sslobodr | d046be8 | 2019-01-16 10:02:22 -0500 | [diff] [blame] | 1 | // Copyright 2012 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 ( |
| 8 | "syscall" |
| 9 | "unsafe" |
| 10 | ) |
| 11 | |
| 12 | const ( |
| 13 | STANDARD_RIGHTS_REQUIRED = 0xf0000 |
| 14 | STANDARD_RIGHTS_READ = 0x20000 |
| 15 | STANDARD_RIGHTS_WRITE = 0x20000 |
| 16 | STANDARD_RIGHTS_EXECUTE = 0x20000 |
| 17 | STANDARD_RIGHTS_ALL = 0x1F0000 |
| 18 | ) |
| 19 | |
| 20 | const ( |
| 21 | NameUnknown = 0 |
| 22 | NameFullyQualifiedDN = 1 |
| 23 | NameSamCompatible = 2 |
| 24 | NameDisplay = 3 |
| 25 | NameUniqueId = 6 |
| 26 | NameCanonical = 7 |
| 27 | NameUserPrincipal = 8 |
| 28 | NameCanonicalEx = 9 |
| 29 | NameServicePrincipal = 10 |
| 30 | NameDnsDomain = 12 |
| 31 | ) |
| 32 | |
| 33 | // This function returns 1 byte BOOLEAN rather than the 4 byte BOOL. |
| 34 | // http://blogs.msdn.com/b/drnick/archive/2007/12/19/windows-and-upn-format-credentials.aspx |
| 35 | //sys TranslateName(accName *uint16, accNameFormat uint32, desiredNameFormat uint32, translatedName *uint16, nSize *uint32) (err error) [failretval&0xff==0] = secur32.TranslateNameW |
| 36 | //sys GetUserNameEx(nameFormat uint32, nameBuffre *uint16, nSize *uint32) (err error) [failretval&0xff==0] = secur32.GetUserNameExW |
| 37 | |
| 38 | // TranslateAccountName converts a directory service |
| 39 | // object name from one format to another. |
| 40 | func TranslateAccountName(username string, from, to uint32, initSize int) (string, error) { |
| 41 | u, e := UTF16PtrFromString(username) |
| 42 | if e != nil { |
| 43 | return "", e |
| 44 | } |
| 45 | n := uint32(50) |
| 46 | for { |
| 47 | b := make([]uint16, n) |
| 48 | e = TranslateName(u, from, to, &b[0], &n) |
| 49 | if e == nil { |
| 50 | return UTF16ToString(b[:n]), nil |
| 51 | } |
| 52 | if e != ERROR_INSUFFICIENT_BUFFER { |
| 53 | return "", e |
| 54 | } |
| 55 | if n <= uint32(len(b)) { |
| 56 | return "", e |
| 57 | } |
| 58 | } |
| 59 | } |
| 60 | |
| 61 | const ( |
| 62 | // do not reorder |
| 63 | NetSetupUnknownStatus = iota |
| 64 | NetSetupUnjoined |
| 65 | NetSetupWorkgroupName |
| 66 | NetSetupDomainName |
| 67 | ) |
| 68 | |
| 69 | type UserInfo10 struct { |
| 70 | Name *uint16 |
| 71 | Comment *uint16 |
| 72 | UsrComment *uint16 |
| 73 | FullName *uint16 |
| 74 | } |
| 75 | |
| 76 | //sys NetUserGetInfo(serverName *uint16, userName *uint16, level uint32, buf **byte) (neterr error) = netapi32.NetUserGetInfo |
| 77 | //sys NetGetJoinInformation(server *uint16, name **uint16, bufType *uint32) (neterr error) = netapi32.NetGetJoinInformation |
| 78 | //sys NetApiBufferFree(buf *byte) (neterr error) = netapi32.NetApiBufferFree |
| 79 | |
| 80 | const ( |
| 81 | // do not reorder |
| 82 | SidTypeUser = 1 + iota |
| 83 | SidTypeGroup |
| 84 | SidTypeDomain |
| 85 | SidTypeAlias |
| 86 | SidTypeWellKnownGroup |
| 87 | SidTypeDeletedAccount |
| 88 | SidTypeInvalid |
| 89 | SidTypeUnknown |
| 90 | SidTypeComputer |
| 91 | SidTypeLabel |
| 92 | ) |
| 93 | |
| 94 | type SidIdentifierAuthority struct { |
| 95 | Value [6]byte |
| 96 | } |
| 97 | |
| 98 | var ( |
| 99 | SECURITY_NULL_SID_AUTHORITY = SidIdentifierAuthority{[6]byte{0, 0, 0, 0, 0, 0}} |
| 100 | SECURITY_WORLD_SID_AUTHORITY = SidIdentifierAuthority{[6]byte{0, 0, 0, 0, 0, 1}} |
| 101 | SECURITY_LOCAL_SID_AUTHORITY = SidIdentifierAuthority{[6]byte{0, 0, 0, 0, 0, 2}} |
| 102 | SECURITY_CREATOR_SID_AUTHORITY = SidIdentifierAuthority{[6]byte{0, 0, 0, 0, 0, 3}} |
| 103 | SECURITY_NON_UNIQUE_AUTHORITY = SidIdentifierAuthority{[6]byte{0, 0, 0, 0, 0, 4}} |
| 104 | SECURITY_NT_AUTHORITY = SidIdentifierAuthority{[6]byte{0, 0, 0, 0, 0, 5}} |
| 105 | SECURITY_MANDATORY_LABEL_AUTHORITY = SidIdentifierAuthority{[6]byte{0, 0, 0, 0, 0, 16}} |
| 106 | ) |
| 107 | |
| 108 | const ( |
| 109 | SECURITY_NULL_RID = 0 |
| 110 | SECURITY_WORLD_RID = 0 |
| 111 | SECURITY_LOCAL_RID = 0 |
| 112 | SECURITY_CREATOR_OWNER_RID = 0 |
| 113 | SECURITY_CREATOR_GROUP_RID = 1 |
| 114 | SECURITY_DIALUP_RID = 1 |
| 115 | SECURITY_NETWORK_RID = 2 |
| 116 | SECURITY_BATCH_RID = 3 |
| 117 | SECURITY_INTERACTIVE_RID = 4 |
| 118 | SECURITY_LOGON_IDS_RID = 5 |
| 119 | SECURITY_SERVICE_RID = 6 |
| 120 | SECURITY_LOCAL_SYSTEM_RID = 18 |
| 121 | SECURITY_BUILTIN_DOMAIN_RID = 32 |
| 122 | SECURITY_PRINCIPAL_SELF_RID = 10 |
| 123 | SECURITY_CREATOR_OWNER_SERVER_RID = 0x2 |
| 124 | SECURITY_CREATOR_GROUP_SERVER_RID = 0x3 |
| 125 | SECURITY_LOGON_IDS_RID_COUNT = 0x3 |
| 126 | SECURITY_ANONYMOUS_LOGON_RID = 0x7 |
| 127 | SECURITY_PROXY_RID = 0x8 |
| 128 | SECURITY_ENTERPRISE_CONTROLLERS_RID = 0x9 |
| 129 | SECURITY_SERVER_LOGON_RID = SECURITY_ENTERPRISE_CONTROLLERS_RID |
| 130 | SECURITY_AUTHENTICATED_USER_RID = 0xb |
| 131 | SECURITY_RESTRICTED_CODE_RID = 0xc |
| 132 | SECURITY_NT_NON_UNIQUE_RID = 0x15 |
| 133 | ) |
| 134 | |
| 135 | // Predefined domain-relative RIDs for local groups. |
| 136 | // See https://msdn.microsoft.com/en-us/library/windows/desktop/aa379649(v=vs.85).aspx |
| 137 | const ( |
| 138 | DOMAIN_ALIAS_RID_ADMINS = 0x220 |
| 139 | DOMAIN_ALIAS_RID_USERS = 0x221 |
| 140 | DOMAIN_ALIAS_RID_GUESTS = 0x222 |
| 141 | DOMAIN_ALIAS_RID_POWER_USERS = 0x223 |
| 142 | DOMAIN_ALIAS_RID_ACCOUNT_OPS = 0x224 |
| 143 | DOMAIN_ALIAS_RID_SYSTEM_OPS = 0x225 |
| 144 | DOMAIN_ALIAS_RID_PRINT_OPS = 0x226 |
| 145 | DOMAIN_ALIAS_RID_BACKUP_OPS = 0x227 |
| 146 | DOMAIN_ALIAS_RID_REPLICATOR = 0x228 |
| 147 | DOMAIN_ALIAS_RID_RAS_SERVERS = 0x229 |
| 148 | DOMAIN_ALIAS_RID_PREW2KCOMPACCESS = 0x22a |
| 149 | DOMAIN_ALIAS_RID_REMOTE_DESKTOP_USERS = 0x22b |
| 150 | DOMAIN_ALIAS_RID_NETWORK_CONFIGURATION_OPS = 0x22c |
| 151 | DOMAIN_ALIAS_RID_INCOMING_FOREST_TRUST_BUILDERS = 0x22d |
| 152 | DOMAIN_ALIAS_RID_MONITORING_USERS = 0X22e |
| 153 | DOMAIN_ALIAS_RID_LOGGING_USERS = 0x22f |
| 154 | DOMAIN_ALIAS_RID_AUTHORIZATIONACCESS = 0x230 |
| 155 | DOMAIN_ALIAS_RID_TS_LICENSE_SERVERS = 0x231 |
| 156 | DOMAIN_ALIAS_RID_DCOM_USERS = 0x232 |
| 157 | DOMAIN_ALIAS_RID_IUSERS = 0x238 |
| 158 | DOMAIN_ALIAS_RID_CRYPTO_OPERATORS = 0x239 |
