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/*
* Copyright 2007 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.
*
* mac80211 - events
*/
#include <net/iw_handler.h>
#include "ieee80211_i.h"
/*
* Indicate a failed Michael MIC to userspace. If the caller knows the TSC of
* the frame that generated the MIC failure (i.e., if it was provided by the
* driver or is still in the frame), it should provide that information.
*/
void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int keyidx,
struct ieee80211_hdr *hdr, const u8 *tsc)
{
union iwreq_data wrqu;
char *buf = kmalloc(128, GFP_ATOMIC);
if (buf) {
/* TODO: needed parameters: count, key type, TSC */
sprintf(buf, "MLME-MICHAELMICFAILURE.indication("
"keyid=%d %scast addr=%pM)",
keyidx, hdr->addr1[0] & 0x01 ? "broad" : "uni",
hdr->addr2);
memset(&wrqu, 0, sizeof(wrqu));
wrqu.data.length = strlen(buf);
wireless_send_event(sdata->dev, IWEVCUSTOM, &wrqu, buf);
kfree(buf);
}
cfg80211_michael_mic_failure(sdata->dev, hdr->addr2,
(hdr->addr1[0] & 0x01) ?
NL80211_KEYTYPE_GROUP :
NL80211_KEYTYPE_PAIRWISE,
keyidx, tsc);
}
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