On Sat, 2002-08-31 at 13:30, Jean-Eric Cuendet wrote:
> Hi,
> I want to develop a filesystem driver. It will be able to access SMB
> shares without mountnig.
> I'll do a daemon that use libsmbclient from Samba 3.0 that do all the
> dirty stuff (getting the available domains, authenticating, getting
> files, etc...) and a device driver that will be a filesystem driver. The
> driver should communicate with the daemon to ask him about shares,
> machines, domains, etc...
People who reinvent the wheel usually end up making it square.
>
> The idea is:
> - the daemon should be started by "/etc/init.d/browser start" at beginning
> - The daemon loads the driver into the kernel
> - The daemon then mounts the filesystem on /smb using the filesystem
> provided by the driver
> - The driver waits for file requests on /smb to serve them
> The hierarchy will be :
>
> /smb --|-- WG1 --|-- Machine1 --|-- Share1
> | | |-- Share2
> | |-- Machine2 --|-- Share1
> | |-- Share2
> | |-- Share3
> |
> |-- WG2 --|-- Machine3 --|-- Share1
> |-- DOM1 --|-- Machine4 --|-- etc...
> |-- DOM2 --|-- Machine5
>
> Then the user access /smb/WG2/Machine38/Share12/Dir1/File2
> Cool, no?
>
> The authentication is done externally from the kernel, by a userland
> process or PAM (a kerberos ticket is gotten from the Domain controller
> or Samba PDC). Then the daemon uses that info to authenticate in the
> domain. If no auth info is available, then it's authenticated as Guest.
>
> My question:
> what is the best/easy way to make a kernel driver communicate with
> userland? Is it via UNIX socket? Or ioctl? Shared memory? Else?
>
> Thanks for any idea.
> -jec
>
>
>
> -
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