From 79af1f866193de29e65a4dba7d0dab14b0c0ff93 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Thu, 22 Jun 2017 12:20:29 +0200 Subject: mac80211: avoid allocating TXQs that won't be used For AP_VLAN and monitor interfaces we'll never use the TXQs we allocated, so avoid doing so. Signed-off-by: Johannes Berg --- net/mac80211/iface.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'net/mac80211') diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c index f75029abf728..2619daa29961 100644 --- a/net/mac80211/iface.c +++ b/net/mac80211/iface.c @@ -1772,7 +1772,9 @@ int ieee80211_if_add(struct ieee80211_local *local, const char *name, sizeof(void *)); int txq_size = 0; - if (local->ops->wake_tx_queue) + if (local->ops->wake_tx_queue && + type != NL80211_IFTYPE_AP_VLAN && + type != NL80211_IFTYPE_MONITOR) txq_size += sizeof(struct txq_info) + local->hw.txq_data_size; -- cgit v1.2.3 From a7f26d8050c4f172d2dc523aabf45c5cbd9558ac Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Sat, 5 Aug 2017 11:44:32 +0300 Subject: mac80211: simplify and clarify IE splitting There's no need to split off IEs from the ones obtained from userspace, if they were already split off, so for example IEs that went before HT don't have to be listed again to go before VHT. Simplify the code here so it's clearer. While at it, also clarify the comments regarding the DMG (60 GHz) elements. Signed-off-by: Johannes Berg --- net/mac80211/mlme.c | 19 +++++++------------ net/mac80211/util.c | 21 +++++++++------------ 2 files changed, 16 insertions(+), 24 deletions(-) (limited to 'net/mac80211') diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index 3b8e2709d8de..ee5ca1bc5a20 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -780,11 +780,12 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata) WLAN_EID_SUPPORTED_REGULATORY_CLASSES, WLAN_EID_HT_CAPABILITY, WLAN_EID_BSS_COEX_2040, + /* luckily this is almost always there */ WLAN_EID_EXT_CAPABILITY, WLAN_EID_QOS_TRAFFIC_CAPA, WLAN_EID_TIM_BCAST_REQ, WLAN_EID_INTERWORKING, - /* 60GHz doesn't happen right now */ + /* 60 GHz (Multi-band, DMG, MMS) can't happen */ WLAN_EID_VHT_CAPABILITY, WLAN_EID_OPMODE_NOTIF, }; @@ -811,22 +812,16 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata) /* if present, add any custom IEs that go before VHT */ if (assoc_data->ie_len) { static const u8 before_vht[] = { - WLAN_EID_SSID, - WLAN_EID_SUPP_RATES, - WLAN_EID_EXT_SUPP_RATES, - WLAN_EID_PWR_CAPABILITY, - WLAN_EID_SUPPORTED_CHANNELS, - WLAN_EID_RSN, - WLAN_EID_QOS_CAPA, - WLAN_EID_RRM_ENABLED_CAPABILITIES, - WLAN_EID_MOBILITY_DOMAIN, - WLAN_EID_SUPPORTED_REGULATORY_CLASSES, - WLAN_EID_HT_CAPABILITY, + /* + * no need to list the ones split off before HT + * or generated here + */ WLAN_EID_BSS_COEX_2040, WLAN_EID_EXT_CAPABILITY, WLAN_EID_QOS_TRAFFIC_CAPA, WLAN_EID_TIM_BCAST_REQ, WLAN_EID_INTERWORKING, + /* 60 GHz (Multi-band, DMG, MMS) can't happen */ }; /* RIC already taken above, so no need to handle here anymore */ diff --git a/net/mac80211/util.c b/net/mac80211/util.c index 6aef6793d052..bfecc3e86318 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -1392,10 +1392,10 @@ static int ieee80211_build_preq_ies_band(struct ieee80211_local *local, /* insert custom IEs that go before HT */ if (ie && ie_len) { static const u8 before_ht[] = { - WLAN_EID_SSID, - WLAN_EID_SUPP_RATES, - WLAN_EID_REQUEST, - WLAN_EID_EXT_SUPP_RATES, + /* + * no need to list the ones split off already + * (or generated here) + */ WLAN_EID_DS_PARAMS, WLAN_EID_SUPPORTED_REGULATORY_CLASSES, }; @@ -1424,20 +1424,17 @@ static int ieee80211_build_preq_ies_band(struct ieee80211_local *local, /* insert custom IEs that go before VHT */ if (ie && ie_len) { static const u8 before_vht[] = { - WLAN_EID_SSID, - WLAN_EID_SUPP_RATES, - WLAN_EID_REQUEST, - WLAN_EID_EXT_SUPP_RATES, - WLAN_EID_DS_PARAMS, - WLAN_EID_SUPPORTED_REGULATORY_CLASSES, - WLAN_EID_HT_CAPABILITY, + /* + * no need to list the ones split off already + * (or generated here) + */ WLAN_EID_BSS_COEX_2040, WLAN_EID_EXT_CAPABILITY, WLAN_EID_SSID_LIST, WLAN_EID_CHANNEL_USAGE, WLAN_EID_INTERWORKING, WLAN_EID_MESH_ID, - /* 60 GHz can't happen here right now */ + /* 60 GHz (Multi-band, DMG, MMS) can't happen */ }; noffset = ieee80211_ie_split(ie, ie_len, before_vht, ARRAY_SIZE(before_vht), -- cgit v1.2.3 From 40b0bd24973487272167a09db040a70c053bedbe Mon Sep 17 00:00:00 2001 From: Roee Zamir Date: Sun, 6 Aug 2017 11:38:23 +0300 Subject: mac80211: oce: enable receiving of bcast probe resp One of OCE's optimizations is acception of broadcast probe responses. Accept broadcast probe responses but don't set NL80211_EXT_FEATURE_ACCEPT_BCAST_PROBE_RESP. Because a device's firmware may filter out the broadcast probe resp - drivers should set this flag. Signed-off-by: Roee Zamir Signed-off-by: Luca Coelho [johannes: make accepting broadcast conditional on the nl80211 scan flag that was added for that specific purpose] Signed-off-by: Johannes Berg --- net/mac80211/scan.c | 37 ++++++++++++++++++++++++++++--------- 1 file changed, 28 insertions(+), 9 deletions(-) (limited to 'net/mac80211') diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c index 47d2ed570470..ef2becaade50 100644 --- a/net/mac80211/scan.c +++ b/net/mac80211/scan.c @@ -7,7 +7,7 @@ * Copyright 2006-2007 Jiri Benc * Copyright 2007, Michael Wu * Copyright 2013-2015 Intel Mobile Communications GmbH - * Copyright 2016 Intel Deutschland GmbH + * Copyright 2016-2017 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 @@ -183,6 +183,20 @@ ieee80211_bss_info_update(struct ieee80211_local *local, return bss; } +static bool ieee80211_scan_accept_presp(struct ieee80211_sub_if_data *sdata, + u32 scan_flags, const u8 *da) +{ + if (!sdata) + return false; + /* accept broadcast for OCE */ + if (scan_flags & NL80211_SCAN_FLAG_ACCEPT_BCAST_PROBE_RESP && + is_broadcast_ether_addr(da)) + return