1 files changed, 64 insertions, 0 deletions
diff --git a/lib/chef/win32/security/token.rb b/lib/chef/win32/security/token.rb
new file mode 100644
index 0000000000..ded4fc080e
--- /dev/null
+++ b/lib/chef/win32/security/token.rb
@@ -0,0 +1,64 @@
+#
+# Author:: John Keiser (<jkeiser@opscode.com>)
+# Copyright:: Copyright 2011 Opscode, Inc.
+# License:: Apache License, Version 2.0
+#
+# Licensed 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.
+#
+
+require 'chef/win32/security'
+require 'chef/win32/api/security'
+
+require 'ffi'
+
+class Chef
+  module ReservedNames::Win32
+    class Security
+      class Token
+
+        def initialize(handle)
+          @handle = handle
+        end
+
+        attr_reader :handle
+
+        def enable_privileges(*privilege_names)
+          # Build the list of privileges we want to set
+          new_privileges = Chef::ReservedNames::Win32::API::Security::TOKEN_PRIVILEGES.new(
+            FFI::MemoryPointer.new(Chef::ReservedNames::Win32::API::Security::TOKEN_PRIVILEGES.size_with_privileges(privilege_names.length)))
+          new_privileges[:PrivilegeCount] = 0
+          privilege_names.each do |privilege_name|
+            luid = Chef::ReservedNames::Win32::API::Security::LUID.new
+            # Ignore failure (with_privileges TRIES but does not guarantee success--
+            # APIs down the line will fail if privilege escalation fails)
+            if Chef::ReservedNames::Win32::API::Security.LookupPrivilegeValueW(nil, privilege_name.to_wstring, luid)
+              new_privilege = new_privileges.privilege(new_privileges[:PrivilegeCount])
+              new_privilege[:Luid][:LowPart] = luid[:LowPart]
+              new_privilege[:Luid][:HighPart] = luid[:HighPart]
+              new_privilege[:Attributes] = Chef::ReservedNames::Win32::API::Security::SE_PRIVILEGE_ENABLED
+              new_privileges[:PrivilegeCount] = new_privileges[:PrivilegeCount] + 1
+            end
+          end
+
+          old_privileges = Chef::ReservedNames::Win32::Security.adjust_token_privileges(self, new_privileges)
+        end
+
+        def adjust_privileges(privileges_struct)
+          if privileges_struct[:PrivilegeCount] > 0
+            Chef::ReservedNames::Win32::Security::adjust_token_privileges(self, privileges_struct)
+          end
+        end
+      end
+    end
+  end
+end