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authorEamon Walsh <ewalsh@tycho.nsa.gov>2008-01-24 15:30:52 -0500
committerJames Morris <jmorris@namei.org>2008-01-25 11:29:56 +1100
commit2e08c0c1c3977a5ddc88887dd3af1b26c433e9d0 (patch)
tree2487c7d7bf54a5a26c53416ee4f1f14886121e15 /security
parent1996a10948e50e546dc2b64276723c0b64d3173b (diff)
downloadlinux-linaro-2e08c0c1c3977a5ddc88887dd3af1b26c433e9d0.tar.gz
selinux: make mls_compute_sid always polyinstantiate
This patch removes the requirement that the new and related object types differ in order to polyinstantiate by MLS level. This allows MLS polyinstantiation to occur in the absence of explicit type_member rules or when the type has not changed. Potential users of this support include pam_namespace.so (directory polyinstantiation) and the SELinux X support (property polyinstantiation). Signed-off-by: Eamon Walsh <ewalsh@tycho.nsa.gov> 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/ss/mls.c11
1 files changed, 2 insertions, 9 deletions
diff --git a/security/selinux/ss/mls.c b/security/selinux/ss/mls.c
index fb5d70a6628..3bbcb5369af 100644
--- a/security/selinux/ss/mls.c
+++ b/security/selinux/ss/mls.c
@@ -537,15 +537,8 @@ int mls_compute_sid(struct context *scontext,
/* Use the process effective MLS attributes. */
return mls_context_cpy_low(newcontext, scontext);
case AVTAB_MEMBER:
- /* Only polyinstantiate the MLS attributes if
- the type is being polyinstantiated */
- if (newcontext->type != tcontext->type) {
- /* Use the process effective MLS attributes. */
- return mls_context_cpy_low(newcontext, scontext);
- } else {
- /* Use the related object MLS attributes. */
- return mls_context_cpy(newcontext, tcontext);
- }
+ /* Use the process effective MLS attributes. */
+ return mls_context_cpy_low(newcontext, scontext);
default:
return -EINVAL;
}