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-rw-r--r--net/mac80211/tx.c3082
1 files changed, 2318 insertions, 764 deletions
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index f170d6c6629a..9d8b0a25f73c 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -1,15 +1,11 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright 2002-2005, Instant802 Networks, Inc.
* Copyright 2005-2006, Devicescape Software, Inc.
* Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
* Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
* Copyright 2013-2014 Intel Mobile Communications GmbH
- * Copyright (C) 2018 Intel Corporation
- *
- * 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.
- *
+ * Copyright (C) 2018-2025 Intel Corporation
*
* Transmit and frame generation functions.
*/
@@ -28,8 +24,10 @@
#include <net/mac80211.h>
#include <net/codel.h>
#include <net/codel_impl.h>
-#include <asm/unaligned.h>
+#include <linux/unaligned.h>
#include <net/fq_impl.h>
+#include <net/sock.h>
+#include <net/gso.h>
#include "ieee80211_i.h"
#include "driver-ops.h"
@@ -42,50 +40,37 @@
/* misc utils */
-static inline void ieee80211_tx_stats(struct net_device *dev, u32 len)
-{
- struct pcpu_sw_netstats *tstats = this_cpu_ptr(dev->tstats);
-
- u64_stats_update_begin(&tstats->syncp);
- tstats->tx_packets++;
- tstats->tx_bytes += len;
- u64_stats_update_end(&tstats->syncp);
-}
-
static __le16 ieee80211_duration(struct ieee80211_tx_data *tx,
struct sk_buff *skb, int group_addr,
int next_frag_len)
{
- int rate, mrate, erp, dur, i, shift = 0;
+ int rate, mrate, erp, dur, i;
struct ieee80211_rate *txrate;
struct ieee80211_local *local = tx->local;
struct ieee80211_supported_band *sband;
struct ieee80211_hdr *hdr;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
- struct ieee80211_chanctx_conf *chanctx_conf;
- u32 rate_flags = 0;
/* assume HW handles this */
if (tx->rate.flags & (IEEE80211_TX_RC_MCS | IEEE80211_TX_RC_VHT_MCS))
return 0;
- rcu_read_lock();
- chanctx_conf = rcu_dereference(tx->sdata->vif.chanctx_conf);
- if (chanctx_conf) {
- shift = ieee80211_chandef_get_shift(&chanctx_conf->def);
- rate_flags = ieee80211_chandef_rate_flags(&chanctx_conf->def);
- }
- rcu_read_unlock();
-
/* uh huh? */
if (WARN_ON_ONCE(tx->rate.idx < 0))
return 0;
+ if (info->band >= NUM_NL80211_BANDS)
+ return 0;
+
sband = local->hw.wiphy->bands[info->band];
txrate = &sband->bitrates[tx->rate.idx];
erp = txrate->flags & IEEE80211_RATE_ERP_G;
+ /* device is expected to do this */
+ if (sband->band == NL80211_BAND_S1GHZ)
+ return 0;
+
/*
* data and mgmt (except PS Poll):
* - during CFP: 32768
@@ -144,42 +129,39 @@ static __le16 ieee80211_duration(struct ieee80211_tx_data *tx,
mrate = sband->bitrates[0].bitrate;
for (i = 0; i < sband->n_bitrates; i++) {
struct ieee80211_rate *r = &sband->bitrates[i];
+ u32 flag;
if (r->bitrate > txrate->bitrate)
break;
- if ((rate_flags & r->flags) != rate_flags)
- continue;
-
if (tx->sdata->vif.bss_conf.basic_rates & BIT(i))
- rate = DIV_ROUND_UP(r->bitrate, 1 << shift);
+ rate = r->bitrate;
switch (sband->band) {
- case NL80211_BAND_2GHZ: {
- u32 flag;
- if (tx->sdata->flags & IEEE80211_SDATA_OPERATING_GMODE)
+ case NL80211_BAND_2GHZ:
+ case NL80211_BAND_LC:
+ if (tx->sdata->deflink.operating_11g_mode)
flag = IEEE80211_RATE_MANDATORY_G;
else
flag = IEEE80211_RATE_MANDATORY_B;
- if (r->flags & flag)
- mrate = r->bitrate;
break;
- }
case NL80211_BAND_5GHZ:
- if (r->flags & IEEE80211_RATE_MANDATORY_A)
- mrate = r->bitrate;
+ case NL80211_BAND_6GHZ:
+ flag = IEEE80211_RATE_MANDATORY_A;
break;
- case NL80211_BAND_60GHZ:
- /* TODO, for now fall through */
- case NUM_NL80211_BANDS:
+ default:
+ flag = 0;
WARN_ON(1);
break;
}
+
+ if (r->flags & flag)
+ mrate = r->bitrate;
}
if (rate == -1) {
/* No matching basic rate found; use highest suitable mandatory
* PHY rate */
- rate = DIV_ROUND_UP(mrate, 1 << shift);
+ rate = mrate;
}
/* Don't calculate ACKs for QoS Frames with NoAck Policy set */
@@ -191,8 +173,7 @@ static __le16 ieee80211_duration(struct ieee80211_tx_data *tx,
* (10 bytes + 4-byte FCS = 112 bits) plus SIFS; rounded up
* to closest integer */
dur = ieee80211_frame_duration(sband->band, 10, rate, erp,
- tx->sdata->vif.bss_conf.use_short_preamble,
- shift);
+ tx->sdata->vif.bss_conf.use_short_preamble);
if (next_frag_len) {
/* Frame is fragmented: duration increases with time needed to
@@ -201,8 +182,7 @@ static __le16 ieee80211_duration(struct ieee80211_tx_data *tx,
/* next fragment */
dur += ieee80211_frame_duration(sband->band, next_frag_len,
txrate->bitrate, erp,
- tx->sdata->vif.bss_conf.use_short_preamble,
- shift);
+ tx->sdata->vif.bss_conf.use_short_preamble);
}
return cpu_to_le16(dur);
@@ -272,8 +252,8 @@ ieee80211_tx_h_dynamic_ps(struct ieee80211_tx_data *tx)
IEEE80211_QUEUE_STOP_REASON_PS,
false);
ifmgd->flags &= ~IEEE80211_STA_NULLFUNC_ACKED;
- ieee80211_queue_work(&local->hw,
- &local->dynamic_ps_disable_work);
+ wiphy_work_queue(local->hw.wiphy,
+ &local->dynamic_ps_disable_work);
}
/* Don't restart the timer if we're not disassociated */
@@ -300,7 +280,7 @@ ieee80211_tx_h_check_assoc(struct ieee80211_tx_data *tx)
if (unlikely(test_bit(SCAN_SW_SCANNING, &tx->local->scanning)) &&
test_bit(SDATA_STATE_OFFCHANNEL, &tx->sdata->state) &&
!ieee80211_is_probe_req(hdr->frame_control) &&
- !ieee80211_is_nullfunc(hdr->frame_control))
+ !ieee80211_is_any_nullfunc(hdr->frame_control))
/*
* When software scanning only nullfunc frames (to notify
* the sleep state to the AP) and probe requests (for the
@@ -317,9 +297,6 @@ ieee80211_tx_h_check_assoc(struct ieee80211_tx_data *tx)
if (tx->sdata->vif.type == NL80211_IFTYPE_OCB)
return TX_CONTINUE;
- if (tx->sdata->vif.type == NL80211_IFTYPE_WDS)
- return TX_CONTINUE;
-
if (tx->flags & IEEE80211_TX_PS_BUFFERED)
return TX_CONTINUE;
@@ -498,7 +475,7 @@ ieee80211_tx_h_unicast_ps_buf(struct ieee80211_tx_data *tx)
int ac = skb_get_queue_mapping(tx->skb);
if (ieee80211_is_mgmt(hdr->frame_control) &&
- !ieee80211_is_bufferable_mmpdu(hdr->frame_control)) {
+ !ieee80211_is_bufferable_mmpdu(tx->skb)) {
info->flags |= IEEE80211_TX_CTL_NO_PS_BUFFER;
return TX_CONTINUE;
}
@@ -533,7 +510,7 @@ ieee80211_tx_h_unicast_ps_buf(struct ieee80211_tx_data *tx)
info->control.jiffies = jiffies;
info->control.vif = &tx->sdata->vif;
- info->flags |= IEEE80211_TX_INTFL_NEED_TXPROCESSING;
+ info->control.flags |= IEEE80211_TX_INTCFL_NEED_TXPROCESSING;
info->flags &= ~IEEE80211_TX_TEMPORARY_FLAGS;
skb_queue_tail(&sta->ps_tx_buf[ac], tx->skb);
spin_unlock(&sta->ps_lock);
@@ -586,6 +563,35 @@ ieee80211_tx_h_check_control_port_protocol(struct ieee80211_tx_data *tx)
return TX_CONTINUE;
}
+static struct ieee80211_key *
+ieee80211_select_link_key(struct ieee80211_tx_data *tx)
+{
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx->skb->data;
+ struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb);
+ struct ieee80211_link_data *link;
+ unsigned int link_id;
+
+ link_id = u32_get_bits(info->control.flags, IEEE80211_TX_CTRL_MLO_LINK);
+ if (link_id == IEEE80211_LINK_UNSPECIFIED) {
+ link = &tx->sdata->deflink;
+ } else {
+ link = rcu_dereference(tx->sdata->link[link_id]);
+ if (!link)
+ return NULL;
+ }
+
+ if (ieee80211_is_group_privacy_action(tx->skb))
+ return rcu_dereference(link->default_multicast_key);
+ else if (ieee80211_is_mgmt(hdr->frame_control) &&
+ is_multicast_ether_addr(hdr->addr1) &&
+ ieee80211_is_robust_mgmt_frame(tx->skb))
+ return rcu_dereference(link->default_mgmt_key);
+ else if (is_multicast_ether_addr(hdr->addr1))
+ return rcu_dereference(link->default_multicast_key);
+
+ return NULL;
+}
+
static ieee80211_tx_result debug_noinline
ieee80211_tx_h_select_key(struct ieee80211_tx_data *tx)
{
@@ -593,21 +599,15 @@ ieee80211_tx_h_select_key(struct ieee80211_tx_data *tx)
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb);
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx->skb->data;
- if (unlikely(info->flags & IEEE80211_TX_INTFL_DONT_ENCRYPT))
+ if (unlikely(info->flags & IEEE80211_TX_INTFL_DONT_ENCRYPT)) {
tx->key = NULL;
- else if (tx->sta &&
- (key = rcu_dereference(tx->sta->ptk[tx->sta->ptk_idx])))
- tx->key = key;
- else if (ieee80211_is_group_privacy_action(tx->skb) &&
- (key = rcu_dereference(tx->sdata->default_multicast_key)))
- tx->key = key;
- else if (ieee80211_is_mgmt(hdr->frame_control) &&
- is_multicast_ether_addr(hdr->addr1) &&
- ieee80211_is_robust_mgmt_frame(tx->skb) &&
- (key = rcu_dereference(tx->sdata->default_mgmt_key)))
+ return TX_CONTINUE;
+ }
+
+ if (tx->sta &&
+ (key = rcu_dereference(tx->sta->ptk[tx->sta->ptk_idx])))
tx->key = key;
- else if (is_multicast_ether_addr(hdr->addr1) &&
- (key = rcu_dereference(tx->sdata->default_multicast_key)))
+ else if ((key = ieee80211_select_link_key(tx)))
tx->key = key;
else if (!is_multicast_ether_addr(hdr->addr1) &&
(key = rcu_dereference(tx->sdata->default_unicast_key)))
@@ -615,6 +615,12 @@ ieee80211_tx_h_select_key(struct ieee80211_tx_data *tx)
else
tx->key = NULL;
+ if (info->flags & IEEE80211_TX_CTL_HW_80211_ENCAP) {
+ if (tx->key && tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
+ info->control.hw_key = &tx->key->conf;
+ return TX_CONTINUE;
+ }
+
if (tx->key) {
bool skip_hw = false;
@@ -651,12 +657,16 @@ ieee80211_tx_h_select_key(struct ieee80211_tx_data *tx)
}
if (unlikely(tx->key && tx->key->flags & KEY_FLAG_TAINTED &&
- !ieee80211_is_deauth(hdr->frame_control)))
+ !ieee80211_is_deauth(hdr->frame_control)) &&
+ tx->skb->protocol != tx->sdata->control_port_protocol)
return TX_DROP;
if (!skip_hw && tx->key &&
tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
info->control.hw_key = &tx->key->conf;
+ } else if (ieee80211_is_data_present(hdr->frame_control) && tx->sta &&
+ test_sta_flag(tx->sta, WLAN_STA_USES_ENCRYPTION)) {
+ return TX_DROP;
}
return TX_CONTINUE;
@@ -671,11 +681,15 @@ ieee80211_tx_h_rate_ctrl(struct ieee80211_tx_data *tx)
u32 len;
struct ieee80211_tx_rate_control txrc;
struct ieee80211_sta_rates *ratetbl = NULL;
+ bool encap = info->flags & IEEE80211_TX_CTL_HW_80211_ENCAP;
bool assoc = false;
memset(&txrc, 0, sizeof(txrc));
- sband = tx->local->hw.wiphy->bands[info->band];
+ if (info->band < NUM_NL80211_BANDS)
+ sband = tx->local->hw.wiphy->bands[info->band];
+ else
+ return TX_CONTINUE;
len = min_t(u32, tx->skb->len + FCS_LEN,
tx->local->hw.wiphy->frag_threshold);
@@ -686,11 +700,16 @@ ieee80211_tx_h_rate_ctrl(struct ieee80211_tx_data *tx)
txrc.bss_conf = &tx->sdata->vif.bss_conf;
txrc.skb = tx->skb;
txrc.reported_rate.idx = -1;
- txrc.rate_idx_mask = tx->sdata->rc_rateidx_mask[info->band];
- if (tx->sdata->rc_has_mcs_mask[info->band])
- txrc.rate_idx_mcs_mask =
- tx->sdata->rc_rateidx_mcs_mask[info->band];
+ if (unlikely(info->control.flags & IEEE80211_TX_CTRL_DONT_USE_RATE_MASK)) {
+ txrc.rate_idx_mask = ~0;
+ } else {
+ txrc.rate_idx_mask = tx->sdata->rc_rateidx_mask[info->band];
+
+ if (tx->sdata->rc_has_mcs_mask[info->band])
+ txrc.rate_idx_mcs_mask =
+ tx->sdata->rc_rateidx_mcs_mask[info->band];
+ }
txrc.bss = (tx->sdata->vif.type == NL80211_IFTYPE_AP ||
tx->sdata->vif.type == NL80211_IFTYPE_MESH_POINT ||
@@ -712,7 +731,7 @@ ieee80211_tx_h_rate_ctrl(struct ieee80211_tx_data *tx)
* just wants a probe response.
*/
if (tx->sdata->vif.bss_conf.use_short_preamble &&
- (ieee80211_is_data(hdr->frame_control) ||
+ (ieee80211_is_tx_data(tx->skb) ||
(tx->sta && test_sta_flag(tx->sta, WLAN_STA_SHORT_PREAMBLE))))
txrc.short_preamble = true;
@@ -734,7 +753,8 @@ ieee80211_tx_h_rate_ctrl(struct ieee80211_tx_data *tx)
"%s: Dropped data frame as no usable bitrate found while "
"scanning and associated. Target station: "
"%pM on %d GHz band\n",
- tx->sdata->name, hdr->addr1,
+ tx->sdata->name,
+ encap ? ((struct ethhdr *)hdr)->h_dest : hdr->addr1,
info->band ? 5 : 2))
return TX_DROP;
@@ -768,10 +788,10 @@ ieee80211_tx_h_rate_ctrl(struct ieee80211_tx_data *tx)
if (txrc.reported_rate.idx < 0) {
txrc.reported_rate = tx->rate;
- if (tx->sta && ieee80211_is_data(hdr->frame_control))
- tx->sta->tx_stats.last_rate = txrc.reported_rate;
+ if (tx->sta && ieee80211_is_tx_data(tx->skb))
+ tx->sta->deflink.tx_stats.last_rate = txrc.reported_rate;
} else if (tx->sta)
- tx->sta->tx_stats.last_rate = txrc.reported_rate;
+ tx->sta->deflink.tx_stats.last_rate = txrc.reported_rate;
if (ratetbl)
return TX_CONTINUE;
@@ -821,6 +841,19 @@ ieee80211_tx_h_sequence(struct ieee80211_tx_data *tx)
if (ieee80211_is_qos_nullfunc(hdr->frame_control))
return TX_CONTINUE;
+ if (info->control.flags & IEEE80211_TX_CTRL_NO_SEQNO)
+ return TX_CONTINUE;
+
+ /* SNS11 from 802.11be 10.3.2.14 */
+ if (unlikely(is_multicast_ether_addr(hdr->addr1) &&
+ ieee80211_vif_is_mld(info->control.vif) &&
+ info->control.vif->type == NL80211_IFTYPE_AP)) {
+ if (info->control.flags & IEEE80211_TX_CTRL_MCAST_MLO_FIRST_TX)
+ tx->sdata->mld_mcast_seq += 0x10;
+ hdr->seq_ctrl = cpu_to_le16(tx->sdata->mld_mcast_seq);
+ return TX_CONTINUE;
+ }
+
/*
* Anything but QoS data that has a sequence number field
* (is long enough) gets a sequence number from the global
@@ -829,15 +862,13 @@ ieee80211_tx_h_sequence(struct ieee80211_tx_data *tx)
*/
if (!ieee80211_is_data_qos(hdr->frame_control) ||
is_multicast_ether_addr(hdr->addr1)) {
- if (tx->flags & IEEE80211_TX_NO_SEQNO)
- return TX_CONTINUE;
/* driver should assign sequence number */
info->flags |= IEEE80211_TX_CTL_ASSIGN_SEQ;
/* for pure STA mode without beacons, we can do it */
hdr->seq_ctrl = cpu_to_le16(tx->sdata->sequence_number);
tx->sdata->sequence_number += 0x10;
if (tx->sta)
- tx->sta->tx_stats.msdu[IEEE80211_NUM_TIDS]++;
+ tx->sta->deflink.tx_stats.msdu[IEEE80211_NUM_TIDS]++;
return TX_CONTINUE;
}
@@ -851,7 +882,7 @@ ieee80211_tx_h_sequence(struct ieee80211_tx_data *tx)
/* include per-STA, per-TID sequence counter */
tid = ieee80211_get_tid(hdr);
- tx->sta->tx_stats.msdu[tid]++;
+ tx->sta->deflink.tx_stats.msdu[tid]++;
hdr->seq_ctrl = ieee80211_tx_next_seq(tx->sta, tid);
@@ -882,7 +913,7 @@ static int ieee80211_fragment(struct ieee80211_tx_data *tx,
rem -= fraglen;
tmp = dev_alloc_skb(local->tx_headroom +
frag_threshold +
- tx->sdata->encrypt_headroom +
+ IEEE80211_ENCRYPT_HEADROOM +
IEEE80211_ENCRYPT_TAILROOM);
if (!tmp)
return -ENOMEM;
@@ -890,7 +921,7 @@ static int ieee80211_fragment(struct ieee80211_tx_data *tx,
__skb_queue_tail(&tx->skbs, tmp);
skb_reserve(tmp,
- local->tx_headroom + tx->sdata->encrypt_headroom);
+ local->tx_headroom + IEEE80211_ENCRYPT_HEADROOM);
/* copy control information */
memcpy(tmp->cb, skb->cb, sizeof(tmp->cb));
@@ -1004,10 +1035,10 @@ ieee80211_tx_h_stats(struct ieee80211_tx_data *tx)
skb_queue_walk(&tx->skbs, skb) {
ac = skb_get_queue_mapping(skb);
- tx->sta->tx_stats.bytes[ac] += skb->len;
+ tx->sta->deflink.tx_stats.bytes[ac] += skb->len;
}
if (ac >= 0)
- tx->sta->tx_stats.packets[ac]++;
+ tx->sta->deflink.tx_stats.packets[ac]++;
return TX_CONTINUE;
}
@@ -1031,17 +1062,17 @@ ieee80211_tx_h_encrypt(struct ieee80211_tx_data *tx)
return ieee80211_crypto_ccmp_encrypt(
tx, IEEE80211_CCMP_256_MIC_LEN);
case WLAN_CIPHER_SUITE_AES_CMAC:
- return ieee80211_crypto_aes_cmac_encrypt(tx);
+ return ieee80211_crypto_aes_cmac_encrypt(
+ tx, IEEE80211_CMAC_128_MIC_LEN);
case WLAN_CIPHER_SUITE_BIP_CMAC_256:
- return ieee80211_crypto_aes_cmac_256_encrypt(tx);
+ return ieee80211_crypto_aes_cmac_encrypt(
+ tx, IEEE80211_CMAC_256_MIC_LEN);
case WLAN_CIPHER_SUITE_BIP_GMAC_128:
case WLAN_CIPHER_SUITE_BIP_GMAC_256:
return ieee80211_crypto_aes_gmac_encrypt(tx);
case WLAN_CIPHER_SUITE_GCMP:
case WLAN_CIPHER_SUITE_GCMP_256:
return ieee80211_crypto_gcmp_encrypt(tx);
- default:
- return ieee80211_crypto_hw_encrypt(tx);
}
return TX_DROP;
@@ -1086,7 +1117,6 @@ static bool ieee80211_tx_prep_agg(struct ieee80211_tx_data *tx,
struct sk_buff *purge_skb = NULL;
if (test_bit(HT_AGG_STATE_OPERATIONAL, &tid_tx->state)) {
- info->flags |= IEEE80211_TX_CTL_AMPDU;
reset_agg_timer = true;
} else if (test_bit(HT_AGG_STATE_WANT_START, &tid_tx->state)) {
/*
@@ -1118,7 +1148,6 @@ static bool ieee80211_tx_prep_agg(struct ieee80211_tx_data *tx,
if (!tid_tx) {
/* do nothing, let packet pass through */
} else if (test_bit(HT_AGG_STATE_OPERATIONAL, &tid_tx->state)) {
- info->flags |= IEEE80211_TX_CTL_AMPDU;
reset_agg_timer = true;
} else {
queued = true;
@@ -1129,7 +1158,7 @@ static bool ieee80211_tx_prep_agg(struct ieee80211_tx_data *tx,
tx->sta->sta.addr, tx->sta->sta.aid);
}
info->control.vif = &tx->sdata->vif;
- info->flags |= IEEE80211_TX_INTFL_NEED_TXPROCESSING;
+ info->control.flags |= IEEE80211_TX_INTCFL_NEED_TXPROCESSING;
info->flags &= ~IEEE80211_TX_TEMPORARY_FLAGS;
__skb_queue_tail(&tid_tx->pending, skb);
if (skb_queue_len(&tid_tx->pending) > STA_MAX_TX_BUFFER)
@@ -1148,6 +1177,29 @@ static bool ieee80211_tx_prep_agg(struct ieee80211_tx_data *tx,
return queued;
}
+void ieee80211_aggr_check(struct ieee80211_sub_if_data *sdata,
+ struct sta_info *sta, struct sk_buff *skb)
+{
+ struct rate_control_ref *ref = sdata->local->rate_ctrl;
+ u16 tid;
+
+ if (!ref || !(ref->ops->capa & RATE_CTRL_CAPA_AMPDU_TRIGGER))
+ return;
+
+ if (!sta ||
+ (!sta->sta.valid_links && !sta->sta.deflink.ht_cap.ht_supported &&
+ !sta->sta.deflink.s1g_cap.s1g) ||
+ !sta->sta.wme || skb_get_queue_mapping(skb) == IEEE80211_AC_VO ||
+ skb->protocol == sdata->control_port_protocol)
+ return;
+
+ tid = skb->priority & IEEE80211_QOS_CTL_TID_MASK;
+ if (likely(sta->ampdu_mlme.tid_tx[tid]))
+ return;
+
+ ieee80211_start_tx_ba_session(&sta->sta, tid, 0);
+}
+
/*
* initialises @tx
* pass %NULL for the station if unknown, a valid pointer if known
@@ -1161,6 +1213,7 @@ ieee80211_tx_prepare(struct ieee80211_sub_if_data *sdata,
struct ieee80211_local *local = sdata->local;
struct ieee80211_hdr *hdr;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+ bool aggr_check = false;
int tid;
memset(tx, 0, sizeof(*tx));
@@ -1174,7 +1227,7 @@ ieee80211_tx_prepare(struct ieee80211_sub_if_data *sdata,
* we are doing the needed processing, so remove the flag
* now.
