diff options
| -rwxr-xr-x | package/base-files/files/etc/preinit | 1 | ||||
| -rwxr-xr-x | package/base-files/files/lib/functions.sh | 85 | ||||
| -rw-r--r-- | package/base-files/files/lib/functions/preinit.sh | 87 |
3 files changed, 88 insertions, 85 deletions
diff --git a/package/base-files/files/etc/preinit b/package/base-files/files/etc/preinit index 3fa0d62..a8662ea 100755 --- a/package/base-files/files/etc/preinit +++ b/package/base-files/files/etc/preinit @@ -24,6 +24,7 @@ pi_init_path="/bin:/sbin:/usr/bin:/usr/sbin" pi_init_cmd="/sbin/init" . /lib/functions.sh +. /lib/functions/preinit.sh boot_hook_init preinit_essential boot_hook_init preinit_main diff --git a/package/base-files/files/lib/functions.sh b/package/base-files/files/lib/functions.sh index da5d4a0..5e77657 100755 --- a/package/base-files/files/lib/functions.sh +++ b/package/base-files/files/lib/functions.sh @@ -446,89 +446,4 @@ user_exists() { grep -qs "^${1}:" ${IPKG_INSTROOT}/etc/passwd } - -boot_hook_splice_start() { - export -n PI_HOOK_SPLICE=1 -} - -boot_hook_splice_finish() { - local hook - for hook in $PI_STACK_LIST; do - local v; eval "v=\${${hook}_splice:+\$${hook}_splice }$hook" - export -n "${hook}=${v% }" - export -n "${hook}_splice=" - done - export -n PI_HOOK_SPLICE= -} - -boot_hook_init() { - local hook="${1}_hook" - export -n "PI_STACK_LIST=${PI_STACK_LIST:+$PI_STACK_LIST }$hook" - export -n "$hook=" -} - -boot_hook_add() { - local hook="${1}_hook${PI_HOOK_SPLICE:+_splice}" - local func="${2}" - - [ -n "$func" ] && { - local v; eval "v=\$$hook" - export -n "$hook=${v:+$v }$func" - } -} - -boot_hook_shift() { - local hook="${1}_hook" - local rvar="${2}" - - local v; eval "v=\$$hook" - [ -n "$v" ] && { - local first="${v%% *}" - - [ "$v" != "${v#* }" ] && \ - export -n "$hook=${v#* }" || \ - export -n "$hook=" - - export -n "$rvar=$first" - return 0 - } - - return 1 -} - -boot_run_hook() { - local hook="$1" - local func - - while boot_hook_shift "$hook" func; do - local ran; eval "ran=\$PI_RAN_$func" - [ -n "$ran" ] || { - export -n "PI_RAN_$func=1" - $func "$1" "$2" - } - done -} - -pivot() { # <new_root> <old_root> - /bin/mount -o noatime,move /proc $1/proc && \ - pivot_root $1 $1$2 && { - /bin/mount -o noatime,move $2/dev /dev - /bin/mount -o noatime,move $2/tmp /tmp - /bin/mount -o noatime,move $2/sys /sys 2>&- - /bin/mount -o noatime,move $2/overlay /overlay 2>&- - return 0 - } -} - -fopivot() { # <rw_root> <ro_root> <dupe?> - /bin/mount -o noatime,lowerdir=/,upperdir=$1 -t overlayfs "overlayfs:$1" /mnt - pivot /mnt $2 -} - -ramoverlay() { - mkdir -p /tmp/root - /bin/mount -t tmpfs -o noatime,mode=0755 root /tmp/root - fopivot /tmp/root /rom 1 -} - [ -z "$IPKG_INSTROOT" -a -f /lib/config/uci.sh ] && . /lib/config/uci.sh diff --git a/package/base-files/files/lib/functions/preinit.sh b/package/base-files/files/lib/functions/preinit.sh new file mode 100644 index 0000000..db1f298 --- /dev/null +++ b/package/base-files/files/lib/functions/preinit.sh @@ -0,0 +1,87 @@ +#!/bin/sh +# Copyright (C) 2006-2013 OpenWrt.org +# Copyright (C) 2010 Vertical Communications + +boot_hook_splice_start() { + export -n PI_HOOK_SPLICE=1 +} + +boot_hook_splice_finish() { + local hook + for hook in $PI_STACK_LIST; do + local v; eval "v=\${${hook}_splice:+\$${hook}_splice }$hook" + export -n "${hook}=${v% }" + export -n "${hook}_splice=" + done + export -n PI_HOOK_SPLICE= +} + +boot_hook_init() { + local hook="${1}_hook" + export -n "PI_STACK_LIST=${PI_STACK_LIST:+$PI_STACK_LIST }$hook" + export -n "$hook=" +} + +boot_hook_add() { + local hook="${1}_hook${PI_HOOK_SPLICE:+_splice}" + local func="${2}" + + [ -n "$func" ] && { + local v; eval "v=\$$hook" + export -n "$hook=${v:+$v }$func" + } +} + +boot_hook_shift() { + local hook="${1}_hook" + local rvar="${2}" + + local v; eval "v=\$$hook" + [ -n "$v" ] && { + local first="${v%% *}" + + [ "$v" != "${v#* }" ] && \ + export -n "$hook=${v#* }" || \ + export -n "$hook=" + + export -n "$rvar=$first" + return 0 + } + + return 1 +} + +boot_run_hook() { + local hook="$1" + local func + + while boot_hook_shift "$hook" func; do + local ran; eval "ran=\$PI_RAN_$func" + [ -n "$ran" ] || { + export -n "PI_RAN_$func=1" + $func "$1" "$2" + } + done +} + +pivot() { # <new_root> <old_root> + /bin/mount -o noatime,move /proc $1/proc && \ + pivot_root $1 $1$2 && { + /bin/mount -o noatime,move $2/dev /dev + /bin/mount -o noatime,move $2/tmp /tmp + /bin/mount -o noatime,move $2/sys /sys 2>&- + /bin/mount -o noatime,move $2/overlay /overlay 2>&- + return 0 + } +} + +fopivot() { # <rw_root> <ro_root> <dupe?> + /bin/mount -o noatime,lowerdir=/,upperdir=$1 -t overlayfs "overlayfs:$1" /mnt + pivot /mnt $2 +} + +ramoverlay() { + mkdir -p /tmp/root + /bin/mount -t tmpfs -o noatime,mode=0755 root /tmp/root + fopivot /tmp/root /rom 1 +} |