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From e..@apache.org
Subject svn commit: r1354144 - in /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs: ./ src/main/java/org/apache/hadoop/hdfs/server/namenode/ src/test/java/org/apache/hadoop/hdfs/server/namenode/
Date Tue, 26 Jun 2012 18:14:11 GMT
Author: eli
Date: Tue Jun 26 18:14:09 2012
New Revision: 1354144

URL: http://svn.apache.org/viewvc?rev=1354144&view=rev
Log:
HDFS-3535. Audit logging should log denied accesses. Contributed by Andy Isaacson

Added:
    hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestAuditLogs.java
Modified:
    hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
    hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
    hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestFsck.java

Modified: hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
URL: http://svn.apache.org/viewvc/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt?rev=1354144&r1=1354143&r2=1354144&view=diff
==============================================================================
--- hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt (original)
+++ hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt Tue Jun 26 18:14:09 2012
@@ -244,6 +244,8 @@ Branch-2 ( Unreleased changes )
 
     HDFS-3516. Check content-type in WebHdfsFileSystem.  (szetszwo)
 
+    HDFS-3535. Audit logging should log denied accesses. (Andy Isaacson via eli)
+
   OPTIMIZATIONS
 
     HDFS-2982. Startup performance suffers when there are many edit log

Modified: hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
URL: http://svn.apache.org/viewvc/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java?rev=1354144&r1=1354143&r2=1354144&view=diff
==============================================================================
--- hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
(original)
+++ hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
Tue Jun 26 18:14:09 2012
@@ -240,8 +240,15 @@ public class FSNamesystem implements Nam
   private static final void logAuditEvent(UserGroupInformation ugi,
       InetAddress addr, String cmd, String src, String dst,
       HdfsFileStatus stat) {
+    logAuditEvent(true, ugi, addr, cmd, src, dst, stat);
+  }
+
+  private static final void logAuditEvent(boolean succeeded,
+      UserGroupInformation ugi, InetAddress addr, String cmd, String src,
+      String dst, HdfsFileStatus stat) {
     final StringBuilder sb = auditBuffer.get();
     sb.setLength(0);
+    sb.append("allowed=").append(succeeded).append("\t");
     sb.append("ugi=").append(ugi).append("\t");
     sb.append("ip=").append(addr).append("\t");
     sb.append("cmd=").append(cmd).append("\t");
@@ -1018,6 +1025,21 @@ public class FSNamesystem implements Nam
   void setPermission(String src, FsPermission permission)
       throws AccessControlException, FileNotFoundException, SafeModeException,
       UnresolvedLinkException, IOException {
+    try {
+      setPermissionInt(src, permission);
+    } catch (AccessControlException e) {
+      if (auditLog.isInfoEnabled() && isExternalInvocation()) {
+        logAuditEvent(false, UserGroupInformation.getCurrentUser(),
+                      Server.getRemoteIp(),
+                      "setPermission", src, null, null);
+      }
+      throw e;
+    }
+  }
+
+  private void setPermissionInt(String src, FsPermission permission)
+      throws AccessControlException, FileNotFoundException, SafeModeException,
+      UnresolvedLinkException, IOException {
     HdfsFileStatus resultingStat = null;
     writeLock();
     try {
@@ -1049,6 +1071,21 @@ public class FSNamesystem implements Nam
   void setOwner(String src, String username, String group)
       throws AccessControlException, FileNotFoundException, SafeModeException,
       UnresolvedLinkException, IOException {
+    try {
+      setOwnerInt(src, username, group);
+    } catch (AccessControlException e) {
+      if (auditLog.isInfoEnabled() && isExternalInvocation()) {
+        logAuditEvent(false, UserGroupInformation.getCurrentUser(),
+                      Server.getRemoteIp(),
+                      "setOwner", src, null, null);
+      }
+      throw e;
+    } 
+  }
+
+  private void setOwnerInt(String src, String username, String group)
+      throws AccessControlException, FileNotFoundException, SafeModeException,
+      UnresolvedLinkException, IOException {
     HdfsFileStatus resultingStat = null;
     writeLock();
