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Diffstat (limited to 'src/VBox/Installer/linux/runasroot.sh')
| -rwxr-xr-x | src/VBox/Installer/linux/runasroot.sh | 188 |
1 files changed, 188 insertions, 0 deletions
diff --git a/src/VBox/Installer/linux/runasroot.sh b/src/VBox/Installer/linux/runasroot.sh new file mode 100755 index 00000000..7c1e68fa --- /dev/null +++ b/src/VBox/Installer/linux/runasroot.sh @@ -0,0 +1,188 @@ +#!/bin/sh +# $Id: runasroot.sh $ +## @file +# VirtualBox privileged execution helper script for Linux and Solaris +# + +# +# Copyright (C) 2009-2022 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 +# + +# Deal with differing "which" semantics +mywhich() { + which "$1" 2>/dev/null | grep -v "no $1" +} + +# Get the name and execute switch for a useful terminal emulator +# +# Sets $gxtpath to the emulator path or empty +# Sets $gxttitle to the "title" switch for that emulator +# Sets $gxtexec to the "execute" switch for that emulator +# May clobber $gtx* +# Calls mywhich +getxterm() { + # gnome-terminal uses -e differently to other emulators + for gxti in "konsole --title -e" "gnome-terminal --title -x" "xterm -T -e"; do + set $gxti + gxtpath="`mywhich $1`" + case "$gxtpath" in ?*) + gxttitle=$2 + gxtexec=$3 + return + ;; + esac + done +} + +# Quotes its argument by inserting '\' in front of every character save +# for 'A-Za-z0-9/'. Prints the result to stdout. +quotify() { + echo "$1" | sed -e 's/\([^a-zA-Z0-9/]\)/\\\1/g' +} + +ostype=`uname -s` +if test "$ostype" != "Linux" && test "$ostype" != "SunOS" ; then + echo "Linux/Solaris not detected." + exit 1 +fi + +HAS_TERMINAL="" +case "$1" in "--has-terminal") + shift + HAS_TERMINAL="yes" + ;; +esac + +case "$#" in "2"|"3") + ;; + *) + echo "Usage: `basename $0` DESCRIPTION COMMAND [ADVICE]" >&2 + echo >&2 + echo "Attempt to execute COMMAND with root privileges, displaying DESCRIPTION if" >&2 + echo "possible and displaying ADVICE if possible if no su(1)-like tool is available." >&2 + exit 1 + ;; +esac + +DESCRIPTION=$1 +COMMAND=$2 +ADVICE=$3 +PATH=$PATH:/bin:/usr/bin:/usr/local/bin:/sbin:/usr/sbin:/usr/local/sbin:/usr/X11/bin + +case "$ostype" in SunOS) + PATH=$PATH:/usr/sfw/bin:/usr/gnu/bin:/usr/xpg4/bin:/usr/xpg6/bin:/usr/openwin/bin:/usr/ucb + GKSU_SWITCHES="-au root" + ;; + *) + GKSU_SWITCHES="" + ;; +esac + +case "$HAS_TERMINAL" in "") + case "$DISPLAY" in ?*) + KDESUDO="`mywhich kdesudo`" + case "$KDESUDO" in ?*) + eval "`quotify "$KDESUDO"` --comment `quotify "$DESCRIPTION"` -- $COMMAND" + exit + ;; + esac + + KDESU="`mywhich kdesu`" + case "$KDESU" in ?*) + "$KDESU" -c "$COMMAND" + exit + ;; + esac + + GKSU="`mywhich gksu`" + case "$GKSU" in ?*) + # Older gksu does not grok --description nor '--' and multiple args. + # @todo which versions do? + # "$GKSU" --description "$DESCRIPTION" -- "$@" + # Note that $GKSU_SWITCHES is NOT quoted in the following + "$GKSU" $GKSU_SWITCHES "$COMMAND" + exit + ;; + esac + ;; + esac # $DISPLAY + ;; +esac # ! $HAS_TERMINAL + +# pkexec may work for ssh console sessions as well if the right agents +# are installed. However it is very generic and does not allow for any +# custom messages. Thus it comes after gksu. +## @todo should we insist on either a display or a terminal? +# case "$DISPLAY$HAS_TERMINAL" in ?*) +PKEXEC="`mywhich pkexec`" +case "$PKEXEC" in ?*) + eval "\"$PKEXEC\" $COMMAND" + exit + ;; +esac +# ;;S +#esac + +case "$HAS_TERMINAL" in ?*) + USE_SUDO= + grep -q Ubuntu /etc/lsb-release 2>/dev/null && USE_SUDO=true + # On Ubuntu we need sudo instead of su. Assume this works, and is only + # needed for Ubuntu until proven wrong. + case $USE_SUDO in true) + SUDO_COMMAND="`quotify "$SUDO"` -- $COMMAND" + eval "$SUDO_COMMAND" + exit + ;; + esac + + SU="`mywhich su`" + case "$SU" in ?*) + "$SU" - root -c "$COMMAND" + exit + ;; + esac + ;; +esac + +# The ultimate fallback is running 'su -' within an xterm. We use the +# title of the xterm to tell what is going on. +case "$DISPLAY" in ?*) + SU="`mywhich su`" + case "$SU" in ?*) + getxterm + case "$gxtpath" in ?*) + "$gxtpath" "$gxttitle" "$DESCRIPTION - su" "$gxtexec" su - root -c "$COMMAND" + exit + ;; + esac + esac +esac # $DISPLAY + +# Failure... +case "$DISPLAY" in ?*) + echo "Unable to locate 'pkexec', 'gksu' or 'su+xterm'. $ADVICE" >&2 + ;; + *) + echo "Unable to locate 'pkexec'. $ADVICE" >&2 + ;; +esac + +exit 1 |