bfSEliad Peller struct ieee80211_chanctx_conf *chanctx_conf; 263321f659bfSEliad Peller struct ieee80211_chanctx *chanctx; 263421f659bfSEliad Peller 263521f659bfSEliad Peller mutex_lock(&local->chanctx_mtx); 263621f659bfSEliad Peller 263721f659bfSEliad Peller chanctx_conf = rcu_dereference_protected(sdata->vif.chanctx_conf, 263821f659bfSEliad Peller lockdep_is_held(&local->chanctx_mtx)); 263921f659bfSEliad Peller 264021f659bfSEliad Peller if (WARN_ON_ONCE(!chanctx_conf)) 264121f659bfSEliad Peller goto unlock; 264221f659bfSEliad Peller 264321f659bfSEliad Peller chanctx = container_of(chanctx_conf, struct ieee80211_chanctx, conf); 264421f659bfSEliad Peller ieee80211_recalc_chanctx_min_def(local, chanctx); 264521f659bfSEliad Peller unlock: 264621f659bfSEliad Peller mutex_unlock(&local->chanctx_mtx); 264721f659bfSEliad Peller } 264821f659bfSEliad Peller 26498e664fb3SJohannes Berg size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset) 26508e664fb3SJohannes Berg { 26518e664fb3SJohannes Berg size_t pos = offset; 26528e664fb3SJohannes Berg 26538e664fb3SJohannes Berg while (pos < ielen && ies[pos] != WLAN_EID_VENDOR_SPECIFIC) 26548e664fb3SJohannes Berg pos += 2 + ies[pos + 1]; 26558e664fb3SJohannes Berg 26568e664fb3SJohannes Berg return pos; 26578e664fb3SJohannes Berg } 2658615f7b9bSMeenakshi Venkataraman 2659615f7b9bSMeenakshi Venkataraman static void _ieee80211_enable_rssi_reports(struct ieee80211_sub_if_data *sdata, 2660615f7b9bSMeenakshi Venkataraman int rssi_min_thold, 2661615f7b9bSMeenakshi Venkataraman int rssi_max_thold) 2662615f7b9bSMeenakshi Venkataraman { 2663615f7b9bSMeenakshi Venkataraman trace_api_enable_rssi_reports(sdata, rssi_min_thold, rssi_max_thold); 2664615f7b9bSMeenakshi Venkataraman 2665615f7b9bSMeenakshi Venkataraman if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION)) 2666615f7b9bSMeenakshi Venkataraman return; 2667615f7b9bSMeenakshi Venkataraman 2668615f7b9bSMeenakshi Venkataraman /* 2669615f7b9bSMeenakshi Venkataraman * Scale up threshold values before storing it, as the RSSI averaging 2670615f7b9bSMeenakshi Venkataraman * algorithm uses a scaled up value as well. Change this scaling 2671615f7b9bSMeenakshi Venkataraman * factor if the RSSI averaging algorithm changes. 2672615f7b9bSMeenakshi Venkataraman */ 2673615f7b9bSMeenakshi Venkataraman sdata->u.mgd.rssi_min_thold = rssi_min_thold*16; 2674615f7b9bSMeenakshi Venkataraman sdata->u.mgd.rssi_max_thold = rssi_max_thold*16; 2675615f7b9bSMeenakshi Venkataraman } 2676615f7b9bSMeenakshi Venkataraman 2677615f7b9bSMeenakshi Venkataraman void ieee80211_enable_rssi_reports(struct ieee80211_vif *vif, 2678615f7b9bSMeenakshi Venkataraman int rssi_min_thold, 2679615f7b9bSMeenakshi Venkataraman int rssi_max_thold) 2680615f7b9bSMeenakshi Venkataraman { 2681615f7b9bSMeenakshi Venkataraman struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 2682615f7b9bSMeenakshi Venkataraman 2683615f7b9bSMeenakshi Venkataraman WARN_ON(rssi_min_thold == rssi_max_thold || 2684615f7b9bSMeenakshi Venkataraman rssi_min_thold > rssi_max_thold); 2685615f7b9bSMeenakshi Venkataraman 2686615f7b9bSMeenakshi Venkataraman _ieee80211_enable_rssi_reports(sdata, rssi_min_thold, 2687615f7b9bSMeenakshi Venkataraman rssi_max_thold); 2688615f7b9bSMeenakshi Venkataraman } 2689615f7b9bSMeenakshi Venkataraman EXPORT_SYMBOL(ieee80211_enable_rssi_reports); 2690615f7b9bSMeenakshi Venkataraman 2691615f7b9bSMeenakshi Venkataraman void ieee80211_disable_rssi_reports(struct ieee80211_vif *vif) 2692615f7b9bSMeenakshi Venkataraman { 2693615f7b9bSMeenakshi Venkataraman struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 2694615f7b9bSMeenakshi Venkataraman 2695615f7b9bSMeenakshi Venkataraman _ieee80211_enable_rssi_reports(sdata, 0, 0); 2696615f7b9bSMeenakshi Venkataraman } 2697615f7b9bSMeenakshi Venkataraman EXPORT_SYMBOL(ieee80211_disable_rssi_reports); 2698768db343SArik Nemtsov 2699ef96a842SBen Greear u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap, 270042e7aa77SAlexander Simon u16 cap) 270142e7aa77SAlexander Simon { 270242e7aa77SAlexander Simon __le16 tmp; 270342e7aa77SAlexander Simon 270442e7aa77SAlexander Simon *pos++ = WLAN_EID_HT_CAPABILITY; 270542e7aa77SAlexander Simon *pos++ = sizeof(struct ieee80211_ht_cap); 270642e7aa77SAlexander Simon memset(pos, 0, sizeof(struct ieee80211_ht_cap)); 270742e7aa77SAlexander Simon 270842e7aa77SAlexander Simon /* capability flags */ 270942e7aa77SAlexander Simon tmp = cpu_to_le16(cap); 271042e7aa77SAlexander Simon memcpy(pos, &tmp, sizeof(u16)); 271142e7aa77SAlexander Simon pos += sizeof(u16); 271242e7aa77SAlexander Simon 271342e7aa77SAlexander Simon /* AMPDU parameters */ 2714ef96a842SBen Greear *pos++ = ht_cap->ampdu_factor | 2715ef96a842SBen Greear (ht_cap->ampdu_density << 271642e7aa77SAlexander Simon IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT); 271742e7aa77SAlexander Simon 271842e7aa77SAlexander Simon /* MCS set */ 2719ef96a842SBen Greear memcpy(pos, &ht_cap->mcs, sizeof(ht_cap->mcs)); 2720ef96a842SBen Greear pos += sizeof(ht_cap->mcs); 272142e7aa77SAlexander Simon 272242e7aa77SAlexander Simon /* extended capabilities */ 272342e7aa77SAlexander Simon pos += sizeof(__le16); 272442e7aa77SAlexander Simon 272542e7aa77SAlexander Simon /* BF capabilities */ 272642e7aa77SAlexander Simon pos += sizeof(__le32); 272742e7aa77SAlexander Simon 272842e7aa77SAlexander Simon /* antenna selection */ 272942e7aa77SAlexander Simon pos += sizeof(u8); 273042e7aa77SAlexander Simon 273142e7aa77SAlexander Simon return pos; 273242e7aa77SAlexander Simon } 273342e7aa77SAlexander Simon 2734ba0afa2fSMahesh Palivela u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap, 2735ba0afa2fSMahesh Palivela u32 cap) 2736ba0afa2fSMahesh Palivela { 2737ba0afa2fSMahesh Palivela __le32 tmp; 2738ba0afa2fSMahesh Palivela 2739ba0afa2fSMahesh Palivela *pos++ = WLAN_EID_VHT_CAPABILITY; 2740d4950281SMahesh Palivela *pos++ = sizeof(struct ieee80211_vht_cap); 2741d4950281SMahesh Palivela memset(pos, 0, sizeof(struct ieee80211_vht_cap)); 2742ba0afa2fSMahesh Palivela 2743ba0afa2fSMahesh Palivela /* capability flags */ 2744ba0afa2fSMahesh Palivela tmp = cpu_to_le32(cap); 2745ba0afa2fSMahesh Palivela memcpy(pos, &tmp, sizeof(u32)); 2746ba0afa2fSMahesh Palivela pos += sizeof(u32); 2747ba0afa2fSMahesh Palivela 2748ba0afa2fSMahesh Palivela /* VHT MCS set */ 2749ba0afa2fSMahesh Palivela memcpy(pos, &vht_cap->vht_mcs, sizeof(vht_cap->vht_mcs)); 2750ba0afa2fSMahesh Palivela pos += sizeof(vht_cap->vht_mcs); 2751ba0afa2fSMahesh Palivela 2752ba0afa2fSMahesh Palivela return pos; 2753ba0afa2fSMahesh Palivela } 2754ba0afa2fSMahesh Palivela 275560ad72daSSven Eckelmann u8 ieee80211_ie_len_he_cap(struct ieee80211_sub_if_data *sdata, u8 iftype) 275660ad72daSSven Eckelmann { 275760ad72daSSven Eckelmann const struct ieee80211_sta_he_cap *he_cap; 275860ad72daSSven Eckelmann struct ieee80211_supported_band *sband; 275960ad72daSSven Eckelmann u8 n; 276060ad72daSSven Eckelmann 276160ad72daSSven Eckelmann sband = ieee80211_get_sband(sdata); 276260ad72daSSven Eckelmann if (!sband) 276360ad72daSSven Eckelmann return 0; 276460ad72daSSven Eckelmann 276560ad72daSSven Eckelmann he_cap = ieee80211_get_he_iftype_cap(sband, iftype); 276660ad72daSSven Eckelmann if (!he_cap) 276760ad72daSSven Eckelmann return 0; 276860ad72daSSven Eckelmann 276960ad72daSSven Eckelmann n = ieee80211_he_mcs_nss_size(&he_cap->he_cap_elem); 277060ad72daSSven Eckelmann return 2 + 1 + 277160ad72daSSven Eckelmann sizeof(he_cap->he_cap_elem) + n + 277260ad72daSSven Eckelmann ieee80211_he_ppe_size(he_cap->ppe_thres[0], 277360ad72daSSven Eckelmann he_cap->he_cap_elem.phy_cap_info); 277460ad72daSSven Eckelmann } 277560ad72daSSven Eckelmann 277641cbb0f5SLuca Coelho u8 *ieee80211_ie_build_he_cap(u8 *pos, 277741cbb0f5SLuca Coelho const struct ieee80211_sta_he_cap *he_cap, 277841cbb0f5SLuca Coelho u8 *end) 277941cbb0f5SLuca Coelho { 278041cbb0f5SLuca Coelho u8 n; 278141cbb0f5SLuca Coelho u8 ie_len; 278241cbb0f5SLuca Coelho u8 *orig_pos = pos; 278341cbb0f5SLuca Coelho 278441cbb0f5SLuca Coelho /* Make sure we have place for the IE */ 278541cbb0f5SLuca Coelho /* 278641cbb0f5SLuca Coelho * TODO: the 1 added is because this temporarily is under the EXTENSION 278741cbb0f5SLuca Coelho * IE. Get rid of it when it moves. 