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#
# Author:: Adam Edwards (<adamed@chef.io>)
# Copyright:: Copyright 2013-2016, Chef Software 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_relative "../exceptions"
require_relative "../platform/query_helpers"
require_relative "../win32/process" if Chef::Platform.windows?
require_relative "../win32/system" 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)
desired_architecture == :x86_64 &&
node_windows_architecture(node) == :x86_64 &&
is_i386_process_on_x86_64_windows?
end
def forced_32bit_override_required?(node, desired_architecture)
desired_architecture == :i386 &&
node_windows_architecture(node) == :x86_64 &&
!is_i386_process_on_x86_64_windows?
end
def wow64_directory
Chef::ReservedNames::Win32::System.get_system_wow64_directory
end
def with_os_architecture(node, architecture: nil)
node ||= begin
os_arch = ENV["PROCESSOR_ARCHITEW6432"] ||
ENV["PROCESSOR_ARCHITECTURE"]
Hash.new.tap do |n|
n[:kernel] = Hash.new
n[:kernel][:machine] = os_arch == "AMD64" ? :x86_64 : :i386
end
end
architecture ||= node_windows_architecture(node)
wow64_redirection_state = nil
if wow64_architecture_override_required?(node, architecture)
wow64_redirection_state = disable_wow64_file_redirection(node)
end
begin
yield
ensure
if wow64_redirection_state
restore_wow64_file_redirection(node, wow64_redirection_state)
end
end
end
def node_supports_windows_architecture?(node, desired_architecture)
assert_valid_windows_architecture!(desired_architecture)
( node_windows_architecture(node) == :x86_64 ) || ( desired_architecture == :i386 )
end
def valid_windows_architecture?(architecture)
( 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_process_on_x86_64_windows?
if Chef::Platform.windows?
Chef::ReservedNames::Win32::Process.is_wow64_process
else
false
end
end
def disable_wow64_file_redirection( node )
if ( node_windows_architecture(node) == :x86_64) && ::Chef::Platform.windows?
Chef::ReservedNames::Win32::System.wow64_disable_wow64_fs_redirection
end
end
def restore_wow64_file_redirection( node, original_redirection_state )
if (node_windows_architecture(node) == :x86_64) && ::Chef::Platform.windows?
Chef::ReservedNames::Win32::System.wow64_revert_wow64_fs_redirection(original_redirection_state)
end
end
end
end
end
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