true; + if (scan_flags & NL80211_SCAN_FLAG_RANDOM_ADDR) + return true; + return ether_addr_equal(da, sdata->vif.addr); +} + void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb) { struct ieee80211_rx_status *rx_status = IEEE80211_SKB_RXCB(skb); @@ -208,19 +222,24 @@ void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb) if (ieee80211_is_probe_resp(mgmt->frame_control)) { struct cfg80211_scan_request *scan_req; struct cfg80211_sched_scan_request *sched_scan_req; + u32 scan_req_flags = 0, sched_scan_req_flags = 0; scan_req = rcu_dereference(local->scan_req); sched_scan_req = rcu_dereference(local->sched_scan_req); - /* ignore ProbeResp to foreign address unless scanning - * with randomised address + if (scan_req) + scan_req_flags = scan_req->flags; + + if (sched_scan_req) + sched_scan_req_flags = sched_scan_req->flags; + + /* ignore ProbeResp to foreign address or non-bcast (OCE) + * unless scanning with randomised address */ - if (!(sdata1 && - (ether_addr_equal(mgmt->da, sdata1->vif.addr) || - scan_req->flags & NL80211_SCAN_FLAG_RANDOM_ADDR)) && - !(sdata2 && - (ether_addr_equal(mgmt->da, sdata2->vif.addr) || - sched_scan_req->flags & NL80211_SCAN_FLAG_RANDOM_ADDR))) + if (!ieee80211_scan_accept_presp(sdata1, scan_req_flags, + mgmt->da) && + !ieee80211_scan_accept_presp(sdata2, sched_scan_req_flags, + mgmt->da)) return; elements = mgmt->u.probe_resp.variable; -- cgit v1.2.3 From 1272c5d89b597995cb10db87dd4a1adc91d36006 Mon Sep 17 00:00:00 2001 From: Luca Coelho Date: Fri, 18 Aug 2017 15:33:56 +0300 Subject: mac80211: add documentation to ieee80211_rx_ba_offl() Add documentation to ieee80211_rx_ba_offl() function and, while at it, rename the bit argument to tid, for consistency. Signed-off-by: Luca Coelho Signed-off-by: Johannes Berg --- net/mac80211/agg-rx.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'net/mac80211') diff --git a/net/mac80211/agg-rx.c b/net/mac80211/agg-rx.c index 2849a1fc41c5..88cc1ae935ea 100644 --- a/net/mac80211/agg-rx.c +++ b/net/mac80211/agg-rx.c @@ -459,7 +459,7 @@ void ieee80211_process_addba_request(struct ieee80211_local *local, } void ieee80211_manage_rx_ba_offl(struct ieee80211_vif *vif, - const u8 *addr, unsigned int bit) + const u8 *addr, unsigned int tid) { struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); struct ieee80211_local *local = sdata->local; @@ -470,7 +470,7 @@ void ieee80211_manage_rx_ba_offl(struct ieee80211_vif *vif, if (!sta) goto unlock; - set_bit(bit, sta->ampdu_mlme.tid_rx_manage_offl); + set_bit(tid, sta->ampdu_mlme.tid_rx_manage_offl); ieee80211_queue_work(&local->hw, &sta->ampdu_mlme.work); unlock: rcu_read_unlock(); -- cgit v1.2.3 From 1281103770e909e064edbb22a1115a0c14eca081 Mon Sep 17 00:00:00 2001 From: Ilan peer Date: Wed, 6 Sep 2017 17:18:33 +0300 Subject: mac80211: Simplify locking in ieee80211_sta_tear_down_BA_sessions() Simplify the locking in ieee80211_sta_tear_down_BA_sessions() and lock sta->ampdu_mlme.mtx over the entire function instead of locking/unlocking it for each TID etc. Signed-off-by: Ilan Peer Signed-off-by: Johannes Berg --- net/mac80211/ht.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) (limited to 'net/mac80211') diff --git a/net/mac80211/ht.c b/net/mac80211/ht.c index d6d0b4201e40..41f5e48f8021 100644 --- a/net/mac80211/ht.c +++ b/net/mac80211/ht.c @@ -290,13 +290,15 @@ void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta, { int i; + mutex_lock(&sta->ampdu_mlme.mtx); for (i = 0; i < IEEE80211_NUM_TIDS; i++) { - __ieee80211_stop_tx_ba_session(sta, i, reason); - __ieee80211_stop_rx_ba_session(sta, i, WLAN_BACK_RECIPIENT, - WLAN_REASON_QSTA_LEAVE_QBSS, - reason != AGG_STOP_DESTROY_STA && - reason != AGG_STOP_PEER_REQUEST); + ___ieee80211_stop_tx_ba_session(sta, i, reason); + ___ieee80211_stop_rx_ba_session(sta, i, WLAN_BACK_RECIPIENT, + WLAN_REASON_QSTA_LEAVE_QBSS, + reason != AGG_STOP_DESTROY_STA && + reason != AGG_STOP_PEER_REQUEST); } + mutex_unlock(&sta->ampdu_mlme.mtx); /* stopping might queue the work again - so cancel only afterwards */ cancel_work_sync(&sta->ampdu_mlme.work); -- cgit v1.2.3 From 4c121fd690d9c465e4cb09b7859adfdd6a0aee1d Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Fri, 8 Sep 2017 11:54:46 +0200 Subject: mac80211: use offsetofend() This was created using the following spatch: @find@ type S; expression M, M2; position p; @@ offsetof(S, M) + sizeof(M2)@p @script:python@ m << find.M; m2 << find.M2; @@ if not m2.endswith('-> ' + m): cocci.include_match(False) @change@ type find.S; expression find.M, find.M2; position find.p; @@ -offsetof(S, M) + sizeof(M2)@p +offsetofend(S, M) Signed-off-by: Johannes Berg --- net/mac80211/mesh.c | 3 +-- net/mac80211/mesh_hwmp.c | 8 ++++---- net/mac80211/mesh_plink.c | 3 +-- net/mac80211/util.c | 4 ++-- 4 files changed, 8 insertions(+), 10 deletions(-) (limited to 'net/mac80211') diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c index a550c707cd8a..7a76c4a6df30 100644 --- a/net/mac80211/mesh.c +++ b/net/mac80211/mesh.c @@ -675,8 +675,7 @@ ieee80211_mesh_build_beacon(struct ieee80211_if_mesh *ifmsh) enum nl80211_band band; u8 *pos; struct ieee80211_sub_if_data *sdata; - int hdr_len = offsetof(struct ieee80211_mgmt, u.beacon) + - sizeof(mgmt->u.beacon); + int hdr_len = offsetofend(struct ieee80211_mgmt, u.beacon); sdata = container_of(ifmsh, struct ieee80211_sub_if_data, u.mesh); rcu_read_lock(); diff --git a/net/mac80211/mesh_hwmp.c b/net/mac80211/mesh_hwmp.c index d8bbd0d2225a..146ec6c0f12f 100644 --- a/net/mac80211/mesh_hwmp.c +++ b/net/mac80211/mesh_hwmp.c @@ -111,8 +111,8 @@ static int mesh_path_sel_frame_tx(enum mpath_frame_type action, u8 flags, struct sk_buff *skb; struct ieee80211_mgmt *mgmt; u8 *pos, ie_len; - int hdr_len = offsetof(struct ieee80211_mgmt, u.action.u.mesh_action) + - sizeof(mgmt->u.action.u.mesh_action); + int hdr_len = offsetofend(struct