wifi: do not send random MAC request until supplicant appears

am: c65e95eb77

Change-Id: Iff4d7eaf605f63e50d93f15d5bcbf66ae872532b

1 files changed, 12 insertions, 0 deletions

diff --git a/wifi/wifi.cc b/wifi/wifi.cc
index a8577f50..9bcda61a 100644
--- a/wifi/wifi.cc
+++ b/wifi/wifi.cc
@@ -762,6 +762,11 @@ bool WiFi::GetRandomMACEnabled(Error* /*error*/) {
 }
 
 bool WiFi::SetRandomMACEnabled(const bool& enabled, Error* error) {
+  if (!supplicant_present_ || !supplicant_interface_proxy_.get()) {
+    SLOG(this, 2) << "Ignoring random MAC while supplicant is not present.";
+    return false;
+  }
+
   if (!random_mac_supported_) {
     Error::PopulateAndLog(FROM_HERE, error, Error::kNotSupported,
             "This WiFi device does not support MAC address randomization");
@@ -2329,6 +2334,13 @@ void WiFi::ConnectToSupplicant() {
                << "May be running an older version of wpa_supplicant.";
   }
 
+  if (random_mac_enabled_ &&
+      !supplicant_interface_proxy_->EnableMACAddressRandomization(
+           kRandomMACMask)) {
+    LOG(ERROR) << "Failed to enable MAC address randomization. "
+               << "May be running an older version of wpa_supplicant.";
+  }
+
   Scan(kFullScan, nullptr, __func__);
   StartScanTimer();
 }