DBus AUTH Protocol

[Patrick Davis]

Here's my problem. I'm trying to get an Application on one computer to
connect to the System Bus of another computer. I've added the following
line to the system.conf file.

<listen>tcp:host=192.168.103.9,port=1270</listen>

On the other computer, I try to connect to host 192.168.103.9, port 1270
in dbus using dbus_bus_get(), and this call always succeeds. But when I
call dbus_bus_register(), I see the following transaction in Wireshark.

AUTH EXTERNAL 31303030
REJECTED EXTERNAL DBUS_COOKIE_SHA1
AUTH DBUS_COOKIE_SHA1 6313430306d
REJECTED EXTERNAL DBUS_COOKIE_SHA1


And then the client quits trying to connect. The part I don't
particularly understand is that in the system.conf file, EXTERNAL is the
only authentication method listed. DBUS_COOKIE_SHA1 isn't, and when I
explicitly add it to the system bus it causes other applications to
fail. If I remove the <AUTH>EXTERNAL</AUTH> line from the system.conf,
enabling all authentication protocols to be used, I still see the same
transaction in Wireshark.

So my question is this. What other AUTH protocols are available for
DBUS, and how do I use them? I know others are available but there is no
documentation anywhere, or at least that I've found, on what they are or
how they work. Or is there something I can do to make EXTERNAL or
DBUS_COOKIE_SHA1 work with the current setup?

Thank you for your time.
Patrick Davis