4 .
/lib
/functions
/system.sh
5 .
/usr
/share
/libubox
/jshn.sh
9 export MTD_CONFIG_ARGS
=""
14 export SAVE_OVERLAY_PATH
=
15 export SAVE_PARTITIONS
=1
16 export SAVE_INSTALLED_PKGS
=0
17 export SKIP_UNCHANGED
=0
19 export CONF_BACKUP_LIST
=0
26 export UMOUNT_ETCBACKUP_DIR
=0
31 -i) export INTERACTIVE
=1;;
32 -v) export VERBOSE
="$(($VERBOSE + 1))";;
33 -q) export VERBOSE
="$(($VERBOSE - 1))";;
34 -n) export SAVE_CONFIG
=0;;
35 -c) export SAVE_OVERLAY
=1 SAVE_OVERLAY_PATH
=/etc
;;
36 -o) export SAVE_OVERLAY
=1 SAVE_OVERLAY_PATH
=/;;
37 -p) export SAVE_PARTITIONS
=0;;
38 -k) export SAVE_INSTALLED_PKGS
=1;;
39 -u) export SKIP_UNCHANGED
=1;;
40 -b|
--create-backup) export CONF_BACKUP
="$2" NEED_IMAGE
=1; shift;;
41 -r|
--restore-backup) export CONF_RESTORE
="$2" NEED_IMAGE
=1; shift;;
42 -l|
--list-backup) export CONF_BACKUP_LIST
=1;;
43 -f) export CONF_IMAGE
="$2"; shift;;
44 -F|
--force) export FORCE
=1;;
45 -T|
--test) export TEST
=1;;
46 -h|
--help) export HELP
=1; break;;
48 echo "Invalid option: $1" >&2
56 export CONFFILES
=/tmp
/sysupgrade.conffiles
57 export CONF_TAR
=/tmp
/sysupgrade.tgz
58 export ETCBACKUP_DIR
=/etc
/backup
59 export INSTALLED_PACKAGES
=${ETCBACKUP_DIR}/installed_packages.txt
63 [ -z "$IMAGE" -a -z "$NEED_IMAGE" -a $CONF_BACKUP_LIST -eq 0 -o $HELP -gt 0 ] && {
65 Usage: $0 [<upgrade-option>...] <image file or URL>
66 $0 [-q] [-i] [-c] [-u] [-o] [-k] <backup-command> <file>
69 -f <config> restore configuration from .tar.gz (file or url)
71 -c attempt to preserve all changed files in /etc/
72 -o attempt to preserve all changed files in /, except those
73 from packages but including changed confs.
74 -u skip from backup files that are equal to those in /rom
75 -n do not save configuration over reflash
76 -p do not attempt to restore the partition table after flash.
77 -k include in backup a list of current installed packages at
80 Verify image and config .tar.gz but do not actually flash.
82 Flash image even if image checks fail, this is dangerous!
85 -h | --help display this help
88 -b | --create-backup <file>
89 create .tar.gz of files specified in sysupgrade.conf
90 then exit. Does not flash an image. If file is '-',
91 i.e. stdout, verbosity is set to 0 (i.e. quiet).
92 -r | --restore-backup <file>
93 restore a .tar.gz created with sysupgrade -b
94 then exit. Does not flash an image. If file is '-',
95 the archive is read from stdin.
97 list the files that would be backed up when calling
98 sysupgrade -b. Does not create a backup file.
104 [ -n "$IMAGE" -a -n "$NEED_IMAGE" ] && {
106 -b|--create-backup and -r|--restore-backup do not perform a firmware upgrade.
107 Do not specify both -b|-r and a firmware image.
112 # prevent messages from clobbering the tarball when using stdout
113 [ "$CONF_BACKUP" = "-" ] && export VERBOSE
=0
118 BEGIN { conffiles = 0 }
119 /^Conffiles:/ { conffiles = 1; next }
120 !/^ / { conffiles = 0; next }
121 conffiles == 1 { print }
122 ' /usr
/lib
/opkg
/status
125 list_changed_conffiles
() {
126 # Cannot handle spaces in filenames - but opkg cannot either...
127 list_conffiles |
while read file csum
; do
128 [ -r "$file" ] ||
continue
130 echo "${csum} ${file}" | sha256sum
-sc - ||
echo "$file"
136 ( find $
(sed -ne '/^[[:space:]]*$/d; /^#/d; p' \
137 /etc
/sysupgrade.conf
/lib
/upgrade
/keep.d
/* 2>/dev
/null
) \
138 \
( -type f
-o -type l \
) $find_filter 2>/dev
/null
;
139 list_changed_conffiles
) |
sort -u > "$file"
146 local packagesfiles
=$1.packagesfiles
147 touch "$packagesfiles"
149 if [ "$SAVE_OVERLAY_PATH" = / ]; then
150 local conffiles
=$1.conffiles
151 local keepfiles
=$1.keepfiles
153 list_conffiles | cut
-f2 -d ' ' |
sort -u > "$conffiles"
155 # backup files from /etc/sysupgrade.conf and /lib/upgrade/keep.d, but
156 # ignore those aready controlled by opkg conffiles
157 find $
(sed -ne '/^[[:space:]]*$/d; /^#/d; p' \
158 /etc
/sysupgrade.conf
/lib
/upgrade
/keep.d
/* 2>/dev
/null
) \
159 \
( -type f
-o -type l \
) 2>/dev
/null |
sort -u |
160 grep -h -v -x -F -f $conffiles > "$keepfiles"
162 # backup conffiles, but only those changed if '-u'
163 [ $SKIP_UNCHANGED = 1 ] &&
164 list_changed_conffiles |
sort -u > "$conffiles"
166 # do not backup files from packages, except those listed
167 # in conffiles and keep.d
169 find /usr
/lib
/opkg
/info
-type f
-name "*.list" -exec cat {} \
;
170 find /usr
/lib
/opkg
/info
-type f
-name "*.control" -exec sed \
171 -ne '/^Alternatives/{s/^Alternatives: //;s/, /\n/g;p}' {} \
; |
173 } |
grep -v -x -F -f $conffiles |
174 grep -v -x -F -f $keepfiles |
sort -u > "$packagesfiles"
175 rm -f "$keepfiles" "$conffiles"
178 # busybox grep bug when file is empty
179 [ -s "$packagesfiles" ] ||
echo > $packagesfiles
181 ( cd /overlay
/upper
/; find .
$SAVE_OVERLAY_PATH \
( -type f
-o -type l \
) $find_filter |
sed \
183 -e '\,^/etc/board.json$,d' \
184 -e '\,/[^/]*-opkg$,d' \
185 -e '\,^/etc/urandom.seed$,d' \
186 -e "\,^$INSTALLED_PACKAGES$,d" \
187 -e '\,^/usr/lib/opkg/.*,d' \
188 ) |
grep -v -x -F -f $packagesfiles > "$file"
190 rm -f "$packagesfiles"
195 if [ $SAVE_OVERLAY = 1 ]; then
196 [ ! -d /overlay
/upper
/etc
] && {
197 echo "Cannot find '/overlay/upper/etc', required for '-c'" >&2
200 sysupgrade_init_conffiles
="add_overlayfiles"
202 sysupgrade_init_conffiles
="add_conffiles"
206 if [ $SKIP_UNCHANGED = 1 ]; then
208 echo "'/rom/' is required by '-u'"
211 find_filter
='( ( -exec test -e /rom/{} ; -exec cmp -s /{} /rom/{} ; ) -o -print )'
216 do_save_conffiles
() {
219 [ -z "$(rootfs_type)" ] && {
220 echo "Cannot save config while running from ramdisk." >&2
221 ask_bool
0 "Abort" && exit
225 run_hooks
"$CONFFILES" $sysupgrade_init_conffiles
226 ask_bool
0 "Edit config file list" && vi
"$CONFFILES"
228 if [ "$SAVE_INSTALLED_PKGS" -eq 1 ]; then
229 echo "${INSTALLED_PACKAGES}" >> "$CONFFILES"
230 mkdir
-p "$ETCBACKUP_DIR"
231 # Avoid touching filesystem on each backup
232 RAMFS
="$(mktemp -d -t sysupgrade.XXXXXX)"
233 mkdir
-p "$RAMFS/upper" "$RAMFS/work"
234 mount
-t overlay overlay
-o lowerdir
=$ETCBACKUP_DIR,upperdir
=$RAMFS/upper
,workdir
=$RAMFS/work
$ETCBACKUP_DIR &&
235 UMOUNT_ETCBACKUP_DIR
=1 ||
{
236 echo "Cannot mount '$ETCBACKUP_DIR' as tmpfs to avoid touching disk while saving the list of installed packages." >&2
237 ask_bool
0 "Abort" && exit
240 # Format: pkg-name<TAB>{rom,overlay,unkown}
241 # rom is used for pkgs in /rom, even if updated later
242 find /usr
/lib
/opkg
/info
-name "*.control" \
( \
243 \
( -exec test -f /rom
/{} \
; -exec echo {} rom \
; \
) -o \
244 \
( -exec test -f /overlay
/upper
/{} \
; -exec echo {} overlay \
; \
) -o \
245 \
( -exec echo {} unknown \
; \
) \
246 \
) |
sed -e 's,.*/,,;s/\.control /\t/' > ${INSTALLED_PACKAGES}
249 v
"Saving config files..."
