Redirector and CMD.exe: cd doesn't work

NTFSD
1

I have a mini-redirector prototype that I’m currently working
on. Currently, I have the QueryDirectory() function working
in most cases. I can sucessfully browse through directories
in explorer.

But… here is the tricky part. From cmd.exe, if I try to
cd into a subdirectory of the drive root, I get an error:
‘The directory name is invalid.’

And if I do dir t:\svn-repo, for example, I get a listing
as if I had done dir t:\svn-repo* instead of the listing
of the contents of svn-repo.

Does anyone have any clue what part of this I’m messing up?

My redirector doesn’t have the ability to return short names…
(I set ShortNameLength = 0, and zero out ShortName.)
Does cmd require the short names?

Also, when should I be setting FILE_ATTRIBUTE_DIRECTORY? There
is a comment in ntifs.h about this being for DOS and not being
a valid NT flag…

Thanks,

Joseph

2

When you use FileMon to watch, what errors do you see returned (if any)?

Regards,

Tony

Tony Mason
Consulting Partner
OSR Open Systems Resources, Inc.
http://www.osr.com

Looking forward to seeing you at the Next OSR File Systems Class October
18, 2004 in Silicon Valley!

-----Original Message-----
From: xxxxx@lists.osr.com
[mailto:xxxxx@lists.osr.com] On Behalf Of Joseph Galbraith
Sent: Tuesday, July 13, 2004 11:31 AM
To: ntfsd redirect
Subject: [ntfsd] Redirector and CMD.exe: cd doesn’t work

I have a mini-redirector prototype that I’m currently working
on. Currently, I have the QueryDirectory() function working
in most cases. I can sucessfully browse through directories
in explorer.

But… here is the tricky part. From cmd.exe, if I try to
cd into a subdirectory of the drive root, I get an error:
‘The directory name is invalid.’

And if I do dir t:\svn-repo, for example, I get a listing
as if I had done dir t:\svn-repo* instead of the listing
of the contents of svn-repo.

Does anyone have any clue what part of this I’m messing up?

My redirector doesn’t have the ability to return short names…
(I set ShortNameLength = 0, and zero out ShortName.)
Does cmd require the short names?

Also, when should I be setting FILE_ATTRIBUTE_DIRECTORY? There
is a comment in ntifs.h about this being for DOS and not being
a valid NT flag…

Thanks,

Joseph

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

You are currently subscribed to ntfsd as: xxxxx@osr.com
To unsubscribe send a blank email to xxxxx@lists.osr.com

3

Set FILE_ATTRIBUTE_DIRECTORY. If the redir does this - it works.

Maxim Shatskih, Windows DDK MVP
StorageCraft Corporation
xxxxx@storagecraft.com
http://www.storagecraft.com

----- Original Message -----
From: “Joseph Galbraith”
To: “Windows File Systems Devs Interest List”
Sent: Tuesday, July 13, 2004 7:31 PM
Subject: [ntfsd] Redirector and CMD.exe: cd doesn’t work

> I have a mini-redirector prototype that I’m currently working
> on. Currently, I have the QueryDirectory() function working
> in most cases. I can sucessfully browse through directories
> in explorer.
>
> But… here is the tricky part. From cmd.exe, if I try to
> cd into a subdirectory of the drive root, I get an error:
> ‘The directory name is invalid.’
>
> And if I do dir t:\svn-repo, for example, I get a listing
> as if I had done dir t:\svn-repo* instead of the listing
> of the contents of svn-repo.
>
> Does anyone have any clue what part of this I’m messing up?
>
> My redirector doesn’t have the ability to return short names…
> (I set ShortNameLength = 0, and zero out ShortName.)
> Does cmd require the short names?
>
> Also, when should I be setting FILE_ATTRIBUTE_DIRECTORY? There
> is a comment in ntifs.h about this being for DOS and not being
> a valid NT flag…
>
> Thanks,
>
> Joseph
>
> —
> Questions? First check the IFS FAQ at
https://www.osronline.com/article.cfm?id=17
>
> You are currently subscribed to ntfsd as: xxxxx@storagecraft.com
> To unsubscribe send a blank email to xxxxx@lists.osr.com

4

Maxim S. Shatskih wrote:

Set FILE_ATTRIBUTE_DIRECTORY. If the redir does this - it works.

