[MLSXFRM]: Define new SELinux service routine

This defines a routine that combines the Type Enforcement portion of
one sid with the MLS portion from the other sid to arrive at a new
sid. This would be used to define a sid for a security association
that is to be negotiated by IKE as well as for determing the sid for
open requests and connection-oriented child sockets.

Signed-off-by: Venkat Yekkirala <vyekkirala@TrustedCS.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 0 insertions, 20 deletions

diff --git a/security/selinux/ss/mls.c b/security/selinux/ss/mls.c
index 7bc5b6440f70..e15f7e0399b8 100644
--- a/security/selinux/ss/mls.c
+++ b/security/selinux/ss/mls.c
@@ -212,26 +212,6 @@ int mls_context_isvalid(struct policydb *p, struct context *c)
 }
 
 /*
- * Copies the MLS range from `src' into `dst'.
- */
-static inline int mls_copy_context(struct context *dst,
-                                   struct context *src)
-{
-        int l, rc = 0;
-
-        /* Copy the MLS range from the source context */
-        for (l = 0; l < 2; l++) {
-                dst->range.level[l].sens = src->range.level[l].sens;
-                rc = ebitmap_cpy(&dst->range.level[l].cat,
-                                 &src->range.level[l].cat);
-                if (rc)
-                        break;
-        }
-
-        return rc;
-}
-
-/*
  * Set the MLS fields in the security context structure
  * `context' based on the string representation in
  * the string `*scontext'.  Update `*scontext' to