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 923a5f0afSJohannes 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 304f856373eSFelix Fietkau if (!test_bit(SDATA_STATE_RUNNING, &sdata->state)) 305f856373eSFelix Fietkau goto out; 306f856373eSFelix Fietkau 30721a5d4c3SManikanta Pubbisetty if (sdata->vif.type == NL80211_IFTYPE_AP) 30821a5d4c3SManikanta Pubbisetty ps = &sdata->bss->ps; 30921a5d4c3SManikanta Pubbisetty 31021a5d4c3SManikanta Pubbisetty sdata->vif.txqs_stopped[ac] = false; 31121a5d4c3SManikanta Pubbisetty 31221a5d4c3SManikanta Pubbisetty list_for_each_entry_rcu(sta, &local->sta_list, list) { 31321a5d4c3SManikanta Pubbisetty if (sdata != sta->sdata) 31421a5d4c3SManikanta Pubbisetty continue; 31521a5d4c3SManikanta Pubbisetty 31621a5d4c3SManikanta Pubbisetty for (i = 0; i < ARRAY_SIZE(sta->sta.txq); i++) { 31721a5d4c3SManikanta Pubbisetty struct ieee80211_txq *txq = sta->sta.txq[i]; 31821a5d4c3SManikanta Pubbisetty 319a5ae3264SErik Stromdahl if (!txq) 320a5ae3264SErik Stromdahl continue; 321a5ae3264SErik Stromdahl 32221a5d4c3SManikanta Pubbisetty txqi = to_txq_info(txq); 32321a5d4c3SManikanta Pubbisetty 32421a5d4c3SManikanta Pubbisetty if (ac != txq->ac) 32521a5d4c3SManikanta Pubbisetty continue; 32621a5d4c3SManikanta Pubbisetty 32721a5d4c3SManikanta Pubbisetty if (!test_and_clear_bit(IEEE80211_TXQ_STOP_NETIF_TX, 32821a5d4c3SManikanta Pubbisetty &txqi->flags)) 32921a5d4c3SManikanta Pubbisetty continue; 33021a5d4c3SManikanta Pubbisetty 331d8dec42bSJohannes Berg spin_unlock(&fq->lock); 33221a5d4c3SManikanta Pubbisetty drv_wake_tx_queue(local, txqi); 333d8dec42bSJohannes Berg spin_lock(&fq->lock); 33421a5d4c3SManikanta Pubbisetty } 33521a5d4c3SManikanta Pubbisetty } 33621a5d4c3SManikanta Pubbisetty 33721a5d4c3SManikanta Pubbisetty if (!vif->txq) 33821a5d4c3SManikanta Pubbisetty goto out; 33921a5d4c3SManikanta Pubbisetty 34021a5d4c3SManikanta Pubbisetty txqi = to_txq_info(vif->txq); 34121a5d4c3SManikanta Pubbisetty 34221a5d4c3SManikanta Pubbisetty if (!test_and_clear_bit(IEEE80211_TXQ_STOP_NETIF_TX, &txqi->flags) || 34321a5d4c3SManikanta Pubbisetty (ps && atomic_read(&ps->num_sta_ps)) || ac != vif->txq->ac) 34421a5d4c3SManikanta Pubbisetty goto out; 34521a5d4c3SManikanta Pubbisetty 346d8dec42bSJohannes Berg spin_unlock(&fq->lock); 34721a5d4c3SManikanta Pubbisetty 34821a5d4c3SManikanta Pubbisetty drv_wake_tx_queue(local, txqi); 349d8dec42bSJohannes Berg local_bh_enable(); 35021a5d4c3SManikanta Pubbisetty return; 35121a5d4c3SManikanta Pubbisetty out: 352d8dec42bSJohannes Berg spin_unlock(&fq->lock); 353d8dec42bSJohannes Berg local_bh_enable(); 35421a5d4c3SManikanta Pubbisetty } 35521a5d4c3SManikanta Pubbisetty 356f6c7f03fSEmmanuel Grumbach static void 357f6c7f03fSEmmanuel Grumbach __releases(&local->queue_stop_reason_lock) 358f6c7f03fSEmmanuel Grumbach __acquires(&local->queue_stop_reason_lock) 359f6c7f03fSEmmanuel Grumbach _ieee80211_wake_txqs(struct ieee80211_local *local, unsigned long *flags) 36021a5d4c3SManikanta Pubbisetty { 36121a5d4c3SManikanta Pubbisetty struct ieee80211_sub_if_data *sdata; 36221a5d4c3SManikanta Pubbisetty int n_acs = IEEE80211_NUM_ACS; 36321a5d4c3SManikanta Pubbisetty int i; 36421a5d4c3SManikanta Pubbisetty 36521a5d4c3SManikanta Pubbisetty rcu_read_lock(); 36621a5d4c3SManikanta Pubbisetty 36721a5d4c3SManikanta Pubbisetty if (local->hw.queues < IEEE80211_NUM_ACS) 36821a5d4c3SManikanta Pubbisetty n_acs = 1; 36921a5d4c3SManikanta Pubbisetty 37021a5d4c3SManikanta Pubbisetty for (i = 0; i < local->hw.queues; i++) { 37121a5d4c3SManikanta Pubbisetty if (local->queue_stop_reasons[i]) 37221a5d4c3SManikanta Pubbisetty continue; 37321a5d4c3SManikanta Pubbisetty 374f6c7f03fSEmmanuel Grumbach spin_unlock_irqrestore(&local->queue_stop_reason_lock, *flags); 37521a5d4c3SManikanta Pubbisetty list_for_each_entry_rcu(sdata, &local->interfaces, list) { 37621a5d4c3SManikanta Pubbisetty int ac; 37721a5d4c3SManikanta Pubbisetty 37821a5d4c3SManikanta Pubbisetty for (ac = 0; ac < n_acs; ac++) { 37921a5d4c3SManikanta Pubbisetty int ac_queue = sdata->vif.hw_queue[ac]; 38021a5d4c3SManikanta Pubbisetty 38121a5d4c3SManikanta Pubbisetty if (ac_queue == i || 38221a5d4c3SManikanta Pubbisetty sdata->vif.cab_queue == i) 38321a5d4c3SManikanta Pubbisetty __ieee80211_wake_txqs(sdata, ac); 38421a5d4c3SManikanta Pubbisetty } 38521a5d4c3SManikanta Pubbisetty } 386f6c7f03fSEmmanuel Grumbach spin_lock_irqsave(&local->queue_stop_reason_lock, *flags); 38721a5d4c3SManikanta Pubbisetty } 38821a5d4c3SManikanta Pubbisetty 38921a5d4c3SManikanta Pubbisetty rcu_read_unlock(); 39021a5d4c3SManikanta Pubbisetty } 39121a5d4c3SManikanta Pubbisetty 392da1cad73SAllen Pais void ieee80211_wake_txqs(struct tasklet_struct *t) 393f6c7f03fSEmmanuel Grumbach { 394da1cad73SAllen Pais struct ieee80211_local *local = from_tasklet(local, t, 395da1cad73SAllen Pais wake_txqs_tasklet); 396f6c7f03fSEmmanuel Grumbach unsigned long flags; 397f6c7f03fSEmmanuel Grumbach 398f6c7f03fSEmmanuel Grumbach spin_lock_irqsave(&local->queue_stop_reason_lock, flags); 399f6c7f03fSEmmanuel Grumbach _ieee80211_wake_txqs(local, &flags); 400f6c7f03fSEmmanuel Grumbach spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); 401f6c7f03fSEmmanuel Grumbach } 402f6c7f03fSEmmanuel Grumbach 4033a25a8c8SJohannes Berg void ieee80211_propagate_queue_wake(struct ieee80211_local *local, int queue) 4043a25a8c8SJohannes Berg { 4053a25a8c8SJohannes Berg struct ieee80211_sub_if_data *sdata; 406a6f38ac3SJohannes Berg int n_acs = IEEE80211_NUM_ACS; 407a6f38ac3SJohannes Berg 40880a83cfcSMichal Kazior if (local->ops->wake_tx_queue) 40980a83cfcSMichal Kazior return; 41080a83cfcSMichal Kazior 411a6f38ac3SJohannes Berg if (local->hw.queues < IEEE80211_NUM_ACS) 412a6f38ac3SJohannes Berg n_acs = 1; 4133a25a8c8SJohannes Berg 4143a25a8c8SJohannes Berg list_for_each_entry_rcu(sdata, &local->interfaces, list) { 4153a25a8c8SJohannes Berg int ac; 4163a25a8c8SJohannes Berg 417f142c6b9SJohannes Berg if (!sdata->dev) 418f142c6b9SJohannes Berg continue; 419f142c6b9SJohannes Berg 4203a25a8c8SJohannes Berg if (sdata->vif.cab_queue != IEEE80211_INVAL_HW_QUEUE && 4213a25a8c8SJohannes Berg local->queue_stop_reasons[sdata->vif.cab_queue] != 0) 4223a25a8c8SJohannes Berg continue; 4233a25a8c8SJohannes Berg 424a6f38ac3SJohannes Berg for (ac = 0; ac < n_acs; ac++) { 4253a25a8c8SJohannes Berg int ac_queue = sdata->vif.hw_queue[ac]; 4263a25a8c8SJohannes Berg 4273a25a8c8SJohannes Berg if (ac_queue == queue || 4283a25a8c8SJohannes Berg (sdata->vif.cab_queue == queue && 4293a25a8c8SJohannes Berg local->queue_stop_reasons[ac_queue] == 0 && 4303a25a8c8SJohannes Berg skb_queue_empty(&local->pending[ac_queue]))) 4313a25a8c8SJohannes Berg netif_wake_subqueue(sdata->dev, ac); 4323a25a8c8SJohannes Berg } 4333a25a8c8SJohannes Berg } 4343a25a8c8SJohannes Berg } 4353a25a8c8SJohannes Berg 436ce7c9111SKalle Valo static void __ieee80211_wake_queue(struct ieee80211_hw *hw, int queue, 437cca07b00SLuciano Coelho enum queue_stop_reason reason, 438f6c7f03fSEmmanuel Grumbach bool refcounted, 439f6c7f03fSEmmanuel Grumbach unsigned long *flags) 440c2d1560aSJohannes Berg { 441c2d1560aSJohannes Berg struct ieee80211_local *local = hw_to_local(hw); 442c2d1560aSJohannes Berg 443b5878a2dSJohannes Berg trace_wake_queue(local, queue, reason); 444b5878a2dSJohannes Berg 445e4e72fb4SJohannes Berg if (WARN_ON(queue >= hw->queues)) 44696f5e66eSJohannes Berg return; 44796f5e66eSJohannes Berg 448ada15125SJohannes Berg if (!test_bit(reason, &local->queue_stop_reasons[queue])) 449ada15125SJohannes Berg return; 450ada15125SJohannes Berg 451856142cdSJohannes Berg if (!refcounted) { 452cca07b00SLuciano Coelho local->q_stop_reasons[queue][reason] = 0; 453856142cdSJohannes Berg } else { 454cca07b00SLuciano Coelho local->q_stop_reasons[queue][reason]--; 455856142cdSJohannes Berg if (WARN_ON(local->q_stop_reasons[queue][reason] < 0)) 456856142cdSJohannes Berg local->q_stop_reasons[queue][reason] = 0; 457856142cdSJohannes Berg } 458cca07b00SLuciano Coelho 459cca07b00SLuciano Coelho if (local->q_stop_reasons[queue][reason] == 0) 460ce7c9111SKalle Valo __clear_bit(reason, &local->queue_stop_reasons[queue]); 461ce7c9111SKalle Valo 462ce7c9111SKalle Valo if (local->queue_stop_reasons[queue] != 0) 463ce7c9111SKalle Valo /* someone still has this queue stopped */ 464ce7c9111SKalle Valo return; 465ce7c9111SKalle Valo 4667236fe29SJohannes Berg if (skb_queue_empty(&local->pending[queue])) { 467cf0277e7SJohannes Berg rcu_read_lock(); 4683a25a8c8SJohannes Berg ieee80211_propagate_queue_wake(local, queue); 469cf0277e7SJohannes Berg rcu_read_unlock(); 4707236fe29SJohannes Berg } else 4717236fe29SJohannes Berg tasklet_schedule(&local->tx_pending_tasklet); 47221a5d4c3SManikanta Pubbisetty 473f6c7f03fSEmmanuel Grumbach /* 474f6c7f03fSEmmanuel Grumbach * Calling _ieee80211_wake_txqs here can be a problem because it may 475f6c7f03fSEmmanuel Grumbach * release queue_stop_reason_lock which has been taken by 476f6c7f03fSEmmanuel Grumbach * __ieee80211_wake_queue's caller. It is certainly not very nice to 477f6c7f03fSEmmanuel Grumbach * release someone's lock, but it is fine because all the callers of 478f6c7f03fSEmmanuel Grumbach * __ieee80211_wake_queue call it right before releasing the lock. 479f6c7f03fSEmmanuel Grumbach */ 480f6c7f03fSEmmanuel Grumbach if (local->ops->wake_tx_queue) { 481f6c7f03fSEmmanuel Grumbach if (reason == IEEE80211_QUEUE_STOP_REASON_DRIVER) 48221a5d4c3SManikanta Pubbisetty tasklet_schedule(&local->wake_txqs_tasklet); 483f6c7f03fSEmmanuel Grumbach else 484f6c7f03fSEmmanuel Grumbach _ieee80211_wake_txqs(local, flags); 485f6c7f03fSEmmanuel Grumbach } 486c2d1560aSJohannes Berg } 487ce7c9111SKalle Valo 48896f5e66eSJohannes Berg void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue, 489cca07b00SLuciano Coelho enum queue_stop_reason reason, 490cca07b00SLuciano Coelho bool refcounted) 491ce7c9111SKalle Valo { 492ce7c9111SKalle Valo struct ieee80211_local *local = hw_to_local(hw); 493ce7c9111SKalle Valo unsigned long flags; 494ce7c9111SKalle Valo 495ce7c9111SKalle Valo spin_lock_irqsave(&local->queue_stop_reason_lock, flags); 496f6c7f03fSEmmanuel Grumbach __ieee80211_wake_queue(hw, queue, reason, refcounted, &flags); 497ce7c9111SKalle Valo spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); 498ce7c9111SKalle Valo } 499ce7c9111SKalle Valo 500ce7c9111SKalle Valo void ieee80211_wake_queue(struct ieee80211_hw *hw, int queue) 501ce7c9111SKalle Valo { 502ce7c9111SKalle Valo ieee80211_wake_queue_by_reason(hw, queue, 503cca07b00SLuciano Coelho IEEE80211_QUEUE_STOP_REASON_DRIVER, 504cca07b00SLuciano Coelho false); 505ce7c9111SKalle Valo } 506c2d1560aSJohannes Berg EXPORT_SYMBOL(ieee80211_wake_queue); 507c2d1560aSJohannes Berg 508ce7c9111SKalle Valo static void __ieee80211_stop_queue(struct ieee80211_hw *hw, int queue, 509cca07b00SLuciano Coelho enum queue_stop_reason reason, 510cca07b00SLuciano Coelho bool refcounted) 511c2d1560aSJohannes Berg { 512c2d1560aSJohannes Berg struct ieee80211_local *local = hw_to_local(hw); 513cf0277e7SJohannes Berg struct ieee80211_sub_if_data *sdata; 514a6f38ac3SJohannes Berg int n_acs = IEEE80211_NUM_ACS; 515c2d1560aSJohannes Berg 516b5878a2dSJohannes Berg trace_stop_queue(local, queue, reason); 517b5878a2dSJohannes Berg 518e4e72fb4SJohannes Berg if (WARN_ON(queue >= hw->queues)) 51996f5e66eSJohannes Berg return; 52096f5e66eSJohannes Berg 521cca07b00SLuciano Coelho if (!refcounted) 522cca07b00SLuciano Coelho local->q_stop_reasons[queue][reason] = 1; 523cca07b00SLuciano Coelho else 524cca07b00SLuciano Coelho local->q_stop_reasons[queue][reason]++; 525ada15125SJohannes Berg 526cca07b00SLuciano Coelho if (__test_and_set_bit(reason, &local->queue_stop_reasons[queue])) 527cca07b00SLuciano Coelho return; 528cf0277e7SJohannes Berg 529a6f38ac3SJohannes Berg if (local->hw.queues < IEEE80211_NUM_ACS) 530a6f38ac3SJohannes Berg n_acs = 1; 531a6f38ac3SJohannes Berg 532cf0277e7SJohannes Berg rcu_read_lock(); 5333a25a8c8SJohannes Berg list_for_each_entry_rcu(sdata, &local->interfaces, list) { 5343a25a8c8SJohannes Berg int ac; 5353a25a8c8SJohannes Berg 536f142c6b9SJohannes Berg if (!sdata->dev) 537f142c6b9SJohannes Berg continue; 538f142c6b9SJohannes Berg 539a6f38ac3SJohannes Berg for (ac = 0; ac < n_acs; ac++) { 5403a25a8c8SJohannes Berg if (sdata->vif.hw_queue[ac] == queue || 54121a5d4c3SManikanta Pubbisetty sdata->vif.cab_queue == queue) { 54221a5d4c3SManikanta Pubbisetty if (!local->ops->wake_tx_queue) { 5433a25a8c8SJohannes Berg netif_stop_subqueue(sdata->dev, ac); 54421a5d4c3SManikanta Pubbisetty continue; 54521a5d4c3SManikanta Pubbisetty } 54621a5d4c3SManikanta Pubbisetty spin_lock(&local->fq.lock); 54721a5d4c3SManikanta Pubbisetty sdata->vif.txqs_stopped[ac] = true; 54821a5d4c3SManikanta Pubbisetty spin_unlock(&local->fq.lock); 54921a5d4c3SManikanta Pubbisetty } 5503a25a8c8SJohannes Berg } 5513a25a8c8SJohannes Berg } 552cf0277e7SJohannes Berg rcu_read_unlock(); 553c2d1560aSJohannes Berg } 554ce7c9111SKalle Valo 55596f5e66eSJohannes Berg void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue, 556cca07b00SLuciano Coelho enum queue_stop_reason reason, 557cca07b00SLuciano Coelho bool refcounted) 558ce7c9111SKalle Valo { 559ce7c9111SKalle Valo struct ieee80211_local *local = hw_to_local(hw); 560ce7c9111SKalle Valo unsigned long flags; 561ce7c9111SKalle Valo 562ce7c9111SKalle Valo spin_lock_irqsave(&local->queue_stop_reason_lock, flags); 563cca07b00SLuciano Coelho __ieee80211_stop_queue(hw, queue, reason, refcounted); 564ce7c9111SKalle Valo spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); 565ce7c9111SKalle Valo } 566ce7c9111SKalle Valo 567ce7c9111SKalle Valo void ieee80211_stop_queue(struct ieee80211_hw *hw, int queue) 568ce7c9111SKalle Valo { 569ce7c9111SKalle Valo ieee80211_stop_queue_by_reason(hw, queue, 570cca07b00SLuciano Coelho IEEE80211_QUEUE_STOP_REASON_DRIVER, 571cca07b00SLuciano Coelho false); 572ce7c9111SKalle Valo } 573c2d1560aSJohannes Berg EXPORT_SYMBOL(ieee80211_stop_queue); 574c2d1560aSJohannes Berg 5758f77f384SJohannes Berg void ieee80211_add_pending_skb(struct ieee80211_local *local, 5768f77f384SJohannes Berg struct sk_buff *skb) 5778f77f384SJohannes Berg { 5788f77f384SJohannes Berg struct ieee80211_hw *hw = &local->hw; 5798f77f384SJohannes Berg unsigned long flags; 580a7bc376cSJohannes Berg struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 5813a25a8c8SJohannes Berg int queue = info->hw_queue; 582a7bc376cSJohannes Berg 583a7bc376cSJohannes Berg if (WARN_ON(!info->control.vif)) { 584d4fa14cdSFelix Fietkau ieee80211_free_txskb(&local->hw, skb); 585a7bc376cSJohannes Berg return; 586a7bc376cSJohannes Berg } 5878f77f384SJohannes Berg 5888f77f384SJohannes Berg spin_lock_irqsave(&local->queue_stop_reason_lock, flags); 589cca07b00SLuciano Coelho __ieee80211_stop_queue(hw, queue, IEEE80211_QUEUE_STOP_REASON_SKB_ADD, 590cca07b00SLuciano Coelho false); 5913b8d81e0SJohannes Berg __skb_queue_tail(&local->pending[queue], skb); 592cca07b00SLuciano Coelho __ieee80211_wake_queue(hw, queue, IEEE80211_QUEUE_STOP_REASON_SKB_ADD, 593f6c7f03fSEmmanuel Grumbach false, &flags); 5948f77f384SJohannes Berg spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); 5958f77f384SJohannes Berg } 5968f77f384SJohannes Berg 597e3685e03SJohannes Berg void ieee80211_add_pending_skbs(struct ieee80211_local *local, 598e3685e03SJohannes Berg struct sk_buff_head *skbs) 5998f77f384SJohannes Berg { 6008f77f384SJohannes Berg struct ieee80211_hw *hw = &local->hw; 6018f77f384SJohannes Berg struct sk_buff *skb; 6028f77f384SJohannes Berg unsigned long flags; 603b0b97a8aSJohannes Berg int queue, i; 6048f77f384SJohannes Berg 6058f77f384SJohannes Berg spin_lock_irqsave(&local->queue_stop_reason_lock, flags); 6068f77f384SJohannes Berg while ((skb = skb_dequeue(skbs))) { 607a7bc376cSJohannes Berg struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 608a7bc376cSJohannes Berg 609a7bc376cSJohannes Berg if (WARN_ON(!info->control.vif)) { 610d4fa14cdSFelix Fietkau ieee80211_free_txskb(&local->hw, skb); 611a7bc376cSJohannes Berg continue; 612a7bc376cSJohannes Berg } 613a7bc376cSJohannes Berg 6143a25a8c8SJohannes Berg queue = info->hw_queue; 6154644ae89SJohannes Berg 6164644ae89SJohannes Berg __ieee80211_stop_queue(hw, queue, 617cca07b00SLuciano Coelho IEEE80211_QUEUE_STOP_REASON_SKB_ADD, 618cca07b00SLuciano Coelho false); 6194644ae89SJohannes Berg 6203b8d81e0SJohannes Berg __skb_queue_tail(&local->pending[queue], skb); 6218f77f384SJohannes Berg } 6228f77f384SJohannes Berg 6233b8d81e0SJohannes Berg for (i = 0; i < hw->queues; i++) 6248f77f384SJohannes Berg __ieee80211_wake_queue(hw, i, 625cca07b00SLuciano Coelho IEEE80211_QUEUE_STOP_REASON_SKB_ADD, 626f6c7f03fSEmmanuel Grumbach false, &flags); 6278f77f384SJohannes Berg spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); 6288f77f384SJohannes Berg } 6298f77f384SJohannes Berg 630ce7c9111SKalle Valo void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw, 631445ea4e8SJohannes Berg unsigned long queues, 632cca07b00SLuciano Coelho enum queue_stop_reason reason, 633cca07b00SLuciano Coelho bool refcounted) 634c2d1560aSJohannes Berg { 635ce7c9111SKalle Valo struct ieee80211_local *local = hw_to_local(hw); 636ce7c9111SKalle Valo unsigned long flags; 637c2d1560aSJohannes Berg int i; 638c2d1560aSJohannes Berg 639ce7c9111SKalle Valo spin_lock_irqsave(&local->queue_stop_reason_lock, flags); 640ce7c9111SKalle Valo 641445ea4e8SJohannes Berg for_each_set_bit(i, &queues, hw->queues) 642cca07b00SLuciano Coelho __ieee80211_stop_queue(hw, i, reason, refcounted); 643ce7c9111SKalle Valo 644ce7c9111SKalle Valo spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); 645ce7c9111SKalle Valo } 646ce7c9111SKalle Valo 647ce7c9111SKalle Valo void ieee80211_stop_queues(struct ieee80211_hw *hw) 648ce7c9111SKalle Valo { 649445ea4e8SJohannes Berg ieee80211_stop_queues_by_reason(hw, IEEE80211_MAX_QUEUE_MAP, 650cca07b00SLuciano Coelho IEEE80211_QUEUE_STOP_REASON_DRIVER, 651cca07b00SLuciano Coelho false); 652c2d1560aSJohannes Berg } 653c2d1560aSJohannes Berg EXPORT_SYMBOL(ieee80211_stop_queues); 654c2d1560aSJohannes Berg 65592ab8535STomas Winkler int ieee80211_queue_stopped(struct ieee80211_hw *hw, int queue) 65692ab8535STomas Winkler { 65792ab8535STomas Winkler struct ieee80211_local *local = hw_to_local(hw); 6583b8d81e0SJohannes Berg unsigned long flags; 6593b8d81e0SJohannes Berg int ret; 66096f5e66eSJohannes Berg 661e4e72fb4SJohannes Berg if (WARN_ON(queue >= hw->queues)) 66296f5e66eSJohannes Berg return true; 66396f5e66eSJohannes Berg 6643b8d81e0SJohannes Berg spin_lock_irqsave(&local->queue_stop_reason_lock, flags); 6652419ea14SThomas Pedersen ret = test_bit(IEEE80211_QUEUE_STOP_REASON_DRIVER, 6662419ea14SThomas Pedersen &local->queue_stop_reasons[queue]); 6673b8d81e0SJohannes Berg spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); 6683b8d81e0SJohannes Berg return ret; 66992ab8535STomas Winkler } 67092ab8535STomas Winkler EXPORT_SYMBOL(ieee80211_queue_stopped); 67192ab8535STomas Winkler 672ce7c9111SKalle Valo void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw, 673445ea4e8SJohannes Berg unsigned long queues, 674cca07b00SLuciano Coelho enum queue_stop_reason reason, 675cca07b00SLuciano Coelho bool refcounted) 676c2d1560aSJohannes Berg { 677ce7c9111SKalle Valo struct ieee80211_local *local = hw_to_local(hw); 678ce7c9111SKalle Valo unsigned long flags; 679c2d1560aSJohannes Berg int i; 680c2d1560aSJohannes Berg 681ce7c9111SKalle Valo spin_lock_irqsave(&local->queue_stop_reason_lock, flags); 682ce7c9111SKalle Valo 683445ea4e8SJohannes Berg for_each_set_bit(i, &queues, hw->queues) 684f6c7f03fSEmmanuel Grumbach __ieee80211_wake_queue(hw, i, reason, refcounted, &flags); 685ce7c9111SKalle Valo 686ce7c9111SKalle Valo spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); 687ce7c9111SKalle Valo } 688ce7c9111SKalle Valo 689ce7c9111SKalle Valo void ieee80211_wake_queues(struct ieee80211_hw *hw) 690ce7c9111SKalle Valo { 691445ea4e8SJohannes Berg ieee80211_wake_queues_by_reason(hw, IEEE80211_MAX_QUEUE_MAP, 692cca07b00SLuciano Coelho IEEE80211_QUEUE_STOP_REASON_DRIVER, 693cca07b00SLuciano Coelho false); 694c2d1560aSJohannes Berg } 695c2d1560aSJohannes Berg EXPORT_SYMBOL(ieee80211_wake_queues); 696dabeb344SJohannes Berg 69726da23b6SLuciano Coelho static unsigned int 69826da23b6SLuciano Coelho ieee80211_get_vif_queues(struct ieee80211_local *local, 69939ecc01dSJohannes Berg struct ieee80211_sub_if_data *sdata) 70039ecc01dSJohannes Berg { 70126da23b6SLuciano Coelho unsigned int queues; 70239ecc01dSJohannes Berg 70330686bf7SJohannes Berg if (sdata && ieee80211_hw_check(&local->hw, QUEUE_CONTROL)) { 70439ecc01dSJohannes Berg int ac; 70539ecc01dSJohannes Berg 70639ecc01dSJohannes Berg queues = 0; 70739ecc01dSJohannes Berg 70839ecc01dSJohannes Berg for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) 70939ecc01dSJohannes Berg queues |= BIT(sdata->vif.hw_queue[ac]); 71039ecc01dSJohannes Berg if (sdata->vif.cab_queue != IEEE80211_INVAL_HW_QUEUE) 71139ecc01dSJohannes Berg queues |= BIT(sdata->vif.cab_queue); 71239ecc01dSJohannes Berg } else { 71339ecc01dSJohannes Berg /* all queues */ 71439ecc01dSJohannes Berg queues = BIT(local->hw.queues) - 1; 71539ecc01dSJohannes Berg } 71639ecc01dSJohannes Berg 71726da23b6SLuciano Coelho return queues; 71826da23b6SLuciano Coelho } 71926da23b6SLuciano Coelho 7204f9610d5SLiad Kaufman void __ieee80211_flush_queues(struct ieee80211_local *local, 7214f9610d5SLiad Kaufman struct ieee80211_sub_if_data *sdata, 7223b24f4c6SEmmanuel Grumbach unsigned int queues, bool drop) 72326da23b6SLuciano Coelho { 72426da23b6SLuciano Coelho if (!local->ops->flush) 72526da23b6SLuciano Coelho return; 72626da23b6SLuciano Coelho 7274f9610d5SLiad Kaufman /* 7284f9610d5SLiad Kaufman * If no queue was set, or if the HW doesn't support 7294f9610d5SLiad Kaufman * IEEE80211_HW_QUEUE_CONTROL - flush all queues 7304f9610d5SLiad Kaufman */ 73130686bf7SJohannes Berg if (!queues || !ieee80211_hw_check(&local->hw, QUEUE_CONTROL)) 73226da23b6SLuciano Coelho queues = ieee80211_get_vif_queues(local, sdata); 73326da23b6SLuciano Coelho 73459f48fe2SLuciano Coelho ieee80211_stop_queues_by_reason(&local->hw, queues, 735cca07b00SLuciano Coelho IEEE80211_QUEUE_STOP_REASON_FLUSH, 736cca07b00SLuciano Coelho false); 737445ea4e8SJohannes Berg 7383b24f4c6SEmmanuel Grumbach drv_flush(local, sdata, queues, drop); 739445ea4e8SJohannes Berg 74059f48fe2SLuciano Coelho ieee80211_wake_queues_by_reason(&local->hw, queues, 741cca07b00SLuciano Coelho IEEE80211_QUEUE_STOP_REASON_FLUSH, 742cca07b00SLuciano Coelho false); 74339ecc01dSJohannes Berg } 74439ecc01dSJohannes Berg 7454f9610d5SLiad Kaufman void ieee80211_flush_queues(struct ieee80211_local *local, 7463b24f4c6SEmmanuel Grumbach struct ieee80211_sub_if_data *sdata, bool drop) 7474f9610d5SLiad Kaufman { 7483b24f4c6SEmmanuel Grumbach __ieee80211_flush_queues(local, sdata, 0, drop); 7494f9610d5SLiad Kaufman } 7504f9610d5SLiad Kaufman 75126da23b6SLuciano Coelho void ieee80211_stop_vif_queues(struct ieee80211_local *local, 75226da23b6SLuciano Coelho struct ieee80211_sub_if_data *sdata, 75326da23b6SLuciano Coelho enum queue_stop_reason reason) 75426da23b6SLuciano Coelho { 75526da23b6SLuciano Coelho ieee80211_stop_queues_by_reason(&local->hw, 75626da23b6SLuciano Coelho ieee80211_get_vif_queues(local, sdata), 75726da23b6SLuciano Coelho reason, true); 75826da23b6SLuciano Coelho } 75926da23b6SLuciano Coelho 76026da23b6SLuciano Coelho void ieee80211_wake_vif_queues(struct ieee80211_local *local, 76126da23b6SLuciano Coelho struct ieee80211_sub_if_data *sdata, 76226da23b6SLuciano Coelho enum queue_stop_reason reason) 76326da23b6SLuciano Coelho { 76426da23b6SLuciano Coelho ieee80211_wake_queues_by_reason(&local->hw, 76526da23b6SLuciano Coelho ieee80211_get_vif_queues(local, sdata), 76626da23b6SLuciano Coelho reason, true); 76726da23b6SLuciano Coelho } 76826da23b6SLuciano Coelho 7693384d757SArik Nemtsov static void __iterate_interfaces(struct ieee80211_local *local, 770c7c71066SJohannes Berg u32 iter_flags, 771dabeb344SJohannes Berg void (*iterator)(void *data, u8 *mac, 77232bfd35dSJohannes Berg struct ieee80211_vif *vif), 773dabeb344SJohannes Berg void *data) 774dabeb344SJohannes Berg { 775dabeb344SJohannes Berg struct ieee80211_sub_if_data *sdata; 7763384d757SArik Nemtsov bool active_only = iter_flags & IEEE80211_IFACE_ITER_ACTIVE; 777dabeb344SJohannes Berg 778e38bad47SJohannes Berg list_for_each_entry_rcu(sdata, &local->interfaces, list) { 77951fb61e7SJohannes Berg switch (sdata->vif.type) { 78005c914feSJohannes Berg case NL80211_IFTYPE_MONITOR: 781d8212184SAviya Erenfeld if (!(sdata->u.mntr.flags & MONITOR_FLAG_ACTIVE)) 78231eba5bcSFelix Fietkau continue; 78331eba5bcSFelix Fietkau break; 78405c914feSJohannes Berg case NL80211_IFTYPE_AP_VLAN: 785dabeb344SJohannes Berg continue; 7862ca27bcfSJohannes Berg default: 787dabeb344SJohannes Berg break; 788dabeb344SJohannes Berg } 7898b2c9824SJohannes Berg if (!(iter_flags & IEEE80211_IFACE_ITER_RESUME_ALL) && 7903384d757SArik Nemtsov active_only && !(sdata->flags & IEEE80211_SDATA_IN_DRIVER)) 7918b2c9824SJohannes Berg continue; 792265a0708SBen Greear if ((iter_flags & IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER) && 793265a0708SBen Greear !(sdata->flags & IEEE80211_SDATA_IN_DRIVER)) 794265a0708SBen Greear continue; 7953384d757SArik Nemtsov if (ieee80211_sdata_running(sdata) || !active_only) 79647846c9bSJohannes Berg iterator(data, sdata->vif.addr, 79732bfd35dSJohannes Berg &sdata->vif); 798dabeb344SJohannes Berg } 799e38bad47SJohannes Berg 800c7c71066SJohannes Berg sdata = rcu_dereference_check(local->monitor_sdata, 801c7c71066SJohannes Berg lockdep_is_held(&local->iflist_mtx) || 8026dd23603SJohannes Berg lockdep_is_held(&local->hw.wiphy->mtx)); 8038b2c9824SJohannes Berg if (sdata && 8043384d757SArik Nemtsov (iter_flags & IEEE80211_IFACE_ITER_RESUME_ALL || !active_only || 8058b2c9824SJohannes Berg sdata->flags & IEEE80211_SDATA_IN_DRIVER)) 806685fb72bSJohannes Berg iterator(data, sdata->vif.addr, &sdata->vif); 807c7c71066SJohannes Berg } 808685fb72bSJohannes Berg 8093384d757SArik Nemtsov void ieee80211_iterate_interfaces( 810c7c71066SJohannes Berg struct ieee80211_hw *hw, u32 iter_flags, 811c7c71066SJohannes Berg void (*iterator)(void *data, u8 *mac, 812c7c71066SJohannes Berg struct ieee80211_vif *vif), 813c7c71066SJohannes Berg void *data) 814c7c71066SJohannes Berg { 815c7c71066SJohannes Berg struct ieee80211_local *local = hw_to_local(hw); 816c7c71066SJohannes Berg 817c7c71066SJohannes Berg mutex_lock(&local->iflist_mtx); 8183384d757SArik Nemtsov __iterate_interfaces(local, iter_flags, iterator, data); 819c7c71066SJohannes Berg mutex_unlock(&local->iflist_mtx); 820c7c71066SJohannes Berg } 8213384d757SArik Nemtsov EXPORT_SYMBOL_GPL(ieee80211_iterate_interfaces); 822c7c71066SJohannes Berg 823c7c71066SJohannes Berg void ieee80211_iterate_active_interfaces_atomic( 824c7c71066SJohannes Berg struct ieee80211_hw *hw, u32 iter_flags, 825c7c71066SJohannes Berg void (*iterator)(void *data, u8 *mac, 826c7c71066SJohannes Berg struct ieee80211_vif *vif), 827c7c71066SJohannes Berg void *data) 828c7c71066SJohannes Berg { 829c7c71066SJohannes Berg struct ieee80211_local *local = hw_to_local(hw); 830c7c71066SJohannes Berg 831c7c71066SJohannes Berg rcu_read_lock(); 8323384d757SArik Nemtsov __iterate_interfaces(local, iter_flags | IEEE80211_IFACE_ITER_ACTIVE, 8333384d757SArik Nemtsov iterator, data); 834e38bad47SJohannes Berg rcu_read_unlock(); 835dabeb344SJohannes Berg } 8362f561febSIvo van Doorn EXPORT_SYMBOL_GPL(ieee80211_iterate_active_interfaces_atomic); 83737ffc8daSJohannes Berg 838a05829a7SJohannes Berg void ieee80211_iterate_active_interfaces_mtx( 839c7c71066SJohannes Berg struct ieee80211_hw *hw, u32 iter_flags, 840c7c71066SJohannes Berg void (*iterator)(void *data, u8 *mac, 841c7c71066SJohannes Berg struct ieee80211_vif *vif), 842c7c71066SJohannes Berg void *data) 843c7c71066SJohannes Berg { 844c7c71066SJohannes Berg struct ieee80211_local *local = hw_to_local(hw); 845c7c71066SJohannes Berg 846a05829a7SJohannes Berg lockdep_assert_wiphy(hw->wiphy); 847c7c71066SJohannes Berg 8483384d757SArik Nemtsov __iterate_interfaces(local, iter_flags | IEEE80211_IFACE_ITER_ACTIVE, 8493384d757SArik Nemtsov iterator, data); 850c7c71066SJohannes Berg } 851a05829a7SJohannes Berg EXPORT_SYMBOL_GPL(ieee80211_iterate_active_interfaces_mtx); 852c7c71066SJohannes Berg 8530fc1e049SArik Nemtsov static void __iterate_stations(struct ieee80211_local *local, 8540fc1e049SArik Nemtsov void (*iterator)(void *data, 8550fc1e049SArik Nemtsov struct ieee80211_sta *sta), 8560fc1e049SArik Nemtsov void *data) 8570fc1e049SArik Nemtsov { 8580fc1e049SArik Nemtsov struct sta_info *sta; 8590fc1e049SArik Nemtsov 8600fc1e049SArik Nemtsov list_for_each_entry_rcu(sta, &local->sta_list, list) { 8610fc1e049SArik Nemtsov if (!sta->uploaded) 8620fc1e049SArik Nemtsov continue; 8630fc1e049SArik Nemtsov 8640fc1e049SArik Nemtsov iterator(data, &sta->sta); 8650fc1e049SArik Nemtsov } 8660fc1e049SArik Nemtsov } 8670fc1e049SArik Nemtsov 868acb99b9bSMartin Blumenstingl void ieee80211_iterate_stations(struct ieee80211_hw *hw, 869acb99b9bSMartin Blumenstingl void (*iterator)(void *data, 870acb99b9bSMartin Blumenstingl struct ieee80211_sta *sta), 871acb99b9bSMartin Blumenstingl void *data) 872acb99b9bSMartin Blumenstingl { 873acb99b9bSMartin Blumenstingl struct ieee80211_local *local = hw_to_local(hw); 874acb99b9bSMartin Blumenstingl 875acb99b9bSMartin Blumenstingl mutex_lock(&local->sta_mtx); 876acb99b9bSMartin Blumenstingl __iterate_stations(local, iterator, data); 877acb99b9bSMartin Blumenstingl mutex_unlock(&local->sta_mtx); 878acb99b9bSMartin Blumenstingl } 879acb99b9bSMartin Blumenstingl EXPORT_SYMBOL_GPL(ieee80211_iterate_stations); 880acb99b9bSMartin Blumenstingl 8810fc1e049SArik Nemtsov void ieee80211_iterate_stations_atomic(struct ieee80211_hw *hw, 8820fc1e049SArik Nemtsov void (*iterator)(void *data, 8830fc1e049SArik Nemtsov struct ieee80211_sta *sta), 8840fc1e049SArik Nemtsov void *data) 8850fc1e049SArik Nemtsov { 8860fc1e049SArik Nemtsov struct ieee80211_local *local = hw_to_local(hw); 8870fc1e049SArik Nemtsov 8880fc1e049SArik Nemtsov rcu_read_lock(); 8890fc1e049SArik Nemtsov __iterate_stations(local, iterator, data); 8900fc1e049SArik Nemtsov rcu_read_unlock(); 8910fc1e049SArik Nemtsov } 8920fc1e049SArik Nemtsov EXPORT_SYMBOL_GPL(ieee80211_iterate_stations_atomic); 8930fc1e049SArik Nemtsov 894ad7e718cSJohannes Berg struct ieee80211_vif *wdev_to_ieee80211_vif(struct wireless_dev *wdev) 895ad7e718cSJohannes Berg { 896ad7e718cSJohannes Berg struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 897ad7e718cSJohannes Berg 898ad7e718cSJohannes Berg if (!ieee80211_sdata_running(sdata) || 899ad7e718cSJohannes Berg !(sdata->flags & IEEE80211_SDATA_IN_DRIVER)) 900ad7e718cSJohannes Berg return NULL; 901ad7e718cSJohannes Berg return &sdata->vif; 902ad7e718cSJohannes Berg } 903ad7e718cSJohannes Berg EXPORT_SYMBOL_GPL(wdev_to_ieee80211_vif); 904ad7e718cSJohannes Berg 905dc5a1ad7SEmmanuel Grumbach struct wireless_dev *ieee80211_vif_to_wdev(struct ieee80211_vif *vif) 906dc5a1ad7SEmmanuel Grumbach { 9076513e98eSJohannes Berg if (!vif) 9086513e98eSJohannes Berg return NULL; 9096513e98eSJohannes Berg 910f30386a8SEmmanuel Grumbach return &vif_to_sdata(vif)->wdev; 911dc5a1ad7SEmmanuel Grumbach } 912dc5a1ad7SEmmanuel Grumbach EXPORT_SYMBOL_GPL(ieee80211_vif_to_wdev); 913dc5a1ad7SEmmanuel Grumbach 91442935ecaSLuis R. Rodriguez /* 91542935ecaSLuis R. Rodriguez * Nothing should have been stuffed into the workqueue during 9164afaff17SEmmanuel Grumbach * the suspend->resume cycle. Since we can't check each caller 9174afaff17SEmmanuel Grumbach * of this function if we are already quiescing / suspended, 9184afaff17SEmmanuel Grumbach * check here and don't WARN since this can actually happen when 9194afaff17SEmmanuel Grumbach * the rx path (for example) is racing against __ieee80211_suspend 9204afaff17SEmmanuel Grumbach * and suspending / quiescing was set after the rx path checked 9214afaff17SEmmanuel Grumbach * them. 92242935ecaSLuis R. Rodriguez */ 92342935ecaSLuis R. Rodriguez static bool ieee80211_can_queue_work(struct ieee80211_local *local) 92442935ecaSLuis R. Rodriguez { 9254afaff17SEmmanuel Grumbach if (local->quiescing || (local->suspended && !local->resuming)) { 9264afaff17SEmmanuel Grumbach pr_warn("queueing ieee80211 work while going to suspend\n"); 92742935ecaSLuis R. Rodriguez return false; 9284afaff17SEmmanuel Grumbach } 92942935ecaSLuis R. Rodriguez 93042935ecaSLuis R. Rodriguez return true; 93142935ecaSLuis R. Rodriguez } 93242935ecaSLuis R. Rodriguez 93342935ecaSLuis R. Rodriguez void ieee80211_queue_work(struct ieee80211_hw *hw, struct work_struct *work) 93442935ecaSLuis R. Rodriguez { 93542935ecaSLuis R. Rodriguez struct ieee80211_local *local = hw_to_local(hw); 93642935ecaSLuis R. Rodriguez 93742935ecaSLuis R. Rodriguez if (!ieee80211_can_queue_work(local)) 93842935ecaSLuis R. Rodriguez return; 93942935ecaSLuis R. Rodriguez 94042935ecaSLuis R. Rodriguez queue_work(local->workqueue, work); 94142935ecaSLuis R. Rodriguez } 94242935ecaSLuis R. Rodriguez EXPORT_SYMBOL(ieee80211_queue_work); 94342935ecaSLuis R. Rodriguez 94442935ecaSLuis R. Rodriguez void ieee80211_queue_delayed_work(struct ieee80211_hw *hw, 94542935ecaSLuis R. Rodriguez struct delayed_work *dwork, 94642935ecaSLuis R. Rodriguez unsigned long delay) 94742935ecaSLuis R. Rodriguez { 94842935ecaSLuis R. Rodriguez struct ieee80211_local *local = hw_to_local(hw); 94942935ecaSLuis R. Rodriguez 95042935ecaSLuis R. Rodriguez if (!ieee80211_can_queue_work(local)) 95142935ecaSLuis R. Rodriguez return; 95242935ecaSLuis R. Rodriguez 95342935ecaSLuis R. Rodriguez queue_delayed_work(local->workqueue, dwork, delay); 95442935ecaSLuis R. Rodriguez } 95542935ecaSLuis R. Rodriguez EXPORT_SYMBOL(ieee80211_queue_delayed_work); 95642935ecaSLuis R. Rodriguez 957e4d005b8SJohannes Berg static void ieee80211_parse_extension_element(u32 *crc, 958e4d005b8SJohannes Berg const struct element *elem, 959e4d005b8SJohannes Berg struct ieee802_11_elems *elems) 960e4d005b8SJohannes Berg { 961e4d005b8SJohannes Berg const void *data = elem->data + 1; 962768c0b19SJohannes Berg u8 len; 963768c0b19SJohannes Berg 964768c0b19SJohannes Berg if (!elem->datalen) 965768c0b19SJohannes Berg return; 966768c0b19SJohannes Berg 967768c0b19SJohannes Berg len = elem->datalen - 1; 968e4d005b8SJohannes Berg 969e4d005b8SJohannes Berg switch (elem->data[0]) { 970e4d005b8SJohannes Berg case WLAN_EID_EXT_HE_MU_EDCA: 971652e8363SJohannes Berg if (len >= sizeof(*elems->mu_edca_param_set)) { 972e4d005b8SJohannes Berg elems->mu_edca_param_set = data; 973e4d005b8SJohannes Berg if (crc) 974e4d005b8SJohannes Berg *crc = crc32_be(*crc, (void *)elem, 975e4d005b8SJohannes Berg elem->datalen + 2); 976e4d005b8SJohannes Berg } 977e4d005b8SJohannes Berg break; 978e4d005b8SJohannes Berg case WLAN_EID_EXT_HE_CAPABILITY: 979bd4e4d62SJohannes Berg if (ieee80211_he_capa_size_ok(data, len)) { 980e4d005b8SJohannes Berg elems->he_cap = data; 981e4d005b8SJohannes Berg elems->he_cap_len = len; 982bd4e4d62SJohannes Berg } 983e4d005b8SJohannes Berg break; 984e4d005b8SJohannes Berg case WLAN_EID_EXT_HE_OPERATION: 985e4d005b8SJohannes Berg if (len >= sizeof(*elems->he_operation) && 9860f7e90faSBrian Norris len >= ieee80211_he_oper_size(data) - 1) { 987660d81daSJohannes Berg if (crc) 988660d81daSJohannes Berg *crc = crc32_be(*crc, (void *)elem, 989660d81daSJohannes Berg elem->datalen + 2); 990e4d005b8SJohannes Berg elems->he_operation = data; 991660d81daSJohannes Berg } 992e4d005b8SJohannes Berg break; 993e4d005b8SJohannes Berg case WLAN_EID_EXT_UORA: 994652e8363SJohannes Berg if (len >= 1) 995e4d005b8SJohannes Berg elems->uora_element = data; 996e4d005b8SJohannes Berg break; 997e4d005b8SJohannes Berg case WLAN_EID_EXT_MAX_CHANNEL_SWITCH_TIME: 998e4d005b8SJohannes Berg if (len == 3) 999e4d005b8SJohannes Berg elems->max_channel_switch_time = data; 1000e4d005b8SJohannes Berg break; 1001e4d005b8SJohannes Berg case WLAN_EID_EXT_MULTIPLE_BSSID_CONFIGURATION: 1002652e8363SJohannes Berg if (len >= sizeof(*elems->mbssid_config_ie)) 1003e4d005b8SJohannes Berg elems->mbssid_config_ie = data; 1004e4d005b8SJohannes Berg break; 1005e4d005b8SJohannes Berg case WLAN_EID_EXT_HE_SPR: 1006e4d005b8SJohannes Berg if (len >= sizeof(*elems->he_spr) && 1007e4d005b8SJohannes Berg len >= ieee80211_he_spr_size(data)) 1008e4d005b8SJohannes Berg elems->he_spr = data; 1009e4d005b8SJohannes Berg break; 1010a6cf28e0SRajkumar Manoharan case WLAN_EID_EXT_HE_6GHZ_CAPA: 1011652e8363SJohannes Berg if (len >= sizeof(*elems->he_6ghz_capa)) 1012a6cf28e0SRajkumar Manoharan elems->he_6ghz_capa = data; 1013a6cf28e0SRajkumar Manoharan break; 1014f0e6bea8SIlan Peer case WLAN_EID_EXT_EHT_CAPABILITY: 1015f0e6bea8SIlan Peer if (ieee80211_eht_capa_size_ok(elems->he_cap, 1016f0e6bea8SIlan Peer data, len)) { 1017f0e6bea8SIlan Peer elems->eht_cap = data; 1018f0e6bea8SIlan Peer elems->eht_cap_len = len; 1019f0e6bea8SIlan Peer } 1020f0e6bea8SIlan Peer break; 1021f0e6bea8SIlan Peer case WLAN_EID_EXT_EHT_OPERATION: 1022f0e6bea8SIlan Peer if (ieee80211_eht_oper_size_ok(data, len)) 1023f0e6bea8SIlan Peer elems->eht_operation = data; 1024f0e6bea8SIlan Peer break; 1025e4d005b8SJohannes Berg } 1026e4d005b8SJohannes Berg } 1027e4d005b8SJohannes Berg 102878ac51f8SSara Sharon static u32 1029*fd17bf04SJohannes Berg _ieee802_11_parse_elems_full(struct ieee80211_elems_parse_params *params, 1030dd76986bSJohannes Berg struct ieee802_11_elems *elems, 1031671042a4SSara Sharon const struct element *check_inherit) 1032dd76986bSJohannes Berg { 1033671042a4SSara Sharon const struct element *elem; 1034*fd17bf04SJohannes Berg bool calc_crc = params->filter != 0; 1035fcff4f10SPaul Stewart DECLARE_BITMAP(seen_elems, 256); 1036*fd17bf04SJohannes Berg u32 crc = params->crc; 1037b2e506bfSJohannes Berg const u8 *ie; 1038dd76986bSJohannes Berg 1039fcff4f10SPaul Stewart bitmap_zero(seen_elems, 256); 1040dd76986bSJohannes Berg 1041*fd17bf04SJohannes Berg for_each_element(elem, params->start, params->len) { 1042fcff4f10SPaul Stewart bool elem_parse_failed; 1043c17e28d1SJohannes Berg u8 id = elem->id; 1044c17e28d1SJohannes Berg u8 elen = elem->datalen; 1045c17e28d1SJohannes Berg const u8 *pos = elem->data; 1046fcff4f10SPaul Stewart 1047671042a4SSara Sharon if (check_inherit && 1048671042a4SSara Sharon !cfg80211_is_element_inherited(elem, 1049671042a4SSara Sharon check_inherit)) 1050671042a4SSara Sharon continue; 1051671042a4SSara Sharon 10529690fb16SJohannes Berg switch (id) { 10539690fb16SJohannes Berg case WLAN_EID_SSID: 10549690fb16SJohannes Berg case WLAN_EID_SUPP_RATES: 10559690fb16SJohannes Berg case WLAN_EID_FH_PARAMS: 10569690fb16SJohannes Berg case WLAN_EID_DS_PARAMS: 10579690fb16SJohannes Berg case WLAN_EID_CF_PARAMS: 10589690fb16SJohannes Berg case WLAN_EID_TIM: 10599690fb16SJohannes Berg case WLAN_EID_IBSS_PARAMS: 10609690fb16SJohannes Berg case WLAN_EID_CHALLENGE: 10619690fb16SJohannes Berg case WLAN_EID_RSN: 10629690fb16SJohannes Berg case WLAN_EID_ERP_INFO: 10639690fb16SJohannes Berg case WLAN_EID_EXT_SUPP_RATES: 10649690fb16SJohannes Berg case WLAN_EID_HT_CAPABILITY: 10659690fb16SJohannes Berg case WLAN_EID_HT_OPERATION: 10669690fb16SJohannes Berg case WLAN_EID_VHT_CAPABILITY: 10679690fb16SJohannes Berg case WLAN_EID_VHT_OPERATION: 10689690fb16SJohannes Berg case WLAN_EID_MESH_ID: 10699690fb16SJohannes Berg case WLAN_EID_MESH_CONFIG: 10709690fb16SJohannes Berg case WLAN_EID_PEER_MGMT: 10719690fb16SJohannes Berg case WLAN_EID_PREQ: 10729690fb16SJohannes Berg case WLAN_EID_PREP: 10739690fb16SJohannes Berg case WLAN_EID_PERR: 10749690fb16SJohannes Berg case WLAN_EID_RANN: 10759690fb16SJohannes Berg case WLAN_EID_CHANNEL_SWITCH: 10769690fb16SJohannes Berg case WLAN_EID_EXT_CHANSWITCH_ANN: 10779690fb16SJohannes Berg case WLAN_EID_COUNTRY: 10789690fb16SJohannes Berg case WLAN_EID_PWR_CONSTRAINT: 10799690fb16SJohannes Berg case WLAN_EID_TIMEOUT_INTERVAL: 108085220d71SJohannes Berg case WLAN_EID_SECONDARY_CHANNEL_OFFSET: 1081b2e506bfSJohannes Berg case WLAN_EID_WIDE_BW_CHANNEL_SWITCH: 10828f2535b9SChun-Yeow Yeoh case WLAN_EID_CHAN_SWITCH_PARAM: 10839041c1faSArik Nemtsov case WLAN_EID_EXT_CAPABILITY: 108453837584SArik Nemtsov case WLAN_EID_CHAN_SWITCH_TIMING: 108553837584SArik Nemtsov case WLAN_EID_LINK_ID: 1086e38a017bSAvraham Stern case WLAN_EID_BSS_MAX_IDLE_PERIOD: 1087c0058df7SShaul Triebitz case WLAN_EID_RSNX: 1088cd418ba6SThomas Pedersen case WLAN_EID_S1G_BCN_COMPAT: 1089cd418ba6SThomas Pedersen case WLAN_EID_S1G_CAPABILITIES: 1090cd418ba6SThomas Pedersen case WLAN_EID_S1G_OPERATION: 10911d00ce80SThomas Pedersen case WLAN_EID_AID_RESPONSE: 1092cd418ba6SThomas Pedersen case WLAN_EID_S1G_SHORT_BCN_INTERVAL: 1093b2e506bfSJohannes Berg /* 1094b2e506bfSJohannes Berg * not listing WLAN_EID_CHANNEL_SWITCH_WRAPPER -- it seems possible 1095b2e506bfSJohannes Berg * that if the content gets bigger it might be needed more than once 1096b2e506bfSJohannes Berg */ 10979690fb16SJohannes Berg if (test_bit(id, seen_elems)) { 1098fcff4f10SPaul Stewart elems->parse_error = true; 1099fcff4f10SPaul Stewart continue; 1100fcff4f10SPaul Stewart } 11019690fb16SJohannes Berg break; 11029690fb16SJohannes Berg } 1103dd76986bSJohannes Berg 1104*fd17bf04SJohannes Berg if (calc_crc && id < 64 && (params->filter & (1ULL << id))) 1105dd76986bSJohannes Berg crc = crc32_be(crc, pos - 2, elen + 2); 1106dd76986bSJohannes Berg 1107fcff4f10SPaul Stewart elem_parse_failed = false; 1108fcff4f10SPaul Stewart 1109dd76986bSJohannes Berg switch (id) { 111053837584SArik Nemtsov case WLAN_EID_LINK_ID: 1111652e8363SJohannes Berg if (elen + 2 < sizeof(struct ieee80211_tdls_lnkie)) { 111253837584SArik Nemtsov elem_parse_failed = true; 111353837584SArik Nemtsov break; 111453837584SArik Nemtsov } 111553837584SArik Nemtsov elems->lnk_id = (void *)(pos - 2); 111653837584SArik Nemtsov break; 111753837584SArik Nemtsov case WLAN_EID_CHAN_SWITCH_TIMING: 1118652e8363SJohannes Berg if (elen < sizeof(struct ieee80211_ch_switch_timing)) { 111953837584SArik Nemtsov elem_parse_failed = true; 112053837584SArik Nemtsov break; 112153837584SArik Nemtsov } 112253837584SArik Nemtsov elems->ch_sw_timing = (void *)pos; 112353837584SArik Nemtsov break; 11249041c1faSArik Nemtsov case WLAN_EID_EXT_CAPABILITY: 11259041c1faSArik Nemtsov elems->ext_capab = pos; 11269041c1faSArik Nemtsov elems->ext_capab_len = elen; 11279041c1faSArik Nemtsov break; 1128dd76986bSJohannes Berg case WLAN_EID_SSID: 1129dd76986bSJohannes Berg elems->ssid = pos; 1130dd76986bSJohannes Berg elems->ssid_len = elen; 1131dd76986bSJohannes Berg break; 1132dd76986bSJohannes Berg case WLAN_EID_SUPP_RATES: 1133dd76986bSJohannes Berg elems->supp_rates = pos; 1134dd76986bSJohannes Berg elems->supp_rates_len = elen; 1135dd76986bSJohannes Berg break; 1136dd76986bSJohannes Berg case WLAN_EID_DS_PARAMS: 11371cd8e88eSJohannes Berg if (elen >= 1) 1138dd76986bSJohannes Berg elems->ds_params = pos; 11391cd8e88eSJohannes Berg else 11401cd8e88eSJohannes Berg elem_parse_failed = true; 1141dd76986bSJohannes Berg break; 1142dd76986bSJohannes Berg case WLAN_EID_TIM: 1143dd76986bSJohannes Berg if (elen >= sizeof(struct ieee80211_tim_ie)) { 1144dd76986bSJohannes Berg elems->tim = (void *)pos; 1145dd76986bSJohannes Berg elems->tim_len = elen; 1146fcff4f10SPaul Stewart } else 1147fcff4f10SPaul Stewart elem_parse_failed = true; 1148dd76986bSJohannes Berg break; 1149dd76986bSJohannes Berg case WLAN_EID_VENDOR_SPECIFIC: 1150dd76986bSJohannes Berg if (elen >= 4 && pos[0] == 0x00 && pos[1] == 0x50 && 1151dd76986bSJohannes Berg pos[2] == 0xf2) { 1152dd76986bSJohannes Berg /* Microsoft OUI (00:50:F2) */ 1153dd76986bSJohannes Berg 1154dd76986bSJohannes Berg if (calc_crc) 1155dd76986bSJohannes Berg crc = crc32_be(crc, pos - 2, elen + 2); 1156dd76986bSJohannes Berg 1157441a33baSJohannes Berg if (elen >= 5 && pos[3] == 2) { 1158dd76986bSJohannes Berg /* OUI Type 2 - WMM IE */ 1159dd76986bSJohannes Berg if (pos[4] == 0) { 1160dd76986bSJohannes Berg elems->wmm_info = pos; 1161dd76986bSJohannes Berg elems->wmm_info_len = elen; 1162dd76986bSJohannes Berg } else if (pos[4] == 1) { 1163dd76986bSJohannes Berg elems->wmm_param = pos; 1164dd76986bSJohannes Berg elems->wmm_param_len = elen; 1165dd76986bSJohannes Berg } 1166dd76986bSJohannes Berg } 1167dd76986bSJohannes Berg } 1168dd76986bSJohannes Berg break; 1169dd76986bSJohannes Berg case WLAN_EID_RSN: 1170dd76986bSJohannes Berg elems->rsn = pos; 1171dd76986bSJohannes Berg elems->rsn_len = elen; 1172dd76986bSJohannes Berg break; 1173dd76986bSJohannes Berg case WLAN_EID_ERP_INFO: 11741946bed9SJohannes Berg if (elen >= 1) 1175dd76986bSJohannes Berg elems->erp_info = pos; 11761946bed9SJohannes Berg else 11771946bed9SJohannes Berg elem_parse_failed = true; 1178dd76986bSJohannes Berg break; 1179dd76986bSJohannes Berg case WLAN_EID_EXT_SUPP_RATES: 1180dd76986bSJohannes Berg elems->ext_supp_rates = pos; 1181dd76986bSJohannes Berg elems->ext_supp_rates_len = elen; 1182dd76986bSJohannes Berg break; 1183dd76986bSJohannes Berg case WLAN_EID_HT_CAPABILITY: 1184dd76986bSJohannes Berg if (elen >= sizeof(struct ieee80211_ht_cap)) 1185dd76986bSJohannes Berg elems->ht_cap_elem = (void *)pos; 1186fcff4f10SPaul Stewart else 1187fcff4f10SPaul Stewart elem_parse_failed = true; 1188dd76986bSJohannes Berg break; 1189074d46d1SJohannes Berg case WLAN_EID_HT_OPERATION: 1190074d46d1SJohannes Berg if (elen >= sizeof(struct ieee80211_ht_operation)) 1191074d46d1SJohannes Berg elems->ht_operation = (void *)pos; 1192fcff4f10SPaul Stewart else 1193fcff4f10SPaul Stewart elem_parse_failed = true; 1194dd76986bSJohannes Berg break; 1195818255eaSMahesh Palivela case WLAN_EID_VHT_CAPABILITY: 1196818255eaSMahesh Palivela if (elen >= sizeof(struct ieee80211_vht_cap)) 1197818255eaSMahesh Palivela elems->vht_cap_elem = (void *)pos; 1198818255eaSMahesh Palivela else 1199818255eaSMahesh Palivela elem_parse_failed = true; 1200818255eaSMahesh Palivela break; 1201818255eaSMahesh Palivela case WLAN_EID_VHT_OPERATION: 1202a04564c9SJohannes Berg if (elen >= sizeof(struct ieee80211_vht_operation)) { 1203818255eaSMahesh Palivela elems->vht_operation = (void *)pos; 1204a04564c9SJohannes Berg if (calc_crc) 1205a04564c9SJohannes Berg crc = crc32_be(crc, pos - 2, elen + 2); 1206a04564c9SJohannes Berg break; 1207a04564c9SJohannes Berg } 1208818255eaSMahesh Palivela elem_parse_failed = true; 1209818255eaSMahesh Palivela break; 1210bee7f586SJohannes Berg case WLAN_EID_OPMODE_NOTIF: 1211a04564c9SJohannes Berg if (elen > 0) { 1212bee7f586SJohannes Berg elems->opmode_notif = pos; 1213a04564c9SJohannes Berg if (calc_crc) 1214a04564c9SJohannes Berg crc = crc32_be(crc, pos - 2, elen + 2); 1215a04564c9SJohannes Berg break; 1216a04564c9SJohannes Berg } 1217bee7f586SJohannes Berg elem_parse_failed = true; 1218bee7f586SJohannes Berg break; 1219dd76986bSJohannes Berg case WLAN_EID_MESH_ID: 1220dd76986bSJohannes Berg elems->mesh_id = pos; 1221dd76986bSJohannes Berg elems->mesh_id_len = elen; 1222dd76986bSJohannes Berg break; 1223dd76986bSJohannes Berg case WLAN_EID_MESH_CONFIG: 1224dd76986bSJohannes Berg if (elen >= sizeof(struct ieee80211_meshconf_ie)) 1225dd76986bSJohannes Berg elems->mesh_config = (void *)pos; 1226fcff4f10SPaul Stewart else 1227fcff4f10SPaul Stewart elem_parse_failed = true; 1228dd76986bSJohannes Berg break; 1229dd76986bSJohannes Berg case WLAN_EID_PEER_MGMT: 1230dd76986bSJohannes Berg elems->peering = pos; 1231dd76986bSJohannes Berg elems->peering_len = elen; 1232dd76986bSJohannes Berg break; 12333f52b7e3SMarco Porsch case WLAN_EID_MESH_AWAKE_WINDOW: 12343f52b7e3SMarco Porsch if (elen >= 2) 12353f52b7e3SMarco Porsch elems->awake_window = (void *)pos; 12363f52b7e3SMarco Porsch break; 1237dd76986bSJohannes Berg case WLAN_EID_PREQ: 1238dd76986bSJohannes Berg elems->preq = pos; 1239dd76986bSJohannes Berg elems->preq_len = elen; 1240dd76986bSJohannes Berg break; 1241dd76986bSJohannes Berg case WLAN_EID_PREP: 1242dd76986bSJohannes Berg elems->prep = pos; 1243dd76986bSJohannes Berg elems->prep_len = elen; 1244dd76986bSJohannes Berg break; 1245dd76986bSJohannes Berg case WLAN_EID_PERR: 1246dd76986bSJohannes Berg elems->perr = pos; 1247dd76986bSJohannes Berg elems->perr_len = elen; 1248dd76986bSJohannes Berg break; 1249dd76986bSJohannes Berg case WLAN_EID_RANN: 1250dd76986bSJohannes Berg if (elen >= sizeof(struct ieee80211_rann_ie)) 1251dd76986bSJohannes Berg elems->rann = (void *)pos; 1252fcff4f10SPaul Stewart else 1253fcff4f10SPaul Stewart elem_parse_failed = true; 1254dd76986bSJohannes Berg break; 1255dd76986bSJohannes Berg case WLAN_EID_CHANNEL_SWITCH: 12565bc1420bSJohannes Berg if (elen != sizeof(struct ieee80211_channel_sw_ie)) { 12575bc1420bSJohannes Berg elem_parse_failed = true; 12585bc1420bSJohannes Berg break; 12595bc1420bSJohannes Berg } 12605bc1420bSJohannes Berg elems->ch_switch_ie = (void *)pos; 1261dd76986bSJohannes Berg break; 1262b4f286a1SJohannes Berg case WLAN_EID_EXT_CHANSWITCH_ANN: 1263b4f286a1SJohannes Berg if (elen != sizeof(struct ieee80211_ext_chansw_ie)) { 1264b4f286a1SJohannes Berg elem_parse_failed = true; 1265b4f286a1SJohannes Berg break; 1266b4f286a1SJohannes Berg } 1267b4f286a1SJohannes Berg elems->ext_chansw_ie = (void *)pos; 1268b4f286a1SJohannes Berg break; 126985220d71SJohannes Berg case WLAN_EID_SECONDARY_CHANNEL_OFFSET: 127085220d71SJohannes Berg if (elen != sizeof(struct ieee80211_sec_chan_offs_ie)) { 127185220d71SJohannes Berg elem_parse_failed = true; 127285220d71SJohannes Berg break; 127385220d71SJohannes Berg } 127485220d71SJohannes Berg elems->sec_chan_offs = (void *)pos; 127585220d71SJohannes Berg break; 12768f2535b9SChun-Yeow Yeoh case WLAN_EID_CHAN_SWITCH_PARAM: 1277652e8363SJohannes Berg if (elen < 12788f2535b9SChun-Yeow Yeoh sizeof(*elems->mesh_chansw_params_ie)) { 12798f2535b9SChun-Yeow Yeoh elem_parse_failed = true; 12808f2535b9SChun-Yeow Yeoh break; 12818f2535b9SChun-Yeow Yeoh } 12828f2535b9SChun-Yeow Yeoh elems->mesh_chansw_params_ie = (void *)pos; 12838f2535b9SChun-Yeow Yeoh break; 1284b2e506bfSJohannes Berg case WLAN_EID_WIDE_BW_CHANNEL_SWITCH: 1285*fd17bf04SJohannes Berg if (!params->action || 1286652e8363SJohannes Berg elen < sizeof(*elems->wide_bw_chansw_ie)) { 1287b2e506bfSJohannes Berg elem_parse_failed = true; 1288b2e506bfSJohannes Berg break; 1289b2e506bfSJohannes Berg } 1290b2e506bfSJohannes Berg elems->wide_bw_chansw_ie = (void *)pos; 1291b2e506bfSJohannes Berg break; 1292b2e506bfSJohannes Berg case WLAN_EID_CHANNEL_SWITCH_WRAPPER: 1293*fd17bf04SJohannes Berg if (params->action) { 1294b2e506bfSJohannes Berg elem_parse_failed = true; 1295b2e506bfSJohannes Berg break; 1296b2e506bfSJohannes Berg } 1297b2e506bfSJohannes Berg /* 1298b2e506bfSJohannes Berg * This is a bit tricky, but as we only care about 1299b2e506bfSJohannes Berg * the wide bandwidth channel switch element, so 1300b2e506bfSJohannes Berg * just parse it out manually. 1301b2e506bfSJohannes Berg */ 1302b2e506bfSJohannes Berg ie = cfg80211_find_ie(WLAN_EID_WIDE_BW_CHANNEL_SWITCH, 1303b2e506bfSJohannes Berg pos, elen); 1304b2e506bfSJohannes Berg if (ie) { 1305652e8363SJohannes Berg if (ie[1] >= sizeof(*elems->wide_bw_chansw_ie)) 1306b2e506bfSJohannes Berg elems->wide_bw_chansw_ie = 1307b2e506bfSJohannes Berg (void *)(ie + 2); 1308b2e506bfSJohannes Berg else 1309b2e506bfSJohannes Berg elem_parse_failed = true; 1310b2e506bfSJohannes Berg } 1311b2e506bfSJohannes Berg break; 1312dd76986bSJohannes Berg case WLAN_EID_COUNTRY: 1313dd76986bSJohannes Berg elems->country_elem = pos; 1314dd76986bSJohannes Berg elems->country_elem_len = elen; 1315dd76986bSJohannes Berg break; 1316dd76986bSJohannes Berg case WLAN_EID_PWR_CONSTRAINT: 1317761a48d2SJohannes Berg if (elen != 1) { 1318761a48d2SJohannes Berg elem_parse_failed = true; 1319761a48d2SJohannes Berg break; 1320761a48d2SJohannes Berg } 1321dd76986bSJohannes Berg elems->pwr_constr_elem = pos; 1322dd76986bSJohannes Berg break; 1323c8d65917SSteinar H. Gunderson case WLAN_EID_CISCO_VENDOR_SPECIFIC: 1324c8d65917SSteinar H. Gunderson /* Lots of different options exist, but we only care 1325c8d65917SSteinar H. Gunderson * about the Dynamic Transmit Power Control element. 1326c8d65917SSteinar H. Gunderson * First check for the Cisco OUI, then for the DTPC 1327c8d65917SSteinar H. Gunderson * tag (0x00). 1328c8d65917SSteinar H. Gunderson */ 1329c8d65917SSteinar H. Gunderson if (elen < 4) { 1330c8d65917SSteinar H. Gunderson elem_parse_failed = true; 1331c8d65917SSteinar H. Gunderson break; 1332c8d65917SSteinar H. Gunderson } 1333c8d65917SSteinar H. Gunderson 1334c8d65917SSteinar H. Gunderson if (pos[0] != 0x00 || pos[1] != 0x40 || 1335c8d65917SSteinar H. Gunderson pos[2] != 0x96 || pos[3] != 0x00) 1336c8d65917SSteinar H. Gunderson break; 1337c8d65917SSteinar H. Gunderson 1338c8d65917SSteinar H. Gunderson if (elen != 6) { 1339c8d65917SSteinar H. Gunderson elem_parse_failed = true; 1340c8d65917SSteinar H. Gunderson break; 1341c8d65917SSteinar H. Gunderson } 1342c8d65917SSteinar H. Gunderson 1343c8d65917SSteinar H. Gunderson if (calc_crc) 1344c8d65917SSteinar H. Gunderson crc = crc32_be(crc, pos - 2, elen + 2); 1345c8d65917SSteinar H. Gunderson 1346c8d65917SSteinar H. Gunderson elems->cisco_dtpc_elem = pos; 1347c8d65917SSteinar H. Gunderson break; 13482aa485e1SJohn Crispin case WLAN_EID_ADDBA_EXT: 1349652e8363SJohannes Berg if (elen < sizeof(struct ieee80211_addba_ext_ie)) { 13502aa485e1SJohn Crispin elem_parse_failed = true; 13512aa485e1SJohn Crispin break; 13522aa485e1SJohn Crispin } 13532aa485e1SJohn Crispin elems->addba_ext_ie = (void *)pos; 13542aa485e1SJohn Crispin break; 1355dd76986bSJohannes Berg case WLAN_EID_TIMEOUT_INTERVAL: 135679ba1d89SJohannes Berg if (elen >= sizeof(struct ieee80211_timeout_interval_ie)) 135779ba1d89SJohannes Berg elems->timeout_int = (void *)pos; 135879ba1d89SJohannes Berg else 135979ba1d89SJohannes Berg elem_parse_failed = true; 1360dd76986bSJohannes Berg break; 1361e38a017bSAvraham Stern case WLAN_EID_BSS_MAX_IDLE_PERIOD: 1362e38a017bSAvraham Stern if (elen >= sizeof(*elems->max_idle_period_ie)) 1363e38a017bSAvraham Stern elems->max_idle_period_ie = (void *)pos; 1364e38a017bSAvraham Stern break; 1365c0058df7SShaul Triebitz case WLAN_EID_RSNX: 1366c0058df7SShaul Triebitz elems->rsnx = pos; 1367c0058df7SShaul Triebitz elems->rsnx_len = elen; 1368c0058df7SShaul Triebitz break; 1369b0345850SWen Gong case WLAN_EID_TX_POWER_ENVELOPE: 1370b0345850SWen Gong if (elen < 1 || 1371b0345850SWen Gong elen > sizeof(struct ieee80211_tx_pwr_env)) 1372b0345850SWen Gong break; 1373b0345850SWen Gong 1374b0345850SWen Gong if (elems->tx_pwr_env_num >= ARRAY_SIZE(elems->tx_pwr_env)) 1375b0345850SWen Gong break; 1376b0345850SWen Gong 1377b0345850SWen Gong elems->tx_pwr_env[elems->tx_pwr_env_num] = (void *)pos; 1378b0345850SWen Gong elems->tx_pwr_env_len[elems->tx_pwr_env_num] = elen; 1379b0345850SWen Gong elems->tx_pwr_env_num++; 1380b0345850SWen Gong break; 138141cbb0f5SLuca Coelho case WLAN_EID_EXTENSION: 1382e4d005b8SJohannes Berg ieee80211_parse_extension_element(calc_crc ? 1383e4d005b8SJohannes Berg &crc : NULL, 1384e4d005b8SJohannes Berg elem, elems); 138541cbb0f5SLuca Coelho break; 1386cd418ba6SThomas Pedersen case WLAN_EID_S1G_CAPABILITIES: 1387652e8363SJohannes Berg if (elen >= sizeof(*elems->s1g_capab)) 1388cd418ba6SThomas Pedersen elems->s1g_capab = (void *)pos; 1389cd418ba6SThomas Pedersen else 1390cd418ba6SThomas Pedersen elem_parse_failed = true; 1391cd418ba6SThomas Pedersen break; 1392cd418ba6SThomas Pedersen case WLAN_EID_S1G_OPERATION: 1393cd418ba6SThomas Pedersen if (elen == sizeof(*elems->s1g_oper)) 1394cd418ba6SThomas Pedersen elems->s1g_oper = (void *)pos; 1395cd418ba6SThomas Pedersen else 1396cd418ba6SThomas Pedersen elem_parse_failed = true; 1397cd418ba6SThomas Pedersen break; 1398cd418ba6SThomas Pedersen case WLAN_EID_S1G_BCN_COMPAT: 1399cd418ba6SThomas Pedersen if (elen == sizeof(*elems->s1g_bcn_compat)) 1400cd418ba6SThomas Pedersen elems->s1g_bcn_compat = (void *)pos; 1401cd418ba6SThomas Pedersen else 1402cd418ba6SThomas Pedersen elem_parse_failed = true; 1403cd418ba6SThomas Pedersen break; 14041d00ce80SThomas Pedersen case WLAN_EID_AID_RESPONSE: 14051d00ce80SThomas Pedersen if (elen == sizeof(struct ieee80211_aid_response_ie)) 14061d00ce80SThomas Pedersen elems->aid_resp = (void *)pos; 14071d00ce80SThomas Pedersen else 14081d00ce80SThomas Pedersen elem_parse_failed = true; 14091d00ce80SThomas Pedersen break; 1410dd76986bSJohannes Berg default: 1411dd76986bSJohannes Berg break; 1412dd76986bSJohannes Berg } 1413dd76986bSJohannes Berg 1414fcff4f10SPaul Stewart if (elem_parse_failed) 1415fcff4f10SPaul Stewart elems->parse_error = true; 1416fcff4f10SPaul Stewart else 14175df45690SJohannes Berg __set_bit(id, seen_elems); 1418dd76986bSJohannes Berg } 1419dd76986bSJohannes Berg 1420*fd17bf04SJohannes Berg if (!for_each_element_completed(elem, params->start, params->len)) 1421fcff4f10SPaul Stewart elems->parse_error = true; 1422fcff4f10SPaul Stewart 1423dd76986bSJohannes Berg return crc; 1424dd76986bSJohannes Berg } 1425dd76986bSJohannes Berg 14265023b14cSSara Sharon static size_t ieee802_11_find_bssid_profile(const u8 *start, size_t len, 1427671042a4SSara Sharon struct ieee802_11_elems *elems, 14285d24828dSJohannes Berg const u8 *transmitter_bssid, 14295d24828dSJohannes Berg const u8 *bss_bssid, 14305809a5d5SDan Carpenter u8 *nontransmitted_profile) 1431671042a4SSara Sharon { 1432671042a4SSara Sharon const struct element *elem, *sub; 14335023b14cSSara Sharon size_t profile_len = 0; 14345023b14cSSara Sharon bool found = false; 1435671042a4SSara Sharon 1436671042a4SSara Sharon if (!bss_bssid || !transmitter_bssid) 14375023b14cSSara Sharon return profile_len; 1438671042a4SSara Sharon 1439671042a4SSara Sharon for_each_element_id(elem, WLAN_EID_MULTIPLE_BSSID, start, len) { 1440671042a4SSara Sharon if (elem->datalen < 2) 1441671042a4SSara Sharon continue; 1442671042a4SSara Sharon 1443671042a4SSara Sharon for_each_element(sub, elem->data + 1, elem->datalen - 1) { 1444671042a4SSara Sharon u8 new_bssid[ETH_ALEN]; 1445671042a4SSara Sharon const u8 *index; 1446671042a4SSara Sharon 1447671042a4SSara Sharon if (sub->id != 0 || sub->datalen < 4) { 1448671042a4SSara Sharon /* not a valid BSS profile */ 1449671042a4SSara Sharon continue; 1450671042a4SSara Sharon } 1451671042a4SSara Sharon 1452671042a4SSara Sharon if (sub->data[0] != WLAN_EID_NON_TX_BSSID_CAP || 1453671042a4SSara Sharon sub->data[1] != 2) { 1454671042a4SSara Sharon /* The first element of the 1455671042a4SSara Sharon * Nontransmitted BSSID Profile is not 1456671042a4SSara Sharon * the Nontransmitted BSSID Capability 1457671042a4SSara Sharon * element. 