vendor/golang.org/x/sys/windows/ztypes_windows.go

   1 // Copyright 2011 The Go Authors.  All rights reserved.
   2 // Use of this source code is governed by a BSD-style
   3 // license that can be found in the LICENSE file.
   4
   5 package windows
   6
   7 import "syscall"
   8
   9 const (
  10         // Windows errors.
  11         ERROR_FILE_NOT_FOUND         syscall.Errno = 2
  12         ERROR_PATH_NOT_FOUND         syscall.Errno = 3
  13         ERROR_ACCESS_DENIED          syscall.Errno = 5
  14         ERROR_NO_MORE_FILES          syscall.Errno = 18
  15         ERROR_HANDLE_EOF             syscall.Errno = 38
  16         ERROR_NETNAME_DELETED        syscall.Errno = 64
  17         ERROR_FILE_EXISTS            syscall.Errno = 80
  18         ERROR_BROKEN_PIPE            syscall.Errno = 109
  19         ERROR_BUFFER_OVERFLOW        syscall.Errno = 111
  20         ERROR_INSUFFICIENT_BUFFER    syscall.Errno = 122
  21         ERROR_MOD_NOT_FOUND          syscall.Errno = 126
  22         ERROR_PROC_NOT_FOUND         syscall.Errno = 127
  23         ERROR_ALREADY_EXISTS         syscall.Errno = 183
  24         ERROR_ENVVAR_NOT_FOUND       syscall.Errno = 203
  25         ERROR_MORE_DATA              syscall.Errno = 234
  26         ERROR_OPERATION_ABORTED      syscall.Errno = 995
  27         ERROR_IO_PENDING             syscall.Errno = 997
  28         ERROR_SERVICE_SPECIFIC_ERROR syscall.Errno = 1066
  29         ERROR_NOT_FOUND              syscall.Errno = 1168
  30         ERROR_PRIVILEGE_NOT_HELD     syscall.Errno = 1314
  31         WSAEACCES                    syscall.Errno = 10013
  32         WSAECONNRESET                syscall.Errno = 10054
  33 )
  34
  35 const (
  36         // Invented values to support what package os expects.
  37         O_RDONLY   = 0x00000
  38         O_WRONLY   = 0x00001
  39         O_RDWR     = 0x00002
  40         O_CREAT    = 0x00040
  41         O_EXCL     = 0x00080
  42         O_NOCTTY   = 0x00100
  43         O_TRUNC    = 0x00200
  44         O_NONBLOCK = 0x00800
  45         O_APPEND   = 0x00400
  46         O_SYNC     = 0x01000
  47         O_ASYNC    = 0x02000
  48         O_CLOEXEC  = 0x80000
  49 )
  50
  51 const (
  52         // More invented values for signals
  53         SIGHUP  = Signal(0x1)
  54         SIGINT  = Signal(0x2)
  55         SIGQUIT = Signal(0x3)
  56         SIGILL  = Signal(0x4)
  57         SIGTRAP = Signal(0x5)
  58         SIGABRT = Signal(0x6)
  59         SIGBUS  = Signal(0x7)
  60         SIGFPE  = Signal(0x8)
  61         SIGKILL = Signal(0x9)
  62         SIGSEGV = Signal(0xb)
  63         SIGPIPE = Signal(0xd)
  64         SIGALRM = Signal(0xe)
  65         SIGTERM = Signal(0xf)
  66 )
  67
  68 var signals = [...]string{
  69         1:  "hangup",
  70         2:  "interrupt",
  71         3:  "quit",
  72         4:  "illegal instruction",
  73         5:  "trace/breakpoint trap",
  74         6:  "aborted",
  75         7:  "bus error",
  76         8:  "floating point exception",
  77         9:  "killed",
  78         10: "user defined signal 1",
  79         11: "segmentation fault",
  80         12: "user defined signal 2",
  81         13: "broken pipe",
  82         14: "alarm clock",
  83         15: "terminated",
  84 }
  85
  86 const (
  87         GENERIC_READ    = 0x80000000
  88         GENERIC_WRITE   = 0x40000000
  89         GENERIC_EXECUTE = 0x20000000
  90         GENERIC_ALL     = 0x10000000
  91
  92         FILE_LIST_DIRECTORY   = 0x00000001
  93         FILE_APPEND_DATA      = 0x00000004
  94         FILE_WRITE_ATTRIBUTES = 0x00000100
  95
  96         FILE_SHARE_READ              = 0x00000001
  97         FILE_SHARE_WRITE             = 0x00000002
  98         FILE_SHARE_DELETE            = 0x00000004
  99         FILE_ATTRIBUTE_READONLY      = 0x00000001
 100         FILE_ATTRIBUTE_HIDDEN        = 0x00000002
 101         FILE_ATTRIBUTE_SYSTEM        = 0x00000004
 102         FILE_ATTRIBUTE_DIRECTORY     = 0x00000010
 103         FILE_ATTRIBUTE_ARCHIVE       = 0x00000020
 104         FILE_ATTRIBUTE_NORMAL        = 0x00000080
 105         FILE_ATTRIBUTE_REPARSE_POINT = 0x00000400
 106
 107         INVALID_FILE_ATTRIBUTES = 0xffffffff
 108
 109         CREATE_NEW        = 1
 110         CREATE_ALWAYS     = 2
 111         OPEN_EXISTING     = 3
 112         OPEN_ALWAYS       = 4
 113         TRUNCATE_EXISTING = 5
 114
 115         FILE_FLAG_OPEN_REPARSE_POINT = 0x00200000
 116         FILE_FLAG_BACKUP_SEMANTICS   = 0x02000000
 117         FILE_FLAG_OVERLAPPED         = 0x40000000
 118
 119         HANDLE_FLAG_INHERIT    = 0x00000001
 120         STARTF_USESTDHANDLES   = 0x00000100
 121         STARTF_USESHOWWINDOW   = 0x00000001
 122         DUPLICATE_CLOSE_SOURCE = 0x00000001
 123         DUPLICATE_SAME_ACCESS  = 0x00000002
 124
 125         STD_INPUT_HANDLE  = -10 & (1<<32 - 1)
 126         STD_OUTPUT_HANDLE = -11 & (1<<32 - 1)
