The MakeAbsoluteSD function creates a security descriptor in absolute format by using a security descriptor in self-relative format as a template.
BOOL MakeAbsoluteSD(
PSECURITY_DESCRIPTOR pSelfRelativeSecurityDescriptor, |
// address self-relative SD |
PSECURITY_DESCRIPTOR pAbsoluteSecurityDescriptor, |
// address of absolute SD |
LPDWORD lpdwAbsoluteSecurityDescriptorSize, |
// address of size of absolute SD |
PACL pDacl, |
// address of discretionary ACL |
LPDWORD lpdwDaclSize, |
// address of size of discretionary ACL |
PACL pSacl, |
// address of system ACL |
LPDWORD lpdwSaclSize, |
// address of size of system ACL |
PSID pOwner, |
// address of owner SID |
LPDWORD lpdwOwnerSize, |
// address of size of owner SID |
PSID pPrimaryGroup, |
// address of primary-group SID |
LPDWORD lpdwPrimaryGroupSize |
// address of size of group SID |
); |
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.
A security descriptor in absolute format contains pointers to the information it contains, rather than the information itself. A security descriptor in self-relative format contains the information in a contiguous block of memory. In a self-relative security descriptor, a SECURITY_DESCRIPTOR structure always starts the information, but the security descriptor’s other components can follow the structure in any order. Instead of using memory addresses, the components of the self-relative security descriptor are identified by offsets from the beginning of the security descriptor. This format is useful when an security descriptor must be stored on a floppy disk or transmitted by means of a communications protocol.
A server that copies secured objects to various media can use the MakeAbsoluteSD function to create an absolute security descriptor from a self-relative security descriptor and the MakeSelfRelativeSD function to create a self-relative security descriptor from an absolute security descriptor.
MakeSelfRelativeSD, SECURITY_DESCRIPTOR
file: /Techref/os/win/api/win32/func/src/f56_11.htm, 8KB, , updated: 2001/6/24 00:36, local time: 2024/9/2 17:18,
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