#! /bin/sh
# $Id: vboxadd-x11.sh 98103 2023-01-17 14:15:46Z vboxsync $
## @file
# Linux Additions X11 setup init script ($Revision: 98103 $)
#

#
# Copyright (C) 2006-2023 Oracle and/or its affiliates.
#
# This file is part of VirtualBox base platform packages, as
# available from https://www.virtualbox.org.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation, in version 3 of the
# License.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, see <https://www.gnu.org/licenses>.
#
# SPDX-License-Identifier: GPL-3.0-only
#


# chkconfig: 35 30 70
# description: VirtualBox Linux Additions kernel modules
#
### BEGIN INIT INFO
# Provides:       vboxadd-x11
# Required-Start:
# Required-Stop:
# Default-Start:
# Default-Stop:
# Description:    VirtualBox Linux Additions X11 setup
### END INIT INFO

PATH=$PATH:/bin:/sbin:/usr/sbin
CONFIG_DIR="/var/lib/VBoxGuestAdditions"
CONFIG="${CONFIG_DIR}/config"
MODPROBE=/sbin/modprobe

if $MODPROBE -c 2>/dev/null | grep -q '^allow_unsupported_modules  *0'; then
  MODPROBE="$MODPROBE --allow-unsupported-modules"
fi

# Find the version of X installed
# The last of the three is for the X.org 6.7 included in Fedora Core 2
xver=`X -version 2>&1`
x_version=`echo "$xver" | sed -n 's/^X Window System Version \([0-9.]\+\)/\1/p'``echo "$xver" | sed -n 's/^XFree86 Version \([0-9.]\+\)/\1/p'``echo "$xver" | sed -n 's/^X Protocol Version 11, Revision 0, Release \([0-9.]\+\)/\1/p'``echo "$xver" | sed -n 's/^X.Org X Server \([0-9.]\+\)/\1/p'`
x_version_short=`echo "${x_version}" | sed 's/\([0-9]*\.[0-9]*\)\..*/\1/'`
# Version of Redhat or Fedora installed.  Needed for setting up selinux policy.
redhat_release=`cat /etc/redhat-release 2> /dev/null`
# Version of OL installed.  Needed for blacklisting vboxvideo.
oracle_release=`cat /etc/oracle-release 2> /dev/null`
# All the different possible locations for XFree86/X.Org configuration files
# - how many of these have ever been used?
x11conf_files="/etc/X11/xorg.conf /etc/X11/xorg.conf-4 /etc/X11/.xorg.conf \
    /etc/xorg.conf /usr/etc/X11/xorg.conf-4 /usr/etc/X11/xorg.conf \
    /usr/lib/X11/xorg.conf-4 /usr/lib/X11/xorg.conf /etc/X11/XF86Config-4 \
    /etc/X11/XF86Config /etc/XF86Config /usr/X11R6/etc/X11/XF86Config-4 \
    /usr/X11R6/etc/X11/XF86Config /usr/X11R6/lib/X11/XF86Config-4 \
    /usr/X11R6/lib/X11/XF86Config"

