I am attempting to port some of my custom apps from a Windows environment to a Linux environment. One of these apps parses NTFS permissions from folders on a Windows file server to a SQL database.
In Windows I used the cacls to pull out the NTFS permissions, and parse them into a database to track user folder access permissions. But in Linux I am not so sure how to go about doing this.

I am able to mount the Windows share with the ntfs-3g (CIFS), but I do not know how to view the NTFS permissions. I am able to do ls -l and pull out the *nix permissions, but that doesn't tell me the NTFS permissions.
I am pretty sure those permissions still have to exist as they are part of the files and folders. (Unless they are part of the file system itself, but even then there would have to be pointers, but I doubt that NTFS is that inefficient). Or maybe there is a translation that is done per file for the permissions?

So my question is how do I read the NTFS permissions from *nix? Is it stored in an ADS? If it is how do I identify the ADS that it is stored in? Is it stored in the file itself? If so is it stored in the same place on all files, and can I pull just that info (bit stream) from the file?
Or am I missing a simple command that tells me that info?
If it is stored as a SID or a GUID that is no problem, as I can just translate them from Active Diretory.

My goal is to just read the permissions not to alter them.

Any help would be greatly appreciated. Also if anyone is curious, I am coding in Python on TinyCore.

ntfs dose NOT support file permissions
so that right there is your problem in trying to read them
there are non to read .

now as a security measure almost every linux OS mounts a windows NTFS partition as read ONLY by default.

change the read only to a read / write mount

most likely in your fstab file but you do not say HOW you are mounting it ?

Do you mean this?
http://www.mcmcse.com/microsoft/guid...missions.shtml
If so the man page talks about that
http://linux.die.net/man/8/ntfs-3g

Thank you both for your responses.

John VV, NTFS does support file level permissions, and enforces them. Or at least it does in the Windows environment. I know they mean close to nothing in the *nix environment.
As for read / write, I am able to do that just fine, and the mount command that I am using is:
mount -t cifs \\\\fileserver\\folder /mnt/fs -o username=Company\\jdoe

teckk, your links describe parts of what I would like to do. Your first link to the mcmcse lists out the permissions and what they mean. This is actually what I want to view. I want to be able to see those permissions, not abide by them, in *nix. For example, I would like to be able to see that Company\\jdoe has read access to /mnt/fs/test.txt or that Company\\Administrator has full control over /mnt/fs/it/

Just a few minutes after I posted my question I came up with a test to see if file permissions were stored at the file level. I took a file that I new it's exact size (1,888 bytes) and then I added around 30 different users and groups to it's NTFS permissions (in Windows). I then checked the file size again and it is still 1,888 bytes in size, I checked the file size in both Windows and *nix. So that leads me to believe that the files just have pointers on the File System that determine the permissions. So at this point, it seems that I will be unable to check file permissions from a *nix server without running a Windows VM.

I will attempt to script in a VM of Windows XP, to run my permission checks. Unless anyone can show me something that I am missing.

those group permissions are in the system registry and are not part of the ntfs file format

it is an added on latter feature

you change the ntfs read, write,and groups in mounting

Certainly in *nix the meta-data eg name/owner/grp/perms etc is stored in the dir file/inode; the actual 'disk-file' is just data.
https://en.wikipedia.org/wiki/Inode