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 9*23a5f0afSJohannes Berg * Copyright (C) 2018-2022 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 4809a740ceSThomas Pedersen u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len, 4909a740ceSThomas Pedersen enum nl80211_iftype type) 5009a740ceSThomas Pedersen { 5109a740ceSThomas Pedersen __le16 fc = hdr->frame_control; 5209a740ceSThomas Pedersen 5309a740ceSThomas Pedersen if (ieee80211_is_data(fc)) { 5409a740ceSThomas Pedersen if (len < 24) /* drop incorrect hdr len (data) */ 5509a740ceSThomas Pedersen return NULL; 5609a740ceSThomas Pedersen 5709a740ceSThomas Pedersen if (ieee80211_has_a4(fc)) 5809a740ceSThomas Pedersen return NULL; 5909a740ceSThomas Pedersen if (ieee80211_has_tods(fc)) 6009a740ceSThomas Pedersen return hdr->addr1; 6109a740ceSThomas Pedersen if (ieee80211_has_fromds(fc)) 6209a740ceSThomas Pedersen return hdr->addr2; 6309a740ceSThomas Pedersen 6409a740ceSThomas Pedersen return hdr->addr3; 6509a740ceSThomas Pedersen } 6609a740ceSThomas Pedersen 6709a740ceSThomas Pedersen if (ieee80211_is_s1g_beacon(fc)) { 6809a740ceSThomas Pedersen struct ieee80211_ext *ext = (void *) hdr; 6909a740ceSThomas Pedersen 7009a740ceSThomas Pedersen return ext->u.s1g_beacon.sa; 7109a740ceSThomas Pedersen } 7209a740ceSThomas Pedersen 7309a740ceSThomas Pedersen if (ieee80211_is_mgmt(fc)) { 7409a740ceSThomas Pedersen if (len < 24) /* drop incorrect hdr len (mgmt) */ 7509a740ceSThomas Pedersen return NULL; 7609a740ceSThomas Pedersen return hdr->addr3; 7709a740ceSThomas Pedersen } 7809a740ceSThomas Pedersen 7909a740ceSThomas Pedersen if (ieee80211_is_ctl(fc)) { 8009a740ceSThomas Pedersen if (ieee80211_is_pspoll(fc)) 8109a740ceSThomas Pedersen return hdr->addr1; 8209a740ceSThomas Pedersen 8309a740ceSThomas Pedersen if (ieee80211_is_back_req(fc)) { 8409a740ceSThomas Pedersen switch (type) { 8509a740ceSThomas Pedersen case NL80211_IFTYPE_STATION: 8609a740ceSThomas Pedersen return hdr->addr2; 8709a740ceSThomas Pedersen case NL80211_IFTYPE_AP: 8809a740ceSThomas Pedersen case NL80211_IFTYPE_AP_VLAN: 8909a740ceSThomas Pedersen return hdr->addr1; 9009a740ceSThomas Pedersen default: 9109a740ceSThomas Pedersen break; /* fall through to the return */ 9209a740ceSThomas Pedersen } 9309a740ceSThomas Pedersen } 9409a740ceSThomas Pedersen } 9509a740ceSThomas Pedersen 9609a740ceSThomas Pedersen return NULL; 9709a740ceSThomas Pedersen } 9809a740ceSThomas Pedersen EXPORT_SYMBOL(ieee80211_get_bssid); 9909a740ceSThomas Pedersen 1005cf121c3SJohannes Berg void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx) 101c2d1560aSJohannes Berg { 102252b86c4SJohannes Berg struct sk_buff *skb; 1032de8e0d9SJohannes Berg struct ieee80211_hdr *hdr; 104c2d1560aSJohannes Berg 105252b86c4SJohannes Berg skb_queue_walk(&tx->skbs, skb) { 1062de8e0d9SJohannes Berg hdr = (struct ieee80211_hdr *) skb->data; 107c2d1560aSJohannes Berg hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED); 108252b86c4SJohannes Berg } 109c2d1560aSJohannes Berg } 110c2d1560aSJohannes Berg 11157fbcce3SJohannes Berg int ieee80211_frame_duration(enum nl80211_band band, size_t len, 112438b61b7SSimon Wunderlich int rate, int erp, int short_preamble, 113438b61b7SSimon Wunderlich int shift) 114c2d1560aSJohannes Berg { 115c2d1560aSJohannes Berg int dur; 116c2d1560aSJohannes Berg 117c2d1560aSJohannes Berg /* calculate duration (in microseconds, rounded up to next higher 118c2d1560aSJohannes Berg * integer if it includes a fractional microsecond) to send frame of 119c2d1560aSJohannes Berg * len bytes (does not include FCS) at the given rate. Duration will 120c2d1560aSJohannes Berg * also include SIFS. 121c2d1560aSJohannes Berg * 122c2d1560aSJohannes Berg * rate is in 100 kbps, so divident is multiplied by 10 in the 123c2d1560aSJohannes Berg * DIV_ROUND_UP() operations. 124438b61b7SSimon Wunderlich * 125438b61b7SSimon Wunderlich * shift may be 2 for 5 MHz channels or 1 for 10 MHz channels, and 126438b61b7SSimon Wunderlich * is assumed to be 0 otherwise. 127c2d1560aSJohannes Berg */ 128c2d1560aSJohannes Berg 12957fbcce3SJohannes Berg if (band == NL80211_BAND_5GHZ || erp) { 130c2d1560aSJohannes Berg /* 131c2d1560aSJohannes Berg * OFDM: 132c2d1560aSJohannes Berg * 133c2d1560aSJohannes Berg * N_DBPS = DATARATE x 4 134c2d1560aSJohannes Berg * N_SYM = Ceiling((16+8xLENGTH+6) / N_DBPS) 135c2d1560aSJohannes Berg * (16 = SIGNAL time, 6 = tail bits) 136c2d1560aSJohannes Berg * TXTIME = T_PREAMBLE + T_SIGNAL + T_SYM x N_SYM + Signal Ext 137c2d1560aSJohannes Berg * 138c2d1560aSJohannes Berg * T_SYM = 4 usec 139438b61b7SSimon Wunderlich * 802.11a - 18.5.2: aSIFSTime = 16 usec 140c2d1560aSJohannes Berg * 802.11g - 19.8.4: aSIFSTime = 10 usec + 141c2d1560aSJohannes Berg * signal ext = 6 usec 142c2d1560aSJohannes Berg */ 143c2d1560aSJohannes Berg dur = 16; /* SIFS + signal ext */ 144438b61b7SSimon Wunderlich dur += 16; /* IEEE 802.11-2012 18.3.2.4: T_PREAMBLE = 16 usec */ 145438b61b7SSimon Wunderlich dur += 4; /* IEEE 802.11-2012 18.3.2.4: T_SIGNAL = 4 usec */ 146438b61b7SSimon Wunderlich 147438b61b7SSimon Wunderlich /* IEEE 802.11-2012 18.3.2.4: all values above are: 148438b61b7SSimon Wunderlich * * times 4 for 5 MHz 149438b61b7SSimon Wunderlich * * times 2 for 10 MHz 150438b61b7SSimon Wunderlich */ 151438b61b7SSimon Wunderlich dur *= 1 << shift; 1522103dec1SSimon Wunderlich 1532103dec1SSimon Wunderlich /* rates should already consider the channel bandwidth, 1542103dec1SSimon Wunderlich * don't apply divisor again. 1552103dec1SSimon Wunderlich */ 1562103dec1SSimon Wunderlich dur += 4 * DIV_ROUND_UP((16 + 8 * (len + 4) + 6) * 10, 1572103dec1SSimon Wunderlich 4 * rate); /* T_SYM x N_SYM */ 158c2d1560aSJohannes Berg } else { 159c2d1560aSJohannes Berg /* 160c2d1560aSJohannes Berg * 802.11b or 802.11g with 802.11b compatibility: 161c2d1560aSJohannes Berg * 18.3.4: TXTIME = PreambleLength + PLCPHeaderTime + 162c2d1560aSJohannes Berg * Ceiling(((LENGTH+PBCC)x8)/DATARATE). PBCC=0. 163c2d1560aSJohannes Berg * 164c2d1560aSJohannes Berg * 802.11 (DS): 15.3.3, 802.11b: 18.3.4 165c2d1560aSJohannes Berg * aSIFSTime = 10 usec 166c2d1560aSJohannes Berg * aPreambleLength = 144 usec or 72 usec with short preamble 167c2d1560aSJohannes Berg * aPLCPHeaderLength = 48 usec or 24 usec with short preamble 168c2d1560aSJohannes Berg */ 169c2d1560aSJohannes Berg dur = 10; /* aSIFSTime = 10 usec */ 170c2d1560aSJohannes Berg dur += short_preamble ? (72 + 24) : (144 + 48); 171c2d1560aSJohannes Berg 172c2d1560aSJohannes Berg dur += DIV_ROUND_UP(8 * (len + 4) * 10, rate); 173c2d1560aSJohannes Berg } 174c2d1560aSJohannes Berg 175c2d1560aSJohannes Berg return dur; 176c2d1560aSJohannes Berg } 177c2d1560aSJohannes Berg 178c2d1560aSJohannes Berg /* Exported duration function for driver use */ 17932bfd35dSJohannes Berg __le16 ieee80211_generic_frame_duration(struct ieee80211_hw *hw, 18032bfd35dSJohannes Berg struct ieee80211_vif *vif, 18157fbcce3SJohannes Berg enum nl80211_band band, 1828318d78aSJohannes Berg size_t frame_len, 1838318d78aSJohannes Berg struct ieee80211_rate *rate) 184c2d1560aSJohannes Berg { 18525d834e1SJohannes Berg struct ieee80211_sub_if_data *sdata; 186c2d1560aSJohannes Berg u16 dur; 187438b61b7SSimon Wunderlich int erp, shift = 0; 18825d834e1SJohannes Berg bool short_preamble = false; 189c2d1560aSJohannes Berg 1908318d78aSJohannes Berg erp = 0; 19125d834e1SJohannes Berg if (vif) { 19225d834e1SJohannes Berg sdata = vif_to_sdata(vif); 193bda3933aSJohannes Berg short_preamble = sdata->vif.bss_conf.use_short_preamble; 1948318d78aSJohannes Berg if (sdata->flags & IEEE80211_SDATA_OPERATING_GMODE) 1958318d78aSJohannes Berg erp = rate->flags & IEEE80211_RATE_ERP_G; 196438b61b7SSimon Wunderlich shift = ieee80211_vif_get_shift(vif); 19725d834e1SJohannes Berg } 1988318d78aSJohannes Berg 1994ee73f33SMichal Kazior dur = ieee80211_frame_duration(band, frame_len, rate->bitrate, erp, 200438b61b7SSimon Wunderlich short_preamble, shift); 201c2d1560aSJohannes Berg 202c2d1560aSJohannes Berg return cpu_to_le16(dur); 203c2d1560aSJohannes Berg } 204c2d1560aSJohannes Berg EXPORT_SYMBOL(ieee80211_generic_frame_duration); 205c2d1560aSJohannes Berg 20632bfd35dSJohannes Berg __le16 ieee80211_rts_duration(struct ieee80211_hw *hw, 20732bfd35dSJohannes Berg struct ieee80211_vif *vif, size_t frame_len, 208e039fa4aSJohannes Berg const struct ieee80211_tx_info *frame_txctl) 209c2d1560aSJohannes Berg { 210c2d1560aSJohannes Berg struct ieee80211_local *local = hw_to_local(hw); 211c2d1560aSJohannes Berg struct ieee80211_rate *rate; 21225d834e1SJohannes Berg struct ieee80211_sub_if_data *sdata; 213471b3efdSJohannes Berg bool short_preamble; 2142103dec1SSimon Wunderlich int erp, shift = 0, bitrate; 215c2d1560aSJohannes Berg u16 dur; 2162e92e6f2SJohannes Berg struct ieee80211_supported_band *sband; 2172e92e6f2SJohannes Berg 2184ee73f33SMichal Kazior sband = local->hw.wiphy->bands[frame_txctl->band]; 219c2d1560aSJohannes Berg 22025d834e1SJohannes Berg short_preamble = false; 2217e9ed188SDaniel Drake 222e039fa4aSJohannes Berg rate = &sband->bitrates[frame_txctl->control.rts_cts_rate_idx]; 2238318d78aSJohannes Berg 2248318d78aSJohannes Berg erp = 0; 22525d834e1SJohannes Berg if (vif) { 22625d834e1SJohannes Berg sdata = vif_to_sdata(vif); 227bda3933aSJohannes Berg short_preamble = sdata->vif.bss_conf.use_short_preamble; 2288318d78aSJohannes Berg if (sdata->flags & IEEE80211_SDATA_OPERATING_GMODE) 2298318d78aSJohannes Berg erp = rate->flags & IEEE80211_RATE_ERP_G; 230438b61b7SSimon Wunderlich shift = ieee80211_vif_get_shift(vif); 23125d834e1SJohannes Berg } 232c2d1560aSJohannes Berg 2332103dec1SSimon Wunderlich bitrate = DIV_ROUND_UP(rate->bitrate, 1 << shift); 2342103dec1SSimon Wunderlich 235c2d1560aSJohannes Berg /* CTS duration */ 2362103dec1SSimon Wunderlich dur = ieee80211_frame_duration(sband->band, 10, bitrate, 237438b61b7SSimon Wunderlich erp, short_preamble, shift); 238c2d1560aSJohannes Berg /* Data frame duration */ 2392103dec1SSimon Wunderlich dur += ieee80211_frame_duration(sband->band, frame_len, bitrate, 240438b61b7SSimon Wunderlich erp, short_preamble, shift); 241c2d1560aSJohannes Berg /* ACK duration */ 2422103dec1SSimon Wunderlich dur += ieee80211_frame_duration(sband->band, 10, bitrate, 243438b61b7SSimon Wunderlich erp, short_preamble, shift); 244c2d1560aSJohannes Berg 245c2d1560aSJohannes Berg return cpu_to_le16(dur); 246c2d1560aSJohannes Berg } 247c2d1560aSJohannes Berg EXPORT_SYMBOL(ieee80211_rts_duration); 248c2d1560aSJohannes Berg 24932bfd35dSJohannes Berg __le16 ieee80211_ctstoself_duration(struct ieee80211_hw *hw, 25032bfd35dSJohannes Berg struct ieee80211_vif *vif, 251c2d1560aSJohannes Berg size_t frame_len, 252e039fa4aSJohannes Berg const struct ieee80211_tx_info *frame_txctl) 253c2d1560aSJohannes Berg { 254c2d1560aSJohannes Berg struct ieee80211_local *local = hw_to_local(hw); 255c2d1560aSJohannes Berg struct ieee80211_rate *rate; 25625d834e1SJohannes Berg struct ieee80211_sub_if_data *sdata; 257471b3efdSJohannes Berg bool short_preamble; 2582103dec1SSimon Wunderlich int erp, shift = 0, bitrate; 259c2d1560aSJohannes Berg u16 dur; 2602e92e6f2SJohannes Berg struct ieee80211_supported_band *sband; 2612e92e6f2SJohannes Berg 2624ee73f33SMichal Kazior sband = local->hw.wiphy->bands[frame_txctl->band]; 263c2d1560aSJohannes Berg 26425d834e1SJohannes Berg short_preamble = false; 2657e9ed188SDaniel Drake 266e039fa4aSJohannes Berg rate = &sband->bitrates[frame_txctl->control.rts_cts_rate_idx]; 2678318d78aSJohannes Berg erp = 0; 26825d834e1SJohannes Berg if (vif) { 26925d834e1SJohannes Berg sdata = vif_to_sdata(vif); 270bda3933aSJohannes Berg short_preamble = sdata->vif.bss_conf.use_short_preamble; 2718318d78aSJohannes Berg if (sdata->flags & IEEE80211_SDATA_OPERATING_GMODE) 2728318d78aSJohannes Berg erp = rate->flags & IEEE80211_RATE_ERP_G; 273438b61b7SSimon Wunderlich shift = ieee80211_vif_get_shift(vif); 27425d834e1SJohannes Berg } 275c2d1560aSJohannes Berg 2762103dec1SSimon Wunderlich bitrate = DIV_ROUND_UP(rate->bitrate, 1 << shift); 2772103dec1SSimon Wunderlich 278c2d1560aSJohannes Berg /* Data frame duration */ 2792103dec1SSimon Wunderlich dur = ieee80211_frame_duration(sband->band, frame_len, bitrate, 280438b61b7SSimon Wunderlich erp, short_preamble, shift); 281e039fa4aSJohannes Berg if (!(frame_txctl->flags & IEEE80211_TX_CTL_NO_ACK)) { 282c2d1560aSJohannes Berg /* ACK duration */ 2832103dec1SSimon Wunderlich dur += ieee80211_frame_duration(sband->band, 10, bitrate, 284438b61b7SSimon Wunderlich erp, short_preamble, shift); 285c2d1560aSJohannes Berg } 286c2d1560aSJohannes Berg 287c2d1560aSJohannes Berg return cpu_to_le16(dur); 288c2d1560aSJohannes Berg } 289c2d1560aSJohannes Berg EXPORT_SYMBOL(ieee80211_ctstoself_duration); 290c2d1560aSJohannes Berg 29121a5d4c3SManikanta Pubbisetty static void __ieee80211_wake_txqs(struct ieee80211_sub_if_data *sdata, int ac) 29221a5d4c3SManikanta Pubbisetty { 29321a5d4c3SManikanta Pubbisetty struct ieee80211_local *local = sdata->local; 29421a5d4c3SManikanta Pubbisetty struct ieee80211_vif *vif = &sdata->vif; 29521a5d4c3SManikanta Pubbisetty struct fq *fq = &local->fq; 29621a5d4c3SManikanta Pubbisetty struct ps_data *ps = NULL; 29721a5d4c3SManikanta Pubbisetty struct txq_info *txqi; 29821a5d4c3SManikanta Pubbisetty struct sta_info *sta; 29921a5d4c3SManikanta Pubbisetty int i; 30021a5d4c3SManikanta Pubbisetty 301d8dec42bSJohannes Berg local_bh_disable(); 302d8dec42bSJohannes Berg spin_lock(&fq->lock); 30321a5d4c3SManikanta Pubbisetty 30421a5d4c3SManikanta Pubbisetty if (sdata->vif.type == NL80211_IFTYPE_AP) 30521a5d4c3SManikanta Pubbisetty ps = &sdata->bss->ps; 30621a5d4c3SManikanta Pubbisetty 30721a5d4c3SManikanta Pubbisetty sdata->vif.txqs_stopped[ac] = false; 30821a5d4c3SManikanta Pubbisetty 30921a5d4c3SManikanta Pubbisetty list_for_each_entry_rcu(sta, &local->sta_list, list) { 31021a5d4c3SManikanta Pubbisetty if (sdata != sta->sdata) 31121a5d4c3SManikanta Pubbisetty continue; 31221a5d4c3SManikanta Pubbisetty 31321a5d4c3SManikanta Pubbisetty for (i = 0; i < ARRAY_SIZE(sta->sta.txq); i++) { 31421a5d4c3SManikanta Pubbisetty struct ieee80211_txq *txq = sta->sta.txq[i]; 31521a5d4c3SManikanta Pubbisetty 316a5ae3264SErik Stromdahl if (!txq) 317a5ae3264SErik Stromdahl continue; 318a5ae3264SErik Stromdahl 31921a5d4c3SManikanta Pubbisetty txqi = to_txq_info(txq); 32021a5d4c3SManikanta Pubbisetty 32121a5d4c3SManikanta Pubbisetty if (ac != txq->ac) 32221a5d4c3SManikanta Pubbisetty continue; 32321a5d4c3SManikanta Pubbisetty 32421a5d4c3SManikanta Pubbisetty if (!test_and_clear_bit(IEEE80211_TXQ_STOP_NETIF_TX, 32521a5d4c3SManikanta Pubbisetty &txqi->flags)) 32621a5d4c3SManikanta Pubbisetty continue; 32721a5d4c3SManikanta Pubbisetty 328d8dec42bSJohannes Berg spin_unlock(&fq->lock); 32921a5d4c3SManikanta Pubbisetty drv_wake_tx_queue(local, txqi); 330d8dec42bSJohannes Berg spin_lock(&fq->lock); 33121a5d4c3SManikanta Pubbisetty } 33221a5d4c3SManikanta Pubbisetty } 33321a5d4c3SManikanta Pubbisetty 33421a5d4c3SManikanta Pubbisetty if (!vif->txq) 33521a5d4c3SManikanta Pubbisetty goto out; 33621a5d4c3SManikanta Pubbisetty 33721a5d4c3SManikanta Pubbisetty txqi = to_txq_info(vif->txq); 33821a5d4c3SManikanta Pubbisetty 33921a5d4c3SManikanta Pubbisetty if (!test_and_clear_bit(IEEE80211_TXQ_STOP_NETIF_TX, &txqi->flags) || 34021a5d4c3SManikanta Pubbisetty (ps && atomic_read(&ps->num_sta_ps)) || ac != vif->txq->ac) 34121a5d4c3SManikanta Pubbisetty goto out; 34221a5d4c3SManikanta Pubbisetty 343d8dec42bSJohannes Berg spin_unlock(&fq->lock); 34421a5d4c3SManikanta Pubbisetty 34521a5d4c3SManikanta Pubbisetty drv_wake_tx_queue(local, txqi); 346d8dec42bSJohannes Berg local_bh_enable(); 34721a5d4c3SManikanta Pubbisetty return; 34821a5d4c3SManikanta Pubbisetty out: 349d8dec42bSJohannes Berg spin_unlock(&fq->lock); 350d8dec42bSJohannes Berg local_bh_enable(); 35121a5d4c3SManikanta Pubbisetty } 35221a5d4c3SManikanta Pubbisetty 353f6c7f03fSEmmanuel Grumbach static void 354f6c7f03fSEmmanuel Grumbach __releases(&local->queue_stop_reason_lock) 355f6c7f03fSEmmanuel Grumbach __acquires(&local->queue_stop_reason_lock) 356f6c7f03fSEmmanuel Grumbach _ieee80211_wake_txqs(struct ieee80211_local *local, unsigned long *flags) 35721a5d4c3SManikanta Pubbisetty { 35821a5d4c3SManikanta Pubbisetty struct ieee80211_sub_if_data *sdata; 35921a5d4c3SManikanta Pubbisetty int n_acs = IEEE80211_NUM_ACS; 36021a5d4c3SManikanta Pubbisetty int i; 36121a5d4c3SManikanta Pubbisetty 36221a5d4c3SManikanta Pubbisetty rcu_read_lock(); 36321a5d4c3SManikanta Pubbisetty 36421a5d4c3SManikanta Pubbisetty if (local->hw.queues < IEEE80211_NUM_ACS) 36521a5d4c3SManikanta Pubbisetty n_acs = 1; 36621a5d4c3SManikanta Pubbisetty 36721a5d4c3SManikanta Pubbisetty for (i = 0; i < local->hw.queues; i++) { 36821a5d4c3SManikanta Pubbisetty if (local->queue_stop_reasons[i]) 36921a5d4c3SManikanta Pubbisetty continue; 37021a5d4c3SManikanta Pubbisetty 371f6c7f03fSEmmanuel Grumbach spin_unlock_irqrestore(&local->queue_stop_reason_lock, *flags); 37221a5d4c3SManikanta Pubbisetty list_for_each_entry_rcu(sdata, &local->interfaces, list) { 37321a5d4c3SManikanta Pubbisetty int ac; 37421a5d4c3SManikanta Pubbisetty 37521a5d4c3SManikanta Pubbisetty for (ac = 0; ac < n_acs; ac++) { 37621a5d4c3SManikanta Pubbisetty int ac_queue = sdata->vif.hw_queue[ac]; 37721a5d4c3SManikanta Pubbisetty 37821a5d4c3SManikanta Pubbisetty if (ac_queue == i || 37921a5d4c3SManikanta Pubbisetty sdata->vif.cab_queue == i) 38021a5d4c3SManikanta Pubbisetty __ieee80211_wake_txqs(sdata, ac); 38121a5d4c3SManikanta Pubbisetty } 38221a5d4c3SManikanta Pubbisetty } 383f6c7f03fSEmmanuel Grumbach spin_lock_irqsave(&local->queue_stop_reason_lock, *flags); 38421a5d4c3SManikanta Pubbisetty } 38521a5d4c3SManikanta Pubbisetty 38621a5d4c3SManikanta Pubbisetty rcu_read_unlock(); 38721a5d4c3SManikanta Pubbisetty } 38821a5d4c3SManikanta Pubbisetty 389da1cad73SAllen Pais void ieee80211_wake_txqs(struct tasklet_struct *t) 390f6c7f03fSEmmanuel Grumbach { 391da1cad73SAllen Pais struct ieee80211_local *local = from_tasklet(local, t, 392da1cad73SAllen Pais wake_txqs_tasklet); 393f6c7f03fSEmmanuel Grumbach unsigned long flags; 394f6c7f03fSEmmanuel Grumbach 395f6c7f03fSEmmanuel Grumbach spin_lock_irqsave(&local->queue_stop_reason_lock, flags); 396f6c7f03fSEmmanuel Grumbach _ieee80211_wake_txqs(local, &flags); 397f6c7f03fSEmmanuel Grumbach spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); 398f6c7f03fSEmmanuel Grumbach } 399f6c7f03fSEmmanuel Grumbach 4003a25a8c8SJohannes Berg void ieee80211_propagate_queue_wake(struct ieee80211_local *local, int queue) 4013a25a8c8SJohannes Berg { 4023a25a8c8SJohannes Berg struct ieee80211_sub_if_data *sdata; 403a6f38ac3SJohannes Berg int n_acs = IEEE80211_NUM_ACS; 404a6f38ac3SJohannes Berg 40580a83cfcSMichal Kazior if (local->ops->wake_tx_queue) 40680a83cfcSMichal Kazior return; 40780a83cfcSMichal Kazior 408a6f38ac3SJohannes Berg if (local->hw.queues < IEEE80211_NUM_ACS) 409a6f38ac3SJohannes Berg n_acs = 1; 4103a25a8c8SJohannes Berg 4113a25a8c8SJohannes Berg list_for_each_entry_rcu(sdata, &local->interfaces, list) { 4123a25a8c8SJohannes Berg int ac; 4133a25a8c8SJohannes Berg 414f142c6b9SJohannes Berg if (!sdata->dev) 415f142c6b9SJohannes Berg continue; 416f142c6b9SJohannes Berg 4173a25a8c8SJohannes Berg if (sdata->vif.cab_queue != IEEE80211_INVAL_HW_QUEUE && 4183a25a8c8SJohannes Berg local->queue_stop_reasons[sdata->vif.cab_queue] != 0) 4193a25a8c8SJohannes Berg continue; 4203a25a8c8SJohannes Berg 421a6f38ac3SJohannes Berg for (ac = 0; ac < n_acs; ac++) { 4223a25a8c8SJohannes Berg int ac_queue = sdata->vif.hw_queue[ac]; 4233a25a8c8SJohannes Berg 4243a25a8c8SJohannes Berg if (ac_queue == queue || 4253a25a8c8SJohannes Berg (sdata->vif.cab_queue == queue && 4263a25a8c8SJohannes Berg local->queue_stop_reasons[ac_queue] == 0 && 4273a25a8c8SJohannes Berg skb_queue_empty(&local->pending[ac_queue]))) 4283a25a8c8SJohannes Berg netif_wake_subqueue(sdata->dev, ac); 4293a25a8c8SJohannes Berg } 4303a25a8c8SJohannes Berg } 4313a25a8c8SJohannes Berg } 4323a25a8c8SJohannes Berg 433ce7c9111SKalle Valo static void __ieee80211_wake_queue(struct ieee80211_hw *hw, int queue, 434cca07b00SLuciano Coelho enum queue_stop_reason reason, 435f6c7f03fSEmmanuel Grumbach bool refcounted, 436f6c7f03fSEmmanuel Grumbach unsigned long *flags) 437c2d1560aSJohannes Berg { 438c2d1560aSJohannes Berg struct ieee80211_local *local = hw_to_local(hw); 439c2d1560aSJohannes Berg 440b5878a2dSJohannes Berg trace_wake_queue(local, queue, reason); 441b5878a2dSJohannes Berg 442e4e72fb4SJohannes Berg if (WARN_ON(queue >= hw->queues)) 44396f5e66eSJohannes Berg return; 44496f5e66eSJohannes Berg 445ada15125SJohannes Berg if (!test_bit(reason, &local->queue_stop_reasons[queue])) 446ada15125SJohannes Berg return; 447ada15125SJohannes Berg 448856142cdSJohannes Berg if (!refcounted) { 449cca07b00SLuciano Coelho local->q_stop_reasons[queue][reason] = 0; 450856142cdSJohannes Berg } else { 451cca07b00SLuciano Coelho local->q_stop_reasons[queue][reason]--; 452856142cdSJohannes Berg if (WARN_ON(local->q_stop_reasons[queue][reason] < 0)) 453856142cdSJohannes Berg local->q_stop_reasons[queue][reason] = 0; 454856142cdSJohannes Berg } 455cca07b00SLuciano Coelho 456cca07b00SLuciano Coelho if (local->q_stop_reasons[queue][reason] == 0) 457ce7c9111SKalle Valo __clear_bit(reason, &local->queue_stop_reasons[queue]); 458ce7c9111SKalle Valo 459ce7c9111SKalle Valo if (local->queue_stop_reasons[queue] != 0) 460ce7c9111SKalle Valo /* someone still has this queue stopped */ 461ce7c9111SKalle Valo return; 462ce7c9111SKalle Valo 4637236fe29SJohannes Berg if (skb_queue_empty(&local->pending[queue])) { 464cf0277e7SJohannes Berg rcu_read_lock(); 4653a25a8c8SJohannes Berg ieee80211_propagate_queue_wake(local, queue); 466cf0277e7SJohannes Berg rcu_read_unlock(); 4677236fe29SJohannes Berg } else 4687236fe29SJohannes Berg tasklet_schedule(&local->tx_pending_tasklet); 46921a5d4c3SManikanta Pubbisetty 470f6c7f03fSEmmanuel Grumbach /* 471f6c7f03fSEmmanuel Grumbach * Calling _ieee80211_wake_txqs here can be a problem because it may 472f6c7f03fSEmmanuel Grumbach * release queue_stop_reason_lock which has been taken by 473f6c7f03fSEmmanuel Grumbach * __ieee80211_wake_queue's caller. It is certainly not very nice to 474f6c7f03fSEmmanuel Grumbach * release someone's lock, but it is fine because all the callers of 475f6c7f03fSEmmanuel Grumbach * __ieee80211_wake_queue call it right before releasing the lock. 476f6c7f03fSEmmanuel Grumbach */ 477f6c7f03fSEmmanuel Grumbach if (local->ops->wake_tx_queue) { 478f6c7f03fSEmmanuel Grumbach if (reason == IEEE80211_QUEUE_STOP_REASON_DRIVER) 47921a5d4c3SManikanta Pubbisetty tasklet_schedule(&local->wake_txqs_tasklet); 480f6c7f03fSEmmanuel Grumbach else 481f6c7f03fSEmmanuel Grumbach _ieee80211_wake_txqs(local, flags); 482f6c7f03fSEmmanuel Grumbach } 483c2d1560aSJohannes Berg } 484ce7c9111SKalle Valo 48596f5e66eSJohannes Berg void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue, 486cca07b00SLuciano Coelho enum queue_stop_reason reason, 487cca07b00SLuciano Coelho bool refcounted) 488ce7c9111SKalle Valo { 489ce7c9111SKalle Valo struct ieee80211_local *local = hw_to_local(hw); 490ce7c9111SKalle Valo unsigned long flags; 491ce7c9111SKalle Valo 492ce7c9111SKalle Valo spin_lock_irqsave(&local->queue_stop_reason_lock, flags); 493f6c7f03fSEmmanuel Grumbach __ieee80211_wake_queue(hw, queue, reason, refcounted, &flags); 494ce7c9111SKalle Valo spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); 495ce7c9111SKalle Valo } 496ce7c9111SKalle Valo 497ce7c9111SKalle Valo void ieee80211_wake_queue(struct ieee80211_hw *hw, int queue) 498ce7c9111SKalle Valo { 499ce7c9111SKalle Valo ieee80211_wake_queue_by_reason(hw, queue, 500cca07b00SLuciano Coelho IEEE80211_QUEUE_STOP_REASON_DRIVER, 501cca07b00SLuciano Coelho false); 502ce7c9111SKalle Valo } 503c2d1560aSJohannes Berg EXPORT_SYMBOL(ieee80211_wake_queue); 504c2d1560aSJohannes Berg 505ce7c9111SKalle Valo static void __ieee80211_stop_queue(struct ieee80211_hw *hw, int queue, 506cca07b00SLuciano Coelho enum queue_stop_reason reason, 507cca07b00SLuciano Coelho bool refcounted) 508c2d1560aSJohannes Berg { 509c2d1560aSJohannes Berg struct ieee80211_local *local = hw_to_local(hw); 510cf0277e7SJohannes Berg struct ieee80211_sub_if_data *sdata; 511a6f38ac3SJohannes Berg int n_acs = IEEE80211_NUM_ACS; 512c2d1560aSJohannes Berg 513b5878a2dSJohannes Berg trace_stop_queue(local, queue, reason); 514b5878a2dSJohannes Berg 515e4e72fb4SJohannes Berg if (WARN_ON(queue >= hw->queues)) 51696f5e66eSJohannes Berg return; 51796f5e66eSJohannes Berg 518cca07b00SLuciano Coelho if (!refcounted) 519cca07b00SLuciano Coelho local->q_stop_reasons[queue][reason] = 1; 520cca07b00SLuciano Coelho else 521cca07b00SLuciano Coelho local->q_stop_reasons[queue][reason]++; 522ada15125SJohannes Berg 523cca07b00SLuciano Coelho if (__test_and_set_bit(reason, &local->queue_stop_reasons[queue])) 524cca07b00SLuciano Coelho return; 525cf0277e7SJohannes Berg 526a6f38ac3SJohannes Berg if (local->hw.queues < IEEE80211_NUM_ACS) 527a6f38ac3SJohannes Berg n_acs = 1; 528a6f38ac3SJohannes Berg 529cf0277e7SJohannes Berg rcu_read_lock(); 5303a25a8c8SJohannes Berg list_for_each_entry_rcu(sdata, &local->interfaces, list) { 5313a25a8c8SJohannes Berg int ac; 5323a25a8c8SJohannes Berg 533f142c6b9SJohannes Berg if (!sdata->dev) 534f142c6b9SJohannes Berg continue; 535f142c6b9SJohannes Berg 536a6f38ac3SJohannes Berg for (ac = 0; ac < n_acs; ac++) { 5373a25a8c8SJohannes Berg if (sdata->vif.hw_queue[ac] == queue || 53821a5d4c3SManikanta Pubbisetty sdata->vif.cab_queue == queue) { 53921a5d4c3SManikanta Pubbisetty if (!local->ops->wake_tx_queue) { 5403a25a8c8SJohannes Berg netif_stop_subqueue(sdata->dev, ac); 54121a5d4c3SManikanta Pubbisetty continue; 54221a5d4c3SManikanta Pubbisetty } 54321a5d4c3SManikanta Pubbisetty spin_lock(&local->fq.lock); 54421a5d4c3SManikanta Pubbisetty sdata->vif.txqs_stopped[ac] = true; 54521a5d4c3SManikanta Pubbisetty spin_unlock(&local->fq.lock); 54621a5d4c3SManikanta Pubbisetty } 5473a25a8c8SJohannes Berg } 5483a25a8c8SJohannes Berg } 549cf0277e7SJohannes Berg rcu_read_unlock(); 550c2d1560aSJohannes Berg } 551ce7c9111SKalle Valo 55296f5e66eSJohannes Berg void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue, 553cca07b00SLuciano Coelho enum queue_stop_reason reason, 554cca07b00SLuciano Coelho bool refcounted) 555ce7c9111SKalle Valo { 556ce7c9111SKalle Valo struct ieee80211_local *local = hw_to_local(hw); 557ce7c9111SKalle Valo unsigned long flags; 558ce7c9111SKalle Valo 559ce7c9111SKalle Valo spin_lock_irqsave(&local->queue_stop_reason_lock, flags); 560cca07b00SLuciano Coelho __ieee80211_stop_queue(hw, queue, reason, refcounted); 561ce7c9111SKalle Valo spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); 562ce7c9111SKalle Valo } 563ce7c9111SKalle Valo 564ce7c9111SKalle Valo void ieee80211_stop_queue(struct ieee80211_hw *hw, int queue) 565ce7c9111SKalle Valo { 566ce7c9111SKalle Valo ieee80211_stop_queue_by_reason(hw, queue, 567cca07b00SLuciano Coelho IEEE80211_QUEUE_STOP_REASON_DRIVER, 568cca07b00SLuciano Coelho false); 569ce7c9111SKalle Valo } 570c2d1560aSJohannes Berg EXPORT_SYMBOL(ieee80211_stop_queue); 571c2d1560aSJohannes Berg 5728f77f384SJohannes Berg void ieee80211_add_pending_skb(struct ieee80211_local *local, 5738f77f384SJohannes Berg struct sk_buff *skb) 5748f77f384SJohannes Berg { 5758f77f384SJohannes Berg struct ieee80211_hw *hw = &local->hw; 5768f77f384SJohannes Berg unsigned long flags; 577a7bc376cSJohannes Berg struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 5783a25a8c8SJohannes Berg int queue = info->hw_queue; 579a7bc376cSJohannes Berg 580a7bc376cSJohannes Berg if (WARN_ON(!info->control.vif)) { 581d4fa14cdSFelix Fietkau ieee80211_free_txskb(&local->hw, skb); 582a7bc376cSJohannes Berg return; 583a7bc376cSJohannes Berg } 5848f77f384SJohannes Berg 5858f77f384SJohannes Berg spin_lock_irqsave(&local->queue_stop_reason_lock, flags); 586cca07b00SLuciano Coelho __ieee80211_stop_queue(hw, queue, IEEE80211_QUEUE_STOP_REASON_SKB_ADD, 587cca07b00SLuciano Coelho false); 5883b8d81e0SJohannes Berg __skb_queue_tail(&local->pending[queue], skb); 589cca07b00SLuciano Coelho __ieee80211_wake_queue(hw, queue, IEEE80211_QUEUE_STOP_REASON_SKB_ADD, 590f6c7f03fSEmmanuel Grumbach false, &flags); 5918f77f384SJohannes Berg spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); 5928f77f384SJohannes Berg } 5938f77f384SJohannes Berg 594e3685e03SJohannes Berg void ieee80211_add_pending_skbs(struct ieee80211_local *local, 595e3685e03SJohannes Berg struct sk_buff_head *skbs) 5968f77f384SJohannes Berg { 5978f77f384SJohannes Berg struct ieee80211_hw *hw = &local->hw; 5988f77f384SJohannes Berg struct sk_buff *skb; 5998f77f384SJohannes Berg unsigned long flags; 600b0b97a8aSJohannes Berg int queue, i; 6018f77f384SJohannes Berg 6028f77f384SJohannes Berg spin_lock_irqsave(&local->queue_stop_reason_lock, flags); 6038f77f384SJohannes Berg while ((skb = skb_dequeue(skbs))) { 604a7bc376cSJohannes Berg struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 605a7bc376cSJohannes Berg 606a7bc376cSJohannes Berg if (WARN_ON(!info->control.vif)) { 607d4fa14cdSFelix Fietkau ieee80211_free_txskb(&local->hw, skb); 608a7bc376cSJohannes Berg continue; 609a7bc376cSJohannes Berg } 610a7bc376cSJohannes Berg 6113a25a8c8SJohannes Berg queue = info->hw_queue; 6124644ae89SJohannes Berg 6134644ae89SJohannes Berg __ieee80211_stop_queue(hw, queue, 614cca07b00SLuciano Coelho IEEE80211_QUEUE_STOP_REASON_SKB_ADD, 615cca07b00SLuciano Coelho false); 6164644ae89SJohannes Berg 6173b8d81e0SJohannes Berg __skb_queue_tail(&local->pending[queue], skb); 6188f77f384SJohannes Berg } 6198f77f384SJohannes Berg 6203b8d81e0SJohannes Berg for (i = 0; i < hw->queues; i++) 6218f77f384SJohannes Berg __ieee80211_wake_queue(hw, i, 622cca07b00SLuciano Coelho IEEE80211_QUEUE_STOP_REASON_SKB_ADD, 623f6c7f03fSEmmanuel Grumbach false, &flags); 6248f77f384SJohannes Berg spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); 6258f77f384SJohannes Berg } 6268f77f384SJohannes Berg 627ce7c9111SKalle Valo void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw, 628445ea4e8SJohannes Berg unsigned long queues, 629cca07b00SLuciano Coelho enum queue_stop_reason reason, 630cca07b00SLuciano Coelho bool refcounted) 631c2d1560aSJohannes Berg { 632ce7c9111SKalle Valo struct ieee80211_local *local = hw_to_local(hw); 633ce7c9111SKalle Valo unsigned long flags; 634c2d1560aSJohannes Berg int i; 635c2d1560aSJohannes Berg 636ce7c9111SKalle