You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
257 lines
4.8 KiB
257 lines
4.8 KiB
#!/bin/sh
|
|
|
|
cmd="$1"
|
|
shift
|
|
|
|
if [ "$cmd" = "name" ]; then
|
|
echo "UBI"
|
|
return 0
|
|
fi
|
|
|
|
test -e /sys/class/ubi/version || return 0
|
|
read -r ubiver < /sys/class/ubi/version
|
|
[ "$ubiver" = "1" ] || return 1
|
|
test -e /sys/devices/virtual/ubi || return 0
|
|
|
|
ubidev=$(ls -1 /sys/devices/virtual/ubi | head -n 1)
|
|
|
|
read -r ebsize < "/sys/devices/virtual/ubi/${ubidev}/eraseblock_size"
|
|
|
|
freebytes() {
|
|
read -r availeb < "/sys/devices/virtual/ubi/${ubidev}/avail_eraseblocks"
|
|
echo $((availeb * ebsize))
|
|
}
|
|
|
|
totalbytes() {
|
|
read -r totaleb < "/sys/devices/virtual/ubi/${ubidev}/total_eraseblocks"
|
|
echo $((totaleb * ebsize))
|
|
}
|
|
|
|
getdev() {
|
|
local voldir volname
|
|
for voldir in "/sys/devices/virtual/ubi/${ubidev}/${ubidev}_"*; do
|
|
read -r volname < "${voldir}/name"
|
|
case "$volname" in
|
|
uvol-[rw][owpd]-$1)
|
|
basename "$voldir"
|
|
break
|
|
;;
|
|
*)
|
|
continue
|
|
;;
|
|
esac
|
|
done
|
|
}
|
|
|
|
vol_is_mode() {
|
|
local voldev="$1"
|
|
local volname
|
|
read -r volname < "/sys/devices/virtual/ubi/${ubidev}/${voldev}/name"
|
|
case "$volname" in
|
|
uvol-$2-*)
|
|
return 0
|
|
;;
|
|
esac
|
|
return 1
|
|
}
|
|
|
|
getstatus() {
|
|
local voldev
|
|
voldev="$(getdev "$@")"
|
|
[ "$voldev" ] || return 2
|
|
vol_is_mode "$voldev" wo && return 22
|
|
vol_is_mode "$voldev" wp && return 16
|
|
vol_is_mode "$voldev" wd && return 1
|
|
vol_is_mode "$voldev" ro && [ ! -e "/dev/ubiblock${voldev:3}" ] && return 1
|
|
return 0
|
|
}
|
|
|
|
getsize() {
|
|
local voldev
|
|
voldev="$(getdev "$@")"
|
|
[ "$voldev" ] || return 2
|
|
cat "/sys/devices/virtual/ubi/${ubidev}/${voldev}/data_bytes"
|
|
}
|
|
|
|
getuserdev() {
|
|
local voldev
|
|
voldev="$(getdev "$@")"
|
|
[ "$voldev" ] || return 2
|
|
if vol_is_mode "$voldev" ro ; then
|
|
echo "/dev/ubiblock${voldev:3}"
|
|
elif vol_is_mode "$voldev" rw ; then
|
|
echo "/dev/$voldev"
|
|
fi
|
|
}
|
|
|
|
mkubifs() {
|
|
local tmp_mp
|
|
tmp_mp="$(mktemp -d)"
|
|
mount -t ubifs "$1" "$tmp_mp"
|
|
umount "$tmp_mp"
|
|
rmdir "$tmp_mp"
|
|
}
|
|
|
|
createvol() {
|
|
local mode ret voldev
|
|
voldev=$(getdev "$@")
|
|
[ "$voldev" ] && return 17
|
|
case "$3" in
|
|
ro|wo)
|
|
mode=wo
|
|
;;
|
|
rw)
|
|
mode=wp
|
|
;;
|
|
*)
|
|
return 22
|
|
;;
|
|
esac
|
|
ubimkvol "/dev/$ubidev" -N "uvol-$mode-$1" -s "$2"
|
|
ret=$?
|
|
[ $ret -eq 0 ] || return $ret
|
|
voldev="$(getdev "$@")"
|
|
ubiupdatevol -t "/dev/$voldev"
|
|
[ "$mode" = "wp" ] || return 0
|
|
mkubifs "/dev/$voldev"
|
|
ubirename "/dev/$ubidev" "uvol-wp-$1" "uvol-wd-$1"
|
|
}
|
|
|
|
removevol() {
|
|
local voldev
|
|
voldev=$(getdev "$@")
|
|
[ "$voldev" ] || return 2
|
|
local volnum="${voldev#${ubidev}_}"
|
|
ubirmvol "/dev/$ubidev" -n "$volnum" || return $?