 127         STD_ERROR_HANDLE  = -12 & (1<<32 - 1)
 128
 129         FILE_BEGIN   = 0
 130         FILE_CURRENT = 1
 131         FILE_END     = 2
 132
 133         LANG_ENGLISH       = 0x09
 134         SUBLANG_ENGLISH_US = 0x01
 135
 136         FORMAT_MESSAGE_ALLOCATE_BUFFER = 256
 137         FORMAT_MESSAGE_IGNORE_INSERTS  = 512
 138         FORMAT_MESSAGE_FROM_STRING     = 1024
 139         FORMAT_MESSAGE_FROM_HMODULE    = 2048
 140         FORMAT_MESSAGE_FROM_SYSTEM     = 4096
 141         FORMAT_MESSAGE_ARGUMENT_ARRAY  = 8192
 142         FORMAT_MESSAGE_MAX_WIDTH_MASK  = 255
 143
 144         MAX_PATH      = 260
 145         MAX_LONG_PATH = 32768
 146
 147         MAX_COMPUTERNAME_LENGTH = 15
 148
 149         TIME_ZONE_ID_UNKNOWN  = 0
 150         TIME_ZONE_ID_STANDARD = 1
 151
 152         TIME_ZONE_ID_DAYLIGHT = 2
 153         IGNORE                = 0
 154         INFINITE              = 0xffffffff
 155
 156         WAIT_TIMEOUT   = 258
 157         WAIT_ABANDONED = 0x00000080
 158         WAIT_OBJECT_0  = 0x00000000
 159         WAIT_FAILED    = 0xFFFFFFFF
 160
 161         CREATE_NEW_PROCESS_GROUP   = 0x00000200
 162         CREATE_UNICODE_ENVIRONMENT = 0x00000400
 163
 164         PROCESS_TERMINATE         = 1
 165         PROCESS_QUERY_INFORMATION = 0x00000400
 166         SYNCHRONIZE               = 0x00100000
 167
 168         PAGE_READONLY          = 0x02
 169         PAGE_READWRITE         = 0x04
 170         PAGE_WRITECOPY         = 0x08
 171         PAGE_EXECUTE_READ      = 0x20
 172         PAGE_EXECUTE_READWRITE = 0x40
 173         PAGE_EXECUTE_WRITECOPY = 0x80
 174
 175         FILE_MAP_COPY    = 0x01
 176         FILE_MAP_WRITE   = 0x02
 177         FILE_MAP_READ    = 0x04
 178         FILE_MAP_EXECUTE = 0x20
 179
 180         CTRL_C_EVENT     = 0
 181         CTRL_BREAK_EVENT = 1
 182
 183         // Windows reserves errors >= 1<<29 for application use.
 184         APPLICATION_ERROR = 1 << 29
 185 )
 186
 187 const (
 188         // flags for CreateToolhelp32Snapshot
 189         TH32CS_SNAPHEAPLIST = 0x01
 190         TH32CS_SNAPPROCESS  = 0x02
 191         TH32CS_SNAPTHREAD   = 0x04
 192         TH32CS_SNAPMODULE   = 0x08
 193         TH32CS_SNAPMODULE32 = 0x10
 194         TH32CS_SNAPALL      = TH32CS_SNAPHEAPLIST | TH32CS_SNAPMODULE | TH32CS_SNAPPROCESS | TH32CS_SNAPTHREAD
 195         TH32CS_INHERIT      = 0x80000000
 196 )
 197
 198 const (
 199         // filters for ReadDirectoryChangesW
 200         FILE_NOTIFY_CHANGE_FILE_NAME   = 0x001
 201         FILE_NOTIFY_CHANGE_DIR_NAME    = 0x002
 202         FILE_NOTIFY_CHANGE_ATTRIBUTES  = 0x004
 203         FILE_NOTIFY_CHANGE_SIZE        = 0x008
 204         FILE_NOTIFY_CHANGE_LAST_WRITE  = 0x010
 205         FILE_NOTIFY_CHANGE_LAST_ACCESS = 0x020
 206         FILE_NOTIFY_CHANGE_CREATION    = 0x040
 207         FILE_NOTIFY_CHANGE_SECURITY    = 0x100
 208 )
 209
 210 const (
 211         // do not reorder
 212         FILE_ACTION_ADDED = iota + 1
 213         FILE_ACTION_REMOVED
 214         FILE_ACTION_MODIFIED
 215         FILE_ACTION_RENAMED_OLD_NAME
 216         FILE_ACTION_RENAMED_NEW_NAME
 217 )
 218
 219 const (
 220         // wincrypt.h
 221         PROV_RSA_FULL                    = 1
 222         PROV_RSA_SIG                     = 2
 223         PROV_DSS                         = 3
 224         PROV_FORTEZZA                    = 4
 225         PROV_MS_EXCHANGE                 = 5
 226         PROV_SSL                         = 6
 227         PROV_RSA_SCHANNEL                = 12
 228         PROV_DSS_DH                      = 13
 229         PROV_EC_ECDSA_SIG                = 14
 230         PROV_EC_ECNRA_SIG                = 15
 231         PROV_EC_ECDSA_FULL               = 16
 232         PROV_EC_ECNRA_FULL               = 17
 233         PROV_DH_SCHANNEL                 = 18
 234         PROV_SPYRUS_LYNKS                = 20
 235         PROV_RNG                         = 21
 236         PROV_INTEL_SEC                   = 22
 237         PROV_REPLACE_OWF                 = 23
 238         PROV_RSA_AES                     = 24
 239         CRYPT_VERIFYCONTEXT              = 0xF0000000
 240         CRYPT_NEWKEYSET                  = 0x00000008
 241         CRYPT_DELETEKEYSET               = 0x00000010
 242         CRYPT_MACHINE_KEYSET             = 0x00000020
 243         CRYPT_SILENT                     = 0x00000040
 244         CRYPT_DEFAULT_CONTAINER_OPTIONAL = 0x00000080
 245
 246         USAGE_MATCH_TYPE_AND = 0
 247         USAGE_MATCH_TYPE_OR  = 1
 248
 249         X509_ASN_ENCODING   = 0x00000001
 250         PKCS_7_ASN_ENCODING = 0x00010000
 251
 252         CERT_STORE_PROV_MEMORY = 2
 253
 254         CERT_STORE_ADD_ALWAYS = 4
 255
 256         CERT_STORE_DEFER_CLOSE_UNTIL_LAST_FREE_FLAG = 0x00000004
 257
 258         CERT_TRUST_NO_ERROR                          = 0x00000000