Okay… that is what I’m currently doing…
still have the problems with CMD.exe though.

  • Joseph

----- Original Message -----
From: “Joseph Galbraith”
> To: “Windows File Systems Devs Interest List”
> Sent: Tuesday, July 13, 2004 7:31 PM
> Subject: [ntfsd] Redirector and CMD.exe: cd doesn’t work
>
>
>
>>I have a mini-redirector prototype that I’m currently working
>>on. Currently, I have the QueryDirectory() function working
>>in most cases. I can sucessfully browse through directories
>>in explorer.
>>
>>But… here is the tricky part. From cmd.exe, if I try to
>>cd into a subdirectory of the drive root, I get an error:
>>‘The directory name is invalid.’
>>
>>And if I do dir t:\svn-repo, for example, I get a listing
>>as if I had done dir t:\svn-repo* instead of the listing
>>of the contents of svn-repo.
>>
>>Does anyone have any clue what part of this I’m messing up?
>>
>>My redirector doesn’t have the ability to return short names…
>>(I set ShortNameLength = 0, and zero out ShortName.)
>>Does cmd require the short names?
>>
>>Also, when should I be setting FILE_ATTRIBUTE_DIRECTORY? There
>>is a comment in ntifs.h about this being for DOS and not being
>>a valid NT flag…
>>
>>Thanks,
>>
>>Joseph
>>
>>—
>>Questions? First check the IFS FAQ at
>
> https://www.osronline.com/article.cfm?id=17
>
>>You are currently subscribed to ntfsd as: xxxxx@storagecraft.com
>>To unsubscribe send a blank email to xxxxx@lists.osr.com
>
>
>
> —
> Questions? First check the IFS FAQ at https://www.osronline.com/article.cfm?id=17
>
> You are currently subscribed to ntfsd as: xxxxx@vandyke.com
> To unsubscribe send a blank email to xxxxx@lists.osr.com
>

5

Okay… I’m stumped. I’ve got my redirector on
drive T: via net use t: \nulsvr\share (I started
with the nulmrx sample.)

However, FileMon doesn’t show that drive as a volume
on the Volumes menu.

Am I missing some registration or something?

Sorry for the slew of newbie questions…

Thanks,

Joseph

Tony Mason wrote:

When you use FileMon to watch, what errors do you see returned (if any)?

Regards,

Tony

Tony Mason
Consulting Partner
OSR Open Systems Resources, Inc.
http://www.osr.com

Looking forward to seeing you at the Next OSR File Systems Class October
18, 2004 in Silicon Valley!

-----Original Message-----
From: xxxxx@lists.osr.com
[mailto:xxxxx@lists.osr.com] On Behalf Of Joseph Galbraith
Sent: Tuesday, July 13, 2004 11:31 AM
To: ntfsd redirect
Subject: [ntfsd] Redirector and CMD.exe: cd doesn’t work

I have a mini-redirector prototype that I’m currently working
on. Currently, I have the QueryDirectory() function working
in most cases. I can sucessfully browse through directories
in explorer.

But… here is the tricky part. From cmd.exe, if I try to
cd into a subdirectory of the drive root, I get an error:
‘The directory name is invalid.’

And if I do dir t:\svn-repo, for example, I get a listing
as if I had done dir t:\svn-repo* instead of the listing
of the contents of svn-repo.

Does anyone have any clue what part of this I’m messing up?

My redirector doesn’t have the ability to return short names…
(I set ShortNameLength = 0, and zero out ShortName.)
Does cmd require the short names?

Also, when should I be setting FILE_ATTRIBUTE_DIRECTORY? There
is a comment in ntifs.h about this being for DOS and not being
a valid NT flag…

Thanks,

Joseph

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

You are currently subscribed to ntfsd as: xxxxx@osr.com
To unsubscribe send a blank email to xxxxx@lists.osr.com

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

You are currently subscribed to ntfsd as: xxxxx@vandyke.com
To unsubscribe send a blank email to xxxxx@lists.osr.com