Package: gdm3
Version: 2.30.2-3
Severity: normal
I'm working on this bug.
Set "net.ipv6.bindv6only = 1", no changes is set to 0.
Setting Debug/Enable=True I found that the call to XdmcpFill fails,
with this line in syslog:
GdmXdmcpDisplayFactory: Could not create XDMCP buffer!
With this patch:
http://tcosproject.org/cgit/gdm3.git/tree/debian/patches/95_xdmcp_fill_fix.patch
XdmcpFill don't fail and remote session continue but all is IPV6:
GdmXdmcpDisplayFactory: Attempting to bind to host :: port 177
GdmXdmcpDisplayFactory: Starting to listen on XDMCP port
GdmXdmcpDisplayFactory: decode_packet: GIOCondition 1
GdmXdmcpDisplayFactory: Received opcode QUERY from client
::8008:7f09:100:0%159346928 : 54488
GdmXdmcpDisplayFactory: Sending WILLING to ::8008:7f09:100:0%159346928
GdmXdmcpDisplayFactory: decode_packet: GIOCondition 1
Address family:2 (inet) hostname:(null) host:(null) port:(null) local:1
loopback:1
Address family:2 (inet) hostname:(null) host:(null) port:(null) local:0
loopback:0
GdmAddress: looking up hostname: thinkpad
family=2 sock_type=1 protocol=6 flags=0x2 canonname=localhost#012
family=2 sock_type=2 protocol=17 flags=0x2 canonname=(null)#012
family=2 sock_type=3 protocol=0 flags=0x2 canonname=(null)#012
family=2 sock_type=1 protocol=6 flags=0x2 canonname=(null)#012
family=2 sock_type=2 protocol=17 flags=0x2 canonname=(null)#012
family=2 sock_type=3 protocol=0 flags=0x2 canonname=(null)#012
family=2 sock_type=1 protocol=6 flags=0x2 canonname=(null)#012
family=2 sock_type=2 protocol=17 flags=0x2 canonname=(null)#012
family=2 sock_type=3 protocol=0 flags=0x2 canonname=(null)#012
Address family:10 (inet6) hostname:(null) host:(null) port:(null) local:0
loopback:0
See here, hostname, host, port are NULL.
(willing repeat many times)
GdmXdmcpDisplayFactory: decode_packet: GIOCondition 1
GdmXdmcpDisplayFactory: Received opcode QUERY from client
::8008:7f09:100:0%159346928 : 54488
GdmXdmcpDisplayFactory: Sending WILLING to ::8008:7f09:100:0%159346928
I try to setup a IPV6toIPV4 tunnel but XDMCP don't work.
Wireshark only show this 2 connections: QUERY , WILLING.
I rebuild package with "--enable-ipv6=no" in debian/rules and works ok:
GdmXdmcpDisplayFactory: Attempting to bind to host 0.0.0.0 port 177
GdmXdmcpDisplayFactory: Starting to listen on XDMCP port
GdmXdmcpDisplayFactory: decode_packet: GIOCondition 1
GdmXdmcpDisplayFactory: Received opcode QUERY from client 192.168.0.3 : 36128
GdmXdmcpDisplayFactory: Sending WILLING to 192.168.0.3
GdmXdmcpDisplayFactory: decode_packet: GIOCondition 1
GdmXdmcpDisplayFactory: Received opcode REQUEST from client 192.168.0.3 : 36128
GdmXdmcpDisplayFactory: Got REQUEST from 192.168.0.3
GdmXdmcpDisplayFactory: xdmcp_pending=0, MaxPending=4, xdmcp_sessions=0,
MaxSessions=16, ManufacturerID=
GdmXdmcpDisplayFactory: display_dispose_check (192.168.0.3:1)
GdmXdmcpDisplayFactory: Creating xdmcp display for 192.168.0.3:1
GdmXdmcpDisplayFactory: Host 192.168.0.3 not found
GdmXdmcpDisplayFactory: Sending authorization key for display 192.168.0.3:1
GdmXdmcpDisplayFactory: cookie len 16
GdmXdmcpDisplayFactory: Sending ACCEPT to 192.168.0.3 with SessionID=1094546431
In this patch:
http://tcosproject.org/cgit/gdm3.git/tree/debian/patches/14_bindv6only.patch
A IPV6 socket is created if ENABLE_IPV6 and IPV6_V6ONLY are defined, but
in config.h.in there is only set/unset ENABLE_IPV6 and never IPV6_V6ONLY.
