diff options
author | David S. Miller <davem@davemloft.net> | 2017-04-20 13:54:40 -0400 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2017-04-20 13:54:40 -0400 |
commit | 028f43bc64401ead2bf86adcef1b7ffdbb170509 (patch) | |
tree | 7fff5ae2f854874aa86b9826d3bd8197326b102f /net/mac80211 | |
parent | 0ef9059d4117e92f35525ce260b1f8eca2b569fa (diff) | |
parent | bbf67e450a5dc2a595e1e7a67b4869f1a7f5a338 (diff) |
Merge tag 'mac80211-next-for-davem-2017-04-18' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next
Johannes Berg says:
====================
My last pull request has been a while, we now have:
* connection quality monitoring with multiple thresholds
* support for FILS shared key authentication offload
* pre-CAC regulatory compliance - only ETSI allows this
* sanity check for some rate confusion that hit ChromeOS
(but nobody else uses it, evidently)
* some documentation updates
* lots of cleanups
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/mac80211')
-rw-r--r-- | net/mac80211/agg-rx.c | 12 | ||||
-rw-r--r-- | net/mac80211/agg-tx.c | 12 | ||||
-rw-r--r-- | net/mac80211/cfg.c | 203 | ||||
-rw-r--r-- | net/mac80211/ibss.c | 4 | ||||
-rw-r--r-- | net/mac80211/ieee80211_i.h | 3 | ||||
-rw-r--r-- | net/mac80211/iface.c | 19 | ||||
-rw-r--r-- | net/mac80211/main.c | 1 | ||||
-rw-r--r-- | net/mac80211/mesh.c | 10 | ||||
-rw-r--r-- | net/mac80211/mesh_hwmp.c | 23 | ||||
-rw-r--r-- | net/mac80211/mesh_pathtbl.c | 8 | ||||
-rw-r--r-- | net/mac80211/mlme.c | 41 | ||||
-rw-r--r-- | net/mac80211/rate.c | 43 | ||||
-rw-r--r-- | net/mac80211/rate.h | 3 | ||||
-rw-r--r-- | net/mac80211/rx.c | 50 | ||||
-rw-r--r-- | net/mac80211/spectmgmt.c | 4 | ||||
-rw-r--r-- | net/mac80211/sta_info.c | 11 | ||||
-rw-r--r-- | net/mac80211/sta_info.h | 18 | ||||
-rw-r--r-- | net/mac80211/tx.c | 8 | ||||
-rw-r--r-- | net/mac80211/util.c | 22 |
19 files changed, 333 insertions, 162 deletions
diff --git a/net/mac80211/agg-rx.c b/net/mac80211/agg-rx.c index 4456559cb056..1b7a4daf283c 100644 --- a/net/mac80211/agg-rx.c +++ b/net/mac80211/agg-rx.c @@ -357,14 +357,14 @@ void __ieee80211_start_rx_ba_session(struct sta_info *sta, spin_lock_init(&tid_agg_rx->reorder_lock); /* rx timer */ - tid_agg_rx->session_timer.function = sta_rx_agg_session_timer_expired; - tid_agg_rx->session_timer.data = (unsigned long)&sta->timer_to_tid[tid]; - init_timer_deferrable(&tid_agg_rx->session_timer); + setup_deferrable_timer(&tid_agg_rx->session_timer, + sta_rx_agg_session_timer_expired, + (unsigned long)&sta->timer_to_tid[tid]); /* rx reorder timer */ - tid_agg_rx->reorder_timer.function = sta_rx_agg_reorder_timer_expired; - tid_agg_rx->reorder_timer.data = (unsigned long)&sta->timer_to_tid[tid]; - init_timer(&tid_agg_rx->reorder_timer); + setup_timer(&tid_agg_rx->reorder_timer, + sta_rx_agg_reorder_timer_expired, + (unsigned long)&sta->timer_to_tid[tid]); /* prepare reordering buffer */ tid_agg_rx->reorder_buf = diff --git a/net/mac80211/agg-tx.c b/net/mac80211/agg-tx.c index 45319cc01121..60e2a62f7bef 100644 --- a/net/mac80211/agg-tx.c +++ b/net/mac80211/agg-tx.c @@ -670,14 +670,14 @@ int ieee80211_start_tx_ba_session(struct ieee80211_sta *pubsta, u16 tid, tid_tx->timeout = timeout; /* response timer */ - tid_tx->addba_resp_timer.function = sta_addba_resp_timer_expired; - tid_tx->addba_resp_timer.data = (unsigned long)&sta->timer_to_tid[tid]; - init_timer(&tid_tx->addba_resp_timer); + setup_timer(&tid_tx->addba_resp_timer, + sta_addba_resp_timer_expired, + (unsigned long)&sta->timer_to_tid[tid]); /* tx timer */ - tid_tx->session_timer.function = sta_tx_agg_session_timer_expired; - tid_tx->session_timer.data = (unsigned