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Hi!
I believe it would be possible to set up an FTP Virtual Server with
Tunneling. In order to do that, the ip_masq_ftp.c code should be
partially reimplemented to work only on upstream part of the TCP
connection.
I have been playing arround with the kernel source code. To start with,
I have put in some printk calls into the ip_masq_ftp.c. It appears, the
ip_masquerading modules do not get used by the tunneling VS patch.
Unlike the original ip_masq_new(), the VS' ip_masq_new_pfvs() function
does not call the ip_masq_bind_app(), which is required in order to use
the module. Therefore, when the ip_fw_demasquerade() calls the
ip_masq_app_pkt_in() function, the later does not find any masq_app
entry in the masq structure and simply returns.
Did I get it right? Would it help to add an appropriate call to
ip_masq_bind_app() into the ip_masq_new_pfvs() or am I forwarding a more
complicated problem.
Cheers,
Peter
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