1c2d1560aSJohannes Berg /* 2c2d1560aSJohannes Berg * Copyright 2002-2005, Instant802 Networks, Inc. 3c2d1560aSJohannes Berg * Copyright 2005-2006, Devicescape Software, Inc. 4c2d1560aSJohannes Berg * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz> 5c2d1560aSJohannes Berg * Copyright 2007 Johannes Berg <johannes@sipsolutions.net> 6c2d1560aSJohannes Berg * 7c2d1560aSJohannes Berg * This program is free software; you can redistribute it and/or modify 8c2d1560aSJohannes Berg * it under the terms of the GNU General Public License version 2 as 9c2d1560aSJohannes Berg * published by the Free Software Foundation. 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 BUG_ON(!wiphy); 439a95371aSLuis R. Rodriguez 449a95371aSLuis R. Rodriguez local = wiphy_priv(wiphy); 459a95371aSLuis R. Rodriguez return &local->hw; 469a95371aSLuis R. Rodriguez } 479a95371aSLuis R. Rodriguez EXPORT_SYMBOL(wiphy_to_ieee80211_hw); 48c2d1560aSJohannes Berg 4971364716SRon Rindjunsky u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len, 5005c914feSJohannes Berg enum nl80211_iftype type) 51c2d1560aSJohannes Berg { 52a494bb1cSHarvey Harrison __le16 fc = hdr->frame_control; 53c2d1560aSJohannes Berg 5498f0b0a3SRon Rindjunsky /* drop ACK/CTS frames and incorrect hdr len (ctrl) */ 5598f0b0a3SRon Rindjunsky if (len < 16) 56c2d1560aSJohannes Berg return NULL; 57c2d1560aSJohannes Berg 58a494bb1cSHarvey Harrison if (ieee80211_is_data(fc)) { 5998f0b0a3SRon Rindjunsky if (len < 24) /* drop incorrect hdr len (data) */ 6098f0b0a3SRon Rindjunsky return NULL; 61a494bb1cSHarvey Harrison 62a494bb1cSHarvey Harrison if (ieee80211_has_a4(fc)) 63c2d1560aSJohannes Berg return NULL; 64a494bb1cSHarvey Harrison if (ieee80211_has_tods(fc)) 65a494bb1cSHarvey Harrison return hdr->addr1; 66a494bb1cSHarvey Harrison if (ieee80211_has_fromds(fc)) 67c2d1560aSJohannes Berg return hdr->addr2; 68a494bb1cSHarvey Harrison 69c2d1560aSJohannes Berg return hdr->addr3; 70c2d1560aSJohannes Berg } 71a494bb1cSHarvey Harrison 72a494bb1cSHarvey Harrison if (ieee80211_is_mgmt(fc)) { 7398f0b0a3SRon Rindjunsky if (len < 24) /* drop incorrect hdr len (mgmt) */ 7498f0b0a3SRon Rindjunsky return NULL; 75c2d1560aSJohannes Berg return hdr->addr3; 76a494bb1cSHarvey Harrison } 77a494bb1cSHarvey Harrison 78a494bb1cSHarvey Harrison if (ieee80211_is_ctl(fc)) { 79a494bb1cSHarvey Harrison if (ieee80211_is_pspoll(fc)) 80c2d1560aSJohannes Berg return hdr->addr1; 81a494bb1cSHarvey Harrison 82a494bb1cSHarvey Harrison if (ieee80211_is_back_req(fc)) { 8371364716SRon Rindjunsky switch (type) { 8405c914feSJohannes Berg case NL80211_IFTYPE_STATION: 8571364716SRon Rindjunsky return hdr->addr2; 8605c914feSJohannes Berg case NL80211_IFTYPE_AP: 8705c914feSJohannes Berg case NL80211_IFTYPE_AP_VLAN: 8871364716SRon Rindjunsky return hdr->addr1; 8971364716SRon Rindjunsky default: 90a494bb1cSHarvey Harrison break; /* fall through to the return */ 9171364716SRon Rindjunsky } 9271364716SRon Rindjunsky } 93c2d1560aSJohannes Berg } 94c2d1560aSJohannes Berg 95c2d1560aSJohannes Berg return NULL; 96c2d1560aSJohannes Berg } 97c2d1560aSJohannes Berg 985cf121c3SJohannes Berg void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx) 99c2d1560aSJohannes Berg { 100252b86c4SJohannes Berg struct sk_buff *skb; 1012de8e0d9SJohannes Berg struct ieee80211_hdr *hdr; 102c2d1560aSJohannes Berg 103252b86c4SJohannes Berg skb_queue_walk(&tx->skbs, skb) { 1042de8e0d9SJohannes Berg hdr = (struct ieee80211_hdr *) skb->data; 105c2d1560aSJohannes Berg hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED); 106252b86c4SJohannes Berg } 107c2d1560aSJohannes Berg } 108c2d1560aSJohannes Berg 1094ee73f33SMichal Kazior int ieee80211_frame_duration(enum ieee80211_band band, size_t len, 110438b61b7SSimon Wunderlich int rate, int erp, int short_preamble, 111438b61b7SSimon Wunderlich int shift) 112c2d1560aSJohannes Berg { 113c2d1560aSJohannes Berg int dur; 114c2d1560aSJohannes Berg 115c2d1560aSJohannes Berg /* calculate duration (in microseconds, rounded up to next higher 116c2d1560aSJohannes Berg * integer if it includes a fractional microsecond) to send frame of 117c2d1560aSJohannes Berg * len bytes (does not include FCS) at the given rate. Duration will 118c2d1560aSJohannes Berg * also include SIFS. 119c2d1560aSJohannes Berg * 120c2d1560aSJohannes Berg * rate is in 100 kbps, so divident is multiplied by 10 in the 121c2d1560aSJohannes Berg * DIV_ROUND_UP() operations. 122438b61b7SSimon Wunderlich * 123438b61b7SSimon Wunderlich * shift may be 2 for 5 MHz channels or 1 for 10 MHz channels, and 124438b61b7SSimon Wunderlich * is assumed to be 0 otherwise. 125c2d1560aSJohannes Berg */ 126c2d1560aSJohannes Berg 1274ee73f33SMichal Kazior if (band == IEEE80211_BAND_5GHZ || erp) { 128c2d1560aSJohannes Berg /* 129c2d1560aSJohannes Berg * OFDM: 130c2d1560aSJohannes Berg * 131c2d1560aSJohannes Berg * N_DBPS = DATARATE x 4 132c2d1560aSJohannes Berg * N_SYM = Ceiling((16+8xLENGTH+6) / N_DBPS) 133c2d1560aSJohannes Berg * (16 = SIGNAL time, 6 = tail bits) 134c2d1560aSJohannes Berg * TXTIME = T_PREAMBLE + T_SIGNAL + T_SYM x N_SYM + Signal Ext 135c2d1560aSJohannes Berg * 136c2d1560aSJohannes Berg * T_SYM = 4 usec 137438b61b7SSimon Wunderlich * 802.11a - 18.5.2: aSIFSTime = 16 usec 138c2d1560aSJohannes Berg * 802.11g - 19.8.4: aSIFSTime = 10 usec + 139c2d1560aSJohannes Berg * signal ext = 6 usec 140c2d1560aSJohannes Berg */ 141c2d1560aSJohannes Berg dur = 16; /* SIFS + signal ext */ 142438b61b7SSimon Wunderlich dur += 16; /* IEEE 802.11-2012 18.3.2.4: T_PREAMBLE = 16 usec */ 143438b61b7SSimon Wunderlich dur += 4; /* IEEE 802.11-2012 18.3.2.4: T_SIGNAL = 4 usec */ 144438b61b7SSimon Wunderlich 145438b61b7SSimon Wunderlich /* IEEE 802.11-2012 18.3.2.4: all values above are: 146438b61b7SSimon Wunderlich * * times 4 for 5 MHz 147438b61b7SSimon Wunderlich * * times 2 for 10 MHz 148438b61b7SSimon Wunderlich */ 149438b61b7SSimon Wunderlich dur *= 1 << shift; 1502103dec1SSimon Wunderlich 1512103dec1SSimon Wunderlich /* rates should already consider the channel bandwidth, 1522103dec1SSimon Wunderlich * don't apply divisor again. 1532103dec1SSimon Wunderlich */ 1542103dec1SSimon Wunderlich dur += 4 * DIV_ROUND_UP((16 + 8 * (len + 4) + 6) * 10, 1552103dec1SSimon Wunderlich 4 * rate); /* T_SYM x N_SYM */ 156c2d1560aSJohannes Berg } else { 157c2d1560aSJohannes Berg /* 158c2d1560aSJohannes Berg * 802.11b or 802.11g with 802.11b compatibility: 159c2d1560aSJohannes Berg * 18.3.4: TXTIME = PreambleLength + PLCPHeaderTime + 160c2d1560aSJohannes Berg * Ceiling(((LENGTH+PBCC)x8)/DATARATE). PBCC=0. 161c2d1560aSJohannes Berg * 162c2d1560aSJohannes Berg * 802.11 (DS): 15.3.3, 802.11b: 18.3.4 163c2d1560aSJohannes Berg * aSIFSTime = 10 usec 164c2d1560aSJohannes Berg * aPreambleLength = 144 usec or 72 usec with short preamble 165c2d1560aSJohannes Berg * aPLCPHeaderLength = 48 usec or 24 usec with short preamble 166c2d1560aSJohannes Berg */ 167c2d1560aSJohannes Berg dur = 10; /* aSIFSTime = 10 usec */ 168c2d1560aSJohannes Berg dur += short_preamble ? (72 + 24) : (144 + 48); 169c2d1560aSJohannes Berg 170c2d1560aSJohannes Berg dur += DIV_ROUND_UP(8 * (len + 4) * 10, rate); 171c2d1560aSJohannes Berg } 172c2d1560aSJohannes Berg 173c2d1560aSJohannes Berg return dur; 174c2d1560aSJohannes Berg } 175c2d1560aSJohannes Berg 176c2d1560aSJohannes Berg /* Exported duration function for driver use */ 17732bfd35dSJohannes Berg __le16 ieee80211_generic_frame_duration(struct ieee80211_hw *hw, 17832bfd35dSJohannes Berg struct ieee80211_vif *vif, 1794ee73f33SMichal Kazior enum ieee80211_band band, 1808318d78aSJohannes Berg size_t frame_len, 1818318d78aSJohannes Berg struct ieee80211_rate *rate) 182c2d1560aSJohannes Berg { 18325d834e1SJohannes Berg struct ieee80211_sub_if_data *sdata; 184c2d1560aSJohannes Berg u16 dur; 185438b61b7SSimon Wunderlich int erp, shift = 0; 18625d834e1SJohannes Berg bool short_preamble = false; 187c2d1560aSJohannes Berg 1888318d78aSJohannes Berg erp = 0; 18925d834e1SJohannes Berg if (vif) { 19025d834e1SJohannes Berg sdata = vif_to_sdata(vif); 191bda3933aSJohannes Berg short_preamble = sdata->vif.bss_conf.use_short_preamble; 1928318d78aSJohannes Berg if (sdata->flags & IEEE80211_SDATA_OPERATING_GMODE) 1938318d78aSJohannes Berg erp = rate->flags & IEEE80211_RATE_ERP_G; 194438b61b7SSimon Wunderlich shift = ieee80211_vif_get_shift(vif); 19525d834e1SJohannes Berg } 1968318d78aSJohannes Berg 1974ee73f33SMichal Kazior dur = ieee80211_frame_duration(band, frame_len, rate->bitrate, erp, 198438b61b7SSimon Wunderlich short_preamble, shift); 199c2d1560aSJohannes Berg 200c2d1560aSJohannes Berg return cpu_to_le16(dur); 201c2d1560aSJohannes Berg } 202c2d1560aSJohannes Berg EXPORT_SYMBOL(ieee80211_generic_frame_duration); 203c2d1560aSJohannes Berg 20432bfd35dSJohannes Berg __le16 ieee80211_rts_duration(struct ieee80211_hw *hw, 20532bfd35dSJohannes Berg struct ieee80211_vif *vif, size_t frame_len, 206e039fa4aSJohannes Berg const struct ieee80211_tx_info *frame_txctl) 207c2d1560aSJohannes Berg { 208c2d1560aSJohannes Berg struct ieee80211_local *local = hw_to_local(hw); 209c2d1560aSJohannes Berg struct ieee80211_rate *rate; 21025d834e1SJohannes Berg struct ieee80211_sub_if_data *sdata; 211471b3efdSJohannes Berg bool short_preamble; 2122103dec1SSimon Wunderlich int erp, shift = 0, bitrate; 213c2d1560aSJohannes Berg u16 dur; 2142e92e6f2SJohannes Berg struct ieee80211_supported_band *sband; 2152e92e6f2SJohannes Berg 2164ee73f33SMichal Kazior sband = local->hw.wiphy->bands[frame_txctl->band]; 217c2d1560aSJohannes Berg 21825d834e1SJohannes Berg short_preamble = false; 2197e9ed188SDaniel Drake 220e039fa4aSJohannes Berg rate = &sband->bitrates[frame_txctl->control.rts_cts_rate_idx]; 2218318d78aSJohannes Berg 2228318d78aSJohannes Berg erp = 0; 22325d834e1SJohannes Berg if (vif) { 22425d834e1SJohannes Berg sdata = vif_to_sdata(vif); 225bda3933aSJohannes Berg short_preamble = sdata->vif.bss_conf.use_short_preamble; 2268318d78aSJohannes Berg if (sdata->flags & IEEE80211_SDATA_OPERATING_GMODE) 2278318d78aSJohannes Berg erp = rate->flags & IEEE80211_RATE_ERP_G; 228438b61b7SSimon Wunderlich shift = ieee80211_vif_get_shift(vif); 22925d834e1SJohannes Berg } 230c2d1560aSJohannes Berg 2312103dec1SSimon Wunderlich bitrate = DIV_ROUND_UP(rate->bitrate, 1 << shift); 2322103dec1SSimon Wunderlich 233c2d1560aSJohannes Berg /* CTS duration */ 2342103dec1SSimon Wunderlich dur = ieee80211_frame_duration(sband->band, 10, bitrate, 235438b61b7SSimon Wunderlich erp, short_preamble, shift); 236c2d1560aSJohannes Berg /* Data frame duration */ 2372103dec1SSimon Wunderlich dur += ieee80211_frame_duration(sband->band, frame_len, bitrate, 238438b61b7SSimon Wunderlich erp, short_preamble, shift); 239c2d1560aSJohannes Berg /* ACK duration */ 2402103dec1SSimon Wunderlich dur += ieee80211_frame_duration(sband->band, 10, bitrate, 241438b61b7SSimon Wunderlich erp, short_preamble, shift); 242c2d1560aSJohannes Berg 243c2d1560aSJohannes Berg return cpu_to_le16(dur); 244c2d1560aSJohannes Berg } 245c2d1560aSJohannes Berg EXPORT_SYMBOL(ieee80211_rts_duration); 246c2d1560aSJohannes Berg 24732bfd35dSJohannes Berg __le16 ieee80211_ctstoself_duration(struct ieee80211_hw *hw, 24832bfd35dSJohannes Berg struct ieee80211_vif *vif, 249c2d1560aSJohannes Berg size_t frame_len, 250e039fa4aSJohannes Berg const struct ieee80211_tx_info *frame_txctl) 251c2d1560aSJohannes Berg { 252c2d1560aSJohannes Berg struct ieee80211_local *local = hw_to_local(hw); 253c2d1560aSJohannes Berg struct ieee80211_rate *rate; 25425d834e1SJohannes Berg struct ieee80211_sub_if_data *sdata; 255471b3efdSJohannes Berg bool short_preamble; 2562103dec1SSimon Wunderlich int erp, shift = 0, bitrate; 257c2d1560aSJohannes Berg u16 dur; 2582e92e6f2SJohannes Berg struct ieee80211_supported_band *sband; 2592e92e6f2SJohannes Berg 2604ee73f33SMichal Kazior sband = local->hw.wiphy->bands[frame_txctl->band]; 261c2d1560aSJohannes Berg 26225d834e1SJohannes Berg short_preamble = false; 2637e9ed188SDaniel Drake 264e039fa4aSJohannes Berg rate = &sband->bitrates[frame_txctl->control.rts_cts_rate_idx]; 2658318d78aSJohannes Berg erp = 0; 26625d834e1SJohannes Berg if (vif) { 26725d834e1SJohannes Berg sdata = vif_to_sdata(vif); 268bda3933aSJohannes Berg short_preamble = sdata->vif.bss_conf.use_short_preamble; 2698318d78aSJohannes Berg if (sdata->flags & IEEE80211_SDATA_OPERATING_GMODE) 2708318d78aSJohannes Berg erp = rate->flags & IEEE80211_RATE_ERP_G; 271438b61b7SSimon Wunderlich shift = ieee80211_vif_get_shift(vif); 27225d834e1SJohannes Berg } 273c2d1560aSJohannes Berg 2742103dec1SSimon Wunderlich bitrate = DIV_ROUND_UP(rate->bitrate, 1 << shift); 2752103dec1SSimon Wunderlich 276c2d1560aSJohannes Berg /* Data frame duration */ 2772103dec1SSimon Wunderlich dur = ieee80211_frame_duration(sband->band, frame_len, bitrate, 278438b61b7SSimon Wunderlich erp, short_preamble, shift); 279e039fa4aSJohannes Berg if (!(frame_txctl->flags & IEEE80211_TX_CTL_NO_ACK)) { 280c2d1560aSJohannes Berg /* ACK duration */ 2812103dec1SSimon Wunderlich dur += ieee80211_frame_duration(sband->band, 10, bitrate, 282438b61b7SSimon Wunderlich erp, short_preamble, shift); 283c2d1560aSJohannes Berg } 284c2d1560aSJohannes Berg 285c2d1560aSJohannes Berg return cpu_to_le16(dur); 286c2d1560aSJohannes Berg } 287c2d1560aSJohannes Berg EXPORT_SYMBOL(ieee80211_ctstoself_duration); 288c2d1560aSJohannes Berg 2893a25a8c8SJohannes Berg void ieee80211_propagate_queue_wake(struct ieee80211_local *local, int queue) 2903a25a8c8SJohannes Berg { 2913a25a8c8SJohannes Berg struct ieee80211_sub_if_data *sdata; 292a6f38ac3SJohannes Berg int n_acs = IEEE80211_NUM_ACS; 293a6f38ac3SJohannes Berg 294a6f38ac3SJohannes Berg if (local->hw.queues < IEEE80211_NUM_ACS) 295a6f38ac3SJohannes Berg n_acs = 1; 2963a25a8c8SJohannes Berg 2973a25a8c8SJohannes Berg list_for_each_entry_rcu(sdata, &local->interfaces, list) { 2983a25a8c8SJohannes Berg int ac; 2993a25a8c8SJohannes Berg 300f142c6b9SJohannes Berg if (!sdata->dev) 301f142c6b9SJohannes Berg continue; 302f142c6b9SJohannes Berg 3033a25a8c8SJohannes Berg if (sdata->vif.cab_queue != IEEE80211_INVAL_HW_QUEUE && 3043a25a8c8SJohannes Berg local->queue_stop_reasons[sdata->vif.cab_queue] != 0) 3053a25a8c8SJohannes Berg continue; 3063a25a8c8SJohannes Berg 307a6f38ac3SJohannes Berg for (ac = 0; ac < n_acs; ac++) { 3083a25a8c8SJohannes Berg int ac_queue = sdata->vif.hw_queue[ac]; 3093a25a8c8SJohannes Berg 3103a25a8c8SJohannes Berg if (ac_queue == queue || 3113a25a8c8SJohannes Berg (sdata->vif.cab_queue == queue && 3123a25a8c8SJohannes Berg local->queue_stop_reasons[ac_queue] == 0 && 3133a25a8c8SJohannes Berg skb_queue_empty(&local->pending[ac_queue]))) 3143a25a8c8SJohannes Berg netif_wake_subqueue(sdata->dev, ac); 3153a25a8c8SJohannes Berg } 3163a25a8c8SJohannes Berg } 3173a25a8c8SJohannes Berg } 3183a25a8c8SJohannes Berg 319ce7c9111SKalle Valo static void __ieee80211_wake_queue(struct ieee80211_hw *hw, int queue, 320cca07b00SLuciano Coelho enum queue_stop_reason reason, 321cca07b00SLuciano Coelho bool refcounted) 322c2d1560aSJohannes Berg { 323c2d1560aSJohannes Berg struct ieee80211_local *local = hw_to_local(hw); 324c2d1560aSJohannes Berg 325b5878a2dSJohannes Berg trace_wake_queue(local, queue, reason); 326b5878a2dSJohannes Berg 327e4e72fb4SJohannes Berg if (WARN_ON(queue >= hw->queues)) 32896f5e66eSJohannes Berg return; 32996f5e66eSJohannes Berg 330ada15125SJohannes Berg if (!test_bit(reason, &local->queue_stop_reasons[queue])) 331ada15125SJohannes Berg return; 332ada15125SJohannes Berg 333cca07b00SLuciano Coelho if (!refcounted) 334cca07b00SLuciano Coelho local->q_stop_reasons[queue][reason] = 0; 335cca07b00SLuciano Coelho else 336cca07b00SLuciano Coelho local->q_stop_reasons[queue][reason]--; 337cca07b00SLuciano Coelho 338cca07b00SLuciano Coelho if (local->q_stop_reasons[queue][reason] == 0) 339ce7c9111SKalle Valo __clear_bit(reason, &local->queue_stop_reasons[queue]); 340ce7c9111SKalle Valo 341ce7c9111SKalle Valo if (local->queue_stop_reasons[queue] != 0) 342ce7c9111SKalle Valo /* someone still has this queue stopped */ 343ce7c9111SKalle Valo return; 344ce7c9111SKalle Valo 3457236fe29SJohannes Berg if (skb_queue_empty(&local->pending[queue])) { 346cf0277e7SJohannes Berg rcu_read_lock(); 3473a25a8c8SJohannes Berg ieee80211_propagate_queue_wake(local, queue); 348cf0277e7SJohannes Berg rcu_read_unlock(); 3497236fe29SJohannes Berg } else 3507236fe29SJohannes Berg tasklet_schedule(&local->tx_pending_tasklet); 351c2d1560aSJohannes Berg } 352ce7c9111SKalle Valo 35396f5e66eSJohannes Berg void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue, 354cca07b00SLuciano Coelho enum queue_stop_reason reason, 355cca07b00SLuciano Coelho bool refcounted) 356ce7c9111SKalle Valo { 357ce7c9111SKalle Valo struct ieee80211_local *local = hw_to_local(hw); 358ce7c9111SKalle Valo unsigned long flags; 359ce7c9111SKalle Valo 360ce7c9111SKalle Valo spin_lock_irqsave(&local->queue_stop_reason_lock, flags); 361cca07b00SLuciano Coelho __ieee80211_wake_queue(hw, queue, reason, refcounted); 362ce7c9111SKalle Valo spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); 363ce7c9111SKalle Valo } 364ce7c9111SKalle Valo 365ce7c9111SKalle Valo void ieee80211_wake_queue(struct ieee80211_hw *hw, int queue) 366ce7c9111SKalle Valo { 367ce7c9111SKalle Valo ieee80211_wake_queue_by_reason(hw, queue, 368cca07b00SLuciano Coelho IEEE80211_QUEUE_STOP_REASON_DRIVER, 369cca07b00SLuciano Coelho false); 370ce7c9111SKalle Valo } 371c2d1560aSJohannes Berg EXPORT_SYMBOL(ieee80211_wake_queue); 372c2d1560aSJohannes Berg 373ce7c9111SKalle Valo static void __ieee80211_stop_queue(struct ieee80211_hw *hw, int queue, 374cca07b00SLuciano Coelho enum queue_stop_reason reason, 375cca07b00SLuciano Coelho bool refcounted) 376c2d1560aSJohannes Berg { 377c2d1560aSJohannes Berg struct ieee80211_local *local = hw_to_local(hw); 378cf0277e7SJohannes Berg struct ieee80211_sub_if_data *sdata; 379a6f38ac3SJohannes Berg int n_acs = IEEE80211_NUM_ACS; 380c2d1560aSJohannes Berg 381b5878a2dSJohannes Berg trace_stop_queue(local, queue, reason); 382b5878a2dSJohannes Berg 383e4e72fb4SJohannes Berg if (WARN_ON(queue >= hw->queues)) 38496f5e66eSJohannes Berg return; 38596f5e66eSJohannes Berg 386cca07b00SLuciano Coelho if (!refcounted) 387cca07b00SLuciano Coelho local->q_stop_reasons[queue][reason] = 1; 388cca07b00SLuciano Coelho else 389cca07b00SLuciano Coelho local->q_stop_reasons[queue][reason]++; 390ada15125SJohannes Berg 391cca07b00SLuciano Coelho if (__test_and_set_bit(reason, &local->queue_stop_reasons[queue])) 392cca07b00SLuciano Coelho return; 393cf0277e7SJohannes Berg 394a6f38ac3SJohannes Berg if (local->hw.queues < IEEE80211_NUM_ACS) 395a6f38ac3SJohannes Berg n_acs = 1; 396a6f38ac3SJohannes Berg 397cf0277e7SJohannes Berg rcu_read_lock(); 3983a25a8c8SJohannes Berg list_for_each_entry_rcu(sdata, &local->interfaces, list) { 3993a25a8c8SJohannes Berg int ac; 4003a25a8c8SJohannes Berg 401f142c6b9SJohannes Berg if (!sdata->dev) 402f142c6b9SJohannes Berg continue; 403f142c6b9SJohannes Berg 404a6f38ac3SJohannes Berg for (ac = 0; ac < n_acs; ac++) { 4053a25a8c8SJohannes Berg if (sdata->vif.hw_queue[ac] == queue || 4063a25a8c8SJohannes Berg sdata->vif.cab_queue == queue) 4073a25a8c8SJohannes Berg netif_stop_subqueue(sdata->dev, ac); 4083a25a8c8SJohannes Berg } 4093a25a8c8SJohannes Berg } 410cf0277e7SJohannes Berg rcu_read_unlock(); 411c2d1560aSJohannes Berg } 412ce7c9111SKalle Valo 41396f5e66eSJohannes Berg void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue, 414cca07b00SLuciano Coelho enum queue_stop_reason reason, 415cca07b00SLuciano Coelho bool refcounted) 416ce7c9111SKalle Valo { 417ce7c9111SKalle Valo struct ieee80211_local *local = hw_to_local(hw); 418ce7c9111SKalle Valo unsigned long flags; 419ce7c9111SKalle Valo 420ce7c9111SKalle Valo spin_lock_irqsave(&local->queue_stop_reason_lock, flags); 421cca07b00SLuciano Coelho __ieee80211_stop_queue(hw, queue, reason, refcounted); 422ce7c9111SKalle Valo spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); 423ce7c9111SKalle Valo } 424ce7c9111SKalle Valo 425ce7c9111SKalle Valo void ieee80211_stop_queue(struct ieee80211_hw *hw, int queue) 426ce7c9111SKalle Valo { 427ce7c9111SKalle Valo ieee80211_stop_queue_by_reason(hw, queue, 428cca07b00SLuciano Coelho IEEE80211_QUEUE_STOP_REASON_DRIVER, 429cca07b00SLuciano Coelho false); 430ce7c9111SKalle Valo } 431c2d1560aSJohannes Berg EXPORT_SYMBOL(ieee80211_stop_queue); 432c2d1560aSJohannes Berg 4338f77f384SJohannes Berg void ieee80211_add_pending_skb(struct ieee80211_local *local, 4348f77f384SJohannes Berg struct sk_buff *skb) 4358f77f384SJohannes Berg { 4368f77f384SJohannes Berg struct ieee80211_hw *hw = &local->hw; 4378f77f384SJohannes Berg unsigned long flags; 438a7bc376cSJohannes Berg struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 4393a25a8c8SJohannes Berg int queue = info->hw_queue; 440a7bc376cSJohannes Berg 441a7bc376cSJohannes Berg if (WARN_ON(!info->control.vif)) { 442d4fa14cdSFelix Fietkau ieee80211_free_txskb(&local->hw, skb); 443a7bc376cSJohannes Berg return; 444a7bc376cSJohannes Berg } 4458f77f384SJohannes Berg 4468f77f384SJohannes Berg spin_lock_irqsave(&local->queue_stop_reason_lock, flags); 447cca07b00SLuciano Coelho __ieee80211_stop_queue(hw, queue, IEEE80211_QUEUE_STOP_REASON_SKB_ADD, 448cca07b00SLuciano Coelho false); 4493b8d81e0SJohannes Berg __skb_queue_tail(&local->pending[queue], skb); 450cca07b00SLuciano Coelho __ieee80211_wake_queue(hw, queue, IEEE80211_QUEUE_STOP_REASON_SKB_ADD, 451cca07b00SLuciano Coelho false); 4528f77f384SJohannes Berg spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); 4538f77f384SJohannes Berg } 4548f77f384SJohannes Berg 455e3685e03SJohannes Berg void ieee80211_add_pending_skbs(struct ieee80211_local *local, 456e3685e03SJohannes Berg struct sk_buff_head *skbs) 4578f77f384SJohannes Berg { 4588f77f384SJohannes Berg struct ieee80211_hw *hw = &local->hw; 4598f77f384SJohannes Berg struct sk_buff *skb; 4608f77f384SJohannes Berg unsigned long flags; 461b0b97a8aSJohannes Berg int queue, i; 4628f77f384SJohannes Berg 4638f77f384SJohannes Berg spin_lock_irqsave(&local->queue_stop_reason_lock, flags); 4648f77f384SJohannes Berg while ((skb = skb_dequeue(skbs))) { 465a7bc376cSJohannes Berg struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 466a7bc376cSJohannes Berg 467a7bc376cSJohannes Berg if (WARN_ON(!info->control.vif)) { 468d4fa14cdSFelix Fietkau ieee80211_free_txskb(&local->hw, skb); 469a7bc376cSJohannes Berg continue; 470a7bc376cSJohannes Berg } 471a7bc376cSJohannes Berg 4723a25a8c8SJohannes Berg queue = info->hw_queue; 4734644ae89SJohannes Berg 4744644ae89SJohannes Berg __ieee80211_stop_queue(hw, queue, 475cca07b00SLuciano Coelho IEEE80211_QUEUE_STOP_REASON_SKB_ADD, 476cca07b00SLuciano Coelho false); 4774644ae89SJohannes Berg 4783b8d81e0SJohannes Berg __skb_queue_tail(&local->pending[queue], skb); 4798f77f384SJohannes Berg } 4808f77f384SJohannes Berg 4813b8d81e0SJohannes Berg for (i = 0; i < hw->queues; i++) 4828f77f384SJohannes Berg __ieee80211_wake_queue(hw, i, 483cca07b00SLuciano Coelho IEEE80211_QUEUE_STOP_REASON_SKB_ADD, 484cca07b00SLuciano Coelho false); 4858f77f384SJohannes Berg spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); 4868f77f384SJohannes Berg } 4878f77f384SJohannes Berg 488ce7c9111SKalle Valo void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw, 489445ea4e8SJohannes Berg unsigned long queues, 490cca07b00SLuciano Coelho enum queue_stop_reason reason, 491cca07b00SLuciano Coelho bool refcounted) 492c2d1560aSJohannes Berg { 493ce7c9111SKalle Valo struct ieee80211_local *local = hw_to_local(hw); 494ce7c9111SKalle Valo unsigned long flags; 495c2d1560aSJohannes Berg int i; 496c2d1560aSJohannes Berg 497ce7c9111SKalle Valo spin_lock_irqsave(&local->queue_stop_reason_lock, flags); 498ce7c9111SKalle Valo 499445ea4e8SJohannes Berg for_each_set_bit(i, &queues, hw->queues) 500cca07b00SLuciano Coelho __ieee80211_stop_queue(hw, i, reason, refcounted); 501ce7c9111SKalle Valo 502ce7c9111SKalle Valo spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); 503ce7c9111SKalle Valo } 504ce7c9111SKalle Valo 505ce7c9111SKalle Valo void ieee80211_stop_queues(struct ieee80211_hw *hw) 506ce7c9111SKalle Valo { 507445ea4e8SJohannes Berg ieee80211_stop_queues_by_reason(hw, IEEE80211_MAX_QUEUE_MAP, 508cca07b00SLuciano Coelho IEEE80211_QUEUE_STOP_REASON_DRIVER, 509cca07b00SLuciano Coelho false); 510c2d1560aSJohannes Berg } 511c2d1560aSJohannes Berg EXPORT_SYMBOL(ieee80211_stop_queues); 512c2d1560aSJohannes Berg 51392ab8535STomas Winkler int ieee80211_queue_stopped(struct ieee80211_hw *hw, int queue) 51492ab8535STomas Winkler { 51592ab8535STomas Winkler struct ieee80211_local *local = hw_to_local(hw); 5163b8d81e0SJohannes Berg unsigned long flags; 5173b8d81e0SJohannes Berg int ret; 51896f5e66eSJohannes Berg 519e4e72fb4SJohannes Berg if (WARN_ON(queue >= hw->queues)) 52096f5e66eSJohannes Berg return true; 52196f5e66eSJohannes Berg 5223b8d81e0SJohannes Berg spin_lock_irqsave(&local->queue_stop_reason_lock, flags); 5232419ea14SThomas Pedersen ret = test_bit(IEEE80211_QUEUE_STOP_REASON_DRIVER, 5242419ea14SThomas Pedersen &local->queue_stop_reasons[queue]); 5253b8d81e0SJohannes Berg spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); 5263b8d81e0SJohannes Berg return ret; 52792ab8535STomas Winkler } 52892ab8535STomas Winkler EXPORT_SYMBOL(ieee80211_queue_stopped); 52992ab8535STomas Winkler 530ce7c9111SKalle Valo void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw, 531445ea4e8SJohannes Berg unsigned long queues, 532cca07b00SLuciano Coelho enum queue_stop_reason reason, 533cca07b00SLuciano Coelho bool refcounted) 534c2d1560aSJohannes Berg { 535ce7c9111SKalle Valo struct ieee80211_local *local = hw_to_local(hw); 536ce7c9111SKalle Valo unsigned long flags; 537c2d1560aSJohannes Berg int i; 538c2d1560aSJohannes Berg 539ce7c9111SKalle Valo spin_lock_irqsave(&local->queue_stop_reason_lock, flags); 540ce7c9111SKalle Valo 541445ea4e8SJohannes Berg for_each_set_bit(i, &queues, hw->queues) 542cca07b00SLuciano Coelho __ieee80211_wake_queue(hw, i, reason, refcounted); 543ce7c9111SKalle Valo 544ce7c9111SKalle Valo spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); 545ce7c9111SKalle Valo } 546ce7c9111SKalle Valo 547ce7c9111SKalle Valo void ieee80211_wake_queues(struct ieee80211_hw *hw) 548ce7c9111SKalle Valo { 549445ea4e8SJohannes Berg ieee80211_wake_queues_by_reason(hw, IEEE80211_MAX_QUEUE_MAP, 550cca07b00SLuciano Coelho IEEE80211_QUEUE_STOP_REASON_DRIVER, 551cca07b00SLuciano Coelho false); 552c2d1560aSJohannes Berg } 553c2d1560aSJohannes Berg EXPORT_SYMBOL(ieee80211_wake_queues); 554dabeb344SJohannes Berg 55539ecc01dSJohannes Berg void ieee80211_flush_queues(struct ieee80211_local *local, 55639ecc01dSJohannes Berg struct ieee80211_sub_if_data *sdata) 55739ecc01dSJohannes Berg { 55839ecc01dSJohannes Berg u32 queues; 55939ecc01dSJohannes Berg 56039ecc01dSJohannes Berg if (!local->ops->flush) 56139ecc01dSJohannes Berg return; 56239ecc01dSJohannes Berg 56339ecc01dSJohannes Berg if (sdata && local->hw.flags & IEEE80211_HW_QUEUE_CONTROL) { 56439ecc01dSJohannes Berg int ac; 56539ecc01dSJohannes Berg 56639ecc01dSJohannes Berg queues = 0; 56739ecc01dSJohannes Berg 56839ecc01dSJohannes Berg for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) 56939ecc01dSJohannes Berg queues |= BIT(sdata->vif.hw_queue[ac]); 57039ecc01dSJohannes Berg if (sdata->vif.cab_queue != IEEE80211_INVAL_HW_QUEUE) 57139ecc01dSJohannes Berg queues |= BIT(sdata->vif.cab_queue); 57239ecc01dSJohannes Berg } else { 57339ecc01dSJohannes Berg /* all queues */ 57439ecc01dSJohannes Berg queues = BIT(local->hw.queues) - 1; 57539ecc01dSJohannes Berg } 57639ecc01dSJohannes Berg 57759f48fe2SLuciano Coelho ieee80211_stop_queues_by_reason(&local->hw, queues, 578cca07b00SLuciano Coelho IEEE80211_QUEUE_STOP_REASON_FLUSH, 579cca07b00SLuciano Coelho false); 580445ea4e8SJohannes Berg 58177be2c54SEmmanuel Grumbach drv_flush(local, sdata, queues, false); 582445ea4e8SJohannes Berg 58359f48fe2SLuciano Coelho ieee80211_wake_queues_by_reason(&local->hw, queues, 584cca07b00SLuciano Coelho IEEE80211_QUEUE_STOP_REASON_FLUSH, 585cca07b00SLuciano Coelho false); 58639ecc01dSJohannes Berg } 58739ecc01dSJohannes Berg 588c7c71066SJohannes Berg static void __iterate_active_interfaces(struct ieee80211_local *local, 589c7c71066SJohannes Berg u32 iter_flags, 590dabeb344SJohannes Berg void (*iterator)(void *data, u8 *mac, 59132bfd35dSJohannes Berg struct ieee80211_vif *vif), 592dabeb344SJohannes Berg void *data) 593dabeb344SJohannes Berg { 594dabeb344SJohannes Berg struct ieee80211_sub_if_data *sdata; 595dabeb344SJohannes Berg 596e38bad47SJohannes Berg list_for_each_entry_rcu(sdata, &local->interfaces, list) { 59751fb61e7SJohannes Berg switch (sdata->vif.type) { 59805c914feSJohannes Berg case NL80211_IFTYPE_MONITOR: 59931eba5bcSFelix Fietkau if (!(sdata->u.mntr_flags & MONITOR_FLAG_ACTIVE)) 60031eba5bcSFelix Fietkau continue; 60131eba5bcSFelix Fietkau break; 60205c914feSJohannes Berg case NL80211_IFTYPE_AP_VLAN: 603dabeb344SJohannes Berg continue; 6042ca27bcfSJohannes Berg default: 605dabeb344SJohannes Berg break; 606dabeb344SJohannes Berg } 6078b2c9824SJohannes Berg if (!(iter_flags & IEEE80211_IFACE_ITER_RESUME_ALL) && 6088b2c9824SJohannes Berg !(sdata->flags & IEEE80211_SDATA_IN_DRIVER)) 6098b2c9824SJohannes Berg continue; 6109607e6b6SJohannes Berg if (ieee80211_sdata_running(sdata)) 61147846c9bSJohannes Berg iterator(data, sdata->vif.addr, 61232bfd35dSJohannes Berg &sdata->vif); 613dabeb344SJohannes Berg } 614e38bad47SJohannes Berg 615c7c71066SJohannes Berg sdata = rcu_dereference_check(local->monitor_sdata, 616c7c71066SJohannes Berg lockdep_is_held(&local->iflist_mtx) || 617c7c71066SJohannes Berg lockdep_rtnl_is_held()); 6188b2c9824SJohannes Berg if (sdata && 6198b2c9824SJohannes Berg (iter_flags & IEEE80211_IFACE_ITER_RESUME_ALL || 6208b2c9824SJohannes Berg sdata->flags & IEEE80211_SDATA_IN_DRIVER)) 621685fb72bSJohannes Berg iterator(data, sdata->vif.addr, &sdata->vif); 622c7c71066SJohannes Berg } 623685fb72bSJohannes Berg 624c7c71066SJohannes Berg void ieee80211_iterate_active_interfaces( 625c7c71066SJohannes Berg struct ieee80211_hw *hw, u32 iter_flags, 626c7c71066SJohannes Berg void (*iterator)(void *data, u8 *mac, 627c7c71066SJohannes Berg struct ieee80211_vif *vif), 628c7c71066SJohannes Berg void *data) 629c7c71066SJohannes Berg { 630c7c71066SJohannes Berg struct ieee80211_local *local = hw_to_local(hw); 631c7c71066SJohannes Berg 632c7c71066SJohannes Berg mutex_lock(&local->iflist_mtx); 633c7c71066SJohannes Berg __iterate_active_interfaces(local, iter_flags, iterator, data); 634c7c71066SJohannes Berg mutex_unlock(&local->iflist_mtx); 635c7c71066SJohannes Berg } 636c7c71066SJohannes Berg EXPORT_SYMBOL_GPL(ieee80211_iterate_active_interfaces); 637c7c71066SJohannes Berg 638c7c71066SJohannes Berg void ieee80211_iterate_active_interfaces_atomic( 639c7c71066SJohannes Berg struct ieee80211_hw *hw, u32 iter_flags, 640c7c71066SJohannes Berg void (*iterator)(void *data, u8 *mac, 641c7c71066SJohannes Berg struct ieee80211_vif *vif), 642c7c71066SJohannes Berg void *data) 643c7c71066SJohannes Berg { 644c7c71066SJohannes Berg struct ieee80211_local *local = hw_to_local(hw); 645c7c71066SJohannes Berg 646c7c71066SJohannes Berg rcu_read_lock(); 647c7c71066SJohannes Berg __iterate_active_interfaces(local, iter_flags, iterator, data); 648e38bad47SJohannes Berg rcu_read_unlock(); 649dabeb344SJohannes Berg } 6502f561febSIvo van Doorn EXPORT_SYMBOL_GPL(ieee80211_iterate_active_interfaces_atomic); 65137ffc8daSJohannes Berg 652c7c71066SJohannes Berg void ieee80211_iterate_active_interfaces_rtnl( 653c7c71066SJohannes Berg struct ieee80211_hw *hw, u32 iter_flags, 654c7c71066SJohannes Berg void (*iterator)(void *data, u8 *mac, 655c7c71066SJohannes Berg struct ieee80211_vif *vif), 656c7c71066SJohannes Berg void *data) 657c7c71066SJohannes Berg { 658c7c71066SJohannes Berg struct ieee80211_local *local = hw_to_local(hw); 659c7c71066SJohannes Berg 660c7c71066SJohannes Berg ASSERT_RTNL(); 661c7c71066SJohannes Berg 662c7c71066SJohannes Berg __iterate_active_interfaces(local, iter_flags, iterator, data); 663c7c71066SJohannes Berg } 664c7c71066SJohannes Berg EXPORT_SYMBOL_GPL(ieee80211_iterate_active_interfaces_rtnl); 665c7c71066SJohannes Berg 666ad7e718cSJohannes Berg struct ieee80211_vif *wdev_to_ieee80211_vif(struct wireless_dev *wdev) 667ad7e718cSJohannes Berg { 668ad7e718cSJohannes Berg struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 669ad7e718cSJohannes Berg 670ad7e718cSJohannes Berg if (!ieee80211_sdata_running(sdata) || 671ad7e718cSJohannes Berg !(sdata->flags & IEEE80211_SDATA_IN_DRIVER)) 672ad7e718cSJohannes Berg return NULL; 673ad7e718cSJohannes Berg return &sdata->vif; 674ad7e718cSJohannes Berg } 675ad7e718cSJohannes Berg EXPORT_SYMBOL_GPL(wdev_to_ieee80211_vif); 676ad7e718cSJohannes Berg 67742935ecaSLuis R. Rodriguez /* 67842935ecaSLuis R. Rodriguez * Nothing should have been stuffed into the workqueue during 67942935ecaSLuis R. Rodriguez * the suspend->resume cycle. If this WARN is seen then there 68042935ecaSLuis R. Rodriguez * is a bug with either the driver suspend or something in 68142935ecaSLuis R. Rodriguez * mac80211 stuffing into the workqueue which we haven't yet 68242935ecaSLuis R. Rodriguez * cleared during mac80211's suspend cycle. 68342935ecaSLuis R. Rodriguez */ 68442935ecaSLuis R. Rodriguez static bool ieee80211_can_queue_work(struct ieee80211_local *local) 68542935ecaSLuis R. Rodriguez { 686ceb99fe0SJohannes Berg if (WARN(local->suspended && !local->resuming, 687ceb99fe0SJohannes Berg "queueing ieee80211 work while going to suspend\n")) 68842935ecaSLuis R. Rodriguez return false; 68942935ecaSLuis R. Rodriguez 69042935ecaSLuis R. Rodriguez return true; 69142935ecaSLuis R. Rodriguez } 69242935ecaSLuis R. Rodriguez 69342935ecaSLuis R. Rodriguez void ieee80211_queue_work(struct ieee80211_hw *hw, struct work_struct *work) 69442935ecaSLuis R. Rodriguez { 69542935ecaSLuis R. Rodriguez struct ieee80211_local *local = hw_to_local(hw); 69642935ecaSLuis R. Rodriguez 69742935ecaSLuis R. Rodriguez if (!ieee80211_can_queue_work(local)) 69842935ecaSLuis R. Rodriguez return; 69942935ecaSLuis R. Rodriguez 70042935ecaSLuis R. Rodriguez queue_work(local->workqueue, work); 70142935ecaSLuis R. Rodriguez } 70242935ecaSLuis R. Rodriguez EXPORT_SYMBOL(ieee80211_queue_work); 70342935ecaSLuis R. Rodriguez 70442935ecaSLuis R. Rodriguez void ieee80211_queue_delayed_work(struct ieee80211_hw *hw, 70542935ecaSLuis R. Rodriguez struct delayed_work *dwork, 70642935ecaSLuis R. Rodriguez unsigned long delay) 70742935ecaSLuis R. Rodriguez { 70842935ecaSLuis R. Rodriguez struct ieee80211_local *local = hw_to_local(hw); 70942935ecaSLuis R. Rodriguez 71042935ecaSLuis R. Rodriguez if (!ieee80211_can_queue_work(local)) 71142935ecaSLuis R. Rodriguez return; 71242935ecaSLuis R. Rodriguez 71342935ecaSLuis R. Rodriguez queue_delayed_work(local->workqueue, dwork, delay); 71442935ecaSLuis R. Rodriguez } 71542935ecaSLuis R. Rodriguez EXPORT_SYMBOL(ieee80211_queue_delayed_work); 71642935ecaSLuis R. Rodriguez 71735d865afSJohannes Berg u32 ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action, 718dd76986bSJohannes Berg struct ieee802_11_elems *elems, 719dd76986bSJohannes Berg u64 filter, u32 crc) 720dd76986bSJohannes Berg { 721dd76986bSJohannes Berg size_t left = len; 72235d865afSJohannes Berg const u8 *pos = start; 723dd76986bSJohannes Berg bool calc_crc = filter != 0; 724fcff4f10SPaul Stewart DECLARE_BITMAP(seen_elems, 256); 725b2e506bfSJohannes Berg const u8 *ie; 726dd76986bSJohannes Berg 727fcff4f10SPaul Stewart bitmap_zero(seen_elems, 256); 728dd76986bSJohannes Berg memset(elems, 0, sizeof(*elems)); 729dd76986bSJohannes Berg elems->ie_start = start; 730dd76986bSJohannes Berg elems->total_len = len; 731dd76986bSJohannes Berg 732dd76986bSJohannes Berg while (left >= 2) { 733dd76986bSJohannes Berg u8 id, elen; 734fcff4f10SPaul Stewart bool elem_parse_failed; 735dd76986bSJohannes Berg 736dd76986bSJohannes Berg id = *pos++; 737dd76986bSJohannes Berg elen = *pos++; 738dd76986bSJohannes Berg left -= 2; 739dd76986bSJohannes Berg 740fcff4f10SPaul Stewart if (elen > left) { 741fcff4f10SPaul Stewart elems->parse_error = true; 742dd76986bSJohannes Berg break; 743fcff4f10SPaul Stewart } 744fcff4f10SPaul Stewart 7459690fb16SJohannes Berg switch (id) { 7469690fb16SJohannes Berg case WLAN_EID_SSID: 7479690fb16SJohannes Berg case WLAN_EID_SUPP_RATES: 7489690fb16SJohannes Berg case WLAN_EID_FH_PARAMS: 7499690fb16SJohannes Berg case WLAN_EID_DS_PARAMS: 7509690fb16SJohannes Berg case WLAN_EID_CF_PARAMS: 7519690fb16SJohannes Berg case WLAN_EID_TIM: 7529690fb16SJohannes Berg case WLAN_EID_IBSS_PARAMS: 7539690fb16SJohannes Berg case WLAN_EID_CHALLENGE: 7549690fb16SJohannes Berg case WLAN_EID_RSN: 7559690fb16SJohannes Berg case WLAN_EID_ERP_INFO: 7569690fb16SJohannes Berg case WLAN_EID_EXT_SUPP_RATES: 7579690fb16SJohannes Berg case WLAN_EID_HT_CAPABILITY: 7589690fb16SJohannes Berg case WLAN_EID_HT_OPERATION: 7599690fb16SJohannes Berg case WLAN_EID_VHT_CAPABILITY: 7609690fb16SJohannes Berg case WLAN_EID_VHT_OPERATION: 7619690fb16SJohannes Berg case WLAN_EID_MESH_ID: 7629690fb16SJohannes Berg case WLAN_EID_MESH_CONFIG: 7639690fb16SJohannes Berg case WLAN_EID_PEER_MGMT: 7649690fb16SJohannes Berg case WLAN_EID_PREQ: 7659690fb16SJohannes Berg case WLAN_EID_PREP: 7669690fb16SJohannes Berg case WLAN_EID_PERR: 7679690fb16SJohannes Berg case WLAN_EID_RANN: 7689690fb16SJohannes Berg case WLAN_EID_CHANNEL_SWITCH: 7699690fb16SJohannes Berg case WLAN_EID_EXT_CHANSWITCH_ANN: 7709690fb16SJohannes Berg case WLAN_EID_COUNTRY: 7719690fb16SJohannes Berg case WLAN_EID_PWR_CONSTRAINT: 7729690fb16SJohannes Berg case WLAN_EID_TIMEOUT_INTERVAL: 77385220d71SJohannes Berg case WLAN_EID_SECONDARY_CHANNEL_OFFSET: 774b2e506bfSJohannes Berg case WLAN_EID_WIDE_BW_CHANNEL_SWITCH: 7758f2535b9SChun-Yeow Yeoh case WLAN_EID_CHAN_SWITCH_PARAM: 776b2e506bfSJohannes Berg /* 777b2e506bfSJohannes Berg * not listing WLAN_EID_CHANNEL_SWITCH_WRAPPER -- it seems possible 