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