Re: [nmap-svn] r24784 - in nmap-exp/weilin/nmap-nd: . libdnet-stripped/include/dnet libdnet-stripped/src libnetutil

[David Fifield <david () bamsoftware com>]

On Sun, Jul 10, 2011 at 05:36:03AM -0700, commit-mailer () insecure org wrote:
> Author: weilin
> Date: Sun Jul 10 05:36:02 2011
> New Revision: 24784
>
> Log:
> nmap.get_interface_info() will give IPv6 address. If no address of global scope is found, it gives a link-local IPv6 
> address.
>
> Modified:
>    nmap-exp/weilin/nmap-nd/libdnet-stripped/include/dnet/intf.h
>    nmap-exp/weilin/nmap-nd/libdnet-stripped/src/intf.c
>    nmap-exp/weilin/nmap-nd/libnetutil/netutil.cc
>    nmap-exp/weilin/nmap-nd/libnetutil/netutil.h
>    nmap-exp/weilin/nmap-nd/nse_dnet.cc
>
> Modified: nmap-exp/weilin/nmap-nd/libdnet-stripped/include/dnet/intf.h
> ==============================================================================
> --- nmap-exp/weilin/nmap-nd/libdnet-stripped/include/dnet/intf.h      (original)
> +++ nmap-exp/weilin/nmap-nd/libdnet-stripped/include/dnet/intf.h      Sun Jul 10 05:36:02 2011
> @@ -23,6 +23,7 @@
>       u_short         intf_flags;                 /* interface flags */
>       u_int           intf_mtu;                   /* interface MTU */
>       struct addr     intf_addr;                  /* interface address */
> +     struct addr     intf_addr6;                 /* interface IPv6 address */
>       struct addr     intf_dst_addr;              /* point-to-point dst */
>       struct addr     intf_link_addr;             /* link-layer address */
>       u_int           intf_alias_num;             /* number of aliases */

Weilin, I think this might be wrong. Unless I'm mistaken, libdnet is
already getting IPv6 addresses for interfaces. You can see them with
"nmap --iflist". I think they are typically stored in the
intf_alias_addrs member.

What might be the problem is that getInterfaceByName returns only the
first matching interface, which only has a single (usually IPv4)
address.

The problem might just be that the NSE code doesn't look far enough into
the alias list. If you call nmap.list_interfaces, do you see the
interfaces with IPv6 addresses?

David Fifield
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