278841cbb0f5SLuca Coelho */ 278941cbb0f5SLuca Coelho if (!he_cap) 279041cbb0f5SLuca Coelho return orig_pos; 279141cbb0f5SLuca Coelho 279241cbb0f5SLuca Coelho n = ieee80211_he_mcs_nss_size(&he_cap->he_cap_elem); 279341cbb0f5SLuca Coelho ie_len = 2 + 1 + 279441cbb0f5SLuca Coelho sizeof(he_cap->he_cap_elem) + n + 279541cbb0f5SLuca Coelho ieee80211_he_ppe_size(he_cap->ppe_thres[0], 279641cbb0f5SLuca Coelho he_cap->he_cap_elem.phy_cap_info); 279741cbb0f5SLuca Coelho 279841cbb0f5SLuca Coelho if ((end - pos) < ie_len) 279941cbb0f5SLuca Coelho return orig_pos; 280041cbb0f5SLuca Coelho 280141cbb0f5SLuca Coelho *pos++ = WLAN_EID_EXTENSION; 280241cbb0f5SLuca Coelho pos++; /* We'll set the size later below */ 280341cbb0f5SLuca Coelho *pos++ = WLAN_EID_EXT_HE_CAPABILITY; 280441cbb0f5SLuca Coelho 280541cbb0f5SLuca Coelho /* Fixed data */ 280641cbb0f5SLuca Coelho memcpy(pos, &he_cap->he_cap_elem, sizeof(he_cap->he_cap_elem)); 280741cbb0f5SLuca Coelho pos += sizeof(he_cap->he_cap_elem); 280841cbb0f5SLuca Coelho 280941cbb0f5SLuca Coelho memcpy(pos, &he_cap->he_mcs_nss_supp, n); 281041cbb0f5SLuca Coelho pos += n; 281141cbb0f5SLuca Coelho 281241cbb0f5SLuca Coelho /* Check if PPE Threshold should be present */ 281341cbb0f5SLuca Coelho if ((he_cap->he_cap_elem.phy_cap_info[6] & 281441cbb0f5SLuca Coelho IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) == 0) 281541cbb0f5SLuca Coelho goto end; 281641cbb0f5SLuca Coelho 281741cbb0f5SLuca Coelho /* 281841cbb0f5SLuca Coelho * Calculate how many PPET16/PPET8 pairs are to come. Algorithm: 281941cbb0f5SLuca Coelho * (NSS_M1 + 1) x (num of 1 bits in RU_INDEX_BITMASK) 282041cbb0f5SLuca Coelho */ 282141cbb0f5SLuca Coelho n = hweight8(he_cap->ppe_thres[0] & 282241cbb0f5SLuca Coelho IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK); 282341cbb0f5SLuca Coelho n *= (1 + ((he_cap->ppe_thres[0] & IEEE80211_PPE_THRES_NSS_MASK) >> 282441cbb0f5SLuca Coelho IEEE80211_PPE_THRES_NSS_POS)); 282541cbb0f5SLuca Coelho 282641cbb0f5SLuca Coelho /* 282741cbb0f5SLuca Coelho * Each pair is 6 bits, and we need to add the 7 "header" bits to the 282841cbb0f5SLuca Coelho * total size. 282941cbb0f5SLuca Coelho */ 283041cbb0f5SLuca Coelho n = (n * IEEE80211_PPE_THRES_INFO_PPET_SIZE * 2) + 7; 283141cbb0f5SLuca Coelho n = DIV_ROUND_UP(n, 8); 283241cbb0f5SLuca Coelho 283341cbb0f5SLuca Coelho /* Copy PPE Thresholds */ 283441cbb0f5SLuca Coelho memcpy(pos, &he_cap->ppe_thres, n); 283541cbb0f5SLuca Coelho pos += n; 283641cbb0f5SLuca Coelho 283741cbb0f5SLuca Coelho end: 283841cbb0f5SLuca Coelho orig_pos[1] = (pos - orig_pos) - 2; 283941cbb0f5SLuca Coelho return pos; 284041cbb0f5SLuca Coelho } 284141cbb0f5SLuca Coelho 2842074d46d1SJohannes Berg u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap, 28434bf88530SJohannes Berg const struct cfg80211_chan_def *chandef, 284457f255f5SArik Nemtsov u16 prot_mode, bool rifs_mode) 284542e7aa77SAlexander Simon { 2846074d46d1SJohannes Berg struct ieee80211_ht_operation *ht_oper; 284742e7aa77SAlexander Simon /* Build HT Information */ 2848074d46d1SJohannes Berg *pos++ = WLAN_EID_HT_OPERATION; 2849074d46d1SJohannes Berg *pos++ = sizeof(struct ieee80211_ht_operation); 2850074d46d1SJohannes Berg ht_oper = (struct ieee80211_ht_operation *)pos; 28514bf88530SJohannes Berg ht_oper->primary_chan = ieee80211_frequency_to_channel( 28524bf88530SJohannes Berg chandef->chan->center_freq); 28534bf88530SJohannes Berg switch (chandef->width) { 28544bf88530SJohannes Berg case NL80211_CHAN_WIDTH_160: 28554bf88530SJohannes Berg case NL80211_CHAN_WIDTH_80P80: 28564bf88530SJohannes Berg case NL80211_CHAN_WIDTH_80: 28574bf88530SJohannes Berg case NL80211_CHAN_WIDTH_40: 28584bf88530SJohannes Berg if (chandef->center_freq1 > chandef->chan->center_freq) 28594bf88530SJohannes Berg ht_oper->ht_param = IEEE80211_HT_PARAM_CHA_SEC_ABOVE; 28604bf88530SJohannes Berg else 2861074d46d1SJohannes Berg ht_oper->ht_param = IEEE80211_HT_PARAM_CHA_SEC_BELOW; 286242e7aa77SAlexander Simon break; 286342e7aa77SAlexander Simon default: 2864074d46d1SJohannes Berg ht_oper->ht_param = IEEE80211_HT_PARAM_CHA_SEC_NONE; 286542e7aa77SAlexander Simon break; 286642e7aa77SAlexander Simon } 2867aee286c2SThomas Pedersen if (ht_cap->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40 && 28684bf88530SJohannes Berg chandef->width != NL80211_CHAN_WIDTH_20_NOHT && 28694bf88530SJohannes Berg chandef->width != NL80211_CHAN_WIDTH_20) 2870074d46d1SJohannes Berg ht_oper->ht_param |= IEEE80211_HT_PARAM_CHAN_WIDTH_ANY; 2871ff3cc5f4SSimon Wunderlich 287257f255f5SArik Nemtsov if (rifs_mode) 287357f255f5SArik Nemtsov ht_oper->ht_param |= IEEE80211_HT_PARAM_RIFS_MODE; 287457f255f5SArik Nemtsov 2875431e3154SAshok Nagarajan ht_oper->operation_mode = cpu_to_le16(prot_mode); 2876074d46d1SJohannes Berg ht_oper->stbc_param = 0x0000; 287742e7aa77SAlexander Simon 287842e7aa77SAlexander Simon /* It seems that Basic MCS set and Supported MCS set 287942e7aa77SAlexander Simon are identical for the first 10 bytes */ 2880074d46d1SJohannes Berg memset(&ht_oper->basic_set, 0, 16); 2881074d46d1SJohannes Berg memcpy(&ht_oper->basic_set, &ht_cap->mcs, 10); 288242e7aa77SAlexander Simon 2883074d46d1SJohannes Berg return pos + sizeof(struct ieee80211_ht_operation); 288442e7aa77SAlexander Simon } 288542e7aa77SAlexander Simon 288675d627d5SSimon Wunderlich void ieee80211_ie_build_wide_bw_cs(u8 *pos, 288775d627d5SSimon Wunderlich const struct cfg80211_chan_def *chandef) 288875d627d5SSimon Wunderlich { 288975d627d5SSimon Wunderlich *pos++ = WLAN_EID_WIDE_BW_CHANNEL_SWITCH; /* EID */ 289075d627d5SSimon Wunderlich *pos++ = 3; /* IE length */ 289175d627d5SSimon Wunderlich /* New channel width */ 289275d627d5SSimon Wunderlich switch (chandef->width) { 289375d627d5SSimon Wunderlich case NL80211_CHAN_WIDTH_80: 289475d627d5SSimon Wunderlich *pos++ = IEEE80211_VHT_CHANWIDTH_80MHZ; 289575d627d5SSimon Wunderlich break; 289675d627d5SSimon Wunderlich case NL80211_CHAN_WIDTH_160: 289775d627d5SSimon Wunderlich *pos++ = IEEE80211_VHT_CHANWIDTH_160MHZ; 289875d627d5SSimon Wunderlich break; 289975d627d5SSimon Wunderlich case NL80211_CHAN_WIDTH_80P80: 290075d627d5SSimon Wunderlich *pos++ = IEEE80211_VHT_CHANWIDTH_80P80MHZ; 290175d627d5SSimon Wunderlich break; 290275d627d5SSimon Wunderlich default: 290375d627d5SSimon Wunderlich *pos++ = IEEE80211_VHT_CHANWIDTH_USE_HT; 290475d627d5SSimon Wunderlich } 290575d627d5SSimon Wunderlich 290675d627d5SSimon Wunderlich /* new center frequency segment 0 */ 290775d627d5SSimon Wunderlich *pos++ = ieee80211_frequency_to_channel(chandef->center_freq1); 290875d627d5SSimon Wunderlich /* new center frequency segment 1 */ 290975d627d5SSimon Wunderlich if (chandef->center_freq2) 291075d627d5SSimon Wunderlich *pos++ = ieee80211_frequency_to_channel(chandef->center_freq2); 291175d627d5SSimon Wunderlich else 291275d627d5SSimon Wunderlich *pos++ = 0; 291375d627d5SSimon Wunderlich } 291475d627d5SSimon Wunderlich 2915fb28ec0cSArik Nemtsov u8 *ieee80211_ie_build_vht_oper(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap, 2916fb28ec0cSArik Nemtsov const struct cfg80211_chan_def *chandef) 2917fb28ec0cSArik Nemtsov { 2918fb28ec0cSArik Nemtsov struct ieee80211_vht_operation *vht_oper; 2919fb28ec0cSArik Nemtsov 2920fb28ec0cSArik Nemtsov *pos++ = WLAN_EID_VHT_OPERATION; 2921fb28ec0cSArik Nemtsov *pos++ = sizeof(struct ieee80211_vht_operation); 2922fb28ec0cSArik Nemtsov vht_oper = (struct ieee80211_vht_operation *)pos; 29232fb51c35SJohannes Berg vht_oper->center_freq_seg0_idx = ieee80211_frequency_to_channel( 2924fb28ec0cSArik Nemtsov chandef->center_freq1); 2925fb28ec0cSArik Nemtsov if (chandef->center_freq2) 29262fb51c35SJohannes Berg vht_oper->center_freq_seg1_idx = 2927fb28ec0cSArik Nemtsov ieee80211_frequency_to_channel(chandef->center_freq2); 2928f020ae40SChun-Yeow Yeoh else 29292fb51c35SJohannes Berg vht_oper->center_freq_seg1_idx = 0x00; 2930fb28ec0cSArik Nemtsov 2931fb28ec0cSArik Nemtsov switch (chandef->width) { 2932fb28ec0cSArik Nemtsov case NL80211_CHAN_WIDTH_160: 293323665aafSJouni Malinen /* 293423665aafSJouni Malinen * Convert 160 MHz channel width to new style as interop 293523665aafSJouni Malinen * workaround. 293623665aafSJouni Malinen */ 293723665aafSJouni Malinen vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_80MHZ; 29382fb51c35SJohannes Berg vht_oper->center_freq_seg1_idx = vht_oper->center_freq_seg0_idx; 293923665aafSJouni Malinen if (chandef->chan->center_freq < chandef->center_freq1) 29402fb51c35SJohannes Berg vht_oper->center_freq_seg0_idx -= 8; 294123665aafSJouni Malinen else 29422fb51c35SJohannes Berg vht_oper->center_freq_seg0_idx += 8; 2943fb28ec0cSArik Nemtsov break; 2944fb28ec0cSArik Nemtsov case NL80211_CHAN_WIDTH_80P80: 294523665aafSJouni Malinen /* 294623665aafSJouni Malinen * Convert 80+80 MHz channel width to new style as interop 294723665aafSJouni Malinen * workaround. 294823665aafSJouni Malinen */ 294923665aafSJouni Malinen vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_80MHZ; 2950fb28ec0cSArik Nemtsov break; 2951fb28ec0cSArik Nemtsov case NL80211_CHAN_WIDTH_80: 2952fb28ec0cSArik Nemtsov vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_80MHZ; 2953fb28ec0cSArik Nemtsov break; 2954fb28ec0cSArik Nemtsov default: 2955fb28ec0cSArik Nemtsov vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_USE_HT; 2956fb28ec0cSArik Nemtsov break; 2957fb28ec0cSArik Nemtsov } 2958fb28ec0cSArik Nemtsov 2959fb28ec0cSArik Nemtsov /* don't require special VHT peer rates */ 2960fb28ec0cSArik Nemtsov vht_oper->basic_mcs_set = cpu_to_le16(0xffff); 2961fb28ec0cSArik Nemtsov 2962fb28ec0cSArik Nemtsov return pos + sizeof(struct ieee80211_vht_operation); 2963fb28ec0cSArik Nemtsov } 2964fb28ec0cSArik Nemtsov 296560ad72daSSven Eckelmann u8 *ieee80211_ie_build_he_oper(u8 *pos) 296660ad72daSSven Eckelmann { 296760ad72daSSven Eckelmann struct ieee80211_he_operation *he_oper; 296860ad72daSSven Eckelmann u32 he_oper_params; 296960ad72daSSven Eckelmann 297060ad72daSSven Eckelmann *pos++ = WLAN_EID_EXTENSION; 297160ad72daSSven Eckelmann *pos++ = 1 + sizeof(struct ieee80211_he_operation); 297260ad72daSSven Eckelmann *pos++ = WLAN_EID_EXT_HE_OPERATION; 297360ad72daSSven Eckelmann 297460ad72daSSven Eckelmann he_oper_params = 0; 297560ad72daSSven Eckelmann he_oper_params |= u32_encode_bits(1023, /* disabled */ 297660ad72daSSven Eckelmann IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK); 