User-level objects

li94575 li94575 at
Sat Dec 6 15:24:20 CET 2014

As I know, we can set  access permissions for the kernel objects, and access to user-level objects is  through IPC_Gate.
So, can I  set access permissions for user-level objects through the IPC_Gate?
Another question is that If  multiple clients need to access a particular service object, do they use different IPC_Gate or the same?

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