     try {
@@ -1106,6 +1143,22 @@ public class FSNamesystem implements Nam
   LocatedBlocks getBlockLocations(String src, long offset, long length,
       boolean doAccessTime, boolean needBlockToken, boolean checkSafeMode)
       throws FileNotFoundException, UnresolvedLinkException, IOException {
+    try {
+      return getBlockLocationsInt(src, offset, length, doAccessTime,
+                                  needBlockToken, checkSafeMode);
+    } catch (AccessControlException e) {
+      if (auditLog.isInfoEnabled() && isExternalInvocation()) {
+        logAuditEvent(false, UserGroupInformation.getCurrentUser(),
+                      Server.getRemoteIp(),
+                      "open", src, null, null);
+      }
+      throw e;
+    }
+  }
+
+  private LocatedBlocks getBlockLocationsInt(String src, long offset, long length,
+      boolean doAccessTime, boolean needBlockToken, boolean checkSafeMode)
+      throws FileNotFoundException, UnresolvedLinkException, IOException {
     if (isPermissionEnabled) {
       checkPathAccess(src, FsAction.READ);
     }
@@ -1202,6 +1255,20 @@ public class FSNamesystem implements Nam
    */
   void concat(String target, String [] srcs) 
       throws IOException, UnresolvedLinkException {
+    try {
+      concatInt(target, srcs);
+    } catch (AccessControlException e) {
+      if (auditLog.isInfoEnabled() && isExternalInvocation()) {
+        logAuditEvent(false, UserGroupInformation.getLoginUser(),
+                      Server.getRemoteIp(),
+                      "concat", Arrays.toString(srcs), target, null);
+      }
+      throw e;
+    }
+  }
+
+  private void concatInt(String target, String [] srcs) 
+      throws IOException, UnresolvedLinkException {
     if(FSNamesystem.LOG.isDebugEnabled()) {
       FSNamesystem.LOG.debug("concat " + Arrays.toString(srcs) +
           " to " + target);
@@ -1354,6 +1421,20 @@ public class FSNamesystem implements Nam
    * written to the edits log but is not flushed.
    */
   void setTimes(String src, long mtime, long atime) 
+      throws IOException, UnresolvedLinkException {
+    try {
+      setTimesInt(src, mtime, atime);
+    } catch (AccessControlException e) {
+      if (auditLog.isInfoEnabled() && isExternalInvocation()) {
+        logAuditEvent(false, UserGroupInformation.getCurrentUser(),
+                      Server.getRemoteIp(),
+                      "setTimes", src, null, null);
+      }
+      throw e;
+    }
+  }
+
+  private void setTimesInt(String src, long mtime, long atime) 
     throws IOException, UnresolvedLinkException {
     if (!isAccessTimeSupported() && atime != -1) {
       throw new IOException("Access time for hdfs is not configured. " +
@@ -1390,6 +1471,21 @@ public class FSNamesystem implements Nam
   void createSymlink(String target, String link,
       PermissionStatus dirPerms, boolean createParent) 
       throws IOException, UnresolvedLinkException {
+    try {
+      createSymlinkInt(target, link, dirPerms, createParent);
+    } catch (AccessControlException e) {
+      if (auditLog.isInfoEnabled() && isExternalInvocation()) {
+        logAuditEvent(false, UserGroupInformation.getCurrentUser(),
+                      Server.getRemoteIp(),
+                      "createSymlink", link, target, null);
+      }
+      throw e;
+    }
+  }
+
+  private void createSymlinkInt(String target, String link,
+      PermissionStatus dirPerms, boolean createParent) 
+      throws IOException, UnresolvedLinkException {
     HdfsFileStatus resultingStat = null;
     writeLock();
     try {
@@ -1457,8 +1553,22 @@ public class FSNamesystem implements Nam
    * @return true if successful; 
    *         false if file does not exist or is a directory
    */
-  boolean setReplication(final String src, final short replication
-      ) throws IOException {
+  boolean setReplication(final String src, final short replication)
+      throws IOException {
+    try {
+      return setReplicationInt(src, replication);
+    } catch (AccessControlException e) {
+      if (auditLog.isInfoEnabled() && isExternalInvocation()) {
+        logAuditEvent(false, UserGroupInformation.getCurrentUser(),
+                      Server.getRemoteIp(),
+                      "setReplication", src, null, null);
+      }
+      throw e;
+    }
+  }
+
+  private boolean setReplicationInt(final String src, final short replication)
+      throws IOException {
     blockManager.verifyReplication(src, replication, null);
 
