4 .
/lib
/functions
/system.sh
5 .
/usr
/share
/libubox
/jshn.sh
8 CONF_TAR
=/tmp
/sysupgrade.tgz
9 ETCBACKUP_DIR
=/etc
/backup
10 INSTALLED_PACKAGES
=${ETCBACKUP_DIR}/installed_packages.txt
11 COMMAND
=/lib
/upgrade
/do_stage2
27 # Globals accessed in other files
29 export MTD_CONFIG_ARGS
=""
33 export IGNORE_MINOR_COMPAT
=0
35 export CONFFILES
=/tmp
/sysupgrade.conffiles
40 -i) export INTERACTIVE
=1;;
41 -v) export VERBOSE
="$(($VERBOSE + 1))";;
42 -q) export VERBOSE
="$(($VERBOSE - 1))";;
43 -n) export SAVE_CONFIG
=0;;
44 -c) SAVE_OVERLAY
=1 SAVE_OVERLAY_PATH
=/etc
;;
45 -o) SAVE_OVERLAY
=1 SAVE_OVERLAY_PATH
=/;;
46 -p) SAVE_PARTITIONS
=0;;
47 -k) SAVE_INSTALLED_PKGS
=1;;
48 -u) SKIP_UNCHANGED
=1;;
49 -b|
--create-backup) CONF_BACKUP
="$2" NEED_IMAGE
=1; shift;;
50 -r|
--restore-backup) CONF_RESTORE
="$2" NEED_IMAGE
=1; shift;;
51 -l|
--list-backup) CONF_BACKUP_LIST
=1;;
52 -f) CONF_IMAGE
="$2"; shift;;
53 -F|
--force) export FORCE
=1;;
55 -h|
--help) HELP
=1; break;;
56 --ignore-minor-compat-version) export IGNORE_MINOR_COMPAT
=1;;
58 echo "Invalid option: $1" >&2
68 Usage: $0 [<upgrade-option>...] <image file or URL>
69 $0 [-q] [-i] [-c] [-u] [-o] [-k] <backup-command> <file>
72 -f <config> restore configuration from .tar.gz (file or url)
74 -c attempt to preserve all changed files in /etc/
75 -o attempt to preserve all changed files in /, except those
76 from packages but including changed confs.
77 -u skip from backup files that are equal to those in /rom
78 -n do not save configuration over reflash
79 -p do not attempt to restore the partition table after flash.
80 -k include in backup a list of current installed packages at
83 Verify image and config .tar.gz but do not actually flash.
85 Flash image even if image checks fail, this is dangerous!
86 --ignore-minor-compat-version
87 Flash image even if the minor compat version is incompatible.
90 -h | --help display this help
93 -b | --create-backup <file>
94 create .tar.gz of files specified in sysupgrade.conf
95 then exit. Does not flash an image. If file is '-',
96 i.e. stdout, verbosity is set to 0 (i.e. quiet).
97 -r | --restore-backup <file>
98 restore a .tar.gz created with sysupgrade -b
99 then exit. Does not flash an image. If file is '-',
100 the archive is read from stdin.
102 list the files that would be backed up when calling
103 sysupgrade -b. Does not create a backup file.
110 if [ $HELP -gt 0 ]; then
115 if [ -z "$IMAGE" -a -z "$NEED_IMAGE" -a $CONF_BACKUP_LIST -eq 0 ]; then
120 [ -n "$IMAGE" -a -n "$NEED_IMAGE" ] && {
122 -b|--create-backup and -r|--restore-backup do not perform a firmware upgrade.
123 Do not specify both -b|-r and a firmware image.
128 # prevent messages from clobbering the tarball when using stdout
129 [ "$CONF_BACKUP" = "-" ] && export VERBOSE
=0
134 BEGIN { conffiles = 0 }
135 /^Conffiles:/ { conffiles = 1; next }
136 !/^ / { conffiles = 0; next }
137 conffiles == 1 { print }
138 ' /usr
/lib
/opkg
/status
141 list_changed_conffiles
() {
142 # Cannot handle spaces in filenames - but opkg cannot either...