*/
- info->flags &= ~IEEE80211_TX_INTFL_NEED_TXPROCESSING;
+ info->control.flags &= ~IEEE80211_TX_INTCFL_NEED_TXPROCESSING;
hdr = (struct ieee80211_hdr *) skb->data;
@@ -1186,13 +1239,13 @@ ieee80211_tx_prepare(struct ieee80211_sub_if_data *sdata,
tx->sta = rcu_dereference(sdata->u.vlan.sta);
if (!tx->sta && sdata->wdev.use_4addr)
return TX_DROP;
- } else if (info->flags & (IEEE80211_TX_INTFL_NL80211_FRAME_TX |
- IEEE80211_TX_CTL_INJECTED) ||
- tx->sdata->control_port_protocol == tx->skb->protocol) {
+ } else if (tx->sdata->control_port_protocol == tx->skb->protocol) {
tx->sta = sta_info_get_bss(sdata, hdr->addr1);
}
- if (!tx->sta && !is_multicast_ether_addr(hdr->addr1))
+ if (!tx->sta && !is_multicast_ether_addr(hdr->addr1)) {
tx->sta = sta_info_get(sdata, hdr->addr1);
+ aggr_check = true;
+ }
}
if (tx->sta && ieee80211_is_data_qos(hdr->frame_control) &&
@@ -1202,8 +1255,12 @@ ieee80211_tx_prepare(struct ieee80211_sub_if_data *sdata,
struct tid_ampdu_tx *tid_tx;
tid = ieee80211_get_tid(hdr);
-
tid_tx = rcu_dereference(tx->sta->ampdu_mlme.tid_tx[tid]);
+ if (!tid_tx && aggr_check) {
+ ieee80211_aggr_check(sdata, tx->sta, skb);
+ tid_tx = rcu_dereference(tx->sta->ampdu_mlme.tid_tx[tid]);
+ }
+
if (tid_tx) {
bool queued;
@@ -1253,9 +1310,10 @@ static struct txq_info *ieee80211_get_txq(struct ieee80211_local *local,
(info->control.flags & IEEE80211_TX_CTRL_PS_RESPONSE))
return NULL;
- if (unlikely(!ieee80211_is_data_present(hdr->frame_control))) {
+ if (!(info->flags & IEEE80211_TX_CTL_HW_80211_ENCAP) &&
+ unlikely(!ieee80211_is_data_present(hdr->frame_control))) {
if ((!ieee80211_is_mgmt(hdr->frame_control) ||
- ieee80211_is_bufferable_mmpdu(hdr->frame_control) ||
+ ieee80211_is_bufferable_mmpdu(skb) ||
vif->type == NL80211_IFTYPE_STATION) &&
sta && sta->uploaded) {
/*
@@ -1271,7 +1329,7 @@ static struct txq_info *ieee80211_get_txq(struct ieee80211_local *local,
return NULL;
txq = sta->sta.txq[tid];
- } else if (vif) {
+ } else {
txq = vif->txq;
}
@@ -1283,7 +1341,11 @@ static struct txq_info *ieee80211_get_txq(struct ieee80211_local *local,
static void ieee80211_set_skb_enqueue_time(struct sk_buff *skb)
{
- IEEE80211_SKB_CB(skb)->control.enqueue_time = codel_get_time();
+ struct sk_buff *next;
+ codel_time_t now = codel_get_time();
+
+ skb_list_walk_safe(skb, skb, next)
+ IEEE80211_SKB_CB(skb)->control.enqueue_time = now;
}
static u32 codel_skb_len_func(const struct sk_buff *skb)
@@ -1312,7 +1374,7 @@ static struct sk_buff *codel_dequeue_func(struct codel_vars *cvars,
fq = &local->fq;
if (cvars == &txqi->def_cvars)
- flow = &txqi->def_flow;
+ flow = &txqi->tin.default_flow;
else
flow = &fq->flows[cvars - local->cvars];
@@ -1345,17 +1407,10 @@ static struct sk_buff *fq_tin_dequeue_func(struct fq *fq,
local = container_of(fq, struct ieee80211_local, fq);
txqi = container_of(tin, struct txq_info, tin);
+ cparams = &local->cparams;
cstats = &txqi->cstats;
- if (txqi->txq.sta) {
- struct sta_info *sta = container_of(txqi->txq.sta,
- struct sta_info, sta);
- cparams = &sta->cparams;
- } else {
- cparams = &local->cparams;
- }
-
- if (flow == &txqi->def_flow)
+ if (flow == &tin->default_flow)
cvars = &txqi->def_cvars;
else
cvars = &local->cvars[flow - fq->flows];
@@ -1382,28 +1437,33 @@ static void fq_skb_free_func(struct fq *fq,
ieee80211_free_txskb(&local->hw, skb);
}
-static struct fq_flow *fq_flow_get_default_func(struct fq *fq,
- struct fq_tin *tin,
- int idx,
- struct sk_buff *skb)
-{
- struct txq_info *txqi;
-
- txqi = container_of(tin, struct txq_info, tin);
- return &txqi->def_flow;
-}
-
static void ieee80211_txq_enqueue(struct ieee80211_local *local,
struct txq_info *txqi,
struct sk_buff *skb)
{
struct fq *fq = &local->fq;
struct fq_tin *tin = &txqi->tin;
+ u32 flow_idx;
ieee80211_set_skb_enqueue_time(skb);
- fq_tin_enqueue(fq, tin, skb,
- fq_skb_free_func,
- fq_flow_get_default_func);
+
+ spin_lock_bh(&fq->lock);
+ /*
+ * For management frames, don't really apply codel etc.,
+ * we don't want to apply any shaping or anything we just
+ * want to simplify the driver API by having them on the
+ * txqi.
+ */
+ if (unlikely(txqi->txq.tid == IEEE80211_NUM_TIDS)) {
+ IEEE80211_SKB_CB(skb)->control.flags |=
+ IEEE80211_TX_INTCFL_NEED_TXPROCESSING;
+ __skb_queue_tail(&txqi->frags, skb);
+ } else {
+ flow_idx = fq_flow_idx(fq, skb);
+ fq_tin_enqueue(fq, tin, flow_idx, skb,
+ fq_skb_free_func);
+ }
+ spin_unlock_bh(&fq->lock);
}
static bool fq_vlan_filter_func(struct fq *fq, struct fq_tin *tin,
@@ -1445,10 +1505,10 @@ void ieee80211_txq_init(struct ieee80211_sub_if_data *sdata,
struct txq_info *txqi, int tid)
{
fq_tin_init(&txqi->tin);
- fq_flow_init(&txqi->def_flow);
codel_vars_init(&txqi->def_cvars);
codel_stats_init(&txqi->cstats);
__skb_queue_head_init(&txqi->frags);
+ INIT_LIST_HEAD(&txqi->schedule_order);
txqi->txq.vif = &sdata->vif;
@@ -1487,11 +1547,17 @@ void ieee80211_txq_purge(struct ieee80211_local *local,
struct fq *fq = &local->fq;
struct fq_tin *tin = &txqi->tin;
+ spin_lock_bh(&fq->lock);
fq_tin_reset(fq, tin, fq_skb_free_func);
ieee80211_purge_tx_queue(&local->hw, &txqi->frags);
+ spin_unlock_bh(&fq->lock);
+
+ spin_lock_bh(&local->active_txq_lock[txqi->txq.ac]);
+ list_del_init(&txqi->schedule_order);
+ spin_unlock_bh(&local->active_txq_lock[txqi->txq.ac]);
}
-void ieee80211_txq_set_params(struct ieee80211_local *local)
+void ieee80211_txq_set_params(struct ieee80211_local *local, int radio_idx)
{
if (local->hw.wiphy->txq_limit)
local->fq.limit = local->hw.wiphy->txq_limit;
@@ -1517,9 +1583,6 @@ int ieee80211_txq_setup_flows(struct ieee80211_local *local)
bool supp_vht = false;
enum nl80211_band band;
- if (!local->ops->wake_tx_queue)
- return 0;
-
ret = fq_init(fq, 4096);
if (ret)
return ret;
@@ -1546,8 +1609,8 @@ int ieee80211_txq_setup_flows(struct ieee80211_local *local)
local->cparams.target = MS2TIME(20);
local->cparams.ecn = true;
- local->cvars = kcalloc(fq->flows_cnt, sizeof(local->cvars[0]),
- GFP_KERNEL);
+ local->cvars = kvcalloc(fq->flows_cnt, sizeof(local->cvars[0]),
+ GFP_KERNEL);
if (!local->cvars) {
spin_lock_bh(&fq->lock);
fq_reset(fq, fq_skb_free_func);
@@ -1558,7 +1621,7 @@ int ieee80211_txq_setup_flows(struct ieee80211_local *local)
for (i = 0; i < fq->flows_cnt; i++)
codel_vars_init(&local->cvars[i]);
- ieee80211_txq_set_params(local);
+ ieee80211_txq_set_params(local, -1);
return 0;
}
@@ -1567,10 +1630,7 @@ void ieee80211_txq_teardown_flows(struct ieee80211_local *local)
{
struct fq *fq = &local->fq;
- if (!local->ops->wake_tx_queue)
- return;
-
- kfree(local->cvars);
+ kvfree(local->cvars);
local->cvars = NULL;
spin_lock_bh(&fq->lock);
@@ -1583,12 +1643,10 @@ static bool ieee80211_queue_skb(struct ieee80211_local *local,
struct sta_info *sta,
struct sk_buff *skb)
{
- struct fq *fq = &local->fq;
struct ieee80211_vif *vif;
struct txq_info *txqi;
- if (!local->ops->wake_tx_queue ||
- sdata->vif.type == NL80211_IFTYPE_MONITOR)
+ if (sdata->vif.type == NL80211_IFTYPE_MONITOR)
return false;
if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
@@ -1601,18 +1659,16 @@ static bool ieee80211_queue_skb(struct ieee80211_local *local,
if (!txqi)
return false;
- spin_lock_bh(&fq->lock);
ieee80211_txq_enqueue(local, txqi, skb);
- spin_unlock_bh(&fq->lock);
- drv_wake_tx_queue(local, txqi);
+ schedule_and_wake_txq(local, txqi);
return true;
}
static bool ieee80211_tx_frags(struct ieee80211_local *local,
struct ieee80211_vif *vif,
- struct ieee80211_sta *sta,
+ struct sta_info *sta,
struct sk_buff_head *skbs,
bool txpending)
{
@@ -1674,7 +1730,7 @@ static bool ieee80211_tx_frags(struct ieee80211_local *local,
spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
info->control.vif = vif;
- control.sta = sta;
+ control.sta = sta ? &sta->sta : NULL;
__skb_unlink(skb, skbs);
drv_tx(local, &control, skb);
@@ -1687,40 +1743,33 @@ static bool ieee80211_tx_frags(struct ieee80211_local *local,
* Returns false if the frame couldn't be transmitted but was queued instead.
*/
static bool __ieee80211_tx(struct ieee80211_local *local,
- struct sk_buff_head *skbs, int led_len,
- struct sta_info *sta, bool txpending)
+ struct sk_buff_head *skbs, struct sta_info *sta,
+ bool txpending)
{
struct ieee80211_tx_info *info;
struct ieee80211_sub_if_data *sdata;
struct ieee80211_vif *vif;
- struct ieee80211_sta *pubsta;
struct sk_buff *skb;
- bool result = true;
- __le16 fc;
+ bool result;
if (WARN_ON(skb_queue_empty(skbs)))
return true;
skb = skb_peek(skbs);
- fc = ((struct ieee80211_hdr *)skb->data)->frame_control;
info = IEEE80211_SKB_CB(skb);
sdata = vif_to_sdata(info->control.vif);
if (sta && !sta->uploaded)
sta = NULL;
- if (sta)
- pubsta = &sta->sta;
- else
- pubsta = NULL;
-
switch (sdata->vif.type) {
case NL80211_IFTYPE_MONITOR:
- if (sdata->u.mntr.flags & MONITOR_FLAG_ACTIVE) {
+ if ((sdata->u.mntr.flags & MONITOR_FLAG_ACTIVE) ||
+ ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR)) {
vif = &sdata->vif;
break;
}
sdata = rcu_dereference(local->monitor_sdata);
- if (sdata) {
+ if (sdata && ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF)) {
vif = &sdata->vif;
info->hw_queue =
vif->hw_queue[skb_get_queue_mapping(skb)];
@@ -1733,16 +1782,13 @@ static bool __ieee80211_tx(struct ieee80211_local *local,
case NL80211_IFTYPE_AP_VLAN:
sdata = container_of(sdata->bss,
struct ieee80211_sub_if_data, u.ap);
- /* fall through */
+ fallthrough;
default:
vif = &sdata->vif;
break;
}
- result = ieee80211_tx_frags(local, vif, pubsta, skbs,
- txpending);
-
- ieee80211_tpt_led_trig_tx(local, fc, led_len);
+ result = ieee80211_tx_frags(local, vif, sta, skbs, txpending);
WARN_ON_ONCE(!skb_queue_empty(skbs));
@@ -1773,12 +1819,10 @@ static int invoke_tx_handlers_early(struct ieee80211_tx_data *tx)
CALL_TXH(ieee80211_tx_h_ps_buf);
CALL_TXH(ieee80211_tx_h_check_control_port_protocol);
CALL_TXH(ieee80211_tx_h_select_key);
- if (!ieee80211_hw_check(&tx->local->hw, HAS_RATE_CONTROL))
- CALL_TXH(ieee80211_tx_h_rate_ctrl);
txh_done:
if (unlikely(res == TX_DROP)) {
- I802_DEBUG_INC(tx->local->tx_handlers_drop);
+ tx->sdata->tx_handlers_drop++;
if (tx->skb)
ieee80211_free_txskb(&tx->local->hw, tx->skb);
else
@@ -1801,6 +1845,9 @@ static int invoke_tx_handlers_late(struct ieee80211_tx_data *tx)
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb);
ieee80211_tx_result res = TX_CONTINUE;
+ if (!ieee80211_hw_check(&tx->local->hw, HAS_RATE_CONTROL))
+ CALL_TXH(ieee80211_tx_h_rate_ctrl);
+
if (unlikely(info->flags & IEEE80211_TX_INTFL_RETRANSMISSION)) {
__skb_queue_tail(&tx->skbs, tx->skb);
tx->skb = NULL;
@@ -1819,7 +1866,7 @@ static int invoke_tx_handlers_late(struct ieee80211_tx_data *tx)
txh_done:
if (unlikely(res == TX_DROP)) {
- I802_DEBUG_INC(tx->local->tx_handlers_drop);
+ tx->sdata->tx_handlers_drop++;
if (tx->skb)
ieee80211_free_txskb(&tx->local->hw, tx->skb);
else
@@ -1885,14 +1932,13 @@ EXPORT_SYMBOL(ieee80211_tx_prepare_skb);
*/
static bool ieee80211_tx(struct ieee80211_sub_if_data *sdata,
struct sta_info *sta, struct sk_buff *skb,
- bool txpending, u32 txdata_flags)
+ bool txpending)
{
struct ieee80211_local *local = sdata->local;
struct ieee80211_tx_data tx;
ieee80211_tx_result res_prepare;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
bool result = true;
- int led_len;
if (unlikely(skb->len < 10)) {
dev_kfree_skb(skb);
@@ -1900,13 +1946,11 @@ static bool ieee80211_tx(struct ieee80211_sub_if_data *sdata,
}
/* initialises tx */
- led_len = skb->len;
res_prepare = ieee80211_tx_prepare(sdata, &tx, sta, skb);
- tx.flags |= txdata_flags;
-
if (unlikely(res_prepare == TX_DROP)) {
ieee80211_free_txskb(&local->hw, skb);
+ tx.sdata->tx_handlers_drop++;
return true;
} else if (unlikely(res_prepare == TX_QUEUED)) {
return true;
@@ -1925,22 +1969,33 @@ static bool ieee80211_tx(struct ieee80211_sub_if_data *sdata,
return true;
if (!invoke_tx_handlers_late(&tx))
- result = __ieee80211_tx(local, &tx.skbs, led_len,
- tx.sta, txpending);
+ result = __ieee80211_tx(local, &tx.skbs, tx.sta, txpending);
return result;
}
/* device xmit handlers */
+enum ieee80211_encrypt {
+ ENCRYPT_NO,
+ ENCRYPT_MGMT,
+ ENCRYPT_DATA,
+};
+
static int ieee80211_skb_resize(struct ieee80211_sub_if_data *sdata,
struct sk_buff *skb,
- int head_need, bool may_encrypt)
+ int head_need,
+ enum ieee80211_encrypt encrypt)
{
struct ieee80211_local *local = sdata->local;
+ bool enc_tailroom;
int tail_need = 0;
- if (may_encrypt && sdata->crypto_tx_tailroom_needed_cnt) {
+ enc_tailroom = encrypt == ENCRYPT_MGMT ||
+ (encrypt == ENCRYPT_DATA &&
+ sdata->crypto_tx_tailroom_needed_cnt);
+
+ if (enc_tailroom) {
tail_need = IEEE80211_ENCRYPT_TAILROOM;
tail_need -= skb_tailroom(skb);
tail_need = max_t(int, tail_need, 0);
@@ -1948,8 +2003,7 @@ static int ieee80211_skb_resize(struct ieee80211_sub_if_data *sdata,
if (skb_cloned(skb) &&
(!ieee80211_hw_check(&local->hw, SUPPORTS_CLONED_SKBS) ||
- !skb_clone_writable(skb, ETH_HLEN) ||
- (may_encrypt && sdata->crypto_tx_tailroom_needed_cnt)))
+ !skb_clone_writable(skb, ETH_HLEN) || enc_tailroom))
I802_DEBUG_INC(local->tx_expand_skb_head_cloned);
else if (head_need || tail_need)
I802_DEBUG_INC(local->tx_expand_skb_head);
@@ -1966,28 +2020,33 @@ static int ieee80211_skb_resize(struct ieee80211_sub_if_data *sdata,
}
void ieee80211_xmit(struct ieee80211_sub_if_data *sdata,
- struct sta_info *sta, struct sk_buff *skb,
- u32 txdata_flags)
+ struct sta_info *sta, struct sk_buff *skb)
{
struct ieee80211_local *local = sdata->local;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
- struct ieee80211_hdr *hdr;
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
int headroom;
- bool may_encrypt;
+ enum ieee80211_encrypt encrypt;
- may_encrypt = !(info->flags & IEEE80211_TX_INTFL_DONT_ENCRYPT);
+ if (info->flags & IEEE80211_TX_INTFL_DONT_ENCRYPT)
+ encrypt = ENCRYPT_NO;
+ else if (ieee80211_is_mgmt(hdr->frame_control))
+ encrypt = ENCRYPT_MGMT;
+ else
+ encrypt = ENCRYPT_DATA;
headroom = local->tx_headroom;
- if (may_encrypt)
- headroom += sdata->encrypt_headroom;
+ if (encrypt != ENCRYPT_NO)
+ headroom += IEEE80211_ENCRYPT_HEADROOM;
headroom -= skb_headroom(skb);
headroom = max_t(int, 0, headroom);
- if (ieee80211_skb_resize(sdata, skb, headroom, may_encrypt)) {
+ if (ieee80211_skb_resize(sdata, skb, headroom, encrypt)) {
ieee80211_free_txskb(&local->hw, skb);
return;
}
+ /* reload after potential resize */
hdr = (struct ieee80211_hdr *) skb->data;
info->control.vif = &sdata->vif;
@@ -2002,18 +2061,37 @@ void ieee80211_xmit(struct ieee80211_sub_if_data *sdata,
}
ieee80211_set_qos_hdr(sdata, skb);
- ieee80211_tx(sdata, sta, skb, false, txdata_flags);
+ ieee80211_tx(sdata, sta, skb, false);
+}
+
+static bool ieee80211_validate_radiotap_len(struct sk_buff *skb)
+{
+ struct ieee80211_radiotap_header *rthdr =
+ (struct ieee80211_radiotap_header *)skb->data;
+
+ /* check for not even having the fixed radiotap header part */
+ if (unlikely(skb->len < sizeof(struct ieee80211_radiotap_header)))
+ return false; /* too short to be possibly valid */
+
+ /* is it a header version we can trust to find length from? */
+ if (unlikely(rthdr->it_version))
+ return false; /* only version 0 is supported */
+
+ /* does the skb contain enough to deliver on the alleged length? */
+ if (unlikely(skb->len < ieee80211_get_radiotap_len(skb->data)))
+ return false; /* skb too short for claimed rt header extent */
+
+ return true;
}
-static bool ieee80211_parse_tx_radiotap(struct ieee80211_local *local,
- struct sk_buff *skb)
+bool ieee80211_parse_tx_radiotap(struct sk_buff *skb,
+ struct net_device *dev)
{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
struct ieee80211_radiotap_iterator iterator;
struct ieee80211_radiotap_header *rthdr =
(struct ieee80211_radiotap_header *) skb->data;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
- struct ieee80211_supported_band *sband =
- local->hw.wiphy->bands[info->band];
int ret = ieee80211_radiotap_iterator_init(&iterator, rthdr, skb->len,
NULL);
u16 txflags;
@@ -2026,6 +2104,9 @@ static bool ieee80211_parse_tx_radiotap(struct ieee80211_local *local,
u8 vht_mcs = 0, vht_nss = 0;
int i;
+ if (!ieee80211_validate_radiotap_len(skb))
+ return false;
+
info->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT |
IEEE80211_TX_CTL_DONTFRAG;
@@ -2073,6 +2154,11 @@ static bool ieee80211_parse_tx_radiotap(struct ieee80211_local *local,
txflags = get_unaligned_le16(iterator.this_arg);
if (txflags & IEEE80211_RADIOTAP_F_TX_NOACK)
info->flags |= IEEE80211_TX_CTL_NO_ACK;
+ if (txflags & IEEE80211_RADIOTAP_F_TX_NOSEQNO)
+ info->control.flags |= IEEE80211_TX_CTRL_NO_SEQNO;
+ if (txflags & IEEE80211_RADIOTAP_F_TX_ORDER)
+ info->control.flags |=
+ IEEE80211_TX_CTRL_DONT_REORDER;
break;
case IEEE80211_RADIOTAP_RATE:
@@ -2081,6 +2167,11 @@ static bool ieee80211_parse_tx_radiotap(struct ieee80211_local *local,
rate_found = true;
break;
+ case IEEE80211_RADIOTAP_ANTENNA:
+ /* this can appear multiple times, keep a bitmap */
+ info->control.antennas |= BIT(*iterator.this_arg);
+ break;
+
case IEEE80211_RADIOTAP_DATA_RETRIES:
rate_retries = *iterator.this_arg;
break;
@@ -2103,6 +2194,19 @@ static bool ieee80211_parse_tx_radiotap(struct ieee80211_local *local,
if (mcs_known & IEEE80211_RADIOTAP_MCS_HAVE_BW &&
mcs_bw == IEEE80211_RADIOTAP_MCS_BW_40)
rate_flags |= IEEE80211_TX_RC_40_MHZ_WIDTH;
+
+ if (mcs_known & IEEE80211_RADIOTAP_MCS_HAVE_FEC &&
+ mcs_flags & IEEE80211_RADIOTAP_MCS_FEC_LDPC)
+ info->flags |= IEEE80211_TX_CTL_LDPC;
+
+ if (mcs_known & IEEE80211_RADIOTAP_MCS_HAVE_STBC) {
+ u8 stbc = u8_get_bits(mcs_flags,
+ IEEE80211_RADIOTAP_MCS_STBC_MASK);
+
+ info->flags |=
+ u32_encode_bits(stbc,
+ IEEE80211_TX_CTL_STBC);
+ }
break;
case IEEE80211_RADIOTAP_VHT:
@@ -2128,12 +2232,16 @@ static bool ieee80211_parse_tx_radiotap(struct ieee80211_local *local,
}
vht_mcs = iterator.this_arg[4] >> 4;
+ if (vht_mcs > 11)
+ vht_mcs = 0;
vht_nss = iterator.this_arg[4] & 0xF;
+ if (!vht_nss || vht_nss > 8)
+ vht_nss = 1;
break;
/*
* Please update the file
- * Documentation/networking/mac80211-injection.txt
+ * Documentation/networking/mac80211-injection.rst
* when parsing new fields here.
