diff options
Diffstat (limited to 'tun')
| -rw-r--r-- | tun/wintun/wintun_windows.go | 31 |
1 files changed, 22 insertions, 9 deletions
diff --git a/tun/wintun/wintun_windows.go b/tun/wintun/wintun_windows.go index 7286435..bae1089 100644 --- a/tun/wintun/wintun_windows.go +++ b/tun/wintun/wintun_windows.go @@ -84,6 +84,14 @@ func makeWintun(deviceInfoSet setupapi.DevInfo, deviceInfoData *setupapi.DevInfo }, nil } +func removeNumberedSuffix(ifname string) string { + removed := strings.TrimRight(ifname, "0123456789") + if removed != ifname && len(removed) > 1 && removed[len(removed)-1] == ' ' { + return removed[:len(removed)-1] + } + return ifname +} + // GetInterface finds a Wintun interface by its name. This function returns // the interface if found, or windows.ERROR_OBJECT_NOT_FOUND otherwise. If // the interface is found but not a Wintun-class, this function returns @@ -123,14 +131,9 @@ func GetInterface(ifname string) (*Wintun, error) { continue } ifname2 = strings.ToLower(ifname2) - ifname3 := strings.TrimRight(ifname2, "0123456789") - if ifname3 != ifname2 && len(ifname3) > 1 && ifname3[len(ifname3)-1] == ' ' { - ifname3 = ifname3[:len(ifname3)-1] - } else { - ifname3 = "" - } + ifname3 := removeNumberedSuffix(ifname2) - if ifname == ifname2 || (len(ifname3) > 0 && ifname == ifname3) { + if ifname == ifname2 || ifname == ifname3 { err = devInfoList.BuildDriverInfoList(deviceData, setupapi.SPDIT_COMPATDRIVER) if err != nil { return nil, fmt.Errorf("SetupDiBuildDriverInfoList failed: %v", err) @@ -472,14 +475,24 @@ func DeleteMatchingInterfaces(matches func(wintun *Wintun) bool) (deviceInstance if !isWintun { continue } + deviceDescVal, err := devInfoList.DeviceRegistryProperty(deviceData, setupapi.SPDRP_DEVICEDESC) if err != nil { errors = append(errors, fmt.Errorf("DeviceRegistryPropertyString(SPDRP_DEVICEDESC) failed: %v", err)) continue } - if deviceDesc, ok := deviceDescVal.(string); !ok || deviceDesc != deviceTypeName { + deviceDesc, _ := deviceDescVal.(string) + friendlyNameVal, err := devInfoList.DeviceRegistryProperty(deviceData, setupapi.SPDRP_FRIENDLYNAME) + if err != nil { + errors = append(errors, fmt.Errorf("DeviceRegistryPropertyString(SPDRP_FRIENDLYNAME) failed: %v", err)) + continue + } + friendlyName, _ := friendlyNameVal.(string) + if friendlyName != deviceTypeName && deviceDesc != deviceTypeName && + removeNumberedSuffix(friendlyName) != deviceTypeName && removeNumberedSuffix(deviceDesc) != deviceTypeName { continue } + wintun, err := makeWintun(devInfoList, deviceData) if err != nil { errors = append(errors, fmt.Errorf("makeWintun failed: %v", err)) @@ -564,7 +577,7 @@ setloop: if err == windows.ERROR_DUP_NAME { duplicateGuid, err2 := iphlpapi.InterfaceGUIDFromAlias(availableIfname) if err2 == nil { - for j := 0; j < 1000; j++ { + for j := 0; j < maxSuffix; j++ { proposal := fmt.Sprintf("%s %d", ifname, j+1) if proposal == availableIfname { continue |