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Date: Mon, 16 Sep 2002 10:02:08 -0700 (PDT)
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From: Robert Watson <rwatson@FreeBSD.org>
Subject: PERFORCE change 17578 for review
To: Perforce Change Reviews <perforce@freebsd.org>
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http://people.freebsd.org/~peter/p4db/chv.cgi?CH=17578

Change 17578 by rwatson@rwatson_tislabs on 2002/09/16 10:02:02

	Add an 'enforce_vm' flag that disables mmap protection stuff.  Enabled
	by default (same as existing code).

Affected files ...

.. //depot/projects/trustedbsd/mac/sys/kern/kern_mac.c#262 edit

Differences ...

==== //depot/projects/trustedbsd/mac/sys/kern/kern_mac.c#262 (text+ko) ====

@@ -146,6 +146,10 @@
 SYSCTL_INT(_security_mac, OID_AUTO, enforce_pipe, CTLFLAG_RW,
     &mac_enforce_pipe, 0, "Enforce MAC policy on pipe operations");
 
+static int	mac_enforce_vm = 1;
+SYSCTL_INT(_security_mac, OID_AUTO, enforce_vm, CTLFLAG_RW,
+    &mac_enforce_vm, 0, "Enforce MAC policy on vm operations");
+
 static int	mac_label_size = sizeof(struct mac);
 SYSCTL_INT(_security_mac, OID_AUTO, label_size, CTLFLAG_RD,
     &mac_label_size, 0, "Pre-compiled MAC label size");
@@ -1825,6 +1829,9 @@
 {
 	vm_prot_t result = VM_PROT_ALL;
 
+	if (!mac_enforce_vm)
+		return (result);
+
 	/*
 	 * This should be some sort of MAC_BITWISE, maybe :)
 	 */

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