Valo spin_lock_irqsave(&local->queue_stop_reason_lock, flags); 637ce7c9111SKalle Valo 638445ea4e8SJohannes Berg for_each_set_bit(i, &queues, hw->queues) 639cca07b00SLuciano Coelho __ieee80211_stop_queue(hw, i, reason, refcounted); 640ce7c9111SKalle Valo 641ce7c9111SKalle Valo spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); 642ce7c9111SKalle Valo } 643ce7c9111SKalle Valo 644ce7c9111SKalle Valo void ieee80211_stop_queues(struct ieee80211_hw *hw) 645ce7c9111SKalle Valo { 646445ea4e8SJohannes Berg ieee80211_stop_queues_by_reason(hw, IEEE80211_MAX_QUEUE_MAP, 647cca07b00SLuciano Coelho IEEE80211_QUEUE_STOP_REASON_DRIVER, 648cca07b00SLuciano Coelho false); 649c2d1560aSJohannes Berg } 650c2d1560aSJohannes Berg EXPORT_SYMBOL(ieee80211_stop_queues); 651c2d1560aSJohannes Berg 65292ab8535STomas Winkler int ieee80211_queue_stopped(struct ieee80211_hw *hw, int queue) 65392ab8535STomas Winkler { 65492ab8535STomas Winkler struct ieee80211_local *local = hw_to_local(hw); 6553b8d81e0SJohannes Berg unsigned long flags; 6563b8d81e0SJohannes Berg int ret; 65796f5e66eSJohannes Berg 658e4e72fb4SJohannes Berg if (WARN_ON(queue >= hw->queues)) 65996f5e66eSJohannes Berg return true; 66096f5e66eSJohannes Berg 6613b8d81e0SJohannes Berg spin_lock_irqsave(&local->queue_stop_reason_lock, flags); 6622419ea14SThomas Pedersen ret = test_bit(IEEE80211_QUEUE_STOP_REASON_DRIVER, 6632419ea14SThomas Pedersen &local->queue_stop_reasons[queue]); 6643b8d81e0SJohannes Berg spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); 6653b8d81e0SJohannes Berg return ret; 66692ab8535STomas Winkler } 66792ab8535STomas Winkler EXPORT_SYMBOL(ieee80211_queue_stopped); 66892ab8535STomas Winkler 669ce7c9111SKalle Valo void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw, 670445ea4e8SJohannes Berg unsigned long queues, 671cca07b00SLuciano Coelho enum queue_stop_reason reason, 672cca07b00SLuciano Coelho bool refcounted) 673c2d1560aSJohannes Berg { 674ce7c9111SKalle Valo struct ieee80211_local *local = hw_to_local(hw); 675ce7c9111SKalle Valo unsigned long flags; 676c2d1560aSJohannes Berg int i; 677c2d1560aSJohannes Berg 678ce7c9111SKalle Valo spin_lock_irqsave(&local->queue_stop_reason_lock, flags); 679ce7c9111SKalle Valo 680445ea4e8SJohannes Berg for_each_set_bit(i, &queues, hw->queues) 681f6c7f03fSEmmanuel Grumbach __ieee80211_wake_queue(hw, i, reason, refcounted, &flags); 682ce7c9111SKalle Valo 683ce7c9111SKalle Valo spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); 684ce7c9111SKalle Valo } 685ce7c9111SKalle Valo 686ce7c9111SKalle Valo void ieee80211_wake_queues(struct ieee80211_hw *hw) 687ce7c9111SKalle Valo { 688445ea4e8SJohannes Berg ieee80211_wake_queues_by_reason(hw, IEEE80211_MAX_QUEUE_MAP, 689cca07b00SLuciano Coelho IEEE80211_QUEUE_STOP_REASON_DRIVER, 690cca07b00SLuciano Coelho false); 691c2d1560aSJohannes Berg } 692c2d1560aSJohannes Berg EXPORT_SYMBOL(ieee80211_wake_queues); 693dabeb344SJohannes Berg 69426da23b6SLuciano Coelho static unsigned int 69526da23b6SLuciano Coelho ieee80211_get_vif_queues(struct ieee80211_local *local, 69639ecc01dSJohannes Berg struct ieee80211_sub_if_data *sdata) 69739ecc01dSJohannes Berg { 69826da23b6SLuciano Coelho unsigned int queues; 69939ecc01dSJohannes Berg 70030686bf7SJohannes Berg if (sdata && ieee80211_hw_check(&local->hw, QUEUE_CONTROL)) { 70139ecc01dSJohannes Berg int ac; 70239ecc01dSJohannes Berg 70339ecc01dSJohannes Berg queues = 0; 70439ecc01dSJohannes Berg 70539ecc01dSJohannes Berg for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) 70639ecc01dSJohannes Berg queues |= BIT(sdata->vif.hw_queue[ac]); 70739ecc01dSJohannes Berg if (sdata->vif.cab_queue != IEEE80211_INVAL_HW_QUEUE) 70839ecc01dSJohannes Berg queues |= BIT(sdata->vif.cab_queue); 70939ecc01dSJohannes Berg } else { 71039ecc01dSJohannes Berg /* all queues */ 71139ecc01dSJohannes Berg queues = BIT(local->hw.queues) - 1; 71239ecc01dSJohannes Berg } 71339ecc01dSJohannes Berg 71426da23b6SLuciano Coelho return queues; 71526da23b6SLuciano Coelho } 71626da23b6SLuciano Coelho 7174f9610d5SLiad Kaufman void __ieee80211_flush_queues(struct ieee80211_local *local, 7184f9610d5SLiad Kaufman struct ieee80211_sub_if_data *sdata, 7193b24f4c6SEmmanuel Grumbach unsigned int queues, bool drop) 72026da23b6SLuciano Coelho { 72126da23b6SLuciano Coelho if (!local->ops->flush) 72226da23b6SLuciano Coelho return; 72326da23b6SLuciano Coelho 7244f9610d5SLiad Kaufman /* 7254f9610d5SLiad Kaufman * If no queue was set, or if the HW doesn't support 7264f9610d5SLiad Kaufman * IEEE80211_HW_QUEUE_CONTROL - flush all queues 7274f9610d5SLiad Kaufman */ 72830686bf7SJohannes Berg if (!queues || !ieee80211_hw_check(&local->hw, QUEUE_CONTROL)) 72926da23b6SLuciano Coelho queues = ieee80211_get_vif_queues(local, sdata); 73026da23b6SLuciano Coelho 73159f48fe2SLuciano Coelho ieee80211_stop_queues_by_reason(&local->hw, queues, 732cca07b00SLuciano Coelho IEEE80211_QUEUE_STOP_REASON_FLUSH, 733cca07b00SLuciano Coelho false); 734445ea4e8SJohannes Berg 7353b24f4c6SEmmanuel Grumbach drv_flush(local, sdata, queues, drop); 736445ea4e8SJohannes Berg 73759f48fe2SLuciano Coelho ieee80211_wake_queues_by_reason(&local->hw, queues, 738cca07b00SLuciano Coelho IEEE80211_QUEUE_STOP_REASON_FLUSH, 739cca07b00SLuciano Coelho false); 74039ecc01dSJohannes Berg } 74139ecc01dSJohannes Berg 7424f9610d5SLiad Kaufman void ieee80211_flush_queues(struct ieee80211_local *local, 7433b24f4c6SEmmanuel Grumbach struct ieee80211_sub_if_data *sdata, bool drop) 7444f9610d5SLiad Kaufman { 7453b24f4c6SEmmanuel Grumbach __ieee80211_flush_queues(local, sdata, 0, drop); 7464f9610d5SLiad Kaufman } 7474f9610d5SLiad Kaufman 74826da23b6SLuciano Coelho void ieee80211_stop_vif_queues(struct ieee80211_local *local, 74926da23b6SLuciano Coelho struct ieee80211_sub_if_data *sdata, 75026da23b6SLuciano Coelho enum queue_stop_reason reason) 75126da23b6SLuciano Coelho { 75226da23b6SLuciano Coelho ieee80211_stop_queues_by_reason(&local->hw, 75326da23b6SLuciano Coelho ieee80211_get_vif_queues(local, sdata), 75426da23b6SLuciano Coelho reason, true); 75526da23b6SLuciano Coelho } 75626da23b6SLuciano Coelho 75726da23b6SLuciano Coelho void ieee80211_wake_vif_queues(struct ieee80211_local *local, 75826da23b6SLuciano Coelho struct ieee80211_sub_if_data *sdata, 75926da23b6SLuciano Coelho enum queue_stop_reason reason) 76026da23b6SLuciano Coelho { 76126da23b6SLuciano Coelho ieee80211_wake_queues_by_reason(&local->hw, 76226da23b6SLuciano Coelho ieee80211_get_vif_queues(local, sdata), 76326da23b6SLuciano Coelho reason, true); 76426da23b6SLuciano Coelho } 76526da23b6SLuciano Coelho 7663384d757SArik Nemtsov static void __iterate_interfaces(struct ieee80211_local *local, 767c7c71066SJohannes Berg u32 iter_flags, 768dabeb344SJohannes Berg void (*iterator)(void *data, u8 *mac, 76932bfd35dSJohannes Berg struct ieee80211_vif *vif), 770dabeb344SJohannes Berg void *data) 771dabeb344SJohannes Berg { 772dabeb344SJohannes Berg struct ieee80211_sub_if_data *sdata; 7733384d757SArik Nemtsov bool active_only = iter_flags & IEEE80211_IFACE_ITER_ACTIVE; 774dabeb344SJohannes Berg 775e38bad47SJohannes Berg list_for_each_entry_rcu(sdata, &local->interfaces, list) { 77651fb61e7SJohannes Berg switch (sdata->vif.type) { 77705c914feSJohannes Berg case NL80211_IFTYPE_MONITOR: 778d8212184SAviya Erenfeld if (!(sdata->u.mntr.flags & MONITOR_FLAG_ACTIVE)) 77931eba5bcSFelix Fietkau continue; 78031eba5bcSFelix Fietkau break; 78105c914feSJohannes Berg case NL80211_IFTYPE_AP_VLAN: 782dabeb344SJohannes Berg continue; 7832ca27bcfSJohannes Berg default: 784dabeb344SJohannes Berg break; 785dabeb344SJohannes Berg } 7868b2c9824SJohannes Berg if (!(iter_flags & IEEE80211_IFACE_ITER_RESUME_ALL) && 7873384d757SArik Nemtsov active_only && !(sdata->flags & IEEE80211_SDATA_IN_DRIVER)) 7888b2c9824SJohannes Berg continue; 789265a0708SBen Greear if ((iter_flags & IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER) && 790265a0708SBen Greear !(sdata->flags & IEEE80211_SDATA_IN_DRIVER)) 791265a0708SBen Greear continue; 7923384d757SArik Nemtsov if (ieee80211_sdata_running(sdata) || !active_only) 79347846c9bSJohannes Berg iterator(data, sdata->vif.addr, 79432bfd35dSJohannes Berg &sdata->vif); 795dabeb344SJohannes Berg } 796e38bad47SJohannes Berg 797c7c71066SJohannes Berg sdata = rcu_dereference_check(local->monitor_sdata, 798c7c71066SJohannes Berg lockdep_is_held(&local->iflist_mtx) || 7996dd23603SJohannes Berg lockdep_is_held(&local->hw.wiphy->mtx)); 8008b2c9824SJohannes Berg if (sdata && 8013384d757SArik Nemtsov (iter_flags & IEEE80211_IFACE_ITER_RESUME_ALL || !active_only || 8028b2c9824SJohannes Berg sdata->flags & IEEE80211_SDATA_IN_DRIVER)) 803685fb72bSJohannes Berg iterator(data, sdata->vif.addr, &sdata->vif); 804c7c71066SJohannes Berg } 805685fb72bSJohannes Berg 8063384d757SArik Nemtsov void ieee80211_iterate_interfaces( 807c7c71066SJohannes Berg struct ieee80211_hw *hw, u32 iter_flags, 808c7c71066SJohannes Berg void (*iterator)(void *data, u8 *mac, 809c7c71066SJohannes Berg struct ieee80211_vif *vif), 810c7c71066SJohannes Berg void *data) 811c7c71066SJohannes Berg { 812c7c71066SJohannes Berg struct ieee80211_local *local = hw_to_local(hw); 813c7c71066SJohannes Berg 814c7c71066SJohannes Berg mutex_lock(&local->iflist_mtx); 8153384d757SArik Nemtsov __iterate_interfaces(local, iter_flags, iterator, data); 816c7c71066SJohannes Berg mutex_unlock(&local->iflist_mtx); 817c7c71066SJohannes Berg } 8183384d757SArik Nemtsov EXPORT_SYMBOL_GPL(ieee80211_iterate_interfaces); 819c7c71066SJohannes Berg 820c7c71066SJohannes Berg void ieee80211_iterate_active_interfaces_atomic( 821c7c71066SJohannes Berg struct ieee80211_hw *hw, u32 iter_flags, 822c7c71066SJohannes Berg void (*iterator)(void *data, u8 *mac, 823c7c71066SJohannes Berg struct ieee80211_vif *vif), 824c7c71066SJohannes Berg void *data) 825c7c71066SJohannes Berg { 826c7c71066SJohannes Berg struct ieee80211_local *local = hw_to_local(hw); 827c7c71066SJohannes Berg 828c7c71066SJohannes Berg rcu_read_lock(); 8293384d757SArik Nemtsov __iterate_interfaces(local, iter_flags | IEEE80211_IFACE_ITER_ACTIVE, 8303384d757SArik Nemtsov iterator, data); 831e38bad47SJohannes Berg rcu_read_unlock(); 832dabeb344SJohannes Berg } 8332f561febSIvo van Doorn EXPORT_SYMBOL_GPL(ieee80211_iterate_active_interfaces_atomic); 83437ffc8daSJohannes Berg 835a05829a7SJohannes Berg void ieee80211_iterate_active_interfaces_mtx( 836c7c71066SJohannes Berg struct ieee80211_hw *hw, u32 iter_flags, 837c7c71066SJohannes Berg void (*iterator)(void *data, u8 *mac, 838c7c71066SJohannes Berg struct ieee80211_vif *vif), 839c7c71066SJohannes Berg void *data) 840c7c71066SJohannes Berg { 841c7c71066SJohannes Berg struct ieee80211_local *local = hw_to_local(hw); 842c7c71066SJohannes Berg 843a05829a7SJohannes Berg lockdep_assert_wiphy(hw->wiphy); 844c7c71066SJohannes Berg 8453384d757SArik Nemtsov __iterate_interfaces(local, iter_flags | IEEE80211_IFACE_ITER_ACTIVE, 8463384d757SArik Nemtsov iterator, data); 847c7c71066SJohannes Berg } 848a05829a7SJohannes Berg EXPORT_SYMBOL_GPL(ieee80211_iterate_active_interfaces_mtx); 849c7c71066SJohannes Berg 8500fc1e049SArik Nemtsov static void __iterate_stations(struct ieee80211_local *local, 8510fc1e049SArik Nemtsov void (*iterator)(void *data, 8520fc1e049SArik Nemtsov struct ieee80211_sta *sta), 8530fc1e049SArik Nemtsov void *data) 8540fc1e049SArik Nemtsov { 8550fc1e049SArik Nemtsov struct sta_info *sta; 8560fc1e049SArik Nemtsov 8570fc1e049SArik Nemtsov list_for_each_entry_rcu(sta, &local->sta_list, list) { 8580fc1e049SArik Nemtsov if (!sta->uploaded) 8590fc1e049SArik Nemtsov continue; 8600fc1e049SArik Nemtsov 8610fc1e049SArik Nemtsov iterator(data, &sta->sta); 8620fc1e049SArik Nemtsov } 8630fc1e049SArik Nemtsov } 8640fc1e049SArik Nemtsov 865acb99b9bSMartin Blumenstingl void ieee80211_iterate_stations(struct ieee80211_hw *hw, 866acb99b9bSMartin Blumenstingl void (*iterator)(void *data, 867acb99b9bSMartin Blumenstingl struct ieee80211_sta *sta), 868acb99b9bSMartin Blumenstingl void *data) 869acb99b9bSMartin Blumenstingl { 870acb99b9bSMartin Blumenstingl struct ieee80211_local *local = hw_to_local(hw); 871acb99b9bSMartin Blumenstingl 872acb99b9bSMartin Blumenstingl mutex_lock(&local->sta_mtx); 873acb99b9bSMartin Blumenstingl __iterate_stations(local, iterator, data); 874acb99b9bSMartin Blumenstingl mutex_unlock(&local->sta_mtx); 875acb99b9bSMartin Blumenstingl } 876acb99b9bSMartin Blumenstingl EXPORT_SYMBOL_GPL(ieee80211_iterate_stations); 877acb99b9bSMartin Blumenstingl 8780fc1e049SArik Nemtsov void ieee80211_iterate_stations_atomic(struct ieee80211_hw *hw, 8790fc1e049SArik Nemtsov void (*iterator)(void *data, 8800fc1e049SArik Nemtsov struct ieee80211_sta *sta), 8810fc1e049SArik Nemtsov void *data) 8820fc1e049SArik Nemtsov { 8830fc1e049SArik Nemtsov struct ieee80211_local *local = hw_to_local(hw); 8840fc1e049SArik Nemtsov 8850fc1e049SArik Nemtsov rcu_read_lock(); 8860fc1e049SArik Nemtsov __iterate_stations(local, iterator, data); 8870fc1e049SArik Nemtsov rcu_read_unlock(); 8880fc1e049SArik Nemtsov } 8890fc1e049SArik Nemtsov EXPORT_SYMBOL_GPL(ieee80211_iterate_stations_atomic); 8900fc1e049SArik Nemtsov 891ad7e718cSJohannes Berg struct ieee80211_vif *wdev_to_ieee80211_vif(struct wireless_dev *wdev) 892ad7e718cSJohannes Berg { 893ad7e718cSJohannes Berg struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 894ad7e718cSJohannes Berg 895ad7e718cSJohannes Berg if (!ieee80211_sdata_running(sdata) || 896ad7e718cSJohannes Berg !(sdata->flags & IEEE80211_SDATA_IN_DRIVER)) 897ad7e718cSJohannes Berg return NULL; 898ad7e718cSJohannes Berg return &sdata->vif; 899ad7e718cSJohannes Berg } 900ad7e718cSJohannes Berg EXPORT_SYMBOL_GPL(wdev_to_ieee80211_vif); 901ad7e718cSJohannes Berg 902dc5a1ad7SEmmanuel Grumbach struct wireless_dev *ieee80211_vif_to_wdev(struct ieee80211_vif *vif) 903dc5a1ad7SEmmanuel Grumbach { 9046513e98eSJohannes Berg if (!vif) 9056513e98eSJohannes Berg return NULL; 9066513e98eSJohannes Berg 907f30386a8SEmmanuel Grumbach return &vif_to_sdata(vif)->wdev; 908dc5a1ad7SEmmanuel Grumbach } 909dc5a1ad7SEmmanuel Grumbach EXPORT_SYMBOL_GPL(ieee80211_vif_to_wdev); 910dc5a1ad7SEmmanuel Grumbach 91142935ecaSLuis R. Rodriguez /* 91242935ecaSLuis R. Rodriguez * Nothing should have been stuffed into the workqueue during 9134afaff17SEmmanuel Grumbach * the suspend->resume cycle. Since we can't check each caller 9144afaff17SEmmanuel Grumbach * of this function if we are already quiescing / suspended, 9154afaff17SEmmanuel Grumbach * check here and don't WARN since this can actually happen when 9164afaff17SEmmanuel Grumbach * the rx path (for example) is racing against __ieee80211_suspend 9174afaff17SEmmanuel Grumbach * and suspending / quiescing was set after the rx path checked 9184afaff17SEmmanuel Grumbach * them. 91942935ecaSLuis R. Rodriguez */ 92042935ecaSLuis R. Rodriguez static bool ieee80211_can_queue_work(struct ieee80211_local *local) 92142935ecaSLuis R. Rodriguez { 9224afaff17SEmmanuel Grumbach if (local->quiescing || (local->suspended && !local->resuming)) { 9234afaff17SEmmanuel Grumbach pr_warn("queueing ieee80211 work while going to suspend\n"); 92442935ecaSLuis R. Rodriguez return false; 9254afaff17SEmmanuel Grumbach } 92642935ecaSLuis R. Rodriguez 92742935ecaSLuis R. Rodriguez return true; 92842935ecaSLuis R. Rodriguez } 92942935ecaSLuis R. Rodriguez 93042935ecaSLuis R. Rodriguez void ieee80211_queue_work(struct ieee80211_hw *hw, struct work_struct *work) 93142935ecaSLuis R. Rodriguez { 93242935ecaSLuis R. Rodriguez struct ieee80211_local *local = hw_to_local(hw); 93342935ecaSLuis R. Rodriguez 93442935ecaSLuis R. Rodriguez if (!ieee80211_can_queue_work(local)) 93542935ecaSLuis R. Rodriguez return; 93642935ecaSLuis R. Rodriguez 93742935ecaSLuis R. Rodriguez queue_work(local->workqueue, work); 93842935ecaSLuis R. Rodriguez } 93942935ecaSLuis R. Rodriguez EXPORT_SYMBOL(ieee80211_queue_work); 94042935ecaSLuis R. Rodriguez 94142935ecaSLuis R. Rodriguez void ieee80211_queue_delayed_work(struct ieee80211_hw *hw, 94242935ecaSLuis R. Rodriguez struct delayed_work *dwork, 94342935ecaSLuis R. Rodriguez unsigned long delay) 94442935ecaSLuis R. Rodriguez { 94542935ecaSLuis R. Rodriguez struct ieee80211_local *local = hw_to_local(hw); 94642935ecaSLuis R. Rodriguez 94742935ecaSLuis R. Rodriguez if (!ieee80211_can_queue_work(local)) 94842935ecaSLuis R. Rodriguez return; 94942935ecaSLuis R. Rodriguez 95042935ecaSLuis R. Rodriguez queue_delayed_work(local->workqueue, dwork, delay); 95142935ecaSLuis R. Rodriguez } 95242935ecaSLuis R. Rodriguez EXPORT_SYMBOL(ieee80211_queue_delayed_work); 95342935ecaSLuis R. Rodriguez 954e4d005b8SJohannes Berg static void ieee80211_parse_extension_element(u32 *crc, 955e4d005b8SJohannes Berg const struct element *elem, 956e4d005b8SJohannes Berg struct ieee802_11_elems *elems) 957e4d005b8SJohannes Berg { 958e4d005b8SJohannes Berg const void *data = elem->data + 1; 959768c0b19SJohannes Berg u8 len; 960768c0b19SJohannes Berg 961768c0b19SJohannes Berg if (!elem->datalen) 962768c0b19SJohannes Berg return; 963768c0b19SJohannes Berg 964768c0b19SJohannes Berg len = elem->datalen - 1; 965e4d005b8SJohannes Berg 966e4d005b8SJohannes Berg switch (elem->data[0]) { 967e4d005b8SJohannes Berg case WLAN_EID_EXT_HE_MU_EDCA: 968652e8363SJohannes Berg if (len >= sizeof(*elems->mu_edca_param_set)) { 969e4d005b8SJohannes Berg elems->mu_edca_param_set = data; 970e4d005b8SJohannes Berg if (crc) 971e4d005b8SJohannes Berg *crc = crc32_be(*crc, (void *)elem, 972e4d005b8SJohannes Berg elem->datalen + 2); 973e4d005b8SJohannes Berg } 974e4d005b8SJohannes Berg break; 975e4d005b8SJohannes Berg case WLAN_EID_EXT_HE_CAPABILITY: 976bd4e4d62SJohannes Berg if (ieee80211_he_capa_size_ok(data, len)) { 977e4d005b8SJohannes Berg elems->he_cap = data; 978e4d005b8SJohannes Berg elems->he_cap_len = len; 979bd4e4d62SJohannes Berg } 980e4d005b8SJohannes Berg break; 981e4d005b8SJohannes Berg case WLAN_EID_EXT_HE_OPERATION: 982e4d005b8SJohannes Berg if (len >= sizeof(*elems->he_operation) && 9830f7e90faSBrian Norris len >= ieee80211_he_oper_size(data) - 1) { 984660d81daSJohannes Berg if (crc) 985660d81daSJohannes Berg *crc = crc32_be(*crc, (void *)elem, 986660d81daSJohannes Berg elem->datalen + 2); 987e4d005b8SJohannes Berg elems->he_operation = data; 988660d81daSJohannes Berg } 989e4d005b8SJohannes Berg break; 990e4d005b8SJohannes Berg case WLAN_EID_EXT_UORA: 991652e8363SJohannes Berg if (len >= 1) 992e4d005b8SJohannes Berg elems->uora_element = data; 993e4d005b8SJohannes Berg break; 994e4d005b8SJohannes Berg case WLAN_EID_EXT_MAX_CHANNEL_SWITCH_TIME: 995e4d005b8SJohannes Berg if (len == 3) 996e4d005b8SJohannes Berg elems->max_channel_switch_time = data; 997e4d005b8SJohannes Berg break; 998e4d005b8SJohannes Berg case WLAN_EID_EXT_MULTIPLE_BSSID_CONFIGURATION: 999652e8363SJohannes Berg if (len >= sizeof(*elems->mbssid_config_ie)) 1000e4d005b8SJohannes Berg elems->mbssid_config_ie = data; 1001e4d005b8SJohannes Berg break; 1002e4d005b8SJohannes Berg case WLAN_EID_EXT_HE_SPR: 1003e4d005b8SJohannes Berg if (len >= sizeof(*elems->he_spr) && 1004e4d005b8SJohannes Berg len >= ieee80211_he_spr_size(data)) 1005e4d005b8SJohannes Berg elems->he_spr = data; 1006e4d005b8SJohannes Berg break; 1007a6cf28e0SRajkumar Manoharan case WLAN_EID_EXT_HE_6GHZ_CAPA: 1008652e8363SJohannes Berg if (len >= sizeof(*elems->he_6ghz_capa)) 1009a6cf28e0SRajkumar Manoharan elems->he_6ghz_capa = data; 1010a6cf28e0SRajkumar Manoharan break; 1011f0e6bea8SIlan Peer case WLAN_EID_EXT_EHT_CAPABILITY: 1012f0e6bea8SIlan Peer if (ieee80211_eht_capa_size_ok(elems->he_cap, 1013f0e6bea8SIlan Peer data, len)) { 1014f0e6bea8SIlan Peer elems->eht_cap = data; 1015f0e6bea8SIlan Peer elems->eht_cap_len = len; 1016f0e6bea8SIlan Peer } 1017f0e6bea8SIlan Peer break; 1018f0e6bea8SIlan Peer case WLAN_EID_EXT_EHT_OPERATION: 1019f0e6bea8SIlan Peer if (ieee80211_eht_oper_size_ok(data, len)) 1020f0e6bea8SIlan Peer elems->eht_operation = data; 1021f0e6bea8SIlan Peer break; 1022e4d005b8SJohannes Berg } 1023e4d005b8SJohannes Berg } 1024e4d005b8SJohannes Berg 102578ac51f8SSara Sharon static u32 102678ac51f8SSara Sharon _ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action, 1027dd76986bSJohannes Berg struct ieee802_11_elems *elems, 1028671042a4SSara Sharon u64 filter, u32 crc, 1029671042a4SSara Sharon const struct element *check_inherit) 1030dd76986bSJohannes Berg { 1031671042a4SSara Sharon const struct element *elem; 1032dd76986bSJohannes Berg bool calc_crc = filter != 0; 1033fcff4f10SPaul Stewart DECLARE_BITMAP(seen_elems, 256); 1034b2e506bfSJohannes Berg const u8 *ie; 1035dd76986bSJohannes Berg 1036fcff4f10SPaul Stewart bitmap_zero(seen_elems, 256); 1037dd76986bSJohannes Berg 1038c17e28d1SJohannes Berg for_each_element(elem, start, len) { 1039fcff4f10SPaul Stewart bool elem_parse_failed; 1040c17e28d1SJohannes Berg u8 id = elem->id; 1041c17e28d1SJohannes Berg u8 elen = elem->datalen; 1042c17e28d1SJohannes Berg const u8 *pos = elem->data; 1043fcff4f10SPaul Stewart 1044671042a4SSara Sharon if (check_inherit && 1045671042a4SSara Sharon !cfg80211_is_element_inherited(elem, 1046671042a4SSara Sharon check_inherit)) 1047671042a4SSara Sharon continue; 1048671042a4SSara Sharon 10499690fb16SJohannes Berg switch (id) { 10509690fb16SJohannes Berg case WLAN_EID_SSID: 10519690fb16SJohannes Berg case WLAN_EID_SUPP_RATES: 10529690fb16SJohannes Berg case WLAN_EID_FH_PARAMS: 10539690fb16SJohannes Berg case WLAN_EID_DS_PARAMS: 10549690fb16SJohannes Berg case WLAN_EID_CF_PARAMS: 10559690fb16SJohannes Berg case WLAN_EID_TIM: 10569690fb16SJohannes Berg case WLAN_EID_IBSS_PARAMS: 10579690fb16SJohannes Berg case WLAN_EID_CHALLENGE: 10589690fb16SJohannes Berg case WLAN_EID_RSN: 10599690fb16SJohannes Berg case WLAN_EID_ERP_INFO: 10609690fb16SJohannes Berg case WLAN_EID_EXT_SUPP_RATES: 10619690fb16SJohannes Berg case WLAN_EID_HT_CAPABILITY: 10629690fb16SJohannes Berg case WLAN_EID_HT_OPERATION: 10639690fb16SJohannes Berg case WLAN_EID_VHT_CAPABILITY: 10649690fb16SJohannes Berg case WLAN_EID_VHT_OPERATION: 10659690fb16SJohannes Berg case WLAN_EID_MESH_ID: 10669690fb16SJohannes Berg case WLAN_EID_MESH_CONFIG: 10679690fb16SJohannes Berg case WLAN_EID_PEER_MGMT: 10689690fb16SJohannes Berg case WLAN_EID_PREQ: 10699690fb16SJohannes Berg case WLAN_EID_PREP: 10709690fb16SJohannes Berg case WLAN_EID_PERR: 10719690fb16SJohannes Berg case WLAN_EID_RANN: 10729690fb16SJohannes Berg case WLAN_EID_CHANNEL_SWITCH: 10739690fb16SJohannes Berg case WLAN_EID_EXT_CHANSWITCH_ANN: 10749690fb16SJohannes Berg case WLAN_EID_COUNTRY: 10759690fb16SJohannes Berg case WLAN_EID_PWR_CONSTRAINT: 10769690fb16SJohannes Berg case WLAN_EID_TIMEOUT_INTERVAL: 107785220d71SJohannes Berg case WLAN_EID_SECONDARY_CHANNEL_OFFSET: 1078b2e506bfSJohannes Berg case WLAN_EID_WIDE_BW_CHANNEL_SWITCH: 10798f2535b9SChun-Yeow Yeoh case WLAN_EID_CHAN_SWITCH_PARAM: 10809041c1faSArik Nemtsov case WLAN_EID_EXT_CAPABILITY: 108153837584SArik Nemtsov case WLAN_EID_CHAN_SWITCH_TIMING: 108253837584SArik Nemtsov case WLAN_EID_LINK_ID: 1083e38a017bSAvraham Stern case WLAN_EID_BSS_MAX_IDLE_PERIOD: 1084c0058df7SShaul Triebitz case WLAN_EID_RSNX: 1085cd418ba6SThomas Pedersen case WLAN_EID_S1G_BCN_COMPAT: 1086cd418ba6SThomas Pedersen case WLAN_EID_S1G_CAPABILITIES: 1087cd418ba6SThomas Pedersen case WLAN_EID_S1G_OPERATION: 10881d00ce80SThomas Pedersen case WLAN_EID_AID_RESPONSE: 1089cd418ba6SThomas Pedersen case WLAN_EID_S1G_SHORT_BCN_INTERVAL: 1090b2e506bfSJohannes Berg /* 1091b2e506bfSJohannes Berg * not listing WLAN_EID_CHANNEL_SWITCH_WRAPPER -- it seems possible 1092b2e506bfSJohannes Berg * that if the content gets bigger it might be needed more than once 1093b2e506bfSJohannes Berg */ 10949690fb16SJohannes Berg if (test_bit(id, seen_elems)) { 1095fcff4f10SPaul Stewart elems->parse_error = true; 1096fcff4f10SPaul Stewart continue; 1097fcff4f10SPaul Stewart } 10989690fb16SJohannes Berg break; 10999690fb16SJohannes Berg } 1100dd76986bSJohannes Berg 1101dd76986bSJohannes Berg if (calc_crc && id < 64 && (filter & (1ULL << id))) 1102dd76986bSJohannes Berg crc = crc32_be(crc, pos - 2, elen + 2); 1103dd76986bSJohannes Berg 1104fcff4f10SPaul Stewart elem_parse_failed = false; 1105fcff4f10SPaul Stewart 1106dd76986bSJohannes Berg switch (id) { 110753837584SArik Nemtsov case WLAN_EID_LINK_ID: 1108652e8363SJohannes Berg if (elen + 2 < sizeof(struct ieee80211_tdls_lnkie)) { 110953837584SArik Nemtsov elem_parse_failed = true; 111053837584SArik Nemtsov break; 111153837584SArik Nemtsov } 111253837584SArik Nemtsov elems->lnk_id = (void *)(pos - 2); 111353837584SArik Nemtsov break; 111453837584SArik Nemtsov case WLAN_EID_CHAN_SWITCH_TIMING: 1115652e8363SJohannes Berg if (elen < sizeof(struct ieee80211_ch_switch_timing)) { 111653837584SArik Nemtsov elem_parse_failed = true; 111753837584SArik Nemtsov break; 111853837584SArik Nemtsov } 111953837584SArik Nemtsov elems->ch_sw_timing = (void *)pos; 112053837584SArik Nemtsov break; 11219041c1faSArik Nemtsov case WLAN_EID_EXT_CAPABILITY: 11229041c1faSArik Nemtsov elems->ext_capab = pos; 11239041c1faSArik Nemtsov elems->ext_capab_len = elen; 11249041c1faSArik Nemtsov break; 1125dd76986bSJohannes Berg case WLAN_EID_SSID: 1126dd76986bSJohannes Berg elems->ssid = pos; 1127dd76986bSJohannes Berg elems->ssid_len = elen; 1128dd76986bSJohannes Berg break; 1129dd76986bSJohannes Berg case WLAN_EID_SUPP_RATES: 1130dd76986bSJohannes Berg elems->supp_rates = pos; 1131dd76986bSJohannes Berg elems->supp_rates_len = elen; 1132dd76986bSJohannes Berg break; 1133dd76986bSJohannes Berg case WLAN_EID_DS_PARAMS: 11341cd8e88eSJohannes Berg if (elen >= 1) 1135dd76986bSJohannes Berg elems->ds_params = pos; 11361cd8e88eSJohannes Berg else 11371cd8e88eSJohannes Berg elem_parse_failed = true; 1138dd76986bSJohannes Berg break; 1139dd76986bSJohannes Berg case WLAN_EID_TIM: 1140dd76986bSJohannes Berg if (elen >= sizeof(struct ieee80211_tim_ie)) { 1141dd76986bSJohannes Berg elems->tim = (void *)pos; 1142dd76986bSJohannes Berg elems->tim_len = elen; 1143fcff4f10SPaul Stewart } else 1144fcff4f10SPaul Stewart elem_parse_failed = true; 1145dd76986bSJohannes Berg break; 1146dd76986bSJohannes Berg case WLAN_EID_VENDOR_SPECIFIC: 1147dd76986bSJohannes Berg if (elen >= 4 && pos[0] == 0x00 && pos[1] == 0x50 && 1148dd76986bSJohannes Berg pos[2] == 0xf2) { 1149dd76986bSJohannes Berg /* Microsoft OUI (00:50:F2) */ 1150dd76986bSJohannes Berg 1151dd76986bSJohannes Berg if (calc_crc) 1152dd76986bSJohannes Berg crc = crc32_be(crc, pos - 2, elen + 2); 1153dd76986bSJohannes Berg 1154441a33baSJohannes Berg if (elen >= 5 && pos[3] == 2) { 1155dd76986bSJohannes Berg /* OUI Type 2 - WMM IE */ 1156dd76986bSJohannes Berg if (pos[4] == 0) { 1157dd76986bSJohannes Berg elems->wmm_info = pos; 1158dd76986bSJohannes Berg elems->wmm_info_len = elen; 1159dd76986bSJohannes Berg } else if (pos[4] == 1) { 1160dd76986bSJohannes Berg elems->wmm_param = pos; 1161dd76986bSJohannes Berg elems->wmm_param_len = elen; 1162dd76986bSJohannes Berg } 1163dd76986bSJohannes Berg } 1164dd76986bSJohannes Berg } 1165dd76986bSJohannes Berg break; 1166dd76986bSJohannes Berg case WLAN_EID_RSN: 1167dd76986bSJohannes Berg elems->rsn = pos; 1168dd76986bSJohannes Berg elems->rsn_len = elen; 1169dd76986bSJohannes Berg break; 1170dd76986bSJohannes Berg case WLAN_EID_ERP_INFO: 11711946bed9SJohannes Berg if (elen >= 1) 1172dd76986bSJohannes Berg elems->erp_info = pos; 11731946bed9SJohannes Berg else 11741946bed9SJohannes Berg elem_parse_failed = true; 1175dd76986bSJohannes Berg break; 1176dd76986bSJohannes Berg case WLAN_EID_EXT_SUPP_RATES: 1177dd76986bSJohannes Berg elems->ext_supp_rates = pos; 1178dd76986bSJohannes Berg elems->ext_supp_rates_len = elen; 1179dd76986bSJohannes Berg break; 1180dd76986bSJohannes Berg case WLAN_EID_HT_CAPABILITY: 1181dd76986bSJohannes Berg if (elen >= sizeof(struct ieee80211_ht_cap)) 1182dd76986bSJohannes Berg elems->ht_cap_elem = (void *)pos; 1183fcff4f10SPaul Stewart else 1184fcff4f10SPaul Stewart elem_parse_failed = true; 1185dd76986bSJohannes Berg break; 1186074d46d1SJohannes Berg case WLAN_EID_HT_OPERATION: 1187074d46d1SJohannes Berg if (elen >= sizeof(struct ieee80211_ht_operation)) 1188074d46d1SJohannes Berg elems->ht_operation = (void *)pos; 1189fcff4f10SPaul Stewart else 1190fcff4f10SPaul Stewart elem_parse_failed = true; 1191dd76986bSJohannes Berg break; 1192818255eaSMahesh Palivela case WLAN_EID_VHT_CAPABILITY: 1193818255eaSMahesh Palivela if (elen >= sizeof(struct ieee80211_vht_cap)) 1194818255eaSMahesh Palivela elems->vht_cap_elem = (void *)pos; 1195818255eaSMahesh Palivela else 1196818255eaSMahesh Palivela elem_parse_failed = true; 1197818255eaSMahesh Palivela break; 1198818255eaSMahesh Palivela case WLAN_EID_VHT_OPERATION: 1199a04564c9SJohannes Berg if (elen >= sizeof(struct ieee80211_vht_operation)) { 1200818255eaSMahesh Palivela elems->vht_operation = (void *)pos; 1201a04564c9SJohannes Berg if (calc_crc) 1202a04564c9SJohannes Berg crc = crc32_be(crc, pos - 2, elen + 2); 1203a04564c9SJohannes Berg break; 1204a04564c9SJohannes Berg } 1205818255eaSMahesh Palivela elem_parse_failed = true; 1206818255eaSMahesh Palivela break; 1207bee7f586SJohannes Berg case WLAN_EID_OPMODE_NOTIF: 1208a04564c9SJohannes Berg if (elen > 0) { 1209bee7f586SJohannes Berg elems->opmode_notif = pos; 1210a04564c9SJohannes Berg if (calc_crc) 1211a04564c9SJohannes Berg crc = crc32_be(crc, pos - 2, elen + 2); 1212a04564c9SJohannes Berg break; 1213a04564c9SJohannes Berg } 1214bee7f586SJohannes Berg elem_parse_failed = true; 1215bee7f586SJohannes Berg break; 1216dd76986bSJohannes Berg case WLAN_EID_MESH_ID: 1217dd76986bSJohannes Berg elems->mesh_id = pos; 1218dd76986bSJohannes Berg elems->mesh_id_len = elen; 1219dd76986bSJohannes Berg break; 1220dd76986bSJohannes Berg case WLAN_EID_MESH_CONFIG: 1221dd76986bSJohannes Berg if (elen >= sizeof(struct ieee80211_meshconf_ie)) 1222dd76986bSJohannes Berg elems->mesh_config = (void *)pos; 1223fcff4f10SPaul Stewart else 1224fcff4f10SPaul Stewart elem_parse_failed = true; 1225dd76986bSJohannes Berg break; 1226dd76986bSJohannes Berg case WLAN_EID_PEER_MGMT: 1227dd76986bSJohannes Berg elems->peering = pos; 1228dd76986bSJohannes Berg elems->peering_len = elen; 1229dd76986bSJohannes Berg break; 12303f52b7e3SMarco Porsch case WLAN_EID_MESH_AWAKE_WINDOW: 12313f52b7e3SMarco Porsch if (elen >= 2) 12323f52b7e3SMarco Porsch elems->awake_window = (void *)pos; 12333f52b7e3SMarco Porsch break; 1234dd76986bSJohannes Berg case WLAN_EID_PREQ: 1235dd76986bSJohannes Berg elems->preq = pos; 1236dd76986bSJohannes Berg elems->preq_len = elen; 1237dd76986bSJohannes Berg break; 1238dd76986bSJohannes Berg case WLAN_EID_PREP: 1239dd76986bSJohannes Berg elems->prep = pos; 1240dd76986bSJohannes Berg elems->prep_len = elen; 1241dd76986bSJohannes Berg break; 1242dd76986bSJohannes Berg case WLAN_EID_PERR: 1243dd76986bSJohannes Berg elems->perr = pos; 1244dd76986bSJohannes Berg elems->perr_len = elen; 1245dd76986bSJohannes Berg break; 1246dd76986bSJohannes Berg case WLAN_EID_RANN: 1247dd76986bSJohannes Berg if (elen >= sizeof(struct ieee80211_rann_ie)) 1248dd76986bSJohannes Berg elems->rann = (void *)pos; 1249fcff4f10SPaul Stewart else 1250fcff4f10SPaul Stewart elem_parse_failed = true; 1251dd76986bSJohannes Berg break; 1252dd76986bSJohannes Berg case WLAN_EID_CHANNEL_SWITCH: 12535bc1420bSJohannes Berg if (elen != sizeof(struct ieee80211_channel_sw_ie)) { 12545bc1420bSJohannes Berg elem_parse_failed = true; 12555bc1420bSJohannes Berg break; 12565bc1420bSJohannes Berg } 12575bc1420bSJohannes Berg elems->ch_switch_ie = (void *)pos; 1258dd76986bSJohannes Berg break; 1259b4f286a1SJohannes Berg case WLAN_EID_EXT_CHANSWITCH_ANN: 1260b4f286a1SJohannes Berg if (elen != sizeof(struct ieee80211_ext_chansw_ie)) { 1261b4f286a1SJohannes Berg elem_parse_failed = true; 1262b4f286a1SJohannes Berg break; 1263b4f286a1SJohannes Berg } 1264b4f286a1SJohannes Berg elems->ext_chansw_ie = (void *)pos; 1265b4f286a1SJohannes Berg break; 126685220d71SJohannes Berg case WLAN_EID_SECONDARY_CHANNEL_OFFSET: 126785220d71SJohannes Berg if (elen != sizeof(struct ieee80211_sec_chan_offs_ie)) { 126885220d71SJohannes Berg elem_parse_failed = true; 126985220d71SJohannes Berg break; 127085220d71SJohannes Berg } 127185220d71SJohannes Berg elems->sec_chan_offs = (void *)pos; 127285220d71SJohannes Berg break; 12738f2535b9SChun-Yeow Yeoh case WLAN_EID_CHAN_SWITCH_PARAM: 1274652e8363SJohannes Berg if (elen < 12758f2535b9SChun-Yeow Yeoh sizeof(*elems->mesh_chansw_params_ie)) { 12768f2535b9SChun-Yeow Yeoh elem_parse_failed = true; 12778f2535b9SChun-Yeow Yeoh break; 12788f2535b9SChun-Yeow Yeoh } 12798f2535b9SChun-Yeow Yeoh elems->mesh_chansw_params_ie = (void *)pos; 12808f2535b9SChun-Yeow Yeoh break; 1281b2e506bfSJohannes Berg case WLAN_EID_WIDE_BW_CHANNEL_SWITCH: 1282b2e506bfSJohannes Berg if (!action || 1283652e8363SJohannes Berg elen < sizeof(*elems->wide_bw_chansw_ie)) { 1284b2e506bfSJohannes Berg elem_parse_failed = true; 1285b2e506bfSJohannes Berg break; 1286b2e506bfSJohannes Berg } 1287b2e506bfSJohannes Berg elems->wide_bw_chansw_ie = (void *)pos; 1288b2e506bfSJohannes Berg break; 1289b2e506bfSJohannes Berg case WLAN_EID_CHANNEL_SWITCH_WRAPPER: 1290b2e506bfSJohannes Berg if (action) { 1291b2e506bfSJohannes Berg elem_parse_failed = true; 1292b2e506bfSJohannes Berg break; 1293b2e506bfSJohannes Berg } 1294b2e506bfSJohannes Berg /* 1295b2e506bfSJohannes Berg * This is a bit tricky, but as we only care about 1296b2e506bfSJohannes Berg * the wide bandwidth channel switch element, so 1297b2e506bfSJohannes Berg * just parse it out manually. 