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nl80211: Add Michael MIC failure event processing for wpa_supplicant

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Jouni Malinen 2009-04-09 16:50:48 +03:00 committed by Jouni Malinen
parent ac184de0ec
commit 35583f3fa6
1 changed files with 38 additions and 0 deletions
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38
src/drivers/driver_nl80211.c
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@ -730,6 +730,41 @@ static void mlme_event(struct wpa_driver_nl80211_data *drv,
}
static void mlme_event_michael_mic_failure(struct wpa_driver_nl80211_data *drv,
struct nlattr *tb[])
{
union wpa_event_data data;
wpa_printf(MSG_DEBUG, "nl80211: MLME event Michael MIC failure");
os_memset(&data, 0, sizeof(data));
if (tb[NL80211_ATTR_MAC]) {
wpa_hexdump(MSG_DEBUG, "nl80211: Source MAC address",
nla_data(tb[NL80211_ATTR_MAC]),
nla_len(tb[NL80211_ATTR_MAC]));
}
if (tb[NL80211_ATTR_KEY_SEQ]) {
wpa_hexdump(MSG_DEBUG, "nl80211: TSC",
nla_data(tb[NL80211_ATTR_KEY_SEQ]),
nla_len(tb[NL80211_ATTR_KEY_SEQ]));
}
if (tb[NL80211_ATTR_KEY_TYPE]) {
enum nl80211_key_type key_type =
nla_get_u32(tb[NL80211_ATTR_KEY_TYPE]);
wpa_printf(MSG_DEBUG, "nl80211: Key Type %d", key_type);
if (key_type == NL80211_KEYTYPE_PAIRWISE)
data.michael_mic_failure.unicast = 1;
} else
data.michael_mic_failure.unicast = 1;
if (tb[NL80211_ATTR_KEY_IDX]) {
u8 key_id = nla_get_u8(tb[NL80211_ATTR_KEY_IDX]);
wpa_printf(MSG_DEBUG, "nl80211: Key Id %d", key_id);
}
wpa_supplicant_event(drv->ctx, EVENT_MICHAEL_MIC_FAILURE, &data);
}
static int process_event(struct nl_msg *msg, void *arg)
{
struct wpa_driver_nl80211_data *drv = arg;
@ -773,6 +808,9 @@ static int process_event(struct nl_msg *msg, void *arg)
case NL80211_CMD_DISASSOCIATE:
mlme_event(drv, gnlh->cmd, tb[NL80211_ATTR_FRAME]);
break;
case NL80211_CMD_MICHAEL_MIC_FAILURE:
mlme_event_michael_mic_failure(drv, tb);
break;
default:
wpa_printf(MSG_DEBUG, "nl80211: Ignored unknown event "
"(cmd=%d)", gnlh->cmd);