From: Michael Prokop <mika@grml.org>
Date: Sat, 12 Dec 2009 10:36:53 +0000 (+0100)
Subject: Add VNC support. [Closes: issue781]
X-Git-Tag: v0.9.2~1
X-Git-Url: http://git.grml.org/?p=grml-autoconfig.git;a=commitdiff_plain;h=394341318bdafc64bc63ccdc2ed1be53af91c5b4

Add VNC support. [Closes: issue781]
---

diff --git a/autoconfig b/autoconfig
index 2cfb247..b527425 100644
--- a/autoconfig
+++ b/autoconfig
@@ -61,7 +61,7 @@ CONFIG_BLANKING='yes'         # check for bootoption noblank to disable console
 CONFIG_BLINDSOUND='yes'       # play 'beep' and play welcome message
 CONFIG_BLIND='yes'            # check for blind option or brltty
 CONFIG_CDROM_PERM='yes'       # for burning on IDE-CD-Roms, k3b (and others) check for special permissions
-CONFIG_CONFIG='yes'	      # do we want config unpacking to work?
+CONFIG_CONFIG='yes'           # do we want config unpacking to work?
 CONFIG_CONSOLE='yes'          # activate mgetty when using console=... as bootparam
 CONFIG_CREATE_MNT_DIRS='no'   # create /mnt-directories
 CONFIG_DEBOOTSTRAP='yes'      # support automatic installation of Debian via grml-deboostrap
@@ -74,7 +74,7 @@ CONFIG_DISTRI='yes'           # support some customization via bootoption distri
 CONFIG_DMA='yes'              # Enable DMA for all IDE drives
 CONFIG_EXTRACT='yes'          # specify which (only in combination with bootparam myconfig/netconfig useful)
 CONFIG_FAST='yes'             # skip startup of w3m on tty1
-CONFIG_FINDDCSDIR='yes'	      # search for a debs, config, scripts directory
+CONFIG_FINDDCSDIR='yes'       # search for a debs, config, scripts directory
 CONFIG_FIREWIRE_DEV='no'      # bugfix for kernel >=2.6.11 - create some firewire-devices
 CONFIG_FIX_PASSWD='yes'       # fix unionfs-problem with passwd
 CONFIG_FIX_UNIONFS='yes'      # fix/workaround for unionfs
@@ -103,11 +103,11 @@ CONFIG_MYPATH='yes'           # provide setting additional paths via bootoption
 CONFIG_NETCONFIG='yes'        # download configuration archive provided by bootoption netconfig=...
 CONFIG_NETSCRIPT='yes'        # download and run script/executable provided by bootoption netscript=...
 CONFIG_NETIPV6='yes'          # check for bootparam ipv6
-CONFIG_PARTCONF='yes'	      # do we want partconf to work?
+CONFIG_PARTCONF='yes'         # do we want partconf to work?
 CONFIG_PASSWD='yes'           # set password via bootparam passwd
 CONFIG_PCMCIA='no'            # check for pcmcia and start cardmgr
 CONFIG_QEMU='yes'             # qemu specific stuff
-CONFIG_SCRIPTS='yes'	      # execute scripts from the scripts option
+CONFIG_SCRIPTS='yes'          # execute scripts from the scripts option
 CONFIG_SERVICES='yes'         # check for services to run, provided via bootparam
 CONFIG_SETKEYCODES='yes'      # run setkeycodes when bootoption setkeycodes found
 CONFIG_SMALL='yes'            # use a less "bloat" /etc/inittab for small computer with less RAM
@@ -120,6 +120,7 @@ CONFIG_TIMEZONE='yes'         # get bootparam 'tz' and set it as /etc/localtime
 CONFIG_TOHD='yes'             # bootoption tohd=...
 CONFIG_USERFSTAB='yes'        # check for username of uid 1000
 CONFIG_VMWARE='yes'           # vmware specific stuff (use xorg.conf.vmware)
+CONFIG_VNC='yes'              # check for bootparam vnc
 CONFIG_WELCOME='yes'          # play welcome sound (audio)
 CONFIG_WONDERSHAPER='yes'     # start wondershaper with options provided via bootparam
 CONFIG_XSTARTUP='yes'         # start X window system via grml-x [only in live-mode]
diff --git a/autoconfig.functions b/autoconfig.functions
index f9a70ba..6c729c6 100755
--- a/autoconfig.functions
+++ b/autoconfig.functions
@@ -1501,6 +1501,56 @@ fi
 }
 # }}}
 
+# {{{ autostart of x11vnc
+config_vnc(){
+
+USER=grml # TODO: make it dynamically configurable
+if checkbootparam 'vnc' ; then
+   VNC_PASSWD=''
+   VNC_PASSWD="$(getbootparam 'vnc' 2>>$DEBUG)"
+   einfo "Bootoption vnc found, trying to set password for user $USER."
+   eindent
+   if [ -z "$VNC_PASSWD" ] ; then
+      if [ -x /usr/bin/apg ] ; then
+         VNC_PASSWD="$(apg -M NL -a 0 -m 8 -x 12 -n 1)"
+      elif [ -x /usr/bin/gpw ] ; then
+         VNC_PASSWD="$(gpw 1)"
+      elif [ -x /usr/bin/pwgen ] ; then
+         VNC_PASSWD="$(pwgen -1 8)"
+      elif [ -x /usr/bin/hexdump ] ; then
+         VNC_PASSWD="$(dd if=/dev/urandom bs=14 count=1 2>/dev/null | hexdump | awk '{print $3 $4}')"
+      elif [ -n "$RANDOM" ] ; then
+         VNC_PASSWD="${USER}${RANDOM}"
+      else
+         VNC_PASSWD=''
+         eerror "Empty passphrase and neither pwgen nor hexdump nor \$RANDOM found. Skipping."
+         eend 1
+      fi
+
+      if [ -n "$VNC_PASSWD" ] ; then
+         ewarn "No given password for vnc found. Using random password: $VNC_PASSWD" ; eend 0
+      fi
+   fi
+   eoutdent
+
+   # finally check if we have a password we can use:
+   if [ -n "$VNC_PASSWD" ] ; then
+
+      VNCDIR="/home/${USER}/.vnc"
+      [ -d "$VNCDIR" ] || mkdir "$VNCDIR"
+
+      if [ ! -x /usr/bin/x11vnc ] ; then
+         eerror "Error: x11vnc not found - can not set up vnc. Please make sure to install the x11vnc package."
+         eend 1
+      else
+         /usr/bin/x11vnc -storepasswd "$VNC_PASSWD" "$VNCDIR"/passwd ; eend $?
+         /bin/chown -R "$USER": "$VNCDIR"
+      fi
+   fi
+fi
+}
+# }}}
+
 # {{{ set password for user grml
 config_passwd(){
 if checkbootparam 'passwd' >>$DEBUG 2>&1; then
diff --git a/grml-autoconfig b/grml-autoconfig
index 03febd7..f0e0702 100755
--- a/grml-autoconfig
+++ b/grml-autoconfig
@@ -194,6 +194,8 @@ checkvalue $CONFIG_CPU && config_cpu
 
 checkvalue $CONFIG_SSH && config_ssh
 
+checkvalue $CONFIG_VNC && config_vnc
+
 checkvalue $CONFIG_PASSWD && config_passwd
 
 checkvalue $CONFIG_EXTRACT  && config_extract