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-rw-r--r--net/mac80211/cfg.c15
-rw-r--r--net/mac80211/mlme.c5
-rw-r--r--net/mac80211/rx.c125
-rw-r--r--net/mac80211/trace.h2
-rw-r--r--net/wireless/nl80211.c36
-rw-r--r--net/wireless/reg.c36
-rw-r--r--net/wireless/trace.h16
7 files changed, 194 insertions, 41 deletions
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 06185940cbb6..a43a14863ecb 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -3158,6 +3158,12 @@ __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
goto out;
}
+ ch_switch.timestamp = 0;
+ ch_switch.device_timestamp = 0;
+ ch_switch.block_tx = params->block_tx;
+ ch_switch.chandef = params->chandef;
+ ch_switch.count = params->count;
+
err = drv_pre_channel_switch(sdata, &ch_switch);
if (err)
goto out;
@@ -3175,12 +3181,6 @@ __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
goto out;
}
- ch_switch.timestamp = 0;
- ch_switch.device_timestamp = 0;
- ch_switch.block_tx = params->block_tx;
- ch_switch.chandef = params->chandef;
- ch_switch.count = params->count;
-
err = ieee80211_set_csa_beacon(sdata, params, &changed);
if (err) {
ieee80211_vif_unreserve_chanctx(sdata);
@@ -3195,6 +3195,9 @@ __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
ieee80211_stop_vif_queues(local, sdata,
IEEE80211_QUEUE_STOP_REASON_CSA);
+ cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef,
+ params->count);
+
if (changed) {
ieee80211_bss_info_change_notify(sdata, changed);
drv_channel_switch_beacon(sdata, &params->chandef);
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 213a420704a6..243539878991 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -1049,6 +1049,8 @@ static void ieee80211_chswitch_post_beacon(struct ieee80211_sub_if_data *sdata)
sdata->csa_block_tx = false;
}
+ cfg80211_ch_switch_notify(sdata->dev, &sdata->reserved_chandef);
+
sdata->vif.csa_active = false;
ifmgd->csa_waiting_bcn = false;
@@ -1205,6 +1207,9 @@ ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
IEEE80211_QUEUE_STOP_REASON_CSA);
mutex_unlock(&local->mtx);
+ cfg80211_ch_switch_started_notify(sdata->dev, &csa_ie.chandef,
+ csa_ie.count);
+
if (local->ops->channel_switch) {
/* use driver's channel switch callback */
drv_channel_switch(local, sdata, &ch_switch);
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index bc63aa0c5401..0f4297e2aae2 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -39,7 +39,8 @@
* only useful for monitoring.
*/
static struct sk_buff *remove_monitor_info(struct ieee80211_local *local,
- struct sk_buff *skb)
+ struct sk_buff *skb,
+ unsigned int rtap_vendor_space)
{
if (local->hw.flags & IEEE80211_HW_RX_INCLUDES_FCS) {
if (likely(skb->len > FCS_LEN))
@@ -52,20 +53,25 @@ static struct sk_buff *remove_monitor_info(struct ieee80211_local *local,
}
}
+ __pskb_pull(skb, rtap_vendor_space);
+
return skb;
}
-static inline bool should_drop_frame(struct sk_buff *skb, int present_fcs_len)
+static inline bool should_drop_frame(struct sk_buff *skb, int present_fcs_len,
+ unsigned int rtap_vendor_space)
{
struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
- struct ieee80211_hdr *hdr = (void *)skb->data;
+ struct ieee80211_hdr *hdr;
+
+ hdr = (void *)(skb->data + rtap_vendor_space);
if (status->flag & (RX_FLAG_FAILED_FCS_CRC |
RX_FLAG_FAILED_PLCP_CRC |
RX_FLAG_AMPDU_IS_ZEROLEN))
return true;
- if (unlikely(skb->len < 16 + present_fcs_len))
