android: Add property for NAT-T keepalive interval

src/frontends/android/app/src/main/java/org/strongswan/android/data/VpnProfile.java

@@ -33,7 +33,7 @@ public class VpnProfile implements Cloneable
 
 	private String mName, mGateway, mUsername, mPassword, mCertificate, mUserCertificate;
 	private String mRemoteId, mLocalId, mExcludedSubnets, mIncludedSubnets, mSelectedApps;
-	private Integer mMTU, mPort, mSplitTunneling;
+	private Integer mMTU, mPort, mSplitTunneling, mNATKeepAlive;
 	private SelectedAppsHandling mSelectedAppsHandling = SelectedAppsHandling.SELECTED_APPS_DISABLE;
 	private VpnType mVpnType;
 	private UUID mUUID;
@@ -193,6 +193,16 @@ public class VpnProfile implements Cloneable
 		this.mPort = port;
 	}
 
+	public Integer getNATKeepAlive()
+	{
+		return mNATKeepAlive;
+	}
+
+	public void setNATKeepAlive(Integer keepalive)
+	{
+		this.mNATKeepAlive = keepalive;
+	}
+
 	public void setExcludedSubnets(String excludedSubnets)
 	{
 		this.mExcludedSubnets = excludedSubnets;

src/frontends/android/app/src/main/java/org/strongswan/android/data/VpnProfileDataSource.java

@@ -51,6 +51,7 @@ public class VpnProfileDataSource
 	public static final String KEY_INCLUDED_SUBNETS = "included_subnets";
 	public static final String KEY_SELECTED_APPS = "selected_apps";
 	public static final String KEY_SELECTED_APPS_LIST = "selected_apps_list";
+	public static final String KEY_NAT_KEEPALIVE = "nat_keepalive";
 
 	private DatabaseHelper mDbHelper;
 	private SQLiteDatabase mDatabase;
@@ -59,7 +60,7 @@ public class VpnProfileDataSource
 	private static final String DATABASE_NAME = "strongswan.db";
 	private static final String TABLE_VPNPROFILE = "vpnprofile";
 
-	private static final int DATABASE_VERSION = 12;
+	private static final int DATABASE_VERSION = 13;
 
 	public static final String DATABASE_CREATE =
 							"CREATE TABLE " + TABLE_VPNPROFILE + " (" +
@@ -80,7 +81,8 @@ public class VpnProfileDataSource
 								KEY_EXCLUDED_SUBNETS + " TEXT," +
 								KEY_INCLUDED_SUBNETS + " TEXT," +
 								KEY_SELECTED_APPS + " INTEGER," +
-								KEY_SELECTED_APPS_LIST + " TEXT" +
+								KEY_SELECTED_APPS_LIST + " TEXT," +
+								KEY_NAT_KEEPALIVE + " INTEGER" +
 							");";
 	private static final String[] ALL_COLUMNS = new String[] {
 								KEY_ID,
@@ -101,6 +103,7 @@ public class VpnProfileDataSource
 								KEY_INCLUDED_SUBNETS,
 								KEY_SELECTED_APPS,
 								KEY_SELECTED_APPS_LIST,
+								KEY_NAT_KEEPALIVE,
 							};
 
 	private static class DatabaseHelper extends SQLiteOpenHelper
@@ -180,6 +183,11 @@ public class VpnProfileDataSource
 				db.execSQL("ALTER TABLE " + TABLE_VPNPROFILE + " ADD " + KEY_SELECTED_APPS_LIST +
 						   " TEXT;");
 			}
+			if (oldVersion < 13)
+			{
+				db.execSQL("ALTER TABLE " + TABLE_VPNPROFILE + " ADD " + KEY_NAT_KEEPALIVE +
+						   " INTEGER;");
+			}
 		}
 
 		private void updateColumns(SQLiteDatabase db)
@@ -359,6 +367,7 @@ public class VpnProfileDataSource
 		profile.setIncludedSubnets(cursor.getString(cursor.getColumnIndex(KEY_INCLUDED_SUBNETS)));
 		profile.setSelectedAppsHandling(getInt(cursor, cursor.getColumnIndex(KEY_SELECTED_APPS)));
 		profile.setSelectedApps(cursor.getString(cursor.getColumnIndex(KEY_SELECTED_APPS_LIST)));
+		profile.setNATKeepAlive(getInt(cursor, cursor.getColumnIndex(KEY_NAT_KEEPALIVE)));
 		return profile;
 	}
 
@@ -382,6 +391,7 @@ public class VpnProfileDataSource
 		values.put(KEY_INCLUDED_SUBNETS, profile.getIncludedSubnets());
 		values.put(KEY_SELECTED_APPS, profile.getSelectedAppsHandling().getValue());
 		values.put(KEY_SELECTED_APPS_LIST, profile.getSelectedApps());
+		values.put(KEY_NAT_KEEPALIVE, profile.getNATKeepAlive());
 		return values;
 	}