vboxdrv.sh@ 98565

Last change on this file since 98565 was 98565, checked in by vboxsync, 21 months ago

Linux: rcvboxdrv: Allow to bypass forced kernel modules signature validation, bugref:10287.

Added a tweak which allows to bypass modules signature validation for distributions
which do not provide tools for that. Administrator should explicitly add:

VBOX_BYPASS_MODULES_SIGNATURE_CHECK="1"

into /etc/vbox/vbox.cfg in order to enable this tweak.

Property svn:eol-style set to LF
Property svn:keywords set to Author Date Id Revision

File size: 29.0 KB

Line
1	#! /bin/sh
2	# Oracle VM VirtualBox
3	# Linux kernel module init script
4
5	#
6	# Copyright (C) 2006-2023 Oracle and/or its affiliates.
7	#
8	# This file is part of VirtualBox base platform packages, as
9	# available from https://www.virtualbox.org.
10	#
11	# This program is free software; you can redistribute it and/or
12	# modify it under the terms of the GNU General Public License
13	# as published by the Free Software Foundation, in version 3 of the
14	# License.
15	#
16	# This program is distributed in the hope that it will be useful, but
17	# WITHOUT ANY WARRANTY; without even the implied warranty of
18	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19	# General Public License for more details.
20	#
21	# You should have received a copy of the GNU General Public License
22	# along with this program; if not, see <https://www.gnu.org/licenses>.
23	#
24	# SPDX-License-Identifier: GPL-3.0-only
25	#
26
27	# chkconfig: 345 20 80
28	# description: VirtualBox Linux kernel module
29	#
30	### BEGIN INIT INFO
31	# Provides: vboxdrv
32	# Required-Start: $syslog
33	# Required-Stop:
34	# Default-Start: 2 3 4 5
35	# Default-Stop: 0 1 6
36	# Short-Description: VirtualBox Linux kernel module
37	### END INIT INFO
38
39	## @todo This file duplicates a lot of script with vboxadd.sh. When making
40	# changes please try to reduce differences between the two wherever possible.
41
42	## @todo Remove the stop_vms target so that this script is only relevant to
43	# kernel modules. Nice but not urgent.
44
45	PATH=/sbin:/bin:/usr/sbin:/usr/bin:$PATH
46	DEVICE=/dev/vboxdrv
47	MODPROBE=/sbin/modprobe
48	SCRIPTNAME=vboxdrv.sh
49
50	# The below is GNU-specific. See VBox.sh for the longer Solaris/OS X version.
51	TARGET=`readlink -e -- "${0}"` \|\| exit 1
52	SCRIPT_DIR="${TARGET%/[!/]*}"
53
54	if $MODPROBE -c \| grep -q '^allow_unsupported_modules *0'; then
55	MODPROBE="$MODPROBE --allow-unsupported-modules"
56	fi
57
58	setup_log()
59	{
60	test -n "${LOG}" && return 0
61	# Rotate log files
62	LOG="/var/log/vbox-setup.log"
63	mv "${LOG}.3" "${LOG}.4" 2>/dev/null
64	mv "${LOG}.2" "${LOG}.3" 2>/dev/null
65	mv "${LOG}.1" "${LOG}.2" 2>/dev/null
66	mv "${LOG}" "${LOG}.1" 2>/dev/null
67	}
68
69	[ -f /etc/vbox/vbox.cfg ] && . /etc/vbox/vbox.cfg
70	export VBOX_KBUILD_TYPE
71	export USERNAME
72	export USER=$USERNAME
73
74	if test -n "${INSTALL_DIR}" && test -x "${INSTALL_DIR}/VirtualBox"; then
75	MODULE_SRC="${INSTALL_DIR}/src/vboxhost"
76	elif test -x /usr/lib/virtualbox/VirtualBox; then
77	INSTALL_DIR=/usr/lib/virtualbox
78	MODULE_SRC="/usr/share/virtualbox/src/vboxhost"
79	elif test -x "${SCRIPT_DIR}/VirtualBox"; then
80	# Executing from the build directory
81	INSTALL_DIR="${SCRIPT_DIR}"
82	MODULE_SRC="${INSTALL_DIR}/src"
83	else
84	# Silently exit if the package was uninstalled but not purged.
85	# Applies to Debian packages only (but shouldn't hurt elsewhere)
86	exit 0
87	fi
88	VIRTUALBOX="${INSTALL_DIR}/VirtualBox"
89	VBOXMANAGE="${INSTALL_DIR}/VBoxManage"
90	BUILDINTMP="${MODULE_SRC}/build_in_tmp"
91	if test -u "${VIRTUALBOX}"; then
92	GROUP=root
93	DEVICE_MODE=0600
94	else
95	GROUP=vboxusers
96	DEVICE_MODE=0660
97	fi
98
99	KERN_VER=`uname -r`
100
101	# Prepend PATH for building UEK7 on OL8 distribution.