# Preamble for Gentoo
if [ "`which $0`" = "/sbin/rc" ]; then
    shift
fi

dev=/dev/vboxguest
userdev=/dev/vboxuser
owner=vboxadd
group=1

fail()
{
    echo "${1}" >&2
    exit 1
}

# Install an X11 desktop startup application.  The application should be a shell script.
# Its name should be purely alphanumeric and should start with a two digit number (preferably
# 98 or thereabouts) to indicate its place in the Debian Xsession startup order.
#
# syntax: install_x11_startup_app app desktop service_name
install_x11_startup_app() {
    self="install_x11_startup_app"
    app_src=$1
    desktop_src=$2
    service_name=$3
    alt_command=$4
    test -r "$app_src" || fail "$self: no script given"
    test -r "$desktop_src" || fail "$self: no desktop file given"
    test -n "$service_name" || fail "$self: no service given"
    test -n "$alt_command" || fail "$self: no service given"
    app_dest=`basename $app_src sh`
    app_dest_sh=`basename $app_src sh`.sh
    desktop_dest=`basename $desktop_src`
    found=0
    x11_autostart="/etc/xdg/autostart"
    kde_autostart="/usr/share/autostart"
    redhat_dir=/etc/X11/Xsession.d
    mandriva_dir=/etc/X11/xinit.d
    debian_dir=/etc/X11/xinit/xinitrc.d
    if [ -d "$mandriva_dir" -a -w "$mandriva_dir" -a -x "$mandriva_dir" ]
    then
        install -m 0644 $app_src "$mandriva_dir/$app_dest"
        found=1
    fi
    if [ -d "$x11_autostart" -a -w "$x11_autostart" -a -x "$x11_autostart" ]
    then
        install -m 0644 $desktop_src "$x11_autostart/$desktop_dest"
        found=1
    fi
    if [ -d "$kde_autostart" -a -w "$kde_autostart" -a -x "$kde_autostart" ]
    then
        install -m 0644 $desktop_src "$kde_autostart/$desktop_dest"
        found=1
    fi
    if [ -d "$redhat_dir" -a -w "$redhat_dir" -a -x "$redhat_dir" ]
    then
        install -m 0644 $app_src "$redhat_dir/$app_dest"
        found=1
    fi
    if [ -d "$debian_dir" -a -w "$debian_dir" -a -x "$debian_dir" ]
    then
        install -m 0755 $app_src "$debian_dir/$app_dest_sh"
        found=1
    fi
    if [ $found -eq 1 ]; then
        return 0
    fi
    cat >&2 << EOF
Could not set up the $service_name desktop service.
To start it at log-in for a given user, add the command $alt_command
to the file .xinitrc in their home directory.
EOF
    return 1
}


start()
{
    # Todo: check configuration and correct it if necessary
    return 0
}

stop()
{
    return 0
}

restart()
{
    stop && start
    return 0
}

setup_opengl()
{
    # Install the guest OpenGL drivers.  For now we don't support
    # multi-architecture installations
    rm -f /etc/ld.so.conf.d/00vboxvideo.conf
    rm -Rf /var/lib/VBoxGuestAdditions/lib
    if /usr/bin/VBoxClient --check3d 2>/dev/null; then
        mkdir -p /var/lib/VBoxGuestAdditions/lib
        ln -sf "${INSTALL_DIR}/lib/VBoxOGL.so" /var/lib/VBoxGuestAdditions/lib/libGL.so.1
        # SELinux for the OpenGL libraries, so that gdm can load them during the
        # acceleration support check.  This prevents an "Oh no, something has gone
        # wrong!" error when starting EL7 guests.
        if test -e /etc/selinux/config; then
            if command -v semanage > /dev/null; then
                semanage fcontext -a -t lib_t "/var/lib/VBoxGuestAdditions/lib/libGL.so.1"
            fi
            # This is needed on old Fedora/Redhat systems.  No one remembers which.
            chcon -h  -t lib_t "/var/lib/VBoxGuestAdditions/lib/libGL.so.1" 2>/dev/null
        fi
        echo "/var/lib/VBoxGuestAdditions/lib" > /etc/ld.so.conf.d/00vboxvideo.conf
    fi
    ldconfig
}

setup()
{
    if test -r "${CONFIG}"; then
      . "${CONFIG}"
    else
      fail "Configuration file ${CONFIG} not found"
    fi
    test -n "$INSTALL_DIR" -a -n "$INSTALL_VER" ||
      fail "Configuration file ${CONFIG} not complete"
    lib_dir="${INSTALL_DIR}/other"
    test -x "${lib_dir}" ||
        fail "Invalid Guest Additions configuration found."
    # By default we want to configure X
    dox11config="true"
    # By default, we want to run our xorg.conf setup script
    setupxorgconf="true"
    # All but the oldest supported X servers can automatically set up the
    # keyboard driver.
    autokeyboard="--autoKeyboard"
    # On more recent servers our kernel mouse driver will be used
    # automatically
    automouse="--autoMouse"
    # We need to tell our xorg.conf hacking script whether /dev/psaux exists
    nopsaux="--nopsaux"
    case "`uname -r`" in 2.4.*)
        test -c /dev/psaux && nopsaux="";;
    esac
    # Should we use the VMSVGA driver instead of VBoxVideo?
    if grep 80eebeef /proc/bus/pci/devices > /dev/null; then
    vmsvga=""
    elif grep 15ad0405 /proc/bus/pci/devices > /dev/null; then
        vmsvga="--vmsvga"
    else
        dox11config=""
    fi
    # The video driver to install for X.Org 6.9+
    vboxvideo_src=
    # The mouse driver to install for X.Org 6.9+
    vboxmouse_src=
    # The driver extension
    driver_ext=".so"
    # The configuration file we generate if no original was found but we need
    # one.
    main_cfg="/etc/X11/xorg.conf"

    modules_dir=`X -showDefaultModulePath 2>&1` || modules_dir=
    if [ -z "$modules_dir" ]; then
        for dir in /usr/lib64/xorg/modules /usr/lib/xorg/modules /usr/X11R6/lib64/modules /usr/X11R6/lib/modules /usr/X11R6/lib/X11/modules; do
            if [ -d $dir ]; then
                modules_dir=$dir
                break
            fi
        done
    fi

    case "${x_version}" in
    4.* | 6.* | 7.* | 1.?.* | 1.1[0-6].* )
        blacklist_vboxvideo="yes"
        ;;
    esac
    case "$oracle_release" in
        Oracle*release\ 6.* )
            # relevant for OL6/UEK4 but cannot hurt for other kernels
            blacklist_vboxvideo="yes"
    esac
    if test -n "${blacklist_vboxvideo}"; then
        test -d /etc/modprobe.d &&
            echo "blacklist vboxvideo" > /etc/modprobe.d/blacklist-vboxvideo.conf
    else
        test -f /etc/modprobe.d/blacklist-vboxvideo.conf &&
            rm -f /etc/modprobe.d/blacklist-vboxvideo.conf
        # We do not want to load the driver if X.Org Server is already
        # running, as without a driver the server will touch the hardware
        # directly, causing problems.
        ps -Af | grep -q '[X]org' || ${MODPROBE} -q vboxvideo
    fi

    test -z "$x_version" -o -z "$modules_dir" &&
        {
            echo "Could not find the X.Org or XFree86 Window System, skipping." >&2
            exit 0
        }