+ if (unlikely(skb->len < 16 + present_fcs_len + rtap_vendor_space))
return true;
if (ieee80211_is_ctl(hdr->frame_control) &&
@@ -77,8 +83,9 @@ static inline bool should_drop_frame(struct sk_buff *skb, int present_fcs_len)
}
static int
-ieee80211_rx_radiotap_space(struct ieee80211_local *local,
- struct ieee80211_rx_status *status)
+ieee80211_rx_radiotap_hdrlen(struct ieee80211_local *local,
+ struct ieee80211_rx_status *status,
+ struct sk_buff *skb)
{
int len;
@@ -121,6 +128,21 @@ ieee80211_rx_radiotap_space(struct ieee80211_local *local,
len += 2 * hweight8(status->chains);
}
+ if (status->flag & RX_FLAG_RADIOTAP_VENDOR_DATA) {
+ struct ieee80211_vendor_radiotap *rtap = (void *)skb->data;
+
+ /* vendor presence bitmap */
+ len += 4;
+ /* alignment for fixed 6-byte vendor data header */
+ len = ALIGN(len, 2);
+ /* vendor data header */
+ len += 6;
+ if (WARN_ON(rtap->align == 0))
+ rtap->align = 1;
+ len = ALIGN(len, rtap->align);
+ len += rtap->len + rtap->pad;
+ }
+
return len;
}
@@ -144,13 +166,20 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local,
u16 channel_flags = 0;
int mpdulen, chain;
unsigned long chains = status->chains;
+ struct ieee80211_vendor_radiotap rtap = {};
+
+ if (status->flag & RX_FLAG_RADIOTAP_VENDOR_DATA) {
+ rtap = *(struct ieee80211_vendor_radiotap *)skb->data;
+ /* rtap.len and rtap.pad are undone immediately */
+ skb_pull(skb, sizeof(rtap) + rtap.len + rtap.pad);
+ }
mpdulen = skb->len;
if (!(has_fcs && (local->hw.flags & IEEE80211_HW_RX_INCLUDES_FCS)))
mpdulen += FCS_LEN;
rthdr = (struct ieee80211_radiotap_header *)skb_push(skb, rtap_len);
- memset(rthdr, 0, rtap_len);
+ memset(rthdr, 0, rtap_len - rtap.len - rtap.pad);
it_present = &rthdr->it_present;
/* radiotap header, set always present flags */
@@ -172,6 +201,14 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local,
BIT(IEEE80211_RADIOTAP_DBM_ANTSIGNAL);
}
+ if (status->flag & RX_FLAG_RADIOTAP_VENDOR_DATA) {
+ it_present_val |= BIT(IEEE80211_RADIOTAP_VENDOR_NAMESPACE) |
+ BIT(IEEE80211_RADIOTAP_EXT);
+ put_unaligned_le32(it_present_val, it_present);
+ it_present++;
+ it_present_val = rtap.present;
+ }
+
put_unaligned_le32(it_present_val, it_present);
pos = (void *)(it_present + 1);
@@ -366,6 +403,22 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local,
*pos++ = status->chain_signal[chain];
*pos++ = chain;
}
+
+ if (status->flag & RX_FLAG_RADIOTAP_VENDOR_DATA) {
+ /* ensure 2 byte alignment for the vendor field as required */
+ if ((pos - (u8 *)rthdr) & 1)
+ *pos++ = 0;
+ *pos++ = rtap.oui[0];
+ *pos++ = rtap.oui[1];
+ *pos++ = rtap.oui[2];
+ *pos++ = rtap.subns;
+ put_unaligned_le16(rtap.len, pos);
+ pos += 2;
+ /* align the actual payload as requested */
+ while ((pos - (u8 *)rthdr) & (rtap.align - 1))
+ *pos++ = 0;
+ /* data (and possible padding) already follows */
+ }
}
/*
@@ -379,10 +432,17 @@ ieee80211_rx_monitor(struct ieee80211_local *local, struct sk_buff *origskb,
{
struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(origskb);
struct ieee80211_sub_if_data *sdata;
- int needed_headroom;
+ int rt_hdrlen, needed_headroom;
struct sk_buff *skb, *skb2;
struct net_device *prev_dev = NULL;
int present_fcs_len = 0;
+ unsigned int rtap_vendor_space = 0;
+
+ if (unlikely(status->flag & RX_FLAG_RADIOTAP_VENDOR_DATA)) {
+ struct ieee80211_vendor_radiotap *rtap = (void *)origskb->data;
+
