mac80211: move spectrum management code out
Like the HT code, this doesn't depend on the STA-mode implementation
and can be handled entirely independently. There's only stub code
for now, but when it gets filled having it in its own file will be
beneficial.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/mac80211/spectmgmt.c b/net/mac80211/spectmgmt.c
new file mode 100644
index 0000000..b7129f4
--- /dev/null
+++ b/net/mac80211/spectmgmt.c
@@ -0,0 +1,86 @@
+/*
+ * spectrum management
+ *
+ * Copyright 2003, Jouni Malinen <jkmaline@cc.hut.fi>
+ * Copyright 2002-2005, Instant802 Networks, Inc.
+ * Copyright 2005-2006, Devicescape Software, Inc.
+ * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
+ * Copyright 2007, Michael Wu <flamingice@sourmilk.net>
+ * Copyright 2007-2008, Intel Corporation
+ * Copyright 2008, Johannes Berg <johannes@sipsolutions.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/ieee80211.h>
+#include <net/wireless.h>
+#include <net/mac80211.h>
+#include "ieee80211_i.h"
+#include "sta_info.h"
+#include "wme.h"
+
+static void ieee80211_send_refuse_measurement_request(struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_msrment_ie *request_ie,
+ const u8 *da, const u8 *bssid,
+ u8 dialog_token)
+{
+ struct ieee80211_local *local = sdata->local;
+ struct sk_buff *skb;
+ struct ieee80211_mgmt *msr_report;
+
+ skb = dev_alloc_skb(sizeof(*msr_report) + local->hw.extra_tx_headroom +
+ sizeof(struct ieee80211_msrment_ie));
+
+ if (!skb) {
+ printk(KERN_ERR "%s: failed to allocate buffer for "
+ "measurement report frame\n", sdata->dev->name);
+ return;
+ }
+
+ skb_reserve(skb, local->hw.extra_tx_headroom);
+ msr_report = (struct ieee80211_mgmt *)skb_put(skb, 24);
+ memset(msr_report, 0, 24);
+ memcpy(msr_report->da, da, ETH_ALEN);
+ memcpy(msr_report->sa, sdata->dev->dev_addr, ETH_ALEN);
+ memcpy(msr_report->bssid, bssid, ETH_ALEN);
+ msr_report->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
+ IEEE80211_STYPE_ACTION);
+
+ skb_put(skb, 1 + sizeof(msr_report->u.action.u.measurement));
+ msr_report->u.action.category = WLAN_CATEGORY_SPECTRUM_MGMT;
+ msr_report->u.action.u.measurement.action_code =
+ WLAN_ACTION_SPCT_MSR_RPRT;
+ msr_report->u.action.u.measurement.dialog_token = dialog_token;
+
+ msr_report->u.action.u.measurement.element_id = WLAN_EID_MEASURE_REPORT;
+ msr_report->u.action.u.measurement.length =
+ sizeof(struct ieee80211_msrment_ie);
+
+ memset(&msr_report->u.action.u.measurement.msr_elem, 0,
+ sizeof(struct ieee80211_msrment_ie));
+ msr_report->u.action.u.measurement.msr_elem.token = request_ie->token;
+ msr_report->u.action.u.measurement.msr_elem.mode |=
+ IEEE80211_SPCT_MSR_RPRT_MODE_REFUSED;
+ msr_report->u.action.u.measurement.msr_elem.type = request_ie->type;
+
+ ieee80211_sta_tx(sdata, skb, 0);
+}
+
+void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_mgmt *mgmt,
+ size_t len)
+{
+ /*
+ * Ignoring measurement request is spec violation.
+ * Mandatory measurements must be reported optional
+ * measurements might be refused or reported incapable
+ * For now just refuse
+ * TODO: Answer basic measurement as unmeasured
+ */
+ ieee80211_send_refuse_measurement_request(sdata,
+ &mgmt->u.action.u.measurement.msr_elem,
+ mgmt->sa, mgmt->bssid,
+ mgmt->u.action.u.measurement.dialog_token);
+}