102	case "$KERN_VER" in
103	5.15.0-.el8uek) PATH="/opt/rh/gcc-toolset-11/root/usr/bin:$PATH";;
104	esac
105
106	if test -e "${MODULE_SRC}/vboxpci"; then
107	MODULE_LIST="vboxdrv vboxnetflt vboxnetadp vboxpci"
108	else
109	MODULE_LIST="vboxdrv vboxnetflt vboxnetadp"
110	fi
111	# Secure boot state.
112	case "`mokutil --sb-state 2>/dev/null`" in
113	"disabled in shim") unset HAVE_SEC_BOOT;;
114	"SecureBoot enabled") HAVE_SEC_BOOT=true;;
115	*) unset HAVE_SEC_BOOT;;
116	esac
117	# So far we can only sign modules on Ubuntu and on Debian 10 and later.
118	DEB_PUB_KEY=/var/lib/shim-signed/mok/MOK.der
119	DEB_PRIV_KEY=/var/lib/shim-signed/mok/MOK.priv
120	unset HAVE_DEB_KEY
121	case "`mokutil --test-key "$DEB_PUB_KEY" 2>/dev/null`" in
122	"is already") DEB_KEY_ENROLLED=true;;
123	*) unset DEB_KEY_ENROLLED;;
124	esac
125
126	# Try to find a tool for modules signing.
127	SIGN_TOOL=$(which kmodsign 2>/dev/null)
128	# Attempt to use in-kernel signing tool if kmodsign not found.
129	if test -z "$SIGN_TOOL"; then
130	if test -x "/lib/modules/$KERN_VER/build/scripts/sign-file"; then
131	SIGN_TOOL="/lib/modules/$KERN_VER/build/scripts/sign-file"
132	fi
133	fi
134
135	# Check if update-secureboot-policy tool supports required commandline options.
136	update_secureboot_policy_supports()
137	{
138	opt_name="$1"
139	[ -n "$opt_name" ] \|\| return
140
141	[ -z "$(update-secureboot-policy --help 2>&1 \| grep "$opt_name")" ] && return
142	echo "1"
143	}
144
145	HAVE_UPDATE_SECUREBOOT_POLICY_TOOL=
146	if type update-secureboot-policy >/dev/null 2>&1; then
147	[ "$(update_secureboot_policy_supports new-key)" = "1" -a "$(update_secureboot_policy_supports enroll-key)" = "1" ] && \
148	HAVE_UPDATE_SECUREBOOT_POLICY_TOOL=true
149	fi
150
151	[ -r /etc/default/virtualbox ] && . /etc/default/virtualbox
152
153	# Preamble for Gentoo
154	if [ "`which $0`" = "/sbin/rc" ]; then
155	shift
156	fi
157
158	begin_msg()
159	{
160	test -n "${2}" && echo "${SCRIPTNAME}: ${1}."
161	logger -t "${SCRIPTNAME}" "${1}."
162	}
163
164	succ_msg()
165	{
166	logger -t "${SCRIPTNAME}" "${1}."
167	}
168
169	fail_msg()
170	{
171	echo "${SCRIPTNAME}: failed: ${1}." >&2
172	logger -t "${SCRIPTNAME}" "failed: ${1}."
173	}
174
175	failure()
176	{
177	fail_msg "$1"
178	exit 1
179	}
180
181	running()
182	{
183	lsmod \| grep -q "$1[^_-]"
184	}
185
186	log()
187	{
188	setup_log
189	echo "${1}" >> "${LOG}"
190	}
191
192	module_build_log()
193	{
194	setup_log
195	echo "${1}" \| egrep -v \
196	"^test -e include/generated/autoconf.h\|^echo >&2\|^/bin/false\)$" \
197	>> "${LOG}"
198	}
199
200	# Detect VirtualBox version info or report error.
201	VBOX_VERSION="`"$VBOXMANAGE" -v \| cut -d r -f1`"
202	[ -n "$VBOX_VERSION" ] \|\| failure 'Cannot detect VirtualBox version number'
203	VBOX_REVISION="r`"$VBOXMANAGE" -v \| cut -d r -f2`"
204	[ "$VBOX_REVISION" != "r" ] \|\| failure 'Cannot detect VirtualBox revision number'
205
206	## Output the vboxdrv part of our udev rule. This is redirected to the right file.
207	udev_write_vboxdrv() {
208	VBOXDRV_GRP="$1"
209	VBOXDRV_MODE="$2"
210
211	echo "KERNEL==\"vboxdrv\", OWNER=\"root\", GROUP=\"$VBOXDRV_GRP\", MODE=\"$VBOXDRV_MODE\""
212	echo "KERNEL==\"vboxdrvu\", OWNER=\"root\", GROUP=\"root\", MODE=\"0666\""
213	echo "KERNEL==\"vboxnetctl\", OWNER=\"root\", GROUP=\"$VBOXDRV_GRP\", MODE=\"$VBOXDRV_MODE\""
214	}
215
216	## Output the USB part of our udev rule. This is redirected to the right file.