|
|
}
|
|
|
|
activatevol() {
|
|
local voldev
|
|
voldev="$(getdev "$@")"
|
|
[ "$voldev" ] || return 2
|
|
vol_is_mode "$voldev" rw && return 0
|
|
vol_is_mode "$voldev" ro && return 0
|
|
vol_is_mode "$voldev" wo && return 22
|
|
vol_is_mode "$voldev" wp && return 16
|
|
if vol_is_mode "$voldev" rd; then
|
|
ubirename "/dev/$ubidev" "uvol-rd-$1" "uvol-ro-$1"
|
|
ubiblock --create "/dev/$voldev"
|
|
return 0
|
|
elif vol_is_mode "$voldev" wd; then
|
|
ubirename "/dev/$ubidev" "uvol-wd-$1" "uvol-rw-$1"
|
|
return 0
|
|
fi
|
|
}
|
|
|
|
disactivatevol() {
|
|
local voldev
|
|
voldev="$(getdev "$@")"
|
|
[ "$voldev" ] || return 2
|
|
vol_is_mode "$voldev" rd && return 0
|
|
vol_is_mode "$voldev" wd && return 0
|
|
vol_is_mode "$voldev" wo && return 22
|
|
vol_is_mode "$voldev" wp && return 16
|
|
if vol_is_mode "$voldev" ro; then
|
|
[ -e "/dev/ubiblock${voldev:3}" ] || return 0
|
|
ubiblock --remove "/dev/$voldev" || return $?
|
|
ubirename "/dev/$ubidev" "uvol-ro-$1" "uvol-rd-$1" || return $?
|
|
return 0
|
|
elif vol_is_mode "$voldev" rw; then
|
|
ubirename "/dev/$ubidev" "uvol-rw-$1" "uvol-wd-$1" || return $?
|
|
return 0
|
|
fi
|
|
}
|
|
|
|
updatevol() {
|
|
local voldev
|
|
voldev="$(getdev "$@")"
|
|
[ "$voldev" ] || return 2
|
|
[ "$2" ] || return 22
|
|
vol_is_mode "$voldev" wo || return 22
|
|
ubiupdatevol -s "$2" "/dev/$voldev" -
|
|
ubirename "/dev/$ubidev" "uvol-wo-$1" "uvol-rd-$1"
|
|
}
|
|
|
|
listvols() {
|
|
local volname volmode volsize
|
|
for voldir in "/sys/devices/virtual/ubi/${ubidev}/${ubidev}_"*; do
|
|
read -r volname < "$voldir/name"
|
|
case "$volname" in
|
|
uvol-[rw][wod]*)
|
|
read -r volsize < "$voldir/data_bytes"
|
|
;;
|
|
*)
|
|
continue
|
|
;;
|
|
esac
|
|
volmode="${volname:5:2}"
|
|
volname="${volname:8}"
|
|
echo "$volname $volmode $volsize"
|
|
done
|
|
}
|
|
|
|
bootvols() {
|
|
local volname volmode volsize voldev fstype
|
|
for voldir in "/sys/devices/virtual/ubi/${ubidev}/${ubidev}_"*; do
|
|
read -r volname < "$voldir/name"
|
|
voldev="$(basename "$voldir")"
|
|
fstype=
|
|
case "$volname" in
|
|
uvol-ro-*)
|
|
voldev="/dev/ubiblock${voldev:3}"
|
|
ubiblock --create "/dev/$voldev"
|
|
;;
|
|
*)
|
|
continue
|
|
;;
|
|
esac
|
|
volmode="${volname:5:2}"
|
|
volname="${volname:8}"
|
|
done
|
|
}
|
|
|
|
case "$cmd" in
|
|
align)
|
|
echo "$ebsize"
|
|
;;
|
|
free)
|
|
freebytes
|
|
;;
|
|
total)
|
|
totalbytes
|
|
;;
|
|
boot)
|
|
bootvols
|
|
;;
|
|
list)
|
|
listvols "$@"
|
|
;;
|
|
create)
|
|
createvol "$@"
|
|
;;
|
|
remove)
|
|
removevol "$@"
|
|
;;
|
|
device)
|
|
getuserdev "$@"
|
|
;;
|
|
size)
|
|
getsize "$@"
|
|
;;
|
|
up)
|
|
activatevol "$@"
|
|
;;
|
|
down)
|
|
disactivatevol "$@"
|
|
;;
|
|
status)
|
|
getstatus "$@"
|
|
;;
|
|
write)
|
|
updatevol "$@"
|
|
;;
|
|
*)
|
|
echo "unknown command"
|
|
return 1
|
|
;;
|
|
esac
|