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|
#!/bin/sh
. /lib/functions.sh
# initialize defaults
RAMFS_COPY_BIN="" # extra programs for temporary ramfs root
RAMFS_COPY_DATA="" # extra data files
export INTERACTIVE=0
export VERBOSE=1
export SAVE_CONFIG=1
export SAVE_OVERLAY=0
export DELAY=
export CONF_IMAGE=
export CONF_BACKUP=
export CONF_RESTORE=
export HELP=0
export FORCE=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"; shift;;
-r|--restore-backup) export CONF_RESTORE="$2"; shift;;
-f) export CONF_IMAGE="$2"; shift;;
-F|--force) export FORCE=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 "$CONF_BACKUP" -o $HELP -gt 0 ] && {
cat <<EOF
Usage: $0 [options] <image file or URL>
Options:
-d <delay> add a delay before rebooting
-f <config> restore configuration from .tar.gz (file or url)
-i interactive mode
-c attempt to preserve all changed files in /etc/
-b / --create-backup <file>
create .tar.gz of files specified in sysupgrade.conf
then exit. Does not flash an image. If file is '-',
i.e. stdout, verbosity is set to 0 (i.e. quiet).
-r / --restore-backup <file>
restore a .tar.gz created with sysupgrade -b
then exit. Does not flash an image. If file is '-',
the archive is read from stdin.
-n do not save configuration over reflash
-F / --force
Flash image even if image checks fail, this is dangerous!
-q less verbose
-v more verbose
-h / --help display this help
EOF
exit 1
}
[ -n "$ARGV" -a -n "$CONF_BACKUP" ] && {
cat <<-EOF
-b/--create-backup does not perform a firmware upgrade. Do not
specify both -b and a firmware image.
EOF
exit 1
}
# prevent messages from clobbering the tarball when using stdout
[ "$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 2>/dev/null;
opkg list-changed-conffiles ) | sort -u > "$file"
return 0
}
add_overlayfiles() {
local file="$1"
find /overlay/etc/ -type f | sed \
-e 's,^/overlay/,/,' \
-e '\,/META_[a-zA-Z0-9]*$,d' \
-e '\,/functions.sh$,d' \
-e '\,/[^/]*-opkg$,d' \
> "$file"
return 0
}
# hooks
sysupgrade_image_check="platform_check_image"
[ $SAVE_OVERLAY = 0 -o ! -d /overlay/etc ] && \
sysupgrade_init_conffiles="add_uci_conffiles" || \
sysupgrade_init_conffiles="add_overlayfiles"
include /lib/upgrade
do_save_conffiles() {
local conf_tar="${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
}
if [ -n "$CONF_BACKUP" ]; then
do_save_conffiles "$CONF_BACKUP"
exit $?
fi
if [ -f "$CONF_RESTORE" ] || [ "$CONF_RESTORE" = "-" ]; then
[ "$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
do_save_conffiles
export SAVE_CONFIG=1
else
export SAVE_CONFIG=0
fi
run_hooks "" $sysupgrade_pre_upgrade
kill_remaining TERM
sleep 3
kill_remaining KILL
if [ -n "$(rootfs_type)" ]; then
v "Switching to ramdisk..."
run_ramfs '. /lib/functions.sh; include /lib/upgrade; do_upgrade'
else
do_upgrade
fi
|
