polkit fails to authenticate on dbus

[karu.pruun]

Hello

I am having troubles with dbus starting polkitd on my system
(DragonFlyBSD): polkitd fails to start since dbus rejects the three
attempts to authenticate via three different mechanisms available on
dbus (EXTERNAL, DBUS_COOKIE_SHA1, ANONYMOUS). I compared with FreeBSD
box which has (or at least should have) an identical setup for dbus
and where polkitd starts fine. The successful authentication with dbus
on FreeBSD looks like this (it's a ktrace output; the sendto goes from
polkit to dbus; receivefrom is from dbus to polkit):

---FreeBSD (successful)---
  1579 polkitd  CALL  sendto(0x5,0x803076280,0x12,0x20000<MSG_NOSIGNAL>,0,0)
  1579 polkitd  GIO   fd 5 wrote 18 bytes
       "AUTH EXTERNAL 30\r
       "
  1579 polkitd  RET   sendto 18/0x12
  . . .

  1579 polkitd  CALL  recvfrom(0x5,0x80310f000,0x1000,0,0,0)
  1579 polkitd  GIO   fd 5 read 37 bytes
       "OK 42dd72d3f9cfe49615fb1f2154aabce1\r
       "
  1579 polkitd  RET   recvfrom 37/0x25
--- ---

whereas the unsuccessful DragonFly is this:

---DragonFly---
16116:1     0 polkitd  0.000006 CALL
sendto(0x5,0x800740280,0x24,MSG_NOSIGNAL,0,0)
16116:1     0 polkitd  0.000010 GIO   fd 5 wrote 36 bytes
       "AUTH EXTERNAL 34323934393637323935\r
       "
16116:1     0 polkitd  0.000006 RET   sendto 36/0x24
. . .

16116:1     0 polkitd  0.000520 CALL  recvfrom(0x5,0x800735000,0x1000,0,0,0)
16116:1     0 polkitd  0.000013 GIO   fd 5 read 46 bytes
       "REJECTED EXTERNAL DBUS_COOKIE_SHA1 ANONYMOUS\r
       "
16116:1     0 polkitd  0.000005 RET   recvfrom 46/0x2e
--- ---

Can anyone tell me what does the argument ('30' in the FreeBSD case
and '34323934393637323935' in the DragonFly) in the EXTERNAL
authentication protocol of dbus stand for?

Thanks

Peeter