+ rtap_vendor_space = sizeof(*rtap) + rtap->len + rtap->pad;
+ }
/*
* First, we may need to make a copy of the skb because
@@ -396,25 +456,27 @@ ieee80211_rx_monitor(struct ieee80211_local *local, struct sk_buff *origskb,
if (local->hw.flags & IEEE80211_HW_RX_INCLUDES_FCS)
present_fcs_len = FCS_LEN;
- /* ensure hdr->frame_control is in skb head */
- if (!pskb_may_pull(origskb, 2)) {
+ /* ensure hdr->frame_control and vendor radiotap data are in skb head */
+ if (!pskb_may_pull(origskb, 2 + rtap_vendor_space)) {
dev_kfree_skb(origskb);
return NULL;
}
if (!local->monitors) {
- if (should_drop_frame(origskb, present_fcs_len)) {
+ if (should_drop_frame(origskb, present_fcs_len,
+ rtap_vendor_space)) {
dev_kfree_skb(origskb);
return NULL;
}
- return remove_monitor_info(local, origskb);
+ return remove_monitor_info(local, origskb, rtap_vendor_space);
}
/* room for the radiotap header based on driver features */
- needed_headroom = ieee80211_rx_radiotap_space(local, status);
+ rt_hdrlen = ieee80211_rx_radiotap_hdrlen(local, status, origskb);
+ needed_headroom = rt_hdrlen - rtap_vendor_space;
- if (should_drop_frame(origskb, present_fcs_len)) {
+ if (should_drop_frame(origskb, present_fcs_len, rtap_vendor_space)) {
/* only need to expand headroom if necessary */
skb = origskb;
origskb = NULL;
@@ -438,15 +500,15 @@ ieee80211_rx_monitor(struct ieee80211_local *local, struct sk_buff *origskb,
*/
skb = skb_copy_expand(origskb, needed_headroom, 0, GFP_ATOMIC);
- origskb = remove_monitor_info(local, origskb);
+ origskb = remove_monitor_info(local, origskb,
+ rtap_vendor_space);
if (!skb)
return origskb;
}
/* prepend radiotap information */
- ieee80211_add_rx_radiotap_header(local, skb, rate, needed_headroom,
- true);
+ ieee80211_add_rx_radiotap_header(local, skb, rate, rt_hdrlen, true);
skb_reset_mac_header(skb);
skb->ip_summed = CHECKSUM_UNNECESSARY;
@@ -985,7 +1047,7 @@ static void ieee80211_rx_reorder_ampdu(struct ieee80211_rx_data *rx,
}
static ieee80211_rx_result debug_noinline
-ieee80211_rx_h_check(struct ieee80211_rx_data *rx)
+ieee80211_rx_h_check_dup(struct ieee80211_rx_data *rx)
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)rx->skb->data;
struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(rx->skb);
@@ -994,10 +1056,16 @@ ieee80211_rx_h_check(struct ieee80211_rx_data *rx)
* Drop duplicate 802.11 retransmissions
* (IEEE 802.11-2012: 9.3.2.10 "Duplicate detection and recovery")
*/
- if (rx->skb->len >= 24 && rx->sta &&
- !ieee80211_is_ctl(hdr->frame_control) &&
- !ieee80211_is_qos_nullfunc(hdr->frame_control) &&
- !is_multicast_ether_addr(hdr->addr1)) {
+
+ if (rx->skb->len < 24)
+ return RX_CONTINUE;
+
+ if (ieee80211_is_ctl(hdr->frame_control) ||
+ ieee80211_is_qos_nullfunc(hdr->frame_control) ||
+ is_multicast_ether_addr(hdr->addr1))
+ return RX_CONTINUE;
+
+ if (rx->sta) {
if (unlikely(ieee80211_has_retry(hdr->frame_control) &&
rx->sta->last_seq_ctrl[rx->seqno_idx] ==
hdr->seq_ctrl)) {
@@ -1011,6 +1079,14 @@ ieee80211_rx_h_check(struct ieee80211_rx_data *rx)
}
}
+ return RX_CONTINUE;
+}
+
+static ieee80211_rx_result debug_noinline
+ieee80211_rx_h_check(struct ieee80211_rx_data *rx)
+{
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)rx->skb->data;
+
if (unlikely(rx->skb->len < 16)) {
I802_DEBUG_INC(rx->local->rx_handlers_drop_short);
return RX_DROP_MONITOR;