 259         CERT_TRUST_IS_NOT_TIME_VALID                 = 0x00000001
 260         CERT_TRUST_IS_REVOKED                        = 0x00000004
 261         CERT_TRUST_IS_NOT_SIGNATURE_VALID            = 0x00000008
 262         CERT_TRUST_IS_NOT_VALID_FOR_USAGE            = 0x00000010
 263         CERT_TRUST_IS_UNTRUSTED_ROOT                 = 0x00000020
 264         CERT_TRUST_REVOCATION_STATUS_UNKNOWN         = 0x00000040
 265         CERT_TRUST_IS_CYCLIC                         = 0x00000080
 266         CERT_TRUST_INVALID_EXTENSION                 = 0x00000100
 267         CERT_TRUST_INVALID_POLICY_CONSTRAINTS        = 0x00000200
 268         CERT_TRUST_INVALID_BASIC_CONSTRAINTS         = 0x00000400
 269         CERT_TRUST_INVALID_NAME_CONSTRAINTS          = 0x00000800
 270         CERT_TRUST_HAS_NOT_SUPPORTED_NAME_CONSTRAINT = 0x00001000
 271         CERT_TRUST_HAS_NOT_DEFINED_NAME_CONSTRAINT   = 0x00002000
 272         CERT_TRUST_HAS_NOT_PERMITTED_NAME_CONSTRAINT = 0x00004000
 273         CERT_TRUST_HAS_EXCLUDED_NAME_CONSTRAINT      = 0x00008000
 274         CERT_TRUST_IS_OFFLINE_REVOCATION             = 0x01000000
 275         CERT_TRUST_NO_ISSUANCE_CHAIN_POLICY          = 0x02000000
 276         CERT_TRUST_IS_EXPLICIT_DISTRUST              = 0x04000000
 277         CERT_TRUST_HAS_NOT_SUPPORTED_CRITICAL_EXT    = 0x08000000
 278
 279         CERT_CHAIN_POLICY_BASE              = 1
 280         CERT_CHAIN_POLICY_AUTHENTICODE      = 2
 281         CERT_CHAIN_POLICY_AUTHENTICODE_TS   = 3
 282         CERT_CHAIN_POLICY_SSL               = 4
 283         CERT_CHAIN_POLICY_BASIC_CONSTRAINTS = 5
 284         CERT_CHAIN_POLICY_NT_AUTH           = 6
 285         CERT_CHAIN_POLICY_MICROSOFT_ROOT    = 7
 286         CERT_CHAIN_POLICY_EV                = 8
 287
 288         CERT_E_EXPIRED       = 0x800B0101
 289         CERT_E_ROLE          = 0x800B0103
 290         CERT_E_PURPOSE       = 0x800B0106
 291         CERT_E_UNTRUSTEDROOT = 0x800B0109
 292         CERT_E_CN_NO_MATCH   = 0x800B010F
 293
 294         AUTHTYPE_CLIENT = 1
 295         AUTHTYPE_SERVER = 2
 296 )
 297
 298 var (
 299         OID_PKIX_KP_SERVER_AUTH = []byte("1.3.6.1.5.5.7.3.1\x00")
 300         OID_SERVER_GATED_CRYPTO = []byte("1.3.6.1.4.1.311.10.3.3\x00")
 301         OID_SGC_NETSCAPE        = []byte("2.16.840.1.113730.4.1\x00")
 302 )
 303
 304 // Invented values to support what package os expects.
 305 type Timeval struct {
 306         Sec  int32
 307         Usec int32
 308 }
 309
 310 func (tv *Timeval) Nanoseconds() int64 {
 311         return (int64(tv.Sec)*1e6 + int64(tv.Usec)) * 1e3
 312 }
 313
 314 func NsecToTimeval(nsec int64) (tv Timeval) {
 315         tv.Sec = int32(nsec / 1e9)
 316         tv.Usec = int32(nsec % 1e9 / 1e3)
 317         return
 318 }
 319
 320 type SecurityAttributes struct {
 321         Length             uint32
 322         SecurityDescriptor uintptr
 323         InheritHandle      uint32
 324 }
 325
 326 type Overlapped struct {
 327         Internal     uintptr
 328         InternalHigh uintptr
 329         Offset       uint32
 330         OffsetHigh   uint32
 331         HEvent       Handle
 332 }
 333
 334 type FileNotifyInformation struct {
 335         NextEntryOffset uint32
 336         Action          uint32
 337         FileNameLength  uint32
 338         FileName        uint16
 339 }
 340
 341 type Filetime struct {
 342         LowDateTime  uint32
 343         HighDateTime uint32
 344 }
 345
 346 // Nanoseconds returns Filetime ft in nanoseconds
 347 // since Epoch (00:00:00 UTC, January 1, 1970).
 348 func (ft *Filetime) Nanoseconds() int64 {
 349         // 100-nanosecond intervals since January 1, 1601
 350         nsec := int64(ft.HighDateTime)<<32 + int64(ft.LowDateTime)
 351         // change starting time to the Epoch (00:00:00 UTC, January 1, 1970)
 352         nsec -= 116444736000000000
 353         // convert into nanoseconds
 354         nsec *= 100
 355         return nsec
 356 }
 357
 358 func NsecToFiletime(nsec int64) (ft Filetime) {
 359         // convert into 100-nanosecond
 360         nsec /= 100
 361         // change starting time to January 1, 1601
 362         nsec += 116444736000000000
 363         // split into high / low
 364         ft.LowDateTime = uint32(nsec & 0xffffffff)
 365         ft.HighDateTime = uint32(nsec >> 32 & 0xffffffff)
 366         return ft
 367 }
 368
 369 type Win32finddata struct {
 370         FileAttributes    uint32
 371         CreationTime      Filetime
 372         LastAccessTime    Filetime
 373         LastWriteTime     Filetime
 374         FileSizeHigh      uint32
 375         FileSizeLow       uint32
 376         Reserved0         uint32
 377         Reserved1         uint32
 378         FileName          [MAX_PATH - 1]uint16
 379         AlternateFileName [13]uint16
 380 }
 381
 382 // This is the actual system call structure.
 383 // Win32finddata is what we committed to in Go 1.
