diff options
Diffstat (limited to 'package/base-files/files/sbin/sysupgrade')
| -rwxr-xr-x | package/base-files/files/sbin/sysupgrade | 187 |
1 files changed, 187 insertions, 0 deletions
diff --git a/package/base-files/files/sbin/sysupgrade b/package/base-files/files/sbin/sysupgrade new file mode 100755 index 000000000..802848ade --- /dev/null +++ b/package/base-files/files/sbin/sysupgrade @@ -0,0 +1,187 @@ +#!/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 |