[jira] [Created] (ARROW-16753) LocalFileSystem cannot list Linux directory recursively when permission to subdirectory contents are denied

["David Rauschenbach (Jira)" <ji...@apache.org>]

David Rauschenbach created ARROW-16753:
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             Summary: LocalFileSystem cannot list Linux directory recursively when permission to subdirectory contents are denied
                 Key: ARROW-16753
                 URL: https://issues.apache.org/jira/browse/ARROW-16753
             Project: Apache Arrow
          Issue Type: Bug
          Components: C++
    Affects Versions: 6.0.1
         Environment: Ubuntu 20.04 LTS
            Reporter: David Rauschenbach


The following code to list my root directory fails:

 
{code:java}
FileSelector file_selector;
file_selector.base_dir = "/";
file_selector.allow_not_found = true;
file_selector.recursive = true;
auto result = fs.GetFileInfo(file_selector);{code}
The result.ok() value returns {+}false{+}, and then result.status().message() returns {+}Cannot list directory '/var/run/wpa_supplicant'{+}. 

An examination of the /run directory (which /var/run symlinks to) shows:

 
{code:java}
$ ls -al /run
drwxr-xr-x 35 root              root  1040 Jun  6 06:11 .
drwxr-xr-x 20 root              root  4096 May 20 12:42 ..
...
drwxr-x---  2 root              root    60 Jun  4 12:14 wpa_supplicant{code}
And then attempting to list this directory reveals:

 
{code:java}
$ ls -al /run/wpa_supplicant/
ls: cannot open directory '/run/wpa_supplicant/': Permission denied{code}
 

As a user of LocalFileSystem, I should be able to list all of the files that I have access to.

 

 



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