mac80211: pass all probe request IEs to driver
Instead of just passing the cfg80211-requested IEs, pass
the locally generated ones as well.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c
index 3bf9839..4ec1bfc 100644
--- a/net/mac80211/scan.c
+++ b/net/mac80211/scan.c
@@ -285,6 +285,12 @@
if (WARN_ON(!local->scan_req))
return;
+ if (local->hw_scanning) {
+ kfree(local->scan_req->ie);
+ local->scan_req->ie = local->orig_ies;
+ local->scan_req->ie_len = local->orig_ies_len;
+ }
+
if (local->scan_req != &local->int_scan_req)
cfg80211_scan_done(local->scan_req, aborted);
local->scan_req = NULL;
@@ -457,12 +463,28 @@
}
if (local->ops->hw_scan) {
- int rc;
+ u8 *ies;
+ int rc, ielen;
+
+ ies = kmalloc(2 + IEEE80211_MAX_SSID_LEN +
+ local->scan_ies_len + req->ie_len, GFP_KERNEL);
+ if (!ies)
+ return -ENOMEM;
+
+ ielen = ieee80211_build_preq_ies(local, ies,
+ req->ie, req->ie_len);
+ local->orig_ies = req->ie;
+ local->orig_ies_len = req->ie_len;
+ req->ie = ies;
+ req->ie_len = ielen;
local->hw_scanning = true;
rc = local->ops->hw_scan(local_to_hw(local), req);
if (rc) {
local->hw_scanning = false;
+ kfree(ies);
+ req->ie_len = local->orig_ies_len;
+ req->ie = local->orig_ies;
return rc;
}
local->scan_sdata = scan_sdata;