Add Loader XDP source files.

src/loader/utils/xdp.h

@@ -0,0 +1,18 @@
+#pragma once
+
+#include <bpf.h>
+#include <libbpf.h>
+#include <xdp/libxdp.h>
+
+#include  <common/all.h>
+
+#include <loader/utils/cmdline.h>
+#include <loader/utils/config.h>
+#include <loader/utils/helpers.h>
+
+#define XDP_OBJ_PATH "/etc/xdpfw/xdp_prog.o"
+
+int FindMapFd(struct xdp_program *prog, const char *map_name);
+struct xdp_program *LoadBpfObj(const char *file_name);
+int AttachXdp(struct xdp_program *prog, int ifidx, u8 detach, cmdline_t *cmd);
+void UpdateFilters(int filters_map, config__t *cfg);