1458671042a4SSara Sharon */ 1459671042a4SSara Sharon continue; 1460671042a4SSara Sharon } 1461671042a4SSara Sharon 14625809a5d5SDan Carpenter memset(nontransmitted_profile, 0, len); 14635023b14cSSara Sharon profile_len = cfg80211_merge_profile(start, len, 14645023b14cSSara Sharon elem, 14655023b14cSSara Sharon sub, 14665023b14cSSara Sharon nontransmitted_profile, 14675023b14cSSara Sharon len); 14685023b14cSSara Sharon 1469671042a4SSara Sharon /* found a Nontransmitted BSSID Profile */ 1470671042a4SSara Sharon index = cfg80211_find_ie(WLAN_EID_MULTI_BSSID_IDX, 14715809a5d5SDan Carpenter nontransmitted_profile, 14725023b14cSSara Sharon profile_len); 1473671042a4SSara Sharon if (!index || index[1] < 1 || index[2] == 0) { 1474671042a4SSara Sharon /* Invalid MBSSID Index element */ 1475671042a4SSara Sharon continue; 1476671042a4SSara Sharon } 1477671042a4SSara Sharon 1478671042a4SSara Sharon cfg80211_gen_new_bssid(transmitter_bssid, 1479671042a4SSara Sharon elem->data[0], 1480671042a4SSara Sharon index[2], 1481671042a4SSara Sharon new_bssid); 1482671042a4SSara Sharon if (ether_addr_equal(new_bssid, bss_bssid)) { 14835023b14cSSara Sharon found = true; 1484671042a4SSara Sharon elems->bssid_index_len = index[1]; 1485671042a4SSara Sharon elems->bssid_index = (void *)&index[2]; 1486671042a4SSara Sharon break; 1487671042a4SSara Sharon } 1488671042a4SSara Sharon } 1489671042a4SSara Sharon } 14905023b14cSSara Sharon 14915023b14cSSara Sharon return found ? profile_len : 0; 1492671042a4SSara Sharon } 1493671042a4SSara Sharon 1494*fd17bf04SJohannes Berg struct ieee802_11_elems * 1495*fd17bf04SJohannes Berg ieee802_11_parse_elems_full(struct ieee80211_elems_parse_params *params) 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; 1505*fd17bf04SJohannes Berg elems->ie_start = params->start; 1506*fd17bf04SJohannes Berg elems->total_len = params->len; 150778ac51f8SSara Sharon 1508*fd17bf04SJohannes Berg nontransmitted_profile = kmalloc(params->len, GFP_ATOMIC); 15095023b14cSSara Sharon if (nontransmitted_profile) { 15105023b14cSSara Sharon nontransmitted_profile_len = 1511*fd17bf04SJohannes Berg ieee802_11_find_bssid_profile(params->start, params->len, 1512*fd17bf04SJohannes Berg elems, 1513*fd17bf04SJohannes Berg params->transmitter_bssid, 1514*fd17bf04SJohannes Berg params->bss_bssid, 15155809a5d5SDan Carpenter nontransmitted_profile); 1516671042a4SSara Sharon non_inherit = 1517671042a4SSara Sharon cfg80211_find_ext_elem(WLAN_EID_EXT_NON_INHERITANCE, 15185023b14cSSara Sharon nontransmitted_profile, 15195023b14cSSara Sharon nontransmitted_profile_len); 15205023b14cSSara Sharon } 1521671042a4SSara Sharon 1522*fd17bf04SJohannes Berg elems->crc = _ieee802_11_parse_elems_full(params, elems, non_inherit); 152378ac51f8SSara Sharon 152478ac51f8SSara Sharon /* Override with nontransmitted profile, if found */ 1525*fd17bf04SJohannes Berg if (nontransmitted_profile_len) { 1526*fd17bf04SJohannes Berg struct ieee80211_elems_parse_params sub = { 1527*fd17bf04SJohannes Berg .start = nontransmitted_profile, 1528*fd17bf04SJohannes Berg .len = nontransmitted_profile_len, 1529*fd17bf04SJohannes Berg .action = params->action, 1530*fd17bf04SJohannes Berg }; 1531*fd17bf04SJohannes Berg 1532*fd17bf04SJohannes Berg _ieee802_11_parse_elems_full(&sub, elems, NULL); 1533*fd17bf04SJohannes Berg } 153478ac51f8SSara Sharon 153578ac51f8SSara Sharon if (elems->tim && !elems->parse_error) { 153678ac51f8SSara Sharon const struct ieee80211_tim_ie *tim_ie = elems->tim; 153778ac51f8SSara Sharon 153878ac51f8SSara Sharon elems->dtim_period = tim_ie->dtim_period; 153978ac51f8SSara Sharon elems->dtim_count = tim_ie->dtim_count; 154078ac51f8SSara Sharon } 154178ac51f8SSara Sharon 154278ac51f8SSara Sharon /* Override DTIM period and count if needed */ 154378ac51f8SSara Sharon if (elems->bssid_index && 154478ac51f8SSara Sharon elems->bssid_index_len >= 154578ac51f8SSara Sharon offsetofend(struct ieee80211_bssid_index, dtim_period)) 154678ac51f8SSara Sharon elems->dtim_period = elems->bssid_index->dtim_period; 154778ac51f8SSara Sharon 154878ac51f8SSara Sharon if (elems->bssid_index && 154978ac51f8SSara Sharon elems->bssid_index_len >= 155078ac51f8SSara Sharon offsetofend(struct ieee80211_bssid_index, dtim_count)) 155178ac51f8SSara Sharon elems->dtim_count = elems->bssid_index->dtim_count; 155278ac51f8SSara Sharon 15535023b14cSSara Sharon kfree(nontransmitted_profile); 15545023b14cSSara Sharon 15555d24828dSJohannes Berg return elems; 155678ac51f8SSara Sharon } 155778ac51f8SSara Sharon 1558e552af05SHaim Dreyfuss void ieee80211_regulatory_limit_wmm_params(struct ieee80211_sub_if_data *sdata, 1559e552af05SHaim Dreyfuss struct ieee80211_tx_queue_params 1560e552af05SHaim Dreyfuss *qparam, int ac) 1561e552af05SHaim Dreyfuss { 1562e552af05SHaim Dreyfuss struct ieee80211_chanctx_conf *chanctx_conf; 1563e552af05SHaim Dreyfuss const struct ieee80211_reg_rule *rrule; 156438cb87eeSStanislaw Gruszka const struct ieee80211_wmm_ac *wmm_ac; 1565e552af05SHaim Dreyfuss u16 center_freq = 0; 1566e552af05SHaim Dreyfuss 1567e552af05SHaim Dreyfuss if (sdata->vif.type != NL80211_IFTYPE_AP && 1568e552af05SHaim Dreyfuss sdata->vif.type != NL80211_IFTYPE_STATION) 1569e552af05SHaim Dreyfuss return; 1570e552af05SHaim Dreyfuss 1571e552af05SHaim Dreyfuss rcu_read_lock(); 1572d0a9123eSJohannes Berg chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf); 1573e552af05SHaim Dreyfuss if (chanctx_conf) 1574e552af05SHaim Dreyfuss center_freq = chanctx_conf->def.chan->center_freq; 1575e552af05SHaim Dreyfuss 1576e552af05SHaim Dreyfuss if (!center_freq) { 1577e552af05SHaim Dreyfuss rcu_read_unlock(); 1578e552af05SHaim Dreyfuss return; 1579e552af05SHaim Dreyfuss } 1580e552af05SHaim Dreyfuss 1581e552af05SHaim Dreyfuss rrule = freq_reg_info(sdata->wdev.wiphy, MHZ_TO_KHZ(center_freq)); 1582e552af05SHaim Dreyfuss 158338cb87eeSStanislaw Gruszka if (IS_ERR_OR_NULL(rrule) || !rrule->has_wmm) { 1584e552af05SHaim Dreyfuss rcu_read_unlock(); 1585e552af05SHaim Dreyfuss return; 1586e552af05SHaim Dreyfuss } 1587e552af05SHaim Dreyfuss 1588e552af05SHaim Dreyfuss if (sdata->vif.type == NL80211_IFTYPE_AP) 158938cb87eeSStanislaw Gruszka wmm_ac = &rrule->wmm_rule.ap[ac]; 1590e552af05SHaim Dreyfuss else 159138cb87eeSStanislaw Gruszka wmm_ac = &rrule->wmm_rule.client[ac]; 1592e552af05SHaim Dreyfuss qparam->cw_min = max_t(u16, qparam->cw_min, wmm_ac->cw_min); 1593e552af05SHaim Dreyfuss qparam->cw_max = max_t(u16, qparam->cw_max, wmm_ac->cw_max); 1594e552af05SHaim Dreyfuss qparam->aifs = max_t(u8, qparam->aifs, wmm_ac->aifsn); 1595abd76d25SDreyfuss, Haim qparam->txop = min_t(u16, qparam->txop, wmm_ac->cot / 32); 1596e552af05SHaim Dreyfuss rcu_read_unlock(); 1597e552af05SHaim Dreyfuss } 1598e552af05SHaim Dreyfuss 1599b3e2130bSJohannes Berg void ieee80211_set_wmm_default(struct ieee80211_link_data *link, 1600cec66283SJohannes Berg bool bss_notify, bool enable_qos) 16015825fe10SJohannes Berg { 1602b3e2130bSJohannes Berg struct ieee80211_sub_if_data *sdata = link->sdata; 16035825fe10SJohannes Berg struct ieee80211_local *local = sdata->local; 16045825fe10SJohannes Berg struct ieee80211_tx_queue_params qparam; 160555de908aSJohannes Berg struct ieee80211_chanctx_conf *chanctx_conf; 160654bcbc69SJohannes Berg int ac; 1607cec66283SJohannes Berg bool use_11b; 1608239281f8SRostislav Lisovy bool is_ocb; /* Use another EDCA parameters if dot11OCBActivated=true */ 1609aa837e1dSJohannes Berg int aCWmin, aCWmax; 16105825fe10SJohannes Berg 16115825fe10SJohannes Berg if (!local->ops->conf_tx) 16125825fe10SJohannes Berg return; 16135825fe10SJohannes Berg 161454bcbc69SJohannes Berg if (local->hw.queues < IEEE80211_NUM_ACS) 161554bcbc69SJohannes Berg return; 161654bcbc69SJohannes Berg 16175825fe10SJohannes Berg memset(&qparam, 0, sizeof(qparam)); 16185825fe10SJohannes Berg 161955de908aSJohannes Berg rcu_read_lock(); 1620b3e2130bSJohannes Berg chanctx_conf = rcu_dereference(link->conf->chanctx_conf); 162155de908aSJohannes Berg use_11b = (chanctx_conf && 162257fbcce3SJohannes Berg chanctx_conf->def.chan->band == NL80211_BAND_2GHZ) && 1623aa837e1dSJohannes Berg !(sdata->flags & IEEE80211_SDATA_OPERATING_GMODE); 162455de908aSJohannes Berg rcu_read_unlock(); 16255825fe10SJohannes Berg 1626239281f8SRostislav Lisovy is_ocb = (sdata->vif.type == NL80211_IFTYPE_OCB); 1627239281f8SRostislav Lisovy 1628aa837e1dSJohannes Berg /* Set defaults according to 802.11-2007 Table 7-37 */ 1629aa837e1dSJohannes Berg aCWmax = 1023; 1630aa837e1dSJohannes Berg if (use_11b) 1631aa837e1dSJohannes Berg aCWmin = 31; 16325825fe10SJohannes Berg else 1633aa837e1dSJohannes Berg aCWmin = 15; 16345825fe10SJohannes Berg 16351f4ffde8SFred Zhou /* Confiure old 802.11b/g medium access rules. */ 16361f4ffde8SFred Zhou qparam.cw_max = aCWmax; 16371f4ffde8SFred Zhou qparam.cw_min = aCWmin; 16381f4ffde8SFred Zhou qparam.txop = 0; 16391f4ffde8SFred Zhou qparam.aifs = 2; 16401f4ffde8SFred Zhou 16411f4ffde8SFred Zhou for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 16421f4ffde8SFred Zhou /* Update if QoS is enabled. */ 1643a8ce8544SStanislaw Gruszka if (enable_qos) { 164454bcbc69SJohannes Berg switch (ac) { 16451d98fb12SJohannes Berg case IEEE80211_AC_BK: 16467ba10a8eSJohannes Berg qparam.cw_max = aCWmax; 16477ba10a8eSJohannes Berg qparam.cw_min = aCWmin; 16485825fe10SJohannes Berg qparam.txop = 0; 1649239281f8SRostislav Lisovy if (is_ocb) 1650239281f8SRostislav Lisovy qparam.aifs = 9; 1651239281f8SRostislav Lisovy else 1652aa837e1dSJohannes Berg qparam.aifs = 7; 1653aa837e1dSJohannes Berg break; 1654a8ce8544SStanislaw Gruszka /* never happens but let's not leave undefined */ 1655a8ce8544SStanislaw Gruszka default: 16561d98fb12SJohannes Berg case IEEE80211_AC_BE: 16577ba10a8eSJohannes Berg qparam.cw_max = aCWmax; 16587ba10a8eSJohannes Berg qparam.cw_min = aCWmin; 1659aa837e1dSJohannes Berg qparam.txop = 0; 1660239281f8SRostislav Lisovy if (is_ocb) 1661239281f8SRostislav Lisovy qparam.aifs = 6; 1662239281f8SRostislav Lisovy else 1663aa837e1dSJohannes Berg qparam.aifs = 3; 1664aa837e1dSJohannes Berg break; 16651d98fb12SJohannes Berg case IEEE80211_AC_VI: 1666aa837e1dSJohannes Berg qparam.cw_max = aCWmin; 1667aa837e1dSJohannes Berg qparam.cw_min = (aCWmin + 1) / 2 - 1; 1668239281f8SRostislav Lisovy if (is_ocb) 1669239281f8SRostislav Lisovy qparam.txop = 0; 1670239281f8SRostislav Lisovy else if (use_11b) 1671aa837e1dSJohannes Berg qparam.txop = 6016/32; 1672aa837e1dSJohannes Berg else 1673aa837e1dSJohannes Berg qparam.txop = 3008/32; 1674239281f8SRostislav Lisovy 1675239281f8SRostislav Lisovy if (is_ocb) 1676239281f8SRostislav Lisovy qparam.aifs = 3; 1677239281f8SRostislav Lisovy else 1678aa837e1dSJohannes Berg qparam.aifs = 2; 1679aa837e1dSJohannes Berg break; 16801d98fb12SJohannes Berg case IEEE80211_AC_VO: 1681aa837e1dSJohannes Berg qparam.cw_max = (aCWmin + 1) / 2 - 1; 1682aa837e1dSJohannes Berg qparam.cw_min = (aCWmin + 1) / 4 - 1; 1683239281f8SRostislav Lisovy if (is_ocb) 1684239281f8SRostislav Lisovy qparam.txop = 0; 1685239281f8SRostislav Lisovy else if (use_11b) 1686aa837e1dSJohannes Berg qparam.txop = 3264/32; 1687aa837e1dSJohannes Berg else 1688aa837e1dSJohannes Berg qparam.txop = 1504/32; 1689aa837e1dSJohannes Berg qparam.aifs = 2; 1690aa837e1dSJohannes Berg break; 1691aa837e1dSJohannes Berg } 1692a8ce8544SStanislaw Gruszka } 1693e552af05SHaim Dreyfuss ieee80211_regulatory_limit_wmm_params(sdata, &qparam, ac); 16945825fe10SJohannes Berg 1695ab13315aSKalle Valo qparam.uapsd = false; 1696ab13315aSKalle Valo 1697b3e2130bSJohannes Berg link->tx_conf[ac] = qparam; 1698b3e2130bSJohannes Berg drv_conf_tx(local, link, ac, &qparam); 1699aa837e1dSJohannes Berg } 1700e1b3ec1aSStanislaw Gruszka 1701f142c6b9SJohannes Berg if (sdata->vif.type != NL80211_IFTYPE_MONITOR && 1702708d50edSAyala Beker sdata->vif.type != NL80211_IFTYPE_P2P_DEVICE && 1703708d50edSAyala Beker sdata->vif.type != NL80211_IFTYPE_NAN) { 1704b3e2130bSJohannes Berg link->conf->qos = enable_qos; 17053abead59SJohannes Berg if (bss_notify) 1706b3e2130bSJohannes Berg ieee80211_link_info_change_notify(sdata, link, 17073abead59SJohannes Berg BSS_CHANGED_QOS); 17085825fe10SJohannes Berg } 1709d9734979SSujith } 1710e50db65cSJohannes Berg 171146900298SJohannes Berg void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata, 1712700e8ea6SJouni Malinen u16 transaction, u16 auth_alg, u16 status, 17134a3cb702SJohannes Berg const u8 *extra, size_t extra_len, const u8 *da, 17141672c0e3SJohannes Berg const u8 *bssid, const u8 *key, u8 key_len, u8 key_idx, 17151672c0e3SJohannes Berg u32 tx_flags) 171646900298SJohannes Berg { 171746900298SJohannes Berg struct ieee80211_local *local = sdata->local; 171846900298SJohannes Berg struct sk_buff *skb; 171946900298SJohannes Berg struct ieee80211_mgmt *mgmt; 1720fffd0934SJohannes Berg int err; 172146900298SJohannes Berg 172215e230abSFred Zhou /* 24 + 6 = header + auth_algo + auth_transaction + status_code */ 1723744462a9SMax Stepanov skb = dev_alloc_skb(local->hw.extra_tx_headroom + IEEE80211_WEP_IV_LEN + 1724744462a9SMax Stepanov 24 + 6 + extra_len + IEEE80211_WEP_ICV_LEN); 1725d15b8459SJoe Perches if (!skb) 172646900298SJohannes Berg return; 1727d15b8459SJoe Perches 1728744462a9SMax Stepanov skb_reserve(skb, local->hw.extra_tx_headroom + IEEE80211_WEP_IV_LEN); 172946900298SJohannes Berg 1730b080db58SJohannes Berg mgmt = skb_put_zero(skb, 24 + 6); 173146900298SJohannes Berg mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | 173246900298SJohannes Berg IEEE80211_STYPE_AUTH); 1733efa6a09dSAntonio Quartulli memcpy(mgmt->da, da, ETH_ALEN); 173447846c9bSJohannes Berg memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN); 173546900298SJohannes Berg memcpy(mgmt->bssid, bssid, ETH_ALEN); 173646900298SJohannes Berg mgmt->u.auth.auth_alg = cpu_to_le16(auth_alg); 173746900298SJohannes Berg mgmt->u.auth.auth_transaction = cpu_to_le16(transaction); 1738700e8ea6SJouni Malinen mgmt->u.auth.status_code = cpu_to_le16(status); 173946900298SJohannes Berg if (extra) 174059ae1d12SJohannes Berg skb_put_data(skb, extra, extra_len); 174146900298SJohannes Berg 1742fffd0934SJohannes Berg if (auth_alg == WLAN_AUTH_SHARED_KEY && transaction == 3) { 1743fffd0934SJohannes Berg mgmt->frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED); 1744fffd0934SJohannes Berg err = ieee80211_wep_encrypt(local, skb, key, key_len, key_idx); 17457d7b0075SJohannes Berg if (WARN_ON(err)) { 17467d7b0075SJohannes Berg kfree_skb(skb); 17477d7b0075SJohannes Berg return; 17487d7b0075SJohannes Berg } 1749fffd0934SJohannes Berg } 1750fffd0934SJohannes Berg 17511672c0e3SJohannes Berg IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT | 17521672c0e3SJohannes Berg tx_flags; 175362ae67beSJohannes Berg ieee80211_tx_skb(sdata, skb); 175446900298SJohannes Berg } 175546900298SJohannes Berg 17566ae16775SAntonio Quartulli void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata, 17574b08d1b6SJohannes Berg const u8 *da, const u8 *bssid, 17584b08d1b6SJohannes Berg u16 stype, u16 reason, 17596ae16775SAntonio Quartulli bool send_frame, u8 *frame_buf) 17606ae16775SAntonio Quartulli { 17616ae16775SAntonio Quartulli struct ieee80211_local *local = sdata->local; 17626ae16775SAntonio Quartulli struct sk_buff *skb; 17636ae16775SAntonio Quartulli struct ieee80211_mgmt *mgmt = (void *)frame_buf; 17646ae16775SAntonio Quartulli 17656ae16775SAntonio Quartulli /* build frame */ 17666ae16775SAntonio Quartulli mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | stype); 17676ae16775SAntonio Quartulli mgmt->duration = 0; /* initialize only */ 17686ae16775SAntonio Quartulli mgmt->seq_ctrl = 0; /* initialize only */ 17694b08d1b6SJohannes Berg memcpy(mgmt->da, da, ETH_ALEN); 17706ae16775SAntonio Quartulli memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN); 17716ae16775SAntonio Quartulli memcpy(mgmt->bssid, bssid, ETH_ALEN); 17726ae16775SAntonio Quartulli /* u.deauth.reason_code == u.disassoc.reason_code */ 17736ae16775SAntonio Quartulli mgmt->u.deauth.reason_code = cpu_to_le16(reason); 17746ae16775SAntonio Quartulli 17756ae16775SAntonio Quartulli if (send_frame) { 17766ae16775SAntonio Quartulli skb = dev_alloc_skb(local->hw.extra_tx_headroom + 17776ae16775SAntonio Quartulli IEEE80211_DEAUTH_FRAME_LEN); 17786ae16775SAntonio Quartulli if (!skb) 17796ae16775SAntonio Quartulli return; 17806ae16775SAntonio Quartulli 17816ae16775SAntonio Quartulli skb_reserve(skb, local->hw.extra_tx_headroom); 17826ae16775SAntonio Quartulli 17836ae16775SAntonio Quartulli /* copy in frame */ 178459ae1d12SJohannes Berg skb_put_data(skb, mgmt, IEEE80211_DEAUTH_FRAME_LEN); 17856ae16775SAntonio Quartulli 17866ae16775SAntonio Quartulli if (sdata->vif.type != NL80211_IFTYPE_STATION || 17876ae16775SAntonio Quartulli !(sdata->u.mgd.flags & IEEE80211_STA_MFP_ENABLED)) 17886ae16775SAntonio Quartulli IEEE80211_SKB_CB(skb)->flags |= 17896ae16775SAntonio Quartulli IEEE80211_TX_INTFL_DONT_ENCRYPT; 17906ae16775SAntonio Quartulli 17916ae16775SAntonio Quartulli ieee80211_tx_skb(sdata, skb); 17926ae16775SAntonio Quartulli } 17936ae16775SAntonio Quartulli } 17946ae16775SAntonio Quartulli 17952ad2274cSIlan Peer static u8 *ieee80211_write_he_6ghz_cap(u8 *pos, __le16 cap, u8 *end) 17962ad2274cSIlan Peer { 17972ad2274cSIlan Peer if ((end - pos) < 5) 17982ad2274cSIlan Peer return pos; 17992ad2274cSIlan Peer 18002ad2274cSIlan Peer *pos++ = WLAN_EID_EXTENSION; 18012ad2274cSIlan Peer *pos++ = 1 + sizeof(cap); 18022ad2274cSIlan Peer *pos++ = WLAN_EID_EXT_HE_6GHZ_CAPA; 18032ad2274cSIlan Peer memcpy(pos, &cap, sizeof(cap)); 18042ad2274cSIlan Peer 18052ad2274cSIlan Peer return pos + 2; 18062ad2274cSIlan Peer } 18072ad2274cSIlan Peer 18082ad2274cSIlan Peer static int ieee80211_build_preq_ies_band(struct ieee80211_sub_if_data *sdata, 1809c56ef672SDavid Spinadel u8 *buffer, size_t buffer_len, 1810c56ef672SDavid Spinadel const u8 *ie, size_t ie_len, 181157fbcce3SJohannes Berg enum nl80211_band band, 1812c56ef672SDavid Spinadel u32 rate_mask, 1813c56ef672SDavid Spinadel struct cfg80211_chan_def *chandef, 181400387f32SJohannes Berg size_t *offset, u32 flags) 1815de95a54bSJohannes Berg { 18162ad2274cSIlan Peer struct ieee80211_local *local = sdata->local; 1817de95a54bSJohannes Berg struct ieee80211_supported_band *sband; 181841cbb0f5SLuca Coelho const struct ieee80211_sta_he_cap *he_cap; 1819820acc81SIlan Peer const struct ieee80211_sta_eht_cap *eht_cap; 1820c604b9f2SJohannes Berg u8 *pos = buffer, *end = buffer + buffer_len; 1821c56ef672SDavid Spinadel size_t noffset; 18228e664fb3SJohannes Berg int supp_rates_len, i; 18238dcb2003SJouni Malinen u8 rates[32]; 18248dcb2003SJouni Malinen int num_rates; 18258dcb2003SJouni Malinen int ext_rates_len; 18262103dec1SSimon Wunderlich int shift; 18272103dec1SSimon Wunderlich u32 rate_flags; 182840a11ca8SJohannes Berg bool have_80mhz = false; 1829de95a54bSJohannes Berg 1830c56ef672SDavid Spinadel *offset = 0; 1831c56ef672SDavid Spinadel 18324d36ec58SJohannes Berg sband = local->hw.wiphy->bands[band]; 1833d811b3d5SArik Nemtsov if (WARN_ON_ONCE(!sband)) 1834d811b3d5SArik Nemtsov return 0; 1835de95a54bSJohannes Berg 18362103dec1SSimon Wunderlich rate_flags = ieee80211_chandef_rate_flags(chandef); 18372103dec1SSimon Wunderlich shift = ieee80211_chandef_get_shift(chandef); 18382103dec1SSimon Wunderlich 18398dcb2003SJouni Malinen num_rates = 0; 18408dcb2003SJouni Malinen for (i = 0; i < sband->n_bitrates; i++) { 18418dcb2003SJouni Malinen if ((BIT(i) & rate_mask) == 0) 18428dcb2003SJouni Malinen continue; /* skip rate */ 18432103dec1SSimon Wunderlich if ((rate_flags & sband->bitrates[i].flags) != rate_flags) 18442103dec1SSimon Wunderlich continue; 18452103dec1SSimon Wunderlich 18462103dec1SSimon Wunderlich rates[num_rates++] = 18472103dec1SSimon Wunderlich (u8) DIV_ROUND_UP(sband->bitrates[i].bitrate, 18482103dec1SSimon Wunderlich (1 << shift) * 5); 18498dcb2003SJouni Malinen } 18508dcb2003SJouni Malinen 18518dcb2003SJouni Malinen supp_rates_len = min_t(int, num_rates, 8); 18528e664fb3SJohannes Berg 1853c604b9f2SJohannes Berg if (end - pos < 2 + supp_rates_len) 1854c604b9f2SJohannes Berg goto out_err; 1855de95a54bSJohannes Berg *pos++ = WLAN_EID_SUPP_RATES; 18568e664fb3SJohannes Berg *pos++ = supp_rates_len; 18578dcb2003SJouni Malinen memcpy(pos, rates, supp_rates_len); 18588dcb2003SJouni Malinen pos += supp_rates_len; 1859de95a54bSJohannes Berg 18608e664fb3SJohannes Berg /* insert "request information" if in custom IEs */ 18618e664fb3SJohannes Berg if (ie && ie_len) { 18628e664fb3SJohannes Berg static const u8 before_extrates[] = { 18638e664fb3SJohannes Berg WLAN_EID_SSID, 18648e664fb3SJohannes Berg WLAN_EID_SUPP_RATES, 18658e664fb3SJohannes Berg WLAN_EID_REQUEST, 18668e664fb3SJohannes Berg }; 18678e664fb3SJohannes Berg noffset = ieee80211_ie_split(ie, ie_len, 18688e664fb3SJohannes Berg before_extrates, 18698e664fb3SJohannes Berg ARRAY_SIZE(before_extrates), 1870c56ef672SDavid Spinadel *offset); 1871c56ef672SDavid Spinadel if (end - pos < noffset - *offset) 1872c604b9f2SJohannes Berg goto out_err; 1873c56ef672SDavid Spinadel memcpy(pos, ie + *offset, noffset - *offset); 1874c56ef672SDavid Spinadel pos += noffset - *offset; 1875c56ef672SDavid Spinadel *offset = noffset; 18768e664fb3SJohannes Berg } 18778e664fb3SJohannes Berg 18788dcb2003SJouni Malinen ext_rates_len = num_rates - supp_rates_len; 18798dcb2003SJouni Malinen if (ext_rates_len > 0) { 1880c604b9f2SJohannes Berg if (end - pos < 2 + ext_rates_len) 1881c604b9f2SJohannes Berg goto out_err; 1882de95a54bSJohannes Berg *pos++ = WLAN_EID_EXT_SUPP_RATES; 18838dcb2003SJouni Malinen *pos++ = ext_rates_len; 18848dcb2003SJouni Malinen memcpy(pos, rates + supp_rates_len, ext_rates_len); 18858dcb2003SJouni Malinen pos += ext_rates_len; 18868e664fb3SJohannes Berg } 18878e664fb3SJohannes Berg 188857fbcce3SJohannes Berg if (chandef->chan && sband->band == NL80211_BAND_2GHZ) { 1889c604b9f2SJohannes Berg if (end - pos < 3) 1890c604b9f2SJohannes Berg goto out_err; 1891651b5225SJouni Malinen *pos++ = WLAN_EID_DS_PARAMS; 1892651b5225SJouni Malinen *pos++ = 1; 18932103dec1SSimon Wunderlich *pos++ = ieee80211_frequency_to_channel( 18942103dec1SSimon Wunderlich chandef->chan->center_freq); 1895651b5225SJouni Malinen } 1896651b5225SJouni Malinen 1897b9771d41SJohannes Berg if (flags & IEEE80211_PROBE_FLAG_MIN_CONTENT) 1898b9771d41SJohannes Berg goto done; 1899b9771d41SJohannes Berg 19008e664fb3SJohannes Berg /* insert custom IEs that go before HT */ 19018e664fb3SJohannes Berg if (ie && ie_len) { 19028e664fb3SJohannes Berg static const u8 before_ht[] = { 1903a7f26d80SJohannes Berg /* 1904a7f26d80SJohannes Berg * no need to list the ones split off already 1905a7f26d80SJohannes Berg * (or generated here) 1906a7f26d80SJohannes Berg */ 19078e664fb3SJohannes Berg WLAN_EID_DS_PARAMS, 19088e664fb3SJohannes Berg WLAN_EID_SUPPORTED_REGULATORY_CLASSES, 19098e664fb3SJohannes Berg }; 19108e664fb3SJohannes Berg noffset = ieee80211_ie_split(ie, ie_len, 19118e664fb3SJohannes Berg before_ht, ARRAY_SIZE(before_ht), 1912c56ef672SDavid Spinadel *offset); 1913c56ef672SDavid Spinadel if (end - pos < noffset - *offset) 1914c604b9f2SJohannes Berg goto out_err; 1915c56ef672SDavid Spinadel memcpy(pos, ie + *offset, noffset - *offset); 1916c56ef672SDavid Spinadel pos += noffset - *offset; 1917c56ef672SDavid Spinadel *offset = noffset; 1918de95a54bSJohannes Berg } 1919de95a54bSJohannes Berg 1920c604b9f2SJohannes Berg if (sband->ht_cap.ht_supported) { 1921c604b9f2SJohannes Berg if (end - pos < 2 + sizeof(struct ieee80211_ht_cap)) 1922c604b9f2SJohannes Berg goto out_err; 1923ef96a842SBen Greear pos = ieee80211_ie_build_ht_cap(pos, &sband->ht_cap, 1924ef96a842SBen Greear sband->ht_cap.cap); 1925c604b9f2SJohannes Berg } 19265ef2d41aSJohannes Berg 19274d952300SJohannes Berg /* insert custom IEs that go before VHT */ 19288e664fb3SJohannes Berg if (ie && ie_len) { 19294d952300SJohannes Berg static const u8 before_vht[] = { 1930a7f26d80SJohannes Berg /* 1931a7f26d80SJohannes Berg * no need to list the ones split off already 1932a7f26d80SJohannes Berg * (or generated here) 1933a7f26d80SJohannes Berg */ 19344d952300SJohannes Berg WLAN_EID_BSS_COEX_2040, 19354d952300SJohannes Berg WLAN_EID_EXT_CAPABILITY, 19364d952300SJohannes Berg WLAN_EID_SSID_LIST, 19374d952300SJohannes Berg WLAN_EID_CHANNEL_USAGE, 19384d952300SJohannes Berg WLAN_EID_INTERWORKING, 1939b44eebeaSLiad Kaufman WLAN_EID_MESH_ID, 1940a7f26d80SJohannes Berg /* 60 GHz (Multi-band, DMG, MMS) can't happen */ 19414d952300SJohannes Berg }; 19424d952300SJohannes Berg noffset = ieee80211_ie_split(ie, ie_len, 19434d952300SJohannes Berg before_vht, ARRAY_SIZE(before_vht), 1944c56ef672SDavid Spinadel *offset); 1945c56ef672SDavid Spinadel if (end - pos < noffset - *offset) 1946c604b9f2SJohannes Berg goto out_err; 1947c56ef672SDavid Spinadel memcpy(pos, ie + *offset, noffset - *offset); 1948c56ef672SDavid Spinadel pos += noffset - *offset; 1949c56ef672SDavid Spinadel *offset = noffset; 1950de95a54bSJohannes Berg } 1951de95a54bSJohannes Berg 195240a11ca8SJohannes Berg /* Check if any channel in this sband supports at least 80 MHz */ 195340a11ca8SJohannes Berg for (i = 0; i < sband->n_channels; i++) { 1954fa44b988SArik Nemtsov if (sband->channels[i].flags & (IEEE80211_CHAN_DISABLED | 1955fa44b988SArik Nemtsov IEEE80211_CHAN_NO_80MHZ)) 1956fa44b988SArik Nemtsov continue; 1957fa44b988SArik Nemtsov 195840a11ca8SJohannes Berg have_80mhz = true; 195940a11ca8SJohannes Berg break; 196040a11ca8SJohannes Berg } 196140a11ca8SJohannes Berg 196240a11ca8SJohannes Berg if (sband->vht_cap.vht_supported && have_80mhz) { 1963c604b9f2SJohannes Berg if (end - pos < 2 + sizeof(struct ieee80211_vht_cap)) 1964c604b9f2SJohannes Berg goto out_err; 1965ba0afa2fSMahesh Palivela pos = ieee80211_ie_build_vht_cap(pos, &sband->vht_cap, 1966ba0afa2fSMahesh Palivela sband->vht_cap.cap); 1967c604b9f2SJohannes Berg } 1968ba0afa2fSMahesh Palivela 196941cbb0f5SLuca Coelho /* insert custom IEs that go before HE */ 197041cbb0f5SLuca Coelho if (ie && ie_len) { 197141cbb0f5SLuca Coelho static const u8 before_he[] = { 197241cbb0f5SLuca Coelho /* 197341cbb0f5SLuca Coelho * no need to list the ones split off before VHT 197441cbb0f5SLuca Coelho * or generated here 197541cbb0f5SLuca Coelho */ 197641cbb0f5SLuca Coelho WLAN_EID_EXTENSION, WLAN_EID_EXT_FILS_REQ_PARAMS, 197741cbb0f5SLuca Coelho WLAN_EID_AP_CSN, 197841cbb0f5SLuca Coelho /* TODO: add 11ah/11aj/11ak elements */ 197941cbb0f5SLuca Coelho }; 198041cbb0f5SLuca Coelho noffset = ieee80211_ie_split(ie, ie_len, 198141cbb0f5SLuca Coelho before_he, ARRAY_SIZE(before_he), 198241cbb0f5SLuca Coelho *offset); 198341cbb0f5SLuca Coelho if (end - pos < noffset - *offset) 198441cbb0f5SLuca Coelho goto out_err; 198541cbb0f5SLuca Coelho memcpy(pos, ie + *offset, noffset - *offset); 198641cbb0f5SLuca Coelho pos += noffset - *offset; 198741cbb0f5SLuca Coelho *offset = noffset; 198841cbb0f5SLuca Coelho } 198941cbb0f5SLuca Coelho 1990bac2fd3dSJohannes Berg he_cap = ieee80211_get_he_iftype_cap(sband, 1991bac2fd3dSJohannes Berg ieee80211_vif_type_p2p(&sdata->vif)); 19920bc47057SJohannes Berg if (he_cap && 19930bc47057SJohannes Berg cfg80211_any_usable_channels(local->hw.wiphy, BIT(sband->band), 19940bc47057SJohannes Berg IEEE80211_CHAN_NO_HE)) { 19951f2c1044SJohannes Berg pos = ieee80211_ie_build_he_cap(0, pos, he_cap, end); 199641cbb0f5SLuca Coelho if (!pos) 199741cbb0f5SLuca Coelho goto out_err; 19987d29bc50SJohannes Berg } 19992ad2274cSIlan Peer 2000820acc81SIlan Peer eht_cap = ieee80211_get_eht_iftype_cap(sband, 2001820acc81SIlan Peer ieee80211_vif_type_p2p(&sdata->vif)); 2002820acc81SIlan Peer 2003820acc81SIlan Peer if (eht_cap && 2004820acc81SIlan Peer cfg80211_any_usable_channels(local->hw.wiphy, BIT(sband->band), 2005820acc81SIlan Peer IEEE80211_CHAN_NO_HE | 2006820acc81SIlan Peer IEEE80211_CHAN_NO_EHT)) { 2007820acc81SIlan Peer pos = ieee80211_ie_build_eht_cap(pos, he_cap, eht_cap, end); 2008820acc81SIlan Peer if (!pos) 2009820acc81SIlan Peer goto out_err; 2010820acc81SIlan Peer } 2011820acc81SIlan Peer 20127d29bc50SJohannes Berg if (cfg80211_any_usable_channels(local->hw.wiphy, 20137d29bc50SJohannes Berg BIT(NL80211_BAND_6GHZ), 20147d29bc50SJohannes Berg IEEE80211_CHAN_NO_HE)) { 20157d29bc50SJohannes Berg struct ieee80211_supported_band *sband6; 20167d29bc50SJohannes Berg 20177d29bc50SJohannes Berg sband6 = local->hw.wiphy->bands[NL80211_BAND_6GHZ]; 20187d29bc50SJohannes Berg he_cap = ieee80211_get_he_iftype_cap(sband6, 20197d29bc50SJohannes Berg ieee80211_vif_type_p2p(&sdata->vif)); 20207d29bc50SJohannes Berg 20217d29bc50SJohannes Berg if (he_cap) { 20222ad2274cSIlan Peer enum nl80211_iftype iftype = 20232ad2274cSIlan Peer ieee80211_vif_type_p2p(&sdata->vif); 20242ad2274cSIlan Peer __le16 cap = ieee80211_get_he_6ghz_capa(sband, iftype); 20252ad2274cSIlan Peer 20262ad2274cSIlan Peer pos = ieee80211_write_he_6ghz_cap(pos, cap, end); 20272ad2274cSIlan Peer } 202841cbb0f5SLuca Coelho } 202941cbb0f5SLuca Coelho 203041cbb0f5SLuca Coelho /* 203141cbb0f5SLuca Coelho * If adding more here, adjust code in main.c 203241cbb0f5SLuca Coelho * that calculates local->scan_ies_len. 203341cbb0f5SLuca Coelho */ 203441cbb0f5SLuca Coelho 2035de95a54bSJohannes Berg return pos - buffer; 2036c604b9f2SJohannes Berg out_err: 2037c604b9f2SJohannes Berg WARN_ONCE(1, "not enough space for preq IEs\n"); 2038b9771d41SJohannes Berg done: 2039c604b9f2SJohannes Berg return pos - buffer; 2040de95a54bSJohannes Berg } 2041de95a54bSJohannes Berg 20422ad2274cSIlan Peer int ieee80211_build_preq_ies(struct ieee80211_sub_if_data *sdata, u8 *buffer, 2043c56ef672SDavid Spinadel size_t buffer_len, 2044c56ef672SDavid Spinadel struct ieee80211_scan_ies *ie_desc, 2045c56ef672SDavid Spinadel const u8 *ie, size_t ie_len, 2046c56ef672SDavid Spinadel u8 bands_used, u32 *rate_masks, 204700387f32SJohannes Berg struct cfg80211_chan_def *chandef, 204800387f32SJohannes Berg u32 flags) 2049c56ef672SDavid Spinadel { 2050c56ef672SDavid Spinadel size_t pos = 0, old_pos = 0, custom_ie_offset = 0; 2051c56ef672SDavid Spinadel int i; 2052c56ef672SDavid Spinadel 2053c56ef672SDavid Spinadel memset(ie_desc, 0, sizeof(*ie_desc)); 2054c56ef672SDavid Spinadel 205557fbcce3SJohannes Berg for (i = 0; i < NUM_NL80211_BANDS; i++) { 2056c56ef672SDavid Spinadel if (bands_used & BIT(i)) { 20572ad2274cSIlan Peer pos += ieee80211_build_preq_ies_band(sdata, 2058c56ef672SDavid Spinadel buffer + pos, 2059c56ef672SDavid Spinadel buffer_len - pos, 2060c56ef672SDavid Spinadel ie, ie_len, i, 2061c56ef672SDavid Spinadel rate_masks[i], 2062c56ef672SDavid Spinadel chandef, 206300387f32SJohannes Berg &custom_ie_offset, 206400387f32SJohannes Berg flags); 2065c56ef672SDavid Spinadel ie_desc->ies[i] = buffer + old_pos; 2066c56ef672SDavid Spinadel ie_desc->len[i] = pos - old_pos; 2067c56ef672SDavid Spinadel old_pos = pos; 2068c56ef672SDavid Spinadel } 2069c56ef672SDavid Spinadel } 2070c56ef672SDavid Spinadel 2071c56ef672SDavid Spinadel /* add any remaining custom IEs */ 2072c56ef672SDavid Spinadel if (ie && ie_len) { 2073c56ef672SDavid Spinadel if (WARN_ONCE(buffer_len - pos < ie_len - custom_ie_offset, 2074c56ef672SDavid Spinadel "not enough space for preq custom IEs\n")) 2075c56ef672SDavid Spinadel return pos; 2076c56ef672SDavid Spinadel memcpy(buffer + pos, ie + custom_ie_offset, 2077c56ef672SDavid Spinadel ie_len - custom_ie_offset); 2078c56ef672SDavid Spinadel ie_desc->common_ies = buffer + pos; 2079c56ef672SDavid Spinadel ie_desc->common_ie_len = ie_len - custom_ie_offset; 2080c56ef672SDavid Spinadel pos += ie_len - custom_ie_offset; 2081c56ef672SDavid Spinadel } 2082c56ef672SDavid Spinadel 2083c56ef672SDavid Spinadel return pos; 2084c56ef672SDavid Spinadel }; 2085c56ef672SDavid Spinadel 2086a619a4c0SJuuso Oikarinen struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata, 2087a344d677SJohannes Berg const u8 *src, const u8 *dst, 2088a344d677SJohannes Berg u32 ratemask, 20896b77863bSJohannes Berg struct ieee80211_channel *chan, 2090de95a54bSJohannes Berg const u8 *ssid, size_t ssid_len, 2091a806c558SPaul Stewart const u8 *ie, size_t ie_len, 209200387f32SJohannes Berg u32 flags) 209346900298SJohannes Berg { 209446900298SJohannes Berg struct ieee80211_local *local = sdata->local; 20952103dec1SSimon Wunderlich struct cfg80211_chan_def chandef; 209646900298SJohannes Berg struct sk_buff *skb; 209746900298SJohannes Berg struct ieee80211_mgmt *mgmt; 2098b9a9ada1SJohannes Berg int ies_len; 209957fbcce3SJohannes Berg u32 rate_masks[NUM_NL80211_BANDS] = {}; 2100c56ef672SDavid Spinadel struct ieee80211_scan_ies dummy_ie_desc; 210146900298SJohannes Berg 2102a806c558SPaul Stewart /* 2103a806c558SPaul Stewart * Do not send DS Channel parameter for directed probe requests 2104a806c558SPaul Stewart * in order to maximize the chance that we get a response. Some 2105a806c558SPaul Stewart * badly-behaved APs don't respond when this parameter is included. 