Module: Puppet::Util::Windows::Process Private
- Extended by:
- FFI::Windows::Functions, String
- Includes:
- FFI::Windows::Structs
- Defined in:
- lib/puppet/util/windows/process.rb
This module is part of a private API. You should avoid using this module if possible, as it may be removed or be changed in the future.
Constant Summary collapse
- WAIT_TIMEOUT =
This constant is part of a private API. You should avoid using this constant if possible, as it may be removed or be changed in the future.
0x102
- WAIT_INTERVAL =
This constant is part of a private API. You should avoid using this constant if possible, as it may be removed or be changed in the future.
200
- CREATE_NO_WINDOW =
This constant is part of a private API. You should avoid using this constant if possible, as it may be removed or be changed in the future.
docs.microsoft.com/en-us/windows/desktop/ProcThread/process-creation-flags
0x08000000
- PROCESS_QUERY_INFORMATION =
This constant is part of a private API. You should avoid using this constant if possible, as it may be removed or be changed in the future.
docs.microsoft.com/en-us/windows/desktop/ProcThread/process-security-and-access-rights
0x0400
- MAX_PATH_LENGTH =
This constant is part of a private API. You should avoid using this constant if possible, as it may be removed or be changed in the future.
docs.microsoft.com/en-us/windows/desktop/FileIO/naming-a-file#maximum-path-length-limitation
32767
- TOKEN_ALL_ACCESS =
This constant is part of a private API. You should avoid using this constant if possible, as it may be removed or be changed in the future.
0xF01FF
- ERROR_NO_SUCH_PRIVILEGE =
This constant is part of a private API. You should avoid using this constant if possible, as it may be removed or be changed in the future.
1313
- TOKEN_QUERY =
This constant is part of a private API. You should avoid using this constant if possible, as it may be removed or be changed in the future.
0x0008
Constants included from FFI::Windows::Functions
FFI::Windows::Functions::SC_ENUM_TYPE, FFI::Windows::Functions::SC_STATUS_TYPE
Constants included from FFI::Windows::Constants
FFI::Windows::Constants::ABOVE_NORMAL_PRIORITY_CLASS, FFI::Windows::Constants::ALL_SERVICE_TYPES, FFI::Windows::Constants::BELOW_NORMAL_PRIORITY_CLASS, FFI::Windows::Constants::CREATE_BREAKAWAY_FROM_JOB, FFI::Windows::Constants::CREATE_DEFAULT_ERROR_MODE, FFI::Windows::Constants::CREATE_NEW_CONSOLE, FFI::Windows::Constants::CREATE_NEW_PROCESS_GROUP, FFI::Windows::Constants::CREATE_PRESERVE_CODE_AUTHZ_LEVEL, FFI::Windows::Constants::CREATE_PROTECTED_PROCESS, FFI::Windows::Constants::CREATE_SEPARATE_WOW_VDM, FFI::Windows::Constants::CREATE_SHARED_WOW_VDM, FFI::Windows::Constants::CREATE_SUSPENDED, FFI::Windows::Constants::CREATE_UNICODE_ENVIRONMENT, FFI::Windows::Constants::DEBUG_ONLY_THIS_PROCESS, FFI::Windows::Constants::DEBUG_PROCESS, FFI::Windows::Constants::DELETE, FFI::Windows::Constants::DETACHED_PROCESS, FFI::Windows::Constants::ERROR_ALREADY_EXISTS, FFI::Windows::Constants::ERROR_FILE_NOT_FOUND, FFI::Windows::Constants::ERROR_PATH_NOT_FOUND, FFI::Windows::Constants::ERROR_SERVICE_DOES_NOT_EXIST, FFI::Windows::Constants::FILE_ALL_