> > open mode has 4 bits: read, write, append and execute.
>
> I hope "write" and "append" interact nicely, giving 4 choices.
>
> 00 no write
> 01 append only
> 10 overwrite only (no file size change)
> 11 full write, append, truncate, etc.
... that's 1) Wrong 2) I need 4 bits ... that's 16 cho
> You can write lookup so that it always succeeds and returns dummy inode
> without sending anything and do all the work in open & inode operations.
It'd be great if I could. But I can't. First, the inode data are checked by
some vfs functions before driver is called (this being the bigest probl
> Agree, but it will improve behavior. Or speed, rather. Otherwise open would
> take 3(!) roundtrips (instead of two - now lookup can't be get rid of) -
> lookup, permission and open. The protocol can do all three in one request.
> The problem is I can't tell the 3 calls from VFS belong together.
Hi,
> > I'm trying to impelemnt a lightweight network filesystem and ran into
> > trouble implementing lookup, permissions and open.
> >
> > The protocol requires me to specify open mode in it's open command. The
> > open mode has 4 bits: read, write, append and execute. But I can't tell
>
> Th
Mikulas Patocka wrote:
>If you are checking permissions on server, read/execute have no security
>meaning.
This seems a bit too strong. If I try to exec a file that has read
permission enabled but not execute permission, I'd like this to fail.
You can just imagine sysadmins who turn off exec bi
Hi
> I'm trying to impelemnt a lightweight network filesystem and ran into
> trouble implementing lookup, permissions and open.
>
> The protocol requires me to specify open mode in it's open command. The
> open mode has 4 bits: read, write, append and execute. But I can't tell
> execution from r
Hi,
I'm trying to impelemnt a lightweight network filesystem and ran into
trouble implementing lookup, permissions and open.
The protocol requires me to specify open mode in it's open command. The
open mode has 4 bits: read, write, append and execute. But I can't tell
execution from read in file
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