1298b2e506bfSJohannes Berg */ 1299b2e506bfSJohannes Berg ie = cfg80211_find_ie(WLAN_EID_WIDE_BW_CHANNEL_SWITCH, 1300b2e506bfSJohannes Berg pos, elen); 1301b2e506bfSJohannes Berg if (ie) { 1302652e8363SJohannes Berg if (ie[1] >= sizeof(*elems->wide_bw_chansw_ie)) 1303b2e506bfSJohannes Berg elems->wide_bw_chansw_ie = 1304b2e506bfSJohannes Berg (void *)(ie + 2); 1305b2e506bfSJohannes Berg else 1306b2e506bfSJohannes Berg elem_parse_failed = true; 1307b2e506bfSJohannes Berg } 1308b2e506bfSJohannes Berg break; 1309dd76986bSJohannes Berg case WLAN_EID_COUNTRY: 1310dd76986bSJohannes Berg elems->country_elem = pos; 1311dd76986bSJohannes Berg elems->country_elem_len = elen; 1312dd76986bSJohannes Berg break; 1313dd76986bSJohannes Berg case WLAN_EID_PWR_CONSTRAINT: 1314761a48d2SJohannes Berg if (elen != 1) { 1315761a48d2SJohannes Berg elem_parse_failed = true; 1316761a48d2SJohannes Berg break; 1317761a48d2SJohannes Berg } 1318dd76986bSJohannes Berg elems->pwr_constr_elem = pos; 1319dd76986bSJohannes Berg break; 1320c8d65917SSteinar H. Gunderson case WLAN_EID_CISCO_VENDOR_SPECIFIC: 1321c8d65917SSteinar H. Gunderson /* Lots of different options exist, but we only care 1322c8d65917SSteinar H. Gunderson * about the Dynamic Transmit Power Control element. 1323c8d65917SSteinar H. Gunderson * First check for the Cisco OUI, then for the DTPC 1324c8d65917SSteinar H. Gunderson * tag (0x00). 1325c8d65917SSteinar H. Gunderson */ 1326c8d65917SSteinar H. Gunderson if (elen < 4) { 1327c8d65917SSteinar H. Gunderson elem_parse_failed = true; 1328c8d65917SSteinar H. Gunderson break; 1329c8d65917SSteinar H. Gunderson } 1330c8d65917SSteinar H. Gunderson 1331c8d65917SSteinar H. Gunderson if (pos[0] != 0x00 || pos[1] != 0x40 || 1332c8d65917SSteinar H. Gunderson pos[2] != 0x96 || pos[3] != 0x00) 1333c8d65917SSteinar H. Gunderson break; 1334c8d65917SSteinar H. Gunderson 1335c8d65917SSteinar H. Gunderson if (elen != 6) { 1336c8d65917SSteinar H. Gunderson elem_parse_failed = true; 1337c8d65917SSteinar H. Gunderson break; 1338c8d65917SSteinar H. Gunderson } 1339c8d65917SSteinar H. Gunderson 1340c8d65917SSteinar H. Gunderson if (calc_crc) 1341c8d65917SSteinar H. Gunderson crc = crc32_be(crc, pos - 2, elen + 2); 1342c8d65917SSteinar H. Gunderson 1343c8d65917SSteinar H. Gunderson elems->cisco_dtpc_elem = pos; 1344c8d65917SSteinar H. Gunderson break; 13452aa485e1SJohn Crispin case WLAN_EID_ADDBA_EXT: 1346652e8363SJohannes Berg if (elen < sizeof(struct ieee80211_addba_ext_ie)) { 13472aa485e1SJohn Crispin elem_parse_failed = true; 13482aa485e1SJohn Crispin break; 13492aa485e1SJohn Crispin } 13502aa485e1SJohn Crispin elems->addba_ext_ie = (void *)pos; 13512aa485e1SJohn Crispin break; 1352dd76986bSJohannes Berg case WLAN_EID_TIMEOUT_INTERVAL: 135379ba1d89SJohannes Berg if (elen >= sizeof(struct ieee80211_timeout_interval_ie)) 135479ba1d89SJohannes Berg elems->timeout_int = (void *)pos; 135579ba1d89SJohannes Berg else 135679ba1d89SJohannes Berg elem_parse_failed = true; 1357dd76986bSJohannes Berg break; 1358e38a017bSAvraham Stern case WLAN_EID_BSS_MAX_IDLE_PERIOD: 1359e38a017bSAvraham Stern if (elen >= sizeof(*elems->max_idle_period_ie)) 1360e38a017bSAvraham Stern elems->max_idle_period_ie = (void *)pos; 1361e38a017bSAvraham Stern break; 1362c0058df7SShaul Triebitz case WLAN_EID_RSNX: 1363c0058df7SShaul Triebitz elems->rsnx = pos; 1364c0058df7SShaul Triebitz elems->rsnx_len = elen; 1365c0058df7SShaul Triebitz break; 1366b0345850SWen Gong case WLAN_EID_TX_POWER_ENVELOPE: 1367b0345850SWen Gong if (elen < 1 || 1368b0345850SWen Gong elen > sizeof(struct ieee80211_tx_pwr_env)) 1369b0345850SWen Gong break; 1370b0345850SWen Gong 1371b0345850SWen Gong if (elems->tx_pwr_env_num >= ARRAY_SIZE(elems->tx_pwr_env)) 1372b0345850SWen Gong break; 1373b0345850SWen Gong 1374b0345850SWen Gong elems->tx_pwr_env[elems->tx_pwr_env_num] = (void *)pos; 1375b0345850SWen Gong elems->tx_pwr_env_len[elems->tx_pwr_env_num] = elen; 1376b0345850SWen Gong elems->tx_pwr_env_num++; 1377b0345850SWen Gong break; 137841cbb0f5SLuca Coelho case WLAN_EID_EXTENSION: 1379e4d005b8SJohannes Berg ieee80211_parse_extension_element(calc_crc ? 1380e4d005b8SJohannes Berg &crc : NULL, 1381e4d005b8SJohannes Berg elem, elems); 138241cbb0f5SLuca Coelho break; 1383cd418ba6SThomas Pedersen case WLAN_EID_S1G_CAPABILITIES: 1384652e8363SJohannes Berg if (elen >= sizeof(*elems->s1g_capab)) 1385cd418ba6SThomas Pedersen elems->s1g_capab = (void *)pos; 1386cd418ba6SThomas Pedersen else 1387cd418ba6SThomas Pedersen elem_parse_failed = true; 1388cd418ba6SThomas Pedersen break; 1389cd418ba6SThomas Pedersen case WLAN_EID_S1G_OPERATION: 1390cd418ba6SThomas Pedersen if (elen == sizeof(*elems->s1g_oper)) 1391cd418ba6SThomas Pedersen elems->s1g_oper = (void *)pos; 1392cd418ba6SThomas Pedersen else 1393cd418ba6SThomas Pedersen elem_parse_failed = true; 1394cd418ba6SThomas Pedersen break; 1395cd418ba6SThomas Pedersen case WLAN_EID_S1G_BCN_COMPAT: 1396cd418ba6SThomas Pedersen if (elen == sizeof(*elems->s1g_bcn_compat)) 1397cd418ba6SThomas Pedersen elems->s1g_bcn_compat = (void *)pos; 1398cd418ba6SThomas Pedersen else 1399cd418ba6SThomas Pedersen elem_parse_failed = true; 1400cd418ba6SThomas Pedersen break; 14011d00ce80SThomas Pedersen case WLAN_EID_AID_RESPONSE: 14021d00ce80SThomas Pedersen if (elen == sizeof(struct ieee80211_aid_response_ie)) 14031d00ce80SThomas Pedersen elems->aid_resp = (void *)pos; 14041d00ce80SThomas Pedersen else 14051d00ce80SThomas Pedersen elem_parse_failed = true; 14061d00ce80SThomas Pedersen break; 1407dd76986bSJohannes Berg default: 1408dd76986bSJohannes Berg break; 1409dd76986bSJohannes Berg } 1410dd76986bSJohannes Berg 1411fcff4f10SPaul Stewart if (elem_parse_failed) 1412fcff4f10SPaul Stewart elems->parse_error = true; 1413fcff4f10SPaul Stewart else 14145df45690SJohannes Berg __set_bit(id, seen_elems); 1415dd76986bSJohannes Berg } 1416dd76986bSJohannes Berg 1417c17e28d1SJohannes Berg if (!for_each_element_completed(elem, start, len)) 1418fcff4f10SPaul Stewart elems->parse_error = true; 1419fcff4f10SPaul Stewart 1420dd76986bSJohannes Berg return crc; 1421dd76986bSJohannes Berg } 1422dd76986bSJohannes Berg 14235023b14cSSara Sharon static size_t ieee802_11_find_bssid_profile(const u8 *start, size_t len, 1424671042a4SSara Sharon struct ieee802_11_elems *elems, 14255d24828dSJohannes Berg const u8 *transmitter_bssid, 14265d24828dSJohannes Berg const u8 *bss_bssid, 14275809a5d5SDan Carpenter u8 *nontransmitted_profile) 1428671042a4SSara Sharon { 1429671042a4SSara Sharon const struct element *elem, *sub; 14305023b14cSSara Sharon size_t profile_len = 0; 14315023b14cSSara Sharon bool found = false; 1432671042a4SSara Sharon 1433671042a4SSara Sharon if (!bss_bssid || !transmitter_bssid) 14345023b14cSSara Sharon return profile_len; 1435671042a4SSara Sharon 1436671042a4SSara Sharon for_each_element_id(elem, WLAN_EID_MULTIPLE_BSSID, start, len) { 1437671042a4SSara Sharon if (elem->datalen < 2) 1438671042a4SSara Sharon continue; 1439671042a4SSara Sharon 1440671042a4SSara Sharon for_each_element(sub, elem->data + 1, elem->datalen - 1) { 1441671042a4SSara Sharon u8 new_bssid[ETH_ALEN]; 1442671042a4SSara Sharon const u8 *index; 1443671042a4SSara Sharon 1444671042a4SSara Sharon if (sub->id != 0 || sub->datalen < 4) { 1445671042a4SSara Sharon /* not a valid BSS profile */ 1446671042a4SSara Sharon continue; 1447671042a4SSara Sharon } 1448671042a4SSara Sharon 1449671042a4SSara Sharon if (sub->data[0] != WLAN_EID_NON_TX_BSSID_CAP || 1450671042a4SSara Sharon sub->data[1] != 2) { 1451671042a4SSara Sharon /* The first element of the 1452671042a4SSara Sharon * Nontransmitted BSSID Profile is not 1453671042a4SSara Sharon * the Nontransmitted BSSID Capability 1454671042a4SSara Sharon * element. 1455671042a4SSara Sharon */ 1456671042a4SSara Sharon continue; 1457671042a4SSara Sharon } 1458671042a4SSara Sharon 14595809a5d5SDan Carpenter memset(nontransmitted_profile, 0, len); 14605023b14cSSara Sharon profile_len = cfg80211_merge_profile(start, len, 14615023b14cSSara Sharon elem, 14625023b14cSSara Sharon sub, 14635023b14cSSara Sharon nontransmitted_profile, 14645023b14cSSara Sharon len); 14655023b14cSSara Sharon 1466671042a4SSara Sharon /* found a Nontransmitted BSSID Profile */ 1467671042a4SSara Sharon index = cfg80211_find_ie(WLAN_EID_MULTI_BSSID_IDX, 14685809a5d5SDan Carpenter nontransmitted_profile, 14695023b14cSSara Sharon profile_len); 1470671042a4SSara Sharon if (!index || index[1] < 1 || index[2] == 0) { 1471671042a4SSara Sharon /* Invalid MBSSID Index element */ 1472671042a4SSara Sharon continue; 1473671042a4SSara Sharon } 1474671042a4SSara Sharon 1475671042a4SSara Sharon cfg80211_gen_new_bssid(transmitter_bssid, 1476671042a4SSara Sharon elem->data[0], 1477671042a4SSara Sharon index[2], 1478671042a4SSara Sharon new_bssid); 1479671042a4SSara Sharon if (ether_addr_equal(new_bssid, bss_bssid)) { 14805023b14cSSara Sharon found = true; 1481671042a4SSara Sharon elems->bssid_index_len = index[1]; 1482671042a4SSara Sharon elems->bssid_index = (void *)&index[2]; 1483671042a4SSara Sharon break; 1484671042a4SSara Sharon } 1485671042a4SSara Sharon } 1486671042a4SSara Sharon } 14875023b14cSSara Sharon 14885023b14cSSara Sharon return found ? profile_len : 0; 1489671042a4SSara Sharon } 1490671042a4SSara Sharon 14915d24828dSJohannes Berg struct ieee802_11_elems *ieee802_11_parse_elems_crc(const u8 *start, size_t len, 14925d24828dSJohannes Berg bool action, u64 filter, 14935d24828dSJohannes Berg u32 crc, 14945d24828dSJohannes Berg const u8 *transmitter_bssid, 14955d24828dSJohannes Berg const u8 *bss_bssid) 149678ac51f8SSara Sharon { 14975d24828dSJohannes Berg struct ieee802_11_elems *elems; 1498671042a4SSara Sharon const struct element *non_inherit = NULL; 14995023b14cSSara Sharon u8 *nontransmitted_profile; 15005023b14cSSara Sharon int nontransmitted_profile_len = 0; 1501671042a4SSara Sharon 15025d24828dSJohannes Berg elems = kzalloc(sizeof(*elems), GFP_ATOMIC); 15035d24828dSJohannes Berg if (!elems) 15045d24828dSJohannes Berg return NULL; 150578ac51f8SSara Sharon elems->ie_start = start; 150678ac51f8SSara Sharon elems->total_len = len; 150778ac51f8SSara Sharon 15085023b14cSSara Sharon nontransmitted_profile = kmalloc(len, GFP_ATOMIC); 15095023b14cSSara Sharon if (nontransmitted_profile) { 15105023b14cSSara Sharon nontransmitted_profile_len = 15115023b14cSSara Sharon ieee802_11_find_bssid_profile(start, len, elems, 15125023b14cSSara Sharon transmitter_bssid, 15135023b14cSSara Sharon bss_bssid, 15145809a5d5SDan Carpenter nontransmitted_profile); 1515671042a4SSara Sharon non_inherit = 1516671042a4SSara Sharon cfg80211_find_ext_elem(WLAN_EID_EXT_NON_INHERITANCE, 15175023b14cSSara Sharon nontransmitted_profile, 15185023b14cSSara Sharon nontransmitted_profile_len); 15195023b14cSSara Sharon } 1520671042a4SSara Sharon 152178ac51f8SSara Sharon crc = _ieee802_11_parse_elems_crc(start, len, action, elems, filter, 1522671042a4SSara Sharon crc, non_inherit); 152378ac51f8SSara Sharon 152478ac51f8SSara Sharon /* Override with nontransmitted profile, if found */ 15255023b14cSSara Sharon if (nontransmitted_profile_len) 15265023b14cSSara Sharon _ieee802_11_parse_elems_crc(nontransmitted_profile, 15275023b14cSSara Sharon nontransmitted_profile_len, 1528671042a4SSara Sharon action, elems, 0, 0, NULL); 152978ac51f8SSara Sharon 153078ac51f8SSara Sharon if (elems->tim && !elems->parse_error) { 153178ac51f8SSara Sharon const struct ieee80211_tim_ie *tim_ie = elems->tim; 153278ac51f8SSara Sharon 153378ac51f8SSara Sharon elems->dtim_period = tim_ie->dtim_period; 153478ac51f8SSara Sharon elems->dtim_count = tim_ie->dtim_count; 153578ac51f8SSara Sharon } 153678ac51f8SSara Sharon 153778ac51f8SSara Sharon /* Override DTIM period and count if needed */ 153878ac51f8SSara Sharon if (elems->bssid_index && 153978ac51f8SSara Sharon elems->bssid_index_len >= 154078ac51f8SSara Sharon offsetofend(struct ieee80211_bssid_index, dtim_period)) 154178ac51f8SSara Sharon elems->dtim_period = elems->bssid_index->dtim_period; 154278ac51f8SSara Sharon 154378ac51f8SSara Sharon if (elems->bssid_index && 154478ac51f8SSara Sharon elems->bssid_index_len >= 154578ac51f8SSara Sharon offsetofend(struct ieee80211_bssid_index, dtim_count)) 154678ac51f8SSara Sharon elems->dtim_count = elems->bssid_index->dtim_count; 154778ac51f8SSara Sharon 15485023b14cSSara Sharon kfree(nontransmitted_profile); 15495023b14cSSara Sharon 1550c6e37ed4SJohannes Berg elems->crc = crc; 15515d24828dSJohannes Berg 15525d24828dSJohannes Berg return elems; 155378ac51f8SSara Sharon } 155478ac51f8SSara Sharon 1555e552af05SHaim Dreyfuss void ieee80211_regulatory_limit_wmm_params(struct ieee80211_sub_if_data *sdata, 1556e552af05SHaim Dreyfuss struct ieee80211_tx_queue_params 1557e552af05SHaim Dreyfuss *qparam, int ac) 1558e552af05SHaim Dreyfuss { 1559e552af05SHaim Dreyfuss struct ieee80211_chanctx_conf *chanctx_conf; 1560e552af05SHaim Dreyfuss const struct ieee80211_reg_rule *rrule; 156138cb87eeSStanislaw Gruszka const struct ieee80211_wmm_ac *wmm_ac; 1562e552af05SHaim Dreyfuss u16 center_freq = 0; 1563e552af05SHaim Dreyfuss 1564e552af05SHaim Dreyfuss if (sdata->vif.type != NL80211_IFTYPE_AP && 1565e552af05SHaim Dreyfuss sdata->vif.type != NL80211_IFTYPE_STATION) 1566e552af05SHaim Dreyfuss return; 1567e552af05SHaim Dreyfuss 1568e552af05SHaim Dreyfuss rcu_read_lock(); 1569e552af05SHaim Dreyfuss chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 1570e552af05SHaim Dreyfuss if (chanctx_conf) 1571e552af05SHaim Dreyfuss center_freq = chanctx_conf->def.chan->center_freq; 1572e552af05SHaim Dreyfuss 1573e552af05SHaim Dreyfuss if (!center_freq) { 1574e552af05SHaim Dreyfuss rcu_read_unlock(); 1575e552af05SHaim Dreyfuss return; 1576e552af05SHaim Dreyfuss } 1577e552af05SHaim Dreyfuss 1578e552af05SHaim Dreyfuss rrule = freq_reg_info(sdata->wdev.wiphy, MHZ_TO_KHZ(center_freq)); 1579e552af05SHaim Dreyfuss 158038cb87eeSStanislaw Gruszka if (IS_ERR_OR_NULL(rrule) || !rrule->has_wmm) { 1581e552af05SHaim Dreyfuss rcu_read_unlock(); 1582e552af05SHaim Dreyfuss return; 1583e552af05SHaim Dreyfuss } 1584e552af05SHaim Dreyfuss 1585e552af05SHaim Dreyfuss if (sdata->vif.type == NL80211_IFTYPE_AP) 158638cb87eeSStanislaw Gruszka wmm_ac = &rrule->wmm_rule.ap[ac]; 1587e552af05SHaim Dreyfuss else 158838cb87eeSStanislaw Gruszka wmm_ac = &rrule->wmm_rule.client[ac]; 1589e552af05SHaim Dreyfuss qparam->cw_min = max_t(u16, qparam->cw_min, wmm_ac->cw_min); 1590e552af05SHaim Dreyfuss qparam->cw_max = max_t(u16, qparam->cw_max, wmm_ac->cw_max); 1591e552af05SHaim Dreyfuss qparam->aifs = max_t(u8, qparam->aifs, wmm_ac->aifsn); 1592abd76d25SDreyfuss, Haim qparam->txop = min_t(u16, qparam->txop, wmm_ac->cot / 32); 1593e552af05SHaim Dreyfuss rcu_read_unlock(); 1594e552af05SHaim Dreyfuss } 1595e552af05SHaim Dreyfuss 15963abead59SJohannes Berg void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata, 1597cec66283SJohannes Berg bool bss_notify, bool enable_qos) 15985825fe10SJohannes Berg { 15995825fe10SJohannes Berg struct ieee80211_local *local = sdata->local; 16005825fe10SJohannes Berg struct ieee80211_tx_queue_params qparam; 160155de908aSJohannes Berg struct ieee80211_chanctx_conf *chanctx_conf; 160254bcbc69SJohannes Berg int ac; 1603cec66283SJohannes Berg bool use_11b; 1604239281f8SRostislav Lisovy bool is_ocb; /* Use another EDCA parameters if dot11OCBActivated=true */ 1605aa837e1dSJohannes Berg int aCWmin, aCWmax; 16065825fe10SJohannes Berg 16075825fe10SJohannes Berg if (!local->ops->conf_tx) 16085825fe10SJohannes Berg return; 16095825fe10SJohannes Berg 161054bcbc69SJohannes Berg if (local->hw.queues < IEEE80211_NUM_ACS) 161154bcbc69SJohannes Berg return; 161254bcbc69SJohannes Berg 16135825fe10SJohannes Berg memset(&qparam, 0, sizeof(qparam)); 16145825fe10SJohannes Berg 161555de908aSJohannes Berg rcu_read_lock(); 161655de908aSJohannes Berg chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 161755de908aSJohannes Berg use_11b = (chanctx_conf && 161857fbcce3SJohannes Berg chanctx_conf->def.chan->band == NL80211_BAND_2GHZ) && 1619aa837e1dSJohannes Berg !(sdata->flags & IEEE80211_SDATA_OPERATING_GMODE); 162055de908aSJohannes Berg rcu_read_unlock(); 16215825fe10SJohannes Berg 1622239281f8SRostislav Lisovy is_ocb = (sdata->vif.type == NL80211_IFTYPE_OCB); 1623239281f8SRostislav Lisovy 1624aa837e1dSJohannes Berg /* Set defaults according to 802.11-2007 Table 7-37 */ 1625aa837e1dSJohannes Berg aCWmax = 1023; 1626aa837e1dSJohannes Berg if (use_11b) 1627aa837e1dSJohannes Berg aCWmin = 31; 16285825fe10SJohannes Berg else 1629aa837e1dSJohannes Berg aCWmin = 15; 16305825fe10SJohannes Berg 16311f4ffde8SFred Zhou /* Confiure old 802.11b/g medium access rules. */ 16321f4ffde8SFred Zhou qparam.cw_max = aCWmax; 16331f4ffde8SFred Zhou qparam.cw_min = aCWmin; 16341f4ffde8SFred Zhou qparam.txop = 0; 16351f4ffde8SFred Zhou qparam.aifs = 2; 16361f4ffde8SFred Zhou 16371f4ffde8SFred Zhou for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 16381f4ffde8SFred Zhou /* Update if QoS is enabled. */ 1639a8ce8544SStanislaw Gruszka if (enable_qos) { 164054bcbc69SJohannes Berg switch (ac) { 16411d98fb12SJohannes Berg case IEEE80211_AC_BK: 16427ba10a8eSJohannes Berg qparam.cw_max = aCWmax; 16437ba10a8eSJohannes Berg qparam.cw_min = aCWmin; 16445825fe10SJohannes Berg qparam.txop = 0; 1645239281f8SRostislav Lisovy if (is_ocb) 1646239281f8SRostislav Lisovy qparam.aifs = 9; 1647239281f8SRostislav Lisovy else 1648aa837e1dSJohannes Berg qparam.aifs = 7; 1649aa837e1dSJohannes Berg break; 1650a8ce8544SStanislaw Gruszka /* never happens but let's not leave undefined */ 1651a8ce8544SStanislaw Gruszka default: 16521d98fb12SJohannes Berg case IEEE80211_AC_BE: 16537ba10a8eSJohannes Berg qparam.cw_max = aCWmax; 16547ba10a8eSJohannes Berg qparam.cw_min = aCWmin; 1655aa837e1dSJohannes Berg qparam.txop = 0; 1656239281f8SRostislav Lisovy if (is_ocb) 1657239281f8SRostislav Lisovy qparam.aifs = 6; 1658239281f8SRostislav Lisovy else 1659aa837e1dSJohannes Berg qparam.aifs = 3; 1660aa837e1dSJohannes Berg break; 16611d98fb12SJohannes Berg case IEEE80211_AC_VI: 1662aa837e1dSJohannes Berg qparam.cw_max = aCWmin; 1663aa837e1dSJohannes Berg qparam.cw_min = (aCWmin + 1) / 2 - 1; 1664239281f8SRostislav Lisovy if (is_ocb) 1665239281f8SRostislav Lisovy qparam.txop = 0; 1666239281f8SRostislav Lisovy else if (use_11b) 1667aa837e1dSJohannes Berg qparam.txop = 6016/32; 1668aa837e1dSJohannes Berg else 1669aa837e1dSJohannes Berg qparam.txop = 3008/32; 1670239281f8SRostislav Lisovy 1671239281f8SRostislav Lisovy if (is_ocb) 1672239281f8SRostislav Lisovy qparam.aifs = 3; 1673239281f8SRostislav Lisovy else 1674aa837e1dSJohannes Berg qparam.aifs = 2; 1675aa837e1dSJohannes Berg break; 16761d98fb12SJohannes Berg case IEEE80211_AC_VO: 1677aa837e1dSJohannes Berg qparam.cw_max = (aCWmin + 1) / 2 - 1; 1678aa837e1dSJohannes Berg qparam.cw_min = (aCWmin + 1) / 4 - 1; 1679239281f8SRostislav Lisovy if (is_ocb) 1680239281f8SRostislav Lisovy qparam.txop = 0; 1681239281f8SRostislav Lisovy else if (use_11b) 1682aa837e1dSJohannes Berg qparam.txop = 3264/32; 1683aa837e1dSJohannes Berg else 1684aa837e1dSJohannes Berg qparam.txop = 1504/32; 1685aa837e1dSJohannes Berg qparam.aifs = 2; 1686aa837e1dSJohannes Berg break; 1687aa837e1dSJohannes Berg } 1688a8ce8544SStanislaw Gruszka } 1689e552af05SHaim Dreyfuss ieee80211_regulatory_limit_wmm_params(sdata, &qparam, ac); 16905825fe10SJohannes Berg 1691ab13315aSKalle Valo qparam.uapsd = false; 1692ab13315aSKalle Valo 169354bcbc69SJohannes Berg sdata->tx_conf[ac] = qparam; 169454bcbc69SJohannes Berg drv_conf_tx(local, sdata, ac, &qparam); 1695aa837e1dSJohannes Berg } 1696e1b3ec1aSStanislaw Gruszka 1697f142c6b9SJohannes Berg if (sdata->vif.type != NL80211_IFTYPE_MONITOR && 1698708d50edSAyala Beker sdata->vif.type != NL80211_IFTYPE_P2P_DEVICE && 1699708d50edSAyala Beker sdata->vif.type != NL80211_IFTYPE_NAN) { 1700a8ce8544SStanislaw Gruszka sdata->vif.bss_conf.qos = enable_qos; 17013abead59SJohannes Berg if (bss_notify) 17023abead59SJohannes Berg ieee80211_bss_info_change_notify(sdata, 17033abead59SJohannes Berg BSS_CHANGED_QOS); 17045825fe10SJohannes Berg } 1705d9734979SSujith } 1706e50db65cSJohannes Berg 170746900298SJohannes Berg void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata, 1708700e8ea6SJouni Malinen u16 transaction, u16 auth_alg, u16 status, 17094a3cb702SJohannes Berg const u8 *extra, size_t extra_len, const u8 *da, 17101672c0e3SJohannes Berg const u8 *bssid, const u8 *key, u8 key_len, u8 key_idx, 17111672c0e3SJohannes Berg u32 tx_flags) 171246900298SJohannes Berg { 171346900298SJohannes Berg struct ieee80211_local *local = sdata->local; 171446900298SJohannes Berg struct sk_buff *skb; 171546900298SJohannes Berg struct ieee80211_mgmt *mgmt; 1716fffd0934SJohannes Berg int err; 171746900298SJohannes Berg 171815e230abSFred Zhou /* 24 + 6 = header + auth_algo + auth_transaction + status_code */ 1719744462a9SMax Stepanov skb = dev_alloc_skb(local->hw.extra_tx_headroom + IEEE80211_WEP_IV_LEN + 1720744462a9SMax Stepanov 24 + 6 + extra_len + IEEE80211_WEP_ICV_LEN); 1721d15b8459SJoe Perches if (!skb) 172246900298SJohannes Berg return; 1723d15b8459SJoe Perches 1724744462a9SMax Stepanov skb_reserve(skb, local->hw.extra_tx_headroom + IEEE80211_WEP_IV_LEN); 172546900298SJohannes Berg 1726b080db58SJohannes Berg mgmt = skb_put_zero(skb, 24 + 6); 172746900298SJohannes Berg mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | 172846900298SJohannes Berg IEEE80211_STYPE_AUTH); 1729efa6a09dSAntonio Quartulli memcpy(mgmt->da, da, ETH_ALEN); 173047846c9bSJohannes Berg memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN); 173146900298SJohannes Berg memcpy(mgmt->bssid, bssid, ETH_ALEN); 173246900298SJohannes Berg mgmt->u.auth.auth_alg = cpu_to_le16(auth_alg); 173346900298SJohannes Berg mgmt->u.auth.auth_transaction = cpu_to_le16(transaction); 1734700e8ea6SJouni Malinen mgmt->u.auth.status_code = cpu_to_le16(status); 173546900298SJohannes Berg if (extra) 173659ae1d12SJohannes Berg skb_put_data(skb, extra, extra_len); 173746900298SJohannes Berg 1738fffd0934SJohannes Berg if (auth_alg == WLAN_AUTH_SHARED_KEY && transaction == 3) { 1739fffd0934SJohannes Berg mgmt->frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED); 1740fffd0934SJohannes Berg err = ieee80211_wep_encrypt(local, skb, key, key_len, key_idx); 17417d7b0075SJohannes Berg if (WARN_ON(err)) { 17427d7b0075SJohannes Berg kfree_skb(skb); 17437d7b0075SJohannes Berg return; 17447d7b0075SJohannes Berg } 1745fffd0934SJohannes Berg } 1746fffd0934SJohannes Berg 17471672c0e3SJohannes Berg IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT | 17481672c0e3SJohannes Berg tx_flags; 174962ae67beSJohannes Berg ieee80211_tx_skb(sdata, skb); 175046900298SJohannes Berg } 175146900298SJohannes Berg 17526ae16775SAntonio Quartulli void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata, 17534b08d1b6SJohannes Berg const u8 *da, const u8 *bssid, 17544b08d1b6SJohannes Berg u16 stype, u16 reason, 17556ae16775SAntonio Quartulli bool send_frame, u8 *frame_buf) 17566ae16775SAntonio Quartulli { 17576ae16775SAntonio Quartulli struct ieee80211_local *local = sdata->local; 17586ae16775SAntonio Quartulli struct sk_buff *skb; 17596ae16775SAntonio Quartulli struct ieee80211_mgmt *mgmt = (void *)frame_buf; 17606ae16775SAntonio Quartulli 17616ae16775SAntonio Quartulli /* build frame */ 17626ae16775SAntonio Quartulli mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | stype); 17636ae16775SAntonio Quartulli mgmt->duration = 0; /* initialize only */ 17646ae16775SAntonio Quartulli mgmt->seq_ctrl = 0; /* initialize only */ 17654b08d1b6SJohannes Berg memcpy(mgmt->da, da, ETH_ALEN); 17666ae16775SAntonio Quartulli memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN); 17676ae16775SAntonio Quartulli memcpy(mgmt->bssid, bssid, ETH_ALEN); 17686ae16775SAntonio Quartulli /* u.deauth.reason_code == u.disassoc.reason_code */ 17696ae16775SAntonio Quartulli mgmt->u.deauth.reason_code = cpu_to_le16(reason); 17706ae16775SAntonio Quartulli 17716ae16775SAntonio Quartulli if (send_frame) { 17726ae16775SAntonio Quartulli skb = dev_alloc_skb(local->hw.extra_tx_headroom + 17736ae16775SAntonio Quartulli IEEE80211_DEAUTH_FRAME_LEN); 17746ae16775SAntonio Quartulli if (!skb) 17756ae16775SAntonio Quartulli return; 17766ae16775SAntonio Quartulli 17776ae16775SAntonio Quartulli skb_reserve(skb, local->hw.extra_tx_headroom); 17786ae16775SAntonio Quartulli 17796ae16775SAntonio Quartulli /* copy in frame */ 178059ae1d12SJohannes Berg skb_put_data(skb, mgmt, IEEE80211_DEAUTH_FRAME_LEN); 17816ae16775SAntonio Quartulli 17826ae16775SAntonio Quartulli if (sdata->vif.type != NL80211_IFTYPE_STATION || 17836ae16775SAntonio Quartulli !