 384 type win32finddata1 struct {
 385         FileAttributes    uint32
 386         CreationTime      Filetime
 387         LastAccessTime    Filetime
 388         LastWriteTime     Filetime
 389         FileSizeHigh      uint32
 390         FileSizeLow       uint32
 391         Reserved0         uint32
 392         Reserved1         uint32
 393         FileName          [MAX_PATH]uint16
 394         AlternateFileName [14]uint16
 395 }
 396
 397 func copyFindData(dst *Win32finddata, src *win32finddata1) {
 398         dst.FileAttributes = src.FileAttributes
 399         dst.CreationTime = src.CreationTime
 400         dst.LastAccessTime = src.LastAccessTime
 401         dst.LastWriteTime = src.LastWriteTime
 402         dst.FileSizeHigh = src.FileSizeHigh
 403         dst.FileSizeLow = src.FileSizeLow
 404         dst.Reserved0 = src.Reserved0
 405         dst.Reserved1 = src.Reserved1
 406
 407         // The src is 1 element bigger than dst, but it must be NUL.
 408         copy(dst.FileName[:], src.FileName[:])
 409         copy(dst.AlternateFileName[:], src.AlternateFileName[:])
 410 }
 411
 412 type ByHandleFileInformation struct {
 413         FileAttributes     uint32
 414         CreationTime       Filetime
 415         LastAccessTime     Filetime
 416         LastWriteTime      Filetime
 417         VolumeSerialNumber uint32
 418         FileSizeHigh       uint32
 419         FileSizeLow        uint32
 420         NumberOfLinks      uint32
 421         FileIndexHigh      uint32
 422         FileIndexLow       uint32
 423 }
 424
 425 const (
 426         GetFileExInfoStandard = 0
 427         GetFileExMaxInfoLevel = 1
 428 )
 429
 430 type Win32FileAttributeData struct {
 431         FileAttributes uint32
 432         CreationTime   Filetime
 433         LastAccessTime Filetime
 434         LastWriteTime  Filetime
 435         FileSizeHigh   uint32
 436         FileSizeLow    uint32
 437 }
 438
 439 // ShowWindow constants
 440 const (
 441         // winuser.h
 442         SW_HIDE            = 0
 443         SW_NORMAL          = 1
 444         SW_SHOWNORMAL      = 1
 445         SW_SHOWMINIMIZED   = 2
 446         SW_SHOWMAXIMIZED   = 3
 447         SW_MAXIMIZE        = 3
 448         SW_SHOWNOACTIVATE  = 4
 449         SW_SHOW            = 5
 450         SW_MINIMIZE        = 6
 451         SW_SHOWMINNOACTIVE = 7
 452         SW_SHOWNA          = 8
 453         SW_RESTORE         = 9
 454         SW_SHOWDEFAULT     = 10
 455         SW_FORCEMINIMIZE   = 11
 456 )
 457
 458 type StartupInfo struct {
 459         Cb            uint32
 460         _             *uint16
 461         Desktop       *uint16
 462         Title         *uint16
 463         X             uint32
 464         Y             uint32
 465         XSize         uint32
 466         YSize         uint32
 467         XCountChars   uint32
 468         YCountChars   uint32
 469         FillAttribute uint32
 470         Flags         uint32
 471         ShowWindow    uint16
 472         _             uint16
 473         _             *byte
 474         StdInput      Handle
 475         StdOutput     Handle
 476         StdErr        Handle
 477 }
 478
 479 type ProcessInformation struct {
 480         Process   Handle
 481         Thread    Handle
 482         ProcessId uint32
 483         ThreadId  uint32
 484 }
 485
 486 type ProcessEntry32 struct {
 487         Size            uint32
 488         Usage           uint32
 489         ProcessID       uint32
 490         DefaultHeapID   uintptr
 491         ModuleID        uint32
 492         Threads         uint32
 493         ParentProcessID uint32
 494         PriClassBase    int32
 495         Flags           uint32
 496         ExeFile         [MAX_PATH]uint16
 497 }
 498
 499 type Systemtime struct {
 500         Year         uint16
 501         Month        uint16
 502         DayOfWeek    uint16
 503         Day          uint16
 504         Hour         uint16
 505         Minute       uint16
 506         Second       uint16
 507         Milliseconds uint16
 508 }
 509
 510 type Timezoneinformation struct {
 511         Bias         int32
 512         StandardName [32]uint16
 513         StandardDate Systemtime
 514         StandardBias int32
 515         DaylightName [32]uint16
 516         DaylightDate Systemtime
 517         DaylightBias int32
 518 }
 519
 520 // Socket related.
 521
 522 const (
 523         AF_UNSPEC  = 0
 524         AF_UNIX    = 1
 525         AF_INET    = 2
 526         AF_INET6   = 23
 527         AF_NETBIOS = 17
 528
 529         SOCK_STREAM    = 1
 530         SOCK_DGRAM     = 2
 531         SOCK_RAW       = 3
 532         SOCK_SEQPACKET = 5
 533
 534         IPPROTO_IP   = 0
 535         IPPROTO_IPV6 = 0x29
 536         IPPROTO_TCP  = 6
 537         IPPROTO_UDP  = 17
 538
 539         SOL_SOCKET                = 0xffff
 540         SO_REUSEADDR              = 4
 541         SO_KEEPALIVE              = 8
 542         SO_DONTROUTE              = 16
 543         SO_BROADCAST              = 32
 544         SO_LINGER                 = 128
 545         SO_RCVBUF                 = 0x1002
 546         SO_SNDBUF                 = 0x1001
 547         SO_UPDATE_ACCEPT_CONTEXT  = 0x700b
 548         SO_UPDATE_CONNECT_CONTEXT = 0x7010
 549
 550         IOC_OUT                            = 0x40000000
 551         IOC_IN                             = 0x80000000
 552         IOC_VENDOR                         = 0x18000000
 553         IOC_INOUT                          = IOC_IN | IOC_OUT
 554         IOC_WS2                            = 0x08000000
 555         SIO_GET_EXTENSION_FUNCTION_POINTER = IOC_INOUT | IOC_WS2 | 6
 556         SIO_KEEPALIVE_VALS                 = IOC_IN | IOC_VENDOR | 4
 557         SIO_UDP_CONNRESET                  = IOC_IN | IOC_VENDOR | 12
 558
 559         // cf. http://support.microsoft.com/default.aspx?scid=kb;en-us;257460
 560
 561         IP_TOS             = 0x3
 562         IP_TTL             = 0x4
 563         IP_MULTICAST_IF    = 0x9
 564         IP_MULTICAST_TTL   = 0xa
 565         IP_MULTICAST_LOOP  = 0xb
 566         IP_ADD_MEMBERSHIP  = 0xc
 567         IP_DROP_MEMBERSHIP = 0xd
 568
 569         IPV6_V6ONLY         = 0x1b
 570         IPV6_UNICAST_HOPS   = 0x4
 571         IPV6_MULTICAST_IF   = 0x9
 572         IPV6_MULTICAST_HOPS = 0xa
 573         IPV6_MULTICAST_LOOP = 0xb
 574         IPV6_JOIN_GROUP     = 0xc
 575         IPV6_LEAVE_GROUP    = 0xd
 576
 577         SOMAXCONN = 0x7fffffff
 578
 579         TCP_NODELAY = 1
 580
 581         SHUT_RD   = 0
 582         SHUT_WR   = 1
 583         SHUT_RDWR = 2
 584
 585         WSADESCRIPTION_LEN = 256
 586         WSASYS_STATUS_LEN  = 128
 587 )
 588
 589 type WSABuf struct {
 590         Len uint32
 591         Buf *byte
 592 }
 593
 594 // Invented values to support what package os expects.
