Hi, Am I correct that this limitation is only with respect to v40 (that's how I read the comment and the code in fs/nfs/callback.c)? Thanks, Matt ----- "J. Bruce Fields" <bfields@xxxxxxxxxxxx> wrote: > On Wed, Mar 28, 2012 at 11:16:49PM +0000, Myklebust, Trond wrote: > > On Wed, 2012-03-28 at 19:09 -0400, J. Bruce Fields wrote: > > > This is a bandaid. > > > > > > I have a series of patches that actually implement the correct > behavior, > > > but that may not quite be ready for 3.4. > > > > > > --b. > > > > > > commit 2f026867c76171d26f003b211063ff0562097d5e > > > Author: J. Bruce Fields <bfields@xxxxxxxxxx> > > > Date: Wed Mar 28 14:18:16 2012 -0400 > > > > > > nfsd4: use auth_unix unconditionally on backchannel > > > > > > This isn't actually correct, but it works with the Linux > client, and > > > agrees with the behavior we used to have before commit > 80fc015bdfe. > > > > Question: does the Linux client ever send you anything other than > > AUTH_SYS credentials for the csa_sec_parms argument in > CREATE_SESSION? > > Anything other than that would be a bug, since our client doesn't > > actually support RPCSEC_GSS in the callback channel. > > Right, I've never seen anything else, so I think the client's > behaving > as expected. > > But the server needs to be fixed to deal with the range of possible > csa_sec_parms possibilities regardless. > > The only thing I find odd about the client behavior is why it even > bothers with auth_sys when auth_null would work just as well and be > even > slightly simpler. > > --b. > > > > > > Later patches will implement the spec-mandated behavior (which > is to use > > > the security parameters explicitly given by the client in > create_session > > > or backchannel_ctl). > > > > > > > > > -- > > Trond Myklebust > > Linux NFS client maintainer > > > > NetApp > > Trond.Myklebust@xxxxxxxxxx > > www.netapp.com > > > -- > To unsubscribe from this list: send the line "unsubscribe linux-nfs" > in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- Matt Benjamin The Linux Box 206 South Fifth Ave. Suite 150 Ann Arbor, MI 48104 http://linuxbox.com tel. 734-761-4689 fax. 734-769-8938 cel. 734-216-5309 -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
