Eric W. Biederman wrote:
>I think what we really want are stacked security modules.
>
>I have not yet fully digested all of the requirements for multiple servers
>on the same machine but increasingly the security aspects look
>like a job for a security module.
>
>Enforcing policies like container A cannot send signals to processes
>in container B or something like that.
>
>
We could even end up making security modules to implement standard unix
security. ie, which processes can send any signal to other processes.
Why hardcode the (!sender.user_id || (sender.user_id == target.user_id)
) rule at all? That rule should be the default rule in a security module
chain.
I just think that doing it this way is the wrong way around, but I guess
I'm hardly qualified to speak on this. Aren't security modules supposed
to be for custom security policy, not standard system semantics ?
Sam.
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