I got a report of a regression in recent kernels. Windows 2012 servers support v3 and v4.1. They also return a list of authflavors that starts with AUTH_GSS flavors and ends with AUTH_SYS. Since commit 4580a92 (NFS: Use server-recommended security flavor by default (NFSv3)) mounting this server with nfsv3 fails unless you specify sec=sys. I can replicate the problem with a Linux NFS server by exporing a filesystem with "sec=krb5:sys". This patchset overhauls the NFSv3 auth code to try each authflavor in the list provided by the server in the order that it specified them. With this, I'm again able to mount the server without needing any special mount options. Thanks to Chuck Lever for suggestions thus far... Jeff Layton (3): nfs: refactor "need_mount" code out of nfs_try_mount nfs: move server_authlist into nfs_try_mount_request nfs: have NFSv3 try server-specified auth flavors in turn fs/nfs/super.c | 182 ++++++++++++++++++++++++++++++++------------------------- 1 file changed, 103 insertions(+), 79 deletions(-) -- 1.8.1.4 -- 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
