aboutsummaryrefslogtreecommitdiffstats
path: root/package/base-files/files/sbin/sysupgrade
diff options
context:
space:
mode:
Diffstat (limited to 'package/base-files/files/sbin/sysupgrade')
-rwxr-xr-xpackage/base-files/files/sbin/sysupgrade240
1 files changed, 240 insertions, 0 deletions
diff --git a/package/base-files/files/sbin/sysupgrade b/package/base-files/files/sbin/sysupgrade
new file mode 100755
index 0000000..ef83c4b
--- /dev/null
+++ b/package/base-files/files/sbin/sysupgrade
@@ -0,0 +1,240 @@
+#!/bin/sh
+. /lib/functions.sh
+. /lib/functions/system.sh
+
+# initialize defaults
+RAMFS_COPY_BIN="" # extra programs for temporary ramfs root
+RAMFS_COPY_DATA="" # extra data files
+export MTD_CONFIG_ARGS=""
+export INTERACTIVE=0
+export VERBOSE=1
+export SAVE_CONFIG=1
+export SAVE_OVERLAY=0
+export DELAY=
+export CONF_IMAGE=
+export CONF_BACKUP_LIST=0
+export CONF_BACKUP=
+export CONF_RESTORE=
+export NEED_IMAGE=
+export HELP=0
+export FORCE=0
+export TEST=0
+
+# parse options
+while [ -n "$1" ]; do
+ case "$1" in
+ -i) export INTERACTIVE=1;;
+ -d) export DELAY="$2"; shift;;
+ -v) export VERBOSE="$(($VERBOSE + 1))";;
+ -q) export VERBOSE="$(($VERBOSE - 1))";;
+ -n) export SAVE_CONFIG=0;;
+ -c) export SAVE_OVERLAY=1;;
+ -b|--create-backup) export CONF_BACKUP="$2" NEED_IMAGE=1; shift;;
+ -r|--restore-backup) export CONF_RESTORE="$2" NEED_IMAGE=1; shift;;
+ -l|--list-backup) export CONF_BACKUP_LIST=1; break;;
+ -f) export CONF_IMAGE="$2"; shift;;
+ -F|--force) export FORCE=1;;
+ -T|--test) export TEST=1;;
+ -h|--help) export HELP=1; break;;
+ -*)
+ echo "Invalid option: $1"
+ exit 1
+ ;;
+ *) break;;
+ esac
+ shift;
+done
+
+export CONFFILES=/tmp/sysupgrade.conffiles
+export CONF_TAR=/tmp/sysupgrade.tgz
+
+export ARGV="$*"
+export ARGC="$#"
+
+[ -z "$ARGV" -a -z "$NEED_IMAGE" -o $HELP -gt 0 ] && {
+ cat <<EOF
+Usage: $0 [<upgrade-option>...] <image file or URL>
+ $0 [-q] [-i] <backup-command> <file>
+
+upgrade-option:
+ -d <delay> add a delay before rebooting
+ -f <config> restore configuration from .tar.gz (file or url)
+ -i interactive mode
+ -c attempt to preserve all changed files in /etc/
+ -n do not save configuration over reflash
+ -T | --test
+ Verify image and config .tar.gz but do not actually flash.
+ -F | --force
+ Flash image even if image checks fail, this is dangerous!
+ -q less verbose
+ -v more verbose
+ -h | --help display this help
+
+backup-command:
+ -b | --create-backup <file>
+ create .tar.gz of files specified in sysupgrade.conf
+ then exit. Does not flash an image. If file is '-',
+ i.e. stdout, verbosity is set to 0 (i.e. quiet).
+ -r | --restore-backup <file>
+ restore a .tar.gz created with sysupgrade -b
+ then exit. Does not flash an image. If file is '-',
+ the archive is read from stdin.
+ -l | --list-backup
+ list the files that would be backed up when calling
+ sysupgrade -b. Does not create a backup file.
+
+EOF
+ exit 1
+}
+
+[ -n "$ARGV" -a -n "$NEED_IMAGE" ] && {
+ cat <<-EOF
+ -b|--create-backup and -r|--restore-backup do not perform a firmware upgrade.
+ Do not specify both -b|-r and a firmware image.
