mac80211: accept deauth frames in IBSS mode (95697f99) · Commits · 戴 / test

We can process deauth frames and all, but we drop them very early in the RX path today - this could never have worked. Fixes: ("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>

net/mac80211/rx.c

+10 −1

Original line number	Diff line number	Diff line
		@@ -3467,9 +3467,18 @@ 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))

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