From 0f73d2fde01e7f7c1251adaac5c672c9e6e1872a Mon Sep 17 00:00:00 2001
From: Gabriel Biren <gbiren@google.com>
Date: Mon, 28 Feb 2022 19:23:43 +0000
Subject: [PATCH] Add getMaxNumScanSsids() API to WifiNl80211Manager.

Bug: 140003257
Test: atest WificondScannerTest

Change-Id: Ibecc0b322b51ea96e4f378331756554eabdef1d4
---
 core/api/system-current.txt                   |  1 +
 .../net/wifi/nl80211/WifiNl80211Manager.java  | 19 +++++++++++++++++++
 2 files changed, 20 insertions(+)

diff --git a/core/api/system-current.txt b/core/api/system-current.txt
index e18a3088c820a..bdcb1e3d18f9e 100644
--- a/core/api/system-current.txt
+++ b/core/api/system-current.txt
@@ -8987,6 +8987,7 @@ package android.net.wifi.nl80211 {
     method public void enableVerboseLogging(boolean);
     method @NonNull public int[] getChannelsMhzForBand(int);
     method @Nullable public android.net.wifi.nl80211.DeviceWiphyCapabilities getDeviceWiphyCapabilities(@NonNull String);
+    method public int getMaxNumScanSsids(@NonNull String);
     method @NonNull public java.util.List<android.net.wifi.nl80211.NativeScanResult> getScanResults(@NonNull String, int);
     method @Nullable public android.net.wifi.nl80211.WifiNl80211Manager.TxPacketCounters getTxPacketCounters(@NonNull String);
     method public void notifyCountryCodeChanged(@Nullable String);
diff --git a/wifi/java/src/android/net/wifi/nl80211/WifiNl80211Manager.java b/wifi/java/src/android/net/wifi/nl80211/WifiNl80211Manager.java
index 960447504d150..8630ec4b062da 100644
--- a/wifi/java/src/android/net/wifi/nl80211/WifiNl80211Manager.java
+++ b/wifi/java/src/android/net/wifi/nl80211/WifiNl80211Manager.java
@@ -962,6 +962,25 @@ public class WifiNl80211Manager {
         return results;
     }
 
+    /**
+     * Get the max number of SSIDs that the driver supports per scan.
+     *
+     * @param ifaceName Name of the interface.
+     */
+    public int getMaxNumScanSsids(@NonNull String ifaceName) {
+        IWifiScannerImpl scannerImpl = getScannerImpl(ifaceName);
+        if (scannerImpl == null) {
+            Log.e(TAG, "No valid wificond scanner interface handler for iface=" + ifaceName);
+            return 0;
+        }
+        try {
+            return scannerImpl.getMaxNumScanSsids();
+        } catch (RemoteException e1) {
+            Log.e(TAG, "Failed to getMaxNumScanSsids");
+        }
+        return 0;
+    }
+
     /**
      * Return scan type for the parcelable {@link SingleScanSettings}
      */