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author | Jason A. Donenfeld <Jason@zx2c4.com> | 2019-02-25 18:45:32 +0100 |
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committer | Jason A. Donenfeld <Jason@zx2c4.com> | 2019-02-28 08:05:02 +0100 |
commit | 019ce9f2815cd21756be4f11702fcb02b5453fdc (patch) | |
tree | 43070181e30db403dfad69f3e67a566ba589df4e /conf/path_windows.go | |
parent | Initial scaffolding (diff) | |
download | wireguard-windows-019ce9f2815cd21756be4f11702fcb02b5453fdc.tar.xz wireguard-windows-019ce9f2815cd21756be4f11702fcb02b5453fdc.zip |
conf: introduce configuration management
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Diffstat (limited to 'conf/path_windows.go')
-rw-r--r-- | conf/path_windows.go | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/conf/path_windows.go b/conf/path_windows.go new file mode 100644 index 00000000..0ee3fc73 --- /dev/null +++ b/conf/path_windows.go @@ -0,0 +1,50 @@ +/* SPDX-License-Identifier: MIT + * + * Copyright (C) 2019 WireGuard LLC. All Rights Reserved. + */ + +package conf + +import ( + "errors" + "golang.org/x/sys/windows" + "os" + "path/filepath" + "unsafe" +) + +//sys coTaskMemFree(pointer uintptr) = ole32.CoTaskMemFree +//sys shGetKnownFolderPath(id *windows.GUID, flags uint32, token windows.Handle, path **uint16) (err error) [failretval!=0] = shell32.SHGetKnownFolderPath +var folderIDLocalAppData = windows.GUID{0xf1b32785, 0x6fba, 0x4fcf, [8]byte{0x9d, 0x55, 0x7b, 0x8e, 0x7f, 0x15, 0x70, 0x91}} + +const kfFlagCreate = 0x00008000 + +var cachedConfigFileDir string + +func resolveConfigFileDir() (string, error) { + if cachedConfigFileDir != "" { + return cachedConfigFileDir, nil + } + processToken, err := windows.OpenCurrentProcessToken() + if err != nil { + return "", err + } + defer processToken.Close() + var path *uint16 + err = shGetKnownFolderPath(&folderIDLocalAppData, kfFlagCreate, windows.Handle(processToken), &path) + if err != nil { + return "", err + } + defer coTaskMemFree(uintptr(unsafe.Pointer(path))) + root := windows.UTF16ToString((*[windows.MAX_LONG_PATH + 1]uint16)(unsafe.Pointer(path))[:]) + if len(root) == 0 { + return "", errors.New("Unable to determine configuration directory") + } + c := filepath.Join(root, "WireGuard", "Configurations") + err = os.MkdirAll(c, os.ModeDir|0700) + if err != nil { + return "", err + } + cachedConfigFileDir = c + return cachedConfigFileDir, nil +} |