kevin
b81b702433
- 新增竞速拨号器(racedial.go)：域名连接时并行解析所有A/AAAA记录， 同时对所有IP发起TCP连接，第一个成功的胜出，确保选择延迟最低的地址 - ServerProfile新增IPPreference字段(auto/v4/v6)，支持用户指定IP版本偏好 - 填写服务器IP时跳过域名解析直接使用IP，顺序failover - 连接成功后状态栏显示「已连接 (域名 -> 实际IP)」 - DB迁移v6：server_profiles表添加ip_preference列 - WebSocket拨号与HTTP登录均使用竞速拨号器 - 补充中英文i18n翻译
89 lines
2.7 KiB
Go
89 lines
2.7 KiB
Go
package ui
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import (
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"fmt"
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"os"
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"path/filepath"
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"time"
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"lmvpn/internal/ipc"
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"lmvpn/internal/log"
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"lmvpn/internal/paths"
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"lmvpn/internal/version"
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)
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// ensureDaemon checks if the daemon is running and launches it (as
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// root via osascript) if not. It blocks until the daemon is reachable
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// or times out.
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//
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// The daemon is launched via the `daemon-launch` subcommand of the GUI
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// binary, which uses Go's syscall.SysProcAttr{Setsid: true} to fork
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// the actual daemon binary (lmvpnd) into a new session. This is the
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// robust replacement for shell-level `nohup ... &` which fails inside
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// osascript's `do shell script` (no TTY → ioctl error).
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//
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// The --daemon-bin flag tells daemon-launch where to find lmvpnd. If
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// not given, daemon-launch auto-detects it relative to its own path.
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func ensureDaemon() (*ipc.Client, error) {
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// Fast path: a daemon is already running. Verify its build version
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// matches ours; if not, it's a stale process from a previous build
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// and must be restarted so the new code takes effect.
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if c, err := ipc.Dial(); err == nil {
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if ver, qerr := c.QueryVersion(); qerr == nil && ver == version.Version {
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return c, nil
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} else {
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log.L().Info("stale daemon detected, restarting",
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"got", ver, "expected", version.Version, "query_err", qerr)
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_ = ipc.SendShutdown(c)
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c.Close()
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// Wait for the old daemon to exit and release the socket.
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for i := 0; i < 30; i++ {
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time.Sleep(100 * time.Millisecond)
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if cc, err := ipc.Dial(); err == nil {
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cc.Close()
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} else {
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break // socket gone
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}
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}
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}
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}
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exe, err := os.Executable()
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if err != nil {
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return nil, fmt.Errorf("resolve executable: %w", err)
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}
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// Resolve symlinks (e.g. .app bundle's MacOS/lmvpn).
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exe, err = filepath.EvalSymlinks(exe)
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if err != nil {
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return nil, fmt.Errorf("resolve symlink: %w", err)
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}
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// Compute the daemon binary path: same directory as the GUI binary.
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daemonBin := filepath.Join(filepath.Dir(exe), daemonBinaryName)
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if _, err := os.Stat(daemonBin); err != nil {
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return nil, fmt.Errorf("daemon binary not found at %s: %w", daemonBin, err)
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}
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home, _ := os.UserHomeDir()
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uid := os.Getuid()
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gid := os.Getgid()
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if err := launchElevated(exe, daemonBin, home, uid, gid); err != nil {
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return nil, err
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}
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// Wait for the daemon to become reachable.
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logFile := paths.DaemonLogFile()
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for i := 0; i < 60; i++ {
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time.Sleep(250 * time.Millisecond)
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if c, err := ipc.Dial(); err == nil {
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log.L().Info("daemon connected", "socket", paths.IPCAddress())
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return c, nil
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} else if i == 0 || i == 10 || i == 30 || i == 59 {
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log.L().Warn("daemon not reachable yet, retrying",
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"attempt", i+1, "socket", paths.IPCAddress(), "error", err)
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}
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}
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return nil, fmt.Errorf("daemon did not become reachable (check %s)", logFile)
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}
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