ieee80211_mgmt, + u.action.u.mesh_action); skb = dev_alloc_skb(local->tx_headroom + hdr_len + @@ -242,8 +242,8 @@ int mesh_path_error_tx(struct ieee80211_sub_if_data *sdata, struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; struct ieee80211_mgmt *mgmt; u8 *pos, ie_len; - int hdr_len = offsetof(struct ieee80211_mgmt, u.action.u.mesh_action) + - sizeof(mgmt->u.action.u.mesh_action); + int hdr_len = offsetofend(struct ieee80211_mgmt, + u.action.u.mesh_action); if (time_before(jiffies, ifmsh->next_perr)) return -EAGAIN; diff --git a/net/mac80211/mesh_plink.c b/net/mac80211/mesh_plink.c index f69c6c38ca43..dc8e10f87207 100644 --- a/net/mac80211/mesh_plink.c +++ b/net/mac80211/mesh_plink.c @@ -220,8 +220,7 @@ static int mesh_plink_frame_tx(struct ieee80211_sub_if_data *sdata, bool include_plid = false; u16 peering_proto = 0; u8 *pos, ie_len = 4; - int hdr_len = offsetof(struct ieee80211_mgmt, u.action.u.self_prot) + - sizeof(mgmt->u.action.u.self_prot); + int hdr_len = offsetofend(struct ieee80211_mgmt, u.action.u.self_prot); int err = -ENOMEM; skb = dev_alloc_skb(local->tx_headroom + diff --git a/net/mac80211/util.c b/net/mac80211/util.c index bfecc3e86318..d57e5f6bd8b6 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -2977,8 +2977,8 @@ int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata, struct ieee80211_mgmt *mgmt; struct ieee80211_local *local = sdata->local; int freq; - int hdr_len = offsetof(struct ieee80211_mgmt, u.action.u.chan_switch) + - sizeof(mgmt->u.action.u.chan_switch); + int hdr_len = offsetofend(struct ieee80211_mgmt, + u.action.u.chan_switch); u8 *pos; if (sdata->vif.type != NL80211_IFTYPE_ADHOC && -- cgit v1.2.3 From d405fd8cc807c045b23bc2df4a5ab6b85df614f3 Mon Sep 17 00:00:00 2001 From: Gregory Greenman Date: Sat, 5 Aug 2017 11:44:36 +0300 Subject: mac80211: recalculate some sta parameters after insertion Sometimes a station is added already in ASSOC state. For example, in AP mode, when a client station didn't get assoc resp and sends an assoc req again. If a station is inserted when its state is ASSOC or higher, the min chandef and allow_p2p_go_ps should be recalculated again after the insertion. Before this patch the recalculation happened only in sta_info_move_state which occurs before the insertion of the sta and thus even though it calls ieee80211_recalc_min_chandef/_p2p_go_ps_allowed functions, since sdata->local->sta_list is still empty at this point, it doesn't do anything. Signed-off-by: Gregory Greenman Signed-off-by: Luca Coelho Signed-off-by: Johannes Berg --- net/mac80211/sta_info.c | 57 +++++++++++++++++++++++++++---------------------- 1 file changed, 32 insertions(+), 25 deletions(-) (limited to 'net/mac80211') diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c index 69615016d5bf..ffcd25c4908c 100644 --- a/net/mac80211/sta_info.c +++ b/net/mac80211/sta_info.c @@ -515,6 +515,31 @@ static int sta_info_insert_drv_state(struct ieee80211_local *local, return err; } +static void +ieee80211_recalc_p2p_go_ps_allowed(struct ieee80211_sub_if_data *sdata) +{ + struct ieee80211_local *local = sdata->local; + bool allow_p2p_go_ps = sdata->vif.p2p; + struct sta_info *sta; + + rcu_read_lock(); + list_for_each_entry_rcu(sta, &local->sta_list, list) { + if (sdata != sta->sdata || + !test_sta_flag(sta, WLAN_STA_ASSOC)) + continue; + if (!sta->sta.support_p2p_ps) { + allow_p2p_go_ps = false; + break; + } + } + rcu_read_unlock(); + + if (allow_p2p_go_ps != sdata->vif.bss_conf.allow_p2p_go_ps) { + sdata->vif.bss_conf.allow_p2p_go_ps = allow_p2p_go_ps; + ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_P2P_PS); + } +} + /* * should be called with sta_mtx locked * this function replaces the mutex lock @@ -561,6 +586,13 @@ static int sta_info_insert_finish(struct sta_info *sta) __acquires(RCU) goto out_remove; set_sta_flag(sta, WLAN_STA_INSERTED); + + if (sta->sta_state >= IEEE80211_STA_ASSOC) { + ieee80211_recalc_min_chandef(sta->sdata); + if (!sta->sta.support_p2p_ps) + ieee80211_recalc_p2p_go_ps_allowed(sta->sdata); + } + /* accept BA sessions now */ clear_sta_flag(sta, WLAN_STA_BLOCK_BA); @@ -1788,31 +1820,6 @@ void ieee80211_sta_set_buffered(struct ieee80211_sta *pubsta, } EXPORT_SYMBOL(ieee80211_sta_set_buffered); -static void -ieee80211_recalc_p2p_go_ps_allowed(struct ieee80211_sub_if_data *sdata) -{ - struct ieee80211_local *local = sdata->local; - bool allow_p2p_go_ps = sdata->vif.p2p; - struct sta_info *sta; - - rcu_read_lock(); - list_for_each_entry_rcu(sta, &local->sta_list, list) { - if (sdata != sta->sdata || - !test_sta_flag(sta, WLAN_STA_ASSOC)) - continue; - if (!sta->sta.support_p2p_ps) { - allow_p2p_go_ps = false; - break; - } - } - rcu_read_unlock(); - - if (allow_p2p_go_ps != sdata->vif.bss_conf.allow_p2p_go_ps) { - sdata->vif.bss_conf.allow_p2p_go_ps = allow_p2p_go_ps; - ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_P2P_PS); - } -} - int sta_info_move_state(struct sta_info *sta, enum ieee80211_sta_state new_state) { -- cgit v1.2.3 From 504871e602d9a9ea2321d47ca506887417f54e75 Mon Sep 17 00:00:00 2001 From: Manikanta Pubbisetty Date: Tue, 26 Sep 2017 00:39:15 +0530 Subject: mac80211: fix bandwidth computation for TDLS peers Section 11.23.1 of 80211-2016 specification allows TDLS peers to operate on wider bandwidths though they are connected to a BSS which do not support wider bandwidth operations, provided both the peers advertise wider bandwidth capabilities. The existing logic considers the minimum of station's and AP's capability for bandwidth computation. The same logic applies for TDLS peers as well, this restricts operating on wider bandwidths over a TDLS link when the peers are connected to legacy APs. As an example, if 80Mhz VHT capable peers are connected to a 20Mhz 5 GHz AP, then as per the existing logic TDLS operation will be restricted to 20Mhz. Address this problem by not