support ebpf

component/ebpf/byteorder/byteorder.go

@@ -0,0 +1,13 @@
+package byteorder
+
+import (
+	"net"
+)
+
+// NetIPv4ToHost32 converts an net.IP to a uint32 in host byte order. ip
+// must be a IPv4 address, otherwise the function will panic.
+func NetIPv4ToHost32(ip net.IP) uint32 {
+	ipv4 := ip.To4()
+	_ = ipv4[3] // Assert length of ipv4.
+	return Native.Uint32(ipv4)
+}

component/ebpf/byteorder/byteorder_bigendian.go

@@ -0,0 +1,12 @@
+//go:build arm64be || armbe || mips || mips64 || mips64p32 || ppc64 || s390 || s390x || sparc || sparc64
+
+package byteorder
+
+import "encoding/binary"
+
+var Native binary.ByteOrder = binary.BigEndian
+
+func HostToNetwork16(u uint16) uint16 { return u }
+func HostToNetwork32(u uint32) uint32 { return u }
+func NetworkToHost16(u uint16) uint16 { return u }
+func NetworkToHost32(u uint32) uint32 { return u }

component/ebpf/byteorder/byteorder_littleendian.go

@@ -0,0 +1,15 @@
+//go:build 386 || amd64 || amd64p32 || arm || arm64 || mips64le || mips64p32le || mipsle || ppc64le || riscv64
+
+package byteorder
+
+import (
+	"encoding/binary"
+	"math/bits"
+)
+
+var Native binary.ByteOrder = binary.LittleEndian
+
+func HostToNetwork16(u uint16) uint16 { return bits.ReverseBytes16(u) }
+func HostToNetwork32(u uint32) uint32 { return bits.ReverseBytes32(u) }
+func NetworkToHost16(u uint16) uint16 { return bits.ReverseBytes16(u) }
+func NetworkToHost32(u uint32) uint32 { return bits.ReverseBytes32(u) }