hostapd(vts): Add a property for SAP interface

Changes to the VTS test to support OEM's who use a separate
dedicated SAP interface.

Note: This is a VTS test change only. The default implementation does
not still support a dedicated SAP interface (OEM's can obviously
customize the default implementation for their devices).

Bug: 136645414
Test: None (verified by partner OEM)
Change-Id: I42b87bf90cfa90c7c218309164ab2b77f3685f9e

1 files changed, 2 insertions, 0 deletions

diff --git a/wifi/hostapd/1.1/vts/functional/hostapd_hidl_test.cpp b/wifi/hostapd/1.1/vts/functional/hostapd_hidl_test.cpp
index 26a58b2c6..7aaad02ac 100644
--- a/wifi/hostapd/1.1/vts/functional/hostapd_hidl_test.cpp
+++ b/wifi/hostapd/1.1/vts/functional/hostapd_hidl_test.cpp
@@ -56,6 +56,8 @@ class HostapdHidlTest : public ::testing::VtsHalHidlTargetTestBase {
    protected:
     std::string getPrimaryWlanIfaceName() {
         std::array<char, PROPERTY_VALUE_MAX> buffer;
+        auto res = property_get("wifi.sap.interface", buffer.data(), nullptr);
+        if (res > 0) return buffer.data();
         property_get("wifi.interface", buffer.data(), "wlan0");
         return buffer.data();
     }