Fresh pull from upstream

[librecmc/librecmc.git] / target / linux / x86 / base-files / lib / upgrade / platform.sh

diff --git a/target/linux/x86/base-files/lib/upgrade/platform.sh b/target/linux/x86/base-files/lib/upgrade/platform.sh
index c8bc3f7f608fc82ee3afc049b64af3a740fd2c37..8850917062618985126b5086dccfe11506ed1fbb 100644 (file)
--- a/target/linux/x86/base-files/lib/upgrade/platform.sh
+++ b/target/linux/x86/base-files/lib/upgrade/platform.sh
@@ -1,64 +1,3 @@
-platform_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
-}
-
-platform_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
-}
-
 platform_check_image() {
        [ "$#" -gt 1 ] && return 1
 
@@ -74,47 +13,17 @@ platform_check_image() {
 platform_copy_config() {
        local partdev
 
-       if platform_export_partdevice partdev 1; then
+       if export_partdevice partdev 1; then
                mount -t ext4 -o rw,noatime "/dev/$partdev" /mnt
                cp -af "$CONF_TAR" /mnt/
                umount /mnt
        fi
 }
 
-get_partitions() { # <device> <filename>
-       local disk="$1"
-       local filename="$2"
-
-       if [ -b "$disk" -o -f "$disk" ]; then
-               echo "Reading partition table from $filename..."
-
-               local magic="$(hexdump -v -n 2 -s 0x1FE -e '1/2 "0x%04X"' "$disk")"
-               if [ "$magic" != 0xAA55 ]; then
-                       echo "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="$(($1 % 256))"
-                       local lba="$(($2))"
-                       local num="$(($3))"
-
-                       [ $type -gt 0 ] || continue
-
-                       printf "%2d %5d %7d\n" $part $lba $num >> "/tmp/partmap.$filename"
-               done
-       fi
-}
-
 platform_do_upgrade() {
        local diskdev partdev ibs diff
 
-       if platform_export_bootdevice && platform_export_partdevice diskdev 0; then
+       if export_bootdevice && export_partdevice diskdev 0; then
                sync
                if [ "$SAVE_PARTITIONS" = "1" ]; then
                        get_partitions "/dev/$diskdev" bootdisk
@@ -143,7 +52,7 @@ platform_do_upgrade() {
 
                        #iterate over each partition from the image and write it to the boot disk
                        while read part start size; do
-                               if platform_export_partdevice partdev $part; then
+                               if export_partdevice partdev $part; then
                                        echo "Writing image to /dev/$partdev..."
                                        get_image "$@" | dd of="/dev/$partdev" ibs="$ibs" obs=1M skip="$start" count="$size" conv=fsync
                                else