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authorPaul Moore <paul.moore@hp.com>2007-07-30 16:33:26 -0400
committerJames Morris <jmorris@namei.org>2007-08-02 11:52:21 -0400
commit9534f71ca33e5a9de26dfd43c76af86e005005dd (patch)
tree344444735f541f79ed98cc38fa9040bc018ec66e /security
parent1ed4395035a6791ebbbf618429a58ab9c207cc83 (diff)
downloadlinux-9534f71ca33e5a9de26dfd43c76af86e005005dd.tar.gz
SELinux: restore proper NetLabel caching behavior
A small fix to the SELinux/NetLabel glue code to ensure that the NetLabel
cache is utilized when possible.  This was broken when the SELinux/NetLabel
glue code was reorganized in the last kernel release.

Signed-off-by: Paul Moore <paul.moore@hp.com>
Acked-by:  Stephen Smalley <sds@tycho.nsa.gov>
Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'security')
-rw-r--r--security/selinux/netlabel.c16
1 files changed, 12 insertions, 4 deletions
diff --git a/security/selinux/netlabel.c b/security/selinux/netlabel.c
index 051b14c88e2d..d243ddc723a5 100644
--- a/security/selinux/netlabel.c
+++ b/security/selinux/netlabel.c
@@ -162,9 +162,13 @@ int selinux_netlbl_skbuff_getsid(struct sk_buff *skb, u32 base_sid, u32 *sid)
 
 	netlbl_secattr_init(&secattr);
 	rc = netlbl_skbuff_getattr(skb, &secattr);
-	if (rc == 0 && secattr.flags != NETLBL_SECATTR_NONE)
+	if (rc == 0 && secattr.flags != NETLBL_SECATTR_NONE) {
 		rc = security_netlbl_secattr_to_sid(&secattr, base_sid, sid);
-	else
+		if (rc == 0 &&
+		    (secattr.flags & NETLBL_SECATTR_CACHEABLE) &&
+		    (secattr.flags & NETLBL_SECATTR_CACHE))
+			netlbl_cache_add(skb, &secattr);
+	} else
 		*sid = SECSID_NULL;
 	netlbl_secattr_destroy(&secattr);
 
@@ -307,11 +311,15 @@ int selinux_netlbl_sock_rcv_skb(struct sk_security_struct *sksec,
 
 	netlbl_secattr_init(&secattr);
 	rc = netlbl_skbuff_getattr(skb, &secattr);
-	if (rc == 0 && secattr.flags != NETLBL_SECATTR_NONE)
+	if (rc == 0 && secattr.flags != NETLBL_SECATTR_NONE) {
 		rc = security_netlbl_secattr_to_sid(&secattr,
 						    SECINITSID_NETMSG,
 						    &nlbl_sid);
-	else
+		if (rc == 0 &&
+		    (secattr.flags & NETLBL_SECATTR_CACHEABLE) &&
+		    (secattr.flags & NETLBL_SECATTR_CACHE))
+			netlbl_cache_add(skb, &secattr);
+	} else
 		nlbl_sid = SECINITSID_UNLABELED;
 	netlbl_secattr_destroy(&secattr);
 	if (rc != 0)