| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame] | 1 | # Copyright (C) 2006 OpenWrt.org |
| 2 | # Copyright (C) 2010 Vertical Communications |
| 3 | |
| 4 | missing_lines() { |
| 5 | local file1 file2 line |
| 6 | file1="$1" |
| 7 | file2="$2" |
| 8 | oIFS="$IFS" |
| 9 | IFS=":" |
| 10 | while read line; do |
| 11 | set -- $line |
| 12 | grep -q "^$1:" "$file2" || echo "$line" |
| 13 | done < "$file1" |
| 14 | IFS="$oIFS" |
| 15 | } |
| 16 | |
| 17 | # Rootfs mount options can be passed by declaring in the kernel |
| 18 | # cmdline as much options as needed prefixed with "rootfs_mount_options." |
| 19 | # |
| 20 | # Example: |
| 21 | # rootfs_mount_options.compress_algorithm=zstd rootfs_mount_options.noinline_data |
| 22 | # |
| 23 | compose_rootfs_mount_options() { |
| 24 | local mount_options |
| 25 | local cmdlinevar |
| 26 | |
| 27 | for cmdlinevar in $(cat /proc/cmdline); do |
| 28 | if [ "$cmdlinevar" != "${cmdlinevar#rootfs_mount_options\.}" ]; then |
| 29 | append mount_options "${cmdlinevar#rootfs_mount_options\.}" |
| 30 | fi |
| 31 | done |
| 32 | |
| 33 | echo $mount_options |
| 34 | } |
| 35 | |
| 36 | do_mount_root() { |
| 37 | #mount_root start "$(compose_rootfs_mount_options)" |
| 38 | boot_run_hook preinit_mount_root |
| 39 | [ -f /sysupgrade.tgz -o -f /tmp/sysupgrade.tar ] && { |
| 40 | echo "- config restore -" |
| 41 | cp /etc/passwd /etc/group /etc/shadow /tmp |
| 42 | cd / |
| 43 | [ -f /sysupgrade.tgz ] && tar xzf /sysupgrade.tgz |
| 44 | [ -f /tmp/sysupgrade.tar ] && tar xf /tmp/sysupgrade.tar |
| 45 | missing_lines /tmp/passwd /etc/passwd >> /etc/passwd |
| 46 | missing_lines /tmp/group /etc/group >> /etc/group |
| 47 | missing_lines /tmp/shadow /etc/shadow >> /etc/shadow |
| 48 | rm /tmp/passwd /tmp/group /tmp/shadow |
| 49 | # Prevent configuration corruption on a power loss |
| 50 | sync |
| 51 | } |
| 52 | } |
| 53 | |
| 54 | [ "$INITRAMFS" = "1" ] || boot_hook_add preinit_main do_mount_root |