2106a806c558SPaul Stewart */ 21072103dec1SSimon Wunderlich chandef.width = sdata->vif.bss_conf.chandef.width; 210800387f32SJohannes Berg if (flags & IEEE80211_PROBE_FLAG_DIRECTED) 21092103dec1SSimon Wunderlich chandef.chan = NULL; 2110a806c558SPaul Stewart else 21112103dec1SSimon Wunderlich chandef.chan = chan; 2112651b5225SJouni Malinen 2113a344d677SJohannes Berg skb = ieee80211_probereq_get(&local->hw, src, ssid, ssid_len, 2114f22d9813SIlan Peer local->scan_ies_len + ie_len); 21155b2bbf75SJohannes Berg if (!skb) 2116b9a9ada1SJohannes Berg return NULL; 2117b9a9ada1SJohannes Berg 2118c56ef672SDavid Spinadel rate_masks[chan->band] = ratemask; 21192ad2274cSIlan Peer ies_len = ieee80211_build_preq_ies(sdata, skb_tail_pointer(skb), 2120c56ef672SDavid Spinadel skb_tailroom(skb), &dummy_ie_desc, 2121c56ef672SDavid Spinadel ie, ie_len, BIT(chan->band), 212200387f32SJohannes Berg rate_masks, &chandef, flags); 2123b9a9ada1SJohannes Berg skb_put(skb, ies_len); 21247c12ce8bSKalle Valo 212546900298SJohannes Berg if (dst) { 21267c12ce8bSKalle Valo mgmt = (struct ieee80211_mgmt *) skb->data; 212746900298SJohannes Berg memcpy(mgmt->da, dst, ETH_ALEN); 212846900298SJohannes Berg memcpy(mgmt->bssid, dst, ETH_ALEN); 212946900298SJohannes Berg } 213046900298SJohannes Berg 213162ae67beSJohannes Berg IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT; 21325b2bbf75SJohannes Berg 2133a619a4c0SJuuso Oikarinen return skb; 2134a619a4c0SJuuso Oikarinen } 2135a619a4c0SJuuso Oikarinen 21362103dec1SSimon Wunderlich u32 ieee80211_sta_get_rates(struct ieee80211_sub_if_data *sdata, 213746900298SJohannes Berg struct ieee802_11_elems *elems, 213857fbcce3SJohannes Berg enum nl80211_band band, u32 *basic_rates) 213946900298SJohannes Berg { 214046900298SJohannes Berg struct ieee80211_supported_band *sband; 214146900298SJohannes Berg size_t num_rates; 21422103dec1SSimon Wunderlich u32 supp_rates, rate_flags; 21432103dec1SSimon Wunderlich int i, j, shift; 214421a8e9ddSMohammed Shafi Shajakhan 21452103dec1SSimon Wunderlich sband = sdata->local->hw.wiphy->bands[band]; 214621a8e9ddSMohammed Shafi Shajakhan if (WARN_ON(!sband)) 214721a8e9ddSMohammed Shafi Shajakhan return 1; 21482103dec1SSimon Wunderlich 21492103dec1SSimon Wunderlich rate_flags = ieee80211_chandef_rate_flags(&sdata->vif.bss_conf.chandef); 21502103dec1SSimon Wunderlich shift = ieee80211_vif_get_shift(&sdata->vif); 215146900298SJohannes Berg 215246900298SJohannes Berg num_rates = sband->n_bitrates; 215346900298SJohannes Berg supp_rates = 0; 215446900298SJohannes Berg for (i = 0; i < elems->supp_rates_len + 215546900298SJohannes Berg elems->ext_supp_rates_len; i++) { 215646900298SJohannes Berg u8 rate = 0; 215746900298SJohannes Berg int own_rate; 21589ebb61a2SAshok Nagarajan bool is_basic; 215946900298SJohannes Berg if (i < elems->supp_rates_len) 216046900298SJohannes Berg rate = elems->supp_rates[i]; 216146900298SJohannes Berg else if (elems->ext_supp_rates) 216246900298SJohannes Berg rate = elems->ext_supp_rates 216346900298SJohannes Berg [i - elems->supp_rates_len]; 216446900298SJohannes Berg own_rate = 5 * (rate & 0x7f); 21659ebb61a2SAshok Nagarajan is_basic = !!(rate & 0x80); 21669ebb61a2SAshok Nagarajan 21679ebb61a2SAshok Nagarajan if (is_basic && (rate & 0x7f) == BSS_MEMBERSHIP_SELECTOR_HT_PHY) 21689ebb61a2SAshok Nagarajan continue; 21699ebb61a2SAshok Nagarajan 21709ebb61a2SAshok Nagarajan for (j = 0; j < num_rates; j++) { 21712103dec1SSimon Wunderlich int brate; 21722103dec1SSimon Wunderlich if ((rate_flags & sband->bitrates[j].flags) 21732103dec1SSimon Wunderlich != rate_flags) 21742103dec1SSimon Wunderlich continue; 21752103dec1SSimon Wunderlich 21762103dec1SSimon Wunderlich brate = DIV_ROUND_UP(sband->bitrates[j].bitrate, 21772103dec1SSimon Wunderlich 1 << shift); 21782103dec1SSimon Wunderlich 21792103dec1SSimon Wunderlich if (brate == own_rate) { 218046900298SJohannes Berg supp_rates |= BIT(j); 21819ebb61a2SAshok Nagarajan if (basic_rates && is_basic) 21829ebb61a2SAshok Nagarajan *basic_rates |= BIT(j); 21839ebb61a2SAshok Nagarajan } 21849ebb61a2SAshok Nagarajan } 218546900298SJohannes Berg } 218646900298SJohannes Berg return supp_rates; 218746900298SJohannes Berg } 2188f2753ddbSJohannes Berg 218984f6a01cSJohannes Berg void ieee80211_stop_device(struct ieee80211_local *local) 219084f6a01cSJohannes Berg { 219184f6a01cSJohannes Berg ieee80211_led_radio(local, false); 219267408c8cSJohannes Berg ieee80211_mod_tpt_led_trig(local, 0, IEEE80211_TPT_LEDTRIG_FL_RADIO); 219384f6a01cSJohannes Berg 219484f6a01cSJohannes Berg cancel_work_sync(&local->reconfig_filter); 219584f6a01cSJohannes Berg 219684f6a01cSJohannes Berg flush_workqueue(local->workqueue); 2197678f415fSLennert Buytenhek drv_stop(local); 219884f6a01cSJohannes Berg } 219984f6a01cSJohannes Berg 220074430f94SJohannes Berg static void ieee80211_flush_completed_scan(struct ieee80211_local *local, 220174430f94SJohannes Berg bool aborted) 220274430f94SJohannes Berg { 220374430f94SJohannes Berg /* It's possible that we don't handle the scan completion in 220474430f94SJohannes Berg * time during suspend, so if it's still marked as completed 220574430f94SJohannes Berg * here, queue the work and flush it to clean things up. 220674430f94SJohannes Berg * Instead of calling the worker function directly here, we 220774430f94SJohannes Berg * really queue it to avoid potential races with other flows 220874430f94SJohannes Berg * scheduling the same work. 220974430f94SJohannes Berg */ 221074430f94SJohannes Berg if (test_bit(SCAN_COMPLETED, &local->scanning)) { 221174430f94SJohannes Berg /* If coming from reconfiguration failure, abort the scan so 221274430f94SJohannes Berg * we don't attempt to continue a partial HW scan - which is 221374430f94SJohannes Berg * possible otherwise if (e.g.) the 2.4 GHz portion was the 221474430f94SJohannes Berg * completed scan, and a 5 GHz portion is still pending. 221574430f94SJohannes Berg */ 221674430f94SJohannes Berg if (aborted) 221774430f94SJohannes Berg set_bit(SCAN_ABORTED, &local->scanning); 221874430f94SJohannes Berg ieee80211_queue_delayed_work(&local->hw, &local->scan_work, 0); 221974430f94SJohannes Berg flush_delayed_work(&local->scan_work); 222074430f94SJohannes Berg } 222174430f94SJohannes Berg } 222274430f94SJohannes Berg 2223f6837ba8SJohannes Berg static void ieee80211_handle_reconfig_failure(struct ieee80211_local *local) 2224f6837ba8SJohannes Berg { 2225f6837ba8SJohannes Berg struct ieee80211_sub_if_data *sdata; 2226f6837ba8SJohannes Berg struct ieee80211_chanctx *ctx; 2227f6837ba8SJohannes Berg 2228f6837ba8SJohannes Berg /* 2229f6837ba8SJohannes Berg * We get here if during resume the device can't be restarted properly. 2230f6837ba8SJohannes Berg * We might also get here if this happens during HW reset, which is a 2231f6837ba8SJohannes Berg * slightly different situation and we need to drop all connections in 2232f6837ba8SJohannes Berg * the latter case. 2233f6837ba8SJohannes Berg * 2234f6837ba8SJohannes Berg * Ask cfg80211 to turn off all interfaces, this will result in more 2235f6837ba8SJohannes Berg * warnings but at least we'll then get into a clean stopped state. 2236f6837ba8SJohannes Berg */ 2237f6837ba8SJohannes Berg 2238f6837ba8SJohannes Berg local->resuming = false; 2239f6837ba8SJohannes Berg local->suspended = false; 22407584f88fSEliad Peller local->in_reconfig = false; 2241f6837ba8SJohannes Berg 224274430f94SJohannes Berg ieee80211_flush_completed_scan(local, true); 224374430f94SJohannes Berg 2244f6837ba8SJohannes Berg /* scheduled scan clearly can't be running any more, but tell 2245f6837ba8SJohannes Berg * cfg80211 and clear local state 2246f6837ba8SJohannes Berg */ 2247f6837ba8SJohannes Berg ieee80211_sched_scan_end(local); 2248f6837ba8SJohannes Berg 2249f6837ba8SJohannes Berg list_for_each_entry(sdata, &local->interfaces, list) 2250f6837ba8SJohannes Berg sdata->flags &= ~IEEE80211_SDATA_IN_DRIVER; 2251f6837ba8SJohannes Berg 2252f6837ba8SJohannes Berg /* Mark channel contexts as not being in the driver any more to avoid 2253f6837ba8SJohannes Berg * removing them from the driver during the shutdown process... 2254f6837ba8SJohannes Berg */ 2255f6837ba8SJohannes Berg mutex_lock(&local->chanctx_mtx); 2256f6837ba8SJohannes Berg list_for_each_entry(ctx, &local->chanctx_list, list) 2257f6837ba8SJohannes Berg ctx->driver_present = false; 2258f6837ba8SJohannes Berg mutex_unlock(&local->chanctx_mtx); 2259f6837ba8SJohannes Berg } 2260f6837ba8SJohannes Berg 2261153a5fc4SStanislaw Gruszka static void ieee80211_assign_chanctx(struct ieee80211_local *local, 2262b4f85443SJohannes Berg struct ieee80211_sub_if_data *sdata, 2263d8675a63SJohannes Berg struct ieee80211_link_data *link) 2264153a5fc4SStanislaw Gruszka { 2265153a5fc4SStanislaw Gruszka struct ieee80211_chanctx_conf *conf; 2266153a5fc4SStanislaw Gruszka struct ieee80211_chanctx *ctx; 2267153a5fc4SStanislaw Gruszka 2268153a5fc4SStanislaw Gruszka if (!local->use_chanctx) 2269153a5fc4SStanislaw Gruszka return; 2270153a5fc4SStanislaw Gruszka 2271153a5fc4SStanislaw Gruszka mutex_lock(&local->chanctx_mtx); 2272d8675a63SJohannes Berg conf = rcu_dereference_protected(link->conf->chanctx_conf, 2273153a5fc4SStanislaw Gruszka lockdep_is_held(&local->chanctx_mtx)); 2274153a5fc4SStanislaw Gruszka if (conf) { 2275153a5fc4SStanislaw Gruszka ctx = container_of(conf, struct ieee80211_chanctx, conf); 2276d8675a63SJohannes Berg drv_assign_vif_chanctx(local, sdata, link->link_id, ctx); 2277153a5fc4SStanislaw Gruszka } 2278153a5fc4SStanislaw Gruszka mutex_unlock(&local->chanctx_mtx); 2279153a5fc4SStanislaw Gruszka } 2280153a5fc4SStanislaw Gruszka 22811ea2c864SJohannes Berg static void ieee80211_reconfig_stations(struct ieee80211_sub_if_data *sdata) 22821ea2c864SJohannes Berg { 22831ea2c864SJohannes Berg struct ieee80211_local *local = sdata->local; 22841ea2c864SJohannes Berg struct sta_info *sta; 22851ea2c864SJohannes Berg 22861ea2c864SJohannes Berg /* add STAs back */ 22871ea2c864SJohannes Berg mutex_lock(&local->sta_mtx); 22881ea2c864SJohannes Berg list_for_each_entry(sta, &local->sta_list, list) { 22891ea2c864SJohannes Berg enum ieee80211_sta_state state; 22901ea2c864SJohannes Berg 22911ea2c864SJohannes Berg if (!sta->uploaded || sta->sdata != sdata) 22921ea2c864SJohannes Berg continue; 22931ea2c864SJohannes Berg 22941ea2c864SJohannes Berg for (state = IEEE80211_STA_NOTEXIST; 22951ea2c864SJohannes Berg state < sta->sta_state; state++) 22961ea2c864SJohannes Berg WARN_ON(drv_sta_state(local, sta->sdata, sta, state, 22971ea2c864SJohannes Berg state + 1)); 22981ea2c864SJohannes Berg } 22991ea2c864SJohannes Berg mutex_unlock(&local->sta_mtx); 23001ea2c864SJohannes Berg } 23011ea2c864SJohannes Berg 2302167e33f4SAyala Beker static int ieee80211_reconfig_nan(struct ieee80211_sub_if_data *sdata) 2303167e33f4SAyala Beker { 2304167e33f4SAyala Beker struct cfg80211_nan_func *func, **funcs; 2305167e33f4SAyala Beker int res, id, i = 0; 2306167e33f4SAyala Beker 2307167e33f4SAyala Beker res = drv_start_nan(sdata->local, sdata, 2308167e33f4SAyala Beker &sdata->u.nan.conf); 2309167e33f4SAyala Beker if (WARN_ON(res)) 2310167e33f4SAyala Beker return res; 2311167e33f4SAyala Beker 23126396bb22SKees Cook funcs = kcalloc(sdata->local->hw.max_nan_de_entries + 1, 23136396bb22SKees Cook sizeof(*funcs), 23146396bb22SKees Cook GFP_KERNEL); 2315167e33f4SAyala Beker if (!funcs) 2316167e33f4SAyala Beker return -ENOMEM; 2317167e33f4SAyala Beker 2318167e33f4SAyala Beker /* Add all the functions: 2319167e33f4SAyala Beker * This is a little bit ugly. We need to call a potentially sleeping 2320167e33f4SAyala Beker * callback for each NAN function, so we can't hold the spinlock. 2321167e33f4SAyala Beker */ 2322167e33f4SAyala Beker spin_lock_bh(&sdata->u.nan.func_lock); 2323167e33f4SAyala Beker 2324167e33f4SAyala Beker idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) 2325167e33f4SAyala Beker funcs[i++] = func; 2326167e33f4SAyala Beker 2327167e33f4SAyala Beker spin_unlock_bh(&sdata->u.nan.func_lock); 2328167e33f4SAyala Beker 2329167e33f4SAyala Beker for (i = 0; funcs[i]; i++) { 2330167e33f4SAyala Beker res = drv_add_nan_func(sdata->local, sdata, funcs[i]); 2331167e33f4SAyala Beker if (WARN_ON(res)) 2332167e33f4SAyala Beker ieee80211_nan_func_terminated(&sdata->vif, 2333167e33f4SAyala Beker funcs[i]->instance_id, 2334167e33f4SAyala Beker NL80211_NAN_FUNC_TERM_REASON_ERROR, 2335167e33f4SAyala Beker GFP_KERNEL); 2336167e33f4SAyala Beker } 2337167e33f4SAyala Beker 2338167e33f4SAyala Beker kfree(funcs); 2339167e33f4SAyala Beker 2340167e33f4SAyala Beker return 0; 2341167e33f4SAyala Beker } 2342167e33f4SAyala Beker 2343f2753ddbSJohannes Berg int ieee80211_reconfig(struct ieee80211_local *local) 2344f2753ddbSJohannes Berg { 2345f2753ddbSJohannes Berg struct ieee80211_hw *hw = &local->hw; 2346f2753ddbSJohannes Berg struct ieee80211_sub_if_data *sdata; 234755de908aSJohannes Berg struct ieee80211_chanctx *ctx; 2348f2753ddbSJohannes Berg struct sta_info *sta; 23492683d65bSEliad Peller int res, i; 2350d888130aSJohannes Berg bool reconfig_due_to_wowlan = false; 2351d43c6b6eSDavid Spinadel struct ieee80211_sub_if_data *sched_scan_sdata; 23526ea0a69cSJohannes Berg struct cfg80211_sched_scan_request *sched_scan_req; 2353d43c6b6eSDavid Spinadel bool sched_scan_stopped = false; 2354b0485e9fSEliad Peller bool suspended = local->suspended; 23557d352ccfSYoughandhar Chintala bool in_reconfig = false; 2356d888130aSJohannes Berg 23570f8b8245SEliad Peller /* nothing to do if HW shouldn't run */ 23580f8b8245SEliad Peller if (!local->open_count) 23590f8b8245SEliad Peller goto wake_up; 23600f8b8245SEliad Peller 23618f21b0adSJohannes Berg #ifdef CONFIG_PM 2362b0485e9fSEliad Peller if (suspended) 2363ceb99fe0SJohannes Berg local->resuming = true; 2364f2753ddbSJohannes Berg 2365eecc4800SJohannes Berg if (local->wowlan) { 2366b0485e9fSEliad Peller /* 2367b0485e9fSEliad Peller * In the wowlan case, both mac80211 and the device 2368b0485e9fSEliad Peller * are functional when the resume op is called, so 2369b0485e9fSEliad Peller * clear local->suspended so the device could operate 2370b0485e9fSEliad Peller * normally (e.g. pass rx frames). 2371b0485e9fSEliad Peller */ 2372b0485e9fSEliad Peller local->suspended = false; 2373eecc4800SJohannes Berg res = drv_resume(local); 237427b3eb9cSJohannes Berg local->wowlan = false; 2375eecc4800SJohannes Berg if (res < 0) { 2376eecc4800SJohannes Berg local->resuming = false; 2377eecc4800SJohannes Berg return res; 2378eecc4800SJohannes Berg } 2379eecc4800SJohannes Berg if (res == 0) 2380eecc4800SJohannes Berg goto wake_up; 2381eecc4800SJohannes Berg WARN_ON(res > 1); 2382eecc4800SJohannes Berg /* 2383eecc4800SJohannes Berg * res is 1, which means the driver requested 2384eecc4800SJohannes Berg * to go through a regular reset on wakeup. 2385b0485e9fSEliad Peller * restore local->suspended in this case. 2386eecc4800SJohannes Berg */ 2387d888130aSJohannes Berg reconfig_due_to_wowlan = true; 2388b0485e9fSEliad Peller local->suspended = true; 2389eecc4800SJohannes Berg } 2390eecc4800SJohannes Berg #endif 239194f9b97bSJohannes Berg 239224feda00SLuis R. Rodriguez /* 239343d6df00SEliad Peller * In case of hw_restart during suspend (without wowlan), 239443d6df00SEliad Peller * cancel restart work, as we are reconfiguring the device 239543d6df00SEliad Peller * anyway. 239643d6df00SEliad Peller * Note that restart_work is scheduled on a frozen workqueue, 239743d6df00SEliad Peller * so we can't deadlock in this case. 239843d6df00SEliad Peller */ 239943d6df00SEliad Peller if (suspended && local->in_reconfig && !reconfig_due_to_wowlan) 240043d6df00SEliad Peller cancel_work_sync(&local->restart_work); 240143d6df00SEliad Peller 2402968a76ceSEliad Peller local->started = false; 2403968a76ceSEliad Peller 240443d6df00SEliad Peller /* 240524feda00SLuis R. Rodriguez * Upon resume hardware can sometimes be goofy due to 240624feda00SLuis R. Rodriguez * various platform / driver / bus issues, so restarting 240724feda00SLuis R. Rodriguez * the device may at times not work immediately. Propagate 240824feda00SLuis R. Rodriguez * the error. 240924feda00SLuis R. Rodriguez */ 241024487981SJohannes Berg res = drv_start(local); 241124feda00SLuis R. Rodriguez if (res) { 2412b0485e9fSEliad Peller if (suspended) 2413f6837ba8SJohannes Berg WARN(1, "Hardware became unavailable upon resume. This could be a software issue prior to suspend or a hardware issue.\n"); 2414f6837ba8SJohannes Berg else 2415f6837ba8SJohannes Berg WARN(1, "Hardware became unavailable during restart.\n"); 2416f6837ba8SJohannes Berg ieee80211_handle_reconfig_failure(local); 241724feda00SLuis R. Rodriguez return res; 241824feda00SLuis R. Rodriguez } 2419f2753ddbSJohannes Berg 24207f281975SYogesh Ashok Powar /* setup fragmentation threshold */ 24217f281975SYogesh Ashok Powar drv_set_frag_threshold(local, hw->wiphy->frag_threshold); 24227f281975SYogesh Ashok Powar 24237f281975SYogesh Ashok Powar /* setup RTS threshold */ 24247f281975SYogesh Ashok Powar drv_set_rts_threshold(local, hw->wiphy->rts_threshold); 24257f281975SYogesh Ashok Powar 24267f281975SYogesh Ashok Powar /* reset coverage class */ 24277f281975SYogesh Ashok Powar drv_set_coverage_class(local, hw->wiphy->coverage_class); 24287f281975SYogesh Ashok Powar 24291f87f7d3SJohannes Berg ieee80211_led_radio(local, true); 243067408c8cSJohannes Berg ieee80211_mod_tpt_led_trig(local, 243167408c8cSJohannes Berg IEEE80211_TPT_LEDTRIG_FL_RADIO, 0); 2432f2753ddbSJohannes Berg 2433f2753ddbSJohannes Berg /* add interfaces */ 24346dd23603SJohannes Berg sdata = wiphy_dereference(local->hw.wiphy, local->monitor_sdata); 24354b6f1dd6SJohannes Berg if (sdata) { 24363c3e21e7SJohannes Berg /* in HW restart it exists already */ 24373c3e21e7SJohannes Berg WARN_ON(local->resuming); 24384b6f1dd6SJohannes Berg res = drv_add_interface(local, sdata); 24394b6f1dd6SJohannes Berg if (WARN_ON(res)) { 24400c2bef46SMonam Agarwal RCU_INIT_POINTER(local->monitor_sdata, NULL); 24414b6f1dd6SJohannes Berg synchronize_net(); 24424b6f1dd6SJohannes Berg kfree(sdata); 24434b6f1dd6SJohannes Berg } 24444b6f1dd6SJohannes Berg } 24454b6f1dd6SJohannes Berg 2446f2753ddbSJohannes Berg list_for_each_entry(sdata, &local->interfaces, list) { 2447f2753ddbSJohannes Berg if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 2448f2753ddbSJohannes Berg sdata->vif.type != NL80211_IFTYPE_MONITOR && 2449c8fff3dcSLuciano Coelho ieee80211_sdata_running(sdata)) { 24507b7eab6fSJohannes Berg res = drv_add_interface(local, sdata); 2451c8fff3dcSLuciano Coelho if (WARN_ON(res)) 2452c8fff3dcSLuciano Coelho break; 2453c8fff3dcSLuciano Coelho } 2454c8fff3dcSLuciano Coelho } 2455c8fff3dcSLuciano Coelho 2456c8fff3dcSLuciano Coelho /* If adding any of the interfaces failed above, roll back and 2457c8fff3dcSLuciano Coelho * report failure. 2458c8fff3dcSLuciano Coelho */ 2459c8fff3dcSLuciano Coelho if (res) { 2460c8fff3dcSLuciano Coelho list_for_each_entry_continue_reverse(sdata, &local->interfaces, 2461c8fff3dcSLuciano Coelho list) 2462c8fff3dcSLuciano Coelho if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 2463c8fff3dcSLuciano Coelho sdata->vif.type != NL80211_IFTYPE_MONITOR && 2464c8fff3dcSLuciano Coelho ieee80211_sdata_running(sdata)) 2465c8fff3dcSLuciano Coelho drv_remove_interface(local, sdata); 2466c8fff3dcSLuciano Coelho ieee80211_handle_reconfig_failure(local); 2467c8fff3dcSLuciano Coelho return res; 2468f2753ddbSJohannes Berg } 2469f2753ddbSJohannes Berg 247055de908aSJohannes Berg /* add channel contexts */ 2471f0dea9c7SArend van Spriel if (local->use_chanctx) { 247255de908aSJohannes Berg mutex_lock(&local->chanctx_mtx); 247355de908aSJohannes Berg list_for_each_entry(ctx, &local->chanctx_list, list) 24745bcae31dSMichal Kazior if (ctx->replace_state != 24755bcae31dSMichal Kazior IEEE80211_CHANCTX_REPLACES_OTHER) 247655de908aSJohannes Berg WARN_ON(drv_add_chanctx(local, ctx)); 247755de908aSJohannes Berg mutex_unlock(&local->chanctx_mtx); 247855de908aSJohannes Berg 24796dd23603SJohannes Berg sdata = wiphy_dereference(local->hw.wiphy, 24806dd23603SJohannes Berg local->monitor_sdata); 2481153a5fc4SStanislaw Gruszka if (sdata && ieee80211_sdata_running(sdata)) 2482d8675a63SJohannes Berg ieee80211_assign_chanctx(local, sdata, &sdata->deflink); 24837df180f7SZhao, Gang } 2484fe5f2559SJohannes Berg 2485f2753ddbSJohannes Berg /* reconfigure hardware */ 2486f2753ddbSJohannes Berg ieee80211_hw_config(local, ~0); 2487f2753ddbSJohannes Berg 2488f2753ddbSJohannes Berg ieee80211_configure_filter(local); 2489f2753ddbSJohannes Berg 2490f2753ddbSJohannes Berg /* Finally also reconfigure all the BSS information */ 2491f2753ddbSJohannes Berg list_for_each_entry(sdata, &local->interfaces, list) { 2492d8675a63SJohannes Berg unsigned int link_id; 2493ac8dd506SJohannes Berg u32 changed; 2494ac8dd506SJohannes Berg 24959607e6b6SJohannes Berg if (!ieee80211_sdata_running(sdata)) 2496f2753ddbSJohannes Berg continue; 2497ac8dd506SJohannes Berg 2498d8675a63SJohannes Berg sdata_lock(sdata); 2499d8675a63SJohannes Berg for (link_id = 0; 2500d8675a63SJohannes Berg link_id < ARRAY_SIZE(sdata->vif.link_conf); 2501d8675a63SJohannes Berg link_id++) { 2502d8675a63SJohannes Berg struct ieee80211_link_data *link; 2503d8675a63SJohannes Berg 2504d8675a63SJohannes Berg link = sdata_dereference(sdata->link[link_id], sdata); 2505d8675a63SJohannes Berg if (link) 2506b4f85443SJohannes Berg ieee80211_assign_chanctx(local, sdata, link); 2507b4f85443SJohannes Berg } 2508d8675a63SJohannes Berg sdata_unlock(sdata); 25091ea2c864SJohannes Berg 25101ea2c864SJohannes Berg switch (sdata->vif.type) { 25111ea2c864SJohannes Berg case NL80211_IFTYPE_AP_VLAN: 25121ea2c864SJohannes Berg case NL80211_IFTYPE_MONITOR: 25131ea2c864SJohannes Berg break; 25144926b51bSJohannes Berg case NL80211_IFTYPE_ADHOC: 2515f276e20bSJohannes Berg if (sdata->vif.cfg.ibss_joined) 25164926b51bSJohannes Berg WARN_ON(drv_join_ibss(local, sdata)); 2517fc0561dcSGustavo A. R. Silva fallthrough; 25181ea2c864SJohannes Berg default: 25191ea2c864SJohannes Berg ieee80211_reconfig_stations(sdata); 2520fc0561dcSGustavo A. R. Silva fallthrough; 25211ea2c864SJohannes Berg case NL80211_IFTYPE_AP: /* AP stations are handled later */ 25221ea2c864SJohannes Berg for (i = 0; i < IEEE80211_NUM_ACS; i++) 2523b3e2130bSJohannes Berg drv_conf_tx(local, &sdata->deflink, i, 2524b3e2130bSJohannes Berg &sdata->deflink.tx_conf[i]); 25251ea2c864SJohannes Berg break; 25261ea2c864SJohannes Berg } 25271ea2c864SJohannes Berg 2528ac8dd506SJohannes Berg /* common change flags for all interface types */ 2529ac8dd506SJohannes Berg changed = BSS_CHANGED_ERP_CTS_PROT | 2530ac8dd506SJohannes Berg BSS_CHANGED_ERP_PREAMBLE | 2531ac8dd506SJohannes Berg BSS_CHANGED_ERP_SLOT | 2532ac8dd506SJohannes Berg BSS_CHANGED_HT | 2533ac8dd506SJohannes Berg BSS_CHANGED_BASIC_RATES | 2534ac8dd506SJohannes Berg BSS_CHANGED_BEACON_INT | 2535ac8dd506SJohannes Berg BSS_CHANGED_BSSID | 25364ced3f74SJohannes Berg BSS_CHANGED_CQM | 253755de47f6SEliad Peller BSS_CHANGED_QOS | 25381ea6f9c0SJohannes Berg BSS_CHANGED_IDLE | 2539dcbe73caSPradeep Kumar Chitrapu BSS_CHANGED_TXPOWER | 2540dcbe73caSPradeep Kumar Chitrapu BSS_CHANGED_MCAST_RATE; 2541ac8dd506SJohannes Berg 2542d0a9123eSJohannes Berg if (sdata->vif.bss_conf.mu_mimo_owner) 254323a1f8d4SSara Sharon changed |= BSS_CHANGED_MU_GROUPS; 254423a1f8d4SSara Sharon 2545f2753ddbSJohannes Berg switch (sdata->vif.type) { 2546f2753ddbSJohannes Berg case NL80211_IFTYPE_STATION: 25470d392e93SEliad Peller changed |= BSS_CHANGED_ASSOC | 2548ab095877SEliad Peller BSS_CHANGED_ARP_FILTER | 2549ab095877SEliad Peller BSS_CHANGED_PS; 2550c65dd147SEmmanuel Grumbach 2551989c6505SAlexander Bondar /* Re-send beacon info report to the driver */ 2552bfd8403aSJohannes Berg if (sdata->deflink.u.mgd.have_beacon) 2553989c6505SAlexander Bondar changed |= BSS_CHANGED_BEACON_INFO; 2554c65dd147SEmmanuel Grumbach 2555e38a017bSAvraham Stern if (sdata->vif.bss_conf.max_idle_period || 2556e38a017bSAvraham Stern sdata->vif.bss_conf.protected_keep_alive) 2557e38a017bSAvraham Stern changed |= BSS_CHANGED_KEEP_ALIVE; 2558e38a017bSAvraham Stern 25598d61ffa5SJohannes Berg sdata_lock(sdata); 2560ac8dd506SJohannes Berg ieee80211_bss_info_change_notify(sdata, changed); 25618d61ffa5SJohannes Berg sdata_unlock(sdata); 2562ac8dd506SJohannes Berg break; 25636e0bd6c3SRostislav Lisovy case NL80211_IFTYPE_OCB: 2564239281f8SRostislav Lisovy changed |= BSS_CHANGED_OCB; 2565239281f8SRostislav Lisovy ieee80211_bss_info_change_notify(sdata, changed); 25666e0bd6c3SRostislav Lisovy break; 2567f2753ddbSJohannes Berg case NL80211_IFTYPE_ADHOC: 2568ac8dd506SJohannes Berg changed |= BSS_CHANGED_IBSS; 2569fc0561dcSGustavo A. R. Silva fallthrough; 2570f2753ddbSJohannes Berg case NL80211_IFTYPE_AP: 2571339afbf4SJohannes Berg changed |= BSS_CHANGED_SSID | BSS_CHANGED_P2P_PS; 2572e7979ac7SArik Nemtsov 2573bc847970SPradeep Kumar Chitrapu if (sdata->vif.bss_conf.ftm_responder == 1 && 2574bc847970SPradeep Kumar Chitrapu wiphy_ext_feature_isset(sdata->local->hw.wiphy, 2575bc847970SPradeep Kumar Chitrapu NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER)) 2576bc847970SPradeep Kumar Chitrapu changed |= BSS_CHANGED_FTM_RESPONDER; 2577bc847970SPradeep Kumar Chitrapu 25781041638fSJohannes Berg if (sdata->vif.type == NL80211_IFTYPE_AP) { 2579e7979ac7SArik Nemtsov changed |= BSS_CHANGED_AP_PROBE_RESP; 2580e7979ac7SArik Nemtsov 2581bfd8403aSJohannes Berg if (rcu_access_pointer(sdata->deflink.u.ap.beacon)) 2582ae7ba17bSShaul Triebitz drv_start_ap(local, sdata, 0); 25831041638fSJohannes Berg } 2584fc0561dcSGustavo A. R. Silva fallthrough; 2585f2753ddbSJohannes Berg case NL80211_IFTYPE_MESH_POINT: 25868da34932SJohannes Berg if (sdata->vif.bss_conf.enable_beacon) { 2587ac8dd506SJohannes Berg changed |= BSS_CHANGED_BEACON | 2588ac8dd506SJohannes Berg BSS_CHANGED_BEACON_ENABLED; 25892d0ddec5SJohannes Berg ieee80211_bss_info_change_notify(sdata, changed); 25908da34932SJohannes Berg } 2591f2753ddbSJohannes Berg break; 2592167e33f4SAyala Beker case NL80211_IFTYPE_NAN: 2593167e33f4SAyala Beker res = ieee80211_reconfig_nan(sdata); 2594167e33f4SAyala Beker if (res < 0) { 2595167e33f4SAyala Beker ieee80211_handle_reconfig_failure(local); 2596167e33f4SAyala Beker return res; 2597167e33f4SAyala Beker } 2598167e33f4SAyala Beker break; 2599f2753ddbSJohannes Berg case NL80211_IFTYPE_AP_VLAN: 2600f2753ddbSJohannes Berg case NL80211_IFTYPE_MONITOR: 260198104fdeSJohannes Berg case NL80211_IFTYPE_P2P_DEVICE: 2602b205786eSZhao, Gang /* nothing to do */ 2603f142c6b9SJohannes Berg break; 2604f2753ddbSJohannes Berg case NL80211_IFTYPE_UNSPECIFIED: 26052e161f78SJohannes Berg case NUM_NL80211_IFTYPES: 26062ca27bcfSJohannes Berg case NL80211_IFTYPE_P2P_CLIENT: 26072ca27bcfSJohannes Berg case NL80211_IFTYPE_P2P_GO: 260870d9c599SJohannes Berg case NL80211_IFTYPE_WDS: 2609f2753ddbSJohannes Berg WARN_ON(1); 2610f2753ddbSJohannes Berg break; 2611f2753ddbSJohannes Berg } 2612f2753ddbSJohannes Berg } 2613f2753ddbSJohannes Berg 26144a733ef1SJohannes Berg ieee80211_recalc_ps(local); 26158e1b23b9SEyal Shapira 26162a419056SJohannes Berg /* 26176e1b1b24SEliad Peller * The sta might be in psm against the ap (e.g. because 26186e1b1b24SEliad Peller * this was the state before a hw restart), so we 26196e1b1b24SEliad Peller * explicitly send a null packet in order to make sure 26206e1b1b24SEliad Peller * it'll sync against the ap (and get out of psm). 