base-files: sysupgrade cleanup
[openwrt/openwrt.git] / package / base-files / files / lib / upgrade / common.sh
index e3519ca2cb496ff0835a9ef87da7faf217a07964..fc59bf2323498d332159b00eb7ab443bfe6b147e 100644 (file)
@@ -30,121 +30,6 @@ install_bin() { # <file> [ <symlink> ... ]
        }; done
 }
 
-supivot() { # <new_root> <old_root>
-       /bin/mount | grep "on $1 type" 2>&- 1>&- || /bin/mount -o bind $1 $1
-       mkdir -p $1$2 $1/proc $1/sys $1/dev $1/tmp $1/overlay && \
-       /bin/mount -o noatime,move /proc $1/proc && \
-       pivot_root $1 $1$2 || {
-               /bin/umount -l $1 $1
-               return 1
-       }
-
-       /bin/mount -o noatime,move $2/sys /sys
-       /bin/mount -o noatime,move $2/dev /dev
-       /bin/mount -o noatime,move $2/tmp /tmp
-       /bin/mount -o noatime,move $2/overlay /overlay 2>&-
-       return 0
-}
-
-run_ramfs() { # <command> [...]
-       install_bin /bin/busybox /bin/ash /bin/sh /bin/mount /bin/umount        \
-               /sbin/pivot_root /sbin/reboot /bin/sync /bin/dd /bin/grep       \
-               /bin/cp /bin/mv /bin/tar /usr/bin/md5sum "/usr/bin/[" /bin/dd   \
-               /bin/vi /bin/ls /bin/cat /usr/bin/awk /usr/bin/hexdump          \
-               /bin/sleep /bin/zcat /usr/bin/bzcat /usr/bin/printf /usr/bin/wc \
-               /bin/cut /usr/bin/printf /bin/sync /bin/mkdir /bin/rmdir        \
-               /bin/rm /usr/bin/basename /bin/kill /bin/chmod /usr/bin/find \
-               /bin/mknod
-
-       install_bin /bin/uclient-fetch /bin/wget
-       install_bin /sbin/mtd
-       install_bin /sbin/mount_root
-       install_bin /sbin/snapshot
-       install_bin /sbin/snapshot_tool
-       install_bin /usr/sbin/ubiupdatevol
-       install_bin /usr/sbin/ubiattach
-       install_bin /usr/sbin/ubiblock
-       install_bin /usr/sbin/ubiformat
-       install_bin /usr/sbin/ubidetach
-       install_bin /usr/sbin/ubirsvol
-       install_bin /usr/sbin/ubirmvol
-       install_bin /usr/sbin/ubimkvol
-       install_bin /usr/sbin/partx
-       install_bin /usr/sbin/losetup
-       install_bin /usr/sbin/mkfs.ext4
-       for file in $RAMFS_COPY_BIN; do
-               install_bin ${file//:/ }
-       done
-       install_file /etc/resolv.conf /lib/*.sh /lib/functions/*.sh /lib/upgrade/*.sh $RAMFS_COPY_DATA
-
-       [ -L "/lib64" ] && ln -s /lib $RAM_ROOT/lib64
-
-       supivot $RAM_ROOT /mnt || {
-               echo "Failed to switch over to ramfs. Please reboot."
-               exit 1
-       }
-
-       /bin/mount -o remount,ro /mnt
-       /bin/umount -l /mnt
-
-       grep /overlay /proc/mounts > /dev/null && {
-               /bin/mount -o noatime,remount,ro /overlay
-               /bin/umount -l /overlay
-       }
-
-       # spawn a new shell from ramdisk to reduce the probability of cache issues
-       exec /bin/busybox ash -c "$*"
-}
-
-kill_remaining() { # [ <signal> ]
-       local sig="${1:-TERM}"
-       echo -n "Sending $sig to remaining processes ... "
-
-       local my_pid=$$
-       local my_ppid=$(cut -d' ' -f4  /proc/$my_pid/stat)
-       local my_ppisupgraded=
-       grep -q upgraded /proc/$my_ppid/cmdline >/dev/null && {
-               local my_ppisupgraded=1
-       }
-       
-       local stat
-       for stat in /proc/[0-9]*/stat; do
-               [ -f "$stat" ] || continue
-
-               local pid name state ppid rest
-               read pid name state ppid rest < $stat
-               name="${name#(}"; name="${name%)}"
-
-               local cmdline
-               read cmdline < /proc/$pid/cmdline
-
-               # Skip kernel threads
-               [ -n "$cmdline" ] || continue
-
-               if [ $$ -eq 1 ] || [ $my_ppid -eq 1 ] && [ -n "$my_ppisupgraded" ]; then
-                       # Running as init process, kill everything except me
-                       if [ $pid -ne $$ ] && [ $pid -ne $my_ppid ]; then
-                               echo -n "$name "
-                               kill -$sig $pid 2>/dev/null
-                       fi
-               else 
-                       case "$name" in
-                               # Skip essential services
-                               *procd*|*ash*|*init*|*watchdog*|*ssh*|*dropbear*|*telnet*|*login*|*hostapd*|*wpa_supplicant*|*nas*|*relayd*) : ;;
-
-                               # Killable process
-                               *)
-                                       if [ $pid -ne $$ ] && [ $ppid -ne $$ ]; then
-                                               echo -n "$name "
-                                               kill -$sig $pid 2>/dev/null
-                                       fi
-                               ;;
-                       esac
-               fi
-       done
-       echo ""
-}
-
 run_hooks() {
        local arg="$1"; shift
        for func in "$@"; do
@@ -175,28 +60,31 @@ v() {
        [ "$VERBOSE" -ge 1 ] && echo "$@"
 }
 