Where is defined IPV6_V6ONLY ?
I try to add IPV6_V6ONLY in relibtoolize:
http://tcosproject.org/cgit/gdm3.git/tree/debian/patches/90_relibtoolize.patch#n32486
http://tcosproject.org/cgit/gdm3.git/tree/debian/patches/90_relibtoolize.patch#n47612
But don't works.
Something in common/gdm-address.c is wrong converting IPV6 to IPV4.
In LAN networks XDMCP is very used and IPV6 must be optional, and
leave user to enable it, in config file not in a compile flag.
KDM seems to work ok with IPV6 and IPV6_V6ONLY, why not GDM??
Greetings
-- System Information:
Debian Release: squeeze/sid
APT prefers unstable
APT policy: (500, 'unstable')
Architecture: i386 (i686)
Kernel: Linux 2.6.32-5-686 (SMP w/2 CPU cores)
Locale: LANG=es_ES.UTF-8, LC_CTYPE=es_ES.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash
Versions of packages gdm3 depends on:
ii adduser 3.112 add and remove users and groups
ii debconf [debconf-2.0] 1.5.32 Debian configuration management sy
ii gconf2 2.28.1-3 GNOME configuration database syste
ii gnome-session [x-sessio 2.30.0-1 The GNOME Session Manager - GNOME
ii gnome-session-bin 2.30.0-1 The GNOME Session Manager - Minima
ii gnome-terminal [x-termi 2.30.1-1 The GNOME terminal emulator applic
ii kde-window-manager [x-w 4:4.4.4-1 the KDE 4 window manager (KWin)
ii konsole [x-terminal-emu 4:4.4.4-1 X terminal emulator for KDE 4
ii libart-2.0-2 2.3.21-1 Library of functions for 2D graphi
ii libatk1.0-0 1.30.0-1 The ATK accessibility toolkit
ii libattr1 1:2.4.44-1 Extended attribute shared library
ii libaudit0 1.7.13-1+b1 Dynamic library for security audit
ii libbonobo2-0 2.24.3-1 Bonobo CORBA interfaces library
ii libbonoboui2-0 2.24.3-1 The Bonobo UI library
ii libc6 2.11.1-2 Embedded GNU C Library: Shared lib
ii libcairo2 1.8.10-4 The Cairo 2D vector graphics libra
ii libcanberra-gtk0 0.24-1 Gtk+ helper for playing widget eve
ii libcanberra0 0.24-1 a simple abstract interface for pl
ii libdbus-1-3 1.2.24-1 simple interprocess messaging syst
ii libdbus-glib-1-2 0.86-1 simple interprocess messaging syst
ii libdevkit-power-gobject 1:0.9.4-2 abstraction for power management -
ii libfontconfig1 2.8.0-2.1 generic font configuration library
ii libfreetype6 2.3.11-1 FreeType 2 font engine, shared lib
ii libgconf2-4 2.28.1-3 GNOME configuration database syste
ii libglib2.0-0 2.24.1-1 The GLib library of C routines
ii libgnome2-0 2.30.0-1 The GNOME library - runtime files
ii libgnomecanvas2-0 2.30.1-1 A powerful object-oriented display
ii libgtk2.0-0 2.20.1-1 The GTK+ graphical user interface
ii liborbit2 1:2.14.18-0.1 libraries for ORBit2 - a CORBA ORB
ii libpam-modules 1.1.1-3 Pluggable Authentication Modules f
ii libpam-runtime 1.1.1-3 Runtime support for the PAM librar
ii libpam0g 1.1.1-3 Pluggable Authentication Modules l
