mod_vroot changes interpretation of <Directory> paths

[Castaglia]

Assume you have the following in your proftpd.conf:

DefaultRoot ~
VRootEngine on

<Directory /full/path/to/dir>
  ...
</Directory>

With this configuration, the <Directory> configuration directives will never be applied. This happens because of how mod_vroot changes the handling/construction of paths within the core proftpd engine.

Currently, with this configuration, the workaround would be to change the <Directory> path to not be the absolute path, but instead be relative to the chrooted path. That is, for the above config, if the DefaultRoot ~ caused the user to be chrooted to /full/path, then for the <Directory> section to work, it would have to look like:

<Directory /to/dir>
  ...
</Directory>

which is non-obvious (and does not work across multiple varied DefaultRoot directories).

[qwrty-ftw]

Hello @Castaglia

I tried this workaround, but I think I miss something, because it seems to work to some directory but not for all...

Here my proftpd.conf:

<IfModule mod_vroot.c>
    VRootEngine on
    DefaultRoot /mnt/volume1
    VRootAlias /home/%u /%u
    VRootLog /var/log/proftpd/vroot.log
</IfModule>

Directory's rules folder (I put the relative path like you said instead of absolute path /mnt/volume1/tmp or /mnt/volume1/one_drive in this example):

<Directory /tmp>
HideNoAccess on
<Limit ALL>
DenyUser !qwrty
IgnoreHidden on
</Limit>
</Directory>

<Directory /one_drive>
HideNoAccess on
<Limit ALL>
DenyUser !qwrty
IgnoreHidden on
</Limit>
</Directory>

When my user qwrty connect to the FTP, he can see tmp folder but not the one_drive one ?
It happens on different folder.
But when another user connect to the FTP he can't see this tmp folder neither one_drive one.
qwrty should be able to see both folder (it works great when vroot engine is off)

I can't figure out what is the issue ?
ProFTPD Version 1.3.6

I want to use vroot alias to create a alias from the home directory of the connected user to the chrooted folder, the command line above work great, but all my directory directive are bypass, even if I use the relative path.

Without vroot, everything works great with absolute path.

Thank you !