     final boolean isFile;
@@ -1491,7 +1601,7 @@ public class FSNamesystem implements Nam
     }
     return isFile;
   }
-    
+
   long getPreferredBlockSize(String filename) 
       throws IOException, UnresolvedLinkException {
     readLock();
@@ -1537,6 +1647,24 @@ public class FSNamesystem implements Nam
       short replication, long blockSize) throws AccessControlException,
       SafeModeException, FileAlreadyExistsException, UnresolvedLinkException,
       FileNotFoundException, ParentNotDirectoryException, IOException {
+    try {
+      startFileInt(src, permissions, holder, clientMachine, flag, createParent,
+                   replication, blockSize);
+    } catch (AccessControlException e) {
+      if (auditLog.isInfoEnabled() && isExternalInvocation()) {
+        logAuditEvent(false, UserGroupInformation.getCurrentUser(),
+                      Server.getRemoteIp(),
+                      "create", src, null, null);
+      }
+      throw e;
+    }
+  }
+
+  private void startFileInt(String src, PermissionStatus permissions, String holder,
+      String clientMachine, EnumSet<CreateFlag> flag, boolean createParent,
+      short replication, long blockSize) throws AccessControlException,
+      SafeModeException, FileAlreadyExistsException, UnresolvedLinkException,
+      FileNotFoundException, ParentNotDirectoryException, IOException {
     writeLock();
     try {
       checkOperation(OperationCategory.WRITE);
@@ -1840,6 +1968,22 @@ public class FSNamesystem implements Nam
       throws AccessControlException, SafeModeException,
       FileAlreadyExistsException, FileNotFoundException,
       ParentNotDirectoryException, IOException {
+    try {
+      return appendFileInt(src, holder, clientMachine);
+    } catch (AccessControlException e) {
+      if (auditLog.isInfoEnabled() && isExternalInvocation()) {
+        logAuditEvent(false, UserGroupInformation.getCurrentUser(),
+                      Server.getRemoteIp(),
+                      "append", src, null, null);
+      }
+      throw e;
+    }
+  }
+
+  private LocatedBlock appendFileInt(String src, String holder, String clientMachine)
+      throws AccessControlException, SafeModeException,
+      FileAlreadyExistsException, FileNotFoundException,
+      ParentNotDirectoryException, IOException {
     if (!supportAppends) {
       throw new UnsupportedOperationException(
           "Append is not enabled on this NameNode. Use the " +
@@ -2326,6 +2470,20 @@ public class FSNamesystem implements Nam
    */
   @Deprecated
   boolean renameTo(String src, String dst) 
+      throws IOException, UnresolvedLinkException {
+    try {
+      return renameToInt(src, dst);
+    } catch (AccessControlException e) {
+      if (auditLog.isInfoEnabled() && isExternalInvocation()) {
+        logAuditEvent(false, UserGroupInformation.getCurrentUser(),
+                      Server.getRemoteIp(),
+                      "rename", src, dst, null);
+      }
+      throw e;
+    }
+  }
+
+  private boolean renameToInt(String src, String dst) 
     throws IOException, UnresolvedLinkException {
     boolean status = false;
     HdfsFileStatus resultingStat = null;
@@ -2437,20 +2595,35 @@ public class FSNamesystem implements Nam
    * @see ClientProtocol#delete(String, boolean) for detailed descriptoin and 
    * description of exceptions
    */
-    boolean delete(String src, boolean recursive)
-        throws AccessControlException, SafeModeException,
-               UnresolvedLinkException, IOException {
-      if (NameNode.stateChangeLog.isDebugEnabled()) {
-        NameNode.stateChangeLog.debug("DIR* NameSystem.delete: " + src);
-      }
-      boolean status = deleteInternal(src, recursive, true);
-      if (status && auditLog.isInfoEnabled() && isExternalInvocation()) {
-        logAuditEvent(UserGroupInformation.getCurrentUser(),
+  boolean delete(String src, boolean recursive)
+      throws AccessControlException, SafeModeException,
+      UnresolvedLinkException, IOException {
+    try {
+      return deleteInt(src, recursive);
+    } catch (AccessControlException e) {
+      if (auditLog.isInfoEnabled() && isExternalInvocation()) {
+        logAuditEvent(false, UserGroupInformation.getCurrentUser(),
                       Server.getRemoteIp(),
                       "delete", src, null, null);
       }
-      return status;
+      throw e;
+    }
+  }
+      
+  private boolean deleteInt(String src, boolean recursive)
+      throws AccessControlException, SafeModeException,
+      UnresolvedLinkException, IOException {
+    if (NameNode.stateChangeLog.isDebugEnabled()) {
+      NameNode.stateChangeLog.debug("DIR* NameSystem.delete: " + src);
     }
+    boolean status = deleteInternal(src, recursive, true);
+    if (status && auditLog.isInfoEnabled() && isExternalInvocation()) {
+      logAuditEvent(UserGroupInformation.getCurrentUser(),
+                    Server.getRemoteIp(),
+                    "delete", src, null, null);
+    }
+    return status;
+  }
     
