diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2019-10-04 15:37:05 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-01-27 14:51:16 +0100 |
| commit | 3fa1de685ce731147ea8bd9a543bc4def2b13089 (patch) | |
| tree | ddc508507aac1fb96811b59473cf4bdf156fafd7 | |
| parent | c56289ec58f90100e33cb9f014f8e6560d4b54c7 (diff) | |
mac80211: accept deauth frames in IBSS mode
[ Upstream commit 95697f9907bfe3eab0ef20265a766b22e27dde64 ]
We can process deauth frames and all, but we drop them very
early in the RX path today - this could never have worked.
Fixes: 2cc59e784b54 ("mac80211: reply to AUTH with DEAUTH if sta allocation fails in IBSS")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/20191004123706.15768-2-luca@coelho.fi
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | net/mac80211/rx.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index b12f23c996f4..02d0b22d0114 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -3391,9 +3391,18 @@ ieee80211_rx_h_mgmt(struct ieee80211_rx_data *rx) case cpu_to_le16(IEEE80211_STYPE_PROBE_RESP): /* process for all: mesh, mlme, ibss */ break; + case cpu_to_le16(IEEE80211_STYPE_DEAUTH): + if (is_multicast_ether_addr(mgmt->da) && + !is_broadcast_ether_addr(mgmt->da)) + return RX_DROP_MONITOR; + + /* process only for station/IBSS */ + if (sdata->vif.type != NL80211_IFTYPE_STATION && + sdata->vif.type != NL80211_IFTYPE_ADHOC) + return RX_DROP_MONITOR; + break; case cpu_to_le16(IEEE80211_STYPE_ASSOC_RESP): case cpu_to_le16(IEEE80211_STYPE_REASSOC_RESP): - case cpu_to_le16(IEEE80211_STYPE_DEAUTH): case cpu_to_le16(IEEE80211_STYPE_DISASSOC): if (is_multicast_ether_addr(mgmt->da) && !is_broadcast_ether_addr(mgmt->da)) |