(sdata->u.mgd.flags & IEEE80211_STA_MFP_ENABLED)) 17846ae16775SAntonio Quartulli IEEE80211_SKB_CB(skb)->flags |= 17856ae16775SAntonio Quartulli IEEE80211_TX_INTFL_DONT_ENCRYPT; 17866ae16775SAntonio Quartulli 17876ae16775SAntonio Quartulli ieee80211_tx_skb(sdata, skb); 17886ae16775SAntonio Quartulli } 17896ae16775SAntonio Quartulli } 17906ae16775SAntonio Quartulli 17912ad2274cSIlan Peer static u8 *ieee80211_write_he_6ghz_cap(u8 *pos, __le16 cap, u8 *end) 17922ad2274cSIlan Peer { 17932ad2274cSIlan Peer if ((end - pos) < 5) 17942ad2274cSIlan Peer return pos; 17952ad2274cSIlan Peer 17962ad2274cSIlan Peer *pos++ = WLAN_EID_EXTENSION; 17972ad2274cSIlan Peer *pos++ = 1 + sizeof(cap); 17982ad2274cSIlan Peer *pos++ = WLAN_EID_EXT_HE_6GHZ_CAPA; 17992ad2274cSIlan Peer memcpy(pos, &cap, sizeof(cap)); 18002ad2274cSIlan Peer 18012ad2274cSIlan Peer return pos + 2; 18022ad2274cSIlan Peer } 18032ad2274cSIlan Peer 18042ad2274cSIlan Peer static int ieee80211_build_preq_ies_band(struct ieee80211_sub_if_data *sdata, 1805c56ef672SDavid Spinadel u8 *buffer, size_t buffer_len, 1806c56ef672SDavid Spinadel const u8 *ie, size_t ie_len, 180757fbcce3SJohannes Berg enum nl80211_band band, 1808c56ef672SDavid Spinadel u32 rate_mask, 1809c56ef672SDavid Spinadel struct cfg80211_chan_def *chandef, 181000387f32SJohannes Berg size_t *offset, u32 flags) 1811de95a54bSJohannes Berg { 18122ad2274cSIlan Peer struct ieee80211_local *local = sdata->local; 1813de95a54bSJohannes Berg struct ieee80211_supported_band *sband; 181441cbb0f5SLuca Coelho const struct ieee80211_sta_he_cap *he_cap; 1815820acc81SIlan Peer const struct ieee80211_sta_eht_cap *eht_cap; 1816c604b9f2SJohannes Berg u8 *pos = buffer, *end = buffer + buffer_len; 1817c56ef672SDavid Spinadel size_t noffset; 18188e664fb3SJohannes Berg int supp_rates_len, i; 18198dcb2003SJouni Malinen u8 rates[32]; 18208dcb2003SJouni Malinen int num_rates; 18218dcb2003SJouni Malinen int ext_rates_len; 18222103dec1SSimon Wunderlich int shift; 18232103dec1SSimon Wunderlich u32 rate_flags; 182440a11ca8SJohannes Berg bool have_80mhz = false; 1825de95a54bSJohannes Berg 1826c56ef672SDavid Spinadel *offset = 0; 1827c56ef672SDavid Spinadel 18284d36ec58SJohannes Berg sband = local->hw.wiphy->bands[band]; 1829d811b3d5SArik Nemtsov if (WARN_ON_ONCE(!sband)) 1830d811b3d5SArik Nemtsov return 0; 1831de95a54bSJohannes Berg 18322103dec1SSimon Wunderlich rate_flags = ieee80211_chandef_rate_flags(chandef); 18332103dec1SSimon Wunderlich shift = ieee80211_chandef_get_shift(chandef); 18342103dec1SSimon Wunderlich 18358dcb2003SJouni Malinen num_rates = 0; 18368dcb2003SJouni Malinen for (i = 0; i < sband->n_bitrates; i++) { 18378dcb2003SJouni Malinen if ((BIT(i) & rate_mask) == 0) 18388dcb2003SJouni Malinen continue; /* skip rate */ 18392103dec1SSimon Wunderlich if ((rate_flags & sband->bitrates[i].flags) != rate_flags) 18402103dec1SSimon Wunderlich continue; 18412103dec1SSimon Wunderlich 18422103dec1SSimon Wunderlich rates[num_rates++] = 18432103dec1SSimon Wunderlich (u8) DIV_ROUND_UP(sband->bitrates[i].bitrate, 18442103dec1SSimon Wunderlich (1 << shift) * 5); 18458dcb2003SJouni Malinen } 18468dcb2003SJouni Malinen 18478dcb2003SJouni Malinen supp_rates_len = min_t(int, num_rates, 8); 18488e664fb3SJohannes Berg 1849c604b9f2SJohannes Berg if (end - pos < 2 + supp_rates_len) 1850c604b9f2SJohannes Berg goto out_err; 1851de95a54bSJohannes Berg *pos++ = WLAN_EID_SUPP_RATES; 18528e664fb3SJohannes Berg *pos++ = supp_rates_len; 18538dcb2003SJouni Malinen memcpy(pos, rates, supp_rates_len); 18548dcb2003SJouni Malinen pos += supp_rates_len; 1855de95a54bSJohannes Berg 18568e664fb3SJohannes Berg /* insert "request information" if in custom IEs */ 18578e664fb3SJohannes Berg if (ie && ie_len) { 18588e664fb3SJohannes Berg static const u8 before_extrates[] = { 18598e664fb3SJohannes Berg WLAN_EID_SSID, 18608e664fb3SJohannes Berg WLAN_EID_SUPP_RATES, 18618e664fb3SJohannes Berg WLAN_EID_REQUEST, 18628e664fb3SJohannes Berg }; 18638e664fb3SJohannes Berg noffset = ieee80211_ie_split(ie, ie_len, 18648e664fb3SJohannes Berg before_extrates, 18658e664fb3SJohannes Berg ARRAY_SIZE(before_extrates), 1866c56ef672SDavid Spinadel *offset); 1867c56ef672SDavid Spinadel if (end - pos < noffset - *offset) 1868c604b9f2SJohannes Berg goto out_err; 1869c56ef672SDavid Spinadel memcpy(pos, ie + *offset, noffset - *offset); 1870c56ef672SDavid Spinadel pos += noffset - *offset; 1871c56ef672SDavid Spinadel *offset = noffset; 18728e664fb3SJohannes Berg } 18738e664fb3SJohannes Berg 18748dcb2003SJouni Malinen ext_rates_len = num_rates - supp_rates_len; 18758dcb2003SJouni Malinen if (ext_rates_len > 0) { 1876c604b9f2SJohannes Berg if (end - pos < 2 + ext_rates_len) 1877c604b9f2SJohannes Berg goto out_err; 1878de95a54bSJohannes Berg *pos++ = WLAN_EID_EXT_SUPP_RATES; 18798dcb2003SJouni Malinen *pos++ = ext_rates_len; 18808dcb2003SJouni Malinen memcpy(pos, rates + supp_rates_len, ext_rates_len); 18818dcb2003SJouni Malinen pos += ext_rates_len; 18828e664fb3SJohannes Berg } 18838e664fb3SJohannes Berg 188457fbcce3SJohannes Berg if (chandef->chan && sband->band == NL80211_BAND_2GHZ) { 1885c604b9f2SJohannes Berg if (end - pos < 3) 1886c604b9f2SJohannes Berg goto out_err; 1887651b5225SJouni Malinen *pos++ = WLAN_EID_DS_PARAMS; 1888651b5225SJouni Malinen *pos++ = 1; 18892103dec1SSimon Wunderlich *pos++ = ieee80211_frequency_to_channel( 18902103dec1SSimon Wunderlich chandef->chan->center_freq); 1891651b5225SJouni Malinen } 1892651b5225SJouni Malinen 1893b9771d41SJohannes Berg if (flags & IEEE80211_PROBE_FLAG_MIN_CONTENT) 1894b9771d41SJohannes Berg goto done; 1895b9771d41SJohannes Berg 18968e664fb3SJohannes Berg /* insert custom IEs that go before HT */ 18978e664fb3SJohannes Berg if (ie && ie_len) { 18988e664fb3SJohannes Berg static const u8 before_ht[] = { 1899a7f26d80SJohannes Berg /* 1900a7f26d80SJohannes Berg * no need to list the ones split off already 1901a7f26d80SJohannes Berg * (or generated here) 1902a7f26d80SJohannes Berg */ 19038e664fb3SJohannes Berg WLAN_EID_DS_PARAMS, 19048e664fb3SJohannes Berg WLAN_EID_SUPPORTED_REGULATORY_CLASSES, 19058e664fb3SJohannes Berg }; 19068e664fb3SJohannes Berg noffset = ieee80211_ie_split(ie, ie_len, 19078e664fb3SJohannes Berg before_ht, ARRAY_SIZE(before_ht), 1908c56ef672SDavid Spinadel *offset); 1909c56ef672SDavid Spinadel if (end - pos < noffset - *offset) 1910c604b9f2SJohannes Berg goto out_err; 1911c56ef672SDavid Spinadel memcpy(pos, ie + *offset, noffset - *offset); 1912c56ef672SDavid Spinadel pos += noffset - *offset; 1913c56ef672SDavid Spinadel *offset = noffset; 1914de95a54bSJohannes Berg } 1915de95a54bSJohannes Berg 1916c604b9f2SJohannes Berg if (sband->ht_cap.ht_supported) { 1917c604b9f2SJohannes Berg if (end - pos < 2 + sizeof(struct ieee80211_ht_cap)) 1918c604b9f2SJohannes Berg goto out_err; 1919ef96a842SBen Greear pos = ieee80211_ie_build_ht_cap(pos, &sband->ht_cap, 1920ef96a842SBen Greear sband->ht_cap.cap); 1921c604b9f2SJohannes Berg } 19225ef2d41aSJohannes Berg 19234d952300SJohannes Berg /* insert custom IEs that go before VHT */ 19248e664fb3SJohannes Berg if (ie && ie_len) { 19254d952300SJohannes Berg static const u8 before_vht[] = { 1926a7f26d80SJohannes Berg /* 1927a7f26d80SJohannes Berg * no need to list the ones split off already 1928a7f26d80SJohannes Berg * (or generated here) 1929a7f26d80SJohannes Berg */ 19304d952300SJohannes Berg WLAN_EID_BSS_COEX_2040, 19314d952300SJohannes Berg WLAN_EID_EXT_CAPABILITY, 19324d952300SJohannes Berg WLAN_EID_SSID_LIST, 19334d952300SJohannes Berg WLAN_EID_CHANNEL_USAGE, 19344d952300SJohannes Berg WLAN_EID_INTERWORKING, 1935b44eebeaSLiad Kaufman WLAN_EID_MESH_ID, 1936a7f26d80SJohannes Berg /* 60 GHz (Multi-band, DMG, MMS) can't happen */ 19374d952300SJohannes Berg }; 19384d952300SJohannes Berg noffset = ieee80211_ie_split(ie, ie_len, 19394d952300SJohannes Berg before_vht, ARRAY_SIZE(before_vht), 1940c56ef672SDavid Spinadel *offset); 1941c56ef672SDavid Spinadel if (end - pos < noffset - *offset) 1942c604b9f2SJohannes Berg goto out_err; 1943c56ef672SDavid Spinadel memcpy(pos, ie + *offset, noffset - *offset); 1944c56ef672SDavid Spinadel pos += noffset - *offset; 1945c56ef672SDavid Spinadel *offset = noffset; 1946de95a54bSJohannes Berg } 1947de95a54bSJohannes Berg 194840a11ca8SJohannes Berg /* Check if any channel in this sband supports at least 80 MHz */ 194940a11ca8SJohannes Berg for (i = 0; i < sband->n_channels; i++) { 1950fa44b988SArik Nemtsov if (sband->channels[i].flags & (IEEE80211_CHAN_DISABLED | 1951fa44b988SArik Nemtsov IEEE80211_CHAN_NO_80MHZ)) 1952fa44b988SArik Nemtsov continue; 1953fa44b988SArik Nemtsov 195440a11ca8SJohannes Berg have_80mhz = true; 195540a11ca8SJohannes Berg break; 195640a11ca8SJohannes Berg } 195740a11ca8SJohannes Berg 195840a11ca8SJohannes Berg if (sband->vht_cap.vht_supported && have_80mhz) { 1959c604b9f2SJohannes Berg if (end - pos < 2 + sizeof(struct ieee80211_vht_cap)) 1960c604b9f2SJohannes Berg goto out_err; 1961ba0afa2fSMahesh Palivela pos = ieee80211_ie_build_vht_cap(pos, &sband->vht_cap, 1962ba0afa2fSMahesh Palivela sband->vht_cap.cap); 1963c604b9f2SJohannes Berg } 1964ba0afa2fSMahesh Palivela 196541cbb0f5SLuca Coelho /* insert custom IEs that go before HE */ 196641cbb0f5SLuca Coelho if (ie && ie_len) { 196741cbb0f5SLuca Coelho static const u8 before_he[] = { 196841cbb0f5SLuca Coelho /* 196941cbb0f5SLuca Coelho * no need to list the ones split off before VHT 197041cbb0f5SLuca Coelho * or generated here 197141cbb0f5SLuca Coelho */ 197241cbb0f5SLuca Coelho WLAN_EID_EXTENSION, WLAN_EID_EXT_FILS_REQ_PARAMS, 197341cbb0f5SLuca Coelho WLAN_EID_AP_CSN, 197441cbb0f5SLuca Coelho /* TODO: add 11ah/11aj/11ak elements */ 197541cbb0f5SLuca Coelho }; 197641cbb0f5SLuca Coelho noffset = ieee80211_ie_split(ie, ie_len, 197741cbb0f5SLuca Coelho before_he, ARRAY_SIZE(before_he), 197841cbb0f5SLuca Coelho *offset); 197941cbb0f5SLuca Coelho if (end - pos < noffset - *offset) 198041cbb0f5SLuca Coelho goto out_err; 198141cbb0f5SLuca Coelho memcpy(pos, ie + *offset, noffset - *offset); 198241cbb0f5SLuca Coelho pos += noffset - *offset; 198341cbb0f5SLuca Coelho *offset = noffset; 198441cbb0f5SLuca Coelho } 198541cbb0f5SLuca Coelho 1986bac2fd3dSJohannes Berg he_cap = ieee80211_get_he_iftype_cap(sband, 1987bac2fd3dSJohannes Berg ieee80211_vif_type_p2p(&sdata->vif)); 19880bc47057SJohannes Berg if (he_cap && 19890bc47057SJohannes Berg cfg80211_any_usable_channels(local->hw.wiphy, BIT(sband->band), 19900bc47057SJohannes Berg IEEE80211_CHAN_NO_HE)) { 19911f2c1044SJohannes Berg pos = ieee80211_ie_build_he_cap(0, pos, he_cap, end); 199241cbb0f5SLuca Coelho if (!pos) 199341cbb0f5SLuca Coelho goto out_err; 19947d29bc50SJohannes Berg } 19952ad2274cSIlan Peer 1996820acc81SIlan Peer eht_cap = ieee80211_get_eht_iftype_cap(sband, 1997820acc81SIlan Peer ieee80211_vif_type_p2p(&sdata->vif)); 1998820acc81SIlan Peer 1999820acc81SIlan Peer if (eht_cap && 2000820acc81SIlan Peer cfg80211_any_usable_channels(local->hw.wiphy, BIT(sband->band), 2001820acc81SIlan Peer IEEE80211_CHAN_NO_HE | 2002820acc81SIlan Peer IEEE80211_CHAN_NO_EHT)) { 2003820acc81SIlan Peer pos = ieee80211_ie_build_eht_cap(pos, he_cap, eht_cap, end); 2004820acc81SIlan Peer if (!pos) 2005820acc81SIlan Peer goto out_err; 2006820acc81SIlan Peer } 2007820acc81SIlan Peer 20087d29bc50SJohannes Berg if (cfg80211_any_usable_channels(local->hw.wiphy, 20097d29bc50SJohannes Berg BIT(NL80211_BAND_6GHZ), 20107d29bc50SJohannes Berg IEEE80211_CHAN_NO_HE)) { 20117d29bc50SJohannes Berg struct ieee80211_supported_band *sband6; 20127d29bc50SJohannes Berg 20137d29bc50SJohannes Berg sband6 = local->hw.wiphy->bands[NL80211_BAND_6GHZ]; 20147d29bc50SJohannes Berg he_cap = ieee80211_get_he_iftype_cap(sband6, 20157d29bc50SJohannes Berg ieee80211_vif_type_p2p(&sdata->vif)); 20167d29bc50SJohannes Berg 20177d29bc50SJohannes Berg if (he_cap) { 20182ad2274cSIlan Peer enum nl80211_iftype iftype = 20192ad2274cSIlan Peer ieee80211_vif_type_p2p(&sdata->vif); 20202ad2274cSIlan Peer __le16 cap = ieee80211_get_he_6ghz_capa(sband, iftype); 20212ad2274cSIlan Peer 20222ad2274cSIlan Peer pos = ieee80211_write_he_6ghz_cap(pos, cap, end); 20232ad2274cSIlan Peer } 202441cbb0f5SLuca Coelho } 202541cbb0f5SLuca Coelho 202641cbb0f5SLuca Coelho /* 202741cbb0f5SLuca Coelho * If adding more here, adjust code in main.c 202841cbb0f5SLuca Coelho * that calculates local->scan_ies_len. 202941cbb0f5SLuca Coelho */ 203041cbb0f5SLuca Coelho 2031de95a54bSJohannes Berg return pos - buffer; 2032c604b9f2SJohannes Berg out_err: 2033c604b9f2SJohannes Berg WARN_ONCE(1, "not enough space for preq IEs\n"); 2034b9771d41SJohannes Berg done: 2035c604b9f2SJohannes Berg return pos - buffer; 2036de95a54bSJohannes Berg } 2037de95a54bSJohannes Berg 20382ad2274cSIlan Peer int ieee80211_build_preq_ies(struct ieee80211_sub_if_data *sdata, u8 *buffer, 2039c56ef672SDavid Spinadel size_t buffer_len, 2040c56ef672SDavid Spinadel struct ieee80211_scan_ies *ie_desc, 2041c56ef672SDavid Spinadel const u8 *ie, size_t ie_len, 2042c56ef672SDavid Spinadel u8 bands_used, u32 *rate_masks, 204300387f32SJohannes Berg struct cfg80211_chan_def *chandef, 204400387f32SJohannes Berg u32 flags) 2045c56ef672SDavid Spinadel { 2046c56ef672SDavid Spinadel size_t pos = 0, old_pos = 0, custom_ie_offset = 0; 2047c56ef672SDavid Spinadel int i; 2048c56ef672SDavid Spinadel 2049c56ef672SDavid Spinadel memset(ie_desc, 0, sizeof(*ie_desc)); 2050c56ef672SDavid Spinadel 205157fbcce3SJohannes Berg for (i = 0; i < NUM_NL80211_BANDS; i++) { 2052c56ef672SDavid Spinadel if (bands_used & BIT(i)) { 20532ad2274cSIlan Peer pos += ieee80211_build_preq_ies_band(sdata, 2054c56ef672SDavid Spinadel buffer + pos, 2055c56ef672SDavid Spinadel buffer_len - pos, 2056c56ef672SDavid Spinadel ie, ie_len, i, 2057c56ef672SDavid Spinadel rate_masks[i], 2058c56ef672SDavid Spinadel chandef, 205900387f32SJohannes Berg &custom_ie_offset, 206000387f32SJohannes Berg flags); 2061c56ef672SDavid Spinadel ie_desc->ies[i] = buffer + old_pos; 2062c56ef672SDavid Spinadel ie_desc->len[i] = pos - old_pos; 2063c56ef672SDavid Spinadel old_pos = pos; 2064c56ef672SDavid Spinadel } 2065c56ef672SDavid Spinadel } 2066c56ef672SDavid Spinadel 2067c56ef672SDavid Spinadel /* add any remaining custom IEs */ 2068c56ef672SDavid Spinadel if (ie && ie_len) { 2069c56ef672SDavid Spinadel if (WARN_ONCE(buffer_len - pos < ie_len - custom_ie_offset, 2070c56ef672SDavid Spinadel "not enough space for preq custom IEs\n")) 2071c56ef672SDavid Spinadel return pos; 2072c56ef672SDavid Spinadel memcpy(buffer + pos, ie + custom_ie_offset, 2073c56ef672SDavid Spinadel ie_len - custom_ie_offset); 2074c56ef672SDavid Spinadel ie_desc->common_ies = buffer + pos; 2075c56ef672SDavid Spinadel ie_desc->common_ie_len = ie_len - custom_ie_offset; 2076c56ef672SDavid Spinadel pos += ie_len - custom_ie_offset; 2077c56ef672SDavid Spinadel } 2078c56ef672SDavid Spinadel 2079c56ef672SDavid Spinadel return pos; 2080c56ef672SDavid Spinadel }; 2081c56ef672SDavid Spinadel 2082a619a4c0SJuuso Oikarinen struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata, 2083a344d677SJohannes Berg const u8 *src, const u8 *dst, 2084a344d677SJohannes Berg u32 ratemask, 20856b77863bSJohannes Berg struct ieee80211_channel *chan, 2086de95a54bSJohannes Berg const u8 *ssid, size_t ssid_len, 2087a806c558SPaul Stewart const u8 *ie, size_t ie_len, 208800387f32SJohannes Berg u32 flags) 208946900298SJohannes Berg { 209046900298SJohannes Berg struct ieee80211_local *local = sdata->local; 20912103dec1SSimon Wunderlich struct cfg80211_chan_def chandef; 209246900298SJohannes Berg struct sk_buff *skb; 209346900298SJohannes Berg struct ieee80211_mgmt *mgmt; 2094b9a9ada1SJohannes Berg int ies_len; 209557fbcce3SJohannes Berg u32 rate_masks[NUM_NL80211_BANDS] = {}; 2096c56ef672SDavid Spinadel struct ieee80211_scan_ies dummy_ie_desc; 209746900298SJohannes Berg 2098a806c558SPaul Stewart /* 2099a806c558SPaul Stewart * Do not send DS Channel parameter for directed probe requests 2100a806c558SPaul Stewart * in order to maximize the chance that we get a response. Some 2101a806c558SPaul Stewart * badly-behaved APs don't respond when this parameter is included. 2102a806c558SPaul Stewart */ 21032103dec1SSimon Wunderlich chandef.width = sdata->vif.bss_conf.chandef.width; 210400387f32SJohannes Berg if (flags & IEEE80211_PROBE_FLAG_DIRECTED) 21052103dec1SSimon Wunderlich chandef.chan = NULL; 2106a806c558SPaul Stewart else 21072103dec1SSimon Wunderlich chandef.chan = chan; 2108651b5225SJouni Malinen 2109a344d677SJohannes Berg skb = ieee80211_probereq_get(&local->hw, src, ssid, ssid_len, 2110f22d9813SIlan Peer local->scan_ies_len + ie_len); 21115b2bbf75SJohannes Berg if (!skb) 2112b9a9ada1SJohannes Berg return NULL; 2113b9a9ada1SJohannes Berg 2114c56ef672SDavid Spinadel rate_masks[chan->band] = ratemask; 21152ad2274cSIlan Peer ies_len = ieee80211_build_preq_ies(sdata, skb_tail_pointer(skb), 2116c56ef672SDavid Spinadel skb_tailroom(skb), &dummy_ie_desc, 2117c56ef672SDavid Spinadel ie, ie_len, BIT(chan->band), 211800387f32SJohannes Berg rate_masks, &chandef, flags); 2119b9a9ada1SJohannes Berg skb_put(skb, ies_len); 21207c12ce8bSKalle Valo 212146900298SJohannes Berg if (dst) { 21227c12ce8bSKalle Valo mgmt = (struct ieee80211_mgmt *) skb->data; 212346900298SJohannes Berg memcpy(mgmt->da, dst, ETH_ALEN); 212446900298SJohannes Berg memcpy(mgmt->bssid, dst, ETH_ALEN); 212546900298SJohannes Berg } 212646900298SJohannes Berg 212762ae67beSJohannes Berg IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT; 21285b2bbf75SJohannes Berg 2129a619a4c0SJuuso Oikarinen return skb; 2130a619a4c0SJuuso Oikarinen } 2131a619a4c0SJuuso Oikarinen 21322103dec1SSimon Wunderlich u32 ieee80211_sta_get_rates(struct ieee80211_sub_if_data *sdata, 213346900298SJohannes Berg struct ieee802_11_elems *elems, 213457fbcce3SJohannes Berg enum nl80211_band band, u32 *basic_rates) 213546900298SJohannes Berg { 213646900298SJohannes Berg struct ieee80211_supported_band *sband; 213746900298SJohannes Berg size_t num_rates; 21382103dec1SSimon Wunderlich u32 supp_rates, rate_flags; 21392103dec1SSimon Wunderlich int i, j, shift; 214021a8e9ddSMohammed Shafi Shajakhan 21412103dec1SSimon Wunderlich sband = sdata->local->hw.wiphy->bands[band]; 214221a8e9ddSMohammed Shafi Shajakhan if (WARN_ON(!sband)) 214321a8e9ddSMohammed Shafi Shajakhan return 1; 21442103dec1SSimon Wunderlich 21452103dec1SSimon Wunderlich rate_flags = ieee80211_chandef_rate_flags(&sdata->vif.bss_conf.chandef); 21462103dec1SSimon Wunderlich shift = ieee80211_vif_get_shift(&sdata->vif); 214746900298SJohannes Berg 214846900298SJohannes Berg num_rates = sband->n_bitrates; 214946900298SJohannes Berg supp_rates = 0; 215046900298SJohannes Berg for (i = 0; i < elems->supp_rates_len + 215146900298SJohannes Berg elems->ext_supp_rates_len; i++) { 215246900298SJohannes Berg u8 rate = 0; 215346900298SJohannes Berg int own_rate; 21549ebb61a2SAshok Nagarajan bool is_basic; 215546900298SJohannes Berg if (i < elems->supp_rates_len) 215646900298SJohannes Berg rate = elems->supp_rates[i]; 215746900298SJohannes Berg else if (elems->ext_supp_rates) 215846900298SJohannes Berg rate = elems->ext_supp_rates 215946900298SJohannes Berg [i - elems->supp_rates_len]; 216046900298SJohannes Berg own_rate = 5 * (rate & 0x7f); 21619ebb61a2SAshok Nagarajan is_basic = !!(rate & 0x80); 21629ebb61a2SAshok Nagarajan 21639ebb61a2SAshok Nagarajan if (is_basic && (rate & 0x7f) == BSS_MEMBERSHIP_SELECTOR_HT_PHY) 21649ebb61a2SAshok Nagarajan continue; 21659ebb61a2SAshok Nagarajan 21669ebb61a2SAshok Nagarajan for (j = 0; j < num_rates; j++) { 21672103dec1SSimon Wunderlich int brate; 21682103dec1SSimon Wunderlich if ((rate_flags & sband->bitrates[j].flags) 21692103dec1SSimon Wunderlich != rate_flags) 21702103dec1SSimon Wunderlich continue; 21712103dec1SSimon Wunderlich 21722103dec1SSimon Wunderlich brate = DIV_ROUND_UP(sband->bitrates[j].bitrate, 21732103dec1SSimon Wunderlich 1 << shift); 21742103dec1SSimon Wunderlich 21752103dec1SSimon Wunderlich if (brate == own_rate) { 217646900298SJohannes Berg supp_rates |= BIT(j); 21779ebb61a2SAshok Nagarajan if (basic_rates && is_basic) 21789ebb61a2SAshok Nagarajan *basic_rates |= BIT(j); 21799ebb61a2SAshok Nagarajan } 21809ebb61a2SAshok Nagarajan } 218146900298SJohannes Berg } 218246900298SJohannes Berg return supp_rates; 218346900298SJohannes Berg } 2184f2753ddbSJohannes Berg 218584f6a01cSJohannes Berg void ieee80211_stop_device(struct ieee80211_local *local) 218684f6a01cSJohannes Berg { 218784f6a01cSJohannes Berg ieee80211_led_radio(local, false); 218867408c8cSJohannes Berg ieee80211_mod_tpt_led_trig(local, 0, IEEE80211_TPT_LEDTRIG_FL_RADIO); 218984f6a01cSJohannes Berg 219084f6a01cSJohannes Berg cancel_work_sync(&local->reconfig_filter); 219184f6a01cSJohannes Berg 219284f6a01cSJohannes Berg flush_workqueue(local->workqueue); 2193678f415fSLennert Buytenhek drv_stop(local); 219484f6a01cSJohannes Berg } 219584f6a01cSJohannes Berg 219674430f94SJohannes Berg static void ieee80211_flush_completed_scan(struct ieee80211_local *local, 219774430f94SJohannes Berg bool aborted) 219874430f94SJohannes Berg { 219974430f94SJohannes Berg /* It's possible that we don't handle the scan completion in 220074430f94SJohannes Berg * time during suspend, so if it's still marked as completed 220174430f94SJohannes Berg * here, queue the work and flush it to clean things up. 220274430f94SJohannes Berg * Instead of calling the worker function directly here, we 220374430f94SJohannes Berg * really queue it to avoid potential races with other flows 220474430f94SJohannes Berg * scheduling the same work. 220574430f94SJohannes Berg */ 220674430f94SJohannes Berg if (test_bit(SCAN_COMPLETED, &local->scanning)) { 220774430f94SJohannes Berg /* If coming from reconfiguration failure, abort the scan so 220874430f94SJohannes Berg * we don't attempt to continue a partial HW scan - which is 220974430f94SJohannes Berg * possible otherwise if (e.g.) the 2.4 GHz portion was the 221074430f94SJohannes Berg * completed scan, and a 5 GHz portion is still pending. 221174430f94SJohannes Berg */ 221274430f94SJohannes Berg if (aborted) 221374430f94SJohannes Berg set_bit(SCAN_ABORTED, &local->scanning); 221474430f94SJohannes Berg ieee80211_queue_delayed_work(&local->hw, &local->scan_work, 0); 221574430f94SJohannes Berg flush_delayed_work(&local->scan_work); 221674430f94SJohannes Berg } 221774430f94SJohannes Berg } 221874430f94SJohannes Berg 2219f6837ba8SJohannes Berg static void ieee80211_handle_reconfig_failure(struct ieee80211_local *local) 2220f6837ba8SJohannes Berg { 2221f6837ba8SJohannes Berg struct ieee80211_sub_if_data *sdata; 2222f6837ba8SJohannes Berg struct ieee80211_chanctx *ctx; 2223f6837ba8SJohannes Berg 2224f6837ba8SJohannes Berg /* 2225f6837ba8SJohannes Berg * We get here if during resume the device can't be restarted properly. 2226f6837ba8SJohannes Berg * We might also get here if this happens during HW reset, which is a 2227f6837ba8SJohannes Berg * slightly different situation and we need to drop all connections in 2228f6837ba8SJohannes Berg * the latter case. 2229f6837ba8SJohannes Berg * 2230f6837ba8SJohannes Berg * Ask cfg80211 to turn off all interfaces, this will result in more 2231f6837ba8SJohannes Berg * warnings but at least we'll then get into a clean stopped state. 2232f6837ba8SJohannes Berg */ 2233f6837ba8SJohannes Berg 2234f6837ba8SJohannes Berg local->resuming = false; 2235f6837ba8SJohannes Berg local->suspended = false; 22367584f88fSEliad Peller local->in_reconfig = false; 2237f6837ba8SJohannes Berg 223874430f94SJohannes Berg ieee80211_flush_completed_scan(local, true); 223974430f94SJohannes Berg 2240f6837ba8SJohannes Berg /* scheduled scan clearly can't be running any more, but tell 2241f6837ba8SJohannes Berg * cfg80211 and clear local state 2242f6837ba8SJohannes Berg */ 2243f6837ba8SJohannes Berg ieee80211_sched_scan_end(local); 2244f6837ba8SJohannes Berg 2245f6837ba8SJohannes Berg list_for_each_entry(sdata, &local->interfaces, list) 2246f6837ba8SJohannes Berg sdata->flags &= ~IEEE80211_SDATA_IN_DRIVER; 2247f6837ba8SJohannes Berg 2248f6837ba8SJohannes Berg /* Mark channel contexts as not being in the driver any more to avoid 2249f6837ba8SJohannes Berg * removing them from the driver during the shutdown process... 2250f6837ba8SJohannes Berg */ 2251f6837ba8SJohannes Berg mutex_lock(&local->chanctx_mtx); 2252f6837ba8SJohannes Berg list_for_each_entry(ctx, &local->chanctx_list, list) 2253f6837ba8SJohannes Berg ctx->driver_present = false; 2254f6837ba8SJohannes Berg mutex_unlock(&local->chanctx_mtx); 2255f6837ba8SJohannes Berg } 2256f6837ba8SJohannes Berg 2257153a5fc4SStanislaw Gruszka static void ieee80211_assign_chanctx(struct ieee80211_local *local, 2258153a5fc4SStanislaw Gruszka struct ieee80211_sub_if_data *sdata) 2259153a5fc4SStanislaw Gruszka { 2260153a5fc4SStanislaw Gruszka struct ieee80211_chanctx_conf *conf; 2261153a5fc4SStanislaw Gruszka struct ieee80211_chanctx *ctx; 2262153a5fc4SStanislaw Gruszka 2263153a5fc4SStanislaw Gruszka if (!local->use_chanctx) 2264153a5fc4SStanislaw Gruszka return; 2265153a5fc4SStanislaw Gruszka 2266153a5fc4SStanislaw Gruszka mutex_lock(&local->chanctx_mtx); 2267153a5fc4SStanislaw Gruszka conf = rcu_dereference_protected(sdata->vif.chanctx_conf, 2268153a5fc4SStanislaw Gruszka lockdep_is_held(&local->chanctx_mtx)); 2269153a5fc4SStanislaw Gruszka if (conf) { 2270153a5fc4SStanislaw Gruszka ctx = container_of(conf, struct ieee80211_chanctx, conf); 2271153a5fc4SStanislaw Gruszka drv_assign_vif_chanctx(local, sdata, ctx); 2272153a5fc4SStanislaw Gruszka } 2273153a5fc4SStanislaw Gruszka mutex_unlock(&local->chanctx_mtx); 2274153a5fc4SStanislaw Gruszka } 2275153a5fc4SStanislaw Gruszka 22761ea2c864SJohannes Berg static void ieee80211_reconfig_stations(struct ieee80211_sub_if_data *sdata) 22771ea2c864SJohannes Berg { 22781ea2c864SJohannes Berg struct ieee80211_local *local = sdata->local; 22791ea2c864SJohannes Berg struct sta_info *sta; 22801ea2c864SJohannes Berg 22811ea2c864SJohannes Berg /* add STAs back */ 22821ea2c864SJohannes Berg mutex_lock(&local->sta_mtx); 22831ea2c864SJohannes Berg list_for_each_entry(sta, &local->sta_list, list) { 22841ea2c864SJohannes Berg enum ieee80211_sta_state state; 22851ea2c864SJohannes Berg 22861ea2c864SJohannes Berg if (!sta->uploaded || sta->sdata != sdata) 22871ea2c864SJohannes Berg continue; 22881ea2c864SJohannes Berg 22891ea2c864SJohannes Berg for (state = IEEE80211_STA_NOTEXIST; 22901ea2c864SJohannes Berg state < sta->sta_state; state++) 22911ea2c864SJohannes Berg WARN_ON(drv_sta_state(local, sta->sdata, sta, state, 22921ea2c864SJohannes Berg state + 1)); 22931ea2c864SJohannes Berg } 22941ea2c864SJohannes Berg mutex_unlock(&local->sta_mtx); 22951ea2c864SJohannes Berg } 22961ea2c864SJohannes Berg 2297167e33f4SAyala Beker static int ieee80211_reconfig_nan(struct ieee80211_sub_if_data *sdata) 2298167e33f4SAyala Beker { 2299167e33f4SAyala Beker struct cfg80211_nan_func *func, **funcs; 2300167e33f4SAyala Beker int res, id, i = 0; 2301167e33f4SAyala Beker 2302167e33f4SAyala Beker res = drv_start_nan(sdata->local, sdata, 2303167e33f4SAyala Beker &sdata->u.nan.conf); 2304167e33f4SAyala Beker if (WARN_ON(res)) 2305167e33f4SAyala Beker return res; 2306167e33f4SAyala Beker 23076396bb22SKees Cook funcs = kcalloc(sdata->local->hw.max_nan_de_entries + 1, 23086396bb22SKees Cook sizeof(*funcs), 23096396bb22SKees Cook GFP_KERNEL); 2310167e33f4SAyala Beker if (!funcs) 2311167e33f4SAyala Beker return -ENOMEM; 2312167e33f4SAyala Beker 2313167e33f4SAyala Beker /* Add all the functions: 2314167e33f4SAyala Beker * This is a little bit ugly. We need to call a potentially sleeping 2315167e33f4SAyala Beker * callback for each NAN function, so we can't hold the spinlock. 2316167e33f4SAyala Beker */ 2317167e33f4SAyala Beker spin_lock_bh(&sdata->u.nan.func_lock); 2318167e33f4SAyala Beker 2319167e33f4SAyala Beker idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) 2320167e33f4SAyala Beker funcs[i++] = func; 2321167e33f4SAyala Beker 2322167e33f4SAyala Beker spin_unlock_bh(&sdata->u.nan.func_lock); 2323167e33f4SAyala Beker 2324167e33f4SAyala Beker for (i = 0; funcs[i]; i++) { 2325167e33f4SAyala Beker res = drv_add_nan_func(sdata->local, sdata, funcs[i]); 2326167e33f4SAyala Beker if (WARN_ON(res)) 2327167e33f4SAyala Beker ieee80211_nan_func_terminated(&sdata->vif, 2328167e33f4SAyala Beker funcs[i]->instance_id, 2329167e33f4SAyala Beker NL80211_NAN_FUNC_TERM_REASON_ERROR, 2330167e33f4SAyala Beker GFP_KERNEL); 2331167e33f4SAyala Beker } 2332167e33f4SAyala Beker 2333167e33f4SAyala Beker kfree(funcs); 2334167e33f4SAyala Beker 2335167e33f4SAyala Beker return 0; 2336167e33f4SAyala Beker } 2337167e33f4SAyala Beker 2338f2753ddbSJohannes Berg int ieee80211_reconfig(struct ieee80211_local *local) 2339f2753ddbSJohannes Berg { 2340f2753ddbSJohannes Berg struct ieee80211_hw *hw = &local->hw; 2341f2753ddbSJohannes Berg struct ieee80211_sub_if_data *sdata; 234255de908aSJohannes Berg struct ieee80211_chanctx *ctx; 2343f2753ddbSJohannes Berg struct sta_info *sta; 23442683d65bSEliad Peller int res, i; 2345d888130aSJohannes Berg bool reconfig_due_to_wowlan = false; 2346d43c6b6eSDavid Spinadel struct ieee80211_sub_if_data *sched_scan_sdata; 23476ea0a69cSJohannes Berg struct cfg80211_sched_scan_request *sched_scan_req; 2348d43c6b6eSDavid Spinadel bool sched_scan_stopped = false; 2349b0485e9fSEliad Peller bool suspended = local->suspended; 23507d352ccfSYoughandhar Chintala bool in_reconfig = false; 2351d888130aSJohannes Berg 23520f8b8245SEliad Peller /* nothing to do if HW shouldn't run */ 23530f8b8245SEliad Peller if (!local->open_count) 23540f8b8245SEliad Peller goto wake_up; 23550f8b8245SEliad Peller 23568f21b0adSJohannes Berg #ifdef CONFIG_PM 2357b0485e9fSEliad Peller if (suspended) 2358ceb99fe0SJohannes Berg local->resuming = true; 2359f2753ddbSJohannes Berg 2360eecc4800SJohannes Berg if (local->wowlan) { 2361b0485e9fSEliad Peller /* 2362b0485e9fSEliad Peller * In the wowlan case, both mac80211 and the device 2363b0485e9fSEliad Peller * are functional when the resume op is called, so 2364b0485e9fSEliad Peller * clear local->suspended so the device could operate 2365b0485e9fSEliad Peller * normally (e.g. pass rx frames). 2366b0485e9fSEliad Peller */ 2367b0485e9fSEliad Peller local->suspended = false; 2368eecc4800SJohannes Berg res = drv_resume(local); 236927b3eb9cSJohannes Berg local->wowlan = false; 2370eecc4800SJohannes Berg if (res < 0) { 2371eecc4800SJohannes Berg local->resuming = false; 2372eecc4800SJohannes Berg return res; 2373eecc4800SJohannes Berg } 2374eecc4800SJohannes Berg if (res == 0) 2375eecc4800SJohannes Berg goto wake_up; 2376eecc4800SJohannes Berg WARN_ON(res > 1); 2377eecc4800SJohannes Berg /* 2378eecc4800SJohannes Berg * res is 1, which means the driver requested 2379eecc4800SJohannes Berg * to go through a regular reset on wakeup. 2380b0485e9fSEliad Peller * restore local->suspended in this case. 2381eecc4800SJohannes Berg */ 2382d888130aSJohannes Berg reconfig_due_to_wowlan = true; 2383b0485e9fSEliad Peller local->suspended = true; 2384eecc4800SJohannes Berg } 2385eecc4800SJohannes Berg #endif 238694f9b97bSJohannes Berg 238724feda00SLuis R. Rodriguez /* 238843d6df00SEliad Peller * In case of hw_restart during suspend (without wowlan), 238943d6df00SEliad Peller * cancel restart work, as we are reconfiguring the device 239043d6df00SEliad Peller * anyway. 239143d6df00SEliad Peller * Note that restart_work is scheduled on a frozen workqueue, 239243d6df00SEliad Peller * so we can't deadlock in this case. 239343d6df00SEliad Peller */ 239443d6df00SEliad Peller if (suspended && local->in_reconfig && !reconfig_due_to_wowlan) 239543d6df00SEliad Peller cancel_work_sync(&local->restart_work); 239643d6df00SEliad Peller 2397968a76ceSEliad Peller local->started = false; 2398968a76ceSEliad Peller 239943d6df00SEliad Peller /* 240024feda00SLuis R. Rodriguez * Upon resume hardware can sometimes be goofy due to 240124feda00SLuis R. Rodriguez * various platform / driver / bus issues, so restarting 240224feda00SLuis R. Rodriguez * the device may at times not work immediately. Propagate 240324feda00SLuis R. Rodriguez * the error. 240424feda00SLuis R. Rodriguez */ 240524487981SJohannes Berg res = drv_start(local); 240624feda00SLuis R. Rodriguez if (res) { 2407b0485e9fSEliad Peller if (suspended) 2408f6837ba8SJohannes Berg WARN(1, "Hardware became unavailable upon resume. This could be a software issue prior to suspend or a hardware issue.\n"); 2409f6837ba8SJohannes Berg else 2410f6837ba8SJohannes Berg WARN(1, "Hardware became unavailable during restart.