feat: add AttachStructOps()

link.go

@@ -33,6 +33,7 @@ const (
 	CgroupLegacy
 	Netns
 	Iter
+	StructOps
 )
 
 //
@@ -47,6 +48,7 @@ type bpfLinkLegacy struct {
 type BPFLink struct {
 	link      *C.struct_bpf_link
 	prog      *BPFProg
+	m         *BPFMap
 	linkType  LinkType
 	eventName string
 	legacy    *bpfLinkLegacy // if set, this is a fake BPFLink

map.go

@@ -73,6 +73,19 @@ func (m *BPFMap) ReuseFD(fd int) error {
 	return nil
 }
 
+func (m *BPFMap) AttachStructOps() (*BPFLink, error) {
+	linkC, errno := C.bpf_map__attach_struct_ops(m.bpfMap)
+	if linkC == nil {
+		return nil, fmt.Errorf("failed to attach struct_ops: %w", errno)
+	}
+	return &BPFLink{
+		link:      linkC,
+		m:         m,
+		linkType:  StructOps,
+		eventName: fmt.Sprintf("structOps-%s", m.Name()),
+	}, nil
+}
+
 func (m *BPFMap) Name() string {
 	return C.GoString(C.bpf_map__name(m.bpfMap))
 }