43 lines
1.3 KiB
C
43 lines
1.3 KiB
C
/*
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* Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* mac80211 - events
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*/
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#include <net/iw_handler.h>
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#include "ieee80211_i.h"
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/*
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* Indicate a failed Michael MIC to userspace. If the caller knows the TSC of
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* the frame that generated the MIC failure (i.e., if it was provided by the
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* driver or is still in the frame), it should provide that information.
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*/
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void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int keyidx,
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struct ieee80211_hdr *hdr, const u8 *tsc)
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{
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union iwreq_data wrqu;
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char *buf = kmalloc(128, GFP_ATOMIC);
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if (buf) {
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/* TODO: needed parameters: count, key type, TSC */
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sprintf(buf, "MLME-MICHAELMICFAILURE.indication("
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"keyid=%d %scast addr=%pM)",
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keyidx, hdr->addr1[0] & 0x01 ? "broad" : "uni",
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hdr->addr2);
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memset(&wrqu, 0, sizeof(wrqu));
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wrqu.data.length = strlen(buf);
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wireless_send_event(sdata->dev, IWEVCUSTOM, &wrqu, buf);
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kfree(buf);
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}
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cfg80211_michael_mic_failure(sdata->dev, hdr->addr2,
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(hdr->addr1[0] & 0x01) ?
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NL80211_KEYTYPE_GROUP :
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NL80211_KEYTYPE_PAIRWISE,
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keyidx, tsc);
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}
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