considering BSS capability in bandwidth computation if the participating TDLS peers have wider bandwidth capability. Signed-off-by: Manikanta Pubbisetty [lots of wording/typo fixes] Signed-off-by: Johannes Berg --- net/mac80211/vht.c | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'net/mac80211') diff --git a/net/mac80211/vht.c b/net/mac80211/vht.c index 19ec2189d3ac..b9276ac849fa 100644 --- a/net/mac80211/vht.c +++ b/net/mac80211/vht.c @@ -386,6 +386,16 @@ enum ieee80211_sta_rx_bandwidth ieee80211_sta_cur_vht_bw(struct sta_info *sta) bw = ieee80211_sta_cap_rx_bw(sta); bw = min(bw, sta->cur_max_bandwidth); + + /* Don't consider AP's bandwidth for TDLS peers, section 11.23.1 of + * IEEE80211-2016 specification makes higher bandwidth operation + * possible on the TDLS link if the peers have wider bandwidth + * capability. + */ + if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && + test_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW)) + return bw; + bw = min(bw, ieee80211_chan_width_to_rx_bw(bss_width)); return bw; -- cgit v1.2.3 From 8f797c288e3a788e9578dd4db08b624a6d4b6a9b Mon Sep 17 00:00:00 2001 From: Stanislaw Gruszka Date: Tue, 26 Sep 2017 13:48:05 +0200 Subject: mac80211: fix STA_SLOW_THRESHOLD htmldocs failure Patch fixes htmldocs build problem: Error(.//net/mac80211/sta_info.h:416): cannot understand prototype: 'STA_SLOW_THRESHOLD 6000 ' Signed-off-by: Stanislaw Gruszka Signed-off-by: Johannes Berg --- net/mac80211/sta_info.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'net/mac80211') diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h index 3acbdfa9f649..a35c964f6217 100644 --- a/net/mac80211/sta_info.h +++ b/net/mac80211/sta_info.h @@ -398,7 +398,7 @@ struct ieee80211_sta_rx_stats { u64 msdu[IEEE80211_NUM_TIDS + 1]; }; -/** +/* * The bandwidth threshold below which the per-station CoDel parameters will be * scaled to be more lenient (to prevent starvation of slow stations). This * value will be scaled by the number of active stations when it is being -- cgit v1.2.3 From 4c02d62fa37a05254a87575c7d430819f77bd6c9 Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Thu, 5 Oct 2017 10:39:10 -0700 Subject: net/mac80211/mesh_plink: Convert timers to use timer_setup() In preparation for unconditionally passing the struct timer_list pointer to all timer callbacks, switch to using the new timer_setup() and from_timer() to pass the timer pointer explicitly. This requires adding a pointer back to the sta_info since container_of() can't resolve the sta_info. Cc: Johannes Berg Cc: "David S. Miller" Cc: linux-wireless@vger.kernel.org Cc: netdev@vger.kernel.org Cc: Thomas Gleixner Signed-off-by: Kees Cook Signed-off-by: Johannes Berg --- net/mac80211/mesh.h | 1 + net/mac80211/mesh_plink.c | 10 ++++------ net/mac80211/sta_info.c | 4 +++- net/mac80211/sta_info.h | 2 ++ 4 files changed, 10 insertions(+), 7 deletions(-) (limited to 'net/mac80211') diff --git a/net/mac80211/mesh.h b/net/mac80211/mesh.h index 7e5f271e3c30..465b7853edc0 100644 --- a/net/mac80211/mesh.h +++ b/net/mac80211/mesh.h @@ -275,6 +275,7 @@ void mesh_neighbour_update(struct ieee80211_sub_if_data *sdata, u8 *hw_addr, struct ieee802_11_elems *ie); bool mesh_peer_accepts_plinks(struct ieee802_11_elems *ie); u32 mesh_accept_plinks_update(struct ieee80211_sub_if_data *sdata); +void mesh_plink_timer(struct timer_list *t); void mesh_plink_broken(struct sta_info *sta); u32 mesh_plink_deactivate(struct sta_info *sta); u32 mesh_plink_open(struct sta_info *sta); diff --git a/net/mac80211/mesh_plink.c b/net/mac80211/mesh_plink.c index dc8e10f87207..e2d00cce3c17 100644 --- a/net/mac80211/mesh_plink.c +++ b/net/mac80211/mesh_plink.c @@ -603,8 +603,9 @@ out: ieee80211_mbss_info_change_notify(sdata, changed); } -static void mesh_plink_timer(unsigned long data) +void mesh_plink_timer(struct timer_list *t) { + struct mesh_sta *mesh = from_timer(mesh, t, plink_timer); struct sta_info *sta; u16 reason = 0; struct ieee80211_sub_if_data *sdata; @@ -616,7 +617,7 @@ static void mesh_plink_timer(unsigned long data) * del_timer_sync() this timer after having made sure * it cannot be readded (by deleting the plink.) */ - sta = (struct sta_info *) data; + sta = mesh->plink_sta; if (sta->sdata->local->quiescing) return; @@ -696,11 +697,8 @@ static void mesh_plink_timer(unsigned long data) static inline void mesh_plink_timer_set(struct sta_info *sta, u32 timeout) { - sta->mesh->plink_timer.expires = jiffies + msecs_to_jiffies(timeout); - sta->mesh->plink_timer.data = (unsigned long) sta; - sta->mesh->plink_timer.function = mesh_plink_timer; sta->mesh->plink_timeout = timeout; - add_timer(&sta->mesh->plink_timer); + mod_timer(&sta->mesh->plink_timer, jiffies + msecs_to_jiffies(timeout)); } static bool llid_in_use(struct ieee80211_sub_if_data *sdata, diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c index ffcd25c4908c..9673e157bf8f 100644 --- a/net/mac80211/sta_info.c +++ b/net/mac80211/sta_info.c @@ -329,10 +329,12 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata, sta->mesh = kzalloc(sizeof(*sta->mesh), gfp); if (!sta->mesh) goto free; + sta->mesh->plink_sta = sta; spin_lock_init(&sta->mesh->plink_lock); if (ieee80211_vif_is_mesh(&sdata->vif) && !sdata->u.mesh.user_mpm) - init_timer(&sta->mesh->plink_timer); + timer_setup(&sta->mesh->plink_timer, mesh_plink_timer, + 0); sta->mesh->nonpeer_pm = NL80211_MESH_POWER_ACTIVE; } #endif diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h index a35c964f6217..5c54acd10562 100644 --- a/net/mac80211/sta_info.h +++ b/net/mac80211/sta_info.h @@ -344,6 +344,7 @@ DECLARE_EWMA(mesh_fail_avg, 20, 8) * @plink_state: peer link state * @plink_timeout: timeout of peer link * @plink_timer: peer link watch timer + * @plink_sta: peer link watch timer's sta_info * @t_offset: timing offset relative to this host * @t_offset_setpoint: reference timing