diff options
Diffstat (limited to 'tunnel/winipcfg/winipcfg.go')
| -rw-r--r-- | tunnel/winipcfg/winipcfg.go | 30 |
1 files changed, 29 insertions, 1 deletions
diff --git a/tunnel/winipcfg/winipcfg.go b/tunnel/winipcfg/winipcfg.go index 2fc0c875..e24157b9 100644 --- a/tunnel/winipcfg/winipcfg.go +++ b/tunnel/winipcfg/winipcfg.go @@ -1,11 +1,12 @@ /* SPDX-License-Identifier: MIT * - * Copyright (C) 2019 WireGuard LLC. All Rights Reserved. + * Copyright (C) 2019-2022 WireGuard LLC. All Rights Reserved. */ package winipcfg import ( + "runtime" "unsafe" "golang.org/x/sys/windows" @@ -29,6 +30,7 @@ import ( //sys getIfTable2Ex(level MibIfEntryLevel, table **mibIfTable2) (ret error) = iphlpapi.GetIfTable2Ex //sys convertInterfaceLUIDToGUID(interfaceLUID *LUID, interfaceGUID *windows.GUID) (ret error) = iphlpapi.ConvertInterfaceLuidToGuid //sys convertInterfaceGUIDToLUID(interfaceGUID *windows.GUID, interfaceLUID *LUID) (ret error) = iphlpapi.ConvertInterfaceGuidToLuid +//sys convertInterfaceIndexToLUID(interfaceIndex uint32, interfaceLUID *LUID) (ret error) = iphlpapi.ConvertInterfaceIndexToLuid // GetAdaptersAddresses function retrieves the addresses associated with the adapters on the local computer. // https://docs.microsoft.com/en-us/windows/desktop/api/iphlpapi/nf-iphlpapi-getadaptersaddresses @@ -166,3 +168,29 @@ func GetIPForwardTable2(family AddressFamily) ([]MibIPforwardRow2, error) { // https://docs.microsoft.com/en-us/windows/desktop/api/netioapi/nf-netioapi-cancelmibchangenotify2 //sys cancelMibChangeNotify2(notificationHandle windows.Handle) (ret error) = iphlpapi.CancelMibChangeNotify2 + +// +// DNS-related functions +// + +//sys setInterfaceDnsSettingsByPtr(guid *windows.GUID, settings *DnsInterfaceSettings) (ret error) = iphlpapi.SetInterfaceDnsSettings? +//sys setInterfaceDnsSettingsByQwords(guid1 uintptr, guid2 uintptr, settings *DnsInterfaceSettings) (ret error) = iphlpapi.SetInterfaceDnsSettings? +//sys setInterfaceDnsSettingsByDwords(guid1 uintptr, guid2 uintptr, guid3 uintptr, guid4 uintptr, settings *DnsInterfaceSettings) (ret error) = iphlpapi.SetInterfaceDnsSettings? + +// The GUID is passed by value, not by reference, which means different +// things on different calling conventions. On amd64, this means it's +// passed by reference anyway, while on arm, arm64, and 386, it's split +// into words. +func SetInterfaceDnsSettings(guid windows.GUID, settings *DnsInterfaceSettings) error { + words := (*[4]uintptr)(unsafe.Pointer(&guid)) + switch runtime.GOARCH { + case "amd64": + return setInterfaceDnsSettingsByPtr(&guid, settings) + case "arm64": + return setInterfaceDnsSettingsByQwords(words[0], words[1], settings) + case "arm", "386": + return setInterfaceDnsSettingsByDwords(words[0], words[1], words[2], words[3], settings) + default: + panic("unknown calling convention") + } +} |