tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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
11#include <net/iw_handler.h>
12#include "ieee80211_i.h"
13
14/*
15 * indicate a failed Michael MIC to userspace; the passed packet
16 * (in the variable hdr) must be long enough to extract the TKIP
17 * fields like TSC
18 */
19void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int keyidx,
20 struct ieee80211_hdr *hdr)
21{
22 union iwreq_data wrqu;
23 char *buf = kmalloc(128, GFP_ATOMIC);
24 DECLARE_MAC_BUF(mac);
25
26 if (buf) {
27 /* TODO: needed parameters: count, key type, TSC */
28 sprintf(buf, "MLME-MICHAELMICFAILURE.indication("
29 "keyid=%d %scast addr=%s)",
30 keyidx, hdr->addr1[0] & 0x01 ? "broad" : "uni",
31 print_mac(mac, hdr->addr2));
32 memset(&wrqu, 0, sizeof(wrqu));
33 wrqu.data.length = strlen(buf);
34 wireless_send_event(sdata->dev, IWEVCUSTOM, &wrqu, buf);
35 kfree(buf);
36 }
37
38 /*
39 * TODO: re-add support for sending MIC failure indication
40 * with all info via nl80211
41 */
42}