developer | 8262b0d | 2021-11-12 09:02:17 +0800 | [diff] [blame] | 1 | |
| 2 | # Keep these values be up-to-date with definition in libfstools/rootdisk.c of fstools package |
| 3 | ROOTDEV_OVERLAY_ALIGN=$((64*1024)) |
| 4 | F2FS_MINSIZE=$((100*1024*1024)) |
| 5 | |
| 6 | mtk_get_root() { |
| 7 | local rootfsdev |
| 8 | |
| 9 | if read cmdline < /proc/cmdline; then |
| 10 | case "$cmdline" in |
| 11 | *root=*) |
| 12 | rootfsdev="${cmdline##*root=}" |
| 13 | rootfsdev="${rootfsdev%% *}" |
| 14 | ;; |
| 15 | esac |
| 16 | |
| 17 | echo "${rootfsdev}" |
| 18 | fi |
| 19 | } |
| 20 | |
| 21 | mmc_upgrade_tar() { |
| 22 | local tar_file="$1" |
| 23 | local kernel_dev="$2" |
| 24 | local rootfs_dev="$3" |
| 25 | |
| 26 | local board_dir=$(tar tf ${tar_file} | grep -m 1 '^sysupgrade-.*/$') |
| 27 | board_dir=${board_dir%/} |
| 28 | |
| 29 | local kernel_length=$( (tar xf $tar_file ${board_dir}/kernel -O | wc -c) 2> /dev/null) |
| 30 | local rootfs_length=$( (tar xf $tar_file ${board_dir}/root -O | wc -c) 2> /dev/null) |
| 31 | |
| 32 | [ "${kernel_length}" != 0 ] && { |
| 33 | tar xf ${tar_file} ${board_dir}/kernel -O >${kernel_dev} |
| 34 | } |
| 35 | |
| 36 | [ "${rootfs_length}" != 0 ] && { |
| 37 | tar xf ${tar_file} ${board_dir}/root -O >${rootfs_dev} |
| 38 | } |
| 39 | |
| 40 | local rootfs_dev_size=$(blockdev --getsize64 ${rootfs_dev}) |
| 41 | [ $? -ne 0 ] && return 1 |
| 42 | |
| 43 | local rootfs_data_offset=$(((rootfs_length+ROOTDEV_OVERLAY_ALIGN-1)&~(ROOTDEV_OVERLAY_ALIGN-1))) |
| 44 | local rootfs_data_size=$((rootfs_dev_size-rootfs_data_offset)) |
| 45 | |
| 46 | local loopdev="$(losetup -f)" |
| 47 | losetup -o $rootfs_data_offset $loopdev $rootfs_dev || { |
| 48 | v "Failed to mount looped rootfs_data." |
| 49 | return 1 |
| 50 | } |
| 51 | |
| 52 | local fstype=ext4 |
| 53 | local mkfs_arg="-q -L rootfs_data" |
| 54 | [ "${rootfs_data_size}" -gt "${F2FS_MINSIZE}" ] && { |
| 55 | fstype=f2fs |
| 56 | mkfs_arg="-q -l rootfs_data" |
| 57 | } |
| 58 | |
| 59 | v "Format new rootfs_data at position ${rootfs_data_offset}." |
| 60 | mkfs.${fstype} ${mkfs_arg} ${loopdev} |
| 61 | [ $? -ne 0 ] && return 1 |
| 62 | |
| 63 | [ -n "$UPGRADE_BACKUP" ] && { |
| 64 | mkdir -p /tmp/new_root |
| 65 | mount -t ${fstype} ${loopdev} /tmp/new_root && { |
| 66 | v "Saving config to rootfs_data at position ${rootfs_data_offset}." |
| 67 | mv "$UPGRADE_BACKUP" "/tmp/new_root/$BACKUP_FILE" |
| 68 | umount /tmp/new_root |
| 69 | } |
| 70 | } |
| 71 | |
| 72 | # Cleanup |
| 73 | losetup -d ${loopdev} >/dev/null 2>&1 |
| 74 | sync |
| 75 | |
| 76 | return 0 |
| 77 | } |
| 78 | |
| 79 | mtk_mmc_do_upgrade() { |
| 80 | local tar_file="$1" |
| 81 | local board=$(board_name) |
| 82 | local kernel_dev= |
| 83 | local rootfs_dev= |
| 84 | local cmdline_root="$(mtk_get_root)" |
| 85 | |
| 86 | case "$cmdline_root" in |
| 87 | /dev/mmcblk*) |
| 88 | rootfs_dev=${cmdline_root} |
| 89 | ;; |
| 90 | PARTLABEL=* | PARTUUID=*) |
| 91 | rootfs_dev=$(blkid -t "${cmdline_root}" -o device) |
| 92 | [ -z "${rootfs_dev}" -o $? -ne 0 ] && return 1 |
| 93 | ;; |
| 94 | *) |
| 95 | return 1; |
| 96 | ;; |
| 97 | esac |
| 98 | |
| 99 | case "$board" in |
| 100 | *) |
| 101 | kernel_dev=$(blkid -t "PARTLABEL=kernel" -o device) |
| 102 | [ -z "${kernel_dev}" -o $? -ne 0 ] && return 1 |
| 103 | ;; |
| 104 | esac |
| 105 | |
| 106 | # keep sure its unbound |
| 107 | losetup --detach-all || { |
| 108 | v "Failed to detach all loop devices." |
| 109 | sleep 10 |
| 110 | reboot -f |
| 111 | } |
| 112 | |
| 113 | mmc_upgrade_tar "${tar_file}" "${kernel_dev}" "${rootfs_dev}" |
| 114 | |
| 115 | [ $? -ne 0 ] && { |
| 116 | v "Upgrade failed." |
| 117 | return 1 |
| 118 | } |
| 119 | |
| 120 | return 0 |
| 121 | } |