26216e1b1b24SEliad Peller */ 26226e1b1b24SEliad Peller if (!(local->hw.conf.flags & IEEE80211_CONF_PS)) { 26236e1b1b24SEliad Peller list_for_each_entry(sdata, &local->interfaces, list) { 26246e1b1b24SEliad Peller if (sdata->vif.type != NL80211_IFTYPE_STATION) 26256e1b1b24SEliad Peller continue; 262620f544eeSJohannes Berg if (!sdata->u.mgd.associated) 262720f544eeSJohannes Berg continue; 26286e1b1b24SEliad Peller 2629076cdcb1SJohannes Berg ieee80211_send_nullfunc(local, sdata, false); 26306e1b1b24SEliad Peller } 26316e1b1b24SEliad Peller } 26326e1b1b24SEliad Peller 26332e8d397eSArik Nemtsov /* APs are now beaconing, add back stations */ 26342e8d397eSArik Nemtsov mutex_lock(&local->sta_mtx); 26352e8d397eSArik Nemtsov list_for_each_entry(sta, &local->sta_list, list) { 26362e8d397eSArik Nemtsov enum ieee80211_sta_state state; 26372e8d397eSArik Nemtsov 26382e8d397eSArik Nemtsov if (!sta->uploaded) 26392e8d397eSArik Nemtsov continue; 26402e8d397eSArik Nemtsov 264119103a4bSmpubbise@codeaurora.org if (sta->sdata->vif.type != NL80211_IFTYPE_AP && 264219103a4bSmpubbise@codeaurora.org sta->sdata->vif.type != NL80211_IFTYPE_AP_VLAN) 26432e8d397eSArik Nemtsov continue; 26442e8d397eSArik Nemtsov 26452e8d397eSArik Nemtsov for (state = IEEE80211_STA_NOTEXIST; 26462e8d397eSArik Nemtsov state < sta->sta_state; state++) 26472e8d397eSArik Nemtsov WARN_ON(drv_sta_state(local, sta->sdata, sta, state, 26482e8d397eSArik Nemtsov state + 1)); 26492e8d397eSArik Nemtsov } 26502e8d397eSArik Nemtsov mutex_unlock(&local->sta_mtx); 26512e8d397eSArik Nemtsov 26527b21aea0SEyal Shapira /* add back keys */ 26537b21aea0SEyal Shapira list_for_each_entry(sdata, &local->interfaces, list) 2654624ff4b2SLior Cohen ieee80211_reenable_keys(sdata); 26557b21aea0SEyal Shapira 26560d440ea2SEliad Peller /* Reconfigure sched scan if it was interrupted by FW restart */ 26570d440ea2SEliad Peller mutex_lock(&local->mtx); 26580d440ea2SEliad Peller sched_scan_sdata = rcu_dereference_protected(local->sched_scan_sdata, 26590d440ea2SEliad Peller lockdep_is_held(&local->mtx)); 26600d440ea2SEliad Peller sched_scan_req = rcu_dereference_protected(local->sched_scan_req, 26610d440ea2SEliad Peller lockdep_is_held(&local->mtx)); 26620d440ea2SEliad Peller if (sched_scan_sdata && sched_scan_req) 26630d440ea2SEliad Peller /* 26640d440ea2SEliad Peller * Sched scan stopped, but we don't want to report it. Instead, 26650d440ea2SEliad Peller * we're trying to reschedule. However, if more than one scan 26660d440ea2SEliad Peller * plan was set, we cannot reschedule since we don't know which 26670d440ea2SEliad Peller * scan plan was currently running (and some scan plans may have 26680d440ea2SEliad Peller * already finished). 26690d440ea2SEliad Peller */ 26700d440ea2SEliad Peller if (sched_scan_req->n_scan_plans > 1 || 26710d440ea2SEliad Peller __ieee80211_request_sched_scan_start(sched_scan_sdata, 2672b9f628fcSEliad Peller sched_scan_req)) { 2673b9f628fcSEliad Peller RCU_INIT_POINTER(local->sched_scan_sdata, NULL); 2674b9f628fcSEliad Peller RCU_INIT_POINTER(local->sched_scan_req, NULL); 26750d440ea2SEliad Peller sched_scan_stopped = true; 2676b9f628fcSEliad Peller } 26770d440ea2SEliad Peller mutex_unlock(&local->mtx); 26780d440ea2SEliad Peller 26790d440ea2SEliad Peller if (sched_scan_stopped) 2680a05829a7SJohannes Berg cfg80211_sched_scan_stopped_locked(local->hw.wiphy, 0); 26810d440ea2SEliad Peller 2682c6209488SEliad Peller wake_up: 2683470f4d61SEliad Peller 26843c3e21e7SJohannes Berg if (local->monitors == local->open_count && local->monitors > 0) 26853c3e21e7SJohannes Berg ieee80211_add_virtual_monitor(local); 26863c3e21e7SJohannes Berg 26876e1b1b24SEliad Peller /* 26882a419056SJohannes Berg * Clear the WLAN_STA_BLOCK_BA flag so new aggregation 26892a419056SJohannes Berg * sessions can be established after a resume. 26902a419056SJohannes Berg * 26912a419056SJohannes Berg * Also tear down aggregation sessions since reconfiguring 26922a419056SJohannes Berg * them in a hardware restart scenario is not easily done 26932a419056SJohannes Berg * right now, and the hardware will have lost information 26942a419056SJohannes Berg * about the sessions, but we and the AP still think they 26952a419056SJohannes Berg * are active. This is really a workaround though. 26962a419056SJohannes Berg */ 269730686bf7SJohannes Berg if (ieee80211_hw_check(hw, AMPDU_AGGREGATION)) { 26982a419056SJohannes Berg mutex_lock(&local->sta_mtx); 26992a419056SJohannes Berg 27002a419056SJohannes Berg list_for_each_entry(sta, &local->sta_list, list) { 270127392719SEliad Peller if (!local->resuming) 2702c82c4a80SJohannes Berg ieee80211_sta_tear_down_BA_sessions( 2703c82c4a80SJohannes Berg sta, AGG_STOP_LOCAL_REQUEST); 2704c2c98fdeSJohannes Berg clear_sta_flag(sta, WLAN_STA_BLOCK_BA); 270574e2bd1fSWey-Yi Guy } 27062a419056SJohannes Berg 27072a419056SJohannes Berg mutex_unlock(&local->sta_mtx); 270874e2bd1fSWey-Yi Guy } 270974e2bd1fSWey-Yi Guy 271013dee10bSJohannes Berg /* 271113dee10bSJohannes Berg * If this is for hw restart things are still running. 271213dee10bSJohannes Berg * We may want to change that later, however. 271313dee10bSJohannes Berg */ 271413dee10bSJohannes Berg if (local->open_count && (!suspended || reconfig_due_to_wowlan)) 271513dee10bSJohannes Berg drv_reconfig_complete(local, IEEE80211_RECONFIG_TYPE_RESTART); 271613dee10bSJohannes Berg 27172316380fSSara Sharon if (local->in_reconfig) { 27187d352ccfSYoughandhar Chintala in_reconfig = local->in_reconfig; 27192316380fSSara Sharon local->in_reconfig = false; 27202316380fSSara Sharon barrier(); 27212316380fSSara Sharon 27222316380fSSara Sharon /* Restart deferred ROCs */ 27232316380fSSara Sharon mutex_lock(&local->mtx); 27242316380fSSara Sharon ieee80211_start_next_roc(local); 27252316380fSSara Sharon mutex_unlock(&local->mtx); 2726f8891461SNaftali Goldstein 2727f8891461SNaftali Goldstein /* Requeue all works */ 2728f8891461SNaftali Goldstein list_for_each_entry(sdata, &local->interfaces, list) 2729f8891461SNaftali Goldstein ieee80211_queue_work(&local->hw, &sdata->work); 27302316380fSSara Sharon } 27312316380fSSara Sharon 2732445ea4e8SJohannes Berg ieee80211_wake_queues_by_reason(hw, IEEE80211_MAX_QUEUE_MAP, 2733cca07b00SLuciano Coelho IEEE80211_QUEUE_STOP_REASON_SUSPEND, 2734cca07b00SLuciano Coelho false); 2735f2753ddbSJohannes Berg 27367d352ccfSYoughandhar Chintala if (in_reconfig) { 27377d352ccfSYoughandhar Chintala list_for_each_entry(sdata, &local->interfaces, list) { 27387d352ccfSYoughandhar Chintala if (!ieee80211_sdata_running(sdata)) 27397d352ccfSYoughandhar Chintala continue; 27407d352ccfSYoughandhar Chintala if (sdata->vif.type == NL80211_IFTYPE_STATION) 27417d352ccfSYoughandhar Chintala ieee80211_sta_restart(sdata); 27427d352ccfSYoughandhar Chintala } 27437d352ccfSYoughandhar Chintala } 27447d352ccfSYoughandhar Chintala 2745b0485e9fSEliad Peller if (!suspended) 27465bb644a0SJohannes Berg return 0; 27475bb644a0SJohannes Berg 27485bb644a0SJohannes Berg #ifdef CONFIG_PM 2749ceb99fe0SJohannes Berg /* first set suspended false, then resuming */ 27505bb644a0SJohannes Berg local->suspended = false; 2751ceb99fe0SJohannes Berg mb(); 2752ceb99fe0SJohannes Berg local->resuming = false; 27535bb644a0SJohannes Berg 275474430f94SJohannes Berg ieee80211_flush_completed_scan(local, false); 27559120d94eSLuciano Coelho 27560f8b8245SEliad Peller if (local->open_count && !reconfig_due_to_wowlan) 2757cf2c92d8SEliad Peller drv_reconfig_complete(local, IEEE80211_RECONFIG_TYPE_SUSPEND); 2758cf2c92d8SEliad Peller 2759b8360ab8SJohannes Berg list_for_each_entry(sdata, &local->interfaces, list) { 2760b8360ab8SJohannes Berg if (!ieee80211_sdata_running(sdata)) 2761b8360ab8SJohannes Berg continue; 2762b8360ab8SJohannes Berg if (sdata->vif.type == NL80211_IFTYPE_STATION) 2763b8360ab8SJohannes Berg ieee80211_sta_restart(sdata); 2764b8360ab8SJohannes Berg } 2765b8360ab8SJohannes Berg 276626d59535SJohannes Berg mod_timer(&local->sta_cleanup, jiffies + 1); 27675bb644a0SJohannes Berg #else 27685bb644a0SJohannes Berg WARN_ON(1); 27695bb644a0SJohannes Berg #endif 2770d43c6b6eSDavid Spinadel 2771f2753ddbSJohannes Berg return 0; 2772f2753ddbSJohannes Berg } 277342935ecaSLuis R. Rodriguez 27747d352ccfSYoughandhar Chintala static void ieee80211_reconfig_disconnect(struct ieee80211_vif *vif, u8 flag) 277595acac61SJohannes Berg { 277695acac61SJohannes Berg struct ieee80211_sub_if_data *sdata; 277795acac61SJohannes Berg struct ieee80211_local *local; 277895acac61SJohannes Berg struct ieee80211_key *key; 277995acac61SJohannes Berg 278095acac61SJohannes Berg if (WARN_ON(!vif)) 278195acac61SJohannes Berg return; 278295acac61SJohannes Berg 278395acac61SJohannes Berg sdata = vif_to_sdata(vif); 278495acac61SJohannes Berg local = sdata->local; 278595acac61SJohannes Berg 27867d352ccfSYoughandhar Chintala if (WARN_ON(flag & IEEE80211_SDATA_DISCONNECT_RESUME && 27877d352ccfSYoughandhar Chintala !local->resuming)) 27887d352ccfSYoughandhar Chintala return; 27897d352ccfSYoughandhar Chintala 27907d352ccfSYoughandhar Chintala if (WARN_ON(flag & IEEE80211_SDATA_DISCONNECT_HW_RESTART && 27917d352ccfSYoughandhar Chintala !local->in_reconfig)) 279295acac61SJohannes Berg return; 279395acac61SJohannes Berg 279495acac61SJohannes Berg if (WARN_ON(vif->type != NL80211_IFTYPE_STATION)) 279595acac61SJohannes Berg return; 279695acac61SJohannes Berg 27977d352ccfSYoughandhar Chintala sdata->flags |= flag; 279895acac61SJohannes Berg 279995acac61SJohannes Berg mutex_lock(&local->key_mtx); 280095acac61SJohannes Berg list_for_each_entry(key, &sdata->key_list, list) 280195acac61SJohannes Berg key->flags |= KEY_FLAG_TAINTED; 280295acac61SJohannes Berg mutex_unlock(&local->key_mtx); 280395acac61SJohannes Berg } 28047d352ccfSYoughandhar Chintala 28057d352ccfSYoughandhar Chintala void ieee80211_hw_restart_disconnect(struct ieee80211_vif *vif) 28067d352ccfSYoughandhar Chintala { 28077d352ccfSYoughandhar Chintala ieee80211_reconfig_disconnect(vif, IEEE80211_SDATA_DISCONNECT_HW_RESTART); 28087d352ccfSYoughandhar Chintala } 28097d352ccfSYoughandhar Chintala EXPORT_SYMBOL_GPL(ieee80211_hw_restart_disconnect); 28107d352ccfSYoughandhar Chintala 28117d352ccfSYoughandhar Chintala void ieee80211_resume_disconnect(struct ieee80211_vif *vif) 28127d352ccfSYoughandhar Chintala { 28137d352ccfSYoughandhar Chintala ieee80211_reconfig_disconnect(vif, IEEE80211_SDATA_DISCONNECT_RESUME); 28147d352ccfSYoughandhar Chintala } 281595acac61SJohannes Berg EXPORT_SYMBOL_GPL(ieee80211_resume_disconnect); 281695acac61SJohannes Berg 2817e9aac179SJohannes Berg void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata, 2818d8675a63SJohannes Berg struct ieee80211_link_data *link) 28190f78231bSJohannes Berg { 282004ecd257SJohannes Berg struct ieee80211_local *local = sdata->local; 282104ecd257SJohannes Berg struct ieee80211_chanctx_conf *chanctx_conf; 282204ecd257SJohannes Berg struct ieee80211_chanctx *chanctx; 28230f78231bSJohannes Berg 282404ecd257SJohannes Berg mutex_lock(&local->chanctx_mtx); 28250f78231bSJohannes Berg 2826d8675a63SJohannes Berg chanctx_conf = rcu_dereference_protected(link->conf->chanctx_conf, 282704ecd257SJohannes Berg lockdep_is_held(&local->chanctx_mtx)); 28280f78231bSJohannes Berg 2829c189a685SAndrei Otcheretianski /* 2830c189a685SAndrei Otcheretianski * This function can be called from a work, thus it may be possible 2831c189a685SAndrei Otcheretianski * that the chanctx_conf is removed (due to a disconnection, for 2832c189a685SAndrei Otcheretianski * example). 2833c189a685SAndrei Otcheretianski * So nothing should be done in such case. 2834c189a685SAndrei Otcheretianski */ 2835c189a685SAndrei Otcheretianski if (!chanctx_conf) 28365d8e4237SJohannes Berg goto unlock; 28370f78231bSJohannes Berg 283804ecd257SJohannes Berg chanctx = container_of(chanctx_conf, struct ieee80211_chanctx, conf); 283904ecd257SJohannes Berg ieee80211_recalc_smps_chanctx(local, chanctx); 28405d8e4237SJohannes Berg unlock: 284104ecd257SJohannes Berg mutex_unlock(&local->chanctx_mtx); 28420f78231bSJohannes Berg } 28438e664fb3SJohannes Berg 284421f659bfSEliad Peller void ieee80211_recalc_min_chandef(struct ieee80211_sub_if_data *sdata) 284521f659bfSEliad Peller { 284621f659bfSEliad Peller struct ieee80211_local *local = sdata->local; 284721f659bfSEliad Peller struct ieee80211_chanctx_conf *chanctx_conf; 284821f659bfSEliad Peller struct ieee80211_chanctx *chanctx; 284921f659bfSEliad Peller 285021f659bfSEliad Peller mutex_lock(&local->chanctx_mtx); 285121f659bfSEliad Peller 2852d0a9123eSJohannes Berg chanctx_conf = rcu_dereference_protected(sdata->vif.bss_conf.chanctx_conf, 285321f659bfSEliad Peller lockdep_is_held(&local->chanctx_mtx)); 285421f659bfSEliad Peller 285521f659bfSEliad Peller if (WARN_ON_ONCE(!chanctx_conf)) 285621f659bfSEliad Peller goto unlock; 285721f659bfSEliad Peller 285821f659bfSEliad Peller chanctx = container_of(chanctx_conf, struct ieee80211_chanctx, conf); 285921f659bfSEliad Peller ieee80211_recalc_chanctx_min_def(local, chanctx); 286021f659bfSEliad Peller unlock: 286121f659bfSEliad Peller mutex_unlock(&local->chanctx_mtx); 286221f659bfSEliad Peller } 286321f659bfSEliad Peller 28648e664fb3SJohannes Berg size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset) 28658e664fb3SJohannes Berg { 28668e664fb3SJohannes Berg size_t pos = offset; 28678e664fb3SJohannes Berg 28688e664fb3SJohannes Berg while (pos < ielen && ies[pos] != WLAN_EID_VENDOR_SPECIFIC) 28698e664fb3SJohannes Berg pos += 2 + ies[pos + 1]; 28708e664fb3SJohannes Berg 28718e664fb3SJohannes Berg return pos; 28728e664fb3SJohannes Berg } 2873615f7b9bSMeenakshi Venkataraman 2874ef96a842SBen Greear u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap, 287542e7aa77SAlexander Simon u16 cap) 287642e7aa77SAlexander Simon { 287742e7aa77SAlexander Simon __le16 tmp; 287842e7aa77SAlexander Simon 287942e7aa77SAlexander Simon *pos++ = WLAN_EID_HT_CAPABILITY; 288042e7aa77SAlexander Simon *pos++ = sizeof(struct ieee80211_ht_cap); 288142e7aa77SAlexander Simon memset(pos, 0, sizeof(struct ieee80211_ht_cap)); 288242e7aa77SAlexander Simon 288342e7aa77SAlexander Simon /* capability flags */ 288442e7aa77SAlexander Simon tmp = cpu_to_le16(cap); 288542e7aa77SAlexander Simon memcpy(pos, &tmp, sizeof(u16)); 288642e7aa77SAlexander Simon pos += sizeof(u16); 288742e7aa77SAlexander Simon 288842e7aa77SAlexander Simon /* AMPDU parameters */ 2889ef96a842SBen Greear *pos++ = ht_cap->ampdu_factor | 2890ef96a842SBen Greear (ht_cap->ampdu_density << 289142e7aa77SAlexander Simon IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT); 289242e7aa77SAlexander Simon 289342e7aa77SAlexander Simon /* MCS set */ 2894ef96a842SBen Greear memcpy(pos, &ht_cap->mcs, sizeof(ht_cap->mcs)); 2895ef96a842SBen Greear pos += sizeof(ht_cap->mcs); 289642e7aa77SAlexander Simon 289742e7aa77SAlexander Simon /* extended capabilities */ 289842e7aa77SAlexander Simon pos += sizeof(__le16); 289942e7aa77SAlexander Simon 290042e7aa77SAlexander Simon /* BF capabilities */ 290142e7aa77SAlexander Simon pos += sizeof(__le32); 290242e7aa77SAlexander Simon 290342e7aa77SAlexander Simon /* antenna selection */ 290442e7aa77SAlexander Simon pos += sizeof(u8); 290542e7aa77SAlexander Simon 290642e7aa77SAlexander Simon return pos; 290742e7aa77SAlexander Simon } 290842e7aa77SAlexander Simon 2909ba0afa2fSMahesh Palivela u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap, 2910ba0afa2fSMahesh Palivela u32 cap) 2911ba0afa2fSMahesh Palivela { 2912ba0afa2fSMahesh Palivela __le32 tmp; 2913ba0afa2fSMahesh Palivela 2914ba0afa2fSMahesh Palivela *pos++ = WLAN_EID_VHT_CAPABILITY; 2915d4950281SMahesh Palivela *pos++ = sizeof(struct ieee80211_vht_cap); 2916d4950281SMahesh Palivela memset(pos, 0, sizeof(struct ieee80211_vht_cap)); 2917ba0afa2fSMahesh Palivela 2918ba0afa2fSMahesh Palivela /* capability flags */ 2919ba0afa2fSMahesh Palivela tmp = cpu_to_le32(cap); 2920ba0afa2fSMahesh Palivela memcpy(pos, &tmp, sizeof(u32)); 2921ba0afa2fSMahesh Palivela pos += sizeof(u32); 2922ba0afa2fSMahesh Palivela 2923ba0afa2fSMahesh Palivela /* VHT MCS set */ 2924ba0afa2fSMahesh Palivela memcpy(pos, &vht_cap->vht_mcs, sizeof(vht_cap->vht_mcs)); 2925ba0afa2fSMahesh Palivela pos += sizeof(vht_cap->vht_mcs); 2926ba0afa2fSMahesh Palivela 2927ba0afa2fSMahesh Palivela return pos; 2928ba0afa2fSMahesh Palivela } 2929ba0afa2fSMahesh Palivela 293060ad72daSSven Eckelmann u8 ieee80211_ie_len_he_cap(struct ieee80211_sub_if_data *sdata, u8 iftype) 293160ad72daSSven Eckelmann { 293260ad72daSSven Eckelmann const struct ieee80211_sta_he_cap *he_cap; 293360ad72daSSven Eckelmann struct ieee80211_supported_band *sband; 293460ad72daSSven Eckelmann u8 n; 293560ad72daSSven Eckelmann 293660ad72daSSven Eckelmann sband = ieee80211_get_sband(sdata); 293760ad72daSSven Eckelmann if (!sband) 293860ad72daSSven Eckelmann return 0; 293960ad72daSSven Eckelmann 294060ad72daSSven Eckelmann he_cap = ieee80211_get_he_iftype_cap(sband, iftype); 294160ad72daSSven Eckelmann if (!he_cap) 294260ad72daSSven Eckelmann return 0; 294360ad72daSSven Eckelmann 294460ad72daSSven Eckelmann n = ieee80211_he_mcs_nss_size(&he_cap->he_cap_elem); 294560ad72daSSven Eckelmann return 2 + 1 + 294660ad72daSSven Eckelmann sizeof(he_cap->he_cap_elem) + n + 294760ad72daSSven Eckelmann ieee80211_he_ppe_size(he_cap->ppe_thres[0], 294860ad72daSSven Eckelmann he_cap->he_cap_elem.phy_cap_info); 294960ad72daSSven Eckelmann } 295060ad72daSSven Eckelmann 2951ba323e29SJohannes Berg u8 *ieee80211_ie_build_he_cap(ieee80211_conn_flags_t disable_flags, u8 *pos, 295241cbb0f5SLuca Coelho const struct ieee80211_sta_he_cap *he_cap, 295341cbb0f5SLuca Coelho u8 *end) 295441cbb0f5SLuca Coelho { 29551f2c1044SJohannes Berg struct ieee80211_he_cap_elem elem; 295641cbb0f5SLuca Coelho u8 n; 295741cbb0f5SLuca Coelho u8 ie_len; 295841cbb0f5SLuca Coelho u8 *orig_pos = pos; 295941cbb0f5SLuca Coelho 296041cbb0f5SLuca Coelho /* Make sure we have place for the IE */ 296141cbb0f5SLuca Coelho /* 296241cbb0f5SLuca Coelho * TODO: the 1 added is because this temporarily is under the EXTENSION 296341cbb0f5SLuca Coelho * IE. Get rid of it when it moves. 296441cbb0f5SLuca Coelho */ 296541cbb0f5SLuca Coelho if (!he_cap) 296641cbb0f5SLuca Coelho return orig_pos; 296741cbb0f5SLuca Coelho 29681f2c1044SJohannes Berg /* modify on stack first to calculate 'n' and 'ie_len' correctly */ 29691f2c1044SJohannes Berg elem = he_cap->he_cap_elem; 29701f2c1044SJohannes Berg 2971ba323e29SJohannes Berg if (disable_flags & IEEE80211_CONN_DISABLE_40MHZ) 29721f2c1044SJohannes Berg elem.phy_cap_info[0] &= 29731f2c1044SJohannes Berg ~(IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G | 29741f2c1044SJohannes Berg IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G); 29751f2c1044SJohannes Berg 2976ba323e29SJohannes Berg if (disable_flags & IEEE80211_CONN_DISABLE_160MHZ) 29771f2c1044SJohannes Berg elem.phy_cap_info[0] &= 29781f2c1044SJohannes Berg ~IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G; 29791f2c1044SJohannes Berg 2980ba323e29SJohannes Berg if (disable_flags & IEEE80211_CONN_DISABLE_80P80MHZ) 29811f2c1044SJohannes Berg elem.phy_cap_info[0] &= 29821f2c1044SJohannes Berg ~IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G; 29831f2c1044SJohannes Berg 29841f2c1044SJohannes Berg n = ieee80211_he_mcs_nss_size(&elem); 298541cbb0f5SLuca Coelho ie_len = 2 + 1 + 298641cbb0f5SLuca Coelho sizeof(he_cap->he_cap_elem) + n + 298741cbb0f5SLuca Coelho ieee80211_he_ppe_size(he_cap->ppe_thres[0], 298841cbb0f5SLuca Coelho he_cap->he_cap_elem.phy_cap_info); 298941cbb0f5SLuca Coelho 299041cbb0f5SLuca Coelho if ((end - pos) < ie_len) 299141cbb0f5SLuca Coelho return orig_pos; 299241cbb0f5SLuca Coelho 299341cbb0f5SLuca Coelho *pos++ = WLAN_EID_EXTENSION; 299441cbb0f5SLuca Coelho pos++; /* We'll set the size later below */ 299541cbb0f5SLuca Coelho *pos++ = WLAN_EID_EXT_HE_CAPABILITY; 299641cbb0f5SLuca Coelho 299741cbb0f5SLuca Coelho /* Fixed data */ 29981f2c1044SJohannes Berg memcpy(pos, &elem, sizeof(elem)); 29991f2c1044SJohannes Berg pos += sizeof(elem); 300041cbb0f5SLuca Coelho 300141cbb0f5SLuca Coelho memcpy(pos, &he_cap->he_mcs_nss_supp, n); 300241cbb0f5SLuca Coelho pos += n; 300341cbb0f5SLuca Coelho 300441cbb0f5SLuca Coelho /* Check if PPE Threshold should be present */ 300541cbb0f5SLuca Coelho if ((he_cap->he_cap_elem.phy_cap_info[6] & 300641cbb0f5SLuca Coelho IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) == 0) 300741cbb0f5SLuca Coelho goto end; 300841cbb0f5SLuca Coelho 300941cbb0f5SLuca Coelho /* 301041cbb0f5SLuca Coelho * Calculate how many PPET16/PPET8 pairs are to come. Algorithm: 301141cbb0f5SLuca Coelho * (NSS_M1 + 1) x (num of 1 bits in RU_INDEX_BITMASK) 301241cbb0f5SLuca Coelho */ 301341cbb0f5SLuca Coelho n = hweight8(he_cap->ppe_thres[0] & 301441cbb0f5SLuca Coelho IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK); 301541cbb0f5SLuca Coelho n *= (1 + ((he_cap->ppe_thres[0] & IEEE80211_PPE_THRES_NSS_MASK) >> 301641cbb0f5SLuca Coelho IEEE80211_PPE_THRES_NSS_POS)); 301741cbb0f5SLuca Coelho 301841cbb0f5SLuca Coelho /* 301941cbb0f5SLuca Coelho * Each pair is 6 bits, and we need to add the 7 "header" bits to the 302041cbb0f5SLuca Coelho * total size. 302141cbb0f5SLuca Coelho */ 302241cbb0f5SLuca Coelho n = (n * IEEE80211_PPE_THRES_INFO_PPET_SIZE * 2) + 7; 302341cbb0f5SLuca Coelho n = DIV_ROUND_UP(n, 8); 302441cbb0f5SLuca Coelho 302541cbb0f5SLuca Coelho /* Copy PPE Thresholds */ 302641cbb0f5SLuca Coelho memcpy(pos, &he_cap->ppe_thres, n); 302741cbb0f5SLuca Coelho pos += n; 302841cbb0f5SLuca Coelho 302941cbb0f5SLuca Coelho end: 303041cbb0f5SLuca Coelho orig_pos[1] = (pos - orig_pos) - 2; 303141cbb0f5SLuca Coelho return pos; 303241cbb0f5SLuca Coelho } 303341cbb0f5SLuca Coelho 303424a2042cSRajkumar Manoharan void ieee80211_ie_build_he_6ghz_cap(struct ieee80211_sub_if_data *sdata, 303524a2042cSRajkumar Manoharan struct sk_buff *skb) 303624a2042cSRajkumar Manoharan { 303724a2042cSRajkumar Manoharan struct ieee80211_supported_band *sband; 303824a2042cSRajkumar Manoharan const struct ieee80211_sband_iftype_data *iftd; 303924a2042cSRajkumar Manoharan enum nl80211_iftype iftype = ieee80211_vif_type_p2p(&sdata->vif); 304024a2042cSRajkumar Manoharan u8 *pos; 304124a2042cSRajkumar Manoharan u16 cap; 304224a2042cSRajkumar Manoharan 304365be6aa3SJohannes Berg if (!cfg80211_any_usable_channels(sdata->local->hw.wiphy, 304465be6aa3SJohannes Berg BIT(NL80211_BAND_6GHZ), 304565be6aa3SJohannes Berg IEEE80211_CHAN_NO_HE)) 304624a2042cSRajkumar Manoharan return; 304724a2042cSRajkumar Manoharan 304865be6aa3SJohannes Berg sband = sdata->local->hw.wiphy->bands[NL80211_BAND_6GHZ]; 304965be6aa3SJohannes Berg 305024a2042cSRajkumar Manoharan iftd = ieee80211_get_sband_iftype_data(sband, iftype); 305165be6aa3SJohannes Berg if (!iftd) 305224a2042cSRajkumar Manoharan return; 305324a2042cSRajkumar Manoharan 305465ad3ef9SRajkumar Manoharan /* Check for device HE 6 GHz capability before adding element */ 305565ad3ef9SRajkumar Manoharan if (!iftd->he_6ghz_capa.capa) 305665ad3ef9SRajkumar Manoharan return; 305765ad3ef9SRajkumar Manoharan 305824a2042cSRajkumar Manoharan cap = le16_to_cpu(iftd->he_6ghz_capa.capa); 305924a2042cSRajkumar Manoharan cap &= ~IEEE80211_HE_6GHZ_CAP_SM_PS; 306024a2042cSRajkumar Manoharan 3061bfd8403aSJohannes Berg switch (sdata->deflink.smps_mode) { 306224a2042cSRajkumar Manoharan case IEEE80211_SMPS_AUTOMATIC: 306324a2042cSRajkumar Manoharan case IEEE80211_SMPS_NUM_MODES: 306424a2042cSRajkumar Manoharan WARN_ON(1); 3065fc0561dcSGustavo A. R. Silva fallthrough; 306624a2042cSRajkumar Manoharan case IEEE80211_SMPS_OFF: 306724a2042cSRajkumar Manoharan cap |= u16_encode_bits(WLAN_HT_CAP_SM_PS_DISABLED, 306824a2042cSRajkumar Manoharan IEEE80211_HE_6GHZ_CAP_SM_PS); 306924a2042cSRajkumar Manoharan break; 307024a2042cSRajkumar Manoharan case IEEE80211_SMPS_STATIC: 307124a2042cSRajkumar Manoharan cap |= u16_encode_bits(WLAN_HT_CAP_SM_PS_STATIC, 307224a2042cSRajkumar Manoharan IEEE80211_HE_6GHZ_CAP_SM_PS); 307324a2042cSRajkumar Manoharan break; 307424a2042cSRajkumar Manoharan case IEEE80211_SMPS_DYNAMIC: 307524a2042cSRajkumar Manoharan cap |= u16_encode_bits(WLAN_HT_CAP_SM_PS_DYNAMIC, 307624a2042cSRajkumar Manoharan IEEE80211_HE_6GHZ_CAP_SM_PS); 307724a2042cSRajkumar Manoharan break; 307824a2042cSRajkumar Manoharan } 307924a2042cSRajkumar Manoharan 308024a2042cSRajkumar Manoharan pos = skb_put(skb, 2 + 1 + sizeof(cap)); 30812ad2274cSIlan Peer ieee80211_write_he_6ghz_cap(pos, cpu_to_le16(cap), 30822ad2274cSIlan Peer pos + 2 + 1 + sizeof(cap)); 308324a2042cSRajkumar Manoharan } 308424a2042cSRajkumar Manoharan 3085074d46d1SJohannes Berg u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap, 30864bf88530SJohannes Berg const struct cfg80211_chan_def *chandef, 308757f255f5SArik Nemtsov u16 prot_mode, bool rifs_mode) 308842e7aa77SAlexander Simon { 3089074d46d1SJohannes Berg struct ieee80211_ht_operation *ht_oper; 309042e7aa77SAlexander Simon /* Build HT Information */ 3091074d46d1SJohannes Berg *pos++ = WLAN_EID_HT_OPERATION; 3092074d46d1SJohannes Berg *pos++ = sizeof(struct ieee80211_ht_operation); 3093074d46d1SJohannes Berg ht_oper = (struct ieee80211_ht_operation *)pos; 30944bf88530SJohannes Berg ht_oper->primary_chan = ieee80211_frequency_to_channel( 30954bf88530SJohannes Berg chandef->chan->center_freq); 30964bf88530SJohannes Berg switch (chandef->width) { 30974bf88530SJohannes Berg case NL80211_CHAN_WIDTH_160: 30984bf88530SJohannes Berg case NL80211_CHAN_WIDTH_80P80: 30994bf88530SJohannes Berg case NL80211_CHAN_WIDTH_80: 31004bf88530SJohannes Berg case NL80211_CHAN_WIDTH_40: 31014bf88530SJohannes Berg if (chandef->center_freq1 > chandef->chan->center_freq) 31024bf88530SJohannes Berg ht_oper->ht_param = IEEE80211_HT_PARAM_CHA_SEC_ABOVE; 31034bf88530SJohannes Berg else 3104074d46d1SJohannes Berg ht_oper->ht_param = IEEE80211_HT_PARAM_CHA_SEC_BELOW; 310542e7aa77SAlexander Simon break; 31065dca295dSIlan Peer case NL80211_CHAN_WIDTH_320: 31075dca295dSIlan Peer /* HT information element should not be included on 6GHz */ 31085dca295dSIlan Peer WARN_ON(1); 31095dca295dSIlan Peer return pos; 311042e7aa77SAlexander Simon default: 3111074d46d1SJohannes Berg ht_oper->ht_param = IEEE80211_HT_PARAM_CHA_SEC_NONE; 311242e7aa77SAlexander Simon break; 311342e7aa77SAlexander Simon } 3114aee286c2SThomas Pedersen if (ht_cap->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40 && 31154bf88530SJohannes Berg chandef->width != NL80211_CHAN_WIDTH_20_NOHT && 31164bf88530SJohannes Berg chandef->width != NL80211_CHAN_WIDTH_20) 3117074d46d1SJohannes Berg ht_oper->ht_param |= IEEE80211_HT_PARAM_CHAN_WIDTH_ANY; 3118ff3cc5f4SSimon Wunderlich 311957f255f5SArik Nemtsov if (rifs_mode) 312057f255f5SArik Nemtsov ht_oper->ht_param |= IEEE80211_HT_PARAM_RIFS_MODE; 312157f255f5SArik Nemtsov 3122431e3154SAshok Nagarajan ht_oper->operation_mode = cpu_to_le16(prot_mode); 3123074d46d1SJohannes Berg ht_oper->stbc_param = 0x0000; 312442e7aa77SAlexander Simon 312542e7aa77SAlexander Simon /* It seems that Basic MCS set and Supported MCS set 312642e7aa77SAlexander Simon are identical for the first 10 bytes */ 3127074d46d1SJohannes Berg memset(&ht_oper->basic_set, 0, 16); 3128074d46d1SJohannes Berg memcpy(&ht_oper->basic_set, &ht_cap->mcs, 10); 312942e7aa77SAlexander Simon 3130074d46d1SJohannes Berg return pos + sizeof(struct ieee80211_ht_operation); 313142e7aa77SAlexander Simon } 313242e7aa77SAlexander Simon 313375d627d5SSimon Wunderlich void ieee80211_ie_build_wide_bw_cs(u8 *pos, 313475d627d5SSimon Wunderlich const struct cfg80211_chan_def *chandef) 313575d627d5SSimon Wunderlich { 313675d627d5SSimon Wunderlich *pos++ = WLAN_EID_WIDE_BW_CHANNEL_SWITCH; /* EID */ 313775d627d5SSimon Wunderlich *pos++ = 3; /* IE length */ 313875d627d5SSimon Wunderlich /* New channel width */ 313975d627d5SSimon Wunderlich switch (chandef->width) { 314075d627d5SSimon Wunderlich case NL80211_CHAN_WIDTH_80: 314175d627d5SSimon Wunderlich *pos++ = IEEE80211_VHT_CHANWIDTH_80MHZ; 314275d627d5SSimon Wunderlich break; 314375d627d5SSimon Wunderlich case NL80211_CHAN_WIDTH_160: 314475d627d5SSimon Wunderlich *pos++ = IEEE80211_VHT_CHANWIDTH_160MHZ; 314575d627d5SSimon Wunderlich break; 314675d627d5SSimon Wunderlich case NL80211_CHAN_WIDTH_80P80: 314775d627d5SSimon Wunderlich *pos++ = IEEE80211_VHT_CHANWIDTH_80P80MHZ; 314875d627d5SSimon Wunderlich break; 31495dca295dSIlan Peer case NL80211_CHAN_WIDTH_320: 31505dca295dSIlan Peer /* The behavior is not defined for 320 MHz channels */ 31515dca295dSIlan Peer WARN_ON(1); 31525dca295dSIlan Peer fallthrough; 315375d627d5SSimon Wunderlich default: 315475d627d5SSimon Wunderlich *pos++ = IEEE80211_VHT_CHANWIDTH_USE_HT; 315575d627d5SSimon Wunderlich } 315675d627d5SSimon Wunderlich 315775d627d5SSimon Wunderlich /* new center frequency segment 0 */ 315875d627d5SSimon Wunderlich *pos++ = ieee80211_frequency_to_channel(chandef->center_freq1); 315975d627d5SSimon Wunderlich /* new center frequency segment 1 */ 316075d627d5SSimon Wunderlich if (chandef->center_freq2) 316175d627d5SSimon Wunderlich *pos++ = ieee80211_frequency_to_channel(chandef->center_freq2); 316275d627d5SSimon Wunderlich else 316375d627d5SSimon Wunderlich *pos++ = 0; 316475d627d5SSimon Wunderlich } 316575d627d5SSimon Wunderlich 3166fb28ec0cSArik Nemtsov u8 *ieee80211_ie_build_vht_oper(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap, 3167fb28ec0cSArik Nemtsov const struct cfg80211_chan_def *chandef) 3168fb28ec0cSArik Nemtsov { 3169fb28ec0cSArik Nemtsov struct ieee80211_vht_operation *vht_oper; 3170fb28ec0cSArik Nemtsov 3171fb28ec0cSArik Nemtsov *pos++ = WLAN_EID_VHT_OPERATION; 3172fb28ec0cSArik Nemtsov *pos++ = sizeof(struct ieee80211_vht_operation); 3173fb28ec0cSArik Nemtsov vht_oper = (struct ieee80211_vht_operation *)pos; 31742fb51c35SJohannes Berg vht_oper->center_freq_seg0_idx = ieee80211_frequency_to_channel( 3175fb28ec0cSArik Nemtsov chandef->center_freq1); 3176fb28ec0cSArik Nemtsov if (chandef->center_freq2) 31772fb51c35SJohannes Berg vht_oper->center_freq_seg1_idx = 3178fb28ec0cSArik Nemtsov ieee80211_frequency_to_channel(chandef->center_freq2); 3179f020ae40SChun-Yeow Yeoh else 31802fb51c35SJohannes Berg vht_oper->center_freq_seg1_idx = 0x00; 3181fb28ec0cSArik Nemtsov 3182fb28ec0cSArik Nemtsov switch (chandef->width) { 3183fb28ec0cSArik Nemtsov case NL80211_CHAN_WIDTH_160: 318423665aafSJouni Malinen /* 318523665aafSJouni Malinen * Convert 160 MHz channel width to new style as interop 318623665aafSJouni Malinen * workaround. 