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#
# Author:: Doug MacEachern <dougm@vmware.com>
# Author:: Paul Morton (<pmorton@biaprotect.com>)
# Cookbook Name:: windows
# Library:: windows_privileged
#
# Copyright:: 2010, VMware, Inc.
# Copyright:: 2011, Business Intelligence Associates, Inc
#
# 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.
#
if RUBY_PLATFORM =~ /mswin|mingw32|windows/
require 'windows/error'
require 'windows/registry'
require 'windows/process'
require 'windows/security'
end
#helpers for Windows API calls that require privilege adjustments
class Chef
class WindowsPrivileged
if RUBY_PLATFORM =~ /mswin|mingw32|windows/
include Windows::Error
include Windows::Registry
include Windows::Process
include Windows::Security
end
#File -> Load Hive... in regedit.exe
def reg_load_key(name, file)
run(SE_BACKUP_NAME, SE_RESTORE_NAME) do
rc = RegLoadKey(HKEY_USERS, "#{name}", file)
if rc == ERROR_SUCCESS
return true
elsif rc == ERROR_SHARING_VIOLATION
return false
else
raise get_last_error(rc)
end
end
end
#File -> Unload Hive... in regedit.exe
def reg_unload_key(name)
run(SE_BACKUP_NAME, SE_RESTORE_NAME) do
rc = RegUnLoadKey(HKEY_USERS, "#{name}")
if rc != ERROR_SUCCESS
raise get_last_error(rc)
end
end
end
def run(*privileges)
token = [0].pack('L')
unless OpenProcessToken(GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES|TOKEN_QUERY, token)
raise get_last_error
end
token = token.unpack('L')[0]
privileges.each do |name|
unless adjust_privilege(token, name, SE_PRIVILEGE_ENABLED)
raise get_last_error
end
end
begin
yield
ensure #disable privs
privileges.each do |name|
adjust_privilege(token, name, 0)
end
end
end
def adjust_privilege(token, priv, attr=0)
luid = [0,0].pack('Ll')
if LookupPrivilegeValue(nil, priv, luid)
new_state = [1, luid.unpack('Ll'), attr].flatten.pack('LLlL')
AdjustTokenPrivileges(token, 0, new_state, new_state.size, 0, 0)
end
end
end
end
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