Messages in this thread | | | Subject | Re: Security issues with local filesystem caching | From | Trond Myklebust <> | Date | Thu, 02 Nov 2006 16:24:27 -0500 |
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On Thu, 2006-11-02 at 20:38 +0000, David Howells wrote: > Trond Myklebust <trond.myklebust@fys.uio.no> wrote: > > > Just why are you doing all this? Why do we need a back-end that requires > > all this extra client-side security infrastructure in order to work? > > Well, both Christoph and Al are of the opinion that I should be using > vfs_mkdir() and co rather than bypassing the security and calling inode ops > directly.
...but why are you needing to call vfs_mkdir? I thought the standard cachefs backend just uses a pool of files, rather like the original AFS cache did. Are you trying to mirror the layout and the permissions of the NFS filesystem? That is a lot more work than it is worth...
> Also I should be setting security labels on the files I create.
To what end? These files shouldn't need to be made visible to userland at all.
Cheers, Trond
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