318723665aafSJouni Malinen */ 318823665aafSJouni Malinen vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_80MHZ; 31892fb51c35SJohannes Berg vht_oper->center_freq_seg1_idx = vht_oper->center_freq_seg0_idx; 319023665aafSJouni Malinen if (chandef->chan->center_freq < chandef->center_freq1) 31912fb51c35SJohannes Berg vht_oper->center_freq_seg0_idx -= 8; 319223665aafSJouni Malinen else 31932fb51c35SJohannes Berg vht_oper->center_freq_seg0_idx += 8; 3194fb28ec0cSArik Nemtsov break; 3195fb28ec0cSArik Nemtsov case NL80211_CHAN_WIDTH_80P80: 319623665aafSJouni Malinen /* 319723665aafSJouni Malinen * Convert 80+80 MHz channel width to new style as interop 319823665aafSJouni Malinen * workaround. 319923665aafSJouni Malinen */ 320023665aafSJouni Malinen vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_80MHZ; 3201fb28ec0cSArik Nemtsov break; 3202fb28ec0cSArik Nemtsov case NL80211_CHAN_WIDTH_80: 3203fb28ec0cSArik Nemtsov vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_80MHZ; 3204fb28ec0cSArik Nemtsov break; 32055dca295dSIlan Peer case NL80211_CHAN_WIDTH_320: 32065dca295dSIlan Peer /* VHT information element should not be included on 6GHz */ 32075dca295dSIlan Peer WARN_ON(1); 32085dca295dSIlan Peer return pos; 3209fb28ec0cSArik Nemtsov default: 3210fb28ec0cSArik Nemtsov vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_USE_HT; 3211fb28ec0cSArik Nemtsov break; 3212fb28ec0cSArik Nemtsov } 3213fb28ec0cSArik Nemtsov 3214fb28ec0cSArik Nemtsov /* don't require special VHT peer rates */ 3215fb28ec0cSArik Nemtsov vht_oper->basic_mcs_set = cpu_to_le16(0xffff); 3216fb28ec0cSArik Nemtsov 3217fb28ec0cSArik Nemtsov return pos + sizeof(struct ieee80211_vht_operation); 3218fb28ec0cSArik Nemtsov } 3219fb28ec0cSArik Nemtsov 3220d1b7524bSRajkumar Manoharan u8 *ieee80211_ie_build_he_oper(u8 *pos, struct cfg80211_chan_def *chandef) 322160ad72daSSven Eckelmann { 322260ad72daSSven Eckelmann struct ieee80211_he_operation *he_oper; 3223d1b7524bSRajkumar Manoharan struct ieee80211_he_6ghz_oper *he_6ghz_op; 322460ad72daSSven Eckelmann u32 he_oper_params; 3225d1b7524bSRajkumar Manoharan u8 ie_len = 1 + sizeof(struct ieee80211_he_operation); 3226d1b7524bSRajkumar Manoharan 3227d1b7524bSRajkumar Manoharan if (chandef->chan->band == NL80211_BAND_6GHZ) 3228d1b7524bSRajkumar Manoharan ie_len += sizeof(struct ieee80211_he_6ghz_oper); 322960ad72daSSven Eckelmann 323060ad72daSSven Eckelmann *pos++ = WLAN_EID_EXTENSION; 3231d1b7524bSRajkumar Manoharan *pos++ = ie_len; 323260ad72daSSven Eckelmann *pos++ = WLAN_EID_EXT_HE_OPERATION; 323360ad72daSSven Eckelmann 323460ad72daSSven Eckelmann he_oper_params = 0; 323560ad72daSSven Eckelmann he_oper_params |= u32_encode_bits(1023, /* disabled */ 323660ad72daSSven Eckelmann IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK); 323760ad72daSSven Eckelmann he_oper_params |= u32_encode_bits(1, 323860ad72daSSven Eckelmann IEEE80211_HE_OPERATION_ER_SU_DISABLE); 323960ad72daSSven Eckelmann he_oper_params |= u32_encode_bits(1, 324060ad72daSSven Eckelmann IEEE80211_HE_OPERATION_BSS_COLOR_DISABLED); 3241d1b7524bSRajkumar Manoharan if (chandef->chan->band == NL80211_BAND_6GHZ) 3242d1b7524bSRajkumar Manoharan he_oper_params |= u32_encode_bits(1, 3243d1b7524bSRajkumar Manoharan IEEE80211_HE_OPERATION_6GHZ_OP_INFO); 324460ad72daSSven Eckelmann 324560ad72daSSven Eckelmann he_oper = (struct ieee80211_he_operation *)pos; 324660ad72daSSven Eckelmann he_oper->he_oper_params = cpu_to_le32(he_oper_params); 324760ad72daSSven Eckelmann 324860ad72daSSven Eckelmann /* don't require special HE peer rates */ 324960ad72daSSven Eckelmann he_oper->he_mcs_nss_set = cpu_to_le16(0xffff); 3250d1b7524bSRajkumar Manoharan pos += sizeof(struct ieee80211_he_operation); 325160ad72daSSven Eckelmann 3252d1b7524bSRajkumar Manoharan if (chandef->chan->band != NL80211_BAND_6GHZ) 3253d1b7524bSRajkumar Manoharan goto out; 325460ad72daSSven Eckelmann 3255d1b7524bSRajkumar Manoharan /* TODO add VHT operational */ 3256d1b7524bSRajkumar Manoharan he_6ghz_op = (struct ieee80211_he_6ghz_oper *)pos; 3257d1b7524bSRajkumar Manoharan he_6ghz_op->minrate = 6; /* 6 Mbps */ 3258d1b7524bSRajkumar Manoharan he_6ghz_op->primary = 3259d1b7524bSRajkumar Manoharan ieee80211_frequency_to_channel(chandef->chan->center_freq); 3260d1b7524bSRajkumar Manoharan he_6ghz_op->ccfs0 = 3261d1b7524bSRajkumar Manoharan ieee80211_frequency_to_channel(chandef->center_freq1); 3262d1b7524bSRajkumar Manoharan if (chandef->center_freq2) 3263d1b7524bSRajkumar Manoharan he_6ghz_op->ccfs1 = 3264d1b7524bSRajkumar Manoharan ieee80211_frequency_to_channel(chandef->center_freq2); 3265d1b7524bSRajkumar Manoharan else 3266d1b7524bSRajkumar Manoharan he_6ghz_op->ccfs1 = 0; 3267d1b7524bSRajkumar Manoharan 3268d1b7524bSRajkumar Manoharan switch (chandef->width) { 32695dca295dSIlan Peer case NL80211_CHAN_WIDTH_320: 32705dca295dSIlan Peer /* 32715dca295dSIlan Peer * TODO: mesh operation is not defined over 6GHz 320 MHz 32725dca295dSIlan Peer * channels. 32735dca295dSIlan Peer */ 32745dca295dSIlan Peer WARN_ON(1); 32755dca295dSIlan Peer break; 3276d1b7524bSRajkumar Manoharan case NL80211_CHAN_WIDTH_160: 3277d1b7524bSRajkumar Manoharan /* Convert 160 MHz channel width to new style as interop 3278d1b7524bSRajkumar Manoharan * workaround. 3279d1b7524bSRajkumar Manoharan */ 3280d1b7524bSRajkumar Manoharan he_6ghz_op->control = 3281d1b7524bSRajkumar Manoharan IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_160MHZ; 3282d1b7524bSRajkumar Manoharan he_6ghz_op->ccfs1 = he_6ghz_op->ccfs0; 3283d1b7524bSRajkumar Manoharan if (chandef->chan->center_freq < chandef->center_freq1) 3284d1b7524bSRajkumar Manoharan he_6ghz_op->ccfs0 -= 8; 3285d1b7524bSRajkumar Manoharan else 3286d1b7524bSRajkumar Manoharan he_6ghz_op->ccfs0 += 8; 3287d1b7524bSRajkumar Manoharan fallthrough; 3288d1b7524bSRajkumar Manoharan case NL80211_CHAN_WIDTH_80P80: 3289d1b7524bSRajkumar Manoharan he_6ghz_op->control = 3290d1b7524bSRajkumar Manoharan IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_160MHZ; 3291d1b7524bSRajkumar Manoharan break; 3292d1b7524bSRajkumar Manoharan case NL80211_CHAN_WIDTH_80: 3293d1b7524bSRajkumar Manoharan he_6ghz_op->control = 3294d1b7524bSRajkumar Manoharan IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_80MHZ; 3295d1b7524bSRajkumar Manoharan break; 3296d1b7524bSRajkumar Manoharan case NL80211_CHAN_WIDTH_40: 3297d1b7524bSRajkumar Manoharan he_6ghz_op->control = 3298d1b7524bSRajkumar Manoharan IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_40MHZ; 3299d1b7524bSRajkumar Manoharan break; 3300d1b7524bSRajkumar Manoharan default: 3301d1b7524bSRajkumar Manoharan he_6ghz_op->control = 3302d1b7524bSRajkumar Manoharan IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_20MHZ; 3303d1b7524bSRajkumar Manoharan break; 3304d1b7524bSRajkumar Manoharan } 3305d1b7524bSRajkumar Manoharan 3306d1b7524bSRajkumar Manoharan pos += sizeof(struct ieee80211_he_6ghz_oper); 3307d1b7524bSRajkumar Manoharan 3308d1b7524bSRajkumar Manoharan out: 3309d1b7524bSRajkumar Manoharan return pos; 331060ad72daSSven Eckelmann } 331160ad72daSSven Eckelmann 33128ac3c704SJohannes Berg bool ieee80211_chandef_ht_oper(const struct ieee80211_ht_operation *ht_oper, 33134bf88530SJohannes Berg struct cfg80211_chan_def *chandef) 331442e7aa77SAlexander Simon { 331542e7aa77SAlexander Simon enum nl80211_channel_type channel_type; 331642e7aa77SAlexander Simon 33178ac3c704SJohannes Berg if (!ht_oper) 33188ac3c704SJohannes Berg return false; 331942e7aa77SAlexander Simon 3320074d46d1SJohannes Berg switch (ht_oper->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET) { 332142e7aa77SAlexander Simon case IEEE80211_HT_PARAM_CHA_SEC_NONE: 332242e7aa77SAlexander Simon channel_type = NL80211_CHAN_HT20; 332342e7aa77SAlexander Simon break; 332442e7aa77SAlexander Simon case IEEE80211_HT_PARAM_CHA_SEC_ABOVE: 332542e7aa77SAlexander Simon channel_type = NL80211_CHAN_HT40PLUS; 332642e7aa77SAlexander Simon break; 332742e7aa77SAlexander Simon case IEEE80211_HT_PARAM_CHA_SEC_BELOW: 332842e7aa77SAlexander Simon channel_type = NL80211_CHAN_HT40MINUS; 332942e7aa77SAlexander Simon break; 333042e7aa77SAlexander Simon default: 33318ac3c704SJohannes Berg return false; 333242e7aa77SAlexander Simon } 333342e7aa77SAlexander Simon 33348ac3c704SJohannes Berg cfg80211_chandef_create(chandef, chandef->chan, channel_type); 33358ac3c704SJohannes Berg return true; 333642e7aa77SAlexander Simon } 333742e7aa77SAlexander Simon 33382a333a0dSJohannes Berg bool ieee80211_chandef_vht_oper(struct ieee80211_hw *hw, u32 vht_cap_info, 33397eb26df2SJohannes Berg const struct ieee80211_vht_operation *oper, 33407eb26df2SJohannes Berg const struct ieee80211_ht_operation *htop, 3341abcff6efSJanusz.Dziedzic@tieto.com struct cfg80211_chan_def *chandef) 3342abcff6efSJanusz.Dziedzic@tieto.com { 33438ac3c704SJohannes Berg struct cfg80211_chan_def new = *chandef; 33447eb26df2SJohannes Berg int cf0, cf1; 33457eb26df2SJohannes Berg int ccfs0, ccfs1, ccfs2; 33467eb26df2SJohannes Berg int ccf0, ccf1; 334733181ea7SShay Bar u32 vht_cap; 334833181ea7SShay Bar bool support_80_80 = false; 334933181ea7SShay Bar bool support_160 = false; 33502a333a0dSJohannes Berg u8 ext_nss_bw_supp = u32_get_bits(vht_cap_info, 33512a333a0dSJohannes Berg IEEE80211_VHT_CAP_EXT_NSS_BW_MASK); 33522a333a0dSJohannes Berg u8 supp_chwidth = u32_get_bits(vht_cap_info, 33532a333a0dSJohannes Berg IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK); 3354abcff6efSJanusz.Dziedzic@tieto.com 33557eb26df2SJohannes Berg if (!oper || !htop) 33568ac3c704SJohannes Berg return false; 33578ac3c704SJohannes Berg 335833181ea7SShay Bar vht_cap = hw->wiphy->bands[chandef->chan->band]->vht_cap.cap; 335933181ea7SShay Bar support_160 = (vht_cap & (IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK | 336033181ea7SShay Bar IEEE80211_VHT_CAP_EXT_NSS_BW_MASK)); 336133181ea7SShay Bar support_80_80 = ((vht_cap & 336233181ea7SShay Bar IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ) || 336333181ea7SShay Bar (vht_cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ && 336433181ea7SShay Bar vht_cap & IEEE80211_VHT_CAP_EXT_NSS_BW_MASK) || 336533181ea7SShay Bar ((vht_cap & IEEE80211_VHT_CAP_EXT_NSS_BW_MASK) >> 336633181ea7SShay Bar IEEE80211_VHT_CAP_EXT_NSS_BW_SHIFT > 1)); 33677eb26df2SJohannes Berg ccfs0 = oper->center_freq_seg0_idx; 33687eb26df2SJohannes Berg ccfs1 = oper->center_freq_seg1_idx; 33697eb26df2SJohannes Berg ccfs2 = (le16_to_cpu(htop->operation_mode) & 33707eb26df2SJohannes Berg IEEE80211_HT_OP_MODE_CCFS2_MASK) 33717eb26df2SJohannes Berg >> IEEE80211_HT_OP_MODE_CCFS2_SHIFT; 33727eb26df2SJohannes Berg 33737eb26df2SJohannes Berg ccf0 = ccfs0; 33742a333a0dSJohannes Berg 33752a333a0dSJohannes Berg /* if not supported, parse as though we didn't understand it */ 33762a333a0dSJohannes Berg if (!ieee80211_hw_check(hw, SUPPORTS_VHT_EXT_NSS_BW)) 33772a333a0dSJohannes Berg ext_nss_bw_supp = 0; 33782a333a0dSJohannes Berg 33792a333a0dSJohannes Berg /* 33802a333a0dSJohannes Berg * Cf. IEEE 802.11 Table 9-250 33812a333a0dSJohannes Berg * 33822a333a0dSJohannes Berg * We really just consider that because it's inefficient to connect 33832a333a0dSJohannes Berg * at a higher bandwidth than we'll actually be able to use. 33842a333a0dSJohannes Berg */ 33852a333a0dSJohannes Berg switch ((supp_chwidth << 4) | ext_nss_bw_supp) { 33862a333a0dSJohannes Berg default: 33872a333a0dSJohannes Berg case 0x00: 33882a333a0dSJohannes Berg ccf1 = 0; 33892a333a0dSJohannes Berg support_160 = false; 33902a333a0dSJohannes Berg support_80_80 = false; 33912a333a0dSJohannes Berg break; 33922a333a0dSJohannes Berg case 0x01: 33932a333a0dSJohannes Berg support_80_80 = false; 3394fc0561dcSGustavo A. R. Silva fallthrough; 33952a333a0dSJohannes Berg case 0x02: 33962a333a0dSJohannes Berg case 0x03: 33977eb26df2SJohannes Berg ccf1 = ccfs2; 33982a333a0dSJohannes Berg break; 33992a333a0dSJohannes Berg case 0x10: 34002a333a0dSJohannes Berg ccf1 = ccfs1; 34012a333a0dSJohannes Berg break; 34022a333a0dSJohannes Berg case 0x11: 34032a333a0dSJohannes Berg case 0x12: 34042a333a0dSJohannes Berg if (!ccfs1) 34052a333a0dSJohannes Berg ccf1 = ccfs2; 34062a333a0dSJohannes Berg else 34072a333a0dSJohannes Berg ccf1 = ccfs1; 34082a333a0dSJohannes Berg break; 34092a333a0dSJohannes Berg case 0x13: 34102a333a0dSJohannes Berg case 0x20: 34112a333a0dSJohannes Berg case 0x23: 34122a333a0dSJohannes Berg ccf1 = ccfs1; 34132a333a0dSJohannes Berg break; 34142a333a0dSJohannes Berg } 34157eb26df2SJohannes Berg 34167eb26df2SJohannes Berg cf0 = ieee80211_channel_to_frequency(ccf0, chandef->chan->band); 34177eb26df2SJohannes Berg cf1 = ieee80211_channel_to_frequency(ccf1, chandef->chan->band); 3418abcff6efSJanusz.Dziedzic@tieto.com 3419abcff6efSJanusz.Dziedzic@tieto.com switch (oper->chan_width) { 3420abcff6efSJanusz.Dziedzic@tieto.com case IEEE80211_VHT_CHANWIDTH_USE_HT: 34217eb26df2SJohannes Berg /* just use HT information directly */ 3422abcff6efSJanusz.Dziedzic@tieto.com break; 3423abcff6efSJanusz.Dziedzic@tieto.com case IEEE80211_VHT_CHANWIDTH_80MHZ: 34248ac3c704SJohannes Berg new.width = NL80211_CHAN_WIDTH_80; 34257eb26df2SJohannes Berg new.center_freq1 = cf0; 342623665aafSJouni Malinen /* If needed, adjust based on the newer interop workaround. */ 34277eb26df2SJohannes Berg if (ccf1) { 342823665aafSJouni Malinen unsigned int diff; 342923665aafSJouni Malinen 34307eb26df2SJohannes Berg diff = abs(ccf1 - ccf0); 343133181ea7SShay Bar if ((diff == 8) && support_160) { 343223665aafSJouni Malinen new.width = NL80211_CHAN_WIDTH_160; 34337eb26df2SJohannes Berg new.center_freq1 = cf1; 343433181ea7SShay Bar } else if ((diff > 8) && support_80_80) { 343523665aafSJouni Malinen new.width = NL80211_CHAN_WIDTH_80P80; 34367eb26df2SJohannes Berg new.center_freq2 = cf1; 343723665aafSJouni Malinen } 343823665aafSJouni Malinen } 3439abcff6efSJanusz.Dziedzic@tieto.com break; 3440abcff6efSJanusz.Dziedzic@tieto.com case IEEE80211_VHT_CHANWIDTH_160MHZ: 34417eb26df2SJohannes Berg /* deprecated encoding */ 34428ac3c704SJohannes Berg new.width = NL80211_CHAN_WIDTH_160; 34437eb26df2SJohannes Berg new.center_freq1 = cf0; 3444abcff6efSJanusz.Dziedzic@tieto.com break; 3445abcff6efSJanusz.Dziedzic@tieto.com case IEEE80211_VHT_CHANWIDTH_80P80MHZ: 34467eb26df2SJohannes Berg /* deprecated encoding */ 34478ac3c704SJohannes Berg new.width = NL80211_CHAN_WIDTH_80P80; 34487eb26df2SJohannes Berg new.center_freq1 = cf0; 34497eb26df2SJohannes Berg new.center_freq2 = cf1; 3450abcff6efSJanusz.Dziedzic@tieto.com break; 3451abcff6efSJanusz.Dziedzic@tieto.com default: 34528ac3c704SJohannes Berg return false; 3453abcff6efSJanusz.Dziedzic@tieto.com } 3454abcff6efSJanusz.Dziedzic@tieto.com 34558ac3c704SJohannes Berg if (!cfg80211_chandef_valid(&new)) 34568ac3c704SJohannes Berg return false; 34578ac3c704SJohannes Berg 34588ac3c704SJohannes Berg *chandef = new; 34598ac3c704SJohannes Berg return true; 3460abcff6efSJanusz.Dziedzic@tieto.com } 3461abcff6efSJanusz.Dziedzic@tieto.com 34621e0b3b0bSIlan Peer void ieee80211_chandef_eht_oper(struct ieee80211_sub_if_data *sdata, 34631e0b3b0bSIlan Peer const struct ieee80211_eht_operation *eht_oper, 34641e0b3b0bSIlan Peer bool support_160, bool support_320, 34651e0b3b0bSIlan Peer struct cfg80211_chan_def *chandef) 34661e0b3b0bSIlan Peer { 34671e0b3b0bSIlan Peer struct ieee80211_eht_operation_info *info = (void *)eht_oper->optional; 34681e0b3b0bSIlan Peer 34691e0b3b0bSIlan Peer chandef->center_freq1 = 34701e0b3b0bSIlan Peer ieee80211_channel_to_frequency(info->ccfs0, 34711e0b3b0bSIlan Peer chandef->chan->band); 34721e0b3b0bSIlan Peer 34731e0b3b0bSIlan Peer switch (u8_get_bits(info->control, 34741e0b3b0bSIlan Peer IEEE80211_EHT_OPER_CHAN_WIDTH)) { 34751e0b3b0bSIlan Peer case IEEE80211_EHT_OPER_CHAN_WIDTH_20MHZ: 34761e0b3b0bSIlan Peer chandef->width = NL80211_CHAN_WIDTH_20; 34771e0b3b0bSIlan Peer break; 34781e0b3b0bSIlan Peer case IEEE80211_EHT_OPER_CHAN_WIDTH_40MHZ: 34791e0b3b0bSIlan Peer chandef->width = NL80211_CHAN_WIDTH_40; 34801e0b3b0bSIlan Peer break; 34811e0b3b0bSIlan Peer case IEEE80211_EHT_OPER_CHAN_WIDTH_80MHZ: 34821e0b3b0bSIlan Peer chandef->width = NL80211_CHAN_WIDTH_80; 34831e0b3b0bSIlan Peer break; 34841e0b3b0bSIlan Peer case IEEE80211_EHT_OPER_CHAN_WIDTH_160MHZ: 34851e0b3b0bSIlan Peer if (support_160) { 34861e0b3b0bSIlan Peer chandef->width = NL80211_CHAN_WIDTH_160; 34871e0b3b0bSIlan Peer chandef->center_freq1 = 34881e0b3b0bSIlan Peer ieee80211_channel_to_frequency(info->ccfs1, 34891e0b3b0bSIlan Peer chandef->chan->band); 34901e0b3b0bSIlan Peer } else { 34911e0b3b0bSIlan Peer chandef->width = NL80211_CHAN_WIDTH_80; 34921e0b3b0bSIlan Peer } 34931e0b3b0bSIlan Peer break; 34941e0b3b0bSIlan Peer case IEEE80211_EHT_OPER_CHAN_WIDTH_320MHZ: 34951e0b3b0bSIlan Peer if (support_320) { 34961e0b3b0bSIlan Peer chandef->width = NL80211_CHAN_WIDTH_320; 34971e0b3b0bSIlan Peer chandef->center_freq1 = 34981e0b3b0bSIlan Peer ieee80211_channel_to_frequency(info->ccfs1, 34991e0b3b0bSIlan Peer chandef->chan->band); 35001e0b3b0bSIlan Peer } else if (support_160) { 35011e0b3b0bSIlan Peer chandef->width = NL80211_CHAN_WIDTH_160; 35021e0b3b0bSIlan Peer } else { 35031e0b3b0bSIlan Peer chandef->width = NL80211_CHAN_WIDTH_80; 35041e0b3b0bSIlan Peer 35051e0b3b0bSIlan Peer if (chandef->center_freq1 > chandef->chan->center_freq) 35061e0b3b0bSIlan Peer chandef->center_freq1 -= 40; 35071e0b3b0bSIlan Peer else 35081e0b3b0bSIlan Peer chandef->center_freq1 += 40; 35091e0b3b0bSIlan Peer } 35101e0b3b0bSIlan Peer break; 35111e0b3b0bSIlan Peer } 35121e0b3b0bSIlan Peer } 35131e0b3b0bSIlan Peer 351457fa5e85SJohannes Berg bool ieee80211_chandef_he_6ghz_oper(struct ieee80211_sub_if_data *sdata, 351557fa5e85SJohannes Berg const struct ieee80211_he_operation *he_oper, 35165dca295dSIlan Peer const struct ieee80211_eht_operation *eht_oper, 351757fa5e85SJohannes Berg struct cfg80211_chan_def *chandef) 351857fa5e85SJohannes Berg { 351957fa5e85SJohannes Berg struct ieee80211_local *local = sdata->local; 352057fa5e85SJohannes Berg struct ieee80211_supported_band *sband; 352157fa5e85SJohannes Berg enum nl80211_iftype iftype = ieee80211_vif_type_p2p(&sdata->vif); 352257fa5e85SJohannes Berg const struct ieee80211_sta_he_cap *he_cap; 35235dca295dSIlan Peer const struct ieee80211_sta_eht_cap *eht_cap; 352457fa5e85SJohannes Berg struct cfg80211_chan_def he_chandef = *chandef; 352557fa5e85SJohannes Berg const struct ieee80211_he_6ghz_oper *he_6ghz_oper; 3526cb751b7aSWen Gong struct ieee80211_bss_conf *bss_conf = &sdata->vif.bss_conf; 35275dca295dSIlan Peer bool support_80_80, support_160, support_320; 35285dca295dSIlan Peer u8 he_phy_cap, eht_phy_cap; 352957fa5e85SJohannes Berg u32 freq; 353057fa5e85SJohannes Berg 353157fa5e85SJohannes Berg if (chandef->chan->band != NL80211_BAND_6GHZ) 353257fa5e85SJohannes Berg return true; 353357fa5e85SJohannes Berg 353457fa5e85SJohannes Berg sband = local->hw.wiphy->bands[NL80211_BAND_6GHZ]; 353557fa5e85SJohannes Berg 353657fa5e85SJohannes Berg he_cap = ieee80211_get_he_iftype_cap(sband, iftype); 353757fa5e85SJohannes Berg if (!he_cap) { 353857fa5e85SJohannes Berg sdata_info(sdata, "Missing iftype sband data/HE cap"); 353957fa5e85SJohannes Berg return false; 354057fa5e85SJohannes Berg } 354157fa5e85SJohannes Berg 354257fa5e85SJohannes Berg he_phy_cap = he_cap->he_cap_elem.phy_cap_info[0]; 354357fa5e85SJohannes Berg support_160 = 354457fa5e85SJohannes Berg he_phy_cap & 354557fa5e85SJohannes Berg IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G; 354657fa5e85SJohannes Berg support_80_80 = 354757fa5e85SJohannes Berg he_phy_cap & 354857fa5e85SJohannes Berg IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G; 354957fa5e85SJohannes Berg 355057fa5e85SJohannes Berg if (!he_oper) { 355157fa5e85SJohannes Berg sdata_info(sdata, 355257fa5e85SJohannes Berg "HE is not advertised on (on %d MHz), expect issues\n", 355357fa5e85SJohannes Berg chandef->chan->center_freq); 355457fa5e85SJohannes Berg return false; 355557fa5e85SJohannes Berg } 355657fa5e85SJohannes Berg 35575dca295dSIlan Peer eht_cap = ieee80211_get_eht_iftype_cap(sband, iftype); 35585dca295dSIlan Peer if (!eht_cap) { 35595dca295dSIlan Peer sdata_info(sdata, "Missing iftype sband data/EHT cap"); 35605dca295dSIlan Peer eht_oper = NULL; 35615dca295dSIlan Peer } 35625dca295dSIlan Peer 356357fa5e85SJohannes Berg he_6ghz_oper = ieee80211_he_6ghz_oper(he_oper); 356457fa5e85SJohannes Berg 356557fa5e85SJohannes Berg if (!he_6ghz_oper) { 356657fa5e85SJohannes Berg sdata_info(sdata, 356757fa5e85SJohannes Berg "HE 6GHz operation missing (on %d MHz), expect issues\n", 356857fa5e85SJohannes Berg chandef->chan->center_freq); 356957fa5e85SJohannes Berg return false; 357057fa5e85SJohannes Berg } 357157fa5e85SJohannes Berg 35725dca295dSIlan Peer /* 35735dca295dSIlan Peer * The EHT operation IE does not contain the primary channel so the 35745dca295dSIlan Peer * primary channel frequency should be taken from the 6 GHz operation 35755dca295dSIlan Peer * information. 35765dca295dSIlan Peer */ 357757fa5e85SJohannes Berg freq = ieee80211_channel_to_frequency(he_6ghz_oper->primary, 357857fa5e85SJohannes Berg NL80211_BAND_6GHZ); 357957fa5e85SJohannes Berg he_chandef.chan = ieee80211_get_channel(sdata->local->hw.wiphy, freq); 358057fa5e85SJohannes Berg 358157fa5e85SJohannes Berg switch (u8_get_bits(he_6ghz_oper->control, 3582cb751b7aSWen Gong IEEE80211_HE_6GHZ_OPER_CTRL_REG_INFO)) { 3583cb751b7aSWen Gong case IEEE80211_6GHZ_CTRL_REG_LPI_AP: 3584cb751b7aSWen Gong bss_conf->power_type = IEEE80211_REG_LPI_AP; 3585cb751b7aSWen Gong break; 3586cb751b7aSWen Gong case IEEE80211_6GHZ_CTRL_REG_SP_AP: 3587cb751b7aSWen Gong bss_conf->power_type = IEEE80211_REG_SP_AP; 3588cb751b7aSWen Gong break; 3589cb751b7aSWen Gong default: 3590cb751b7aSWen Gong bss_conf->power_type = IEEE80211_REG_UNSET_AP; 3591cb751b7aSWen Gong break; 3592cb751b7aSWen Gong } 3593cb751b7aSWen Gong 35941e0b3b0bSIlan Peer if (!eht_oper || 35951e0b3b0bSIlan Peer !