From: Eamon Walsh Date: Thu, 24 Jan 2008 20:30:52 +0000 (-0500) Subject: selinux: make mls_compute_sid always polyinstantiate X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=2e08c0c1c3977a5ddc88887dd3af1b26c433e9d0;p=deliverable%2Flinux.git 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 Acked-by: Stephen Smalley Signed-off-by: James Morris --- diff --git a/security/selinux/ss/mls.c b/security/selinux/ss/mls.c index fb5d70a6628d..3bbcb5369af9 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; }