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# Functions for mounting and unmounting block devices
#
# Copyright (C) 2015 Patrick "P. J." McDermott
#
# This file is part of the ProteanOS Development Kit.
#
# The ProteanOS Development Kit is free software: you can redistribute
# it and/or modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# The ProteanOS Development Kit is distributed in the hope that it
# will be useful, but WITHOUT ANY WARRANTY; without even the implied
# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with the ProteanOS Development Kit. If not, see
# <http://www.gnu.org/licenses/>.
is_block()
{
local dev="${1}"
[ -b "${dev}" ]
return ${?}
}
check_block()
{
local dev="${1}"
if ! [ -b "${dev}" ]; then
error 2 "$(get_msg 'block_device_invalid')" "${dev}"
fi
}
block_mount()
{
local dev="${1}"
local dir=
if ! check_block "${dev}"; then
return 2
fi
rand
dir="$(get_vardata_dir 'mount')/block-$(printf '%010d' ${rand_x})"
if ! mkdir "${dir}"; then
error 2 "$(get_msg 'block_mkdir_fail')" "${dir}"
fi
if ! mount "${dev}" "${dir}"; then
rmdir "${dir}"
error 2 "$(get_msg 'block_mount_fail')" "${dev}"
fi
printf '%s' "${dir}"
return 0
}
block_umount()
{
local dir="${1}"
local i=
local timed_out=
i=0
timed_out=false
while ! umount "${dir}"; do
i=$(($i + 1))
if [ ${i} -eq 10 ]; then
timed_out=true
break
fi
sleep 1
done
if ${timed_out}; then
error 2 "$(get_msg 'block_umount_fail')" "${dir}"
fi
if ! rmdir "${dir}"; then
error 2 "$(get_msg 'block_rmdir_fail')" "${dir}"
fi
return 0
}
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