samba - Feb 2010 - Name to address resolution: A and AAAA records

Hi,  I'm installing a few linux clients and one server with samba. The
network addresses are IPv6 in the .local domain.

The avahi-daemon implements de MDSN resolver.

A standard "ping6 -Ieth0 servername.local" generates a
"AAAA" query packet
which is correctly responded by the servername.local machine and the ping
works fine.

"smbclient -L servername.local" generates a "A" query
packet, which de
avahi-daemon can't respond because (I think) it's a IPv4 query over a
IPv6
channel, and there is not IPv4 address to answer.

Shouldn't smbclient query for a "AAAA" record over a IPv6 channel?

Please, tell me if you believe this question is not for this list.

Best regards,
Ernesto Silva.

On Wed, Feb 10, 2010 at 08:42:48PM -0200, Ernesto Silva
wrote:
> Hi,  I'm installing a few linux clients and one server with samba. The
> network addresses are IPv6 in the .local domain.
> 
> The avahi-daemon implements de MDSN resolver.
> 
> A standard "ping6 -Ieth0 servername.local" generates a
"AAAA" query packet
> which is correctly responded by the servername.local machine and the ping
> works fine.
> 
> "smbclient -L servername.local" generates a "A" query
packet, which de
> avahi-daemon can't respond because (I think) it's a IPv4 query over
a IPv6
> channel, and there is not IPv4 address to answer.
> 
> Shouldn't smbclient query for a "AAAA" record over a IPv6
channel?
Modern smbclients just does a getaddrinfo() call, we don't
explicitly ask for IPv4 or IPv6. What we get back is what
we get back.

What version of Samba on what platform ?

Jeremy.

On Wed, Feb 10, 2010 at 09:44:30PM -0200, Ernesto Silva
wrote:
> Jeremy, I've downloaded the source of 3.3.2 version, the official one,
not the
> one used by Ubuntu.
> I've taken a look at the following:
> 
> file: source/libsmb/namequery.c
> function: static NTSTATUS resolve_hosts(const char *name, int name_type,
struct
> ip_service **return_iplist, int *return_count)
> 
> Apparently resolve_hosts funcion can manage IPv6 addresses, it depends on
> HAVE_IPV6 macro definition.
> My samba daemon sais that the compilation option HAVE_IPV6 is defined (smbd
> -b).
Then it's the fault of your resolver.

(Keeping the CC:on list so I'm not a private support channel).

Jeremy.