778b2e506bfSJohannes Berg * that if the content gets bigger it might be needed more than once 779b2e506bfSJohannes Berg */ 7809690fb16SJohannes Berg if (test_bit(id, seen_elems)) { 781fcff4f10SPaul Stewart elems->parse_error = true; 782fcff4f10SPaul Stewart left -= elen; 783fcff4f10SPaul Stewart pos += elen; 784fcff4f10SPaul Stewart continue; 785fcff4f10SPaul Stewart } 7869690fb16SJohannes Berg break; 7879690fb16SJohannes Berg } 788dd76986bSJohannes Berg 789dd76986bSJohannes Berg if (calc_crc && id < 64 && (filter & (1ULL << id))) 790dd76986bSJohannes Berg crc = crc32_be(crc, pos - 2, elen + 2); 791dd76986bSJohannes Berg 792fcff4f10SPaul Stewart elem_parse_failed = false; 793fcff4f10SPaul Stewart 794dd76986bSJohannes Berg switch (id) { 795dd76986bSJohannes Berg case WLAN_EID_SSID: 796dd76986bSJohannes Berg elems->ssid = pos; 797dd76986bSJohannes Berg elems->ssid_len = elen; 798dd76986bSJohannes Berg break; 799dd76986bSJohannes Berg case WLAN_EID_SUPP_RATES: 800dd76986bSJohannes Berg elems->supp_rates = pos; 801dd76986bSJohannes Berg elems->supp_rates_len = elen; 802dd76986bSJohannes Berg break; 803dd76986bSJohannes Berg case WLAN_EID_DS_PARAMS: 8041cd8e88eSJohannes Berg if (elen >= 1) 805dd76986bSJohannes Berg elems->ds_params = pos; 8061cd8e88eSJohannes Berg else 8071cd8e88eSJohannes Berg elem_parse_failed = true; 808dd76986bSJohannes Berg break; 809dd76986bSJohannes Berg case WLAN_EID_TIM: 810dd76986bSJohannes Berg if (elen >= sizeof(struct ieee80211_tim_ie)) { 811dd76986bSJohannes Berg elems->tim = (void *)pos; 812dd76986bSJohannes Berg elems->tim_len = elen; 813fcff4f10SPaul Stewart } else 814fcff4f10SPaul Stewart elem_parse_failed = true; 815dd76986bSJohannes Berg break; 816dd76986bSJohannes Berg case WLAN_EID_CHALLENGE: 817dd76986bSJohannes Berg elems->challenge = pos; 818dd76986bSJohannes Berg elems->challenge_len = elen; 819dd76986bSJohannes Berg break; 820dd76986bSJohannes Berg case WLAN_EID_VENDOR_SPECIFIC: 821dd76986bSJohannes Berg if (elen >= 4 && pos[0] == 0x00 && pos[1] == 0x50 && 822dd76986bSJohannes Berg pos[2] == 0xf2) { 823dd76986bSJohannes Berg /* Microsoft OUI (00:50:F2) */ 824dd76986bSJohannes Berg 825dd76986bSJohannes Berg if (calc_crc) 826dd76986bSJohannes Berg crc = crc32_be(crc, pos - 2, elen + 2); 827dd76986bSJohannes Berg 828441a33baSJohannes Berg if (elen >= 5 && pos[3] == 2) { 829dd76986bSJohannes Berg /* OUI Type 2 - WMM IE */ 830dd76986bSJohannes Berg if (pos[4] == 0) { 831dd76986bSJohannes Berg elems->wmm_info = pos; 832dd76986bSJohannes Berg elems->wmm_info_len = elen; 833dd76986bSJohannes Berg } else if (pos[4] == 1) { 834dd76986bSJohannes Berg elems->wmm_param = pos; 835dd76986bSJohannes Berg elems->wmm_param_len = elen; 836dd76986bSJohannes Berg } 837dd76986bSJohannes Berg } 838dd76986bSJohannes Berg } 839dd76986bSJohannes Berg break; 840dd76986bSJohannes Berg case WLAN_EID_RSN: 841dd76986bSJohannes Berg elems->rsn = pos; 842dd76986bSJohannes Berg elems->rsn_len = elen; 843dd76986bSJohannes Berg break; 844dd76986bSJohannes Berg case WLAN_EID_ERP_INFO: 8451946bed9SJohannes Berg if (elen >= 1) 846dd76986bSJohannes Berg elems->erp_info = pos; 8471946bed9SJohannes Berg else 8481946bed9SJohannes Berg elem_parse_failed = true; 849dd76986bSJohannes Berg break; 850dd76986bSJohannes Berg case WLAN_EID_EXT_SUPP_RATES: 851dd76986bSJohannes Berg elems->ext_supp_rates = pos; 852dd76986bSJohannes Berg elems->ext_supp_rates_len = elen; 853dd76986bSJohannes Berg break; 854dd76986bSJohannes Berg case WLAN_EID_HT_CAPABILITY: 855dd76986bSJohannes Berg if (elen >= sizeof(struct ieee80211_ht_cap)) 856dd76986bSJohannes Berg elems->ht_cap_elem = (void *)pos; 857fcff4f10SPaul Stewart else 858fcff4f10SPaul Stewart elem_parse_failed = true; 859dd76986bSJohannes Berg break; 860074d46d1SJohannes Berg case WLAN_EID_HT_OPERATION: 861074d46d1SJohannes Berg if (elen >= sizeof(struct ieee80211_ht_operation)) 862074d46d1SJohannes Berg elems->ht_operation = (void *)pos; 863fcff4f10SPaul Stewart else 864fcff4f10SPaul Stewart elem_parse_failed = true; 865dd76986bSJohannes Berg break; 866818255eaSMahesh Palivela case WLAN_EID_VHT_CAPABILITY: 867818255eaSMahesh Palivela if (elen >= sizeof(struct ieee80211_vht_cap)) 868818255eaSMahesh Palivela elems->vht_cap_elem = (void *)pos; 869818255eaSMahesh Palivela else 870818255eaSMahesh Palivela elem_parse_failed = true; 871818255eaSMahesh Palivela break; 872818255eaSMahesh Palivela case WLAN_EID_VHT_OPERATION: 873818255eaSMahesh Palivela if (elen >= sizeof(struct ieee80211_vht_operation)) 874818255eaSMahesh Palivela elems->vht_operation = (void *)pos; 875818255eaSMahesh Palivela else 876818255eaSMahesh Palivela elem_parse_failed = true; 877818255eaSMahesh Palivela break; 878bee7f586SJohannes Berg case WLAN_EID_OPMODE_NOTIF: 879bee7f586SJohannes Berg if (elen > 0) 880bee7f586SJohannes Berg elems->opmode_notif = pos; 881bee7f586SJohannes Berg else 882bee7f586SJohannes Berg elem_parse_failed = true; 883bee7f586SJohannes Berg break; 884dd76986bSJohannes Berg case WLAN_EID_MESH_ID: 885dd76986bSJohannes Berg elems->mesh_id = pos; 886dd76986bSJohannes Berg elems->mesh_id_len = elen; 887dd76986bSJohannes Berg break; 888dd76986bSJohannes Berg case WLAN_EID_MESH_CONFIG: 889dd76986bSJohannes Berg if (elen >= sizeof(struct ieee80211_meshconf_ie)) 890dd76986bSJohannes Berg elems->mesh_config = (void *)pos; 891fcff4f10SPaul Stewart else 892fcff4f10SPaul Stewart elem_parse_failed = true; 893dd76986bSJohannes Berg break; 894dd76986bSJohannes Berg case WLAN_EID_PEER_MGMT: 895dd76986bSJohannes Berg elems->peering = pos; 896dd76986bSJohannes Berg elems->peering_len = elen; 897dd76986bSJohannes Berg break; 8983f52b7e3SMarco Porsch case WLAN_EID_MESH_AWAKE_WINDOW: 8993f52b7e3SMarco Porsch if (elen >= 2) 9003f52b7e3SMarco Porsch elems->awake_window = (void *)pos; 9013f52b7e3SMarco Porsch break; 902dd76986bSJohannes Berg case WLAN_EID_PREQ: 903dd76986bSJohannes Berg elems->preq = pos; 904dd76986bSJohannes Berg elems->preq_len = elen; 905dd76986bSJohannes Berg break; 906dd76986bSJohannes Berg case WLAN_EID_PREP: 907dd76986bSJohannes Berg elems->prep = pos; 908dd76986bSJohannes Berg elems->prep_len = elen; 909dd76986bSJohannes Berg break; 910dd76986bSJohannes Berg case WLAN_EID_PERR: 911dd76986bSJohannes Berg elems->perr = pos; 912dd76986bSJohannes Berg elems->perr_len = elen; 913dd76986bSJohannes Berg break; 914dd76986bSJohannes Berg case WLAN_EID_RANN: 915dd76986bSJohannes Berg if (elen >= sizeof(struct ieee80211_rann_ie)) 916dd76986bSJohannes Berg elems->rann = (void *)pos; 917fcff4f10SPaul Stewart else 918fcff4f10SPaul Stewart elem_parse_failed = true; 919dd76986bSJohannes Berg break; 920dd76986bSJohannes Berg case WLAN_EID_CHANNEL_SWITCH: 9215bc1420bSJohannes Berg if (elen != sizeof(struct ieee80211_channel_sw_ie)) { 9225bc1420bSJohannes Berg elem_parse_failed = true; 9235bc1420bSJohannes Berg break; 9245bc1420bSJohannes Berg } 9255bc1420bSJohannes Berg elems->ch_switch_ie = (void *)pos; 926dd76986bSJohannes Berg break; 927b4f286a1SJohannes Berg case WLAN_EID_EXT_CHANSWITCH_ANN: 928b4f286a1SJohannes Berg if (elen != sizeof(struct ieee80211_ext_chansw_ie)) { 929b4f286a1SJohannes Berg elem_parse_failed = true; 930b4f286a1SJohannes Berg break; 931b4f286a1SJohannes Berg } 932b4f286a1SJohannes Berg elems->ext_chansw_ie = (void *)pos; 933b4f286a1SJohannes Berg break; 93485220d71SJohannes Berg case WLAN_EID_SECONDARY_CHANNEL_OFFSET: 93585220d71SJohannes Berg if (elen != sizeof(struct ieee80211_sec_chan_offs_ie)) { 93685220d71SJohannes Berg elem_parse_failed = true; 93785220d71SJohannes Berg break; 93885220d71SJohannes Berg } 93985220d71SJohannes Berg elems->sec_chan_offs = (void *)pos; 94085220d71SJohannes Berg break; 9418f2535b9SChun-Yeow Yeoh case WLAN_EID_CHAN_SWITCH_PARAM: 9428f2535b9SChun-Yeow Yeoh if (elen != 9438f2535b9SChun-Yeow Yeoh sizeof(*elems->mesh_chansw_params_ie)) { 9448f2535b9SChun-Yeow Yeoh elem_parse_failed = true; 9458f2535b9SChun-Yeow Yeoh break; 9468f2535b9SChun-Yeow Yeoh } 9478f2535b9SChun-Yeow Yeoh elems->mesh_chansw_params_ie = (void *)pos; 9488f2535b9SChun-Yeow Yeoh break; 949b2e506bfSJohannes Berg case WLAN_EID_WIDE_BW_CHANNEL_SWITCH: 950b2e506bfSJohannes Berg if (!action || 951b2e506bfSJohannes Berg elen != sizeof(*elems->wide_bw_chansw_ie)) { 952b2e506bfSJohannes Berg elem_parse_failed = true; 953b2e506bfSJohannes Berg break; 954b2e506bfSJohannes Berg } 955b2e506bfSJohannes Berg elems->wide_bw_chansw_ie = (void *)pos; 956b2e506bfSJohannes Berg break; 957b2e506bfSJohannes Berg case WLAN_EID_CHANNEL_SWITCH_WRAPPER: 958b2e506bfSJohannes Berg if (action) { 959b2e506bfSJohannes Berg elem_parse_failed = true; 960b2e506bfSJohannes Berg break; 961b2e506bfSJohannes Berg } 962b2e506bfSJohannes Berg /* 963b2e506bfSJohannes Berg * This is a bit tricky, but as we only care about 964b2e506bfSJohannes Berg * the wide bandwidth channel switch element, so 965b2e506bfSJohannes Berg * just parse it out manually. 966b2e506bfSJohannes Berg */ 967b2e506bfSJohannes Berg ie = cfg80211_find_ie(WLAN_EID_WIDE_BW_CHANNEL_SWITCH, 968b2e506bfSJohannes Berg pos, elen); 969b2e506bfSJohannes Berg if (ie) { 970b2e506bfSJohannes Berg if (ie[1] == sizeof(*elems->wide_bw_chansw_ie)) 971b2e506bfSJohannes Berg elems->wide_bw_chansw_ie = 972b2e506bfSJohannes Berg (void *)(ie + 2); 973b2e506bfSJohannes Berg else 974b2e506bfSJohannes Berg elem_parse_failed = true; 975b2e506bfSJohannes Berg } 976b2e506bfSJohannes Berg break; 977dd76986bSJohannes Berg case WLAN_EID_COUNTRY: 978dd76986bSJohannes Berg elems->country_elem = pos; 979dd76986bSJohannes Berg elems->country_elem_len = elen; 980dd76986bSJohannes Berg break; 981dd76986bSJohannes Berg case WLAN_EID_PWR_CONSTRAINT: 982761a48d2SJohannes Berg if (elen != 1) { 983761a48d2SJohannes Berg elem_parse_failed = true; 984761a48d2SJohannes Berg break; 985761a48d2SJohannes Berg } 986dd76986bSJohannes Berg elems->pwr_constr_elem = pos; 987dd76986bSJohannes Berg break; 988dd76986bSJohannes Berg case WLAN_EID_TIMEOUT_INTERVAL: 98979ba1d89SJohannes Berg if (elen >= sizeof(struct ieee80211_timeout_interval_ie)) 99079ba1d89SJohannes Berg elems->timeout_int = (void *)pos; 99179ba1d89SJohannes Berg else 99279ba1d89SJohannes Berg elem_parse_failed = true; 993dd76986bSJohannes Berg break; 994dd76986bSJohannes Berg default: 995dd76986bSJohannes Berg break; 996dd76986bSJohannes Berg } 997dd76986bSJohannes Berg 998fcff4f10SPaul Stewart if (elem_parse_failed) 999fcff4f10SPaul Stewart elems->parse_error = true; 1000fcff4f10SPaul Stewart else 10015df45690SJohannes Berg __set_bit(id, seen_elems); 1002fcff4f10SPaul Stewart 1003dd76986bSJohannes Berg left -= elen; 1004dd76986bSJohannes Berg pos += elen; 1005dd76986bSJohannes Berg } 1006dd76986bSJohannes Berg 1007fcff4f10SPaul Stewart if (left != 0) 1008fcff4f10SPaul Stewart elems->parse_error = true; 1009fcff4f10SPaul Stewart 1010dd76986bSJohannes Berg return crc; 1011dd76986bSJohannes Berg } 1012dd76986bSJohannes Berg 10133abead59SJohannes Berg void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata, 10143abead59SJohannes Berg bool bss_notify) 10155825fe10SJohannes Berg { 10165825fe10SJohannes Berg struct ieee80211_local *local = sdata->local; 10175825fe10SJohannes Berg struct ieee80211_tx_queue_params qparam; 101855de908aSJohannes Berg struct ieee80211_chanctx_conf *chanctx_conf; 101954bcbc69SJohannes Berg int ac; 1020a8ce8544SStanislaw Gruszka bool use_11b, enable_qos; 1021aa837e1dSJohannes Berg int aCWmin, aCWmax; 10225825fe10SJohannes Berg 10235825fe10SJohannes Berg if (!local->ops->conf_tx) 10245825fe10SJohannes Berg return; 10255825fe10SJohannes Berg 102654bcbc69SJohannes Berg if (local->hw.queues < IEEE80211_NUM_ACS) 102754bcbc69SJohannes Berg return; 102854bcbc69SJohannes Berg 10295825fe10SJohannes Berg memset(&qparam, 0, sizeof(qparam)); 10305825fe10SJohannes Berg 103155de908aSJohannes Berg rcu_read_lock(); 103255de908aSJohannes Berg chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 103355de908aSJohannes Berg use_11b = (chanctx_conf && 10344bf88530SJohannes Berg chanctx_conf->def.chan->band == IEEE80211_BAND_2GHZ) && 1035aa837e1dSJohannes Berg !(sdata->flags & IEEE80211_SDATA_OPERATING_GMODE); 103655de908aSJohannes Berg rcu_read_unlock(); 10375825fe10SJohannes Berg 1038a8ce8544SStanislaw Gruszka /* 1039a8ce8544SStanislaw Gruszka * By default disable QoS in STA mode for old access points, which do 1040a8ce8544SStanislaw Gruszka * not support 802.11e. New APs will provide proper queue parameters, 1041a8ce8544SStanislaw Gruszka * that we will configure later. 1042a8ce8544SStanislaw Gruszka */ 1043a8ce8544SStanislaw Gruszka enable_qos = (sdata->vif.type != NL80211_IFTYPE_STATION); 1044a8ce8544SStanislaw Gruszka 1045aa837e1dSJohannes Berg /* Set defaults according to 802.11-2007 Table 7-37 */ 1046aa837e1dSJohannes Berg aCWmax = 1023; 1047aa837e1dSJohannes Berg if (use_11b) 1048aa837e1dSJohannes Berg aCWmin = 31; 10495825fe10SJohannes Berg else 1050aa837e1dSJohannes Berg aCWmin = 15; 10515825fe10SJohannes Berg 10521f4ffde8SFred Zhou /* Confiure old 802.11b/g medium access rules. */ 10531f4ffde8SFred Zhou qparam.cw_max = aCWmax; 10541f4ffde8SFred Zhou qparam.cw_min = aCWmin; 10551f4ffde8SFred Zhou qparam.txop = 0; 10561f4ffde8SFred Zhou qparam.aifs = 2; 10571f4ffde8SFred Zhou 10581f4ffde8SFred Zhou for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 10591f4ffde8SFred Zhou /* Update if QoS is enabled. */ 1060a8ce8544SStanislaw Gruszka if (enable_qos) { 106154bcbc69SJohannes Berg switch (ac) { 10621d98fb12SJohannes Berg case IEEE80211_AC_BK: 10637ba10a8eSJohannes Berg qparam.cw_max = aCWmax; 10647ba10a8eSJohannes Berg qparam.cw_min = aCWmin; 10655825fe10SJohannes Berg qparam.txop = 0; 1066aa837e1dSJohannes Berg qparam.aifs = 7; 1067aa837e1dSJohannes Berg break; 1068a8ce8544SStanislaw Gruszka /* never happens but let's not leave undefined */ 1069a8ce8544SStanislaw Gruszka default: 10701d98fb12SJohannes Berg case IEEE80211_AC_BE: 10717ba10a8eSJohannes Berg qparam.cw_max = aCWmax; 10727ba10a8eSJohannes Berg qparam.cw_min = aCWmin; 1073aa837e1dSJohannes Berg qparam.txop = 0; 1074aa837e1dSJohannes Berg qparam.aifs = 3; 1075aa837e1dSJohannes Berg break; 10761d98fb12SJohannes Berg case IEEE80211_AC_VI: 1077aa837e1dSJohannes Berg qparam.cw_max = aCWmin; 1078aa837e1dSJohannes Berg qparam.cw_min = (aCWmin + 1) / 2 - 1; 1079aa837e1dSJohannes Berg if (use_11b) 1080aa837e1dSJohannes Berg qparam.txop = 6016/32; 1081aa837e1dSJohannes Berg else 1082aa837e1dSJohannes Berg qparam.txop = 3008/32; 1083aa837e1dSJohannes Berg qparam.aifs = 2; 1084aa837e1dSJohannes Berg break; 10851d98fb12SJohannes Berg case IEEE80211_AC_VO: 1086aa837e1dSJohannes Berg qparam.cw_max = (aCWmin + 1) / 2 - 1; 1087aa837e1dSJohannes Berg qparam.cw_min = (aCWmin + 1) / 4 - 1; 1088aa837e1dSJohannes Berg if (use_11b) 1089aa837e1dSJohannes Berg qparam.txop = 3264/32; 1090aa837e1dSJohannes Berg else 1091aa837e1dSJohannes Berg qparam.txop = 1504/32; 1092aa837e1dSJohannes Berg qparam.aifs = 2; 1093aa837e1dSJohannes Berg break; 1094aa837e1dSJohannes Berg } 1095a8ce8544SStanislaw Gruszka } 10965825fe10SJohannes Berg 1097ab13315aSKalle Valo qparam.uapsd = false; 1098ab13315aSKalle Valo 109954bcbc69SJohannes Berg sdata->tx_conf[ac] = qparam; 110054bcbc69SJohannes Berg drv_conf_tx(local, sdata, ac, &qparam); 1101aa837e1dSJohannes Berg } 1102e1b3ec1aSStanislaw Gruszka 1103f142c6b9SJohannes Berg if (sdata->vif.type != NL80211_IFTYPE_MONITOR && 1104f142c6b9SJohannes Berg sdata->vif.type != NL80211_IFTYPE_P2P_DEVICE) { 1105a8ce8544SStanislaw Gruszka sdata->vif.bss_conf.qos = enable_qos; 11063abead59SJohannes Berg if (bss_notify) 11073abead59SJohannes Berg ieee80211_bss_info_change_notify(sdata, 11083abead59SJohannes Berg BSS_CHANGED_QOS); 11095825fe10SJohannes Berg } 1110d9734979SSujith } 1111e50db65cSJohannes Berg 111246900298SJohannes Berg void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata, 1113700e8ea6SJouni Malinen u16 transaction, u16 auth_alg, u16 status, 11144a3cb702SJohannes Berg const u8 *extra, size_t extra_len, const u8 *da, 11151672c0e3SJohannes Berg const u8 *bssid, const u8 *key, u8 key_len, u8 key_idx, 11161672c0e3SJohannes Berg u32 tx_flags) 111746900298SJohannes Berg { 111846900298SJohannes Berg struct ieee80211_local *local = sdata->local; 111946900298SJohannes Berg struct sk_buff *skb; 112046900298SJohannes Berg struct ieee80211_mgmt *mgmt; 1121fffd0934SJohannes Berg int err; 112246900298SJohannes Berg 112315e230abSFred Zhou /* 24 + 6 = header + auth_algo + auth_transaction + status_code */ 112415e230abSFred Zhou skb = dev_alloc_skb(local->hw.extra_tx_headroom + 24 + 6 + extra_len); 1125d15b8459SJoe Perches if (!skb) 112646900298SJohannes Berg return; 1127d15b8459SJoe Perches 112846900298SJohannes Berg skb_reserve(skb, local->hw.extra_tx_headroom); 112946900298SJohannes Berg 113046900298SJohannes Berg mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24 + 6); 113146900298SJohannes Berg memset(mgmt, 0, 24 + 6); 113246900298SJohannes Berg mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | 113346900298SJohannes Berg IEEE80211_STYPE_AUTH); 1134efa6a09dSAntonio Quartulli memcpy(mgmt->da, da, ETH_ALEN); 113547846c9bSJohannes Berg memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN); 113646900298SJohannes Berg memcpy(mgmt->bssid, bssid, ETH_ALEN); 113746900298SJohannes Berg mgmt->u.auth.auth_alg = cpu_to_le16(auth_alg); 113846900298SJohannes Berg mgmt->u.auth.auth_transaction = cpu_to_le16(transaction); 1139700e8ea6SJouni Malinen mgmt->u.auth.status_code = cpu_to_le16(status); 114046900298SJohannes Berg if (extra) 114146900298SJohannes Berg memcpy(skb_put(skb, extra_len), extra, extra_len); 114246900298SJohannes Berg 1143fffd0934SJohannes Berg if (auth_alg == WLAN_AUTH_SHARED_KEY && transaction == 3) { 1144fffd0934SJohannes Berg mgmt->frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED); 1145fffd0934SJohannes Berg err = ieee80211_wep_encrypt(local, skb, key, key_len, key_idx); 1146fffd0934SJohannes Berg WARN_ON(err); 1147fffd0934SJohannes Berg } 1148fffd0934SJohannes Berg 11491672c0e3SJohannes Berg IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT | 11501672c0e3SJohannes Berg tx_flags; 115162ae67beSJohannes Berg ieee80211_tx_skb(sdata, skb); 115246900298SJohannes Berg } 115346900298SJohannes Berg 11546ae16775SAntonio Quartulli void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata, 11556ae16775SAntonio Quartulli const u8 *bssid, u16 stype, u16 reason, 11566ae16775SAntonio Quartulli bool send_frame, u8 *frame_buf) 11576ae16775SAntonio Quartulli { 11586ae16775SAntonio Quartulli struct ieee80211_local *local = sdata->local; 11596ae16775SAntonio Quartulli struct sk_buff *skb; 11606ae16775SAntonio Quartulli struct ieee80211_mgmt *mgmt = (void *)frame_buf; 11616ae16775SAntonio Quartulli 11626ae16775SAntonio Quartulli /* build frame */ 11636ae16775SAntonio Quartulli mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | stype); 11646ae16775SAntonio Quartulli mgmt->duration = 0; /* initialize only */ 11656ae16775SAntonio Quartulli mgmt->seq_ctrl = 0; /* initialize only */ 11666ae16775SAntonio Quartulli memcpy(mgmt->da, bssid, ETH_ALEN); 11676ae16775SAntonio Quartulli memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN); 11686ae16775SAntonio Quartulli memcpy(mgmt->bssid, bssid, ETH_ALEN); 11696ae16775SAntonio Quartulli /* u.deauth.reason_code == u.disassoc.reason_code */ 11706ae16775SAntonio Quartulli mgmt->u.deauth.reason_code = cpu_to_le16(reason); 11716ae16775SAntonio Quartulli 11726ae16775SAntonio Quartulli if (send_frame) { 11736ae16775SAntonio Quartulli skb = dev_alloc_skb(local->hw.extra_tx_headroom + 11746ae16775SAntonio Quartulli IEEE80211_DEAUTH_FRAME_LEN); 11756ae16775SAntonio Quartulli if (!skb) 11766ae16775SAntonio Quartulli return; 11776ae16775SAntonio Quartulli 11786ae16775SAntonio Quartulli skb_reserve(skb, local->hw.extra_tx_headroom); 11796ae16775SAntonio Quartulli 11806ae16775SAntonio Quartulli /* copy in frame */ 11816ae16775SAntonio Quartulli memcpy(skb_put(skb, IEEE80211_DEAUTH_FRAME_LEN), 11826ae16775SAntonio Quartulli mgmt, IEEE80211_DEAUTH_FRAME_LEN); 11836ae16775SAntonio Quartulli 11846ae16775SAntonio Quartulli if (sdata->vif.type != NL80211_IFTYPE_STATION || 11856ae16775SAntonio Quartulli !