RAM_ROOT=/tmp/root
-ldd() { LD_TRACE_LOADED_OBJECTS=1 $*; }
-libs() { ldd $* | awk '{print $3}'; }
+[ -x /usr/bin/ldd ] || ldd() { LD_TRACE_LOADED_OBJECTS=1 $*; }
+libs() { ldd $* 2>/dev/null | sed -r 's/(.* => )?(.*) .*/\2/'; }
install_file() { # <file> [ <file> ... ]
for file in "$@"; do
}; done
}
-pivot() { # <new_root> <old_root>
- mount | grep "on $1 type" 2>&- 1>&- || mount -o bind $1 $1
- mkdir -p $1$2 $1/proc $1/dev $1/tmp $1/jffs && \
- mount -o move /proc $1/proc && \
+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 || {
- umount $1 $1
+ /bin/umount -l $1 $1
return 1
}
- mount -o move $2/dev /dev
- mount -o move $2/tmp /tmp
- mount -o move $2/jffs /jffs 2>&-
+
+ /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 /usr/bin/wget /sbin/reboot /bin/sync /bin/dd /bin/grep /bin/cp /bin/mv /bin/tar /usr/bin/md5sum "/usr/bin/[" /bin/vi /bin/ls /bin/cat
+ 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
+ install_bin ${file//:/ }
done
- install_file /etc/resolv.conf /etc/functions.sh /lib/upgrade/*.sh $RAMFS_COPY_DATA
+ install_file /etc/resolv.conf /lib/*.sh /lib/functions/*.sh /lib/upgrade/*.sh $RAMFS_COPY_DATA
- pivot $RAM_ROOT /mnt || {
+ [ -L "/lib64" ] && ln -s /lib $RAM_ROOT/lib64
+
+ supivot $RAM_ROOT /mnt || {
echo "Failed to switch over to ramfs. Please reboot."
exit 1
}
- mount -o remount,ro /mnt
- umount -l /mnt
+ /bin/mount -o remount,ro /mnt
+ /bin/umount -l /mnt
- grep /jffs /proc/mounts > /dev/null && {
- mount -o remount,ro /jffs
- umount -l /jffs
+ grep /overlay /proc/mounts > /dev/null && {
+ /bin/mount -o noatime,remount,ro /overlay
+ /bin/umount -l /overlay
}
# spawn a new shell from ramdisk to reduce the probability of cache issues
exec /bin/busybox ash -c "$*"
}
+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
}
rootfs_type() {
- mount | awk '($3 ~ /^\/$/) && ($5 !~ /rootfs/) { print $5 }'
+ /bin/mount | awk '($3 ~ /^\/$/) && ($5 !~ /rootfs/) { print $5 }'
}
-get_image() {
+get_image() { # <source> [ <command> ]
local from="$1"
+ local conc="$2"
+ local cmd
case "$from" in
- http://*|ftp://*) wget -O- -q "$from";;
- *) cat "$from"
+ 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"')"
+ case "$magic" in
+ 1f8b) conc="zcat";;
+ 425a) conc="bzcat";;
+ esac
+ fi
+
+ eval "$cmd \"$from\" 2>/dev/null ${conc:+| $conc}"
}
get_magic_word() {
- get_image "$1" | dd bs=2 count=1 2>/dev/null | hexdump -C | awk '$2 { print $2 $3 }'
+ (get_image "$@" | dd bs=2 count=1 | hexdump -v -n 2 -e '1/1 "%02x"') 2>/dev/null
}
-refresh_mtd_partitions() {
- mtd refresh rootfs
+get_magic_long() {
+ (get_image "$@" | dd bs=4 count=1 | hexdump -v -n 4 -e '1/1 "%02x"') 2>/dev/null
+}
+
+export_bootdevice() {
+ local cmdline uuid disk uevent
+ local MAJOR MINOR DEVNAME DEVTYPE
+
+ if read cmdline < /proc/cmdline; then
+ case "$cmdline" in
+ *block2mtd=*)
+ disk="${cmdline##*block2mtd=}"
+ disk="${disk%%,*}"
+ ;;
+ *root=*)
+ disk="${cmdline##*root=}"
+ disk="${disk%% *}"
+ ;;
+ esac
+
+ case "$disk" in
+ PARTUUID=[a-f0-9][a-f0-9][a-f0-9][a-f0-9][a-f0-9][a-f0-9][a-f0-9][a-f0-9]-02)
+ uuid="${disk#PARTUUID=}"
+ uuid="${uuid%-02}"
+ for disk in $(find /dev -type b); do
+ set -- $(dd if=$disk bs=1 skip=440 count=4 2>/dev/null | hexdump -v -e '4/1 "%02x "')
+ if [ "$4$3$2$1" = "$uuid" ]; then
+ uevent="/sys/class/block/${disk##*/}/uevent"
+ break
+ fi
+ done
+ ;;
+ /dev/*)
+ uevent="/sys/class/block/${disk##*/}/uevent"
+ ;;
+ esac
+
+ if [ -e "$uevent" ]; then
+ . "$uevent"
+
+ export BOOTDEV_MAJOR=$MAJOR
+ export BOOTDEV_MINOR=$MINOR
+ return 0
+ fi
+ fi
+
+ return 1
+}
+
+export_partdevice() {
+ local var="$1" offset="$2"
+ local uevent MAJOR MINOR DEVNAME DEVTYPE
+
+ for uevent in /sys/class/block/*/uevent; do
+ . "$uevent"
+ if [ $BOOTDEV_MAJOR = $MAJOR -a $(($BOOTDEV_MINOR + $offset)) = $MINOR -a -b "/dev/$DEVNAME" ]; then
+ export "$var=$DEVNAME"
+ return 0
+ fi
+ done
+
+ return 1
+}
+
+hex_le32_to_cpu() {
+ [ "$(echo 01 | hexdump -v -n 2 -e '/2 "%x"')" == "3031" ] && {
+ echo "${1:0:2}${1:8:2}${1:6:2}${1:4:2}${1:2:2}"
+ return
+ }
+ echo "$@"
+}
+
+get_partitions() { # <device> <filename>
+ local disk="$1"
+ local filename="$2"
+
+ if [ -b "$disk" -o -f "$disk" ]; then
+ v "Reading partition table from $filename..."
+
+ local magic=$(dd if="$disk" bs=2 count=1 skip=255 2>/dev/null)
+ if [ "$magic" != $'\x55\xAA' ]; then
+ v "Invalid partition table on $disk"
+ exit
+ fi
+
+ rm -f "/tmp/partmap.$filename"
+
+ local part
+ for part in 1 2 3 4; do
+ set -- $(hexdump -v -n 12 -s "$((0x1B2 + $part * 16))" -e '3/4 "0x%08X "' "$disk")
+
+ local type="$(( $(hex_le32_to_cpu $1) % 256))"
+ local lba="$(( $(hex_le32_to_cpu $2) ))"
+ local num="$(( $(hex_le32_to_cpu $3) ))"
+
+ [ $type -gt 0 ] || continue
+
+ printf "%2d %5d %7d\n" $part $lba $num >> "/tmp/partmap.$filename"
+ done
+ fi
}
jffs2_copy_config() {
fi
}
+# Flash firmware to MTD partition
+#
+# $(1): path to image
+# $(2): (optional) pipe command to extract firmware, e.g. dd bs=n skip=m
+default_do_upgrade() {
+ sync
+ if [ "$SAVE_CONFIG" -eq 1 ]; then
+ get_image "$1" "$2" | mtd $MTD_CONFIG_ARGS -j "$CONF_TAR" write - "${PART_NAME:-image}"
+ else
+ get_image "$1" "$2" | mtd write - "${PART_NAME:-image}"
+ fi
+}
+
do_upgrade() {
v "Performing system upgrade..."
- platform_do_upgrade "$ARGV"
-
- [ "$SAVE_CONFIG" -eq 1 ] && {
- v "Refreshing partitions"
- if type 'platform_refresh_partitions' >/dev/null 2>/dev/null; then
- platform_refresh_partitions
- else
- refresh_mtd_partitions
- fi
- if type 'platform_copy_config' >/dev/null 2>/dev/null; then
- platform_copy_config
- else
- jffs2_copy_config
- fi
+ if type 'platform_do_upgrade' >/dev/null 2>/dev/null; then
+ platform_do_upgrade "$ARGV"
+ else
+ default_do_upgrade "$ARGV"
+ fi
+
+ if [ "$SAVE_CONFIG" -eq 1 ] && type 'platform_copy_config' >/dev/null 2>/dev/null; then
+ platform_copy_config
+ fi
+
+ v "Upgrade completed"
+ [ -n "$DELAY" ] && sleep "$DELAY"
+ ask_bool 1 "Reboot" && {
+ v "Rebooting system..."
+ umount -a
+ reboot -f
+ sleep 5
+ echo b 2>/dev/null >/proc/sysrq-trigger
}
- ask_bool 1 "Reboot" && reboot
}