offset of this sta to be used when * calculating clockdrift @@ -356,6 +357,7 @@ DECLARE_EWMA(mesh_fail_avg, 20, 8) */ struct mesh_sta { struct timer_list plink_timer; + struct sta_info *plink_sta; s64 t_offset; s64 t_offset_setpoint; -- cgit v1.2.3 From 4133da73067af0417c623eb4ad5e85081ccbf4b4 Mon Sep 17 00:00:00 2001 From: Xiang Gao Date: Tue, 10 Oct 2017 22:31:49 -0400 Subject: mac80211: aead api to reduce redundancy Currently, the aes_ccm.c and aes_gcm.c are almost line by line copy of each other. This patch reduce code redundancy by moving the code in these two files to crypto/aead_api.c to make it a higher level aead api. The file aes_ccm.c and aes_gcm.c are removed and all the functions there are now implemented in their headers using the newly added aead api. Signed-off-by: Xiang Gao Signed-off-by: Johannes Berg --- net/mac80211/Makefile | 3 +- net/mac80211/aead_api.c | 115 ++++++++++++++++++++++++++++++++++++++++++++++++ net/mac80211/aead_api.h | 27 ++++++++++++ net/mac80211/aes_ccm.c | 115 ------------------------------------------------ net/mac80211/aes_ccm.h | 42 +++++++++++++----- net/mac80211/aes_gcm.c | 109 --------------------------------------------- net/mac80211/aes_gcm.h | 38 ++++++++++++---- net/mac80211/wpa.c | 4 +- 8 files changed, 206 insertions(+), 247 deletions(-) create mode 100644 net/mac80211/aead_api.c create mode 100644 net/mac80211/aead_api.h delete mode 100644 net/mac80211/aes_ccm.c delete mode 100644 net/mac80211/aes_gcm.c (limited to 'net/mac80211') diff --git a/net/mac80211/Makefile b/net/mac80211/Makefile index 282912245938..80f25ff2f24b 100644 --- a/net/mac80211/Makefile +++ b/net/mac80211/Makefile @@ -6,6 +6,7 @@ mac80211-y := \ driver-ops.o \ sta_info.o \ wep.o \ + aead_api.o \ wpa.o \ scan.o offchannel.o \ ht.o agg-tx.o agg-rx.o \ @@ -15,8 +16,6 @@ mac80211-y := \ rate.o \ michael.o \ tkip.o \ - aes_ccm.o \ - aes_gcm.o \ aes_cmac.o \ aes_gmac.o \ fils_aead.o \ diff --git a/net/mac80211/aead_api.c b/net/mac80211/aead_api.c new file mode 100644 index 000000000000..347f13953b2c --- /dev/null +++ b/net/mac80211/aead_api.c @@ -0,0 +1,115 @@ +/* + * Copyright 2003-2004, Instant802 Networks, Inc. + * Copyright 2005-2006, Devicescape Software, Inc. + * Copyright 2014-2015, Qualcomm Atheros, Inc. + * + * Rewrite: Copyright (C) 2013 Linaro Ltd + * + * 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 + * published by the Free Software Foundation. + */ + +#include +#include +#include +#include +#include + +#include "aead_api.h" + +int aead_encrypt(struct crypto_aead *tfm, u8 *b_0, u8 *aad, size_t aad_len, + u8 *data, size_t data_len, u8 *mic) +{ + size_t mic_len = tfm->authsize; + struct scatterlist sg[3]; + struct aead_request *aead_req; + int reqsize = sizeof(*aead_req) + crypto_aead_reqsize(tfm); + u8 *__aad; + + aead_req = kzalloc(reqsize + aad_len, GFP_ATOMIC); + if (!aead_req) + return -ENOMEM; + + __aad = (u8 *)aead_req + reqsize; + memcpy(__aad, aad, aad_len); + + sg_init_table(sg, 3); + sg_set_buf(&sg[0], __aad, aad_len); + sg_set_buf(&sg[1], data, data_len); + sg_set_buf(&sg[2], mic, mic_len); + + aead_request_set_tfm(aead_req, tfm); + aead_request_set_crypt(aead_req, sg, sg, data_len, b_0); + aead_request_set_ad(aead_req, sg[0].length); + + crypto_aead_encrypt(aead_req); + kzfree(aead_req); + + return 0; +} + +int aead_decrypt(struct crypto_aead *tfm, u8 *b_0, u8 *aad, size_t aad_len, + u8 *data, size_t data_len, u8 *mic) +{ + size_t mic_len = tfm->authsize; + struct scatterlist sg[3]; + struct aead_request *aead_req; + int reqsize = sizeof(*aead_req) + crypto_aead_reqsize(tfm); + u8 *__aad; + int err; + + if (data_len == 0) + return -EINVAL; + + aead_req = kzalloc(reqsize + aad_len, GFP_ATOMIC); + if (!aead_req) + return -ENOMEM; + + __aad = (u8 *)aead_req + reqsize; + memcpy(__aad, aad, aad_len); + + sg_init_table(sg, 3); + sg_set_buf(&sg[0], __aad, aad_len); + sg_set_buf(&sg[1], data, data_len); + sg_set_buf(&sg[2], mic, mic_len); + + aead_request_set_tfm(aead_req, tfm); + aead_request_set_crypt(aead_req, sg, sg, data_len + mic_len, b_0); + aead_request_set_ad(aead_req, sg[0].length); + + err = crypto_aead_decrypt(aead_req); + kzfree(aead_req); + + return err; +} + +struct crypto_aead * +aead_key_setup_encrypt(const char *alg, const u8 key[], + size_t key_len, size_t mic_len) +{ + struct crypto_aead *tfm; + int err; + + tfm = crypto_alloc_aead(alg, 0, CRYPTO_ALG_ASYNC); + if (IS_ERR(tfm)) + return tfm; + + err = crypto_aead_setkey(tfm, key, key_len); + if (err) + goto free_aead; + err = crypto_aead_setauthsize(tfm, mic_len); + if (err) + goto free_aead; + + return tfm; + +free_aead: + crypto_free_aead(tfm); + return ERR_PTR(err); +} + +void aead_key_free(struct crypto_aead *tfm) +{ + crypto_free_aead(tfm); +} diff --git a/net/mac80211/aead_api.h b/net/mac80211/aead_api.h new file mode 100644 index 000000000000..5e39ea843bbf --- /dev/null +++ b/net/mac80211/aead_api.h @@ -0,0 +1,27 @@ +/* + * 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 + * published by the Free Software Foundation. + */ + +#ifndef _AEAD_API_H +#define _AEAD_API_H + +#include +#include + +struct crypto_aead * +aead_key_setup_encrypt(const char *alg, const u8 key[], + size_t key_len, size_t mic_len); + +int aead_encrypt(struct crypto_aead *tfm, u8 *b_0, u8 *aad, + size_t aad_len, u8 *data, + size_t data_len, u8 *mic); + +int aead_decrypt(struct crypto_aead *tfm, u8 *b_0, u8 *aad, + size_t aad_len, u8 *data, + size_t data_len, u8 *mic); + +void aead_key_free(struct crypto_aead *tfm); + +#endif /* _AEAD_API_H */ diff --git a/net/mac80211/aes_ccm.c b/net/mac80211/aes_ccm.c deleted file mode 100644 index a4e0d59a40dd..000000000000 --- a/net/mac80211/aes_ccm.c +++ /dev/null @@ -1,115 +0,0 @@ -/* - * Copyright 2003-2004, Instant802 Networks, Inc. - * Copyright 2005-2006, Devicescape Software, Inc. - * - * Rewrite: Copyright (C) 2013 Linaro