From owner-cvs-all@FreeBSD.ORG Tue Nov 11 19:14:33 2003 Return-Path: Delivered-To: cvs-all@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 4ED5816A4CE; Tue, 11 Nov 2003 19:14:33 -0800 (PST) Received: from repoman.freebsd.org (repoman.freebsd.org [216.136.204.115]) by mx1.FreeBSD.org (Postfix) with ESMTP id 9D8CC43FE9; Tue, 11 Nov 2003 19:14:32 -0800 (PST) (envelope-from rwatson@FreeBSD.org) Received: from repoman.freebsd.org (localhost [127.0.0.1]) by repoman.freebsd.org (8.12.9/8.12.9) with ESMTP id hAC3EWXJ030529; Tue, 11 Nov 2003 19:14:32 -0800 (PST) (envelope-from rwatson@repoman.freebsd.org) Received: (from rwatson@localhost) by repoman.freebsd.org (8.12.9/8.12.9/Submit) id hAC3EWf8030528; Tue, 11 Nov 2003 19:14:32 -0800 (PST) (envelope-from rwatson) Message-Id: <200311120314.hAC3EWf8030528@repoman.freebsd.org> From: Robert Watson Date: Tue, 11 Nov 2003 19:14:32 -0800 (PST) To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org X-FreeBSD-CVS-Branch: HEAD Subject: cvs commit: src/sys/conf files src/sys/fs/devfs devfs.h src/sys/kern kern_exec.c kern_mac.c src/sys/net bpfdesc.h if_var.h src/sys/netinet ip_var.h src/sys/security/mac mac_internal.h mac_label.c mac_net.c mac_pipe.c mac_process.c mac_system.c ... X-BeenThere: cvs-all@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: CVS commit messages for the entire tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 12 Nov 2003 03:14:33 -0000 rwatson 2003/11/11 19:14:32 PST FreeBSD src repository Modified files: sys/conf files sys/fs/devfs devfs.h sys/kern kern_exec.c kern_mac.c sys/net bpfdesc.h if_var.h sys/netinet ip_var.h sys/security/mac mac_internal.h mac_net.c mac_pipe.c mac_process.c mac_system.c mac_vfs.c sys/security/mac_biba mac_biba.c sys/security/mac_lomac mac_lomac.c sys/security/mac_mls mac_mls.c sys/security/mac_partition mac_partition.c sys/security/mac_test mac_test.c sys/sys mac.h mount.h pipe.h proc.h socketvar.h ucred.h vnode.h Added files: sys/security/mac mac_label.c Log: Modify the MAC Framework so that instead of embedding a (struct label) in various kernel objects to represent security data, we embed a (struct label *) pointer, which now references labels allocated using a UMA zone (mac_label.c). This allows the size and shape of struct label to be varied without changing the size and shape of these kernel objects, which become part of the frozen ABI with 5-STABLE. This opens the door for boot-time selection of the number of label slots, and hence changes to the bound on the number of simultaneous labeled policies at boot-time instead of compile-time. This also makes it easier to embed label references in new objects as required for locking/caching with fine-grained network stack locking, such as inpcb structures. This change also moves us further in the direction of hiding the structure of kernel objects from MAC policy modules, not to mention dramatically reducing the number of '&' symbols appearing in both the MAC Framework and MAC policy modules, and improving readability. While this results in minimal performance change with MAC enabled, it will observably shrink the size of a number of critical kernel data structures for the !MAC case, and should have a small (but measurable) performance benefit (i.e., struct vnode, struct socket) do to memory conservation and reduced cost of zeroing memory. NOTE: Users of MAC must recompile their kernel and all MAC modules as a result of this change. Because this is an API change, third party MAC modules will also need to be updated to make less use of the '&' symbol. Suggestions from: bmilekic Obtained from: TrustedBSD Project Sponsored by: DARPA, Network Associates Laboratories Revision Changes Path 1.849 +1 -0 src/sys/conf/files 1.18 +1 -1 src/sys/fs/devfs/devfs.h 1.232 +11 -13 src/sys/kern/kern_exec.c 1.105 +57 -62 src/sys/kern/kern_mac.c 1.24 +1 -2 src/sys/net/bpfdesc.h 1.62 +1 -2 src/sys/net/if_var.h 1.79 +1 -5 src/sys/netinet/ip_var.h 1.106 +9 -5 src/sys/security/mac/mac_internal.h 1.1 +97 -0 src/sys/security/mac/mac_label.c (new) 1.105 +155 -104 src/sys/security/mac/mac_net.c 1.104 +11 -14 src/sys/security/mac/mac_pipe.c 1.104 +43 -21 src/sys/security/mac/mac_process.c 1.102 +4 -4 src/sys/security/mac/mac_system.c 1.104 +139 -83 src/sys/security/mac/mac_vfs.c 1.66 +68 -68 src/sys/security/mac_biba/mac_biba.c 1.21 +56 -56 src/sys/security/mac_lomac/mac_lomac.c 1.53 +61 -61 src/sys/security/mac_mls/mac_mls.c 1.8 +9 -9 src/sys/security/mac_partition/mac_partition.c 1.32 +91 -91 src/sys/security/mac_test/mac_test.c 1.47 +7 -4 src/sys/sys/mac.h 1.151 +2 -3 src/sys/sys/mount.h 1.25 +0 -1 src/sys/sys/pipe.h 1.358 +1 -2 src/sys/sys/proc.h 1.107 +2 -3 src/sys/sys/socketvar.h 1.47 +1 -2 src/sys/sys/ucred.h 1.230 +1 -2 src/sys/sys/vnode.h