diff --git a/src/logging.c b/src/logging.c
new file mode 100644
index 0000000..54c8900
--- /dev/null
+++ b/src/logging.c
@@ -0,0 +1,33 @@
+#include <osmocom/core/utils.h>
+#include "logging.h"
+
+const struct log_info_cat hlr_log_info_cat[] = {
+	[DMAIN] = {
+		.name = "DMAIN",
+		.description = "Main Program",
+		.enabled = 1, .loglevel = LOGL_DEBUG,
+	},
+	[DDB] = {
+		.name = "DDB",
+		.description = "Database Layer",
+		.color = "\033[1;31m",
+		.enabled = 1, .loglevel = LOGL_DEBUG,
+	},
+	[DLGSUP] = {
+		.name = "DLGSUP",
+		.description = "GSUP Protocol",
+		.color = "\033[1;32m",
+		.enabled = 1, .loglevel = LOGL_INFO,
+	},
+	[DAUC] = {
+		.name = "DAUC",
+		.description = "Authentication Center",
+		.color = "\033[1;33m",
+		.enabled = 1, .loglevel = LOGL_DEBUG,
+	},
+};
+
+const struct log_info hlr_log_info = {
+	.cat = hlr_log_info_cat,
+	.num_cat = ARRAY_SIZE(hlr_log_info_cat),
+};