| 159 | DOMAIN_ALIAS_RID_CACHEABLE_PRINCIPALS_GROUP = 0x23b |
| 160 | DOMAIN_ALIAS_RID_NON_CACHEABLE_PRINCIPALS_GROUP = 0x23c |
| 161 | DOMAIN_ALIAS_RID_EVENT_LOG_READERS_GROUP = 0x23d |
| 162 | DOMAIN_ALIAS_RID_CERTSVC_DCOM_ACCESS_GROUP = 0x23e |
| 163 | ) |
| 164 | |
| 165 | //sys LookupAccountSid(systemName *uint16, sid *SID, name *uint16, nameLen *uint32, refdDomainName *uint16, refdDomainNameLen *uint32, use *uint32) (err error) = advapi32.LookupAccountSidW |
| 166 | //sys LookupAccountName(systemName *uint16, accountName *uint16, sid *SID, sidLen *uint32, refdDomainName *uint16, refdDomainNameLen *uint32, use *uint32) (err error) = advapi32.LookupAccountNameW |
| 167 | //sys ConvertSidToStringSid(sid *SID, stringSid **uint16) (err error) = advapi32.ConvertSidToStringSidW |
| 168 | //sys ConvertStringSidToSid(stringSid *uint16, sid **SID) (err error) = advapi32.ConvertStringSidToSidW |
| 169 | //sys GetLengthSid(sid *SID) (len uint32) = advapi32.GetLengthSid |
| 170 | //sys CopySid(destSidLen uint32, destSid *SID, srcSid *SID) (err error) = advapi32.CopySid |
| 171 | //sys AllocateAndInitializeSid(identAuth *SidIdentifierAuthority, subAuth byte, subAuth0 uint32, subAuth1 uint32, subAuth2 uint32, subAuth3 uint32, subAuth4 uint32, subAuth5 uint32, subAuth6 uint32, subAuth7 uint32, sid **SID) (err error) = advapi32.AllocateAndInitializeSid |
| 172 | //sys FreeSid(sid *SID) (err error) [failretval!=0] = advapi32.FreeSid |
| 173 | //sys EqualSid(sid1 *SID, sid2 *SID) (isEqual bool) = advapi32.EqualSid |
| 174 | |
| 175 | // The security identifier (SID) structure is a variable-length |
| 176 | // structure used to uniquely identify users or groups. |
| 177 | type SID struct{} |
| 178 | |
| 179 | // StringToSid converts a string-format security identifier |
| 180 | // sid into a valid, functional sid. |
| 181 | func StringToSid(s string) (*SID, error) { |
| 182 | var sid *SID |
| 183 | p, e := UTF16PtrFromString(s) |
| 184 | if e != nil { |
| 185 | return nil, e |
| 186 | } |
| 187 | e = ConvertStringSidToSid(p, &sid) |
| 188 | if e != nil { |
| 189 | return nil, e |
| 190 | } |
| 191 | defer LocalFree((Handle)(unsafe.Pointer(sid))) |
| 192 | return sid.Copy() |
| 193 | } |
| 194 | |
| 195 | // LookupSID retrieves a security identifier sid for the account |
| 196 | // and the name of the domain on which the account was found. |
| 197 | // System specify target computer to search. |
| 198 | func LookupSID(system, account string) (sid *SID, domain string, accType uint32, err error) { |
| 199 | if len(account) == 0 { |
| 200 | return nil, "", 0, syscall.EINVAL |
| 201 | } |
| 202 | acc, e := UTF16PtrFromString(account) |
| 203 | if e != nil { |
| 204 | return nil, "", 0, e |
| 205 | } |
| 206 | var sys *uint16 |
| 207 | if len(system) > 0 { |
| 208 | sys, e = UTF16PtrFromString(system) |
| 209 | if e != nil { |
| 210 | return nil, "", 0, e |
| 211 | } |
| 212 | } |
| 213 | n := uint32(50) |
| 214 | dn := uint32(50) |
| 215 | for { |
| 216 | b := make([]byte, n) |
