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wintun: simplify checking reboot requirement

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We never checked checkReboot() reported error anyway.

Signed-off-by: Simon Rozman <simon@rozman.si>
This commit is contained in:
Simon Rozman 2019-08-02 15:37:08 +02:00
parent 73698066d1
commit f5e54932e6
1 changed files with 7 additions and 18 deletions
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25
tun/wintun/wintun_windows.go
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@ -290,10 +290,7 @@ func CreateInterface(description string, requestedGUID *windows.GUID) (wintun *W
if devInfoList.SetClassInstallParams(deviceData, &removeDeviceParams.ClassInstallHeader, uint32(unsafe.Sizeof(removeDeviceParams))) == nil {
// Call appropriate class installer.
if devInfoList.CallClassInstaller(setupapi.DIF_REMOVE, deviceData) == nil {
// Check if a system reboot is required. (Ignore errors)
if ret, _ := checkReboot(devInfoList, deviceData); ret {
rebootRequired = true
}
rebootRequired = rebootRequired || checkReboot(devInfoList, deviceData)
}
}
@ -307,11 +304,7 @@ func CreateInterface(description string, requestedGUID *windows.GUID) (wintun *W
err = fmt.Errorf("SetupDiCallClassInstaller(DIF_INSTALLDEVICE) failed: %v", err)
return
}
// Check if a system reboot is required. (Ignore errors)
if ret, _ := checkReboot(devInfoList, deviceData); ret {
rebootRequired = true
}
rebootRequired = checkReboot(devInfoList, deviceData)
// DIF_INSTALLDEVICE returns almost immediately, while the device installation
// continues in the background. It might take a while, before all registry
@ -456,9 +449,7 @@ func (wintun *Wintun) DeleteInterface() (rebootRequired bool, err error) {
return false, fmt.Errorf("SetupDiCallClassInstaller failed: %v", err)
}
// Check if a system reboot is required. (Ignore errors)
rebootRequired, _ = checkReboot(devInfoList, deviceData)
return rebootRequired, nil
return checkReboot(devInfoList, deviceData), nil
}
// DeleteAllInterfaces deletes all Wintun interfaces, and returns which
@ -529,22 +520,20 @@ func DeleteAllInterfaces() (deviceInstancesDeleted []uint32, rebootRequired bool
errors = append(errors, err)
continue
}
if !rebootRequired {
rebootRequired, _ = checkReboot(devInfoList, deviceData)
}
rebootRequired = rebootRequired || checkReboot(devInfoList, deviceData)
deviceInstancesDeleted = append(deviceInstancesDeleted, inst)
}
return
}
// checkReboot checks device install parameters if a system reboot is required.
func checkReboot(deviceInfoSet setupapi.DevInfo, deviceInfoData *setupapi.DevInfoData) (bool, error) {
func checkReboot(deviceInfoSet setupapi.DevInfo, deviceInfoData *setupapi.DevInfoData) bool {
devInstallParams, err := deviceInfoSet.DeviceInstallParams(deviceInfoData)
if err != nil {
return false, err
return false
}
return (devInstallParams.Flags & (setupapi.DI_NEEDREBOOT | setupapi.DI_NEEDRESTART)) != 0, nil
return (devInstallParams.Flags & (setupapi.DI_NEEDREBOOT | setupapi.DI_NEEDRESTART)) != 0
}
// setQuietInstall sets device install parameters for a quiet installation