*/
@@ -2146,6 +2254,9 @@ static bool ieee80211_parse_tx_radiotap(struct ieee80211_local *local,
return false;
if (rate_found) {
+ struct ieee80211_supported_band *sband =
+ local->hw.wiphy->bands[info->band];
+
info->control.flags |= IEEE80211_TX_CTRL_RATE_INJECT;
for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
@@ -2155,11 +2266,20 @@ static bool ieee80211_parse_tx_radiotap(struct ieee80211_local *local,
}
if (rate_flags & IEEE80211_TX_RC_MCS) {
+ /* reset antennas if not enough */
+ if (IEEE80211_HT_MCS_CHAINS(rate) >
+ hweight8(info->control.antennas))
+ info->control.antennas = 0;
+
info->control.rates[0].idx = rate;
} else if (rate_flags & IEEE80211_TX_RC_VHT_MCS) {
+ /* reset antennas if not enough */
+ if (vht_nss > hweight8(info->control.antennas))
+ info->control.antennas = 0;
+
ieee80211_rate_set_vht(info->control.rates, vht_mcs,
vht_nss);
- } else {
+ } else if (sband) {
for (i = 0; i < sband->n_bitrates; i++) {
if (rate * 5 != sband->bitrates[i].bitrate)
continue;
@@ -2177,13 +2297,6 @@ static bool ieee80211_parse_tx_radiotap(struct ieee80211_local *local,
local->hw.max_rate_tries);
}
- /*
- * remove the radiotap header
- * iterator->_max_length was sanity-checked against
- * skb->len by iterator init
- */
- skb_pull(skb, iterator._max_length);
-
return true;
}
@@ -2192,8 +2305,6 @@ netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
{
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
struct ieee80211_chanctx_conf *chanctx_conf;
- struct ieee80211_radiotap_header *prthdr =
- (struct ieee80211_radiotap_header *)skb->data;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
struct ieee80211_hdr *hdr;
struct ieee80211_sub_if_data *tmp_sdata, *sdata;
@@ -2201,20 +2312,20 @@ netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
u16 len_rthdr;
int hdrlen;
- /* check for not even having the fixed radiotap header part */
- if (unlikely(skb->len < sizeof(struct ieee80211_radiotap_header)))
- goto fail; /* too short to be possibly valid */
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ if (unlikely(!ieee80211_sdata_running(sdata)))
+ goto fail;
- /* is it a header version we can trust to find length from? */
- if (unlikely(prthdr->it_version))
- goto fail; /* only version 0 is supported */
+ memset(info, 0, sizeof(*info));
+ info->flags = IEEE80211_TX_CTL_REQ_TX_STATUS |
+ IEEE80211_TX_CTL_INJECTED;
- /* then there must be a radiotap header with a length we can use */
- len_rthdr = ieee80211_get_radiotap_len(skb->data);
+ /* Sanity-check the length of the radiotap header */
+ if (!ieee80211_validate_radiotap_len(skb))
+ goto fail;
- /* does the skb contain enough to deliver on the alleged length? */
- if (unlikely(skb->len < len_rthdr))
- goto fail; /* skb too short for claimed rt header extent */
+ /* we now know there is a radiotap header with a length we can use */
+ len_rthdr = ieee80211_get_radiotap_len(skb->data);
/*
* fix up the pointers accounting for the radiotap
@@ -2252,11 +2363,6 @@ netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
payload[7]);
}
- memset(info, 0, sizeof(*info));
-
- info->flags = IEEE80211_TX_CTL_REQ_TX_STATUS |
- IEEE80211_TX_CTL_INJECTED;
-
rcu_read_lock();
/*
@@ -2264,17 +2370,16 @@ netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
* we handle as though they are non-injected frames.
* This code here isn't entirely correct, the local MAC address
* isn't always enough to find the interface to use; for proper
- * VLAN/WDS support we will need a different mechanism (which
- * likely isn't going to be monitor interfaces).
+ * VLAN support we have an nl80211-based mechanism.
+ *
+ * This is necessary, for example, for old hostapd versions that
+ * don't use nl80211-based management TX/RX.
*/
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
list_for_each_entry_rcu(tmp_sdata, &local->interfaces, list) {
if (!ieee80211_sdata_running(tmp_sdata))
continue;
if (tmp_sdata->vif.type == NL80211_IFTYPE_MONITOR ||
- tmp_sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
- tmp_sdata->vif.type == NL80211_IFTYPE_WDS)
+ tmp_sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
continue;
if (ether_addr_equal(tmp_sdata->vif.addr, hdr->addr2)) {
sdata = tmp_sdata;
@@ -2282,22 +2387,28 @@ netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
}
}
- chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
+ chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf);
if (!chanctx_conf) {
tmp_sdata = rcu_dereference(local->monitor_sdata);
if (tmp_sdata)
chanctx_conf =
- rcu_dereference(tmp_sdata->vif.chanctx_conf);
+ rcu_dereference(tmp_sdata->vif.bss_conf.chanctx_conf);
}
if (chanctx_conf)
chandef = &chanctx_conf->def;
- else if (!local->use_chanctx)
- chandef = &local->_oper_chandef;
else
goto fail_rcu;
/*
+ * If driver/HW supports IEEE80211_CHAN_CAN_MONITOR we still
+ * shouldn't transmit on disabled channels.
+ */
+ if (!cfg80211_chandef_usable(local->hw.wiphy, chandef,
+ IEEE80211_CHAN_DISABLED))
+ goto fail_rcu;
+
+ /*
* Frame injection is not allowed if beaconing is not allowed
* or if we need radar detection. Beaconing is usually not allowed when
* the mode or operation (Adhoc, AP, Mesh) does not support DFS.
@@ -2319,11 +2430,27 @@ netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
info->band = chandef->chan->band;
- /* process and remove the injection radiotap header */
- if (!ieee80211_parse_tx_radiotap(local, skb))
+ /* Initialize skb->priority according to frame type and TID class,
+ * with respect to the sub interface that the frame will actually
+ * be transmitted on. If the DONT_REORDER flag is set, the original
+ * skb-priority is preserved to assure frames injected with this
+ * flag are not reordered relative to each other.
+ */
+ ieee80211_select_queue_80211(sdata, skb, hdr);
+ skb_set_queue_mapping(skb, ieee80211_ac_from_tid(skb->priority));
+
+ /*
+ * Process the radiotap header. This will now take into account the
+ * selected chandef above to accurately set injection rates and
+ * retransmissions.
+ */
+ if (!ieee80211_parse_tx_radiotap(skb, dev))
goto fail_rcu;
- ieee80211_xmit(sdata, NULL, skb, 0);
+ /* remove the injection radiotap header */
+ skb_pull(skb, len_rthdr);
+
+ ieee80211_xmit(sdata, NULL, skb);
rcu_read_unlock();
return NETDEV_TX_OK;
@@ -2344,9 +2471,9 @@ static inline bool ieee80211_is_tdls_setup(struct sk_buff *skb)
skb->data[14] == WLAN_TDLS_SNAP_RFTYPE;
}
-static int ieee80211_lookup_ra_sta(struct ieee80211_sub_if_data *sdata,
- struct sk_buff *skb,
- struct sta_info **sta_out)
+int ieee80211_lookup_ra_sta(struct ieee80211_sub_if_data *sdata,
+ struct sk_buff *skb,
+ struct sta_info **sta_out)
{
struct sta_info *sta;
@@ -2359,7 +2486,7 @@ static int ieee80211_lookup_ra_sta(struct ieee80211_sub_if_data *sdata,
} else if (sdata->wdev.use_4addr) {
return -ENOLINK;
}
- /* fall through */
+ fallthrough;
case NL80211_IFTYPE_AP:
case NL80211_IFTYPE_OCB:
case NL80211_IFTYPE_ADHOC:
@@ -2369,9 +2496,6 @@ static int ieee80211_lookup_ra_sta(struct ieee80211_sub_if_data *sdata,
}
sta = sta_info_get_bss(sdata, skb->data);
break;
- case NL80211_IFTYPE_WDS:
- sta = sta_info_get(sdata, sdata->u.wds.remote_addr);
- break;
#ifdef CONFIG_MAC80211_MESH
case NL80211_IFTYPE_MESH_POINT:
/* determined much later */
@@ -2401,7 +2525,7 @@ static int ieee80211_lookup_ra_sta(struct ieee80211_sub_if_data *sdata,
}
- sta = sta_info_get(sdata, sdata->u.mgd.bssid);
+ sta = sta_info_get(sdata, sdata->vif.cfg.ap_addr);
if (!sta)
return -ENOLINK;
break;
@@ -2413,11 +2537,51 @@ static int ieee80211_lookup_ra_sta(struct ieee80211_sub_if_data *sdata,
return 0;
}
+static u16 ieee80211_store_ack_skb(struct ieee80211_local *local,
+ struct sk_buff *skb,
+ u32 *info_flags,
+ u64 *cookie)
+{
+ struct sk_buff *ack_skb;
+ u16 info_id = 0;
+
+ if (skb->sk)
+ ack_skb = skb_clone_sk(skb);
+ else
+ ack_skb = skb_clone(skb, GFP_ATOMIC);
+
+ if (ack_skb) {
+ unsigned long flags;
+ int id;
+
+ spin_lock_irqsave(&local->ack_status_lock, flags);
+ id = idr_alloc(&local->ack_status_frames, ack_skb,
+ 1, 0x2000, GFP_ATOMIC);
+ spin_unlock_irqrestore(&local->ack_status_lock, flags);
+
+ if (id >= 0) {
+ info_id = id;
+ *info_flags |= IEEE80211_TX_CTL_REQ_TX_STATUS;
+ if (cookie) {
+ *cookie = ieee80211_mgmt_tx_cookie(local);
+ IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie;
+ }
+ } else {
+ kfree_skb(ack_skb);
+ }
+ }
+
+ return info_id;
+}
+
/**
* ieee80211_build_hdr - build 802.11 header in the given frame
* @sdata: virtual interface to build the header for
* @skb: the skb to build the header in
* @info_flags: skb flags to set
+ * @sta: the station pointer
+ * @ctrl_flags: info control flags to set
+ * @cookie: cookie pointer to fill (if not %NULL)
*
* This function takes the skb with 802.3 header and reformats the header to
* the appropriate IEEE 802.11 header based on which interface the packet is
@@ -2433,7 +2597,8 @@ static int ieee80211_lookup_ra_sta(struct ieee80211_sub_if_data *sdata,
*/
static struct sk_buff *ieee80211_build_hdr(struct ieee80211_sub_if_data *sdata,
struct sk_buff *skb, u32 info_flags,
- struct sta_info *sta)
+ struct sta_info *sta, u32 ctrl_flags,
+ u64 *cookie)
{
struct ieee80211_local *local = sdata->local;
struct ieee80211_tx_info *info;
@@ -2449,19 +2614,28 @@ static struct sk_buff *ieee80211_build_hdr(struct ieee80211_sub_if_data *sdata,
bool tdls_peer;
bool multicast;
u16 info_id = 0;
- struct ieee80211_chanctx_conf *chanctx_conf;
- struct ieee80211_sub_if_data *ap_sdata;
+ struct ieee80211_chanctx_conf *chanctx_conf = NULL;
enum nl80211_band band;
int ret;
+ u8 link_id = u32_get_bits(ctrl_flags, IEEE80211_TX_CTRL_MLO_LINK);
if (IS_ERR(sta))
sta = NULL;
+#ifdef CONFIG_MAC80211_DEBUGFS
+ if (local->force_tx_status)
+ info_flags |= IEEE80211_TX_CTL_REQ_TX_STATUS;
+#endif
+
/* convert Ethernet header to proper 802.11 header (based on
* operation mode) */
ethertype = (skb->data[12] << 8) | skb->data[13];
fc = cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_DATA);
+ if (!ieee80211_vif_is_mld(&sdata->vif))
+ chanctx_conf =
+ rcu_dereference(sdata->vif.bss_conf.chanctx_conf);
+
switch (sdata->vif.type) {
case NL80211_IFTYPE_AP_VLAN:
if (sdata->wdev.use_4addr) {
@@ -2475,45 +2649,51 @@ static struct sk_buff *ieee80211_build_hdr(struct ieee80211_sub_if_data *sdata,
authorized = test_sta_flag(sta, WLAN_STA_AUTHORIZED);
wme_sta = sta->sta.wme;
}
- ap_sdata = container_of(sdata->bss, struct ieee80211_sub_if_data,
- u.ap);
- chanctx_conf = rcu_dereference(ap_sdata->vif.chanctx_conf);
- if (!chanctx_conf) {
- ret = -ENOTCONN;
- goto free;
+ if (!ieee80211_vif_is_mld(&sdata->vif)) {
+ struct ieee80211_sub_if_data *ap_sdata;
+
+ /* override chanctx_conf from AP (we don't have one) */
+ ap_sdata = container_of(sdata->bss,
+ struct ieee80211_sub_if_data,
+ u.ap);
+ chanctx_conf =
+ rcu_dereference(ap_sdata->vif.bss_conf.chanctx_conf);
}
- band = chanctx_conf->def.chan->band;
if (sdata->wdev.use_4addr)
break;
- /* fall through */
+ fallthrough;
case NL80211_IFTYPE_AP:
- if (sdata->vif.type == NL80211_IFTYPE_AP)
- chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
- if (!chanctx_conf) {
- ret = -ENOTCONN;
- goto free;
- }
fc |= cpu_to_le16(IEEE80211_FCTL_FROMDS);
/* DA BSSID SA */
memcpy(hdr.addr1, skb->data, ETH_ALEN);
- memcpy(hdr.addr2, sdata->vif.addr, ETH_ALEN);
+
+ if (ieee80211_vif_is_mld(&sdata->vif) && sta && !sta->sta.mlo) {
+ struct ieee80211_link_data *link;
+
+ link_id = sta->deflink.link_id;
+ link = rcu_dereference(sdata->link[link_id]);
+ if (WARN_ON(!link)) {
+ ret = -ENOLINK;
+ goto free;
+ }
+ memcpy(hdr.addr2, link->conf->addr, ETH_ALEN);
+ } else if (link_id == IEEE80211_LINK_UNSPECIFIED ||
+ (sta && sta->sta.mlo)) {
+ memcpy(hdr.addr2, sdata->vif.addr, ETH_ALEN);
+ } else {
+ struct ieee80211_bss_conf *conf;
+
+ conf = rcu_dereference(sdata->vif.link_conf[link_id]);
+ if (unlikely(!conf)) {
+ ret = -ENOLINK;
+ goto free;
+ }
+
+ memcpy(hdr.addr2, conf->addr, ETH_ALEN);
+ }
+
memcpy(hdr.addr3, skb->data + ETH_ALEN, ETH_ALEN);
hdrlen = 24;
- band = chanctx_conf->def.chan->band;
- break;
- case NL80211_IFTYPE_WDS:
- fc |= cpu_to_le16(IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS);
- /* RA TA DA SA */
- memcpy(hdr.addr1, sdata->u.wds.remote_addr, ETH_ALEN);
- memcpy(hdr.addr2, sdata->vif.addr, ETH_ALEN);
- memcpy(hdr.addr3, skb->data, ETH_ALEN);
- memcpy(hdr.addr4, skb->data + ETH_ALEN, ETH_ALEN);
- hdrlen = 30;
- /*
- * This is the exception! WDS style interfaces are prohibited
- * when channel contexts are in used so this must be valid
- */
- band = local->hw.conf.chandef.chan->band;
break;
#ifdef CONFIG_MAC80211_MESH
case NL80211_IFTYPE_MESH_POINT:
@@ -2581,12 +2761,13 @@ static struct sk_buff *ieee80211_build_hdr(struct ieee80211_sub_if_data *sdata,
skb->data + ETH_ALEN);
}
- chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
- if (!chanctx_conf) {
- ret = -ENOTCONN;
- goto free;
- }
- band = chanctx_conf->def.chan->band;
+
+ /* For injected frames, fill RA right away as nexthop lookup
+ * will be skipped.
+ */
+ if ((ctrl_flags & IEEE80211_TX_CTRL_SKIP_MPATH_LOOKUP) &&
+ is_zero_ether_addr(hdr.addr1))
+ memcpy(hdr.addr1, skb->data, ETH_ALEN);
break;
#endif
case NL80211_IFTYPE_STATION:
@@ -2594,17 +2775,26 @@ static struct sk_buff *ieee80211_build_hdr(struct ieee80211_sub_if_data *sdata,
tdls_peer = test_sta_flag(sta, WLAN_STA_TDLS_PEER);
if (tdls_peer) {
+ /* For TDLS only one link can be valid with peer STA */
+ int tdls_link_id = ieee80211_tdls_sta_link_id(sta);
+ struct ieee80211_link_data *link;
+
/* DA SA BSSID */
memcpy(hdr.addr1, skb->data, ETH_ALEN);
memcpy(hdr.addr2, skb->data + ETH_ALEN, ETH_ALEN);
- memcpy(hdr.addr3, sdata->u.mgd.bssid, ETH_ALEN);
+ link = rcu_dereference(sdata->link[tdls_link_id]);
+ if (WARN_ON_ONCE(!link)) {
+ ret = -EINVAL;
+ goto free;
+ }
+ memcpy(hdr.addr3, link->u.mgd.bssid, ETH_ALEN);
hdrlen = 24;
} else if (sdata->u.mgd.use_4addr &&
cpu_to_be16(ethertype) != sdata->control_port_protocol) {
fc |= cpu_to_le16(IEEE80211_FCTL_FROMDS |
IEEE80211_FCTL_TODS);
/* RA TA DA SA */
- memcpy(hdr.addr1, sdata->u.mgd.bssid, ETH_ALEN);
+ memcpy(hdr.addr1, sdata->deflink.u.mgd.bssid, ETH_ALEN);
memcpy(hdr.addr2, sdata->vif.addr, ETH_ALEN);
memcpy(hdr.addr3, skb->data, ETH_ALEN);
memcpy(hdr.addr4, skb->data + ETH_ALEN, ETH_ALEN);
@@ -2612,17 +2802,11 @@ static struct sk_buff *ieee80211_build_hdr(struct ieee80211_sub_if_data *sdata,
} else {
fc |= cpu_to_le16(IEEE80211_FCTL_TODS);
/* BSSID SA DA */
- memcpy(hdr.addr1, sdata->u.mgd.bssid, ETH_ALEN);
+ memcpy(hdr.addr1, sdata->vif.cfg.ap_addr, ETH_ALEN);
memcpy(hdr.addr2, skb->data + ETH_ALEN, ETH_ALEN);
memcpy(hdr.addr3, skb->data, ETH_ALEN);
hdrlen = 24;
}
- chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
- if (!chanctx_conf) {
- ret = -ENOTCONN;
- goto free;
- }
- band = chanctx_conf->def.chan->band;
break;
case NL80211_IFTYPE_OCB:
/* DA SA BSSID */
@@ -2630,12 +2814,6 @@ static struct sk_buff *ieee80211_build_hdr(struct ieee80211_sub_if_data *sdata,
memcpy(hdr.addr2, skb->data + ETH_ALEN, ETH_ALEN);
eth_broadcast_addr(hdr.addr3);
hdrlen = 24;
- chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
- if (!chanctx_conf) {
- ret = -ENOTCONN;
- goto free;
- }
- band = chanctx_conf->def.chan->band;
break;
case NL80211_IFTYPE_ADHOC:
/* DA SA BSSID */
@@ -2643,18 +2821,23 @@ static struct sk_buff *ieee80211_build_hdr(struct ieee80211_sub_if_data *sdata,
memcpy(hdr.addr2, skb->data + ETH_ALEN, ETH_ALEN);
memcpy(hdr.addr3, sdata->u.ibss.bssid, ETH_ALEN);
hdrlen = 24;
- chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
- if (!chanctx_conf) {
- ret = -ENOTCONN;
- goto free;
- }
- band = chanctx_conf->def.chan->band;
break;
default:
ret = -EINVAL;
goto free;
}
+ if (!chanctx_conf) {
+ if (!ieee80211_vif_is_mld(&sdata->vif)) {
+ ret = -ENOTCONN;
+ goto free;
+ }
+ /* MLD transmissions must not rely on the band */
+ band = 0;
+ } else {
+ band = chanctx_conf->def.chan->band;
+ }
+
multicast = is_multicast_ether_addr(hdr.addr1);
/* sta is always NULL for mesh */
@@ -2680,7 +2863,7 @@ static struct sk_buff *ieee80211_build_hdr(struct ieee80211_sub_if_data *sdata,
(sdata->vif.type != NL80211_IFTYPE_OCB) &&
!multicast && !authorized &&
(cpu_to_be16(ethertype) != sdata->control_port_protocol ||
- !ether_addr_equal(sdata->vif.addr, skb->data + ETH_ALEN)))) {
+ !ieee80211_is_our_addr(sdata, skb->data + ETH_ALEN, NULL)))) {
#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
net_info_ratelimited("%s: dropped frame to %pM (unauthorized port)\n",
sdata->name, hdr.addr1);
@@ -2692,44 +2875,19 @@ static struct sk_buff *ieee80211_build_hdr(struct ieee80211_sub_if_data *sdata,
goto free;
}
- if (unlikely(!multicast && skb->sk &&
- skb_shinfo(skb)->tx_flags & SKBTX_WIFI_STATUS)) {
- struct sk_buff *ack_skb = skb_clone_sk(skb);
-
- if (ack_skb) {
- unsigned long flags;
- int id;
-
- spin_lock_irqsave(&local->ack_status_lock, flags);
- id = idr_alloc(&local->ack_status_frames, ack_skb,
- 1, 0x10000, GFP_ATOMIC);
- spin_unlock_irqrestore(&local->ack_status_lock, flags);
-
- if (id >= 0) {
- info_id = id;
- info_flags |= IEEE80211_TX_CTL_REQ_TX_STATUS;
- } else {
- kfree_skb(ack_skb);
- }
- }
- }
+ if (unlikely(!multicast &&
+ (sk_requests_wifi_status(skb->sk) ||
+ ctrl_flags & IEEE80211_TX_CTL_REQ_TX_STATUS)))
+ info_id = ieee80211_store_ack_skb(local, skb, &info_flags,
+ cookie);
/*
* If the skb is shared we need to obtain our own copy.