Ltd - * - * 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 - * published by the Free Software Foundation. - */ - -#include -#include -#include -#include - -#include -#include "key.h" -#include "aes_ccm.h" - -int ieee80211_aes_ccm_encrypt(struct crypto_aead *tfm, u8 *b_0, u8 *aad, - u8 *data, size_t data_len, u8 *mic, - size_t mic_len) -{ - struct scatterlist sg[3]; - struct aead_request *aead_req; - int reqsize = sizeof(*aead_req) + crypto_aead_reqsize(tfm); - u8 *__aad; - - aead_req = kzalloc(reqsize + CCM_AAD_LEN, GFP_ATOMIC); - if (!aead_req) - return -ENOMEM; - - __aad = (u8 *)aead_req + reqsize; - memcpy(__aad, aad, CCM_AAD_LEN); - - sg_init_table(sg, 3); - sg_set_buf(&sg[0], &__aad[2], be16_to_cpup((__be16 *)__aad)); - sg_set_buf(&sg[1], data, data_len); - sg_set_buf(&sg[2], mic, mic_len); - - aead_request_set_tfm(aead_req, tfm); - aead_request_set_crypt(aead_req, sg, sg, data_len, b_0); - aead_request_set_ad(aead_req, sg[0].length); - - crypto_aead_encrypt(aead_req); - kzfree(aead_req); - - return 0; -} - -int ieee80211_aes_ccm_decrypt(struct crypto_aead *tfm, u8 *b_0, u8 *aad, - u8 *data, size_t data_len, u8 *mic, - size_t mic_len) -{ - struct scatterlist sg[3]; - struct aead_request *aead_req; - int reqsize = sizeof(*aead_req) + crypto_aead_reqsize(tfm); - u8 *__aad; - int err; - - if (data_len == 0) - return -EINVAL; - - aead_req = kzalloc(reqsize + CCM_AAD_LEN, GFP_ATOMIC); - if (!aead_req) - return -ENOMEM; - - __aad = (u8 *)aead_req + reqsize; - memcpy(__aad, aad, CCM_AAD_LEN); - - sg_init_table(sg, 3); - sg_set_buf(&sg[0], &__aad[2], be16_to_cpup((__be16 *)__aad)); - sg_set_buf(&sg[1], data, data_len); - sg_set_buf(&sg[2], mic, mic_len); - - aead_request_set_tfm(aead_req, tfm); - aead_request_set_crypt(aead_req, sg, sg, data_len + mic_len, b_0); - aead_request_set_ad(aead_req, sg[0].length); - - err = crypto_aead_decrypt(aead_req); - kzfree(aead_req); - - return err; -} - -struct crypto_aead *ieee80211_aes_key_setup_encrypt(const u8 key[], - size_t key_len, - size_t mic_len) -{ - struct crypto_aead *tfm; - int err; - - tfm = crypto_alloc_aead("ccm(aes)", 0, CRYPTO_ALG_ASYNC); - if (IS_ERR(tfm)) - return tfm; - - err = crypto_aead_setkey(tfm, key, key_len); - if (err) - goto free_aead; - err = crypto_aead_setauthsize(tfm, mic_len); - if (err) - goto free_aead; - - return tfm; - -free_aead: - crypto_free_aead(tfm); - return ERR_PTR(err); -} - -void ieee80211_aes_key_free(struct crypto_aead *tfm) -{ - crypto_free_aead(tfm); -} diff --git a/net/mac80211/aes_ccm.h b/net/mac80211/aes_ccm.h index fcd3254c5cf0..e9b7ca0bde5b 100644 --- a/net/mac80211/aes_ccm.h +++ b/net/mac80211/aes_ccm.h @@ -10,19 +10,39 @@ #ifndef AES_CCM_H #define AES_CCM_H -#include +#include "aead_api.h" #define CCM_AAD_LEN 32 -struct crypto_aead *ieee80211_aes_key_setup_encrypt(const u8 key[], - size_t key_len, - size_t mic_len); -int ieee80211_aes_ccm_encrypt(struct crypto_aead *tfm, u8 *b_0, u8 *aad, - u8 *data, size_t data_len, u8 *mic, - size_t mic_len); -int ieee80211_aes_ccm_decrypt(struct crypto_aead *tfm, u8 *b_0, u8 *aad, - u8 *data, size_t data_len, u8 *mic, - size_t mic_len); -void ieee80211_aes_key_free(struct crypto_aead *tfm); +static inline struct crypto_aead * +ieee80211_aes_key_setup_encrypt(const u8 key[], size_t key_len, size_t mic_len) +{ + return aead_key_setup_encrypt("ccm(aes)", key, key_len, mic_len); +} + +static inline int +ieee80211_aes_ccm_encrypt(struct crypto_aead *tfm, + u8 *b_0, u8 *aad, u8 *data, + size_t data_len, u8 *mic) +{ + return aead_encrypt(tfm, b_0, aad + 2, + be16_to_cpup((__be16 *)aad), + data, data_len, mic); +} + +static inline int +ieee80211_aes_ccm_decrypt(struct crypto_aead *tfm, + u8 *b_0, u8 *aad, u8 *data, + size_t data_len, u8 *mic) +{ + return aead_decrypt(tfm, b_0, aad + 2, + be16_to_cpup((__be16 *)aad), + data, data_len, mic); +} + +static inline void ieee80211_aes_key_free(struct crypto_aead *tfm) +{ + return aead_key_free(tfm); +} #endif /* AES_CCM_H */ diff --git a/net/mac80211/aes_gcm.c b/net/mac80211/aes_gcm.c deleted file mode 100644 index 8a4397cc1b08..000000000000 --- a/net/mac80211/aes_gcm.c +++ /dev/null @@ -1,109 +0,0 @@ -/* - * Copyright 2014-2015, Qualcomm Atheros, Inc. - * - * 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 - * published by the Free Software Foundation. - */ - -#include -#include -#include -#include - -#include -#include "key.h" -#include "aes_gcm.h" - -int ieee80211_aes_gcm_encrypt(struct crypto_aead *tfm, u8 *j_0, u8 *aad, - u8 *data, size_t data_len, u8 *mic) -{ - struct scatterlist sg[3]; - struct aead_request *aead_req; - int reqsize = sizeof(*aead_req) + crypto_aead_reqsize(tfm); - u8 *__aad; - - aead_req = kzalloc(reqsize + GCM_AAD_LEN, GFP_ATOMIC); - if (!aead_req) - return -ENOMEM; - - __aad = (u8 *)aead_req + reqsize; - memcpy(__aad, aad, GCM_AAD_LEN); - - sg_init_table(sg, 3); - sg_set_buf(&sg[0], &__aad[2], be16_to_cpup((__be16 *)__aad)); - sg_set_buf(&sg[1], data, data_len); - sg_set_buf(&sg[2], mic, IEEE80211_GCMP_MIC_LEN); - - aead_request_set_tfm(aead_req, tfm); - aead_request_set_crypt(aead_req, sg, sg, data_len, j_0); - aead_request_set_ad(aead_req, sg[0].length); - - crypto_aead_encrypt(aead_req); - kzfree(aead_req); - return 0; -} - -int ieee80211_aes_gcm_decrypt(struct crypto_aead *tfm, u8 *j_0, u8 *aad, - u8 *data, size_t data_len, u8 *mic) -{ - struct scatterlist sg[3]; - struct aead_request *aead_req; - int reqsize = sizeof(*aead_req) + crypto_aead_reqsize(tfm); - u8 *__aad; - int err; - - if (data_len == 0) - return -EINVAL; - - aead_req = kzalloc(reqsize + GCM_AAD_LEN, GFP_ATOMIC); - if (!aead_req) - return -ENOMEM; - - __aad = (u8 *)aead_req + reqsize; - memcpy(__aad, aad, GCM_AAD_LEN); - - sg_init_table(sg, 3); - sg_set_buf(&sg[0], &__aad[2], be16_to_cpup((__be16 *)__aad)); - sg_set_buf(&sg[1], data, data_len); - sg_set_buf(&sg[2], mic, IEEE80211_GCMP_MIC_LEN); - - aead_request_set_tfm(aead_req, tfm); - aead_request_set_crypt(aead_req, sg, sg, - data_len + IEEE80211_GCMP_MIC_LEN, j_0); - aead_request_set_ad(aead_req, sg[0].length); - - err = crypto_aead_decrypt(aead_req); - kzfree(aead_req); - - return err; -} - -struct crypto_aead *ieee80211_aes_gcm_key_setup_encrypt(const u8 key[], - size_t key_len) -{ - struct crypto_aead *tfm; - int err; - - tfm = crypto_alloc_aead("gcm(aes)", 0, CRYPTO_ALG_ASYNC); - if (IS_ERR(tfm)) - return tfm; - - err = crypto_aead_setkey(tfm, key, key_len); - if (err) - goto free_aead; - err = crypto_aead_setauthsize(tfm, IEEE80211_GCMP_MIC_LEN); - if (err) - goto free_aead; - - return tfm; - -free_aead: - crypto_free_aead(tfm); - return ERR_PTR(err); -} - -void ieee80211_aes_gcm_key_free(struct crypto_aead *tfm) -{ - crypto_free_aead(tfm); -} diff --git a/net/mac80211/aes_gcm.h b/net/mac80211/aes_gcm.h index 55aed5352494..d2b096033009 100644 --- a/net/mac80211/aes_gcm.h +++ b/net/mac80211/aes_gcm.h @@ -9,16 +9,38 @@ #ifndef AES_GCM_H #define AES_GCM_H -#include +#include "aead_api.h" #define GCM_AAD_LEN 32 -int ieee80211_aes_gcm_encrypt(struct crypto_aead *tfm, u8 *j_0, u8 *aad, - u8 *data, size_t data_len, u8 *mic); -int ieee80211_aes_gcm_decrypt(struct crypto_aead *tfm, u8 *j_0, u8 *aad, - u8 *data, size_t data_len, u8 *mic); -struct crypto_aead *ieee80211_aes_gcm_key_setup_encrypt(const u8 key[], - size_t key_len); -void ieee80211_aes_gcm_key_free(struct crypto_aead *tfm); +static inline int ieee80211_aes_gcm_encrypt(struct crypto_aead *tfm, + u8 *j_0, u8 *aad, u8 *data, + size_t data_len, u8 *mic) +{ + return aead_encrypt(tfm, j_0, aad + 2, + be16_to_cpup((__be16 *)aad), + data, data_len, mic); +} + +static inline int ieee80211_aes_gcm_decrypt(struct crypto_aead *tfm, + u8 *j_0, u8 *aad, u8 *data, + size_t data_len, u8 *mic) +{ + return aead_decrypt(tfm, j_0, aad + 2, + be16_to_cpup((__be16 *)aad), + data, data_len, mic); +} + +static inline struct crypto_aead * +ieee80211_aes_gcm_key_setup_encrypt(const u8 key[], size_t key_len) +{ + return aead_key_setup_encrypt("gcm(aes)", key, + key_len, IEEE80211_GCMP_MIC_LEN); +} + +static inline void ieee80211_aes_gcm_key_free(struct crypto_aead *tfm) +{ + return aead_key_free(tfm); +} #endif /* AES_GCM_H */ diff --git a/net/mac80211/wpa.c b/net/mac80211/wpa.c index 0d722ea98a1b..b58722d9de37 100644 --- a/net/mac80211/wpa.c +++ b/net/mac80211/wpa.c @@ -464,7 +464,7 @@ static int ccmp_encrypt_skb(struct ieee80211_tx_data *tx, struct sk_buff *skb, pos += IEEE80211_CCMP_HDR_LEN; ccmp_special_blocks(skb, pn, b_0, aad); return ieee80211_aes_ccm_encrypt(key->u.ccmp.tfm, b_0, aad, pos, len, - skb_put(skb, mic_len), mic_len); + skb_put(skb, mic_len)); } @@ -543,7 +543,7 @@ ieee80211_crypto_ccmp_decrypt(struct ieee80211_rx_data *rx, key->u.ccmp.tfm, b_0, aad, skb->data + hdrlen + IEEE80211_CCMP_HDR_LEN, data_len, - skb->data + skb->len - mic_len, mic_len)) + skb->data + skb->len - mic_len)) return RX_DROP_UNUSABLE; } -- cgit v1.2.3 From 2a9e25796b289f71c0802eca46005c750c57af95 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Fri, 6 Oct 2017 11:53:33 +0200 Subject: mac80211: only remove AP VLAN frames from TXQ MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit When removing an AP VLAN interface, mac80211 currently purges the entire TXQ for the AP interface. Fix this by using the FQ API introduced in the previous patch to filter frames. Signed-off-by: Johannes Berg Acked-by: Toke Høiland-Jørgensen Signed-off-by: Johannes Berg --- net/mac80211/ieee80211_i.h | 2 ++ net/mac80211/iface.c | 25 +++---------------------- net/mac80211/tx.c | 34 ++++++++++++++++++++++++++++++++++ 3 files changed, 39 insertions(+), 22 deletions(-) (limited to 'net/mac80211') diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 9675814f64db..68f874e73561 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -2009,6 +2009,8 @@ void ieee80211_txq_init(struct ieee80211_sub_if_data *sdata, struct txq_info *txq, int tid); void ieee80211_txq_purge(struct ieee80211_local *local, struct txq_info *txqi); +void ieee80211_txq_remove_vlan(struct ieee80211_local *local, + struct ieee80211_sub_if_data *sdata); void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata, u16 transaction, u16 auth_alg, u16 status, const u8 *extra, size_t extra_len, const u8 *bssid, diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c index 2619daa29961..13b16f90e1cf 100644 --- a/net/mac80211/iface.c +++ b/net/mac80211/iface.c @@ -793,9 +793,7 @@ static int ieee80211_open(struct net_device *dev) static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata, bool going_down) { - struct ieee80211_sub_if_data *txq_sdata = sdata; struct ieee80211_local *local = sdata->local; - struct fq *fq = &local->fq; unsigned long flags; struct sk_buff *skb, *tmp; u32 hw_reconf_flags = 0; @@ -939,9 +937,6 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata, switch (sdata->vif.type) { case NL80211_IFTYPE_AP_VLAN: - txq_sdata = container_of(sdata->bss, - struct ieee80211_sub_if_data, u.ap); - mutex_lock(&local->mtx); list_del(&sdata->u.vlan.list); mutex_unlock(&local->mtx); @@ -998,8 +993,6 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata, skb_queue_purge(&sdata->skb_queue); } - sdata->bss = NULL; - spin_lock_irqsave(&local->queue_stop_reason_lock, flags); for (i = 0; i < IEEE80211_MAX_QUEUES; i++) { skb_queue_walk_safe(&local->pending[i], skb, tmp) { @@ -1012,22 +1005,10 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata, } spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); - if (txq_sdata->vif.txq) { - struct txq_info *txqi = to_txq_info(txq_sdata->vif.txq); + if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN) + ieee80211_txq_remove_vlan(local, sdata); - /* - * FIXME FIXME - * - * We really shouldn't purge the *entire* txqi since that - * contains frames for the other