88 lines
1.6 KiB
Go
88 lines
1.6 KiB
Go
/* SPDX-License-Identifier: MIT
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*
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* Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
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*/
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package ipc
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import (
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"github.com/Microsoft/go-winio"
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"net"
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)
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//TODO: replace these with actual standard windows error numbers from the win package
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const (
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IpcErrorIO = -int64(5)
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IpcErrorProtocol = -int64(71)
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IpcErrorInvalid = -int64(22)
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IpcErrorPortInUse = -int64(98)
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)
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type UAPIListener struct {
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listener net.Listener // unix socket listener
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connNew chan net.Conn
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connErr chan error
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kqueueFd int
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keventFd int
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}
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func (l *UAPIListener) Accept() (net.Conn, error) {
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for {
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select {
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case conn := <-l.connNew:
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return conn, nil
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case err := <-l.connErr:
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return nil, err
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}
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}
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}
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func (l *UAPIListener) Close() error {
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return l.listener.Close()
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}
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func (l *UAPIListener) Addr() net.Addr {
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return l.listener.Addr()
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}
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func GetSystemSecurityDescriptor() string {
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//
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// SDDL encoded.
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//
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// (system = SECURITY_NT_AUTHORITY | SECURITY_LOCAL_SYSTEM_RID)
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// owner: system
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// grant: GENERIC_ALL to system
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//
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return "O:SYD:(A;;GA;;;SY)"
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}
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func UAPIListen(name string) (net.Listener, error) {
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config := winio.PipeConfig{
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SecurityDescriptor: GetSystemSecurityDescriptor(),
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}
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listener, err := winio.ListenPipe("\\\\.\\pipe\\WireGuard\\"+name, &config)
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if err != nil {
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return nil, err
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}
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uapi := &UAPIListener{
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listener: listener,
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connNew: make(chan net.Conn, 1),
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connErr: make(chan error, 1),
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}
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go func(l *UAPIListener) {
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for {
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conn, err := l.listener.Accept()
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if err != nil {
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l.connErr <- err
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break
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}
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l.connNew <- conn
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}
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}(uapi)
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return uapi, nil
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}
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