From owner-freebsd-hackers Mon Feb 3 18:09:56 1997 Return-Path: Received: (from root@localhost) by freefall.freebsd.org (8.8.5/8.8.5) id SAA08338 for hackers-outgoing; Mon, 3 Feb 1997 18:09:56 -0800 (PST) Received: from sovcom.kiae.su (sovcom.kiae.su [193.125.152.1]) by freefall.freebsd.org (8.8.5/8.8.5) with SMTP id SAA08325 for ; Mon, 3 Feb 1997 18:09:51 -0800 (PST) Received: by sovcom.kiae.su id AA22754 (5.65.kiae-1 for hackers@freebsd.org); Tue, 4 Feb 1997 04:48:40 +0300 Received: by sovcom.KIAE.su (UUMAIL/2.0); Tue, 4 Feb 97 04:48:40 +0300 Received: from gate.phantom.ru by router.phantom.ru (UUPC/extended 1.12o) with UUCP for hackers@freebsd.org; Tue, 04 Feb 1997 03:52:34 +0300 Received: by gate.phantom.ru (FIDO2UU 2.11c [OS/2,C++ Set]) with FTN; Tue, 4 Feb 1997 03:52:34 +0300 To: hackers@freebsd.org Message-Id: <32F6F8D2@gate.phantom.ru> Date: Mon, 3 Feb 1997 21:36:12 +0300 From: Ilmar Habibulin Reply-To: Ilmar Habibulin Subject: Need some help or advice Sender: owner-hackers@freebsd.org X-Loop: FreeBSD.org Precedence: bulk Dear Sirs. I have a hobby. Simply it is the computer security and related topics. 2 months ago i've got a Walnut Creek FreeBSD 2.1.0 CDROM distribution willing to design and implement MAC(mandatory access control) according to Bell-LaPadula model or something like that. I choose FreeBSD because of free avaliable source. But the problem is, that breaking through megabytes of kernel routines i've got a terriblre headache. :( I don't know where to look at. What kernel structures can i modify and what i should recompile next to get it work. ( After my "modifications" the kernel stops with bus error ;-)) Where can i find information of kernel internals such as processes and user credits, IPC, VOP_ stuff, v-nodes and its relations with i-nodes, the most complete info on how does this thing works inside. I'll want to buy a book "4.4BSD design and implementation". Is it enough? I read manuals and faqs. It said that You may be interested in such stuff. I have no much time, but i want to try. thanks for advice. Certainly Yours, Ilmar. Moscow, Russia. PS. Sorry for bad English if any mistakes have been made. I have no English-speaking practice for a long time, only English-reading. ;-) AKA ~The~Blue~Glasses~ ö8-) --- ... If I only had a brain ... * Origin: Genuine INTEL - ligent Gentelman (2:5020/691.777)