build: move e2e dependencies into e2e/go.mod

Several packages are only used while running the e2e suite. These
packages are less important to update, as the they can not influence the
final executable that is part of the Ceph-CSI container-image.

By moving these dependencies out of the main Ceph-CSI go.mod, it is
easier to identify if a reported CVE affects Ceph-CSI, or only the
testing (like most of the Kubernetes CVEs).

Signed-off-by: Niels de Vos <ndevos@ibm.com>

e2e/vendor/k8s.io/mount-utils/mount_helper_windows.go

@@ -0,0 +1,111 @@
+//go:build windows
+// +build windows
+
+/*
+Copyright 2019 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package mount
+
+import (
+	"fmt"
+	"os"
+	"strconv"
+	"strings"
+	"syscall"
+
+	"k8s.io/klog/v2"
+)
+
+// following failure codes are from https://docs.microsoft.com/en-us/windows/desktop/debug/system-error-codes--1300-1699-
+// ERROR_BAD_NETPATH                 = 53
+// ERROR_NETWORK_BUSY                = 54
+// ERROR_UNEXP_NET_ERR               = 59
+// ERROR_NETNAME_DELETED             = 64
+// ERROR_NETWORK_ACCESS_DENIED       = 65
+// ERROR_BAD_DEV_TYPE                = 66
+// ERROR_BAD_NET_NAME                = 67
+// ERROR_SESSION_CREDENTIAL_CONFLICT = 1219
+// ERROR_LOGON_FAILURE               = 1326
+// WSAEHOSTDOWN                      = 10064
+var errorNoList = [...]int{53, 54, 59, 64, 65, 66, 67, 1219, 1326, 10064}
+
+// IsCorruptedMnt return true if err is about corrupted mount point
+func IsCorruptedMnt(err error) bool {
+	if err == nil {
+		return false
+	}
+
+	var underlyingError error
+	switch pe := err.(type) {
+	case nil:
+		return false
+	case *os.PathError:
+		underlyingError = pe.Err
+	case *os.LinkError:
+		underlyingError = pe.Err
+	case *os.SyscallError:
+		underlyingError = pe.Err
+	}
+
+	if ee, ok := underlyingError.(syscall.Errno); ok {
+		for _, errno := range errorNoList {
+			if int(ee) == errno {
+				klog.Warningf("IsCorruptedMnt failed with error: %v, error code: %v", err, errno)
+				return true
+			}
+		}
+	}
+
+	return false
+}
+
+// NormalizeWindowsPath makes sure the given path is a valid path on Windows
+// systems by making sure all instances of `/` are replaced with `\\`, and the
+// path beings with `c:`
+func NormalizeWindowsPath(path string) string {
+	normalizedPath := strings.Replace(path, "/", "\\", -1)
+	if strings.HasPrefix(normalizedPath, "\\") {
+		normalizedPath = "c:" + normalizedPath
+	}
+	return normalizedPath
+}
+
+// ValidateDiskNumber : disk number should be a number in [0, 99]
+func ValidateDiskNumber(disk string) error {
+	if _, err := strconv.Atoi(disk); err != nil {
+		return fmt.Errorf("wrong disk number format: %q, err: %v", disk, err)
+	}
+	return nil
+}
+
+// isMountPointMatch determines if the mountpoint matches the dir
+func isMountPointMatch(mp MountPoint, dir string) bool {
+	return mp.Path == dir
+}
+
+// PathExists returns true if the specified path exists.
+// TODO: clean this up to use pkg/util/file/FileExists
+func PathExists(path string) (bool, error) {
+	_, err := os.Stat(path)
+	if err == nil {
+		return true, nil
+	} else if os.IsNotExist(err) {
+		return false, nil
+	} else if IsCorruptedMnt(err) {
+		return true, err
+	}
+	return false, err
+}