*/
- if (skb_shared(skb)) {
- struct sk_buff *tmp_skb = skb;
-
- /* can't happen -- skb is a clone if info_id != 0 */
- WARN_ON(info_id);
-
- skb = skb_clone(skb, GFP_ATOMIC);
- kfree_skb(tmp_skb);
-
- if (!skb) {
- ret = -ENOMEM;
- goto free;
- }
+ skb = skb_share_check(skb, GFP_ATOMIC);
+ if (unlikely(!skb)) {
+ ret = -ENOMEM;
+ goto free;
}
hdr.frame_control = fc;
@@ -2766,10 +2924,10 @@ static struct sk_buff *ieee80211_build_hdr(struct ieee80211_sub_if_data *sdata,
*/
if (head_need > 0 || skb_cloned(skb)) {
- head_need += sdata->encrypt_headroom;
+ head_need += IEEE80211_ENCRYPT_HEADROOM;
head_need += local->tx_headroom;
head_need = max_t(int, 0, head_need);
- if (ieee80211_skb_resize(sdata, skb, head_need, true)) {
+ if (ieee80211_skb_resize(sdata, skb, head_need, ENCRYPT_DATA)) {
ieee80211_free_txskb(&local->hw, skb);
skb = NULL;
return ERR_PTR(-ENOMEM);
@@ -2803,9 +2961,41 @@ static struct sk_buff *ieee80211_build_hdr(struct ieee80211_sub_if_data *sdata,
memset(info, 0, sizeof(*info));
info->flags = info_flags;
- info->ack_frame_id = info_id;
+ if (info_id) {
+ info->status_data = info_id;
+ info->status_data_idr = 1;
+ }
info->band = band;
+ if (likely(!cookie)) {
+ ctrl_flags |= u32_encode_bits(link_id,
+ IEEE80211_TX_CTRL_MLO_LINK);
+ } else {
+ unsigned int pre_conf_link_id;
+
+ /*
+ * ctrl_flags already have been set by
+ * ieee80211_tx_control_port(), here
+ * we just sanity check that
+ */
+
+ pre_conf_link_id = u32_get_bits(ctrl_flags,
+ IEEE80211_TX_CTRL_MLO_LINK);
+
+ if (pre_conf_link_id != link_id &&
+ link_id != IEEE80211_LINK_UNSPECIFIED) {
+#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
+ net_info_ratelimited("%s: dropped frame to %pM with bad link ID request (%d vs. %d)\n",
+ sdata->name, hdr.addr1,
+ pre_conf_link_id, link_id);
+#endif
+ ret = -EINVAL;
+ goto free;
+ }
+ }
+
+ info->control.flags = ctrl_flags;
+
return skb;
free:
kfree_skb(skb);
@@ -2845,6 +3035,9 @@ void ieee80211_check_fast_xmit(struct sta_info *sta)
if (!ieee80211_hw_check(&local->hw, SUPPORT_FAST_XMIT))
return;
+ if (ieee80211_vif_is_mesh(&sdata->vif))
+ mesh_fast_tx_flush_sta(sdata, sta);
+
/* Locking here protects both the pointer itself, and against concurrent
* invocations winning data access races to, e.g., the key pointer that
* is used.
@@ -2863,7 +3056,7 @@ void ieee80211_check_fast_xmit(struct sta_info *sta)
sdata->vif.type == NL80211_IFTYPE_STATION)
goto out;
- if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED))
+ if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED) || !sta->uploaded)
goto out;
if (test_sta_flag(sta, WLAN_STA_PS_STA) ||
@@ -2880,14 +3073,20 @@ void ieee80211_check_fast_xmit(struct sta_info *sta)
!ieee80211_hw_check(&local->hw, SUPPORTS_TX_FRAG))
goto out;
- rcu_read_lock();
- chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
- if (!chanctx_conf) {
+ if (!ieee80211_vif_is_mld(&sdata->vif)) {
+ rcu_read_lock();
+ chanctx_conf =
+ rcu_dereference(sdata->vif.bss_conf.chanctx_conf);
+ if (!chanctx_conf) {
+ rcu_read_unlock();
+ goto out;
+ }
+ build.band = chanctx_conf->def.chan->band;
rcu_read_unlock();
- goto out;
+ } else {
+ /* MLD transmissions must not rely on the band */
+ build.band = 0;
}
- build.band = chanctx_conf->def.chan->band;
- rcu_read_unlock();
fc = cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_DATA);
@@ -2901,10 +3100,18 @@ void ieee80211_check_fast_xmit(struct sta_info *sta)
break;
case NL80211_IFTYPE_STATION:
if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
+ /* For TDLS only one link can be valid with peer STA */
+ int tdls_link_id = ieee80211_tdls_sta_link_id(sta);
+ struct ieee80211_link_data *link;
+
/* DA SA BSSID */
build.da_offs = offsetof(struct ieee80211_hdr, addr1);
build.sa_offs = offsetof(struct ieee80211_hdr, addr2);
- memcpy(hdr->addr3, sdata->u.mgd.bssid, ETH_ALEN);
+ rcu_read_lock();
+ link = rcu_dereference(sdata->link[tdls_link_id]);
+ if (!WARN_ON_ONCE(!link))
+ memcpy(hdr->addr3, link->u.mgd.bssid, ETH_ALEN);
+ rcu_read_unlock();
build.hdr_len = 24;
break;
}
@@ -2914,7 +3121,7 @@ void ieee80211_check_fast_xmit(struct sta_info *sta)
fc |= cpu_to_le16(IEEE80211_FCTL_FROMDS |
IEEE80211_FCTL_TODS);
/* RA TA DA SA */
- memcpy(hdr->addr1, sdata->u.mgd.bssid, ETH_ALEN);
+ memcpy(hdr->addr1, sdata->deflink.u.mgd.bssid, ETH_ALEN);
memcpy(hdr->addr2, sdata->vif.addr, ETH_ALEN);
build.da_offs = offsetof(struct ieee80211_hdr, addr3);
build.sa_offs = offsetof(struct ieee80211_hdr, addr4);
@@ -2923,7 +3130,7 @@ void ieee80211_check_fast_xmit(struct sta_info *sta)
}
fc |= cpu_to_le16(IEEE80211_FCTL_TODS);
/* BSSID SA DA */
- memcpy(hdr->addr1, sdata->u.mgd.bssid, ETH_ALEN);
+ memcpy(hdr->addr1, sdata->vif.cfg.ap_addr, ETH_ALEN);
build.da_offs = offsetof(struct ieee80211_hdr, addr3);
build.sa_offs = offsetof(struct ieee80211_hdr, addr2);
build.hdr_len = 24;
@@ -2940,12 +3147,26 @@ void ieee80211_check_fast_xmit(struct sta_info *sta)
build.hdr_len = 30;
break;
}
- /* fall through */
+ fallthrough;
case NL80211_IFTYPE_AP:
fc |= cpu_to_le16(IEEE80211_FCTL_FROMDS);
/* DA BSSID SA */
build.da_offs = offsetof(struct ieee80211_hdr, addr1);
- memcpy(hdr->addr2, sdata->vif.addr, ETH_ALEN);
+ if (sta->sta.mlo || !ieee80211_vif_is_mld(&sdata->vif)) {
+ memcpy(hdr->addr2, sdata->vif.addr, ETH_ALEN);
+ } else {
+ unsigned int link_id = sta->deflink.link_id;
+ struct ieee80211_link_data *link;
+
+ rcu_read_lock();
+ link = rcu_dereference(sdata->link[link_id]);
+ if (WARN_ON(!link)) {
+ rcu_read_unlock();
+ goto out;
+ }
+ memcpy(hdr->addr2, link->conf->addr, ETH_ALEN);
+ rcu_read_unlock();
+ }
build.sa_offs = offsetof(struct ieee80211_hdr, addr3);
build.hdr_len = 24;
break;
@@ -2987,23 +3208,15 @@ void ieee80211_check_fast_xmit(struct sta_info *sta)
switch (build.key->conf.cipher) {
case WLAN_CIPHER_SUITE_CCMP:
case WLAN_CIPHER_SUITE_CCMP_256:
- /* add fixed key ID */
- if (gen_iv) {
- (build.hdr + build.hdr_len)[3] =
- 0x20 | (build.key->conf.keyidx << 6);
+ if (gen_iv)
build.pn_offs = build.hdr_len;
- }
if (gen_iv || iv_spc)
build.hdr_len += IEEE80211_CCMP_HDR_LEN;
break;
case WLAN_CIPHER_SUITE_GCMP:
case WLAN_CIPHER_SUITE_GCMP_256:
- /* add fixed key ID */
- if (gen_iv) {
- (build.hdr + build.hdr_len)[3] =
- 0x20 | (build.key->conf.keyidx << 6);
+ if (gen_iv)
build.pn_offs = build.hdr_len;
- }
if (gen_iv || iv_spc)
build.hdr_len += IEEE80211_GCMP_HDR_LEN;
break;
@@ -3034,15 +3247,6 @@ void ieee80211_check_fast_xmit(struct sta_info *sta)
/* we don't know how to generate IVs for this at all */
if (WARN_ON(gen_iv))
goto out;
- /* pure hardware keys are OK, of course */
- if (!(build.key->flags & KEY_FLAG_CIPHER_SCHEME))
- break;
- /* cipher scheme might require space allocation */
- if (iv_spc &&
- build.key->conf.iv_len > IEEE80211_FAST_XMIT_MAX_IV)
- goto out;
- if (iv_spc)
- build.hdr_len += build.key->conf.iv_len;
}
fc |= cpu_to_le16(IEEE80211_FCTL_PROTECTED);
@@ -3056,8 +3260,6 @@ void ieee80211_check_fast_xmit(struct sta_info *sta)
fast_tx = kmemdup(&build, sizeof(build), GFP_ATOMIC);
/* if the kmemdup fails, continue w/o fast_tx */
- if (!fast_tx)
- goto out;
out:
/* we might have raced against another call to this function */
@@ -3146,7 +3348,9 @@ static bool ieee80211_amsdu_prepare_head(struct ieee80211_sub_if_data *sdata,
if (info->control.flags & IEEE80211_TX_CTRL_AMSDU)
return true;
- if (!ieee80211_amsdu_realloc_pad(local, skb, sizeof(*amsdu_hdr)))
+ if (!ieee80211_amsdu_realloc_pad(local, skb,
+ sizeof(*amsdu_hdr) +
+ local->hw.extra_tx_headroom))
return false;
data = skb_push(skb, sizeof(*amsdu_hdr));
@@ -3167,7 +3371,7 @@ static bool ieee80211_amsdu_prepare_head(struct ieee80211_sub_if_data *sdata,
*/
switch (sdata->vif.type) {
case NL80211_IFTYPE_STATION:
- bssid = sdata->u.mgd.bssid;
+ bssid = sdata->vif.cfg.ap_addr;
break;
case NL80211_IFTYPE_AP:
case NL80211_IFTYPE_AP_VLAN:
@@ -3194,7 +3398,8 @@ static bool ieee80211_amsdu_prepare_head(struct ieee80211_sub_if_data *sdata,
static bool ieee80211_amsdu_aggregate(struct ieee80211_sub_if_data *sdata,
struct sta_info *sta,
struct ieee80211_fast_tx *fast_tx,
- struct sk_buff *skb)
+ struct sk_buff *skb,
+ const u8 *da, const u8 *sa)
{
struct ieee80211_local *local = sdata->local;
struct fq *fq = &local->fq;
@@ -3207,7 +3412,9 @@ static bool ieee80211_amsdu_aggregate(struct ieee80211_sub_if_data *sdata,
int subframe_len = skb->len - ETH_ALEN;
u8 max_subframes = sta->sta.max_amsdu_subframes;
int max_frags = local->hw.max_tx_fragments;
- int max_amsdu_len = sta->sta.max_amsdu_len;
+ int max_amsdu_len = sta->sta.cur->max_amsdu_len;
+ int orig_truesize;
+ u32 flow_idx;
__be16 len;
void *data;
bool ret = false;
@@ -3218,6 +3425,12 @@ static bool ieee80211_amsdu_aggregate(struct ieee80211_sub_if_data *sdata,
if (!ieee80211_hw_check(&local->hw, TX_AMSDU))
return false;
+ if (sdata->vif.offload_flags & IEEE80211_OFFLOAD_ENCAP_ENABLED)
+ return false;
+
+ if (ieee80211_vif_is_mesh(&sdata->vif))
+ return false;
+
if (skb_is_gso(skb))
return false;
@@ -3228,13 +3441,15 @@ static bool ieee80211_amsdu_aggregate(struct ieee80211_sub_if_data *sdata,
if (test_bit(IEEE80211_TXQ_NO_AMSDU, &txqi->flags))
return false;
- if (sta->sta.max_rc_amsdu_len)
+ if (sta->sta.cur->max_rc_amsdu_len)
max_amsdu_len = min_t(int, max_amsdu_len,
- sta->sta.max_rc_amsdu_len);
+ sta->sta.cur->max_rc_amsdu_len);
- if (sta->sta.max_tid_amsdu_len[tid])
+ if (sta->sta.cur->max_tid_amsdu_len[tid])
max_amsdu_len = min_t(int, max_amsdu_len,
- sta->sta.max_tid_amsdu_len[tid]);
+ sta->sta.cur->max_tid_amsdu_len[tid]);
+
+ flow_idx = fq_flow_idx(fq, skb);
spin_lock_bh(&fq->lock);
@@ -3243,11 +3458,12 @@ static bool ieee80211_amsdu_aggregate(struct ieee80211_sub_if_data *sdata,
*/
tin = &txqi->tin;
- flow = fq_flow_classify(fq, tin, skb, fq_flow_get_default_func);
+ flow = fq_flow_classify(fq, tin, flow_idx, skb);
head = skb_peek_tail(&flow->queue);
if (!head || skb_is_gso(head))
goto out;
+ orig_truesize = head->truesize;
orig_len = head->len;
if (skb->len + head->len > max_amsdu_len)
@@ -3274,6 +3490,14 @@ static bool ieee80211_amsdu_aggregate(struct ieee80211_sub_if_data *sdata,
if (!ieee80211_amsdu_prepare_head(sdata, fast_tx, head))
goto out;
+ /* If n == 2, the "while (*frag_tail)" loop above didn't execute
+ * and frag_tail should be &skb_shinfo(head)->frag_list.
+ * However, ieee80211_amsdu_prepare_head() can reallocate it.
+ * Reload frag_tail to have it pointing to the correct place.
+ */
+ if (n == 2)
+ frag_tail = &skb_shinfo(head)->frag_list;
+
/*
* Pad out the previous subframe to a multiple of 4 by adding the
* padding to the next one, that's being added. Note that head->len
@@ -3291,7 +3515,8 @@ static bool ieee80211_amsdu_aggregate(struct ieee80211_sub_if_data *sdata,
ret = true;
data = skb_push(skb, ETH_ALEN + 2);
- memmove(data, data + ETH_ALEN + 2, 2 * ETH_ALEN);
+ ether_addr_copy(data, da);
+ ether_addr_copy(data + ETH_ALEN, sa);
data += 2 * ETH_ALEN;
len = cpu_to_be16(subframe_len);
@@ -3305,11 +3530,10 @@ static bool ieee80211_amsdu_aggregate(struct ieee80211_sub_if_data *sdata,
*frag_tail = skb;
out_recalc:
+ fq->memory_usage += head->truesize - orig_truesize;
if (head->len != orig_len) {
flow->backlog += head->len - orig_len;
tin->backlog_bytes += head->len - orig_len;
-
- fq_recalc_backlog(fq, tin, flow);
}
out:
spin_unlock_bh(&fq->lock);
@@ -3321,19 +3545,25 @@ out:
* Can be called while the sta lock is held. Anything that can cause packets to
* be generated will cause deadlock!
*/
-static void ieee80211_xmit_fast_finish(struct ieee80211_sub_if_data *sdata,
- struct sta_info *sta, u8 pn_offs,
- struct ieee80211_key *key,
- struct sk_buff *skb)
+static ieee80211_tx_result
+ieee80211_xmit_fast_finish(struct ieee80211_sub_if_data *sdata,
+ struct sta_info *sta, u8 pn_offs,
+ struct ieee80211_key *key,
+ struct ieee80211_tx_data *tx)
{
+ struct sk_buff *skb = tx->skb;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
struct ieee80211_hdr *hdr = (void *)skb->data;
u8 tid = IEEE80211_NUM_TIDS;
+ if (!ieee80211_hw_check(&tx->local->hw, HAS_RATE_CONTROL) &&
+ ieee80211_tx_h_rate_ctrl(tx) != TX_CONTINUE)
+ return TX_DROP;
+
if (key)
info->control.hw_key = &key->conf;
- ieee80211_tx_stats(skb->dev, skb->len);
+ dev_sw_netstats_tx_add(skb->dev, 1, skb->len);
if (hdr->frame_control & cpu_to_le16(IEEE80211_STYPE_QOS_DATA)) {
tid = skb->priority & IEEE80211_QOS_CTL_TAG1D_MASK;
@@ -3345,18 +3575,18 @@ static void ieee80211_xmit_fast_finish(struct ieee80211_sub_if_data *sdata,
}
if (skb_shinfo(skb)->gso_size)
- sta->tx_stats.msdu[tid] +=
+ sta->deflink.tx_stats.msdu[tid] +=
DIV_ROUND_UP(skb->len, skb_shinfo(skb)->gso_size);
else
- sta->tx_stats.msdu[tid]++;
+ sta->deflink.tx_stats.msdu[tid]++;
info->hw_queue = sdata->vif.hw_queue[skb_get_queue_mapping(skb)];
/* statistics normally done by ieee80211_tx_h_stats (but that
* has to consider fragmentation, so is more complex)
*/
- sta->tx_stats.bytes[skb_get_queue_mapping(skb)] += skb->len;
- sta->tx_stats.packets[skb_get_queue_mapping(skb)]++;
+ sta->deflink.tx_stats.bytes[skb_get_queue_mapping(skb)] += skb->len;
+ sta->deflink.tx_stats.packets[skb_get_queue_mapping(skb)]++;
if (pn_offs) {
u64 pn;
@@ -3370,6 +3600,7 @@ static void ieee80211_xmit_fast_finish(struct ieee80211_sub_if_data *sdata,
pn = atomic64_inc_return(&key->conf.tx_pn);
crypto_hdr[0] = pn;
crypto_hdr[1] = pn >> 8;
+ crypto_hdr[3] = 0x20 | (key->conf.keyidx << 6);
crypto_hdr[4] = pn >> 16;
crypto_hdr[5] = pn >> 24;
crypto_hdr[6] = pn >> 32;
@@ -3377,63 +3608,83 @@ static void ieee80211_xmit_fast_finish(struct ieee80211_sub_if_data *sdata,
break;
}
}
+
+ return TX_CONTINUE;
}
-static bool ieee80211_xmit_fast(struct ieee80211_sub_if_data *sdata,
- struct sta_info *sta,
- struct ieee80211_fast_tx *fast_tx,
- struct sk_buff *skb)
+static netdev_features_t
+ieee80211_sdata_netdev_features(struct ieee80211_sub_if_data *sdata)
{
- struct ieee80211_local *local = sdata->local;
- u16 ethertype = (skb->data[12] << 8) | skb->data[13];
- int extra_head = fast_tx->hdr_len - (ETH_HLEN - 2);
- int hw_headroom = sdata->local->hw.extra_tx_headroom;
- struct ethhdr eth;
- struct ieee80211_tx_info *info;
- struct ieee80211_hdr *hdr = (void *)fast_tx->hdr;
- struct ieee80211_tx_data tx;
- ieee80211_tx_result r;
- struct tid_ampdu_tx *tid_tx = NULL;
- u8 tid = IEEE80211_NUM_TIDS;
+ if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN)
+ return sdata->vif.netdev_features;
- /* control port protocol needs a lot of special handling */
- if (cpu_to_be16(ethertype) == sdata->control_port_protocol)
- return false;
+ if (!sdata->bss)
+ return 0;
- /* only RFC 1042 SNAP */
- if (ethertype < ETH_P_802_3_MIN)
- return false;
+ sdata = container_of(sdata->bss, struct ieee80211_sub_if_data, u.ap);
+ return sdata->vif.netdev_features;
+}
- /* don't handle TX status request here either */
- if (skb->sk && skb_shinfo(skb)->tx_flags & SKBTX_WIFI_STATUS)
- return false;
+static struct sk_buff *
+ieee80211_tx_skb_fixup(struct sk_buff *skb, netdev_features_t features)
+{
+ if (skb_is_gso(skb)) {
+ struct sk_buff *segs;
- if (hdr->frame_control & cpu_to_le16(IEEE80211_STYPE_QOS_DATA)) {
- tid = skb->priority & IEEE80211_QOS_CTL_TAG1D_MASK;
- tid_tx = rcu_dereference(sta->ampdu_mlme.tid_tx[tid]);
- if (tid_tx) {
- if (!test_bit(HT_AGG_STATE_OPERATIONAL, &tid_tx->state))
- return false;
- if (tid_tx->timeout)
- tid_tx->last_tx = jiffies;
- }
+ segs = skb_gso_segment(skb, features);
+ if (!segs)
+ return skb;
+ if (IS_ERR(segs))
+ goto free;
+
+ consume_skb(skb);
+ return segs;
}
- /* after this point (skb is modified) we cannot return false */
+ if (skb_needs_linearize(skb, features) && __skb_linearize(skb))
+ goto free;
- if (skb_shared(skb)) {
- struct sk_buff *tmp_skb = skb;
+ if (skb->ip_summed == CHECKSUM_PARTIAL) {
+ int ofs = skb_checksum_start_offset(skb);
- skb = skb_clone(skb, GFP_ATOMIC);
- kfree_skb(tmp_skb);
+ if (skb->encapsulation)
+ skb_set_inner_transport_header(skb, ofs);
+ else
+ skb_set_transport_header(skb, ofs);
- if (!skb)
- return true;
+ if (skb_csum_hwoffload_help(skb, features))
+ goto free;
}
+ skb_mark_not_on_list(skb);
+ return skb;
+
+free:
+ kfree_skb(skb);
+ return NULL;
+}
+
+void __ieee80211_xmit_fast(struct ieee80211_sub_if_data *sdata,
+ struct sta_info *sta,
+ struct ieee80211_fast_tx *fast_tx,
+ struct sk_buff *skb, bool ampdu,
+ const u8 *da, const u8 *sa)
+{
+ struct ieee80211_local *local = sdata->local;
+ struct ieee80211_hdr *hdr = (void *)fast_tx->hdr;
+ struct ieee80211_tx_info *info;
+ struct ieee80211_tx_data tx;
+ ieee80211_tx_result r;
+ int hw_headroom = sdata->local->hw.extra_tx_headroom;
+ int extra_head = fast_tx->hdr_len - (ETH_HLEN - 2);
+
+ skb = skb_share_check(skb, GFP_ATOMIC);
+ if (unlikely(!skb))
+ return;
+
if ((hdr->frame_control & cpu_to_le16(IEEE80211_STYPE_QOS_DATA)) &&
- ieee80211_amsdu_aggregate(sdata, sta, fast_tx, skb))
- return true;
+ ieee80211_amsdu_aggregate(sdata, sta, fast_tx, skb, da, sa))
+ return;
/* will not be crypto-handled beyond what we do here, so use false
* as the may-encrypt argument for the resize to not account for
@@ -3442,28 +3693,32 @@ static bool ieee80211_xmit_fast(struct ieee80211_sub_if_data *sdata,
if (unlikely(ieee80211_skb_resize(sdata, skb,
max_t(int, extra_head + hw_headroom -
skb_headroom(skb), 0),
- false))) {
- kfree_skb(skb);
- return true;
- }
+ ENCRYPT_NO)))
+ goto free;
- memcpy(&eth, skb->data, ETH_HLEN - 2);
hdr = skb_push(skb, extra_head);
memcpy(skb->data, fast_tx->hdr, fast_tx->hdr_len);
