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mac80211: fix RX sequence number check

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According to 802.11-2007, we are doing the wrong thing in the
sequence number checks when receiving frames. This fixes it.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Johannes Berg 2008-07-10 10:11:02 +02:00 committed by John W. Linville
parent 2560b6e2e4
commit 1411f9b531
1 changed files with 12 additions and 7 deletions
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19
net/mac80211/rx.c
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@ -334,13 +334,18 @@ static void ieee80211_parse_qos(struct ieee80211_rx_data *rx)
else else
rx->flags &= ~IEEE80211_RX_AMSDU; rx->flags &= ~IEEE80211_RX_AMSDU;
} else { } else {
if (unlikely(ieee80211_is_mgmt(hdr->frame_control))) { /*
/* Separate TID for management frames */ * IEEE 802.11-2007, 7.1.3.4.1 ("Sequence Number field"):
tid = NUM_RX_DATA_QUEUES - 1; *
} else { * Sequence numbers for management frames, QoS data
/* no qos control present */ * frames with a broadcast/multicast address in the
tid = 0; /* 802.1d - Best Effort */ * Address 1 field, and all non-QoS data frames sent
} * by QoS STAs are assigned using an additional single
* modulo-4096 counter, [...]
*
* We also use that counter for non-QoS STAs.
*/
tid = NUM_RX_DATA_QUEUES - 1;
} }
rx->queue = tid; rx->queue = tid;