AP_VLANs (and possibly - * the AP itself) as well, but there's no API in FQ now - * to be able to filter. - */ - - spin_lock_bh(&fq->lock); - ieee80211_txq_purge(local, txqi); - spin_unlock_bh(&fq->lock); - } + sdata->bss = NULL; if (local->open_count == 0) ieee80211_clear_tx_pending(local); diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index 94826680cf2b..7b8154474b9e 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -1396,6 +1396,40 @@ static void ieee80211_txq_enqueue(struct ieee80211_local *local, fq_flow_get_default_func); } +static bool fq_vlan_filter_func(struct fq *fq, struct fq_tin *tin, + struct fq_flow *flow, struct sk_buff *skb, + void *data) +{ + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); + + return info->control.vif == data; +} + +void ieee80211_txq_remove_vlan(struct ieee80211_local *local, + struct ieee80211_sub_if_data *sdata) +{ + struct fq *fq = &local->fq; + struct txq_info *txqi; + struct fq_tin *tin; + struct ieee80211_sub_if_data *ap; + + if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_AP_VLAN)) + return; + + ap = container_of(sdata->bss, struct ieee80211_sub_if_data, u.ap); + + if (!ap->vif.txq) + return; + + txqi = to_txq_info(ap->vif.txq); + tin = &txqi->tin; + + spin_lock_bh(&fq->lock); + fq_tin_filter(fq, tin, fq_vlan_filter_func, &sdata->vif, + fq_skb_free_func); + spin_unlock_bh(&fq->lock); +} + void ieee80211_txq_init(struct ieee80211_sub_if_data *sdata, struct sta_info *sta, struct txq_info *txqi, int tid) -- cgit v1.2.3 From 9e97964d5e500d8d0df94e1a79ad715ad4f9c995 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Wed, 11 Oct 2017 15:46:45 +0200 Subject: mac80211: use crypto_aead_authsize() Evidently this API is intended to be used to isolate against API changes, so use it instead of accessing ->authsize. Signed-off-by: Johannes Berg --- net/mac80211/aead_api.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'net/mac80211') diff --git a/net/mac80211/aead_api.c b/net/mac80211/aead_api.c index 347f13953b2c..160f9df30402 100644 --- a/net/mac80211/aead_api.c +++ b/net/mac80211/aead_api.c @@ -21,7 +21,7 @@ int aead_encrypt(struct crypto_aead *tfm, u8 *b_0, u8 *aad, size_t aad_len, u8 *data, size_t data_len, u8 *mic) { - size_t mic_len = tfm->authsize; + size_t mic_len = crypto_aead_authsize(tfm); struct scatterlist sg[3]; struct aead_request *aead_req; int reqsize = sizeof(*aead_req) + crypto_aead_reqsize(tfm); @@ -52,7 +52,7 @@ int aead_encrypt(struct crypto_aead *tfm, u8 *b_0, u8 *aad, size_t aad_len, int aead_decrypt(struct crypto_aead *tfm, u8 *b_0, u8 *aad, size_t aad_len, u8 *data, size_t data_len, u8 *mic) { - size_t mic_len = tfm->authsize; + size_t mic_len = crypto_aead_authsize(tfm); struct scatterlist sg[3]; struct aead_request *aead_req; int reqsize = sizeof(*aead_req) + crypto_aead_reqsize(tfm); -- cgit v1.2.3 From b1b1ae2c1c150f8db5d3523c74e81eaf8cae5cbb Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Fri, 13 Oct 2017 15:26:01 +0300 Subject: mac80211: don't track HT capability changes The code here (more or less accidentally) tracks the HT capability of the AP when connected, and we found at least one AP that erroneously toggles its 20/40 capability bit when changing between 20/40 MHz. The connection to the AP is then broken because we set the 40 MHz disable flag based on this, as soon as it switches to 20 MHz, but because the flag then changed, we disconnect. I'd be inclined to just ignore this issue, since we then reconnect while the AP is in 20 MHz mode and never use 40 MHz with it again, but this code is a bit strange anyway - we don't use the capabilities for anything else. Change the code to simply not track the HT capabilities at all, which assumes that the AP at least sets 20/40 capability when operating in 40 MHz (or higher). If not, rate scaling might end up using only the narrower bandwidth. The new behaviour also mirrors what VHT does, where we only check the VHT operation. Signed-off-by: Johannes Berg --- net/mac80211/mlme.c | 14 +++----------- 1 file changed, 3 insertions(+), 11 deletions(-) (limited to 'net/mac80211') diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index ee5ca1bc5a20..e4ededa1909d 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -145,7 +145,6 @@ static u32 ieee80211_determine_chantype(struct ieee80211_sub_if_data *sdata, struct ieee80211_supported_band *sband, struct ieee80211_channel *channel, - const struct ieee80211_ht_cap *ht_cap, const struct ieee80211_ht_operation *ht_oper, const struct ieee80211_vht_operation *vht_oper, struct cfg80211_chan_def *chandef, bool tracking) @@ -163,20 +162,13 @@ ieee80211_determine_chantype(struct ieee80211_sub_if_data *sdata, chandef->center_freq1 = channel->center_freq; chandef->center_freq2 = 0; - if (!ht_cap || !ht_oper || !sta_ht_cap.ht_supported) { + if (!ht_oper || !sta_ht_cap.ht_supported) { ret = IEEE80211_STA_DISABLE_HT | IEEE80211_STA_DISABLE_VHT; goto out; } chandef->width = NL80211_CHAN_WIDTH_20; - if (!(ht_cap->cap_info & - cpu_to_le16(IEEE80211_HT_CAP_SUP_WIDTH_20_40))) { - ret = IEEE80211_STA_DISABLE_40MHZ; - vht_chandef = *chandef; - goto out; - } - ht_cfreq = ieee80211_channel_to_frequency(ht_oper->primary_chan, channel->band); /* check that channel matches the right operating channel */ @@ -344,7 +336,7 @@ static int ieee80211_config_bw(struct ieee80211_sub_if_data *sdata, /* calculate new channel (type) based on HT/VHT operation IEs */ flags = ieee80211_determine_chantype(sdata, sband, chan, - ht_cap, ht_oper, vht_oper, + ht_oper, vht_oper, &chandef, true); /* @@ -4312,7 +4304,7 @@ static int ieee80211_prep_channel(struct ieee80211_sub_if_data *sdata, ifmgd->flags |= ieee80211_determine_chantype(sdata, sband, cbss->channel, - ht_cap, ht_oper, vht_oper, + ht_oper, vht_oper, &chandef, false); sdata->needed_rx_chains = min(ieee80211_ht_vht_rx_chains(sdata, cbss), -- cgit v1.2.3