    # openSUSE 10.3 shipped X.Org 7.2 with X.Org Server 1.3, but didn't
    # advertise the fact.
    if grep -q '10\.3' /etc/SuSE-release 2>/dev/null; then
        case $x_version in 7.2.*)
            x_version=1.3.0;;
        esac
    fi
    case $x_version in
        1.*.99.* )
            echo "Warning: unsupported pre-release version of X.Org Server installed.  Not installing the X.Org drivers." >&2
            dox11config=""
            ;;
        1.11.* )
            xserver_version="X.Org Server 1.11"
            vboxvideo_src=vboxvideo_drv_111.so
            test "$system" = "redhat" && test -z "${vmsvga}" || setupxorgconf=""
            ;;
        1.10.* )
            xserver_version="X.Org Server 1.10"
            vboxvideo_src=vboxvideo_drv_110.so
            test "$system" = "redhat" && test -z "${vmsvga}" || setupxorgconf=""
            ;;
        1.9.* )
            xserver_version="X.Org Server 1.9"
            vboxvideo_src=vboxvideo_drv_19.so
            # Fedora 14 to 16 patched out vboxvideo detection
            test "$system" = "redhat" && test -z "${vmsvga}" || setupxorgconf=""
            ;;
        1.8.* )
            xserver_version="X.Org Server 1.8"
            vboxvideo_src=vboxvideo_drv_18.so
            # Fedora 13 shipped without vboxvideo detection
            test "$system" = "redhat" && test -z "${vmsvga}" || setupxorgconf=""
            ;;
        1.7.* )
            xserver_version="X.Org Server 1.7"
            vboxvideo_src=vboxvideo_drv_17.so
            setupxorgconf=""
            ;;
        1.6.* )
            xserver_version="X.Org Server 1.6"
            vboxvideo_src=vboxvideo_drv_16.so
            vboxmouse_src=vboxmouse_drv_16.so
            # SUSE SLE* with X.Org 1.6 does not do input autodetection;
            # openSUSE does.
            if grep -q -E '^SLE[^ ]' /etc/SuSE-brand 2>/dev/null; then
                automouse=""
            else
                test "$system" = "suse" && setupxorgconf=""
            fi
            ;;
        1.5.* )
            xserver_version="X.Org Server 1.5"
            vboxvideo_src=vboxvideo_drv_15.so
            vboxmouse_src=vboxmouse_drv_15.so
            # Historical note: SUSE with X.Org Server 1.5 disabled automatic
            # mouse configuration and was handled specially.  However since our
            # kernel driver seems to have problems with X.Org Server 1.5 anyway
            # we just create an X.Org configuration file and use the user space
            # one generally, no longer just for SUSE.
            automouse=""
            ;;
        1.4.* )
            xserver_version="X.Org Server 1.4"
            vboxvideo_src=vboxvideo_drv_14.so
            vboxmouse_src=vboxmouse_drv_14.so
            automouse=""
            ;;
        1.3.* )
            # This was the first release which gave the server version number
            # rather than the X11 release version when you did 'X -version'.
            xserver_version="X.Org Server 1.3"
            vboxvideo_src=vboxvideo_drv_13.so
            vboxmouse_src=vboxmouse_drv_13.so
            automouse=""
            ;;
        7.1.* | 7.2.* )
            xserver_version="X.Org 7.1"
            vboxvideo_src=vboxvideo_drv_71.so
            vboxmouse_src=vboxmouse_drv_71.so
            automouse=""
            ;;
        6.9.* | 7.0.* )
            xserver_version="X.Org 6.9/7.0"
            vboxvideo_src=vboxvideo_drv_70.so
            vboxmouse_src=vboxmouse_drv_70.so
            automouse=""
            ;;
        6.7* | 6.8.* | 4.2.* | 4.3.* )
            # As the module binaries are the same we use one text for these
            # four server versions.
            xserver_version="XFree86 4.2/4.3 and X.Org 6.7/6.8"
            driver_ext=.o
            vboxvideo_src=vboxvideo_drv.o
            vboxmouse_src=vboxmouse_drv.o
            automouse=""
            autokeyboard=""
            case $x_version in
                6.8.* )
                    autokeyboard="--autoKeyboard"
                    ;;
                4.2.* | 4.3.* )
                    main_cfg="/etc/X11/XF86Config"
                    ;;
            esac
            ;;
        1.12.* | 1.13.* | 1.14.* | 1.15.* | 1.16.* | 1.17.* | 1.18.* )
            xserver_version="X.Org Server ${x_version_short}"
            vboxvideo_src=vboxvideo_drv_`echo ${x_version_short} | sed 's/\.//'`.so
            setupxorgconf=""
            test -f "${lib_dir}/${vboxvideo_src}" ||
            {
                echo "Warning: unknown version of the X Window System installed.  Not installing X Window System drivers." >&2
                dox11config=""
                vboxvideo_src=""
            }
            ;;
        * )
            # For anything else, assume kernel drivers.
            dox11config=""
            ;;
    esac
    test -n "${dox11config}" &&
        echo "Installing $xserver_version modules" >&2
    case "$vboxvideo_src" in
        ?*)
        ln -s "${lib_dir}/$vboxvideo_src" "$modules_dir/drivers/vboxvideo_drv$driver_ext.new" &&
            mv "$modules_dir/drivers/vboxvideo_drv$driver_ext.new" "$modules_dir/drivers/vboxvideo_drv$driver_ext";;
        *)
        rm "$modules_dir/drivers/vboxvideo_drv$driver_ext" 2>/dev/null
    esac
    case "$vboxmouse_src" in
        ?*)
        ln -s "${lib_dir}/$vboxmouse_src" "$modules_dir/input/vboxmouse_drv$driver_ext.new" &&
            mv "$modules_dir/input/vboxmouse_drv$driver_ext.new" "$modules_dir/input/vboxmouse_drv$driver_ext";;
        *)
        rm "$modules_dir/input/vboxmouse_drv$driver_ext" 2>/dev/null
    esac

    if test -n "$dox11config"; then
        # Certain Ubuntu/Debian versions use a special PCI-id file to identify
        # video drivers.  Some versions have the directory and don't use it.
        # Those versions can autoload vboxvideo though, so we don't need to
        # hack the configuration file for them.
        test "$system" = "debian" -a -d /usr/share/xserver-xorg/pci &&
        {
            rm -f "/usr/share/xserver-xorg/pci/vboxvideo.ids"
            ln -s "${lib_dir}/vboxvideo.ids" /usr/share/xserver-xorg/pci 2>/dev/null
            test -n "$automouse" && setupxorgconf=""
        }

        # Do the XF86Config/xorg.conf hack for those versions that require it
        configured=""
        generated=""
        if test -n "$setupxorgconf"; then
            for i in $x11conf_files; do
                if test -r "$i"; then
                    if grep -q "VirtualBox generated" "$i"; then
                        generated="$generated  `printf "$i\n"`"
                    else
                        "${lib_dir}/x11config.sh" $autokeyboard $automouse $nopsaux $vmsvga "$i"
                    fi
                    configured="true"
                fi
                # Timestamp, so that we can see if the config file is changed
                # by someone else later
                test -r "$i.vbox" && touch "$i.vbox"
            done
            # X.Org Server 1.5 and 1.6 can detect hardware they know, but they
            # need a configuration file for VBoxVideo.
            nobak_cfg="`expr "${main_cfg}" : '\([^.]*\)'`.vbox.nobak"
            if test -z "$configured"; then
                touch "$main_cfg"
                "${lib_dir}/x11config.sh" $autokeyboard $automouse $nopsaux $vmsvga --noBak "$main_cfg"
                touch "${nobak_cfg}"
            fi
        fi
        test -n "$generated" &&
            cat >&2 << EOF
The following X.Org/XFree86 configuration files were originally generated by
the VirtualBox Guest Additions and were not modified:

$generated

EOF
        tty >/dev/null && cat << EOF
You may need to restart the Window System (or just restart the guest system)
to enable the Guest Additions.

EOF
    fi

    case "$redhat_release" in
        # Install selinux policy for Fedora 7 and 8 to allow the X server to
        # open device files
        Fedora\ release\ 7* | Fedora\ release\ 8* )
            semodule -i "${lib_dir}/vbox_x11.pp" > /dev/null 2>&1
            ;;
        # Similar for the accelerated graphics check on Fedora 15
        Fedora\ release\ 15* )
            semodule -i "${lib_dir}/vbox_accel.pp" > /dev/null 2>&1
            ;;
    esac

    # Install selinux policy for Fedora 8 to allow the X server to
    # open our drivers
    case "$redhat_release" in
        Fedora\ release\ 8* )
            chcon -u system_u -t lib_t "${lib_dir}"/*.so 2>/dev/null
            ;;
    esac

    # Our logging code generates some glue code on 32-bit systems.  At least F10
    # needs a rule to allow this.  Send all output to /dev/null in case this is
    # completely irrelevant on the target system.
    # chcon is needed on old Fedora/Redhat systems.  No one remembers which.
    chcon -t unconfined_execmem_exec_t '/usr/bin/VBoxClient' > /dev/null 2>&1
    semanage fcontext -a -t unconfined_execmem_exec_t '/usr/bin/VBoxClient' > /dev/null 2>&1

    # And set up VBoxClient to start when the X session does
    install_x11_startup_app "${lib_dir}/98vboxadd-xclient" "${lib_dir}/vboxclient.desktop" VBoxClient VBoxClient-all ||
        fail "Failed to set up VBoxClient to start automatically."
    ln -s "${lib_dir}/98vboxadd-xclient" /usr/bin/VBoxClient-all 2>/dev/null
    case "${x_version}" in 4.* | 6.* | 7.* | 1.?.* | 1.1* )
        setup_opengl
    esac
    # Try enabling VMSVGA drm device resizing.
    #VBoxClient --vmsvga
}