217	udev_write_usb() {
218	INSTALLATION_DIR="$1"
219	USB_GROUP="$2"
220
221	echo "SUBSYSTEM==\"usb_device\", ACTION==\"add\", RUN+=\"$INSTALLATION_DIR/VBoxCreateUSBNode.sh \$major \$minor \$attr{bDeviceClass}${USB_GROUP}\""
222	echo "SUBSYSTEM==\"usb\", ACTION==\"add\", ENV{DEVTYPE}==\"usb_device\", RUN+=\"$INSTALLATION_DIR/VBoxCreateUSBNode.sh \$major \$minor \$attr{bDeviceClass}${USB_GROUP}\""
223	echo "SUBSYSTEM==\"usb_device\", ACTION==\"remove\", RUN+=\"$INSTALLATION_DIR/VBoxCreateUSBNode.sh --remove \$major \$minor\""
224	echo "SUBSYSTEM==\"usb\", ACTION==\"remove\", ENV{DEVTYPE}==\"usb_device\", RUN+=\"$INSTALLATION_DIR/VBoxCreateUSBNode.sh --remove \$major \$minor\""
225	}
226
227	## Generate our udev rule file. This takes a change in udev rule syntax in
228	## version 55 into account. It only creates rules for USB for udev versions
229	## recent enough to support USB device nodes.
230	generate_udev_rule() {
231	VBOXDRV_GRP="$1" # The group owning the vboxdrv device
232	VBOXDRV_MODE="$2" # The access mode for the vboxdrv device
233	INSTALLATION_DIR="$3" # The directory VirtualBox is installed in
234	USB_GROUP="$4" # The group that has permission to access USB devices
235	NO_INSTALL="$5" # Set this to "1" to remove but not re-install rules
236
237	# Extra space!
238	case "$USB_GROUP" in ?*) USB_GROUP=" $USB_GROUP" ;; esac
239	case "$NO_INSTALL" in "1") return ;; esac
240	udev_write_vboxdrv "$VBOXDRV_GRP" "$VBOXDRV_MODE"
241	udev_write_usb "$INSTALLATION_DIR" "$USB_GROUP"
242	}
243
244	## Install udev rule (disable with INSTALL_NO_UDEV=1 in
245	## /etc/default/virtualbox).
246	install_udev() {
247	VBOXDRV_GRP="$1" # The group owning the vboxdrv device
248	VBOXDRV_MODE="$2" # The access mode for the vboxdrv device
249	INSTALLATION_DIR="$3" # The directory VirtualBox is installed in
250	USB_GROUP="$4" # The group that has permission to access USB devices
251	NO_INSTALL="$5" # Set this to "1" to remove but not re-install rules
252
253	if test -d /etc/udev/rules.d; then
254	generate_udev_rule "$VBOXDRV_GRP" "$VBOXDRV_MODE" "$INSTALLATION_DIR" \
255	"$USB_GROUP" "$NO_INSTALL"
256	fi
257	# Remove old udev description file
258	rm -f /etc/udev/rules.d/10-vboxdrv.rules 2> /dev/null
259	}
260
261	## Create a usb device node for a given sysfs path to a USB device.
262	install_create_usb_node_for_sysfs() {
263	path="$1" # sysfs path for the device
264	usb_createnode="$2" # Path to the USB device node creation script
265	usb_group="$3" # The group to give ownership of the node to
266	if test -r "${path}/dev"; then
267	dev="`cat "${path}/dev" 2> /dev/null`"
268	major="`expr "$dev" : '$.*$:' 2> /dev/null`"
269	minor="`expr "$dev" : '.:$.$' 2> /dev/null`"
270	class="`cat ${path}/bDeviceClass 2> /dev/null`"
271	sh "${usb_createnode}" "$major" "$minor" "$class" \
272	"${usb_group}" 2>/dev/null
273	fi
274	}
275
276	udev_rule_file=/etc/udev/rules.d/60-vboxdrv.rules
277	sysfs_usb_devices="/sys/bus/usb/devices/*"
278
279	## Install udev rules and create device nodes for usb access
280	setup_usb() {
281	VBOXDRV_GRP="$1" # The group that should own /dev/vboxdrv
282	VBOXDRV_MODE="$2" # The mode to be used for /dev/vboxdrv
283	INSTALLATION_DIR="$3" # The directory VirtualBox is installed in
284	USB_GROUP="$4" # The group that should own the /dev/vboxusb device
285	# nodes unless INSTALL_NO_GROUP=1 in
286	# /etc/default/virtualbox. Optional.