250 [ "$VERBOSE" -gt 1 ] && TAR_V
="v" || TAR_V
=""
251 tar c
${TAR_V}zf
"$conf_tar" -T "$CONFFILES" 2>/dev
/null
252 if [ "$?" -ne 0 ]; then
253 echo "Failed to create the configuration backup."
258 [ "$UMOUNT_ETCBACKUP_DIR" -eq 1 ] && {
259 umount
"$ETCBACKUP_DIR"
265 if [ $CONF_BACKUP_LIST -eq 1 ]; then
266 run_hooks
"$CONFFILES" $sysupgrade_init_conffiles
267 [ "$SAVE_INSTALLED_PKGS" -eq 1 ] && echo ${INSTALLED_PACKAGES} >> "$CONFFILES"
273 if [ -n "$CONF_BACKUP" ]; then
274 do_save_conffiles
"$CONF_BACKUP"
278 if [ -n "$CONF_RESTORE" ]; then
279 if [ "$CONF_RESTORE" != "-" ] && [ ! -f "$CONF_RESTORE" ]; then
280 echo "Backup archive '$CONF_RESTORE' not found." >&2
284 [ "$VERBOSE" -gt 1 ] && TAR_V
="v" || TAR_V
=""
285 tar -C / -x${TAR_V}zf
"$CONF_RESTORE"
289 type platform_check_image
>/dev
/null
2>/dev
/null ||
{
290 echo "Firmware upgrade is not implemented for this platform." >&2
297 wget
-O/tmp
/sysupgrade.img
"$IMAGE" ||
exit 1
298 IMAGE
=/tmp
/sysupgrade.img
302 IMAGE
="$(readlink -f "$IMAGE")"
306 echo "Image file not found." >&2
311 v
"Image not in /tmp, copying..."
312 cp -f "$IMAGE" /tmp
/sysupgrade.img
313 IMAGE
=/tmp
/sysupgrade.img
317 json_load
"$(/usr/libexec/validate_firmware_image "$IMAGE")" ||
{
318 echo "Failed to check image"
321 json_get_var valid
"valid"
322 [ "$valid" -eq 0 ] && {
323 if [ $FORCE -eq 1 ]; then
324 echo "Image check failed but --force given - will update anyway!" >&2
326 echo "Image check failed." >&2
331 if [ -n "$CONF_IMAGE" ]; then
332 case "$(get_magic_word $CONF_IMAGE cat)" in
336 echo "Invalid config file. Please use only .tar.gz files" >&2
340 get_image
"$CONF_IMAGE" "cat" > "$CONF_TAR"
342 elif ask_bool
$SAVE_CONFIG "Keep config files over reflash"; then
343 [ $TEST -eq 1 ] || do_save_conffiles
"$CONF_TAR"
346 [ $TEST -eq 1 ] ||
rm -f "$CONF_TAR"
350 if [ $TEST -eq 1 ]; then
354 install_bin
/sbin
/upgraded
355 v
"Commencing upgrade. Closing all shell sessions."
357 COMMAND
='/lib/upgrade/do_stage2'
359 if [ -n "$FAILSAFE" ]; then
360 printf '%s\x00%s\x00%s' "$RAM_ROOT" "$IMAGE" "$COMMAND" >/tmp
/sysupgrade
361 lock
-u /tmp
/.failsafe
364 json_add_string prefix
"$RAM_ROOT"
365 json_add_string path
"$IMAGE"
366 [ $FORCE -eq 1 ] && json_add_boolean force
1
367 [ $SAVE_CONFIG -eq 1 ] && json_add_string backup
"$CONF_TAR"
368 json_add_string
command "$COMMAND"
369 json_add_object options
370 json_add_int save_partitions
"$SAVE_PARTITIONS"
373 ubus call system sysupgrade
"$(json_dump)"