   /**
    * Remove a file/directory from the namespace.
@@ -2606,6 +2779,20 @@ public class FSNamesystem implements Nam
    */
   boolean mkdirs(String src, PermissionStatus permissions,
       boolean createParent) throws IOException, UnresolvedLinkException {
+    try {
+      return mkdirsInt(src, permissions, createParent);
+    } catch (AccessControlException e) {
+      if (auditLog.isInfoEnabled() && isExternalInvocation()) {
+        logAuditEvent(false, UserGroupInformation.getCurrentUser(),
+                      Server.getRemoteIp(),
+                      "mkdirs", src, null, null);
+      }
+      throw e;
+    }
+  }
+
+  private boolean mkdirsInt(String src, PermissionStatus permissions,
+      boolean createParent) throws IOException, UnresolvedLinkException {
     boolean status = false;
     if(NameNode.stateChangeLog.isDebugEnabled()) {
       NameNode.stateChangeLog.debug("DIR* NameSystem.mkdirs: " + src);
@@ -3057,6 +3244,21 @@ public class FSNamesystem implements Nam
    */
   DirectoryListing getListing(String src, byte[] startAfter,
       boolean needLocation) 
+      throws AccessControlException, UnresolvedLinkException, IOException {
+    try {
+      return getListingInt(src, startAfter, needLocation);
+    } catch (AccessControlException e) {
+      if (auditLog.isInfoEnabled() && isExternalInvocation()) {
+        logAuditEvent(false, UserGroupInformation.getCurrentUser(),
+                      Server.getRemoteIp(),
+                      "listStatus", src, null, null);
+      }
+      throw e;
+    }
+  }
+
+  private DirectoryListing getListingInt(String src, byte[] startAfter,
+      boolean needLocation) 
     throws AccessControlException, UnresolvedLinkException, IOException {
     DirectoryListing dl;
     readLock();

