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eb063c17 JB |
1 | /* |
2 | * Copyright 2007 Johannes Berg <johannes@sipsolutions.net> | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License version 2 as | |
6 | * published by the Free Software Foundation. | |
7 | * | |
8 | * mac80211 - events | |
9 | */ | |
10 | ||
eb063c17 JB |
11 | #include <net/iw_handler.h> |
12 | #include "ieee80211_i.h" | |
13 | ||
14 | /* | |
a3b8b056 JM |
15 | * Indicate a failed Michael MIC to userspace. If the caller knows the TSC of |
16 | * the frame that generated the MIC failure (i.e., if it was provided by the | |
17 | * driver or is still in the frame), it should provide that information. | |
eb063c17 | 18 | */ |
f698d856 | 19 | void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int keyidx, |
a3b8b056 | 20 | struct ieee80211_hdr *hdr, const u8 *tsc) |
eb063c17 JB |
21 | { |
22 | union iwreq_data wrqu; | |
23 | char *buf = kmalloc(128, GFP_ATOMIC); | |
24 | ||
25 | if (buf) { | |
26 | /* TODO: needed parameters: count, key type, TSC */ | |
27 | sprintf(buf, "MLME-MICHAELMICFAILURE.indication(" | |
0c68ae26 | 28 | "keyid=%d %scast addr=%pM)", |
eb063c17 | 29 | keyidx, hdr->addr1[0] & 0x01 ? "broad" : "uni", |
0c68ae26 | 30 | hdr->addr2); |
eb063c17 JB |
31 | memset(&wrqu, 0, sizeof(wrqu)); |
32 | wrqu.data.length = strlen(buf); | |
f698d856 | 33 | wireless_send_event(sdata->dev, IWEVCUSTOM, &wrqu, buf); |
eb063c17 JB |
34 | kfree(buf); |
35 | } | |
36 | ||
a3b8b056 JM |
37 | cfg80211_michael_mic_failure(sdata->dev, hdr->addr2, |
38 | (hdr->addr1[0] & 0x01) ? | |
39 | NL80211_KEYTYPE_GROUP : | |
40 | NL80211_KEYTYPE_PAIRWISE, | |
41 | keyidx, tsc); | |
eb063c17 | 42 | } |