- memcpy(skb->data + fast_tx->da_offs, eth.h_dest, ETH_ALEN);
- memcpy(skb->data + fast_tx->sa_offs, eth.h_source, ETH_ALEN);
+ memcpy(skb->data + fast_tx->da_offs, da, ETH_ALEN);
+ memcpy(skb->data + fast_tx->sa_offs, sa, ETH_ALEN);
info = IEEE80211_SKB_CB(skb);
memset(info, 0, sizeof(*info));
info->band = fast_tx->band;
info->control.vif = &sdata->vif;
info->flags = IEEE80211_TX_CTL_FIRST_FRAGMENT |
- IEEE80211_TX_CTL_DONTFRAG |
- (tid_tx ? IEEE80211_TX_CTL_AMPDU : 0);
- info->control.flags = IEEE80211_TX_CTRL_FAST_XMIT;
+ IEEE80211_TX_CTL_DONTFRAG;
+ info->control.flags = IEEE80211_TX_CTRL_FAST_XMIT |
+ u32_encode_bits(IEEE80211_LINK_UNSPECIFIED,
+ IEEE80211_TX_CTRL_MLO_LINK);
+
+#ifdef CONFIG_MAC80211_DEBUGFS
+ if (local->force_tx_status)
+ info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS;
+#endif
if (hdr->frame_control & cpu_to_le16(IEEE80211_STYPE_QOS_DATA)) {
- tid = skb->priority & IEEE80211_QOS_CTL_TAG1D_MASK;
+ u8 tid = skb->priority & IEEE80211_QOS_CTL_TAG1D_MASK;
+
*ieee80211_get_qos_ctl(hdr) = tid;
}
@@ -3475,31 +3730,78 @@ static bool ieee80211_xmit_fast(struct ieee80211_sub_if_data *sdata,
tx.sta = sta;
tx.key = fast_tx->key;
- if (!ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) {
- tx.skb = skb;
- r = ieee80211_tx_h_rate_ctrl(&tx);
- skb = tx.skb;
- tx.skb = NULL;
-
- if (r != TX_CONTINUE) {
- if (r != TX_QUEUED)
- kfree_skb(skb);
- return true;
- }
- }
-
if (ieee80211_queue_skb(local, sdata, sta, skb))
- return true;
+ return;
- ieee80211_xmit_fast_finish(sdata, sta, fast_tx->pn_offs,
- fast_tx->key, skb);
+ tx.skb = skb;
+ r = ieee80211_xmit_fast_finish(sdata, sta, fast_tx->pn_offs,
+ fast_tx->key, &tx);
+ tx.skb = NULL;
+ if (r == TX_DROP) {
+ tx.sdata->tx_handlers_drop++;
+ goto free;
+ }
if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
sdata = container_of(sdata->bss,
struct ieee80211_sub_if_data, u.ap);
__skb_queue_tail(&tx.skbs, skb);
- ieee80211_tx_frags(local, &sdata->vif, &sta->sta, &tx.skbs, false);
+ ieee80211_tx_frags(local, &sdata->vif, sta, &tx.skbs, false);
+ return;
+
+free:
+ kfree_skb(skb);
+}
+
+static bool ieee80211_xmit_fast(struct ieee80211_sub_if_data *sdata,
+ struct sta_info *sta,
+ struct ieee80211_fast_tx *fast_tx,
+ struct sk_buff *skb)
+{
+ u16 ethertype = (skb->data[12] << 8) | skb->data[13];
+ struct ieee80211_hdr *hdr = (void *)fast_tx->hdr;
+ struct tid_ampdu_tx *tid_tx = NULL;
+ struct sk_buff *next;
+ struct ethhdr eth;
+ u8 tid = IEEE80211_NUM_TIDS;
+
+ /* control port protocol needs a lot of special handling */
+ if (cpu_to_be16(ethertype) == sdata->control_port_protocol)
+ return false;
+
+ /* only RFC 1042 SNAP */
+ if (ethertype < ETH_P_802_3_MIN)
+ return false;
+
+ /* don't handle TX status request here either */
+ if (sk_requests_wifi_status(skb->sk))
+ return false;
+
+ if (hdr->frame_control & cpu_to_le16(IEEE80211_STYPE_QOS_DATA)) {
+ tid = skb->priority & IEEE80211_QOS_CTL_TAG1D_MASK;
+ tid_tx = rcu_dereference(sta->ampdu_mlme.tid_tx[tid]);
+ if (tid_tx) {
+ if (!test_bit(HT_AGG_STATE_OPERATIONAL, &tid_tx->state))
+ return false;
+ if (tid_tx->timeout)
+ tid_tx->last_tx = jiffies;
+ }
+ }
+
+ memcpy(&eth, skb->data, ETH_HLEN - 2);
+
+ /* after this point (skb is modified) we cannot return false */
+ skb = ieee80211_tx_skb_fixup(skb, ieee80211_sdata_netdev_features(sdata));
+ if (!skb)
+ return true;
+
+ skb_list_walk_safe(skb, skb, next) {
+ skb_mark_not_on_list(skb);
+ __ieee80211_xmit_fast(sdata, sta, fast_tx, skb, tid_tx,
+ eth.h_dest, eth.h_source);
+ }
+
return true;
}
@@ -3516,28 +3818,48 @@ struct sk_buff *ieee80211_tx_dequeue(struct ieee80211_hw *hw,
struct ieee80211_tx_data tx;
ieee80211_tx_result r;
struct ieee80211_vif *vif = txq->vif;
+ int q = vif->hw_queue[txq->ac];
+ unsigned long flags;
+ bool q_stopped;
- spin_lock_bh(&fq->lock);
+ WARN_ON_ONCE(softirq_count() == 0);
- if (test_bit(IEEE80211_TXQ_STOP, &txqi->flags) ||
- test_bit(IEEE80211_TXQ_STOP_NETIF_TX, &txqi->flags))
- goto out;
+ if (!ieee80211_txq_airtime_check(hw, txq))
+ return NULL;
- if (vif->txqs_stopped[ieee80211_ac_from_tid(txq->tid)]) {
- set_bit(IEEE80211_TXQ_STOP_NETIF_TX, &txqi->flags);
- goto out;
+begin:
+ spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
+ q_stopped = local->queue_stop_reasons[q];
+ spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
+
+ if (unlikely(q_stopped)) {
+ /* mark for waking later */
+ set_bit(IEEE80211_TXQ_DIRTY, &txqi->flags);
+ return NULL;
}
+ spin_lock_bh(&fq->lock);
+
/* Make sure fragments stay together. */
skb = __skb_dequeue(&txqi->frags);
- if (skb)
- goto out;
+ if (unlikely(skb)) {
+ if (!(IEEE80211_SKB_CB(skb)->control.flags &
+ IEEE80211_TX_INTCFL_NEED_TXPROCESSING))
+ goto out;
+ IEEE80211_SKB_CB(skb)->control.flags &=
+ ~IEEE80211_TX_INTCFL_NEED_TXPROCESSING;
+ } else {
+ if (unlikely(test_bit(IEEE80211_TXQ_STOP, &txqi->flags)))
+ goto out;
+
+ skb = fq_tin_dequeue(fq, tin, fq_tin_dequeue_func);
+ }
-begin:
- skb = fq_tin_dequeue(fq, tin, fq_tin_dequeue_func);
if (!skb)
goto out;
+ spin_unlock_bh(&fq->lock);
+
hdr = (struct ieee80211_hdr *)skb->data;
info = IEEE80211_SKB_CB(skb);
@@ -3547,13 +3869,33 @@ begin:
tx.skb = skb;
tx.sdata = vif_to_sdata(info->control.vif);
- if (txq->sta)
+ if (txq->sta) {
tx.sta = container_of(txq->sta, struct sta_info, sta);
+ /*
+ * Drop unicast frames to unauthorised stations unless they are
+ * injected frames or EAPOL frames from the local station.
+ */
+ if (unlikely(!(info->flags & IEEE80211_TX_CTL_INJECTED) &&
+ ieee80211_is_data(hdr->frame_control) &&
+ !ieee80211_vif_is_mesh(&tx.sdata->vif) &&
+ tx.sdata->vif.type != NL80211_IFTYPE_OCB &&
+ !is_multicast_ether_addr(hdr->addr1) &&
+ !test_sta_flag(tx.sta, WLAN_STA_AUTHORIZED) &&
+ (!(info->control.flags &
+ IEEE80211_TX_CTRL_PORT_CTRL_PROTO) ||
+ !ieee80211_is_our_addr(tx.sdata, hdr->addr2,
+ NULL)))) {
+ I802_DEBUG_INC(local->tx_handlers_drop_unauth_port);
+ ieee80211_free_txskb(&local->hw, skb);
+ goto begin;
+ }
+ }
/*
* The key can be removed while the packet was queued, so need to call
* this here to get the current key.
*/
+ info->control.hw_key = NULL;
r = ieee80211_tx_h_select_key(&tx);
if (r != TX_CONTINUE) {
ieee80211_free_txskb(&local->hw, skb);
@@ -3561,9 +3903,19 @@ begin:
}
if (test_bit(IEEE80211_TXQ_AMPDU, &txqi->flags))
- info->flags |= IEEE80211_TX_CTL_AMPDU;
- else
- info->flags &= ~IEEE80211_TX_CTL_AMPDU;
+ info->flags |= (IEEE80211_TX_CTL_AMPDU |
+ IEEE80211_TX_CTL_DONTFRAG);
+
+ if (info->flags & IEEE80211_TX_CTL_HW_80211_ENCAP) {
+ if (!ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) {
+ r = ieee80211_tx_h_rate_ctrl(&tx);
+ if (r != TX_CONTINUE) {
+ ieee80211_free_txskb(&local->hw, skb);
+ goto begin;
+ }
+ }
+ goto encap_out;
+ }
if (info->control.flags & IEEE80211_TX_CTRL_FAST_XMIT) {
struct sta_info *sta = container_of(txq->sta, struct sta_info,
@@ -3574,16 +3926,24 @@ begin:
(tx.key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV))
pn_offs = ieee80211_hdrlen(hdr->frame_control);
- ieee80211_xmit_fast_finish(sta->sdata, sta, pn_offs,
- tx.key, skb);
+ r = ieee80211_xmit_fast_finish(sta->sdata, sta, pn_offs,
+ tx.key, &tx);
+ if (r != TX_CONTINUE) {
+ ieee80211_free_txskb(&local->hw, skb);
+ goto begin;
+ }
} else {
if (invoke_tx_handlers_late(&tx))
goto begin;
skb = __skb_dequeue(&tx.skbs);
+ info = IEEE80211_SKB_CB(skb);
- if (!skb_queue_empty(&tx.skbs))
+ if (!skb_queue_empty(&tx.skbs)) {
+ spin_lock_bh(&fq->lock);
skb_queue_splice_tail(&tx.skbs, &txqi->frags);
+ spin_unlock_bh(&fq->lock);
+ }
}
if (skb_has_frag_list(skb) &&
@@ -3596,12 +3956,14 @@ begin:
switch (tx.sdata->vif.type) {
case NL80211_IFTYPE_MONITOR:
- if (tx.sdata->u.mntr.flags & MONITOR_FLAG_ACTIVE) {
+ if ((tx.sdata->u.mntr.flags & MONITOR_FLAG_ACTIVE) ||
+ ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR)) {
vif = &tx.sdata->vif;
break;
}
tx.sdata = rcu_dereference(local->monitor_sdata);
- if (tx.sdata) {
+ if (tx.sdata &&
+ ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF)) {
vif = &tx.sdata->vif;
info->hw_queue =
vif->hw_queue[skb_get_queue_mapping(skb)];
@@ -3609,19 +3971,39 @@ begin:
ieee80211_free_txskb(&local->hw, skb);
goto begin;
} else {
- vif = NULL;
+ info->control.vif = NULL;
+ return skb;
}
break;
case NL80211_IFTYPE_AP_VLAN:
tx.sdata = container_of(tx.sdata->bss,
struct ieee80211_sub_if_data, u.ap);
- /* fall through */
+ fallthrough;
default:
vif = &tx.sdata->vif;
break;
}
- IEEE80211_SKB_CB(skb)->control.vif = vif;
+encap_out:
+ info->control.vif = vif;
+
+ if (tx.sta &&
+ wiphy_ext_feature_isset(local->hw.wiphy, NL80211_EXT_FEATURE_AQL)) {
+ bool ampdu = txq->ac != IEEE80211_AC_VO;
+ u32 airtime;
+
+ airtime = ieee80211_calc_expected_tx_airtime(hw, vif, txq->sta,
+ skb->len, ampdu);
+ if (airtime) {
+ airtime = ieee80211_info_set_tx_time_est(info, airtime);
+ ieee80211_sta_update_pending_airtime(local, tx.sta,
+ txq->ac,
+ airtime,
+ false);
+ }
+ }
+
+ return skb;
out:
spin_unlock_bh(&fq->lock);
@@ -3630,28 +4012,302 @@ out:
}
EXPORT_SYMBOL(ieee80211_tx_dequeue);
+static inline s32 ieee80211_sta_deficit(struct sta_info *sta, u8 ac)
+{
+ struct airtime_info *air_info = &sta->airtime[ac];
+
+ return air_info->deficit - atomic_read(&air_info->aql_tx_pending);
+}
+
+static void
+ieee80211_txq_set_active(struct txq_info *txqi)
+{
+ struct sta_info *sta;
+
+ if (!txqi->txq.sta)
+ return;
+
+ sta = container_of(txqi->txq.sta, struct sta_info, sta);
+ sta->airtime[txqi->txq.ac].last_active = jiffies;
+}
+
+static bool
+ieee80211_txq_keep_active(struct txq_info *txqi)
+{
+ struct sta_info *sta;
+
+ if (!txqi->txq.sta)
+ return false;
+
+ sta = container_of(txqi->txq.sta, struct sta_info, sta);
+ if (ieee80211_sta_deficit(sta, txqi->txq.ac) >= 0)
+ return false;
+
+ return ieee80211_sta_keep_active(sta, txqi->txq.ac);
+}
+
+struct ieee80211_txq *ieee80211_next_txq(struct ieee80211_hw *hw, u8 ac)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+ struct ieee80211_txq *ret = NULL;
+ struct txq_info *txqi = NULL, *head = NULL;
+ bool found_eligible_txq = false;
+
+ spin_lock_bh(&local->active_txq_lock[ac]);
+
+ if (!local->schedule_round[ac])
+ goto out;
+
+ begin:
+ txqi = list_first_entry_or_null(&local->active_txqs[ac],
+ struct txq_info,
+ schedule_order);
+ if (!txqi)
+ goto out;
+
+ if (txqi == head) {
+ if (!found_eligible_txq)
+ goto out;
+ else
+ found_eligible_txq = false;
+ }
+
+ if (!head)
+ head = txqi;
+
+ if (txqi->txq.sta) {
+ struct sta_info *sta = container_of(txqi->txq.sta,
+ struct sta_info, sta);
+ bool aql_check = ieee80211_txq_airtime_check(hw, &txqi->txq);
+ s32 deficit = ieee80211_sta_deficit(sta, txqi->txq.ac);
+
+ if (aql_check)
+ found_eligible_txq = true;
+
+ if (deficit < 0)
+ sta->airtime[txqi->txq.ac].deficit +=
+ sta->airtime_weight;
+
+ if (deficit < 0 || !aql_check) {
+ list_move_tail(&txqi->schedule_order,
+ &local->active_txqs[txqi->txq.ac]);
+ goto begin;
+ }
+ }
+
+ if (txqi->schedule_round == local->schedule_round[ac])
+ goto out;
+
+ list_del_init(&txqi->schedule_order);
+ txqi->schedule_round = local->schedule_round[ac];
+ ret = &txqi->txq;
+
+out:
+ spin_unlock_bh(&local->active_txq_lock[ac]);
+ return ret;
+}
+EXPORT_SYMBOL(ieee80211_next_txq);
+
+void __ieee80211_schedule_txq(struct ieee80211_hw *hw,
+ struct ieee80211_txq *txq,
+ bool force)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+ struct txq_info *txqi = to_txq_info(txq);
+ bool has_queue;
+
+ spin_lock_bh(&local->active_txq_lock[txq->ac]);
+
+ has_queue = force ||
+ (!test_bit(IEEE80211_TXQ_STOP, &txqi->flags) &&
+ txq_has_queue(txq));
+ if (list_empty(&txqi->schedule_order) &&
+ (has_queue || ieee80211_txq_keep_active(txqi))) {
+ /* If airtime accounting is active, always enqueue STAs at the
+ * head of the list to ensure that they only get moved to the
+ * back by the airtime DRR scheduler once they have a negative
+ * deficit. A station that already has a negative deficit will
+ * get immediately moved to the back of the list on the next
+ * call to ieee80211_next_txq().
+ */
+ if (txqi->txq.sta && local->airtime_flags && has_queue &&
+ wiphy_ext_feature_isset(local->hw.wiphy,
+ NL80211_EXT_FEATURE_AIRTIME_FAIRNESS))
+ list_add(&txqi->schedule_order,
+ &local->active_txqs[txq->ac]);
+ else
+ list_add_tail(&txqi->schedule_order,
+ &local->active_txqs[txq->ac]);
+ if (has_queue)
+ ieee80211_txq_set_active(txqi);
+ }
+
+ spin_unlock_bh(&local->active_txq_lock[txq->ac]);
+}
+EXPORT_SYMBOL(__ieee80211_schedule_txq);
+
+DEFINE_STATIC_KEY_FALSE(aql_disable);
+
+bool ieee80211_txq_airtime_check(struct ieee80211_hw *hw,
+ struct ieee80211_txq *txq)
+{
+ struct sta_info *sta;
+ struct ieee80211_local *local = hw_to_local(hw);
+
+ if (!wiphy_ext_feature_isset(local->hw.wiphy, NL80211_EXT_FEATURE_AQL))
+ return true;
+
+ if (static_branch_unlikely(&aql_disable))
+ return true;
+
+ if (!txq->sta)
+ return true;
+
+ if (unlikely(txq->tid == IEEE80211_NUM_TIDS))
+ return true;
+
+ sta = container_of(txq->sta, struct sta_info, sta);
+ if (atomic_read(&sta->airtime[txq->ac].aql_tx_pending) <
+ sta->airtime[txq->ac].aql_limit_low)
+ return true;
+
+ if (atomic_read(&local->aql_total_pending_airtime) <
+ local->aql_threshold &&
+ atomic_read(&sta->airtime[txq->ac].aql_tx_pending) <
+ sta->airtime[txq->ac].aql_limit_high)
+ return true;
+
+ return false;
+}
+EXPORT_SYMBOL(ieee80211_txq_airtime_check);
+
+static bool
+ieee80211_txq_schedule_airtime_check(struct ieee80211_local *local, u8 ac)
+{
+ unsigned int num_txq = 0;
+ struct txq_info *txq;
+ u32 aql_limit;
+
+ if (!wiphy_ext_feature_isset(local->hw.wiphy, NL80211_EXT_FEATURE_AQL))
+ return true;
+
+ list_for_each_entry(txq, &local->active_txqs[ac], schedule_order)
+ num_txq++;
+
+ aql_limit = (num_txq - 1) * local->aql_txq_limit_low[ac] / 2 +
+ local->aql_txq_limit_high[ac];
+
+ return atomic_read(&local->aql_ac_pending_airtime[ac]) < aql_limit;
+}
+
+bool ieee80211_txq_may_transmit(struct ieee80211_hw *hw,
+ struct ieee80211_txq *txq)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+ struct txq_info *iter, *tmp, *txqi = to_txq_info(txq);
+ struct sta_info *sta;
+ u8 ac = txq->ac;
+
+ spin_lock_bh(&local->active_txq_lock[ac]);
+
+ if (!txqi->txq.sta)
+ goto out;
+
+ if (list_empty(&txqi->schedule_order))
+ goto out;
+
+ if (!ieee80211_txq_schedule_airtime_check(local, ac))
+ goto out;
+
+ list_for_each_entry_safe(iter, tmp, &local->active_txqs[ac],
+ schedule_order) {
+ if (iter == txqi)
+ break;
+
+ if (!iter->txq.sta) {
+ list_move_tail(&iter->schedule_order,
+ &local->active_txqs[ac]);
+ continue;
+ }
+ sta = container_of(iter->txq.sta, struct sta_info, sta);
+ if (ieee80211_sta_deficit(sta, ac) < 0)
+ sta->airtime[ac].deficit += sta->airtime_weight;
+ list_move_tail(&iter->schedule_order, &local->active_txqs[ac]);
+ }
+
+ sta = container_of(txqi->txq.sta, struct sta_info, sta);
+ if (sta->airtime[ac].deficit >= 0)
+ goto out;
+
+ sta->airtime[ac].deficit += sta->airtime_weight;
+ list_move_tail(&txqi->schedule_order, &local->active_txqs[ac]);
+ spin_unlock_bh(&local->active_txq_lock[ac]);
+
+ return false;
+out:
+ if (!list_empty(&txqi->schedule_order))
+ list_del_init(&txqi->schedule_order);
+ spin_unlock_bh(&local->active_txq_lock[ac]);
+
+ return true;
+}
+EXPORT_SYMBOL(ieee80211_txq_may_transmit);
+
+void ieee80211_txq_schedule_start(struct ieee80211_hw *hw, u8 ac)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+
+ spin_lock_bh(&local->active_txq_lock[ac]);
+
+ if (ieee80211_txq_schedule_airtime_check(local, ac)) {
+ local->schedule_round[ac]++;
+ if (!local->schedule_round[ac])
+ local->schedule_round[ac]++;
+ } else {
+ local->schedule_round[ac] = 0;
+ }
+
+ spin_unlock_bh(&local->active_txq_lock[ac]);
+}
+EXPORT_SYMBOL(ieee80211_txq_schedule_start);
+
void __ieee80211_subif_start_xmit(struct sk_buff *skb,
struct net_device *dev,
- u32 info_flags)
+ u32 info_flags,
+ u32 ctrl_flags,
+ u64 *cookie)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ struct ieee80211_local *local = sdata->local;
struct sta_info *sta;
struct sk_buff *next;
+ int len = skb->len;
- if (unlikely(skb->len < ETH_HLEN)) {
+ if (unlikely(!ieee80211_sdata_running(sdata) || skb->len < ETH_HLEN)) {
kfree_skb(skb);
return;
}
+ sk_pacing_shift_update(skb->sk, sdata->local->hw.tx_sk_pacing_shift);
+
rcu_read_lock();
+ if (ieee80211_vif_is_mesh(&sdata->vif) &&
+ ieee80211_hw_check(&local->hw, SUPPORT_FAST_XMIT) &&
+ ieee80211_mesh_xmit_fast(sdata, skb, ctrl_flags))
+ goto out;
+
if (ieee80211_lookup_ra_sta(sdata, skb, &sta))
goto out_free;
- if (!IS_ERR_OR_NULL(sta)) {
- struct ieee80211_fast_tx *fast_tx;
+ if (IS_ERR(sta))
+ sta = NULL;
- sk_pacing_shift_update(skb->sk, sdata->local->hw.tx_sk_pacing_shift);
+ skb_set_queue_mapping(skb, ieee80211_select_queue(sdata, sta, skb));
+ ieee80211_aggr_check(sdata, sta, skb);
+
+ if (sta) {
+ struct ieee80211_fast_tx *fast_tx;
fast_tx = rcu_dereference(sta->fast_tx);
@@ -3660,55 +4316,40 @@ void __ieee80211_subif_start_xmit(struct sk_buff *skb,
goto out;
}
- if (skb_is_gso(skb)) {
- struct sk_buff *segs;
-
- segs = skb_gso_segment(skb, 0);
- if (IS_ERR(segs)) {
- goto out_free;
- } else if (segs) {
- consume_skb(skb);
- skb = segs;
- }
- } else {
- /* we cannot process non-linear frames on this path */
- if (skb_linearize(skb)) {
- kfree_skb(skb);
- goto out;
- }
-
- /* the frame could be fragmented, software-encrypted, and other
- * things so we cannot really handle checksum offload with it -
- * fix it up in software before we handle anything else.
