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Diffstat (limited to 'security/smack/smack_access.c')
-rw-r--r--security/smack/smack_access.c40
1 files changed, 29 insertions, 11 deletions
diff --git a/security/smack/smack_access.c b/security/smack/smack_access.c
index 1a3004189447..9a4c0ad46518 100644
--- a/security/smack/smack_access.c
+++ b/security/smack/smack_access.c
@@ -623,26 +623,24 @@ struct smack_known *smack_from_secid(const u32 secid)
LIST_HEAD(smack_onlycap_list);
DEFINE_MUTEX(smack_onlycap_lock);
-/*
+/**
+ * smack_privileged_cred - are all privilege requirements met by cred
+ * @cap: The requested capability
+ * @cred: the credential to use
+ *
* Is the task privileged and allowed to be privileged
* by the onlycap rule.
*
* Returns true if the task is allowed to be privileged, false if it's not.
*/
-bool smack_privileged(int cap)
+bool smack_privileged_cred(int cap, const struct cred *cred)
{
- struct smack_known *skp = smk_of_current();
+ struct task_smack *tsp = cred->security;
+ struct smack_known *skp = tsp->smk_task;
struct smack_known_list_elem *sklep;
int rc;
- /*
- * All kernel tasks are privileged
- */
- if (unlikely(current->flags & PF_KTHREAD))
- return true;
-
- rc = cap_capable(current_cred(), &init_user_ns, cap,
- SECURITY_CAP_AUDIT);
+ rc = cap_capable(cred, &init_user_ns, cap, SECURITY_CAP_AUDIT);
if (rc)
return false;
@@ -662,3 +660,23 @@ bool smack_privileged(int cap)
return false;
}
+
+/**
+ * smack_privileged - are all privilege requirements met
+ * @cap: The requested capability
+ *
+ * Is the task privileged and allowed to be privileged
+ * by the onlycap rule.
+ *
+ * Returns true if the task is allowed to be privileged, false if it's not.
+ */
+bool smack_privileged(int cap)
+{
+ /*
+ * All kernel tasks are privileged
+ */
+ if (unlikely(current->flags & PF_KTHREAD))
+ return true;
+
+ return smack_privileged_cred(cap, current_cred());
+}