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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>
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| Original file line number | Diff line number | Diff line change |
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@@ -17,6 +17,7 @@ mac80211-y := \ | |
| aes_ccm.o \ | ||
| cfg.o \ | ||
| rx.o \ | ||
| spectmgmt.o \ | ||
| tx.o \ | ||
| key.o \ | ||
| util.o \ | ||
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| Original file line number | Diff line number | Diff line change |
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| @@ -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. | ||
| */ | ||
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| #include <linux/ieee80211.h> | ||
| #include <net/wireless.h> | ||
| #include <net/mac80211.h> | ||
| #include "ieee80211_i.h" | ||
| #include "sta_info.h" | ||
| #include "wme.h" | ||
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| 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; | ||
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| skb = dev_alloc_skb(sizeof(*msr_report) + local->hw.extra_tx_headroom + | ||
| sizeof(struct ieee80211_msrment_ie)); | ||
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|
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| if (!skb) { | ||
| printk(KERN_ERR "%s: failed to allocate buffer for " | ||
| "measurement report frame\n", sdata->dev->name); | ||
| return; | ||
| } | ||
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| 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); | ||
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| 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; | ||
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| msr_report->u.action.u.measurement.element_id = WLAN_EID_MEASURE_REPORT; | ||
| msr_report->u.action.u.measurement.length = | ||
| sizeof(struct ieee80211_msrment_ie); | ||
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| 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; | ||
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| ieee80211_sta_tx(sdata, skb, 0); | ||
| } | ||
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| 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); | ||
| } |