Added: hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestAuditLogs.java
URL: http://svn.apache.org/viewvc/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestAuditLogs.java?rev=1354144&view=auto
==============================================================================
--- hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestAuditLogs.java
(added)
+++ hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestAuditLogs.java
Tue Jun 26 18:14:09 2012
@@ -0,0 +1,162 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.hadoop.hdfs.server.namenode;
+
+import static org.junit.Assert.*;
+import org.junit.Before;
+import org.junit.After;
+
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileReader;
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.regex.Pattern;
+
+import org.apache.commons.logging.impl.Log4JLogger;
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.FileSystem;
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.fs.permission.FsPermission;
+import org.apache.hadoop.hdfs.DFSConfigKeys;
+import org.apache.hadoop.hdfs.DFSTestUtil;
+import org.apache.hadoop.hdfs.HdfsConfiguration;
+import org.apache.hadoop.hdfs.MiniDFSCluster;
+import org.apache.hadoop.security.AccessControlException;
+import org.apache.hadoop.security.UserGroupInformation;
+import org.apache.log4j.Level;
+import org.apache.log4j.Logger;
+import org.apache.log4j.PatternLayout;
+import org.apache.log4j.RollingFileAppender;
+import org.junit.Test;
+
+/**
+ * A JUnit test that audit logs are generated
+ */
+public class TestAuditLogs {
+  static final String auditLogFile = System.getProperty("test.build.dir",
+      "build/test") + "/audit.log";
+  
+  // Pattern for: 
+  // allowed=(true|false) ugi=name ip=/address cmd={cmd} src={path} dst=null perm=null
+  static final Pattern auditPattern = Pattern.compile(
+      "allowed=.*?\\s" +
+      "ugi=.*?\\s" + 
+      "ip=/\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\s" + 
+      "cmd=.*?\\ssrc=.*?\\sdst=null\\s" + 
+      "perm=.*?");
+  static final Pattern successPattern = Pattern.compile(
+      ".*allowed=true.*");
+  static final String username = "bob";
+  static final String[] groups = { "group1" };
+  static final String fileName = "/srcdat";
+
+  DFSTestUtil util;
+  MiniDFSCluster cluster;
+  FileSystem fs;
+  String fnames[];
+  Configuration conf;
+  UserGroupInformation userGroupInfo;
+
+  @Before
+  public void setupCluster() throws Exception {
+    conf = new HdfsConfiguration();
+    final long precision = 1L;
+    conf.setLong(DFSConfigKeys.DFS_NAMENODE_ACCESSTIME_PRECISION_KEY, precision);
+    conf.setLong(DFSConfigKeys.DFS_BLOCKREPORT_INTERVAL_MSEC_KEY, 10000L);
+    util = new DFSTestUtil("TestAuditAllowed", 20, 3, 8*1024);
+    cluster = new MiniDFSCluster.Builder(conf).numDataNodes(4).build();
+    fs = cluster.getFileSystem();
+    util.createFiles(fs, fileName);
+
+    fnames = util.getFileNames(fileName);
+    util.waitReplication(fs, fileName, (short)3);
+    userGroupInfo = UserGroupInformation.createUserForTesting(username, groups);
+ }
+
+  @After
+  public void teardownCluster() throws Exception {
+    util.cleanup(fs, "/srcdat");
+    fs.close();
+    cluster.shutdown();
+  }
+
+  /** test that allowed operation puts proper entry in audit log */
+  @Test
+  public void testAuditAllowed() throws Exception {
+    final Path file = new Path(fnames[0]);
+    FileSystem userfs = DFSTestUtil.getFileSystemAs(userGroupInfo, conf);
+
+    setupAuditLogs();
+    InputStream istream = userfs.open(file);
+    int val = istream.read();
+    istream.close();
+    verifyAuditLogs(true);
+    assertTrue("failed to read from file", val > 0);
+  }
+
+  /** test that denied operation puts proper entry in audit log */
+  @Test
+  public void testAuditDenied() throws Exception {
+    final Path file = new Path(fnames[0]);
+    FileSystem userfs = DFSTestUtil.getFileSystemAs(userGroupInfo, conf);
+
+    fs.setPermission(file, new FsPermission((short)0600));
+    fs.setOwner(file, "root", null);
+
+    setupAuditLogs();
+
+    try {
+      userfs.open(file);
+      fail("open must not succeed");
+    } catch(AccessControlException e) {
+      System.out.println("got access denied, as expected.");
+    }
+    verifyAuditLogs(false);
+  }
+
+  /** Sets up log4j logger for auditlogs */
+  private void setupAuditLogs() throws IOException {
+    File file = new File(auditLogFile);
+    if (file.exists()) {
+      file.delete();
+    }
+    Logger logger = ((Log4JLogger) FSNamesystem.auditLog).getLogger();
+    logger.setLevel(Level.INFO);
+    PatternLayout layout = new PatternLayout("%m%n");
+    RollingFileAppender appender = new RollingFileAppender(layout, auditLogFile);
+    logger.addAppender(appender);
+  }
+
+  private void verifyAuditLogs(boolean expectSuccess) throws IOException {
+    // Turn off the logs
+    Logger logger = ((Log4JLogger) FSNamesystem.auditLog).getLogger();
+    logger.setLevel(Level.OFF);
+    
+    // Ensure audit log has only one entry
+    BufferedReader reader = new BufferedReader(new FileReader(auditLogFile));
+    String line = reader.readLine();
+    assertNotNull(line);
+    assertTrue("Expected audit event not found in audit log",
+        auditPattern.matcher(line).matches());
+    assertTrue("Expected success=" + expectSuccess,
+               successPattern.matcher(line).matches() == expectSuccess);
+    assertNull("Unexpected event in audit log", reader.readLine());
+  }
+}

Modified: hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestFsck.java
URL: http://svn.apache.org/viewvc/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestFsck.java?rev=1354144&r1=1354143&r2=1354144&view=diff
==============================================================================
--- hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestFsck.java
(original)
+++ hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestFsck.java
Tue Jun 26 18:14:09 2012
@@ -76,8 +76,9 @@ public class TestFsck {
       "build/test") + "/audit.log";
   
   // Pattern for: 
-  // ugi=name ip=/address cmd=FSCK src=/ dst=null perm=null
+  // allowed=true ugi=name ip=/address cmd=FSCK src=/ dst=null perm=null
   static final Pattern fsckPattern = Pattern.compile(
+      "allowed=.*?\\s" +
       "ugi=.*?\\s" + 
       "ip=/\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\s" + 
       "cmd=fsck\\ssrc=\\/\\sdst=null\\s" + 



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