 595 const (
 596         S_IFMT   = 0x1f000
 597         S_IFIFO  = 0x1000
 598         S_IFCHR  = 0x2000
 599         S_IFDIR  = 0x4000
 600         S_IFBLK  = 0x6000
 601         S_IFREG  = 0x8000
 602         S_IFLNK  = 0xa000
 603         S_IFSOCK = 0xc000
 604         S_ISUID  = 0x800
 605         S_ISGID  = 0x400
 606         S_ISVTX  = 0x200
 607         S_IRUSR  = 0x100
 608         S_IWRITE = 0x80
 609         S_IWUSR  = 0x80
 610         S_IXUSR  = 0x40
 611 )
 612
 613 const (
 614         FILE_TYPE_CHAR    = 0x0002
 615         FILE_TYPE_DISK    = 0x0001
 616         FILE_TYPE_PIPE    = 0x0003
 617         FILE_TYPE_REMOTE  = 0x8000
 618         FILE_TYPE_UNKNOWN = 0x0000
 619 )
 620
 621 type Hostent struct {
 622         Name     *byte
 623         Aliases  **byte
 624         AddrType uint16
 625         Length   uint16
 626         AddrList **byte
 627 }
 628
 629 type Protoent struct {
 630         Name    *byte
 631         Aliases **byte
 632         Proto   uint16
 633 }
 634
 635 const (
 636         DNS_TYPE_A       = 0x0001
 637         DNS_TYPE_NS      = 0x0002
 638         DNS_TYPE_MD      = 0x0003
 639         DNS_TYPE_MF      = 0x0004
 640         DNS_TYPE_CNAME   = 0x0005
 641         DNS_TYPE_SOA     = 0x0006
 642         DNS_TYPE_MB      = 0x0007
 643         DNS_TYPE_MG      = 0x0008
 644         DNS_TYPE_MR      = 0x0009
 645         DNS_TYPE_NULL    = 0x000a
 646         DNS_TYPE_WKS     = 0x000b
 647         DNS_TYPE_PTR     = 0x000c
 648         DNS_TYPE_HINFO   = 0x000d
 649         DNS_TYPE_MINFO   = 0x000e
 650         DNS_TYPE_MX      = 0x000f
 651         DNS_TYPE_TEXT    = 0x0010
 652         DNS_TYPE_RP      = 0x0011
 653         DNS_TYPE_AFSDB   = 0x0012
 654         DNS_TYPE_X25     = 0x0013
 655         DNS_TYPE_ISDN    = 0x0014
 656         DNS_TYPE_RT      = 0x0015
 657         DNS_TYPE_NSAP    = 0x0016
 658         DNS_TYPE_NSAPPTR = 0x0017
 659         DNS_TYPE_SIG     = 0x0018
 660         DNS_TYPE_KEY     = 0x0019
 661         DNS_TYPE_PX      = 0x001a
 662         DNS_TYPE_GPOS    = 0x001b
 663         DNS_TYPE_AAAA    = 0x001c
 664         DNS_TYPE_LOC     = 0x001d
 665         DNS_TYPE_NXT     = 0x001e
 666         DNS_TYPE_EID     = 0x001f
 667         DNS_TYPE_NIMLOC  = 0x0020
 668         DNS_TYPE_SRV     = 0x0021
 669         DNS_TYPE_ATMA    = 0x0022
 670         DNS_TYPE_NAPTR   = 0x0023
 671         DNS_TYPE_KX      = 0x0024
 672         DNS_TYPE_CERT    = 0x0025
 673         DNS_TYPE_A6      = 0x0026
 674         DNS_TYPE_DNAME   = 0x0027
 675         DNS_TYPE_SINK    = 0x0028
 676         DNS_TYPE_OPT     = 0x0029
 677         DNS_TYPE_DS      = 0x002B
 678         DNS_TYPE_RRSIG   = 0x002E
 679         DNS_TYPE_NSEC    = 0x002F
 680         DNS_TYPE_DNSKEY  = 0x0030
 681         DNS_TYPE_DHCID   = 0x0031
 682         DNS_TYPE_UINFO   = 0x0064
 683         DNS_TYPE_UID     = 0x0065
 684         DNS_TYPE_GID     = 0x0066
 685         DNS_TYPE_UNSPEC  = 0x0067
 686         DNS_TYPE_ADDRS   = 0x00f8
 687         DNS_TYPE_TKEY    = 0x00f9
 688         DNS_TYPE_TSIG    = 0x00fa
 689         DNS_TYPE_IXFR    = 0x00fb
 690         DNS_TYPE_AXFR    = 0x00fc
 691         DNS_TYPE_MAILB   = 0x00fd
 692         DNS_TYPE_MAILA   = 0x00fe
 693         DNS_TYPE_ALL     = 0x00ff
 694         DNS_TYPE_ANY     = 0x00ff
 695         DNS_TYPE_WINS    = 0xff01
 696         DNS_TYPE_WINSR   = 0xff02
 697         DNS_TYPE_NBSTAT  = 0xff01
 698 )
 699
 700 const (
 701         DNS_INFO_NO_RECORDS = 0x251D
 702 )
 703
 704 const (
 705         // flags inside DNSRecord.Dw
 706         DnsSectionQuestion   = 0x0000
 707         DnsSectionAnswer     = 0x0001
 708         DnsSectionAuthority  = 0x0002
 709         DnsSectionAdditional = 0x0003
 710 )
 711
 712 type DNSSRVData struct {
 713         Target   *uint16
 714         Priority uint16
 715         Weight   uint16
 716         Port     uint16
 717         Pad      uint16
 718 }
 719
 720 type DNSPTRData struct {
 721         Host *uint16
 722 }
 723
 724 type DNSMXData struct {
 725         NameExchange *uint16
 726         Preference   uint16
 727         Pad          uint16
 728 }
 729
 730 type DNSTXTData struct {
 731         StringCount uint16
 732         StringArray [1]*uint16
 733 }
 734
 735 type DNSRecord struct {
 736         Next     *DNSRecord
 737         Name     *uint16
 738         Type     uint16
 739         Length   uint16
 740         Dw       uint32
 741         Ttl      uint32
 742         Reserved uint32
 743         Data     [40]byte
 744 }
 745
 746 const (
 747         TF_DISCONNECT         = 1
 748         TF_REUSE_SOCKET       = 2
 749         TF_WRITE_BEHIND       = 4
 750         TF_USE_DEFAULT_WORKER = 0
 751         TF_USE_SYSTEM_THREAD  = 16
 752         TF_USE_KERNEL_APC     = 32
 753 )
 754
 755 type TransmitFileBuffers struct {
 756         Head       uintptr
 757         HeadLength uint32
 758         Tail       uintptr
 759         TailLength uint32
 760 }
 761
 762 const (
 763         IFF_UP           = 1
 764         IFF_BROADCAST    = 2
 765         IFF_LOOPBACK     = 4
 766         IFF_POINTTOPOINT = 8
 767         IFF_MULTICAST    = 16
 768 )
 769
 770 const SIO_GET_INTERFACE_LIST = 0x4004747F
 771
 772 // TODO(mattn): SockaddrGen is union of sockaddr/sockaddr_in/sockaddr_in6_old.
