Re: Possible system call interface for LSM

From: richard offer (offerat_private)
Date: Thu Aug 09 2001 - 15:47:06 PDT

  • Next message: richard offer: "Re: Possible system call interface for LSM"

    * frm dawat_private "08/09/01 17:44:16 +0000" | sed '1,$s/^/*
    /'
    *
    * Rather than having vendor identifiers, it might make more sense to have
    * module identifiers.  (What if the Immunix folks want to put out both a
    * SubDomain LSM and a RaceGuard LSM?  We shouldn't put barriers in the way
    * of this.)
    
    modules == policy.
    
    Having one id per policy is going to mean that us (LSM) and then Linus is
    going to be forced to take frequent patches to a header file just to
    support a global name name space. This is a real problem with how MAJOR and
    MINOR numbers were handled in pre-2.4.
    
    I'd like something that :
    
        1) doesn't mean I have to annoy Linus every time I write a new policy.
    
        2) still allows for propriatory policies, not that I want to use them,
    but there should be nothing technical from stopping that happen.
    
        3) allows a "vendor" to grab a single ID and re-use it for multiple
    policies, on the understanding that they are then responsible for managing
    conflicts. This is what I plan on doing, since that puts the onus on me to
    make sure CAPP and LSPP work well together from an application pov.
    
        4) Allows a "vendor" to "hide" their product plans by not leaking ID
    names out until the "product" is released.
    
        5) Allows people to get their name in the linux header file :-)
    
    * 
    * -- David
    * 
    
    richard.
    
    -----------------------------------------------------------------------
    Richard Offer                     Technical Lead, Trust Technology, SGI
    "Specialization is for insects"
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