1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
|
#!/usr/bin/env bash
# SPDX-License-Identifier: LGPL-2.1-or-later
set -eux
set -o pipefail
# TODO:
# - /proc/cmdline parsing
# - figure out token support (apart from TPM2, as that's covered by TEST-70-TPM2)
# - this might help https://www.qemu.org/docs/master/system/devices/ccid.html
# - expect + interactive auth?
# We set up an encrypted /var partition which should get mounted automatically
# on boot
mountpoint /var
systemctl --state=failed --no-legend --no-pager | tee /failed
if [[ -s /failed ]]; then
echo >&2 "Found units in failed state"
exit 1
fi
at_exit() {
set +e
mountpoint -q /proc/cmdline && umount /proc/cmdline
rm -f /etc/crypttab
[[ -e /tmp/crypttab.bak ]] && cp -fv /tmp/crypttab.bak /etc/crypttab
[[ -n "${STORE_LOOP:-}" ]] && losetup -d "$STORE_LOOP"
[[ -n "${WORKDIR:-}" ]] && rm -rf "$WORKDIR"
systemctl daemon-reload
}
trap at_exit EXIT
cryptsetup_start_and_check() {
local expect_fail=0
local ec volume unit
if [[ "${1:?}" == "-f" ]]; then
expect_fail=1
shift
fi
for volume in "$@"; do
unit="systemd-cryptsetup@$volume.service"
# The unit existence check should always pass
[[ "$(systemctl show -P LoadState "$unit")" == loaded ]]
systemctl list-unit-files "$unit"
systemctl start "$unit" && ec=0 || ec=$?
if [[ "$expect_fail" -ne 0 ]]; then
if [[ "$ec" -eq 0 ]]; then
echo >&2 "Unexpected pass when starting $unit"
return 1
fi
return 0
fi
if [[ "$ec" -ne 0 ]]; then
echo >&2 "Unexpected fail when starting $unit"
return 1
fi
systemctl status "$unit"
test -e "/dev/mapper/$volume"
systemctl stop "$unit"
test ! -e "/dev/mapper/$volume"
done
return 0
}
# Note: some stuff (especially TPM-related) is already tested by TEST-70-TPM2,
# so focus more on other areas instead
# Use a common workdir to make the cleanup easier
WORKDIR="$(mktemp -d)"
# Prepare a couple of LUKS2-encrypted disk images
#
# 1) Image with an empty password
IMAGE_EMPTY="$WORKDIR/empty.img)"
IMAGE_EMPTY_KEYFILE="$WORKDIR/empty.keyfile"
IMAGE_EMPTY_KEYFILE_ERASE="$WORKDIR/empty-erase.keyfile"
IMAGE_EMPTY_KEYFILE_ERASE_FAIL="$WORKDIR/empty-erase-fail.keyfile)"
truncate -s 32M "$IMAGE_EMPTY"
echo -n passphrase >"$IMAGE_EMPTY_KEYFILE"
chmod 0600 "$IMAGE_EMPTY_KEYFILE"
cryptsetup luksFormat --batch-mode \
--pbkdf pbkdf2 \
--pbkdf-force-iterations 1000 \
--use-urandom \
"$IMAGE_EMPTY" "$IMAGE_EMPTY_KEYFILE"
PASSWORD=passphrase NEWPASSWORD="" systemd-cryptenroll --password "$IMAGE_EMPTY"
# Duplicate the key file to test keyfile-erase as well
cp -v "$IMAGE_EMPTY_KEYFILE" "$IMAGE_EMPTY_KEYFILE_ERASE"
# The key should get erased even on a failed attempt, so test that too
cp -v "$IMAGE_EMPTY_KEYFILE" "$IMAGE_EMPTY_KEYFILE_ERASE_FAIL"
# 2) Image with a detached header and a key file offset + size
IMAGE_DETACHED="$WORKDIR/detached.img"
IMAGE_DETACHED_KEYFILE="$WORKDIR/detached.keyfile"
IMAGE_DETACHED_KEYFILE2="$WORKDIR/detached.keyfile2"
IMAGE_DETACHED_HEADER="$WORKDIR/detached.header"
truncate -s 32M "$IMAGE_DETACHED"
dd if=/dev/urandom of="$IMAGE_DETACHED_KEYFILE" count=64 bs=1