 773 // will be fixed to change variable type as suitable.
 774
 775 type SockaddrGen [24]byte
 776
 777 type InterfaceInfo struct {
 778         Flags            uint32
 779         Address          SockaddrGen
 780         BroadcastAddress SockaddrGen
 781         Netmask          SockaddrGen
 782 }
 783
 784 type IpAddressString struct {
 785         String [16]byte
 786 }
 787
 788 type IpMaskString IpAddressString
 789
 790 type IpAddrString struct {
 791         Next      *IpAddrString
 792         IpAddress IpAddressString
 793         IpMask    IpMaskString
 794         Context   uint32
 795 }
 796
 797 const MAX_ADAPTER_NAME_LENGTH = 256
 798 const MAX_ADAPTER_DESCRIPTION_LENGTH = 128
 799 const MAX_ADAPTER_ADDRESS_LENGTH = 8
 800
 801 type IpAdapterInfo struct {
 802         Next                *IpAdapterInfo
 803         ComboIndex          uint32
 804         AdapterName         [MAX_ADAPTER_NAME_LENGTH + 4]byte
 805         Description         [MAX_ADAPTER_DESCRIPTION_LENGTH + 4]byte
 806         AddressLength       uint32
 807         Address             [MAX_ADAPTER_ADDRESS_LENGTH]byte
 808         Index               uint32
 809         Type                uint32
 810         DhcpEnabled         uint32
 811         CurrentIpAddress    *IpAddrString
 812         IpAddressList       IpAddrString
 813         GatewayList         IpAddrString
 814         DhcpServer          IpAddrString
 815         HaveWins            bool
 816         PrimaryWinsServer   IpAddrString
 817         SecondaryWinsServer IpAddrString
 818         LeaseObtained       int64
 819         LeaseExpires        int64
 820 }
 821
 822 const MAXLEN_PHYSADDR = 8
 823 const MAX_INTERFACE_NAME_LEN = 256
 824 const MAXLEN_IFDESCR = 256
 825
 826 type MibIfRow struct {
 827         Name            [MAX_INTERFACE_NAME_LEN]uint16
 828         Index           uint32
 829         Type            uint32
 830         Mtu             uint32
 831         Speed           uint32
 832         PhysAddrLen     uint32
 833         PhysAddr        [MAXLEN_PHYSADDR]byte
 834         AdminStatus     uint32
 835         OperStatus      uint32
 836         LastChange      uint32
 837         InOctets        uint32
 838         InUcastPkts     uint32
 839         InNUcastPkts    uint32
 840         InDiscards      uint32
 841         InErrors        uint32
 842         InUnknownProtos uint32
 843         OutOctets       uint32
 844         OutUcastPkts    uint32
 845         OutNUcastPkts   uint32
 846         OutDiscards     uint32
 847         OutErrors       uint32
 848         OutQLen         uint32
 849         DescrLen        uint32
 850         Descr           [MAXLEN_IFDESCR]byte
 851 }
 852
 853 type CertContext struct {
 854         EncodingType uint32
 855         EncodedCert  *byte
 856         Length       uint32
 857         CertInfo     uintptr
 858         Store        Handle
 859 }
 860
 861 type CertChainContext struct {
 862         Size                       uint32
 863         TrustStatus                CertTrustStatus
 864         ChainCount                 uint32
 865         Chains                     **CertSimpleChain
 866         LowerQualityChainCount     uint32
 867         LowerQualityChains         **CertChainContext
 868         HasRevocationFreshnessTime uint32
 869         RevocationFreshnessTime    uint32
 870 }
 871
 872 type CertSimpleChain struct {
 873         Size                       uint32
 874         TrustStatus                CertTrustStatus
 875         NumElements                uint32
 876         Elements                   **CertChainElement
 877         TrustListInfo              uintptr
 878         HasRevocationFreshnessTime uint32
 879         RevocationFreshnessTime    uint32
 880 }
 881
 882 type CertChainElement struct {
 883         Size              uint32
 884         CertContext       *CertContext
 885         TrustStatus       CertTrustStatus
 886         RevocationInfo    *CertRevocationInfo
 887         IssuanceUsage     *CertEnhKeyUsage
 888         ApplicationUsage  *CertEnhKeyUsage
 889         ExtendedErrorInfo *uint16
 890 }
 891
 892 type CertRevocationInfo struct {
 893         Size             uint32
 894         RevocationResult uint32
 895         RevocationOid    *byte
 896         OidSpecificInfo  uintptr
 897         HasFreshnessTime uint32
 898         FreshnessTime    uint32
 899         CrlInfo          uintptr // *CertRevocationCrlInfo
 900 }
 901
 902 type CertTrustStatus struct {
 903         ErrorStatus uint32
 904         InfoStatus  uint32
 905 }
 906
 907 type CertUsageMatch struct {
 908         Type  uint32
 909         Usage CertEnhKeyUsage
 910 }
 911
 912 type CertEnhKeyUsage struct {
 913         Length           uint32
 914         UsageIdentifiers **byte
 915 }
 916
 917 type CertChainPara struct {
 918         Size                         uint32
 919         RequestedUsage               CertUsageMatch
 920         RequstedIssuancePolicy       CertUsageMatch
 921         URLRetrievalTimeout          uint32
 922         CheckRevocationFreshnessTime uint32
 923         RevocationFreshnessTime      uint32
 924         CacheResync                  *Filetime
 925 }
 926
 927 type CertChainPolicyPara struct {
 928         Size            uint32
