package/base-files/files/sbin/sysupgrade

   1 #!/bin/sh
   2 . /etc/functions.sh
   3
   4 # initialize defaults
   5 RAMFS_COPY_BIN=""       # extra programs for temporary ramfs root
   6 RAMFS_COPY_DATA=""      # extra data files
   7 export INTERACTIVE=0
   8 export VERBOSE=1
   9 export SAVE_CONFIG=1
  10 export DELAY=
  11 export CONF_IMAGE=
  12 export GZIPED=
  13 # parse options
  14 while [ -n "$1" ]; do
  15         case "$1" in
  16                 -i) export INTERACTIVE=1;;
  17                 -d) export DELAY="$2"; shift;;
  18                 -v) export VERBOSE="$(($VERBOSE + 1))";;
  19                 -q) export VERBOSE="$(($VERBOSE - 1))";;
  20                 -n) export SAVE_CONFIG=0;;
  21                 -f) export CONF_IMAGE="$2"; shift;;
  22                 -g) export GZIPED=1;;
  23                 -*)
  24                         echo "Invalid option: $1"
  25                         exit 1
  26                 ;;
  27                 *) break;;
  28         esac
  29         shift;
  30 done
  31
  32 export CONFFILES=/tmp/sysupgrade.conffiles
  33 export CONF_TAR=/tmp/sysupgrade.tgz
  34
  35 export ARGV="$*"
  36 export ARGC="$#"
  37
  38 [ -z "$ARGV" ] && {
  39         cat <<EOF
  40 Usage: $0 [options] <image file or URL>
  41
  42 Options:
  43         -d <delay>   add a delay before rebooting
  44         -f <config>  restore configuration from .tar.gz (file or url)
  45         -g           gziped image
  46         -i           interactive mode
  47         -n           do not save configuration over reflash
  48         -q           less verbose
  49         -v           more verbose
  50
  51 EOF
  52         exit 1
  53 }
  54
  55 add_uci_conffiles() {
  56         local file="$1"
  57         find /etc/config /etc/passwd /etc/group /etc/dropbear /etc/firewall.user > "$file"
  58         return 0
  59 }
  60
  61 # hooks
  62 sysupgrade_image_check="platform_check_image"
  63 sysupgrade_init_conffiles="add_uci_conffiles"
  64
  65 include /lib/upgrade
  66
  67 do_save_conffiles() {
  68         [ -z "$(rootfs_type)" ] && {
  69                 echo "Cannot save config while running from ramdisk."
  70                 ask_bool 0 "Abort" && exit
  71                 return 0
  72         }
  73         run_hooks "$CONFFILES" $sysupgrade_init_conffiles
  74         ask_bool 0 "Edit config file list" && vi "$CONFFILES"
  75
  76         v "Saving config files..."
  77         [ "$VERBOSE" -gt 1 ] && TAR_V="v" || TAR_V=""
  78         tar c${TAR_V}zf "$CONF_TAR" -T "$CONFFILES" 2>/dev/null
  79 }
  80
  81 type platform_check_image >/dev/null 2>/dev/null || {
  82         echo "Firmware upgrade is not implemented for this platform."
  83         exit 1
  84 }
  85
  86 for check in $sysupgrade_image_check; do
  87         ( eval "$check \"\$ARGV\"" ) || {
  88                 echo "Image check '$check' failed."
  89                 exit 1
  90         }
  91 done
  92
  93 if [ -n "$CONF_IMAGE" ]; then
  94         case "$(get_magic_word "$CONF_IMAGE")" in
  95                 # .gz files
  96                 1f8b) ;;
  97                 *)
  98                         echo "Invalid config file. Please use only .tar.gz files"
  99                         exit 1
 100                 ;;
 101         esac
 102         get_image "$CONF_IMAGE" > "$CONF_TAR"
 103         export SAVE_CONFIG=1
 104 elif ask_bool $SAVE_CONFIG "Keep config files over reflash"; then
 105         do_save_conffiles
 106         export SAVE_CONFIG=1
 107 else
 108         export SAVE_CONFIG=0
 109 fi
 110 run_hooks "" $sysupgrade_pre_upgrade
 111
 112 v "Switching to ramdisk..."
 113 run_ramfs '. /etc/functions.sh; include /lib/upgrade; do_upgrade'