long)&sta->timer_to_tid[tid]; - init_timer_deferrable(&tid_tx->session_timer); + setup_deferrable_timer(&tid_tx->session_timer, + sta_tx_agg_session_timer_expired, + (unsigned long)&sta->timer_to_tid[tid]); /* assign a dialog token */ sta->ampdu_mlme.dialog_token_allocator++; diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index ac879bb17870..d041f78ecee6 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -3,7 +3,7 @@ * * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net> * Copyright 2013-2015 Intel Mobile Communications GmbH - * Copyright (C) 2015-2016 Intel Deutschland GmbH + * Copyright (C) 2015-2017 Intel Deutschland GmbH * * This file is GPLv2 as found in COPYING. */ @@ -22,11 +22,98 @@ #include "mesh.h" #include "wme.h" +static void ieee80211_set_mu_mimo_follow(struct ieee80211_sub_if_data *sdata, + struct vif_params *params) +{ + bool mu_mimo_groups = false; + bool mu_mimo_follow = false; + + if (params->vht_mumimo_groups) { + u64 membership; + + BUILD_BUG_ON(sizeof(membership) != WLAN_MEMBERSHIP_LEN); + + memcpy(sdata->vif.bss_conf.mu_group.membership, + params->vht_mumimo_groups, WLAN_MEMBERSHIP_LEN); + memcpy(sdata->vif.bss_conf.mu_group.position, + params->vht_mumimo_groups + WLAN_MEMBERSHIP_LEN, + WLAN_USER_POSITION_LEN); + ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MU_GROUPS); + /* don't care about endianness - just check for 0 */ + memcpy(&membership, params->vht_mumimo_groups, + WLAN_MEMBERSHIP_LEN); + mu_mimo_groups = membership != 0; + } + + if (params->vht_mumimo_follow_addr) { + mu_mimo_follow = + is_valid_ether_addr(params->vht_mumimo_follow_addr); + ether_addr_copy(sdata->u.mntr.mu_follow_addr, + params->vht_mumimo_follow_addr); + } + + sdata->vif.mu_mimo_owner = mu_mimo_groups || mu_mimo_follow; +} + +static int ieee80211_set_mon_options(struct ieee80211_sub_if_data *sdata, + struct vif_params *params) +{ + struct ieee80211_local *local = sdata->local; + struct ieee80211_sub_if_data *monitor_sdata; + + /* check flags first */ + if (params->flags && ieee80211_sdata_running(sdata)) { + u32 mask = MONITOR_FLAG_COOK_FRAMES | MONITOR_FLAG_ACTIVE; + + /* + * Prohibit MONITOR_FLAG_COOK_FRAMES and + * MONITOR_FLAG_ACTIVE to be changed while the + * interface is up. + * Else we would need to add a lot of cruft + * to update everything: + * cooked_mntrs, monitor and all fif_* counters + * reconfigure hardware + */ + if ((params->flags & mask) != (sdata->u.mntr.flags & mask)) + return -EBUSY; + } + + /* also validate MU-MIMO change */ + monitor_sdata = rtnl_dereference(local->monitor_sdata); + + if (!monitor_sdata && + (params->vht_mumimo_groups || params->vht_mumimo_follow_addr)) + return -EOPNOTSUPP; + + /* apply all changes now - no failures allowed */ + + if (monitor_sdata) + ieee80211_set_mu_mimo_follow(monitor_sdata, params); + + if (params->flags) { + if (ieee80211_sdata_running(sdata)) { + ieee80211_adjust_monitor_flags(sdata, -1); + sdata->u.mntr.flags = params->flags; + ieee80211_adjust_monitor_flags(sdata, 1); + + ieee80211_configure_filter(local); + } else { + /* + * Because the interface is down, ieee80211_do_stop + * and ieee80211_do_open take care of "everything" + * mentioned in the comment above. + */ + sdata->u.mntr.flags = params->flags; + } + } + + return 0; +} + static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy, const char *name, unsigned char name_assign_type, enum nl80211_iftype type, - u32 *flags, struct vif_params *params) { struct ieee80211_local *local = wiphy_priv(wiphy); @@ -38,9 +125,14 @@ static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy, if (err) return ERR_PTR(err); - if (type == NL80211_IFTYPE_MONITOR && flags) { - sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); - sdata->u.mntr.flags = *flags; + sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); + + if (type == NL80211_IFTYPE_MONITOR) { + err = ieee80211_set_mon_options(sdata, params); + if (err) { + ieee80211_if_remove(sdata); + return NULL; + } } return wdev; @@ -55,7 +147,7 @@ static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev) static int ieee80211_change_iface(struct wiphy *wiphy, struct net_device *dev, - enum nl80211_iftype type, u32 *flags, + enum nl80211_iftype type, struct vif_params *params) { struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); @@ -75,58 +167,9 @@ static int ieee80211_change_iface(struct wiphy *wiphy, } if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { - struct ieee80211_local *local = sdata->local; - struct ieee80211_sub_if_data *monitor_sdata; - u32 mu_mntr_cap_flag = NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER; - - monitor_sdata = rtnl_dereference(local->monitor_sdata); - if (monitor_sdata && - wiphy_ext_feature_isset(wiphy, mu_mntr_cap_flag)) { - memcpy(monitor_sdata->vif.bss_conf.mu_group.membership, - params->vht_mumimo_groups, WLAN_MEMBERSHIP_LEN); - memcpy(monitor_sdata->vif.bss_conf.mu_group.position, - params->vht_mumimo_groups + WLAN_MEMBERSHIP_LEN, - WLAN_USER_POSITION_LEN); - monitor_sdata->vif.mu_mimo_owner = true; - ieee80211_bss_info_change_notify(monitor_sdata, - BSS_CHANGED_MU_GROUPS); - - ether_addr_copy(monitor_sdata->u.mntr.mu_follow_addr, - params->macaddr); - } - - if (!flags) - return 0; - - if (ieee80211_sdata_running(sdata)) { - u32 mask = MONITOR_FLAG_COOK_FRAMES | - MONITOR_FLAG_ACTIVE; - - /* - * Prohibit MONITOR_FLAG_COOK_FRAMES and - * MONITOR_FLAG_ACTIVE to be changed while the - * interface is up. - * Else we would need to add a lot of cruft - * to update everything: - * cooked_mntrs, monitor and all fif_* counters - * reconfigure hardware - */ - if ((*flags & mask) != (sdata->u.mntr.flags & mask)) - return -EBUSY; - - ieee80211_adjust_monitor_flags(sdata, -1); - sdata->u.mntr.flags = *flags; - ieee80211_adjust_monitor_flags(sdata, 1); - - ieee80211_configure_filter(local); - } else { - /* - * Because the interface is down, ieee80211_do_stop - * and ieee80211_do_open take care of "everything" - * mentioned in the comment above. - */ - sdata->u.mntr.flags = *flags; - } + ret = ieee80211_set_mon_options(sdata, params); + if (ret) + return ret; } return 0; @@ -2042,6 +2085,7 @@ static int ieee80211_change_bss(struct wiphy *wiphy, params->basic_rates_len, &sdata->vif.bss_conf.basic_rates); changed |= BSS_CHANGED_BASIC_RATES; + ieee80211_check_rate_mask(sdata); } if (params->ap_isolate >= 0) { @@ -2630,6 +2674,33 @@ static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy, bss_conf->cqm_rssi_thold = rssi_thold; bss_conf->cqm_rssi_hyst = rssi_hyst; + bss_conf->cqm_rssi_low = 0; + bss_conf->cqm_rssi_high = 0; + sdata->u.mgd.last_cqm_event_signal = 0; + + /* tell the driver upon association, unless already associated */ + if (sdata->u.mgd.associated && + sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) + ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); + + return 0; +} + +static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy, + struct net_device *dev, + s32 rssi_low, s32 rssi_high) +{ + struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); + struct ieee80211_vif *vif = &sdata->vif; + struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; + + if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER) + return -EOPNOTSUPP; + + bss_conf->cqm_rssi_low = rssi_low; + bss_conf->cqm_rssi_high = rssi_high; + bss_conf->cqm_rssi_thold = 0; + bss_conf->cqm_rssi_hyst = 0; sdata->u.mgd.last_cqm_event_signal = 0; /* tell the driver upon association, unless already associated */ @@ -2658,6 +2729,21 @@ static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, return ret; } + /* + * If active validate the setting and reject it if it doesn't leave + * at least one basic rate usable, since we really have to be able + * to send something, and if we're an AP we have to be able to do + * so at a basic rate so that all clients can receive it. + */ + if (rcu_access_pointer(sdata->vif.chanctx_conf) && + sdata->vif.bss_conf.chandef.chan) { + u32 basic_rates = sdata->vif.bss_conf.basic_rates; + enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band; + + if (!(mask->control[band].legacy & basic_rates)) + return -EINVAL; + } + for (i = 0; i < NUM_NL80211_BANDS; i++) { struct ieee80211_supported_band *sband = wiphy->bands[i]; int j; @@ -3639,6 +3725,7 @@ const struct cfg80211_ops mac80211_config_ops = { .mgmt_tx = ieee80211_mgmt_tx, .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait, .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, + .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config, .mgmt_frame_register = ieee80211_mgmt_frame_register, .set_antenna = ieee80211_set_antenna, .get_antenna = ieee80211_get_antenna, diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c index 98999d3d5262..e957351976a2 100644 --- a/net/mac80211/ibss.c +++ b/net/mac80211/ibss.c @@ -425,7 +425,7 @@ static void ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata, case NL80211_CHAN_WIDTH_5: case NL80211_CHAN_WIDTH_10: cfg80211_chandef_create(&chandef, cbss->channel, - NL80211_CHAN_WIDTH_20_NOHT); + NL80211_CHAN_NO_HT); chandef.width = sdata->u.ibss.chandef.width; break; case NL80211_CHAN_WIDTH_80: @@ -437,7 +437,7 @@ static void ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata, default: /* fall back to 20 MHz for unsupported modes */ cfg80211_chandef_create(&chandef, cbss->channel, - NL80211_CHAN_WIDTH_20_NOHT); + NL80211_CHAN_NO_HT); break; } diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 0e718437d080..cf6d5abb65a3 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -839,6 +839,8 @@ struct txq_info { struct ieee80211_if_mntr { u32 flags; u8 mu_follow_addr[ETH_ALEN] __aligned(2); + + struct list_head list; }; /** @@ -1259,6 +1261,7 @@ struct ieee80211_local { /* see iface.c */ struct list_head interfaces; + struct list_head mon_list; /* only that are IFF_UP && !cooked */ struct mutex iflist_mtx; /* diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c index 5bb0c5012819..3bd5b81f5d81 100644 --- a/net/mac80211/iface.c +++ b/net/mac80211/iface.c @@ -676,7 +676,8 @@ int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up) set_bit(SDATA_STATE_RUNNING, &sdata->state); - if (sdata->vif.type == NL80211_IFTYPE_WDS) { + switch (sdata->vif.type) { + case NL80211_IFTYPE_WDS: /* Create STA entry for the WDS peer */ sta = sta_info_alloc(sdata, sdata->u.wds.remote_addr, GFP_KERNEL); @@ -697,8 +698,17 @@ int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up) rate_control_rate_init(sta); netif_carrier_on(dev); - } else if (sdata->vif.type == NL80211_IFTYPE_P2P_DEVICE) { + break; + case NL80211_IFTYPE_P2P_DEVICE: rcu_assign_pointer(local->p2p_sdata, sdata); + break; + case NL80211_IFTYPE_MONITOR: + if (sdata->u.mntr.flags & MONITOR_FLAG_COOK_FRAMES) + break; + list_add_tail_rcu(&sdata->u.mntr.list, &local->mon_list); + break; + default: + break; } /* @@ -817,6 +827,11 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata, case NL80211_IFTYPE_AP: cancel_work_sync(&sdata->u.ap.request_smps_work); break; + case NL80211_IFTYPE_MONITOR: + if (sdata->u.mntr.flags & MONITOR_FLAG_COOK_FRAMES) + break; + list_del_rcu(&sdata->u.mntr.list); + break; default: break; } diff --git a/net/mac80211/main.c b/net/mac80211/main.c index 56fb47953b72..ae408a96c407 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -603,6 +603,7 @@ struct ieee80211_hw *ieee80211_alloc_hw_nm(size_t priv_data_len, ARRAY_SIZE(local->ext_capa); INIT_LIST_HEAD(&local->interfaces); + INIT_LIST_HEAD(&local->mon_list); __hw_addr_init(&local->mc_list); diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c index 6e7b6a07b7d5..281d834c7548 100644 --- a/net/mac80211/mesh.c +++ b/net/mac80211/mesh.c @@ -1100,8 +1100,14 @@ static void ieee80211_mesh_rx_bcn_presp(struct ieee80211_sub_if_data *sdata, if (!channel || channel->flags & IEEE80211_CHAN_DISABLED) return; - if (mesh_matches_local(sdata, &elems)) - mesh_neighbour_update(sdata, mgmt->sa, &elems); + if (mesh_matches_local(sdata, &elems)) { + mpl_dbg(sdata, "rssi_threshold=%d,rx_status->signal=%d\n", + sdata->u.mesh.mshcfg.rssi_threshold, rx_status->signal); + if (!sdata->u.mesh.user_mpm || + sdata->u.mesh.mshcfg.rssi_threshold == 0 || + sdata->u.mesh.mshcfg.rssi_threshold < rx_status->signal) + mesh_neighbour_update(sdata, mgmt->sa, &elems); + } if (ifmsh->sync_ops) ifmsh->sync_ops->rx_bcn_presp(sdata, diff --git a/net/mac80211/mesh_hwmp.c b/net/mac80211/mesh_hwmp.c index b747c9645e43..4005edd71fe8 100644 --- a/net/mac80211/mesh_hwmp.c +++ b/net/mac80211/mesh_hwmp.c @@ -16,6 +16,7 @@ #define TEST_FRAME_LEN 8192 #define MAX_METRIC 0xffffffff #define ARITH_SHIFT 8 +#define LINK_FAIL_THRESH 95 #define MAX_PREQ_QUEUE_LEN 64 @@ -307,10 +308,12 @@ void ieee80211s_update_metric(struct ieee80211_local *local, failed = !(txinfo->flags & IEEE80211_TX_STAT_ACK); - /* moving average, scaled to 100 */ - sta->mesh->fail_avg = - ((80 * sta->mesh->fail_avg + 5) / 100 + 20 * failed); - if (sta->mesh->fail_avg > 95) + /* moving average, scaled to 100. + * feed failure as 100 and success as 0 + */ + ewma_mesh_fail_avg_add(&sta->mesh->fail_avg, failed * 100); + if (ewma_mesh_fail_avg_read(&sta->mesh->fail_avg) > + LINK_FAIL_THRESH) mesh_plink_broken(sta); } @@ -325,6 +328,8 @@ static u32 airtime_link_metric_get(struct ieee80211_local *local, int rate, err; u32 tx_time, estimated_retx; u64 result; + unsigned long fail_avg = + ewma_mesh_fail_avg_read(&sta->mesh->fail_avg); /* Try to get rate based on HW/SW RC algorithm. * Rate is returned in units of Kbps, correct this @@ -336,7 +341,7 @@ static u32 airtime_link_metric_get(struct ieee80211_local *local, if (rate) { err = 0; } else { - if (sta->mesh->fail_avg >= 100) + if (fail_avg > LINK_FAIL_THRESH) return MAX_METRIC; sta_set_rate_info_tx(sta, &sta->tx_stats.last_rate, &rinfo); @@ -344,7 +349,7 @@ static u32 airtime_link_metric_get(struct ieee80211_local *local, if (WARN_ON(!rate)) return MAX_METRIC; - err = (sta->mesh->fail_avg << ARITH_SHIFT) / 100; + err = (fail_avg << ARITH_SHIFT) / 100; } /* bitrate is in units of 100 Kbps, while we need rate in units of @@ -484,6 +489,9 @@ static u32 hwmp_route_info_get(struct ieee80211_sub_if_data *sdata, ? mpath->exp_time : exp_time; mesh_path_activate(mpath); spin_unlock_bh(&mpath->state_lock); + ewma_mesh_fail_avg_init(&sta->mesh->fail_avg); + /* init it at a low value - 0 start is tricky */ + ewma_mesh_fail_avg_add(&sta->mesh->fail_avg, 1); mesh_path_tx_pending(mpath); /* draft says preq_id should be saved to, but there does * not seem to be any use for it, skipping by now @@ -522,6 +530,9 @@ static u32 hwmp_route_info_get(struct ieee80211_sub_if_data *sdata, ? mpath->exp_time : exp_time; mesh_path_activate(mpath); spin_unlock_bh(&mpath->state_lock); + ewma_mesh_fail_avg_init(&sta->mesh->fail_avg); + /* init