| 217 | db := make([]uint16, dn) |
| 218 | sid = (*SID)(unsafe.Pointer(&b[0])) |
| 219 | e = LookupAccountName(sys, acc, sid, &n, &db[0], &dn, &accType) |
| 220 | if e == nil { |
| 221 | return sid, UTF16ToString(db), accType, nil |
| 222 | } |
| 223 | if e != ERROR_INSUFFICIENT_BUFFER { |
| 224 | return nil, "", 0, e |
| 225 | } |
| 226 | if n <= uint32(len(b)) { |
| 227 | return nil, "", 0, e |
| 228 | } |
| 229 | } |
| 230 | } |
| 231 | |
| 232 | // String converts sid to a string format |
| 233 | // suitable for display, storage, or transmission. |
| 234 | func (sid *SID) String() (string, error) { |
| 235 | var s *uint16 |
| 236 | e := ConvertSidToStringSid(sid, &s) |
| 237 | if e != nil { |
| 238 | return "", e |
| 239 | } |
| 240 | defer LocalFree((Handle)(unsafe.Pointer(s))) |
| 241 | return UTF16ToString((*[256]uint16)(unsafe.Pointer(s))[:]), nil |
| 242 | } |
| 243 | |
| 244 | // Len returns the length, in bytes, of a valid security identifier sid. |
| 245 | func (sid *SID) Len() int { |
| 246 | return int(GetLengthSid(sid)) |
| 247 | } |
| 248 | |
| 249 | // Copy creates a duplicate of security identifier sid. |
| 250 | func (sid *SID) Copy() (*SID, error) { |
| 251 | b := make([]byte, sid.Len()) |
| 252 | sid2 := (*SID)(unsafe.Pointer(&b[0])) |
| 253 | e := CopySid(uint32(len(b)), sid2, sid) |
| 254 | if e != nil { |
| 255 | return nil, e |
| 256 | } |
| 257 | return sid2, nil |
| 258 | } |
| 259 | |
| 260 | // LookupAccount retrieves the name of the account for this sid |
| 261 | // and the name of the first domain on which this sid is found. |
| 262 | // System specify target computer to search for. |
| 263 | func (sid *SID) LookupAccount(system string) (account, domain string, accType uint32, err error) { |
| 264 | var sys *uint16 |
| 265 | if len(system) > 0 { |
| 266 | sys, err = UTF16PtrFromString(system) |
| 267 | if err != nil { |
| 268 | return "", "", 0, err |
| 269 | } |
| 270 | } |
| 271 | n := uint32(50) |
| 272 | dn := uint32(50) |
| 273 | for { |
| 274 | b := make([]uint16, n) |
| 275 | db := make([]uint16, dn) |
| 276 | e := LookupAccountSid(sys, sid, &b[0], &n, &db[0], &dn, &accType) |
| 277 | if e == nil { |
| 278 | return UTF16ToString(b), UTF16ToString(db), accType, nil |
| 279 | } |
| 280 | if e != ERROR_INSUFFICIENT_BUFFER { |
| 281 | return "", "", 0, e |
| 282 | } |
| 283 | if n <= uint32(len(b)) { |
| 284 | return "", "", 0, e |
| 285 | } |
| 286 | } |
| 287 | } |
| 288 | |
| 289 | const ( |
| 290 | // do not reorder |
| 291 | TOKEN_ASSIGN_PRIMARY = 1 << iota |
| 292 | TOKEN_DUPLICATE |
| 293 | TOKEN_IMPERSONATE |
| 294 | TOKEN_QUERY |
| 295 | TOKEN_QUERY_SOURCE |
| 296 | TOKEN_ADJUST_PRIVILEGES |
| 297 | TOKEN_ADJUST_GROUPS |
| 298 | TOKEN_ADJUST_DEFAULT |
| 299 | TOKEN_ADJUST_SESSIONID |
| 300 | |
| 301 | TOKEN_ALL_ACCESS = STANDARD_RIGHTS_REQUIRED | |
| 302 | TOKEN_ASSIGN_PRIMARY | |
| 303 | TOKEN_DUPLICATE | |
| 304 | TOKEN_IMPERSONATE | |
| 305 | TOKEN_QUERY | |
| 306 | TOKEN_QUERY_SOURCE | |
| 307 | TOKEN_ADJUST_PRIVILEGES | |
