1 files changed, 37 insertions, 0 deletions
diff --git a/internal/c/tracepoints/write.c b/internal/c/tracepoints/write.c
new file mode 100644
index 0000000..262cb48
--- /dev/null
+++ b/internal/c/tracepoints/write.c
@@ -0,0 +1,37 @@
+//+build ignore
+
+SEC("tracepoint/syscalls/sys_enter_write")
+int handle_enter_write(struct trace_event_raw_sys_enter *ctx) {
+    if (filter())
+        return 0;
+
+    struct fd_event *ev = bpf_ringbuf_reserve(&event_map, sizeof(struct fd_event), 0);
+    if (!ev)
+        return 0;
+
+    ev->op_id = WRITE_ENTER_OP_ID;
+    ev->pid_tgid = bpf_get_current_pid_tgid();
+    ev->time = bpf_ktime_get_ns();
+    ev->fd = (int)ctx->args[0];
+
+    bpf_ringbuf_submit(ev, 0);
+    return 0;
+}
+
+SEC("tracepoint/syscalls/sys_exit_write")
+int handle_exit_write(struct trace_event_raw_sys_enter *ctx) {
+    if (filter())
+        return 0;
+
+    struct null_event *ev = bpf_ringbuf_reserve(&event_map, sizeof(struct null_event), 0);
+    if (!ev)
+        return 0;
+
+    ev->op_id = WRITE_EXIT_OP_ID;
+    ev->pid_tgid = bpf_get_current_pid_tgid();
+    ev->time = bpf_ktime_get_ns();
+
+    bpf_ringbuf_submit(ev, 0);
+
+    return 0;
+}