-#!/bin/sh
-
RAM_ROOT=/tmp/root
+export BACKUP_FILE=sysupgrade.tgz # file extracted by preinit
+
[ -x /usr/bin/ldd ] || ldd() { LD_TRACE_LOADED_OBJECTS=1 $*; }
-libs() { ldd $* 2>/dev/null | sed -r 's/(.* => )?(.*) .*/\2/'; }
+libs() { ldd $* 2>/dev/null | sed -E 's/(.* => )?(.*) .*/\2/'; }
install_file() { # <file> [ <file> ... ]
+ local target dest dir
for file in "$@"; do
+ if [ -L "$file" ]; then
+ target="$(readlink -f "$file")"
+ dest="$RAM_ROOT/$file"
+ [ ! -f "$dest" ] && {
+ dir="$(dirname "$dest")"
+ mkdir -p "$dir"
+ ln -s "$target" "$dest"
+ }
+ file="$target"
+ fi
dest="$RAM_ROOT/$file"
- [ -f $file -a ! -f $dest ] && {
- dir="$(dirname $dest)"
+ [ -f "$file" -a ! -f "$dest" ] && {
+ dir="$(dirname "$dest")"
mkdir -p "$dir"
- cp $file $dest
+ cp "$file" "$dest"
}
done
}
-install_bin() { # <file> [ <symlink> ... ]
+install_bin() {
+ local src files
src=$1
files=$1
[ -x "$src" ] && files="$src $(libs $src)"
install_file $files
- shift
- for link in "$@"; do {
- dest="$RAM_ROOT/$link"
- dir="$(dirname $dest)"
- mkdir -p "$dir"
- [ -f "$dest" ] || ln -s $src $dest
- }; 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 /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> [ <loop> ] ]
- local sig="${1:-TERM}"
- local loop="${2:-0}"
- local run=true
- local stat
-
- echo -n "Sending $sig to remaining processes ... "
-
- while $run; do
- run=false
- for stat in /proc/[0-9]*/stat; do
- [ -f "$stat" ] || continue
-
- local pid name state ppid rest
- read pid name state ppid rest < $stat
- name="${name#(}"; name="${name%)}"
-
- # Skip PID1, ourself and our children
- [ $pid -ne 1 -a $pid -ne $$ -a $ppid -ne $$ ] || continue
-
- local cmdline
- read cmdline < /proc/$pid/cmdline
-
- # Skip kernel threads
- [ -n "$cmdline" ] || continue
-
- echo -n "$name "
- kill -$sig $pid 2>/dev/null
-
- [ $loop -eq 1 ] && run=true
- done
- done
- echo ""
}
run_hooks() {
[ "$answer" -gt 0 ]
}
+_v() {
+ [ -n "$VERBOSE" ] && [ "$VERBOSE" -ge 1 ] && echo "$*" >&2
+}
+
v() {
- [ "$VERBOSE" -ge 1 ] && echo "$@"
+ _v "$(date) upgrade: $@"
+ logger -p info -t upgrade "$@"
}
json_string() {
get_image() { # <source> [ <command> ]
local from="$1"
- local cat="$2"
+ local cmd="$2"
- if [ -z "$cat" ]; then
+ if [ -z "$cmd" ]; then
local magic="$(dd if="$from" bs=2 count=1 2>/dev/null | hexdump -n 2 -e '1/1 "%02x"')"
case "$magic" in
- 1f8b) cat="zcat";;
- 425a) cat="bzcat";;
- *) cat="cat";;
+ 1f8b) cmd="busybox zcat";;
+ *) cmd="cat";;
esac
fi
- $cat "$from" 2>/dev/null
+ $cmd <"$from"
+}
+
+get_image_dd() {
+ local from="$1"; shift
+
+ (
+ exec 3>&2
+ ( exec 3>&2; get_image "$from" 2>&1 1>&3 | grep -v -F ' Broken pipe' ) 2>&1 1>&3 \
+ | ( exec 3>&2; dd "$@" 2>&1 1>&3 | grep -v -E ' records (in|out)') 2>&1 1>&3
+ exec 3>&-
+ )
}
get_magic_word() {
(get_image "$@" | 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
+get_magic_gpt() {
+ (get_image "$@" | dd bs=8 count=1 skip=64) 2>/dev/null
+}
- if read cmdline < /proc/cmdline; then
- case "$cmdline" in
- *block2mtd=*)
- disk="${cmdline##*block2mtd=}"
- disk="${disk%%,*}"
+get_magic_vfat() {
