Index: lib_vfs.c
===================================================================
--- lib_vfs.c	(revision 23993)
+++ lib_vfs.c	(revision 23994)
@@ -30,7 +30,38 @@
 #include "data.h"
 #include "plugins.h"
 
+#include "lib_vfs.h"
 
+static void vfs_list_layers(pcb_board_t *pcb, pcb_vfs_list_cb cb, void *ctx)
+{
+	gds_t path;
+	pcb_layer_id_t lid;
+	size_t orig_used;
+
+	cb(ctx, "data/layers", 1);
+	gds_init(&path);
+	gds_append_str(&path, "data/layers/");
+	orig_used = path.used;
+	for(lid = 0; lid < pcb->Data->LayerN; lid++) {
+		path.used = orig_used;
+		pcb_append_printf(&path, "%ld", lid);
+		cb(ctx, path.array, 1);
+	}
+	gds_uninit(&path);
+}
+
+int pcb_vfs_list(pcb_board_t *pcb, pcb_vfs_list_cb cb, void *ctx)
+{
+	cb(ctx, "data", 1);
+	vfs_list_layers(pcb, cb, ctx);
+	cb(ctx, "data/layer_groups", 1);
+	cb(ctx, "route_styles", 1);
+	cb(ctx, "netlist", 1);
+
+	return 0;
+}
+
+
 int pplg_check_ver_lib_vfs(int ver_needed) { return 0; }
 
 void pplg_uninit_lib_vfs(void)
Index: lib_vfs.h
===================================================================
--- lib_vfs.h	(revision 23993)
+++ lib_vfs.h	(revision 23994)
@@ -24,3 +24,9 @@
  *    mailing list: pcb-rnd (at) list.repo.hu (send "subscribe")
  */
 
+#include "board.h"
+
+typedef void (*pcb_vfs_list_cb)(void *ctx, const char *path, int isdir);
+
+int pcb_vfs_list(pcb_board_t *pcb, pcb_vfs_list_cb cb, void *ctx);
+