Corinna Vinschen wrote:
On Dec  1 16:59, Christian Franke wrote:
Corinna Vinschen wrote:
\Device\Mup is a character device and thus the devices below are not
accessible for directory enumeration.  I assume it's the same for DFS.
Here I see \Device\Mup as a block device on two systems (cygwin1.dll 3.1.7):

$ ls -l /proc/sys/Device/Mup
brwxrwx--x 1 Administrators SYSTEM 0, 250 Dec  1 16:50 /proc/sys/Device/Mup
Huh?

$ ls -l /proc/sys/Device/Mup
crwxrwx--x 1 Administrators SYSTEM 0, 250 Dec  1 17:04 /proc/sys/Device/Mup

This is what I'd expect.  Can you debug why this is a block device
on your systems?


NtQueryVolumeInformationFile() returns {DeviceType = 0x14, Characteristics = 0x20010}

fhandler_procsys::exists(...):
...
  status = NtOpenFile (&h, READ_CONTROL | FILE_READ_ATTRIBUTES, &attr, &io,
                  FILE_SHARE_VALID_FLAGS, FILE_OPEN_FOR_BACKUP_INTENT);
...
  if (NT_SUCCESS (status))
    {
      FILE_FS_DEVICE_INFORMATION ffdi;
...
      /* Check for the device type. */
      status = NtQueryVolumeInformationFile (h, &io, &ffdi, sizeof ffdi,
                         FileFsDeviceInformation);
...
      if (NT_SUCCESS (status))
      {
        if (ffdi.DeviceType == FILE_DEVICE_NETWORK_FILE_SYSTEM)
          file_type = virt_blk;  <<===============
       ...


Thanks,
Christian

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