(eht_oper->params & IEEE80211_EHT_OPER_INFO_PRESENT)) { 3596cb751b7aSWen Gong switch (u8_get_bits(he_6ghz_oper->control, 359757fa5e85SJohannes Berg IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH)) { 359857fa5e85SJohannes Berg case IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_20MHZ: 359957fa5e85SJohannes Berg he_chandef.width = NL80211_CHAN_WIDTH_20; 360057fa5e85SJohannes Berg break; 360157fa5e85SJohannes Berg case IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_40MHZ: 360257fa5e85SJohannes Berg he_chandef.width = NL80211_CHAN_WIDTH_40; 360357fa5e85SJohannes Berg break; 360457fa5e85SJohannes Berg case IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_80MHZ: 360557fa5e85SJohannes Berg he_chandef.width = NL80211_CHAN_WIDTH_80; 360657fa5e85SJohannes Berg break; 360757fa5e85SJohannes Berg case IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_160MHZ: 360857fa5e85SJohannes Berg he_chandef.width = NL80211_CHAN_WIDTH_80; 360957fa5e85SJohannes Berg if (!he_6ghz_oper->ccfs1) 361057fa5e85SJohannes Berg break; 361157fa5e85SJohannes Berg if (abs(he_6ghz_oper->ccfs1 - he_6ghz_oper->ccfs0) == 8) { 361257fa5e85SJohannes Berg if (support_160) 361357fa5e85SJohannes Berg he_chandef.width = NL80211_CHAN_WIDTH_160; 361457fa5e85SJohannes Berg } else { 361557fa5e85SJohannes Berg if (support_80_80) 361657fa5e85SJohannes Berg he_chandef.width = NL80211_CHAN_WIDTH_80P80; 361757fa5e85SJohannes Berg } 361857fa5e85SJohannes Berg break; 361957fa5e85SJohannes Berg } 362057fa5e85SJohannes Berg 362157fa5e85SJohannes Berg if (he_chandef.width == NL80211_CHAN_WIDTH_160) { 362257fa5e85SJohannes Berg he_chandef.center_freq1 = 362357fa5e85SJohannes Berg ieee80211_channel_to_frequency(he_6ghz_oper->ccfs1, 362457fa5e85SJohannes Berg NL80211_BAND_6GHZ); 362557fa5e85SJohannes Berg } else { 362657fa5e85SJohannes Berg he_chandef.center_freq1 = 362757fa5e85SJohannes Berg ieee80211_channel_to_frequency(he_6ghz_oper->ccfs0, 362857fa5e85SJohannes Berg NL80211_BAND_6GHZ); 362975bcbd69SJohn Crispin if (support_80_80 || support_160) 363057fa5e85SJohannes Berg he_chandef.center_freq2 = 363157fa5e85SJohannes Berg ieee80211_channel_to_frequency(he_6ghz_oper->ccfs1, 363257fa5e85SJohannes Berg NL80211_BAND_6GHZ); 363357fa5e85SJohannes Berg } 36345dca295dSIlan Peer } else { 36355dca295dSIlan Peer eht_phy_cap = eht_cap->eht_cap_elem.phy_cap_info[0]; 36365dca295dSIlan Peer support_320 = 36375dca295dSIlan Peer eht_phy_cap & IEEE80211_EHT_PHY_CAP0_320MHZ_IN_6GHZ; 36385dca295dSIlan Peer 36391e0b3b0bSIlan Peer ieee80211_chandef_eht_oper(sdata, eht_oper, support_160, 36401e0b3b0bSIlan Peer support_320, &he_chandef); 36415dca295dSIlan Peer } 364257fa5e85SJohannes Berg 364357fa5e85SJohannes Berg if (!cfg80211_chandef_valid(&he_chandef)) { 364457fa5e85SJohannes Berg sdata_info(sdata, 364557fa5e85SJohannes Berg "HE 6GHz operation resulted in invalid chandef: %d MHz/%d/%d MHz/%d MHz\n", 364657fa5e85SJohannes Berg he_chandef.chan ? he_chandef.chan->center_freq : 0, 364757fa5e85SJohannes Berg he_chandef.width, 364857fa5e85SJohannes Berg he_chandef.center_freq1, 364957fa5e85SJohannes Berg he_chandef.center_freq2); 365057fa5e85SJohannes Berg return false; 365157fa5e85SJohannes Berg } 365257fa5e85SJohannes Berg 365357fa5e85SJohannes Berg *chandef = he_chandef; 365457fa5e85SJohannes Berg 36558fca2b87SWen Gong return true; 36561d00ce80SThomas Pedersen } 36571d00ce80SThomas Pedersen 36581d00ce80SThomas Pedersen bool ieee80211_chandef_s1g_oper(const struct ieee80211_s1g_oper_ie *oper, 36591d00ce80SThomas Pedersen struct cfg80211_chan_def *chandef) 36601d00ce80SThomas Pedersen { 36611d00ce80SThomas Pedersen u32 oper_freq; 36621d00ce80SThomas Pedersen 36631d00ce80SThomas Pedersen if (!oper) 36641d00ce80SThomas Pedersen return false; 36651d00ce80SThomas Pedersen 36661d00ce80SThomas Pedersen switch (FIELD_GET(S1G_OPER_CH_WIDTH_OPER, oper->ch_width)) { 36671d00ce80SThomas Pedersen case IEEE80211_S1G_CHANWIDTH_1MHZ: 36681d00ce80SThomas Pedersen chandef->width = NL80211_CHAN_WIDTH_1; 36691d00ce80SThomas Pedersen break; 36701d00ce80SThomas Pedersen case IEEE80211_S1G_CHANWIDTH_2MHZ: 36711d00ce80SThomas Pedersen chandef->width = NL80211_CHAN_WIDTH_2; 36721d00ce80SThomas Pedersen break; 36731d00ce80SThomas Pedersen case IEEE80211_S1G_CHANWIDTH_4MHZ: 36741d00ce80SThomas Pedersen chandef->width = NL80211_CHAN_WIDTH_4; 36751d00ce80SThomas Pedersen break; 36761d00ce80SThomas Pedersen case IEEE80211_S1G_CHANWIDTH_8MHZ: 36771d00ce80SThomas Pedersen chandef->width = NL80211_CHAN_WIDTH_8; 36781d00ce80SThomas Pedersen break; 36791d00ce80SThomas Pedersen case IEEE80211_S1G_CHANWIDTH_16MHZ: 36801d00ce80SThomas Pedersen chandef->width = NL80211_CHAN_WIDTH_16; 36811d00ce80SThomas Pedersen break; 36821d00ce80SThomas Pedersen default: 36831d00ce80SThomas Pedersen return false; 36841d00ce80SThomas Pedersen } 36851d00ce80SThomas Pedersen 36861d00ce80SThomas Pedersen oper_freq = ieee80211_channel_to_freq_khz(oper->oper_ch, 36871d00ce80SThomas Pedersen NL80211_BAND_S1GHZ); 36881d00ce80SThomas Pedersen chandef->center_freq1 = KHZ_TO_MHZ(oper_freq); 36891d00ce80SThomas Pedersen chandef->freq1_offset = oper_freq % 1000; 36901d00ce80SThomas Pedersen 369157fa5e85SJohannes Berg return true; 369257fa5e85SJohannes Berg } 369357fa5e85SJohannes Berg 36942103dec1SSimon Wunderlich int ieee80211_parse_bitrates(struct cfg80211_chan_def *chandef, 36952103dec1SSimon Wunderlich const struct ieee80211_supported_band *sband, 36962103dec1SSimon Wunderlich const u8 *srates, int srates_len, u32 *rates) 36972103dec1SSimon Wunderlich { 36982103dec1SSimon Wunderlich u32 rate_flags = ieee80211_chandef_rate_flags(chandef); 36992103dec1SSimon Wunderlich int shift = ieee80211_chandef_get_shift(chandef); 37002103dec1SSimon Wunderlich struct ieee80211_rate *br; 37012103dec1SSimon Wunderlich int brate, rate, i, j, count = 0; 37022103dec1SSimon Wunderlich 37032103dec1SSimon Wunderlich *rates = 0; 37042103dec1SSimon Wunderlich 37052103dec1SSimon Wunderlich for (i = 0; i < srates_len; i++) { 37062103dec1SSimon Wunderlich rate = srates[i] & 0x7f; 37072103dec1SSimon Wunderlich 37082103dec1SSimon Wunderlich for (j = 0; j < sband->n_bitrates; j++) { 37092103dec1SSimon Wunderlich br = &sband->bitrates[j]; 37102103dec1SSimon Wunderlich if ((rate_flags & br->flags) != rate_flags) 37112103dec1SSimon Wunderlich continue; 37122103dec1SSimon Wunderlich 37132103dec1SSimon Wunderlich brate = DIV_ROUND_UP(br->bitrate, (1 << shift) * 5); 37142103dec1SSimon Wunderlich if (brate == rate) { 37152103dec1SSimon Wunderlich *rates |= BIT(j); 37162103dec1SSimon Wunderlich count++; 37172103dec1SSimon Wunderlich break; 37182103dec1SSimon Wunderlich } 37192103dec1SSimon Wunderlich } 37202103dec1SSimon Wunderlich } 37212103dec1SSimon Wunderlich return count; 37222103dec1SSimon Wunderlich } 37232103dec1SSimon Wunderlich 3724fc8a7321SJohannes Berg int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata, 37256b77863bSJohannes Berg struct sk_buff *skb, bool need_basic, 372657fbcce3SJohannes Berg enum nl80211_band band) 3727768db343SArik Nemtsov { 3728768db343SArik Nemtsov struct ieee80211_local *local = sdata->local; 3729768db343SArik Nemtsov struct ieee80211_supported_band *sband; 37302103dec1SSimon Wunderlich int rate, shift; 3731768db343SArik Nemtsov u8 i, rates, *pos; 3732fc8a7321SJohannes Berg u32 basic_rates = sdata->vif.bss_conf.basic_rates; 37332103dec1SSimon Wunderlich u32 rate_flags; 3734768db343SArik Nemtsov 37352103dec1SSimon Wunderlich shift = ieee80211_vif_get_shift(&sdata->vif); 37362103dec1SSimon Wunderlich rate_flags = ieee80211_chandef_rate_flags(&sdata->vif.bss_conf.chandef); 37376b77863bSJohannes Berg sband = local->hw.wiphy->bands[band]; 37382103dec1SSimon Wunderlich rates = 0; 37392103dec1SSimon Wunderlich for (i = 0; i < sband->n_bitrates; i++) { 37402103dec1SSimon Wunderlich if ((rate_flags & sband->bitrates[i].flags) != rate_flags) 37412103dec1SSimon Wunderlich continue; 37422103dec1SSimon Wunderlich rates++; 37432103dec1SSimon Wunderlich } 3744768db343SArik Nemtsov if (rates > 8) 3745768db343SArik Nemtsov rates = 8; 3746768db343SArik Nemtsov 3747768db343SArik Nemtsov if (skb_tailroom(skb) < rates + 2) 3748768db343SArik Nemtsov return -ENOMEM; 3749768db343SArik Nemtsov 3750768db343SArik Nemtsov pos = skb_put(skb, rates + 2); 3751768db343SArik Nemtsov *pos++ = WLAN_EID_SUPP_RATES; 3752768db343SArik Nemtsov *pos++ = rates; 3753768db343SArik Nemtsov for (i = 0; i < rates; i++) { 3754657c3e0cSAshok Nagarajan u8 basic = 0; 37552103dec1SSimon Wunderlich if ((rate_flags & sband->bitrates[i].flags) != rate_flags) 37562103dec1SSimon Wunderlich continue; 37572103dec1SSimon Wunderlich 3758657c3e0cSAshok Nagarajan if (need_basic && basic_rates & BIT(i)) 3759657c3e0cSAshok Nagarajan basic = 0x80; 37602103dec1SSimon Wunderlich rate = DIV_ROUND_UP(sband->bitrates[i].bitrate, 37612103dec1SSimon Wunderlich 5 * (1 << shift)); 37622103dec1SSimon Wunderlich *pos++ = basic | (u8) rate; 3763768db343SArik Nemtsov } 3764768db343SArik Nemtsov 3765768db343SArik Nemtsov return 0; 3766768db343SArik Nemtsov } 3767768db343SArik Nemtsov 3768fc8a7321SJohannes Berg int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata, 37696b77863bSJohannes Berg struct sk_buff *skb, bool need_basic, 377057fbcce3SJohannes Berg enum nl80211_band band) 3771768db343SArik Nemtsov { 3772768db343SArik Nemtsov struct ieee80211_local *local = sdata->local; 3773768db343SArik Nemtsov struct ieee80211_supported_band *sband; 3774cc63ec76SChun-Yeow Yeoh int rate, shift; 3775768db343SArik Nemtsov u8 i, exrates, *pos; 3776fc8a7321SJohannes Berg u32 basic_rates = sdata->vif.bss_conf.basic_rates; 37772103dec1SSimon Wunderlich u32 rate_flags; 37782103dec1SSimon Wunderlich 37792103dec1SSimon Wunderlich rate_flags = ieee80211_chandef_rate_flags(&sdata->vif.bss_conf.chandef); 37802103dec1SSimon Wunderlich shift = ieee80211_vif_get_shift(&sdata->vif); 3781768db343SArik Nemtsov 37826b77863bSJohannes Berg sband = local->hw.wiphy->bands[band]; 37832103dec1SSimon Wunderlich exrates = 0; 37842103dec1SSimon Wunderlich for (i = 0; i < sband->n_bitrates; i++) { 37852103dec1SSimon Wunderlich if ((rate_flags & sband->bitrates[i].flags) != rate_flags) 37862103dec1SSimon Wunderlich continue; 37872103dec1SSimon Wunderlich exrates++; 37882103dec1SSimon Wunderlich } 37892103dec1SSimon Wunderlich 3790768db343SArik Nemtsov if (exrates > 8) 3791768db343SArik Nemtsov exrates -= 8; 3792768db343SArik Nemtsov else 3793768db343SArik Nemtsov exrates = 0; 3794768db343SArik Nemtsov 3795768db343SArik Nemtsov if (skb_tailroom(skb) < exrates + 2) 3796768db343SArik Nemtsov return -ENOMEM; 3797768db343SArik Nemtsov 3798768db343SArik Nemtsov if (exrates) { 3799768db343SArik Nemtsov pos = skb_put(skb, exrates + 2); 3800768db343SArik Nemtsov *pos++ = WLAN_EID_EXT_SUPP_RATES; 3801768db343SArik Nemtsov *pos++ = exrates; 3802768db343SArik Nemtsov for (i = 8; i < sband->n_bitrates; i++) { 3803657c3e0cSAshok Nagarajan u8 basic = 0; 38042103dec1SSimon Wunderlich if ((rate_flags & sband->bitrates[i].flags) 38052103dec1SSimon Wunderlich != rate_flags) 38062103dec1SSimon Wunderlich continue; 3807657c3e0cSAshok Nagarajan if (need_basic && basic_rates & BIT(i)) 3808657c3e0cSAshok Nagarajan basic = 0x80; 38092103dec1SSimon Wunderlich rate = DIV_ROUND_UP(sband->bitrates[i].bitrate, 38102103dec1SSimon Wunderlich 5 * (1 << shift)); 38112103dec1SSimon Wunderlich *pos++ = basic | (u8) rate; 3812768db343SArik Nemtsov } 3813768db343SArik Nemtsov } 3814768db343SArik Nemtsov return 0; 3815768db343SArik Nemtsov } 38161dae27f8SWey-Yi Guy 38171dae27f8SWey-Yi Guy int ieee80211_ave_rssi(struct ieee80211_vif *vif) 38181dae27f8SWey-Yi Guy { 38191dae27f8SWey-Yi Guy struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 38201dae27f8SWey-Yi Guy 3821bfd8403aSJohannes Berg if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) 3822be6bcabcSWey-Yi Guy return 0; 3823bfd8403aSJohannes Berg 3824bfd8403aSJohannes Berg return -ewma_beacon_signal_read(&sdata->deflink.u.mgd.ave_beacon_signal); 38251dae27f8SWey-Yi Guy } 38260d8a0a17SWey-Yi Guy EXPORT_SYMBOL_GPL(ieee80211_ave_rssi); 382704ecd257SJohannes Berg 382804ecd257SJohannes Berg u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs) 382904ecd257SJohannes Berg { 383004ecd257SJohannes Berg if (!mcs) 383104ecd257SJohannes Berg return 1; 383204ecd257SJohannes Berg 383304ecd257SJohannes Berg /* TODO: consider rx_highest */ 383404ecd257SJohannes Berg 383504ecd257SJohannes Berg if (mcs->rx_mask[3]) 383604ecd257SJohannes Berg return 4; 383704ecd257SJohannes Berg if (mcs->rx_mask[2]) 383804ecd257SJohannes Berg return 3; 383904ecd257SJohannes Berg if (mcs->rx_mask[1]) 384004ecd257SJohannes Berg return 2; 384104ecd257SJohannes Berg return 1; 384204ecd257SJohannes Berg } 3843f4bda337SThomas Pedersen 3844f4bda337SThomas Pedersen /** 3845f4bda337SThomas Pedersen * ieee80211_calculate_rx_timestamp - calculate timestamp in frame 3846f4bda337SThomas Pedersen * @local: mac80211 hw info struct 3847f4bda337SThomas Pedersen * @status: RX status 3848f4bda337SThomas Pedersen * @mpdu_len: total MPDU length (including FCS) 3849f4bda337SThomas Pedersen * @mpdu_offset: offset into MPDU to calculate timestamp at 3850f4bda337SThomas Pedersen * 3851f4bda337SThomas Pedersen * This function calculates the RX timestamp at the given MPDU offset, taking 3852f4bda337SThomas Pedersen * into account what the RX timestamp was. An offset of 0 will just normalize 3853f4bda337SThomas Pedersen * the timestamp to TSF at beginning of MPDU reception. 3854f4bda337SThomas Pedersen */ 3855f4bda337SThomas Pedersen u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local, 3856f4bda337SThomas Pedersen struct ieee80211_rx_status *status, 3857f4bda337SThomas Pedersen unsigned int mpdu_len, 3858f4bda337SThomas Pedersen unsigned int mpdu_offset) 3859f4bda337SThomas Pedersen { 3860f4bda337SThomas Pedersen u64 ts = status->mactime; 3861f4bda337SThomas Pedersen struct rate_info ri; 3862f4bda337SThomas Pedersen u16 rate; 3863da388233SAvraham Stern u8 n_ltf; 3864f4bda337SThomas Pedersen 3865f4bda337SThomas Pedersen if (WARN_ON(!ieee80211_have_rx_timestamp(status))) 3866f4bda337SThomas Pedersen return 0; 3867f4bda337SThomas Pedersen 3868f4bda337SThomas Pedersen memset(&ri, 0, sizeof(ri)); 3869f4bda337SThomas Pedersen 387035f4962cSJohannes Berg ri.bw = status->bw; 387135f4962cSJohannes Berg 3872f4bda337SThomas Pedersen /* Fill cfg80211 rate info */ 3873da6a4352SJohannes Berg switch (status->encoding) { 3874da388233SAvraham Stern case RX_ENC_HE: 3875da388233SAvraham Stern ri.flags |= RATE_INFO_FLAGS_HE_MCS; 3876da388233SAvraham Stern ri.mcs = status->rate_idx; 3877da388233SAvraham Stern ri.nss = status->nss; 3878da388233SAvraham Stern ri.he_ru_alloc = status->he_ru; 3879da388233SAvraham Stern if (status->enc_flags & RX_ENC_FLAG_SHORT_GI) 3880da388233SAvraham Stern ri.flags |= RATE_INFO_FLAGS_SHORT_GI; 3881da388233SAvraham Stern 3882da388233SAvraham Stern /* 3883da388233SAvraham Stern * See P802.11ax_D6.0, section 27.3.4 for 3884da388233SAvraham Stern * VHT PPDU format. 3885da388233SAvraham Stern */ 3886da388233SAvraham Stern if (status->flag & RX_FLAG_MACTIME_PLCP_START) { 3887da388233SAvraham Stern mpdu_offset += 2; 3888da388233SAvraham Stern ts += 36; 3889da388233SAvraham Stern 3890da388233SAvraham Stern /* 3891da388233SAvraham Stern * TODO: 3892da388233SAvraham Stern * For HE MU PPDU, add the HE-SIG-B. 3893da388233SAvraham Stern * For HE ER PPDU, add 8us for the HE-SIG-A. 3894da388233SAvraham Stern * For HE TB PPDU, add 4us for the HE-STF. 3895da388233SAvraham Stern * Add the HE-LTF durations - variable. 3896da388233SAvraham Stern */ 3897da388233SAvraham Stern } 3898da388233SAvraham Stern 3899da388233SAvraham Stern break; 3900da6a4352SJohannes Berg case RX_ENC_HT: 3901f4bda337SThomas Pedersen ri.mcs = status->rate_idx; 3902f4bda337SThomas Pedersen ri.flags |= RATE_INFO_FLAGS_MCS; 39037fdd69c5SJohannes Berg if (status->enc_flags & RX_ENC_FLAG_SHORT_GI) 3904f4bda337SThomas Pedersen ri.flags |= RATE_INFO_FLAGS_SHORT_GI; 3905da388233SAvraham Stern 3906da388233SAvraham Stern /* 3907da388233SAvraham Stern * See P802.11REVmd_D3.0, section 19.3.2 for 3908da388233SAvraham Stern * HT PPDU format. 3909da388233SAvraham Stern */ 3910da388233SAvraham Stern if (status->flag & RX_FLAG_MACTIME_PLCP_START) { 3911da388233SAvraham Stern mpdu_offset += 2; 3912da388233SAvraham Stern if (status->enc_flags & RX_ENC_FLAG_HT_GF) 3913da388233SAvraham Stern ts += 24; 3914da388233SAvraham Stern else 3915da388233SAvraham Stern ts += 32; 3916da388233SAvraham Stern 3917da388233SAvraham Stern /* 3918da388233SAvraham Stern * Add Data HT-LTFs per streams 3919da388233SAvraham Stern * TODO: add Extension HT-LTFs, 4us per LTF 3920da388233SAvraham Stern */ 3921da388233SAvraham Stern n_ltf = ((ri.mcs >> 3) & 3) + 1; 3922da388233SAvraham Stern n_ltf = n_ltf == 3 ? 4 : n_ltf; 3923da388233SAvraham Stern ts += n_ltf * 4; 3924da388233SAvraham Stern } 3925da388233SAvraham Stern 3926da6a4352SJohannes Berg break; 3927da6a4352SJohannes Berg case RX_ENC_VHT: 39285614618eSJohannes Berg ri.flags |= RATE_INFO_FLAGS_VHT_MCS; 39295614618eSJohannes Berg ri.mcs = status->rate_idx; 39308613c948SJohannes Berg ri.nss = status->nss; 39317fdd69c5SJohannes Berg if (status->enc_flags & RX_ENC_FLAG_SHORT_GI) 39325614618eSJohannes Berg ri.flags |= RATE_INFO_FLAGS_SHORT_GI; 3933da388233SAvraham Stern 3934da388233SAvraham Stern /* 3935da388233SAvraham Stern * See P802.11REVmd_D3.0, section 21.3.2 for 3936da388233SAvraham Stern * VHT PPDU format. 3937da388233SAvraham Stern */ 3938da388233SAvraham Stern if (status->flag & RX_FLAG_MACTIME_PLCP_START) { 3939da388233SAvraham Stern mpdu_offset += 2; 3940da388233SAvraham Stern ts += 36; 3941da388233SAvraham Stern 3942da388233SAvraham Stern /* 3943da388233SAvraham Stern * Add VHT-LTFs per streams 3944da388233SAvraham Stern */ 3945da388233SAvraham Stern n_ltf = (ri.nss != 1) && (ri.nss % 2) ? 3946da388233SAvraham Stern ri.nss + 1 : ri.nss; 3947da388233SAvraham Stern ts += 4 * n_ltf; 3948da388233SAvraham Stern } 3949da388233SAvraham Stern 3950da6a4352SJohannes Berg break; 3951da6a4352SJohannes Berg default: 3952da6a4352SJohannes Berg WARN_ON(1); 3953fc0561dcSGustavo A. R. Silva fallthrough; 3954da6a4352SJohannes Berg case RX_ENC_LEGACY: { 3955f4bda337SThomas Pedersen struct ieee80211_supported_band *sband; 39562103dec1SSimon Wunderlich int shift = 0; 39572103dec1SSimon Wunderlich int bitrate; 39582103dec1SSimon Wunderlich 3959da6a4352SJohannes Berg switch (status->bw) { 3960da6a4352SJohannes Berg case RATE_INFO_BW_10: 39612103dec1SSimon Wunderlich shift = 1; 3962da6a4352SJohannes Berg break; 3963da6a4352SJohannes Berg case RATE_INFO_BW_5: 39642103dec1SSimon Wunderlich shift = 2; 3965da6a4352SJohannes Berg break; 3966b51f3beeSJohannes Berg } 3967f4bda337SThomas Pedersen 3968f4bda337SThomas Pedersen sband = local->hw.wiphy->bands[status->band]; 39692103dec1SSimon Wunderlich bitrate = sband->bitrates[status->rate_idx].bitrate; 39702103dec1SSimon Wunderlich ri.legacy = DIV_ROUND_UP(bitrate, (1 << shift)); 3971f4a0f0c5SJohannes Berg 3972f4a0f0c5SJohannes Berg if (status->flag & RX_FLAG_MACTIME_PLCP_START) { 397357fbcce3SJohannes Berg if (status->band == NL80211_BAND_5GHZ) { 3974f4a0f0c5SJohannes Berg ts += 20 << shift; 3975f4a0f0c5SJohannes Berg mpdu_offset += 2; 39767fdd69c5SJohannes Berg } else if (status->enc_flags & RX_ENC_FLAG_SHORTPRE) { 3977f4a0f0c5SJohannes Berg ts += 96; 3978f4a0f0c5SJohannes Berg } else { 3979f4a0f0c5SJohannes Berg ts += 192; 3980f4a0f0c5SJohannes Berg } 3981f4a0f0c5SJohannes Berg } 3982da6a4352SJohannes Berg break; 3983da6a4352SJohannes Berg } 3984f4bda337SThomas Pedersen } 3985f4bda337SThomas Pedersen 3986f4bda337SThomas Pedersen rate = cfg80211_calculate_bitrate(&ri); 3987d86aa4f8SJohannes Berg if (WARN_ONCE(!rate, 3988f980ebc0SSara Sharon "Invalid bitrate: flags=0x%llx, idx=%d, vht_nss=%d\n", 3989f980ebc0SSara Sharon (unsigned long long)status->flag, status->rate_idx, 39908613c948SJohannes Berg status->nss)) 3991d86aa4f8SJohannes Berg return 0; 3992f4bda337SThomas Pedersen 3993f4bda337SThomas Pedersen /* rewind from end of MPDU */ 3994f4bda337SThomas Pedersen if (status->flag & RX_FLAG_MACTIME_END) 3995f4bda337SThomas Pedersen ts -= mpdu_len * 8 * 10 / rate; 3996f4bda337SThomas Pedersen 3997f4bda337SThomas Pedersen ts += mpdu_offset * 8 * 10 / rate; 3998f4bda337SThomas Pedersen 3999f4bda337SThomas Pedersen return ts; 4000f4bda337SThomas Pedersen } 4001164eb02dSSimon Wunderlich 4002164eb02dSSimon Wunderlich void ieee80211_dfs_cac_cancel(struct ieee80211_local *local) 4003164eb02dSSimon Wunderlich { 4004164eb02dSSimon Wunderlich struct ieee80211_sub_if_data *sdata; 4005d2859df5SJanusz Dziedzic struct cfg80211_chan_def chandef; 4006164eb02dSSimon Wunderlich 40074a199068SJohannes Berg /* for interface list, to avoid linking iflist_mtx and chanctx_mtx */ 4008a05829a7SJohannes Berg lockdep_assert_wiphy(local->hw.wiphy); 40094a199068SJohannes Berg 401034a3740dSJohannes Berg mutex_lock(&local->mtx); 4011164eb02dSSimon Wunderlich list_for_each_entry(sdata, &local->interfaces, list) { 401234a3740dSJohannes Berg /* it might be waiting for the local->mtx, but then 401334a3740dSJohannes Berg * by the time it gets it, sdata->wdev.cac_started 401434a3740dSJohannes Berg * will no longer be true 401534a3740dSJohannes Berg */ 4016bfd8403aSJohannes Berg cancel_delayed_work(&sdata->deflink.dfs_cac_timer_work); 4017164eb02dSSimon Wunderlich 4018164eb02dSSimon Wunderlich if (sdata->wdev.cac_started) { 4019d2859df5SJanusz Dziedzic chandef = sdata->vif.bss_conf.chandef; 4020d8675a63SJohannes Berg ieee80211_link_release_channel(&sdata->deflink); 4021164eb02dSSimon Wunderlich cfg80211_cac_event(sdata->dev, 4022d2859df5SJanusz Dziedzic &chandef, 4023164eb02dSSimon Wunderlich NL80211_RADAR_CAC_ABORTED, 4024164eb02dSSimon Wunderlich GFP_KERNEL); 4025164eb02dSSimon Wunderlich } 4026164eb02dSSimon Wunderlich } 402734a3740dSJohannes Berg mutex_unlock(&local->mtx); 4028164eb02dSSimon Wunderlich } 4029164eb02dSSimon Wunderlich 4030164eb02dSSimon Wunderlich void ieee80211_dfs_radar_detected_work(struct work_struct *work) 4031164eb02dSSimon Wunderlich { 4032164eb02dSSimon Wunderlich struct ieee80211_local *local = 4033164eb02dSSimon Wunderlich container_of(work, struct ieee80211_local, radar_detected_work); 403484a3d1c9SJanusz Dziedzic struct cfg80211_chan_def chandef = local->hw.conf.chandef; 4035486cf4c0SMichal Kazior struct ieee80211_chanctx *ctx; 4036486cf4c0SMichal Kazior int num_chanctx = 0; 4037486cf4c0SMichal Kazior 4038486cf4c0SMichal Kazior mutex_lock(&local->chanctx_mtx); 4039486cf4c0SMichal Kazior list_for_each_entry(ctx, &local->chanctx_list, list) { 4040486cf4c0SMichal Kazior if (ctx->replace_state == IEEE80211_CHANCTX_REPLACES_OTHER) 4041486cf4c0SMichal Kazior continue; 4042486cf4c0SMichal Kazior 4043486cf4c0SMichal Kazior num_chanctx++; 4044486cf4c0SMichal Kazior chandef = ctx->conf.def; 4045486cf4c0SMichal Kazior } 4046486cf4c0SMichal Kazior mutex_unlock(&local->chanctx_mtx); 4047164eb02dSSimon Wunderlich 4048a05829a7SJohannes Berg wiphy_lock(local->hw.wiphy); 4049164eb02dSSimon Wunderlich ieee80211_dfs_cac_cancel(local); 4050a05829a7SJohannes Berg wiphy_unlock(local->hw.wiphy); 4051164eb02dSSimon Wunderlich 4052486cf4c0SMichal Kazior if (num_chanctx > 1) 4053486cf4c0SMichal Kazior /* XXX: multi-channel is not supported yet */ 4054164eb02dSSimon Wunderlich WARN_ON(1); 405584a3d1c9SJanusz Dziedzic else 4056164eb02dSSimon Wunderlich cfg80211_radar_event(local->hw.wiphy, &chandef, GFP_KERNEL); 4057164eb02dSSimon Wunderlich } 4058164eb02dSSimon Wunderlich 4059164eb02dSSimon Wunderlich void ieee80211_radar_detected(struct ieee80211_hw *hw) 4060164eb02dSSimon Wunderlich { 4061164eb02dSSimon Wunderlich struct ieee80211_local *local = hw_to_local(hw); 4062164eb02dSSimon Wunderlich 4063164eb02dSSimon Wunderlich trace_api_radar_detected(local); 4064164eb02dSSimon Wunderlich 40654a199068SJohannes Berg schedule_work(&local->radar_detected_work); 4066164eb02dSSimon Wunderlich } 4067164eb02dSSimon Wunderlich EXPORT_SYMBOL(ieee80211_radar_detected); 4068e6b7cde4SSimon Wunderlich 4069ba323e29SJohannes Berg ieee80211_conn_flags_t ieee80211_chandef_downgrade(struct cfg80211_chan_def *c) 4070e6b7cde4SSimon Wunderlich { 4071ba323e29SJohannes Berg ieee80211_conn_flags_t ret; 4072e6b7cde4SSimon Wunderlich int tmp; 4073e6b7cde4SSimon Wunderlich 4074e6b7cde4SSimon Wunderlich switch (c->width) { 4075e6b7cde4SSimon Wunderlich case NL80211_CHAN_WIDTH_20: 4076e6b7cde4SSimon Wunderlich c->width = NL80211_CHAN_WIDTH_20_NOHT; 4077ba323e29SJohannes Berg ret = IEEE80211_CONN_DISABLE_HT | IEEE80211_CONN_DISABLE_VHT; 4078e6b7cde4SSimon Wunderlich break; 4079e6b7cde4SSimon Wunderlich case NL80211_CHAN_WIDTH_40: 4080e6b7cde4SSimon Wunderlich c->width = NL80211_CHAN_WIDTH_20; 4081e6b7cde4SSimon Wunderlich c->center_freq1 = c->chan->center_freq; 4082ba323e29SJohannes Berg ret = IEEE80211_CONN_DISABLE_40MHZ | 4083ba323e29SJohannes Berg IEEE80211_CONN_DISABLE_VHT; 4084e6b7cde4SSimon Wunderlich break; 4085e6b7cde4SSimon Wunderlich case NL80211_CHAN_WIDTH_80: 4086e6b7cde4SSimon Wunderlich tmp = (30 + c->chan->center_freq - c->center_freq1)/20; 4087e6b7cde4SSimon Wunderlich /* n_P40 */ 4088e6b7cde4SSimon Wunderlich tmp /= 2; 4089e6b7cde4SSimon Wunderlich /* freq_P40 */ 4090e6b7cde4SSimon Wunderlich c->center_freq1 = c->center_freq1 - 20 + 40 * tmp; 4091e6b7cde4SSimon Wunderlich c->width = NL80211_CHAN_WIDTH_40; 4092ba323e29SJohannes Berg ret = IEEE80211_CONN_DISABLE_VHT; 4093e6b7cde4SSimon Wunderlich break; 4094e6b7cde4SSimon Wunderlich case NL80211_CHAN_WIDTH_80P80: 4095e6b7cde4SSimon Wunderlich c->center_freq2 = 0; 4096e6b7cde4SSimon Wunderlich c->width = NL80211_CHAN_WIDTH_80; 4097ba323e29SJohannes Berg ret = IEEE80211_CONN_DISABLE_80P80MHZ | 4098ba323e29SJohannes Berg IEEE80211_CONN_DISABLE_160MHZ; 4099e6b7cde4SSimon Wunderlich break; 4100e6b7cde4SSimon Wunderlich case NL80211_CHAN_WIDTH_160: 4101e6b7cde4SSimon Wunderlich /* n_P20 */ 4102e6b7cde4SSimon Wunderlich tmp = (70 + c->chan->center_freq - c->center_freq1)/20; 4103e6b7cde4SSimon Wunderlich /* n_P80 */ 4104e6b7cde4SSimon Wunderlich tmp /= 4; 4105e6b7cde4SSimon Wunderlich c->center_freq1 = c->center_freq1 - 40 + 80 * tmp; 4106e6b7cde4SSimon Wunderlich c->width = NL80211_CHAN_WIDTH_80; 4107ba323e29SJohannes Berg ret = IEEE80211_CONN_DISABLE_80P80MHZ | 4108ba323e29SJohannes Berg IEEE80211_CONN_DISABLE_160MHZ; 4109e6b7cde4SSimon Wunderlich break; 41105dca295dSIlan Peer case NL80211_CHAN_WIDTH_320: 41115dca295dSIlan Peer /* n_P20 */ 41125dca295dSIlan Peer tmp = (150 + c->chan->center_freq - c->center_freq1) / 20; 41135dca295dSIlan Peer /* n_P160 */ 411468608f99SMeiChia Chiu tmp /= 8; 41155dca295dSIlan Peer c->center_freq1 = c->center_freq1 - 80 + 160 * tmp; 41165dca295dSIlan Peer c->width = NL80211_CHAN_WIDTH_160; 4117ba323e29SJohannes Berg ret = IEEE80211_CONN_DISABLE_320MHZ; 41185dca295dSIlan Peer break; 4119e6b7cde4SSimon Wunderlich default: 4120e6b7cde4SSimon Wunderlich case NL80211_CHAN_WIDTH_20_NOHT: 4121e6b7cde4SSimon Wunderlich WARN_ON_ONCE(1); 4122e6b7cde4SSimon Wunderlich c->width = NL80211_CHAN_WIDTH_20_NOHT; 4123ba323e29SJohannes Berg ret = IEEE80211_CONN_DISABLE_HT | IEEE80211_CONN_DISABLE_VHT; 4124e6b7cde4SSimon Wunderlich break; 4125df78a0c0SThomas Pedersen case NL80211_CHAN_WIDTH_1: 4126df78a0c0SThomas Pedersen case NL80211_CHAN_WIDTH_2: 4127df78a0c0SThomas Pedersen case NL80211_CHAN_WIDTH_4: 4128df78a0c0SThomas Pedersen case NL80211_CHAN_WIDTH_8: 4129df78a0c0SThomas Pedersen case NL80211_CHAN_WIDTH_16: 4130e6b7cde4SSimon Wunderlich case NL80211_CHAN_WIDTH_5: 4131e6b7cde4SSimon Wunderlich case NL80211_CHAN_WIDTH_10: 4132e6b7cde4SSimon Wunderlich WARN_ON_ONCE(1); 4133e6b7cde4SSimon Wunderlich /* keep c->width */ 4134ba323e29SJohannes Berg ret = IEEE80211_CONN_DISABLE_HT | IEEE80211_CONN_DISABLE_VHT; 4135e6b7cde4SSimon Wunderlich break; 4136e6b7cde4SSimon Wunderlich } 4137e6b7cde4SSimon Wunderlich 4138e6b7cde4SSimon Wunderlich WARN_ON_ONCE(!cfg80211_chandef_valid(c)); 4139e6b7cde4SSimon Wunderlich 4140e6b7cde4SSimon Wunderlich return ret; 4141e6b7cde4SSimon Wunderlich } 4142687da132SEmmanuel Grumbach 4143687da132SEmmanuel Grumbach /* 4144687da132SEmmanuel Grumbach * Returns true if smps_mode_new is strictly more restrictive than 4145687da132SEmmanuel Grumbach * smps_mode_old. 4146687da132SEmmanuel Grumbach */ 4147687da132SEmmanuel Grumbach bool ieee80211_smps_is_restrictive(enum ieee80211_smps_mode smps_mode_old, 4148687da132SEmmanuel Grumbach enum ieee80211_smps_mode smps_mode_new) 4149687da132SEmmanuel Grumbach { 4150687da132SEmmanuel Grumbach if (WARN_ON_ONCE(smps_mode_old == IEEE80211_SMPS_AUTOMATIC || 4151687da132SEmmanuel Grumbach smps_mode_new == IEEE80211_SMPS_AUTOMATIC)) 4152687da132SEmmanuel Grumbach return false; 4153687da132SEmmanuel Grumbach 4154687da132SEmmanuel Grumbach switch (smps_mode_old) { 4155687da132SEmmanuel Grumbach case IEEE80211_SMPS_STATIC: 4156687da132SEmmanuel Grumbach return false; 4157687da132SEmmanuel Grumbach case IEEE80211_SMPS_DYNAMIC: 4158687da132SEmmanuel Grumbach return smps_mode_new == IEEE80211_SMPS_STATIC; 4159687da132SEmmanuel Grumbach case IEEE80211_SMPS_OFF: 4160687da132SEmmanuel Grumbach return smps_mode_new != IEEE80211_SMPS_OFF; 4161687da132SEmmanuel Grumbach default: 4162687da132SEmmanuel Grumbach WARN_ON(1); 4163687da132SEmmanuel Grumbach } 4164687da132SEmmanuel Grumbach 4165687da132SEmmanuel Grumbach return false; 4166687da132SEmmanuel Grumbach } 4167c6da674aSChun-Yeow Yeoh 4168c6da674aSChun-Yeow Yeoh int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata, 4169c6da674aSChun-Yeow Yeoh struct cfg80211_csa_settings *csa_settings) 4170c6da674aSChun-Yeow Yeoh { 4171c6da674aSChun-Yeow Yeoh struct sk_buff *skb; 4172c6da674aSChun-Yeow Yeoh struct ieee80211_mgmt *mgmt; 4173c6da674aSChun-Yeow Yeoh struct ieee80211_local *local = sdata->local; 4174c6da674aSChun-Yeow Yeoh int freq; 41754c121fd6SJohannes Berg int hdr_len = offsetofend(struct ieee80211_mgmt, 41764c121fd6SJohannes Berg u.action.u.chan_switch); 4177c6da674aSChun-Yeow Yeoh u8 *pos; 4178c6da674aSChun-Yeow Yeoh 4179c6da674aSChun-Yeow Yeoh if (sdata->vif.type != NL80211_IFTYPE_ADHOC && 4180c6da674aSChun-Yeow Yeoh sdata->vif.type != NL80211_IFTYPE_MESH_POINT) 4181c6da674aSChun-Yeow Yeoh return -EOPNOTSUPP; 4182c6da674aSChun-Yeow Yeoh 4183c6da674aSChun-Yeow Yeoh skb = dev_alloc_skb(local->tx_headroom + hdr_len + 4184c6da674aSChun-Yeow Yeoh 5 + /* channel switch announcement element */ 4185c6da674aSChun-Yeow Yeoh 3 + /* secondary channel offset element */ 418675d627d5SSimon Wunderlich 5 + /* wide bandwidth channel switch announcement */ 4187c6da674aSChun-Yeow Yeoh 8); /* mesh channel switch parameters element */ 4188c6da674aSChun-Yeow Yeoh if (!skb) 4189c6da674aSChun-Yeow Yeoh return -ENOMEM; 4190c6da674aSChun-Yeow Yeoh 4191c6da674aSChun-Yeow Yeoh skb_reserve(skb, local->tx_headroom); 4192b080db58SJohannes Berg mgmt = skb_put_zero(skb, hdr_len); 4193c6da674aSChun-Yeow Yeoh mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | 4194c6da674aSChun-Yeow Yeoh IEEE80211_STYPE_ACTION); 4195c6da674aSChun-Yeow Yeoh 4196c6da674aSChun-Yeow Yeoh eth_broadcast_addr(mgmt->da); 4197c6da674aSChun-Yeow Yeoh memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN); 4198c6da674aSChun-Yeow Yeoh if (ieee80211_vif_is_mesh(&sdata->vif)) { 4199c6da674aSChun-Yeow Yeoh memcpy(mgmt->bssid, sdata->vif.addr, ETH_ALEN); 4200c6da674aSChun-Yeow Yeoh } else { 4201c6da674aSChun-Yeow Yeoh struct ieee80211_if_ibss *ifibss = &sdata->u.ibss; 4202c6da674aSChun-Yeow Yeoh memcpy(mgmt->bssid, ifibss->bssid, ETH_ALEN); 4203c6da674aSChun-Yeow Yeoh } 4204c6da674aSChun-Yeow Yeoh mgmt->u.action.category = WLAN_CATEGORY_SPECTRUM_MGMT; 4205c6da674aSChun-Yeow Yeoh mgmt->u.action.u.chan_switch.action_code = WLAN_ACTION_SPCT_CHL_SWITCH; 4206c6da674aSChun-Yeow Yeoh pos = skb_put(skb, 5); 4207c6da674aSChun-Yeow Yeoh *pos++ = WLAN_EID_CHANNEL_SWITCH; /* EID */ 4208c6da674aSChun-Yeow Yeoh *pos++ = 3; /* IE length */ 4209c6da674aSChun-Yeow Yeoh *pos++ = csa_settings->block_tx ? 