287	usb_createnode="$INSTALLATION_DIR/VBoxCreateUSBNode.sh"
288	# install udev rule (disable with INSTALL_NO_UDEV=1 in
289	# /etc/default/virtualbox)
290	if [ "$INSTALL_NO_GROUP" != "1" ]; then
291	usb_group=$USB_GROUP
292	vboxdrv_group=$VBOXDRV_GRP
293	else
294	usb_group=root
295	vboxdrv_group=root
296	fi
297	install_udev "${vboxdrv_group}" "$VBOXDRV_MODE" \
298	"$INSTALLATION_DIR" "${usb_group}" \
299	"$INSTALL_NO_UDEV" > ${udev_rule_file}
300	# Build our device tree
301	for i in ${sysfs_usb_devices}; do # This line intentionally without quotes.
302	install_create_usb_node_for_sysfs "$i" "${usb_createnode}" \
303	"${usb_group}"
304	done
305	}
306
307	cleanup_usb()
308	{
309	# Remove udev description file
310	rm -f /etc/udev/rules.d/60-vboxdrv.rules
311	rm -f /etc/udev/rules.d/10-vboxdrv.rules
312
313	# Remove our USB device tree
314	rm -rf /dev/vboxusb
315	}
316
317	# Returns path to module file as seen by modinfo(8) or empty string.
318	module_path()
319	{
320	mod="$1"
321	[ -n "$mod" ] \|\| return
322
323	modinfo "$mod" 2>/dev/null \| grep -e "^filename:" \| tr -s ' ' \| cut -d " " -f2
324	}
325
326	# Returns module version if module is available or empty string.
327	module_version()
328	{
329	mod="$1"
330	[ -n "$mod" ] \|\| return
331
332	modinfo "$mod" 2>/dev/null \| grep -e "^version:" \| tr -s ' ' \| cut -d " " -f2
333	}
334
335	# Returns module revision if module is available in the system or empty string.
336	module_revision()
337	{
338	mod="$1"
339	[ -n "$mod" ] \|\| return
340
341	modinfo "$mod" 2>/dev/null \| grep -e "^version:" \| tr -s ' ' \| cut -d " " -f3
342	}
343
344	# Reads kernel configuration option.
345	kernel_get_config_opt()
346	{
347	opt_name="$1"
348	[ -n "$opt_name" ] \|\| return
349
350	# Check if there is a kernel tool which can extract config option.
351	if test -x /lib/modules/"$KERN_VER"/build/scripts/config; then
352	/lib/modules/"$KERN_VER"/build/scripts/config \
353	--file /lib/modules/"$KERN_VER"/build/.config \
354	--state "$opt_name" 2>/dev/null
355	elif test -f /lib/modules/"$KERN_VER"/build/.config; then
356	# Extract config option manually.
357	grep "$opt_name" /lib/modules/"$KERN_VER"/build/.config \| sed -e "s/^$opt_name=//" -e "s/\"//g"
358	fi
359	}
360
361	# Reads CONFIG_MODULE_SIG_HASH from kernel config.
362	kernel_module_sig_hash()
363	{
364	kernel_get_config_opt "CONFIG_MODULE_SIG_HASH"
365	}
366
367	# Returns "1" if kernel module signature hash algorithm
368	# is supported by us. Or empty string otherwise.
369	module_sig_hash_supported()
370	{
371	sig_hashalgo="$1"
372	[ -n "$sig_hashalgo" ] \|\| return
373
374	# Go through supported list.
375	[ "$sig_hashalgo" = "sha1" \
376	-o "$sig_hashalgo" = "sha224" \
377	-o "$sig_hashalgo" = "sha256" \
378	-o "$sig_hashalgo" = "sha384" \
379	-o "$sig_hashalgo" = "sha512" ] \|\| return
380
381	echo "1"
382	}
383
384	# Returns "1" if module is signed and signature can be verified
385	# with public key provided in DEB_PUB_KEY. Or empty string otherwise.
386	module_signed()
387	{
388	mod="$1"
389	[ -n "$mod" ] \|\| return
390
391	# Be nice with distributions which do not provide tools which we
392	# use in order to verify module signature. This variable needs to
393	# be explicitly set by administrator. This script will look for it
394	# in /etc/vbox/vbox.cfg. Make sure that you know what you do!
395	if [ "$VBOX_BYPASS_MODULES_SIGNATURE_CHECK" = "1" ]; then
396	echo "1"
397	return
398	fi
399
400	extraction_tool=/lib/modules/"$(uname -r)"/build/scripts/extract-module-sig.pl
401	mod_path=$(module_path "$mod" 2>/dev/null)
402	openssl_tool=$(which openssl 2>/dev/null)
403	# Do not use built-in printf!
404	printf_tool=$(which printf 2>/dev/null)
405
406	# Make sure all the tools required for signature validation are available.