(sdata->u.mgd.flags & IEEE80211_STA_MFP_ENABLED)) 11866ae16775SAntonio Quartulli IEEE80211_SKB_CB(skb)->flags |= 11876ae16775SAntonio Quartulli IEEE80211_TX_INTFL_DONT_ENCRYPT; 11886ae16775SAntonio Quartulli 11896ae16775SAntonio Quartulli ieee80211_tx_skb(sdata, skb); 11906ae16775SAntonio Quartulli } 11916ae16775SAntonio Quartulli } 11926ae16775SAntonio Quartulli 1193de95a54bSJohannes Berg int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer, 1194c604b9f2SJohannes Berg size_t buffer_len, const u8 *ie, size_t ie_len, 1195651b5225SJouni Malinen enum ieee80211_band band, u32 rate_mask, 11962103dec1SSimon Wunderlich struct cfg80211_chan_def *chandef) 1197de95a54bSJohannes Berg { 1198de95a54bSJohannes Berg struct ieee80211_supported_band *sband; 1199c604b9f2SJohannes Berg u8 *pos = buffer, *end = buffer + buffer_len; 12008e664fb3SJohannes Berg size_t offset = 0, noffset; 12018e664fb3SJohannes Berg int supp_rates_len, i; 12028dcb2003SJouni Malinen u8 rates[32]; 12038dcb2003SJouni Malinen int num_rates; 12048dcb2003SJouni Malinen int ext_rates_len; 12052103dec1SSimon Wunderlich int shift; 12062103dec1SSimon Wunderlich u32 rate_flags; 1207de95a54bSJohannes Berg 12084d36ec58SJohannes Berg sband = local->hw.wiphy->bands[band]; 1209d811b3d5SArik Nemtsov if (WARN_ON_ONCE(!sband)) 1210d811b3d5SArik Nemtsov return 0; 1211de95a54bSJohannes Berg 12122103dec1SSimon Wunderlich rate_flags = ieee80211_chandef_rate_flags(chandef); 12132103dec1SSimon Wunderlich shift = ieee80211_chandef_get_shift(chandef); 12142103dec1SSimon Wunderlich 12158dcb2003SJouni Malinen num_rates = 0; 12168dcb2003SJouni Malinen for (i = 0; i < sband->n_bitrates; i++) { 12178dcb2003SJouni Malinen if ((BIT(i) & rate_mask) == 0) 12188dcb2003SJouni Malinen continue; /* skip rate */ 12192103dec1SSimon Wunderlich if ((rate_flags & sband->bitrates[i].flags) != rate_flags) 12202103dec1SSimon Wunderlich continue; 12212103dec1SSimon Wunderlich 12222103dec1SSimon Wunderlich rates[num_rates++] = 12232103dec1SSimon Wunderlich (u8) DIV_ROUND_UP(sband->bitrates[i].bitrate, 12242103dec1SSimon Wunderlich (1 << shift) * 5); 12258dcb2003SJouni Malinen } 12268dcb2003SJouni Malinen 12278dcb2003SJouni Malinen supp_rates_len = min_t(int, num_rates, 8); 12288e664fb3SJohannes Berg 1229c604b9f2SJohannes Berg if (end - pos < 2 + supp_rates_len) 1230c604b9f2SJohannes Berg goto out_err; 1231de95a54bSJohannes Berg *pos++ = WLAN_EID_SUPP_RATES; 12328e664fb3SJohannes Berg *pos++ = supp_rates_len; 12338dcb2003SJouni Malinen memcpy(pos, rates, supp_rates_len); 12348dcb2003SJouni Malinen pos += supp_rates_len; 1235de95a54bSJohannes Berg 12368e664fb3SJohannes Berg /* insert "request information" if in custom IEs */ 12378e664fb3SJohannes Berg if (ie && ie_len) { 12388e664fb3SJohannes Berg static const u8 before_extrates[] = { 12398e664fb3SJohannes Berg WLAN_EID_SSID, 12408e664fb3SJohannes Berg WLAN_EID_SUPP_RATES, 12418e664fb3SJohannes Berg WLAN_EID_REQUEST, 12428e664fb3SJohannes Berg }; 12438e664fb3SJohannes Berg noffset = ieee80211_ie_split(ie, ie_len, 12448e664fb3SJohannes Berg before_extrates, 12458e664fb3SJohannes Berg ARRAY_SIZE(before_extrates), 12468e664fb3SJohannes Berg offset); 1247c604b9f2SJohannes Berg if (end - pos < noffset - offset) 1248c604b9f2SJohannes Berg goto out_err; 12498e664fb3SJohannes Berg memcpy(pos, ie + offset, noffset - offset); 12508e664fb3SJohannes Berg pos += noffset - offset; 12518e664fb3SJohannes Berg offset = noffset; 12528e664fb3SJohannes Berg } 12538e664fb3SJohannes Berg 12548dcb2003SJouni Malinen ext_rates_len = num_rates - supp_rates_len; 12558dcb2003SJouni Malinen if (ext_rates_len > 0) { 1256c604b9f2SJohannes Berg if (end - pos < 2 + ext_rates_len) 1257c604b9f2SJohannes Berg goto out_err; 1258de95a54bSJohannes Berg *pos++ = WLAN_EID_EXT_SUPP_RATES; 12598dcb2003SJouni Malinen *pos++ = ext_rates_len; 12608dcb2003SJouni Malinen memcpy(pos, rates + supp_rates_len, ext_rates_len); 12618dcb2003SJouni Malinen pos += ext_rates_len; 12628e664fb3SJohannes Berg } 12638e664fb3SJohannes Berg 12642103dec1SSimon Wunderlich if (chandef->chan && sband->band == IEEE80211_BAND_2GHZ) { 1265c604b9f2SJohannes Berg if (end - pos < 3) 1266c604b9f2SJohannes Berg goto out_err; 1267651b5225SJouni Malinen *pos++ = WLAN_EID_DS_PARAMS; 1268651b5225SJouni Malinen *pos++ = 1; 12692103dec1SSimon Wunderlich *pos++ = ieee80211_frequency_to_channel( 12702103dec1SSimon Wunderlich chandef->chan->center_freq); 1271651b5225SJouni Malinen } 1272651b5225SJouni Malinen 12738e664fb3SJohannes Berg /* insert custom IEs that go before HT */ 12748e664fb3SJohannes Berg if (ie && ie_len) { 12758e664fb3SJohannes Berg static const u8 before_ht[] = { 12768e664fb3SJohannes Berg WLAN_EID_SSID, 12778e664fb3SJohannes Berg WLAN_EID_SUPP_RATES, 12788e664fb3SJohannes Berg WLAN_EID_REQUEST, 12798e664fb3SJohannes Berg WLAN_EID_EXT_SUPP_RATES, 12808e664fb3SJohannes Berg WLAN_EID_DS_PARAMS, 12818e664fb3SJohannes Berg WLAN_EID_SUPPORTED_REGULATORY_CLASSES, 12828e664fb3SJohannes Berg }; 12838e664fb3SJohannes Berg noffset = ieee80211_ie_split(ie, ie_len, 12848e664fb3SJohannes Berg before_ht, ARRAY_SIZE(before_ht), 12858e664fb3SJohannes Berg offset); 1286c604b9f2SJohannes Berg if (end - pos < noffset - offset) 1287c604b9f2SJohannes Berg goto out_err; 12888e664fb3SJohannes Berg memcpy(pos, ie + offset, noffset - offset); 12898e664fb3SJohannes Berg pos += noffset - offset; 12908e664fb3SJohannes Berg offset = noffset; 1291de95a54bSJohannes Berg } 1292de95a54bSJohannes Berg 1293c604b9f2SJohannes Berg if (sband->ht_cap.ht_supported) { 1294c604b9f2SJohannes Berg if (end - pos < 2 + sizeof(struct ieee80211_ht_cap)) 1295c604b9f2SJohannes Berg goto out_err; 1296ef96a842SBen Greear pos = ieee80211_ie_build_ht_cap(pos, &sband->ht_cap, 1297ef96a842SBen Greear sband->ht_cap.cap); 1298c604b9f2SJohannes Berg } 12995ef2d41aSJohannes Berg 1300de95a54bSJohannes Berg /* 1301de95a54bSJohannes Berg * If adding more here, adjust code in main.c 1302de95a54bSJohannes Berg * that calculates local->scan_ies_len. 1303de95a54bSJohannes Berg */ 1304de95a54bSJohannes Berg 13054d952300SJohannes Berg /* insert custom IEs that go before VHT */ 13068e664fb3SJohannes Berg if (ie && ie_len) { 13074d952300SJohannes Berg static const u8 before_vht[] = { 13084d952300SJohannes Berg WLAN_EID_SSID, 13094d952300SJohannes Berg WLAN_EID_SUPP_RATES, 13104d952300SJohannes Berg WLAN_EID_REQUEST, 13114d952300SJohannes Berg WLAN_EID_EXT_SUPP_RATES, 13124d952300SJohannes Berg WLAN_EID_DS_PARAMS, 13134d952300SJohannes Berg WLAN_EID_SUPPORTED_REGULATORY_CLASSES, 13144d952300SJohannes Berg WLAN_EID_HT_CAPABILITY, 13154d952300SJohannes Berg WLAN_EID_BSS_COEX_2040, 13164d952300SJohannes Berg WLAN_EID_EXT_CAPABILITY, 13174d952300SJohannes Berg WLAN_EID_SSID_LIST, 13184d952300SJohannes Berg WLAN_EID_CHANNEL_USAGE, 13194d952300SJohannes Berg WLAN_EID_INTERWORKING, 13204d952300SJohannes Berg /* mesh ID can't happen here */ 13214d952300SJohannes Berg /* 60 GHz can't happen here right now */ 13224d952300SJohannes Berg }; 13234d952300SJohannes Berg noffset = ieee80211_ie_split(ie, ie_len, 13244d952300SJohannes Berg before_vht, ARRAY_SIZE(before_vht), 13254d952300SJohannes Berg offset); 1326c604b9f2SJohannes Berg if (end - pos < noffset - offset) 1327c604b9f2SJohannes Berg goto out_err; 13288e664fb3SJohannes Berg memcpy(pos, ie + offset, noffset - offset); 13298e664fb3SJohannes Berg pos += noffset - offset; 13304d952300SJohannes Berg offset = noffset; 1331de95a54bSJohannes Berg } 1332de95a54bSJohannes Berg 1333c604b9f2SJohannes Berg if (sband->vht_cap.vht_supported) { 1334c604b9f2SJohannes Berg if (end - pos < 2 + sizeof(struct ieee80211_vht_cap)) 1335c604b9f2SJohannes Berg goto out_err; 1336ba0afa2fSMahesh Palivela pos = ieee80211_ie_build_vht_cap(pos, &sband->vht_cap, 1337ba0afa2fSMahesh Palivela sband->vht_cap.cap); 1338c604b9f2SJohannes Berg } 1339ba0afa2fSMahesh Palivela 13404d952300SJohannes Berg /* add any remaining custom IEs */ 13414d952300SJohannes Berg if (ie && ie_len) { 13424d952300SJohannes Berg noffset = ie_len; 13434d952300SJohannes Berg if (end - pos < noffset - offset) 13444d952300SJohannes Berg goto out_err; 13454d952300SJohannes Berg memcpy(pos, ie + offset, noffset - offset); 13464d952300SJohannes Berg pos += noffset - offset; 13474d952300SJohannes Berg } 13484d952300SJohannes Berg 1349de95a54bSJohannes Berg return pos - buffer; 1350c604b9f2SJohannes Berg out_err: 1351c604b9f2SJohannes Berg WARN_ONCE(1, "not enough space for preq IEs\n"); 1352c604b9f2SJohannes Berg return pos - buffer; 1353de95a54bSJohannes Berg } 1354de95a54bSJohannes Berg 1355a619a4c0SJuuso Oikarinen struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata, 135685a237feSJohannes Berg u8 *dst, u32 ratemask, 13576b77863bSJohannes Berg struct ieee80211_channel *chan, 1358de95a54bSJohannes Berg const u8 *ssid, size_t ssid_len, 1359a806c558SPaul Stewart const u8 *ie, size_t ie_len, 1360a806c558SPaul Stewart bool directed) 136146900298SJohannes Berg { 136246900298SJohannes Berg struct ieee80211_local *local = sdata->local; 13632103dec1SSimon Wunderlich struct cfg80211_chan_def chandef; 136446900298SJohannes Berg struct sk_buff *skb; 136546900298SJohannes Berg struct ieee80211_mgmt *mgmt; 1366b9a9ada1SJohannes Berg int ies_len; 136746900298SJohannes Berg 1368a806c558SPaul Stewart /* 1369a806c558SPaul Stewart * Do not send DS Channel parameter for directed probe requests 1370a806c558SPaul Stewart * in order to maximize the chance that we get a response. Some 1371a806c558SPaul Stewart * badly-behaved APs don't respond when this parameter is included. 1372a806c558SPaul Stewart */ 13732103dec1SSimon Wunderlich chandef.width = sdata->vif.bss_conf.chandef.width; 1374a806c558SPaul Stewart if (directed) 13752103dec1SSimon Wunderlich chandef.chan = NULL; 1376a806c558SPaul Stewart else 13772103dec1SSimon Wunderlich chandef.chan = chan; 1378651b5225SJouni Malinen 13797c12ce8bSKalle Valo skb = ieee80211_probereq_get(&local->hw, &sdata->vif, 1380b9a9ada1SJohannes Berg ssid, ssid_len, 100 + ie_len); 13815b2bbf75SJohannes Berg if (!skb) 1382b9a9ada1SJohannes Berg return NULL; 1383b9a9ada1SJohannes Berg 1384b9a9ada1SJohannes Berg ies_len = ieee80211_build_preq_ies(local, skb_tail_pointer(skb), 1385b9a9ada1SJohannes Berg skb_tailroom(skb), 1386c604b9f2SJohannes Berg ie, ie_len, chan->band, 13872103dec1SSimon Wunderlich ratemask, &chandef); 1388b9a9ada1SJohannes Berg skb_put(skb, ies_len); 13897c12ce8bSKalle Valo 139046900298SJohannes Berg if (dst) { 13917c12ce8bSKalle Valo mgmt = (struct ieee80211_mgmt *) skb->data; 139246900298SJohannes Berg memcpy(mgmt->da, dst, ETH_ALEN); 139346900298SJohannes Berg memcpy(mgmt->bssid, dst, ETH_ALEN); 139446900298SJohannes Berg } 139546900298SJohannes Berg 139662ae67beSJohannes Berg IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT; 13975b2bbf75SJohannes Berg 1398a619a4c0SJuuso Oikarinen return skb; 1399a619a4c0SJuuso Oikarinen } 1400a619a4c0SJuuso Oikarinen 1401a619a4c0SJuuso Oikarinen void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst, 1402a619a4c0SJuuso Oikarinen const u8 *ssid, size_t ssid_len, 1403a806c558SPaul Stewart const u8 *ie, size_t ie_len, 14041672c0e3SJohannes Berg u32 ratemask, bool directed, u32 tx_flags, 140555de908aSJohannes Berg struct ieee80211_channel *channel, bool scan) 1406a619a4c0SJuuso Oikarinen { 1407a619a4c0SJuuso Oikarinen struct sk_buff *skb; 1408a619a4c0SJuuso Oikarinen 1409fe94fe05SJohannes Berg skb = ieee80211_build_probe_req(sdata, dst, ratemask, channel, 14106b77863bSJohannes Berg ssid, ssid_len, 141185a237feSJohannes Berg ie, ie_len, directed); 1412aad14cebSRajkumar Manoharan if (skb) { 14131672c0e3SJohannes Berg IEEE80211_SKB_CB(skb)->flags |= tx_flags; 141455de908aSJohannes Berg if (scan) 141555de908aSJohannes Berg ieee80211_tx_skb_tid_band(sdata, skb, 7, channel->band); 141655de908aSJohannes Berg else 1417a619a4c0SJuuso Oikarinen ieee80211_tx_skb(sdata, skb); 141846900298SJohannes Berg } 1419aad14cebSRajkumar Manoharan } 142046900298SJohannes Berg 14212103dec1SSimon Wunderlich u32 ieee80211_sta_get_rates(struct ieee80211_sub_if_data *sdata, 142246900298SJohannes Berg struct ieee802_11_elems *elems, 14239ebb61a2SAshok Nagarajan enum ieee80211_band band, u32 *basic_rates) 142446900298SJohannes Berg { 142546900298SJohannes Berg struct ieee80211_supported_band *sband; 142646900298SJohannes Berg size_t num_rates; 14272103dec1SSimon Wunderlich u32 supp_rates, rate_flags; 14282103dec1SSimon Wunderlich int i, j, shift; 14292103dec1SSimon Wunderlich sband = sdata->local->hw.wiphy->bands[band]; 14302103dec1SSimon Wunderlich 14312103dec1SSimon Wunderlich rate_flags = ieee80211_chandef_rate_flags(&sdata->vif.bss_conf.chandef); 14322103dec1SSimon Wunderlich shift = ieee80211_vif_get_shift(&sdata->vif); 143346900298SJohannes Berg 14344ee73f33SMichal Kazior if (WARN_ON(!sband)) 14354ee73f33SMichal Kazior return 1; 143646900298SJohannes Berg 143746900298SJohannes Berg num_rates = sband->n_bitrates; 143846900298SJohannes Berg supp_rates = 0; 143946900298SJohannes Berg for (i = 0; i < elems->supp_rates_len + 144046900298SJohannes Berg elems->ext_supp_rates_len; i++) { 144146900298SJohannes Berg u8 rate = 0; 144246900298SJohannes Berg int own_rate; 14439ebb61a2SAshok Nagarajan bool is_basic; 144446900298SJohannes Berg if (i < elems->supp_rates_len) 144546900298SJohannes Berg rate = elems->supp_rates[i]; 144646900298SJohannes Berg else if (elems->ext_supp_rates) 144746900298SJohannes Berg rate = elems->ext_supp_rates 144846900298SJohannes Berg [i - elems->supp_rates_len]; 144946900298SJohannes Berg own_rate = 5 * (rate & 0x7f); 14509ebb61a2SAshok Nagarajan is_basic = !!(rate & 0x80); 14519ebb61a2SAshok Nagarajan 14529ebb61a2SAshok Nagarajan if (is_basic && (rate & 0x7f) == BSS_MEMBERSHIP_SELECTOR_HT_PHY) 14539ebb61a2SAshok Nagarajan continue; 14549ebb61a2SAshok Nagarajan 14559ebb61a2SAshok Nagarajan for (j = 0; j < num_rates; j++) { 14562103dec1SSimon Wunderlich int brate; 14572103dec1SSimon Wunderlich if ((rate_flags & sband->bitrates[j].flags) 14582103dec1SSimon Wunderlich != rate_flags) 14592103dec1SSimon Wunderlich continue; 14602103dec1SSimon Wunderlich 14612103dec1SSimon Wunderlich brate = DIV_ROUND_UP(sband->bitrates[j].bitrate, 14622103dec1SSimon Wunderlich 1 << shift); 14632103dec1SSimon Wunderlich 14642103dec1SSimon Wunderlich if (brate == own_rate) { 146546900298SJohannes Berg supp_rates |= BIT(j); 14669ebb61a2SAshok Nagarajan if (basic_rates && is_basic) 14679ebb61a2SAshok Nagarajan *basic_rates |= BIT(j); 14689ebb61a2SAshok Nagarajan } 14699ebb61a2SAshok Nagarajan } 147046900298SJohannes Berg } 147146900298SJohannes Berg return supp_rates; 147246900298SJohannes Berg } 1473f2753ddbSJohannes Berg 147484f6a01cSJohannes Berg void ieee80211_stop_device(struct ieee80211_local *local) 147584f6a01cSJohannes Berg { 147684f6a01cSJohannes Berg ieee80211_led_radio(local, false); 147767408c8cSJohannes Berg ieee80211_mod_tpt_led_trig(local, 0, IEEE80211_TPT_LEDTRIG_FL_RADIO); 147884f6a01cSJohannes Berg 147984f6a01cSJohannes Berg cancel_work_sync(&local->reconfig_filter); 148084f6a01cSJohannes Berg 148184f6a01cSJohannes Berg flush_workqueue(local->workqueue); 1482678f415fSLennert Buytenhek drv_stop(local); 148384f6a01cSJohannes Berg } 148484f6a01cSJohannes Berg 1485f6837ba8SJohannes Berg static void ieee80211_handle_reconfig_failure(struct ieee80211_local *local) 1486f6837ba8SJohannes Berg { 1487f6837ba8SJohannes Berg struct ieee80211_sub_if_data *sdata; 1488f6837ba8SJohannes Berg struct ieee80211_chanctx *ctx; 1489f6837ba8SJohannes Berg 1490f6837ba8SJohannes Berg /* 1491f6837ba8SJohannes Berg * We get here if during resume the device can't be restarted properly. 1492f6837ba8SJohannes Berg * We might also get here if this happens during HW reset, which is a 1493f6837ba8SJohannes Berg * slightly different situation and we need to drop all connections in 1494f6837ba8SJohannes Berg * the latter case. 1495f6837ba8SJohannes Berg * 1496f6837ba8SJohannes Berg * Ask cfg80211 to turn off all interfaces, this will result in more 1497f6837ba8SJohannes Berg * warnings but at least we'll then get into a clean stopped state. 1498f6837ba8SJohannes Berg */ 1499f6837ba8SJohannes Berg 1500f6837ba8SJohannes Berg local->resuming = false; 1501f6837ba8SJohannes Berg local->suspended = false; 1502f6837ba8SJohannes Berg local->started = false; 1503f6837ba8SJohannes Berg 1504f6837ba8SJohannes Berg /* scheduled scan clearly can't be running any more, but tell 1505f6837ba8SJohannes Berg * cfg80211 and clear local state 1506f6837ba8SJohannes Berg */ 1507f6837ba8SJohannes Berg ieee80211_sched_scan_end(local); 1508f6837ba8SJohannes Berg 1509f6837ba8SJohannes Berg list_for_each_entry(sdata, &local->interfaces, list) 1510f6837ba8SJohannes Berg sdata->flags &= ~IEEE80211_SDATA_IN_DRIVER; 1511f6837ba8SJohannes Berg 1512f6837ba8SJohannes Berg /* Mark channel contexts as not being in the driver any more to avoid 1513f6837ba8SJohannes Berg * removing them from the driver during the shutdown process... 