]>
Commit | Line | Data |
---|---|---|
39192c0b JB |
1 | /* |
2 | * spectrum management | |
3 | * | |
4 | * Copyright 2003, Jouni Malinen <jkmaline@cc.hut.fi> | |
5 | * Copyright 2002-2005, Instant802 Networks, Inc. | |
6 | * Copyright 2005-2006, Devicescape Software, Inc. | |
7 | * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz> | |
8 | * Copyright 2007, Michael Wu <flamingice@sourmilk.net> | |
9 | * Copyright 2007-2008, Intel Corporation | |
10 | * Copyright 2008, Johannes Berg <johannes@sipsolutions.net> | |
11 | * | |
12 | * This program is free software; you can redistribute it and/or modify | |
13 | * it under the terms of the GNU General Public License version 2 as | |
14 | * published by the Free Software Foundation. | |
15 | */ | |
16 | ||
17 | #include <linux/ieee80211.h> | |
d3236553 | 18 | #include <net/cfg80211.h> |
39192c0b JB |
19 | #include <net/mac80211.h> |
20 | #include "ieee80211_i.h" | |
21 | #include "sta_info.h" | |
22 | #include "wme.h" | |
23 | ||
24 | static void ieee80211_send_refuse_measurement_request(struct ieee80211_sub_if_data *sdata, | |
25 | struct ieee80211_msrment_ie *request_ie, | |
26 | const u8 *da, const u8 *bssid, | |
27 | u8 dialog_token) | |
28 | { | |
29 | struct ieee80211_local *local = sdata->local; | |
30 | struct sk_buff *skb; | |
31 | struct ieee80211_mgmt *msr_report; | |
32 | ||
33 | skb = dev_alloc_skb(sizeof(*msr_report) + local->hw.extra_tx_headroom + | |
34 | sizeof(struct ieee80211_msrment_ie)); | |
d15b8459 | 35 | if (!skb) |
39192c0b | 36 | return; |
39192c0b JB |
37 | |
38 | skb_reserve(skb, local->hw.extra_tx_headroom); | |
39 | msr_report = (struct ieee80211_mgmt *)skb_put(skb, 24); | |
40 | memset(msr_report, 0, 24); | |
41 | memcpy(msr_report->da, da, ETH_ALEN); | |
47846c9b | 42 | memcpy(msr_report->sa, sdata->vif.addr, ETH_ALEN); |
39192c0b JB |
43 | memcpy(msr_report->bssid, bssid, ETH_ALEN); |
44 | msr_report->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | | |
45 | IEEE80211_STYPE_ACTION); | |
46 | ||
47 | skb_put(skb, 1 + sizeof(msr_report->u.action.u.measurement)); | |
48 | msr_report->u.action.category = WLAN_CATEGORY_SPECTRUM_MGMT; | |
49 | msr_report->u.action.u.measurement.action_code = | |
50 | WLAN_ACTION_SPCT_MSR_RPRT; | |
51 | msr_report->u.action.u.measurement.dialog_token = dialog_token; | |
52 | ||
53 | msr_report->u.action.u.measurement.element_id = WLAN_EID_MEASURE_REPORT; | |
54 | msr_report->u.action.u.measurement.length = | |
55 | sizeof(struct ieee80211_msrment_ie); | |
56 | ||
57 | memset(&msr_report->u.action.u.measurement.msr_elem, 0, | |
58 | sizeof(struct ieee80211_msrment_ie)); | |
59 | msr_report->u.action.u.measurement.msr_elem.token = request_ie->token; | |
60 | msr_report->u.action.u.measurement.msr_elem.mode |= | |
61 | IEEE80211_SPCT_MSR_RPRT_MODE_REFUSED; | |
62 | msr_report->u.action.u.measurement.msr_elem.type = request_ie->type; | |
63 | ||
62ae67be | 64 | ieee80211_tx_skb(sdata, skb); |
39192c0b JB |
65 | } |
66 | ||
67 | void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata, | |
68 | struct ieee80211_mgmt *mgmt, | |
69 | size_t len) | |
70 | { | |
71 | /* | |
72 | * Ignoring measurement request is spec violation. | |
73 | * Mandatory measurements must be reported optional | |
74 | * measurements might be refused or reported incapable | |
75 | * For now just refuse | |
76 | * TODO: Answer basic measurement as unmeasured | |
77 | */ | |
78 | ieee80211_send_refuse_measurement_request(sdata, | |
79 | &mgmt->u.action.u.measurement.msr_elem, | |
80 | mgmt->sa, mgmt->bssid, | |
81 | mgmt->u.action.u.measurement.dialog_token); | |
82 | } |