407	[ -x "$extraction_tool" ] \|\| return
408	[ -n "$mod_path" ] \|\| return
409	[ -n "$openssl_tool" ] \|\| return
410	[ -n "$printf_tool" ] \|\| return
411
412	# Make sure openssl can handle hash algorithm.
413	sig_hashalgo=$(modinfo -F sig_hashalgo "$mod" 2>/dev/null)
414	[ "$(module_sig_hash_supported $sig_hashalgo)" = "1" ] \|\| return
415
416	# Generate file names for temporary stuff.
417	mod_pub_key=$(mktemp -u)
418	mod_signature=$(mktemp -u)
419	mod_unsigned=$(mktemp -u)
420
421	# Convert public key in DER format into X509 certificate form.
422	"$openssl_tool" x509 -pubkey -inform DER -in "$DEB_PUB_KEY" -out "$mod_pub_key" 2>/dev/null
423	# Extract raw module signature and convert it into binary format.
424	"$printf_tool" \\x$(modinfo -F signature "$mod" \| sed -z 's/[ \t\n]//g' \| sed -e "s/:/\\\x/g") 2>/dev/null > "$mod_signature"
425	# Extract unsigned module for further digest calculation.
426	"$extraction_tool" -0 "$mod_path" 2>/dev/null > "$mod_unsigned"
427
428	# Verify signature.
429	rc=""
430	"$openssl_tool" dgst "-$sig_hashalgo" -binary -verify "$mod_pub_key" -signature "$mod_signature" "$mod_unsigned" 2>&1 >/dev/null && rc="1"
431	# Clean up.
432	rm -f $mod_pub_key $mod_signature $mod_unsigned
433
434	# Check result.
435	[ "$rc" = "1" ] \|\| return
436
437	echo "1"
438	}
439
440	# Returns "1" if externally built module is available in the system and its
441	# version and revision number do match to current VirtualBox installation.
442	# Or empty string otherwise.
443	module_available()
444	{
445	mod="$1"
446	[ -n "$mod" ] \|\| return
447
448	[ "$VBOX_VERSION" = "$(module_version "$mod")" ] \|\| return
449	[ "$VBOX_REVISION" = "$(module_revision "$mod")" ] \|\| return
450
451	# Check if module belongs to VirtualBox installation.
452	#
453	# We have a convention that only modules from /lib/modules/*/misc
454	# belong to us. Modules from other locations are treated as
455	# externally built.
456	mod_path="$(module_path "$mod")"
457
458	# If module path points to a symbolic link, resolve actual file location.
459	[ -L "$mod_path" ] && mod_path="$(readlink -e -- "$mod_path")"
460
461	# File exists?
462	[ -f "$mod_path" ] \|\| return
463
464	# Extract last component of module path and check whether it is located
465	# outside of /lib/modules/*/misc.
466	mod_dir="$(dirname "$mod_path" \| sed 's;^.*/;;')"
467	[ "$mod_dir" = "misc" ] \|\| return
468
469	# In case if system is running in Secure Boot mode, check if module is signed.
470	if test -n "$HAVE_SEC_BOOT"; then
471	[ "$(module_signed "$mod")" = "1" ] \|\| return
472	fi
473
474	echo "1"
475	}
476
477	# Check if required modules are installed in the system and versions match.
478	setup_complete()
479	{
480	[ "$(module_available vboxdrv)" = "1" ] \|\| return
481	[ "$(module_available vboxnetflt)" = "1" ] \|\| return
482	[ "$(module_available vboxnetadp)" = "1" ] \|\| return
483
484	# All modules are in place.
485	echo "1"
486	}
487
488	start()
489	{
490	begin_msg "Starting VirtualBox services" console
491	if [ -d /proc/xen ]; then
492	failure "Running VirtualBox in a Xen environment is not supported"
493	fi
494	if test -n "$HAVE_SEC_BOOT" && test -z "$DEB_KEY_ENROLLED"; then
495	if test -n "$HAVE_DEB_KEY"; then
496	begin_msg "You must re-start your system to finish Debian secure boot set-up." console
497	else
498	begin_msg "You must sign these kernel modules before using VirtualBox:
499	$MODULE_LIST
500	See the documentation for your Linux distribution." console
501	fi
502	fi
503
504	if ! running vboxdrv; then
505
506	# Check if system already has matching modules installed.