1514f6837ba8SJohannes Berg */ 1515f6837ba8SJohannes Berg mutex_lock(&local->chanctx_mtx); 1516f6837ba8SJohannes Berg list_for_each_entry(ctx, &local->chanctx_list, list) 1517f6837ba8SJohannes Berg ctx->driver_present = false; 1518f6837ba8SJohannes Berg mutex_unlock(&local->chanctx_mtx); 1519f6837ba8SJohannes Berg 1520f6837ba8SJohannes Berg cfg80211_shutdown_all_interfaces(local->hw.wiphy); 1521f6837ba8SJohannes Berg } 1522f6837ba8SJohannes Berg 1523153a5fc4SStanislaw Gruszka static void ieee80211_assign_chanctx(struct ieee80211_local *local, 1524153a5fc4SStanislaw Gruszka struct ieee80211_sub_if_data *sdata) 1525153a5fc4SStanislaw Gruszka { 1526153a5fc4SStanislaw Gruszka struct ieee80211_chanctx_conf *conf; 1527153a5fc4SStanislaw Gruszka struct ieee80211_chanctx *ctx; 1528153a5fc4SStanislaw Gruszka 1529153a5fc4SStanislaw Gruszka if (!local->use_chanctx) 1530153a5fc4SStanislaw Gruszka return; 1531153a5fc4SStanislaw Gruszka 1532153a5fc4SStanislaw Gruszka mutex_lock(&local->chanctx_mtx); 1533153a5fc4SStanislaw Gruszka conf = rcu_dereference_protected(sdata->vif.chanctx_conf, 1534153a5fc4SStanislaw Gruszka lockdep_is_held(&local->chanctx_mtx)); 1535153a5fc4SStanislaw Gruszka if (conf) { 1536153a5fc4SStanislaw Gruszka ctx = container_of(conf, struct ieee80211_chanctx, conf); 1537153a5fc4SStanislaw Gruszka drv_assign_vif_chanctx(local, sdata, ctx); 1538153a5fc4SStanislaw Gruszka } 1539153a5fc4SStanislaw Gruszka mutex_unlock(&local->chanctx_mtx); 1540153a5fc4SStanislaw Gruszka } 1541153a5fc4SStanislaw Gruszka 1542f2753ddbSJohannes Berg int ieee80211_reconfig(struct ieee80211_local *local) 1543f2753ddbSJohannes Berg { 1544f2753ddbSJohannes Berg struct ieee80211_hw *hw = &local->hw; 1545f2753ddbSJohannes Berg struct ieee80211_sub_if_data *sdata; 154655de908aSJohannes Berg struct ieee80211_chanctx *ctx; 1547f2753ddbSJohannes Berg struct sta_info *sta; 15482683d65bSEliad Peller int res, i; 1549d888130aSJohannes Berg bool reconfig_due_to_wowlan = false; 1550d43c6b6eSDavid Spinadel struct ieee80211_sub_if_data *sched_scan_sdata; 1551d43c6b6eSDavid Spinadel bool sched_scan_stopped = false; 1552d888130aSJohannes Berg 15538f21b0adSJohannes Berg #ifdef CONFIG_PM 1554ceb99fe0SJohannes Berg if (local->suspended) 1555ceb99fe0SJohannes Berg local->resuming = true; 1556f2753ddbSJohannes Berg 1557eecc4800SJohannes Berg if (local->wowlan) { 1558eecc4800SJohannes Berg res = drv_resume(local); 155927b3eb9cSJohannes Berg local->wowlan = false; 1560eecc4800SJohannes Berg if (res < 0) { 1561eecc4800SJohannes Berg local->resuming = false; 1562eecc4800SJohannes Berg return res; 1563eecc4800SJohannes Berg } 1564eecc4800SJohannes Berg if (res == 0) 1565eecc4800SJohannes Berg goto wake_up; 1566eecc4800SJohannes Berg WARN_ON(res > 1); 1567eecc4800SJohannes Berg /* 1568eecc4800SJohannes Berg * res is 1, which means the driver requested 1569eecc4800SJohannes Berg * to go through a regular reset on wakeup. 1570eecc4800SJohannes Berg */ 1571d888130aSJohannes Berg reconfig_due_to_wowlan = true; 1572eecc4800SJohannes Berg } 1573eecc4800SJohannes Berg #endif 157494f9b97bSJohannes Berg /* everything else happens only if HW was up & running */ 157594f9b97bSJohannes Berg if (!local->open_count) 157694f9b97bSJohannes Berg goto wake_up; 157794f9b97bSJohannes Berg 157824feda00SLuis R. Rodriguez /* 157924feda00SLuis R. Rodriguez * Upon resume hardware can sometimes be goofy due to 158024feda00SLuis R. Rodriguez * various platform / driver / bus issues, so restarting 158124feda00SLuis R. Rodriguez * the device may at times not work immediately. Propagate 158224feda00SLuis R. Rodriguez * the error. 158324feda00SLuis R. Rodriguez */ 158424487981SJohannes Berg res = drv_start(local); 158524feda00SLuis R. Rodriguez if (res) { 1586f6837ba8SJohannes Berg if (local->suspended) 1587f6837ba8SJohannes Berg WARN(1, "Hardware became unavailable upon resume. This could be a software issue prior to suspend or a hardware issue.\n"); 1588f6837ba8SJohannes Berg else 1589f6837ba8SJohannes Berg WARN(1, "Hardware became unavailable during restart.\n"); 1590f6837ba8SJohannes Berg ieee80211_handle_reconfig_failure(local); 159124feda00SLuis R. Rodriguez return res; 159224feda00SLuis R. Rodriguez } 1593f2753ddbSJohannes Berg 15947f281975SYogesh Ashok Powar /* setup fragmentation threshold */ 15957f281975SYogesh Ashok Powar drv_set_frag_threshold(local, hw->wiphy->frag_threshold); 15967f281975SYogesh Ashok Powar 15977f281975SYogesh Ashok Powar /* setup RTS threshold */ 15987f281975SYogesh Ashok Powar drv_set_rts_threshold(local, hw->wiphy->rts_threshold); 15997f281975SYogesh Ashok Powar 16007f281975SYogesh Ashok Powar /* reset coverage class */ 16017f281975SYogesh Ashok Powar drv_set_coverage_class(local, hw->wiphy->coverage_class); 16027f281975SYogesh Ashok Powar 16031f87f7d3SJohannes Berg ieee80211_led_radio(local, true); 160467408c8cSJohannes Berg ieee80211_mod_tpt_led_trig(local, 160567408c8cSJohannes Berg IEEE80211_TPT_LEDTRIG_FL_RADIO, 0); 1606f2753ddbSJohannes Berg 1607f2753ddbSJohannes Berg /* add interfaces */ 16084b6f1dd6SJohannes Berg sdata = rtnl_dereference(local->monitor_sdata); 16094b6f1dd6SJohannes Berg if (sdata) { 16103c3e21e7SJohannes Berg /* in HW restart it exists already */ 16113c3e21e7SJohannes Berg WARN_ON(local->resuming); 16124b6f1dd6SJohannes Berg res = drv_add_interface(local, sdata); 16134b6f1dd6SJohannes Berg if (WARN_ON(res)) { 16140c2bef46SMonam Agarwal RCU_INIT_POINTER(local->monitor_sdata, NULL); 16154b6f1dd6SJohannes Berg synchronize_net(); 16164b6f1dd6SJohannes Berg kfree(sdata); 16174b6f1dd6SJohannes Berg } 16184b6f1dd6SJohannes Berg } 16194b6f1dd6SJohannes Berg 1620f2753ddbSJohannes Berg list_for_each_entry(sdata, &local->interfaces, list) { 1621f2753ddbSJohannes Berg if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 1622f2753ddbSJohannes Berg sdata->vif.type != NL80211_IFTYPE_MONITOR && 16231ed32e4fSJohannes Berg ieee80211_sdata_running(sdata)) 16247b7eab6fSJohannes Berg res = drv_add_interface(local, sdata); 1625f2753ddbSJohannes Berg } 1626f2753ddbSJohannes Berg 162755de908aSJohannes Berg /* add channel contexts */ 1628f0dea9c7SArend van Spriel if (local->use_chanctx) { 162955de908aSJohannes Berg mutex_lock(&local->chanctx_mtx); 163055de908aSJohannes Berg list_for_each_entry(ctx, &local->chanctx_list, list) 163155de908aSJohannes Berg WARN_ON(drv_add_chanctx(local, ctx)); 163255de908aSJohannes Berg mutex_unlock(&local->chanctx_mtx); 163355de908aSJohannes Berg 16346352c87fSJohannes Berg list_for_each_entry(sdata, &local->interfaces, list) { 16356352c87fSJohannes Berg if (!ieee80211_sdata_running(sdata)) 16366352c87fSJohannes Berg continue; 1637153a5fc4SStanislaw Gruszka ieee80211_assign_chanctx(local, sdata); 16386352c87fSJohannes Berg } 16396352c87fSJohannes Berg 1640fe5f2559SJohannes Berg sdata = rtnl_dereference(local->monitor_sdata); 1641153a5fc4SStanislaw Gruszka if (sdata && ieee80211_sdata_running(sdata)) 1642153a5fc4SStanislaw Gruszka ieee80211_assign_chanctx(local, sdata); 16437df180f7SZhao, Gang } 1644fe5f2559SJohannes Berg 1645f2753ddbSJohannes Berg /* add STAs back */ 164634e89507SJohannes Berg mutex_lock(&local->sta_mtx); 1647f2753ddbSJohannes Berg list_for_each_entry(sta, &local->sta_list, list) { 1648f09603a2SJohannes Berg enum ieee80211_sta_state state; 1649f09603a2SJohannes Berg 16502e8d397eSArik Nemtsov if (!sta->uploaded) 16512e8d397eSArik Nemtsov continue; 16522e8d397eSArik Nemtsov 16532e8d397eSArik Nemtsov /* AP-mode stations will be added later */ 16542e8d397eSArik Nemtsov if (sta->sdata->vif.type == NL80211_IFTYPE_AP) 16552e8d397eSArik Nemtsov continue; 16562e8d397eSArik Nemtsov 1657f09603a2SJohannes Berg for (state = IEEE80211_STA_NOTEXIST; 1658bd34ab62SMeenakshi Venkataraman state < sta->sta_state; state++) 16592e8d397eSArik Nemtsov WARN_ON(drv_sta_state(local, sta->sdata, sta, state, 16602e8d397eSArik Nemtsov state + 1)); 1661f2753ddbSJohannes Berg } 166234e89507SJohannes Berg mutex_unlock(&local->sta_mtx); 1663f2753ddbSJohannes Berg 16642683d65bSEliad Peller /* reconfigure tx conf */ 166554bcbc69SJohannes Berg if (hw->queues >= IEEE80211_NUM_ACS) { 1666f6f3def3SEliad Peller list_for_each_entry(sdata, &local->interfaces, list) { 1667f6f3def3SEliad Peller if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN || 1668f6f3def3SEliad Peller sdata->vif.type == NL80211_IFTYPE_MONITOR || 1669f6f3def3SEliad Peller !ieee80211_sdata_running(sdata)) 1670f6f3def3SEliad Peller continue; 1671f6f3def3SEliad Peller 167254bcbc69SJohannes Berg for (i = 0; i < IEEE80211_NUM_ACS; i++) 167354bcbc69SJohannes Berg drv_conf_tx(local, sdata, i, 167454bcbc69SJohannes Berg &sdata->tx_conf[i]); 167554bcbc69SJohannes Berg } 1676f6f3def3SEliad Peller } 16772683d65bSEliad Peller 1678f2753ddbSJohannes Berg /* reconfigure hardware */ 1679f2753ddbSJohannes Berg ieee80211_hw_config(local, ~0); 1680f2753ddbSJohannes Berg 1681f2753ddbSJohannes Berg ieee80211_configure_filter(local); 1682f2753ddbSJohannes Berg 1683f2753ddbSJohannes Berg /* Finally also reconfigure all the BSS information */ 1684f2753ddbSJohannes Berg list_for_each_entry(sdata, &local->interfaces, list) { 1685ac8dd506SJohannes Berg u32 changed; 1686ac8dd506SJohannes Berg 16879607e6b6SJohannes Berg if (!ieee80211_sdata_running(sdata)) 1688f2753ddbSJohannes Berg continue; 1689ac8dd506SJohannes Berg 1690ac8dd506SJohannes Berg /* common change flags for all interface types */ 1691ac8dd506SJohannes Berg changed = BSS_CHANGED_ERP_CTS_PROT | 1692ac8dd506SJohannes Berg BSS_CHANGED_ERP_PREAMBLE | 1693ac8dd506SJohannes Berg BSS_CHANGED_ERP_SLOT | 1694ac8dd506SJohannes Berg BSS_CHANGED_HT | 1695ac8dd506SJohannes Berg BSS_CHANGED_BASIC_RATES | 1696ac8dd506SJohannes Berg BSS_CHANGED_BEACON_INT | 1697ac8dd506SJohannes Berg BSS_CHANGED_BSSID | 16984ced3f74SJohannes Berg BSS_CHANGED_CQM | 169955de47f6SEliad Peller BSS_CHANGED_QOS | 17001ea6f9c0SJohannes Berg BSS_CHANGED_IDLE | 17011ea6f9c0SJohannes Berg BSS_CHANGED_TXPOWER; 1702ac8dd506SJohannes Berg 1703f2753ddbSJohannes Berg switch (sdata->vif.type) { 1704f2753ddbSJohannes Berg case NL80211_IFTYPE_STATION: 17050d392e93SEliad Peller changed |= BSS_CHANGED_ASSOC | 1706ab095877SEliad Peller BSS_CHANGED_ARP_FILTER | 1707ab095877SEliad Peller BSS_CHANGED_PS; 1708c65dd147SEmmanuel Grumbach 1709989c6505SAlexander Bondar /* Re-send beacon info report to the driver */ 1710989c6505SAlexander Bondar if (sdata->u.mgd.have_beacon) 1711989c6505SAlexander Bondar changed |= BSS_CHANGED_BEACON_INFO; 1712c65dd147SEmmanuel Grumbach 17138d61ffa5SJohannes Berg sdata_lock(sdata); 1714ac8dd506SJohannes Berg ieee80211_bss_info_change_notify(sdata, changed); 17158d61ffa5SJohannes Berg sdata_unlock(sdata); 1716ac8dd506SJohannes Berg break; 1717f2753ddbSJohannes Berg case NL80211_IFTYPE_ADHOC: 1718ac8dd506SJohannes Berg changed |= BSS_CHANGED_IBSS; 1719ac8dd506SJohannes Berg /* fall through */ 1720f2753ddbSJohannes Berg case NL80211_IFTYPE_AP: 1721339afbf4SJohannes Berg changed |= BSS_CHANGED_SSID | BSS_CHANGED_P2P_PS; 1722e7979ac7SArik Nemtsov 17231041638fSJohannes Berg if (sdata->vif.type == NL80211_IFTYPE_AP) { 1724e7979ac7SArik Nemtsov changed |= BSS_CHANGED_AP_PROBE_RESP; 1725e7979ac7SArik Nemtsov 17261041638fSJohannes Berg if (rcu_access_pointer(sdata->u.ap.beacon)) 17271041638fSJohannes Berg drv_start_ap(local, sdata); 17281041638fSJohannes Berg } 17291041638fSJohannes Berg 17307827493bSArik Nemtsov /* fall through */ 1731f2753ddbSJohannes Berg case NL80211_IFTYPE_MESH_POINT: 17328da34932SJohannes Berg if (sdata->vif.bss_conf.enable_beacon) { 1733ac8dd506SJohannes Berg changed |= BSS_CHANGED_BEACON | 1734ac8dd506SJohannes Berg BSS_CHANGED_BEACON_ENABLED; 17352d0ddec5SJohannes Berg ieee80211_bss_info_change_notify(sdata, changed); 17368da34932SJohannes Berg } 1737f2753ddbSJohannes Berg break; 1738f2753ddbSJohannes Berg case NL80211_IFTYPE_WDS: 1739f2753ddbSJohannes Berg case NL80211_IFTYPE_AP_VLAN: 1740f2753ddbSJohannes Berg case NL80211_IFTYPE_MONITOR: 174198104fdeSJohannes Berg case NL80211_IFTYPE_P2P_DEVICE: 1742b205786eSZhao, Gang /* nothing to do */ 1743f142c6b9SJohannes Berg break; 1744f2753ddbSJohannes Berg case NL80211_IFTYPE_UNSPECIFIED: 17452e161f78SJohannes Berg case NUM_NL80211_IFTYPES: 17462ca27bcfSJohannes Berg case NL80211_IFTYPE_P2P_CLIENT: 17472ca27bcfSJohannes Berg case NL80211_IFTYPE_P2P_GO: 1748f2753ddbSJohannes Berg WARN_ON(1); 1749f2753ddbSJohannes Berg break; 1750f2753ddbSJohannes Berg } 1751f2753ddbSJohannes Berg } 1752f2753ddbSJohannes Berg 17538e1b23b9SEyal Shapira ieee80211_recalc_ps(local, -1); 17548e1b23b9SEyal Shapira 17552a419056SJohannes Berg /* 17566e1b1b24SEliad Peller * The sta might be in psm against the ap (e.g. because 17576e1b1b24SEliad Peller * this was the state before a hw restart), so we 17586e1b1b24SEliad Peller * explicitly send a null packet in order to make sure 17596e1b1b24SEliad Peller * it'll sync against the ap (and get out of psm). 17606e1b1b24SEliad Peller */ 17616e1b1b24SEliad Peller if (!(local->hw.conf.flags & IEEE80211_CONF_PS)) { 17626e1b1b24SEliad Peller list_for_each_entry(sdata, &local->interfaces, list) { 17636e1b1b24SEliad Peller if (sdata->vif.type != NL80211_IFTYPE_STATION) 17646e1b1b24SEliad Peller continue; 176520f544eeSJohannes Berg if (!sdata->u.mgd.associated) 176620f544eeSJohannes Berg continue; 17676e1b1b24SEliad Peller 17686e1b1b24SEliad Peller ieee80211_send_nullfunc(local, sdata, 0); 17696e1b1b24SEliad Peller } 17706e1b1b24SEliad Peller } 17716e1b1b24SEliad Peller 17722e8d397eSArik Nemtsov /* APs are now beaconing, add back stations */ 17732e8d397eSArik Nemtsov mutex_lock(&local->sta_mtx); 17742e8d397eSArik Nemtsov list_for_each_entry(sta, &local->sta_list, list) { 17752e8d397eSArik Nemtsov enum ieee80211_sta_state state; 17762e8d397eSArik Nemtsov 17772e8d397eSArik Nemtsov if (!sta->uploaded) 17782e8d397eSArik Nemtsov continue; 17792e8d397eSArik Nemtsov 17802e8d397eSArik Nemtsov if (sta->sdata->vif.type != NL80211_IFTYPE_AP) 17812e8d397eSArik Nemtsov continue; 17822e8d397eSArik Nemtsov 17832e8d397eSArik Nemtsov for (state = IEEE80211_STA_NOTEXIST; 17842e8d397eSArik Nemtsov state < sta->sta_state; state++) 17852e8d397eSArik Nemtsov WARN_ON(drv_sta_state(local, sta->sdata, sta, state, 17862e8d397eSArik Nemtsov state + 1)); 17872e8d397eSArik Nemtsov } 17882e8d397eSArik Nemtsov mutex_unlock(&local->sta_mtx); 17892e8d397eSArik Nemtsov 17907b21aea0SEyal Shapira /* add back keys */ 17917b21aea0SEyal Shapira list_for_each_entry(sdata, &local->interfaces, list) 17927b21aea0SEyal Shapira if (ieee80211_sdata_running(sdata)) 17937b21aea0SEyal Shapira ieee80211_enable_keys(sdata); 17947b21aea0SEyal Shapira 1795c6209488SEliad Peller wake_up: 179604800adaSArik Nemtsov local->in_reconfig = false; 179704800adaSArik Nemtsov barrier(); 179804800adaSArik Nemtsov 17993c3e21e7SJohannes Berg if (local->monitors == local->open_count && local->monitors > 0) 18003c3e21e7SJohannes Berg ieee80211_add_virtual_monitor(local); 18013c3e21e7SJohannes Berg 18026e1b1b24SEliad Peller /* 18032a419056SJohannes Berg * Clear the WLAN_STA_BLOCK_BA flag so new aggregation 18042a419056SJohannes Berg * sessions can be established after a resume. 18052a419056SJohannes Berg * 18062a419056SJohannes Berg * Also tear down aggregation sessions since reconfiguring 18072a419056SJohannes Berg * them in a hardware restart scenario is not easily done 18082a419056SJohannes Berg * right now, and the hardware will have lost information 18092a419056SJohannes Berg * about the sessions, but we and the AP still think they 18102a419056SJohannes Berg * are active. This is really a workaround though. 18112a419056SJohannes Berg */ 181274e2bd1fSWey-Yi Guy if (hw->flags & IEEE80211_HW_AMPDU_AGGREGATION) { 18132a419056SJohannes Berg mutex_lock(&local->sta_mtx); 18142a419056SJohannes Berg 18152a419056SJohannes Berg list_for_each_entry(sta, &local->sta_list, list) { 1816c82c4a80SJohannes Berg ieee80211_sta_tear_down_BA_sessions( 1817c82c4a80SJohannes Berg sta, AGG_STOP_LOCAL_REQUEST); 1818c2c98fdeSJohannes Berg clear_sta_flag(sta, WLAN_STA_BLOCK_BA); 181974e2bd1fSWey-Yi Guy } 18202a419056SJohannes Berg 18212a419056SJohannes Berg mutex_unlock(&local->sta_mtx); 182274e2bd1fSWey-Yi Guy } 182374e2bd1fSWey-Yi Guy 1824445ea4e8SJohannes Berg ieee80211_wake_queues_by_reason(hw, IEEE80211_MAX_QUEUE_MAP, 1825cca07b00SLuciano Coelho IEEE80211_QUEUE_STOP_REASON_SUSPEND, 1826cca07b00SLuciano Coelho false); 1827f2753ddbSJohannes Berg 18285bb644a0SJohannes Berg /* 182932769814SArik Nemtsov * Reconfigure sched scan if it was interrupted by FW restart or 183032769814SArik Nemtsov * suspend. 183132769814SArik Nemtsov */ 183232769814SArik Nemtsov mutex_lock(&local->mtx); 183332769814SArik Nemtsov sched_scan_sdata = rcu_dereference_protected(local->sched_scan_sdata, 183432769814SArik Nemtsov lockdep_is_held(&local->mtx)); 183532769814SArik Nemtsov if (sched_scan_sdata && local->sched_scan_req) 183632769814SArik Nemtsov /* 183732769814SArik Nemtsov * Sched scan stopped, but we don't want to report it. Instead, 183832769814SArik Nemtsov * we're trying to reschedule. 183932769814SArik Nemtsov */ 184032769814SArik Nemtsov if (__ieee80211_request_sched_scan_start(sched_scan_sdata, 184132769814SArik Nemtsov local->sched_scan_req)) 184232769814SArik Nemtsov sched_scan_stopped = true; 184332769814SArik Nemtsov mutex_unlock(&local->mtx); 184432769814SArik Nemtsov 184532769814SArik Nemtsov if (sched_scan_stopped) 1846e669ba2dSEliad Peller cfg80211_sched_scan_stopped_rtnl(local->hw.wiphy); 184732769814SArik Nemtsov 184832769814SArik Nemtsov /* 18495bb644a0SJohannes Berg * If this is for hw restart things are still running. 18505bb644a0SJohannes Berg * We may want to change that later, however. 