it at a low value - 0 start is tricky */ + ewma_mesh_fail_avg_add(&sta->mesh->fail_avg, 1); mesh_path_tx_pending(mpath); } else spin_unlock_bh(&mpath->state_lock); diff --git a/net/mac80211/mesh_pathtbl.c b/net/mac80211/mesh_pathtbl.c index f0e6175a9821..97269caafecd 100644 --- a/net/mac80211/mesh_pathtbl.c +++ b/net/mac80211/mesh_pathtbl.c @@ -397,11 +397,10 @@ struct mesh_path *mesh_path_new(struct ieee80211_sub_if_data *sdata, new_mpath->sdata = sdata; new_mpath->flags = 0; skb_queue_head_init(&new_mpath->frame_queue); - new_mpath->timer.data = (unsigned long) new_mpath; - new_mpath->timer.function = mesh_path_timer; new_mpath->exp_time = jiffies; spin_lock_init(&new_mpath->state_lock); - init_timer(&new_mpath->timer); + setup_timer(&new_mpath->timer, mesh_path_timer, + (unsigned long) new_mpath); return new_mpath; } @@ -829,6 +828,9 @@ void mesh_path_fix_nexthop(struct mesh_path *mpath, struct sta_info *next_hop) mpath->flags = MESH_PATH_FIXED | MESH_PATH_SN_VALID; mesh_path_activate(mpath); spin_unlock_bh(&mpath->state_lock); + ewma_mesh_fail_avg_init(&next_hop->mesh->fail_avg); + /* init it at a low value - 0 start is tricky */ + ewma_mesh_fail_avg_add(&next_hop->mesh->fail_avg, 1); mesh_path_tx_pending(mpath); } diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index 6e90301154d5..24d69bcf71ad 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -1908,6 +1908,8 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata, sdata->u.mgd.associated = cbss; memcpy(sdata->u.mgd.bssid, cbss->bssid, ETH_ALEN); + ieee80211_check_rate_mask(sdata); + sdata->u.mgd.flags |= IEEE80211_STA_RESET_SIGNAL_AVE; if (sdata->vif.p2p || @@ -2797,8 +2799,9 @@ static void ieee80211_rx_mgmt_disassoc(struct ieee80211_sub_if_data *sdata, reason_code = le16_to_cpu(mgmt->u.disassoc.reason_code); - sdata_info(sdata, "disassociated from %pM (Reason: %u)\n", - mgmt->sa, reason_code); + sdata_info(sdata, "disassociated from %pM (Reason: %u=%s)\n", + mgmt->sa, reason_code, + ieee80211_get_reason_code_string(reason_code)); ieee80211_set_disassoc(sdata, 0, 0, false, NULL); @@ -2822,15 +2825,15 @@ static void ieee80211_get_rates(struct ieee80211_supported_band *sband, *have_higher_than_11mbit = true; /* - * BSS_MEMBERSHIP_SELECTOR_HT_PHY is defined in 802.11n-2009 - * 7.3.2.2 as a magic value instead of a rate. Hence, skip it. + * Skip HT and VHT BSS membership selectors since they're not + * rates. * - * Note: Even through the membership selector and the basic + * Note: Even though the membership selector and the basic * rate flag share the same bit, they are not exactly * the same. */ - if (!!(supp_rates[i] & 0x80) && - (supp_rates[i] & 0x7f) == BSS_MEMBERSHIP_SELECTOR_HT_PHY) + if (supp_rates[i] == (0x80 | BSS_MEMBERSHIP_SELECTOR_HT_PHY) || + supp_rates[i] == (0x80 | BSS_MEMBERSHIP_SELECTOR_VHT_PHY)) continue; for (j = 0; j < sband->n_bitrates; j++) { @@ -3430,6 +3433,30 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata, } } + if (bss_conf->cqm_rssi_low && + ifmgd->count_beacon_signal >= IEEE80211_SIGNAL_AVE_MIN_COUNT) { + int sig = -ewma_beacon_signal_read(&ifmgd->ave_beacon_signal); + int last_event = ifmgd->last_cqm_event_signal; + int low = bss_conf->cqm_rssi_low; + int high = bss_conf->cqm_rssi_high; + + if (sig < low && + (last_event == 0 || last_event >= low)) { + ifmgd->last_cqm_event_signal = sig; + ieee80211_cqm_rssi_notify( + &sdata->vif, + NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW, + sig, GFP_KERNEL); + } else if (sig > high && + (last_event == 0 || last_event <= high)) { + ifmgd->last_cqm_event_signal = sig; + ieee80211_cqm_rssi_notify( + &sdata->vif, + NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH, + sig, GFP_KERNEL); + } + } + if (ifmgd->flags & IEEE80211_STA_CONNECTION_POLL) { mlme_dbg_ratelimited(sdata, "cancelling AP probe due to a received beacon\n"); diff --git a/net/mac80211/rate.c b/net/mac80211/rate.c index 206698bc93f4..9d7a1cd949fb 100644 --- a/net/mac80211/rate.c +++ b/net/mac80211/rate.c @@ -2,6 +2,7 @@ * Copyright 2002-2005, Instant802 Networks, Inc. * Copyright 2005-2006, Devicescape Software, Inc. * Copyright (c) 2006 Jiri Benc <jbenc@suse.cz> + * Copyright 2017 Intel Deutschland GmbH * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -173,9 +174,11 @@ ieee80211_rate_control_ops_get(const char *name) /* try default if specific alg requested but not found */ ops = ieee80211_try_rate_control_ops_get(ieee80211_default_rc_algo); - /* try built-in one if specific alg requested but not found */ - if (!ops && strlen(CONFIG_MAC80211_RC_DEFAULT)) + /* Note: check for > 0 is intentional to avoid clang warning */ + if (!ops && (strlen(CONFIG_MAC80211_RC_DEFAULT) > 0)) + /* try built-in one if specific alg requested but not found */ ops = ieee80211_try_rate_control_ops_get(CONFIG_MAC80211_RC_DEFAULT); + kernel_param_unlock(THIS_MODULE); return ops; @@ -208,7 +211,6 @@ static struct rate_control_ref *rate_control_alloc(const char *name, ref = kmalloc(sizeof(struct rate_control_ref), GFP_KERNEL); if (!ref) return NULL; - ref->local = local; ref->ops = ieee80211_rate_control_ops_get(name); if (!ref->ops) goto free; @@ -229,18 +231,45 @@ free: return NULL; } -static void rate_control_free(struct rate_control_ref *ctrl_ref) +static void rate_control_free(struct ieee80211_local *local, + struct rate_control_ref *ctrl_ref) { ctrl_ref->ops->free(ctrl_ref->priv); #ifdef CONFIG_MAC80211_DEBUGFS - debugfs_remove_recursive(ctrl_ref->local->debugfs.rcdir); - ctrl_ref->local->debugfs.rcdir = NULL; + debugfs_remove_recursive(local->debugfs.rcdir); + local->debugfs.rcdir = NULL; #endif kfree(ctrl_ref); } +void ieee80211_check_rate_mask(struct ieee80211_sub_if_data *sdata) +{ + struct ieee80211_local *local = sdata->local; + struct ieee80211_supported_band *sband; + u32 user_mask, basic_rates = sdata->vif.bss_conf.basic_rates; + enum nl80211_band band; + + if (WARN_ON(!sdata->vif.bss_conf.chandef.chan)) + return; + + if (WARN_ON_ONCE(!basic_rates)) + return; + + band = sdata->vif.bss_conf.chandef.chan->band; + user_mask = sdata->rc_rateidx_mask[band]; + sband = local->hw.wiphy->bands[band]; + + if (user_mask & basic_rates) + return; + + sdata_dbg(sdata, + "no overlap between basic rates (0x%x) and user mask (0x%x on band %d) - clearing the latter", + basic_rates, user_mask, band); + sdata->rc_rateidx_mask[band] = (1 << sband->n_bitrates) - 1; +} + static bool rc_no_data_or_no_ack_use_min(struct ieee80211_tx_rate_control *txrc) { struct sk_buff *skb = txrc->skb; @@ -936,6 +965,6 @@ void rate_control_deinitialize(struct ieee80211_local *local) return; local->rate_ctrl = NULL; - rate_control_free(ref); + rate_control_free(local, ref); } diff --git a/net/mac80211/rate.h b/net/mac80211/rate.h index 8d3260785b94..f7825ef5f871 100644 --- a/net/mac80211/rate.h +++ b/net/mac80211/rate.h @@ -20,7 +20,6 @@ #include "driver-ops.h" struct rate_control_ref { - struct ieee80211_local *local; const struct rate_control_ops *ops; void *priv; }; @@ -111,6 +110,8 @@ static inline void rate_control_remove_sta_debugfs(struct sta_info *sta) #endif } +void ieee80211_check_rate_mask(struct ieee80211_sub_if_data *sdata); + /* Get a reference to the rate control algorithm. If `name' is NULL, get the * first available algorithm. */ int ieee80211_init_rate_ctrl_alg(struct ieee80211_local *local, diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index e48724a6725e..638dc63a51bf 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -95,24 +95,13 @@ static u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len, * This function cleans up the SKB, i.e. it removes all the stuff * only useful for monitoring. */ -static struct sk_buff *remove_monitor_info(struct ieee80211_local *local, - struct sk_buff *skb, - unsigned int rtap_vendor_space) +static void remove_monitor_info(struct sk_buff *skb, + unsigned int present_fcs_len, + unsigned int rtap_vendor_space) { - if (ieee80211_hw_check(&local->hw, RX_INCLUDES_FCS)) { - if (likely(skb->len > FCS_LEN)) - __pskb_trim(skb, skb->len - FCS_LEN); - else { - /* driver bug */ - WARN_ON(1); - dev_kfree_skb(skb); - return NULL; - } - } - + if (present_fcs_len) + __pskb_trim(skb, skb->len - present_fcs_len); __pskb_pull(skb, rtap_vendor_space); - - return skb; } static inline bool should_drop_frame(struct sk_buff *skb, int present_fcs_len, @@ -534,8 +523,15 @@ ieee80211_rx_monitor(struct ieee80211_local *local, struct sk_buff *origskb, * the SKB because it has a bad FCS/PLCP checksum. */ - if (ieee80211_hw_check(&local->hw, RX_INCLUDES_FCS)) + if (ieee80211_hw_check(&local->hw, RX_INCLUDES_FCS)) { + if (unlikely(origskb->len <= FCS_LEN)) { + /* driver bug */ + WARN_ON(1); + dev_kfree_skb(origskb); + return NULL; + } present_fcs_len = FCS_LEN; + } /* ensure hdr->frame_control and vendor radiotap data are in skb head */ if (!pskb_may_pull(origskb, 2 + rtap_vendor_space)) { @@ -550,7 +546,9 @@ ieee80211_rx_monitor(struct ieee80211_local *local, struct sk_buff *origskb, return NULL; } - return remove_monitor_info(local, origskb, rtap_vendor_space); + remove_monitor_info(origskb, present_fcs_len, + rtap_vendor_space); + return origskb; } /* room for the radiotap header based on driver features */ @@ -580,9 +578,8 @@ ieee80211_rx_monitor(struct ieee80211_local *local, struct sk_buff *origskb, * and FCS from the original. */ skb = skb_copy_expand(origskb, needed_headroom, 0, GFP_ATOMIC); - - origskb = remove_monitor_info(local, origskb, - rtap_vendor_space); + remove_monitor_info(origskb, present_fcs_len, + rtap_vendor_space); if (!skb) return origskb; @@ -596,16 +593,7 @@ ieee80211_rx_monitor(struct ieee80211_local *local, struct sk_buff *origskb, skb->pkt_type = PACKET_OTHERHOST; skb->protocol = htons(ETH_P_802_2); - list_for_each_entry_rcu(sdata, &local->interfaces, list) { - if (sdata->vif.type != NL80211_IFTYPE_MONITOR) - continue; - - if (sdata->u.mntr.flags & MONITOR_FLAG_COOK_FRAMES) - continue; - - if (!ieee80211_sdata_running(sdata)) - continue; - + list_for_each_entry_rcu(sdata, &local->mon_list, u.mntr.list) { if (prev_dev) { skb2 = skb_clone(skb, GFP_ATOMIC); if (skb2) { diff --git a/net/mac80211/spectmgmt.c b/net/mac80211/spectmgmt.c index 97f4c9d6b54c..0782e486fe89 100644 --- a/net/mac80211/spectmgmt.c +++ b/net/mac80211/spectmgmt.c @@ -132,9 +132,9 @@ int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata, struct ieee80211_vht_operation vht_oper = { .chan_width = wide_bw_chansw_ie->new_channel_width, - .center_freq_seg1_idx = + .center_freq_seg0_idx = wide_bw_chansw_ie->new_center_freq_seg0, - .center_freq_seg2_idx = + .center_freq_seg1_idx = wide_bw_chansw_ie->new_center_freq_seg1, /* .basic_mcs_set doesn't matter */ }; diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c index 3323a2fb289b..81ec1f72518d 100644 --- a/net/mac80211/sta_info.c +++ b/net/mac80211/sta_info.c @@ -1960,14 +1960,17 @@ static void sta_stats_decode_rate(struct ieee80211_local *local, u16 rate, rinfo->bw = (rate & STA_STATS_RATE_BW_MASK) >> STA_STATS_RATE_BW_SH |