Search IT Connect:. Last reviewed May 26, See a problem on this page? Let us know. NTFS is efficient in its storage of security descriptors, storing only a single copy of each security descriptor, even if it is used by many different files. These file systems, however, do not represent all possible implementations of Windows security for file systems. The security identifier SID of the owner of the object. An object's owner always has the ability to reset the security on the object.
This is a good way to ensure that, for example, all access to an object can be removed. Because even if owners remove their ability to perform all operations, this inherent right allows them to restore their security rights on the object.
An optional security identifier SID of the default group of the object. The concept of group ownership is one that is not required in Windows, but is useful for some applications. Generic All access. SY the System group also gets Generic All access. Incidentally, you can also use this same AddReg section to specify a default Device Type for your device.
And, believe it or not, this is all documented in the DDK. Does this Solve the Satellite Problem? This device protection scheme solves the satellite problem. These can include those in Figure 2. More Control. Or, even more likely, you want more flexibility. At some point, somebody is likely to want to change something. Probably the best way to accomplish this aim, and to create a much more refined and flexible security implementation, is to:.
The driver probably wants to be careful about from whom it accepts such SD information. For example, it might want to check to ensure that the caller has a specific privilege. The code might look something like that shown in Figure 4. RtlCopyMemory mySd,. This browser is no longer supported. Download Microsoft Edge More info. Contents Exit focus mode. Please rate your experience Yes No. Any additional feedback?
0コメント