18515bb644a0SJohannes Berg */ 18528f21b0adSJohannes Berg if (!local->suspended || reconfig_due_to_wowlan) 18539214ad7fSJohannes Berg drv_restart_complete(local); 18548f21b0adSJohannes Berg 18558f21b0adSJohannes Berg if (!local->suspended) 18565bb644a0SJohannes Berg return 0; 18575bb644a0SJohannes Berg 18585bb644a0SJohannes Berg #ifdef CONFIG_PM 1859ceb99fe0SJohannes Berg /* first set suspended false, then resuming */ 18605bb644a0SJohannes Berg local->suspended = false; 1861ceb99fe0SJohannes Berg mb(); 1862ceb99fe0SJohannes Berg local->resuming = false; 18635bb644a0SJohannes Berg 1864b8360ab8SJohannes Berg list_for_each_entry(sdata, &local->interfaces, list) { 1865b8360ab8SJohannes Berg if (!ieee80211_sdata_running(sdata)) 1866b8360ab8SJohannes Berg continue; 1867b8360ab8SJohannes Berg if (sdata->vif.type == NL80211_IFTYPE_STATION) 1868b8360ab8SJohannes Berg ieee80211_sta_restart(sdata); 1869b8360ab8SJohannes Berg } 1870b8360ab8SJohannes Berg 187126d59535SJohannes Berg mod_timer(&local->sta_cleanup, jiffies + 1); 18725bb644a0SJohannes Berg #else 18735bb644a0SJohannes Berg WARN_ON(1); 18745bb644a0SJohannes Berg #endif 1875d43c6b6eSDavid Spinadel 1876f2753ddbSJohannes Berg return 0; 1877f2753ddbSJohannes Berg } 187842935ecaSLuis R. Rodriguez 187995acac61SJohannes Berg void ieee80211_resume_disconnect(struct ieee80211_vif *vif) 188095acac61SJohannes Berg { 188195acac61SJohannes Berg struct ieee80211_sub_if_data *sdata; 188295acac61SJohannes Berg struct ieee80211_local *local; 188395acac61SJohannes Berg struct ieee80211_key *key; 188495acac61SJohannes Berg 188595acac61SJohannes Berg if (WARN_ON(!vif)) 188695acac61SJohannes Berg return; 188795acac61SJohannes Berg 188895acac61SJohannes Berg sdata = vif_to_sdata(vif); 188995acac61SJohannes Berg local = sdata->local; 189095acac61SJohannes Berg 189195acac61SJohannes Berg if (WARN_ON(!local->resuming)) 189295acac61SJohannes Berg return; 189395acac61SJohannes Berg 189495acac61SJohannes Berg if (WARN_ON(vif->type != NL80211_IFTYPE_STATION)) 189595acac61SJohannes Berg return; 189695acac61SJohannes Berg 189795acac61SJohannes Berg sdata->flags |= IEEE80211_SDATA_DISCONNECT_RESUME; 189895acac61SJohannes Berg 189995acac61SJohannes Berg mutex_lock(&local->key_mtx); 190095acac61SJohannes Berg list_for_each_entry(key, &sdata->key_list, list) 190195acac61SJohannes Berg key->flags |= KEY_FLAG_TAINTED; 190295acac61SJohannes Berg mutex_unlock(&local->key_mtx); 190395acac61SJohannes Berg } 190495acac61SJohannes Berg EXPORT_SYMBOL_GPL(ieee80211_resume_disconnect); 190595acac61SJohannes Berg 190604ecd257SJohannes Berg void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata) 19070f78231bSJohannes Berg { 190804ecd257SJohannes Berg struct ieee80211_local *local = sdata->local; 190904ecd257SJohannes Berg struct ieee80211_chanctx_conf *chanctx_conf; 191004ecd257SJohannes Berg struct ieee80211_chanctx *chanctx; 19110f78231bSJohannes Berg 191204ecd257SJohannes Berg mutex_lock(&local->chanctx_mtx); 19130f78231bSJohannes Berg 191404ecd257SJohannes Berg chanctx_conf = rcu_dereference_protected(sdata->vif.chanctx_conf, 191504ecd257SJohannes Berg lockdep_is_held(&local->chanctx_mtx)); 19160f78231bSJohannes Berg 191704ecd257SJohannes Berg if (WARN_ON_ONCE(!chanctx_conf)) 19185d8e4237SJohannes Berg goto unlock; 19190f78231bSJohannes Berg 192004ecd257SJohannes Berg chanctx = container_of(chanctx_conf, struct ieee80211_chanctx, conf); 192104ecd257SJohannes Berg ieee80211_recalc_smps_chanctx(local, chanctx); 19225d8e4237SJohannes Berg unlock: 192304ecd257SJohannes Berg mutex_unlock(&local->chanctx_mtx); 19240f78231bSJohannes Berg } 19258e664fb3SJohannes Berg 192621f659bfSEliad Peller void ieee80211_recalc_min_chandef(struct ieee80211_sub_if_data *sdata) 192721f659bfSEliad Peller { 192821f659bfSEliad Peller struct ieee80211_local *local = sdata->local; 192921f659bfSEliad Peller struct ieee80211_chanctx_conf *chanctx_conf; 193021f659bfSEliad Peller struct ieee80211_chanctx *chanctx; 193121f659bfSEliad Peller 193221f659bfSEliad Peller mutex_lock(&local->chanctx_mtx); 193321f659bfSEliad Peller 193421f659bfSEliad Peller chanctx_conf = rcu_dereference_protected(sdata->vif.chanctx_conf, 193521f659bfSEliad Peller lockdep_is_held(&local->chanctx_mtx)); 193621f659bfSEliad Peller 193721f659bfSEliad Peller if (WARN_ON_ONCE(!chanctx_conf)) 193821f659bfSEliad Peller goto unlock; 193921f659bfSEliad Peller 194021f659bfSEliad Peller chanctx = container_of(chanctx_conf, struct ieee80211_chanctx, conf); 194121f659bfSEliad Peller ieee80211_recalc_chanctx_min_def(local, chanctx); 194221f659bfSEliad Peller unlock: 194321f659bfSEliad Peller mutex_unlock(&local->chanctx_mtx); 194421f659bfSEliad Peller } 194521f659bfSEliad Peller 19468e664fb3SJohannes Berg static bool ieee80211_id_in_list(const u8 *ids, int n_ids, u8 id) 19478e664fb3SJohannes Berg { 19488e664fb3SJohannes Berg int i; 19498e664fb3SJohannes Berg 19508e664fb3SJohannes Berg for (i = 0; i < n_ids; i++) 19518e664fb3SJohannes Berg if (ids[i] == id) 19528e664fb3SJohannes Berg return true; 19538e664fb3SJohannes Berg return false; 19548e664fb3SJohannes Berg } 19558e664fb3SJohannes Berg 19568e664fb3SJohannes Berg /** 19578e664fb3SJohannes Berg * ieee80211_ie_split - split an IE buffer according to ordering 19588e664fb3SJohannes Berg * 19598e664fb3SJohannes Berg * @ies: the IE buffer 19608e664fb3SJohannes Berg * @ielen: the length of the IE buffer 19618e664fb3SJohannes Berg * @ids: an array with element IDs that are allowed before 19628e664fb3SJohannes Berg * the split 19638e664fb3SJohannes Berg * @n_ids: the size of the element ID array 19648e664fb3SJohannes Berg * @offset: offset where to start splitting in the buffer 19658e664fb3SJohannes Berg * 19668e664fb3SJohannes Berg * This function splits an IE buffer by updating the @offset 19678e664fb3SJohannes Berg * variable to point to the location where the buffer should be 19688e664fb3SJohannes Berg * split. 19698e664fb3SJohannes Berg * 19708e664fb3SJohannes Berg * It assumes that the given IE buffer is well-formed, this 19718e664fb3SJohannes Berg * has to be guaranteed by the caller! 19728e664fb3SJohannes Berg * 19738e664fb3SJohannes Berg * It also assumes that the IEs in the buffer are ordered 19748e664fb3SJohannes Berg * correctly, if not the result of using this function will not 19758e664fb3SJohannes Berg * be ordered correctly either, i.e. it does no reordering. 19768e664fb3SJohannes Berg * 19778e664fb3SJohannes Berg * The function returns the offset where the next part of the 19788e664fb3SJohannes Berg * buffer starts, which may be @ielen if the entire (remainder) 19798e664fb3SJohannes Berg * of the buffer should be used. 19808e664fb3SJohannes Berg */ 19818e664fb3SJohannes Berg size_t ieee80211_ie_split(const u8 *ies, size_t ielen, 19828e664fb3SJohannes Berg const u8 *ids, int n_ids, size_t offset) 19838e664fb3SJohannes Berg { 19848e664fb3SJohannes Berg size_t pos = offset; 19858e664fb3SJohannes Berg 19868e664fb3SJohannes Berg while (pos < ielen && ieee80211_id_in_list(ids, n_ids, ies[pos])) 19878e664fb3SJohannes Berg pos += 2 + ies[pos + 1]; 19888e664fb3SJohannes Berg 19898e664fb3SJohannes Berg return pos; 19908e664fb3SJohannes Berg } 19918e664fb3SJohannes Berg 19928e664fb3SJohannes Berg size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset) 19938e664fb3SJohannes Berg { 19948e664fb3SJohannes Berg size_t pos = offset; 19958e664fb3SJohannes Berg 19968e664fb3SJohannes Berg while (pos < ielen && ies[pos] != WLAN_EID_VENDOR_SPECIFIC) 19978e664fb3SJohannes Berg pos += 2 + ies[pos + 1]; 19988e664fb3SJohannes Berg 19998e664fb3SJohannes Berg return pos; 20008e664fb3SJohannes Berg } 2001615f7b9bSMeenakshi Venkataraman 2002615f7b9bSMeenakshi Venkataraman static void _ieee80211_enable_rssi_reports(struct ieee80211_sub_if_data *sdata, 2003615f7b9bSMeenakshi Venkataraman int rssi_min_thold, 2004615f7b9bSMeenakshi Venkataraman int rssi_max_thold) 2005615f7b9bSMeenakshi Venkataraman { 2006615f7b9bSMeenakshi Venkataraman trace_api_enable_rssi_reports(sdata, rssi_min_thold, rssi_max_thold); 2007615f7b9bSMeenakshi Venkataraman 2008615f7b9bSMeenakshi Venkataraman if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION)) 2009615f7b9bSMeenakshi Venkataraman return; 2010615f7b9bSMeenakshi Venkataraman 2011615f7b9bSMeenakshi Venkataraman /* 2012615f7b9bSMeenakshi Venkataraman * Scale up threshold values before storing it, as the RSSI averaging 2013615f7b9bSMeenakshi Venkataraman * algorithm uses a scaled up value as well. Change this scaling 2014615f7b9bSMeenakshi Venkataraman * factor if the RSSI averaging algorithm changes. 2015615f7b9bSMeenakshi Venkataraman */ 2016615f7b9bSMeenakshi Venkataraman sdata->u.mgd.rssi_min_thold = rssi_min_thold*16; 2017615f7b9bSMeenakshi Venkataraman sdata->u.mgd.rssi_max_thold = rssi_max_thold*16; 2018615f7b9bSMeenakshi Venkataraman } 2019615f7b9bSMeenakshi Venkataraman 2020615f7b9bSMeenakshi Venkataraman void ieee80211_enable_rssi_reports(struct ieee80211_vif *vif, 2021615f7b9bSMeenakshi Venkataraman int rssi_min_thold, 2022615f7b9bSMeenakshi Venkataraman int rssi_max_thold) 2023615f7b9bSMeenakshi Venkataraman { 2024615f7b9bSMeenakshi Venkataraman struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 2025615f7b9bSMeenakshi Venkataraman 2026615f7b9bSMeenakshi Venkataraman WARN_ON(rssi_min_thold == rssi_max_thold || 2027615f7b9bSMeenakshi Venkataraman rssi_min_thold > rssi_max_thold); 2028615f7b9bSMeenakshi Venkataraman 2029615f7b9bSMeenakshi Venkataraman _ieee80211_enable_rssi_reports(sdata, rssi_min_thold, 2030615f7b9bSMeenakshi Venkataraman rssi_max_thold); 2031615f7b9bSMeenakshi Venkataraman } 2032615f7b9bSMeenakshi Venkataraman EXPORT_SYMBOL(ieee80211_enable_rssi_reports); 2033615f7b9bSMeenakshi Venkataraman 2034615f7b9bSMeenakshi Venkataraman void ieee80211_disable_rssi_reports(struct ieee80211_vif *vif) 2035615f7b9bSMeenakshi Venkataraman { 2036615f7b9bSMeenakshi Venkataraman struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 2037615f7b9bSMeenakshi Venkataraman 2038615f7b9bSMeenakshi Venkataraman _ieee80211_enable_rssi_reports(sdata, 0, 0); 2039615f7b9bSMeenakshi Venkataraman } 2040615f7b9bSMeenakshi Venkataraman EXPORT_SYMBOL(ieee80211_disable_rssi_reports); 2041768db343SArik Nemtsov 2042ef96a842SBen Greear u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap, 204342e7aa77SAlexander Simon u16 cap) 204442e7aa77SAlexander Simon { 204542e7aa77SAlexander Simon __le16 tmp; 204642e7aa77SAlexander Simon 204742e7aa77SAlexander Simon *pos++ = WLAN_EID_HT_CAPABILITY; 204842e7aa77SAlexander Simon *pos++ = sizeof(struct ieee80211_ht_cap); 204942e7aa77SAlexander Simon memset(pos, 0, sizeof(struct ieee80211_ht_cap)); 205042e7aa77SAlexander Simon 205142e7aa77SAlexander Simon /* capability flags */ 205242e7aa77SAlexander Simon tmp = cpu_to_le16(cap); 205342e7aa77SAlexander Simon memcpy(pos, &tmp, sizeof(u16)); 205442e7aa77SAlexander Simon pos += sizeof(u16); 205542e7aa77SAlexander Simon 205642e7aa77SAlexander Simon /* AMPDU parameters */ 2057ef96a842SBen Greear *pos++ = ht_cap->ampdu_factor | 2058ef96a842SBen Greear (ht_cap->ampdu_density << 205942e7aa77SAlexander Simon IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT); 206042e7aa77SAlexander Simon 206142e7aa77SAlexander Simon /* MCS set */ 2062ef96a842SBen Greear memcpy(pos, &ht_cap->mcs, sizeof(ht_cap->mcs)); 2063ef96a842SBen Greear pos += sizeof(ht_cap->mcs); 206442e7aa77SAlexander Simon 206542e7aa77SAlexander Simon /* extended capabilities */ 206642e7aa77SAlexander Simon pos += sizeof(__le16); 206742e7aa77SAlexander Simon 206842e7aa77SAlexander Simon /* BF capabilities */ 206942e7aa77SAlexander Simon pos += sizeof(__le32); 207042e7aa77SAlexander Simon 207142e7aa77SAlexander Simon /* antenna selection */ 207242e7aa77SAlexander Simon pos += sizeof(u8); 207342e7aa77SAlexander Simon 207442e7aa77SAlexander Simon return pos; 207542e7aa77SAlexander Simon } 207642e7aa77SAlexander Simon 2077ba0afa2fSMahesh Palivela u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap, 2078ba0afa2fSMahesh Palivela u32 cap) 2079ba0afa2fSMahesh Palivela { 2080ba0afa2fSMahesh Palivela __le32 tmp; 2081ba0afa2fSMahesh Palivela 2082ba0afa2fSMahesh Palivela *pos++ = WLAN_EID_VHT_CAPABILITY; 2083d4950281SMahesh Palivela *pos++ = sizeof(struct ieee80211_vht_cap); 2084d4950281SMahesh Palivela memset(pos, 0, sizeof(struct ieee80211_vht_cap)); 2085ba0afa2fSMahesh Palivela 2086ba0afa2fSMahesh Palivela /* capability flags */ 2087ba0afa2fSMahesh Palivela tmp = cpu_to_le32(cap); 2088ba0afa2fSMahesh Palivela memcpy(pos, &tmp, sizeof(u32)); 2089ba0afa2fSMahesh Palivela pos += sizeof(u32); 2090ba0afa2fSMahesh Palivela 2091ba0afa2fSMahesh Palivela /* VHT MCS set */ 2092ba0afa2fSMahesh Palivela memcpy(pos, &vht_cap->vht_mcs, sizeof(vht_cap->vht_mcs)); 2093ba0afa2fSMahesh Palivela pos += sizeof(vht_cap->vht_mcs); 2094ba0afa2fSMahesh Palivela 2095ba0afa2fSMahesh Palivela return pos; 2096ba0afa2fSMahesh Palivela } 2097ba0afa2fSMahesh Palivela 2098074d46d1SJohannes Berg u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap, 20994bf88530SJohannes Berg const struct cfg80211_chan_def *chandef, 2100431e3154SAshok Nagarajan u16 prot_mode) 210142e7aa77SAlexander Simon { 2102074d46d1SJohannes Berg struct ieee80211_ht_operation *ht_oper; 210342e7aa77SAlexander Simon /* Build HT Information */ 2104074d46d1SJohannes Berg *pos++ = WLAN_EID_HT_OPERATION; 2105074d46d1SJohannes Berg *pos++ = sizeof(struct ieee80211_ht_operation); 2106074d46d1SJohannes Berg ht_oper = (struct ieee80211_ht_operation *)pos; 21074bf88530SJohannes Berg ht_oper->primary_chan = ieee80211_frequency_to_channel( 21084bf88530SJohannes Berg chandef->chan->center_freq); 21094bf88530SJohannes Berg switch (chandef->width) { 21104bf88530SJohannes Berg case NL80211_CHAN_WIDTH_160: 21114bf88530SJohannes Berg case NL80211_CHAN_WIDTH_80P80: 21124bf88530SJohannes Berg case NL80211_CHAN_WIDTH_80: 21134bf88530SJohannes Berg case NL80211_CHAN_WIDTH_40: 21144bf88530SJohannes Berg if (chandef->center_freq1 > chandef->chan->center_freq) 21154bf88530SJohannes Berg ht_oper->ht_param = IEEE80211_HT_PARAM_CHA_SEC_ABOVE; 21164bf88530SJohannes Berg else 2117074d46d1SJohannes Berg ht_oper->ht_param = IEEE80211_HT_PARAM_CHA_SEC_BELOW; 211842e7aa77SAlexander Simon break; 211942e7aa77SAlexander Simon default: 2120074d46d1SJohannes Berg ht_oper->ht_param = IEEE80211_HT_PARAM_CHA_SEC_NONE; 212142e7aa77SAlexander Simon break; 212242e7aa77SAlexander Simon } 2123aee286c2SThomas Pedersen if (ht_cap->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40 && 21244bf88530SJohannes Berg chandef->width != NL80211_CHAN_WIDTH_20_NOHT && 21254bf88530SJohannes Berg chandef->width != NL80211_CHAN_WIDTH_20) 2126074d46d1SJohannes Berg ht_oper->ht_param |= IEEE80211_HT_PARAM_CHAN_WIDTH_ANY; 2127ff3cc5f4SSimon Wunderlich 2128431e3154SAshok Nagarajan ht_oper->operation_mode = cpu_to_le16(prot_mode); 2129074d46d1SJohannes Berg ht_oper->stbc_param = 0x0000; 213042e7aa77SAlexander Simon 213142e7aa77SAlexander Simon /* It seems that Basic MCS set and Supported MCS set 213242e7aa77SAlexander Simon are identical for the first 10 bytes */ 2133074d46d1SJohannes Berg memset(&ht_oper->basic_set, 0, 16); 2134074d46d1SJohannes Berg memcpy(&ht_oper->basic_set, &ht_cap->mcs, 10); 213542e7aa77SAlexander Simon 2136074d46d1SJohannes Berg return pos + sizeof(struct ieee80211_ht_operation); 213742e7aa77SAlexander Simon } 213842e7aa77SAlexander Simon 21394bf88530SJohannes Berg void ieee80211_ht_oper_to_chandef(struct ieee80211_channel *control_chan, 21404a3cb702SJohannes Berg const struct ieee80211_ht_operation *ht_oper, 21414bf88530SJohannes Berg struct cfg80211_chan_def *chandef) 214242e7aa77SAlexander Simon { 214342e7aa77SAlexander Simon enum nl80211_channel_type channel_type; 214442e7aa77SAlexander Simon 21454bf88530SJohannes Berg if (!ht_oper) { 21464bf88530SJohannes Berg cfg80211_chandef_create(chandef, control_chan, 21474bf88530SJohannes Berg NL80211_CHAN_NO_HT); 21484bf88530SJohannes Berg return; 21494bf88530SJohannes Berg } 215042e7aa77SAlexander Simon 2151074d46d1SJohannes Berg switch (ht_oper->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET) { 215242e7aa77SAlexander Simon case IEEE80211_HT_PARAM_CHA_SEC_NONE: 215342e7aa77SAlexander Simon channel_type = NL80211_CHAN_HT20; 215442e7aa77SAlexander Simon break; 215542e7aa77SAlexander Simon case IEEE80211_HT_PARAM_CHA_SEC_ABOVE: 215642e7aa77SAlexander Simon channel_type = NL80211_CHAN_HT40PLUS; 215742e7aa77SAlexander Simon break; 215842e7aa77SAlexander Simon case IEEE80211_HT_PARAM_CHA_SEC_BELOW: 215942e7aa77SAlexander Simon channel_type = NL80211_CHAN_HT40MINUS; 216042e7aa77SAlexander Simon break; 216142e7aa77SAlexander Simon default: 216242e7aa77SAlexander Simon channel_type = NL80211_CHAN_NO_HT; 216342e7aa77SAlexander Simon } 216442e7aa77SAlexander Simon 21654bf88530SJohannes Berg cfg80211_chandef_create(chandef, control_chan, channel_type); 216642e7aa77SAlexander Simon } 216742e7aa77SAlexander Simon 21682103dec1SSimon Wunderlich int ieee80211_parse_bitrates(struct cfg80211_chan_def *chandef, 21692103dec1SSimon Wunderlich const struct ieee80211_supported_band *sband, 21702103dec1SSimon Wunderlich const u8 *srates, int srates_len, u32 *rates) 21712103dec1SSimon Wunderlich { 21722103dec1SSimon Wunderlich u32 rate_flags = ieee80211_chandef_rate_flags(chandef); 21732103dec1SSimon Wunderlich int shift = ieee80211_chandef_get_shift(chandef); 21742103dec1SSimon Wunderlich struct ieee80211_rate *br; 21752103dec1SSimon Wunderlich int brate, rate, i, j, count = 0; 21762103dec1SSimon Wunderlich 21772103dec1SSimon Wunderlich *rates = 0; 21782103dec1SSimon Wunderlich 21792103dec1SSimon Wunderlich for (i = 0; i < srates_len; i++) { 21802103dec1SSimon Wunderlich rate = srates[i] & 0x7f; 21812103dec1SSimon Wunderlich 21822103dec1SSimon Wunderlich for (j = 0; j < sband->n_bitrates; j++) { 21832103dec1SSimon Wunderlich br = &sband->bitrates[j]; 21842103dec1SSimon Wunderlich if ((rate_flags & br->flags) != rate_flags) 21852103dec1SSimon Wunderlich continue; 21862103dec1SSimon Wunderlich 21872103dec1SSimon Wunderlich brate = DIV_ROUND_UP(br->bitrate, (1 << shift) * 5); 21882103dec1SSimon Wunderlich if (brate == rate) { 21892103dec1SSimon Wunderlich *rates |= BIT(j); 21902103dec1SSimon Wunderlich count++; 21912103dec1SSimon Wunderlich break; 21922103dec1SSimon Wunderlich } 21932103dec1SSimon Wunderlich } 21942103dec1SSimon Wunderlich } 21952103dec1SSimon Wunderlich return count; 21962103dec1SSimon Wunderlich } 21972103dec1SSimon Wunderlich 2198fc8a7321SJohannes Berg int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata, 21996b77863bSJohannes Berg struct sk_buff *skb, bool need_basic, 22006b77863bSJohannes Berg enum ieee80211_band band) 2201768db343SArik Nemtsov { 2202768db343SArik Nemtsov struct ieee80211_local *local = sdata->local; 2203768db343SArik Nemtsov struct ieee80211_supported_band *sband; 22042103dec1SSimon Wunderlich int rate, shift; 2205768db343SArik Nemtsov u8 i, rates, *pos; 2206fc8a7321SJohannes Berg u32 basic_rates = sdata->vif.bss_conf.basic_rates; 22072103dec1SSimon Wunderlich u32 rate_flags; 2208768db343SArik Nemtsov 22092103dec1SSimon Wunderlich shift = ieee80211_vif_get_shift(&sdata->vif); 22102103dec1SSimon Wunderlich rate_flags = ieee80211_chandef_rate_flags(&sdata->vif.bss_conf.chandef); 22116b77863bSJohannes Berg sband = local->hw.wiphy->bands[band]; 22122103dec1SSimon Wunderlich rates = 0; 22132103dec1SSimon Wunderlich for (i = 0; i < sband->n_bitrates; i++) { 22142103dec1SSimon Wunderlich if ((rate_flags & sband->bitrates[i].flags) != rate_flags) 22152103dec1SSimon Wunderlich continue; 22162103dec1SSimon Wunderlich rates++; 22172103dec1SSimon Wunderlich } 2218768db343SArik Nemtsov if (rates > 8) 2219768db343SArik Nemtsov rates = 8; 2220768db343SArik Nemtsov 2221768db343SArik Nemtsov if (skb_tailroom(skb) < rates + 2) 2222768db343SArik Nemtsov return -ENOMEM; 2223768db343SArik Nemtsov 2224768db343SArik Nemtsov pos = skb_put(skb, rates + 2); 2225768db343SArik Nemtsov *pos++ = WLAN_EID_SUPP_RATES; 2226768db343SArik Nemtsov *pos++ = rates; 2227768db343SArik Nemtsov for (i = 0; i < rates; i++) { 2228657c3e0cSAshok Nagarajan u8 basic = 0; 22292103dec1SSimon Wunderlich if ((rate_flags & sband->bitrates[i].flags) != rate_flags) 22302103dec1SSimon Wunderlich continue; 22312103dec1SSimon Wunderlich 2232657c3e0cSAshok Nagarajan if (need_basic && basic_rates & BIT(i)) 2233657c3e0cSAshok Nagarajan basic = 0x80; 2234768db343SArik Nemtsov rate = sband->bitrates[i].bitrate; 22352103dec1SSimon Wunderlich rate = DIV_ROUND_UP(sband->bitrates[i].bitrate, 22362103dec1SSimon Wunderlich 5 * (1 << shift)); 22372103dec1SSimon Wunderlich *pos++ = basic | (u8) rate; 2238768db343SArik Nemtsov } 2239768db343SArik Nemtsov 2240768db343SArik Nemtsov return 0; 2241768db343SArik Nemtsov } 2242768db343SArik Nemtsov 2243fc8a7321SJohannes Berg int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata, 22446b77863bSJohannes Berg struct sk_buff *skb, bool need_basic, 22456b77863bSJohannes Berg enum ieee80211_band band) 2246768db343SArik Nemtsov { 2247768db343SArik Nemtsov struct ieee80211_local *local = sdata->local; 2248768db343SArik Nemtsov struct ieee80211_supported_band *sband; 2249cc63ec76SChun-Yeow Yeoh int rate, shift; 2250768db343SArik