3 # Copyright (c) 2007-2012 Zmanda Inc. All Rights Reserved.
5 # This program is free software; you can redistribute it and/or
6 # modify it under the terms of the GNU General Public License
7 # as published by the Free Software Foundation; either version 2
8 # of the License, or (at your option) any later version.
10 # This program is distributed in the hope that it will be useful, but
11 # WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
12 # or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
15 # You should have received a copy of the GNU General Public License along
16 # with this program; if not, write to the Free Software Foundation, Inc.,
17 # 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 # Contact information: Zmanda Inc, 465 S. Mathilda Ave., Suite 300
20 # Sunnyvale, CA 94086, USA, or: http://www.zmanda.com
24 exec_prefix="@exec_prefix@"
26 amlibexecdir="@amlibexecdir@"
27 . "${amlibexecdir}/amanda-sh-lib.sh"
29 # add sbin and ucb dirs
30 PATH="$PATH:/usr/sbin:/sbin:/usr/ucb"
33 # wrapper script to use aespipe
34 # based on bz2aespipe distributed by aespipe from
35 # http://loop-aes.sourceforge.net/
37 # 10 bytes: constant string 'bz2aespipe'
38 # 10 bytes: itercountk digits
39 # 1 byte: '0' = AES128, '1' = AES192, '2' = AES256
40 # 1 byte: '0' = SHA256, '1' = SHA384, '2' = SHA512, '3' = RMD160
41 # 24 bytes: random seed string
42 # remaining bytes are aespipe encrypted
44 # These definitions are only used when encrypting.
45 # Decryption will autodetect these definitions from archive.
50 AMANDA_HOME=~@CLIENT_LOGIN@
51 GPGKEY="$AMANDA_HOME/.gnupg/am_key.gpg"
54 if test x$1 = x-d ; then
56 n=`/bin/dd bs=10 count=1 2> /dev/null | tr -d -c 0-9a-zA-Z`
57 if test x${n} != xbz2aespipe ; then
58 echo "bz2aespipe: wrong magic - aborted" >/dev/tty
61 itercountk=`/bin/dd bs=10 count=1 2> /dev/null | tr -d -c 0-9`
62 if test x${itercountk} = x ; then itercountk=0; fi
63 n=`/bin/dd bs=1 count=1 2> /dev/null | tr -d -c 0-9`
65 if test x${n} = x1 ; then encryption=AES192; fi
66 if test x${n} = x2 ; then encryption=AES256; fi
67 n=`/bin/dd bs=1 count=1 2> /dev/null | tr -d -c 0-9`
69 if test x${n} = x1 ; then hashfunc=SHA384; fi
70 if test x${n} = x2 ; then hashfunc=SHA512; fi
71 if test x${n} = x3 ; then hashfunc=RMD160; fi
72 seedstr=`/bin/dd bs=24 count=1 2> /dev/null | tr -d -c 0-9a-zA-Z+/`
73 aespipe -K ${GPGKEY} -p ${FDNUMBER} -e ${encryption} -H ${hashfunc} \
74 -S ${seedstr} -C ${itercountk} -d
78 echo ${ITERCOUNTK} | awk '{printf "%10u", $1;}'
79 n=`echo ${ENCRYPTION} | tr -d -c 0-9`
81 if test x${n} = x192 ; then aesstr=1; fi
82 if test x${n} = x256 ; then aesstr=2; fi
83 n=`echo ${HASHFUNC} | tr -d -c 0-9`
85 if test x${n} = x384 ; then hashstr=1; fi
86 if test x${n} = x512 ; then hashstr=2; fi
87 if test x${n} = x160 ; then hashstr=3; fi
88 seedstr=`head -c 18 /dev/urandom | uuencode -m - | head -n 2 | tail -n 1`
89 echo -n ${aesstr}${hashstr}${seedstr}
90 aespipe -K ${GPGKEY} -p ${FDNUMBER} -e ${ENCRYPTION} -H ${HASHFUNC} \
91 -S ${seedstr} -C ${ITERCOUNTK} -w ${WAITSECONDS}