507	[ "$(setup_complete)" = "1" ] \|\| setup
508
509	if ! rm -f $DEVICE; then
510	failure "Cannot remove $DEVICE"
511	fi
512	if ! $MODPROBE vboxdrv > /dev/null 2>&1; then
513	failure "modprobe vboxdrv failed. Please use 'dmesg' to find out why"
514	fi
515	sleep .2
516	fi
517	# ensure the character special exists
518	if [ ! -c $DEVICE ]; then
519	MAJOR=`sed -n 's;$[0-9]\+$ vboxdrv$;\1;p' /proc/devices`
520	if [ ! -z "$MAJOR" ]; then
521	MINOR=0
522	else
523	MINOR=`sed -n 's;$[0-9]\+$ vboxdrv$;\1;p' /proc/misc`
524	if [ ! -z "$MINOR" ]; then
525	MAJOR=10
526	fi
527	fi
528	if [ -z "$MAJOR" ]; then
529	rmmod vboxdrv 2>/dev/null
530	failure "Cannot locate the VirtualBox device"
531	fi
532	if ! mknod -m 0660 $DEVICE c $MAJOR $MINOR 2>/dev/null; then
533	rmmod vboxdrv 2>/dev/null
534	failure "Cannot create device $DEVICE with major $MAJOR and minor $MINOR"
535	fi
536	fi
537	# ensure permissions
538	if ! chown :"${GROUP}" $DEVICE 2>/dev/null; then
539	rmmod vboxpci 2>/dev/null
540	rmmod vboxnetadp 2>/dev/null
541	rmmod vboxnetflt 2>/dev/null
542	rmmod vboxdrv 2>/dev/null
543	failure "Cannot change group ${GROUP} for device $DEVICE"
544	fi
545	if ! $MODPROBE vboxnetflt > /dev/null 2>&1; then
546	failure "modprobe vboxnetflt failed. Please use 'dmesg' to find out why"
547	fi
548	if ! $MODPROBE vboxnetadp > /dev/null 2>&1; then
549	failure "modprobe vboxnetadp failed. Please use 'dmesg' to find out why"
550	fi
551	if test -e "${MODULE_SRC}/vboxpci" && ! $MODPROBE vboxpci > /dev/null 2>&1; then
552	failure "modprobe vboxpci failed. Please use 'dmesg' to find out why"
553	fi
554	# Create the /dev/vboxusb directory if the host supports that method
555	# of USB access. The USB code checks for the existance of that path.
556	if grep -q usb_device /proc/devices; then
557	mkdir -p -m 0750 /dev/vboxusb 2>/dev/null
558	chown root:vboxusers /dev/vboxusb 2>/dev/null
559	fi
560	# Remove any kernel modules left over from previously installed kernels.
561	cleanup only_old
562	succ_msg "VirtualBox services started"
563	}
564
565	stop()
566	{
567	begin_msg "Stopping VirtualBox services" console
568
569	if running vboxpci; then
570	if ! rmmod vboxpci 2>/dev/null; then
571	failure "Cannot unload module vboxpci"
572	fi
573	fi
574	if running vboxnetadp; then
575	if ! rmmod vboxnetadp 2>/dev/null; then
576	failure "Cannot unload module vboxnetadp"
577	fi
578	fi
579	if running vboxdrv; then
580	if running vboxnetflt; then
581	if ! rmmod vboxnetflt 2>/dev/null; then
582	failure "Cannot unload module vboxnetflt"
583	fi
584	fi
585	if ! rmmod vboxdrv 2>/dev/null; then
586	failure "Cannot unload module vboxdrv"
587	fi
588	if ! rm -f $DEVICE; then
589	failure "Cannot unlink $DEVICE"
590	fi
591	fi
592	succ_msg "VirtualBox services stopped"
593	}
594
595	# enter the following variables in /etc/default/virtualbox:
596	# SHUTDOWN_USERS="foo bar"
597	# check for running VMs of user foo and user bar
598	# SHUTDOWN=poweroff
599	# SHUTDOWN=acpibutton
600	# SHUTDOWN=savestate
601	# select one of these shutdown methods for running VMs
602	stop_vms()
603	{
604	wait=0
605	for i in $SHUTDOWN_USERS; do
606	# don't create the ipcd directory with wrong permissions!
607	if [ -d /tmp/.vbox-$i-ipc ]; then
608	export VBOX_IPC_SOCKETID="$i"
609	VMS=`$VBOXMANAGE --nologo list runningvms \| sed -e 's/^".".{$.*$}/\1/' 2>/dev/null`
610	if [ -n "$VMS" ]; then
611	if [ "$SHUTDOWN" = "poweroff" ]; then
612	begin_msg "Powering off remaining VMs"
613	for v in $VMS; do
614	$VBOXMANAGE --nologo controlvm $v poweroff
615	done
616	succ_msg "Remaining VMs powered off"
617	elif [ "$SHUTDOWN" = "acpibutton" ]; then
618	begin_msg "Sending ACPI power button event to remaining VMs"
619	for v in $VMS; do
620	$VBOXMANAGE --nologo controlvm $v acpipowerbutton
621	wait=30
622	done
623	succ_msg "ACPI power button event sent to remaining VMs"
624	elif [ "$SHUTDOWN" = "savestate" ]; then
625	begin_msg "Saving state of remaining VMs"
626	for v in $VMS; do
627	$VBOXMANAGE --nologo controlvm $v savestate
628	done
629	succ_msg "State of remaining VMs saved"
630	fi
631	fi
632	fi
633	done
634	# wait for some seconds when doing ACPI shutdown
635	if [ "$wait" -ne 0 ]; then
636	begin_msg "Waiting for $wait seconds for VM shutdown"
637	sleep $wait
638	succ_msg "Waited for $wait seconds for VM shutdown"
639	fi
640	}
641
642	cleanup()
643	{
644	# If this is set, only remove kernel modules for no longer installed
645	# kernels. Note that only generated kernel modules should be placed
646	# in /lib/modules/*/misc. Anything that we should not remove automatically
647	# should go elsewhere.