cleanup()
{
    # Restore xorg.conf files as far as possible
    # List of generated files which have been changed since we generated them
    newer=""
    # Are we dealing with a legacy information which didn't support
    # uninstallation?
    legacy=""
    # Do any of the restored configuration files still reference our drivers?
    failed=""
    # Have we encountered a "nobak" configuration file which means that there
    # is no original file to restore?
    nobak=""
    test -r "$CONFIG_DIR/$CONFIG" || legacy="true"
    for main_cfg in "/etc/X11/xorg.conf" "/etc/X11/XF86Config"; do
        nobak_cfg="`expr "${main_cfg}" : '\([^.]*\)'`.vbox.nobak"
        if test -r "${nobak_cfg}"; then
            test -r "${main_cfg}" &&
            if test -n "${legacy}" -o ! "${nobak_cfg}" -ot "${main_cfg}"; then
                rm -f "${nobak_cfg}" "${main_cfg}"
            else
                newer="${newer}`printf "  ${main_cfg} (no original)\n"`"
            fi
            nobak="true"
        fi
    done
    if test -z "${nobak}"; then
        for i in $x11conf_files; do
            if test -r "$i.vbox"; then
                if test ! "$i" -nt "$i.vbox" -o -n "$legacy"; then
                    mv -f "$i.vbox" "$i"
                    grep -q -E 'vboxvideo|vboxmouse' "$i" &&
                        failed="$failed`printf "  $i\n"`"
                else
                    newer="$newer`printf "  $i ($i.vbox)\n"`"
                fi
            fi
        done
    fi
    test -n "$newer" && cat >&2 << EOF

The following X.Org/XFree86 configuration files were not restored, as they may
have been changed since they were generated by the VirtualBox Guest Additions.
You may wish to restore these manually.  The file name in brackets is the
original version.

$newer

EOF
    test -n "$failed" && cat >&2 << EOF

The following X.Org/XFree86 configuration files were restored, but still
contain references to the Guest Additions drivers.  You may wish to check and
possibly correct the restored configuration files to be sure that the server
will continue to work after it is restarted.

$failed

EOF

    # Remove X.Org drivers
    modules_dir=`X -showDefaultModulePath 2>&1` || modules_dir=
    if [ -z "$modules_dir" ]; then
        for dir in /usr/lib64/xorg/modules /usr/lib/xorg/modules /usr/X11R6/lib64/modules /usr/X11R6/lib/modules /usr/X11R6/lib/X11/modules; do
            if [ -d $dir ]; then
                modules_dir=$dir
                break
            fi
        done
    fi
    rm -f "$modules_dir/drivers/vboxvideo_drv"* 2>/dev/null
    rm -f "$modules_dir/input/vboxmouse_drv"* 2>/dev/null

    # Remove the link to vboxvideo_dri.so
    for dir in /usr/lib/dri /usr/lib32/dri /usr/lib64/dri \
        /usr/lib/xorg/modules/dri /usr/lib32/xorg/modules/dri \
        /usr/lib64/xorg/modules/dri /usr/lib/i386-linux-gnu/dri \
        /usr/lib/x86_64-linux-gnu/dri; do
        if [ -d $dir ]; then
            rm -f "$dir/vboxvideo_dri.so" 2>/dev/null
        fi
    done

    # Remove VBoxClient autostart files
    rm /etc/X11/Xsession.d/98vboxadd-xclient 2>/dev/null
    rm /etc/X11/xinit.d/98vboxadd-xclient 2>/dev/null
    rm /etc/X11/xinit/xinitrc.d/98vboxadd-xclient.sh 2>/dev/null
    rm /etc/xdg/autostart/vboxclient.desktop 2>/dev/null
    rm /usr/share/autostart/vboxclient.desktop 2>/dev/null
    rm /usr/bin/VBoxClient-all 2>/dev/null

    # Remove other files
    rm /usr/share/xserver-xorg/pci/vboxvideo.ids 2>/dev/null
    return 0
}

dmnstatus()
{
    /bin/true
}

case "$1" in
start)
    start
    ;;
stop)
    stop
    ;;
restart)
    restart
    ;;
setup)
    setup
    ;;
cleanup)
    cleanup
    ;;
status)
    dmnstatus
    ;;
*)
    echo "Usage: $0 {start|stop|restart|status}"
    exit 1
esac

exit