Nemtsov u8 i, exrates, *pos; 2251fc8a7321SJohannes Berg u32 basic_rates = sdata->vif.bss_conf.basic_rates; 22522103dec1SSimon Wunderlich u32 rate_flags; 22532103dec1SSimon Wunderlich 22542103dec1SSimon Wunderlich rate_flags = ieee80211_chandef_rate_flags(&sdata->vif.bss_conf.chandef); 22552103dec1SSimon Wunderlich shift = ieee80211_vif_get_shift(&sdata->vif); 2256768db343SArik Nemtsov 22576b77863bSJohannes Berg sband = local->hw.wiphy->bands[band]; 22582103dec1SSimon Wunderlich exrates = 0; 22592103dec1SSimon Wunderlich for (i = 0; i < sband->n_bitrates; i++) { 22602103dec1SSimon Wunderlich if ((rate_flags & sband->bitrates[i].flags) != rate_flags) 22612103dec1SSimon Wunderlich continue; 22622103dec1SSimon Wunderlich exrates++; 22632103dec1SSimon Wunderlich } 22642103dec1SSimon Wunderlich 2265768db343SArik Nemtsov if (exrates > 8) 2266768db343SArik Nemtsov exrates -= 8; 2267768db343SArik Nemtsov else 2268768db343SArik Nemtsov exrates = 0; 2269768db343SArik Nemtsov 2270768db343SArik Nemtsov if (skb_tailroom(skb) < exrates + 2) 2271768db343SArik Nemtsov return -ENOMEM; 2272768db343SArik Nemtsov 2273768db343SArik Nemtsov if (exrates) { 2274768db343SArik Nemtsov pos = skb_put(skb, exrates + 2); 2275768db343SArik Nemtsov *pos++ = WLAN_EID_EXT_SUPP_RATES; 2276768db343SArik Nemtsov *pos++ = exrates; 2277768db343SArik Nemtsov for (i = 8; i < sband->n_bitrates; i++) { 2278657c3e0cSAshok Nagarajan u8 basic = 0; 22792103dec1SSimon Wunderlich if ((rate_flags & sband->bitrates[i].flags) 22802103dec1SSimon Wunderlich != rate_flags) 22812103dec1SSimon Wunderlich continue; 2282657c3e0cSAshok Nagarajan if (need_basic && basic_rates & BIT(i)) 2283657c3e0cSAshok Nagarajan basic = 0x80; 22842103dec1SSimon Wunderlich rate = DIV_ROUND_UP(sband->bitrates[i].bitrate, 22852103dec1SSimon Wunderlich 5 * (1 << shift)); 22862103dec1SSimon Wunderlich *pos++ = basic | (u8) rate; 2287768db343SArik Nemtsov } 2288768db343SArik Nemtsov } 2289768db343SArik Nemtsov return 0; 2290768db343SArik Nemtsov } 22911dae27f8SWey-Yi Guy 22921dae27f8SWey-Yi Guy int ieee80211_ave_rssi(struct ieee80211_vif *vif) 22931dae27f8SWey-Yi Guy { 22941dae27f8SWey-Yi Guy struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 22951dae27f8SWey-Yi Guy struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 22961dae27f8SWey-Yi Guy 2297be6bcabcSWey-Yi Guy if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) { 2298be6bcabcSWey-Yi Guy /* non-managed type inferfaces */ 2299be6bcabcSWey-Yi Guy return 0; 2300be6bcabcSWey-Yi Guy } 23013a7bba64SEmmanuel Grumbach return ifmgd->ave_beacon_signal / 16; 23021dae27f8SWey-Yi Guy } 23030d8a0a17SWey-Yi Guy EXPORT_SYMBOL_GPL(ieee80211_ave_rssi); 230404ecd257SJohannes Berg 230504ecd257SJohannes Berg u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs) 230604ecd257SJohannes Berg { 230704ecd257SJohannes Berg if (!mcs) 230804ecd257SJohannes Berg return 1; 230904ecd257SJohannes Berg 231004ecd257SJohannes Berg /* TODO: consider rx_highest */ 231104ecd257SJohannes Berg 231204ecd257SJohannes Berg if (mcs->rx_mask[3]) 231304ecd257SJohannes Berg return 4; 231404ecd257SJohannes Berg if (mcs->rx_mask[2]) 231504ecd257SJohannes Berg return 3; 231604ecd257SJohannes Berg if (mcs->rx_mask[1]) 231704ecd257SJohannes Berg return 2; 231804ecd257SJohannes Berg return 1; 231904ecd257SJohannes Berg } 2320f4bda337SThomas Pedersen 2321f4bda337SThomas Pedersen /** 2322f4bda337SThomas Pedersen * ieee80211_calculate_rx_timestamp - calculate timestamp in frame 2323f4bda337SThomas Pedersen * @local: mac80211 hw info struct 2324f4bda337SThomas Pedersen * @status: RX status 2325f4bda337SThomas Pedersen * @mpdu_len: total MPDU length (including FCS) 2326f4bda337SThomas Pedersen * @mpdu_offset: offset into MPDU to calculate timestamp at 2327f4bda337SThomas Pedersen * 2328f4bda337SThomas Pedersen * This function calculates the RX timestamp at the given MPDU offset, taking 2329f4bda337SThomas Pedersen * into account what the RX timestamp was. An offset of 0 will just normalize 2330f4bda337SThomas Pedersen * the timestamp to TSF at beginning of MPDU reception. 2331f4bda337SThomas Pedersen */ 2332f4bda337SThomas Pedersen u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local, 2333f4bda337SThomas Pedersen struct ieee80211_rx_status *status, 2334f4bda337SThomas Pedersen unsigned int mpdu_len, 2335f4bda337SThomas Pedersen unsigned int mpdu_offset) 2336f4bda337SThomas Pedersen { 2337f4bda337SThomas Pedersen u64 ts = status->mactime; 2338f4bda337SThomas Pedersen struct rate_info ri; 2339f4bda337SThomas Pedersen u16 rate; 2340f4bda337SThomas Pedersen 2341f4bda337SThomas Pedersen if (WARN_ON(!ieee80211_have_rx_timestamp(status))) 2342f4bda337SThomas Pedersen return 0; 2343f4bda337SThomas Pedersen 2344f4bda337SThomas Pedersen memset(&ri, 0, sizeof(ri)); 2345f4bda337SThomas Pedersen 2346f4bda337SThomas Pedersen /* Fill cfg80211 rate info */ 2347f4bda337SThomas Pedersen if (status->flag & RX_FLAG_HT) { 2348f4bda337SThomas Pedersen ri.mcs = status->rate_idx; 2349f4bda337SThomas Pedersen ri.flags |= RATE_INFO_FLAGS_MCS; 2350f4bda337SThomas Pedersen if (status->flag & RX_FLAG_40MHZ) 2351f4bda337SThomas Pedersen ri.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH; 2352f4bda337SThomas Pedersen if (status->flag & RX_FLAG_SHORT_GI) 2353f4bda337SThomas Pedersen ri.flags |= RATE_INFO_FLAGS_SHORT_GI; 23545614618eSJohannes Berg } else if (status->flag & RX_FLAG_VHT) { 23555614618eSJohannes Berg ri.flags |= RATE_INFO_FLAGS_VHT_MCS; 23565614618eSJohannes Berg ri.mcs = status->rate_idx; 23575614618eSJohannes Berg ri.nss = status->vht_nss; 23585614618eSJohannes Berg if (status->flag & RX_FLAG_40MHZ) 23595614618eSJohannes Berg ri.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH; 23601b8d242aSEmmanuel Grumbach if (status->vht_flag & RX_VHT_FLAG_80MHZ) 23615614618eSJohannes Berg ri.flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH; 23621b8d242aSEmmanuel Grumbach if (status->vht_flag & RX_VHT_FLAG_80P80MHZ) 23635614618eSJohannes Berg ri.flags |= RATE_INFO_FLAGS_80P80_MHZ_WIDTH; 23641b8d242aSEmmanuel Grumbach if (status->vht_flag & RX_VHT_FLAG_160MHZ) 23655614618eSJohannes Berg ri.flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH; 23665614618eSJohannes Berg if (status->flag & RX_FLAG_SHORT_GI) 23675614618eSJohannes Berg ri.flags |= RATE_INFO_FLAGS_SHORT_GI; 2368f4bda337SThomas Pedersen } else { 2369f4bda337SThomas Pedersen struct ieee80211_supported_band *sband; 23702103dec1SSimon Wunderlich int shift = 0; 23712103dec1SSimon Wunderlich int bitrate; 23722103dec1SSimon Wunderlich 23732103dec1SSimon Wunderlich if (status->flag & RX_FLAG_10MHZ) 23742103dec1SSimon Wunderlich shift = 1; 23752103dec1SSimon Wunderlich if (status->flag & RX_FLAG_5MHZ) 23762103dec1SSimon Wunderlich shift = 2; 2377f4bda337SThomas Pedersen 2378f4bda337SThomas Pedersen sband = local->hw.wiphy->bands[status->band]; 23792103dec1SSimon Wunderlich bitrate = sband->bitrates[status->rate_idx].bitrate; 23802103dec1SSimon Wunderlich ri.legacy = DIV_ROUND_UP(bitrate, (1 << shift)); 2381f4bda337SThomas Pedersen } 2382f4bda337SThomas Pedersen 2383f4bda337SThomas Pedersen rate = cfg80211_calculate_bitrate(&ri); 2384d86aa4f8SJohannes Berg if (WARN_ONCE(!rate, 2385d86aa4f8SJohannes Berg "Invalid bitrate: flags=0x%x, idx=%d, vht_nss=%d\n", 2386d86aa4f8SJohannes Berg status->flag, status->rate_idx, status->vht_nss)) 2387d86aa4f8SJohannes Berg return 0; 2388f4bda337SThomas Pedersen 2389f4bda337SThomas Pedersen /* rewind from end of MPDU */ 2390f4bda337SThomas Pedersen if (status->flag & RX_FLAG_MACTIME_END) 2391f4bda337SThomas Pedersen ts -= mpdu_len * 8 * 10 / rate; 2392f4bda337SThomas Pedersen 2393f4bda337SThomas Pedersen ts += mpdu_offset * 8 * 10 / rate; 2394f4bda337SThomas Pedersen 2395f4bda337SThomas Pedersen return ts; 2396f4bda337SThomas Pedersen } 2397164eb02dSSimon Wunderlich 2398164eb02dSSimon Wunderlich void ieee80211_dfs_cac_cancel(struct ieee80211_local *local) 2399164eb02dSSimon Wunderlich { 2400164eb02dSSimon Wunderlich struct ieee80211_sub_if_data *sdata; 2401d2859df5SJanusz Dziedzic struct cfg80211_chan_def chandef; 2402164eb02dSSimon Wunderlich 240334a3740dSJohannes Berg mutex_lock(&local->mtx); 2404164eb02dSSimon Wunderlich mutex_lock(&local->iflist_mtx); 2405164eb02dSSimon Wunderlich list_for_each_entry(sdata, &local->interfaces, list) { 240634a3740dSJohannes Berg /* it might be waiting for the local->mtx, but then 240734a3740dSJohannes Berg * by the time it gets it, sdata->wdev.cac_started 240834a3740dSJohannes Berg * will no longer be true 240934a3740dSJohannes Berg */ 241034a3740dSJohannes Berg cancel_delayed_work(&sdata->dfs_cac_timer_work); 2411164eb02dSSimon Wunderlich 2412164eb02dSSimon Wunderlich if (sdata->wdev.cac_started) { 2413d2859df5SJanusz Dziedzic chandef = sdata->vif.bss_conf.chandef; 2414164eb02dSSimon Wunderlich ieee80211_vif_release_channel(sdata); 2415164eb02dSSimon Wunderlich cfg80211_cac_event(sdata->dev, 2416d2859df5SJanusz Dziedzic &chandef, 2417164eb02dSSimon Wunderlich NL80211_RADAR_CAC_ABORTED, 2418164eb02dSSimon Wunderlich GFP_KERNEL); 2419164eb02dSSimon Wunderlich } 2420164eb02dSSimon Wunderlich } 2421164eb02dSSimon Wunderlich mutex_unlock(&local->iflist_mtx); 242234a3740dSJohannes Berg mutex_unlock(&local->mtx); 2423164eb02dSSimon Wunderlich } 2424164eb02dSSimon Wunderlich 2425164eb02dSSimon Wunderlich void ieee80211_dfs_radar_detected_work(struct work_struct *work) 2426164eb02dSSimon Wunderlich { 2427164eb02dSSimon Wunderlich struct ieee80211_local *local = 2428164eb02dSSimon Wunderlich container_of(work, struct ieee80211_local, radar_detected_work); 242984a3d1c9SJanusz Dziedzic struct cfg80211_chan_def chandef = local->hw.conf.chandef; 2430164eb02dSSimon Wunderlich 2431164eb02dSSimon Wunderlich ieee80211_dfs_cac_cancel(local); 2432164eb02dSSimon Wunderlich 2433164eb02dSSimon Wunderlich if (local->use_chanctx) 2434164eb02dSSimon Wunderlich /* currently not handled */ 2435164eb02dSSimon Wunderlich WARN_ON(1); 243684a3d1c9SJanusz Dziedzic else 2437164eb02dSSimon Wunderlich cfg80211_radar_event(local->hw.wiphy, &chandef, GFP_KERNEL); 2438164eb02dSSimon Wunderlich } 2439164eb02dSSimon Wunderlich 2440164eb02dSSimon Wunderlich void ieee80211_radar_detected(struct ieee80211_hw *hw) 2441164eb02dSSimon Wunderlich { 2442164eb02dSSimon Wunderlich struct ieee80211_local *local = hw_to_local(hw); 2443164eb02dSSimon Wunderlich 2444164eb02dSSimon Wunderlich trace_api_radar_detected(local); 2445164eb02dSSimon Wunderlich 2446164eb02dSSimon Wunderlich ieee80211_queue_work(hw, &local->radar_detected_work); 2447164eb02dSSimon Wunderlich } 2448164eb02dSSimon Wunderlich EXPORT_SYMBOL(ieee80211_radar_detected); 2449e6b7cde4SSimon Wunderlich 2450e6b7cde4SSimon Wunderlich u32 ieee80211_chandef_downgrade(struct cfg80211_chan_def *c) 2451e6b7cde4SSimon Wunderlich { 2452e6b7cde4SSimon Wunderlich u32 ret; 2453e6b7cde4SSimon Wunderlich int tmp; 2454e6b7cde4SSimon Wunderlich 2455e6b7cde4SSimon Wunderlich switch (c->width) { 2456e6b7cde4SSimon Wunderlich case NL80211_CHAN_WIDTH_20: 2457e6b7cde4SSimon Wunderlich c->width = NL80211_CHAN_WIDTH_20_NOHT; 2458e6b7cde4SSimon Wunderlich ret = IEEE80211_STA_DISABLE_HT | IEEE80211_STA_DISABLE_VHT; 2459e6b7cde4SSimon Wunderlich break; 2460e6b7cde4SSimon Wunderlich case NL80211_CHAN_WIDTH_40: 2461e6b7cde4SSimon Wunderlich c->width = NL80211_CHAN_WIDTH_20; 2462e6b7cde4SSimon Wunderlich c->center_freq1 = c->chan->center_freq; 2463e6b7cde4SSimon Wunderlich ret = IEEE80211_STA_DISABLE_40MHZ | 2464e6b7cde4SSimon Wunderlich IEEE80211_STA_DISABLE_VHT; 2465e6b7cde4SSimon Wunderlich break; 2466e6b7cde4SSimon Wunderlich case NL80211_CHAN_WIDTH_80: 2467e6b7cde4SSimon Wunderlich tmp = (30 + c->chan->center_freq - c->center_freq1)/20; 2468e6b7cde4SSimon Wunderlich /* n_P40 */ 2469e6b7cde4SSimon Wunderlich tmp /= 2; 2470e6b7cde4SSimon Wunderlich /* freq_P40 */ 2471e6b7cde4SSimon Wunderlich c->center_freq1 = c->center_freq1 - 20 + 40 * tmp; 2472e6b7cde4SSimon Wunderlich c->width = NL80211_CHAN_WIDTH_40; 2473e6b7cde4SSimon Wunderlich ret = IEEE80211_STA_DISABLE_VHT; 2474e6b7cde4SSimon Wunderlich break; 2475e6b7cde4SSimon Wunderlich case NL80211_CHAN_WIDTH_80P80: 2476e6b7cde4SSimon Wunderlich c->center_freq2 = 0; 2477e6b7cde4SSimon Wunderlich c->width = NL80211_CHAN_WIDTH_80; 2478e6b7cde4SSimon Wunderlich ret = IEEE80211_STA_DISABLE_80P80MHZ | 2479e6b7cde4SSimon Wunderlich IEEE80211_STA_DISABLE_160MHZ; 2480e6b7cde4SSimon Wunderlich break; 2481e6b7cde4SSimon Wunderlich case NL80211_CHAN_WIDTH_160: 2482e6b7cde4SSimon Wunderlich /* n_P20 */ 2483e6b7cde4SSimon Wunderlich tmp = (70 + c->chan->center_freq - c->center_freq1)/20; 2484e6b7cde4SSimon Wunderlich /* n_P80 */ 2485e6b7cde4SSimon Wunderlich tmp /= 4; 2486e6b7cde4SSimon Wunderlich c->center_freq1 = c->center_freq1 - 40 + 80 * tmp; 2487e6b7cde4SSimon Wunderlich c->width = NL80211_CHAN_WIDTH_80; 2488e6b7cde4SSimon Wunderlich ret = IEEE80211_STA_DISABLE_80P80MHZ | 2489e6b7cde4SSimon Wunderlich IEEE80211_STA_DISABLE_160MHZ; 2490e6b7cde4SSimon Wunderlich break; 2491e6b7cde4SSimon Wunderlich default: 2492e6b7cde4SSimon Wunderlich case NL80211_CHAN_WIDTH_20_NOHT: 2493e6b7cde4SSimon Wunderlich WARN_ON_ONCE(1); 2494e6b7cde4SSimon Wunderlich c->width = NL80211_CHAN_WIDTH_20_NOHT; 2495e6b7cde4SSimon Wunderlich ret = IEEE80211_STA_DISABLE_HT | IEEE80211_STA_DISABLE_VHT; 2496e6b7cde4SSimon Wunderlich break; 2497e6b7cde4SSimon Wunderlich case NL80211_CHAN_WIDTH_5: 2498e6b7cde4SSimon Wunderlich case NL80211_CHAN_WIDTH_10: 2499e6b7cde4SSimon Wunderlich WARN_ON_ONCE(1); 2500e6b7cde4SSimon Wunderlich /* keep c->width */ 2501e6b7cde4SSimon Wunderlich ret = IEEE80211_STA_DISABLE_HT | IEEE80211_STA_DISABLE_VHT; 2502e6b7cde4SSimon Wunderlich break; 2503e6b7cde4SSimon Wunderlich } 2504e6b7cde4SSimon Wunderlich 2505e6b7cde4SSimon Wunderlich WARN_ON_ONCE(!cfg80211_chandef_valid(c)); 2506e6b7cde4SSimon Wunderlich 2507e6b7cde4SSimon Wunderlich return ret; 2508e6b7cde4SSimon Wunderlich } 2509687da132SEmmanuel Grumbach 2510687da132SEmmanuel Grumbach /* 2511687da132SEmmanuel Grumbach * Returns true if smps_mode_new is strictly more restrictive than 2512687da132SEmmanuel Grumbach * smps_mode_old. 2513687da132SEmmanuel Grumbach */ 2514687da132SEmmanuel Grumbach bool ieee80211_smps_is_restrictive(enum ieee80211_smps_mode smps_mode_old, 2515687da132SEmmanuel Grumbach enum ieee80211_smps_mode smps_mode_new) 2516687da132SEmmanuel Grumbach { 2517687da132SEmmanuel Grumbach if (WARN_ON_ONCE(smps_mode_old == IEEE80211_SMPS_AUTOMATIC || 2518687da132SEmmanuel Grumbach smps_mode_new == IEEE80211_SMPS_AUTOMATIC)) 2519687da132SEmmanuel Grumbach return false; 2520687da132SEmmanuel Grumbach 2521687da132SEmmanuel Grumbach switch (smps_mode_old) { 2522687da132SEmmanuel Grumbach case IEEE80211_SMPS_STATIC: 2523687da132SEmmanuel Grumbach return false; 2524687da132SEmmanuel Grumbach case IEEE80211_SMPS_DYNAMIC: 2525687da132SEmmanuel Grumbach return smps_mode_new == IEEE80211_SMPS_STATIC; 2526687da132SEmmanuel Grumbach case IEEE80211_SMPS_OFF: 2527687da132SEmmanuel Grumbach return smps_mode_new != IEEE80211_SMPS_OFF; 2528687da132SEmmanuel Grumbach default: 2529687da132SEmmanuel Grumbach WARN_ON(1); 2530687da132SEmmanuel Grumbach } 2531687da132SEmmanuel Grumbach 2532687da132SEmmanuel Grumbach return false; 2533687da132SEmmanuel Grumbach } 2534c6da674aSChun-Yeow Yeoh 2535c6da674aSChun-Yeow Yeoh int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata, 2536c6da674aSChun-Yeow Yeoh struct cfg80211_csa_settings *csa_settings) 2537c6da674aSChun-Yeow Yeoh { 2538c6da674aSChun-Yeow Yeoh struct sk_buff *skb; 2539c6da674aSChun-Yeow Yeoh struct ieee80211_mgmt *mgmt; 2540c6da674aSChun-Yeow Yeoh struct ieee80211_local *local = sdata->local; 2541c6da674aSChun-Yeow Yeoh int freq; 2542c6da674aSChun-Yeow Yeoh int hdr_len = offsetof(struct ieee80211_mgmt, u.action.u.chan_switch) + 2543c6da674aSChun-Yeow Yeoh sizeof(mgmt->u.action.u.chan_switch); 2544c6da674aSChun-Yeow Yeoh u8 *pos; 2545c6da674aSChun-Yeow Yeoh 2546c6da674aSChun-Yeow Yeoh if (sdata->vif.type != NL80211_IFTYPE_ADHOC && 2547c6da674aSChun-Yeow Yeoh sdata->vif.type != NL80211_IFTYPE_MESH_POINT) 2548c6da674aSChun-Yeow Yeoh return -EOPNOTSUPP; 2549c6da674aSChun-Yeow Yeoh 2550c6da674aSChun-Yeow Yeoh skb = dev_alloc_skb(local->tx_headroom + hdr_len + 2551c6da674aSChun-Yeow Yeoh 5 + /* channel switch announcement element */ 2552c6da674aSChun-Yeow Yeoh 3 + /* secondary channel offset element */ 2553c6da674aSChun-Yeow Yeoh 8); /* mesh channel switch parameters element */ 2554c6da674aSChun-Yeow Yeoh if (!skb) 2555c6da674aSChun-Yeow Yeoh return -ENOMEM; 2556c6da674aSChun-Yeow Yeoh 2557c6da674aSChun-Yeow Yeoh skb_reserve(skb, local->tx_headroom); 2558c6da674aSChun-Yeow Yeoh mgmt = (struct ieee80211_mgmt *)skb_put(skb, hdr_len); 2559c6da674aSChun-Yeow Yeoh memset(mgmt, 0, hdr_len); 2560c6da674aSChun-Yeow Yeoh mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | 2561c6da674aSChun-Yeow Yeoh IEEE80211_STYPE_ACTION); 2562c6da674aSChun-Yeow Yeoh 2563c6da674aSChun-Yeow Yeoh eth_broadcast_addr(mgmt->da); 2564c6da674aSChun-Yeow Yeoh memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN); 2565c6da674aSChun-Yeow Yeoh if (ieee80211_vif_is_mesh(&sdata->vif)) { 2566c6da674aSChun-Yeow Yeoh memcpy(mgmt->bssid, sdata->vif.addr, ETH_ALEN); 2567c6da674aSChun-Yeow Yeoh } else { 2568c6da674aSChun-Yeow Yeoh struct ieee80211_if_ibss *ifibss = &sdata->u.ibss; 2569c6da674aSChun-Yeow Yeoh memcpy(mgmt->bssid, ifibss->bssid, ETH_ALEN); 2570c6da674aSChun-Yeow Yeoh } 2571c6da674aSChun-Yeow Yeoh mgmt->u.action.category = WLAN_CATEGORY_SPECTRUM_MGMT; 2572c6da674aSChun-Yeow Yeoh mgmt->u.action.u.chan_switch.action_code = WLAN_ACTION_SPCT_CHL_SWITCH; 2573c6da674aSChun-Yeow Yeoh pos = skb_put(skb, 5); 2574c6da674aSChun-Yeow Yeoh *pos++ = WLAN_EID_CHANNEL_SWITCH; /* EID */ 2575c6da674aSChun-Yeow Yeoh *pos++ = 3; /* IE length */ 2576c6da674aSChun-Yeow Yeoh *pos++ = csa_settings->block_tx ? 1 : 0; /* CSA mode */ 2577c6da674aSChun-Yeow Yeoh freq = csa_settings->chandef.chan->center_freq; 2578c6da674aSChun-Yeow Yeoh *pos++ = ieee80211_frequency_to_channel(freq); /* channel */ 2579c6da674aSChun-Yeow Yeoh *pos++ = csa_settings->count; /* count */ 2580c6da674aSChun-Yeow Yeoh 2581c6da674aSChun-Yeow Yeoh if (csa_settings->chandef.width == NL80211_CHAN_WIDTH_40) { 2582c6da674aSChun-Yeow Yeoh enum nl80211_channel_type ch_type; 2583c6da674aSChun-Yeow Yeoh 2584c6da674aSChun-Yeow Yeoh skb_put(skb, 3); 2585c6da674aSChun-Yeow Yeoh *pos++ = WLAN_EID_SECONDARY_CHANNEL_OFFSET; /* EID */ 2586c6da674aSChun-Yeow Yeoh *pos++ = 1; /* IE length */ 2587c6da674aSChun-Yeow Yeoh ch_type = cfg80211_get_chandef_type(&csa_settings->chandef); 2588c6da674aSChun-Yeow Yeoh if (ch_type == NL80211_CHAN_HT40PLUS) 2589c6da674aSChun-Yeow Yeoh *pos++ = IEEE80211_HT_PARAM_CHA_SEC_ABOVE; 2590c6da674aSChun-Yeow Yeoh else 2591c6da674aSChun-Yeow Yeoh *pos++ = IEEE80211_HT_PARAM_CHA_SEC_BELOW; 2592c6da674aSChun-Yeow Yeoh } 2593c6da674aSChun-Yeow Yeoh 2594c6da674aSChun-Yeow Yeoh if (ieee80211_vif_is_mesh(&sdata->vif)) { 2595c6da674aSChun-Yeow Yeoh struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 2596c6da674aSChun-Yeow Yeoh 2597c6da674aSChun-Yeow Yeoh skb_put(skb, 8); 2598c6da674aSChun-Yeow Yeoh *pos++ = WLAN_EID_CHAN_SWITCH_PARAM; /* EID */ 2599c6da674aSChun-Yeow Yeoh *pos++ = 6; /* IE length */ 2600c6da674aSChun-Yeow Yeoh *pos++ = sdata->u.mesh.mshcfg.dot11MeshTTL; /* Mesh TTL */ 2601c6da674aSChun-Yeow Yeoh *pos = 0x00; /* Mesh Flag: Tx Restrict, Initiator, Reason */ 2602c6da674aSChun-Yeow Yeoh *pos |= WLAN_EID_CHAN_SWITCH_PARAM_INITIATOR; 2603c6da674aSChun-Yeow Yeoh *pos++ |= csa_settings->block_tx ? 