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| author | Bob Copeland <me@bobcopeland.com> | 2013-08-23 09:35:38 -0400 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2013-08-23 15:43:38 +0200 |
| commit | c4c205f3cd17b567b8e20098522416eac2e73960 (patch) | |
| tree | 0e4e0158fc9c3716c49d7f31af3f9e6d24b5cebc /net/mac80211 | |
| parent | a4ef66a915b957416a89a48365aea2ec2dc551f6 (diff) | |
| download | linux-c4c205f3cd17b567b8e20098522416eac2e73960.tar.gz linux-c4c205f3cd17b567b8e20098522416eac2e73960.tar.bz2 linux-c4c205f3cd17b567b8e20098522416eac2e73960.zip | |
mac80211: assign seqnums for group QoS frames
According to 802.11-2012 9.3.2.10, paragraph 4, QoS
data frames with a group address in the Address 1 field
have sequence numbers allocated from the same counter
as non-QoS data and management frames. Without this
flag, some drivers may not assign sequence numbers, and
in rare cases frames might get dropped. Set the control
flag accordingly.
Signed-off-by: Bob Copeland <bob@cozybit.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211')
| -rw-r--r-- | net/mac80211/tx.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index 098ae854ad3c..3456c0486b48 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -781,9 +781,11 @@ ieee80211_tx_h_sequence(struct ieee80211_tx_data *tx) /* * Anything but QoS data that has a sequence number field * (is long enough) gets a sequence number from the global - * counter. + * counter. QoS data frames with a multicast destination + * also use the global counter (802.11-2012 9.3.2.10). */ - if (!ieee80211_is_data_qos(hdr->frame_control)) { + if (!ieee80211_is_data_qos(hdr->frame_control) || + is_multicast_ether_addr(hdr->addr1)) { /* driver should assign sequence number */ info->flags |= IEEE80211_TX_CTL_ASSIGN_SEQ; /* for pure STA mode without beacons, we can do it */ |