世界
6a4ae5263e
Both the existing darwin backend and the upcoming windows backend drive USB devices from user space (IOUSBHost CGO calls vs. VBoxUSB IOCTLs). Refactor the per-attachment URB loop out of host_darwin.go into a platform-agnostic userspaceURBSession that talks to a URBEngine interface; the darwin-specific dispatch becomes a 30-line darwinIOUSBHostEngine. Linux's kernelHandoffSession is untouched. Move hex8 into shared.go and add usbipStatusEIO so the shared session does not depend on golang.org/x/sys/unix (Windows has no equivalent).
57 lines
1.4 KiB
Go
57 lines
1.4 KiB
Go
//go:build windows
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package vboxusb
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import (
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"sync"
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E "github.com/sagernet/sing/common/exceptions"
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"golang.org/x/sys/windows"
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)
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// EnableLoadDriverPrivilege flips SeLoadDriverPrivilege ON in the
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// current process token. Required to open \\.\VBoxUSBMon and to drive
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// PnP install/uninstall flows; non-interactive services have it
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// disabled by default. Idempotent.
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func EnableLoadDriverPrivilege() error {
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loadDriverPrivOnce.Do(func() {
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loadDriverPrivErr = enableLoadDriverPrivilege()
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})
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return loadDriverPrivErr
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}
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var (
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loadDriverPrivOnce sync.Once
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loadDriverPrivErr error
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)
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func enableLoadDriverPrivilege() error {
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var token windows.Token
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err := windows.OpenProcessToken(windows.CurrentProcess(), windows.TOKEN_ADJUST_PRIVILEGES|windows.TOKEN_QUERY, &token)
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if err != nil {
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return E.Cause(err, "vboxusb: open process token")
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}
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defer token.Close()
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privName, _ := windows.UTF16PtrFromString("SeLoadDriverPrivilege")
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var luid windows.LUID
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err = windows.LookupPrivilegeValue(nil, privName, &luid)
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if err != nil {
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return E.Cause(err, "vboxusb: lookup SeLoadDriverPrivilege")
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}
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tp := windows.Tokenprivileges{
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PrivilegeCount: 1,
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Privileges: [1]windows.LUIDAndAttributes{{
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Luid: luid,
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Attributes: windows.SE_PRIVILEGE_ENABLED,
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}},
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}
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err = windows.AdjustTokenPrivileges(token, false, &tp, 0, nil, nil)
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if err != nil {
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return E.Cause(err, "vboxusb: adjust token privileges")
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}
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return nil
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}
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