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/* SPDX-License-Identifier: MIT
*
* Copyright (C) 2019 WireGuard LLC. All Rights Reserved.
*/
package namespaceapi
import "golang.org/x/sys/windows"
//sys createBoundaryDescriptor(name *uint16, flags uint32) (handle windows.Handle, err error) = kernel32.CreateBoundaryDescriptorW
//sys deleteBoundaryDescriptor(boundaryDescriptor windows.Handle) = kernel32.DeleteBoundaryDescriptor
//sys addSIDToBoundaryDescriptor(boundaryDescriptor *windows.Handle, requiredSid *windows.SID) (err error) = kernel32.AddSIDToBoundaryDescriptor
//sys createPrivateNamespace(privateNamespaceAttributes *windows.SecurityAttributes, boundaryDescriptor windows.Handle, aliasPrefix *uint16) (handle windows.Handle, err error) = kernel32.CreatePrivateNamespaceW
//sys openPrivateNamespace(boundaryDescriptor windows.Handle, aliasPrefix *uint16) (handle windows.Handle, err error) = kernel32.OpenPrivateNamespaceW
//sys closePrivateNamespace(handle windows.Handle, flags uint32) (err error) = kernel32.ClosePrivateNamespace
// BoundaryDescriptor represents a boundary that defines how the objects in the namespace are to be isolated.
type BoundaryDescriptor windows.Handle
// CreateBoundaryDescriptor creates a boundary descriptor.
func CreateBoundaryDescriptor(name string) (BoundaryDescriptor, error) {
name16, err := windows.UTF16PtrFromString(name)
if err != nil {
return 0, err
}
handle, err := createBoundaryDescriptor(name16, 0)
if err != nil {
return 0, err
}
return BoundaryDescriptor(handle), nil
}
// Delete deletes the specified boundary descriptor.
func (bd BoundaryDescriptor) Delete() {
deleteBoundaryDescriptor(windows.Handle(bd))
}
// AddSid adds a security identifier (SID) to the specified boundary descriptor.
func (bd BoundaryDescriptor) AddSid(requiredSid *windows.SID) error {
return addSIDToBoundaryDescriptor((*windows.Handle)(&bd), requiredSid)
}
// PrivateNamespace represents a private namespace. Duh?!
type PrivateNamespace windows.Handle
// CreatePrivateNamespace creates a private namespace.
func CreatePrivateNamespace(privateNamespaceAttributes *windows.SecurityAttributes, boundaryDescriptor BoundaryDescriptor, aliasPrefix string) (PrivateNamespace, error) {
aliasPrefix16, err := windows.UTF16PtrFromString(aliasPrefix)
if err != nil {
return 0, err
}
handle, err := createPrivateNamespace(privateNamespaceAttributes, windows.Handle(boundaryDescriptor), aliasPrefix16)
if err != nil {
return 0, err
}
return PrivateNamespace(handle), nil
}
// OpenPrivateNamespace opens a private namespace.
func OpenPrivateNamespace(boundaryDescriptor BoundaryDescriptor, aliasPrefix string) (PrivateNamespace, error) {
aliasPrefix16, err := windows.UTF16PtrFromString(aliasPrefix)
if err != nil {
return 0, err
}
handle, err := openPrivateNamespace(windows.Handle(boundaryDescriptor), aliasPrefix16)
if err != nil {
return 0, err
}
return PrivateNamespace(handle), nil
}
// ClosePrivateNamespaceFlags describes flags that are used by PrivateNamespace's Close() method.
type ClosePrivateNamespaceFlags uint32
const (
// PrivateNamespaceFlagDestroy makes the close to destroy the namespace.
PrivateNamespaceFlagDestroy = ClosePrivateNamespaceFlags(0x1)
)
// Close closes an open namespace handle.
func (pns PrivateNamespace) Close(flags ClosePrivateNamespaceFlags) error {
return closePrivateNamespace(windows.Handle(pns), uint32(flags))
}
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