\n"); 2411f6837ba8SJohannes Berg ieee80211_handle_reconfig_failure(local); 241224feda00SLuis R. Rodriguez return res; 241324feda00SLuis R. Rodriguez } 2414f2753ddbSJohannes Berg 24157f281975SYogesh Ashok Powar /* setup fragmentation threshold */ 24167f281975SYogesh Ashok Powar drv_set_frag_threshold(local, hw->wiphy->frag_threshold); 24177f281975SYogesh Ashok Powar 24187f281975SYogesh Ashok Powar /* setup RTS threshold */ 24197f281975SYogesh Ashok Powar drv_set_rts_threshold(local, hw->wiphy->rts_threshold); 24207f281975SYogesh Ashok Powar 24217f281975SYogesh Ashok Powar /* reset coverage class */ 24227f281975SYogesh Ashok Powar drv_set_coverage_class(local, hw->wiphy->coverage_class); 24237f281975SYogesh Ashok Powar 24241f87f7d3SJohannes Berg ieee80211_led_radio(local, true); 242567408c8cSJohannes Berg ieee80211_mod_tpt_led_trig(local, 242667408c8cSJohannes Berg IEEE80211_TPT_LEDTRIG_FL_RADIO, 0); 2427f2753ddbSJohannes Berg 2428f2753ddbSJohannes Berg /* add interfaces */ 24296dd23603SJohannes Berg sdata = wiphy_dereference(local->hw.wiphy, local->monitor_sdata); 24304b6f1dd6SJohannes Berg if (sdata) { 24313c3e21e7SJohannes Berg /* in HW restart it exists already */ 24323c3e21e7SJohannes Berg WARN_ON(local->resuming); 24334b6f1dd6SJohannes Berg res = drv_add_interface(local, sdata); 24344b6f1dd6SJohannes Berg if (WARN_ON(res)) { 24350c2bef46SMonam Agarwal RCU_INIT_POINTER(local->monitor_sdata, NULL); 24364b6f1dd6SJohannes Berg synchronize_net(); 24374b6f1dd6SJohannes Berg kfree(sdata); 24384b6f1dd6SJohannes Berg } 24394b6f1dd6SJohannes Berg } 24404b6f1dd6SJohannes Berg 2441f2753ddbSJohannes Berg list_for_each_entry(sdata, &local->interfaces, list) { 2442f2753ddbSJohannes Berg if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 2443f2753ddbSJohannes Berg sdata->vif.type != NL80211_IFTYPE_MONITOR && 2444c8fff3dcSLuciano Coelho ieee80211_sdata_running(sdata)) { 24457b7eab6fSJohannes Berg res = drv_add_interface(local, sdata); 2446c8fff3dcSLuciano Coelho if (WARN_ON(res)) 2447c8fff3dcSLuciano Coelho break; 2448c8fff3dcSLuciano Coelho } 2449c8fff3dcSLuciano Coelho } 2450c8fff3dcSLuciano Coelho 2451c8fff3dcSLuciano Coelho /* If adding any of the interfaces failed above, roll back and 2452c8fff3dcSLuciano Coelho * report failure. 2453c8fff3dcSLuciano Coelho */ 2454c8fff3dcSLuciano Coelho if (res) { 2455c8fff3dcSLuciano Coelho list_for_each_entry_continue_reverse(sdata, &local->interfaces, 2456c8fff3dcSLuciano Coelho list) 2457c8fff3dcSLuciano Coelho if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 2458c8fff3dcSLuciano Coelho sdata->vif.type != NL80211_IFTYPE_MONITOR && 2459c8fff3dcSLuciano Coelho ieee80211_sdata_running(sdata)) 2460c8fff3dcSLuciano Coelho drv_remove_interface(local, sdata); 2461c8fff3dcSLuciano Coelho ieee80211_handle_reconfig_failure(local); 2462c8fff3dcSLuciano Coelho return res; 2463f2753ddbSJohannes Berg } 2464f2753ddbSJohannes Berg 246555de908aSJohannes Berg /* add channel contexts */ 2466f0dea9c7SArend van Spriel if (local->use_chanctx) { 246755de908aSJohannes Berg mutex_lock(&local->chanctx_mtx); 246855de908aSJohannes Berg list_for_each_entry(ctx, &local->chanctx_list, list) 24695bcae31dSMichal Kazior if (ctx->replace_state != 24705bcae31dSMichal Kazior IEEE80211_CHANCTX_REPLACES_OTHER) 247155de908aSJohannes Berg WARN_ON(drv_add_chanctx(local, ctx)); 247255de908aSJohannes Berg mutex_unlock(&local->chanctx_mtx); 247355de908aSJohannes Berg 24746dd23603SJohannes Berg sdata = wiphy_dereference(local->hw.wiphy, 24756dd23603SJohannes Berg local->monitor_sdata); 2476153a5fc4SStanislaw Gruszka if (sdata && ieee80211_sdata_running(sdata)) 2477153a5fc4SStanislaw Gruszka ieee80211_assign_chanctx(local, sdata); 24787df180f7SZhao, Gang } 2479fe5f2559SJohannes Berg 2480f2753ddbSJohannes Berg /* reconfigure hardware */ 2481f2753ddbSJohannes Berg ieee80211_hw_config(local, ~0); 2482f2753ddbSJohannes Berg 2483f2753ddbSJohannes Berg ieee80211_configure_filter(local); 2484f2753ddbSJohannes Berg 2485f2753ddbSJohannes Berg /* Finally also reconfigure all the BSS information */ 2486f2753ddbSJohannes Berg list_for_each_entry(sdata, &local->interfaces, list) { 2487ac8dd506SJohannes Berg u32 changed; 2488ac8dd506SJohannes Berg 24899607e6b6SJohannes Berg if (!ieee80211_sdata_running(sdata)) 2490f2753ddbSJohannes Berg continue; 2491ac8dd506SJohannes Berg 24921ea2c864SJohannes Berg ieee80211_assign_chanctx(local, sdata); 24931ea2c864SJohannes Berg 24941ea2c864SJohannes Berg switch (sdata->vif.type) { 24951ea2c864SJohannes Berg case NL80211_IFTYPE_AP_VLAN: 24961ea2c864SJohannes Berg case NL80211_IFTYPE_MONITOR: 24971ea2c864SJohannes Berg break; 24984926b51bSJohannes Berg case NL80211_IFTYPE_ADHOC: 24994926b51bSJohannes Berg if (sdata->vif.bss_conf.ibss_joined) 25004926b51bSJohannes Berg WARN_ON(drv_join_ibss(local, sdata)); 2501fc0561dcSGustavo A. R. Silva fallthrough; 25021ea2c864SJohannes Berg default: 25031ea2c864SJohannes Berg ieee80211_reconfig_stations(sdata); 2504fc0561dcSGustavo A. R. Silva fallthrough; 25051ea2c864SJohannes Berg case NL80211_IFTYPE_AP: /* AP stations are handled later */ 25061ea2c864SJohannes Berg for (i = 0; i < IEEE80211_NUM_ACS; i++) 25071ea2c864SJohannes Berg drv_conf_tx(local, sdata, i, 25081ea2c864SJohannes Berg &sdata->tx_conf[i]); 25091ea2c864SJohannes Berg break; 25101ea2c864SJohannes Berg } 25111ea2c864SJohannes Berg 2512ac8dd506SJohannes Berg /* common change flags for all interface types */ 2513ac8dd506SJohannes Berg changed = BSS_CHANGED_ERP_CTS_PROT | 2514ac8dd506SJohannes Berg BSS_CHANGED_ERP_PREAMBLE | 2515ac8dd506SJohannes Berg BSS_CHANGED_ERP_SLOT | 2516ac8dd506SJohannes Berg BSS_CHANGED_HT | 2517ac8dd506SJohannes Berg BSS_CHANGED_BASIC_RATES | 2518ac8dd506SJohannes Berg BSS_CHANGED_BEACON_INT | 2519ac8dd506SJohannes Berg BSS_CHANGED_BSSID | 25204ced3f74SJohannes Berg BSS_CHANGED_CQM | 252155de47f6SEliad Peller BSS_CHANGED_QOS | 25221ea6f9c0SJohannes Berg BSS_CHANGED_IDLE | 2523dcbe73caSPradeep Kumar Chitrapu BSS_CHANGED_TXPOWER | 2524dcbe73caSPradeep Kumar Chitrapu BSS_CHANGED_MCAST_RATE; 2525ac8dd506SJohannes Berg 2526b5a33d52SSara Sharon if (sdata->vif.mu_mimo_owner) 252723a1f8d4SSara Sharon changed |= BSS_CHANGED_MU_GROUPS; 252823a1f8d4SSara Sharon 2529f2753ddbSJohannes Berg switch (sdata->vif.type) { 2530f2753ddbSJohannes Berg case NL80211_IFTYPE_STATION: 25310d392e93SEliad Peller changed |= BSS_CHANGED_ASSOC | 2532ab095877SEliad Peller BSS_CHANGED_ARP_FILTER | 2533ab095877SEliad Peller BSS_CHANGED_PS; 2534c65dd147SEmmanuel Grumbach 2535989c6505SAlexander Bondar /* Re-send beacon info report to the driver */ 2536989c6505SAlexander Bondar if (sdata->u.mgd.have_beacon) 2537989c6505SAlexander Bondar changed |= BSS_CHANGED_BEACON_INFO; 2538c65dd147SEmmanuel Grumbach 2539e38a017bSAvraham Stern if (sdata->vif.bss_conf.max_idle_period || 2540e38a017bSAvraham Stern sdata->vif.bss_conf.protected_keep_alive) 2541e38a017bSAvraham Stern changed |= BSS_CHANGED_KEEP_ALIVE; 2542e38a017bSAvraham Stern 25438d61ffa5SJohannes Berg sdata_lock(sdata); 2544ac8dd506SJohannes Berg ieee80211_bss_info_change_notify(sdata, changed); 25458d61ffa5SJohannes Berg sdata_unlock(sdata); 2546ac8dd506SJohannes Berg break; 25476e0bd6c3SRostislav Lisovy case NL80211_IFTYPE_OCB: 2548239281f8SRostislav Lisovy changed |= BSS_CHANGED_OCB; 2549239281f8SRostislav Lisovy ieee80211_bss_info_change_notify(sdata, changed); 25506e0bd6c3SRostislav Lisovy break; 2551f2753ddbSJohannes Berg case NL80211_IFTYPE_ADHOC: 2552ac8dd506SJohannes Berg changed |= BSS_CHANGED_IBSS; 2553fc0561dcSGustavo A. R. Silva fallthrough; 2554f2753ddbSJohannes Berg case NL80211_IFTYPE_AP: 2555339afbf4SJohannes Berg changed |= BSS_CHANGED_SSID | BSS_CHANGED_P2P_PS; 2556e7979ac7SArik Nemtsov 2557bc847970SPradeep Kumar Chitrapu if (sdata->vif.bss_conf.ftm_responder == 1 && 2558bc847970SPradeep Kumar Chitrapu wiphy_ext_feature_isset(sdata->local->hw.wiphy, 2559bc847970SPradeep Kumar Chitrapu NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER)) 2560bc847970SPradeep Kumar Chitrapu changed |= BSS_CHANGED_FTM_RESPONDER; 2561bc847970SPradeep Kumar Chitrapu 25621041638fSJohannes Berg if (sdata->vif.type == NL80211_IFTYPE_AP) { 2563e7979ac7SArik Nemtsov changed |= BSS_CHANGED_AP_PROBE_RESP; 2564e7979ac7SArik Nemtsov 25651041638fSJohannes Berg if (rcu_access_pointer(sdata->u.ap.beacon)) 25661041638fSJohannes Berg drv_start_ap(local, sdata); 25671041638fSJohannes Berg } 2568fc0561dcSGustavo A. R. Silva fallthrough; 2569f2753ddbSJohannes Berg case NL80211_IFTYPE_MESH_POINT: 25708da34932SJohannes Berg if (sdata->vif.bss_conf.enable_beacon) { 2571ac8dd506SJohannes Berg changed |= BSS_CHANGED_BEACON | 2572ac8dd506SJohannes Berg BSS_CHANGED_BEACON_ENABLED; 25732d0ddec5SJohannes Berg ieee80211_bss_info_change_notify(sdata, changed); 25748da34932SJohannes Berg } 2575f2753ddbSJohannes Berg break; 2576167e33f4SAyala Beker case NL80211_IFTYPE_NAN: 2577167e33f4SAyala Beker res = ieee80211_reconfig_nan(sdata); 2578167e33f4SAyala Beker if (res < 0) { 2579167e33f4SAyala Beker ieee80211_handle_reconfig_failure(local); 2580167e33f4SAyala Beker return res; 2581167e33f4SAyala Beker } 2582167e33f4SAyala Beker break; 2583f2753ddbSJohannes Berg case NL80211_IFTYPE_AP_VLAN: 2584f2753ddbSJohannes Berg case NL80211_IFTYPE_MONITOR: 258598104fdeSJohannes Berg case NL80211_IFTYPE_P2P_DEVICE: 2586b205786eSZhao, Gang /* nothing to do */ 2587f142c6b9SJohannes Berg break; 2588f2753ddbSJohannes Berg case NL80211_IFTYPE_UNSPECIFIED: 25892e161f78SJohannes Berg case NUM_NL80211_IFTYPES: 25902ca27bcfSJohannes Berg case NL80211_IFTYPE_P2P_CLIENT: 25912ca27bcfSJohannes Berg case NL80211_IFTYPE_P2P_GO: 259270d9c599SJohannes Berg case NL80211_IFTYPE_WDS: 2593f2753ddbSJohannes Berg WARN_ON(1); 2594f2753ddbSJohannes Berg break; 2595f2753ddbSJohannes Berg } 2596f2753ddbSJohannes Berg } 2597f2753ddbSJohannes Berg 25984a733ef1SJohannes Berg ieee80211_recalc_ps(local); 25998e1b23b9SEyal Shapira 26002a419056SJohannes Berg /* 26016e1b1b24SEliad Peller * The sta might be in psm against the ap (e.g. because 26026e1b1b24SEliad Peller * this was the state before a hw restart), so we 26036e1b1b24SEliad Peller * explicitly send a null packet in order to make sure 26046e1b1b24SEliad Peller * it'll sync against the ap (and get out of psm). 26056e1b1b24SEliad Peller */ 26066e1b1b24SEliad Peller if (!(local->hw.conf.flags & IEEE80211_CONF_PS)) { 26076e1b1b24SEliad Peller list_for_each_entry(sdata, &local->interfaces, list) { 26086e1b1b24SEliad Peller if (sdata->vif.type != NL80211_IFTYPE_STATION) 26096e1b1b24SEliad Peller continue; 261020f544eeSJohannes Berg if (!sdata->u.mgd.associated) 261120f544eeSJohannes Berg continue; 26126e1b1b24SEliad Peller 2613076cdcb1SJohannes Berg ieee80211_send_nullfunc(local, sdata, false); 26146e1b1b24SEliad Peller } 26156e1b1b24SEliad Peller } 26166e1b1b24SEliad Peller 26172e8d397eSArik Nemtsov /* APs are now beaconing, add back stations */ 26182e8d397eSArik Nemtsov mutex_lock(&local->sta_mtx); 26192e8d397eSArik Nemtsov list_for_each_entry(sta, &local->sta_list, list) { 26202e8d397eSArik Nemtsov enum ieee80211_sta_state state; 26212e8d397eSArik Nemtsov 26222e8d397eSArik Nemtsov if (!sta->uploaded) 26232e8d397eSArik Nemtsov continue; 26242e8d397eSArik Nemtsov 262519103a4bSmpubbise@codeaurora.org if (sta->sdata->vif.type != NL80211_IFTYPE_AP && 262619103a4bSmpubbise@codeaurora.org sta->sdata->vif.type != NL80211_IFTYPE_AP_VLAN) 26272e8d397eSArik Nemtsov continue; 26282e8d397eSArik Nemtsov 26292e8d397eSArik Nemtsov for (state = IEEE80211_STA_NOTEXIST; 26302e8d397eSArik Nemtsov state < sta->sta_state; state++) 26312e8d397eSArik Nemtsov WARN_ON(drv_sta_state(local, sta->sdata, sta, state, 26322e8d397eSArik Nemtsov state + 1)); 26332e8d397eSArik Nemtsov } 26342e8d397eSArik Nemtsov mutex_unlock(&local->sta_mtx); 26352e8d397eSArik Nemtsov 26367b21aea0SEyal Shapira /* add back keys */ 26377b21aea0SEyal Shapira list_for_each_entry(sdata, &local->interfaces, list) 2638624ff4b2SLior Cohen ieee80211_reenable_keys(sdata); 26397b21aea0SEyal Shapira 26400d440ea2SEliad Peller /* Reconfigure sched scan if it was interrupted by FW restart */ 26410d440ea2SEliad Peller mutex_lock(&local->mtx); 26420d440ea2SEliad Peller sched_scan_sdata = rcu_dereference_protected(local->sched_scan_sdata, 26430d440ea2SEliad Peller lockdep_is_held(&local->mtx)); 26440d440ea2SEliad Peller sched_scan_req = rcu_dereference_protected(local->sched_scan_req, 26450d440ea2SEliad Peller lockdep_is_held(&local->mtx)); 26460d440ea2SEliad Peller if (sched_scan_sdata && sched_scan_req) 26470d440ea2SEliad Peller /* 26480d440ea2SEliad Peller * Sched scan stopped, but we don't want to report it. Instead, 26490d440ea2SEliad Peller * we're trying to reschedule. However, if more than one scan 26500d440ea2SEliad Peller * plan was set, we cannot reschedule since we don't know which 26510d440ea2SEliad Peller * scan plan was currently running (and some scan plans may have 26520d440ea2SEliad Peller * already finished). 26530d440ea2SEliad Peller */ 26540d440ea2SEliad Peller if (sched_scan_req->n_scan_plans > 1 || 26550d440ea2SEliad Peller __ieee80211_request_sched_scan_start(sched_scan_sdata, 2656b9f628fcSEliad Peller sched_scan_req)) { 2657b9f628fcSEliad Peller RCU_INIT_POINTER(local->sched_scan_sdata, NULL); 2658b9f628fcSEliad Peller RCU_INIT_POINTER(local->sched_scan_req, NULL); 26590d440ea2SEliad Peller sched_scan_stopped = true; 2660b9f628fcSEliad Peller } 26610d440ea2SEliad Peller mutex_unlock(&local->mtx); 26620d440ea2SEliad Peller 26630d440ea2SEliad Peller if (sched_scan_stopped) 2664a05829a7SJohannes Berg cfg80211_sched_scan_stopped_locked(local->hw.wiphy, 0); 26650d440ea2SEliad Peller 2666c6209488SEliad Peller wake_up: 2667470f4d61SEliad Peller 26683c3e21e7SJohannes Berg if (local->monitors == local->open_count && local->monitors > 0) 26693c3e21e7SJohannes Berg ieee80211_add_virtual_monitor(local); 26703c3e21e7SJohannes Berg 26716e1b1b24SEliad Peller /* 26722a419056SJohannes Berg * Clear the WLAN_STA_BLOCK_BA flag so new aggregation 26732a419056SJohannes Berg * sessions can be established after a resume. 26742a419056SJohannes Berg * 26752a419056SJohannes Berg * Also tear down aggregation sessions since reconfiguring 26762a419056SJohannes Berg * them in a hardware restart scenario is not easily done 26772a419056SJohannes Berg * right now, and the hardware will have lost information 26782a419056SJohannes Berg * about the sessions, but we and the AP still think they 26792a419056SJohannes Berg * are active. This is really a workaround though. 26802a419056SJohannes Berg */ 268130686bf7SJohannes Berg if (ieee80211_hw_check(hw, AMPDU_AGGREGATION)) { 26822a419056SJohannes Berg mutex_lock(&local->sta_mtx); 26832a419056SJohannes Berg 26842a419056SJohannes Berg list_for_each_entry(sta, &local->sta_list, list) { 268527392719SEliad Peller if (!local->resuming) 2686c82c4a80SJohannes Berg ieee80211_sta_tear_down_BA_sessions( 2687c82c4a80SJohannes Berg sta, AGG_STOP_LOCAL_REQUEST); 2688c2c98fdeSJohannes Berg clear_sta_flag(sta, WLAN_STA_BLOCK_BA); 268974e2bd1fSWey-Yi Guy } 26902a419056SJohannes Berg 26912a419056SJohannes Berg mutex_unlock(&local->sta_mtx); 269274e2bd1fSWey-Yi Guy } 269374e2bd1fSWey-Yi Guy 269413dee10bSJohannes Berg /* 269513dee10bSJohannes Berg * If this is for hw restart things are still running. 269613dee10bSJohannes Berg * We may want to change that later, however. 269713dee10bSJohannes Berg */ 269813dee10bSJohannes Berg if (local->open_count && (!suspended || reconfig_due_to_wowlan)) 269913dee10bSJohannes Berg drv_reconfig_complete(local, IEEE80211_RECONFIG_TYPE_RESTART); 270013dee10bSJohannes Berg 27012316380fSSara Sharon if (local->in_reconfig) { 27027d352ccfSYoughandhar Chintala in_reconfig = local->in_reconfig; 27032316380fSSara Sharon local->in_reconfig = false; 27042316380fSSara Sharon barrier(); 27052316380fSSara Sharon 27062316380fSSara Sharon /* Restart deferred ROCs */ 27072316380fSSara Sharon mutex_lock(&local->mtx); 27082316380fSSara Sharon ieee80211_start_next_roc(local); 27092316380fSSara Sharon mutex_unlock(&local->mtx); 2710f8891461SNaftali Goldstein 2711f8891461SNaftali Goldstein /* Requeue all works */ 2712f8891461SNaftali Goldstein list_for_each_entry(sdata, &local->interfaces, list) 2713f8891461SNaftali Goldstein ieee80211_queue_work(&local->hw, &sdata->work); 27142316380fSSara Sharon } 27152316380fSSara Sharon 2716445ea4e8SJohannes Berg ieee80211_wake_queues_by_reason(hw, IEEE80211_MAX_QUEUE_MAP, 2717cca07b00SLuciano Coelho IEEE80211_QUEUE_STOP_REASON_SUSPEND, 2718cca07b00SLuciano Coelho false); 2719f2753ddbSJohannes Berg 27207d352ccfSYoughandhar Chintala if (in_reconfig) { 27217d352ccfSYoughandhar Chintala list_for_each_entry(sdata, &local->interfaces, list) { 27227d352ccfSYoughandhar Chintala if (!ieee80211_sdata_running(sdata)) 27237d352ccfSYoughandhar Chintala continue; 27247d352ccfSYoughandhar Chintala if (sdata->vif.type == NL80211_IFTYPE_STATION) 27257d352ccfSYoughandhar Chintala ieee80211_sta_restart(sdata); 27267d352ccfSYoughandhar Chintala } 27277d352ccfSYoughandhar Chintala } 27287d352ccfSYoughandhar Chintala 2729b0485e9fSEliad Peller if (!suspended) 27305bb644a0SJohannes Berg return 0; 27315bb644a0SJohannes Berg 27325bb644a0SJohannes Berg #ifdef CONFIG_PM 2733ceb99fe0SJohannes Berg /* first set suspended false, then resuming */ 27345bb644a0SJohannes Berg local->suspended = false; 2735ceb99fe0SJohannes Berg mb(); 2736ceb99fe0SJohannes Berg local->resuming = false; 27375bb644a0SJohannes Berg 273874430f94SJohannes Berg ieee80211_flush_completed_scan(local, false); 27399120d94eSLuciano Coelho 27400f8b8245SEliad Peller if (local->open_count && !reconfig_due_to_wowlan) 2741cf2c92d8SEliad Peller drv_reconfig_complete(local, IEEE80211_RECONFIG_TYPE_SUSPEND); 2742cf2c92d8SEliad Peller 2743b8360ab8SJohannes Berg list_for_each_entry(sdata, &local->interfaces, list) { 2744b8360ab8SJohannes Berg if (!ieee80211_sdata_running(sdata)) 2745b8360ab8SJohannes Berg continue; 2746b8360ab8SJohannes Berg if (sdata->vif.type == NL80211_IFTYPE_STATION) 2747b8360ab8SJohannes Berg ieee80211_sta_restart(sdata); 2748b8360ab8SJohannes Berg } 2749b8360ab8SJohannes Berg 275026d59535SJohannes Berg mod_timer(&local->sta_cleanup, jiffies + 1); 27515bb644a0SJohannes Berg #else 27525bb644a0SJohannes Berg WARN_ON(1); 27535bb644a0SJohannes Berg #endif 2754d43c6b6eSDavid Spinadel 2755f2753ddbSJohannes Berg return 0; 2756f2753ddbSJohannes Berg } 275742935ecaSLuis R. Rodriguez 27587d352ccfSYoughandhar Chintala static void ieee80211_reconfig_disconnect(struct ieee80211_vif *vif, u8 flag) 275995acac61SJohannes Berg { 276095acac61SJohannes Berg struct ieee80211_sub_if_data *sdata; 276195acac61SJohannes Berg struct ieee80211_local *local; 276295acac61SJohannes Berg struct ieee80211_key *key; 276395acac61SJohannes Berg 276495acac61SJohannes Berg if (WARN_ON(!vif)) 276595acac61SJohannes Berg return; 276695acac61SJohannes Berg 276795acac61SJohannes Berg sdata = vif_to_sdata(vif); 276895acac61SJohannes Berg local = sdata->local; 276995acac61SJohannes Berg 27707d352ccfSYoughandhar Chintala if (WARN_ON(flag & IEEE80211_SDATA_DISCONNECT_RESUME && 27717d352ccfSYoughandhar Chintala !local->resuming)) 27727d352ccfSYoughandhar Chintala return; 27737d352ccfSYoughandhar Chintala 27747d352ccfSYoughandhar Chintala if (WARN_ON(flag & IEEE80211_SDATA_DISCONNECT_HW_RESTART && 27757d352ccfSYoughandhar Chintala !local->in_reconfig)) 277695acac61SJohannes Berg return; 277795acac61SJohannes Berg 277895acac61SJohannes Berg if (WARN_ON(vif->type != NL80211_IFTYPE_STATION)) 277995acac61SJohannes Berg return; 278095acac61SJohannes Berg 27817d352ccfSYoughandhar Chintala sdata->flags |= flag; 278295acac61SJohannes Berg 278395acac61SJohannes Berg mutex_lock(&local->key_mtx); 278495acac61SJohannes Berg list_for_each_entry(key, &sdata->key_list, list) 278595acac61SJohannes Berg key->flags |= KEY_FLAG_TAINTED; 278695acac61SJohannes Berg mutex_unlock(&local->key_mtx); 278795acac61SJohannes Berg } 27887d352ccfSYoughandhar Chintala 27897d352ccfSYoughandhar Chintala void ieee80211_hw_restart_disconnect(struct ieee80211_vif *vif) 27907d352ccfSYoughandhar Chintala { 27917d352ccfSYoughandhar Chintala ieee80211_reconfig_disconnect(vif, IEEE80211_SDATA_DISCONNECT_HW_RESTART); 27927d352ccfSYoughandhar Chintala } 27937d352ccfSYoughandhar Chintala EXPORT_SYMBOL_GPL(ieee80211_hw_restart_disconnect); 27947d352ccfSYoughandhar Chintala 27957d352ccfSYoughandhar Chintala void ieee80211_resume_disconnect(struct ieee80211_vif *vif) 27967d352ccfSYoughandhar Chintala { 27977d352ccfSYoughandhar Chintala ieee80211_reconfig_disconnect(vif, IEEE80211_SDATA_DISCONNECT_RESUME); 27987d352ccfSYoughandhar Chintala } 279995acac61SJohannes Berg EXPORT_SYMBOL_GPL(ieee80211_resume_disconnect); 280095acac61SJohannes Berg 280104ecd257SJohannes Berg void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata) 28020f78231bSJohannes Berg { 280304ecd257SJohannes Berg struct ieee80211_local *local = sdata->local; 280404ecd257SJohannes Berg struct ieee80211_chanctx_conf *chanctx_conf; 280504ecd257SJohannes Berg struct ieee80211_chanctx *chanctx; 28060f78231bSJohannes Berg 280704ecd257SJohannes Berg mutex_lock(&local->chanctx_mtx); 28080f78231bSJohannes Berg 280904ecd257SJohannes Berg chanctx_conf = rcu_dereference_protected(sdata->vif.chanctx_conf, 281004ecd257SJohannes Berg lockdep_is_held(&local->chanctx_mtx)); 28110f78231bSJohannes Berg 2812c189a685SAndrei Otcheretianski /* 2813c189a685SAndrei Otcheretianski * This function can be called from a work, thus it may be possible 2814c189a685SAndrei Otcheretianski * that the chanctx_conf is removed (due to a disconnection, for 2815c189a685SAndrei Otcheretianski * example). 2816c189a685SAndrei Otcheretianski * So nothing should be done in such case. 2817c189a685SAndrei Otcheretianski */ 2818c189a685SAndrei Otcheretianski if (!chanctx_conf) 28195d8e4237SJohannes Berg goto unlock; 28200f78231bSJohannes Berg 282104ecd257SJohannes Berg chanctx = container_of(chanctx_conf, struct ieee80211_chanctx, conf); 282204ecd257SJohannes Berg ieee80211_recalc_smps_chanctx(local, chanctx); 28235d8e4237SJohannes Berg unlock: 282404ecd257SJohannes Berg mutex_unlock(&local->chanctx_mtx); 28250f78231bSJohannes Berg } 28268e664fb3SJohannes Berg 282721f659bfSEliad Peller void ieee80211_recalc_min_chandef(struct ieee80211_sub_if_data *sdata) 282821f659bfSEliad Peller { 282921f659bfSEliad Peller struct ieee80211_local *local = sdata->local; 283021f659bfSEliad Peller struct ieee80211_chanctx_conf *chanctx_conf; 283121f659bfSEliad Peller struct ieee80211_chanctx *chanctx; 283221f659bfSEliad Peller 283321f659bfSEliad Peller mutex_lock(&local->chanctx_mtx); 283421f659bfSEliad Peller 283521f659bfSEliad Peller chanctx_conf = rcu_dereference_protected(sdata->vif.chanctx_conf, 283621f659bfSEliad Peller lockdep_is_held(&local->chanctx_mtx)); 283721f659bfSEliad Peller 283821f659bfSEliad Peller if (WARN_ON_ONCE(!chanctx_conf)) 283921f659bfSEliad Peller goto unlock; 284021f659bfSEliad Peller 284121f659bfSEliad Peller chanctx = container_of(chanctx_conf, struct ieee80211_chanctx, conf); 284221f659bfSEliad Peller ieee80211_recalc_chanctx_min_def(local, chanctx); 284321f659bfSEliad Peller unlock: 284421f659bfSEliad Peller mutex_unlock(&local->chanctx_mtx); 284521f659bfSEliad Peller } 284621f659bfSEliad Peller 28478e664fb3SJohannes Berg size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset) 28488e664fb3SJohannes Berg { 28498e664fb3SJohannes Berg size_t pos = offset; 28508e664fb3SJohannes Berg 28518e664fb3SJohannes Berg while (pos < ielen && ies[pos] != WLAN_EID_VENDOR_SPECIFIC) 28528e664fb3SJohannes Berg pos += 2 + ies[pos + 1]; 28538e664fb3SJohannes Berg 28548e664fb3SJohannes Berg return pos; 28558e664fb3SJohannes Berg } 2856615f7b9bSMeenakshi Venkataraman 2857ef96a842SBen Greear u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap, 285842e7aa77SAlexander Simon u16 cap) 285942e7aa77SAlexander Simon { 286042e7aa77SAlexander Simon __le16 tmp; 286142e7aa77SAlexander Simon 286242e7aa77SAlexander Simon *pos++ = WLAN_EID_HT_CAPABILITY; 286342e7aa77SAlexander Simon *pos++ = sizeof(struct ieee80211_ht_cap); 286442e7aa77SAlexander Simon memset(pos, 0, sizeof(struct ieee80211_ht_cap)); 286542e7aa77SAlexander Simon 286642e7aa77SAlexander Simon /* capability flags */ 286742e7aa77SAlexander Simon tmp = cpu_to_le16(cap); 286842e7aa77SAlexander Simon memcpy(pos, &tmp, sizeof(u16)); 286942e7aa77SAlexander Simon pos += sizeof(u16); 287042e7aa77SAlexander Simon 287142e7aa77SAlexander Simon /* AMPDU parameters */ 2872ef96a842SBen Greear *pos++ = ht_cap->ampdu_factor | 2873ef96a842SBen Greear (ht_cap->ampdu_density << 287442e7aa77SAlexander Simon IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT); 287542e7aa77SAlexander Simon 287642e7aa77SAlexander Simon /* MCS set */ 2877ef96a842SBen Greear memcpy(pos, &ht_cap->mcs, sizeof(ht_cap->mcs)); 2878ef96a842SBen Greear pos += sizeof(ht_cap->mcs); 287942e7aa77SAlexander Simon 288042e7aa77SAlexander Simon /* extended capabilities */ 288142e7aa77SAlexander Simon pos += sizeof(__le16); 288242e7aa77SAlexander Simon 288342e7aa77SAlexander Simon /* BF capabilities */ 288442e7aa77SAlexander Simon pos += sizeof(__le32); 288542e7aa77SAlexander Simon 288642e7aa77SAlexander Simon /* antenna selection */ 288742e7aa77SAlexander Simon pos += sizeof(u8); 288842e7aa77SAlexander Simon 288942e7aa77SAlexander Simon return pos; 289042e7aa77SAlexander Simon } 289142e7aa77SAlexander Simon 2892ba0afa2fSMahesh Palivela u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap, 2893ba0afa2fSMahesh Palivela u32 cap) 2894ba0afa2fSMahesh Palivela { 2895ba0afa2fSMahesh Palivela __le32 tmp; 2896ba0afa2fSMahesh Palivela 2897ba0afa2fSMahesh Palivela *pos++ = WLAN_EID_VHT_CAPABILITY; 2898d4950281SMahesh Palivela *pos++ = sizeof(struct ieee80211_vht_cap); 2899d4950281SMahesh Palivela memset(pos, 0, sizeof(struct ieee80211_vht_cap)); 2900ba0afa2fSMahesh Palivela 2901ba0afa2fSMahesh Palivela /* capability flags */ 2902ba0afa2fSMahesh Palivela tmp = cpu_to_le32(cap); 2903ba0afa2fSMahesh Palivela memcpy(pos, &tmp, sizeof(u32)); 2904ba0afa2fSMahesh Palivela pos += sizeof(u32); 2905ba0afa2fSMahesh Palivela 2906ba0afa2fSMahesh Palivela /* VHT MCS set */ 2907ba0afa2fSMahesh Palivela memcpy(pos, &vht_cap->vht_mcs, sizeof(vht_cap->vht_mcs)); 2908ba0afa2fSMahesh Palivela pos += sizeof(vht_cap->vht_mcs); 2909ba0afa2fSMahesh Palivela 2910ba0afa2fSMahesh Palivela return pos; 2911ba0afa2fSMahesh Palivela } 2912ba0afa2fSMahesh Palivela 291360ad72daSSven Eckelmann u8 ieee80211_ie_len_he_cap(struct ieee80211_sub_if_data *sdata, u8 iftype) 291460ad72daSSven Eckelmann { 291560ad72daSSven Eckelmann const struct ieee80211_sta_he_cap *he_cap; 291660ad72daSSven Eckelmann struct ieee80211_supported_band *sband; 291760ad72daSSven Eckelmann u8 n; 291860ad72daSSven Eckelmann 291960ad72daSSven Eckelmann sband = ieee80211_get_sband(sdata); 292060ad72daSSven Eckelmann if (!sband) 292160ad72daSSven Eckelmann return 0; 292260ad72daSSven Eckelmann 292360ad72daSSven Eckelmann he_cap = ieee80211_get_he_iftype_cap(sband, iftype); 292460ad72daSSven Eckelmann if (!he_cap) 292560ad72daSSven Eckelmann return 0; 292660ad72daSSven Eckelmann 292760ad72daSSven Eckelmann n = ieee80211_he_mcs_nss_size(&he_cap->he_cap_elem); 292860ad72daSSven Eckelmann return 2 + 1 + 292960ad72daSSven Eckelmann sizeof(he_cap->he_cap_elem) + n + 293060ad72daSSven Eckelmann ieee80211_he_ppe_size(he_cap->ppe_thres[0], 293160ad72daSSven Eckelmann he_cap->he_cap_elem.phy_cap_info); 293260ad72daSSven Eckelmann } 293360ad72daSSven Eckelmann 29341f2c1044SJohannes Berg u8 *ieee80211_ie_build_he_cap(u32 disable_flags, u8 *pos, 293541cbb0f5SLuca Coelho const struct ieee80211_sta_he_cap *he_cap, 293641cbb0f5SLuca Coelho u8 *end) 293741cbb0f5SLuca Coelho { 29381f2c1044SJohannes Berg struct ieee80211_he_cap_elem elem; 293941cbb0f5SLuca Coelho u8 n; 294041cbb0f5SLuca Coelho u8 ie_len; 294141cbb0f5SLuca Coelho u8 *orig_pos = pos; 294241cbb0f5SLuca Coelho 294341cbb0f5SLuca Coelho /* Make sure we have place for the IE */ 294441cbb0f5SLuca Coelho /* 294541cbb0f5SLuca Coelho * TODO: the 1 added is because this temporarily is under the EXTENSION 294641cbb0f5SLuca Coelho * IE. Get rid of it when it moves. 