297760ad72daSSven Eckelmann he_oper_params |= u32_encode_bits(1, 297860ad72daSSven Eckelmann IEEE80211_HE_OPERATION_ER_SU_DISABLE); 297960ad72daSSven Eckelmann he_oper_params |= u32_encode_bits(1, 298060ad72daSSven Eckelmann IEEE80211_HE_OPERATION_BSS_COLOR_DISABLED); 298160ad72daSSven Eckelmann 298260ad72daSSven Eckelmann he_oper = (struct ieee80211_he_operation *)pos; 298360ad72daSSven Eckelmann he_oper->he_oper_params = cpu_to_le32(he_oper_params); 298460ad72daSSven Eckelmann 298560ad72daSSven Eckelmann /* don't require special HE peer rates */ 298660ad72daSSven Eckelmann he_oper->he_mcs_nss_set = cpu_to_le16(0xffff); 298760ad72daSSven Eckelmann 298860ad72daSSven Eckelmann /* TODO add VHT operational and 6GHz operational subelement? */ 298960ad72daSSven Eckelmann 299060ad72daSSven Eckelmann return pos + sizeof(struct ieee80211_vht_operation); 299160ad72daSSven Eckelmann } 299260ad72daSSven Eckelmann 29938ac3c704SJohannes Berg bool ieee80211_chandef_ht_oper(const struct ieee80211_ht_operation *ht_oper, 29944bf88530SJohannes Berg struct cfg80211_chan_def *chandef) 299542e7aa77SAlexander Simon { 299642e7aa77SAlexander Simon enum nl80211_channel_type channel_type; 299742e7aa77SAlexander Simon 29988ac3c704SJohannes Berg if (!ht_oper) 29998ac3c704SJohannes Berg return false; 300042e7aa77SAlexander Simon 3001074d46d1SJohannes Berg switch (ht_oper->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET) { 300242e7aa77SAlexander Simon case IEEE80211_HT_PARAM_CHA_SEC_NONE: 300342e7aa77SAlexander Simon channel_type = NL80211_CHAN_HT20; 300442e7aa77SAlexander Simon break; 300542e7aa77SAlexander Simon case IEEE80211_HT_PARAM_CHA_SEC_ABOVE: 300642e7aa77SAlexander Simon channel_type = NL80211_CHAN_HT40PLUS; 300742e7aa77SAlexander Simon break; 300842e7aa77SAlexander Simon case IEEE80211_HT_PARAM_CHA_SEC_BELOW: 300942e7aa77SAlexander Simon channel_type = NL80211_CHAN_HT40MINUS; 301042e7aa77SAlexander Simon break; 301142e7aa77SAlexander Simon default: 301242e7aa77SAlexander Simon channel_type = NL80211_CHAN_NO_HT; 30138ac3c704SJohannes Berg return false; 301442e7aa77SAlexander Simon } 301542e7aa77SAlexander Simon 30168ac3c704SJohannes Berg cfg80211_chandef_create(chandef, chandef->chan, channel_type); 30178ac3c704SJohannes Berg return true; 301842e7aa77SAlexander Simon } 301942e7aa77SAlexander Simon 30207eb26df2SJohannes Berg bool ieee80211_chandef_vht_oper(struct ieee80211_hw *hw, 30217eb26df2SJohannes Berg const struct ieee80211_vht_operation *oper, 30227eb26df2SJohannes Berg const struct ieee80211_ht_operation *htop, 3023abcff6efSJanusz.Dziedzic@tieto.com struct cfg80211_chan_def *chandef) 3024abcff6efSJanusz.Dziedzic@tieto.com { 30258ac3c704SJohannes Berg struct cfg80211_chan_def new = *chandef; 30267eb26df2SJohannes Berg int cf0, cf1; 30277eb26df2SJohannes Berg int ccfs0, ccfs1, ccfs2; 30287eb26df2SJohannes Berg int ccf0, ccf1; 302933181ea7SShay Bar u32 vht_cap; 303033181ea7SShay Bar bool support_80_80 = false; 303133181ea7SShay Bar bool support_160 = false; 3032abcff6efSJanusz.Dziedzic@tieto.com 30337eb26df2SJohannes Berg if (!oper || !htop) 30348ac3c704SJohannes Berg return false; 30358ac3c704SJohannes Berg 303633181ea7SShay Bar vht_cap = hw->wiphy->bands[chandef->chan->band]->vht_cap.cap; 303733181ea7SShay Bar support_160 = (vht_cap & (IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK | 303833181ea7SShay Bar IEEE80211_VHT_CAP_EXT_NSS_BW_MASK)); 303933181ea7SShay Bar support_80_80 = ((vht_cap & 304033181ea7SShay Bar IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ) || 304133181ea7SShay Bar (vht_cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ && 304233181ea7SShay Bar vht_cap & IEEE80211_VHT_CAP_EXT_NSS_BW_MASK) || 304333181ea7SShay Bar ((vht_cap & IEEE80211_VHT_CAP_EXT_NSS_BW_MASK) >> 304433181ea7SShay Bar IEEE80211_VHT_CAP_EXT_NSS_BW_SHIFT > 1)); 30457eb26df2SJohannes Berg ccfs0 = oper->center_freq_seg0_idx; 30467eb26df2SJohannes Berg ccfs1 = oper->center_freq_seg1_idx; 30477eb26df2SJohannes Berg ccfs2 = (le16_to_cpu(htop->operation_mode) & 30487eb26df2SJohannes Berg IEEE80211_HT_OP_MODE_CCFS2_MASK) 30497eb26df2SJohannes Berg >> IEEE80211_HT_OP_MODE_CCFS2_SHIFT; 30507eb26df2SJohannes Berg 30517eb26df2SJohannes Berg /* when parsing (and we know how to) CCFS1 and CCFS2 are equivalent */ 30527eb26df2SJohannes Berg ccf0 = ccfs0; 30537eb26df2SJohannes Berg ccf1 = ccfs1; 30547eb26df2SJohannes Berg if (!ccfs1 && ieee80211_hw_check(hw, SUPPORTS_VHT_EXT_NSS_BW)) 30557eb26df2SJohannes Berg ccf1 = ccfs2; 30567eb26df2SJohannes Berg 30577eb26df2SJohannes Berg cf0 = ieee80211_channel_to_frequency(ccf0, chandef->chan->band); 30587eb26df2SJohannes Berg cf1 = ieee80211_channel_to_frequency(ccf1, chandef->chan->band); 3059abcff6efSJanusz.Dziedzic@tieto.com 3060abcff6efSJanusz.Dziedzic@tieto.com switch (oper->chan_width) { 3061abcff6efSJanusz.Dziedzic@tieto.com case IEEE80211_VHT_CHANWIDTH_USE_HT: 30627eb26df2SJohannes Berg /* just use HT information directly */ 3063abcff6efSJanusz.Dziedzic@tieto.com break; 3064abcff6efSJanusz.Dziedzic@tieto.com case IEEE80211_VHT_CHANWIDTH_80MHZ: 30658ac3c704SJohannes Berg new.width = NL80211_CHAN_WIDTH_80; 30667eb26df2SJohannes Berg new.center_freq1 = cf0; 306723665aafSJouni Malinen /* If needed, adjust based on the newer interop workaround. */ 30687eb26df2SJohannes Berg if (ccf1) { 306923665aafSJouni Malinen unsigned int diff; 307023665aafSJouni Malinen 30717eb26df2SJohannes Berg diff = abs(ccf1 - ccf0); 307233181ea7SShay Bar if ((diff == 8) && support_160) { 307323665aafSJouni Malinen new.width = NL80211_CHAN_WIDTH_160; 30747eb26df2SJohannes Berg new.center_freq1 = cf1; 307533181ea7SShay Bar } else if ((diff > 8) && support_80_80) { 307623665aafSJouni Malinen new.width = NL80211_CHAN_WIDTH_80P80; 30777eb26df2SJohannes Berg new.center_freq2 = cf1; 307823665aafSJouni Malinen } 307923665aafSJouni Malinen } 3080abcff6efSJanusz.Dziedzic@tieto.com break; 3081abcff6efSJanusz.Dziedzic@tieto.com case IEEE80211_VHT_CHANWIDTH_160MHZ: 30827eb26df2SJohannes Berg /* deprecated encoding */ 30838ac3c704SJohannes Berg new.width = NL80211_CHAN_WIDTH_160; 30847eb26df2SJohannes Berg new.center_freq1 = cf0; 3085abcff6efSJanusz.Dziedzic@tieto.com break; 3086abcff6efSJanusz.Dziedzic@tieto.com case IEEE80211_VHT_CHANWIDTH_80P80MHZ: 30877eb26df2SJohannes Berg /* deprecated encoding */ 30888ac3c704SJohannes Berg new.width = NL80211_CHAN_WIDTH_80P80; 30897eb26df2SJohannes Berg new.center_freq1 = cf0; 30907eb26df2SJohannes Berg new.center_freq2 = cf1; 3091abcff6efSJanusz.Dziedzic@tieto.com break; 3092abcff6efSJanusz.Dziedzic@tieto.com default: 30938ac3c704SJohannes Berg return false; 3094abcff6efSJanusz.Dziedzic@tieto.com } 3095abcff6efSJanusz.Dziedzic@tieto.com 30968ac3c704SJohannes Berg if (!cfg80211_chandef_valid(&new)) 30978ac3c704SJohannes Berg return false; 30988ac3c704SJohannes Berg 30998ac3c704SJohannes Berg *chandef = new; 31008ac3c704SJohannes Berg return true; 3101abcff6efSJanusz.Dziedzic@tieto.com } 3102abcff6efSJanusz.Dziedzic@tieto.com 31032103dec1SSimon Wunderlich int ieee80211_parse_bitrates(struct cfg80211_chan_def *chandef, 31042103dec1SSimon Wunderlich const struct ieee80211_supported_band *sband, 31052103dec1SSimon Wunderlich const u8 *srates, int srates_len, u32 *rates) 31062103dec1SSimon Wunderlich { 31072103dec1SSimon Wunderlich u32 rate_flags = ieee80211_chandef_rate_flags(chandef); 31082103dec1SSimon Wunderlich int shift = ieee80211_chandef_get_shift(chandef); 31092103dec1SSimon Wunderlich struct ieee80211_rate *br; 31102103dec1SSimon Wunderlich int brate, rate, i, j, count = 0; 31112103dec1SSimon Wunderlich 31122103dec1SSimon Wunderlich *rates = 0; 31132103dec1SSimon Wunderlich 31142103dec1SSimon Wunderlich for (i = 0; i < srates_len; i++) { 31152103dec1SSimon Wunderlich rate = srates[i] & 0x7f; 31162103dec1SSimon Wunderlich 31172103dec1SSimon Wunderlich for (j = 0; j < sband->n_bitrates; j++) { 31182103dec1SSimon Wunderlich br = &sband->bitrates[j]; 31192103dec1SSimon Wunderlich if ((rate_flags & br->flags) != rate_flags) 31202103dec1SSimon Wunderlich continue; 31212103dec1SSimon Wunderlich 31222103dec1SSimon Wunderlich brate = DIV_ROUND_UP(br->bitrate, (1 << shift) * 5); 31232103dec1SSimon Wunderlich if (brate == rate) { 31242103dec1SSimon Wunderlich *rates |= BIT(j); 31252103dec1SSimon Wunderlich count++; 31262103dec1SSimon Wunderlich break; 31272103dec1SSimon Wunderlich } 31282103dec1SSimon Wunderlich } 31292103dec1SSimon Wunderlich } 31302103dec1SSimon Wunderlich return count; 31312103dec1SSimon Wunderlich } 31322103dec1SSimon Wunderlich 3133fc8a7321SJohannes Berg int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata, 31346b77863bSJohannes Berg struct sk_buff *skb, bool need_basic, 313557fbcce3SJohannes Berg enum nl80211_band band) 3136768db343SArik Nemtsov { 3137768db343SArik Nemtsov struct ieee80211_local *local = sdata->local; 3138768db343SArik Nemtsov struct ieee80211_supported_band *sband; 31392103dec1SSimon Wunderlich int rate, shift; 3140768db343SArik Nemtsov u8 i, rates, *pos; 3141fc8a7321SJohannes Berg u32 basic_rates = sdata->vif.bss_conf.basic_rates; 31422103dec1SSimon Wunderlich u32 rate_flags; 3143768db343SArik Nemtsov 31442103dec1SSimon Wunderlich shift = ieee80211_vif_get_shift(&sdata->vif); 31452103dec1SSimon Wunderlich rate_flags = ieee80211_chandef_rate_flags(&sdata->vif.bss_conf.chandef); 31466b77863bSJohannes Berg sband = local->hw.wiphy->bands[band]; 31472103dec1SSimon Wunderlich rates = 0; 31482103dec1SSimon Wunderlich for (i = 0; i < sband->n_bitrates; i++) { 31492103dec1SSimon Wunderlich if ((rate_flags & sband->bitrates[i].flags) != rate_flags) 31502103dec1SSimon Wunderlich continue; 31512103dec1SSimon Wunderlich rates++; 31522103dec1SSimon Wunderlich } 3153768db343SArik Nemtsov if (rates > 8) 3154768db343SArik Nemtsov rates = 8; 3155768db343SArik Nemtsov 3156768db343SArik Nemtsov if (skb_tailroom(skb) < rates + 2) 3157768db343SArik Nemtsov return -ENOMEM; 3158768db343SArik Nemtsov 3159768db343SArik Nemtsov pos = skb_put(skb, rates + 2); 3160768db343SArik Nemtsov *pos++ = WLAN_EID_SUPP_RATES; 3161768db343SArik Nemtsov *pos++ = rates; 3162768db343SArik Nemtsov for (i = 0; i < rates; i++) { 3163657c3e0cSAshok Nagarajan u8 basic = 0; 31642103dec1SSimon Wunderlich if ((rate_flags & sband->bitrates[i].flags) != rate_flags) 31652103dec1SSimon Wunderlich continue; 31662103dec1SSimon Wunderlich 3167657c3e0cSAshok Nagarajan if (need_basic && basic_rates & BIT(i)) 3168657c3e0cSAshok Nagarajan basic = 0x80; 31692103dec1SSimon Wunderlich rate = DIV_ROUND_UP(sband->bitrates[i].bitrate, 31702103dec1SSimon Wunderlich 5 * (1 << shift)); 31712103dec1SSimon Wunderlich *pos++ = basic | (u8) rate; 3172768db343SArik Nemtsov } 3173768db343SArik Nemtsov 3174768db343SArik Nemtsov return 0; 3175768db343SArik Nemtsov } 3176768db343SArik Nemtsov 3177fc8a7321SJohannes Berg int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata, 31786b77863bSJohannes Berg struct sk_buff *skb, bool need_basic, 317957fbcce3SJohannes Berg enum nl80211_band band) 3180768db343SArik Nemtsov { 3181768db343SArik Nemtsov struct ieee80211_local *local = sdata->local; 3182768db343SArik Nemtsov struct ieee80211_supported_band *sband; 3183cc63ec76SChun-Yeow Yeoh int rate, shift; 3184768db343SArik Nemtsov u8 i, exrates, *pos; 3185fc8a7321SJohannes Berg u32 basic_rates = sdata->vif.bss_conf.basic_rates; 31862103dec1SSimon Wunderlich u32 rate_flags; 31872103dec1SSimon Wunderlich 31882103dec1SSimon Wunderlich rate_flags = ieee80211_chandef_rate_flags(&sdata->vif.bss_conf.chandef); 31892103dec1SSimon Wunderlich shift = ieee80211_vif_get_shift(&sdata->vif); 3190768db343SArik Nemtsov 31916b77863bSJohannes Berg sband = local->hw.wiphy->bands[band]; 31922103dec1SSimon Wunderlich exrates = 0; 31932103dec1SSimon Wunderlich for (i = 0; i < sband->n_bitrates; i++) { 31942103dec1SSimon Wunderlich if ((rate_flags & sband->bitrates[i].flags) != rate_flags) 31952103dec1SSimon Wunderlich continue; 31962103dec1SSimon Wunderlich exrates++; 31972103dec1SSimon Wunderlich } 31982103dec1SSimon Wunderlich 3199768db343SArik Nemtsov if (exrates > 8) 3200768db343SArik Nemtsov exrates -= 8; 3201768db343SArik Nemtsov else 3202768db343SArik Nemtsov exrates = 0; 3203768db343SArik Nemtsov 3204768db343SArik Nemtsov if (skb_tailroom(skb) < exrates + 2) 3205768db343SArik Nemtsov return -ENOMEM; 3206768db343SArik Nemtsov 3207768db343SArik Nemtsov if (exrates) { 3208768db343SArik Nemtsov pos = skb_put(skb, exrates + 2); 3209768db343SArik Nemtsov *pos++ = WLAN_EID_EXT_SUPP_RATES; 3210768db343SArik Nemtsov *pos++ = exrates; 3211768db343SArik Nemtsov for (i = 8; i < sband->n_bitrates; i++) { 3212657c3e0cSAshok Nagarajan u8 basic = 0; 32132103dec1SSimon Wunderlich if ((rate_flags & sband->bitrates[i].flags) 32142103dec1SSimon Wunderlich != rate_flags) 32152103dec1SSimon Wunderlich continue; 3216657c3e0cSAshok Nagarajan if (need_basic && basic_rates & BIT(i)) 3217657c3e0cSAshok Nagarajan basic = 0x80; 32182103dec1SSimon Wunderlich rate = DIV_ROUND_UP(sband->bitrates[i].bitrate, 32192103dec1SSimon Wunderlich 5 * (1 << shift)); 32202103dec1SSimon Wunderlich *pos++ = basic | (u8) rate; 3221768db343SArik Nemtsov } 3222768db343SArik Nemtsov } 3223768db343SArik Nemtsov return 0; 3224768db343SArik Nemtsov } 32251dae27f8SWey-Yi Guy 32261dae27f8SWey-Yi Guy int ieee80211_ave_rssi(struct ieee80211_vif *vif) 32271dae27f8SWey-Yi Guy { 32281dae27f8SWey-Yi Guy struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 32291dae27f8SWey-Yi Guy struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 32301dae27f8SWey-Yi Guy 3231be6bcabcSWey-Yi Guy if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) { 3232be6bcabcSWey-Yi Guy /* non-managed type inferfaces */ 3233be6bcabcSWey-Yi Guy return 0; 3234be6bcabcSWey-Yi Guy } 3235338c17aeSJohannes Berg return -ewma_beacon_signal_read(&ifmgd->ave_beacon_signal); 32361dae27f8SWey-Yi Guy } 32370d8a0a17SWey-Yi Guy EXPORT_SYMBOL_GPL(ieee80211_ave_rssi); 323804ecd257SJohannes Berg 323904ecd257SJohannes Berg u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs) 324004ecd257SJohannes Berg { 324104ecd257SJohannes Berg if (!mcs) 324204ecd257SJohannes Berg return 1; 324304ecd257SJohannes Berg 324404ecd257SJohannes Berg /* TODO: consider rx_highest */ 324504ecd257SJohannes Berg 324604ecd257SJohannes Berg if (mcs->rx_mask[3]) 324704ecd257SJohannes Berg return 4; 324804ecd257SJohannes Berg if (mcs->rx_mask[2]) 324904ecd257SJohannes Berg return 3; 325004ecd257SJohannes Berg if (mcs->rx_mask[1]) 325104ecd257SJohannes Berg return 2; 325204ecd257SJohannes Berg return 1; 325304ecd257SJohannes Berg } 3254f4bda337SThomas Pedersen 3255f4bda337SThomas Pedersen /** 3256f4bda337SThomas Pedersen * ieee80211_calculate_rx_timestamp - calculate timestamp in frame 3257f4bda337SThomas Pedersen * @local: mac80211 hw info struct 3258f4bda337SThomas Pedersen * @status: RX status 3259f4bda337SThomas Pedersen * @mpdu_len: total MPDU length (including FCS) 3260f4bda337SThomas Pedersen * @mpdu_offset: offset into MPDU to calculate timestamp at 3261f4bda337SThomas Pedersen * 3262f4bda337SThomas Pedersen * This function calculates the RX timestamp at the given MPDU offset, taking 3263f4bda337SThomas Pedersen * into account what the RX timestamp was. An offset of 0 will just normalize 3264f4bda337SThomas Pedersen * the timestamp to TSF at beginning of MPDU reception. 3265f4bda337SThomas Pedersen */ 3266f4bda337SThomas Pedersen u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local, 3267f4bda337SThomas Pedersen struct ieee80211_rx_status *status, 3268f4bda337SThomas Pedersen unsigned int mpdu_len, 3269f4bda337SThomas Pedersen unsigned int mpdu_offset) 3270f4bda337SThomas Pedersen { 3271f4bda337SThomas Pedersen u64 ts = status->mactime; 3272f4bda337SThomas Pedersen struct rate_info ri; 3273f4bda337SThomas Pedersen u16 rate; 3274f4bda337SThomas Pedersen 3275f4bda337SThomas Pedersen if (WARN_ON(!ieee80211_have_rx_timestamp(status))) 3276f4bda337SThomas Pedersen return 0; 3277f4bda337SThomas Pedersen 3278f4bda337SThomas Pedersen memset(&ri, 0, sizeof(ri)); 3279f4bda337SThomas Pedersen 328035f4962cSJohannes Berg ri.bw = status->bw; 328135f4962cSJohannes Berg 3282f4bda337SThomas Pedersen /* Fill cfg80211 rate info */ 3283da6a4352SJohannes Berg switch (status->encoding) { 3284da6a4352SJohannes Berg case RX_ENC_HT: 3285f4bda337SThomas Pedersen ri.mcs = status->rate_idx; 3286f4bda337SThomas Pedersen ri.flags |= RATE_INFO_FLAGS_MCS; 32877fdd69c5SJohannes Berg if (status->enc_flags & RX_ENC_FLAG_SHORT_GI) 3288f4bda337SThomas Pedersen ri.flags |= RATE_INFO_FLAGS_SHORT_GI; 3289da6a4352SJohannes Berg break; 3290da6a4352SJohannes Berg case RX_ENC_VHT: 32915614618eSJohannes Berg ri.flags |= RATE_INFO_FLAGS_VHT_MCS; 32925614618eSJohannes Berg ri.mcs = status->rate_idx; 32938613c948SJohannes Berg ri.nss = status->nss; 32947fdd69c5SJohannes Berg if (status->enc_flags & RX_ENC_FLAG_SHORT_GI) 32955614618eSJohannes Berg ri.flags |= RATE_INFO_FLAGS_SHORT_GI; 3296da6a4352SJohannes Berg break; 3297da6a4352SJohannes Berg default: 3298da6a4352SJohannes Berg WARN_ON(1); 3299da6a4352SJohannes Berg /* fall through */ 3300da6a4352SJohannes Berg case RX_ENC_LEGACY: { 3301f4bda337SThomas Pedersen struct ieee80211_supported_band *sband; 33022103dec1SSimon Wunderlich int shift = 0; 33032103dec1SSimon Wunderlich int bitrate; 33042103dec1SSimon Wunderlich 3305da6a4352SJohannes Berg switch (status->bw) { 3306da6a4352SJohannes Berg case RATE_INFO_BW_10: 33072103dec1SSimon Wunderlich shift = 1; 3308da6a4352SJohannes Berg break; 3309da6a4352SJohannes Berg case RATE_INFO_BW_5: 33102103dec1SSimon Wunderlich shift = 2; 3311da6a4352SJohannes Berg break; 3312b51f3beeSJohannes Berg } 3313f4bda337SThomas Pedersen 3314f4bda337SThomas Pedersen sband = local->hw.wiphy->bands[status->band]; 33152103dec1SSimon Wunderlich bitrate = sband->bitrates[status->rate_idx].bitrate; 33162103dec1SSimon Wunderlich ri.legacy = DIV_ROUND_UP(bitrate, (1 << shift)); 3317f4a0f0c5SJohannes Berg 3318f4a0f0c5SJohannes Berg if (status->flag & RX_FLAG_MACTIME_PLCP_START) { 3319f4a0f0c5SJohannes Berg /* TODO: handle HT/VHT preambles */ 332057fbcce3SJohannes Berg if (status->band == NL80211_BAND_5GHZ) { 3321f4a0f0c5SJohannes Berg ts += 20 << shift; 3322f4a0f0c5SJohannes Berg mpdu_offset += 2; 33237fdd69c5SJohannes Berg } else if (status->enc_flags & RX_ENC_FLAG_SHORTPRE) { 3324f4a0f0c5SJohannes Berg ts += 96; 3325f4a0f0c5SJohannes Berg } else { 3326f4a0f0c5SJohannes Berg ts += 192; 3327f4a0f0c5SJohannes Berg } 3328f4a0f0c5SJohannes Berg } 3329da6a4352SJohannes Berg break; 3330da6a4352SJohannes Berg } 3331f4bda337SThomas Pedersen } 