 929         Flags           uint32
 930         ExtraPolicyPara uintptr
 931 }
 932
 933 type SSLExtraCertChainPolicyPara struct {
 934         Size       uint32
 935         AuthType   uint32
 936         Checks     uint32
 937         ServerName *uint16
 938 }
 939
 940 type CertChainPolicyStatus struct {
 941         Size              uint32
 942         Error             uint32
 943         ChainIndex        uint32
 944         ElementIndex      uint32
 945         ExtraPolicyStatus uintptr
 946 }
 947
 948 const (
 949         // do not reorder
 950         HKEY_CLASSES_ROOT = 0x80000000 + iota
 951         HKEY_CURRENT_USER
 952         HKEY_LOCAL_MACHINE
 953         HKEY_USERS
 954         HKEY_PERFORMANCE_DATA
 955         HKEY_CURRENT_CONFIG
 956         HKEY_DYN_DATA
 957
 958         KEY_QUERY_VALUE        = 1
 959         KEY_SET_VALUE          = 2
 960         KEY_CREATE_SUB_KEY     = 4
 961         KEY_ENUMERATE_SUB_KEYS = 8
 962         KEY_NOTIFY             = 16
 963         KEY_CREATE_LINK        = 32
 964         KEY_WRITE              = 0x20006
 965         KEY_EXECUTE            = 0x20019
 966         KEY_READ               = 0x20019
 967         KEY_WOW64_64KEY        = 0x0100
 968         KEY_WOW64_32KEY        = 0x0200
 969         KEY_ALL_ACCESS         = 0xf003f
 970 )
 971
 972 const (
 973         // do not reorder
 974         REG_NONE = iota
 975         REG_SZ
 976         REG_EXPAND_SZ
 977         REG_BINARY
 978         REG_DWORD_LITTLE_ENDIAN
 979         REG_DWORD_BIG_ENDIAN
 980         REG_LINK
 981         REG_MULTI_SZ
 982         REG_RESOURCE_LIST
 983         REG_FULL_RESOURCE_DESCRIPTOR
 984         REG_RESOURCE_REQUIREMENTS_LIST
 985         REG_QWORD_LITTLE_ENDIAN
 986         REG_DWORD = REG_DWORD_LITTLE_ENDIAN
 987         REG_QWORD = REG_QWORD_LITTLE_ENDIAN
 988 )
 989
 990 type AddrinfoW struct {
 991         Flags     int32
 992         Family    int32
 993         Socktype  int32
 994         Protocol  int32
 995         Addrlen   uintptr
 996         Canonname *uint16
 997         Addr      uintptr
 998         Next      *AddrinfoW
 999 }
1000
1001 const (
1002         AI_PASSIVE     = 1
1003         AI_CANONNAME   = 2
1004         AI_NUMERICHOST = 4
1005 )
1006
1007 type GUID struct {
1008         Data1 uint32
1009         Data2 uint16
1010         Data3 uint16
1011         Data4 [8]byte
1012 }
1013
1014 var WSAID_CONNECTEX = GUID{
1015         0x25a207b9,
1016         0xddf3,
1017         0x4660,
1018         [8]byte{0x8e, 0xe9, 0x76, 0xe5, 0x8c, 0x74, 0x06, 0x3e},
1019 }
1020
1021 const (
1022         FILE_SKIP_COMPLETION_PORT_ON_SUCCESS = 1
1023         FILE_SKIP_SET_EVENT_ON_HANDLE        = 2
1024 )
1025
1026 const (
1027         WSAPROTOCOL_LEN    = 255
1028         MAX_PROTOCOL_CHAIN = 7
1029         BASE_PROTOCOL      = 1
1030         LAYERED_PROTOCOL   = 0
1031
1032         XP1_CONNECTIONLESS           = 0x00000001
1033         XP1_GUARANTEED_DELIVERY      = 0x00000002
1034         XP1_GUARANTEED_ORDER         = 0x00000004
1035         XP1_MESSAGE_ORIENTED         = 0x00000008
1036         XP1_PSEUDO_STREAM            = 0x00000010
1037         XP1_GRACEFUL_CLOSE           = 0x00000020
1038         XP1_EXPEDITED_DATA           = 0x00000040
1039         XP1_CONNECT_DATA             = 0x00000080
1040         XP1_DISCONNECT_DATA          = 0x00000100
1041         XP1_SUPPORT_BROADCAST        = 0x00000200
1042         XP1_SUPPORT_MULTIPOINT       = 0x00000400
1043         XP1_MULTIPOINT_CONTROL_PLANE = 0x00000800
1044         XP1_MULTIPOINT_DATA_PLANE    = 0x00001000
1045         XP1_QOS_SUPPORTED            = 0x00002000
1046         XP1_UNI_SEND                 = 0x00008000
1047         XP1_UNI_RECV                 = 0x00010000
1048         XP1_IFS_HANDLES              = 0x00020000
1049         XP1_PARTIAL_MESSAGE          = 0x00040000
1050         XP1_SAN_SUPPORT_SDP          = 0x00080000
1051
1052         PFL_MULTIPLE_PROTO_ENTRIES  = 0x00000001
1053         PFL_RECOMMENDED_PROTO_ENTRY = 0x00000002
1054         PFL_HIDDEN                  = 0x00000004
1055         PFL_MATCHES_PROTOCOL_ZERO   = 0x00000008
1056         PFL_NETWORKDIRECT_PROVIDER  = 0x00000010
1057 )
1058
1059 type WSAProtocolInfo struct {
1060         ServiceFlags1     uint32
1061         ServiceFlags2     uint32
1062         ServiceFlags3     uint32
1063         ServiceFlags4     uint32
1064         ProviderFlags     uint32
1065         ProviderId        GUID
1066         CatalogEntryId    uint32
1067         ProtocolChain     WSAProtocolChain
1068         Version           int32
1069         AddressFamily     int32
1070         MaxSockAddr       int32
1071         MinSockAddr       int32
1072         SocketType        int32
1073         Protocol          int32
1074         ProtocolMaxOffset int32
1075         NetworkByteOrder  int32
1076         SecurityScheme    int32
1077         MessageSize       uint32
1078         ProviderReserved  uint32
1079         ProtocolName      [WSAPROTOCOL_LEN + 1]uint16
1080 }
1081
1082 type WSAProtocolChain struct {
1083         ChainLen     int32
1084         ChainEntries [MAX_PROTOCOL_CHAIN]uint32
1085 }
1086
1087 type TCPKeepalive struct {
1088         OnOff    uint32
1089         Time     uint32
1090         Interval uint32
1091 }
1092
