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-rw-r--r--net/mac80211/ieee80211_i.h11
-rw-r--r--net/mac80211/mlme.c99
-rw-r--r--net/mac80211/rx.c5
-rw-r--r--net/mac80211/spectmgmt.c101
4 files changed, 105 insertions, 111 deletions
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 3241e76eece7..be9446551cf6 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -934,6 +934,9 @@ void ieee80211_send_pspoll(struct ieee80211_local *local,
void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency);
int ieee80211_max_network_latency(struct notifier_block *nb,
unsigned long data, void *dummy);
+void ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_channel_sw_ie *sw_elem,
+ struct ieee80211_bss *bss);
/* IBSS code */
void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local);
@@ -1031,14 +1034,6 @@ int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
struct ieee80211_mgmt *mgmt,
size_t len);
-void ieee80211_chswitch_timer(unsigned long data);
-void ieee80211_chswitch_work(struct work_struct *work);
-void ieee80211_process_chanswitch(struct ieee80211_sub_if_data *sdata,
- struct ieee80211_channel_sw_ie *sw_elem,
- struct ieee80211_bss *bss);
-void ieee80211_handle_pwr_constr(struct ieee80211_sub_if_data *sdata,
- u16 capab_info, u8 *pwr_constr_elem,
- u8 pwr_constr_elem_len);
/* Suspend/resume and hw reconfiguration */
int ieee80211_reconfig(struct ieee80211_local *local);
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 47bc3030ca87..41f3c1f98cc3 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -486,6 +486,103 @@ void ieee80211_send_nullfunc(struct ieee80211_local *local,
ieee80211_tx_skb(sdata, skb, 0);
}
+/* spectrum management related things */
+static void ieee80211_chswitch_work(struct work_struct *work)
+{
+ struct ieee80211_sub_if_data *sdata =
+ container_of(work, struct ieee80211_sub_if_data, u.mgd.chswitch_work);
+ struct ieee80211_bss *bss;
+ struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+
+ if (!netif_running(sdata->dev))
+ return;
+
+ bss = ieee80211_rx_bss_get(sdata->local, ifmgd->bssid,
+ sdata->local->hw.conf.channel->center_freq,
+ ifmgd->ssid, ifmgd->ssid_len);
+ if (!bss)
+ goto exit;
+
+ sdata->local->oper_channel = sdata->local->csa_channel;
+ /* XXX: shouldn't really modify cfg80211-owned data! */
+ if (!ieee80211_hw_config(sdata->local, IEEE80211_CONF_CHANGE_CHANNEL))
+ bss->cbss.channel = sdata->local->oper_channel;
+
+ ieee80211_rx_bss_put(sdata->local, bss);
+exit:
+ ifmgd->flags &= ~IEEE80211_STA_CSA_RECEIVED;
+ ieee80211_wake_queues_by_reason(&sdata->local->hw,
+ IEEE80211_QUEUE_STOP_REASON_CSA);
+}
+
+static void ieee80211_chswitch_timer(unsigned long data)
+{
+ struct ieee80211_sub_if_data *sdata =
+ (struct ieee80211_sub_if_data *) data;
+ struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+
+ queue_work(sdata->local->hw.workqueue, &ifmgd->chswitch_work);
+}
+
+void ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_channel_sw_ie *sw_elem,
+ struct ieee80211_bss *bss)
+{
+ struct ieee80211_channel *new_ch;
+ struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+ int new_freq = ieee80211_channel_to_frequency(sw_elem->new_ch_num);
+
+ if (ifmgd->state != IEEE80211_STA_MLME_ASSOCIATED)
+ return;
+
+ if (sdata->local->sw_scanning || sdata->local->hw_scanning)
+ return;
+
+ /* Disregard subsequent beacons if we are already running a timer
+ processing a CSA */
+
+ if (ifmgd->flags & IEEE80211_STA_CSA_RECEIVED)
+ return;
+
+ new_ch = ieee80211_get_channel(sdata->local->hw.wiphy, new_freq);
+ if (!new_ch || new_ch->flags & IEEE80211_CHAN_DISABLED)
+ return;
+
+ sdata->local->csa_channel = new_ch;
+
+ if (sw_elem->count <= 1) {
+ queue_work(sdata->local->hw.workqueue, &ifmgd->chswitch_work);
+ } else {
+ ieee80211_stop_queues_by_reason(&sdata->local->hw,
+ IEEE80211_QUEUE_STOP_REASON_CSA);
+ ifmgd->flags |= IEEE80211_STA_CSA_RECEIVED;
+ mod_timer(&ifmgd->chswitch_timer,
+ jiffies +
+ msecs_to_jiffies(sw_elem->count *
+ bss->cbss.beacon_interval));
+ }
+}
+
+static void ieee80211_handle_pwr_constr(struct ieee80211_sub_if_data *sdata,
+ u16 capab_info, u8 *pwr_constr_elem,
+ u8 pwr_constr_elem_len)
+{
+ struct ieee80211_conf *conf = &sdata->local->hw.conf;
+
+ if (!(capab_info & WLAN_CAPABILITY_SPECTRUM_MGMT))
+ return;
+
+ /* Power constraint IE length should be 1 octet */
+ if (pwr_constr_elem_len != 1)
+ return;
+
+ if ((*pwr_constr_elem <= conf->channel->max_power) &&
+ (*pwr_constr_elem != sdata->local->power_constr_level)) {
+ sdata->local->power_constr_level = *pwr_constr_elem;
+ ieee80211_hw_config(sdata->local, 0);
+ }
+}
+
