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windows: add Token.IsRestricted helper

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This adds an additional helper method to Token to determine whether or
not it's a restricted one, by using:
https://docs.microsoft.com/en-us/windows/win32/api/securitybaseapi/nf-securitybaseapi-istokenrestricted

Change-Id: I1f2d051450524c22665c4bb99f5948b375b5e199
Reviewed-on: https://go-review.googlesource.com/c/sys/+/272107
Run-TryBot: Jason A. Donenfeld <Jason@zx2c4.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
Trust: Alex Brainman <alex.brainman@gmail.com>
Trust: Jason A. Donenfeld <Jason@zx2c4.com>
This commit is contained in:
Jason A. Donenfeld
2020-11-26 22:47:55 +00:00
parent a4b67b81d3
commit f88b827b86
2 changed files with 21 additions and 0 deletions
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windows/zsyscall_windows.go
+10
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@@ -95,6 +95,7 @@ var (
procImpersonateSelf = modadvapi32.NewProc("ImpersonateSelf")
procInitializeSecurityDescriptor = modadvapi32.NewProc("InitializeSecurityDescriptor")
procInitiateSystemShutdownExW = modadvapi32.NewProc("InitiateSystemShutdownExW")
procIsTokenRestricted = modadvapi32.NewProc("IsTokenRestricted")
procIsValidSecurityDescriptor = modadvapi32.NewProc("IsValidSecurityDescriptor")
procIsValidSid = modadvapi32.NewProc("IsValidSid")
procIsWellKnownSid = modadvapi32.NewProc("IsWellKnownSid")
@@ -756,6 +757,15 @@ func InitiateSystemShutdownEx(machineName *uint16, message *uint16, timeout uint
return
}
func isTokenRestricted(tokenHandle Token) (ret bool, err error) {
r0, _, e1 := syscall.Syscall(procIsTokenRestricted.Addr(), 1, uintptr(tokenHandle), 0, 0)
ret = r0 != 0
if !ret {
err = errnoErr(e1)
}
return
}
func isValidSecurityDescriptor(sd *SECURITY_DESCRIPTOR) (isValid bool) {
r0, _, _ := syscall.Syscall(procIsValidSecurityDescriptor.Addr(), 1, uintptr(unsafe.Pointer(sd)), 0, 0)
isValid = r0 != 0