~mdw / distorted-keys / blame
| Commit | Line | Data |
|---|---|---|
| c47f2aba | 1 | #! /bin/sh |
| 599c8f75 | 2 | ### |
| c47f2aba | 3 | ### Recover a user key nub |
| 599c8f75 MW |
4 | ### |
| 5 | ### (c) 2011 Mark Wooding | |
| 6 | ### | |
| 7 | ||
| 8 | ###----- Licensing notice --------------------------------------------------- | |
| 9 | ### | |
| 10 | ### This file is part of the distorted.org.uk key management suite. | |
| 11 | ### | |
| 12 | ### distorted-keys is free software; you can redistribute it and/or modify | |
| 13 | ### it under the terms of the GNU General Public License as published by | |
| 14 | ### the Free Software Foundation; either version 2 of the License, or | |
| 15 | ### (at your option) any later version. | |
| 16 | ### | |
| 17 | ### distorted-keys is distributed in the hope that it will be useful, | |
| 18 | ### but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 19 | ### MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 20 | ### GNU General Public License for more details. | |
| 21 | ### | |
| 22 | ### You should have received a copy of the GNU General Public License | |
| 23 | ### along with distorted-keys; if not, write to the Free Software Foundation, | |
| 24 | ### Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
| 25 | ||
| 26 | set -e | |
| 27 | case "${KEYSLIB+t}" in t) ;; *) echo >&2 "$0: KEYSLIB unset"; exit 1 ;; esac | |
| 28 | . "$KEYSLIB"/keyfunc.sh | |
| 29 | ||
| 30 | defhelp <<HELP | |
| ae0eb898 | 31 | [-i INST] KEY RECOV |
| c47f2aba MW |
32 | Recover the named user KEY using a blob protected using the recovery key |
| 33 | RECOV; it is an error if RECOV is not currently revealed. | |
| 599c8f75 | 34 | HELP |
| 599c8f75 | 35 | |
| ae0eb898 MW |
36 | inst=current |
| 37 | while getopts "i:" opt; do | |
| 38 | case "$opt" in | |
| 39 | i) inst=$OPTARG ;; | |
| 40 | *) usage_err ;; | |
| 41 | esac | |
| 42 | done | |
| 43 | shift $(( $OPTIND - 1 )) | |
| c47f2aba MW |
44 | case $# in 2) ;; *) usage_err ;; esac |
| 45 | key=$1 recov=$2 | |
| 46 | parse_keylabel "$key" | |
| 47 | if [ ! -d $kdir ]; then echo >&2 "$quis: unknown key \`$key'"; exit 1; fi | |
| ae0eb898 | 48 | checkword "recovery instance" "$inst" |
| 599c8f75 | 49 | checkword "recovery key label" "$recov" |
| e9cf7079 MW |
50 | case $kowner in |
| 51 | $USERV_USER) ;; | |
| 52 | *) echo >&2 "$quis: you're not the owner of key \`$key'"; exit 1 ;; | |
| 53 | esac | |
| 599c8f75 | 54 | |
| c47f2aba MW |
55 | mktmp |
| 56 | nubid=$(cat $kdir/nubid) | |
| 57 | readmeta $kdir | |
| e9cf7079 | 58 | read_profile $kowner "$profile" |
| c47f2aba MW |
59 | if [ -f $knub ]; then |
| 60 | nubbin=$(nubid <$knub) | |
| 61 | case "$nubbin" in | |
| 62 | "$nubid") | |
| 63 | echo >&2 "$quis: key \`$key' doesn't need recovery" | |
| 64 | exit 1 | |
| 65 | ;; | |
| 66 | esac | |
| 67 | fi | |
| 68 | ||
| 69 | umask 077 | |
| ae0eb898 | 70 | recover $recov $inst $kowner/$klabel >$knub.new |
| c47f2aba MW |
71 | nubbin=$(nubid <$knub.new) |
| 72 | case "$nubbin" in | |
| 73 | "$nubid") ;; | |
| 74 | *) | |
| 75 | echo >&2 "$quis: recovery produced incorrect nub" | |
| 76 | exit 1 | |
| 77 | ;; | |
| 78 | esac | |
| 79 | mv $knub.new $knub | |
| 599c8f75 MW |
80 | |
| 81 | ###----- That's all, folks -------------------------------------------------- |