madwifi: add some extra sanity checking
[openwrt.git] / package / madwifi / patches / 405-retransmit_check.patch
1 --- a/net80211/ieee80211.h
2 +++ b/net80211/ieee80211.h
3 @@ -174,8 +174,6 @@
4  #define        IEEE80211_SEQ_SEQ_MASK                  0xfff0
5  #define        IEEE80211_SEQ_SEQ_SHIFT                 4
6  
7 -#define        IEEE80211_SEQ_LEQ(a,b)  ((int)((a)-(b)) <= 0)
8 -
9  #define        IEEE80211_NWID_LEN                      32
10  
11  #define        IEEE80211_QOS_TXOP                      0x00ff
12 --- a/net80211/ieee80211_input.c
13 +++ b/net80211/ieee80211_input.c
14 @@ -417,7 +417,7 @@
15                                 tid = 0;
16                         rxseq = le16toh(*(__le16 *)wh->i_seq);
17                         if ((wh->i_fc[1] & IEEE80211_FC1_RETRY) &&
18 -                           IEEE80211_SEQ_LEQ(rxseq, ni->ni_rxseqs[tid])) {
19 +                           (rxseq == ni->ni_rxseqs[tid])) {
20                                 /* duplicate, discard */
21                                 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_INPUT,
22                                         bssid, "duplicate",