ii libpanel-applet2-0 2.30.0-2 library for GNOME Panel applets
ii libpango1.0-0 1.28.0-1 Layout and rendering of internatio
ii libpolkit-gobject-1-0 0.96-2 PolicyKit Authorization API
ii libpolkit-gtk-1-0 0.96-2 PolicyKit GTK+ API
ii libpopt0 1.16-1 lib for parsing cmdline parameters
ii librsvg2-common 2.26.3-1 SAX-based renderer library for SVG
ii libselinux1 2.0.94-1 SELinux runtime shared libraries
ii libwrap0 7.6.q-19 Wietse Venema's TCP wrappers libra
ii libx11-6 2:1.3.3-3 X11 client-side library
ii libxau6 1:1.0.5-2 X11 authorisation library
ii libxdmcp6 1:1.0.3-2.1 X11 Display Manager Control Protoc
ii libxklavier16 5.0-2 X Keyboard Extension high-level AP
ii libxml2 2.7.7.dfsg-2 GNOME XML library
ii lsb-base 3.2-23.1 Linux Standard Base 3.2 init scrip
ii metacity [x-window-mana 1:2.30.1-1 lightweight GTK+ window manager
ii policykit-1-gnome 0.96-2 GNOME authentication agent for Pol
ii terminator [x-terminal- 0.93-1 multiple GNOME terminals in one wi
ii tilda [x-terminal-emula 0.09.6-2 terminal emulator with first perso
ii twm [x-window-manager] 1:1.0.4-2 Tab window manager
ii upower 0.9.4-2 abstraction for power management
ii xfce4-session [x-sessio 4.6.2-1 Xfce4 Session Manager
ii xfce4-terminal [x-termi 0.4.5-1 Xfce terminal emulator
ii xfwm4 [x-window-manager 4.6.2-1 window manager of the Xfce project
ii xterm [x-terminal-emula 258-1 X terminal emulator
ii zlib1g 1:1.2.3.4.dfsg-3 compression library - runtime
Versions of packages gdm3 recommends:
pn at-spi <none> (no description available)
ii gnome-icon-theme 2.30.3-1 GNOME Desktop icon theme
ii gnome-power-manager 2.30.1-1 power management tool for the GNOM
ii gnome-settings-daemon 2.30.1-1 daemon handling the GNOME session
ii xnest 2:1.7.7-1 Nested X server
ii xserver-xephyr 2:1.7.7-1 nested X server
ii xserver-xorg 1:7.5+6 the X.Org X server
ii zenity 2.30.0-1 Display graphical dialog boxes fro
Versions of packages gdm3 suggests:
pn gnome-mag <none> (no description available)
pn gnome-orca <none> (no description available)
pn gok <none> (no description available)
ii libpam-gnome-keyring 2.30.1-2 PAM module to unlock the GNOME key
ii metacity 1:2.30.1-1 lightweight GTK+ window manager
-- Configuration Files:
/etc/gdm3/daemon.conf changed:
[daemon]
TimedLoginEnable=false
AutomaticLoginEnable=true
TimedLogin=mario
AutomaticLogin=mario
TimedLoginDelay=30
[security]
DisallowTCP=false
[xdmcp]
Enable=true
DisplaysPerHost=4
HonorIndirect=true
MaxPending=4
MaxSessions=16
MaxWait=30
MaxWaitIndirect=30
PingIntervalSeconds=60
Port=177
[greeter]
[chooser]
Multicast=true
[debug]
Enable=true
-- debconf information:
shared/default-x-display-manager: gdm3
gdm3/daemon_name: /usr/sbin/gdm3
--
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