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From: Robert Watson <rwatson@FreeBSD.org>
Subject: PERFORCE change 12285 for review
To: Perforce Change Reviews <perforce@freebsd.org>
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http://people.freebsd.org/~peter/p4db/chv.cgi?CH=12285

Change 12285 by rwatson@rwatson_curry on 2002/06/01 20:08:16

	Implement socket receiving mbuf security check.

Affected files ...

... //depot/projects/trustedbsd/mac/sys/security/mac_biba/mac_biba.c#45 edit

Differences ...

==== //depot/projects/trustedbsd/mac/sys/security/mac_biba/mac_biba.c#45 (text+ko) ====

@@ -1621,8 +1621,15 @@
 mac_biba_socket_check_receive_mbuf(struct socket *so,
     struct label *socketlabel, struct mbuf *m, struct label *mbuflabel)
 {
+	struct mac_biba *p, *s;
 
-	return (0);
+	if (!mac_biba_enabled)
+		return (0);
+
+	p = SLOT(mbuflabel);
+	s = SLOT(socketlabel);
+	
+	return (mac_biba_equal_single(p, s) ? 0 : EACCES);
 }
 
 static struct mac_policy_op_entry mac_biba_ops[] =

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