3332f4bda337SThomas Pedersen 3333f4bda337SThomas Pedersen rate = cfg80211_calculate_bitrate(&ri); 3334d86aa4f8SJohannes Berg if (WARN_ONCE(!rate, 3335f980ebc0SSara Sharon "Invalid bitrate: flags=0x%llx, idx=%d, vht_nss=%d\n", 3336f980ebc0SSara Sharon (unsigned long long)status->flag, status->rate_idx, 33378613c948SJohannes Berg status->nss)) 3338d86aa4f8SJohannes Berg return 0; 3339f4bda337SThomas Pedersen 3340f4bda337SThomas Pedersen /* rewind from end of MPDU */ 3341f4bda337SThomas Pedersen if (status->flag & RX_FLAG_MACTIME_END) 3342f4bda337SThomas Pedersen ts -= mpdu_len * 8 * 10 / rate; 3343f4bda337SThomas Pedersen 3344f4bda337SThomas Pedersen ts += mpdu_offset * 8 * 10 / rate; 3345f4bda337SThomas Pedersen 3346f4bda337SThomas Pedersen return ts; 3347f4bda337SThomas Pedersen } 3348164eb02dSSimon Wunderlich 3349164eb02dSSimon Wunderlich void ieee80211_dfs_cac_cancel(struct ieee80211_local *local) 3350164eb02dSSimon Wunderlich { 3351164eb02dSSimon Wunderlich struct ieee80211_sub_if_data *sdata; 3352d2859df5SJanusz Dziedzic struct cfg80211_chan_def chandef; 3353164eb02dSSimon Wunderlich 33544a199068SJohannes Berg /* for interface list, to avoid linking iflist_mtx and chanctx_mtx */ 33554a199068SJohannes Berg ASSERT_RTNL(); 33564a199068SJohannes Berg 335734a3740dSJohannes Berg mutex_lock(&local->mtx); 3358164eb02dSSimon Wunderlich list_for_each_entry(sdata, &local->interfaces, list) { 335934a3740dSJohannes Berg /* it might be waiting for the local->mtx, but then 336034a3740dSJohannes Berg * by the time it gets it, sdata->wdev.cac_started 336134a3740dSJohannes Berg * will no longer be true 336234a3740dSJohannes Berg */ 336334a3740dSJohannes Berg cancel_delayed_work(&sdata->dfs_cac_timer_work); 3364164eb02dSSimon Wunderlich 3365164eb02dSSimon Wunderlich if (sdata->wdev.cac_started) { 3366d2859df5SJanusz Dziedzic chandef = sdata->vif.bss_conf.chandef; 3367164eb02dSSimon Wunderlich ieee80211_vif_release_channel(sdata); 3368164eb02dSSimon Wunderlich cfg80211_cac_event(sdata->dev, 3369d2859df5SJanusz Dziedzic &chandef, 3370164eb02dSSimon Wunderlich NL80211_RADAR_CAC_ABORTED, 3371164eb02dSSimon Wunderlich GFP_KERNEL); 3372164eb02dSSimon Wunderlich } 3373164eb02dSSimon Wunderlich } 337434a3740dSJohannes Berg mutex_unlock(&local->mtx); 3375164eb02dSSimon Wunderlich } 3376164eb02dSSimon Wunderlich 3377164eb02dSSimon Wunderlich void ieee80211_dfs_radar_detected_work(struct work_struct *work) 3378164eb02dSSimon Wunderlich { 3379164eb02dSSimon Wunderlich struct ieee80211_local *local = 3380164eb02dSSimon Wunderlich container_of(work, struct ieee80211_local, radar_detected_work); 338184a3d1c9SJanusz Dziedzic struct cfg80211_chan_def chandef = local->hw.conf.chandef; 3382486cf4c0SMichal Kazior struct ieee80211_chanctx *ctx; 3383486cf4c0SMichal Kazior int num_chanctx = 0; 3384486cf4c0SMichal Kazior 3385486cf4c0SMichal Kazior mutex_lock(&local->chanctx_mtx); 3386486cf4c0SMichal Kazior list_for_each_entry(ctx, &local->chanctx_list, list) { 3387486cf4c0SMichal Kazior if (ctx->replace_state == IEEE80211_CHANCTX_REPLACES_OTHER) 3388486cf4c0SMichal Kazior continue; 3389486cf4c0SMichal Kazior 3390486cf4c0SMichal Kazior num_chanctx++; 3391486cf4c0SMichal Kazior chandef = ctx->conf.def; 3392486cf4c0SMichal Kazior } 3393486cf4c0SMichal Kazior mutex_unlock(&local->chanctx_mtx); 3394164eb02dSSimon Wunderlich 33954a199068SJohannes Berg rtnl_lock(); 3396164eb02dSSimon Wunderlich ieee80211_dfs_cac_cancel(local); 33974a199068SJohannes Berg rtnl_unlock(); 3398164eb02dSSimon Wunderlich 3399486cf4c0SMichal Kazior if (num_chanctx > 1) 3400486cf4c0SMichal Kazior /* XXX: multi-channel is not supported yet */ 3401164eb02dSSimon Wunderlich WARN_ON(1); 340284a3d1c9SJanusz Dziedzic else 3403164eb02dSSimon Wunderlich cfg80211_radar_event(local->hw.wiphy, &chandef, GFP_KERNEL); 3404164eb02dSSimon Wunderlich } 3405164eb02dSSimon Wunderlich 3406164eb02dSSimon Wunderlich void ieee80211_radar_detected(struct ieee80211_hw *hw) 3407164eb02dSSimon Wunderlich { 3408164eb02dSSimon Wunderlich struct ieee80211_local *local = hw_to_local(hw); 3409164eb02dSSimon Wunderlich 3410164eb02dSSimon Wunderlich trace_api_radar_detected(local); 3411164eb02dSSimon Wunderlich 34124a199068SJohannes Berg schedule_work(&local->radar_detected_work); 3413164eb02dSSimon Wunderlich } 3414164eb02dSSimon Wunderlich EXPORT_SYMBOL(ieee80211_radar_detected); 3415e6b7cde4SSimon Wunderlich 3416e6b7cde4SSimon Wunderlich u32 ieee80211_chandef_downgrade(struct cfg80211_chan_def *c) 3417e6b7cde4SSimon Wunderlich { 3418e6b7cde4SSimon Wunderlich u32 ret; 3419e6b7cde4SSimon Wunderlich int tmp; 3420e6b7cde4SSimon Wunderlich 3421e6b7cde4SSimon Wunderlich switch (c->width) { 3422e6b7cde4SSimon Wunderlich case NL80211_CHAN_WIDTH_20: 3423e6b7cde4SSimon Wunderlich c->width = NL80211_CHAN_WIDTH_20_NOHT; 3424e6b7cde4SSimon Wunderlich ret = IEEE80211_STA_DISABLE_HT | IEEE80211_STA_DISABLE_VHT; 3425e6b7cde4SSimon Wunderlich break; 3426e6b7cde4SSimon Wunderlich case NL80211_CHAN_WIDTH_40: 3427e6b7cde4SSimon Wunderlich c->width = NL80211_CHAN_WIDTH_20; 3428e6b7cde4SSimon Wunderlich c->center_freq1 = c->chan->center_freq; 3429e6b7cde4SSimon Wunderlich ret = IEEE80211_STA_DISABLE_40MHZ | 3430e6b7cde4SSimon Wunderlich IEEE80211_STA_DISABLE_VHT; 3431e6b7cde4SSimon Wunderlich break; 3432e6b7cde4SSimon Wunderlich case NL80211_CHAN_WIDTH_80: 3433e6b7cde4SSimon Wunderlich tmp = (30 + c->chan->center_freq - c->center_freq1)/20; 3434e6b7cde4SSimon Wunderlich /* n_P40 */ 3435e6b7cde4SSimon Wunderlich tmp /= 2; 3436e6b7cde4SSimon Wunderlich /* freq_P40 */ 3437e6b7cde4SSimon Wunderlich c->center_freq1 = c->center_freq1 - 20 + 40 * tmp; 3438e6b7cde4SSimon Wunderlich c->width = NL80211_CHAN_WIDTH_40; 3439e6b7cde4SSimon Wunderlich ret = IEEE80211_STA_DISABLE_VHT; 3440e6b7cde4SSimon Wunderlich break; 3441e6b7cde4SSimon Wunderlich case NL80211_CHAN_WIDTH_80P80: 3442e6b7cde4SSimon Wunderlich c->center_freq2 = 0; 3443e6b7cde4SSimon Wunderlich c->width = NL80211_CHAN_WIDTH_80; 3444e6b7cde4SSimon Wunderlich ret = IEEE80211_STA_DISABLE_80P80MHZ | 3445e6b7cde4SSimon Wunderlich IEEE80211_STA_DISABLE_160MHZ; 3446e6b7cde4SSimon Wunderlich break; 3447e6b7cde4SSimon Wunderlich case NL80211_CHAN_WIDTH_160: 3448e6b7cde4SSimon Wunderlich /* n_P20 */ 3449e6b7cde4SSimon Wunderlich tmp = (70 + c->chan->center_freq - c->center_freq1)/20; 3450e6b7cde4SSimon Wunderlich /* n_P80 */ 3451e6b7cde4SSimon Wunderlich tmp /= 4; 3452e6b7cde4SSimon Wunderlich c->center_freq1 = c->center_freq1 - 40 + 80 * tmp; 3453e6b7cde4SSimon Wunderlich c->width = NL80211_CHAN_WIDTH_80; 3454e6b7cde4SSimon Wunderlich ret = IEEE80211_STA_DISABLE_80P80MHZ | 3455e6b7cde4SSimon Wunderlich IEEE80211_STA_DISABLE_160MHZ; 3456e6b7cde4SSimon Wunderlich break; 3457e6b7cde4SSimon Wunderlich default: 3458e6b7cde4SSimon Wunderlich case NL80211_CHAN_WIDTH_20_NOHT: 3459e6b7cde4SSimon Wunderlich WARN_ON_ONCE(1); 3460e6b7cde4SSimon Wunderlich c->width = NL80211_CHAN_WIDTH_20_NOHT; 3461e6b7cde4SSimon Wunderlich ret = IEEE80211_STA_DISABLE_HT | IEEE80211_STA_DISABLE_VHT; 3462e6b7cde4SSimon Wunderlich break; 3463e6b7cde4SSimon Wunderlich case NL80211_CHAN_WIDTH_5: 3464e6b7cde4SSimon Wunderlich case NL80211_CHAN_WIDTH_10: 3465e6b7cde4SSimon Wunderlich WARN_ON_ONCE(1); 3466e6b7cde4SSimon Wunderlich /* keep c->width */ 3467e6b7cde4SSimon Wunderlich ret = IEEE80211_STA_DISABLE_HT | IEEE80211_STA_DISABLE_VHT; 3468e6b7cde4SSimon Wunderlich break; 3469e6b7cde4SSimon Wunderlich } 3470e6b7cde4SSimon Wunderlich 3471e6b7cde4SSimon Wunderlich WARN_ON_ONCE(!cfg80211_chandef_valid(c)); 3472e6b7cde4SSimon Wunderlich 3473e6b7cde4SSimon Wunderlich return ret; 3474e6b7cde4SSimon Wunderlich } 3475687da132SEmmanuel Grumbach 3476687da132SEmmanuel Grumbach /* 3477687da132SEmmanuel Grumbach * Returns true if smps_mode_new is strictly more restrictive than 3478687da132SEmmanuel Grumbach * smps_mode_old. 3479687da132SEmmanuel Grumbach */ 3480687da132SEmmanuel Grumbach bool ieee80211_smps_is_restrictive(enum ieee80211_smps_mode smps_mode_old, 3481687da132SEmmanuel Grumbach enum ieee80211_smps_mode smps_mode_new) 3482687da132SEmmanuel Grumbach { 3483687da132SEmmanuel Grumbach if (WARN_ON_ONCE(smps_mode_old == IEEE80211_SMPS_AUTOMATIC || 3484687da132SEmmanuel Grumbach smps_mode_new == IEEE80211_SMPS_AUTOMATIC)) 3485687da132SEmmanuel Grumbach return false; 3486687da132SEmmanuel Grumbach 3487687da132SEmmanuel Grumbach switch (smps_mode_old) { 3488687da132SEmmanuel Grumbach case IEEE80211_SMPS_STATIC: 3489687da132SEmmanuel Grumbach return false; 3490687da132SEmmanuel Grumbach case IEEE80211_SMPS_DYNAMIC: 3491687da132SEmmanuel Grumbach return smps_mode_new == IEEE80211_SMPS_STATIC; 3492687da132SEmmanuel Grumbach case IEEE80211_SMPS_OFF: 3493687da132SEmmanuel Grumbach return smps_mode_new != IEEE80211_SMPS_OFF; 3494687da132SEmmanuel Grumbach default: 3495687da132SEmmanuel Grumbach WARN_ON(1); 3496687da132SEmmanuel Grumbach } 3497687da132SEmmanuel Grumbach 3498687da132SEmmanuel Grumbach return false; 3499687da132SEmmanuel Grumbach } 3500c6da674aSChun-Yeow Yeoh 3501c6da674aSChun-Yeow Yeoh int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata, 3502c6da674aSChun-Yeow Yeoh struct cfg80211_csa_settings *csa_settings) 3503c6da674aSChun-Yeow Yeoh { 3504c6da674aSChun-Yeow Yeoh struct sk_buff *skb; 3505c6da674aSChun-Yeow Yeoh struct