- */
- if (skb->ip_summed == CHECKSUM_PARTIAL) {
- skb_set_transport_header(skb,
- skb_checksum_start_offset(skb));
- if (skb_checksum_help(skb))
- goto out_free;
- }
+ /* the frame could be fragmented, software-encrypted, and other
+ * things so we cannot really handle checksum or GSO offload.
+ * fix it up in software before we handle anything else.
+ */
+ skb = ieee80211_tx_skb_fixup(skb, 0);
+ if (!skb) {
+ len = 0;
+ goto out;
}
- next = skb;
- while (next) {
- skb = next;
- next = skb->next;
+ skb_list_walk_safe(skb, skb, next) {
+ skb_mark_not_on_list(skb);
- skb->prev = NULL;
- skb->next = NULL;
+ if (skb->protocol == sdata->control_port_protocol)
+ ctrl_flags |= IEEE80211_TX_CTRL_SKIP_MPATH_LOOKUP;
- skb = ieee80211_build_hdr(sdata, skb, info_flags, sta);
- if (IS_ERR(skb))
+ skb = ieee80211_build_hdr(sdata, skb, info_flags,
+ sta, ctrl_flags, cookie);
+ if (IS_ERR(skb)) {
+ kfree_skb_list(next);
goto out;
+ }
- ieee80211_tx_stats(dev, skb->len);
+ dev_sw_netstats_tx_add(dev, 1, skb->len);
- ieee80211_xmit(sdata, sta, skb, 0);
+ ieee80211_xmit(sdata, sta, skb);
}
goto out;
out_free:
kfree_skb(skb);
+ len = 0;
out:
+ if (len)
+ ieee80211_tpt_led_trig_tx(local, len);
rcu_read_unlock();
}
@@ -3735,16 +4376,13 @@ static bool ieee80211_multicast_to_unicast(struct sk_buff *skb,
const struct vlan_ethhdr *ethvlan = (void *)skb->data;
__be16 ethertype;
- if (likely(!is_multicast_ether_addr(eth->h_dest)))
- return false;
-
switch (sdata->vif.type) {
case NL80211_IFTYPE_AP_VLAN:
if (sdata->u.vlan.sta)
return false;
if (sdata->wdev.use_4addr)
return false;
- /* fall through */
+ fallthrough;
case NL80211_IFTYPE_AP:
/* check runtime toggle for this bss */
if (!sdata->bss->multicast_to_unicast)
@@ -3821,27 +4459,280 @@ out:
rcu_read_unlock();
}
+static void ieee80211_mlo_multicast_tx_one(struct ieee80211_sub_if_data *sdata,
+ struct sk_buff *skb, u32 ctrl_flags,
+ unsigned int link_id)
+{
+ struct sk_buff *out;
+
+ out = skb_copy(skb, GFP_ATOMIC);
+ if (!out)
+ return;
+
+ ctrl_flags |= u32_encode_bits(link_id, IEEE80211_TX_CTRL_MLO_LINK);
+ __ieee80211_subif_start_xmit(out, sdata->dev, 0, ctrl_flags, NULL);
+}
+
+static void ieee80211_mlo_multicast_tx(struct net_device *dev,
+ struct sk_buff *skb)
+{
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ unsigned long links = sdata->vif.active_links;
+ unsigned int link;
+ u32 ctrl_flags = IEEE80211_TX_CTRL_MCAST_MLO_FIRST_TX;
+
+ if (hweight16(links) == 1) {
+ ctrl_flags |= u32_encode_bits(__ffs(links),
+ IEEE80211_TX_CTRL_MLO_LINK);
+
+ __ieee80211_subif_start_xmit(skb, sdata->dev, 0, ctrl_flags,
+ NULL);
+ return;
+ }
+
+ for_each_set_bit(link, &links, IEEE80211_MLD_MAX_NUM_LINKS) {
+ ieee80211_mlo_multicast_tx_one(sdata, skb, ctrl_flags, link);
+ ctrl_flags = 0;
+ }
+ kfree_skb(skb);
+}
+
/**
* ieee80211_subif_start_xmit - netif start_xmit function for 802.3 vifs
* @skb: packet to be sent
* @dev: incoming interface
*
* On failure skb will be freed.
+ *
+ * Returns: the netdev TX status (but really only %NETDEV_TX_OK)
*/
netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
struct net_device *dev)
{
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ const struct ethhdr *eth = (void *)skb->data;
+
+ if (likely(!is_multicast_ether_addr(eth->h_dest)))
+ goto normal;
+
+ if (unlikely(!ieee80211_sdata_running(sdata))) {
+ kfree_skb(skb);
+ return NETDEV_TX_OK;
+ }
+
if (unlikely(ieee80211_multicast_to_unicast(skb, dev))) {
struct sk_buff_head queue;
__skb_queue_head_init(&queue);
ieee80211_convert_to_unicast(skb, dev, &queue);
while ((skb = __skb_dequeue(&queue)))
- __ieee80211_subif_start_xmit(skb, dev, 0);
+ __ieee80211_subif_start_xmit(skb, dev, 0,
+ IEEE80211_TX_CTRL_MLO_LINK_UNSPEC,
+ NULL);
+ } else if (ieee80211_vif_is_mld(&sdata->vif) &&
+ ((sdata->vif.type == NL80211_IFTYPE_AP &&
+ !ieee80211_hw_check(&sdata->local->hw, MLO_MCAST_MULTI_LINK_TX)) ||
+ (sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
+ !sdata->wdev.use_4addr))) {
+ ieee80211_mlo_multicast_tx(dev, skb);
} else {
- __ieee80211_subif_start_xmit(skb, dev, 0);
+normal:
+ __ieee80211_subif_start_xmit(skb, dev, 0,
+ IEEE80211_TX_CTRL_MLO_LINK_UNSPEC,
+ NULL);
+ }
+
+ return NETDEV_TX_OK;
+}
+
+
+
+static bool __ieee80211_tx_8023(struct ieee80211_sub_if_data *sdata,
+ struct sk_buff *skb, struct sta_info *sta,
+ bool txpending)
+{
+ struct ieee80211_local *local = sdata->local;
+ struct ieee80211_tx_control control = {};
+ struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+ struct ieee80211_sta *pubsta = NULL;
+ unsigned long flags;
+ int q = info->hw_queue;
+
+ spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
+
+ if (local->queue_stop_reasons[q] ||
+ (!txpending && !skb_queue_empty(&local->pending[q]))) {
+ if (txpending)
+ skb_queue_head(&local->pending[q], skb);
+ else
+ skb_queue_tail(&local->pending[q], skb);
+
+ spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
+
+ return false;
+ }
+
+ spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
+
+ if (sta && sta->uploaded)
+ pubsta = &sta->sta;
+
+ control.sta = pubsta;
+
+ drv_tx(local, &control, skb);
+
+ return true;
+}
+
+static bool ieee80211_tx_8023(struct ieee80211_sub_if_data *sdata,
+ struct sk_buff *skb, struct sta_info *sta,
+ bool txpending)
+{
+ struct ieee80211_local *local = sdata->local;
+ struct sk_buff *next;
+ bool ret = true;
+
+ if (ieee80211_queue_skb(local, sdata, sta, skb))
+ return true;
+
+ skb_list_walk_safe(skb, skb, next) {
+ skb_mark_not_on_list(skb);
+ if (!__ieee80211_tx_8023(sdata, skb, sta, txpending))
+ ret = false;
+ }
+
+ return ret;
+}
+
+static void ieee80211_8023_xmit(struct ieee80211_sub_if_data *sdata,
+ struct net_device *dev, struct sta_info *sta,
+ struct ieee80211_key *key, struct sk_buff *skb)
+{
+ struct ieee80211_tx_info *info;
+ struct ieee80211_local *local = sdata->local;
+ struct tid_ampdu_tx *tid_tx;
+ struct sk_buff *seg, *next;
+ unsigned int skbs = 0, len = 0;
+ u16 queue;
+ u8 tid;
+
+ queue = ieee80211_select_queue(sdata, sta, skb);
+ skb_set_queue_mapping(skb, queue);
+
+ if (unlikely(test_bit(SCAN_SW_SCANNING, &local->scanning)) &&
+ test_bit(SDATA_STATE_OFFCHANNEL, &sdata->state))
+ goto out_free;
+
+ skb = skb_share_check(skb, GFP_ATOMIC);
+ if (unlikely(!skb))
+ return;
+
+ ieee80211_aggr_check(sdata, sta, skb);
+
+ tid = skb->priority & IEEE80211_QOS_CTL_TAG1D_MASK;
+ tid_tx = rcu_dereference(sta->ampdu_mlme.tid_tx[tid]);
+ if (tid_tx) {
+ if (!test_bit(HT_AGG_STATE_OPERATIONAL, &tid_tx->state)) {
+ /* fall back to non-offload slow path */
+ __ieee80211_subif_start_xmit(skb, dev, 0,
+ IEEE80211_TX_CTRL_MLO_LINK_UNSPEC,
+ NULL);
+ return;
+ }
+
+ if (tid_tx->timeout)
+ tid_tx->last_tx = jiffies;
+ }
+
+ skb = ieee80211_tx_skb_fixup(skb, ieee80211_sdata_netdev_features(sdata));
+ if (!skb)
+ return;
+
+ info = IEEE80211_SKB_CB(skb);
+ memset(info, 0, sizeof(*info));
+
+ info->hw_queue = sdata->vif.hw_queue[queue];
+
+ if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
+ sdata = container_of(sdata->bss,
+ struct ieee80211_sub_if_data, u.ap);
+
+ info->flags |= IEEE80211_TX_CTL_HW_80211_ENCAP;
+ info->control.vif = &sdata->vif;
+
+ if (key)
+ info->control.hw_key = &key->conf;
+
+ skb_list_walk_safe(skb, seg, next) {
+ skbs++;
+ len += seg->len;
+ if (seg != skb)
+ memcpy(IEEE80211_SKB_CB(seg), info, sizeof(*info));
+ }
+
+ if (unlikely(sk_requests_wifi_status(skb->sk))) {
+ info->status_data = ieee80211_store_ack_skb(local, skb,
+ &info->flags, NULL);
+ if (info->status_data)
+ info->status_data_idr = 1;
+ }
+
+ dev_sw_netstats_tx_add(dev, skbs, len);
+ sta->deflink.tx_stats.packets[queue] += skbs;
+ sta->deflink.tx_stats.bytes[queue] += len;
+
+ ieee80211_tpt_led_trig_tx(local, len);
+
+ ieee80211_tx_8023(sdata, skb, sta, false);
+
+ return;
+
+out_free:
+ kfree_skb(skb);
+}
+
+netdev_tx_t ieee80211_subif_start_xmit_8023(struct sk_buff *skb,
+ struct net_device *dev)
+{
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ struct ethhdr *ehdr = (struct ethhdr *)skb->data;
+ struct ieee80211_key *key;
+ struct sta_info *sta;
+
+ if (unlikely(!ieee80211_sdata_running(sdata) || skb->len < ETH_HLEN)) {
+ kfree_skb(skb);
+ return NETDEV_TX_OK;
+ }
+
+ rcu_read_lock();
+
+ if (ieee80211_lookup_ra_sta(sdata, skb, &sta)) {
+ kfree_skb(skb);
+ goto out;
}
+ if (unlikely(IS_ERR_OR_NULL(sta) || !sta->uploaded ||
+ !test_sta_flag(sta, WLAN_STA_AUTHORIZED) ||
+ sdata->control_port_protocol == ehdr->h_proto))
+ goto skip_offload;
+
+ key = rcu_dereference(sta->ptk[sta->ptk_idx]);
+ if (!key)
+ key = rcu_dereference(sdata->default_unicast_key);
+
+ if (key && (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) ||
+ key->conf.cipher == WLAN_CIPHER_SUITE_TKIP))
+ goto skip_offload;
+
+ sk_pacing_shift_update(skb->sk, sdata->local->hw.tx_sk_pacing_shift);
+ ieee80211_8023_xmit(sdata, dev, sta, key, skb);
+ goto out;
+
+skip_offload:
+ ieee80211_subif_start_xmit(skb, dev);
+out:
+ rcu_read_unlock();
+
return NETDEV_TX_OK;
}
@@ -3864,7 +4755,8 @@ ieee80211_build_data_template(struct ieee80211_sub_if_data *sdata,
goto out;
}
- skb = ieee80211_build_hdr(sdata, skb, info_flags, sta);
+ skb = ieee80211_build_hdr(sdata, skb, info_flags, sta,
+ IEEE80211_TX_CTRL_MLO_LINK_UNSPEC, NULL);
if (IS_ERR(skb))
goto out;
@@ -3915,14 +4807,28 @@ static bool ieee80211_tx_pending_skb(struct ieee80211_local *local,
sdata = vif_to_sdata(info->control.vif);
- if (info->flags & IEEE80211_TX_INTFL_NEED_TXPROCESSING) {
- chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
- if (unlikely(!chanctx_conf)) {
+ if (info->control.flags & IEEE80211_TX_INTCFL_NEED_TXPROCESSING) {
+ /* update band only for non-MLD */
+ if (!ieee80211_vif_is_mld(&sdata->vif)) {
+ chanctx_conf =
+ rcu_dereference(sdata->vif.bss_conf.chanctx_conf);
+ if (unlikely(!chanctx_conf)) {
+ dev_kfree_skb(skb);
+ return true;
+ }
+ info->band = chanctx_conf->def.chan->band;
+ }
+ result = ieee80211_tx(sdata, NULL, skb, true);
+ } else if (info->flags & IEEE80211_TX_CTL_HW_80211_ENCAP) {
+ if (ieee80211_lookup_ra_sta(sdata, skb, &sta)) {
dev_kfree_skb(skb);
return true;
}
- info->band = chanctx_conf->def.chan->band;
- result = ieee80211_tx(sdata, NULL, skb, true, 0);
+
+ if (IS_ERR(sta) || (sta && !sta->uploaded))
+ sta = NULL;
+
+ result = ieee80211_tx_8023(sdata, skb, sta, true);
} else {
struct sk_buff_head skbs;
@@ -3932,7 +4838,7 @@ static bool ieee80211_tx_pending_skb(struct ieee80211_local *local,
hdr = (struct ieee80211_hdr *)skb->data;
sta = sta_info_get(sdata, hdr->addr1);
- result = __ieee80211_tx(local, &skbs, skb->len, sta, true);
+ result = __ieee80211_tx(local, &skbs, sta, true);
}
return result;
@@ -3941,9 +4847,10 @@ static bool ieee80211_tx_pending_skb(struct ieee80211_local *local,
/*
* Transmit all pending packets. Called from tasklet.
*/
-void ieee80211_tx_pending(unsigned long data)
+void ieee80211_tx_pending(struct tasklet_struct *t)
{
- struct ieee80211_local *local = (struct ieee80211_local *)data;
+ struct ieee80211_local *local = from_tasklet(local, t,
+ tx_pending_tasklet);
unsigned long flags;
int i;
bool txok;
@@ -3978,9 +4885,6 @@ void ieee80211_tx_pending(unsigned long data)
if (!txok)
break;
}
-
- if (skb_queue_empty(&local->pending[i]))
- ieee80211_propagate_queue_wake(local, i);
}
spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
@@ -3989,13 +4893,114 @@ void ieee80211_tx_pending(unsigned long data)
/* functions for drivers to get certain frames */
+static void ieee80211_beacon_add_tim_pvb(struct ps_data *ps,
+ struct sk_buff *skb,
+ bool mcast_traffic)
+{
+ int i, n1 = 0, n2;
+
+ /*
+ * Find largest even number N1 so that bits numbered 1 through
+ * (N1 x 8) - 1 in the bitmap are 0 and number N2 so that bits
+ * (N2 + 1) x 8 through 2007 are 0.
+ */
+ for (i = 0; i < IEEE80211_MAX_TIM_LEN; i++) {
+ if (ps->tim[i]) {
+ n1 = i & 0xfe;
+ break;
+ }
+ }
+ n2 = n1;
+ for (i = IEEE80211_MAX_TIM_LEN - 1; i >= n1; i--) {
+ if (ps->tim[i]) {
+ n2 = i;
+ break;
+ }
+ }
+
+ /* Bitmap control */
+ skb_put_u8(skb, n1 | mcast_traffic);
+ /* Part Virt Bitmap */
+ skb_put_data(skb, ps->tim + n1, n2 - n1 + 1);
+}
+
+/*
+ * mac80211 currently supports encoding using block bitmap mode, non
+ * inversed. The current implementation supports up to 1600 AIDs.
+ *
+ * Block bitmap encoding breaks down the AID bitmap into blocks of 64
+ * AIDs. Each block contains between 0 and 8 subblocks. Each subblock
+ * describes 8 AIDs and the presence of a subblock is determined by
+ * the block bitmap.
+ */
+static void ieee80211_s1g_beacon_add_tim_pvb(struct ps_data *ps,
+ struct sk_buff *skb,
+ bool mcast_traffic)
+{
+ int blk;
+
+ /*
+ * Emit a bitmap control block with a page slice number of 31 and a
+ * page index of 0 which indicates as per IEEE80211-2024 9.4.2.5.1
+ * that the entire page (2048 bits) indicated by the page index
+ * is encoded in the partial virtual bitmap.
+ */
+ skb_put_u8(skb, mcast_traffic | (31 << 1));
+
+ /* Emit an encoded block for each non-zero sub-block */
+ for (blk = 0; blk < IEEE80211_MAX_SUPPORTED_S1G_TIM_BLOCKS; blk++) {
+ u8 blk_bmap = 0;
+ int sblk;
+
+ for (sblk = 0; sblk < 8; sblk++) {
+ int sblk_idx = blk * 8 + sblk;
+
+ /*
+ * If the current subblock is non-zero, increase the
+ * number of subblocks to emit for the current block.
+ */
+ if (ps->tim[sblk_idx])
+ blk_bmap |= BIT(sblk);
+ }
+
+ /* If the current block contains no non-zero sublocks */
+ if (!blk_bmap)
+ continue;
+
+ /*
+ * Emit a block control byte for the current encoded block
+ * with an encoding mode of block bitmap (0x0), not inverse
+ * (0x0) and the current block offset (5 bits)
+ */
+ skb_put_u8(skb, blk << 3);
+
+ /*
+ * Emit the block bitmap for the current encoded block which
+ * contains the present subblocks.
+ */
+ skb_put_u8(skb, blk_bmap);
+
+ /* Emit the present subblocks */
+ for (sblk = 0; sblk < 8; sblk++) {
+ int sblk_idx = blk * 8 + sblk;
+
+ if (!(blk_bmap & BIT(sblk)))
+ continue;
+
+ skb_put_u8(skb, ps->tim[sblk_idx]);
+ }
+ }
+}
+
static void __ieee80211_beacon_add_tim(struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_link_data *link,
struct ps_data *ps, struct sk_buff *skb,
bool is_template)
{
- u8 *pos, *tim;
- int aid0 = 0;
- int i, have_bits = 0, n1, n2;
+ struct element *tim;
+ bool mcast_traffic = false, have_bits = false;
+ struct ieee80211_bss_conf *link_conf = link->conf;
+ bool s1g = ieee80211_get_link_sband(link)->band == NL80211_BAND_S1GHZ;
/* Generate bitmap for TIM only if there are any STAs in power save
* mode. */
@@ -4003,58 +5008,52 @@ static void __ieee80211_beacon_add_tim(struct ieee80211_sub_if_data *sdata,
/* in the hope that this is faster than
* checking byte-for-byte */
have_bits = !bitmap_empty((unsigned long *)ps->tim,
- IEEE80211_MAX_AID+1);
+ IEEE80211_MAX_AID + 1);
+
if (!is_template) {
if (ps->dtim_count == 0)
- ps->dtim_count = sdata->vif.bss_conf.dtim_period - 1;
+ ps->dtim_count = link_conf->dtim_period - 1;
else
ps->dtim_count--;
}
- tim = pos = skb_put(skb, 6);
- *pos++ = WLAN_EID_TIM;
- *pos++ = 4;
- *pos++ = ps->dtim_count;
- *pos++ = sdata->vif.bss_conf.dtim_period;
+ /* Length is set after parsing the AID bitmap */
+ tim = skb_put(skb, sizeof(struct element));
+ tim->id = WLAN_EID_TIM;
+ skb_put_u8(skb, ps->dtim_count);
+ skb_put_u8(skb, link_conf->dtim_period);
if (ps->dtim_count == 0 && !skb_queue_empty(&ps->bc_buf))
- aid0 = 1;
+ mcast_traffic = true;
- ps->dtim_bc_mc = aid0 == 1;
+ ps->dtim_bc_mc = mcast_traffic;
if (have_bits) {
- /* Find largest even number N1 so that bits numbered 1 through
- * (N1 x 8) - 1 in the bitmap are 0 and number N2 so that bits
- * (N2 + 1) x 8 through 2007 are 0. */
- n1 = 0;
- for (i = 0; i < IEEE80211_MAX_TIM_LEN; i++) {
- if (ps->tim[i]) {
- n1 = i & 0xfe;
- break;
- }
- }
- n2 = n1;
- for (i = IEEE80211_MAX_TIM_LEN - 1; i >= n1; i--) {
- if (ps->tim[i]) {
- n2 = i;
- break;
- }
- }
-
- /* Bitmap control */
- *pos++ = n1 | aid0;
- /* Part Virt Bitmap */
- skb_put(skb, n2 - n1);
- memcpy(pos, ps->tim + n1, n2 - n1 + 1);
-
- tim[1] = n2 - n1 + 4;
+ if (s1g)
+ ieee80211_s1g_beacon_add_tim_pvb(ps, skb,
+ mcast_traffic);
+ else
+ ieee80211_beacon_add_tim_pvb(ps, skb, mcast_traffic);
} else {
- *pos++ = aid0; /* Bitmap control */
- *pos++ = 0; /* Part Virt Bitmap */
+ /*
+ * If there is no buffered unicast traffic for an S1G
+ * interface, we can exclude the bitmap control. This is in
+ * contrast to other phy types as they do include the bitmap
+ * control and pvb even when there is no buffered traffic.
+ */
+ if (!s1g) {
+ /* Bitmap control */
+ skb_put_u8(skb, mcast_traffic);
+ /* Part Virt Bitmap */
+ skb_put_u8(skb, 0);
+ }
}
+
+ tim->datalen = skb_tail_pointer(skb) - tim->data;
}
static int ieee80211_beacon_add_tim(struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_link_data *link,
struct ps_data *ps, struct sk_buff *skb,
bool is_template)
{
@@ -4068,24 +5067,25 @@ static int ieee80211_beacon_add_tim(struct ieee80211_sub_if_data *sdata,
* of the tim bitmap in mac80211 and the driver.
