Add osmo_prim_op_names[] symbol and _SAP_SS7_BASE define
diff --git a/src/prim.c b/src/prim.c
new file mode 100644
index 0000000..c2e7198
--- /dev/null
+++ b/src/prim.c
@@ -0,0 +1,10 @@
+#include <osmocom/core/utils.h>
+#include <osmocom/core/prim.h>
+
+const struct value_string osmo_prim_op_names[5] = {
+	{ PRIM_OP_REQUEST,			"request" },
+	{ PRIM_OP_RESPONSE,			"response" },
+	{ PRIM_OP_INDICATION,			"indication" },
+	{ PRIM_OP_CONFIRM,			"confirm" },
+	{ 0, NULL }
+};