648	only_old="${1}"
649	for i in /lib/modules/*; do
650	# Check whether we are only cleaning up for uninstalled kernels.
651	test -n "${only_old}" && test -e "${i}/kernel/drivers" && continue
652
653	unset do_update
654	for j in $MODULE_LIST; do
655	for mod_ext in ko ko.gz ko.xz ko.zst; do
656	test -f "${i}/misc/${j}.${mod_ext}" && do_update=1 && rm -f "${i}/misc/${j}.${mod_ext}"
657	done
658	done
659
660	# Trigger depmod(8) only in case if directory content was modified
661	# and save a bit of run time.
662	test -n "$do_update" && depmod -a "$(basename "$i")" && sync
663
664	# Remove the kernel version folder if it was empty except for us.
665	test "`echo ${i}/misc/* ${i}/misc/.?* ${i}/* ${i}/.?*`" \
666	= "${i}/misc/* ${i}/misc/.. ${i}/misc ${i}/.." &&
667	rmdir "${i}/misc" "${i}" # We used to leave empty folders.
668	done
669	}
670
671	# setup_script
672	setup()
673	{
674	begin_msg "Building VirtualBox kernel modules" console
675	log "Building the main VirtualBox module."
676
677	# Detect if kernel was built with clang.
678	unset LLVM
679	vbox_cc_is_clang=$(kernel_get_config_opt "CONFIG_CC_IS_CLANG")
680	if test "${vbox_cc_is_clang}" = "y"; then
681	log "Using clang compiler."
682	export LLVM=1
683	fi
684
685	if ! myerr=`$BUILDINTMP \
686	--save-module-symvers /tmp/vboxdrv-Module.symvers \
687	--module-source "$MODULE_SRC/vboxdrv" \
688	--no-print-directory install 2>&1`; then
689	"${INSTALL_DIR}/check_module_dependencies.sh" \|\| exit 1
690	log "Error building the module:"
691	module_build_log "$myerr"
692	failure "Look at $LOG to find out what went wrong"
693	fi
694	log "Building the net filter module."
695	if ! myerr=`$BUILDINTMP \
696	--use-module-symvers /tmp/vboxdrv-Module.symvers \
697	--module-source "$MODULE_SRC/vboxnetflt" \
698	--no-print-directory install 2>&1`; then
699	log "Error building the module:"
700	module_build_log "$myerr"
701	failure "Look at $LOG to find out what went wrong"
702	fi
703	log "Building the net adaptor module."
704	if ! myerr=`$BUILDINTMP \
705	--use-module-symvers /tmp/vboxdrv-Module.symvers \
706	--module-source "$MODULE_SRC/vboxnetadp" \
707	--no-print-directory install 2>&1`; then
708	log "Error building the module:"
709	module_build_log "$myerr"
710	failure "Look at $LOG to find out what went wrong"
711	fi
712	if test -e "$MODULE_SRC/vboxpci"; then
713	log "Building the PCI pass-through module."
714	if ! myerr=`$BUILDINTMP \
715	--use-module-symvers /tmp/vboxdrv-Module.symvers \
716	--module-source "$MODULE_SRC/vboxpci" \
717	--no-print-directory install 2>&1`; then
718	log "Error building the module:"
719	module_build_log "$myerr"
720	failure "Look at $LOG to find out what went wrong"
721	fi
722	fi
723	rm -f /etc/vbox/module_not_compiled
724	depmod -a
725	sync
726	succ_msg "VirtualBox kernel modules built"
727
728	# Secure boot on Ubuntu, Debian and Oracle Linux.
729	if test -n "$HAVE_SEC_BOOT"; then
730	begin_msg "Signing VirtualBox kernel modules" console
731
732	# Generate new signing key if needed.
733	[ -n "$HAVE_UPDATE_SECUREBOOT_POLICY_TOOL" ] && SHIM_NOTRIGGER=y update-secureboot-policy --new-key
734
735	# Check if signing keys are in place.
736	if test ! -f "$DEB_PUB_KEY" \|\| ! test -f "$DEB_PRIV_KEY"; then
737	# update-secureboot-policy tool present in the system, but keys were not generated.