ieee80211_mgmt *mgmt; 3506c6da674aSChun-Yeow Yeoh struct ieee80211_local *local = sdata->local; 3507c6da674aSChun-Yeow Yeoh int freq; 35084c121fd6SJohannes Berg int hdr_len = offsetofend(struct ieee80211_mgmt, 35094c121fd6SJohannes Berg u.action.u.chan_switch); 3510c6da674aSChun-Yeow Yeoh u8 *pos; 3511c6da674aSChun-Yeow Yeoh 3512c6da674aSChun-Yeow Yeoh if (sdata->vif.type != NL80211_IFTYPE_ADHOC && 3513c6da674aSChun-Yeow Yeoh sdata->vif.type != NL80211_IFTYPE_MESH_POINT) 3514c6da674aSChun-Yeow Yeoh return -EOPNOTSUPP; 3515c6da674aSChun-Yeow Yeoh 3516c6da674aSChun-Yeow Yeoh skb = dev_alloc_skb(local->tx_headroom + hdr_len + 3517c6da674aSChun-Yeow Yeoh 5 + /* channel switch announcement element */ 3518c6da674aSChun-Yeow Yeoh 3 + /* secondary channel offset element */ 351975d627d5SSimon Wunderlich 5 + /* wide bandwidth channel switch announcement */ 3520c6da674aSChun-Yeow Yeoh 8); /* mesh channel switch parameters element */ 3521c6da674aSChun-Yeow Yeoh if (!skb) 3522c6da674aSChun-Yeow Yeoh return -ENOMEM; 3523c6da674aSChun-Yeow Yeoh 3524c6da674aSChun-Yeow Yeoh skb_reserve(skb, local->tx_headroom); 3525b080db58SJohannes Berg mgmt = skb_put_zero(skb, hdr_len); 3526c6da674aSChun-Yeow Yeoh mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | 3527c6da674aSChun-Yeow Yeoh IEEE80211_STYPE_ACTION); 3528c6da674aSChun-Yeow Yeoh 3529c6da674aSChun-Yeow Yeoh eth_broadcast_addr(mgmt->da); 3530c6da674aSChun-Yeow Yeoh memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN); 3531c6da674aSChun-Yeow Yeoh if (ieee80211_vif_is_mesh(&sdata->vif)) { 3532c6da674aSChun-Yeow Yeoh memcpy(mgmt->bssid, sdata->vif.addr, ETH_ALEN); 3533c6da674aSChun-Yeow Yeoh } else { 3534c6da674aSChun-Yeow Yeoh struct ieee80211_if_ibss *ifibss = &sdata->u.ibss; 3535c6da674aSChun-Yeow Yeoh memcpy(mgmt->bssid, ifibss->bssid, ETH_ALEN); 3536c6da674aSChun-Yeow Yeoh } 3537c6da674aSChun-Yeow Yeoh mgmt->u.action.category = WLAN_CATEGORY_SPECTRUM_MGMT; 3538c6da674aSChun-Yeow Yeoh mgmt->u.action.u.chan_switch.action_code = WLAN_ACTION_SPCT_CHL_SWITCH; 3539c6da674aSChun-Yeow Yeoh pos = skb_put(skb, 5); 3540c6da674aSChun-Yeow Yeoh *pos++ = WLAN_EID_CHANNEL_SWITCH; /* EID */ 3541c6da674aSChun-Yeow Yeoh *pos++ = 3; /* IE length */ 3542c6da674aSChun-Yeow Yeoh *pos++ = csa_settings->block_tx ? 1 : 0; /* CSA mode */ 3543c6da674aSChun-Yeow Yeoh freq = csa_settings->chandef.chan->center_freq; 3544c6da674aSChun-Yeow Yeoh *pos++ = ieee80211_frequency_to_channel(freq); /* channel */ 3545c6da674aSChun-Yeow Yeoh *pos++ = csa_settings->count; /* count */ 3546c6da674aSChun-Yeow Yeoh 3547c6da674aSChun-Yeow Yeoh if (csa_settings->chandef.width == NL80211_CHAN_WIDTH_40) { 3548c6da674aSChun-Yeow Yeoh enum nl80211_channel_type ch_type; 3549c6da674aSChun-Yeow Yeoh 3550c6da674aSChun-Yeow Yeoh skb_put(skb, 3); 3551c6da674aSChun-Yeow Yeoh *pos++ = WLAN_EID_SECONDARY_CHANNEL_OFFSET; /* EID */ 3552c6da674aSChun-Yeow Yeoh *pos++ = 1; /* IE length */ 3553c6da674aSChun-Yeow Yeoh ch_type = cfg80211_get_chandef_type(&csa_settings->chandef); 3554c6da674aSChun-Yeow Yeoh if (ch_type == NL80211_CHAN_HT40PLUS) 3555c6da674aSChun-Yeow Yeoh *pos++ = IEEE80211_HT_PARAM_CHA_SEC_ABOVE; 3556c6da674aSChun-Yeow Yeoh else 3557c6da674aSChun-Yeow Yeoh *pos++ = IEEE80211_HT_PARAM_CHA_SEC_BELOW; 3558c6da674aSChun-Yeow Yeoh } 3559c6da674aSChun-Yeow Yeoh 3560c6da674aSChun-Yeow Yeoh if (ieee80211_vif_is_mesh(&sdata->vif)) { 3561c6da674aSChun-Yeow Yeoh struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 3562c6da674aSChun-Yeow Yeoh 3563c6da674aSChun-Yeow Yeoh skb_put(skb, 8); 3564c6da674aSChun-Yeow Yeoh *pos++ = WLAN_EID_CHAN_SWITCH_PARAM; /* EID */ 3565c6da674aSChun-Yeow Yeoh *pos++ = 6; /* IE length */ 3566c6da674aSChun-Yeow Yeoh *pos++ = sdata->u.mesh.mshcfg.dot11MeshTTL; /* Mesh TTL */ 3567c6da674aSChun-Yeow Yeoh *pos = 0x00; /* Mesh Flag: Tx Restrict, Initiator, Reason */ 3568c6da674aSChun-Yeow Yeoh *pos |= WLAN_EID_CHAN_SWITCH_PARAM_INITIATOR; 3569c6da674aSChun-Yeow Yeoh *pos++ |= csa_settings->block_tx ? 3570c6da674aSChun-Yeow Yeoh WLAN_EID_CHAN_SWITCH_PARAM_TX_RESTRICT : 0x00; 3571c6da674aSChun-Yeow Yeoh put_unaligned_le16(WLAN_REASON_MESH_CHAN, pos); /* Reason Cd */ 3572c6da674aSChun-Yeow Yeoh pos += 2; 3573ca91dc97SChun-Yeow Yeoh put_unaligned_le16(ifmsh->pre_value, pos);/* Precedence Value */ 3574c6da674aSChun-Yeow Yeoh pos += 2; 3575c6da674aSChun-Yeow Yeoh } 3576c6da674aSChun-Yeow Yeoh 357775d627d5SSimon Wunderlich if (csa_settings->chandef.width == NL80211_CHAN_WIDTH_80 || 357875d627d5SSimon Wunderlich csa_settings->chandef.width == NL80211_CHAN_WIDTH_80P80 || 357975d627d5SSimon Wunderlich csa_settings->chandef.width == NL80211_CHAN_WIDTH_160) { 358075d627d5SSimon Wunderlich skb_put(skb, 5); 358175d627d5SSimon Wunderlich ieee80211_ie_build_wide_bw_cs(pos, &csa_settings->chandef); 358275d627d5SSimon Wunderlich } 358375d627d5SSimon Wunderlich 3584c6da674aSChun-Yeow Yeoh ieee80211_tx_skb(sdata, skb); 3585c6da674aSChun-Yeow Yeoh return 0; 3586c6da674aSChun-Yeow Yeoh } 35872475b1ccSMax Stepanov 35882475b1ccSMax Stepanov bool ieee80211_cs_valid(const struct ieee80211_cipher_scheme *cs) 35892475b1ccSMax Stepanov { 35902475b1ccSMax Stepanov return !(cs == NULL || cs->cipher == 0 || 35912475b1ccSMax Stepanov cs->hdr_len < cs->pn_len + cs->pn_off || 35922475b1ccSMax Stepanov cs->hdr_len <= cs->key_idx_off || 35932475b1ccSMax Stepanov cs->key_idx_shift > 7 || 35942475b1ccSMax Stepanov cs->key_idx_mask == 0); 35952475b1ccSMax Stepanov } 35962475b1ccSMax Stepanov 35972475b1ccSMax Stepanov bool ieee80211_cs_list_valid(const struct ieee80211_cipher_scheme *cs, int n) 35982475b1ccSMax Stepanov { 35992475b1ccSMax Stepanov int i; 36002475b1ccSMax Stepanov 36012475b1ccSMax Stepanov /* Ensure we have enough iftype bitmap space for all iftype values */ 36022475b1ccSMax Stepanov WARN_ON((NUM_NL80211_IFTYPES / 8 + 1) > sizeof(cs[0].iftype)); 36032475b1ccSMax Stepanov 36042475b1ccSMax Stepanov for (i = 0; i < n; i++) 36052475b1ccSMax Stepanov if (!ieee80211_cs_valid(&cs[i])) 36062475b1ccSMax Stepanov return false; 36072475b1ccSMax Stepanov 36082475b1ccSMax Stepanov return true; 36092475b1ccSMax Stepanov } 36102475b1ccSMax Stepanov 36112475b1ccSMax Stepanov const struct ieee80211_cipher_scheme * 36122475b1ccSMax Stepanov ieee80211_cs_get(struct ieee80211_local *local, u32 cipher, 36132475b1ccSMax Stepanov enum nl80211_iftype iftype) 36142475b1ccSMax Stepanov { 36152475b1ccSMax Stepanov const struct ieee80211_cipher_scheme *l = local->hw.cipher_schemes; 36162475b1ccSMax Stepanov int n = local->hw.n_cipher_schemes; 36172475b1ccSMax Stepanov int i; 36182475b1ccSMax Stepanov const struct ieee80211_cipher_scheme *cs = NULL; 36192475b1ccSMax Stepanov 36202475b1ccSMax Stepanov for (i = 0; i < n; i++) { 36212475b1ccSMax Stepanov if (l[i].cipher == cipher) { 36222475b1ccSMax Stepanov cs = &l[i]; 36232475b1ccSMax Stepanov break; 36242475b1ccSMax Stepanov } 36252475b1ccSMax Stepanov } 36262475b1ccSMax Stepanov 36272475b1ccSMax Stepanov if (!cs || !(cs->iftype & BIT(iftype))) 36282475b1ccSMax Stepanov return NULL; 36292475b1ccSMax Stepanov 36302475b1ccSMax Stepanov return cs; 36312475b1ccSMax Stepanov } 36322475b1ccSMax Stepanov 36332475b1ccSMax Stepanov int ieee80211_cs_headroom(struct ieee80211_local *local, 36342475b1ccSMax Stepanov struct cfg80211_crypto_settings *crypto, 36352475b1ccSMax Stepanov enum nl80211_iftype iftype) 36362475b1ccSMax Stepanov { 36372475b1ccSMax Stepanov const struct ieee80211_cipher_scheme *cs; 36382475b1ccSMax Stepanov int headroom = IEEE80211_ENCRYPT_HEADROOM; 36392475b1ccSMax Stepanov int i; 36402475b1ccSMax Stepanov 36412475b1ccSMax Stepanov for (i = 0; i < crypto->n_ciphers_pairwise; i++) { 36422475b1ccSMax Stepanov cs = ieee80211_cs_get(local, crypto->ciphers_pairwise[i], 36432475b1ccSMax Stepanov iftype); 36442475b1ccSMax Stepanov 36452475b1ccSMax Stepanov if (cs && headroom < cs->hdr_len) 36462475b1ccSMax Stepanov headroom = cs->hdr_len; 36472475b1ccSMax Stepanov } 36482475b1ccSMax Stepanov 36492475b1ccSMax Stepanov cs = ieee80211_cs_get(local, crypto->cipher_group, iftype); 36502475b1ccSMax Stepanov if (cs && headroom < cs->hdr_len) 36512475b1ccSMax Stepanov headroom = cs->hdr_len; 36522475b1ccSMax Stepanov 36532475b1ccSMax Stepanov return headroom; 36542475b1ccSMax Stepanov } 3655a7022e65SFelix Fietkau 3656a7022e65SFelix Fietkau static bool 3657a7022e65SFelix Fietkau ieee80211_extend_noa_desc(struct ieee80211_noa_data *data, u32 tsf, int i) 3658a7022e65SFelix Fietkau { 3659a7022e65SFelix Fietkau s32 end = data->desc[i].start + data->desc[i].duration - (tsf + 1); 3660a7022e65SFelix Fietkau int skip; 3661a7022e65SFelix Fietkau 3662a7022e65SFelix Fietkau if (end > 0) 3663a7022e65SFelix Fietkau return false; 3664a7022e65SFelix Fietkau 3665519ee691SJanusz.Dziedzic@tieto.com /* One shot NOA */ 3666519ee691SJanusz.Dziedzic@tieto.com if (data->count[i] == 1) 3667519ee691SJanusz.Dziedzic@tieto.com return false; 3668519ee691SJanusz.Dziedzic@tieto.com 3669519ee691SJanusz.Dziedzic@tieto.com if (data->desc[i].interval == 0) 3670519ee691SJanusz.Dziedzic@tieto.com return false; 3671519ee691SJanusz.Dziedzic@tieto.com 3672a7022e65SFelix Fietkau /* End time is in the past, check for repetitions */ 3673a7022e65SFelix Fietkau skip = DIV_ROUND_UP(-end, data->desc[i].interval); 3674a7022e65SFelix Fietkau if (data->count[i] < 