NetLabel: Add secid token support to the NetLabel secattr struct

This patch adds support to the NetLabel LSM secattr struct for a secid token
and a type field, paving the way for full LSM/SELinux context support and
"static" or "fallback" labels.  In addition, this patch adds a fair amount
of documentation to the core NetLabel structures used as part of the
NetLabel kernel API.

Signed-off-by: Paul Moore <paul.moore@hp.com>
Signed-off-by: James Morris <jmorris@namei.org>

1 files changed, 4 insertions, 1 deletions

diff --git a/security/selinux/ss/services.c b/security/selinux/ss/services.c
index 4bf715d4cf29..0f97ef578370 100644
--- a/security/selinux/ss/services.c
+++ b/security/selinux/ss/services.c
@@ -2550,6 +2550,9 @@ int security_netlbl_secattr_to_sid(struct netlbl_lsm_secattr *secattr,
                 default:
                         goto netlbl_secattr_to_sid_return;
                 }
+        } else if (secattr->flags & NETLBL_SECATTR_SECID) {
+                *sid = secattr->attr.secid;
+                rc = 0;
         } else if (secattr->flags & NETLBL_SECATTR_MLS_LVL) {
                 ctx = sidtab_search(&sidtab, base_sid);
                 if (ctx == NULL)
@@ -2561,7 +2564,7 @@ int security_netlbl_secattr_to_sid(struct netlbl_lsm_secattr *secattr,
                 mls_import_netlbl_lvl(&ctx_new, secattr);
                 if (secattr->flags & NETLBL_SECATTR_MLS_CAT) {
                         if (ebitmap_netlbl_import(&ctx_new.range.level[0].cat,
-                                                  secattr->mls_cat) != 0)
+                                                  secattr->attr.mls.cat) != 0)
                                 goto netlbl_secattr_to_sid_return;
                         ctx_new.range.level[1].cat.highbit =
                                 ctx_new.range.level[0].cat.highbit;