# # Author:: Adam Edwards (<adamed@opscode.com>) # Copyright:: Copyright (c) 2013 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/exceptions' require 'win32/api' if Chef::Platform.windows? class Chef module Mixin module WindowsArchitectureHelper def node_windows_architecture(node) node[:kernel][:machine].to_sym end def wow64_architecture_override_required?(node, desired_architecture) is_i386_windows_process? && node_windows_architecture(node) == :x86_64 && desired_architecture == :x86_64 end def node_supports_windows_architecture?(node, desired_architecture) assert_valid_windows_architecture!(desired_architecture) return (node_windows_architecture(node) == :x86_64 || desired_architecture == :i386) ? true : false end def valid_windows_architecture?(architecture) return (architecture == :x86_64) || (architecture == :i386) end def assert_valid_windows_architecture!(architecture) if ! valid_windows_architecture?(architecture) raise Chef::Exceptions::Win32ArchitectureIncorrect, "The specified architecture was not valid. It must be one of :i386 or :x86_64" end end def is_i386_windows_process? Chef::Platform.windows? && 'X86'.casecmp(ENV['PROCESSOR_ARCHITECTURE']) == 0 end def disable_wow64_file_redirection( node ) original_redirection_state = ['0'].pack('P') if ( ( node_windows_architecture(node) == :x86_64) && ::Chef::Platform.windows?) win32_wow_64_disable_wow_64_fs_redirection = ::Win32::API.new('Wow64DisableWow64FsRedirection', 'P', 'L', 'kernel32') succeeded = win32_wow_64_disable_wow_64_fs_redirection.call(original_redirection_state) if succeeded == 0 raise Win32APIError "Failed to disable Wow64 file redirection" end end original_redirection_state end def restore_wow64_file_redirection( node, original_redirection_state ) if ( (node_windows_architecture(node) == :x86_64) && ::Chef::Platform.windows?) win32_wow_64_revert_wow_64_fs_redirection = ::Win32::API.new('Wow64RevertWow64FsRedirection', 'P', 'L', 'kernel32') succeeded = win32_wow_64_revert_wow_64_fs_redirection.call(original_redirection_state) if succeeded == 0 raise Win32APIError "Failed to revert Wow64 file redirection" end end end end end end