*/
if (local->tim_in_locked_section) {
- __ieee80211_beacon_add_tim(sdata, ps, skb, is_template);
+ __ieee80211_beacon_add_tim(sdata, link, ps, skb, is_template);
} else {
spin_lock_bh(&local->tim_lock);
- __ieee80211_beacon_add_tim(sdata, ps, skb, is_template);
+ __ieee80211_beacon_add_tim(sdata, link, ps, skb, is_template);
spin_unlock_bh(&local->tim_lock);
}
return 0;
}
-static void ieee80211_set_csa(struct ieee80211_sub_if_data *sdata,
- struct beacon_data *beacon)
+static void ieee80211_set_beacon_cntdwn(struct ieee80211_sub_if_data *sdata,
+ struct beacon_data *beacon,
+ struct ieee80211_link_data *link)
{
+ u8 *beacon_data, count, max_count = 1;
struct probe_resp *resp;
- u8 *beacon_data;
size_t beacon_data_len;
+ u16 *bcn_offsets;
int i;
- u8 count = beacon->csa_current_counter;
switch (sdata->vif.type) {
case NL80211_IFTYPE_AP:
@@ -4104,46 +5104,69 @@ static void ieee80211_set_csa(struct ieee80211_sub_if_data *sdata,
return;
}
- rcu_read_lock();
- for (i = 0; i < IEEE80211_MAX_CSA_COUNTERS_NUM; ++i) {
- resp = rcu_dereference(sdata->u.ap.probe_resp);
+ resp = rcu_dereference(link->u.ap.probe_resp);
- if (beacon->csa_counter_offsets[i]) {
- if (WARN_ON_ONCE(beacon->csa_counter_offsets[i] >=
- beacon_data_len)) {
- rcu_read_unlock();
- return;
- }
+ bcn_offsets = beacon->cntdwn_counter_offsets;
+ count = beacon->cntdwn_current_counter;
+ if (link->conf->csa_active)
+ max_count = IEEE80211_MAX_CNTDWN_COUNTERS_NUM;
- beacon_data[beacon->csa_counter_offsets[i]] = count;
+ for (i = 0; i < max_count; ++i) {
+ if (bcn_offsets[i]) {
+ if (WARN_ON_ONCE(bcn_offsets[i] >= beacon_data_len))
+ return;
+ beacon_data[bcn_offsets[i]] = count;
}
- if (sdata->vif.type == NL80211_IFTYPE_AP && resp)
- resp->data[resp->csa_counter_offsets[i]] = count;
+ if (sdata->vif.type == NL80211_IFTYPE_AP && resp) {
+ u16 *resp_offsets = resp->cntdwn_counter_offsets;
+
+ resp->data[resp_offsets[i]] = count;
+ }
}
- rcu_read_unlock();
}
-static u8 __ieee80211_csa_update_counter(struct beacon_data *beacon)
+static u8 __ieee80211_beacon_update_cntdwn(struct ieee80211_link_data *link,
+ struct beacon_data *beacon)
{
- beacon->csa_current_counter--;
+ if (beacon->cntdwn_current_counter == 1) {
+ /*
+ * Channel switch handling is done by a worker thread while
+ * beacons get pulled from hardware timers. It's therefore
+ * possible that software threads are slow enough to not be
+ * able to complete CSA handling in a single beacon interval,
+ * in which case we get here. There isn't much to do about
+ * it, other than letting the user know that the AP isn't
+ * behaving correctly.
+ */
+ link_err_once(link,
+ "beacon TX faster than countdown (channel/color switch) completion\n");
+ return 0;
+ }
- /* the counter should never reach 0 */
- WARN_ON_ONCE(!beacon->csa_current_counter);
+ beacon->cntdwn_current_counter--;
- return beacon->csa_current_counter;
+ return beacon->cntdwn_current_counter;
}
-u8 ieee80211_csa_update_counter(struct ieee80211_vif *vif)
+u8 ieee80211_beacon_update_cntdwn(struct ieee80211_vif *vif, unsigned int link_id)
{
struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
+ struct ieee80211_link_data *link;
struct beacon_data *beacon = NULL;
u8 count = 0;
+ if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS))
+ return 0;
+
rcu_read_lock();
+ link = rcu_dereference(sdata->link[link_id]);
+ if (!link)
+ goto unlock;
+
if (sdata->vif.type == NL80211_IFTYPE_AP)
- beacon = rcu_dereference(sdata->u.ap.beacon);
+ beacon = rcu_dereference(link->u.ap.beacon);
else if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
beacon = rcu_dereference(sdata->u.ibss.presp);
else if (ieee80211_vif_is_mesh(&sdata->vif))
@@ -4152,15 +5175,15 @@ u8 ieee80211_csa_update_counter(struct ieee80211_vif *vif)
if (!beacon)
goto unlock;
- count = __ieee80211_csa_update_counter(beacon);
+ count = __ieee80211_beacon_update_cntdwn(link, beacon);
unlock:
rcu_read_unlock();
return count;
}
-EXPORT_SYMBOL(ieee80211_csa_update_counter);
+EXPORT_SYMBOL(ieee80211_beacon_update_cntdwn);
-void ieee80211_csa_set_counter(struct ieee80211_vif *vif, u8 counter)
+void ieee80211_beacon_set_cntdwn(struct ieee80211_vif *vif, u8 counter)
{
struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
struct beacon_data *beacon = NULL;
@@ -4168,7 +5191,7 @@ void ieee80211_csa_set_counter(struct ieee80211_vif *vif, u8 counter)
rcu_read_lock();
if (sdata->vif.type == NL80211_IFTYPE_AP)
- beacon = rcu_dereference(sdata->u.ap.beacon);
+ beacon = rcu_dereference(sdata->deflink.u.ap.beacon);
else if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
beacon = rcu_dereference(sdata->u.ibss.presp);
else if (ieee80211_vif_is_mesh(&sdata->vif))
@@ -4177,17 +5200,19 @@ void ieee80211_csa_set_counter(struct ieee80211_vif *vif, u8 counter)
if (!beacon)
goto unlock;
- if (counter < beacon->csa_current_counter)
- beacon->csa_current_counter = counter;
+ if (counter < beacon->cntdwn_current_counter)
+ beacon->cntdwn_current_counter = counter;
unlock:
rcu_read_unlock();
}
-EXPORT_SYMBOL(ieee80211_csa_set_counter);
+EXPORT_SYMBOL(ieee80211_beacon_set_cntdwn);
-bool ieee80211_csa_is_complete(struct ieee80211_vif *vif)
+bool ieee80211_beacon_cntdwn_is_complete(struct ieee80211_vif *vif,
+ unsigned int link_id)
{
struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
+ struct ieee80211_link_data *link;
struct beacon_data *beacon = NULL;
u8 *beacon_data;
size_t beacon_data_len;
@@ -4196,11 +5221,17 @@ bool ieee80211_csa_is_complete(struct ieee80211_vif *vif)
if (!ieee80211_sdata_running(sdata))
return false;
+ if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS))
+ return 0;
+
rcu_read_lock();
- if (vif->type == NL80211_IFTYPE_AP) {
- struct ieee80211_if_ap *ap = &sdata->u.ap;
- beacon = rcu_dereference(ap->beacon);
+ link = rcu_dereference(sdata->link[link_id]);
+ if (!link)
+ goto out;
+
+ if (vif->type == NL80211_IFTYPE_AP) {
+ beacon = rcu_dereference(link->u.ap.beacon);
if (WARN_ON(!beacon || !beacon->tail))
goto out;
beacon_data = beacon->tail;
@@ -4228,41 +5259,341 @@ bool ieee80211_csa_is_complete(struct ieee80211_vif *vif)
goto out;
}
- if (!beacon->csa_counter_offsets[0])
+ if (!beacon->cntdwn_counter_offsets[0])
goto out;
- if (WARN_ON_ONCE(beacon->csa_counter_offsets[0] > beacon_data_len))
+ if (WARN_ON_ONCE(beacon->cntdwn_counter_offsets[0] > beacon_data_len))
goto out;
- if (beacon_data[beacon->csa_counter_offsets[0]] == 1)
+ if (beacon_data[beacon->cntdwn_counter_offsets[0]] == 1)
ret = true;
+
out:
rcu_read_unlock();
return ret;
}
-EXPORT_SYMBOL(ieee80211_csa_is_complete);
+EXPORT_SYMBOL(ieee80211_beacon_cntdwn_is_complete);
+
+static int ieee80211_beacon_protect(struct sk_buff *skb,
+ struct ieee80211_local *local,
+ struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_link_data *link)
+{
+ ieee80211_tx_result res;
+ struct ieee80211_tx_data tx;
+ struct sk_buff *check_skb;
+
+ memset(&tx, 0, sizeof(tx));
+ tx.key = rcu_dereference(link->default_beacon_key);
+ if (!tx.key)
+ return 0;
+
+ if (unlikely(tx.key->flags & KEY_FLAG_TAINTED)) {
+ tx.key = NULL;
+ return -EINVAL;
+ }
+
+ if (!(tx.key->conf.flags & IEEE80211_KEY_FLAG_SW_MGMT_TX) &&
+ tx.key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
+ IEEE80211_SKB_CB(skb)->control.hw_key = &tx.key->conf;
+
+ tx.local = local;
+ tx.sdata = sdata;
+ __skb_queue_head_init(&tx.skbs);
+ __skb_queue_tail(&tx.skbs, skb);
+ res = ieee80211_tx_h_encrypt(&tx);
+ check_skb = __skb_dequeue(&tx.skbs);
+ /* we may crash after this, but it'd be a bug in crypto */
+ WARN_ON(check_skb != skb);
+ if (WARN_ON_ONCE(res != TX_CONTINUE))
+ return -EINVAL;
+
+ return 0;
+}
+
+static void
+ieee80211_beacon_get_finish(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_link_data *link,
+ struct ieee80211_mutable_offsets *offs,
+ struct beacon_data *beacon,
+ struct sk_buff *skb,
+ struct ieee80211_chanctx_conf *chanctx_conf,
+ u16 csa_off_base)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+ struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
+ struct ieee80211_tx_info *info;
+ enum nl80211_band band;
+ struct ieee80211_tx_rate_control txrc;
+
+ /* CSA offsets */
+ if (offs && beacon) {
+ u16 i;
+
+ for (i = 0; i < IEEE80211_MAX_CNTDWN_COUNTERS_NUM; i++) {
+ u16 csa_off = beacon->cntdwn_counter_offsets[i];
+
+ if (!csa_off)
+ continue;
+
+ offs->cntdwn_counter_offs[i] = csa_off_base + csa_off;
+ }
+ }
+
+ band = chanctx_conf->def.chan->band;
+ info = IEEE80211_SKB_CB(skb);
+ info->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT;
+ info->flags |= IEEE80211_TX_CTL_NO_ACK;
+ info->band = band;
+
+ memset(&txrc, 0, sizeof(txrc));
+ txrc.hw = hw;
+ txrc.sband = local->hw.wiphy->bands[band];
+ txrc.bss_conf = link->conf;
+ txrc.skb = skb;
+ txrc.reported_rate.idx = -1;
+ if (sdata->beacon_rate_set && sdata->beacon_rateidx_mask[band])
+ txrc.rate_idx_mask = sdata->beacon_rateidx_mask[band];
+ else
+ txrc.rate_idx_mask = sdata->rc_rateidx_mask[band];
+ txrc.bss = true;
+ rate_control_get_rate(sdata, NULL, &txrc);
+
+ info->control.vif = vif;
+ info->control.flags |= u32_encode_bits(link->link_id,
+ IEEE80211_TX_CTRL_MLO_LINK);
+ info->flags |= IEEE80211_TX_CTL_CLEAR_PS_FILT |
+ IEEE80211_TX_CTL_ASSIGN_SEQ |
+ IEEE80211_TX_CTL_FIRST_FRAGMENT;
+}
+
+static void
+ieee80211_beacon_add_mbssid(struct sk_buff *skb, struct beacon_data *beacon,
+ u8 i)
+{
+ if (!beacon->mbssid_ies || !beacon->mbssid_ies->cnt ||
+ i > beacon->mbssid_ies->cnt)
+ return;
+
+ if (i < beacon->mbssid_ies->cnt) {
+ skb_put_data(skb, beacon->mbssid_ies->elem[i].data,
+ beacon->mbssid_ies->elem[i].len);
+
+ if (beacon->rnr_ies && beacon->rnr_ies->cnt) {
+ skb_put_data(skb, beacon->rnr_ies->elem[i].data,
+ beacon->rnr_ies->elem[i].len);
+
+ for (i = beacon->mbssid_ies->cnt; i < beacon->rnr_ies->cnt; i++)
+ skb_put_data(skb, beacon->rnr_ies->elem[i].data,
+ beacon->rnr_ies->elem[i].len);
+ }
+ return;
+ }
+
+ /* i == beacon->mbssid_ies->cnt, include all MBSSID elements */
+ for (i = 0; i < beacon->mbssid_ies->cnt; i++)
+ skb_put_data(skb, beacon->mbssid_ies->elem[i].data,
+ beacon->mbssid_ies->elem[i].len);
+}
+
+static struct sk_buff *
+__ieee80211_beacon_get_ap(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_link_data *link,
+ struct ieee80211_mutable_offsets *offs,
+ bool is_template,
+ struct beacon_data *beacon,
+ struct ieee80211_chanctx_conf *chanctx_conf,
+ u8 ema_index)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+ struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
+ struct ieee80211_if_ap *ap = &sdata->u.ap;
+ struct sk_buff *skb = NULL;
+ u16 csa_off_base = 0;
+ int mbssid_len;
+
+ if (beacon->cntdwn_counter_offsets[0]) {
+ if (!is_template)
+ ieee80211_beacon_update_cntdwn(vif, link->link_id);
+
+ ieee80211_set_beacon_cntdwn(sdata, beacon, link);
+ }
+
+ /* headroom, head length,
+ * tail length, maximum TIM length and multiple BSSID length
+ */
+ mbssid_len = ieee80211_get_mbssid_beacon_len(beacon->mbssid_ies,
+ beacon->rnr_ies,
+ ema_index);
+
+ skb = dev_alloc_skb(local->tx_headroom + beacon->head_len +
+ beacon->tail_len + 256 +
+ local->hw.extra_beacon_tailroom + mbssid_len);
+ if (!skb)
+ return NULL;
+
+ skb_reserve(skb, local->tx_headroom);
+ skb_put_data(skb, beacon->head, beacon->head_len);
+
+ ieee80211_beacon_add_tim(sdata, link, &ap->ps, skb, is_template);
+
+ if (offs) {
+ offs->tim_offset = beacon->head_len;
+ offs->tim_length = skb->len - beacon->head_len;
+ offs->cntdwn_counter_offs[0] = beacon->cntdwn_counter_offsets[0];
+
+ if (mbssid_len) {
+ ieee80211_beacon_add_mbssid(skb, beacon, ema_index);
+ offs->mbssid_off = skb->len - mbssid_len;
+ }
+
+ /* for AP the csa offsets are from tail */
+ csa_off_base = skb->len;
+ }
+
+ if (beacon->tail)
+ skb_put_data(skb, beacon->tail, beacon->tail_len);
+
+ if (ieee80211_beacon_protect(skb, local, sdata, link) < 0) {
+ dev_kfree_skb(skb);
+ return NULL;
+ }
+
+ ieee80211_beacon_get_finish(hw, vif, link, offs, beacon, skb,
+ chanctx_conf, csa_off_base);
+ return skb;
+}
+
+static bool ieee80211_s1g_need_long_beacon(struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_link_data *link)
+{
+ struct ps_data *ps = &sdata->u.ap.ps;
+
+ if (ps->sb_count == 0)
+ ps->sb_count = link->conf->s1g_long_beacon_period - 1;
+ else
+ ps->sb_count--;
+
+ return ps->sb_count == 0;
+}
+
+static struct sk_buff *
+ieee80211_s1g_short_beacon_get(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_link_data *link,
+ struct ieee80211_chanctx_conf *chanctx_conf,
+ struct s1g_short_beacon_data *sb,
+ bool is_template)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+ struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
+ struct ieee80211_if_ap *ap = &sdata->u.ap;
+ struct sk_buff *skb;
+
+ skb = dev_alloc_skb(local->tx_headroom + sb->short_head_len +
+ sb->short_tail_len + 256 +
+ local->hw.extra_beacon_tailroom);
+ if (!skb)
+ return NULL;
+
+ skb_reserve(skb, local->tx_headroom);
+ skb_put_data(skb, sb->short_head, sb->short_head_len);
+
+ ieee80211_beacon_add_tim(sdata, link, &ap->ps, skb, is_template);
+
+ if (sb->short_tail)
+ skb_put_data(skb, sb->short_tail, sb->short_tail_len);
+
+ ieee80211_beacon_get_finish(hw, vif, link, NULL, NULL, skb,
+ chanctx_conf, 0);
+ return skb;
+}
+
+static struct sk_buff *
+ieee80211_beacon_get_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+ struct ieee80211_link_data *link,
+ struct ieee80211_mutable_offsets *offs,
+ bool is_template, struct beacon_data *beacon,
+ struct ieee80211_chanctx_conf *chanctx_conf,
+ u8 ema_index, struct s1g_short_beacon_data *s1g_sb)
+{
+ struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
+
+ if (!sdata->vif.cfg.s1g || !s1g_sb ||
+ ieee80211_s1g_need_long_beacon(sdata, link))
+ return __ieee80211_beacon_get_ap(hw, vif, link, offs,
+ is_template, beacon,
+ chanctx_conf, ema_index);
+
+ return ieee80211_s1g_short_beacon_get(hw, vif, link, chanctx_conf,
+ s1g_sb, is_template);
+}
+
+static struct ieee80211_ema_beacons *
+ieee80211_beacon_get_ap_ema_list(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_link_data *link,
+ struct ieee80211_mutable_offsets *offs,
+ bool is_template, struct beacon_data *beacon,
+ struct ieee80211_chanctx_conf *chanctx_conf)
+{
+ struct ieee80211_ema_beacons *ema = NULL;
+
+ if (!beacon->mbssid_ies || !beacon->mbssid_ies->cnt)
+ return NULL;
+
+ ema = kzalloc(struct_size(ema, bcn, beacon->mbssid_ies->cnt),
+ GFP_ATOMIC);
+ if (!ema)
+ return NULL;
+
+ for (ema->cnt = 0; ema->cnt < beacon->mbssid_ies->cnt; ema->cnt++) {
+ ema->bcn[ema->cnt].skb =
+ ieee80211_beacon_get_ap(hw, vif, link,
+ &ema->bcn[ema->cnt].offs,
+ is_template, beacon,
+ chanctx_conf, ema->cnt, NULL);
+ if (!ema->bcn[ema->cnt].skb)
+ break;
+ }
+
+ if (ema->cnt == beacon->mbssid_ies->cnt)
+ return ema;
+
+ ieee80211_beacon_free_ema_list(ema);
+ return NULL;
+}
+
+#define IEEE80211_INCLUDE_ALL_MBSSID_ELEMS -1
static struct sk_buff *
__ieee80211_beacon_get(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_mutable_offsets *offs,
- bool is_template)
+ bool is_template,
+ unsigned int link_id,
+ int ema_index,
+ struct ieee80211_ema_beacons **ema_beacons)
{
struct ieee80211_local *local = hw_to_local(hw);
struct beacon_data *beacon = NULL;
struct sk_buff *skb = NULL;
- struct ieee80211_tx_info *info;
struct ieee80211_sub_if_data *sdata = NULL;
- enum nl80211_band band;
- struct ieee80211_tx_rate_control txrc;
struct ieee80211_chanctx_conf *chanctx_conf;
- int csa_off_base = 0;
+ struct ieee80211_link_data *link;
+ struct s1g_short_beacon_data *s1g_short_bcn = NULL;
rcu_read_lock();
sdata = vif_to_sdata(vif);
- chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
+ link = rcu_dereference(sdata->link[link_id]);
+ if (!link)
+ goto out;
+ chanctx_conf =
+ rcu_dereference(link->conf->chanctx_conf);
if (!ieee80211_sdata_running(sdata) || !chanctx_conf)
goto out;
@@ -4271,47 +5602,40 @@ __ieee80211_beacon_get(struct ieee80211_hw *hw,
memset(offs, 0, sizeof(*offs));
if (sdata->vif.type == NL80211_IFTYPE_AP) {
- struct ieee80211_if_ap *ap = &sdata->u.ap;
-
- beacon = rcu_dereference(ap->beacon);
- if (beacon) {
- if (beacon->csa_counter_offsets[0]) {
- if (!is_template)
- __ieee80211_csa_update_counter(beacon);
-
- ieee80211_set_csa(sdata, beacon);
- }
+ beacon = rcu_dereference(link->u.ap.beacon);
+ if (!beacon)
+ goto out;
- /*
- * headroom, head length,
- * tail length and maximum TIM length
- */
- skb = dev_alloc_skb(local->tx_headroom +
- beacon->head_len +
- beacon->tail_len + 256 +
- local->hw.extra_beacon_tailroom);
- if (!skb)
+ if (vif->cfg.s1g && link->u.ap.s1g_short_beacon) {
+ s1g_short_bcn =
+ rcu_dereference(link->u.ap.s1g_short_beacon);
+ if (!s1g_short_bcn)
goto out;
+ }
- skb_reserve(skb, local->tx_headroom);
- skb_put_data(skb, beacon->head, beacon->head_len);
-
- ieee80211_beacon_add_tim(sdata, &ap->ps, skb,
- is_template);
-
- if (offs) {
- offs->tim_offset = beacon->head_len;
- offs->tim_length = skb->len - beacon->head_len;
+ if (ema_beacons) {
+ *ema_beacons =
+ ieee80211_beacon_get_ap_ema_list(hw, vif, link,
+ offs,
+ is_template,
+ beacon,
+ chanctx_conf);
+ } else {
+ if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) {
+ if (ema_index >= beacon->mbssid_ies->cnt)
+ goto out; /* End of MBSSID elements */
- /* for AP the csa offsets are from tail */
- csa_off_base = skb->len;
+ if (ema_index <= IEEE80211_INCLUDE_ALL_MBSSID_ELEMS)
+ ema_index = beacon->mbssid_ies->cnt;
+ } else {
+ ema_index = 0;
}
- if (beacon->tail)
- skb_put_data(skb, beacon->tail,
- beacon->tail_len);
- } else
- goto out;
+ skb = ieee80211_beacon_get_ap(hw, vif, link, offs,
+ is_template, beacon,
+ chanctx_conf, ema_index,
+ s1g_short_bcn);
+ }
} else if (sdata->vif.type == NL80211_IFTYPE_ADHOC) {
struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
struct ieee80211_hdr *hdr;
@@ -4320,11 +5644,11 @@ __ieee80211_beacon_get(struct ieee80211_hw *hw,
if (!beacon)
goto out;
- if (beacon->csa_counter_offsets[0]) {
+ if (beacon->cntdwn_counter_offsets[0]) {
if (!is_template)
- __ieee80211_csa_update_counter(beacon);
+ __ieee80211_beacon_update_cntdwn(link, beacon);
- ieee80211_set_csa(sdata, beacon);
+ ieee80211_set_beacon_cntdwn(sdata, beacon, link);
}
skb = dev_alloc_skb(local->tx_headroom + beacon->head_len +
@@ -4337,6 +5661,9 @@ __ieee80211_beacon_get(struct ieee80211_hw *hw,
hdr = (struct ieee80211_hdr *) skb->data;
hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
IEEE80211_STYPE_BEACON);
+
+ ieee80211_beacon_get_finish(hw, vif, link, offs, beacon, skb,
+ chanctx_conf, 0);
} else if (ieee80211_vif_is_mesh(&sdata->vif)) {
struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
@@ -4344,16 +5671,16 @@ __ieee80211_beacon_get(struct ieee80211_hw *hw,
if (!beacon)
goto out;
- if (beacon->csa_counter_offsets[0]) {
+ if (beacon->cntdwn_counter_offsets[0]) {
if (!is_template)
/* TODO: For mesh csa_counter is in TU, so
* decrementing it by one isn't correct, but
* for now we leave it consistent with overall
* mac80211's behavior.