+ (get_image "$@" | dd bs=3 count=1 skip=18) 2>/dev/null
+}
+
+get_magic_fat32() {
+ (get_image "$@" | dd bs=1 count=5 skip=82) 2>/dev/null
+}
+
+identify_magic_long() {
+ local magic=$1
+ case "$magic" in
+ "55424923")
+ echo "ubi"
;;
- *root=*)
- disk="${cmdline##*root=}"
- disk="${disk%% *}"
+ "31181006")
+ echo "ubifs"
;;
- 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/${disk##*/}/uevent"
- break
- fi
- done
+ "68737173")
+ echo "squashfs"
;;
- /dev/*)
- uevent="/sys/class/block/${disk##*/}/uevent"
+ "d00dfeed")
+ echo "fit"
;;
- esac
+ "4349"*)
+ echo "combined"
+ ;;
+ "1f8b"*)
+ echo "gzip"
+ ;;
+ *)
+ echo "unknown $magic"
+ ;;
+ esac
+}
- if [ -e "$uevent" ]; then
- . "$uevent"
+part_magic_efi() {
+ local magic=$(get_magic_gpt "$@")
+ [ "$magic" = "EFI PART" ]
+}
- export BOOTDEV_MAJOR=$MAJOR
- export BOOTDEV_MINOR=$MINOR
- return 0
- fi
+part_magic_fat() {
+ local magic=$(get_magic_vfat "$@")
+ local magic_fat32=$(get_magic_fat32 "$@")
+ [ "$magic" = "FAT" ] || [ "$magic_fat32" = "FAT32" ]
+}
+
+export_bootdevice() {
+ local cmdline uuid blockdev uevent line class
+ local MAJOR MINOR DEVNAME DEVTYPE
+ local rootpart="$(cmdline_get_var root)"
+
+ case "$rootpart" 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]-[a-f0-9][a-f0-9])
+ uuid="${rootpart#PARTUUID=}"
+ uuid="${uuid%-[a-f0-9][a-f0-9]}"
+ for blockdev in $(find /dev -type b); do
+ set -- $(dd if=$blockdev 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/${blockdev##*/}/uevent"
+ break
+ fi
+ done
+ ;;
+ PARTUUID=????????-????-????-????-??????????0?/PARTNROFF=1 | \
+ PARTUUID=????????-????-????-????-??????????02)
+ uuid="${rootpart#PARTUUID=}"
+ uuid="${uuid%/PARTNROFF=1}"
+ uuid="${uuid%0?}00"
+ for disk in $(find /dev -type b); do
+ set -- $(dd if=$disk bs=1 skip=568 count=16 2>/dev/null | hexdump -v -e '8/1 "%02x "" "2/1 "%02x""-"6/1 "%02x"')
+ if [ "$4$3$2$1-$6$5-$8$7-$9" = "$uuid" ]; then
+ uevent="/sys/class/block/${disk##*/}/uevent"
+ break
+ fi
+ done
+ ;;
+ /dev/*)
+ uevent="/sys/class/block/${rootpart##*/}/../uevent"
+ ;;
+ 0x[a-f0-9][a-f0-9][a-f0-9] | 0x[a-f0-9][a-f0-9][a-f0-9][a-f0-9] | \
+ [a-f0-9][a-f0-9][a-f0-9] | [a-f0-9][a-f0-9][a-f0-9][a-f0-9])
+ rootpart=0x${rootpart#0x}
+ for class in /sys/class/block/*; do
+ while read line; do
+ export -n "$line"
+ done < "$class/uevent"
+ if [ $((rootpart/256)) = $MAJOR -a $((rootpart%256)) = $MINOR ]; then
+ uevent="$class/../uevent"
+ fi
+ done
+ ;;
+ esac
+
+ if [ -e "$uevent" ]; then
+ while read line; do
+ export -n "$line"
+ done < "$uevent"
+ export BOOTDEV_MAJOR=$MAJOR
+ export BOOTDEV_MINOR=$MINOR
+ return 0
fi
return 1
export_partdevice() {
local var="$1" offset="$2"
- local uevent MAJOR MINOR DEVNAME DEVTYPE
+ local uevent line MAJOR MINOR DEVNAME DEVTYPE
for uevent in /sys/class/block/*/uevent; do
- . "$uevent"
+ while read line; do
+ export -n "$line"
+ done < "$uevent"
if [ $BOOTDEV_MAJOR = $MAJOR -a $(($BOOTDEV_MINOR + $offset)) = $MINOR -a -b "/dev/$DEVNAME" ]; then
export "$var=$DEVNAME"
return 0
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 $filename..."