ACCESS, FFI::Windows::Constants::FILE_APPEND_DATA, FFI::Windows::Constants::FILE_ATTRIBUTE_DIRECTORY, FFI::Windows::Constants::FILE_ATTRIBUTE_READONLY, FFI::Windows::Constants::FILE_ATTRIBUTE_REPARSE_POINT, FFI::Windows::Constants::FILE_DELETE_CHILD, FFI::Windows::Constants::FILE_DEVICE_FILE_SYSTEM, FFI::Windows::Constants::FILE_EXECUTE, FFI::Windows::Constants::FILE_FLAG_BACKUP_SEMANTICS, FFI::Windows::Constants::FILE_FLAG_OPEN_REPARSE_POINT, FFI::Windows::Constants::FILE_GENERIC_EXECUTE, FFI::Windows::Constants::FILE_GENERIC_READ, FFI::Windows::Constants::FILE_GENERIC_WRITE, FFI::Windows::Constants::FILE_READ_ATTRIBUTES, FFI::Windows::Constants::FILE_READ_DATA, FFI::Windows::Constants::FILE_READ_EA, FFI::Windows::Constants::FILE_SHARE_READ, FFI::Windows::Constants::FILE_SHARE_WRITE, FFI::Windows::Constants::FILE_WRITE_ATTRIBUTES, FFI::Windows::Constants::FILE_WRITE_DATA, FFI::Windows::Constants::FILE_WRITE_EA, FFI::Windows::Constants::FINAL_STATES, FFI::Windows::Constants::FSCTL_GET_REPARSE_POINT, FFI::Windows::Constants::GENERIC_ALL, FFI::Windows::Constants::GENERIC_EXECUTE, FFI::Windows::Constants::GENERIC_READ, FFI::Windows::Constants::GENERIC_WRITE, FFI::Windows::Constants::HANDLE_FLAG_INHERIT, FFI::Windows::Constants::HIGH_PRIORITY_CLASS, FFI::Windows::Constants::IDLE_PRIORITY_CLASS, FFI::Windows::Constants::INHERIT_PARENT_AFFINITY, FFI::Windows::Constants::INVALID_FILE_ATTRIBUTES, FFI::Windows::Constants::INVALID_HANDLE_VALUE, FFI::Windows::Constants::IO_REPARSE_TAG_CSV, FFI::Windows::Constants::IO_REPARSE_TAG_DEDUP, FFI::Windows::Constants::IO_REPARSE_TAG_DFS, FFI::Windows::Constants::IO_REPARSE_TAG_DFSR, FFI::Windows::Constants::IO_REPARSE_TAG_HSM, FFI::Windows::Constants::IO_REPARSE_TAG_HSM2, FFI::Windows::Constants::IO_REPARSE_TAG_MOUNT_POINT, FFI::Windows::Constants::IO_REPARSE_TAG_NFS, FFI::Windows::Constants::IO_REPARSE_TAG_SIS, FFI::Windows::Constants::IO_REPARSE_TAG_SYMLINK, FFI::Windows::Constants::IO_REPARSE_TAG_WIM, FFI::Windows::Constants::LOGON_WITH_PROFILE, FFI::Windows::Constants::MAXIMUM_REPARSE_DATA_BUFFER_SIZE, FFI::Windows::Constants::METHOD_BUFFERED, FFI::Windows::Constants::NORMAL_PRIORITY_CLASS, FFI::Windows::Constants::OPEN_EXISTING, FFI::Windows::Constants::PROCESS_ALL_ACCESS, FFI::Windows::Constants::PROCESS_SET_INFORMATION, FFI::Windows::Constants::PROCESS_TERMINATE, FFI::Windows::Constants::PROCESS_VM_READ, FFI::Windows::Constants::REALTIME_PRIORITY_CLASS, FFI::Windows::Constants::REPLACEFILE_IGNORE_ACL_ERRORS, FFI::Windows::Constants::REPLACEFILE_IGNORE_MERGE_ERRORS, FFI::Windows::Constants::REPLACEFILE_WRITE_THROUGH, FFI::Windows::Constants::SC_MANAGER_ALL_ACCESS, FFI::Windows::Constants::SC_MANAGER_CONNECT, FFI::Windows::Constants::SC_MANAGER_CREATE_SERVICE, FFI::Windows::Constants::SC_MANAGER_ENUMERATE_SERVICE, FFI::Windows::Constants::SC_MANAGER_LOCK, FFI::Windows::Constants::SC_MANAGER_MODIFY_BOOT_CONFIG, FFI::Windows::Constants::SC_MANAGER_QUERY_LOCK_STATUS, FFI::Windows::Constants::SEM_FAILCRITICALERRORS, FFI::Windows::Constants::SEM_NOGPFAULTERRORBOX, FFI::Windows::Constants::SERVICENAME_MAX, FFI::Windows::Constants::SERVICE_ACCEPT_HARDWAREPROFILECHANGE, FFI::Windows::Constants::SERVICE_ACCEPT_NETBINDCHANGE, FFI::Windows::Constants::SERVICE_ACCEPT_PARAMCHANGE, FFI::Windows::Constants::SERVICE_ACCEPT_PAUSE_CONTINUE, FFI::Windows::Constants::SERVICE_ACCEPT_POWEREVENT, FFI::Windows::Constants::SERVICE_ACCEPT_PRESHUTDOWN, FFI::Windows::Constants::SERVICE_ACCEPT_SESSIONCHANGE, FFI::Windows::Constants::SERVICE_ACCEPT_SHUTDOWN, FFI::Windows::Constants::SERVICE_ACCEPT_STOP, FFI::Windows::Constants::SERVICE_ACCEPT_TIMECHANGE, FFI::Windows::Constants::SERVICE_ACCEPT_TRIGGEREVENT, FFI::Windows::Constants::SERVICE_ACCEPT_USER_LOGOFF, FFI::Windows::Constants::SERVICE_ACTIVE, FFI::Windows::Constants::SERVICE_ALL_ACCESS, FFI::Windows::Constants::SERVICE_AUTO_START, FFI::Windows::Constants::SERVICE_BOOT_START, FFI::Windows::Constants::SERVICE_CHANGE_CONFIG, FFI::Windows::Constants::SERVICE_CONFIG_DELAYED_AUTO_START_INFO, FFI::Windows::Constants::SERVICE_CONFIG_DESCRIPTION, FFI::Windows::Constants::SERVICE_CONFIG_FAILURE_ACTIONS, FFI::Windows::Constants::SERVICE_CONFIG_FAILURE_ACTIONS_FLAG, FFI::Windows::Constants::SERVICE_CONFIG_LAUNCH_PROTECTED, FFI::Windows::Constants::SERVICE_CONFIG_PREFERRED_NODE, FFI::Windows::Constants::SERVICE_CONFIG_PRESHUTDOWN_INFO, FFI::Windows::Constants::SERVICE_CONFIG_REQUIRED_PRIVILEGES_INFO, FFI::Windows::Constants::SERVICE_CONFIG_SERVICE_SID_INFO, FFI::Windows::Constants::SERVICE_CONFIG_TRIGGER_INFO, FFI::Windows::Constants::SERVICE_CONFIG_TYPES, FFI::Windows::Constants::SERVICE_CONTINUE_PENDING, FFI::Windows::Constants::SERVICE_CONTROL_CONTINUE, FFI::Windows::Constants::SERVICE_CONTROL_DEVICEEVENT, FFI::Windows::Constants::SERVICE_CONTROL_HARDWAREPROFILECHANGE, FFI::Windows::Constants::SERVICE_CONTROL_INTERROGATE, FFI::Windows::Constants::SERVICE_CONTROL_NETBINDADD, FFI::Windows::Constants::SERVICE_CONTROL_NETBINDDISABLE, FFI::Windows::Constants::SERVICE_CONTROL_NETBINDENABLE, FFI::Windows::Constants::SERVICE_CONTROL_NETBINDREMOVE, FFI::Windows::Constants::SERVICE_CONTROL_PARAMCHANGE, FFI::Windows::Constants::SERVICE_CONTROL_PAUSE, FFI::Windows::Constants::SERVICE_CONTROL_POWEREVENT, FFI::Windows::Constants::SERVICE_CONTROL_PRESHUTDOWN, FFI::Windows::Constants::SERVICE_CONTROL_SESSIONCHANGE, FFI::Windows::Constants::SERVICE_CONTROL_SHUTDOWN, FFI::Windows::Constants::SERVICE_CONTROL_SIGNALS, FFI::Windows::Constants::SERVICE_CONTROL_STOP, FFI::Windows::Constants::SERVICE_CONTROL_TIMECHANGE, FFI::Windows::Constants::SERVICE_CONTROL_TRIGGEREVENT, FFI::Windows::Constants::SERVICE_DEMAND_START, FFI::Windows::Constants::SERVICE_DISABLED, FFI::Windows::Constants::SERVICE_ENUMERATE_DEPENDENTS, FFI::Windows::Constants::SERVICE_FILE_SYSTEM_DRIVER, FFI::Windows::Constants::SERVICE_INACTIVE, FFI::Windows::Constants::SERVICE_INTERACTIVE_PROCESS, FFI::Windows::Constants::SERVICE_INTERROGATE, FFI::Windows::Constants::SERVICE_KERNEL_DRIVER, FFI::Windows::Constants::SERVICE_NO_CHANGE, FFI::Windows::Constants::SERVICE_PAUSED, FFI::Windows::Constants::SERVICE_PAUSE_CONTINUE, FFI::Windows::Constants::SERVICE_PAUSE_PENDING, FFI::Windows::Constants::SERVICE_QUERY_CONFIG, FFI::Windows::Constants::SERVICE_QUERY_STATUS, FFI::Windows::Constants::SERVICE_RUNNING, FFI::Windows::Constants::