mac80211: reject extra IEs for probe request when hw_scan

We cannot currently hand off extra IEs to hw_scan, so reject
configuring extra IEs for probe request frames when hw_scan
is set.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Cc: Jouni Malinen <j@w1.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index a1a1344..42d692f 100644 (file)
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -1176,11 +1176,16 @@ static int ieee80211_set_channel(struct wiphy *wiphy,
        return ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
 }
 
-static int set_mgmt_extra_ie_sta(struct ieee80211_if_sta *ifsta, u8 subtype,
-                                u8 *ies, size_t ies_len)
+static int set_mgmt_extra_ie_sta(struct ieee80211_sub_if_data *sdata,
+                                u8 subtype, u8 *ies, size_t ies_len)
 {
+       struct ieee80211_local *local = sdata->local;
+       struct ieee80211_if_sta *ifsta = &sdata->u.sta;
+
        switch (subtype) {
        case IEEE80211_STYPE_PROBE_REQ >> 4:
+               if (local->ops->hw_scan)
+                       break;
                kfree(ifsta->ie_probereq);
                ifsta->ie_probereq = ies;
                ifsta->ie_probereq_len = ies_len;
@@ -1244,7 +1249,7 @@ static int ieee80211_set_mgmt_extra_ie(struct wiphy *wiphy,
        switch (sdata->vif.type) {
        case NL80211_IFTYPE_STATION:
        case NL80211_IFTYPE_ADHOC:
-               ret = set_mgmt_extra_ie_sta(&sdata->u.sta, params->subtype,
+               ret = set_mgmt_extra_ie_sta(sdata, params->subtype,
                                            ies, ies_len);
                break;
        default: