feat: add header and CMake configuration for apfree wifidog eBPF traf…

…fic statistics

Signed-off-by: Dengfeng Liu <[email protected]>

ebpf/CMakeLists.txt

@@ -0,0 +1,2 @@
+add_executable(aw-bpfctl aw-bpfctl.c)
+target_link_libraries(aw-bpfctl PRIVATE bpf)

ebpf/aw-bpf.c

@@ -7,20 +7,7 @@
 #include <bpf/bpf_helpers.h>
 #include <bpf/bpf_endian.h>
 
-
-struct counters {
-    __u32 cur_s_bytes;
-    __u32 prev_s_bytes;
-    __u64 total_bytes;
-    __u64 total_packets;
-    __u32 est_slot;
-    __u32 reserved;
-};
-
-struct traffic_stats {
-    struct counters incoming;
-    struct counters outgoing;
-};
+#include "aw-bpf.h"
 
 // Map for IPv4 addresses
 struct {

ebpf/aw-bpf.h

@@ -0,0 +1,39 @@
+/*
+ * aw-bpf.h - Header file for WiFiDog eBPF traffic statistics
+ * Copyright (C) 2025 Dengfeng Liu <[email protected]>
+ */
+
+#ifndef AW_BPF_H
+#define AW_BPF_H
+
+#ifdef __KERNEL__
+#include <linux/types.h>
+#else
+#include <stdint.h>
+#endif
+
+/**
+ * @struct counters
+ * @brief Structure to hold network traffic counters
+ */
+struct counters {
+    __u32 cur_s_bytes;      /* Current session bytes */
+    __u32 prev_s_bytes;     /* Previous session bytes */
+    __u64 total_bytes;      /* Total bytes transferred */
+    __u64 total_packets;    /* Total packets count */
+    __u32 est_slot;         /* Estimation time slot */
+    __u32 reserved;         /* Reserved for future use */
+} __attribute__((packed));
+
+/**
+ * @struct traffic_stats
+ * @brief Structure to maintain both incoming and outgoing traffic statistics
+ */
+struct traffic_stats {
+    struct counters incoming;    /* Incoming traffic counters */
+    struct counters outgoing;    /* Outgoing traffic counters */
+} __attribute__((packed));
+
+/* Function declarations if any would go here */
+
+#endif /* AW_BPF_H */