SERVICE_START, FFI::Windows::Constants::SERVICE_START_PENDING, FFI::Windows::Constants::SERVICE_START_TYPES, FFI::Windows::Constants::SERVICE_STATES, FFI::Windows::Constants::SERVICE_STATE_ALL, FFI::Windows::Constants::SERVICE_STOP, FFI::Windows::Constants::SERVICE_STOPPED, FFI::Windows::Constants::SERVICE_STOP_PENDING, FFI::Windows::Constants::SERVICE_SYSTEM_START, FFI::Windows::Constants::SERVICE_USER_DEFINED_CONTROL, FFI::Windows::Constants::SERVICE_USER_OWN_PROCESS, FFI::Windows::Constants::SERVICE_USER_SHARE_PROCESS, FFI::Windows::Constants::SERVICE_WIN32_OWN_PROCESS, FFI::Windows::Constants::SERVICE_WIN32_SHARE_PROCESS, FFI::Windows::Constants::SHGFI_DISPLAYNAME, FFI::Windows::Constants::SHGFI_PIDL, FFI::Windows::Constants::SPECIFIC_RIGHTS_ALL, FFI::Windows::Constants::STANDARD_RIGHTS_ALL, FFI::Windows::Constants::STANDARD_RIGHTS_EXECUTE, FFI::Windows::Constants::STANDARD_RIGHTS_READ, FFI::Windows::Constants::STANDARD_RIGHTS_REQUIRED, FFI::Windows::Constants::STANDARD_RIGHTS_WRITE, FFI::Windows::Constants::STARTF_USESTDHANDLES, FFI::Windows::Constants::SYNCHRONIZE, FFI::Windows::Constants::TOKEN_INFORMATION_CLASS, FFI::Windows::Constants::UNSAFE_PENDING_STATES, FFI::Windows::Constants::WRITE_DAC, FFI::Windows::Constants::WRITE_OWNER
Constants included from FFI::Windows::Structs
FFI::Windows::Structs::MAXIMUM_REPARSE_DATA_BUFFER_SIZE
Class Method Summary collapse
-
.elevated_security? ⇒ Boolean
private
Returns whether or not the owner of the current process is running with elevated security privileges.
- .execute(command, arguments, stdin, stdout, stderr) ⇒ Object private
- .get_current_process ⇒ Object private
-
.get_environment_strings ⇒ Object
private
Returns a hash of the current environment variables encoded as UTF-8 The memory block returned from GetEnvironmentStringsW is double-null terminated and the vars are paired as below; Var1=Value10 Var2=Value20 VarX=ValueX00 Note - Some env variable names start with '=' and are excluded from the return value Note - The env_ptr MUST be freed using the FreeEnvironmentStringsW function Note - There is no technical limitation to the size of the environment block returned.
- .get_process_image_name_by_pid(pid) ⇒ Object private
- .get_system_default_ui_language ⇒ Object private
- .get_token_information(token_handle, token_information, &block) ⇒ Object private
- .lookup_privilege_value(name, system_name = '', &block) ⇒ Object private
- .open_process(desired_access, inherit_handle, process_id, &block) ⇒ Object private
- .open_process_token(handle, desired_access, &block) ⇒ Object private
- .parse_token_information_as_token_elevation(token_information_buf) ⇒ Object private
- .parse_token_information_as_token_privileges(token_information_buf) ⇒ Object private
- .process_privilege_symlink? ⇒ Boolean private
- .set_environment_variable(name, val) ⇒ Object private
-
.supports_elevated_security? ⇒ Boolean
private
Returns whether or not the OS has the ability to set elevated token information.
- .wait_process(handle) ⇒ Object private
- .windows_major_version ⇒ Object private
-
.with_process_token(access, &block) ⇒ Object
private
Execute a block with the current process token.
Methods included from String
Class Method Details
.elevated_security? ⇒ Boolean
This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.
Returns whether or not the owner of the current process is running with elevated security privileges.
Only supported on Windows Vista or later.
252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 |
# File 'lib/puppet/util/windows/process.rb', line 252 def elevated_security? # default / pre-Vista elevated = false handle = nil begin handle = get_current_process open_process_token(handle, TOKEN_QUERY) do |token_handle| get_token_information(token_handle, :TokenElevation) do |token_info| token_elevation = parse_token_information_as_token_elevation(token_info) # TokenIsElevated member of the TOKEN_ELEVATION struct elevated = token_elevation[:TokenIsElevated] != 0 end end elevated rescue Puppet::Util::Windows::Error => e raise e if e.code != ERROR_NO_SUCH_PRIVILEGE ensure FFI::WIN32.CloseHandle(handle) if handle end end |
.execute(command, arguments, stdin, stdout, stderr) ⇒ Object
This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.
18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 |
# File 'lib/puppet/util/windows/process.rb', line 18 def execute(command, arguments, stdin, stdout, stderr) create_args = { :command_line => command, :startup_info => { :stdin => stdin, :stdout => stdout, :stderr => stderr }, :close_handles => false, } if arguments[:suppress_window] create_args[:creation_flags] = CREATE_NO_WINDOW end if arguments[:cwd] create_args[:cwd] = arguments[:cwd] end Process.create(create_args) end |
.get_current_process ⇒ Object
This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.
61 62 63 64 |
# File 'lib/puppet/util/windows/process.rb', line 61 def get_current_process # this pseudo-handle does not require closing per MSDN docs GetCurrentProcess() end |
.get_environment_strings ⇒ Object
This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.
Returns a hash of the current environment variables encoded as UTF-8 The memory block returned from GetEnvironmentStringsW is double-null terminated and the vars are paired as below; Var1=Value10 Var2=Value20 VarX=ValueX00 Note - Some env variable names start with '=' and are excluded from the return value Note - The env_ptr MUST be freed using the FreeEnvironmentStringsW function Note - There is no technical limitation to the size of the environment block returned.
However a practical limit of 64K is used as no single environment variable can exceed 32KB
305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 |
# File 'lib/puppet/util/windows/process.rb', line 305 def get_environment_strings env_ptr = GetEnvironmentStringsW() # pass :invalid => :replace to the Ruby String#encode to use replacement characters pairs = env_ptr.read_arbitrary_wide_string_up_to(65534, :double_null, { :invalid => :replace }) .split(?\x00) .reject { |env_str| env_str.nil? || env_str.empty? || env_str[0] == '=' } .reject do |env_str| # reject any string containing the Unicode replacement character if env_str.include?("\uFFFD") Puppet.warning(_("Discarding environment variable %{string} which contains invalid bytes") % { string: env_str }) true end end .map { |env_pair| env_pair.split('=', 2) } Hash[ pairs ] ensure if env_ptr && ! env_ptr.null? if FreeEnvironmentStringsW(env_ptr) == FFI::WIN32_FALSE Puppet.debug "FreeEnvironmentStringsW memory leak" end end end |
.get_process_image_name_by_pid(pid) ⇒ Object
This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.
122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 |
# File 'lib/puppet/util/windows/process.rb', line 122 def get_process_image_name_by_pid(pid) image_name = "" Puppet::Util::Windows::Security.with_privilege(Puppet::Util::Windows::Security::SE_DEBUG_NAME) do open_process(PROCESS_QUERY_INFORMATION, false, pid) do |phandle| FFI::MemoryPointer.new(:dword, 1) do |exe_name_length_ptr| # UTF is 2 bytes/char: max_chars = MAX_PATH_LENGTH + 1 exe_name_length_ptr.write_dword(max_chars) FFI::MemoryPointer.new(:wchar, max_chars) do |exe_name_ptr| use_win32_path_format = 0 result = QueryFullProcessImageNameW(phandle, use_win32_path_format, exe_name_ptr, exe_name_length_ptr) if result == FFI::WIN32_FALSE raise Puppet::Util::Windows::Error.new( "QueryFullProcessImageNameW(phandle, #{use_win32_path_format}, " + "exe_name_ptr, #{max_chars}") end image_name = exe_name_ptr.read_wide_string(exe_name_length_ptr.read_dword) end end end end image_name end |
.get_system_default_ui_language ⇒ Object
This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.