1 : 0; /* CSA mode */ 4210c6da674aSChun-Yeow Yeoh freq = csa_settings->chandef.chan->center_freq; 4211c6da674aSChun-Yeow Yeoh *pos++ = ieee80211_frequency_to_channel(freq); /* channel */ 4212c6da674aSChun-Yeow Yeoh *pos++ = csa_settings->count; /* count */ 4213c6da674aSChun-Yeow Yeoh 4214c6da674aSChun-Yeow Yeoh if (csa_settings->chandef.width == NL80211_CHAN_WIDTH_40) { 4215c6da674aSChun-Yeow Yeoh enum nl80211_channel_type ch_type; 4216c6da674aSChun-Yeow Yeoh 4217c6da674aSChun-Yeow Yeoh skb_put(skb, 3); 4218c6da674aSChun-Yeow Yeoh *pos++ = WLAN_EID_SECONDARY_CHANNEL_OFFSET; /* EID */ 4219c6da674aSChun-Yeow Yeoh *pos++ = 1; /* IE length */ 4220c6da674aSChun-Yeow Yeoh ch_type = cfg80211_get_chandef_type(&csa_settings->chandef); 4221c6da674aSChun-Yeow Yeoh if (ch_type == NL80211_CHAN_HT40PLUS) 4222c6da674aSChun-Yeow Yeoh *pos++ = IEEE80211_HT_PARAM_CHA_SEC_ABOVE; 4223c6da674aSChun-Yeow Yeoh else 4224c6da674aSChun-Yeow Yeoh *pos++ = IEEE80211_HT_PARAM_CHA_SEC_BELOW; 4225c6da674aSChun-Yeow Yeoh } 4226c6da674aSChun-Yeow Yeoh 4227c6da674aSChun-Yeow Yeoh if (ieee80211_vif_is_mesh(&sdata->vif)) { 4228c6da674aSChun-Yeow Yeoh struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 4229c6da674aSChun-Yeow Yeoh 4230c6da674aSChun-Yeow Yeoh skb_put(skb, 8); 4231c6da674aSChun-Yeow Yeoh *pos++ = WLAN_EID_CHAN_SWITCH_PARAM; /* EID */ 4232c6da674aSChun-Yeow Yeoh *pos++ = 6; /* IE length */ 4233c6da674aSChun-Yeow Yeoh *pos++ = sdata->u.mesh.mshcfg.dot11MeshTTL; /* Mesh TTL */ 4234c6da674aSChun-Yeow Yeoh *pos = 0x00; /* Mesh Flag: Tx Restrict, Initiator, Reason */ 4235c6da674aSChun-Yeow Yeoh *pos |= WLAN_EID_CHAN_SWITCH_PARAM_INITIATOR; 4236c6da674aSChun-Yeow Yeoh *pos++ |= csa_settings->block_tx ? 4237c6da674aSChun-Yeow Yeoh WLAN_EID_CHAN_SWITCH_PARAM_TX_RESTRICT : 0x00; 4238c6da674aSChun-Yeow Yeoh put_unaligned_le16(WLAN_REASON_MESH_CHAN, pos); /* Reason Cd */ 4239c6da674aSChun-Yeow Yeoh pos += 2; 4240ca91dc97SChun-Yeow Yeoh put_unaligned_le16(ifmsh->pre_value, pos);/* Precedence Value */ 4241c6da674aSChun-Yeow Yeoh pos += 2; 4242c6da674aSChun-Yeow Yeoh } 4243c6da674aSChun-Yeow Yeoh 424475d627d5SSimon Wunderlich if (csa_settings->chandef.width == NL80211_CHAN_WIDTH_80 || 424575d627d5SSimon Wunderlich csa_settings->chandef.width == NL80211_CHAN_WIDTH_80P80 || 424675d627d5SSimon Wunderlich csa_settings->chandef.width == NL80211_CHAN_WIDTH_160) { 424775d627d5SSimon Wunderlich skb_put(skb, 5); 424875d627d5SSimon Wunderlich ieee80211_ie_build_wide_bw_cs(pos, &csa_settings->chandef); 424975d627d5SSimon Wunderlich } 425075d627d5SSimon Wunderlich 4251c6da674aSChun-Yeow Yeoh ieee80211_tx_skb(sdata, skb); 4252c6da674aSChun-Yeow Yeoh return 0; 4253c6da674aSChun-Yeow Yeoh } 42542475b1ccSMax Stepanov 4255a7022e65SFelix Fietkau static bool 4256a7022e65SFelix Fietkau ieee80211_extend_noa_desc(struct ieee80211_noa_data *data, u32 tsf, int i) 4257a7022e65SFelix Fietkau { 4258a7022e65SFelix Fietkau s32 end = data->desc[i].start + data->desc[i].duration - (tsf + 1); 4259a7022e65SFelix Fietkau int skip; 4260a7022e65SFelix Fietkau 4261a7022e65SFelix Fietkau if (end > 0) 4262a7022e65SFelix Fietkau return false; 4263a7022e65SFelix Fietkau 4264519ee691SJanusz.Dziedzic@tieto.com /* One shot NOA */ 4265519ee691SJanusz.Dziedzic@tieto.com if (data->count[i] == 1) 4266519ee691SJanusz.Dziedzic@tieto.com return false; 4267519ee691SJanusz.Dziedzic@tieto.com 4268519ee691SJanusz.Dziedzic@tieto.com if (data->desc[i].interval == 0) 4269519ee691SJanusz.Dziedzic@tieto.com return false; 4270519ee691SJanusz.Dziedzic@tieto.com 4271a7022e65SFelix Fietkau /* End time is in the past, check for repetitions */ 4272a7022e65SFelix Fietkau skip = DIV_ROUND_UP(-end, data->desc[i].interval); 4273a7022e65SFelix Fietkau if (data->count[i] < 255) { 4274a7022e65SFelix Fietkau if (data->count[i] <= skip) { 4275a7022e65SFelix Fietkau data->count[i] = 0; 4276a7022e65SFelix Fietkau return false; 4277a7022e65SFelix Fietkau } 4278a7022e65SFelix Fietkau 4279a7022e65SFelix Fietkau data->count[i] -= skip; 4280a7022e65SFelix Fietkau } 4281a7022e65SFelix Fietkau 4282a7022e65SFelix Fietkau data->desc[i].start += skip * data->desc[i].interval; 4283a7022e65SFelix Fietkau 4284a7022e65SFelix Fietkau return true; 4285a7022e65SFelix Fietkau } 4286a7022e65SFelix Fietkau 4287a7022e65SFelix Fietkau static bool 4288a7022e65SFelix Fietkau ieee80211_extend_absent_time(struct ieee80211_noa_data *data, u32 tsf, 4289a7022e65SFelix Fietkau s32 *offset) 4290a7022e65SFelix Fietkau { 4291a7022e65SFelix Fietkau bool ret = false; 4292a7022e65SFelix Fietkau int i; 4293a7022e65SFelix Fietkau 4294a7022e65SFelix Fietkau for (i = 0; i < IEEE80211_P2P_NOA_DESC_MAX; i++) { 4295a7022e65SFelix Fietkau s32 cur; 4296a7022e65SFelix Fietkau 4297a7022e65SFelix Fietkau if (!data->count[i]) 4298a7022e65SFelix Fietkau continue; 4299a7022e65SFelix Fietkau 4300a7022e65SFelix Fietkau if (ieee80211_extend_noa_desc(data, tsf + *offset, i)) 4301a7022e65SFelix Fietkau ret = true; 4302a7022e65SFelix Fietkau 4303a7022e65SFelix Fietkau cur = data->desc[i].start - tsf; 4304a7022e65SFelix Fietkau if (cur > *offset) 4305a7022e65SFelix Fietkau continue; 4306a7022e65SFelix Fietkau 4307a7022e65SFelix Fietkau cur = data->desc[i].start + data->desc[i].duration - tsf; 4308a7022e65SFelix Fietkau if (cur > *offset) 4309a7022e65SFelix Fietkau *offset = cur; 4310a7022e65SFelix Fietkau } 4311a7022e65SFelix Fietkau 4312a7022e65SFelix Fietkau return ret; 4313a7022e65SFelix Fietkau } 4314a7022e65SFelix Fietkau 4315a7022e65SFelix Fietkau static u32 4316a7022e65SFelix Fietkau ieee80211_get_noa_absent_time(struct ieee80211_noa_data *data, u32 tsf) 4317a7022e65SFelix Fietkau { 4318a7022e65SFelix Fietkau s32 offset = 0; 4319a7022e65SFelix Fietkau int tries = 0; 4320a7022e65SFelix Fietkau /* 4321a7022e65SFelix Fietkau * arbitrary limit, used to avoid infinite loops when combined NoA 4322a7022e65SFelix Fietkau * descriptors cover the full time period. 4323a7022e65SFelix Fietkau */ 4324a7022e65SFelix Fietkau int max_tries = 5; 4325a7022e65SFelix Fietkau 4326a7022e65SFelix Fietkau ieee80211_extend_absent_time(data, tsf, &offset); 4327a7022e65SFelix Fietkau do { 4328a7022e65SFelix Fietkau if (!ieee80211_extend_absent_time(data, tsf, &offset)) 4329a7022e65SFelix Fietkau break; 4330a7022e65SFelix Fietkau 4331a7022e65SFelix Fietkau tries++; 4332a7022e65SFelix Fietkau } while (tries < max_tries); 4333a7022e65SFelix Fietkau 4334a7022e65SFelix Fietkau return offset; 4335a7022e65SFelix Fietkau } 4336a7022e65SFelix Fietkau 4337a7022e65SFelix Fietkau void ieee80211_update_p2p_noa(struct ieee80211_noa_data *data, u32 tsf) 4338a7022e65SFelix Fietkau { 4339a7022e65SFelix Fietkau u32 next_offset = BIT(31) - 1; 4340a7022e65SFelix Fietkau int i; 4341a7022e65SFelix Fietkau 4342a7022e65SFelix Fietkau data->absent = 0; 4343a7022e65SFelix Fietkau data->has_next_tsf = false; 4344a7022e65SFelix Fietkau for (i = 0; i < IEEE80211_P2P_NOA_DESC_MAX; i++) { 4345a7022e65SFelix Fietkau s32 start; 4346a7022e65SFelix Fietkau 4347a7022e65SFelix Fietkau if (!data->count[i]) 4348a7022e65SFelix Fietkau continue; 4349a7022e65SFelix Fietkau 4350a7022e65SFelix Fietkau ieee80211_extend_noa_desc(data, tsf, i); 4351a7022e65SFelix Fietkau start = data->desc[i].start - tsf; 4352a7022e65SFelix Fietkau if (start <= 0) 4353a7022e65SFelix Fietkau data->absent |= BIT(i); 4354a7022e65SFelix Fietkau 4355a7022e65SFelix Fietkau if (next_offset > start) 4356a7022e65SFelix Fietkau next_offset = start; 4357a7022e65SFelix Fietkau 4358a7022e65SFelix Fietkau data->has_next_tsf = true; 4359a7022e65SFelix Fietkau } 4360a7022e65SFelix Fietkau 4361a7022e65SFelix Fietkau if (data->absent) 4362a7022e65SFelix Fietkau next_offset = ieee80211_get_noa_absent_time(data, tsf); 4363a7022e65SFelix Fietkau 4364a7022e65SFelix Fietkau data->next_tsf = tsf + next_offset; 4365a7022e65SFelix Fietkau } 4366a7022e65SFelix Fietkau EXPORT_SYMBOL(ieee80211_update_p2p_noa); 4367a7022e65SFelix Fietkau 4368a7022e65SFelix Fietkau int ieee80211_parse_p2p_noa(const struct ieee80211_p2p_noa_attr *attr, 4369a7022e65SFelix Fietkau struct ieee80211_noa_data *data, u32 tsf) 4370a7022e65SFelix Fietkau { 4371a7022e65SFelix Fietkau int ret = 0; 4372a7022e65SFelix Fietkau int i; 4373a7022e65SFelix Fietkau 4374a7022e65SFelix Fietkau memset(data, 0, sizeof(*data)); 4375a7022e65SFelix Fietkau 4376a7022e65SFelix Fietkau for (i = 0; i < IEEE80211_P2P_NOA_DESC_MAX; i++) { 4377a7022e65SFelix Fietkau const struct ieee80211_p2p_noa_desc *desc = &attr->desc[i]; 4378a7022e65SFelix Fietkau 4379a7022e65SFelix Fietkau if (!desc->count || !desc->duration) 4380a7022e65SFelix Fietkau continue; 4381a7022e65SFelix Fietkau 4382a7022e65SFelix Fietkau data->count[i] = desc->count; 4383a7022e65SFelix Fietkau data->desc[i].start = le32_to_cpu(desc->start_time); 4384a7022e65SFelix Fietkau data->desc[i].duration = le32_to_cpu(desc->duration); 4385a7022e65SFelix Fietkau data->desc[i].interval = le32_to_cpu(desc->interval); 4386a7022e65SFelix Fietkau 4387a7022e65SFelix Fietkau if (data->count[i] > 1 && 4388a7022e65SFelix Fietkau data->desc[i].interval < data->desc[i].duration) 4389a7022e65SFelix Fietkau continue; 4390a7022e65SFelix Fietkau 4391a7022e65SFelix Fietkau ieee80211_extend_noa_desc(data, tsf, i); 4392a7022e65SFelix Fietkau ret++; 4393a7022e65SFelix Fietkau } 4394a7022e65SFelix Fietkau 4395a7022e65SFelix Fietkau if (ret) 4396a7022e65SFelix Fietkau ieee80211_update_p2p_noa(data, tsf); 4397a7022e65SFelix Fietkau 4398a7022e65SFelix Fietkau return ret; 4399a7022e65SFelix Fietkau } 4400a7022e65SFelix Fietkau EXPORT_SYMBOL(ieee80211_parse_p2p_noa); 4401057d5f4bSThomas Pedersen 4402057d5f4bSThomas Pedersen void ieee80211_recalc_dtim(struct ieee80211_local *local, 4403057d5f4bSThomas Pedersen struct ieee80211_sub_if_data *sdata) 4404057d5f4bSThomas Pedersen { 4405057d5f4bSThomas Pedersen u64 tsf = drv_get_tsf(local, sdata); 4406057d5f4bSThomas Pedersen u64 dtim_count = 0; 4407057d5f4bSThomas Pedersen u16 beacon_int = sdata->vif.bss_conf.beacon_int * 1024; 4408057d5f4bSThomas Pedersen u8 dtim_period = sdata->vif.bss_conf.dtim_period; 4409057d5f4bSThomas Pedersen struct ps_data *ps; 4410057d5f4bSThomas Pedersen u8 bcns_from_dtim; 4411057d5f4bSThomas Pedersen 4412057d5f4bSThomas Pedersen if (tsf == -1ULL || !beacon_int || !dtim_period) 4413057d5f4bSThomas Pedersen return; 4414057d5f4bSThomas Pedersen 4415057d5f4bSThomas Pedersen if (sdata->vif.type == NL80211_IFTYPE_AP || 4416057d5f4bSThomas Pedersen sdata->vif.type == NL80211_IFTYPE_AP_VLAN) { 4417057d5f4bSThomas Pedersen if (!sdata->bss) 4418057d5f4bSThomas Pedersen return; 4419057d5f4bSThomas Pedersen 4420057d5f4bSThomas Pedersen ps = &sdata->bss->ps; 4421057d5f4bSThomas Pedersen } else if (ieee80211_vif_is_mesh(&sdata->vif)) { 4422057d5f4bSThomas Pedersen ps = &sdata->u.mesh.ps; 4423057d5f4bSThomas Pedersen } else { 4424057d5f4bSThomas Pedersen return; 4425057d5f4bSThomas Pedersen } 4426057d5f4bSThomas Pedersen 4427057d5f4bSThomas Pedersen /* 4428057d5f4bSThomas Pedersen * actually finds last dtim_count, mac80211 will update in 4429057d5f4bSThomas Pedersen * __beacon_add_tim(). 4430057d5f4bSThomas Pedersen * dtim_count = dtim_period - (tsf / bcn_int) % dtim_period 4431057d5f4bSThomas Pedersen */ 4432057d5f4bSThomas Pedersen do_div(tsf, beacon_int); 4433057d5f4bSThomas Pedersen bcns_from_dtim = do_div(tsf, dtim_period); 4434057d5f4bSThomas Pedersen /* just had a DTIM */ 4435057d5f4bSThomas Pedersen if (!bcns_from_dtim) 4436057d5f4bSThomas Pedersen dtim_count = 0; 4437057d5f4bSThomas Pedersen else 4438057d5f4bSThomas Pedersen dtim_count = dtim_period - bcns_from_dtim; 4439057d5f4bSThomas Pedersen 4440057d5f4bSThomas Pedersen ps->dtim_count = dtim_count; 4441057d5f4bSThomas Pedersen } 444273de86a3SLuciano Coelho 444371e6195eSMichal Kazior static u8 ieee80211_chanctx_radar_detect(struct ieee80211_local *local, 444471e6195eSMichal Kazior struct ieee80211_chanctx *ctx) 444571e6195eSMichal Kazior { 4446b4f85443SJohannes Berg struct ieee80211_link_data *link; 444771e6195eSMichal Kazior u8 radar_detect = 0; 444871e6195eSMichal Kazior 444971e6195eSMichal Kazior lockdep_assert_held(&local->chanctx_mtx); 445071e6195eSMichal Kazior 445171e6195eSMichal Kazior if (WARN_ON(ctx->replace_state == IEEE80211_CHANCTX_WILL_BE_REPLACED)) 445271e6195eSMichal Kazior return 0; 445371e6195eSMichal Kazior 4454b4f85443SJohannes Berg list_for_each_entry(link, &ctx->reserved_links, reserved_chanctx_list) 4455b4f85443SJohannes Berg if (link->reserved_radar_required) 4456b4f85443SJohannes Berg radar_detect |= BIT(link->reserved_chandef.width); 445771e6195eSMichal Kazior 445871e6195eSMichal Kazior /* 445971e6195eSMichal Kazior * An in-place reservation context should not have any assigned vifs 446071e6195eSMichal Kazior * until it replaces the other context. 446171e6195eSMichal Kazior */ 446271e6195eSMichal Kazior WARN_ON(ctx->replace_state == IEEE80211_CHANCTX_REPLACES_OTHER && 4463b4f85443SJohannes Berg !list_empty(&ctx->assigned_links)); 446471e6195eSMichal Kazior 4465b4f85443SJohannes Berg list_for_each_entry(link, &ctx->assigned_links, assigned_chanctx_list) { 4466b4f85443SJohannes Berg if (!link->radar_required) 4467b4f85443SJohannes Berg continue; 4468b4f85443SJohannes Berg 4469b4f85443SJohannes Berg radar_detect |= 4470d8675a63SJohannes Berg BIT(link->conf->chandef.width); 4471b4f85443SJohannes Berg } 447271e6195eSMichal Kazior 447371e6195eSMichal Kazior return radar_detect; 447471e6195eSMichal Kazior } 447571e6195eSMichal Kazior 447673de86a3SLuciano Coelho int ieee80211_check_combinations(struct ieee80211_sub_if_data *sdata, 447773de86a3SLuciano Coelho const struct cfg80211_chan_def *chandef, 447873de86a3SLuciano Coelho enum ieee80211_chanctx_mode chanmode, 447973de86a3SLuciano Coelho u8 radar_detect) 448073de86a3SLuciano Coelho { 448173de86a3SLuciano Coelho struct ieee80211_local *local = sdata->local; 448273de86a3SLuciano Coelho struct ieee80211_sub_if_data *sdata_iter; 448373de86a3SLuciano Coelho enum nl80211_iftype iftype = sdata->wdev.iftype; 448473de86a3SLuciano Coelho struct ieee80211_chanctx *ctx; 448573de86a3SLuciano Coelho int total = 1; 4486e227300cSPurushottam Kushwaha struct iface_combination_params params = { 4487e227300cSPurushottam Kushwaha .radar_detect = radar_detect, 4488e227300cSPurushottam Kushwaha }; 448973de86a3SLuciano Coelho 449073de86a3SLuciano Coelho lockdep_assert_held(&local->chanctx_mtx); 449173de86a3SLuciano Coelho 449273de86a3SLuciano Coelho if (WARN_ON(hweight32(radar_detect) > 1)) 449373de86a3SLuciano Coelho return -EINVAL; 449473de86a3SLuciano Coelho 4495b6a55015SLuciano Coelho if (WARN_ON(chandef && chanmode == IEEE80211_CHANCTX_SHARED && 4496b6a55015SLuciano Coelho !chandef->chan)) 449773de86a3SLuciano Coelho return -EINVAL; 449873de86a3SLuciano Coelho 449973de86a3SLuciano Coelho if (WARN_ON(iftype >= NUM_NL80211_IFTYPES)) 450073de86a3SLuciano Coelho return -EINVAL; 450173de86a3SLuciano Coelho 4502ac668afeSJohannes Berg if (sdata->vif.type == NL80211_IFTYPE_AP || 4503ac668afeSJohannes Berg sdata->vif.type == NL80211_IFTYPE_MESH_POINT) { 4504ac668afeSJohannes Berg /* 4505ac668afeSJohannes Berg * always passing this is harmless, since it'll be the 4506ac668afeSJohannes Berg * same value that cfg80211 finds if it finds the same 4507ac668afeSJohannes Berg * interface ... and that's always allowed 4508ac668afeSJohannes Berg */ 4509ac668afeSJohannes Berg params.new_beacon_int = sdata->vif.bss_conf.beacon_int; 4510ac668afeSJohannes Berg } 4511ac668afeSJohannes Berg 451273de86a3SLuciano Coelho /* Always allow software iftypes */ 4513e6f40511SManikanta Pubbisetty if (cfg80211_iftype_allowed(local->hw.wiphy, iftype, 0, 1)) { 451473de86a3SLuciano Coelho if (radar_detect) 451573de86a3SLuciano Coelho return -EINVAL; 451673de86a3SLuciano Coelho return 0; 451773de86a3SLuciano Coelho } 451873de86a3SLuciano Coelho 4519e227300cSPurushottam Kushwaha if (chandef) 4520e227300cSPurushottam Kushwaha params.num_different_channels = 1; 452173de86a3SLuciano Coelho 452273de86a3SLuciano Coelho if (iftype != NL80211_IFTYPE_UNSPECIFIED) 4523e227300cSPurushottam Kushwaha params.iftype_num[iftype] = 1; 452473de86a3SLuciano Coelho 452573de86a3SLuciano Coelho list_for_each_entry(ctx, &local->chanctx_list, list) { 45265bcae31dSMichal Kazior if (ctx->replace_state == IEEE80211_CHANCTX_WILL_BE_REPLACED) 45275bcae31dSMichal Kazior continue; 4528e227300cSPurushottam Kushwaha params.radar_detect |= 4529e227300cSPurushottam Kushwaha ieee80211_chanctx_radar_detect(local, ctx); 453073de86a3SLuciano Coelho if (ctx->mode == IEEE80211_CHANCTX_EXCLUSIVE) { 4531e227300cSPurushottam Kushwaha params.num_different_channels++; 453273de86a3SLuciano Coelho continue; 453373de86a3SLuciano Coelho } 4534b6a55015SLuciano Coelho if (chandef && chanmode == IEEE80211_CHANCTX_SHARED && 453573de86a3SLuciano Coelho cfg80211_chandef_compatible(chandef, 453673de86a3SLuciano Coelho &ctx->conf.def)) 453773de86a3SLuciano Coelho continue; 4538e227300cSPurushottam Kushwaha params.num_different_channels++; 453973de86a3SLuciano Coelho } 454073de86a3SLuciano Coelho 454173de86a3SLuciano Coelho list_for_each_entry_rcu(sdata_iter, &local->interfaces, list) { 454273de86a3SLuciano Coelho struct wireless_dev *wdev_iter; 454373de86a3SLuciano Coelho 454473de86a3SLuciano Coelho wdev_iter = &sdata_iter->wdev; 454573de86a3SLuciano Coelho 454673de86a3SLuciano Coelho if (sdata_iter == sdata || 45470f611d28SAndrei Otcheretianski !ieee80211_sdata_running(sdata_iter) || 4548e6f40511SManikanta Pubbisetty cfg80211_iftype_allowed(local->hw.wiphy, 4549e6f40511SManikanta Pubbisetty wdev_iter->iftype, 0, 1)) 455073de86a3SLuciano Coelho continue; 455173de86a3SLuciano Coelho 4552e227300cSPurushottam Kushwaha params.iftype_num[wdev_iter->iftype]++; 455373de86a3SLuciano Coelho total++; 455473de86a3SLuciano Coelho } 455573de86a3SLuciano Coelho 4556e227300cSPurushottam Kushwaha if (total == 1 && !params.radar_detect) 455773de86a3SLuciano Coelho return 0; 455873de86a3SLuciano Coelho 4559e227300cSPurushottam Kushwaha return cfg80211_check_combinations(local->hw.wiphy, ¶ms); 456073de86a3SLuciano Coelho } 45616fa001bcSMichal Kazior 45626fa001bcSMichal Kazior static void 45636fa001bcSMichal Kazior ieee80211_iter_max_chans(const struct ieee80211_iface_combination *c, 45646fa001bcSMichal Kazior void *data) 45656fa001bcSMichal Kazior { 45666fa001bcSMichal Kazior u32 *max_num_different_channels = data; 45676fa001bcSMichal Kazior 45686fa001bcSMichal Kazior *max_num_different_channels = max(*max_num_different_channels, 45696fa001bcSMichal Kazior c->num_different_channels); 45706fa001bcSMichal Kazior } 45716fa001bcSMichal Kazior 45726fa001bcSMichal Kazior int ieee80211_max_num_channels(struct ieee80211_local *local) 45736fa001bcSMichal Kazior { 45746fa001bcSMichal Kazior struct ieee80211_sub_if_data *sdata; 45756fa001bcSMichal Kazior struct ieee80211_chanctx *ctx; 45766fa001bcSMichal Kazior u32 max_num_different_channels = 1; 45776fa001bcSMichal Kazior int err; 4578e227300cSPurushottam Kushwaha struct iface_combination_params params = {0}; 45796fa001bcSMichal Kazior 45806fa001bcSMichal Kazior lockdep_assert_held(&local->chanctx_mtx); 45816fa001bcSMichal Kazior 45826fa001bcSMichal Kazior list_for_each_entry(ctx, &local->chanctx_list, list) { 45835bcae31dSMichal Kazior if (ctx->replace_state == IEEE80211_CHANCTX_WILL_BE_REPLACED) 45845bcae31dSMichal Kazior continue; 45855bcae31dSMichal Kazior 4586e227300cSPurushottam Kushwaha params.num_different_channels++; 45876fa001bcSMichal Kazior 4588e227300cSPurushottam Kushwaha params.radar_detect |= 4589e227300cSPurushottam Kushwaha ieee80211_chanctx_radar_detect(local, ctx); 45906fa001bcSMichal Kazior } 45916fa001bcSMichal Kazior 45926fa001bcSMichal Kazior list_for_each_entry_rcu(sdata, &local->interfaces, list) 4593e227300cSPurushottam Kushwaha params.iftype_num[sdata->wdev.iftype]++; 45946fa001bcSMichal Kazior 4595e227300cSPurushottam Kushwaha err = cfg80211_iter_combinations(local->hw.wiphy, ¶ms, 4596e227300cSPurushottam Kushwaha ieee80211_iter_max_chans, 45976fa001bcSMichal Kazior &max_num_different_channels); 45986fa001bcSMichal Kazior if (err < 0) 45996fa001bcSMichal Kazior return err; 46006fa001bcSMichal Kazior 46016fa001bcSMichal Kazior return max_num_different_channels; 46026fa001bcSMichal Kazior } 460340b861a0SArik Nemtsov 46047957c6c8SThomas Pedersen void ieee80211_add_s1g_capab_ie(struct ieee80211_sub_if_data *sdata, 46057957c6c8SThomas Pedersen struct ieee80211_sta_s1g_cap *caps, 46067957c6c8SThomas Pedersen struct sk_buff *skb) 46077957c6c8SThomas Pedersen { 46087957c6c8SThomas Pedersen struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 46097957c6c8SThomas Pedersen struct ieee80211_s1g_cap s1g_capab; 46107957c6c8SThomas Pedersen u8 *pos; 46117957c6c8SThomas Pedersen int i; 46127957c6c8SThomas Pedersen 46137957c6c8SThomas Pedersen if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION)) 46147957c6c8SThomas Pedersen return; 46157957c6c8SThomas Pedersen 46167957c6c8SThomas Pedersen if (!caps->s1g) 46177957c6c8SThomas Pedersen return; 46187957c6c8SThomas Pedersen 46197957c6c8SThomas Pedersen memcpy(s1g_capab.capab_info, caps->cap, sizeof(caps->cap)); 46207957c6c8SThomas Pedersen memcpy(s1g_capab.supp_mcs_nss, caps->nss_mcs, sizeof(caps->nss_mcs)); 46217957c6c8SThomas Pedersen 46227957c6c8SThomas Pedersen /* override the capability info */ 46237957c6c8SThomas Pedersen for (i = 0; i < sizeof(ifmgd->s1g_capa.capab_info); i++) { 46247957c6c8SThomas Pedersen u8 mask = ifmgd->s1g_capa_mask.capab_info[i]; 46257957c6c8SThomas Pedersen 46267957c6c8SThomas Pedersen s1g_capab.capab_info[i] &= ~mask; 46277957c6c8SThomas Pedersen s1g_capab.capab_info[i] |= ifmgd->s1g_capa.capab_info[i] & mask; 46287957c6c8SThomas Pedersen } 46297957c6c8SThomas Pedersen 46307957c6c8SThomas Pedersen /* then MCS and NSS set */ 46317957c6c8SThomas Pedersen for (i = 0; i < sizeof(ifmgd->s1g_capa.supp_mcs_nss); i++) { 46327957c6c8SThomas Pedersen u8 mask = ifmgd->s1g_capa_mask.supp_mcs_nss[i]; 46337957c6c8SThomas Pedersen 46347957c6c8SThomas Pedersen s1g_capab.supp_mcs_nss[i] &= ~mask; 46357957c6c8SThomas Pedersen s1g_capab.supp_mcs_nss[i] |= 46367957c6c8SThomas Pedersen ifmgd->s1g_capa.supp_mcs_nss[i] & mask; 46377957c6c8SThomas Pedersen } 46387957c6c8SThomas Pedersen 46397957c6c8SThomas Pedersen pos = skb_put(skb, 2 + sizeof(s1g_capab)); 46407957c6c8SThomas Pedersen *pos++ = WLAN_EID_S1G_CAPABILITIES; 46417957c6c8SThomas Pedersen *pos++ = sizeof(s1g_capab); 46427957c6c8SThomas Pedersen 46437957c6c8SThomas Pedersen memcpy(pos, &s1g_capab, sizeof(s1g_capab)); 46447957c6c8SThomas Pedersen } 46457957c6c8SThomas Pedersen 46461d00ce80SThomas Pedersen void ieee80211_add_aid_request_ie(struct ieee80211_sub_if_data *sdata, 46471d00ce80SThomas Pedersen struct sk_buff *skb) 46481d00ce80SThomas Pedersen { 46491d00ce80SThomas Pedersen u8 *pos = skb_put(skb, 3); 46501d00ce80SThomas Pedersen 46511d00ce80SThomas Pedersen *pos++ = WLAN_EID_AID_REQUEST; 46521d00ce80SThomas Pedersen *pos++ = 1; 46531d00ce80SThomas Pedersen *pos++ = 0; 46541d00ce80SThomas Pedersen } 46551d00ce80SThomas Pedersen 465640b861a0SArik Nemtsov u8 *ieee80211_add_wmm_info_ie(u8 *buf, u8 qosinfo) 465740b861a0SArik Nemtsov { 465840b861a0SArik Nemtsov *buf++ = WLAN_EID_VENDOR_SPECIFIC; 465940b861a0SArik Nemtsov *buf++ = 7; /* len */ 466040b861a0SArik Nemtsov *buf++ = 0x00; /* Microsoft OUI 00:50:F2 */ 466140b861a0SArik Nemtsov *buf++ = 0x50; 466240b861a0SArik Nemtsov *buf++ = 0xf2; 466340b861a0SArik Nemtsov *buf++ = 2; /* WME */ 466440b861a0SArik Nemtsov *buf++ = 0; /* WME info */ 466540b861a0SArik Nemtsov *buf++ = 1; /* WME ver */ 466640b861a0SArik Nemtsov *buf++ = qosinfo; /* U-APSD no in use */ 466740b861a0SArik Nemtsov 466840b861a0SArik Nemtsov return buf; 466940b861a0SArik Nemtsov } 4670ba8c3d6fSFelix Fietkau 4671f2ac7e30SMichal Kazior void ieee80211_txq_get_depth(struct ieee80211_txq *txq, 4672f2ac7e30SMichal Kazior unsigned long *frame_cnt, 4673f2ac7e30SMichal Kazior unsigned long *byte_cnt) 4674f2ac7e30SMichal Kazior { 4675f2ac7e30SMichal Kazior struct txq_info *txqi = to_txq_info(txq); 4676bb42f2d1SToke Høiland-Jørgensen u32 frag_cnt = 0, frag_bytes = 0; 4677bb42f2d1SToke Høiland-Jørgensen struct sk_buff *skb; 4678bb42f2d1SToke Høiland-Jørgensen 4679bb42f2d1SToke Høiland-Jørgensen skb_queue_walk(&txqi->frags, skb) { 4680bb42f2d1SToke Høiland-Jørgensen frag_cnt++; 4681bb42f2d1SToke Høiland-Jørgensen frag_bytes += skb->len; 4682bb42f2d1SToke Høiland-Jørgensen } 4683f2ac7e30SMichal Kazior 4684f2ac7e30SMichal Kazior if (frame_cnt) 4685bb42f2d1SToke Høiland-Jørgensen *frame_cnt = txqi->tin.backlog_packets + frag_cnt; 4686f2ac7e30SMichal Kazior 4687f2ac7e30SMichal Kazior if (byte_cnt) 4688bb42f2d1SToke Høiland-Jørgensen *byte_cnt = txqi->tin.backlog_bytes + frag_bytes; 4689f2ac7e30SMichal Kazior } 4690f2ac7e30SMichal Kazior EXPORT_SYMBOL(ieee80211_txq_get_depth); 4691f438ceb8SEmmanuel Grumbach 4692f438ceb8SEmmanuel Grumbach const u8 ieee80211_ac_to_qos_mask[IEEE80211_NUM_ACS] = { 4693f438ceb8SEmmanuel Grumbach IEEE80211_WMM_IE_STA_QOSINFO_AC_VO, 4694f438ceb8SEmmanuel Grumbach IEEE80211_WMM_IE_STA_QOSINFO_AC_VI, 4695f438ceb8SEmmanuel Grumbach IEEE80211_WMM_IE_STA_QOSINFO_AC_BE, 4696f438ceb8SEmmanuel Grumbach IEEE80211_WMM_IE_STA_QOSINFO_AC_BK 4697f438ceb8SEmmanuel Grumbach }; 469805d10957SThomas Pedersen 469905d10957SThomas Pedersen u16 ieee80211_encode_usf(int listen_interval) 470005d10957SThomas Pedersen { 470105d10957SThomas Pedersen static const int listen_int_usf[] = { 1, 10, 1000, 10000 }; 470205d10957SThomas Pedersen u16 ui, usf = 0; 470305d10957SThomas Pedersen 470405d10957SThomas Pedersen /* find greatest USF */ 470505d10957SThomas Pedersen while (usf < IEEE80211_MAX_USF) { 470605d10957SThomas Pedersen if (listen_interval % listen_int_usf[usf + 1]) 470705d10957SThomas Pedersen break; 470805d10957SThomas Pedersen usf += 1; 470905d10957SThomas Pedersen } 471005d10957SThomas Pedersen ui = listen_interval / listen_int_usf[usf]; 471105d10957SThomas Pedersen 471205d10957SThomas Pedersen /* error if there is a remainder. Should've been checked by user */ 471305d10957SThomas Pedersen WARN_ON_ONCE(ui > IEEE80211_MAX_UI); 471405d10957SThomas Pedersen listen_interval = FIELD_PREP(LISTEN_INT_USF, usf) | 471505d10957SThomas Pedersen FIELD_PREP(LISTEN_INT_UI, ui); 471605d10957SThomas Pedersen 471705d10957SThomas Pedersen return (u16) listen_interval; 471805d10957SThomas Pedersen } 4719820acc81SIlan Peer 4720820acc81SIlan Peer u8 ieee80211_ie_len_eht_cap(struct ieee80211_sub_if_data *sdata, u8 iftype) 4721820acc81SIlan Peer { 4722820acc81SIlan Peer const struct ieee80211_sta_he_cap *he_cap; 4723820acc81SIlan Peer const struct ieee80211_sta_eht_cap *eht_cap; 4724820acc81SIlan Peer struct ieee80211_supported_band *sband; 4725820acc81SIlan Peer u8 n; 4726820acc81SIlan Peer 4727820acc81SIlan Peer sband = ieee80211_get_sband(sdata); 4728820acc81SIlan Peer if (!sband) 4729820acc81SIlan Peer return 0; 4730820acc81SIlan Peer 4731820acc81SIlan Peer he_cap = ieee80211_get_he_iftype_cap(sband, iftype); 4732820acc81SIlan Peer eht_cap = ieee80211_get_eht_iftype_cap(sband, iftype); 4733820acc81SIlan Peer if (!he_cap || !eht_cap) 4734820acc81SIlan Peer return 0; 4735820acc81SIlan Peer 4736820acc81SIlan Peer n = ieee80211_eht_mcs_nss_size(&he_cap->he_cap_elem, 4737820acc81SIlan Peer &eht_cap->eht_cap_elem); 4738820acc81SIlan Peer return 2 + 1 + 4739820acc81SIlan Peer sizeof(he_cap->he_cap_elem) + n + 4740820acc81SIlan Peer ieee80211_eht_ppe_size(eht_cap->eht_ppe_thres[0], 4741820acc81SIlan Peer eht_cap->eht_cap_elem.phy_cap_info); 4742820acc81SIlan Peer return 0; 4743820acc81SIlan Peer } 4744820acc81SIlan Peer 4745820acc81SIlan Peer u8 *ieee80211_ie_build_eht_cap(u8 *pos, 4746820acc81SIlan Peer const struct ieee80211_sta_he_cap *he_cap, 4747820acc81SIlan Peer const struct ieee80211_sta_eht_cap *eht_cap, 4748820acc81SIlan Peer u8 *end) 4749820acc81SIlan Peer { 4750820acc81SIlan Peer u8 mcs_nss_len, ppet_len; 4751820acc81SIlan Peer u8 ie_len; 4752820acc81SIlan Peer u8 *orig_pos = pos; 4753820acc81SIlan Peer 4754820acc81SIlan Peer /* Make sure we have place for the IE */ 4755820acc81SIlan Peer if (!he_cap || !eht_cap) 4756820acc81SIlan Peer return orig_pos; 4757820acc81SIlan Peer 4758820acc81SIlan Peer mcs_nss_len = ieee80211_eht_mcs_nss_size(&he_cap->he_cap_elem, 4759820acc81SIlan Peer &eht_cap->eht_cap_elem); 4760820acc81SIlan Peer ppet_len = ieee80211_eht_ppe_size(eht_cap->eht_ppe_thres[0], 4761820acc81SIlan Peer eht_cap->eht_cap_elem.phy_cap_info); 4762820acc81SIlan Peer 4763820acc81SIlan Peer ie_len = 2 + 1 + sizeof(eht_cap->eht_cap_elem) + mcs_nss_len + ppet_len; 4764820acc81SIlan Peer if ((end - pos) < ie_len) 4765820acc81SIlan Peer return orig_pos; 4766820acc81SIlan Peer 4767820acc81SIlan Peer *pos++ = WLAN_EID_EXTENSION; 4768820acc81SIlan Peer *pos++ = ie_len - 2; 4769820acc81SIlan Peer *pos++ = WLAN_EID_EXT_EHT_CAPABILITY; 4770820acc81SIlan Peer 4771820acc81SIlan Peer /* Fixed data */ 4772820acc81SIlan Peer memcpy(pos, &eht_cap->eht_cap_elem, sizeof(eht_cap->eht_cap_elem)); 4773820acc81SIlan Peer pos += sizeof(eht_cap->eht_cap_elem); 4774820acc81SIlan Peer 4775820acc81SIlan Peer memcpy(pos, &eht_cap->eht_mcs_nss_supp, mcs_nss_len); 4776820acc81SIlan Peer pos += mcs_nss_len; 4777820acc81SIlan Peer 4778820acc81SIlan Peer if (ppet_len) { 4779820acc81SIlan Peer memcpy(pos, &eht_cap->eht_ppe_thres, ppet_len); 4780820acc81SIlan Peer pos += ppet_len; 4781820acc81SIlan Peer } 4782820acc81SIlan Peer 4783820acc81SIlan Peer return pos; 4784820acc81SIlan Peer } 4785