11:27 p.m.
You are hitting one of the areas where our IPv6 support is incomplete. None of the major
project contributors has had IPv6 support as a primary feature support so testing has been
limited.
We really need to clean this all up and properly test...
Frank
-----Original Message-----
From: a(a)colourful.land [mailto:a@colourful.land]
Sent: Monday, March 15, 2021 6:35 PM
To: support(a)lists.nfs-ganesha.org
Subject: [NFS-Ganesha-Support] How to bind to ipv6 address?
Hello new Genasha user here, using it under Ubuntu for serving NFS4.
Problem:
========
If I configure ganesha to bind to ipv4 address it serves NFS4 alright:
NFS_CORE_PARAM {
Protocols = 4;
Bind_addr = 192.168.0.47;
}
However if I bind it to the IPv6 address on the same Ethernet interface, the
dæmon fails to start:
NFS_CORE_PARAM {
Protocols = 4;
Bind_addr = fe80::39a5:1385:634b:cb87;
}
The error is:
Cannot bind NFS udp6 socket, error 22 (Invalid argument)
Full error log at the end of the mail.
Attempts to solve:
==================
Since the error indicates a problem in binding NFS, I thought to try 9P just to see
if the problem is NFS-specific. So I changed the configuration to:
NFS_CORE_PARAM {
Protocols = 9P;
Bind_addr = fe80::39a5:1385:634b:cb87;
}
And the dæmon starts successfully without error, however, it was bound to
*:564
Result is that other hosts can connect to port 564 using IPv4 address, not what I
thought Bind_addr does. I suspect there is a bug in this behaviour.
Full Error Log (with NFS4)
==========================
16/03/2021 12:21:10 : epoch 60500806 : vnaeli-ga990fxaud5 : ganesha.nfsd-
5836[main] main :MAIN :EVENT :ganesha.nfsd Starting: Ganesha Version 3.0.3
16/03/2021 12:21:10 : epoch 60500806 : vnaeli-ga990fxaud5 : ganesha.nfsd-
5842[main] nfs_set_param_from_conf :NFS STARTUP :EVENT :Configuration file
successfully parsed
16/03/2021 12:21:10 : epoch 60500806 : vnaeli-ga990fxaud5 : ganesha.nfsd-
5842[main] init_server_pkgs :NFS STARTUP :EVENT :Initializing ID Mapper.
16/03/2021 12:21:10 : epoch 60500806 : vnaeli-ga990fxaud5 : ganesha.nfsd-
5842[main] init_server_pkgs :NFS STARTUP :EVENT :ID Mapper successfully
initialized.
16/03/2021 12:21:10 : epoch 60500806 : vnaeli-ga990fxaud5 : ganesha.nfsd-
5842[main] nfs_start_grace :STATE :EVENT :NFS Server Now IN GRACE, duration
90
16/03/2021 12:21:10 : epoch 60500806 : vnaeli-ga990fxaud5 : ganesha.nfsd-
5842[main] lower_my_caps :NFS STARTUP :EVENT :CAP_SYS_RESOURCE was
successfully removed for proper quota management in FSAL
16/03/2021 12:21:10 : epoch 60500806 : vnaeli-ga990fxaud5 : ganesha.nfsd-
5842[main] lower_my_caps :NFS STARTUP :EVENT :currenty set capabilities are:
=ep cap_sys_resource-ep
16/03/2021 12:21:10 : epoch 60500806 : vnaeli-ga990fxaud5 : ganesha.nfsd-
5842[main] Bind_sockets_V6 :DISP :WARN :Cannot bind NFS udp6 socket, error
22 (Invalid argument)
16/03/2021 12:21:10 : epoch 60500806 : vnaeli-ga990fxaud5 : ganesha.nfsd-
5842[main] Bind_sockets :DISP :FATAL :Error binding to V6 interface. Cannot
continue.