openwrt/package/madwifi/patches/405-retransmit_check.patch
Felix Fietkau 10b74a2455 madwifi: add some extra sanity checking
SVN-Revision: 12006
2008-07-30 07:05:12 +00:00

23 lines
678 B
Diff

--- a/net80211/ieee80211.h
+++ b/net80211/ieee80211.h
@@ -174,8 +174,6 @@
#define IEEE80211_SEQ_SEQ_MASK 0xfff0
#define IEEE80211_SEQ_SEQ_SHIFT 4
-#define IEEE80211_SEQ_LEQ(a,b) ((int)((a)-(b)) <= 0)
-
#define IEEE80211_NWID_LEN 32
#define IEEE80211_QOS_TXOP 0x00ff
--- a/net80211/ieee80211_input.c
+++ b/net80211/ieee80211_input.c
@@ -417,7 +417,7 @@
tid = 0;
rxseq = le16toh(*(__le16 *)wh->i_seq);
if ((wh->i_fc[1] & IEEE80211_FC1_RETRY) &&
- IEEE80211_SEQ_LEQ(rxseq, ni->ni_rxseqs[tid])) {
+ (rxseq == ni->ni_rxseqs[tid])) {
/* duplicate, discard */
IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_INPUT,
bssid, "duplicate",