>>> Erik Mouw [ PGP not available, raw data follows ] > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > On Wed, Apr 11, 2007 at 06:40:59AM +0300, Kari Hurtta wrote: > > >>> Erik Mouw > > > On Tue, Apr 10, 2007 at 06:12:58PM +0300, Kari Hurtta wrote: > > > > (NFSv4 protocol passes usernames around. ) > > > > > > > > ( Documentation talks about id mapper daemon. ) > > > > > > Which runs in userspace because user *names* are a userspace thing. > > > > > > The kernel doesn't care about usernames. The kernel only cares about > > > user IDs. The whole issue about usernames is because we poor humans are > > > much better in remembering names instead of numbers. That's why we have > > > DNS to resolve www.kernelnewbies.org to 74.92.59.67. That's why your > > > parents decided to call you "Kari Hurtta" instead of "6455243". > > > > Well kernel NFSv4 code needs these usernames, because protocol uses > > them. So because NFS server and client are on kernel space, these > > usernames are no longer just userspace thing. > > They still are. It's userspace that resolves them, not the kernel > reading /etc/passwd (or whatever method is used to to map usernames on > UIDs). kernel either does not get numeric uid by reading them from /etc/passwd -- all these data is ultimately passed from userspace -- way or another numeric uid is passed to kernel by login -program (or sshd or whartever) -- that is also userspace > Erik / Kari Hurtta > - -- > They're all fools. Don't worry. Darwin may be slow, but he'll > eventually get them. -- Matthew Lammers in alt.sysadmin.recovery > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.4.6 (GNU/Linux) > > iD8DBQFGHJFz/PlVHJtIto0RAjTEAJ98bEG5UDXKmJdBL19GjcOfbKLKowCdGFB6 > nFVrSAfw6KeROpfLNGnGFxs= > =3oZs > -----END PGP SIGNATURE----- [ End of raw data. ] -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ
