GetKernelObjectSecurity

The GetKernelObjectSecurity function retrieves a copy of the security descriptor protecting a kernel object.

BOOL GetKernelObjectSecurity(

HANDLE Handle,	// handle of object to query
SECURITY_INFORMATION RequestedInformation,	// requested information
PSECURITY_DESCRIPTOR pSecurityDescriptor,	// address of security descriptor
DWORD nLength,	// size of buffer for security descriptor
LPDWORD lpnLengthNeeded	// address of required size of buffer
);

Parameters

Handle

Identifies a kernel object.

RequestedInformation

Specifies a SECURITY_INFORMATION structure that identifies the security information being requested.

pSecurityDescriptor

Points to a buffer the function fills with a copy of the security descriptor of the specified object. The calling process must have the right to view the specified aspects of the object's security status. The SECURITY_DESCRIPTOR structure is returned in self-relative format.

nLength

Specifies the size, in bytes, of the buffer pointed to by the pSecurityDescriptor parameter.

lpnLengthNeeded

Points to a variable the function sets to zero if the descriptor is copied successfully. If the buffer is too small for the security descriptor, this variable receives the number of bytes required. If this variable's value is greater than the value of the nLength parameter when the function returns, none of the security descriptor is copied to the buffer.

Return Values

If the function succeeds, the return value is nonzero.

If the function fails, the return value is zero. To get extended error information, call GetLastError.

Remarks

To read the kernel object's security descriptor, the calling process must be either granted READ_CONTROL access or be the object's owner. In addition, the calling process must have the SE_SECURITY_NAME privilege to read the system access-control list.

See Also

GetFileSecurity, GetPrivateObjectSecurity, GetUserObjectSecurity, SECURITY_DESCRIPTOR, SECURITY_INFORMATION, SetKernelObjectSecurity

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