+ EOF
+ exit 1
+}
+
+# prevent messages from clobbering the tarball when using stdout
+[ "$CONF_BACKUP" = "-" ] && export VERBOSE=0
+
+add_uci_conffiles() {
+ local file="$1"
+ ( find $(sed -ne '/^[[:space:]]*$/d; /^#/d; p' \
+ /etc/sysupgrade.conf /lib/upgrade/keep.d/* 2>/dev/null) \
+ -type f -o -type l 2>/dev/null;
+ opkg list-changed-conffiles ) | sort -u > "$file"
+ return 0
+}
+
+add_overlayfiles() {
+ local file="$1"
+ if [ -d /overlay/upper ]; then
+ local overlaydir="/overlay/upper"
+ else
+ local overlaydir="/overlay"
+ fi
+ find $overlaydir/etc/ -type f -o -type l | sed \
+ -e 's,^/overlay/,/,' \
+ -e '\,/META_[a-zA-Z0-9]*$,d' \
+ -e '\,/functions.sh$,d' \
+ -e '\,/[^/]*-opkg$,d' \
+ > "$file"
+ return 0
+}
+
+# hooks
+sysupgrade_image_check="platform_check_image"
+[ $SAVE_OVERLAY = 0 -o ! -d /overlay/etc ] && \
+ sysupgrade_init_conffiles="add_uci_conffiles" || \
+ sysupgrade_init_conffiles="add_overlayfiles"
+
+include /lib/upgrade
+
+[ "$1" = "nand" ] && nand_upgrade_stage2 $@
+
+do_save_conffiles() {
+ local conf_tar="${1:-$CONF_TAR}"
+
+ [ -z "$(rootfs_type)" ] && {
+ echo "Cannot save config while running from ramdisk."
+ ask_bool 0 "Abort" && exit
+ return 0
+ }
+ run_hooks "$CONFFILES" $sysupgrade_init_conffiles
+ ask_bool 0 "Edit config file list" && vi "$CONFFILES"
+
+ v "Saving config files..."
+ [ "$VERBOSE" -gt 1 ] && TAR_V="v" || TAR_V=""
+ tar c${TAR_V}zf "$conf_tar" -T "$CONFFILES" 2>/dev/null
+
+ rm -f "$CONFFILES"
+}
+
+if [ $CONF_BACKUP_LIST -eq 1 ]; then
+ add_uci_conffiles "$CONFFILES"
+ cat "$CONFFILES"
+ rm -f "$CONFFILES"
+ exit 0
+fi
+
+if [ -n "$CONF_BACKUP" ]; then
+ do_save_conffiles "$CONF_BACKUP"
+ exit $?
+fi
+
+if [ -n "$CONF_RESTORE" ]; then
+ if [ "$CONF_RESTORE" != "-" ] && [ ! -f "$CONF_RESTORE" ]; then
+ echo "Backup archive '$CONF_RESTORE' not found."
+ exit 1
+ fi
+
+ [ "$VERBOSE" -gt 1 ] && TAR_V="v" || TAR_V=""
+ tar -C / -x${TAR_V}zf "$CONF_RESTORE"
+ exit $?
+fi
+
+type platform_check_image >/dev/null 2>/dev/null || {
+ echo "Firmware upgrade is not implemented for this platform."
+ exit 1
+}
+
+for check in $sysupgrade_image_check; do
+ ( eval "$check \"\$ARGV\"" ) || {
+ if [ $FORCE -eq 1 ]; then
+ echo "Image check '$check' failed but --force given - will update anyway!"
+ break
+ else
+ echo "Image check '$check' failed."
+ exit 1
+ fi
+ }
+done
+
+if [ -n "$CONF_IMAGE" ]; then
+ case "$(get_magic_word $CONF_IMAGE cat)" in
+ # .gz files
+ 1f8b) ;;
+ *)
+ echo "Invalid config file. Please use only .tar.gz files"
+ exit 1
+ ;;
+ esac
+ get_image "$CONF_IMAGE" "cat" > "$CONF_TAR"
+ export SAVE_CONFIG=1
+elif ask_bool $SAVE_CONFIG "Keep config files over reflash"; then
+ [ $TEST -eq 1 ] || do_save_conffiles
+ export SAVE_CONFIG=1
+else
+ export SAVE_CONFIG=0
+fi
+
+if [ $TEST -eq 1 ]; then
+ exit 0
+fi
+
+run_hooks "" $sysupgrade_pre_upgrade
+
+# Some platforms/devices may want different sysupgrade process, e.g. without
+# killing processes yet or calling ubus system upgrade method.
+# This is needed e.g. on NAND devices where we just want to trigger stage1 at
+# this point.
+if type 'platform_pre_upgrade' >/dev/null 2>/dev/null; then
+ platform_pre_upgrade "$ARGV"
+fi
+
+ubus call system upgrade
+touch /tmp/sysupgrade
+
+if [ ! -f /tmp/failsafe ] ; then
+ kill_remaining TERM
+ sleep 3
+ kill_remaining KILL
+fi
+
+if [ -n "$(rootfs_type)" ]; then
+ v "Switching to ramdisk..."
+ run_ramfs '. /lib/functions.sh; include /lib/upgrade; do_upgrade'
+else
+ do_upgrade
+fi