255) { 3675a7022e65SFelix Fietkau if (data->count[i] <= skip) { 3676a7022e65SFelix Fietkau data->count[i] = 0; 3677a7022e65SFelix Fietkau return false; 3678a7022e65SFelix Fietkau } 3679a7022e65SFelix Fietkau 3680a7022e65SFelix Fietkau data->count[i] -= skip; 3681a7022e65SFelix Fietkau } 3682a7022e65SFelix Fietkau 3683a7022e65SFelix Fietkau data->desc[i].start += skip * data->desc[i].interval; 3684a7022e65SFelix Fietkau 3685a7022e65SFelix Fietkau return true; 3686a7022e65SFelix Fietkau } 3687a7022e65SFelix Fietkau 3688a7022e65SFelix Fietkau static bool 3689a7022e65SFelix Fietkau ieee80211_extend_absent_time(struct ieee80211_noa_data *data, u32 tsf, 3690a7022e65SFelix Fietkau s32 *offset) 3691a7022e65SFelix Fietkau { 3692a7022e65SFelix Fietkau bool ret = false; 3693a7022e65SFelix Fietkau int i; 3694a7022e65SFelix Fietkau 3695a7022e65SFelix Fietkau for (i = 0; i < IEEE80211_P2P_NOA_DESC_MAX; i++) { 3696a7022e65SFelix Fietkau s32 cur; 3697a7022e65SFelix Fietkau 3698a7022e65SFelix Fietkau if (!data->count[i]) 3699a7022e65SFelix Fietkau continue; 3700a7022e65SFelix Fietkau 3701a7022e65SFelix Fietkau if (ieee80211_extend_noa_desc(data, tsf + *offset, i)) 3702a7022e65SFelix Fietkau ret = true; 3703a7022e65SFelix Fietkau 3704a7022e65SFelix Fietkau cur = data->desc[i].start - tsf; 3705a7022e65SFelix Fietkau if (cur > *offset) 3706a7022e65SFelix Fietkau continue; 3707a7022e65SFelix Fietkau 3708a7022e65SFelix Fietkau cur = data->desc[i].start + data->desc[i].duration - tsf; 3709a7022e65SFelix Fietkau if (cur > *offset) 3710a7022e65SFelix Fietkau *offset = cur; 3711a7022e65SFelix Fietkau } 3712a7022e65SFelix Fietkau 3713a7022e65SFelix Fietkau return ret; 3714a7022e65SFelix Fietkau } 3715a7022e65SFelix Fietkau 3716a7022e65SFelix Fietkau static u32 3717a7022e65SFelix Fietkau ieee80211_get_noa_absent_time(struct ieee80211_noa_data *data, u32 tsf) 3718a7022e65SFelix Fietkau { 3719a7022e65SFelix Fietkau s32 offset = 0; 3720a7022e65SFelix Fietkau int tries = 0; 3721a7022e65SFelix Fietkau /* 3722a7022e65SFelix Fietkau * arbitrary limit, used to avoid infinite loops when combined NoA 3723a7022e65SFelix Fietkau * descriptors cover the full time period. 3724a7022e65SFelix Fietkau */ 3725a7022e65SFelix Fietkau int max_tries = 5; 3726a7022e65SFelix Fietkau 3727a7022e65SFelix Fietkau ieee80211_extend_absent_time(data, tsf, &offset); 3728a7022e65SFelix Fietkau do { 3729a7022e65SFelix Fietkau if (!ieee80211_extend_absent_time(data, tsf, &offset)) 3730a7022e65SFelix Fietkau break; 3731a7022e65SFelix Fietkau 3732a7022e65SFelix Fietkau tries++; 3733a7022e65SFelix Fietkau } while (tries < max_tries); 3734a7022e65SFelix Fietkau 3735a7022e65SFelix Fietkau return offset; 3736a7022e65SFelix Fietkau } 3737a7022e65SFelix Fietkau 3738a7022e65SFelix Fietkau void ieee80211_update_p2p_noa(struct ieee80211_noa_data *data, u32 tsf) 3739a7022e65SFelix Fietkau { 3740a7022e65SFelix Fietkau u32 next_offset = BIT(31) - 1; 3741a7022e65SFelix Fietkau int i; 3742a7022e65SFelix Fietkau 3743a7022e65SFelix Fietkau data->absent = 0; 3744a7022e65SFelix Fietkau data->has_next_tsf = false; 3745a7022e65SFelix Fietkau for (i = 0; i < IEEE80211_P2P_NOA_DESC_MAX; i++) { 3746a7022e65SFelix Fietkau s32 start; 3747a7022e65SFelix Fietkau 3748a7022e65SFelix Fietkau if (!data->count[i]) 3749a7022e65SFelix Fietkau continue; 3750a7022e65SFelix Fietkau 3751a7022e65SFelix Fietkau ieee80211_extend_noa_desc(data, tsf, i); 3752a7022e65SFelix Fietkau start = data->desc[i].start - tsf; 3753a7022e65SFelix Fietkau if (start <= 0) 3754a7022e65SFelix Fietkau data->absent |= BIT(i); 3755a7022e65SFelix Fietkau 3756a7022e65SFelix Fietkau if (next_offset > start) 3757a7022e65SFelix Fietkau next_offset = start; 3758a7022e65SFelix Fietkau 3759a7022e65SFelix Fietkau data->has_next_tsf = true; 3760a7022e65SFelix Fietkau } 3761a7022e65SFelix Fietkau 3762a7022e65SFelix Fietkau if (data->absent) 3763a7022e65SFelix Fietkau next_offset = ieee80211_get_noa_absent_time(data, tsf); 3764a7022e65SFelix Fietkau 3765a7022e65SFelix Fietkau data->next_tsf = tsf + next_offset; 3766a7022e65SFelix Fietkau } 3767a7022e65SFelix Fietkau EXPORT_SYMBOL(ieee80211_update_p2p_noa); 3768a7022e65SFelix Fietkau 3769a7022e65SFelix Fietkau int ieee80211_parse_p2p_noa(const struct ieee80211_p2p_noa_attr *attr, 3770a7022e65SFelix Fietkau struct ieee80211_noa_data *data, u32 tsf) 3771a7022e65SFelix Fietkau { 3772a7022e65SFelix Fietkau int ret = 0; 3773a7022e65SFelix Fietkau int i; 3774a7022e65SFelix Fietkau 3775a7022e65SFelix Fietkau memset(data, 0, sizeof(*data)); 3776a7022e65SFelix Fietkau 3777a7022e65SFelix Fietkau for (i = 0; i < IEEE80211_P2P_NOA_DESC_MAX; i++) { 3778a7022e65SFelix Fietkau const struct ieee80211_p2p_noa_desc *desc = &attr->desc[i]; 3779a7022e65SFelix Fietkau 3780a7022e65SFelix Fietkau if (!desc->count || !desc->duration) 3781a7022e65SFelix Fietkau continue; 3782a7022e65SFelix Fietkau 3783a7022e65SFelix Fietkau data->count[i] = desc->count; 3784a7022e65SFelix Fietkau data->desc[i].start = le32_to_cpu(desc->start_time); 3785a7022e65SFelix Fietkau data->desc[i].duration = le32_to_cpu(desc->duration); 3786a7022e65SFelix Fietkau data->desc[i].interval = le32_to_cpu(desc->interval); 3787a7022e65SFelix Fietkau 3788a7022e65SFelix Fietkau if (data->count[i] > 1 && 3789a7022e65SFelix Fietkau data->desc[i].interval < data->desc[i].duration) 3790a7022e65SFelix Fietkau continue; 3791a7022e65SFelix Fietkau 3792a7022e65SFelix Fietkau ieee80211_extend_noa_desc(data, tsf, i); 3793a7022e65SFelix Fietkau ret++; 3794a7022e65SFelix Fietkau } 3795a7022e65SFelix Fietkau 3796a7022e65SFelix Fietkau if (ret) 3797a7022e65SFelix Fietkau ieee80211_update_p2p_noa(data, tsf); 3798a7022e65SFelix Fietkau 3799a7022e65SFelix Fietkau return ret; 3800a7022e65SFelix Fietkau } 3801a7022e65SFelix Fietkau EXPORT_SYMBOL(ieee80211_parse_p2p_noa); 3802057d5f4bSThomas Pedersen 3803057d5f4bSThomas Pedersen void ieee80211_recalc_dtim(struct ieee80211_local *local, 3804057d5f4bSThomas Pedersen struct ieee80211_sub_if_data *sdata) 3805057d5f4bSThomas Pedersen { 3806057d5f4bSThomas Pedersen u64 tsf = drv_get_tsf(local, sdata); 3807057d5f4bSThomas Pedersen u64 dtim_count = 0; 3808057d5f4bSThomas Pedersen u16 beacon_int = sdata->vif.bss_conf.beacon_int * 1024; 3809057d5f4bSThomas Pedersen u8 dtim_period = sdata->vif.bss_conf.dtim_period; 3810057d5f4bSThomas Pedersen struct ps_data *ps; 3811057d5f4bSThomas Pedersen u8 bcns_from_dtim; 3812057d5f4bSThomas Pedersen 3813057d5f4bSThomas Pedersen if (tsf == -1ULL || !beacon_int || !dtim_period) 3814057d5f4bSThomas Pedersen return; 3815057d5f4bSThomas Pedersen 3816057d5f4bSThomas Pedersen if (sdata->vif.type == NL80211_IFTYPE_AP || 3817057d5f4bSThomas Pedersen sdata->vif.type == NL80211_IFTYPE_AP_VLAN) { 3818057d5f4bSThomas Pedersen if (!sdata->bss) 3819057d5f4bSThomas Pedersen return; 3820057d5f4bSThomas Pedersen 3821057d5f4bSThomas Pedersen ps = &sdata->bss->ps; 3822057d5f4bSThomas Pedersen } else if (ieee80211_vif_is_mesh(&sdata->vif)) { 3823057d5f4bSThomas Pedersen ps = &sdata->u.mesh.ps; 3824057d5f4bSThomas Pedersen } else { 3825057d5f4bSThomas Pedersen return; 3826057d5f4bSThomas Pedersen } 3827057d5f4bSThomas Pedersen 3828057d5f4bSThomas Pedersen /* 3829057d5f4bSThomas Pedersen * actually finds last dtim_count, mac80211 will update in 3830057d5f4bSThomas Pedersen * __beacon_add_tim(). 3831057d5f4bSThomas Pedersen * dtim_count = dtim_period - (tsf / bcn_int) % dtim_period 3832057d5f4bSThomas Pedersen */ 3833057d5f4bSThomas Pedersen do_div(tsf, beacon_int); 3834057d5f4bSThomas Pedersen bcns_from_dtim = do_div(tsf, dtim_period); 3835057d5f4bSThomas Pedersen /* just had a DTIM */ 3836057d5f4bSThomas Pedersen if (!bcns_from_dtim) 3837057d5f4bSThomas Pedersen dtim_count = 0; 3838057d5f4bSThomas Pedersen else 3839057d5f4bSThomas Pedersen dtim_count = dtim_period - bcns_from_dtim; 3840057d5f4bSThomas Pedersen 3841057d5f4bSThomas Pedersen ps->dtim_count = dtim_count; 3842057d5f4bSThomas Pedersen } 384373de86a3SLuciano Coelho 384471e6195eSMichal Kazior static u8 ieee80211_chanctx_radar_detect(struct ieee80211_local *local, 384571e6195eSMichal Kazior struct ieee80211_chanctx *ctx) 384671e6195eSMichal Kazior { 384771e6195eSMichal Kazior struct ieee80211_sub_if_data *sdata; 384871e6195eSMichal Kazior u8 radar_detect = 0; 384971e6195eSMichal Kazior 385071e6195eSMichal Kazior lockdep_assert_held(&local->chanctx_mtx); 385171e6195eSMichal Kazior 385271e6195eSMichal Kazior if (WARN_ON(ctx->replace_state == IEEE80211_CHANCTX_WILL_BE_REPLACED)) 385371e6195eSMichal Kazior return 0; 385471e6195eSMichal Kazior 385571e6195eSMichal Kazior list_for_each_entry(sdata, &ctx->reserved_vifs, reserved_chanctx_list) 385671e6195eSMichal Kazior if (sdata->reserved_radar_required) 385771e6195eSMichal Kazior radar_detect |= BIT(sdata->reserved_chandef.width); 385871e6195eSMichal Kazior 385971e6195eSMichal Kazior /* 386071e6195eSMichal Kazior * An in-place reservation context should not have any assigned vifs 386171e6195eSMichal Kazior * until it replaces the other context. 