294741cbb0f5SLuca Coelho */ 294841cbb0f5SLuca Coelho if (!he_cap) 294941cbb0f5SLuca Coelho return orig_pos; 295041cbb0f5SLuca Coelho 29511f2c1044SJohannes Berg /* modify on stack first to calculate 'n' and 'ie_len' correctly */ 29521f2c1044SJohannes Berg elem = he_cap->he_cap_elem; 29531f2c1044SJohannes Berg 29541f2c1044SJohannes Berg if (disable_flags & IEEE80211_STA_DISABLE_40MHZ) 29551f2c1044SJohannes Berg elem.phy_cap_info[0] &= 29561f2c1044SJohannes Berg ~(IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G | 29571f2c1044SJohannes Berg IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G); 29581f2c1044SJohannes Berg 29591f2c1044SJohannes Berg if (disable_flags & IEEE80211_STA_DISABLE_160MHZ) 29601f2c1044SJohannes Berg elem.phy_cap_info[0] &= 29611f2c1044SJohannes Berg ~IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G; 29621f2c1044SJohannes Berg 29631f2c1044SJohannes Berg if (disable_flags & IEEE80211_STA_DISABLE_80P80MHZ) 29641f2c1044SJohannes Berg elem.phy_cap_info[0] &= 29651f2c1044SJohannes Berg ~IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G; 29661f2c1044SJohannes Berg 29671f2c1044SJohannes Berg n = ieee80211_he_mcs_nss_size(&elem); 296841cbb0f5SLuca Coelho ie_len = 2 + 1 + 296941cbb0f5SLuca Coelho sizeof(he_cap->he_cap_elem) + n + 297041cbb0f5SLuca Coelho ieee80211_he_ppe_size(he_cap->ppe_thres[0], 297141cbb0f5SLuca Coelho he_cap->he_cap_elem.phy_cap_info); 297241cbb0f5SLuca Coelho 297341cbb0f5SLuca Coelho if ((end - pos) < ie_len) 297441cbb0f5SLuca Coelho return orig_pos; 297541cbb0f5SLuca Coelho 297641cbb0f5SLuca Coelho *pos++ = WLAN_EID_EXTENSION; 297741cbb0f5SLuca Coelho pos++; /* We'll set the size later below */ 297841cbb0f5SLuca Coelho *pos++ = WLAN_EID_EXT_HE_CAPABILITY; 297941cbb0f5SLuca Coelho 298041cbb0f5SLuca Coelho /* Fixed data */ 29811f2c1044SJohannes Berg memcpy(pos, &elem, sizeof(elem)); 29821f2c1044SJohannes Berg pos += sizeof(elem); 298341cbb0f5SLuca Coelho 298441cbb0f5SLuca Coelho memcpy(pos, &he_cap->he_mcs_nss_supp, n); 298541cbb0f5SLuca Coelho pos += n; 298641cbb0f5SLuca Coelho 298741cbb0f5SLuca Coelho /* Check if PPE Threshold should be present */ 298841cbb0f5SLuca Coelho if ((he_cap->he_cap_elem.phy_cap_info[6] & 298941cbb0f5SLuca Coelho IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) == 0) 299041cbb0f5SLuca Coelho goto end; 299141cbb0f5SLuca Coelho 299241cbb0f5SLuca Coelho /* 299341cbb0f5SLuca Coelho * Calculate how many PPET16/PPET8 pairs are to come. Algorithm: 299441cbb0f5SLuca Coelho * (NSS_M1 + 1) x (num of 1 bits in RU_INDEX_BITMASK) 299541cbb0f5SLuca Coelho */ 299641cbb0f5SLuca Coelho n = hweight8(he_cap->ppe_thres[0] & 299741cbb0f5SLuca Coelho IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK); 299841cbb0f5SLuca Coelho n *= (1 + ((he_cap->ppe_thres[0] & IEEE80211_PPE_THRES_NSS_MASK) >> 299941cbb0f5SLuca Coelho IEEE80211_PPE_THRES_NSS_POS)); 300041cbb0f5SLuca Coelho 300141cbb0f5SLuca Coelho /* 300241cbb0f5SLuca Coelho * Each pair is 6 bits, and we need to add the 7 "header" bits to the 300341cbb0f5SLuca Coelho * total size. 300441cbb0f5SLuca Coelho */ 300541cbb0f5SLuca Coelho n = (n * IEEE80211_PPE_THRES_INFO_PPET_SIZE * 2) + 7; 300641cbb0f5SLuca Coelho n = DIV_ROUND_UP(n, 8); 300741cbb0f5SLuca Coelho 300841cbb0f5SLuca Coelho /* Copy PPE Thresholds */ 300941cbb0f5SLuca Coelho memcpy(pos, &he_cap->ppe_thres, n); 301041cbb0f5SLuca Coelho pos += n; 301141cbb0f5SLuca Coelho 301241cbb0f5SLuca Coelho end: 301341cbb0f5SLuca Coelho orig_pos[1] = (pos - orig_pos) - 2; 301441cbb0f5SLuca Coelho return pos; 301541cbb0f5SLuca Coelho } 301641cbb0f5SLuca Coelho 301724a2042cSRajkumar Manoharan void ieee80211_ie_build_he_6ghz_cap(struct ieee80211_sub_if_data *sdata, 301824a2042cSRajkumar Manoharan struct sk_buff *skb) 301924a2042cSRajkumar Manoharan { 302024a2042cSRajkumar Manoharan struct ieee80211_supported_band *sband; 302124a2042cSRajkumar Manoharan const struct ieee80211_sband_iftype_data *iftd; 302224a2042cSRajkumar Manoharan enum nl80211_iftype iftype = ieee80211_vif_type_p2p(&sdata->vif); 302324a2042cSRajkumar Manoharan u8 *pos; 302424a2042cSRajkumar Manoharan u16 cap; 302524a2042cSRajkumar Manoharan 302665be6aa3SJohannes Berg if (!cfg80211_any_usable_channels(sdata->local->hw.wiphy, 302765be6aa3SJohannes Berg BIT(NL80211_BAND_6GHZ), 302865be6aa3SJohannes Berg IEEE80211_CHAN_NO_HE)) 302924a2042cSRajkumar Manoharan return; 303024a2042cSRajkumar Manoharan 303165be6aa3SJohannes Berg sband = sdata->local->hw.wiphy->bands[NL80211_BAND_6GHZ]; 303265be6aa3SJohannes Berg 303324a2042cSRajkumar Manoharan iftd = ieee80211_get_sband_iftype_data(sband, iftype); 303465be6aa3SJohannes Berg if (!iftd) 303524a2042cSRajkumar Manoharan return; 303624a2042cSRajkumar Manoharan 303765ad3ef9SRajkumar Manoharan /* Check for device HE 6 GHz capability before adding element */ 303865ad3ef9SRajkumar Manoharan if (!iftd->he_6ghz_capa.capa) 303965ad3ef9SRajkumar Manoharan return; 304065ad3ef9SRajkumar Manoharan 304124a2042cSRajkumar Manoharan cap = le16_to_cpu(iftd->he_6ghz_capa.capa); 304224a2042cSRajkumar Manoharan cap &= ~IEEE80211_HE_6GHZ_CAP_SM_PS; 304324a2042cSRajkumar Manoharan 304424a2042cSRajkumar Manoharan switch (sdata->smps_mode) { 304524a2042cSRajkumar Manoharan case IEEE80211_SMPS_AUTOMATIC: 304624a2042cSRajkumar Manoharan case IEEE80211_SMPS_NUM_MODES: 304724a2042cSRajkumar Manoharan WARN_ON(1); 3048fc0561dcSGustavo A. R. Silva fallthrough; 304924a2042cSRajkumar Manoharan case IEEE80211_SMPS_OFF: 305024a2042cSRajkumar Manoharan cap |= u16_encode_bits(WLAN_HT_CAP_SM_PS_DISABLED, 305124a2042cSRajkumar Manoharan IEEE80211_HE_6GHZ_CAP_SM_PS); 305224a2042cSRajkumar Manoharan break; 305324a2042cSRajkumar Manoharan case IEEE80211_SMPS_STATIC: 305424a2042cSRajkumar Manoharan cap |= u16_encode_bits(WLAN_HT_CAP_SM_PS_STATIC, 305524a2042cSRajkumar Manoharan IEEE80211_HE_6GHZ_CAP_SM_PS); 305624a2042cSRajkumar Manoharan break; 305724a2042cSRajkumar Manoharan case IEEE80211_SMPS_DYNAMIC: 305824a2042cSRajkumar Manoharan cap |= u16_encode_bits(WLAN_HT_CAP_SM_PS_DYNAMIC, 305924a2042cSRajkumar Manoharan IEEE80211_HE_6GHZ_CAP_SM_PS); 306024a2042cSRajkumar Manoharan break; 306124a2042cSRajkumar Manoharan } 306224a2042cSRajkumar Manoharan 306324a2042cSRajkumar Manoharan pos = skb_put(skb, 2 + 1 + sizeof(cap)); 30642ad2274cSIlan Peer ieee80211_write_he_6ghz_cap(pos, cpu_to_le16(cap), 30652ad2274cSIlan Peer pos + 2 + 1 + sizeof(cap)); 306624a2042cSRajkumar Manoharan } 306724a2042cSRajkumar Manoharan 3068074d46d1SJohannes Berg u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap, 30694bf88530SJohannes Berg const struct cfg80211_chan_def *chandef, 307057f255f5SArik Nemtsov u16 prot_mode, bool rifs_mode) 307142e7aa77SAlexander Simon { 3072074d46d1SJohannes Berg struct ieee80211_ht_operation *ht_oper; 307342e7aa77SAlexander Simon /* Build HT Information */ 3074074d46d1SJohannes Berg *pos++ = WLAN_EID_HT_OPERATION; 3075074d46d1SJohannes Berg *pos++ = sizeof(struct ieee80211_ht_operation); 3076074d46d1SJohannes Berg ht_oper = (struct ieee80211_ht_operation *)pos; 30774bf88530SJohannes Berg ht_oper->primary_chan = ieee80211_frequency_to_channel( 30784bf88530SJohannes Berg chandef->chan->center_freq); 30794bf88530SJohannes Berg switch (chandef->width) { 30804bf88530SJohannes Berg case NL80211_CHAN_WIDTH_160: 30814bf88530SJohannes Berg case NL80211_CHAN_WIDTH_80P80: 30824bf88530SJohannes Berg case NL80211_CHAN_WIDTH_80: 30834bf88530SJohannes Berg case NL80211_CHAN_WIDTH_40: 30844bf88530SJohannes Berg if (chandef->center_freq1 > chandef->chan->center_freq) 30854bf88530SJohannes Berg ht_oper->ht_param = IEEE80211_HT_PARAM_CHA_SEC_ABOVE; 30864bf88530SJohannes Berg else 3087074d46d1SJohannes Berg ht_oper->ht_param = IEEE80211_HT_PARAM_CHA_SEC_BELOW; 308842e7aa77SAlexander Simon break; 30895dca295dSIlan Peer case NL80211_CHAN_WIDTH_320: 30905dca295dSIlan Peer /* HT information element should not be included on 6GHz */ 30915dca295dSIlan Peer WARN_ON(1); 30925dca295dSIlan Peer return pos; 309342e7aa77SAlexander Simon default: 3094074d46d1SJohannes Berg ht_oper->ht_param = IEEE80211_HT_PARAM_CHA_SEC_NONE; 309542e7aa77SAlexander Simon break; 309642e7aa77SAlexander Simon } 3097aee286c2SThomas Pedersen if (ht_cap->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40 && 30984bf88530SJohannes Berg chandef->width != NL80211_CHAN_WIDTH_20_NOHT && 30994bf88530SJohannes Berg chandef->width != NL80211_CHAN_WIDTH_20) 3100074d46d1SJohannes Berg ht_oper->ht_param |= IEEE80211_HT_PARAM_CHAN_WIDTH_ANY; 3101ff3cc5f4SSimon Wunderlich 310257f255f5SArik Nemtsov if (rifs_mode) 310357f255f5SArik Nemtsov ht_oper->ht_param |= IEEE80211_HT_PARAM_RIFS_MODE; 310457f255f5SArik Nemtsov 3105431e3154SAshok Nagarajan ht_oper->operation_mode = cpu_to_le16(prot_mode); 3106074d46d1SJohannes Berg ht_oper->stbc_param = 0x0000; 310742e7aa77SAlexander Simon 310842e7aa77SAlexander Simon /* It seems that Basic MCS set and Supported MCS set 310942e7aa77SAlexander Simon are identical for the first 10 bytes */ 3110074d46d1SJohannes Berg memset(&ht_oper->basic_set, 0, 16); 3111074d46d1SJohannes Berg memcpy(&ht_oper->basic_set, &ht_cap->mcs, 10); 311242e7aa77SAlexander Simon 3113074d46d1SJohannes Berg return pos + sizeof(struct ieee80211_ht_operation); 311442e7aa77SAlexander Simon } 311542e7aa77SAlexander Simon 311675d627d5SSimon Wunderlich void ieee80211_ie_build_wide_bw_cs(u8 *pos, 311775d627d5SSimon Wunderlich const struct cfg80211_chan_def *chandef) 311875d627d5SSimon Wunderlich { 311975d627d5SSimon Wunderlich *pos++ = WLAN_EID_WIDE_BW_CHANNEL_SWITCH; /* EID */ 312075d627d5SSimon Wunderlich *pos++ = 3; /* IE length */ 312175d627d5SSimon Wunderlich /* New channel width */ 312275d627d5SSimon Wunderlich switch (chandef->width) { 312375d627d5SSimon Wunderlich case NL80211_CHAN_WIDTH_80: 312475d627d5SSimon Wunderlich *pos++ = IEEE80211_VHT_CHANWIDTH_80MHZ; 312575d627d5SSimon Wunderlich break; 312675d627d5SSimon Wunderlich case NL80211_CHAN_WIDTH_160: 312775d627d5SSimon Wunderlich *pos++ = IEEE80211_VHT_CHANWIDTH_160MHZ; 312875d627d5SSimon Wunderlich break; 312975d627d5SSimon Wunderlich case NL80211_CHAN_WIDTH_80P80: 313075d627d5SSimon Wunderlich *pos++ = IEEE80211_VHT_CHANWIDTH_80P80MHZ; 313175d627d5SSimon Wunderlich break; 31325dca295dSIlan Peer case NL80211_CHAN_WIDTH_320: 31335dca295dSIlan Peer /* The behavior is not defined for 320 MHz channels */ 31345dca295dSIlan Peer WARN_ON(1); 31355dca295dSIlan Peer fallthrough; 313675d627d5SSimon Wunderlich default: 313775d627d5SSimon Wunderlich *pos++ = IEEE80211_VHT_CHANWIDTH_USE_HT; 313875d627d5SSimon Wunderlich } 313975d627d5SSimon Wunderlich 314075d627d5SSimon Wunderlich /* new center frequency segment 0 */ 314175d627d5SSimon Wunderlich *pos++ = ieee80211_frequency_to_channel(chandef->center_freq1); 314275d627d5SSimon Wunderlich /* new center frequency segment 1 */ 314375d627d5SSimon Wunderlich if (chandef->center_freq2) 314475d627d5SSimon Wunderlich *pos++ = ieee80211_frequency_to_channel(chandef->center_freq2); 314575d627d5SSimon Wunderlich else 314675d627d5SSimon Wunderlich *pos++ = 0; 314775d627d5SSimon Wunderlich } 314875d627d5SSimon Wunderlich 3149fb28ec0cSArik Nemtsov u8 *ieee80211_ie_build_vht_oper(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap, 3150fb28ec0cSArik Nemtsov const struct cfg80211_chan_def *chandef) 3151fb28ec0cSArik Nemtsov { 3152fb28ec0cSArik Nemtsov struct ieee80211_vht_operation *vht_oper; 3153fb28ec0cSArik Nemtsov 3154fb28ec0cSArik Nemtsov *pos++ = WLAN_EID_VHT_OPERATION; 3155fb28ec0cSArik Nemtsov *pos++ = sizeof(struct ieee80211_vht_operation); 3156fb28ec0cSArik Nemtsov vht_oper = (struct ieee80211_vht_operation *)pos; 31572fb51c35SJohannes Berg vht_oper->center_freq_seg0_idx = ieee80211_frequency_to_channel( 3158fb28ec0cSArik Nemtsov chandef->center_freq1); 3159fb28ec0cSArik Nemtsov if (chandef->center_freq2) 31602fb51c35SJohannes Berg vht_oper->center_freq_seg1_idx = 3161fb28ec0cSArik Nemtsov ieee80211_frequency_to_channel(chandef->center_freq2); 3162f020ae40SChun-Yeow Yeoh else 31632fb51c35SJohannes Berg vht_oper->center_freq_seg1_idx = 0x00; 3164fb28ec0cSArik Nemtsov 3165fb28ec0cSArik Nemtsov switch (chandef->width) { 3166fb28ec0cSArik Nemtsov case NL80211_CHAN_WIDTH_160: 316723665aafSJouni Malinen /* 316823665aafSJouni Malinen * Convert 160 MHz channel width to new style as interop 316923665aafSJouni Malinen * workaround. 317023665aafSJouni Malinen */ 317123665aafSJouni Malinen vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_80MHZ; 31722fb51c35SJohannes Berg vht_oper->center_freq_seg1_idx = vht_oper->center_freq_seg0_idx; 317323665aafSJouni Malinen if (chandef->chan->center_freq < chandef->center_freq1) 31742fb51c35SJohannes Berg vht_oper->center_freq_seg0_idx -= 8; 317523665aafSJouni Malinen else 31762fb51c35SJohannes Berg vht_oper->center_freq_seg0_idx += 8; 3177fb28ec0cSArik Nemtsov break; 3178fb28ec0cSArik Nemtsov case NL80211_CHAN_WIDTH_80P80: 317923665aafSJouni Malinen /* 318023665aafSJouni Malinen * Convert 80+80 MHz channel width to new style as interop 318123665aafSJouni Malinen * workaround. 318223665aafSJouni Malinen */ 318323665aafSJouni Malinen vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_80MHZ; 3184fb28ec0cSArik Nemtsov break; 3185fb28ec0cSArik Nemtsov case NL80211_CHAN_WIDTH_80: 3186fb28ec0cSArik Nemtsov vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_80MHZ; 3187fb28ec0cSArik Nemtsov break; 31885dca295dSIlan Peer case NL80211_CHAN_WIDTH_320: 31895dca295dSIlan Peer /* VHT information element should not be included on 6GHz */ 31905dca295dSIlan Peer WARN_ON(1); 31915dca295dSIlan Peer return pos; 3192fb28ec0cSArik Nemtsov default: 3193fb28ec0cSArik Nemtsov vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_USE_HT; 3194fb28ec0cSArik Nemtsov break; 3195fb28ec0cSArik Nemtsov } 3196fb28ec0cSArik Nemtsov 3197fb28ec0cSArik Nemtsov /* don't require special VHT peer rates */ 3198fb28ec0cSArik Nemtsov vht_oper->basic_mcs_set = cpu_to_le16(0xffff); 3199fb28ec0cSArik Nemtsov 3200fb28ec0cSArik Nemtsov return pos + sizeof(struct ieee80211_vht_operation); 3201fb28ec0cSArik Nemtsov } 3202fb28ec0cSArik Nemtsov 3203d1b7524bSRajkumar Manoharan u8 *ieee80211_ie_build_he_oper(u8 *pos, struct cfg80211_chan_def *chandef) 320460ad72daSSven Eckelmann { 320560ad72daSSven Eckelmann struct ieee80211_he_operation *he_oper; 3206d1b7524bSRajkumar Manoharan struct ieee80211_he_6ghz_oper *he_6ghz_op; 320760ad72daSSven Eckelmann u32 he_oper_params; 3208d1b7524bSRajkumar Manoharan u8 ie_len = 1 + sizeof(struct ieee80211_he_operation); 3209d1b7524bSRajkumar Manoharan 3210d1b7524bSRajkumar Manoharan if (chandef->chan->band == NL80211_BAND_6GHZ) 3211d1b7524bSRajkumar Manoharan ie_len += sizeof(struct ieee80211_he_6ghz_oper); 321260ad72daSSven Eckelmann 321360ad72daSSven Eckelmann *pos++ = WLAN_EID_EXTENSION; 3214d1b7524bSRajkumar Manoharan *pos++ = ie_len; 321560ad72daSSven Eckelmann *pos++ = WLAN_EID_EXT_HE_OPERATION; 321660ad72daSSven Eckelmann 321760ad72daSSven Eckelmann he_oper_params = 0; 321860ad72daSSven Eckelmann he_oper_params |= u32_encode_bits(1023, /* disabled */ 321960ad72daSSven Eckelmann IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK); 322060ad72daSSven Eckelmann he_oper_params |= u32_encode_bits(1, 322160ad72daSSven Eckelmann IEEE80211_HE_OPERATION_ER_SU_DISABLE); 322260ad72daSSven Eckelmann he_oper_params |= u32_encode_bits(1, 322360ad72daSSven Eckelmann IEEE80211_HE_OPERATION_BSS_COLOR_DISABLED); 3224d1b7524bSRajkumar Manoharan if (chandef->chan->band == NL80211_BAND_6GHZ) 3225d1b7524bSRajkumar Manoharan he_oper_params |= u32_encode_bits(1, 3226d1b7524bSRajkumar Manoharan IEEE80211_HE_OPERATION_6GHZ_OP_INFO); 322760ad72daSSven Eckelmann 322860ad72daSSven Eckelmann he_oper = (struct ieee80211_he_operation *)pos; 322960ad72daSSven Eckelmann he_oper->he_oper_params = cpu_to_le32(he_oper_params); 323060ad72daSSven Eckelmann 323160ad72daSSven Eckelmann /* don't require special HE peer rates */ 323260ad72daSSven Eckelmann he_oper->he_mcs_nss_set = cpu_to_le16(0xffff); 3233d1b7524bSRajkumar Manoharan pos += sizeof(struct ieee80211_he_operation); 323460ad72daSSven Eckelmann 3235d1b7524bSRajkumar Manoharan if (chandef->chan->band != NL80211_BAND_6GHZ) 3236d1b7524bSRajkumar Manoharan goto out; 323760ad72daSSven Eckelmann 3238d1b7524bSRajkumar Manoharan /* TODO add VHT operational */ 3239d1b7524bSRajkumar Manoharan he_6ghz_op = (struct ieee80211_he_6ghz_oper *)pos; 3240d1b7524bSRajkumar Manoharan he_6ghz_op->minrate = 6; /* 6 Mbps */ 3241d1b7524bSRajkumar Manoharan he_6ghz_op->primary = 3242d1b7524bSRajkumar Manoharan ieee80211_frequency_to_channel(chandef->chan->center_freq); 3243d1b7524bSRajkumar Manoharan he_6ghz_op->ccfs0 = 3244d1b7524bSRajkumar Manoharan ieee80211_frequency_to_channel(chandef->center_freq1); 3245d1b7524bSRajkumar Manoharan if (chandef->center_freq2) 3246d1b7524bSRajkumar Manoharan he_6ghz_op->ccfs1 = 3247d1b7524bSRajkumar Manoharan ieee80211_frequency_to_channel(chandef->center_freq2); 3248d1b7524bSRajkumar Manoharan else 3249d1b7524bSRajkumar Manoharan he_6ghz_op->ccfs1 = 0; 3250d1b7524bSRajkumar Manoharan 3251d1b7524bSRajkumar Manoharan switch (chandef->width) { 32525dca295dSIlan Peer case NL80211_CHAN_WIDTH_320: 32535dca295dSIlan Peer /* 32545dca295dSIlan Peer * TODO: mesh operation is not defined over 6GHz 320 MHz 32555dca295dSIlan Peer * channels. 32565dca295dSIlan Peer */ 32575dca295dSIlan Peer WARN_ON(1); 32585dca295dSIlan Peer break; 3259d1b7524bSRajkumar Manoharan case NL80211_CHAN_WIDTH_160: 3260d1b7524bSRajkumar Manoharan /* Convert 160 MHz channel width to new style as interop 3261d1b7524bSRajkumar Manoharan * workaround. 3262d1b7524bSRajkumar Manoharan */ 3263d1b7524bSRajkumar Manoharan he_6ghz_op->control = 3264d1b7524bSRajkumar Manoharan IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_160MHZ; 3265d1b7524bSRajkumar Manoharan he_6ghz_op->ccfs1 = he_6ghz_op->ccfs0; 3266d1b7524bSRajkumar Manoharan if (chandef->chan->center_freq < chandef->center_freq1) 3267d1b7524bSRajkumar Manoharan he_6ghz_op->ccfs0 -= 8; 3268d1b7524bSRajkumar Manoharan else 3269d1b7524bSRajkumar Manoharan he_6ghz_op->ccfs0 += 8; 3270d1b7524bSRajkumar Manoharan fallthrough; 3271d1b7524bSRajkumar Manoharan case NL80211_CHAN_WIDTH_80P80: 3272d1b7524bSRajkumar Manoharan he_6ghz_op->control = 3273d1b7524bSRajkumar Manoharan IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_160MHZ; 3274d1b7524bSRajkumar Manoharan break; 3275d1b7524bSRajkumar Manoharan case NL80211_CHAN_WIDTH_80: 3276d1b7524bSRajkumar Manoharan he_6ghz_op->control = 3277d1b7524bSRajkumar Manoharan IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_80MHZ; 3278d1b7524bSRajkumar Manoharan break; 3279d1b7524bSRajkumar Manoharan case NL80211_CHAN_WIDTH_40: 3280d1b7524bSRajkumar Manoharan he_6ghz_op->control = 3281d1b7524bSRajkumar Manoharan IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_40MHZ; 3282d1b7524bSRajkumar Manoharan break; 3283d1b7524bSRajkumar Manoharan default: 3284d1b7524bSRajkumar Manoharan he_6ghz_op->control = 3285d1b7524bSRajkumar Manoharan IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_20MHZ; 3286d1b7524bSRajkumar Manoharan break; 3287d1b7524bSRajkumar Manoharan } 3288d1b7524bSRajkumar Manoharan 3289d1b7524bSRajkumar Manoharan pos += sizeof(struct ieee80211_he_6ghz_oper); 3290d1b7524bSRajkumar Manoharan 3291d1b7524bSRajkumar Manoharan out: 3292d1b7524bSRajkumar Manoharan return pos; 329360ad72daSSven Eckelmann } 329460ad72daSSven Eckelmann 32958ac3c704SJohannes Berg bool ieee80211_chandef_ht_oper(const struct ieee80211_ht_operation *ht_oper, 32964bf88530SJohannes Berg struct cfg80211_chan_def *chandef) 329742e7aa77SAlexander Simon { 329842e7aa77SAlexander Simon enum nl80211_channel_type channel_type; 329942e7aa77SAlexander Simon 33008ac3c704SJohannes Berg if (!ht_oper) 33018ac3c704SJohannes Berg return false; 330242e7aa77SAlexander Simon 3303074d46d1SJohannes Berg switch (ht_oper->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET) { 330442e7aa77SAlexander Simon case IEEE80211_HT_PARAM_CHA_SEC_NONE: 330542e7aa77SAlexander Simon channel_type = NL80211_CHAN_HT20; 330642e7aa77SAlexander Simon break; 330742e7aa77SAlexander Simon case IEEE80211_HT_PARAM_CHA_SEC_ABOVE: 330842e7aa77SAlexander Simon channel_type = NL80211_CHAN_HT40PLUS; 330942e7aa77SAlexander Simon break; 331042e7aa77SAlexander Simon case IEEE80211_HT_PARAM_CHA_SEC_BELOW: 331142e7aa77SAlexander Simon channel_type = NL80211_CHAN_HT40MINUS; 331242e7aa77SAlexander Simon break; 331342e7aa77SAlexander Simon default: 33148ac3c704SJohannes Berg return false; 331542e7aa77SAlexander Simon } 331642e7aa77SAlexander Simon 33178ac3c704SJohannes Berg cfg80211_chandef_create(chandef, chandef->chan, channel_type); 33188ac3c704SJohannes Berg return true; 331942e7aa77SAlexander Simon } 332042e7aa77SAlexander Simon 33212a333a0dSJohannes Berg bool ieee80211_chandef_vht_oper(struct ieee80211_hw *hw, u32 vht_cap_info, 33227eb26df2SJohannes Berg const struct ieee80211_vht_operation *oper, 33237eb26df2SJohannes Berg const struct ieee80211_ht_operation *htop, 3324abcff6efSJanusz.Dziedzic@tieto.com struct cfg80211_chan_def *chandef) 3325abcff6efSJanusz.Dziedzic@tieto.com { 33268ac3c704SJohannes Berg struct cfg80211_chan_def new = *chandef; 33277eb26df2SJohannes Berg int cf0, cf1; 33287eb26df2SJohannes Berg int ccfs0, ccfs1, ccfs2; 33297eb26df2SJohannes Berg int ccf0, ccf1; 333033181ea7SShay Bar u32 vht_cap; 333133181ea7SShay Bar bool support_80_80 = false; 333233181ea7SShay Bar bool support_160 = false; 33332a333a0dSJohannes Berg u8 ext_nss_bw_supp = u32_get_bits(vht_cap_info, 33342a333a0dSJohannes Berg IEEE80211_VHT_CAP_EXT_NSS_BW_MASK); 33352a333a0dSJohannes Berg u8 supp_chwidth = u32_get_bits(vht_cap_info, 33362a333a0dSJohannes Berg IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK); 3337abcff6efSJanusz.Dziedzic@tieto.com 33387eb26df2SJohannes Berg if (!oper || !htop) 33398ac3c704SJohannes Berg return false; 33408ac3c704SJohannes Berg 334133181ea7SShay Bar vht_cap = hw->wiphy->bands[chandef->chan->band]->vht_cap.cap; 334233181ea7SShay Bar support_160 = (vht_cap & (IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK | 334333181ea7SShay Bar IEEE80211_VHT_CAP_EXT_NSS_BW_MASK)); 334433181ea7SShay Bar support_80_80 = ((vht_cap & 334533181ea7SShay Bar IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ) || 334633181ea7SShay Bar (vht_cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ && 334733181ea7SShay Bar vht_cap & IEEE80211_VHT_CAP_EXT_NSS_BW_MASK) || 334833181ea7SShay Bar ((vht_cap & IEEE80211_VHT_CAP_EXT_NSS_BW_MASK) >> 334933181ea7SShay Bar IEEE80211_VHT_CAP_EXT_NSS_BW_SHIFT > 1)); 33507eb26df2SJohannes Berg ccfs0 = oper->center_freq_seg0_idx; 33517eb26df2SJohannes Berg ccfs1 = oper->center_freq_seg1_idx; 33527eb26df2SJohannes Berg ccfs2 = (le16_to_cpu(htop->operation_mode) & 33537eb26df2SJohannes Berg IEEE80211_HT_OP_MODE_CCFS2_MASK) 33547eb26df2SJohannes Berg >> IEEE80211_HT_OP_MODE_CCFS2_SHIFT; 33557eb26df2SJohannes Berg 33567eb26df2SJohannes Berg ccf0 = ccfs0; 33572a333a0dSJohannes Berg 33582a333a0dSJohannes Berg /* if not supported, parse as though we didn't understand it */ 33592a333a0dSJohannes Berg if (!ieee80211_hw_check(hw, SUPPORTS_VHT_EXT_NSS_BW)) 33602a333a0dSJohannes Berg ext_nss_bw_supp = 0; 33612a333a0dSJohannes Berg 33622a333a0dSJohannes Berg /* 33632a333a0dSJohannes Berg * Cf. IEEE 802.11 Table 9-250 33642a333a0dSJohannes Berg * 33652a333a0dSJohannes Berg * We really just consider that because it's inefficient to connect 33662a333a0dSJohannes Berg * at a higher bandwidth than we'll actually be able to use. 33672a333a0dSJohannes Berg */ 33682a333a0dSJohannes Berg switch ((supp_chwidth << 4) | ext_nss_bw_supp) { 33692a333a0dSJohannes Berg default: 33702a333a0dSJohannes Berg case 0x00: 33712a333a0dSJohannes Berg ccf1 = 0; 33722a333a0dSJohannes Berg support_160 = false; 33732a333a0dSJohannes Berg support_80_80 = false; 33742a333a0dSJohannes Berg break; 33752a333a0dSJohannes Berg case 0x01: 33762a333a0dSJohannes Berg support_80_80 = false; 3377fc0561dcSGustavo A. R. Silva fallthrough; 33782a333a0dSJohannes Berg case 0x02: 33792a333a0dSJohannes Berg case 0x03: 33807eb26df2SJohannes Berg ccf1 = ccfs2; 33812a333a0dSJohannes Berg break; 33822a333a0dSJohannes Berg case 0x10: 33832a333a0dSJohannes Berg ccf1 = ccfs1; 33842a333a0dSJohannes Berg break; 33852a333a0dSJohannes Berg case 0x11: 33862a333a0dSJohannes Berg case 0x12: 33872a333a0dSJohannes Berg if (!ccfs1) 33882a333a0dSJohannes Berg ccf1 = ccfs2; 33892a333a0dSJohannes Berg else 33902a333a0dSJohannes Berg ccf1 = ccfs1; 33912a333a0dSJohannes Berg break; 33922a333a0dSJohannes Berg case 0x13: 33932a333a0dSJohannes Berg case 0x20: 33942a333a0dSJohannes Berg case 0x23: 33952a333a0dSJohannes Berg ccf1 = ccfs1; 33962a333a0dSJohannes Berg break; 33972a333a0dSJohannes Berg } 33987eb26df2SJohannes Berg 33997eb26df2SJohannes Berg cf0 = ieee80211_channel_to_frequency(ccf0, chandef->chan->band); 34007eb26df2SJohannes Berg cf1 = ieee80211_channel_to_frequency(ccf1, chandef->chan->band); 3401abcff6efSJanusz.Dziedzic@tieto.com 3402abcff6efSJanusz.Dziedzic@tieto.com switch (oper->chan_width) { 3403abcff6efSJanusz.Dziedzic@tieto.com case IEEE80211_VHT_CHANWIDTH_USE_HT: 34047eb26df2SJohannes Berg /* just use HT information directly */ 3405abcff6efSJanusz.Dziedzic@tieto.com break; 3406abcff6efSJanusz.Dziedzic@tieto.com case IEEE80211_VHT_CHANWIDTH_80MHZ: 34078ac3c704SJohannes Berg new.width = NL80211_CHAN_WIDTH_80; 34087eb26df2SJohannes Berg new.center_freq1 = cf0; 340923665aafSJouni Malinen /* If needed, adjust based on the newer interop workaround. */ 34107eb26df2SJohannes Berg if (ccf1) { 341123665aafSJouni Malinen unsigned int diff; 341223665aafSJouni Malinen 34137eb26df2SJohannes Berg diff = abs(ccf1 - ccf0); 341433181ea7SShay Bar if ((diff == 8) && support_160) { 341523665aafSJouni Malinen new.width = NL80211_CHAN_WIDTH_160; 34167eb26df2SJohannes Berg new.center_freq1 = cf1; 341733181ea7SShay Bar } else if ((diff > 8) && support_80_80) { 341823665aafSJouni Malinen new.width = NL80211_CHAN_WIDTH_80P80; 34197eb26df2SJohannes Berg new.center_freq2 = cf1; 342023665aafSJouni Malinen } 342123665aafSJouni Malinen } 3422abcff6efSJanusz.Dziedzic@tieto.com break; 3423abcff6efSJanusz.Dziedzic@tieto.com case IEEE80211_VHT_CHANWIDTH_160MHZ: 34247eb26df2SJohannes Berg /* deprecated encoding */ 34258ac3c704SJohannes Berg new.width = NL80211_CHAN_WIDTH_160; 34267eb26df2SJohannes Berg new.center_freq1 = cf0; 3427abcff6efSJanusz.Dziedzic@tieto.com break; 3428abcff6efSJanusz.Dziedzic@tieto.com case IEEE80211_VHT_CHANWIDTH_80P80MHZ: 34297eb26df2SJohannes Berg /* deprecated encoding */ 34308ac3c704SJohannes Berg new.width = NL80211_CHAN_WIDTH_80P80; 34317eb26df2SJohannes Berg new.center_freq1 = cf0; 34327eb26df2SJohannes Berg new.center_freq2 = cf1; 3433abcff6efSJanusz.Dziedzic@tieto.com break; 3434abcff6efSJanusz.Dziedzic@tieto.com default: 34358ac3c704SJohannes Berg return false; 3436abcff6efSJanusz.Dziedzic@tieto.com } 3437abcff6efSJanusz.Dziedzic@tieto.com 34388ac3c704SJohannes Berg if (!cfg80211_chandef_valid(&new)) 34398ac3c704SJohannes Berg return false; 34408ac3c704SJohannes Berg 34418ac3c704SJohannes Berg *chandef = new; 34428ac3c704SJohannes Berg return true; 3443abcff6efSJanusz.Dziedzic@tieto.com } 3444abcff6efSJanusz.Dziedzic@tieto.com 344557fa5e85SJohannes Berg bool ieee80211_chandef_he_6ghz_oper(struct ieee80211_sub_if_data *sdata, 344657fa5e85SJohannes Berg const struct ieee80211_he_operation *he_oper, 34475dca295dSIlan Peer const struct ieee80211_eht_operation *eht_oper, 344857fa5e85SJohannes Berg struct cfg80211_chan_def *chandef) 344957fa5e85SJohannes Berg { 345057fa5e85SJohannes Berg struct ieee80211_local *local = sdata->local; 345157fa5e85SJohannes Berg struct ieee80211_supported_band *sband; 345257fa5e85SJohannes Berg enum nl80211_iftype iftype = ieee80211_vif_type_p2p(&sdata->vif); 345357fa5e85SJohannes Berg const struct ieee80211_sta_he_cap *he_cap; 34545dca295dSIlan Peer const struct ieee80211_sta_eht_cap *eht_cap; 345557fa5e85SJohannes Berg struct cfg80211_chan_def he_chandef = *chandef; 345657fa5e85SJohannes Berg const struct ieee80211_he_6ghz_oper *he_6ghz_oper; 3457cb751b7aSWen Gong struct ieee80211_bss_conf *bss_conf = &sdata->vif.bss_conf; 34585dca295dSIlan Peer bool support_80_80, support_160, support_320; 34595dca295dSIlan Peer u8 he_phy_cap, eht_phy_cap; 346057fa5e85SJohannes Berg u32 freq; 346157fa5e85SJohannes Berg 346257fa5e85SJohannes Berg if (chandef->chan->band != NL80211_BAND_6GHZ) 346357fa5e85SJohannes Berg return true; 346457fa5e85SJohannes Berg 346557fa5e85SJohannes Berg sband = local->hw.wiphy->bands[NL80211_BAND_6GHZ]; 346657fa5e85SJohannes Berg 346757fa5e85SJohannes Berg he_cap = ieee80211_get_he_iftype_cap(sband, iftype); 346857fa5e85SJohannes Berg if (!he_cap) { 346957fa5e85SJohannes Berg sdata_info(sdata, "Missing iftype sband data/HE cap"); 347057fa5e85SJohannes Berg return false; 347157fa5e85SJohannes Berg } 347257fa5e85SJohannes Berg 347357fa5e85SJohannes Berg he_phy_cap = he_cap->he_cap_elem.phy_cap_info[0]; 347457fa5e85SJohannes Berg support_160 = 347557fa5e85SJohannes Berg he_phy_cap & 347657fa5e85SJohannes Berg IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G; 347757fa5e85SJohannes Berg support_80_80 = 347857fa5e85SJohannes Berg he_phy_cap & 347957fa5e85SJohannes Berg IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G; 348057fa5e85SJohannes Berg 348157fa5e85SJohannes Berg if (!he_oper) { 348257fa5e85SJohannes Berg sdata_info(sdata, 348357fa5e85SJohannes Berg "HE is not advertised on (on %d MHz), expect issues\n", 348457fa5e85SJohannes Berg chandef->chan->center_freq); 348557fa5e85SJohannes Berg return false; 348657fa5e85SJohannes Berg } 348757fa5e85SJohannes Berg 34885dca295dSIlan Peer eht_cap = ieee80211_get_eht_iftype_cap(sband, iftype); 34895dca295dSIlan Peer if (!eht_cap) { 34905dca295dSIlan Peer sdata_info(sdata, "Missing iftype sband data/EHT cap"); 34915dca295dSIlan Peer eht_oper = NULL; 34925dca295dSIlan Peer } 34935dca295dSIlan Peer 349457fa5e85SJohannes Berg he_6ghz_oper = ieee80211_he_6ghz_oper(he_oper); 349557fa5e85SJohannes Berg 349657fa5e85SJohannes Berg if (!he_6ghz_oper) { 349757fa5e85SJohannes Berg sdata_info(sdata, 349857fa5e85SJohannes Berg "HE 6GHz operation missing (on %d MHz), expect issues\n", 349957fa5e85SJohannes Berg chandef->chan->center_freq); 350057fa5e85SJohannes Berg return false; 350157fa5e85SJohannes Berg } 350257fa5e85SJohannes Berg 35035dca295dSIlan Peer /* 35045dca295dSIlan Peer * The EHT operation IE does not contain the primary channel so the 35055dca295dSIlan Peer * primary channel frequency should be taken from the 6 GHz operation 35065dca295dSIlan Peer * information. 