| 308 | TOKEN_ADJUST_GROUPS | |
| 309 | TOKEN_ADJUST_DEFAULT | |
| 310 | TOKEN_ADJUST_SESSIONID |
| 311 | TOKEN_READ = STANDARD_RIGHTS_READ | TOKEN_QUERY |
| 312 | TOKEN_WRITE = STANDARD_RIGHTS_WRITE | |
| 313 | TOKEN_ADJUST_PRIVILEGES | |
| 314 | TOKEN_ADJUST_GROUPS | |
| 315 | TOKEN_ADJUST_DEFAULT |
| 316 | TOKEN_EXECUTE = STANDARD_RIGHTS_EXECUTE |
| 317 | ) |
| 318 | |
| 319 | const ( |
| 320 | // do not reorder |
| 321 | TokenUser = 1 + iota |
| 322 | TokenGroups |
| 323 | TokenPrivileges |
| 324 | TokenOwner |
| 325 | TokenPrimaryGroup |
| 326 | TokenDefaultDacl |
| 327 | TokenSource |
| 328 | TokenType |
| 329 | TokenImpersonationLevel |
| 330 | TokenStatistics |
| 331 | TokenRestrictedSids |
| 332 | TokenSessionId |
| 333 | TokenGroupsAndPrivileges |
| 334 | TokenSessionReference |
| 335 | TokenSandBoxInert |
| 336 | TokenAuditPolicy |
| 337 | TokenOrigin |
| 338 | TokenElevationType |
| 339 | TokenLinkedToken |
| 340 | TokenElevation |
| 341 | TokenHasRestrictions |
| 342 | TokenAccessInformation |
| 343 | TokenVirtualizationAllowed |
| 344 | TokenVirtualizationEnabled |
| 345 | TokenIntegrityLevel |
| 346 | TokenUIAccess |
| 347 | TokenMandatoryPolicy |
| 348 | TokenLogonSid |
| 349 | MaxTokenInfoClass |
| 350 | ) |
| 351 | |
| 352 | type SIDAndAttributes struct { |
| 353 | Sid *SID |
| 354 | Attributes uint32 |
| 355 | } |
| 356 | |
| 357 | type Tokenuser struct { |
| 358 | User SIDAndAttributes |
| 359 | } |
| 360 | |
| 361 | type Tokenprimarygroup struct { |
| 362 | PrimaryGroup *SID |
| 363 | } |
| 364 | |
| 365 | type Tokengroups struct { |
| 366 | GroupCount uint32 |
| 367 | Groups [1]SIDAndAttributes |
| 368 | } |
| 369 | |
| 370 | // Authorization Functions |
| 371 | //sys checkTokenMembership(tokenHandle Token, sidToCheck *SID, isMember *int32) (err error) = advapi32.CheckTokenMembership |
| 372 | //sys OpenProcessToken(h Handle, access uint32, token *Token) (err error) = advapi32.OpenProcessToken |
| 373 | //sys GetTokenInformation(t Token, infoClass uint32, info *byte, infoLen uint32, returnedLen *uint32) (err error) = advapi32.GetTokenInformation |
| 374 | //sys GetUserProfileDirectory(t Token, dir *uint16, dirLen *uint32) (err error) = userenv.GetUserProfileDirectoryW |
| 375 | |
| 376 | // An access token contains the security information for a logon session. |
| 377 | // The system creates an access token when a user logs on, and every |
| 378 | // process executed on behalf of the user has a copy of the token. |
| 379 | // The token identifies the user, the user's groups, and the user's |
| 380 | // privileges. The system uses the token to control access to securable |
| 381 | // objects and to control the ability of the user to perform various |
| 382 | // system-related operations on the local computer. |
| 383 | type Token Handle |
| 384 | |
| 385 | // OpenCurrentProcessToken opens the access token |
| 386 | // associated with current process. |
| 387 | func OpenCurrentProcessToken() (Token, error) { |
| 388 | p, e := GetCurrentProcess() |