1093 type symbolicLinkReparseBuffer struct {
1094         SubstituteNameOffset uint16
1095         SubstituteNameLength uint16
1096         PrintNameOffset      uint16
1097         PrintNameLength      uint16
1098         Flags                uint32
1099         PathBuffer           [1]uint16
1100 }
1101
1102 type mountPointReparseBuffer struct {
1103         SubstituteNameOffset uint16
1104         SubstituteNameLength uint16
1105         PrintNameOffset      uint16
1106         PrintNameLength      uint16
1107         PathBuffer           [1]uint16
1108 }
1109
1110 type reparseDataBuffer struct {
1111         ReparseTag        uint32
1112         ReparseDataLength uint16
1113         Reserved          uint16
1114
1115         // GenericReparseBuffer
1116         reparseBuffer byte
1117 }
1118
1119 const (
1120         FSCTL_GET_REPARSE_POINT          = 0x900A8
1121         MAXIMUM_REPARSE_DATA_BUFFER_SIZE = 16 * 1024
1122         IO_REPARSE_TAG_MOUNT_POINT       = 0xA0000003
1123         IO_REPARSE_TAG_SYMLINK           = 0xA000000C
1124         SYMBOLIC_LINK_FLAG_DIRECTORY     = 0x1
1125 )
1126
1127 const (
1128         ComputerNameNetBIOS                   = 0
1129         ComputerNameDnsHostname               = 1
1130         ComputerNameDnsDomain                 = 2
1131         ComputerNameDnsFullyQualified         = 3
1132         ComputerNamePhysicalNetBIOS           = 4
1133         ComputerNamePhysicalDnsHostname       = 5
1134         ComputerNamePhysicalDnsDomain         = 6
1135         ComputerNamePhysicalDnsFullyQualified = 7
1136         ComputerNameMax                       = 8
1137 )
1138
1139 const (
1140         MOVEFILE_REPLACE_EXISTING      = 0x1
1141         MOVEFILE_COPY_ALLOWED          = 0x2
1142         MOVEFILE_DELAY_UNTIL_REBOOT    = 0x4
1143         MOVEFILE_WRITE_THROUGH         = 0x8
1144         MOVEFILE_CREATE_HARDLINK       = 0x10
1145         MOVEFILE_FAIL_IF_NOT_TRACKABLE = 0x20
1146 )
1147
1148 const GAA_FLAG_INCLUDE_PREFIX = 0x00000010
1149
1150 const (
1151         IF_TYPE_OTHER              = 1
1152         IF_TYPE_ETHERNET_CSMACD    = 6
1153         IF_TYPE_ISO88025_TOKENRING = 9
1154         IF_TYPE_PPP                = 23
1155         IF_TYPE_SOFTWARE_LOOPBACK  = 24
1156         IF_TYPE_ATM                = 37
1157         IF_TYPE_IEEE80211          = 71
1158         IF_TYPE_TUNNEL             = 131
1159         IF_TYPE_IEEE1394           = 144
1160 )
1161
1162 type SocketAddress struct {
1163         Sockaddr       *syscall.RawSockaddrAny
1164         SockaddrLength int32
1165 }
1166
1167 type IpAdapterUnicastAddress struct {
1168         Length             uint32
1169         Flags              uint32
1170         Next               *IpAdapterUnicastAddress
1171         Address            SocketAddress
1172         PrefixOrigin       int32
1173         SuffixOrigin       int32
1174         DadState           int32
1175         ValidLifetime      uint32
1176         PreferredLifetime  uint32
1177         LeaseLifetime      uint32
1178         OnLinkPrefixLength uint8
1179 }
1180
1181 type IpAdapterAnycastAddress struct {
1182         Length  uint32
1183         Flags   uint32
1184         Next    *IpAdapterAnycastAddress
1185         Address SocketAddress
1186 }
1187
1188 type IpAdapterMulticastAddress struct {
1189         Length  uint32
1190         Flags   uint32
1191         Next    *IpAdapterMulticastAddress
1192         Address SocketAddress
1193 }
1194
1195 type IpAdapterDnsServerAdapter struct {
1196         Length   uint32
1197         Reserved uint32
1198         Next     *IpAdapterDnsServerAdapter
1199         Address  SocketAddress
1200 }
1201
1202 type IpAdapterPrefix struct {
1203         Length       uint32
1204         Flags        uint32
1205         Next         *IpAdapterPrefix
1206         Address      SocketAddress
1207         PrefixLength uint32
1208 }
1209
1210 type IpAdapterAddresses struct {
1211         Length                uint32
1212         IfIndex               uint32
1213         Next                  *IpAdapterAddresses
1214         AdapterName           *byte
1215         FirstUnicastAddress   *IpAdapterUnicastAddress
1216         FirstAnycastAddress   *IpAdapterAnycastAddress
1217         FirstMulticastAddress *IpAdapterMulticastAddress
1218         FirstDnsServerAddress *IpAdapterDnsServerAdapter
1219         DnsSuffix             *uint16
1220         Description           *uint16
1221         FriendlyName          *uint16
1222         PhysicalAddress       [syscall.MAX_ADAPTER_ADDRESS_LENGTH]byte
1223         PhysicalAddressLength uint32
1224         Flags                 uint32
1225         Mtu                   uint32
1226         IfType                uint32
1227         OperStatus            uint32
1228         Ipv6IfIndex           uint32
1229         ZoneIndices           [16]uint32
1230         FirstPrefix           *IpAdapterPrefix
1231         /* more fields might be present here. */
1232 }
1233
1234 const (
1235         IfOperStatusUp             = 1
1236         IfOperStatusDown           = 2
1237         IfOperStatusTesting        = 3
1238         IfOperStatusUnknown        = 4
1239         IfOperStatusDormant        = 5
1240         IfOperStatusNotPresent     = 6
1241         IfOperStatusLowerLayerDown = 7
1242 )