35075dca295dSIlan Peer */ 350857fa5e85SJohannes Berg freq = ieee80211_channel_to_frequency(he_6ghz_oper->primary, 350957fa5e85SJohannes Berg NL80211_BAND_6GHZ); 351057fa5e85SJohannes Berg he_chandef.chan = ieee80211_get_channel(sdata->local->hw.wiphy, freq); 351157fa5e85SJohannes Berg 351257fa5e85SJohannes Berg switch (u8_get_bits(he_6ghz_oper->control, 3513cb751b7aSWen Gong IEEE80211_HE_6GHZ_OPER_CTRL_REG_INFO)) { 3514cb751b7aSWen Gong case IEEE80211_6GHZ_CTRL_REG_LPI_AP: 3515cb751b7aSWen Gong bss_conf->power_type = IEEE80211_REG_LPI_AP; 3516cb751b7aSWen Gong break; 3517cb751b7aSWen Gong case IEEE80211_6GHZ_CTRL_REG_SP_AP: 3518cb751b7aSWen Gong bss_conf->power_type = IEEE80211_REG_SP_AP; 3519cb751b7aSWen Gong break; 3520cb751b7aSWen Gong default: 3521cb751b7aSWen Gong bss_conf->power_type = IEEE80211_REG_UNSET_AP; 3522cb751b7aSWen Gong break; 3523cb751b7aSWen Gong } 3524cb751b7aSWen Gong 35255dca295dSIlan Peer if (!eht_oper) { 3526cb751b7aSWen Gong switch (u8_get_bits(he_6ghz_oper->control, 352757fa5e85SJohannes Berg IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH)) { 352857fa5e85SJohannes Berg case IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_20MHZ: 352957fa5e85SJohannes Berg he_chandef.width = NL80211_CHAN_WIDTH_20; 353057fa5e85SJohannes Berg break; 353157fa5e85SJohannes Berg case IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_40MHZ: 353257fa5e85SJohannes Berg he_chandef.width = NL80211_CHAN_WIDTH_40; 353357fa5e85SJohannes Berg break; 353457fa5e85SJohannes Berg case IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_80MHZ: 353557fa5e85SJohannes Berg he_chandef.width = NL80211_CHAN_WIDTH_80; 353657fa5e85SJohannes Berg break; 353757fa5e85SJohannes Berg case IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_160MHZ: 353857fa5e85SJohannes Berg he_chandef.width = NL80211_CHAN_WIDTH_80; 353957fa5e85SJohannes Berg if (!he_6ghz_oper->ccfs1) 354057fa5e85SJohannes Berg break; 354157fa5e85SJohannes Berg if (abs(he_6ghz_oper->ccfs1 - he_6ghz_oper->ccfs0) == 8) { 354257fa5e85SJohannes Berg if (support_160) 354357fa5e85SJohannes Berg he_chandef.width = NL80211_CHAN_WIDTH_160; 354457fa5e85SJohannes Berg } else { 354557fa5e85SJohannes Berg if (support_80_80) 354657fa5e85SJohannes Berg he_chandef.width = NL80211_CHAN_WIDTH_80P80; 354757fa5e85SJohannes Berg } 354857fa5e85SJohannes Berg break; 354957fa5e85SJohannes Berg } 355057fa5e85SJohannes Berg 355157fa5e85SJohannes Berg if (he_chandef.width == NL80211_CHAN_WIDTH_160) { 355257fa5e85SJohannes Berg he_chandef.center_freq1 = 355357fa5e85SJohannes Berg ieee80211_channel_to_frequency(he_6ghz_oper->ccfs1, 355457fa5e85SJohannes Berg NL80211_BAND_6GHZ); 355557fa5e85SJohannes Berg } else { 355657fa5e85SJohannes Berg he_chandef.center_freq1 = 355757fa5e85SJohannes Berg ieee80211_channel_to_frequency(he_6ghz_oper->ccfs0, 355857fa5e85SJohannes Berg NL80211_BAND_6GHZ); 355975bcbd69SJohn Crispin if (support_80_80 || support_160) 356057fa5e85SJohannes Berg he_chandef.center_freq2 = 356157fa5e85SJohannes Berg ieee80211_channel_to_frequency(he_6ghz_oper->ccfs1, 356257fa5e85SJohannes Berg NL80211_BAND_6GHZ); 356357fa5e85SJohannes Berg } 35645dca295dSIlan Peer } else { 35655dca295dSIlan Peer eht_phy_cap = eht_cap->eht_cap_elem.phy_cap_info[0]; 35665dca295dSIlan Peer support_320 = 35675dca295dSIlan Peer eht_phy_cap & IEEE80211_EHT_PHY_CAP0_320MHZ_IN_6GHZ; 35685dca295dSIlan Peer 35695dca295dSIlan Peer switch (u8_get_bits(eht_oper->chan_width, 35705dca295dSIlan Peer IEEE80211_EHT_OPER_CHAN_WIDTH)) { 35715dca295dSIlan Peer case IEEE80211_EHT_OPER_CHAN_WIDTH_20MHZ: 35725dca295dSIlan Peer he_chandef.width = NL80211_CHAN_WIDTH_20; 35735dca295dSIlan Peer break; 35745dca295dSIlan Peer case IEEE80211_EHT_OPER_CHAN_WIDTH_40MHZ: 35755dca295dSIlan Peer he_chandef.width = NL80211_CHAN_WIDTH_40; 35765dca295dSIlan Peer break; 35775dca295dSIlan Peer case IEEE80211_EHT_OPER_CHAN_WIDTH_80MHZ: 35785dca295dSIlan Peer he_chandef.width = NL80211_CHAN_WIDTH_80; 35795dca295dSIlan Peer break; 35805dca295dSIlan Peer case IEEE80211_EHT_OPER_CHAN_WIDTH_160MHZ: 35815dca295dSIlan Peer if (support_160) 35825dca295dSIlan Peer he_chandef.width = NL80211_CHAN_WIDTH_160; 35835dca295dSIlan Peer else 35845dca295dSIlan Peer he_chandef.width = NL80211_CHAN_WIDTH_80; 35855dca295dSIlan Peer break; 35865dca295dSIlan Peer case IEEE80211_EHT_OPER_CHAN_WIDTH_320MHZ: 35875dca295dSIlan Peer if (support_320) 35885dca295dSIlan Peer he_chandef.width = NL80211_CHAN_WIDTH_320; 35895dca295dSIlan Peer else if (support_160) 35905dca295dSIlan Peer he_chandef.width = NL80211_CHAN_WIDTH_160; 35915dca295dSIlan Peer else 35925dca295dSIlan Peer he_chandef.width = NL80211_CHAN_WIDTH_80; 35935dca295dSIlan Peer break; 35945dca295dSIlan Peer } 35955dca295dSIlan Peer 35965dca295dSIlan Peer he_chandef.center_freq1 = 35975dca295dSIlan Peer ieee80211_channel_to_frequency(eht_oper->ccfs, 35985dca295dSIlan Peer NL80211_BAND_6GHZ); 35995dca295dSIlan Peer } 360057fa5e85SJohannes Berg 360157fa5e85SJohannes Berg if (!cfg80211_chandef_valid(&he_chandef)) { 360257fa5e85SJohannes Berg sdata_info(sdata, 360357fa5e85SJohannes Berg "HE 6GHz operation resulted in invalid chandef: %d MHz/%d/%d MHz/%d MHz\n", 360457fa5e85SJohannes Berg he_chandef.chan ? he_chandef.chan->center_freq : 0, 360557fa5e85SJohannes Berg he_chandef.width, 360657fa5e85SJohannes Berg he_chandef.center_freq1, 360757fa5e85SJohannes Berg he_chandef.center_freq2); 360857fa5e85SJohannes Berg return false; 360957fa5e85SJohannes Berg } 361057fa5e85SJohannes Berg 361157fa5e85SJohannes Berg *chandef = he_chandef; 361257fa5e85SJohannes Berg 36138fca2b87SWen Gong return true; 36141d00ce80SThomas Pedersen } 36151d00ce80SThomas Pedersen 36161d00ce80SThomas Pedersen bool ieee80211_chandef_s1g_oper(const struct ieee80211_s1g_oper_ie *oper, 36171d00ce80SThomas Pedersen struct cfg80211_chan_def *chandef) 36181d00ce80SThomas Pedersen { 36191d00ce80SThomas Pedersen u32 oper_freq; 36201d00ce80SThomas Pedersen 36211d00ce80SThomas Pedersen if (!oper) 36221d00ce80SThomas Pedersen return false; 36231d00ce80SThomas Pedersen 36241d00ce80SThomas Pedersen switch (FIELD_GET(S1G_OPER_CH_WIDTH_OPER, oper->ch_width)) { 36251d00ce80SThomas Pedersen case IEEE80211_S1G_CHANWIDTH_1MHZ: 36261d00ce80SThomas Pedersen chandef->width = NL80211_CHAN_WIDTH_1; 36271d00ce80SThomas Pedersen break; 36281d00ce80SThomas Pedersen case IEEE80211_S1G_CHANWIDTH_2MHZ: 36291d00ce80SThomas Pedersen chandef->width = NL80211_CHAN_WIDTH_2; 36301d00ce80SThomas Pedersen break; 36311d00ce80SThomas Pedersen case IEEE80211_S1G_CHANWIDTH_4MHZ: 36321d00ce80SThomas Pedersen chandef->width = NL80211_CHAN_WIDTH_4; 36331d00ce80SThomas Pedersen break; 36341d00ce80SThomas Pedersen case IEEE80211_S1G_CHANWIDTH_8MHZ: 36351d00ce80SThomas Pedersen chandef->width = NL80211_CHAN_WIDTH_8; 36361d00ce80SThomas Pedersen break; 36371d00ce80SThomas Pedersen case IEEE80211_S1G_CHANWIDTH_16MHZ: 36381d00ce80SThomas Pedersen chandef->width = NL80211_CHAN_WIDTH_16; 36391d00ce80SThomas Pedersen break; 36401d00ce80SThomas Pedersen default: 36411d00ce80SThomas Pedersen return false; 36421d00ce80SThomas Pedersen } 36431d00ce80SThomas Pedersen 36441d00ce80SThomas Pedersen oper_freq = ieee80211_channel_to_freq_khz(oper->oper_ch, 36451d00ce80SThomas Pedersen NL80211_BAND_S1GHZ); 36461d00ce80SThomas Pedersen chandef->center_freq1 = KHZ_TO_MHZ(oper_freq); 36471d00ce80SThomas Pedersen chandef->freq1_offset = oper_freq % 1000; 36481d00ce80SThomas Pedersen 364957fa5e85SJohannes Berg return true; 365057fa5e85SJohannes Berg } 365157fa5e85SJohannes Berg 36522103dec1SSimon Wunderlich int ieee80211_parse_bitrates(struct cfg80211_chan_def *chandef, 36532103dec1SSimon Wunderlich const struct ieee80211_supported_band *sband, 36542103dec1SSimon Wunderlich const u8 *srates, int srates_len, u32 *rates) 36552103dec1SSimon Wunderlich { 36562103dec1SSimon Wunderlich u32 rate_flags = ieee80211_chandef_rate_flags(chandef); 36572103dec1SSimon Wunderlich int shift = ieee80211_chandef_get_shift(chandef); 36582103dec1SSimon Wunderlich struct ieee80211_rate *br; 36592103dec1SSimon Wunderlich int brate, rate, i, j, count = 0; 36602103dec1SSimon Wunderlich 36612103dec1SSimon Wunderlich *rates = 0; 36622103dec1SSimon Wunderlich 36632103dec1SSimon Wunderlich for (i = 0; i < srates_len; i++) { 36642103dec1SSimon Wunderlich rate = srates[i] & 0x7f; 36652103dec1SSimon Wunderlich 36662103dec1SSimon Wunderlich for (j = 0; j < sband->n_bitrates; j++) { 36672103dec1SSimon Wunderlich br = &sband->bitrates[j]; 36682103dec1SSimon Wunderlich if ((rate_flags & br->flags) != rate_flags) 36692103dec1SSimon Wunderlich continue; 36702103dec1SSimon Wunderlich 36712103dec1SSimon Wunderlich brate = DIV_ROUND_UP(br->bitrate, (1 << shift) * 5); 36722103dec1SSimon Wunderlich if (brate == rate) { 36732103dec1SSimon Wunderlich *rates |= BIT(j); 36742103dec1SSimon Wunderlich count++; 36752103dec1SSimon Wunderlich break; 36762103dec1SSimon Wunderlich } 36772103dec1SSimon Wunderlich } 36782103dec1SSimon Wunderlich } 36792103dec1SSimon Wunderlich return count; 36802103dec1SSimon Wunderlich } 36812103dec1SSimon Wunderlich 3682fc8a7321SJohannes Berg int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata, 36836b77863bSJohannes Berg struct sk_buff *skb, bool need_basic, 368457fbcce3SJohannes Berg enum nl80211_band band) 3685768db343SArik Nemtsov { 3686768db343SArik Nemtsov struct ieee80211_local *local = sdata->local; 3687768db343SArik Nemtsov struct ieee80211_supported_band *sband; 36882103dec1SSimon Wunderlich int rate, shift; 3689768db343SArik Nemtsov u8 i, rates, *pos; 3690fc8a7321SJohannes Berg u32 basic_rates = sdata->vif.bss_conf.basic_rates; 36912103dec1SSimon Wunderlich u32 rate_flags; 3692768db343SArik Nemtsov 36932103dec1SSimon Wunderlich shift = ieee80211_vif_get_shift(&sdata->vif); 36942103dec1SSimon Wunderlich rate_flags = ieee80211_chandef_rate_flags(&sdata->vif.bss_conf.chandef); 36956b77863bSJohannes Berg sband = local->hw.wiphy->bands[band]; 36962103dec1SSimon Wunderlich rates = 0; 36972103dec1SSimon Wunderlich for (i = 0; i < sband->n_bitrates; i++) { 36982103dec1SSimon Wunderlich if ((rate_flags & sband->bitrates[i].flags) != rate_flags) 36992103dec1SSimon Wunderlich continue; 37002103dec1SSimon Wunderlich rates++; 37012103dec1SSimon Wunderlich } 3702768db343SArik Nemtsov if (rates > 8) 3703768db343SArik Nemtsov rates = 8; 3704768db343SArik Nemtsov 3705768db343SArik Nemtsov if (skb_tailroom(skb) < rates + 2) 3706768db343SArik Nemtsov return -ENOMEM; 3707768db343SArik Nemtsov 3708768db343SArik Nemtsov pos = skb_put(skb, rates + 2); 3709768db343SArik Nemtsov *pos++ = WLAN_EID_SUPP_RATES; 3710768db343SArik Nemtsov *pos++ = rates; 3711768db343SArik Nemtsov for (i = 0; i < rates; i++) { 3712657c3e0cSAshok Nagarajan u8 basic = 0; 37132103dec1SSimon Wunderlich if ((rate_flags & sband->bitrates[i].flags) != rate_flags) 37142103dec1SSimon Wunderlich continue; 37152103dec1SSimon Wunderlich 3716657c3e0cSAshok Nagarajan if (need_basic && basic_rates & BIT(i)) 3717657c3e0cSAshok Nagarajan basic = 0x80; 37182103dec1SSimon Wunderlich rate = DIV_ROUND_UP(sband->bitrates[i].bitrate, 37192103dec1SSimon Wunderlich 5 * (1 << shift)); 37202103dec1SSimon Wunderlich *pos++ = basic | (u8) rate; 3721768db343SArik Nemtsov } 3722768db343SArik Nemtsov 3723768db343SArik Nemtsov return 0; 3724768db343SArik Nemtsov } 3725768db343SArik Nemtsov 3726fc8a7321SJohannes Berg int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata, 37276b77863bSJohannes Berg struct sk_buff *skb, bool need_basic, 372857fbcce3SJohannes Berg enum nl80211_band band) 3729768db343SArik Nemtsov { 3730768db343SArik Nemtsov struct ieee80211_local *local = sdata->local; 3731768db343SArik Nemtsov struct ieee80211_supported_band *sband; 3732cc63ec76SChun-Yeow Yeoh int rate, shift; 3733768db343SArik Nemtsov u8 i, exrates, *pos; 3734fc8a7321SJohannes Berg u32 basic_rates = sdata->vif.bss_conf.basic_rates; 37352103dec1SSimon Wunderlich u32 rate_flags; 37362103dec1SSimon Wunderlich 37372103dec1SSimon Wunderlich rate_flags = ieee80211_chandef_rate_flags(&sdata->vif.bss_conf.chandef); 37382103dec1SSimon Wunderlich shift = ieee80211_vif_get_shift(&sdata->vif); 3739768db343SArik Nemtsov 37406b77863bSJohannes Berg sband = local->hw.wiphy->bands[band]; 37412103dec1SSimon Wunderlich exrates = 0; 37422103dec1SSimon Wunderlich for (i = 0; i < sband->n_bitrates; i++) { 37432103dec1SSimon Wunderlich if ((rate_flags & sband->bitrates[i].flags) != rate_flags) 37442103dec1SSimon Wunderlich continue; 37452103dec1SSimon Wunderlich exrates++; 37462103dec1SSimon Wunderlich } 37472103dec1SSimon Wunderlich 3748768db343SArik Nemtsov if (exrates > 8) 3749768db343SArik Nemtsov exrates -= 8; 3750768db343SArik Nemtsov else 3751768db343SArik Nemtsov exrates = 0; 3752768db343SArik Nemtsov 3753768db343SArik Nemtsov if (skb_tailroom(skb) < exrates + 2) 3754768db343SArik Nemtsov return -ENOMEM; 3755768db343SArik Nemtsov 3756768db343SArik Nemtsov if (exrates) { 3757768db343SArik Nemtsov pos = skb_put(skb, exrates + 2); 3758768db343SArik Nemtsov *pos++ = WLAN_EID_EXT_SUPP_RATES; 3759768db343SArik Nemtsov *pos++ = exrates; 3760768db343SArik Nemtsov for (i = 8; i < sband->n_bitrates; i++) { 3761657c3e0cSAshok Nagarajan u8 basic = 0; 37622103dec1SSimon Wunderlich if ((rate_flags & sband->bitrates[i].flags) 37632103dec1SSimon Wunderlich != rate_flags) 37642103dec1SSimon Wunderlich continue; 3765657c3e0cSAshok Nagarajan if (need_basic && basic_rates & BIT(i)) 3766657c3e0cSAshok Nagarajan basic = 0x80; 37672103dec1SSimon Wunderlich rate = DIV_ROUND_UP(sband->bitrates[i].bitrate, 37682103dec1SSimon Wunderlich 5 * (1 << shift)); 37692103dec1SSimon Wunderlich *pos++ = basic | (u8) rate; 3770768db343SArik Nemtsov } 3771768db343SArik Nemtsov } 3772768db343SArik Nemtsov return 0; 3773768db343SArik Nemtsov } 37741dae27f8SWey-Yi Guy 37751dae27f8SWey-Yi Guy int ieee80211_ave_rssi(struct ieee80211_vif *vif) 37761dae27f8SWey-Yi Guy { 37771dae27f8SWey-Yi Guy struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 37781dae27f8SWey-Yi Guy struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 37791dae27f8SWey-Yi Guy 3780be6bcabcSWey-Yi Guy if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) { 3781be6bcabcSWey-Yi Guy /* non-managed type inferfaces */ 3782be6bcabcSWey-Yi Guy return 0; 3783be6bcabcSWey-Yi Guy } 3784338c17aeSJohannes Berg return -ewma_beacon_signal_read(&ifmgd->ave_beacon_signal); 37851dae27f8SWey-Yi Guy } 37860d8a0a17SWey-Yi Guy EXPORT_SYMBOL_GPL(ieee80211_ave_rssi); 378704ecd257SJohannes Berg 378804ecd257SJohannes Berg u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs) 378904ecd257SJohannes Berg { 379004ecd257SJohannes Berg if (!mcs) 379104ecd257SJohannes Berg return 1; 379204ecd257SJohannes Berg 379304ecd257SJohannes Berg /* TODO: consider rx_highest */ 379404ecd257SJohannes Berg 379504ecd257SJohannes Berg if (mcs->rx_mask[3]) 379604ecd257SJohannes Berg return 4; 379704ecd257SJohannes Berg if (mcs->rx_mask[2]) 379804ecd257SJohannes Berg return 3; 379904ecd257SJohannes Berg if (mcs->rx_mask[1]) 380004ecd257SJohannes Berg return 2; 380104ecd257SJohannes Berg return 1; 380204ecd257SJohannes Berg } 3803f4bda337SThomas Pedersen 3804f4bda337SThomas Pedersen /** 3805f4bda337SThomas Pedersen * ieee80211_calculate_rx_timestamp - calculate timestamp in frame 3806f4bda337SThomas Pedersen * @local: mac80211 hw info struct 3807f4bda337SThomas Pedersen * @status: RX status 3808f4bda337SThomas Pedersen * @mpdu_len: total MPDU length (including FCS) 3809f4bda337SThomas Pedersen * @mpdu_offset: offset into MPDU to calculate timestamp at 3810f4bda337SThomas Pedersen * 3811f4bda337SThomas Pedersen * This function calculates the RX timestamp at the given MPDU offset, taking 3812f4bda337SThomas Pedersen * into account what the RX timestamp was. An offset of 0 will just normalize 3813f4bda337SThomas Pedersen * the timestamp to TSF at beginning of MPDU reception. 3814f4bda337SThomas Pedersen */ 3815f4bda337SThomas Pedersen u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local, 3816f4bda337SThomas Pedersen struct ieee80211_rx_status *status, 3817f4bda337SThomas Pedersen unsigned int mpdu_len, 3818f4bda337SThomas Pedersen unsigned int mpdu_offset) 3819f4bda337SThomas Pedersen { 3820f4bda337SThomas Pedersen u64 ts = status->mactime; 3821f4bda337SThomas Pedersen struct rate_info ri; 3822f4bda337SThomas Pedersen u16 rate; 3823da388233SAvraham Stern u8 n_ltf; 3824f4bda337SThomas Pedersen 3825f4bda337SThomas Pedersen if (WARN_ON(!ieee80211_have_rx_timestamp(status))) 3826f4bda337SThomas Pedersen return 0; 3827f4bda337SThomas Pedersen 3828f4bda337SThomas Pedersen memset(&ri, 0, sizeof(ri)); 3829f4bda337SThomas Pedersen 383035f4962cSJohannes Berg ri.bw = status->bw; 383135f4962cSJohannes Berg 3832f4bda337SThomas Pedersen /* Fill cfg80211 rate info */ 3833da6a4352SJohannes Berg switch (status->encoding) { 3834da388233SAvraham Stern case RX_ENC_HE: 3835da388233SAvraham Stern ri.flags |= RATE_INFO_FLAGS_HE_MCS; 3836da388233SAvraham Stern ri.mcs = status->rate_idx; 3837da388233SAvraham Stern ri.nss = status->nss; 3838da388233SAvraham Stern ri.he_ru_alloc = status->he_ru; 3839da388233SAvraham Stern if (status->enc_flags & RX_ENC_FLAG_SHORT_GI) 3840da388233SAvraham Stern ri.flags |= RATE_INFO_FLAGS_SHORT_GI; 3841da388233SAvraham Stern 3842da388233SAvraham Stern /* 3843da388233SAvraham Stern * See P802.11ax_D6.0, section 27.3.4 for 3844da388233SAvraham Stern * VHT PPDU format. 3845da388233SAvraham Stern */ 3846da388233SAvraham Stern if (status->flag & RX_FLAG_MACTIME_PLCP_START) { 3847da388233SAvraham Stern mpdu_offset += 2; 3848da388233SAvraham Stern ts += 36; 3849da388233SAvraham Stern 3850da388233SAvraham Stern /* 3851da388233SAvraham Stern * TODO: 3852da388233SAvraham Stern * For HE MU PPDU, add the HE-SIG-B. 3853da388233SAvraham Stern * For HE ER PPDU, add 8us for the HE-SIG-A. 3854da388233SAvraham Stern * For HE TB PPDU, add 4us for the HE-STF. 3855da388233SAvraham Stern * Add the HE-LTF durations - variable. 3856da388233SAvraham Stern */ 3857da388233SAvraham Stern } 3858da388233SAvraham Stern 3859da388233SAvraham Stern break; 3860da6a4352SJohannes Berg case RX_ENC_HT: 3861f4bda337SThomas Pedersen ri.mcs = status->rate_idx; 3862f4bda337SThomas Pedersen ri.flags |= RATE_INFO_FLAGS_MCS; 38637fdd69c5SJohannes Berg if (status->enc_flags & RX_ENC_FLAG_SHORT_GI) 3864f4bda337SThomas Pedersen ri.flags |= RATE_INFO_FLAGS_SHORT_GI; 3865da388233SAvraham Stern 3866da388233SAvraham Stern /* 3867da388233SAvraham Stern * See P802.11REVmd_D3.0, section 19.3.2 for 3868da388233SAvraham Stern * HT PPDU format. 3869da388233SAvraham Stern */ 3870da388233SAvraham Stern if (status->flag & RX_FLAG_MACTIME_PLCP_START) { 3871da388233SAvraham Stern mpdu_offset += 2; 3872da388233SAvraham Stern if (status->enc_flags & RX_ENC_FLAG_HT_GF) 3873da388233SAvraham Stern ts += 24; 3874da388233SAvraham Stern else 3875da388233SAvraham Stern ts += 32; 3876da388233SAvraham Stern 3877da388233SAvraham Stern /* 3878da388233SAvraham Stern * Add Data HT-LTFs per streams 3879da388233SAvraham Stern * TODO: add Extension HT-LTFs, 4us per LTF 3880da388233SAvraham Stern */ 3881da388233SAvraham Stern n_ltf = ((ri.mcs >> 3) & 3) + 1; 3882da388233SAvraham Stern n_ltf = n_ltf == 3 ? 4 : n_ltf; 3883da388233SAvraham Stern ts += n_ltf * 4; 3884da388233SAvraham Stern } 3885da388233SAvraham Stern 3886da6a4352SJohannes Berg break; 3887da6a4352SJohannes Berg case RX_ENC_VHT: 38885614618eSJohannes Berg ri.flags |= RATE_INFO_FLAGS_VHT_MCS; 38895614618eSJohannes Berg ri.mcs = status->rate_idx; 38908613c948SJohannes Berg ri.nss = status->nss; 38917fdd69c5SJohannes Berg if (status->enc_flags & RX_ENC_FLAG_SHORT_GI) 38925614618eSJohannes Berg ri.flags |= RATE_INFO_FLAGS_SHORT_GI; 3893da388233SAvraham Stern 3894da388233SAvraham Stern /* 3895da388233SAvraham Stern * See P802.11REVmd_D3.0, section 21.3.2 for 3896da388233SAvraham Stern * VHT PPDU format. 3897da388233SAvraham Stern */ 3898da388233SAvraham Stern if (status->flag & RX_FLAG_MACTIME_PLCP_START) { 3899da388233SAvraham Stern mpdu_offset += 2; 3900da388233SAvraham Stern ts += 36; 3901da388233SAvraham Stern 3902da388233SAvraham Stern /* 3903da388233SAvraham Stern * Add VHT-LTFs per streams 3904da388233SAvraham Stern */ 3905da388233SAvraham Stern n_ltf = (ri.nss != 1) && (ri.nss % 2) ? 3906da388233SAvraham Stern ri.nss + 1 : ri.nss; 3907da388233SAvraham Stern ts += 4 * n_ltf; 3908da388233SAvraham Stern } 3909da388233SAvraham Stern 3910da6a4352SJohannes Berg break; 3911da6a4352SJohannes Berg default: 3912da6a4352SJohannes Berg WARN_ON(1); 3913fc0561dcSGustavo A. R. Silva fallthrough; 3914da6a4352SJohannes Berg case RX_ENC_LEGACY: { 3915f4bda337SThomas Pedersen struct ieee80211_supported_band *sband; 39162103dec1SSimon Wunderlich int shift = 0; 39172103dec1SSimon Wunderlich int bitrate; 39182103dec1SSimon Wunderlich 3919da6a4352SJohannes Berg switch (status->bw) { 3920da6a4352SJohannes Berg case RATE_INFO_BW_10: 39212103dec1SSimon Wunderlich shift = 1; 3922da6a4352SJohannes Berg break; 3923da6a4352SJohannes Berg case RATE_INFO_BW_5: 39242103dec1SSimon Wunderlich shift = 2; 3925da6a4352SJohannes Berg break; 3926b51f3beeSJohannes Berg } 3927f4bda337SThomas Pedersen 3928f4bda337SThomas Pedersen sband = local->hw.wiphy->bands[status->band]; 39292103dec1SSimon Wunderlich bitrate = sband->bitrates[status->rate_idx].bitrate; 39302103dec1SSimon Wunderlich ri.legacy = DIV_ROUND_UP(bitrate, (1 << shift)); 3931f4a0f0c5SJohannes Berg 3932f4a0f0c5SJohannes Berg if (status->flag & RX_FLAG_MACTIME_PLCP_START) { 393357fbcce3SJohannes Berg if (status->band == NL80211_BAND_5GHZ) { 3934f4a0f0c5SJohannes Berg ts += 20 << shift; 3935f4a0f0c5SJohannes Berg mpdu_offset += 2; 39367fdd69c5SJohannes Berg } else if (status->enc_flags & RX_ENC_FLAG_SHORTPRE) { 3937f4a0f0c5SJohannes Berg ts += 96; 3938f4a0f0c5SJohannes Berg } else { 3939f4a0f0c5SJohannes Berg ts += 192; 3940f4a0f0c5SJohannes Berg } 3941f4a0f0c5SJohannes Berg } 3942da6a4352SJohannes Berg break; 3943da6a4352SJohannes Berg } 3944f4bda337SThomas Pedersen } 3945f4bda337SThomas Pedersen 3946f4bda337SThomas Pedersen rate = cfg80211_calculate_bitrate(&ri); 3947d86aa4f8SJohannes Berg if (WARN_ONCE(!rate, 3948f980ebc0SSara Sharon "Invalid bitrate: flags=0x%llx, idx=%d, vht_nss=%d\n", 3949f980ebc0SSara Sharon (unsigned long long)status->flag, status->rate_idx, 39508613c948SJohannes Berg status->nss)) 3951d86aa4f8SJohannes Berg return 0; 3952f4bda337SThomas Pedersen 3953f4bda337SThomas Pedersen /* rewind from end of MPDU */ 3954f4bda337SThomas Pedersen if (status->flag & RX_FLAG_MACTIME_END) 3955f4bda337SThomas Pedersen ts -= mpdu_len * 8 * 10 / rate; 3956f4bda337SThomas Pedersen 3957f4bda337SThomas Pedersen ts += mpdu_offset * 8 * 10 / rate; 3958f4bda337SThomas Pedersen 3959f4bda337SThomas Pedersen return ts; 3960f4bda337SThomas Pedersen } 3961164eb02dSSimon Wunderlich 3962164eb02dSSimon Wunderlich void ieee80211_dfs_cac_cancel(struct ieee80211_local *local) 3963164eb02dSSimon Wunderlich { 3964164eb02dSSimon Wunderlich struct ieee80211_sub_if_data *sdata; 3965d2859df5SJanusz Dziedzic struct cfg80211_chan_def chandef; 3966164eb02dSSimon Wunderlich 39674a199068SJohannes Berg /* for interface list, to avoid linking iflist_mtx and chanctx_mtx */ 3968a05829a7SJohannes Berg lockdep_assert_wiphy(local->hw.wiphy); 39694a199068SJohannes Berg 397034a3740dSJohannes Berg mutex_lock(&local->mtx); 3971164eb02dSSimon Wunderlich list_for_each_entry(sdata, &local->interfaces, list) { 397234a3740dSJohannes Berg /* it might be waiting for the local->mtx, but then 397334a3740dSJohannes Berg * by the time it gets it, sdata->wdev.cac_started 397434a3740dSJohannes Berg * will no longer be true 397534a3740dSJohannes Berg */ 397634a3740dSJohannes Berg cancel_delayed_work(&sdata->dfs_cac_timer_work); 3977164eb02dSSimon Wunderlich 3978164eb02dSSimon Wunderlich if (sdata->wdev.cac_started) { 3979d2859df5SJanusz Dziedzic chandef = sdata->vif.bss_conf.chandef; 3980164eb02dSSimon Wunderlich ieee80211_vif_release_channel(sdata); 3981164eb02dSSimon Wunderlich cfg80211_cac_event(sdata->dev, 3982d2859df5SJanusz Dziedzic &chandef, 3983164eb02dSSimon Wunderlich NL80211_RADAR_CAC_ABORTED, 3984164eb02dSSimon Wunderlich GFP_KERNEL); 3985164eb02dSSimon Wunderlich } 3986164eb02dSSimon Wunderlich } 398734a3740dSJohannes Berg mutex_unlock(&local->mtx); 3988164eb02dSSimon Wunderlich } 3989164eb02dSSimon Wunderlich 3990164eb02dSSimon Wunderlich void ieee80211_dfs_radar_detected_work(struct work_struct *work) 3991164eb02dSSimon Wunderlich { 3992164eb02dSSimon Wunderlich struct ieee80211_local *local = 3993164eb02dSSimon Wunderlich container_of(work, struct ieee80211_local, radar_detected_work); 399484a3d1c9SJanusz Dziedzic struct cfg80211_chan_def chandef = local->hw.conf.chandef; 3995486cf4c0SMichal Kazior struct ieee80211_chanctx *ctx; 3996486cf4c0SMichal Kazior int num_chanctx = 0; 3997486cf4c0SMichal Kazior 3998486cf4c0SMichal Kazior mutex_lock(&local->chanctx_mtx); 3999486cf4c0SMichal Kazior list_for_each_entry(ctx, &local->chanctx_list, list) { 4000486cf4c0SMichal Kazior if (ctx->replace_state == IEEE80211_CHANCTX_REPLACES_OTHER) 4001486cf4c0SMichal Kazior continue; 4002486cf4c0SMichal Kazior 4003486cf4c0SMichal Kazior num_chanctx++; 4004486cf4c0SMichal Kazior chandef = ctx->conf.def; 4005486cf4c0SMichal Kazior } 4006486cf4c0SMichal Kazior mutex_unlock(&local->chanctx_mtx); 4007164eb02dSSimon Wunderlich 4008a05829a7SJohannes Berg wiphy_lock(local->hw.wiphy); 4009164eb02dSSimon Wunderlich ieee80211_dfs_cac_cancel(local); 4010a05829a7SJohannes Berg wiphy_unlock(local->hw.wiphy); 4011164eb02dSSimon Wunderlich 4012486cf4c0SMichal Kazior if (num_chanctx > 1) 4013486cf4c0SMichal Kazior /* XXX: multi-channel is not supported yet */ 4014164eb02dSSimon Wunderlich WARN_ON(1); 401584a3d1c9SJanusz Dziedzic else 4016164eb02dSSimon Wunderlich cfg80211_radar_event(local->hw.wiphy, &chandef, GFP_KERNEL); 4017164eb02dSSimon Wunderlich } 4018164eb02dSSimon Wunderlich 4019164eb02dSSimon Wunderlich void ieee80211_radar_detected(struct ieee80211_hw *hw) 4020164eb02dSSimon Wunderlich { 4021164eb02dSSimon Wunderlich struct ieee80211_local *local = hw_to_local(hw); 4022164eb02dSSimon Wunderlich 4023164eb02dSSimon Wunderlich trace_api_radar_detected(local); 4024164eb02dSSimon Wunderlich 40254a199068SJohannes Berg schedule_work(&local->radar_detected_work); 4026164eb02dSSimon Wunderlich } 4027164eb02dSSimon Wunderlich EXPORT_SYMBOL(ieee80211_radar_detected); 4028e6b7cde4SSimon Wunderlich 4029e6b7cde4SSimon Wunderlich u32 ieee80211_chandef_downgrade(struct cfg80211_chan_def *c) 4030e6b7cde4SSimon Wunderlich { 4031e6b7cde4SSimon Wunderlich u32 ret; 4032e6b7cde4SSimon Wunderlich int tmp; 4033e6b7cde4SSimon Wunderlich 4034e6b7cde4SSimon Wunderlich switch (c->width) { 4035e6b7cde4SSimon Wunderlich case NL80211_CHAN_WIDTH_20: 4036e6b7cde4SSimon Wunderlich c->width = NL80211_CHAN_WIDTH_20_NOHT; 4037e6b7cde4SSimon Wunderlich ret = IEEE80211_STA_DISABLE_HT | IEEE80211_STA_DISABLE_VHT; 4038e6b7cde4SSimon Wunderlich break; 4039e6b7cde4SSimon Wunderlich case NL80211_CHAN_WIDTH_40: 4040e6b7cde4SSimon Wunderlich c->width = NL80211_CHAN_WIDTH_20; 4041e6b7cde4SSimon Wunderlich c->center_freq1 = c->chan->center_freq; 4042e6b7cde4SSimon Wunderlich ret = IEEE80211_STA_DISABLE_40MHZ | 4043e6b7cde4SSimon Wunderlich IEEE80211_STA_DISABLE_VHT; 4044e6b7cde4SSimon Wunderlich break; 4045e6b7cde4SSimon Wunderlich case NL80211_CHAN_WIDTH_80: 4046e6b7cde4SSimon Wunderlich tmp = (30 + c->chan->center_freq - c->center_freq1)/20; 4047e6b7cde4SSimon Wunderlich /* n_P40 */ 4048e6b7cde4SSimon Wunderlich tmp /= 2; 4049e6b7cde4SSimon Wunderlich /* freq_P40 */ 4050e6b7cde4SSimon Wunderlich c->center_freq1 = c->center_freq1 - 20 + 40 * tmp; 4051e6b7cde4SSimon Wunderlich c->width = NL80211_CHAN_WIDTH_40; 4052e6b7cde4SSimon Wunderlich ret = IEEE80211_STA_DISABLE_VHT; 4053e6b7cde4SSimon Wunderlich break; 4054e6b7cde4SSimon Wunderlich case NL80211_CHAN_WIDTH_80P80: 4055e6b7cde4SSimon Wunderlich c->center_freq2 = 0; 4056e6b7cde4SSimon Wunderlich c->width = NL80211_CHAN_WIDTH_80; 4057e6b7cde4SSimon Wunderlich ret = IEEE80211_STA_DISABLE_80P80MHZ | 4058e6b7cde4SSimon Wunderlich IEEE80211_STA_DISABLE_160MHZ; 4059e6b7cde4SSimon Wunderlich break; 4060e6b7cde4SSimon Wunderlich case NL80211_CHAN_WIDTH_160: 4061e6b7cde4SSimon Wunderlich /* n_P20 */ 4062e6b7cde4SSimon Wunderlich tmp = (70 + c->chan->center_freq - c->center_freq1)/20; 4063e6b7cde4SSimon Wunderlich /* n_P80 */ 4064e6b7cde4SSimon Wunderlich tmp /= 4; 4065e6b7cde4SSimon Wunderlich c->center_freq1 = c->center_freq1 - 40 + 80 * tmp; 4066e6b7cde4SSimon Wunderlich c->width = NL80211_CHAN_WIDTH_80; 4067e6b7cde4SSimon Wunderlich ret = IEEE80211_STA_DISABLE_80P80MHZ | 4068e6b7cde4SSimon Wunderlich IEEE80211_STA_DISABLE_160MHZ; 4069e6b7cde4SSimon Wunderlich break; 40705dca295dSIlan Peer case NL80211_CHAN_WIDTH_320: 40715dca295dSIlan Peer /* n_P20 */ 40725dca295dSIlan Peer tmp = (150 + c->chan->center_freq - c->center_freq1) / 20; 40735dca295dSIlan Peer /* n_P160 */ 40745dca295dSIlan Peer tmp /= 80; 40755dca295dSIlan Peer c->center_freq1 = c->center_freq1 - 80 + 160 * tmp; 40765dca295dSIlan Peer c->width = NL80211_CHAN_WIDTH_160; 40775dca295dSIlan Peer ret = IEEE80211_STA_DISABLE_320MHZ; 40785dca295dSIlan Peer break; 4079e6b7cde4SSimon Wunderlich default: 4080e6b7cde4SSimon Wunderlich case NL80211_CHAN_WIDTH_20_NOHT: 4081e6b7cde4SSimon Wunderlich WARN_ON_ONCE(1); 4082e6b7cde4SSimon Wunderlich c->width = NL80211_CHAN_WIDTH_20_NOHT; 4083e6b7cde4SSimon Wunderlich ret = IEEE80211_STA_DISABLE_HT | IEEE80211_STA_DISABLE_VHT; 4084e6b7cde4SSimon Wunderlich break; 4085df78a0c0SThomas Pedersen case NL80211_CHAN_WIDTH_1: 4086df78a0c0SThomas Pedersen case NL80211_CHAN_WIDTH_2: 4087df78a0c0SThomas Pedersen case NL80211_CHAN_WIDTH_4: 4088df78a0c0SThomas Pedersen case NL80211_CHAN_WIDTH_8: 4089df78a0c0SThomas Pedersen case NL80211_CHAN_WIDTH_16: 4090e6b7cde4SSimon Wunderlich case NL80211_CHAN_WIDTH_5: 4091e6b7cde4SSimon Wunderlich case NL80211_CHAN_WIDTH_10: 4092e6b7cde4SSimon Wunderlich WARN_ON_ONCE(1); 4093e6b7cde4SSimon Wunderlich /* keep c->width */ 4094e6b7cde4SSimon Wunderlich ret = IEEE80211_STA_DISABLE_HT | IEEE80211_STA_DISABLE_VHT; 4095e6b7cde4SSimon Wunderlich break; 4096e6b7cde4SSimon Wunderlich } 4097e6b7cde4SSimon Wunderlich 4098e6b7cde4SSimon Wunderlich WARN_ON_ONCE(!cfg80211_chandef_valid(c)); 4099e6b7cde4SSimon Wunderlich 4100e6b7cde4SSimon Wunderlich return ret; 4101e6b7cde4SSimon Wunderlich } 4102687da132SEmmanuel Grumbach 4103687da132SEmmanuel Grumbach /* 4104687da132SEmmanuel Grumbach * Returns true if smps_mode_new is strictly more restrictive than 4105687da132SEmmanuel Grumbach * smps_mode_old. 4106687da132SEmmanuel Grumbach */ 4107687da132SEmmanuel Grumbach bool ieee80211_smps_is_restrictive(enum ieee80211_smps_mode smps_mode_old, 4108687da132SEmmanuel Grumbach enum ieee80211_smps_mode smps_mode_new) 4109687da132SEmmanuel Grumbach { 4110687da132SEmmanuel Grumbach if (WARN_ON_ONCE(smps_mode_old == IEEE80211_SMPS_AUTOMATIC || 4111687da132SEmmanuel Grumbach smps_mode_new == IEEE80211_SMPS_AUTOMATIC)) 4112687da132SEmmanuel Grumbach return false; 4113687da132SEmmanuel Grumbach 4114687da132SEmmanuel Grumbach switch (smps_mode_old) { 4115687da132SEmmanuel Grumbach case IEEE80211_SMPS_STATIC: 4116687da132SEmmanuel Grumbach return false; 4117687da132SEmmanuel Grumbach case IEEE80211_SMPS_DYNAMIC: 4118687da132SEmmanuel Grumbach return smps_mode_new == IEEE80211_SMPS_STATIC; 4119687da132SEmmanuel Grumbach case IEEE80211_SMPS_OFF: 4120687da132SEmmanuel Grumbach return smps_mode_new != IEEE80211_SMPS_OFF; 4121687da132SEmmanuel Grumbach default: 4122687da132SEmmanuel Grumbach WARN_ON(1); 4123687da132SEmmanuel Grumbach } 4124687da132SEmmanuel Grumbach 4125687da132SEmmanuel Grumbach return false; 4126687da132SEmmanuel Grumbach } 4127c6da674aSChun-Yeow Yeoh 4128c6da674aSChun-Yeow Yeoh int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata, 4129c6da674aSChun-Yeow Yeoh struct cfg80211_csa_settings *csa_settings) 4130c6da674aSChun-Yeow Yeoh { 4131c6da674aSChun-Yeow Yeoh struct sk_buff *skb; 4132c6da674aSChun-Yeow Yeoh struct ieee80211_mgmt *mgmt; 4133c6da674aSChun-Yeow Yeoh struct ieee80211_local *local = sdata->local; 4134c6da674aSChun-Yeow Yeoh int freq; 41354c121fd6SJohannes Berg int hdr_len = offsetofend(struct ieee80211_mgmt, 41364c121fd6SJohannes Berg u.action.u.chan_switch); 4137c6da674aSChun-Yeow Yeoh u8 *pos; 4138c6da674aSChun-Yeow Yeoh 4139c6da674aSChun-Yeow Yeoh if (sdata->vif.type != NL80211_IFTYPE_ADHOC && 4140c6da674aSChun-Yeow Yeoh sdata->vif.type != NL80211_IFTYPE_MESH_POINT) 4141c6da674aSChun-Yeow Yeoh return -EOPNOTSUPP; 4142c6da674aSChun-Yeow Yeoh 4143c6da674aSChun-Yeow Yeoh skb = dev_alloc_skb(local->tx_headroom + hdr_len + 4144c6da674aSChun-Yeow Yeoh 5 + /* channel switch announcement element */ 4145c6da674aSChun-Yeow Yeoh 3 + /* secondary channel offset element */ 414675d627d5SSimon Wunderlich 5 + /* wide bandwidth channel switch announcement */ 4147c6da674aSChun-Yeow Yeoh 8); /* mesh channel switch parameters element */ 4148c6da674aSChun-Yeow Yeoh if (!skb) 4149c6da674aSChun-Yeow Yeoh return -ENOMEM; 4150c6da674aSChun-Yeow Yeoh 4151c6da674aSChun-Yeow Yeoh skb_reserve(skb, local->tx_headroom); 4152b080db58SJohannes Berg mgmt = skb_put_zero(skb, hdr_len); 4153c6da674aSChun-Yeow Yeoh mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | 4154c6da674aSChun-Yeow Yeoh IEEE80211_STYPE_ACTION); 4155c6da674aSChun-Yeow Yeoh 4156c6da674aSChun-Yeow Yeoh eth_broadcast_addr(mgmt->da); 4157c6da674aSChun-Yeow Yeoh memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN); 4158c6da674aSChun-Yeow Yeoh if (ieee80211_vif_is_mesh(&sdata->vif)) { 4159c6da674aSChun-Yeow Yeoh memcpy(mgmt->bssid, sdata->vif.addr, ETH_ALEN); 4160c6da674aSChun-Yeow Yeoh } else { 4161c6da674aSChun-Yeow Yeoh struct ieee80211_if_ibss *ifibss = &sdata->u.ibss; 4162c6da674aSChun-Yeow Yeoh memcpy(mgmt->bssid, ifibss->bssid, ETH_ALEN); 4163c6da674aSChun-Yeow Yeoh } 4164c6da674aSChun-Yeow Yeoh mgmt->u.action.category = WLAN_CATEGORY_SPECTRUM_MGMT; 4165c6da674aSChun-Yeow Yeoh mgmt->u.action.u.chan_switch.action_code = WLAN_ACTION_SPCT_CHL_SWITCH; 4166c6da674aSChun-Yeow Yeoh pos = skb_put(skb, 5); 4167c6da674aSChun-Yeow Yeoh *pos++ = WLAN_EID_CHANNEL_SWITCH; /* EID */ 4168c6da674aSChun-Yeow Yeoh *pos++ = 3; /* IE length */ 4169c6da674aSChun-Yeow Yeoh *pos++ = csa_settings->block_tx ? 