143 list_conffiles |
while read file csum
; do
144 [ -r "$file" ] ||
continue
146 echo "${csum} ${file}" | busybox sha256sum
-sc - ||
echo "$file"
150 list_static_conffiles
() {
153 find $
(sed -ne '/^[[:space:]]*$/d; /^#/d; p' \
154 /etc
/sysupgrade.conf
/lib
/upgrade
/keep.d
/* 2>/dev
/null
) \
155 \
( -type f
-o -type l \
) $filter 2>/dev
/null
158 build_list_of_backup_config_files
() {
161 ( list_static_conffiles
"$find_filter"; list_changed_conffiles
) |
166 build_list_of_backup_overlay_files
() {
169 local packagesfiles
=$1.packagesfiles
170 touch "$packagesfiles"
172 if [ "$SAVE_OVERLAY_PATH" = / ]; then
173 local conffiles
=$1.conffiles
174 local keepfiles
=$1.keepfiles
176 list_conffiles | cut
-f2 -d ' ' |
sort -u > "$conffiles"
178 # backup files from /etc/sysupgrade.conf and /lib/upgrade/keep.d, but
179 # ignore those aready controlled by opkg conffiles
180 list_static_conffiles |
sort -u |
181 grep -h -v -x -F -f $conffiles > "$keepfiles"
183 # backup conffiles, but only those changed if '-u'
184 [ $SKIP_UNCHANGED = 1 ] &&
185 list_changed_conffiles |
sort -u > "$conffiles"
187 # do not backup files from packages, except those listed
188 # in conffiles and keep.d
190 find /usr
/lib
/opkg
/info
-type f
-name "*.list" -exec cat {} \
;
191 find /usr
/lib
/opkg
/info
-type f
-name "*.control" -exec sed \
192 -ne '/^Alternatives/{s/^Alternatives: //;s/, /\n/g;p}' {} \
; |
194 } |
grep -v -x -F -f $conffiles |
195 grep -v -x -F -f $keepfiles |
sort -u > "$packagesfiles"
196 rm -f "$keepfiles" "$conffiles"
199 # busybox grep bug when file is empty
200 [ -s "$packagesfiles" ] ||
echo > $packagesfiles
202 ( cd /overlay
/upper
/; find .
$SAVE_OVERLAY_PATH \
( -type f
-o -type l \
) $find_filter |
sed \
204 -e '\,^/etc/board.json$,d' \
205 -e '\,/[^/]*-opkg$,d' \
206 -e '\,^/etc/urandom.seed$,d' \
207 -e "\,^$INSTALLED_PACKAGES$,d" \
208 -e '\,^/usr/lib/opkg/.*,d' \
209 ) |
grep -v -x -F -f $packagesfiles > "$file"
211 rm -f "$packagesfiles"
216 if [ $SAVE_OVERLAY = 1 ]; then
217 [ ! -d /overlay
/upper
/etc
] && {
218 echo "Cannot find '/overlay/upper/etc', required for '-c' or '-o'" >&2
221 sysupgrade_init_conffiles
="build_list_of_backup_overlay_files"
223 sysupgrade_init_conffiles
="build_list_of_backup_config_files"
227 if [ $SKIP_UNCHANGED = 1 ]; then
229 echo "'/rom/' is required by '-u'"
232 find_filter
='( ( -exec test -e /rom/{} ; -exec cmp -s /{} /rom/{} ; ) -o -print )'
237 create_backup_archive
() {
241 [ "$(rootfs_type)" = "tmpfs" ] && {
242 echo "Cannot save config while running from ramdisk." >&2
243 ask_bool
0 "Abort" && exit
246 run_hooks
"$CONFFILES" $sysupgrade_init_conffiles
247 ask_bool
0 "Edit config file list" && vi
"$CONFFILES"
249 [ "$conf_tar" != "-" ] || conf_tar
=""
251 v
"Saving config files..."
