Add VmnetNetwork serialization

Signed-off-by: Norio Nomura <[email protected]>

Author: norio-nomura

virtualization_26.h

@@ -32,6 +32,8 @@ uint32_t VZVmnetNetworkConfiguration_addDhcpReservation(void *config, ether_addr
 uint32_t VZVmnetNetworkConfiguration_setMtu(void *config, uint32_t mtu);
 // vmnet_network
 void *VZVmnetNetworkCreate(void *config, uint32_t *status);
+void *VZVmnetNetworkCreateWithSerialization(CFTypeRef serialization, uint32_t *status);
+CFTypeRef VZVmnetNetwork_copySerialization(void *network, uint32_t *status);
 void VZVmnetNetwork_getIPv6Prefix(void *network, struct in6_addr *prefix, uint8_t *prefix_len);
 void VZVmnetNetwork_getIPv4Subnet(void *network, struct in_addr *subnet, struct in_addr *mask);
 // VZVmnetNetworkDeviceAttachment

virtualization_26.m

@@ -156,6 +156,28 @@ uint32_t VZVmnetNetworkConfiguration_setMtu(void *config, uint32_t mtu)
     RAISE_UNSUPPORTED_MACOS_EXCEPTION();
 }
 
+// see: https://developer.apple.com/documentation/vmnet/vmnet_network_create_with_serialization(_:_:)?language=objc
+void *VZVmnetNetworkCreateWithSerialization(CFTypeRef serialization, uint32_t *status)
+{
+#ifdef INCLUDE_TARGET_OSX_26
+    if (@available(macOS 26, *)) {
+        return vmnet_network_create_with_serialization((xpc_object_t)serialization, status);
+    }
+#endif
+    RAISE_UNSUPPORTED_MACOS_EXCEPTION();
+}
+
+// https://developer.apple.com/documentation/vmnet/vmnet_network_copy_serialization(_:_:)?language=objc
+CFTypeRef VZVmnetNetwork_copySerialization(void *network, uint32_t *status)
+{
+#ifdef INCLUDE_TARGET_OSX_26
+    if (@available(macOS 26, *)) {
+        return vmnet_network_copy_serialization((vmnet_network_ref)network, status);
+    }
+#endif
+    RAISE_UNSUPPORTED_MACOS_EXCEPTION();
+}
+
 // see: https://developer.apple.com/documentation/vmnet/vmnet_network_get_ipv6_prefix(_:_:_:)?language=objc
 void VZVmnetNetwork_getIPv6Prefix(void *network, struct in6_addr *prefix, uint8_t *prefix_len)
 {

vmnet.go

@@ -296,6 +296,70 @@ type VmnetNetwork struct {
 	*pointer
 }
 
+// NewVmnetNetwork creates a new VmnetNetwork with config.
+// This is only supported on macOS 26 and newer, error will
+// be returned on older versions.
+func NewVmnetNetwork(config *VmnetNetworkConfiguration) (*VmnetNetwork, error) {
+	if err := macOSAvailable(26); err != nil {
+		return nil, err
+	}
+
+	var status VmnetReturn
+	ptr := C.VZVmnetNetworkCreate(
+		objc.Ptr(config),
+		(*C.uint32_t)(unsafe.Pointer(&status)),
+	)
+	if !errors.Is(status, ErrVmnetSuccess) {
+		return nil, fmt.Errorf("failed to create VmnetNetwork: %w", status)
+	}
+	network := &VmnetNetwork{
+		pointer: objc.NewPointer(ptr),
+	}
+	objc.SetFinalizer(network, func(self *VmnetNetwork) {
+		objc.Release(self)
+	})
+	return network, nil
+}
+
+// NewVmnetNetworkWithSerialization creates a new VmnetNetwork from a serialized representation.
+// This is only supported on macOS 26 and newer, error will
+// be returned on older versions.
+// see: https://developer.apple.com/documentation/vmnet/vmnet_network_create_with_serialization(_:_:)?language=objc
+func NewVmnetNetworkWithSerialization(serialization uintptr) (*VmnetNetwork, error) {
+	if err := macOSAvailable(26); err != nil {
+		return nil, err
+	}
+
+	var status VmnetReturn
+	ptr := C.VZVmnetNetworkCreateWithSerialization(
+		C.CFTypeRef(serialization),
+		(*C.uint32_t)(unsafe.Pointer(&status)),
+	)
+	if !errors.Is(status, ErrVmnetSuccess) {
+		return nil, fmt.Errorf("failed to create VmnetNetwork with serialization: %w", status)
+	}
+	network := &VmnetNetwork{
+		pointer: objc.NewPointer(ptr),
+	}
+	objc.SetFinalizer(network, func(self *VmnetNetwork) {
+		objc.Release(self)
+	})
+	return network, nil
+}
+
+// CopySerialization returns a pointer to a serialized representation of the vmnet network.
+func (n *VmnetNetwork) CopySerialization() (uintptr, error) {
+	var status VmnetReturn
+	ptr := C.VZVmnetNetwork_copySerialization(
+		objc.Ptr(n),
+		(*C.uint32_t)(unsafe.Pointer(&status)),
+	)
+	if !errors.Is(status, ErrVmnetSuccess) {
+		return 0, fmt.Errorf("failed to copy serialization: %w", status)
+	}
+	return uintptr(ptr), nil
+}
+
 // IPv6Prefix returns the IPv6 prefix of the network.
 func (n *VmnetNetwork) IPv6Prefix() (netip.Prefix, error) {
 	var prefix C.struct_in6_addr
@@ -345,28 +409,3 @@ func inAddrToIP(a C.struct_in_addr) net.IP {
 	p := (*[4]byte)(unsafe.Pointer(&a))
 	return net.IPv4(p[0], p[1], p[2], p[3])
 }
-
-// NewVmnetNetwork creates a new VmnetNetwork with config.
-// This is only supported on macOS 26 and newer, error will
-// be returned on older versions.
-func NewVmnetNetwork(config *VmnetNetworkConfiguration) (*VmnetNetwork, error) {
-	if err := macOSAvailable(26); err != nil {
-		return nil, err
-	}
-
-	var status VmnetReturn
-	ptr := C.VZVmnetNetworkCreate(
-		objc.Ptr(config),
-		(*C.uint32_t)(unsafe.Pointer(&status)),
-	)
-	if !errors.Is(status, ErrVmnetSuccess) {
-		return nil, fmt.Errorf("failed to create VmnetNetwork: %w", status)
-	}
-	network := &VmnetNetwork{
-		pointer: objc.NewPointer(ptr),
-	}
-	objc.SetFinalizer(network, func(self *VmnetNetwork) {
-		objc.Release(self)
-	})
-	return network, nil
-}