Merge branch 'master' into gfs2

1 files changed, 41 insertions, 0 deletions

diff --git a/net/netlabel/netlabel_user.c b/net/netlabel/netlabel_user.c
index eeb7d768d2b..98a416381e6 100644
--- a/net/netlabel/netlabel_user.c
+++ b/net/netlabel/netlabel_user.c
@@ -32,6 +32,9 @@
 #include <linux/types.h>
 #include <linux/list.h>
 #include <linux/socket.h>
+#include <linux/audit.h>
+#include <linux/tty.h>
+#include <linux/security.h>
 #include <net/sock.h>
 #include <net/netlink.h>
 #include <net/genetlink.h>
@@ -74,3 +77,41 @@ int netlbl_netlink_init(void)
 
 	return 0;
 }
+
+/*
+ * NetLabel Audit Functions
+ */
+
+/**
+ * netlbl_audit_start_common - Start an audit message
+ * @type: audit message type
+ * @audit_info: NetLabel audit information
+ *
+ * Description:
+ * Start an audit message using the type specified in @type and fill the audit
+ * message with some fields common to all NetLabel audit messages.  Returns
+ * a pointer to the audit buffer on success, NULL on failure.
+ *
+ */
+struct audit_buffer *netlbl_audit_start_common(int type,
+					       struct netlbl_audit *audit_info)
+{
+	struct audit_context *audit_ctx = current->audit_context;
+	struct audit_buffer *audit_buf;
+	char *secctx;
+	u32 secctx_len;
+
+	audit_buf = audit_log_start(audit_ctx, GFP_ATOMIC, type);
+	if (audit_buf == NULL)
+		return NULL;
+
+	audit_log_format(audit_buf, "netlabel: auid=%u", audit_info->loginuid);
+
+	if (audit_info->secid != 0 &&
+	    security_secid_to_secctx(audit_info->secid,
+				     &secctx,
+				     &secctx_len) == 0)
+		audit_log_format(audit_buf, " subj=%s", secctx);
+
+	return audit_buf;
+}