1 : 0; /* CSA mode */ 4170c6da674aSChun-Yeow Yeoh freq = csa_settings->chandef.chan->center_freq; 4171c6da674aSChun-Yeow Yeoh *pos++ = ieee80211_frequency_to_channel(freq); /* channel */ 4172c6da674aSChun-Yeow Yeoh *pos++ = csa_settings->count; /* count */ 4173c6da674aSChun-Yeow Yeoh 4174c6da674aSChun-Yeow Yeoh if (csa_settings->chandef.width == NL80211_CHAN_WIDTH_40) { 4175c6da674aSChun-Yeow Yeoh enum nl80211_channel_type ch_type; 4176c6da674aSChun-Yeow Yeoh 4177c6da674aSChun-Yeow Yeoh skb_put(skb, 3); 4178c6da674aSChun-Yeow Yeoh *pos++ = WLAN_EID_SECONDARY_CHANNEL_OFFSET; /* EID */ 4179c6da674aSChun-Yeow Yeoh *pos++ = 1; /* IE length */ 4180c6da674aSChun-Yeow Yeoh ch_type = cfg80211_get_chandef_type(&csa_settings->chandef); 4181c6da674aSChun-Yeow Yeoh if (ch_type == NL80211_CHAN_HT40PLUS) 4182c6da674aSChun-Yeow Yeoh *pos++ = IEEE80211_HT_PARAM_CHA_SEC_ABOVE; 4183c6da674aSChun-Yeow Yeoh else 4184c6da674aSChun-Yeow Yeoh *pos++ = IEEE80211_HT_PARAM_CHA_SEC_BELOW; 4185c6da674aSChun-Yeow Yeoh } 4186c6da674aSChun-Yeow Yeoh 4187c6da674aSChun-Yeow Yeoh if (ieee80211_vif_is_mesh(&sdata->vif)) { 4188c6da674aSChun-Yeow Yeoh struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 4189c6da674aSChun-Yeow Yeoh 4190c6da674aSChun-Yeow Yeoh skb_put(skb, 8); 4191c6da674aSChun-Yeow Yeoh *pos++ = WLAN_EID_CHAN_SWITCH_PARAM; /* EID */ 4192c6da674aSChun-Yeow Yeoh *pos++ = 6; /* IE length */ 4193c6da674aSChun-Yeow Yeoh *pos++ = sdata->u.mesh.mshcfg.dot11MeshTTL; /* Mesh TTL */ 4194c6da674aSChun-Yeow Yeoh *pos = 0x00; /* Mesh Flag: Tx Restrict, Initiator, Reason */ 4195c6da674aSChun-Yeow Yeoh *pos |= WLAN_EID_CHAN_SWITCH_PARAM_INITIATOR; 4196c6da674aSChun-Yeow Yeoh *pos++ |= csa_settings->block_tx ? 4197c6da674aSChun-Yeow Yeoh WLAN_EID_CHAN_SWITCH_PARAM_TX_RESTRICT : 0x00; 4198c6da674aSChun-Yeow Yeoh put_unaligned_le16(WLAN_REASON_MESH_CHAN, pos); /* Reason Cd */ 4199c6da674aSChun-Yeow Yeoh pos += 2; 4200ca91dc97SChun-Yeow Yeoh put_unaligned_le16(ifmsh->pre_value, pos);/* Precedence Value */ 4201c6da674aSChun-Yeow Yeoh pos += 2; 4202c6da674aSChun-Yeow Yeoh } 4203c6da674aSChun-Yeow Yeoh 420475d627d5SSimon Wunderlich if (csa_settings->chandef.width == NL80211_CHAN_WIDTH_80 || 420575d627d5SSimon Wunderlich csa_settings->chandef.width == NL80211_CHAN_WIDTH_80P80 || 420675d627d5SSimon Wunderlich csa_settings->chandef.width == NL80211_CHAN_WIDTH_160) { 420775d627d5SSimon Wunderlich skb_put(skb, 5); 420875d627d5SSimon Wunderlich ieee80211_ie_build_wide_bw_cs(pos, &csa_settings->chandef); 420975d627d5SSimon Wunderlich } 421075d627d5SSimon Wunderlich 4211c6da674aSChun-Yeow Yeoh ieee80211_tx_skb(sdata, skb); 4212c6da674aSChun-Yeow Yeoh return 0; 4213c6da674aSChun-Yeow Yeoh } 42142475b1ccSMax Stepanov 4215a7022e65SFelix Fietkau static bool 4216a7022e65SFelix Fietkau ieee80211_extend_noa_desc(struct ieee80211_noa_data *data, u32 tsf, int i) 4217a7022e65SFelix Fietkau { 4218a7022e65SFelix Fietkau s32 end = data->desc[i].start + data->desc[i].duration - (tsf + 1); 4219a7022e65SFelix Fietkau int skip; 4220a7022e65SFelix Fietkau 4221a7022e65SFelix Fietkau if (end > 0) 4222a7022e65SFelix Fietkau return false; 4223a7022e65SFelix Fietkau 4224519ee691SJanusz.Dziedzic@tieto.com /* One shot NOA */ 4225519ee691SJanusz.Dziedzic@tieto.com if (data->count[i] == 1) 4226519ee691SJanusz.Dziedzic@tieto.com return false; 4227519ee691SJanusz.Dziedzic@tieto.com 4228519ee691SJanusz.Dziedzic@tieto.com if (data->desc[i].interval == 0) 4229519ee691SJanusz.Dziedzic@tieto.com return false; 4230519ee691SJanusz.Dziedzic@tieto.com 4231a7022e65SFelix Fietkau /* End time is in the past, check for repetitions */ 4232a7022e65SFelix Fietkau skip = DIV_ROUND_UP(-end, data->desc[i].interval); 4233a7022e65SFelix Fietkau if (data->count[i] < 255) { 4234a7022e65SFelix Fietkau if (data->count[i] <= skip) { 4235a7022e65SFelix Fietkau data->count[i] = 0; 4236a7022e65SFelix Fietkau return false; 4237a7022e65SFelix Fietkau } 4238a7022e65SFelix Fietkau 4239a7022e65SFelix Fietkau data->count[i] -= skip; 4240a7022e65SFelix Fietkau } 4241a7022e65SFelix Fietkau 4242a7022e65SFelix Fietkau data->desc[i].start += skip * data->desc[i].interval; 4243a7022e65SFelix Fietkau 4244a7022e65SFelix Fietkau return true; 4245a7022e65SFelix Fietkau } 4246a7022e65SFelix Fietkau 4247a7022e65SFelix Fietkau static bool 4248a7022e65SFelix Fietkau ieee80211_extend_absent_time(struct ieee80211_noa_data *data, u32 tsf, 4249a7022e65SFelix Fietkau s32 *offset) 4250a7022e65SFelix Fietkau { 4251a7022e65SFelix Fietkau bool ret = false; 4252a7022e65SFelix Fietkau int i; 4253a7022e65SFelix Fietkau 4254a7022e65SFelix Fietkau for (i = 0; i < IEEE80211_P2P_NOA_DESC_MAX; i++) { 4255a7022e65SFelix Fietkau s32 cur; 4256a7022e65SFelix Fietkau 4257a7022e65SFelix Fietkau if (!data->count[i]) 4258a7022e65SFelix Fietkau continue; 4259a7022e65SFelix Fietkau 4260a7022e65SFelix Fietkau if (ieee80211_extend_noa_desc(data, tsf + *offset, i)) 4261a7022e65SFelix Fietkau ret = true; 4262a7022e65SFelix Fietkau 4263a7022e65SFelix Fietkau cur = data->desc[i].start - tsf; 4264a7022e65SFelix Fietkau if (cur > *offset) 4265a7022e65SFelix Fietkau continue; 4266a7022e65SFelix Fietkau 4267a7022e65SFelix Fietkau cur = data->desc[i].start + data->desc[i].duration - tsf; 4268a7022e65SFelix Fietkau if (cur > *offset) 4269a7022e65SFelix Fietkau *offset = cur; 4270a7022e65SFelix Fietkau } 4271a7022e65SFelix Fietkau 4272a7022e65SFelix Fietkau return ret; 4273a7022e65SFelix Fietkau } 4274a7022e65SFelix Fietkau 4275a7022e65SFelix Fietkau static u32 4276a7022e65SFelix Fietkau ieee80211_get_noa_absent_time(struct ieee80211_noa_data *data, u32 tsf) 4277a7022e65SFelix Fietkau { 4278a7022e65SFelix Fietkau s32 offset = 0; 4279a7022e65SFelix Fietkau int tries = 0; 4280a7022e65SFelix Fietkau /* 4281a7022e65SFelix Fietkau * arbitrary limit, used to avoid infinite loops when combined NoA 4282a7022e65SFelix Fietkau * descriptors cover the full time period. 4283a7022e65SFelix Fietkau */ 4284a7022e65SFelix Fietkau int max_tries = 5; 4285a7022e65SFelix Fietkau 4286a7022e65SFelix Fietkau ieee80211_extend_absent_time(data, tsf, &offset); 4287a7022e65SFelix Fietkau do { 4288a7022e65SFelix Fietkau if (!ieee80211_extend_absent_time(data, tsf, &offset)) 4289a7022e65SFelix Fietkau break; 4290a7022e65SFelix Fietkau 4291a7022e65SFelix Fietkau tries++; 4292a7022e65SFelix Fietkau } while (tries < max_tries); 4293a7022e65SFelix Fietkau 4294a7022e65SFelix Fietkau return offset; 4295a7022e65SFelix Fietkau } 4296a7022e65SFelix Fietkau 4297a7022e65SFelix Fietkau void ieee80211_update_p2p_noa(struct ieee80211_noa_data *data, u32 tsf) 4298a7022e65SFelix Fietkau { 4299a7022e65SFelix Fietkau u32 next_offset = BIT(31) - 1; 4300a7022e65SFelix Fietkau int i; 4301a7022e65SFelix Fietkau 4302a7022e65SFelix Fietkau data->absent = 0; 4303a7022e65SFelix Fietkau data->has_next_tsf = false; 4304a7022e65SFelix Fietkau for (i = 0; i < IEEE80211_P2P_NOA_DESC_MAX; i++) { 4305a7022e65SFelix Fietkau s32 start; 4306a7022e65SFelix Fietkau 4307a7022e65SFelix Fietkau if (!data->count[i]) 4308a7022e65SFelix Fietkau continue; 4309a7022e65SFelix Fietkau 4310a7022e65SFelix Fietkau ieee80211_extend_noa_desc(data, tsf, i); 4311a7022e65SFelix Fietkau start = data->desc[i].start - tsf; 4312a7022e65SFelix Fietkau if (start <= 0) 4313a7022e65SFelix Fietkau data->absent |= BIT(i); 4314a7022e65SFelix Fietkau 4315a7022e65SFelix Fietkau if (next_offset > start) 4316a7022e65SFelix Fietkau next_offset = start; 4317a7022e65SFelix Fietkau 4318a7022e65SFelix Fietkau data->has_next_tsf = true; 4319a7022e65SFelix Fietkau } 4320a7022e65SFelix Fietkau 4321a7022e65SFelix Fietkau if (data->absent) 4322a7022e65SFelix Fietkau next_offset = ieee80211_get_noa_absent_time(data, tsf); 4323a7022e65SFelix Fietkau 4324a7022e65SFelix Fietkau data->next_tsf = tsf + next_offset; 4325a7022e65SFelix Fietkau } 4326a7022e65SFelix Fietkau EXPORT_SYMBOL(ieee80211_update_p2p_noa); 4327a7022e65SFelix Fietkau 4328a7022e65SFelix Fietkau int ieee80211_parse_p2p_noa(const struct ieee80211_p2p_noa_attr *attr, 4329a7022e65SFelix Fietkau struct ieee80211_noa_data *data, u32 tsf) 4330a7022e65SFelix Fietkau { 4331a7022e65SFelix Fietkau int ret = 0; 4332a7022e65SFelix Fietkau int i; 4333a7022e65SFelix Fietkau 4334a7022e65SFelix Fietkau memset(data, 0, sizeof(*data)); 4335a7022e65SFelix Fietkau 4336a7022e65SFelix Fietkau for (i = 0; i < IEEE80211_P2P_NOA_DESC_MAX; i++) { 4337a7022e65SFelix Fietkau const struct ieee80211_p2p_noa_desc *desc = &attr->desc[i]; 4338a7022e65SFelix Fietkau 4339a7022e65SFelix Fietkau if (!desc->count || !desc->duration) 4340a7022e65SFelix Fietkau continue; 4341a7022e65SFelix Fietkau 4342a7022e65SFelix Fietkau data->count[i] = desc->count; 4343a7022e65SFelix Fietkau data->desc[i].start = le32_to_cpu(desc->start_time); 4344a7022e65SFelix Fietkau data->desc[i].duration = le32_to_cpu(desc->duration); 4345a7022e65SFelix Fietkau data->desc[i].interval = le32_to_cpu(desc->interval); 4346a7022e65SFelix Fietkau 4347a7022e65SFelix Fietkau if (data->count[i] > 1 && 4348a7022e65SFelix Fietkau data->desc[i].interval < data->desc[i].duration) 4349a7022e65SFelix Fietkau continue; 4350a7022e65SFelix Fietkau 4351a7022e65SFelix Fietkau ieee80211_extend_noa_desc(data, tsf, i); 4352a7022e65SFelix Fietkau ret++; 4353a7022e65SFelix Fietkau } 4354a7022e65SFelix Fietkau 4355a7022e65SFelix Fietkau if (ret) 4356a7022e65SFelix Fietkau ieee80211_update_p2p_noa(data, tsf); 4357a7022e65SFelix Fietkau 4358a7022e65SFelix Fietkau return ret; 4359a7022e65SFelix Fietkau } 4360a7022e65SFelix Fietkau EXPORT_SYMBOL(ieee80211_parse_p2p_noa); 4361057d5f4bSThomas Pedersen 4362057d5f4bSThomas Pedersen void ieee80211_recalc_dtim(struct ieee80211_local *local, 4363057d5f4bSThomas Pedersen struct ieee80211_sub_if_data *sdata) 4364057d5f4bSThomas Pedersen { 4365057d5f4bSThomas Pedersen u64 tsf = drv_get_tsf(local, sdata); 4366057d5f4bSThomas Pedersen u64 dtim_count = 0; 4367057d5f4bSThomas Pedersen u16 beacon_int = sdata->vif.bss_conf.beacon_int * 1024; 4368057d5f4bSThomas Pedersen u8 dtim_period = sdata->vif.bss_conf.dtim_period; 4369057d5f4bSThomas Pedersen struct ps_data *ps; 4370057d5f4bSThomas Pedersen u8 bcns_from_dtim; 4371057d5f4bSThomas Pedersen 4372057d5f4bSThomas Pedersen if (tsf == -1ULL || !beacon_int || !dtim_period) 4373057d5f4bSThomas Pedersen return; 4374057d5f4bSThomas Pedersen 4375057d5f4bSThomas Pedersen if (sdata->vif.type == NL80211_IFTYPE_AP || 4376057d5f4bSThomas Pedersen sdata->vif.type == NL80211_IFTYPE_AP_VLAN) { 4377057d5f4bSThomas Pedersen if (!sdata->bss) 4378057d5f4bSThomas Pedersen return; 4379057d5f4bSThomas Pedersen 4380057d5f4bSThomas Pedersen ps = &sdata->bss->ps; 4381057d5f4bSThomas Pedersen } else if (ieee80211_vif_is_mesh(&sdata->vif)) { 4382057d5f4bSThomas Pedersen ps = &sdata->u.mesh.ps; 4383057d5f4bSThomas Pedersen } else { 4384057d5f4bSThomas Pedersen return; 4385057d5f4bSThomas Pedersen } 4386057d5f4bSThomas Pedersen 4387057d5f4bSThomas Pedersen /* 4388057d5f4bSThomas Pedersen * actually finds last dtim_count, mac80211 will update in 4389057d5f4bSThomas Pedersen * __beacon_add_tim(). 4390057d5f4bSThomas Pedersen * dtim_count = dtim_period - (tsf / bcn_int) % dtim_period 4391057d5f4bSThomas Pedersen */ 4392057d5f4bSThomas Pedersen do_div(tsf, beacon_int); 4393057d5f4bSThomas Pedersen bcns_from_dtim = do_div(tsf, dtim_period); 4394057d5f4bSThomas Pedersen /* just had a DTIM */ 4395057d5f4bSThomas Pedersen if (!bcns_from_dtim) 4396057d5f4bSThomas Pedersen dtim_count = 0; 4397057d5f4bSThomas Pedersen else 4398057d5f4bSThomas Pedersen dtim_count = dtim_period - bcns_from_dtim; 4399057d5f4bSThomas Pedersen 4400057d5f4bSThomas Pedersen ps->dtim_count = dtim_count; 4401057d5f4bSThomas Pedersen } 440273de86a3SLuciano Coelho 440371e6195eSMichal Kazior static u8 ieee80211_chanctx_radar_detect(struct ieee80211_local *local, 440471e6195eSMichal Kazior struct ieee80211_chanctx *ctx) 440571e6195eSMichal Kazior { 440671e6195eSMichal Kazior struct ieee80211_sub_if_data *sdata; 440771e6195eSMichal Kazior u8 radar_detect = 0; 440871e6195eSMichal Kazior 440971e6195eSMichal Kazior lockdep_assert_held(&local->chanctx_mtx); 441071e6195eSMichal Kazior 441171e6195eSMichal Kazior if (WARN_ON(ctx->replace_state == IEEE80211_CHANCTX_WILL_BE_REPLACED)) 441271e6195eSMichal Kazior return 0; 441371e6195eSMichal Kazior 441471e6195eSMichal Kazior list_for_each_entry(sdata, &ctx->reserved_vifs, reserved_chanctx_list) 441571e6195eSMichal Kazior if (sdata->reserved_radar_required) 441671e6195eSMichal Kazior radar_detect |= BIT(sdata->reserved_chandef.width); 441771e6195eSMichal Kazior 441871e6195eSMichal Kazior /* 441971e6195eSMichal Kazior * An in-place reservation context should not have any assigned vifs 442071e6195eSMichal Kazior * until it replaces the other context. 442171e6195eSMichal Kazior */ 442271e6195eSMichal Kazior WARN_ON(ctx->replace_state == IEEE80211_CHANCTX_REPLACES_OTHER && 442371e6195eSMichal Kazior !list_empty(&ctx->assigned_vifs)); 442471e6195eSMichal Kazior 442571e6195eSMichal Kazior list_for_each_entry(sdata, &ctx->assigned_vifs, assigned_chanctx_list) 442671e6195eSMichal Kazior if (sdata->radar_required) 442771e6195eSMichal Kazior radar_detect |= BIT(sdata->vif.bss_conf.chandef.width); 442871e6195eSMichal Kazior 442971e6195eSMichal Kazior return radar_detect; 443071e6195eSMichal Kazior } 443171e6195eSMichal Kazior 443273de86a3SLuciano Coelho int ieee80211_check_combinations(struct ieee80211_sub_if_data *sdata, 443373de86a3SLuciano Coelho const struct cfg80211_chan_def *chandef, 443473de86a3SLuciano Coelho enum ieee80211_chanctx_mode chanmode, 443573de86a3SLuciano Coelho u8 radar_detect) 443673de86a3SLuciano Coelho { 443773de86a3SLuciano Coelho struct ieee80211_local *local = sdata->local; 443873de86a3SLuciano Coelho struct ieee80211_sub_if_data *sdata_iter; 443973de86a3SLuciano Coelho enum nl80211_iftype iftype = sdata->wdev.iftype; 444073de86a3SLuciano Coelho struct ieee80211_chanctx *ctx; 444173de86a3SLuciano Coelho int total = 1; 4442e227300cSPurushottam Kushwaha struct iface_combination_params params = { 4443e227300cSPurushottam Kushwaha .radar_detect = radar_detect, 4444e227300cSPurushottam Kushwaha }; 444573de86a3SLuciano Coelho 444673de86a3SLuciano Coelho lockdep_assert_held(&local->chanctx_mtx); 444773de86a3SLuciano Coelho 444873de86a3SLuciano Coelho if (WARN_ON(hweight32(radar_detect) > 1)) 444973de86a3SLuciano Coelho return -EINVAL; 445073de86a3SLuciano Coelho 4451b6a55015SLuciano Coelho if (WARN_ON(chandef && chanmode == IEEE80211_CHANCTX_SHARED && 4452b6a55015SLuciano Coelho !chandef->chan)) 445373de86a3SLuciano Coelho return -EINVAL; 445473de86a3SLuciano Coelho 445573de86a3SLuciano Coelho if (WARN_ON(iftype >= NUM_NL80211_IFTYPES)) 445673de86a3SLuciano Coelho return -EINVAL; 445773de86a3SLuciano Coelho 4458ac668afeSJohannes Berg if (sdata->vif.type == NL80211_IFTYPE_AP || 4459ac668afeSJohannes Berg sdata->vif.type == NL80211_IFTYPE_MESH_POINT) { 4460ac668afeSJohannes Berg /* 4461ac668afeSJohannes Berg * always passing this is harmless, since it'll be the 4462ac668afeSJohannes Berg * same value that cfg80211 finds if it finds the same 4463ac668afeSJohannes Berg * interface ... and that's always allowed 4464ac668afeSJohannes Berg */ 4465ac668afeSJohannes Berg params.new_beacon_int = sdata->vif.bss_conf.beacon_int; 4466ac668afeSJohannes Berg } 4467ac668afeSJohannes Berg 446873de86a3SLuciano Coelho /* Always allow software iftypes */ 4469e6f40511SManikanta Pubbisetty if (cfg80211_iftype_allowed(local->hw.wiphy, iftype, 0, 1)) { 447073de86a3SLuciano Coelho if (radar_detect) 447173de86a3SLuciano Coelho return -EINVAL; 447273de86a3SLuciano Coelho return 0; 447373de86a3SLuciano Coelho } 447473de86a3SLuciano Coelho 4475e227300cSPurushottam Kushwaha if (chandef) 4476e227300cSPurushottam Kushwaha params.num_different_channels = 1; 447773de86a3SLuciano Coelho 447873de86a3SLuciano Coelho if (iftype != NL80211_IFTYPE_UNSPECIFIED) 4479e227300cSPurushottam Kushwaha params.iftype_num[iftype] = 1; 448073de86a3SLuciano Coelho 448173de86a3SLuciano Coelho list_for_each_entry(ctx, &local->chanctx_list, list) { 44825bcae31dSMichal Kazior if (ctx->replace_state == IEEE80211_CHANCTX_WILL_BE_REPLACED) 44835bcae31dSMichal Kazior continue; 4484e227300cSPurushottam Kushwaha params.radar_detect |= 4485e227300cSPurushottam Kushwaha ieee80211_chanctx_radar_detect(local, ctx); 448673de86a3SLuciano Coelho if (ctx->mode == IEEE80211_CHANCTX_EXCLUSIVE) { 4487e227300cSPurushottam Kushwaha params.num_different_channels++; 448873de86a3SLuciano Coelho continue; 448973de86a3SLuciano Coelho } 4490b6a55015SLuciano Coelho if (chandef && chanmode == IEEE80211_CHANCTX_SHARED && 449173de86a3SLuciano Coelho cfg80211_chandef_compatible(chandef, 449273de86a3SLuciano Coelho &ctx->conf.def)) 449373de86a3SLuciano Coelho continue; 4494e227300cSPurushottam Kushwaha params.num_different_channels++; 449573de86a3SLuciano Coelho } 449673de86a3SLuciano Coelho 449773de86a3SLuciano Coelho list_for_each_entry_rcu(sdata_iter, &local->interfaces, list) { 449873de86a3SLuciano Coelho struct wireless_dev *wdev_iter; 449973de86a3SLuciano Coelho 450073de86a3SLuciano Coelho wdev_iter = &sdata_iter->wdev; 450173de86a3SLuciano Coelho 450273de86a3SLuciano Coelho if (sdata_iter == sdata || 45030f611d28SAndrei Otcheretianski !ieee80211_sdata_running(sdata_iter) || 4504e6f40511SManikanta Pubbisetty cfg80211_iftype_allowed(local->hw.wiphy, 4505e6f40511SManikanta Pubbisetty wdev_iter->iftype, 0, 1)) 450673de86a3SLuciano Coelho continue; 450773de86a3SLuciano Coelho 4508e227300cSPurushottam Kushwaha params.iftype_num[wdev_iter->iftype]++; 450973de86a3SLuciano Coelho total++; 451073de86a3SLuciano Coelho } 451173de86a3SLuciano Coelho 4512e227300cSPurushottam Kushwaha if (total == 1 && !params.radar_detect) 451373de86a3SLuciano Coelho return 0; 451473de86a3SLuciano Coelho 4515e227300cSPurushottam Kushwaha return cfg80211_check_combinations(local->hw.wiphy, ¶ms); 451673de86a3SLuciano Coelho } 45176fa001bcSMichal Kazior 45186fa001bcSMichal Kazior static void 45196fa001bcSMichal Kazior ieee80211_iter_max_chans(const struct ieee80211_iface_combination *c, 45206fa001bcSMichal Kazior void *data) 45216fa001bcSMichal Kazior { 45226fa001bcSMichal Kazior u32 *max_num_different_channels = data; 45236fa001bcSMichal Kazior 45246fa001bcSMichal Kazior *max_num_different_channels = max(*max_num_different_channels, 45256fa001bcSMichal Kazior c->num_different_channels); 45266fa001bcSMichal Kazior } 45276fa001bcSMichal Kazior 45286fa001bcSMichal Kazior int ieee80211_max_num_channels(struct ieee80211_local *local) 45296fa001bcSMichal Kazior { 45306fa001bcSMichal Kazior struct ieee80211_sub_if_data *sdata; 45316fa001bcSMichal Kazior struct ieee80211_chanctx *ctx; 45326fa001bcSMichal Kazior u32 max_num_different_channels = 1; 45336fa001bcSMichal Kazior int err; 4534e227300cSPurushottam Kushwaha struct iface_combination_params params = {0}; 45356fa001bcSMichal Kazior 45366fa001bcSMichal Kazior lockdep_assert_held(&local->chanctx_mtx); 45376fa001bcSMichal Kazior 45386fa001bcSMichal Kazior list_for_each_entry(ctx, &local->chanctx_list, list) { 45395bcae31dSMichal Kazior if (ctx->replace_state == IEEE80211_CHANCTX_WILL_BE_REPLACED) 45405bcae31dSMichal Kazior continue; 45415bcae31dSMichal Kazior 4542e227300cSPurushottam Kushwaha params.num_different_channels++; 45436fa001bcSMichal Kazior 4544e227300cSPurushottam Kushwaha params.radar_detect |= 4545e227300cSPurushottam Kushwaha ieee80211_chanctx_radar_detect(local, ctx); 45466fa001bcSMichal Kazior } 45476fa001bcSMichal Kazior 45486fa001bcSMichal Kazior list_for_each_entry_rcu(sdata, &local->interfaces, list) 4549e227300cSPurushottam Kushwaha params.iftype_num[sdata->wdev.iftype]++; 45506fa001bcSMichal Kazior 4551e227300cSPurushottam Kushwaha err = cfg80211_iter_combinations(local->hw.wiphy, ¶ms, 4552e227300cSPurushottam Kushwaha ieee80211_iter_max_chans, 45536fa001bcSMichal Kazior &max_num_different_channels); 45546fa001bcSMichal Kazior if (err < 0) 45556fa001bcSMichal Kazior return err; 45566fa001bcSMichal Kazior 45576fa001bcSMichal Kazior return max_num_different_channels; 45586fa001bcSMichal Kazior } 455940b861a0SArik Nemtsov 45607957c6c8SThomas Pedersen void ieee80211_add_s1g_capab_ie(struct ieee80211_sub_if_data *sdata, 45617957c6c8SThomas Pedersen struct ieee80211_sta_s1g_cap *caps, 45627957c6c8SThomas Pedersen struct sk_buff *skb) 45637957c6c8SThomas Pedersen { 45647957c6c8SThomas Pedersen struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 45657957c6c8SThomas Pedersen struct ieee80211_s1g_cap s1g_capab; 45667957c6c8SThomas Pedersen u8 *pos; 45677957c6c8SThomas Pedersen int i; 45687957c6c8SThomas Pedersen 45697957c6c8SThomas Pedersen if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION)) 45707957c6c8SThomas Pedersen return; 45717957c6c8SThomas Pedersen 45727957c6c8SThomas Pedersen if (!caps->s1g) 45737957c6c8SThomas Pedersen return; 45747957c6c8SThomas Pedersen 45757957c6c8SThomas Pedersen memcpy(s1g_capab.capab_info, caps->cap, sizeof(caps->cap)); 45767957c6c8SThomas Pedersen memcpy(s1g_capab.supp_mcs_nss, caps->nss_mcs, sizeof(caps->nss_mcs)); 45777957c6c8SThomas Pedersen 45787957c6c8SThomas Pedersen /* override the capability info */ 45797957c6c8SThomas Pedersen for (i = 0; i < sizeof(ifmgd->s1g_capa.capab_info); i++) { 45807957c6c8SThomas Pedersen u8 mask = ifmgd->s1g_capa_mask.capab_info[i]; 45817957c6c8SThomas Pedersen 45827957c6c8SThomas Pedersen s1g_capab.capab_info[i] &= ~mask; 45837957c6c8SThomas Pedersen s1g_capab.capab_info[i] |= ifmgd->s1g_capa.capab_info[i] & mask; 45847957c6c8SThomas Pedersen } 45857957c6c8SThomas Pedersen 45867957c6c8SThomas Pedersen /* then MCS and NSS set */ 45877957c6c8SThomas Pedersen for (i = 0; i < sizeof(ifmgd->s1g_capa.supp_mcs_nss); i++) { 45887957c6c8SThomas Pedersen u8 mask = ifmgd->s1g_capa_mask.supp_mcs_nss[i]; 45897957c6c8SThomas Pedersen 45907957c6c8SThomas Pedersen s1g_capab.supp_mcs_nss[i] &= ~mask; 45917957c6c8SThomas Pedersen s1g_capab.supp_mcs_nss[i] |= 45927957c6c8SThomas Pedersen ifmgd->s1g_capa.supp_mcs_nss[i] & mask; 45937957c6c8SThomas Pedersen } 45947957c6c8SThomas Pedersen 45957957c6c8SThomas Pedersen pos = skb_put(skb, 2 + sizeof(s1g_capab)); 45967957c6c8SThomas Pedersen *pos++ = WLAN_EID_S1G_CAPABILITIES; 45977957c6c8SThomas Pedersen *pos++ = sizeof(s1g_capab); 45987957c6c8SThomas Pedersen 45997957c6c8SThomas Pedersen memcpy(pos, &s1g_capab, sizeof(s1g_capab)); 46007957c6c8SThomas Pedersen } 46017957c6c8SThomas Pedersen 46021d00ce80SThomas Pedersen void ieee80211_add_aid_request_ie(struct ieee80211_sub_if_data *sdata, 46031d00ce80SThomas Pedersen struct sk_buff *skb) 46041d00ce80SThomas Pedersen { 46051d00ce80SThomas Pedersen u8 *pos = skb_put(skb, 3); 46061d00ce80SThomas Pedersen 46071d00ce80SThomas Pedersen *pos++ = WLAN_EID_AID_REQUEST; 46081d00ce80SThomas Pedersen *pos++ = 1; 46091d00ce80SThomas Pedersen *pos++ = 0; 46101d00ce80SThomas Pedersen } 46111d00ce80SThomas Pedersen 461240b861a0SArik Nemtsov u8 *ieee80211_add_wmm_info_ie(u8 *buf, u8 qosinfo) 461340b861a0SArik Nemtsov { 461440b861a0SArik Nemtsov *buf++ = WLAN_EID_VENDOR_SPECIFIC; 461540b861a0SArik Nemtsov *buf++ = 7; /* len */ 461640b861a0SArik Nemtsov *buf++ = 0x00; /* Microsoft OUI 00:50:F2 */ 461740b861a0SArik Nemtsov *buf++ = 0x50; 461840b861a0SArik Nemtsov *buf++ = 0xf2; 461940b861a0SArik Nemtsov *buf++ = 2; /* WME */ 462040b861a0SArik Nemtsov *buf++ = 0; /* WME info */ 462140b861a0SArik Nemtsov *buf++ = 1; /* WME ver */ 462240b861a0SArik Nemtsov *buf++ = qosinfo; /* U-APSD no in use */ 462340b861a0SArik Nemtsov 462440b861a0SArik Nemtsov return buf; 462540b861a0SArik Nemtsov } 4626ba8c3d6fSFelix Fietkau 4627f2ac7e30SMichal Kazior void ieee80211_txq_get_depth(struct ieee80211_txq *txq, 4628f2ac7e30SMichal Kazior unsigned long *frame_cnt, 4629f2ac7e30SMichal Kazior unsigned long *byte_cnt) 4630f2ac7e30SMichal Kazior { 4631f2ac7e30SMichal Kazior struct txq_info *txqi = to_txq_info(txq); 4632bb42f2d1SToke Høiland-Jørgensen u32 frag_cnt = 0, frag_bytes = 0; 4633bb42f2d1SToke Høiland-Jørgensen struct sk_buff *skb; 4634bb42f2d1SToke Høiland-Jørgensen 4635bb42f2d1SToke Høiland-Jørgensen skb_queue_walk(&txqi->frags, skb) { 4636bb42f2d1SToke Høiland-Jørgensen frag_cnt++; 4637bb42f2d1SToke Høiland-Jørgensen frag_bytes += skb->len; 4638bb42f2d1SToke Høiland-Jørgensen } 4639f2ac7e30SMichal Kazior 4640f2ac7e30SMichal Kazior if (frame_cnt) 4641bb42f2d1SToke Høiland-Jørgensen *frame_cnt = txqi->tin.backlog_packets + frag_cnt; 4642f2ac7e30SMichal Kazior 4643f2ac7e30SMichal Kazior if (byte_cnt) 4644bb42f2d1SToke Høiland-Jørgensen *byte_cnt = txqi->tin.backlog_bytes + frag_bytes; 4645f2ac7e30SMichal Kazior } 4646f2ac7e30SMichal Kazior EXPORT_SYMBOL(ieee80211_txq_get_depth); 4647f438ceb8SEmmanuel Grumbach 4648f438ceb8SEmmanuel Grumbach const u8 ieee80211_ac_to_qos_mask[IEEE80211_NUM_ACS] = { 4649f438ceb8SEmmanuel Grumbach IEEE80211_WMM_IE_STA_QOSINFO_AC_VO, 4650f438ceb8SEmmanuel Grumbach IEEE80211_WMM_IE_STA_QOSINFO_AC_VI, 4651f438ceb8SEmmanuel Grumbach IEEE80211_WMM_IE_STA_QOSINFO_AC_BE, 4652f438ceb8SEmmanuel Grumbach IEEE80211_WMM_IE_STA_QOSINFO_AC_BK 4653f438ceb8SEmmanuel Grumbach }; 465405d10957SThomas Pedersen 465505d10957SThomas Pedersen u16 ieee80211_encode_usf(int listen_interval) 465605d10957SThomas Pedersen { 465705d10957SThomas Pedersen static const int listen_int_usf[] = { 1, 10, 1000, 10000 }; 465805d10957SThomas Pedersen u16 ui, usf = 0; 465905d10957SThomas Pedersen 466005d10957SThomas Pedersen /* find greatest USF */ 466105d10957SThomas Pedersen while (usf < IEEE80211_MAX_USF) { 466205d10957SThomas Pedersen if (listen_interval % listen_int_usf[usf + 1]) 466305d10957SThomas Pedersen break; 466405d10957SThomas Pedersen usf += 1; 466505d10957SThomas Pedersen } 466605d10957SThomas Pedersen ui = listen_interval / listen_int_usf[usf]; 466705d10957SThomas Pedersen 466805d10957SThomas Pedersen /* error if there is a remainder. Should've been checked by user */ 466905d10957SThomas Pedersen WARN_ON_ONCE(ui > IEEE80211_MAX_UI); 467005d10957SThomas Pedersen listen_interval = FIELD_PREP(LISTEN_INT_USF, usf) | 467105d10957SThomas Pedersen FIELD_PREP(LISTEN_INT_UI, ui); 467205d10957SThomas Pedersen 467305d10957SThomas Pedersen return (u16) listen_interval; 467405d10957SThomas Pedersen } 4675820acc81SIlan Peer 4676820acc81SIlan Peer u8 ieee80211_ie_len_eht_cap(struct ieee80211_sub_if_data *sdata, u8 iftype) 4677820acc81SIlan Peer { 4678820acc81SIlan Peer const struct ieee80211_sta_he_cap *he_cap; 4679820acc81SIlan Peer const struct ieee80211_sta_eht_cap *eht_cap; 4680820acc81SIlan Peer struct ieee80211_supported_band *sband; 4681820acc81SIlan Peer u8 n; 4682820acc81SIlan Peer 4683820acc81SIlan Peer sband = ieee80211_get_sband(sdata); 4684820acc81SIlan Peer if (!sband) 4685820acc81SIlan Peer return 0; 4686820acc81SIlan Peer 4687820acc81SIlan Peer he_cap = ieee80211_get_he_iftype_cap(sband, iftype); 4688820acc81SIlan Peer eht_cap = ieee80211_get_eht_iftype_cap(sband, iftype); 4689820acc81SIlan Peer if (!he_cap || !eht_cap) 4690820acc81SIlan Peer return 0; 4691820acc81SIlan Peer 4692820acc81SIlan Peer n = ieee80211_eht_mcs_nss_size(&he_cap->he_cap_elem, 4693820acc81SIlan Peer &eht_cap->eht_cap_elem); 4694820acc81SIlan Peer return 2 + 1 + 4695820acc81SIlan Peer sizeof(he_cap->he_cap_elem) + n + 4696820acc81SIlan Peer ieee80211_eht_ppe_size(eht_cap->eht_ppe_thres[0], 4697820acc81SIlan Peer eht_cap->eht_cap_elem.phy_cap_info); 4698820acc81SIlan Peer return 0; 4699820acc81SIlan Peer } 4700820acc81SIlan Peer 4701820acc81SIlan Peer u8 *ieee80211_ie_build_eht_cap(u8 *pos, 4702820acc81SIlan Peer const struct ieee80211_sta_he_cap *he_cap, 4703820acc81SIlan Peer const struct ieee80211_sta_eht_cap *eht_cap, 4704820acc81SIlan Peer u8 *end) 4705820acc81SIlan Peer { 4706820acc81SIlan Peer u8 mcs_nss_len, ppet_len; 4707820acc81SIlan Peer u8 ie_len; 4708820acc81SIlan Peer u8 *orig_pos = pos; 4709820acc81SIlan Peer 4710820acc81SIlan Peer /* Make sure we have place for the IE */ 4711820acc81SIlan Peer if (!he_cap || !eht_cap) 4712820acc81SIlan Peer return orig_pos; 4713820acc81SIlan Peer 4714820acc81SIlan Peer mcs_nss_len = ieee80211_eht_mcs_nss_size(&he_cap->he_cap_elem, 4715820acc81SIlan Peer &eht_cap->eht_cap_elem); 4716820acc81SIlan Peer ppet_len = ieee80211_eht_ppe_size(eht_cap->eht_ppe_thres[0], 4717820acc81SIlan Peer eht_cap->eht_cap_elem.phy_cap_info); 4718820acc81SIlan Peer 4719820acc81SIlan Peer ie_len = 2 + 1 + sizeof(eht_cap->eht_cap_elem) + mcs_nss_len + ppet_len; 4720820acc81SIlan Peer if ((end - pos) < ie_len) 4721820acc81SIlan Peer return orig_pos; 4722820acc81SIlan Peer 4723820acc81SIlan Peer *pos++ = WLAN_EID_EXTENSION; 4724820acc81SIlan Peer *pos++ = ie_len - 2; 4725820acc81SIlan Peer *pos++ = WLAN_EID_EXT_EHT_CAPABILITY; 4726820acc81SIlan Peer 4727820acc81SIlan Peer /* Fixed data */ 4728820acc81SIlan Peer memcpy(pos, &eht_cap->eht_cap_elem, sizeof(eht_cap->eht_cap_elem)); 4729820acc81SIlan Peer pos += sizeof(eht_cap->eht_cap_elem); 4730820acc81SIlan Peer 4731820acc81SIlan Peer memcpy(pos, &eht_cap->eht_mcs_nss_supp, mcs_nss_len); 4732820acc81SIlan Peer pos += mcs_nss_len; 4733820acc81SIlan Peer 4734820acc81SIlan Peer if (ppet_len) { 4735820acc81SIlan Peer memcpy(pos, &eht_cap->eht_ppe_thres, ppet_len); 4736820acc81SIlan Peer pos += ppet_len; 4737820acc81SIlan Peer } 4738820acc81SIlan Peer 4739820acc81SIlan Peer return pos; 4740820acc81SIlan Peer } 4741