@@ -2892,8 +2968,10 @@ static void ieee80211_rx_cooked_monitor(struct ieee80211_rx_data *rx,
if (!local->cooked_mntrs)
goto out_free_skb;
+ /* vendor data is long removed here */
+ status->flag &= ~RX_FLAG_RADIOTAP_VENDOR_DATA;
/* room for the radiotap header based on driver features */
- needed_headroom = ieee80211_rx_radiotap_space(local, status);
+ needed_headroom = ieee80211_rx_radiotap_hdrlen(local, status, skb);
if (skb_headroom(skb) < needed_headroom &&
pskb_expand_head(skb, needed_headroom, 0, GFP_ATOMIC))
@@ -3046,6 +3124,7 @@ static void ieee80211_invoke_rx_handlers(struct ieee80211_rx_data *rx)
goto rxh_next; \
} while (0);
+ CALL_RXH(ieee80211_rx_h_check_dup)
CALL_RXH(ieee80211_rx_h_check)
ieee80211_rx_reorder_ampdu(rx, &reorder_release);
diff --git a/net/mac80211/trace.h b/net/mac80211/trace.h
index 809a4983eb4a..96847e788488 100644
--- a/net/mac80211/trace.h
+++ b/net/mac80211/trace.h
@@ -2140,6 +2140,7 @@ TRACE_EVENT(drv_pre_channel_switch,
VIF_ENTRY
CHANDEF_ENTRY
__field(u64, timestamp)
+ __field(u32, device_timestamp)
__field(bool, block_tx)
__field(u8, count)
),
@@ -2149,6 +2150,7 @@ TRACE_EVENT(drv_pre_channel_switch,
VIF_ASSIGN;
CHANDEF_ASSIGN(&ch_switch->chandef)
__entry->timestamp = ch_switch->timestamp;
+ __entry->device_timestamp = ch_switch->device_timestamp;
__entry->block_tx = ch_switch->block_tx;
__entry->count = ch_switch->count;
),
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 1a31736914e5..d0a8361b3395 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -4453,7 +4453,7 @@ static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
void *hdr;
struct nlattr *pinfoattr;
- hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
+ hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_MPATH);
if (!hdr)
return -1;
@@ -11653,7 +11653,9 @@ EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
struct net_device *netdev,
struct cfg80211_chan_def *chandef,
- gfp_t gfp)
+ gfp_t gfp,
+ enum nl80211_commands notif,
+ u8 count)
{
struct sk_buff *msg;
void *hdr;
@@ -11662,7 +11664,7 @@ static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
if (!msg)
return;
- hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
+ hdr = nl80211hdr_put(msg, 0, 0, 0, notif);
if (!hdr) {
nlmsg_free(msg);
return;
@@ -11674,6 +11676,10 @@ static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
if (nl80211_send_chandef(msg, chandef))
goto nla_put_failure;
+ if ((notif == NL80211_CMD_CH_SWITCH_STARTED_NOTIFY) &&
+ (nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, count)))
+ goto nla_put_failure;
+
genlmsg_end(msg, hdr);
genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
@@ -11696,18 +11702,28 @@ void cfg80211_ch_switch_notify(struct net_device *dev,
trace_cfg80211_ch_switch_notify(dev, chandef);
- if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
- wdev->iftype != NL80211_IFTYPE_P2P_GO &&
- wdev->iftype != NL80211_IFTYPE_ADHOC &&
- wdev->iftype != NL80211_IFTYPE_MESH_POINT))
- return;
-
wdev->chandef = *chandef;
wdev->preset_chandef = *chandef;
- nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL);
+ nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
+ NL80211_CMD_CH_SWITCH_NOTIFY, 0);
}
EXPORT_SYMBOL(cfg80211_ch_switch_notify);
+void cfg80211_ch_switch_started_notify(struct net_device *dev,
+ struct cfg80211_chan_def *chandef,
+ u8 count)
+{
+ struct wireless_dev *wdev = dev->ieee80211_ptr;