252 [ "$VERBOSE" -gt 1 ] && TAR_V
="v" || TAR_V
=""
253 sed -i -e 's,^/,,' "$CONFFILES"
255 for service
in /etc
/init.d
/*; do
256 if ! $service enabled
; then
257 disabled
="$disabled$service disable\n"
260 disabled
="$disabled\nexit 0"
261 tar_print_member
"/etc/uci-defaults/10_disable_services" "$(echo -e $disabled)"
263 # Part of archive with installed packages info
264 if [ "$SAVE_INSTALLED_PKGS" -eq 1 ]; then
265 # Format: pkg-name<TAB>{rom,overlay,unknown}
266 # rom is used for pkgs in /rom, even if updated later
267 tar_print_member
"$INSTALLED_PACKAGES" "$(find /usr/lib/opkg/info -name "*.control
" \( \
268 \( -exec test -f /rom/{} \; -exec echo {} rom \; \) -o \
269 \( -exec test -f /overlay/upper/{} \; -exec echo {} overlay \; \) -o \
270 \( -exec echo {} unknown \; \) \
271 \) | sed -e 's,.*/,,;s/\.control /\t/')"
274 # Rest of archive with config files and ending padding
275 tar c
${TAR_V} -C / -T "$CONFFILES"
276 } |
gzip > "${conf_tar:-/proc/self/fd/1}"
279 if [ "$err" -ne 0 ]; then
280 echo "Failed to create the configuration backup."
281 [ -f "$conf_tar" ] && rm -f "$conf_tar"
289 if [ $CONF_BACKUP_LIST -eq 1 ]; then
290 run_hooks
"$CONFFILES" $sysupgrade_init_conffiles
291 [ "$SAVE_INSTALLED_PKGS" -eq 1 ] && echo ${INSTALLED_PACKAGES} >> "$CONFFILES"
297 if [ -n "$CONF_BACKUP" ]; then
298 create_backup_archive
"$CONF_BACKUP"
302 if [ -n "$CONF_RESTORE" ]; then
303 if [ "$CONF_RESTORE" != "-" ] && [ ! -f "$CONF_RESTORE" ]; then
304 echo "Backup archive '$CONF_RESTORE' not found." >&2
308 [ "$VERBOSE" -gt 1 ] && TAR_V
="v" || TAR_V
=""
309 v
"Restoring config files..."
310 tar -C / -x${TAR_V}zf
"$CONF_RESTORE"
314 type platform_check_image
>/dev
/null
2>/dev
/null ||
{
315 echo "Firmware upgrade is not implemented for this platform." >&2
322 wget
-O/tmp
/sysupgrade.img
"$IMAGE" ||
exit 1
323 IMAGE
=/tmp
/sysupgrade.img
327 IMAGE
="$(readlink -f "$IMAGE")"
331 echo "Image file not found." >&2
336 v
"Image not in /tmp, copying..."
337 cp -f "$IMAGE" /tmp
/sysupgrade.img
338 IMAGE
=/tmp
/sysupgrade.img
342 json_load
"$(/usr/libexec/validate_firmware_image "$IMAGE")" ||
{
343 echo "Failed to check image"
346 json_get_var valid
"valid"
347 [ "$valid" -eq 0 ] && {
348 if [ $FORCE -eq 1 ]; then
349 echo "Image check failed but --force given - will update anyway!" >&2
351 echo "Image check failed." >&2
356 if [ -n "$CONF_IMAGE" ]; then
357 case "$(get_magic_word $CONF_IMAGE cat)" in
361 echo "Invalid config file. Please use only .tar.gz files" >&2
365 get_image
"$CONF_IMAGE" "cat" > "$CONF_TAR"
367 elif ask_bool
$SAVE_CONFIG "Keep config files over reflash"; then
368 [ $TEST -eq 1 ] || create_backup_archive
"$CONF_TAR" ||
exit
371 [ $TEST -eq 1 ] ||
rm -f "$CONF_TAR"
375 if [ $TEST -eq 1 ]; then
379 install_bin
/sbin
/upgraded
380 v
"Commencing upgrade. Closing all shell sessions."
382 if [ -n "$FAILSAFE" ]; then
383 printf '%s\x00%s\x00%s' "$RAM_ROOT" "$IMAGE" "$COMMAND" >/tmp
/sysupgrade
384 lock
-u /tmp
/.failsafe
387 json_add_string prefix
"$RAM_ROOT"
388 json_add_string path
"$IMAGE"
389 [ $FORCE -eq 1 ] && json_add_boolean force
1
390 [ $SAVE_CONFIG -eq 1 ] && json_add_string backup
"$CONF_TAR"
391 json_add_string
command "$COMMAND"
392 json_add_object options
393 json_add_int save_partitions
"$SAVE_PARTITIONS"
396 ubus call system sysupgrade
"$(json_dump)"