/* powersave */
static void ieee80211_enable_ps(struct ieee80211_local *local,
struct ieee80211_sub_if_data *sdata)
@@ -1736,7 +1833,7 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
(memcmp(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN) == 0)) {
struct ieee80211_channel_sw_ie *sw_elem =
(struct ieee80211_channel_sw_ie *)elems->ch_switch_elem;
- ieee80211_process_chanswitch(sdata, sw_elem, bss);
+ ieee80211_sta_process_chanswitch(sdata, sw_elem, bss);
}
ieee80211_rx_bss_put(local, bss);
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index f962bd1b16e2..f3a041cc5dcf 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -1846,6 +1846,9 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx)
sizeof(mgmt->u.action.u.chan_switch)))
return RX_DROP_MONITOR;
+ if (sdata->vif.type != NL80211_IFTYPE_STATION)
+ return RX_DROP_MONITOR;
+
if (memcmp(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN))
return RX_DROP_MONITOR;
@@ -1856,7 +1859,7 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx)
if (!bss)
return RX_DROP_MONITOR;
- ieee80211_process_chanswitch(sdata,
+ ieee80211_sta_process_chanswitch(sdata,
&mgmt->u.action.u.chan_switch.sw_elem, bss);
ieee80211_rx_bss_put(local, bss);
break;
diff --git a/net/mac80211/spectmgmt.c b/net/mac80211/spectmgmt.c
index 48bf78e7fa7a..68953033403d 100644
--- a/net/mac80211/spectmgmt.c
+++ b/net/mac80211/spectmgmt.c
@@ -84,104 +84,3 @@ void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
mgmt->sa, mgmt->bssid,
mgmt->u.action.u.measurement.dialog_token);
}
-
-void ieee80211_chswitch_work(struct work_struct *work)
-{
- struct ieee80211_sub_if_data *sdata =
- container_of(work, struct ieee80211_sub_if_data, u.mgd.chswitch_work);
- struct ieee80211_bss *bss;
- struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
-
- if (!netif_running(sdata->dev))
- return;
-
- bss = ieee80211_rx_bss_get(sdata->local, ifmgd->bssid,
- sdata->local->hw.conf.channel->center_freq,
- ifmgd->ssid, ifmgd->ssid_len);
- if (!bss)
- goto exit;
-
- sdata->local->oper_channel = sdata->local->csa_channel;
- /* XXX: shouldn't really modify cfg80211-owned data! */
- if (!ieee80211_hw_config(sdata->local, IEEE80211_CONF_CHANGE_CHANNEL))
- bss->cbss.channel = sdata->local->oper_channel;
-
- ieee80211_rx_bss_put(sdata->local, bss);
-exit:
- ifmgd->flags &= ~IEEE80211_STA_CSA_RECEIVED;
- ieee80211_wake_queues_by_reason(&sdata->local->hw,
- IEEE80211_QUEUE_STOP_REASON_CSA);
-}
-
-void ieee80211_chswitch_timer(unsigned long data)
-{
- struct ieee80211_sub_if_data *sdata =
- (struct ieee80211_sub_if_data *) data;
- struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
-
- queue_work(sdata->local->hw.workqueue, &ifmgd->chswitch_work);
-}
-
-void ieee80211_process_chanswitch(struct ieee80211_sub_if_data *sdata,
- struct ieee80211_channel_sw_ie *sw_elem,
- struct ieee80211_bss *bss)
-{
- struct ieee80211_channel *new_ch;
- struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
- int new_freq = ieee80211_channel_to_frequency(sw_elem->new_ch_num);
-
- /* FIXME: Handle ADHOC later */
- if (sdata->vif.type != NL80211_IFTYPE_STATION)
- return;
-
- if (ifmgd->state != IEEE80211_STA_MLME_ASSOCIATED)
- return;
-
- if (sdata->local->sw_scanning || sdata->local->hw_scanning)
- return;
-
- /* Disregard subsequent beacons if we are already running a timer
- processing a CSA */
-
- if (ifmgd->flags & IEEE80211_STA_CSA_RECEIVED)
- return;
-
- new_ch = ieee80211_get_channel(sdata->local->hw.wiphy, new_freq);
- if (!new_ch || new_ch->flags & IEEE80211_CHAN_DISABLED)
- return;
-
- sdata->local->csa_channel = new_ch;
-
- if (sw_elem->count <= 1) {
- queue_work(sdata->local->hw.workqueue, &ifmgd->chswitch_work);
- } else {
- ieee80211_stop_queues_by_reason(&sdata->local->hw,
- IEEE80211_QUEUE_STOP_REASON_CSA);
- ifmgd->flags |= IEEE80211_STA_CSA_RECEIVED;
- mod_timer(&ifmgd->chswitch_timer,
- jiffies +
- msecs_to_jiffies(sw_elem->count *
- bss->cbss.beacon_interval));
- }
-}
-
-void ieee80211_handle_pwr_constr(struct ieee80211_sub_if_data *sdata,
- u16 capab_info, u8 *pwr_constr_elem,
- u8 pwr_constr_elem_len)
-{
- struct ieee80211_conf *conf = &sdata->local->hw.conf;
-
- if (!(capab_info & WLAN_CAPABILITY_SPECTRUM_MGMT))
- return;
-
- /* Power constraint IE length should be 1 octet */
- if (pwr_constr_elem_len != 1)
- return;
-
- if ((*pwr_constr_elem <= conf->channel->max_power) &&
- (*pwr_constr_elem != sdata->local->power_constr_level)) {
- sdata->local->power_constr_level = *pwr_constr_elem;
- ieee80211_hw_config(sdata->local, 0);
- }
-}
-
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.