+ struct wiphy *wiphy = wdev->wiphy;
+ struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
+
+ trace_cfg80211_ch_switch_started_notify(dev, chandef);
+
+ nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
+ NL80211_CMD_CH_SWITCH_STARTED_NOTIFY, count);
+}
+EXPORT_SYMBOL(cfg80211_ch_switch_started_notify);
+
void cfg80211_cqm_txe_notify(struct net_device *dev,
const u8 *peer, u32 num_packets,
u32 rate, u32 intvl, gfp_t gfp)
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index b725a31a4751..7449a8c0f9fd 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -573,8 +573,9 @@ static const struct ieee80211_regdomain *reg_get_regdomain(struct wiphy *wiphy)
return get_cfg80211_regdom();
}
-unsigned int reg_get_max_bandwidth(const struct ieee80211_regdomain *rd,
- const struct ieee80211_reg_rule *rule)
+static unsigned int
+reg_get_max_bandwidth_from_range(const struct ieee80211_regdomain *rd,
+ const struct ieee80211_reg_rule *rule)
{
const struct ieee80211_freq_range *freq_range = &rule->freq_range;
const struct ieee80211_freq_range *freq_range_tmp;
@@ -622,6 +623,27 @@ unsigned int reg_get_max_bandwidth(const struct ieee80211_regdomain *rd,
return end_freq - start_freq;
}
+unsigned int reg_get_max_bandwidth(const struct ieee80211_regdomain *rd,
+ const struct ieee80211_reg_rule *rule)
+{
+ unsigned int bw = reg_get_max_bandwidth_from_range(rd, rule);
+
+ if (rule->flags & NL80211_RRF_NO_160MHZ)
+ bw = min_t(unsigned int, bw, MHZ_TO_KHZ(80));
+ if (rule->flags & NL80211_RRF_NO_80MHZ)
+ bw = min_t(unsigned int, bw, MHZ_TO_KHZ(40));
+
+ /*
+ * HT40+/HT40- limits are handled per-channel. Only limit BW if both
+ * are not allowed.
+ */
+ if (rule->flags & NL80211_RRF_NO_HT40MINUS &&
+ rule->flags & NL80211_RRF_NO_HT40PLUS)
+ bw = min_t(unsigned int, bw, MHZ_TO_KHZ(20));
+
+ return bw;
+}
+
/* Sanity check on a regulatory rule */
static bool is_valid_reg_rule(const struct ieee80211_reg_rule *rule)
{
@@ -946,6 +968,16 @@ static u32 map_regdom_flags(u32 rd_flags)
channel_flags |= IEEE80211_CHAN_NO_OFDM;
if (rd_flags & NL80211_RRF_NO_OUTDOOR)
channel_flags |= IEEE80211_CHAN_INDOOR_ONLY;
+ if (rd_flags & NL80211_RRF_GO_CONCURRENT)
+ channel_flags |= IEEE80211_CHAN_GO_CONCURRENT;
+ if (rd_flags & NL80211_RRF_NO_HT40MINUS)
+ channel_flags |= IEEE80211_CHAN_NO_HT40MINUS;
+ if (rd_flags & NL80211_RRF_NO_HT40PLUS)
+ channel_flags |= IEEE80211_CHAN_NO_HT40PLUS;
+ if (rd_flags & NL80211_RRF_NO_80MHZ)
+ channel_flags |= IEEE80211_CHAN_NO_80MHZ;
+ if (rd_flags & NL80211_RRF_NO_160MHZ)
+ channel_flags |= IEEE80211_CHAN_NO_160MHZ;
return channel_flags;
}
diff --git a/net/wireless/trace.h b/net/wireless/trace.h
index 277a85df910e..6e25370d3ce7 100644
--- a/net/wireless/trace.h
+++ b/net/wireless/trace.h
@@ -2355,6 +2355,22 @@ TRACE_EVENT(cfg80211_ch_switch_notify,
NETDEV_PR_ARG, CHAN_DEF_PR_ARG)
);
+TRACE_EVENT(cfg80211_ch_switch_started_notify,
+ TP_PROTO(struct net_device *netdev,
+ struct cfg80211_chan_def *chandef),
+ TP_ARGS(netdev, chandef),
+ TP_STRUCT__entry(
+ NETDEV_ENTRY
+ CHAN_DEF_ENTRY
+ ),
+ TP_fast_assign(
+ NETDEV_ASSIGN;
+ CHAN_DEF_ASSIGN(chandef);
+ ),
+ TP_printk(NETDEV_PR_FMT ", " CHAN_DEF_PR_FMT,
+ NETDEV_PR_ARG, CHAN_DEF_PR_ARG)
+);
+
TRACE_EVENT(cfg80211_radar_event,
TP_PROTO(struct wiphy *wiphy, struct cfg80211_chan_def *chandef),
TP_ARGS(wiphy, chandef),
generated by cgit (git 2.34.1) at 2025-12-31 20:11:30 +0000