2604c6da674aSChun-Yeow Yeoh WLAN_EID_CHAN_SWITCH_PARAM_TX_RESTRICT : 0x00; 2605c6da674aSChun-Yeow Yeoh put_unaligned_le16(WLAN_REASON_MESH_CHAN, pos); /* Reason Cd */ 2606c6da674aSChun-Yeow Yeoh pos += 2; 2607ca91dc97SChun-Yeow Yeoh put_unaligned_le16(ifmsh->pre_value, pos);/* Precedence Value */ 2608c6da674aSChun-Yeow Yeoh pos += 2; 2609c6da674aSChun-Yeow Yeoh } 2610c6da674aSChun-Yeow Yeoh 2611c6da674aSChun-Yeow Yeoh ieee80211_tx_skb(sdata, skb); 2612c6da674aSChun-Yeow Yeoh return 0; 2613c6da674aSChun-Yeow Yeoh } 26142475b1ccSMax Stepanov 26152475b1ccSMax Stepanov bool ieee80211_cs_valid(const struct ieee80211_cipher_scheme *cs) 26162475b1ccSMax Stepanov { 26172475b1ccSMax Stepanov return !(cs == NULL || cs->cipher == 0 || 26182475b1ccSMax Stepanov cs->hdr_len < cs->pn_len + cs->pn_off || 26192475b1ccSMax Stepanov cs->hdr_len <= cs->key_idx_off || 26202475b1ccSMax Stepanov cs->key_idx_shift > 7 || 26212475b1ccSMax Stepanov cs->key_idx_mask == 0); 26222475b1ccSMax Stepanov } 26232475b1ccSMax Stepanov 26242475b1ccSMax Stepanov bool ieee80211_cs_list_valid(const struct ieee80211_cipher_scheme *cs, int n) 26252475b1ccSMax Stepanov { 26262475b1ccSMax Stepanov int i; 26272475b1ccSMax Stepanov 26282475b1ccSMax Stepanov /* Ensure we have enough iftype bitmap space for all iftype values */ 26292475b1ccSMax Stepanov WARN_ON((NUM_NL80211_IFTYPES / 8 + 1) > sizeof(cs[0].iftype)); 26302475b1ccSMax Stepanov 26312475b1ccSMax Stepanov for (i = 0; i < n; i++) 26322475b1ccSMax Stepanov if (!ieee80211_cs_valid(&cs[i])) 26332475b1ccSMax Stepanov return false; 26342475b1ccSMax Stepanov 26352475b1ccSMax Stepanov return true; 26362475b1ccSMax Stepanov } 26372475b1ccSMax Stepanov 26382475b1ccSMax Stepanov const struct ieee80211_cipher_scheme * 26392475b1ccSMax Stepanov ieee80211_cs_get(struct ieee80211_local *local, u32 cipher, 26402475b1ccSMax Stepanov enum nl80211_iftype iftype) 26412475b1ccSMax Stepanov { 26422475b1ccSMax Stepanov const struct ieee80211_cipher_scheme *l = local->hw.cipher_schemes; 26432475b1ccSMax Stepanov int n = local->hw.n_cipher_schemes; 26442475b1ccSMax Stepanov int i; 26452475b1ccSMax Stepanov const struct ieee80211_cipher_scheme *cs = NULL; 26462475b1ccSMax Stepanov 26472475b1ccSMax Stepanov for (i = 0; i < n; i++) { 26482475b1ccSMax Stepanov if (l[i].cipher == cipher) { 26492475b1ccSMax Stepanov cs = &l[i]; 26502475b1ccSMax Stepanov break; 26512475b1ccSMax Stepanov } 26522475b1ccSMax Stepanov } 26532475b1ccSMax Stepanov 26542475b1ccSMax Stepanov if (!cs || !(cs->iftype & BIT(iftype))) 26552475b1ccSMax Stepanov return NULL; 26562475b1ccSMax Stepanov 26572475b1ccSMax Stepanov return cs; 26582475b1ccSMax Stepanov } 26592475b1ccSMax Stepanov 26602475b1ccSMax Stepanov int ieee80211_cs_headroom(struct ieee80211_local *local, 26612475b1ccSMax Stepanov struct cfg80211_crypto_settings *crypto, 26622475b1ccSMax Stepanov enum nl80211_iftype iftype) 26632475b1ccSMax Stepanov { 26642475b1ccSMax Stepanov const struct ieee80211_cipher_scheme *cs; 26652475b1ccSMax Stepanov int headroom = IEEE80211_ENCRYPT_HEADROOM; 26662475b1ccSMax Stepanov int i; 26672475b1ccSMax Stepanov 26682475b1ccSMax Stepanov for (i = 0; i < crypto->n_ciphers_pairwise; i++) { 26692475b1ccSMax Stepanov cs = ieee80211_cs_get(local, crypto->ciphers_pairwise[i], 26702475b1ccSMax Stepanov iftype); 26712475b1ccSMax Stepanov 26722475b1ccSMax Stepanov if (cs && headroom < cs->hdr_len) 26732475b1ccSMax Stepanov headroom = cs->hdr_len; 26742475b1ccSMax Stepanov } 26752475b1ccSMax Stepanov 26762475b1ccSMax Stepanov cs = ieee80211_cs_get(local, crypto->cipher_group, iftype); 26772475b1ccSMax Stepanov if (cs && headroom < cs->hdr_len) 26782475b1ccSMax Stepanov headroom = cs->hdr_len; 26792475b1ccSMax Stepanov 26802475b1ccSMax Stepanov return headroom; 26812475b1ccSMax Stepanov } 2682a7022e65SFelix Fietkau 2683a7022e65SFelix Fietkau static bool 2684a7022e65SFelix Fietkau ieee80211_extend_noa_desc(struct ieee80211_noa_data *data, u32 tsf, int i) 2685a7022e65SFelix Fietkau { 2686a7022e65SFelix Fietkau s32 end = data->desc[i].start + data->desc[i].duration - (tsf + 1); 2687a7022e65SFelix Fietkau int skip; 2688a7022e65SFelix Fietkau 2689a7022e65SFelix Fietkau if (end > 0) 2690a7022e65SFelix Fietkau return false; 2691a7022e65SFelix Fietkau 2692a7022e65SFelix Fietkau /* End time is in the past, check for repetitions */ 2693a7022e65SFelix Fietkau skip = DIV_ROUND_UP(-end, data->desc[i].interval); 2694a7022e65SFelix Fietkau if (data->count[i] < 255) { 2695a7022e65SFelix Fietkau if (data->count[i] <= skip) { 2696a7022e65SFelix Fietkau data->count[i] = 0; 2697a7022e65SFelix Fietkau return false; 2698a7022e65SFelix Fietkau } 2699a7022e65SFelix Fietkau 2700a7022e65SFelix Fietkau data->count[i] -= skip; 2701a7022e65SFelix Fietkau } 2702a7022e65SFelix Fietkau 2703a7022e65SFelix Fietkau data->desc[i].start += skip * data->desc[i].interval; 2704a7022e65SFelix Fietkau 2705a7022e65SFelix Fietkau return true; 2706a7022e65SFelix Fietkau } 2707a7022e65SFelix Fietkau 2708a7022e65SFelix Fietkau static bool 2709a7022e65SFelix Fietkau ieee80211_extend_absent_time(struct ieee80211_noa_data *data, u32 tsf, 2710a7022e65SFelix Fietkau s32 *offset) 2711a7022e65SFelix Fietkau { 2712a7022e65SFelix Fietkau bool ret = false; 2713a7022e65SFelix Fietkau int i; 2714a7022e65SFelix Fietkau 2715a7022e65SFelix Fietkau for (i = 0; i < IEEE80211_P2P_NOA_DESC_MAX; i++) { 2716a7022e65SFelix Fietkau s32 cur; 2717a7022e65SFelix Fietkau 2718a7022e65SFelix Fietkau if (!data->count[i]) 2719a7022e65SFelix Fietkau continue; 2720a7022e65SFelix Fietkau 2721a7022e65SFelix Fietkau if (ieee80211_extend_noa_desc(data, tsf + *offset, i)) 2722a7022e65SFelix Fietkau ret = true; 2723a7022e65SFelix Fietkau 2724a7022e65SFelix Fietkau cur = data->desc[i].start - tsf; 2725a7022e65SFelix Fietkau if (cur > *offset) 2726a7022e65SFelix Fietkau continue; 2727a7022e65SFelix Fietkau 2728a7022e65SFelix Fietkau cur = data->desc[i].start + data->desc[i].duration - tsf; 2729a7022e65SFelix Fietkau if (cur > *offset) 2730a7022e65SFelix Fietkau *offset = cur; 2731a7022e65SFelix Fietkau } 2732a7022e65SFelix Fietkau 2733a7022e65SFelix Fietkau return ret; 2734a7022e65SFelix Fietkau } 2735a7022e65SFelix Fietkau 2736a7022e65SFelix Fietkau static u32 2737a7022e65SFelix Fietkau ieee80211_get_noa_absent_time(struct ieee80211_noa_data *data, u32 tsf) 2738a7022e65SFelix Fietkau { 2739a7022e65SFelix Fietkau s32 offset = 0; 2740a7022e65SFelix Fietkau int tries = 0; 2741a7022e65SFelix Fietkau /* 2742a7022e65SFelix Fietkau * arbitrary limit, used to avoid infinite loops when combined NoA 2743a7022e65SFelix Fietkau * descriptors cover the full time period. 2744a7022e65SFelix Fietkau */ 2745a7022e65SFelix Fietkau int max_tries = 5; 2746a7022e65SFelix Fietkau 2747a7022e65SFelix Fietkau ieee80211_extend_absent_time(data, tsf, &offset); 2748a7022e65SFelix Fietkau do { 2749a7022e65SFelix Fietkau if (!ieee80211_extend_absent_time(data, tsf, &offset)) 2750a7022e65SFelix Fietkau break; 2751a7022e65SFelix Fietkau 2752a7022e65SFelix Fietkau tries++; 2753a7022e65SFelix Fietkau } while (tries < max_tries); 2754a7022e65SFelix Fietkau 2755a7022e65SFelix Fietkau return offset; 2756a7022e65SFelix Fietkau } 2757a7022e65SFelix Fietkau 2758a7022e65SFelix Fietkau void ieee80211_update_p2p_noa(struct ieee80211_noa_data *data, u32 tsf) 2759a7022e65SFelix Fietkau { 2760a7022e65SFelix Fietkau u32 next_offset = BIT(31) - 1; 2761a7022e65SFelix Fietkau int i; 2762a7022e65SFelix Fietkau 2763a7022e65SFelix Fietkau data->absent = 0; 2764a7022e65SFelix Fietkau data->has_next_tsf = false; 2765a7022e65SFelix Fietkau for (i = 0; i < IEEE80211_P2P_NOA_DESC_MAX; i++) { 2766a7022e65SFelix Fietkau s32 start; 2767a7022e65SFelix Fietkau 2768a7022e65SFelix Fietkau if (!data->count[i]) 2769a7022e65SFelix Fietkau continue; 2770a7022e65SFelix Fietkau 2771a7022e65SFelix Fietkau ieee80211_extend_noa_desc(data, tsf, i); 2772a7022e65SFelix Fietkau start = data->desc[i].start - tsf; 2773a7022e65SFelix Fietkau if (start <= 0) 2774a7022e65SFelix Fietkau data->absent |= BIT(i); 2775a7022e65SFelix Fietkau 2776a7022e65SFelix Fietkau if (next_offset > start) 2777a7022e65SFelix Fietkau next_offset = start; 2778a7022e65SFelix Fietkau 2779a7022e65SFelix Fietkau data->has_next_tsf = true; 2780a7022e65SFelix Fietkau } 2781a7022e65SFelix Fietkau 2782a7022e65SFelix Fietkau if (data->absent) 2783a7022e65SFelix Fietkau next_offset = ieee80211_get_noa_absent_time(data, tsf); 2784a7022e65SFelix Fietkau 2785a7022e65SFelix Fietkau data->next_tsf = tsf + next_offset; 2786a7022e65SFelix Fietkau } 2787a7022e65SFelix Fietkau EXPORT_SYMBOL(ieee80211_update_p2p_noa); 2788a7022e65SFelix Fietkau 2789a7022e65SFelix Fietkau int ieee80211_parse_p2p_noa(const struct ieee80211_p2p_noa_attr *attr, 2790a7022e65SFelix Fietkau struct ieee80211_noa_data *data, u32 tsf) 2791a7022e65SFelix Fietkau { 2792a7022e65SFelix Fietkau int ret = 0; 2793a7022e65SFelix Fietkau int i; 2794a7022e65SFelix Fietkau 2795a7022e65SFelix Fietkau memset(data, 0, sizeof(*data)); 2796a7022e65SFelix Fietkau 2797a7022e65SFelix Fietkau for (i = 0; i < IEEE80211_P2P_NOA_DESC_MAX; i++) { 2798a7022e65SFelix Fietkau const struct ieee80211_p2p_noa_desc *desc = &attr->desc[i]; 2799a7022e65SFelix Fietkau 2800a7022e65SFelix Fietkau if (!desc->count || !desc->duration) 2801a7022e65SFelix Fietkau continue; 2802a7022e65SFelix Fietkau 2803a7022e65SFelix Fietkau data->count[i] = desc->count; 2804a7022e65SFelix Fietkau data->desc[i].start = le32_to_cpu(desc->start_time); 2805a7022e65SFelix Fietkau data->desc[i].duration = le32_to_cpu(desc->duration); 2806a7022e65SFelix Fietkau data->desc[i].interval = le32_to_cpu(desc->interval); 2807a7022e65SFelix Fietkau 2808a7022e65SFelix Fietkau if (data->count[i] > 1 && 2809a7022e65SFelix Fietkau data->desc[i].interval < data->desc[i].duration) 2810a7022e65SFelix Fietkau continue; 2811a7022e65SFelix Fietkau 2812a7022e65SFelix Fietkau ieee80211_extend_noa_desc(data, tsf, i); 2813a7022e65SFelix Fietkau ret++; 2814a7022e65SFelix Fietkau } 2815a7022e65SFelix Fietkau 2816a7022e65SFelix Fietkau if (ret) 2817a7022e65SFelix Fietkau ieee80211_update_p2p_noa(data, tsf); 2818a7022e65SFelix Fietkau 2819a7022e65SFelix Fietkau return ret; 2820a7022e65SFelix Fietkau } 2821a7022e65SFelix Fietkau EXPORT_SYMBOL(ieee80211_parse_p2p_noa); 2822057d5f4bSThomas Pedersen 2823057d5f4bSThomas Pedersen void ieee80211_recalc_dtim(struct ieee80211_local *local, 2824057d5f4bSThomas Pedersen struct ieee80211_sub_if_data *sdata) 2825057d5f4bSThomas Pedersen { 2826057d5f4bSThomas Pedersen u64 tsf = drv_get_tsf(local, sdata); 2827057d5f4bSThomas Pedersen u64 dtim_count = 0; 2828057d5f4bSThomas Pedersen u16 beacon_int = sdata->vif.bss_conf.beacon_int * 1024; 2829057d5f4bSThomas Pedersen u8 dtim_period = sdata->vif.bss_conf.dtim_period; 2830057d5f4bSThomas Pedersen struct ps_data *ps; 2831057d5f4bSThomas Pedersen u8 bcns_from_dtim; 2832057d5f4bSThomas Pedersen 2833057d5f4bSThomas Pedersen if (tsf == -1ULL || !beacon_int || !dtim_period) 2834057d5f4bSThomas Pedersen return; 2835057d5f4bSThomas Pedersen 2836057d5f4bSThomas Pedersen if (sdata->vif.type == NL80211_IFTYPE_AP || 2837057d5f4bSThomas Pedersen sdata->vif.type == NL80211_IFTYPE_AP_VLAN) { 2838057d5f4bSThomas Pedersen if (!sdata->bss) 2839057d5f4bSThomas Pedersen return; 2840057d5f4bSThomas Pedersen 2841057d5f4bSThomas Pedersen ps = &sdata->bss->ps; 2842057d5f4bSThomas Pedersen } else if (ieee80211_vif_is_mesh(&sdata->vif)) { 2843057d5f4bSThomas Pedersen ps = &sdata->u.mesh.ps; 2844057d5f4bSThomas Pedersen } else { 2845057d5f4bSThomas Pedersen return; 2846057d5f4bSThomas Pedersen } 2847057d5f4bSThomas Pedersen 2848057d5f4bSThomas Pedersen /* 2849057d5f4bSThomas Pedersen * actually finds last dtim_count, mac80211 will update in 2850057d5f4bSThomas Pedersen * __beacon_add_tim(). 2851057d5f4bSThomas Pedersen * dtim_count = dtim_period - (tsf / bcn_int) % dtim_period 2852057d5f4bSThomas Pedersen */ 2853057d5f4bSThomas Pedersen do_div(tsf, beacon_int); 2854057d5f4bSThomas Pedersen bcns_from_dtim = do_div(tsf, dtim_period); 2855057d5f4bSThomas Pedersen /* just had a DTIM */ 2856057d5f4bSThomas Pedersen if (!bcns_from_dtim) 2857057d5f4bSThomas Pedersen dtim_count = 0; 2858057d5f4bSThomas Pedersen else 2859057d5f4bSThomas Pedersen dtim_count = dtim_period - bcns_from_dtim; 2860057d5f4bSThomas Pedersen 2861057d5f4bSThomas Pedersen ps->dtim_count = dtim_count; 2862057d5f4bSThomas Pedersen } 286373de86a3SLuciano Coelho 286473de86a3SLuciano Coelho int ieee80211_check_combinations(struct ieee80211_sub_if_data *sdata, 286573de86a3SLuciano Coelho const struct cfg80211_chan_def *chandef, 286673de86a3SLuciano Coelho enum ieee80211_chanctx_mode chanmode, 286773de86a3SLuciano Coelho u8 radar_detect) 286873de86a3SLuciano Coelho { 286973de86a3SLuciano Coelho struct ieee80211_local *local = sdata->local; 287073de86a3SLuciano Coelho struct ieee80211_sub_if_data *sdata_iter; 287173de86a3SLuciano Coelho enum nl80211_iftype iftype = sdata->wdev.iftype; 287273de86a3SLuciano Coelho int num[NUM_NL80211_IFTYPES]; 287373de86a3SLuciano Coelho struct ieee80211_chanctx *ctx; 2874b6a55015SLuciano Coelho int num_different_channels = 0; 287573de86a3SLuciano Coelho int total = 1; 287673de86a3SLuciano Coelho 287773de86a3SLuciano Coelho lockdep_assert_held(&local->chanctx_mtx); 287873de86a3SLuciano Coelho 287973de86a3SLuciano Coelho if (WARN_ON(hweight32(radar_detect) > 1)) 288073de86a3SLuciano Coelho return -EINVAL; 288173de86a3SLuciano Coelho 2882b6a55015SLuciano Coelho if (WARN_ON(chandef && chanmode == IEEE80211_CHANCTX_SHARED && 2883b6a55015SLuciano Coelho !chandef->chan)) 288473de86a3SLuciano Coelho return -EINVAL; 288573de86a3SLuciano Coelho 2886b6a55015SLuciano Coelho if (chandef) 2887b6a55015SLuciano Coelho num_different_channels = 1; 2888b6a55015SLuciano Coelho 288973de86a3SLuciano Coelho if (WARN_ON(iftype >= NUM_NL80211_IFTYPES)) 289073de86a3SLuciano Coelho return -EINVAL; 289173de86a3SLuciano Coelho 289273de86a3SLuciano Coelho /* Always allow software iftypes */ 289373de86a3SLuciano Coelho if (local->hw.wiphy->software_iftypes & BIT(iftype)) { 289473de86a3SLuciano Coelho if (radar_detect) 289573de86a3SLuciano Coelho return -EINVAL; 289673de86a3SLuciano Coelho return 0; 289773de86a3SLuciano Coelho } 289873de86a3SLuciano Coelho 289973de86a3SLuciano Coelho memset(num, 0, sizeof(num)); 290073de86a3SLuciano Coelho 290173de86a3SLuciano Coelho if (iftype != NL80211_IFTYPE_UNSPECIFIED) 290273de86a3SLuciano Coelho num[iftype] = 1; 290373de86a3SLuciano Coelho 290473de86a3SLuciano Coelho list_for_each_entry(ctx, &local->chanctx_list, list) { 290573de86a3SLuciano Coelho if (ctx->conf.radar_enabled) 290673de86a3SLuciano Coelho radar_detect |= BIT(ctx->conf.def.width); 290773de86a3SLuciano Coelho if (ctx->mode == IEEE80211_CHANCTX_EXCLUSIVE) { 290873de86a3SLuciano Coelho num_different_channels++; 290973de86a3SLuciano Coelho continue; 291073de86a3SLuciano Coelho } 2911b6a55015SLuciano Coelho if (chandef && chanmode == IEEE80211_CHANCTX_SHARED && 291273de86a3SLuciano Coelho cfg80211_chandef_compatible(chandef, 291373de86a3SLuciano Coelho &ctx->conf.def)) 291473de86a3SLuciano Coelho continue; 291573de86a3SLuciano Coelho num_different_channels++; 291673de86a3SLuciano Coelho } 291773de86a3SLuciano Coelho 291873de86a3SLuciano Coelho list_for_each_entry_rcu(sdata_iter, &local->interfaces, list) { 291973de86a3SLuciano Coelho struct wireless_dev *wdev_iter; 292073de86a3SLuciano Coelho 292173de86a3SLuciano Coelho wdev_iter = &sdata_iter->wdev; 292273de86a3SLuciano Coelho 292373de86a3SLuciano Coelho if (sdata_iter == sdata || 292473de86a3SLuciano Coelho rcu_access_pointer(sdata_iter->vif.chanctx_conf) == NULL || 292573de86a3SLuciano Coelho local->hw.wiphy->software_iftypes & BIT(wdev_iter->iftype)) 292673de86a3SLuciano Coelho continue; 292773de86a3SLuciano Coelho 292873de86a3SLuciano Coelho num[wdev_iter->iftype]++; 292973de86a3SLuciano Coelho total++; 293073de86a3SLuciano Coelho } 293173de86a3SLuciano Coelho 293273de86a3SLuciano Coelho if (total == 1 && !radar_detect) 293373de86a3SLuciano Coelho return 0; 293473de86a3SLuciano Coelho 293573de86a3SLuciano Coelho return cfg80211_check_combinations(local->hw.wiphy, 293673de86a3SLuciano Coelho num_different_channels, 293773de86a3SLuciano Coelho radar_detect, num); 293873de86a3SLuciano Coelho } 29396fa001bcSMichal Kazior 29406fa001bcSMichal Kazior static void 29416fa001bcSMichal Kazior ieee80211_iter_max_chans(const struct ieee80211_iface_combination *c, 29426fa001bcSMichal Kazior void *data) 29436fa001bcSMichal Kazior { 29446fa001bcSMichal Kazior u32 *max_num_different_channels = data; 29456fa001bcSMichal Kazior 29466fa001bcSMichal Kazior *max_num_different_channels = max(*max_num_different_channels, 29476fa001bcSMichal Kazior c->num_different_channels); 29486fa001bcSMichal Kazior } 29496fa001bcSMichal Kazior 29506fa001bcSMichal Kazior int ieee80211_max_num_channels(struct ieee80211_local *local) 29516fa001bcSMichal Kazior { 29526fa001bcSMichal Kazior struct ieee80211_sub_if_data *sdata; 29536fa001bcSMichal Kazior int num[NUM_NL80211_IFTYPES] = {}; 29546fa001bcSMichal Kazior struct ieee80211_chanctx *ctx; 29556fa001bcSMichal Kazior int num_different_channels = 0; 29566fa001bcSMichal Kazior u8 radar_detect = 0; 29576fa001bcSMichal Kazior u32 max_num_different_channels = 1; 29586fa001bcSMichal Kazior int err; 29596fa001bcSMichal Kazior 29606fa001bcSMichal Kazior lockdep_assert_held(&local->chanctx_mtx); 29616fa001bcSMichal Kazior 29626fa001bcSMichal Kazior list_for_each_entry(ctx, &local->chanctx_list, list) { 29636fa001bcSMichal Kazior num_different_channels++; 29646fa001bcSMichal Kazior 29656fa001bcSMichal Kazior if (ctx->conf.radar_enabled) 29666fa001bcSMichal Kazior radar_detect |= BIT(ctx->conf.def.width); 29676fa001bcSMichal Kazior } 29686fa001bcSMichal Kazior 29696fa001bcSMichal Kazior list_for_each_entry_rcu(sdata, &local->interfaces, list) 29706fa001bcSMichal Kazior num[sdata->wdev.iftype]++; 29716fa001bcSMichal Kazior 29726fa001bcSMichal Kazior err = cfg80211_iter_combinations(local->hw.wiphy, 29736fa001bcSMichal Kazior num_different_channels, radar_detect, 29746fa001bcSMichal Kazior num, ieee80211_iter_max_chans, 29756fa001bcSMichal Kazior &max_num_different_channels); 29766fa001bcSMichal Kazior if (err < 0) 29776fa001bcSMichal Kazior return err; 29786fa001bcSMichal Kazior 29796fa001bcSMichal Kazior return max_num_different_channels; 29806fa001bcSMichal Kazior } 2981