Re: [PATCH -V7 08/26] vfs: Add new file and directory create permission flags

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Wed, 19 Oct 2011 12:42:16 -0400, "J. Bruce Fields" <bfields@xxxxxxxxxxxx> wrote:
> On Tue, Oct 18, 2011 at 09:02:43PM +0530, Aneesh Kumar K.V wrote:
> > From: Andreas Gruenbacher <agruen@xxxxxxxxxx>
> > 
> > Some permission models distinguish between the permission to create a
> > non-directory and a directory.  Pass this information down to
> > inode_permission() as mask flags
> ...
> > diff --git a/include/linux/fs.h b/include/linux/fs.h
> > index f3ebf86..60361c6 100644
> > --- a/include/linux/fs.h
> > +++ b/include/linux/fs.h
> > @@ -67,6 +67,8 @@ struct inodes_stat_t {
> >  #define MAY_CHDIR		0x00000040
> >  /* called from RCU mode, don't block */
> >  #define MAY_NOT_BLOCK		0x00000080
> > +#define MAY_CREATE_FILE		0x00000100
> > +#define MAY_CREATE_DIR		0x00000200
> 
> Hm, are the flags in fs/nfsd/vfs.h going to need fixing up?
> 
> Looking at the nfsd code....  No, I guess it's OK, nfsd does
> 
> 	err = inode_permission(inode, acc & (MAY_READ|MAY_WRITE|MAY_EXEC));
> 

nfsd bits need fixing once nfs starts doing richacl permission check.
The changes I did can be found at
https://github.com/kvaneesh/linux/commits/richacl-fullset/


> So we can wait to fix up any collisions until we need to pass these
> extra bits.
> 

Yes. And that we will do once we get the VFS and local file system
changes upstream.

-aneesh

--
To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [Linux Ext4 Filesystem]     [Union Filesystem]     [Filesystem Testing]     [Ceph Users]     [Ecryptfs]     [AutoFS]     [Kernel Newbies]     [Share Photos]     [Security]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux Cachefs]     [Reiser Filesystem]     [Linux RAID]     [Samba]     [Device Mapper]     [CEPH Development]
  Powered by Linux