349 350 351 |
# File 'lib/puppet/util/windows/process.rb', line 349 def get_system_default_ui_language GetSystemDefaultUILanguage() end |
.get_token_information(token_handle, token_information, &block) ⇒ Object
This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.
170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 |
# File 'lib/puppet/util/windows/process.rb', line 170 def get_token_information(token_handle, token_information, &block) # to determine buffer size FFI::MemoryPointer.new(:dword, 1) do |return_length_ptr| result = GetTokenInformation(token_handle, token_information, nil, 0, return_length_ptr) return_length = return_length_ptr.read_dword if return_length <= 0 raise Puppet::Util::Windows::Error.new( "GetTokenInformation(#{token_handle}, #{token_information}, nil, 0, #{return_length_ptr})") end # re-call API with properly sized buffer for all results FFI::MemoryPointer.new(return_length) do |token_information_buf| result = GetTokenInformation(token_handle, token_information, token_information_buf, return_length, return_length_ptr) if result == FFI::WIN32_FALSE raise Puppet::Util::Windows::Error.new( "GetTokenInformation(#{token_handle}, #{token_information}, #{token_information_buf}, " + "#{return_length}, #{return_length_ptr})") end yield token_information_buf end end # GetTokenInformation buffer has been cleaned up by this point, nothing to return nil end |
.lookup_privilege_value(name, system_name = '', &block) ⇒ Object
This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.
149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 |
# File 'lib/puppet/util/windows/process.rb', line 149 def lookup_privilege_value(name, system_name = '', &block) FFI::MemoryPointer.new(LUID.size) do |luid_ptr| result = LookupPrivilegeValueW( wide_string(system_name), wide_string(name.to_s), luid_ptr ) if result == FFI::WIN32_FALSE raise Puppet::Util::Windows::Error.new( "LookupPrivilegeValue(#{system_name}, #{name}, #{luid_ptr})") end yield LUID.new(luid_ptr) end # the underlying MemoryPointer for LUID is cleaned up by this point nil end |
.open_process(desired_access, inherit_handle, process_id, &block) ⇒ Object
This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.
67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 |
# File 'lib/puppet/util/windows/process.rb', line 67 def open_process(desired_access, inherit_handle, process_id, &block) phandle = nil inherit = inherit_handle ? FFI::WIN32_TRUE : FFI::WIN32_FALSE begin phandle = OpenProcess(desired_access, inherit, process_id) if phandle == FFI::Pointer::NULL_HANDLE raise Puppet::Util::Windows::Error.new( "OpenProcess(#{desired_access.to_s(8)}, #{inherit}, #{process_id})") end yield phandle ensure FFI::WIN32.CloseHandle(phandle) if phandle end # phandle has had CloseHandle called against it, so nothing to return nil end |
.open_process_token(handle, desired_access, &block) ⇒ Object
This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.
87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 |
# File 'lib/puppet/util/windows/process.rb', line 87 def open_process_token(handle, desired_access, &block) token_handle = nil begin FFI::MemoryPointer.new(:handle, 1) do |token_handle_ptr| result = OpenProcessToken(handle, desired_access, token_handle_ptr) if result == FFI::WIN32_FALSE raise Puppet::Util::Windows::Error.new( "OpenProcessToken(#{handle}, #{desired_access.to_s(8)}, #{token_handle_ptr})") end yield token_handle = token_handle_ptr.read_handle end token_handle ensure FFI::WIN32.CloseHandle(token_handle) if token_handle end # token_handle has had CloseHandle called against it, so nothing to return nil end |
.parse_token_information_as_token_elevation(token_information_buf) ⇒ Object
This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.
217 218 219 |
# File 'lib/puppet/util/windows/process.rb', line 217 def parse_token_information_as_token_elevation(token_information_buf) TOKEN_ELEVATION.new(token_information_buf) end |
.parse_token_information_as_token_privileges(token_information_buf) ⇒ Object
This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.