+json_string() {
+       local v="$1"
+       v="${v//\\/\\\\}"
+       v="${v//\"/\\\"}"
+       echo "\"$v\""
+}
+
 rootfs_type() {
        /bin/mount | awk '($3 ~ /^\/$/) && ($5 !~ /rootfs/) { print $5 }'
 }
 
 get_image() { # <source> [ <command> ]
        local from="$1"
-       local conc="$2"
-       local cmd
-
-       case "$from" in
-               http://*|ftp://*) cmd="wget -O- -q";;
-               *) cmd="cat";;
-       esac
-       if [ -z "$conc" ]; then
-               local magic="$(eval $cmd \"$from\" 2>/dev/null | dd bs=2 count=1 2>/dev/null | hexdump -n 2 -e '1/1 "%02x"')"
+       local cat="$2"
+
+       if [ -z "$cat" ]; then
+               local magic="$(dd if="$from" bs=2 count=1 2>/dev/null | hexdump -n 2 -e '1/1 "%02x"')"
                case "$magic" in
-                       1f8b) conc="zcat";;
-                       425a) conc="bzcat";;
+                       1f8b) cat="zcat";;
+                       425a) cat="bzcat";;
+                       *) cat="cat";;
                esac
        fi
 
-       eval "$cmd \"$from\" 2>/dev/null ${conc:+| $conc}"
+       $cat "$from" 2>/dev/null
 }
 
 get_magic_word() {
@@ -320,12 +208,14 @@ default_do_upgrade() {
        fi
 }
 
-do_upgrade() {
+do_upgrade_stage2() {
        v "Performing system upgrade..."
-       if type 'platform_do_upgrade' >/dev/null 2>/dev/null; then
-               platform_do_upgrade "$ARGV"
+       if [ -n "$do_upgrade" ]; then
+               $do_upgrade "$IMAGE"
+       elif type 'platform_do_upgrade' >/dev/null 2>/dev/null; then
+               platform_do_upgrade "$IMAGE"
        else
-               default_do_upgrade "$ARGV"
+               default_do_upgrade "$IMAGE"
        fi
 
        if [ "$SAVE_CONFIG" -eq 1 ] && type 'platform_copy_config' >/dev/null 2>/dev/null; then
@@ -333,12 +223,11 @@ do_upgrade() {
        fi
 
        v "Upgrade completed"
-       [ -n "$DELAY" ] && sleep "$DELAY"
-       ask_bool 1 "Reboot" && {
-               v "Rebooting system..."
-               umount -a
-               reboot -f
-               sleep 5
-               echo b 2>/dev/null >/proc/sysrq-trigger
-       }
+       sleep 1
+
+       v "Rebooting system..."
+       umount -a
+       reboot -f
+       sleep 5
+       echo b 2>/dev/null >/proc/sysrq-trigger
 }