Files
lmvpn_client/internal/daemon/launch_windows.go
T
kevin 65a5932eba feat: 支持 Windows x86_64 平台编译
- 新增 WinTun TUN 设备实现(tun_windows.go),无需安装驱动,
  wintun.dll 嵌入 exe 运行时自动释放
- 新增 Windows 路由管理(route_windows.go),使用 route/netsh 命令
- 新增 Windows 路径(paths_windows.go),使用 %APPDATA%/%LOCALAPPDATA%
- 拆分 daemon 启动逻辑:launch_unix.go(Setsid) / launch_windows.go
  (CREATE_NEW_PROCESS_GROUP),公共代码提取到 launch_common.go
- 拆分提权逻辑:elevation_darwin.go(osascript) / elevation_windows.go
  (ShellExecute UAC) / elevation_other.go(pkexec)
- IPCSocketPath 按平台分散,Windows 用 %TEMP%\lmvpn.sock
- daemon 二进制名用编译时常量(daemonBinaryName),按平台选定 .exe 后缀
- Makefile 新增 build-windows 目标
- 重新标记 !darwin 文件为 !darwin && !windows
2026-07-07 16:50:42 +08:00

94 lines
2.3 KiB
Go

//go:build windows
package daemon
import (
"fmt"
"os"
"path/filepath"
"syscall"
"lmvpn/internal/paths"
)
// Launch starts the daemon binary (lmvpnd.exe) as a detached process
// and returns immediately. On Windows, detachment is achieved via
// CREATE_NEW_PROCESS_GROUP | DETACHED_PROCESS creation flags instead
// of the Unix Setsid call.
//
// The launcher itself is invoked by the GUI via ShellExecute "runas"
// (UAC elevation). It:
// 1. Computes the daemon log path using the user's home directory
// 2. Opens the log file (append) and NUL
// 3. Starts the lmvpnd.exe binary, redirecting stdio
// 4. Returns immediately — the child continues running independently
func Launch(userHome string, uid, gid int, daemonBin string) error {
paths.SetUserHome(userHome)
if err := paths.EnsureDirs(); err != nil {
fmt.Fprintf(os.Stderr, "ensure dirs: %v\n", err)
}
if daemonBin == "" {
var err error
daemonBin, err = resolveDaemonBinary()
if err != nil {
return err
}
}
absBin, err := filepath.Abs(daemonBin)
if err != nil {
return fmt.Errorf("resolve absolute path for %s: %w", daemonBin, err)
}
daemonBin = absBin
if _, err := os.Stat(daemonBin); err != nil {
return fmt.Errorf("daemon binary not found at %s: %w", daemonBin, err)
}
logPath := paths.DaemonLogFile()
logFile, err := os.OpenFile(logPath, os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0o644)
if err != nil {
return fmt.Errorf("open daemon log %s: %w", logPath, err)
}
devNull, err := os.Open(os.DevNull)
if err != nil {
logFile.Close()
return fmt.Errorf("open NUL: %w", err)
}
args := []string{
"--user-home", userHome,
"--uid", fmt.Sprintf("%d", uid),
"--gid", fmt.Sprintf("%d", gid),
}
fmt.Fprintf(logFile, "=== launcher: starting daemon %s %v ===\n", daemonBin, args)
// CREATE_NEW_PROCESS_GROUP (0x200) | DETACHED_PROCESS (0x8)
procAttr := &os.ProcAttr{
Dir: os.TempDir(),
Env: append(os.Environ(),
"LMVPN_DAEMON=1",
),
Files: []*os.File{devNull, logFile, logFile},
Sys: &syscall.SysProcAttr{
CreationFlags: 0x00000200 | 0x00000008,
},
}
pid, err := os.StartProcess(daemonBin, append([]string{daemonBin}, args...), procAttr)
logFile.Close()
devNull.Close()
if err != nil {
return fmt.Errorf("start daemon process: %w", err)
}
_ = pid.Release()
fmt.Fprintf(os.Stderr, "daemon launched (pid %d, bin %s)\n", pid.Pid, daemonBin)
return nil
}