| 389 | if e != nil { |
| 390 | return 0, e |
| 391 | } |
| 392 | var t Token |
| 393 | e = OpenProcessToken(p, TOKEN_QUERY, &t) |
| 394 | if e != nil { |
| 395 | return 0, e |
| 396 | } |
| 397 | return t, nil |
| 398 | } |
| 399 | |
| 400 | // Close releases access to access token. |
| 401 | func (t Token) Close() error { |
| 402 | return CloseHandle(Handle(t)) |
| 403 | } |
| 404 | |
| 405 | // getInfo retrieves a specified type of information about an access token. |
| 406 | func (t Token) getInfo(class uint32, initSize int) (unsafe.Pointer, error) { |
| 407 | n := uint32(initSize) |
| 408 | for { |
| 409 | b := make([]byte, n) |
| 410 | e := GetTokenInformation(t, class, &b[0], uint32(len(b)), &n) |
| 411 | if e == nil { |
| 412 | return unsafe.Pointer(&b[0]), nil |
| 413 | } |
| 414 | if e != ERROR_INSUFFICIENT_BUFFER { |
| 415 | return nil, e |
| 416 | } |
| 417 | if n <= uint32(len(b)) { |
| 418 | return nil, e |
| 419 | } |
| 420 | } |
| 421 | } |
| 422 | |
| 423 | // GetTokenUser retrieves access token t user account information. |
| 424 | func (t Token) GetTokenUser() (*Tokenuser, error) { |
| 425 | i, e := t.getInfo(TokenUser, 50) |
| 426 | if e != nil { |
| 427 | return nil, e |
| 428 | } |
| 429 | return (*Tokenuser)(i), nil |
| 430 | } |
| 431 | |
| 432 | // GetTokenGroups retrieves group accounts associated with access token t. |
| 433 | func (t Token) GetTokenGroups() (*Tokengroups, error) { |
| 434 | i, e := t.getInfo(TokenGroups, 50) |
| 435 | if e != nil { |
| 436 | return nil, e |
| 437 | } |
| 438 | return (*Tokengroups)(i), nil |
| 439 | } |
| 440 | |
| 441 | // GetTokenPrimaryGroup retrieves access token t primary group information. |
| 442 | // A pointer to a SID structure representing a group that will become |
| 443 | // the primary group of any objects created by a process using this access token. |
| 444 | func (t Token) GetTokenPrimaryGroup() (*Tokenprimarygroup, error) { |
| 445 | i, e := t.getInfo(TokenPrimaryGroup, 50) |
| 446 | if e != nil { |
| 447 | return nil, e |
| 448 | } |
| 449 | return (*Tokenprimarygroup)(i), nil |
| 450 | } |
| 451 | |
| 452 | // GetUserProfileDirectory retrieves path to the |
| 453 | // root directory of the access token t user's profile. |
| 454 | func (t Token) GetUserProfileDirectory() (string, error) { |
| 455 | n := uint32(100) |
| 456 | for { |
| 457 | b := make([]uint16, n) |
| 458 | e := GetUserProfileDirectory(t, &b[0], &n) |
| 459 | if e == nil { |
| 460 | return UTF16ToString(b), nil |
| 461 | } |
| 462 | if e != ERROR_INSUFFICIENT_BUFFER { |
| 463 | return "", e |
| 464 | } |
| 465 | if n <= uint32(len(b)) { |
| 466 | return "", e |
| 467 | } |
| 468 | } |
| 469 | } |
| 470 | |
| 471 | // IsMember reports whether the access token t is a member of the provided SID. |
| 472 | func (t Token) IsMember(sid *SID) (bool, error) { |
| 473 | var b int32 |
| 474 | if e := checkTokenMembership(t, sid, &b); e != nil { |
| 475 | return false, e |
| 476 | } |
| 477 | return b != 0, nil |
| 478 | } |