Created attachment 191364 [details] Add partial support for BindConnectiontoSession to the NFSv4.1 server The VMware ESX NFSv4.1 client malfunctions because it can't perform the BindConnectiontoSession operation. The patch adds enough support for this operation to make the ESX client function. It is incomplete, but since other clients do not use BindConnectiontoSession for the TCP connections, I think it is adequate for now.
This patch needs to be committed in April.
Created attachment 192534 [details] Add partial support for BindConnectiontoSession to the NFSv4.1 server Here is an updated version of the BindConnectiontoSession patch that attempts to maintain the back channel more correctly, instead of assuming any TCP connection can be used. It maintains the old "not quite correct case of binding a backchannel by default" until it sees a BindConnectiontoSession operation from a client.
Created attachment 192666 [details] Add partial support for BindConnectiontoSession to the NFSv4.1 server Here is an updated version of the BindConnectiontoSession patch. The main change is making the flag that indicates the client has done a BindConnectiontoSession operation a ClientID flag instead of per session. I think this patch is now in a form adequate for head/current, but I don't have a client that does BindConnectiontoSession to test with, so I must depend on testing by others.
This patch has been committed to head as r334492. I forgot to list this PR3 in the log, but will try and remember for the MFC.
A commit references this bug: Author: rmacklem Date: Sat Jul 28 20:29:07 UTC 2018 New revision: 336842 URL: https://svnweb.freebsd.org/changeset/base/336842 Log: MFC: r334492 Add the BindConnectiontoSession operation to the NFSv4.1 server. Under some fairly unusual circumstances, the Linux NFSv4.1 client is doing a BindConnectiontoSession operation for TCP connections. It is also used by the ESXi6.5 NFSv4.1 client. This patch adds this operation to the NFSv4.1 server. PR: 226493 Changes: _U stable/11/ stable/11/sys/fs/nfs/nfs.h stable/11/sys/fs/nfs/nfs_commonsubs.c stable/11/sys/fs/nfs/nfs_var.h stable/11/sys/fs/nfs/nfsproto.h stable/11/sys/fs/nfsserver/nfs_nfsdserv.c stable/11/sys/fs/nfsserver/nfs_nfsdsocket.c stable/11/sys/fs/nfsserver/nfs_nfsdstate.c
A commit references this bug: Author: rmacklem Date: Sat Jul 28 20:38:10 UTC 2018 New revision: 336846 URL: https://svnweb.freebsd.org/changeset/base/336846 Log: MFC: r334492 Add the BindConnectiontoSession operation to the NFSv4.1 server. Under some fairly unusual circumstances, the Linux NFSv4.1 client is doing a BindConnectiontoSession operation for TCP connections. It is also used by the ESXi6.5 NFSv4.1 client. This patch adds this operation to the NFSv4.1 server. PR: 226493 Changes: _U stable/10/ stable/10/sys/fs/nfs/nfs.h stable/10/sys/fs/nfs/nfs_commonsubs.c stable/10/sys/fs/nfs/nfs_var.h stable/10/sys/fs/nfs/nfsproto.h stable/10/sys/fs/nfsserver/nfs_nfsdserv.c stable/10/sys/fs/nfsserver/nfs_nfsdsocket.c stable/10/sys/fs/nfsserver/nfs_nfsdstate.c
A patch adding BindConnectiontoSession has been committed and MFC'd.