201 202 203 204 205 206 207 208 209 210 211 212 213 214 |
# File 'lib/puppet/util/windows/process.rb', line 201 def parse_token_information_as_token_privileges(token_information_buf) raw_privileges = TOKEN_PRIVILEGES.new(token_information_buf) privileges = { :count => raw_privileges[:PrivilegeCount], :privileges => [] } offset = token_information_buf + TOKEN_PRIVILEGES.offset_of(:Privileges) privilege_ptr = FFI::Pointer.new(LUID_AND_ATTRIBUTES, offset) # extract each instance of LUID_AND_ATTRIBUTES 0.upto(privileges[:count] - 1) do |i| privileges[:privileges] << LUID_AND_ATTRIBUTES.new(privilege_ptr[i]) end privileges end |
.process_privilege_symlink? ⇒ Boolean
This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.
224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 |
# File 'lib/puppet/util/windows/process.rb', line 224 def process_privilege_symlink? privilege_symlink = false handle = get_current_process open_process_token(handle, TOKEN_ALL_ACCESS) do |token_handle| lookup_privilege_value('SeCreateSymbolicLinkPrivilege') do |luid| get_token_information(token_handle, :TokenPrivileges) do |token_info| token_privileges = parse_token_information_as_token_privileges(token_info) privilege_symlink = token_privileges[:privileges].any? { |p| p[:Luid].values == luid.values } end end end privilege_symlink rescue Puppet::Util::Windows::Error => e if e.code == ERROR_NO_SUCH_PRIVILEGE false # pre-Vista else raise e end end |
.set_environment_variable(name, val) ⇒ Object
This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.
330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 |
# File 'lib/puppet/util/windows/process.rb', line 330 def set_environment_variable(name, val) raise Puppet::Util::Windows::Error(_('environment variable name must not be nil or empty')) if ! name || name.empty? FFI::MemoryPointer.from_string_to_wide_string(name) do |name_ptr| if (val.nil?) if SetEnvironmentVariableW(name_ptr, FFI::MemoryPointer::NULL) == FFI::WIN32_FALSE raise Puppet::Util::Windows::Error.new(_("Failed to remove environment variable: %{name}") % { name: name }) end else FFI::MemoryPointer.from_string_to_wide_string(val) do |val_ptr| if SetEnvironmentVariableW(name_ptr, val_ptr) == FFI::WIN32_FALSE raise Puppet::Util::Windows::Error.new(_("Failed to set environment variable: %{name}") % { name: name }) end end end end end |
.supports_elevated_security? ⇒ Boolean
This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.
Returns whether or not the OS has the ability to set elevated token information.
Returns true on Windows Vista or later, otherwise false
359 360 361 |
# File 'lib/puppet/util/windows/process.rb', line 359 def supports_elevated_security? windows_major_version >= 6 end |
.wait_process(handle) ⇒ Object
This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.
38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 |
# File 'lib/puppet/util/windows/process.rb', line 38 def wait_process(handle) while WaitForSingleObject(handle, WAIT_INTERVAL) == WAIT_TIMEOUT sleep(0) end exit_status = -1 FFI::MemoryPointer.new(:dword, 1) do |exit_status_ptr| if GetExitCodeProcess(handle, exit_status_ptr) == FFI::WIN32_FALSE raise Puppet::Util::Windows::Error.new(_("Failed to get child process exit code")) end exit_status = exit_status_ptr.read_dword # $CHILD_STATUS is not set when calling win32/process Process.create # and since it's read-only, we can't set it. But we can execute a # a shell that simply returns the desired exit status, which has the # desired effect. %x{#{ENV['COMSPEC']} /c exit #{exit_status}} end exit_status end |
.windows_major_version ⇒ Object
This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.
276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 |
# File 'lib/puppet/util/windows/process.rb', line 276 def windows_major_version ver = 0 FFI::MemoryPointer.new(OSVERSIONINFO.size) do |os_version_ptr| os_version = OSVERSIONINFO.new(os_version_ptr) os_version[:dwOSVersionInfoSize] = OSVERSIONINFO.size result = GetVersionExW(os_version_ptr) if result == FFI::WIN32_FALSE raise Puppet::Util::Windows::Error.new(_("GetVersionEx failed")) end ver = os_version[:dwMajorVersion] end ver end |
.with_process_token(access, &block) ⇒ Object
This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.
Execute a block with the current process token
111 112 113 114 115 116 117 118 119 |
# File 'lib/puppet/util/windows/process.rb', line 111 def with_process_token(access, &block) handle = get_current_process open_process_token(handle, access) do |token_handle| yield token_handle end # all handles have been closed, so nothing to safely return nil end |