386271e6195eSMichal Kazior */ 386371e6195eSMichal Kazior WARN_ON(ctx->replace_state == IEEE80211_CHANCTX_REPLACES_OTHER && 386471e6195eSMichal Kazior !list_empty(&ctx->assigned_vifs)); 386571e6195eSMichal Kazior 386671e6195eSMichal Kazior list_for_each_entry(sdata, &ctx->assigned_vifs, assigned_chanctx_list) 386771e6195eSMichal Kazior if (sdata->radar_required) 386871e6195eSMichal Kazior radar_detect |= BIT(sdata->vif.bss_conf.chandef.width); 386971e6195eSMichal Kazior 387071e6195eSMichal Kazior return radar_detect; 387171e6195eSMichal Kazior } 387271e6195eSMichal Kazior 387373de86a3SLuciano Coelho int ieee80211_check_combinations(struct ieee80211_sub_if_data *sdata, 387473de86a3SLuciano Coelho const struct cfg80211_chan_def *chandef, 387573de86a3SLuciano Coelho enum ieee80211_chanctx_mode chanmode, 387673de86a3SLuciano Coelho u8 radar_detect) 387773de86a3SLuciano Coelho { 387873de86a3SLuciano Coelho struct ieee80211_local *local = sdata->local; 387973de86a3SLuciano Coelho struct ieee80211_sub_if_data *sdata_iter; 388073de86a3SLuciano Coelho enum nl80211_iftype iftype = sdata->wdev.iftype; 388173de86a3SLuciano Coelho struct ieee80211_chanctx *ctx; 388273de86a3SLuciano Coelho int total = 1; 3883e227300cSPurushottam Kushwaha struct iface_combination_params params = { 3884e227300cSPurushottam Kushwaha .radar_detect = radar_detect, 3885e227300cSPurushottam Kushwaha }; 388673de86a3SLuciano Coelho 388773de86a3SLuciano Coelho lockdep_assert_held(&local->chanctx_mtx); 388873de86a3SLuciano Coelho 388973de86a3SLuciano Coelho if (WARN_ON(hweight32(radar_detect) > 1)) 389073de86a3SLuciano Coelho return -EINVAL; 389173de86a3SLuciano Coelho 3892b6a55015SLuciano Coelho if (WARN_ON(chandef && chanmode == IEEE80211_CHANCTX_SHARED && 3893b6a55015SLuciano Coelho !chandef->chan)) 389473de86a3SLuciano Coelho return -EINVAL; 389573de86a3SLuciano Coelho 389673de86a3SLuciano Coelho if (WARN_ON(iftype >= NUM_NL80211_IFTYPES)) 389773de86a3SLuciano Coelho return -EINVAL; 389873de86a3SLuciano Coelho 3899ac668afeSJohannes Berg if (sdata->vif.type == NL80211_IFTYPE_AP || 3900ac668afeSJohannes Berg sdata->vif.type == NL80211_IFTYPE_MESH_POINT) { 3901ac668afeSJohannes Berg /* 3902ac668afeSJohannes Berg * always passing this is harmless, since it'll be the 3903ac668afeSJohannes Berg * same value that cfg80211 finds if it finds the same 3904ac668afeSJohannes Berg * interface ... and that's always allowed 3905ac668afeSJohannes Berg */ 3906ac668afeSJohannes Berg params.new_beacon_int = sdata->vif.bss_conf.beacon_int; 3907ac668afeSJohannes Berg } 3908ac668afeSJohannes Berg 390973de86a3SLuciano Coelho /* Always allow software iftypes */ 3910e6f40511SManikanta Pubbisetty if (cfg80211_iftype_allowed(local->hw.wiphy, iftype, 0, 1)) { 391173de86a3SLuciano Coelho if (radar_detect) 391273de86a3SLuciano Coelho return -EINVAL; 391373de86a3SLuciano Coelho return 0; 391473de86a3SLuciano Coelho } 391573de86a3SLuciano Coelho 3916e227300cSPurushottam Kushwaha if (chandef) 3917e227300cSPurushottam Kushwaha params.num_different_channels = 1; 391873de86a3SLuciano Coelho 391973de86a3SLuciano Coelho if (iftype != NL80211_IFTYPE_UNSPECIFIED) 3920e227300cSPurushottam Kushwaha params.iftype_num[iftype] = 1; 392173de86a3SLuciano Coelho 392273de86a3SLuciano Coelho list_for_each_entry(ctx, &local->chanctx_list, list) { 39235bcae31dSMichal Kazior if (ctx->replace_state == IEEE80211_CHANCTX_WILL_BE_REPLACED) 39245bcae31dSMichal Kazior continue; 3925e227300cSPurushottam Kushwaha params.radar_detect |= 3926e227300cSPurushottam Kushwaha ieee80211_chanctx_radar_detect(local, ctx); 392773de86a3SLuciano Coelho if (ctx->mode == IEEE80211_CHANCTX_EXCLUSIVE) { 3928e227300cSPurushottam Kushwaha params.num_different_channels++; 392973de86a3SLuciano Coelho continue; 393073de86a3SLuciano Coelho } 3931b6a55015SLuciano Coelho if (chandef && chanmode == IEEE80211_CHANCTX_SHARED && 393273de86a3SLuciano Coelho cfg80211_chandef_compatible(chandef, 393373de86a3SLuciano Coelho &ctx->conf.def)) 393473de86a3SLuciano Coelho continue; 3935e227300cSPurushottam Kushwaha params.num_different_channels++; 393673de86a3SLuciano Coelho } 393773de86a3SLuciano Coelho 393873de86a3SLuciano Coelho list_for_each_entry_rcu(sdata_iter, &local->interfaces, list) { 393973de86a3SLuciano Coelho struct wireless_dev *wdev_iter; 394073de86a3SLuciano Coelho 394173de86a3SLuciano Coelho wdev_iter = &sdata_iter->wdev; 394273de86a3SLuciano Coelho 394373de86a3SLuciano Coelho if (sdata_iter == sdata || 39440f611d28SAndrei Otcheretianski !ieee80211_sdata_running(sdata_iter) || 3945e6f40511SManikanta Pubbisetty cfg80211_iftype_allowed(local->hw.wiphy, 3946e6f40511SManikanta Pubbisetty wdev_iter->iftype, 0, 1)) 394773de86a3SLuciano Coelho continue; 394873de86a3SLuciano Coelho 3949e227300cSPurushottam Kushwaha params.iftype_num[wdev_iter->iftype]++; 395073de86a3SLuciano Coelho total++; 395173de86a3SLuciano Coelho } 395273de86a3SLuciano Coelho 3953e227300cSPurushottam Kushwaha if (total == 1 && !params.radar_detect) 395473de86a3SLuciano Coelho return 0; 395573de86a3SLuciano Coelho 3956e227300cSPurushottam Kushwaha return cfg80211_check_combinations(local->hw.wiphy, ¶ms); 395773de86a3SLuciano Coelho } 39586fa001bcSMichal Kazior 39596fa001bcSMichal Kazior static void 39606fa001bcSMichal Kazior ieee80211_iter_max_chans(const struct ieee80211_iface_combination *c, 39616fa001bcSMichal Kazior void *data) 39626fa001bcSMichal Kazior { 39636fa001bcSMichal Kazior u32 *max_num_different_channels = data; 39646fa001bcSMichal Kazior 39656fa001bcSMichal Kazior *max_num_different_channels = max(*max_num_different_channels, 39666fa001bcSMichal Kazior c->num_different_channels); 39676fa001bcSMichal Kazior } 39686fa001bcSMichal Kazior 39696fa001bcSMichal Kazior int ieee80211_max_num_channels(struct ieee80211_local *local) 39706fa001bcSMichal Kazior { 39716fa001bcSMichal Kazior struct ieee80211_sub_if_data *sdata; 39726fa001bcSMichal Kazior struct ieee80211_chanctx *ctx; 39736fa001bcSMichal Kazior u32 max_num_different_channels = 1; 39746fa001bcSMichal Kazior int err; 3975e227300cSPurushottam Kushwaha struct iface_combination_params params = {0}; 39766fa001bcSMichal Kazior 39776fa001bcSMichal Kazior lockdep_assert_held(&local->chanctx_mtx); 39786fa001bcSMichal Kazior 39796fa001bcSMichal Kazior list_for_each_entry(ctx, &local->chanctx_list, list) { 39805bcae31dSMichal Kazior if (ctx->replace_state == IEEE80211_CHANCTX_WILL_BE_REPLACED) 39815bcae31dSMichal Kazior continue; 39825bcae31dSMichal Kazior 3983e227300cSPurushottam Kushwaha params.num_different_channels++; 39846fa001bcSMichal Kazior 3985e227300cSPurushottam Kushwaha params.radar_detect |= 3986e227300cSPurushottam Kushwaha ieee80211_chanctx_radar_detect(local, ctx); 39876fa001bcSMichal Kazior } 39886fa001bcSMichal Kazior 39896fa001bcSMichal Kazior list_for_each_entry_rcu(sdata, &local->interfaces, list) 3990e227300cSPurushottam Kushwaha params.iftype_num[sdata->wdev.iftype]++; 39916fa001bcSMichal Kazior 3992e227300cSPurushottam Kushwaha err = cfg80211_iter_combinations(local->hw.wiphy, ¶ms, 3993e227300cSPurushottam Kushwaha ieee80211_iter_max_chans, 39946fa001bcSMichal Kazior &max_num_different_channels); 39956fa001bcSMichal Kazior if (err < 0) 39966fa001bcSMichal Kazior return err; 39976fa001bcSMichal Kazior 39986fa001bcSMichal Kazior return max_num_different_channels; 39996fa001bcSMichal Kazior } 400040b861a0SArik Nemtsov 400140b861a0SArik Nemtsov u8 *ieee80211_add_wmm_info_ie(u8 *buf, u8 qosinfo) 400240b861a0SArik Nemtsov { 400340b861a0SArik Nemtsov *buf++ = WLAN_EID_VENDOR_SPECIFIC; 400440b861a0SArik Nemtsov *buf++ = 7; /* len */ 400540b861a0SArik Nemtsov *buf++ = 0x00; /* Microsoft OUI 00:50:F2 */ 400640b861a0SArik Nemtsov *buf++ = 0x50; 400740b861a0SArik Nemtsov *buf++ = 0xf2; 400840b861a0SArik Nemtsov *buf++ = 2; /* WME */ 400940b861a0SArik Nemtsov *buf++ = 0; /* WME info */ 401040b861a0SArik Nemtsov *buf++ = 1; /* WME ver */ 401140b861a0SArik Nemtsov *buf++ = qosinfo; /* U-APSD no in use */ 401240b861a0SArik Nemtsov 401340b861a0SArik Nemtsov return buf; 401440b861a0SArik Nemtsov } 4015ba8c3d6fSFelix Fietkau 4016f2ac7e30SMichal Kazior void ieee80211_txq_get_depth(struct ieee80211_txq *txq, 4017f2ac7e30SMichal Kazior unsigned long *frame_cnt, 4018f2ac7e30SMichal Kazior unsigned long *byte_cnt) 4019f2ac7e30SMichal Kazior { 4020f2ac7e30SMichal Kazior struct txq_info *txqi = to_txq_info(txq); 4021bb42f2d1SToke Høiland-Jørgensen u32 frag_cnt = 0, frag_bytes = 0; 4022bb42f2d1SToke Høiland-Jørgensen struct sk_buff *skb; 4023bb42f2d1SToke Høiland-Jørgensen 4024bb42f2d1SToke Høiland-Jørgensen skb_queue_walk(&txqi->frags, skb) { 4025bb42f2d1SToke Høiland-Jørgensen frag_cnt++; 4026bb42f2d1SToke Høiland-Jørgensen frag_bytes += skb->len; 4027bb42f2d1SToke Høiland-Jørgensen } 4028f2ac7e30SMichal Kazior 4029f2ac7e30SMichal Kazior if (frame_cnt) 4030bb42f2d1SToke Høiland-Jørgensen *frame_cnt = txqi->tin.backlog_packets + frag_cnt; 4031f2ac7e30SMichal Kazior 4032f2ac7e30SMichal Kazior if (byte_cnt) 4033bb42f2d1SToke Høiland-Jørgensen *byte_cnt = txqi->tin.backlog_bytes + frag_bytes; 4034f2ac7e30SMichal Kazior } 4035f2ac7e30SMichal Kazior EXPORT_SYMBOL(ieee80211_txq_get_depth); 4036f438ceb8SEmmanuel Grumbach 4037f438ceb8SEmmanuel Grumbach const u8 ieee80211_ac_to_qos_mask[IEEE80211_NUM_ACS] = { 4038f438ceb8SEmmanuel Grumbach IEEE80211_WMM_IE_STA_QOSINFO_AC_VO, 4039f438ceb8SEmmanuel Grumbach IEEE80211_WMM_IE_STA_QOSINFO_AC_VI, 4040f438ceb8SEmmanuel Grumbach IEEE80211_WMM_IE_STA_QOSINFO_AC_BE, 4041f438ceb8SEmmanuel Grumbach IEEE80211_WMM_IE_STA_QOSINFO_AC_BK 4042f438ceb8SEmmanuel Grumbach }; 4043