738	[ -n "$HAVE_UPDATE_SECUREBOOT_POLICY_TOOL" ] && fail_msg "
739
740	update-secureboot-policy tool does not generate signing keys
741	in your distribution, see below on how to generate them manually
742	"
743
744	# update-secureboot-policy not present in the system, recommend generate keys manually.
745	failure "
746
747	System is running in Secure Boot mode, however your distribution
748	does not provide tools for automatic generation of keys needed for
749	modules signing. Please consider to generate and enroll them manually:
750
751	sudo mkdir -p /var/lib/shim-signed/mok
752	sudo openssl req -nodes -new -x509 -newkey rsa:2048 -outform DER -addext \"extendedKeyUsage=codeSigning\" -keyout $DEB_PRIV_KEY -out $DEB_PUB_KEY
753	sudo mokutil --import $DEB_PUB_KEY
754	sudo reboot
755
756	Restart \"rcvboxdrv setup\" after system is rebooted
757	"
758	fi
759
760	# Check if signing tool is available.
761	[ -n "$SIGN_TOOL" ] \|\| failure "Unable to find signing tool"
762
763	# Get kernel signature hash algorithm from kernel config and validate it.
764	sig_hashalgo=$(kernel_module_sig_hash)
765	[ "$(module_sig_hash_supported $sig_hashalgo)" = "1" ] \
766	\|\| failure "Unsupported kernel signature hash algorithm $sig_hashalgo"
767
768	# Sign modules.
769	for i in $MODULE_LIST; do
770	"$SIGN_TOOL" "$sig_hashalgo" "$DEB_PRIV_KEY" "$DEB_PUB_KEY" \
771	/lib/modules/"$KERN_VER"/misc/"$i".ko 2>/dev/null \|\| failure "Unable to sign $i.ko"
772	done
773
774	# Enroll signing key if needed.
775	if test -n "$HAVE_UPDATE_SECUREBOOT_POLICY_TOOL"; then
776	# update-secureboot-policy "expects" DKMS modules.
777	# Work around this and talk to the authors as soon
778	# as possible to fix it.
779	mkdir -p /var/lib/dkms/vbox-temp
780	update-secureboot-policy --enroll-key 2>/dev/null \|\|
781	begin_msg "Failed to enroll secure boot key." console
782	rmdir -p /var/lib/dkms/vbox-temp 2>/dev/null
783
784	# Indicate that key has been enrolled and reboot is needed.
785	HAVE_DEB_KEY=true
786	fi
787	succ_msg "Signing completed"
788	fi
789	}
790
791	dmnstatus()
792	{
793	if running vboxdrv; then
794	str="vboxdrv"
795	if running vboxnetflt; then
796	str="$str, vboxnetflt"
797	if running vboxnetadp; then
798	str="$str, vboxnetadp"
799	fi
800	fi
801	if running vboxpci; then
802	str="$str, vboxpci"
803	fi
804	echo "VirtualBox kernel modules ($str) are loaded."
805	for i in $SHUTDOWN_USERS; do
806	# don't create the ipcd directory with wrong permissions!
807	if [ -d /tmp/.vbox-$i-ipc ]; then
808	export VBOX_IPC_SOCKETID="$i"
809	VMS=`$VBOXMANAGE --nologo list runningvms \| sed -e 's/^".".{$.*$}/\1/' 2>/dev/null`
810	if [ -n "$VMS" ]; then
811	echo "The following VMs are currently running:"
812	for v in $VMS; do
813	echo " $v"
814	done
815	fi
816	fi
817	done
818	else
819	echo "VirtualBox kernel module is not loaded."
820	fi
821	}
822
823	case "$1" in
824	start)
825	start
826	;;
827	stop)
828	stop_vms
829	stop
830	;;
831	stop_vms)
832	stop_vms
833	;;
834	restart)
835	stop && start
836	;;
837	setup)
838	test -n "${2}" && export KERN_VER="${2}"
839	# Create udev rule and USB device nodes.
840	## todo Wouldn't it make more sense to install the rule to /lib/udev? This
841	## is not a user-created configuration file after all.
842	## todo Do we need a udev rule to create /dev/vboxdrv[u] at all? We have
843	## working fall-back code here anyway, and the "right" code is more complex
844	## than the fall-back. Unnecessary duplication?
845	stop && cleanup
846	setup_usb "$GROUP" "$DEVICE_MODE" "$INSTALL_DIR"
847	start
848	;;
849	cleanup)
850	stop && cleanup
851	cleanup_usb
852	;;
853	force-reload)
854	stop
855	start
856	;;
857	status)
858	dmnstatus
859	;;
860	*)
861	echo "Usage: $0 {start\|stop\|stop_vms\|restart\|setup\|cleanup\|force-reload\|status}"
862	exit 1
863	esac
864
865	exit 0

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source: vbox/trunk/src/VBox/Installer/linux/vboxdrv.sh@ 98565

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