RE: [Full-Disclosure] EFC Released

["Rainer Gerhards" <rgerhards@xxxxxxxxxxxxxx>]

There has already been a lot of discussion on this concept on this list
(see archives). A major shortcoming of this concept is that some program
code may only very seldomly be excuted (error/exception handlers). As
such, a pogramm may be killed just because it is gracefully handling an
exceptional situation...

Rainer

> -----Original Message-----
> From: Timothy Demulder [mailto:timothy.demulder@xxxxxxxxxx] 
> Sent: Thursday, March 04, 2004 9:45 AM
> To: full-disclosure@xxxxxxxxxxxxxxxx
> Subject: Re: [Full-Disclosure] EFC Released
> 
> On Thu, 04 Mar 2004 11:17:20 +0530
> Balwinder Singh <balwinder@xxxxxxx> wrote:
> 
> > Dear All,
> > 
> > Execution Flow Control (EFC) is available for download at
> > http://sourceforge.net/projects/efc/
> > 
> > What is EFC?
> > 
> > EFC monitors the execution of a program by observing system 
> calls made
> > by the program. EFC generates a database for each program 
> describing 
> > its behavioral model. The moment request for execution of a 
> program is
> > made, kernel also loads program's behavioral model into the memory.
> > Each request by a program is compared with model data base, 
> if request
> > agrees with model it is permitted else program is killed. 
> > 
> > EFC is a kernel module, and woks on Linux only.
> > 
> > Sincerely
> > 
> > Bal
> 
> Seems very interesting, but how does it affect 
> performance/stability of the system/kernel?
> 
> Greets,
> 
> Timothy
> ----
> 
> Absolutely nothing should be concluded from these figures except that
> no conclusion can be drawn from them.
>         -- Joseph L. Brothers, Linux/PowerPC Project)
> 

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