attr-sql: Use namespace for attr-sql config, with fallback

src/libhydra/plugins/attr_sql/attr_sql_plugin.c

@@ -61,7 +61,7 @@ static bool open_database(private_attr_sql_plugin_t *this,
 		char *uri;
 
 		uri = lib->settings->get_str(lib->settings,
-								"libhydra.plugins.attr-sql.database", NULL);
+								"%s.plugins.attr-sql.database", NULL, lib->ns);
 		if (!uri)
 		{
 			DBG1(DBG_CFG, "attr-sql plugin: database URI not set");
@@ -122,6 +122,8 @@ plugin_t *attr_sql_plugin_create()
 			},
 		},
 	);
+	lib->settings->add_fallback(lib->settings, "%s.plugins.attr-sql",
+								"libhydra.plugins.attr-sql", lib->ns);
 
 	return &this->public.plugin;
 }

src/libhydra/plugins/attr_sql/sql_attribute.c

@@ -457,7 +457,7 @@ sql_attribute_t *sql_attribute_create(database_t *db)
 		},
 		.db = db,
 		.history = lib->settings->get_bool(lib->settings,
-							"libhydra.plugins.attr-sql.lease_history", TRUE),
+							"%s.plugins.attr-sql.lease_history", TRUE, lib->ns),
 	);
 
 	/* close any "online" leases in the case we crashed */

src/pool/pool.c

@@ -1227,11 +1227,16 @@ int main(int argc, char *argv[])
 	{
 		exit(SS_RC_INITIALIZATION_FAILED);
 	}
-
+	/* TODO: make database URI or setting key configurable via command line */
-	uri = lib->settings->get_str(lib->settings, "libhydra.plugins.attr-sql.database", NULL);
+	uri = lib->settings->get_str(lib->settings,
+			"pool.database",
+			lib->settings->get_str(lib->settings,
+				"charon.plugins.attr-sql.database",
+				lib->settings->get_str(lib->settings,
+					"libhydra.plugins.attr-sql.database", NULL)));
 	if (!uri)
 	{
-		fprintf(stderr, "database URI libhydra.plugins.attr-sql.database not set.\n");
+		fprintf(stderr, "database URI pool.database not set.\n");
 		exit(SS_RC_INITIALIZATION_FAILED);
 	}
 	db = lib->db->create(lib->db, uri);