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>
diff --git a/security/selinux/ss/mls.c b/security/selinux/ss/mls.c
index 3bbcb53..feaf0a5 100644
--- a/security/selinux/ss/mls.c
+++ b/security/selinux/ss/mls.c
@@ -562,7 +562,7 @@
if (!selinux_mls_enabled)
return;
- secattr->mls_lvl = context->range.level[0].sens - 1;
+ secattr->attr.mls.lvl = context->range.level[0].sens - 1;
secattr->flags |= NETLBL_SECATTR_MLS_LVL;
}
@@ -582,7 +582,7 @@
if (!selinux_mls_enabled)
return;
- context->range.level[0].sens = secattr->mls_lvl + 1;
+ context->range.level[0].sens = secattr->attr.mls.lvl + 1;
context->range.level[1].sens = context->range.level[0].sens;
}
@@ -605,8 +605,8 @@
return 0;
rc = ebitmap_netlbl_export(&context->range.level[0].cat,
- &secattr->mls_cat);
- if (rc == 0 && secattr->mls_cat != NULL)
+ &secattr->attr.mls.cat);
+ if (rc == 0 && secattr->attr.mls.cat != NULL)
secattr->flags |= NETLBL_SECATTR_MLS_CAT;
return rc;
@@ -633,7 +633,7 @@
return 0;
rc = ebitmap_netlbl_import(&context->range.level[0].cat,
- secattr->mls_cat);
+ secattr->attr.mls.cat);
if (rc != 0)
goto import_netlbl_cat_failure;
diff --git a/security/selinux/ss/services.c b/security/selinux/ss/services.c
index 4bf715d..0f97ef5 100644
--- a/security/selinux/ss/services.c
+++ b/security/selinux/ss/services.c
@@ -2550,6 +2550,9 @@
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 @@
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;