From: Venkat Yekkirala <vyekkirala@TrustedCS.com>
Date: Tue, 12 Dec 2006 19:02:41 +0000 (-0600)
Subject: selinux: Delete mls_copy_context
X-Git-Tag: v2.6.20-rc5~38^2
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0efc61eaee5471acd7399c8536feff280b4966dd;p=pandora-kernel.git

selinux: Delete mls_copy_context

This deletes mls_copy_context() in favor of mls_context_cpy() and
replaces mls_scopy_context() with mls_context_cpy_low().

Signed-off-by: Venkat Yekkirala <vyekkirala@TrustedCS.com>
Acked-by:  Stephen Smalley <sds@tycho.nsa.gov>
Signed-off-by: James Morris <jmorris@namei.org>
---

diff --git a/security/selinux/ss/context.h b/security/selinux/ss/context.h
index 0562bacb7b99..2eee0dab524d 100644
--- a/security/selinux/ss/context.h
+++ b/security/selinux/ss/context.h
@@ -55,6 +55,29 @@ out:
 	return rc;
 }
 
+/*
+ * Sets both levels in the MLS range of 'dst' to the low level of 'src'.
+ */
+static inline int mls_context_cpy_low(struct context *dst, struct context *src)
+{
+	int rc;
+
+	if (!selinux_mls_enabled)
+		return 0;
+
+	dst->range.level[0].sens = src->range.level[0].sens;
+	rc = ebitmap_cpy(&dst->range.level[0].cat, &src->range.level[0].cat);
+	if (rc)
+		goto out;
+
+	dst->range.level[1].sens = src->range.level[0].sens;
+	rc = ebitmap_cpy(&dst->range.level[1].cat, &src->range.level[0].cat);
+	if (rc)
+		ebitmap_destroy(&dst->range.level[0].cat);
+out:
+	return rc;
+}
+
 static inline int mls_context_cmp(struct context *c1, struct context *c2)
 {
 	if (!selinux_mls_enabled)
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