Remove superfluous security check

find_omaha.sh

 # Copyright (c) 2009 The Chromium OS Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # Parent file must include memento_updater_logging.sh
 # This file cannot be run by itself, it must be included.
 
-OVERRIDE_IS_SECURE="YES"
-FACTORY_OVERRIDE_IS_SECURE="YES"
-
-# Return the value for a given key in the override lsb-release file if the
-# file is secure.  If no value is found, checks in the standard lsb-release
-# file.
+# Return the value for a given key in the override lsb-release file.
+# If no value is found, checks in the standard lsb-release file.
 findLSBValue()
 {
-  if [ "$FACTORY_OVERRIDE_IS_SECURE" = "YES" ]
-  then
-    # Check factory lsb file.
-    value=$(grep ^$1 $FACTORY_LSB_FILE | cut -d = -f 2-)
-  fi
+  # Check factory lsb file.
+  value=$(grep ^$1 $FACTORY_LSB_FILE | cut -d = -f 2-)
 
   if [ -z "$value" ]
   then
     value=$(grep ^$1 /etc/lsb-release | cut -d = -f 2-)
   fi
 
   # Don't remove this echo, this is not for test purpose
   echo $value
 }
 
-# Returns 0 if the file or folder is owned by root and not writable
-# by group/other.  Returns 1 otherwise.
-checkRootPermission()
-{
-  if [ -z "$1" ]
-  then
-    log Path is missing, unable to check permissions
-    return 1
-  fi
-  # Verifying root owner for the passed in value ($1)
-  OWNER=$(stat -c '%U:%G' "$1")
-
-  if [ "$OWNER" != "root:root" ]
-  then
-    return 1
-  else
-    # File has root:root permission so now we will check write permission
-    # on the file.
-    PERMISSION=$(stat -c '%A' "$1")
-    # PERMISSION would be something like -rw-r--r--, so we are parsing
-    # w bits for owner, group and others.
-    GROUP_WRITE=$(echo "$PERMISSION" | cut -b 6)
-    OTHER_WRITE=$(echo "$PERMISSION" | cut -b 9)
-
-    # Except owner, nobody should have write permission. (owner has to be root)
-    if [ "$GROUP_WRITE" != '-' -o "$OTHER_WRITE" != '-' ]
-    then
-      return 1
-    fi
-  fi
-  return 0
-}
-
-FACTORY_STATEFUL_VAR=/mnt/stateful_partition/dev_image
-FACTORY_STATEFUL_ETC=/mnt/stateful_partition/dev_image/etc
 FACTORY_LSB_FILE=/mnt/stateful_partition/dev_image/etc/lsb-factory
-
-FACTORY_LIST_TO_CHECK="
-    $FACTORY_STATEFUL_VAR
-    $FACTORY_STATEFUL_ETC
-    $FACTORY_LSB_FILE
-"
-
-for FILE_NAME in $FACTORY_LIST_TO_CHECK
-do
-  if ! checkRootPermission "$FILE_NAME"
-  then
-    log non-root can write to $FILE_NAME, thus ignoring $FACTORY_LSB_FILE
-    # If we find there is security hole, we set this flag
-    FACTORY_OVERRIDE_IS_SECURE=NO
-  fi
-done
-