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Member "cryptsetup-2.4.3/tests/loopaes-test" (13 Jan 2022, 4314 Bytes) of package /linux/misc/cryptsetup-2.4.3.tar.xz:
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1 #!/bin/bash
2
3 [ -z "$CRYPTSETUP_PATH" ] && CRYPTSETUP_PATH=".."
4 CRYPTSETUP=$CRYPTSETUP_PATH/cryptsetup
5
6 # try to validate using loop-AES losetup/kernel if available
7 LOSETUP_AES=/losetup-aes.old
8
9 LOOP_DD_PARAM="bs=1k count=10000"
10 DEV_NAME=dummy
11 IMG=loopaes.img
12 KEYv1=key_v1
13 KEYv2=key_v2
14 KEYv3=key_v3
15 LOOPDEV=$(losetup -f 2>/dev/null)
16
17 function dmremove() { # device
18 udevadm settle >/dev/null 2>&1
19 dmsetup remove --retry $1 >/dev/null 2>&1
20 }
21
22 function remove_mapping()
23 {
24 [ -b /dev/mapper/$DEV_NAME2 ] && dmremove $DEV_NAME2
25 [ -b /dev/mapper/$DEV_NAME ] && dmremove $DEV_NAME
26 losetup -d $LOOPDEV >/dev/null 2>&1
27 rm -f $IMG $KEYv1 $KEYv2 $KEYv3 >/dev/null 2>&1
28 }
29
30 function fail()
31 {
32 echo "FAILED backtrace:"
33 while caller $frame; do ((frame++)); done
34 remove_mapping
35 exit 2
36 }
37
38 function skip()
39 {
40 [ -n "$1" ] && echo "$1"
41 exit 77
42 }
43
44 function prepare()
45 {
46 remove_mapping
47 dd if=/dev/zero of=$IMG $LOOP_DD_PARAM >/dev/null 2>&1
48 sync
49 losetup $LOOPDEV $IMG
50
51 # Prepare raw key: v1 - one key, v2 - 64 keys, v3 - 64 + one IV
52 if [ ! -e $KEYv3 ]; then
53 head -c 3705 /dev/urandom | uuencode -m - | head -n 66 | tail -n 65 >$KEYv3
54 head -n 1 $KEYv3 > $KEYv1
55 head -n 64 $KEYv3 > $KEYv2
56 fi
57 [ -n "$1" ] && echo -n "$1 "
58 }
59
60 function check_exists()
61 {
62 [ -b /dev/mapper/$DEV_NAME ] || fail
63 }
64
65 function get_offset_params() # $offset
66 {
67 offset=$1
68 if [ "${offset:0:1}" = "@" ] ; then
69 echo "-o $((${offset:1} / 512)) -p 0"
70 else
71 echo "-o $((offset / 512))"
72 fi
73 }
74
75 function get_expsum() # $offset
76 {
77 case $1 in
78 0)
79 echo "31e00e0e4c233c89051cd748122fde2c98db0121ca09ba93a3820817ea037bc5"
80 ;;
81 @8192 | 8192)
82 echo "bfd94392d1dd8f5d477251d21b3c736e177a4945cd4937847fc7bace82996aed"
83 ;;
84 @8388608 | 8388608)
85 echo "33838fe36928a929bd7971bed7e82bd426c88193fcd692c2e6f1b9c9bfecd4d6"
86 ;;
87 *) fail
88 ;;
89 esac
90 }
91
92 function check_sum() # $key $keysize $offset [stdin|keyfile]
93 {
94 $CRYPTSETUP close $DEV_NAME || fail
95
96 EXPSUM=$(get_expsum $3)
97 if [ "$4" == "stdin" ] ; then
98 cat $1 | $CRYPTSETUP loopaesOpen $LOOPDEV $DEV_NAME -s $2 --key-file - $(get_offset_params $3) >/dev/null 2>&1
99 else
100 $CRYPTSETUP loopaesOpen $LOOPDEV $DEV_NAME -s $2 --key-file $1 $(get_offset_params $3) >/dev/null 2>&1
101 fi
102 ret=$?
103 VSUM=$(sha256sum /dev/mapper/$DEV_NAME | cut -d' ' -f 1)
104 if [ $ret -eq 0 -a "$VSUM" = "$EXPSUM" ] ; then
105 echo -n "[$4:OK]"
106 else
107 echo "[$4:FAIL]"
108 [ "$VSUM" != "$EXPSUM" ] && echo " Expecting $EXPSUM got $VSUM."
109 fail
110 fi
111 }
112
113 function check_sum_losetup() # $key $alg
114 {
115 [ ! -x $LOSETUP_AES ] && echo && return
116
117 echo -n " Verification using loop-AES: "
118
119 losetup -d $LOOPDEV >/dev/null 2>&1
120 cat $1 | $LOSETUP_AES -p 0 -e $2 -o $3 $LOOPDEV $IMG
121 ret=$?
122 VSUM=$(sha256sum $LOOPDEV | cut -d' ' -f 1)
123 if [ $ret -eq 0 -a "$VSUM" = "$EXPSUM" ] ; then
124 echo "[OK]"
125 else
126 echo "[FAIL]"
127 [ "$VSUM" != "$EXPSUM" ] && echo " Expecting $EXPSUM got $VSUM (loop-AES)."
128 fail
129 fi
130 losetup -d $LOOPDEV >/dev/null 2>&1
131 }
132
133 function check_version()
134 {
135 VER_STR=$(dmsetup version | grep Driver)
136 VER_MIN=$(echo $VER_STR | cut -f 2 -d.)
137 VER_PATCH=$(echo $VER_STR | cut -f 3 -d.)
138
139 test $VER_MIN -lt 19 && return 1
140 test $VER_MIN -eq 19 -a $VER_PATCH -ge 6 && return 1 # RHEL
141 return 0
142 }
143
144 [ $(id -u) != 0 ] && skip "WARNING: You must be root to run this test, test skipped."
145 [ -z "$LOOPDEV" ] && skip "Cannot find free loop device, test skipped."
146 which uuencode >/dev/null 2>&1 || skip "WARNING: test require uuencode binary, test skipped."
147 check_version || skip "Probably old kernel, test skipped."
148
149 # loop-AES tests
150 KEY_SIZES="128 256"
151 KEY_FILES="$KEYv1 $KEYv2 $KEYv3"
152 DEV_OFFSET="0 8192 @8192 8388608 @8388608"
153
154 for key_size in $KEY_SIZES ; do
155 for key in $KEY_FILES ; do
156 for offset in $DEV_OFFSET ; do
157 prepare "Open loop-AES $key / AES-$key_size / offset $offset"
158 $CRYPTSETUP loopaesOpen $LOOPDEV $DEV_NAME \
159 -s $key_size --key-file $key $(get_offset_params $offset) \
160 2>/dev/null
161 [ $? -ne 0 ] && echo "[SKIPPED]" && continue
162 check_exists
163 # Fill device with zeroes and reopen it
164 dd if=/dev/zero of=/dev/mapper/$DEV_NAME $LOOP_DD_PARAM >/dev/null 2>&1
165 check_sum $key $key_size $offset keyfile
166 check_sum $key $key_size $offset stdin
167 $CRYPTSETUP loopaesClose $DEV_NAME || fail
168 check_sum_losetup $key AES$key_size $offset
169 done
170 done
171 done
172
173 remove_mapping
174 exit 0