- local magic="$(hexdump -v -n 2 -s 0x1FE -e '1/2 "0x%04X"' "$disk")"
- if [ "$magic" != 0xAA55 ]; then
+ 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")
+ part_magic_efi "$disk" && {
+ #export_partdevice will fail when partition number is greater than 15, as
+ #the partition major device number is not equal to the disk major device number
+ for part in 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15; do
+ set -- $(hexdump -v -n 48 -s "$((0x380 + $part * 0x80))" -e '4/4 "%08x"" "4/4 "%08x"" "4/4 "0x%08X "' "$disk")
+
+ local type="$1"
+ local lba="$(( $(hex_le32_to_cpu $4) * 0x100000000 + $(hex_le32_to_cpu $3) ))"
+ local end="$(( $(hex_le32_to_cpu $6) * 0x100000000 + $(hex_le32_to_cpu $5) ))"
+ local num="$(( $end - $lba + 1 ))"
+
+ [ "$type" = "00000000000000000000000000000000" ] && continue
- local type="$(($1 % 256))"
- local lba="$(($2))"
- local num="$(($3))"
+ printf "%2d %5d %7d\n" $part $lba $num >> "/tmp/partmap.$filename"
+ done
+ } || {
+ for part in 1 2 3 4; do
+ set -- $(hexdump -v -n 12 -s "$((0x1B2 + $part * 16))" -e '3/4 "0x%08X "' "$disk")
- [ $type -gt 0 ] || continue
+ local type="$(( $(hex_le32_to_cpu $1) % 256))"
+ local lba="$(( $(hex_le32_to_cpu $2) ))"
+ local num="$(( $(hex_le32_to_cpu $3) ))"
- printf "%2d %5d %7d\n" $part $lba $num >> "/tmp/partmap.$filename"
- done
+ [ $type -gt 0 ] || continue
+
+ printf "%2d %5d %7d\n" $part $lba $num >> "/tmp/partmap.$filename"
+ done
+ }
fi
}
-jffs2_copy_config() {
- if grep rootfs_data /proc/mtd >/dev/null; then
- # squashfs+jffs2
- mtd -e rootfs_data jffs2write "$CONF_TAR" rootfs_data
- else
- # jffs2
- mtd jffs2write "$CONF_TAR" rootfs
- fi
+indicate_upgrade() {
+ . /etc/diag.sh
+ set_state upgrade
}
# Flash firmware to MTD partition
# $(2): (optional) pipe command to extract firmware, e.g. dd bs=n skip=m
default_do_upgrade() {
sync
- if [ "$SAVE_CONFIG" -eq 1 ]; then
- get_image "$1" "$2" | mtd $MTD_CONFIG_ARGS -j "$CONF_TAR" write - "${PART_NAME:-image}"
+ echo 3 > /proc/sys/vm/drop_caches
+ if [ -n "$UPGRADE_BACKUP" ]; then
+ get_image "$1" "$2" | mtd $MTD_ARGS $MTD_CONFIG_ARGS -j "$UPGRADE_BACKUP" write - "${PART_NAME:-image}"
else
- get_image "$1" "$2" | mtd write - "${PART_NAME:-image}"
+ get_image "$1" "$2" | mtd $MTD_ARGS write - "${PART_NAME:-image}"
fi
-}
-
-do_upgrade_stage2() {
- v "Performing system upgrade..."
- if [ -n "$do_upgrade" ]; then
- $do_upgrade "$IMAGE"
- elif type 'platform_do_upgrade' >/dev/null 2>/dev/null; then
- platform_do_upgrade "$IMAGE"
- else
- default_do_upgrade "$IMAGE"
- fi
-
- if [ "$SAVE_CONFIG" -eq 1 ] && type 'platform_copy_config' >/dev/null 2>/dev/null; then
- platform_copy_config
- fi
-
- v "Upgrade completed"
- sleep 1
-
- v "Rebooting system..."
- umount -a
- reboot -f
- sleep 5
- echo b 2>/dev/null >/proc/sysrq-trigger
+ [ $? -ne 0 ] && exit 1
}
projects / openwrt / openwrt.git / blobdiff