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[MAC80211]: refactor event sending

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Create a new file event.c that will contain code to send mac/mlme
events to userspace. For now put the Michael MIC failure condition
into it and remove sending of that condition via the management
interface, hostapd interestingly doesn't do anything when it gets
such a packet besides printing a message, it reacts only on the
private iwevent.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Michael Wu <flamingice@sourmilk.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Johannes Berg
2007-08-28 17:01:53 -04:00
committed by David S. Miller
parent 808718c147
commit eb063c1702
5 changed files with 57 additions and 63 deletions
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34
net/mac80211/wpa.c
View File

@ -11,10 +11,8 @@
#include <linux/slab.h>
#include <linux/skbuff.h>
#include <linux/compiler.h>
#include <net/iw_handler.h>
#include <net/mac80211.h>
#include "ieee80211_common.h"
#include "ieee80211_i.h"
#include "michael.h"
#include "tkip.h"
@ -181,33 +179,9 @@ ieee80211_rx_h_michael_mic_verify(struct ieee80211_txrx_data *rx)
printk(KERN_DEBUG "%s: invalid Michael MIC in data frame from "
MAC_FMT "\n", rx->dev->name, MAC_ARG(sa));
do {
struct ieee80211_hdr *hdr;
union iwreq_data wrqu;
char *buf = kmalloc(128, GFP_ATOMIC);
if (!buf)
break;
/* TODO: needed parameters: count, key type, TSC */
hdr = (struct ieee80211_hdr *) skb->data;
sprintf(buf, "MLME-MICHAELMICFAILURE.indication("
"keyid=%d %scast addr=" MAC_FMT ")",
rx->key->keyidx,
hdr->addr1[0] & 0x01 ? "broad" : "uni",
MAC_ARG(hdr->addr2));
memset(&wrqu, 0, sizeof(wrqu));
wrqu.data.length = strlen(buf);
wireless_send_event(rx->dev, IWEVCUSTOM, &wrqu, buf);
kfree(buf);
} while (0);
if (!rx->local->apdev)
return TXRX_DROP;
ieee80211_rx_mgmt(rx->local, rx->skb, rx->u.rx.status,
ieee80211_msg_michael_mic_failure);
return TXRX_QUEUED;
mac80211_ev_michael_mic_failure(rx->dev, rx->key->keyidx,
(void *) skb->data);
return TXRX_DROP;
}
remove_mic: