cfg80211: Advertise maximum associated STAs in AP mode
This allows drivers to advertise the maximum number of associated
stations they support in AP mode (including P2P GO). User space
applications can use this for cleaner way of handling the limit (e.g.,
hostapd rejecting IEEE 802.11 authentication without manual
configuration of the limit) or to figure out what type of use cases can
be executed with multiple devices before trying and failing.
Signed-off-by: Jouni Malinen <j@w1.fi>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 6e7d580..b2ac141 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -1588,6 +1588,12 @@
(nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
goto nla_put_failure;
+
+ if (dev->wiphy.max_ap_assoc_sta &&
+ nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
+ dev->wiphy.max_ap_assoc_sta))
+ goto nla_put_failure;
+
state->split_start++;
break;
case 11: