STATUS_CONNECTION_DISCONNECTED

NTFSD
1

in my office, apps are stored on file servers and users map the network
share to their PCs and then run the apps directly from the network share.

with my encryption filter installed, users are getting the
STATUS_CONNECTION_DISCONNECTED error occasionally, and it worsens if XP’s
Internet Connection Firewall is enabled. what could be the cause?

my encryption filter changes all remote i/o to non cached, and uses a header
to store info.

Ampsi

2

> with my encryption filter installed, users are getting the

STATUS_CONNECTION_DISCONNECTED error occasionally, and it worsens if XP’s Internet
Connection Firewall is enabled. what could be the cause?

My observation with ICF for network connections (i.e. non internet
connections!) was that it renders them useless (almost).

my encryption filter changes all remote i/o to non cached, and uses a header to
store info.

I’m surprised you didn’t get a system hang yet, and that it works. Have you
tried this on Windows 2000? (do it) (Just to make sure I understand: you encrypt
outgoing network traffic (i.e. IRP_MN_MDL IRPs) and decrypt incoming network traffic
(coming via UNC path names?))

–
Kind regards, Dejan M. MVP for DDK
http://www.alfasp.com E-mail: xxxxx@alfasp.com
Alfa Transparent File Encryptor - Transparent file encryption services.
Alfa File Protector - File protection and hiding library for Win32 developers.
Alfa File Monitor - File monitoring library for Win32 developers.

3

oops… are you asking if my filter is a network filter? mine is a file
system filter…

my filter intercepts all read/write and change all non paging read/write to
nocache.

will this change cause the STATUS_CONNECTION_DISCONNECTED error?

actually users usually encounter this if they have opened a number of files
from the network shares… so i am wondering if the error is a genuine one
due to network load.

Ampsi

----- Original Message -----
From: “Dejan Maksimovic”
To: “Windows File Systems Devs Interest List”
Sent: Thursday, May 20, 2004 19:24
Subject: Re: [ntfsd] STATUS_CONNECTION_DISCONNECTED

> with my encryption filter installed, users are getting the
> STATUS_CONNECTION_DISCONNECTED error occasionally, and it worsens if XP’s
Internet
> Connection Firewall is enabled. what could be the cause?

My observation with ICF for network connections (i.e. non internet
connections!) was that it renders them useless (almost).

> my encryption filter changes all remote i/o to non cached, and uses a
header to
> store info.

I’m surprised you didn’t get a system hang yet, and that it works.
Have you
tried this on Windows 2000? (do it) (Just to make sure I understand: you
encrypt
outgoing network traffic (i.e. IRP_MN_MDL IRPs) and decrypt incoming network
traffic
(coming via UNC path names?))

–
Kind regards, Dejan M. MVP for DDK
http://www.alfasp.com E-mail: xxxxx@alfasp.com
Alfa Transparent File Encryptor - Transparent file encryption services.
Alfa File Protector - File protection and hiding library for Win32
developers.
Alfa File Monitor - File monitoring library for Win32 developers.

—
Questions? First check the IFS FAQ at
https://www.osronline.com/article.cfm?id=17

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