diff options
| author | Zhu Yi <yi.zhu@intel.com> | 2006-04-13 17:17:06 +0800 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2006-04-24 16:15:53 -0400 |
| commit | ea2841521a7e061b772d6cee03f5b23c58a58284 (patch) | |
| tree | 6333c04cd21360477fa37cd6a4556d92d6067da4 | |
| parent | cc9357104b19b2b0377713c33d87d78518912c3d (diff) | |
[PATCH] ieee80211: Fix TKIP MIC calculation for QoS frames
Fix TKIP MIC verification failure when receiving QoS frames from AP.
Signed-off-by: Hong Liu <hong.liu@intel.com>
Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
| -rw-r--r-- | include/net/ieee80211.h | 3 | ||||
| -rw-r--r-- | net/ieee80211/ieee80211_crypt_tkip.c | 11 |
2 files changed, 13 insertions, 1 deletions
diff --git a/include/net/ieee80211.h b/include/net/ieee80211.h index 4725ff861c5..66dc136588a 100644 --- a/include/net/ieee80211.h +++ b/include/net/ieee80211.h @@ -104,6 +104,9 @@ #define IEEE80211_SCTL_FRAG 0x000F #define IEEE80211_SCTL_SEQ 0xFFF0 +/* QOS control */ +#define IEEE80211_QCTL_TID 0x000F + /* debug macros */ #ifdef CONFIG_IEEE80211_DEBUG diff --git a/net/ieee80211/ieee80211_crypt_tkip.c b/net/ieee80211/ieee80211_crypt_tkip.c index 93def94c1b3..3fa5df2e1f0 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 */ } |