Problem running Samba with IPv4 only network

[Jeremy Allison]

On Fri, Jun 06, 2014 at 01:08:35AM +1000, Amitay Isaacs wrote:
> Hi,
> 
> I am unable to run Samba AD on a kvm guest with only IPv4 network.  Tried
> with 4.0.18 and 4.1.8.
> Samba 4.0.16 worked with only IPv4 network.
> 
> I get following errors:
> 
> [2014/06/05 23:55:20.739512,  0]
> ../source4/smbd/server.c:370(binary_smbd_main)
>   samba version 4.1.8 started.
>   Copyright Andrew Tridgell and the Samba Team 1992-2013
> [2014/06/05 23:55:20.957613,  0]
> ../source4/smbd/server.c:488(binary_smbd_main)
>   samba: using 'standard' process model
> [2014/06/05 23:55:20.977152,  0]
> ../source4/cldap_server/cldap_server.c:122(cldapd_add_socket)
>   Failed to bind to ipv6::::389 - NT_STATUS_INVALID_PARAMETER_MIX
> [2014/06/05 23:55:20.977375,  0]
> ../source4/smbd/service_task.c:35(task_server_terminate)
>   task_server_terminate: [cldapd failed to setup interfaces]
> [2014/06/05 23:55:20.975284,  0]
> ../lib/util/become_daemon.c:136(daemon_ready)
>   STATUS=daemon 'samba' finished starting up and ready to serve
> connectionssamba_terminate: cldapd failed to setup interfaces
> [2014/06/05 23:55:20.990163,  0]
> ../source4/rpc_server/dcerpc_server.c:1708(add_socket_rpc_tcp_iface)
>   service_setup_stream_socket(address=::,port=0) failed -
> NT_STATUS_INVALID_PARAMETER_MIX
> [2014/06/05 23:55:20.990330,  0]
> ../source4/smbd/service_task.c:35(task_server_terminate)
>   task_server_terminate: [Failed to startup dcerpc server task]
> [2014/06/05 23:55:20.991856,  0]
> ../source4/ldap_server/ldap_server.c:821(add_socket)
>   ldapsrv failed to bind to :::389 - NT_STATUS_INVALID_PARAMETER_MIX
> [2014/06/05 23:55:20.992026,  0]
> ../source4/smbd/service_task.c:35(task_server_terminate)
>   task_server_terminate: [Failed to startup ldap server task]
> [2014/06/05 23:55:20.999891,  0] ../source4/kdc/kdc.c:672(kdc_add_socket)
>   Failed to bind to :::88 TCP - NT_STATUS_INVALID_PARAMETER_MIX
> [2014/06/05 23:55:21.000041,  0]
> ../source4/smbd/service_task.c:35(task_server_terminate)
>   task_server_terminate: [kdc failed to setup interfaces]
> [2014/06/05 23:55:21.007175,  0]
> ../source4/dns_server/dns_server.c:629(dns_add_socket)
>   Failed to bind to :::53 TCP - NT_STATUS_INVALID_PARAMETER_MIX
> [2014/06/05 23:55:21.007300,  0]
> ../source4/smbd/service_task.c:35(task_server_terminate)
>   task_server_terminate: [dns failed to setup interfaces]
> [2014/06/06 00:00:15.306622,  0] ../source4/smbd/server.c:121(sig_term)
>   Exiting pid 1961 on SIGTERM
> 
> 
> Is there a magic incantation to make it work again for IPv4 only config?
> Or now we always need IPv6 enabled to run Samba?

Yeah I think it's a bug - right now we're requiring
a successful bind to both :: and 0.0.0.0 if HAVE_IPV6
is detected at configure. Can you try the following
patch (attached). Compiles but is not (yet :-) tested.

Thanks !

Jeremy.
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