While using internal sftp server, need to access files outside chroot

[Raghu Udupa]

Hi,

I need to make a custom code change in sftp-server module to copy the received file outside the chroot-setup.  I am trying to chroot repeatedly to get physical root directory and the copy received file to a directory outside chrooted directory.

The children processes are owned by the sftp-user and so, sftp child process does not have permission to escape out of chroot.

Is there a simple way where I can spawn child processes for sftp so that these processes are owned by root.

I tried to change user to root, but user root is not defined in chroot environment and so, setting setuid and becoming root to chroot is not an option.

Thanks,
Raghu