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Diffstat (limited to 'net/ieee80211/ieee80211_crypt_tkip.c')
-rw-r--r--net/ieee80211/ieee80211_crypt_tkip.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/net/ieee80211/ieee80211_crypt_tkip.c b/net/ieee80211/ieee80211_crypt_tkip.c
index 93def94c1b32..3fa5df2e1f0b 100644
--- a/net/ieee80211/ieee80211_crypt_tkip.c
+++ b/net/ieee80211/ieee80211_crypt_tkip.c
@@ -501,8 +501,11 @@ static int michael_mic(struct ieee80211_tkip_data *tkey, u8 * key, u8 * hdr,
static void michael_mic_hdr(struct sk_buff *skb, u8 * hdr)
{
struct ieee80211_hdr_4addr *hdr11;
+ u16 stype;
hdr11 = (struct ieee80211_hdr_4addr *)skb->data;
+ stype = WLAN_FC_GET_STYPE(le16_to_cpu(hdr11->frame_ctl));
+
switch (le16_to_cpu(hdr11->frame_ctl) &
(IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS)) {
case IEEE80211_FCTL_TODS:
@@ -523,7 +526,13 @@ static void michael_mic_hdr(struct sk_buff *skb, u8 * hdr)
break;
}
- hdr[12] = 0; /* priority */
+ if (stype & IEEE80211_STYPE_QOS_DATA) {
+ const struct ieee80211_hdr_3addrqos *qoshdr =
+ (struct ieee80211_hdr_3addrqos *)skb->data;
+ hdr[12] = le16_to_cpu(qoshdr->qos_ctl) & IEEE80211_QCTL_TID;
+ } else
+ hdr[12] = 0; /* priority */
+
hdr[13] = hdr[14] = hdr[15] = 0; /* reserved */
}