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- From 95697f9907bfe3eab0ef20265a766b22e27dde64 Mon Sep 17 00:00:00 2001
- From: Johannes Berg <[email protected]>
- Date: Fri, 4 Oct 2019 15:37:05 +0300
- Subject: [PATCH] mac80211: accept deauth frames in IBSS mode
- 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 <[email protected]>
- Signed-off-by: Luca Coelho <[email protected]>
- Link: https://lore.kernel.org/r/[email protected]
- Signed-off-by: Johannes Berg <[email protected]>
- ---
- net/mac80211/rx.c | 11 ++++++++++-
- 1 file changed, 10 insertions(+), 1 deletion(-)
- --- a/net/mac80211/rx.c
- +++ b/net/mac80211/rx.c
- @@ -3467,9 +3467,18 @@ ieee80211_rx_h_mgmt(struct ieee80211_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))
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