whatcanGOwrong

go/pkg/mod/github.com/cilium/ebpf@v0.11.0/link/netns.go

@@ -0,0 +1,36 @@
+package link
+
+import (
+	"fmt"
+
+	"github.com/cilium/ebpf"
+)
+
+// NetNsLink is a program attached to a network namespace.
+type NetNsLink struct {
+	RawLink
+}
+
+// AttachNetNs attaches a program to a network namespace.
+func AttachNetNs(ns int, prog *ebpf.Program) (*NetNsLink, error) {
+	var attach ebpf.AttachType
+	switch t := prog.Type(); t {
+	case ebpf.FlowDissector:
+		attach = ebpf.AttachFlowDissector
+	case ebpf.SkLookup:
+		attach = ebpf.AttachSkLookup
+	default:
+		return nil, fmt.Errorf("can't attach %v to network namespace", t)
+	}
+
+	link, err := AttachRawLink(RawLinkOptions{
+		Target:  ns,
+		Program: prog,
+		Attach:  attach,
+	})
+	if err != nil {
+		return nil, err
+	}
+
+	return &NetNsLink{*link}, nil
+}