60 lines
1.9 KiB
Plaintext
60 lines
1.9 KiB
Plaintext
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#!/bin/bash
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#
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# Decrypt ~/.enc and run any hooks
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#
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# Copyright (C) 2013 Mike Gerwitz
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# Prompts to decrypt the encrypted directory after first running a premount
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# script. Should the script succeed, mounting proceeds, after which a
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# postmount script is run. In the event that the latter fails, the mount
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# point will remain mounted, so any abort operations must occur in premount.
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##
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avail="$HOME/.enc/.available"
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premount="$HOME/.enc/.premount"
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postmount="$HOME/.enc/.postmount"
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# enc-setup creates .available within the encrypted directory; if it's
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# available, then ~/.enc-data is already mounted
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[ -e "$avail" ] && exit
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# execute pre-mount script to allow system-specific preparation (note that
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# this premount script exists within the mount point, meaning it'll be
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# hidden as soon as the mount succeeds)
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[ -x "$premount" ] && {
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"$premount" || {
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err=$?
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echo "fatal: $premount failed!" >&2
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exit $err
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}
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}
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# mount the directory understanding that ~/.enc is very likely non-empty (to
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# provide ``secured'' defaults
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encfs ~/.enc-data ~/.enc -ononempty \
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&& {
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[ ! -x "$postmount" ] || "$postmount" || {
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err=$?
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echo "warning: mounted, but $postmount failed!"
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exit $err
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}
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} \
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err=$?
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echo "fatal: mount failed"
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exit $err
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}
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