*/
- __ieee80211_csa_update_counter(beacon);
+ __ieee80211_beacon_update_cntdwn(link, beacon);
- ieee80211_set_csa(sdata, beacon);
+ ieee80211_set_beacon_cntdwn(sdata, beacon, link);
}
if (ifmsh->sync_ops)
@@ -4368,7 +5695,8 @@ __ieee80211_beacon_get(struct ieee80211_hw *hw,
goto out;
skb_reserve(skb, local->tx_headroom);
skb_put_data(skb, beacon->head, beacon->head_len);
- ieee80211_beacon_add_tim(sdata, &ifmsh->ps, skb, is_template);
+ ieee80211_beacon_add_tim(sdata, link, &ifmsh->ps, skb,
+ is_template);
if (offs) {
offs->tim_offset = beacon->head_len;
@@ -4376,48 +5704,13 @@ __ieee80211_beacon_get(struct ieee80211_hw *hw,
}
skb_put_data(skb, beacon->tail, beacon->tail_len);
+ ieee80211_beacon_get_finish(hw, vif, link, offs, beacon, skb,
+ chanctx_conf, 0);
} else {
WARN_ON(1);
goto out;
}
- /* CSA offsets */
- if (offs && beacon) {
- int i;
-
- for (i = 0; i < IEEE80211_MAX_CSA_COUNTERS_NUM; i++) {
- u16 csa_off = beacon->csa_counter_offsets[i];
-
- if (!csa_off)
- continue;
-
- offs->csa_counter_offs[i] = csa_off_base + csa_off;
- }
- }
-
- band = chanctx_conf->def.chan->band;
-
- info = IEEE80211_SKB_CB(skb);
-
- info->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT;
- info->flags |= IEEE80211_TX_CTL_NO_ACK;
- info->band = band;
-
- memset(&txrc, 0, sizeof(txrc));
- txrc.hw = hw;
- txrc.sband = local->hw.wiphy->bands[band];
- txrc.bss_conf = &sdata->vif.bss_conf;
- txrc.skb = skb;
- txrc.reported_rate.idx = -1;
- txrc.rate_idx_mask = sdata->rc_rateidx_mask[band];
- txrc.bss = true;
- rate_control_get_rate(sdata, NULL, &txrc);
-
- info->control.vif = vif;
-
- info->flags |= IEEE80211_TX_CTL_CLEAR_PS_FILT |
- IEEE80211_TX_CTL_ASSIGN_SEQ |
- IEEE80211_TX_CTL_FIRST_FRAGMENT;
out:
rcu_read_unlock();
return skb;
@@ -4427,21 +5720,64 @@ __ieee80211_beacon_get(struct ieee80211_hw *hw,
struct sk_buff *
ieee80211_beacon_get_template(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
- struct ieee80211_mutable_offsets *offs)
+ struct ieee80211_mutable_offsets *offs,
+ unsigned int link_id)
{
- return __ieee80211_beacon_get(hw, vif, offs, true);
+ return __ieee80211_beacon_get(hw, vif, offs, true, link_id,
+ IEEE80211_INCLUDE_ALL_MBSSID_ELEMS, NULL);
}
EXPORT_SYMBOL(ieee80211_beacon_get_template);
+struct sk_buff *
+ieee80211_beacon_get_template_ema_index(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_mutable_offsets *offs,
+ unsigned int link_id, u8 ema_index)
+{
+ return __ieee80211_beacon_get(hw, vif, offs, true, link_id, ema_index,
+ NULL);
+}
+EXPORT_SYMBOL(ieee80211_beacon_get_template_ema_index);
+
+void ieee80211_beacon_free_ema_list(struct ieee80211_ema_beacons *ema_beacons)
+{
+ u8 i;
+
+ if (!ema_beacons)
+ return;
+
+ for (i = 0; i < ema_beacons->cnt; i++)
+ kfree_skb(ema_beacons->bcn[i].skb);
+
+ kfree(ema_beacons);
+}
+EXPORT_SYMBOL(ieee80211_beacon_free_ema_list);
+
+struct ieee80211_ema_beacons *
+ieee80211_beacon_get_template_ema_list(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ unsigned int link_id)
+{
+ struct ieee80211_ema_beacons *ema_beacons = NULL;
+
+ WARN_ON(__ieee80211_beacon_get(hw, vif, NULL, true, link_id, 0,
+ &ema_beacons));
+
+ return ema_beacons;
+}
+EXPORT_SYMBOL(ieee80211_beacon_get_template_ema_list);
+
struct sk_buff *ieee80211_beacon_get_tim(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
- u16 *tim_offset, u16 *tim_length)
+ u16 *tim_offset, u16 *tim_length,
+ unsigned int link_id)
{
struct ieee80211_mutable_offsets offs = {};
- struct sk_buff *bcn = __ieee80211_beacon_get(hw, vif, &offs, false);
+ struct sk_buff *bcn = __ieee80211_beacon_get(hw, vif, &offs, false,
+ link_id,
+ IEEE80211_INCLUDE_ALL_MBSSID_ELEMS,
+ NULL);
struct sk_buff *copy;
- struct ieee80211_supported_band *sband;
- int shift;
if (!bcn)
return bcn;
@@ -4461,12 +5797,7 @@ struct sk_buff *ieee80211_beacon_get_tim(struct ieee80211_hw *hw,
if (!copy)
return bcn;
- shift = ieee80211_vif_get_shift(vif);
- sband = ieee80211_get_sband(vif_to_sdata(vif));
- if (!sband)
- return bcn;
-
- ieee80211_tx_monitor(hw_to_local(hw), copy, sband, 1, shift, false);
+ ieee80211_tx_monitor(hw_to_local(hw), copy, 1, NULL);
return bcn;
}
@@ -4475,7 +5806,6 @@ EXPORT_SYMBOL(ieee80211_beacon_get_tim);
struct sk_buff *ieee80211_proberesp_get(struct ieee80211_hw *hw,
struct ieee80211_vif *vif)
{
- struct ieee80211_if_ap *ap = NULL;
struct sk_buff *skb = NULL;
struct probe_resp *presp = NULL;
struct ieee80211_hdr *hdr;
@@ -4485,9 +5815,7 @@ struct sk_buff *ieee80211_proberesp_get(struct ieee80211_hw *hw,
return NULL;
rcu_read_lock();
-
- ap = &sdata->u.ap;
- presp = rcu_dereference(ap->probe_resp);
+ presp = rcu_dereference(sdata->deflink.u.ap.probe_resp);
if (!presp)
goto out;
@@ -4506,11 +5834,67 @@ out:
}
EXPORT_SYMBOL(ieee80211_proberesp_get);
+struct sk_buff *ieee80211_get_fils_discovery_tmpl(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif)
+{
+ struct sk_buff *skb = NULL;
+ struct fils_discovery_data *tmpl = NULL;
+ struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
+
+ if (sdata->vif.type != NL80211_IFTYPE_AP)
+ return NULL;
+
+ rcu_read_lock();
+ tmpl = rcu_dereference(sdata->deflink.u.ap.fils_discovery);
+ if (!tmpl) {
+ rcu_read_unlock();
+ return NULL;
+ }
+
+ skb = dev_alloc_skb(sdata->local->hw.extra_tx_headroom + tmpl->len);
+ if (skb) {
+ skb_reserve(skb, sdata->local->hw.extra_tx_headroom);
+ skb_put_data(skb, tmpl->data, tmpl->len);
+ }
+
+ rcu_read_unlock();
+ return skb;
+}
+EXPORT_SYMBOL(ieee80211_get_fils_discovery_tmpl);
+
+struct sk_buff *
+ieee80211_get_unsol_bcast_probe_resp_tmpl(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif)
+{
+ struct sk_buff *skb = NULL;
+ struct unsol_bcast_probe_resp_data *tmpl = NULL;
+ struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
+
+ if (sdata->vif.type != NL80211_IFTYPE_AP)
+ return NULL;
+
+ rcu_read_lock();
+ tmpl = rcu_dereference(sdata->deflink.u.ap.unsol_bcast_probe_resp);
+ if (!tmpl) {
+ rcu_read_unlock();
+ return NULL;
+ }
+
+ skb = dev_alloc_skb(sdata->local->hw.extra_tx_headroom + tmpl->len);
+ if (skb) {
+ skb_reserve(skb, sdata->local->hw.extra_tx_headroom);
+ skb_put_data(skb, tmpl->data, tmpl->len);
+ }
+
+ rcu_read_unlock();
+ return skb;
+}
+EXPORT_SYMBOL(ieee80211_get_unsol_bcast_probe_resp_tmpl);
+
struct sk_buff *ieee80211_pspoll_get(struct ieee80211_hw *hw,
struct ieee80211_vif *vif)
{
struct ieee80211_sub_if_data *sdata;
- struct ieee80211_if_managed *ifmgd;
struct ieee80211_pspoll *pspoll;
struct ieee80211_local *local;
struct sk_buff *skb;
@@ -4519,7 +5903,6 @@ struct sk_buff *ieee80211_pspoll_get(struct ieee80211_hw *hw,
return NULL;
sdata = vif_to_sdata(vif);
- ifmgd = &sdata->u.mgd;
local = sdata->local;
skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*pspoll));
@@ -4531,12 +5914,12 @@ struct sk_buff *ieee80211_pspoll_get(struct ieee80211_hw *hw,
pspoll = skb_put_zero(skb, sizeof(*pspoll));
pspoll->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
IEEE80211_STYPE_PSPOLL);
- pspoll->aid = cpu_to_le16(ifmgd->aid);
+ pspoll->aid = cpu_to_le16(sdata->vif.cfg.aid);
/* aid in PS-Poll has its two MSBs each set to 1 */
pspoll->aid |= cpu_to_le16(1 << 15 | 1 << 14);
- memcpy(pspoll->bssid, ifmgd->bssid, ETH_ALEN);
+ memcpy(pspoll->bssid, sdata->deflink.u.mgd.bssid, ETH_ALEN);
memcpy(pspoll->ta, vif->addr, ETH_ALEN);
return skb;
@@ -4545,35 +5928,39 @@ EXPORT_SYMBOL(ieee80211_pspoll_get);
struct sk_buff *ieee80211_nullfunc_get(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
- bool qos_ok)
+ int link_id, bool qos_ok)
{
+ struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
+ struct ieee80211_local *local = sdata->local;
+ struct ieee80211_link_data *link = NULL;
struct ieee80211_hdr_3addr *nullfunc;
- struct ieee80211_sub_if_data *sdata;
- struct ieee80211_if_managed *ifmgd;
- struct ieee80211_local *local;
struct sk_buff *skb;
bool qos = false;
if (WARN_ON(vif->type != NL80211_IFTYPE_STATION))
return NULL;
- sdata = vif_to_sdata(vif);
- ifmgd = &sdata->u.mgd;
- local = sdata->local;
+ skb = dev_alloc_skb(local->hw.extra_tx_headroom +
+ sizeof(*nullfunc) + 2);
+ if (!skb)
+ return NULL;
+ rcu_read_lock();
if (qos_ok) {
struct sta_info *sta;
- rcu_read_lock();
- sta = sta_info_get(sdata, ifmgd->bssid);
+ sta = sta_info_get(sdata, vif->cfg.ap_addr);
qos = sta && sta->sta.wme;
- rcu_read_unlock();
}
- skb = dev_alloc_skb(local->hw.extra_tx_headroom +
- sizeof(*nullfunc) + 2);
- if (!skb)
- return NULL;
+ if (link_id >= 0) {
+ link = rcu_dereference(sdata->link[link_id]);
+ if (WARN_ON_ONCE(!link)) {
+ rcu_read_unlock();
+ kfree_skb(skb);
+ return NULL;
+ }
+ }
skb_reserve(skb, local->hw.extra_tx_headroom);
@@ -4594,9 +5981,16 @@ struct sk_buff *ieee80211_nullfunc_get(struct ieee80211_hw *hw,
skb_put_data(skb, &qoshdr, sizeof(qoshdr));
}
- memcpy(nullfunc->addr1, ifmgd->bssid, ETH_ALEN);
- memcpy(nullfunc->addr2, vif->addr, ETH_ALEN);
- memcpy(nullfunc->addr3, ifmgd->bssid, ETH_ALEN);
+ if (link) {
+ memcpy(nullfunc->addr1, link->conf->bssid, ETH_ALEN);
+ memcpy(nullfunc->addr2, link->conf->addr, ETH_ALEN);
+ memcpy(nullfunc->addr3, link->conf->bssid, ETH_ALEN);
+ } else {
+ memcpy(nullfunc->addr1, vif->cfg.ap_addr, ETH_ALEN);
+ memcpy(nullfunc->addr2, vif->addr, ETH_ALEN);
+ memcpy(nullfunc->addr3, vif->cfg.ap_addr, ETH_ALEN);
+ }
+ rcu_read_unlock();
return skb;
}
@@ -4686,14 +6080,14 @@ ieee80211_get_buffered_bc(struct ieee80211_hw *hw,
sdata = vif_to_sdata(vif);
rcu_read_lock();
- chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
+ chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf);
if (!chanctx_conf)
goto out;
if (sdata->vif.type == NL80211_IFTYPE_AP) {
struct beacon_data *beacon =
- rcu_dereference(sdata->u.ap.beacon);
+ rcu_dereference(sdata->deflink.u.ap.beacon);
if (!beacon || !beacon->head)
goto out;
@@ -4753,7 +6147,7 @@ int ieee80211_reserve_tid(struct ieee80211_sta *pubsta, u8 tid)
int ret;
u32 queues;
- lockdep_assert_held(&local->sta_mtx);
+ lockdep_assert_wiphy(local->hw.wiphy);
/* only some cases are supported right now */
switch (sdata->vif.type) {
@@ -4814,7 +6208,7 @@ void ieee80211_unreserve_tid(struct ieee80211_sta *pubsta, u8 tid)
struct sta_info *sta = container_of(pubsta, struct sta_info, sta);
struct ieee80211_sub_if_data *sdata = sta->sdata;
- lockdep_assert_held(&sdata->local->sta_mtx);
+ lockdep_assert_wiphy(sdata->local->hw.wiphy);
/* only some cases are supported right now */
switch (sdata->vif.type) {
@@ -4837,10 +6231,12 @@ void ieee80211_unreserve_tid(struct ieee80211_sta *pubsta, u8 tid)
EXPORT_SYMBOL(ieee80211_unreserve_tid);
void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
- struct sk_buff *skb, int tid,
- enum nl80211_band band, u32 txdata_flags)
+ struct sk_buff *skb, int tid, int link_id,
+ enum nl80211_band band)
{
+ const struct ieee80211_hdr *hdr = (void *)skb->data;
int ac = ieee80211_ac_from_tid(tid);
+ unsigned int link;
skb_reset_mac_header(skb);
skb_set_queue_mapping(skb, ac);
@@ -4848,6 +6244,38 @@ void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
skb->dev = sdata->dev;
+ BUILD_BUG_ON(IEEE80211_LINK_UNSPECIFIED < IEEE80211_MLD_MAX_NUM_LINKS);
+ BUILD_BUG_ON(!FIELD_FIT(IEEE80211_TX_CTRL_MLO_LINK,
+ IEEE80211_LINK_UNSPECIFIED));
+
+ if (!ieee80211_vif_is_mld(&sdata->vif)) {
+ link = 0;
+ } else if (link_id >= 0) {
+ link = link_id;
+ } else if (memcmp(sdata->vif.addr, hdr->addr2, ETH_ALEN) == 0) {
+ /* address from the MLD */
+ link = IEEE80211_LINK_UNSPECIFIED;
+ } else {
+ /* otherwise must be addressed from a link */
+ rcu_read_lock();
+ for (link = 0; link < ARRAY_SIZE(sdata->vif.link_conf); link++) {
+ struct ieee80211_bss_conf *link_conf;
+
+ link_conf = rcu_dereference(sdata->vif.link_conf[link]);
+ if (!link_conf)
+ continue;
+ if (memcmp(link_conf->addr, hdr->addr2, ETH_ALEN) == 0)
+ break;
+ }
+ rcu_read_unlock();
+
+ if (WARN_ON_ONCE(link == ARRAY_SIZE(sdata->vif.link_conf)))
+ link = ffs(sdata->vif.active_links) - 1;
+ }
+
+ IEEE80211_SKB_CB(skb)->control.flags |=
+ u32_encode_bits(link, IEEE80211_TX_CTRL_MLO_LINK);
+
/*
* The other path calling ieee80211_xmit is from the tasklet,
* and while we can handle concurrent transmissions locking
@@ -4855,19 +6283,56 @@ void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
*/
local_bh_disable();
IEEE80211_SKB_CB(skb)->band = band;
- ieee80211_xmit(sdata, NULL, skb, txdata_flags);
+ ieee80211_xmit(sdata, NULL, skb);
local_bh_enable();
}
+void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata,
+ struct sk_buff *skb, int tid, int link_id)
+{
+ struct ieee80211_chanctx_conf *chanctx_conf;
+ enum nl80211_band band;
+
+ rcu_read_lock();
+ if (sdata->vif.type == NL80211_IFTYPE_NAN) {
+ band = NUM_NL80211_BANDS;
+ } else if (!ieee80211_vif_is_mld(&sdata->vif)) {
+ WARN_ON(link_id >= 0);
+ chanctx_conf =
+ rcu_dereference(sdata->vif.bss_conf.chanctx_conf);
+ if (WARN_ON(!chanctx_conf)) {
+ rcu_read_unlock();
+ kfree_skb(skb);
+ return;
+ }
+ band = chanctx_conf->def.chan->band;
+ } else {
+ WARN_ON(link_id >= 0 &&
+ !(sdata->vif.active_links & BIT(link_id)));
+ /* MLD transmissions must not rely on the band */
+ band = 0;
+ }
+
+ __ieee80211_tx_skb_tid_band(sdata, skb, tid, link_id, band);
+ rcu_read_unlock();
+}
+
int ieee80211_tx_control_port(struct wiphy *wiphy, struct net_device *dev,
const u8 *buf, size_t len,
- const u8 *dest, __be16 proto, bool unencrypted)
+ const u8 *dest, __be16 proto, bool unencrypted,
+ int link_id, u64 *cookie)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_local *local = sdata->local;
+ struct sta_info *sta;
struct sk_buff *skb;
struct ethhdr *ehdr;
- u32 flags;
+ u32 ctrl_flags = 0;
+ u32 flags = 0;
+ int err;
+
+ /* mutex lock is only needed for incrementing the cookie counter */
+ lockdep_assert_wiphy(local->hw.wiphy);
/* Only accept CONTROL_PORT_PROTOCOL configured in CONNECT/ASSOCIATE
* or Pre-Authentication
@@ -4876,10 +6341,17 @@ int ieee80211_tx_control_port(struct wiphy *wiphy, struct net_device *dev,
proto != cpu_to_be16(ETH_P_PREAUTH))
return -EINVAL;
+ if (proto == sdata->control_port_protocol)
+ ctrl_flags |= IEEE80211_TX_CTRL_PORT_CTRL_PROTO |
+ IEEE80211_TX_CTRL_SKIP_MPATH_LOOKUP;
+
if (unencrypted)
- flags = IEEE80211_TX_INTFL_DONT_ENCRYPT;
- else
- flags = 0;
+ flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT;
+
+ if (cookie)
+ ctrl_flags |= IEEE80211_TX_CTL_REQ_TX_STATUS;
+
+ flags |= IEEE80211_TX_INTFL_NL80211_FRAME_TX;
skb = dev_alloc_skb(local->hw.extra_tx_headroom +
sizeof(struct ethhdr) + len);
@@ -4892,16 +6364,98 @@ int ieee80211_tx_control_port(struct wiphy *wiphy, struct net_device *dev,
ehdr = skb_push(skb, sizeof(struct ethhdr));
memcpy(ehdr->h_dest, dest, ETH_ALEN);
- memcpy(ehdr->h_source, sdata->vif.addr, ETH_ALEN);
+
+ /* we may override the SA for MLO STA later */
+ if (link_id < 0) {
+ ctrl_flags |= u32_encode_bits(IEEE80211_LINK_UNSPECIFIED,
+ IEEE80211_TX_CTRL_MLO_LINK);
+ memcpy(ehdr->h_source, sdata->vif.addr, ETH_ALEN);
+ } else {
+ struct ieee80211_bss_conf *link_conf;
+
+ ctrl_flags |= u32_encode_bits(link_id,
+ IEEE80211_TX_CTRL_MLO_LINK);
+
+ rcu_read_lock();
+ link_conf = rcu_dereference(sdata->vif.link_conf[link_id]);
+ if (!link_conf) {
+ dev_kfree_skb(skb);
+ rcu_read_unlock();
+ return -ENOLINK;
+ }
+ memcpy(ehdr->h_source, link_conf->addr, ETH_ALEN);
+ rcu_read_unlock();
+ }
+
ehdr->h_proto = proto;
skb->dev = dev;
+ skb->protocol = proto;
+ skb_reset_network_header(skb);
+ skb_reset_mac_header(skb);
+
+ if (local->hw.queues < IEEE80211_NUM_ACS)
+ goto start_xmit;
+
+ /* update QoS header to prioritize control port frames if possible,
+ * prioritization also happens for control port frames send over
+ * AF_PACKET
+ */
+ rcu_read_lock();
+ err = ieee80211_lookup_ra_sta(sdata, skb, &sta);
+ if (err) {
+ dev_kfree_skb(skb);
+ rcu_read_unlock();
+ return err;
+ }
+
+ if (!IS_ERR(sta)) {
+ u16 queue = ieee80211_select_queue(sdata, sta, skb);
+
+ skb_set_queue_mapping(skb, queue);
+
+ /*
+ * for MLO STA, the SA should be the AP MLD address, but
+ * the link ID has been selected already
+ */
+ if (sta && sta->sta.mlo)
+ memcpy(ehdr->h_source, sdata->vif.addr, ETH_ALEN);
+ }
+ rcu_read_unlock();
+
+start_xmit:
+ local_bh_disable();
+ __ieee80211_subif_start_xmit(skb, skb->dev, flags, ctrl_flags, cookie);
+ local_bh_enable();
+
+ return 0;
+}
+
+int ieee80211_probe_mesh_link(struct wiphy *wiphy, struct net_device *dev,
+ const u8 *buf, size_t len)
+{
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ struct ieee80211_local *local = sdata->local;
+ struct sk_buff *skb;
+
+ skb = dev_alloc_skb(local->hw.extra_tx_headroom + len +
+ 30 + /* header size */
+ 18); /* 11s header size */
+ if (!skb)
+ return -ENOMEM;
+
+ skb_reserve(skb, local->hw.extra_tx_headroom);
+ skb_put_data(skb, buf, len);
+
+ skb->dev = dev;
skb->protocol = htons(ETH_P_802_3);
skb_reset_network_header(skb);
skb_reset_mac_header(skb);
local_bh_disable();
- __ieee80211_subif_start_xmit(skb, skb->dev, flags);
+ __ieee80211_subif_start_xmit(skb, skb->dev, 0,
+ IEEE80211_TX_CTRL_SKIP_MPATH_LOOKUP,
+ NULL);
local_bh_enable();
return 0;
generated by cgit (git 2.34.1) at 2025-12-25 16:58:09 +0000