dd if=/dev/urandom of="$IMAGE_DETACHED_KEYFILE2" count=32 bs=1
chmod 0600 "$IMAGE_DETACHED_KEYFILE" "$IMAGE_DETACHED_KEYFILE2"
cryptsetup luksFormat --batch-mode \
--pbkdf pbkdf2 \
--pbkdf-force-iterations 1000 \
--use-urandom \
--header "$IMAGE_DETACHED_HEADER" \
--keyfile-offset 32 \
--keyfile-size 16 \
"$IMAGE_DETACHED" "$IMAGE_DETACHED_KEYFILE"
# Also, add a second key file to key slot 8
# Note: --key-slot= behaves as --new-key-slot= when used alone for backwards compatibility
cryptsetup luksAddKey --batch-mode \
--header "$IMAGE_DETACHED_HEADER" \
--key-file "$IMAGE_DETACHED_KEYFILE" \
--keyfile-offset 32 \
--keyfile-size 16 \
--key-slot 8 \
"$IMAGE_DETACHED" "$IMAGE_DETACHED_KEYFILE2"
# Prepare a couple of dummy devices we'll store a copy of the detached header
# and one of the keys on to test if systemd-cryptsetup correctly mounts them
# when necessary
STORE_IMAGE="$WORKDIR/store.img"
truncate -s 64M "$STORE_IMAGE"
STORE_LOOP="$(losetup --show --find --partscan "$STORE_IMAGE")"
sfdisk "$STORE_LOOP" <<EOF
label: gpt
type=0FC63DAF-8483-4772-8E79-3D69D8477DE4 name=header_store size=32M
type=0FC63DAF-8483-4772-8E79-3D69D8477DE4 name=keyfile_store
EOF
udevadm settle --timeout=30
mkdir -p /mnt
mkfs.ext4 -L header_store "/dev/disk/by-partlabel/header_store"
mount "/dev/disk/by-partlabel/header_store" /mnt
cp "$IMAGE_DETACHED_HEADER" /mnt/header
umount /mnt
mkfs.ext4 -L keyfile_store "/dev/disk/by-partlabel/keyfile_store"
mount "/dev/disk/by-partlabel/keyfile_store" /mnt
cp "$IMAGE_DETACHED_KEYFILE2" /mnt/keyfile
umount /mnt
udevadm settle --timeout=30
# Prepare our test crypttab
[[ -e /etc/crypttab ]] && cp -fv /etc/crypttab /tmp/crypttab.bak
cat >/etc/crypttab <<EOF
# headless should translate to headless=1
empty_key $IMAGE_EMPTY $IMAGE_EMPTY_KEYFILE headless,x-systemd.device-timeout=1m
empty_key_erase $IMAGE_EMPTY $IMAGE_EMPTY_KEYFILE_ERASE headless=1,keyfile-erase=1
empty_key_erase_fail $IMAGE_EMPTY $IMAGE_EMPTY_KEYFILE_ERASE_FAIL headless=1,keyfile-erase=1,keyfile-offset=4
# Empty passphrase without try-empty-password(=yes) shouldn't work
empty_fail0 $IMAGE_EMPTY - headless=1
empty_fail1 $IMAGE_EMPTY - headless=1,try-empty-password=0
empty0 $IMAGE_EMPTY - headless=1,try-empty-password
empty1 $IMAGE_EMPTY - headless=1,try-empty-password=1
# This one expects the key to be under /{etc,run}/cryptsetup-keys.d/empty_nokey.key
empty_nokey $IMAGE_EMPTY - headless=1
detached $IMAGE_DETACHED $IMAGE_DETACHED_KEYFILE headless=1,header=$IMAGE_DETACHED_HEADER,keyfile-offset=32,keyfile-size=16
detached_store0 $IMAGE_DETACHED $IMAGE_DETACHED_KEYFILE headless=1,header=/header:LABEL=header_store,keyfile-offset=32,keyfile-size=16
detached_store1 $IMAGE_DETACHED /keyfile:LABEL=keyfile_store headless=1,header=$IMAGE_DETACHED_HEADER
detached_store2 $IMAGE_DETACHED /keyfile:LABEL=keyfile_store headless=1,header=/header:LABEL=header_store
detached_fail0 $IMAGE_DETACHED $IMAGE_DETACHED_KEYFILE headless=1,header=$IMAGE_DETACHED_HEADER,keyfile-offset=32
detached_fail1 $IMAGE_DETACHED $IMAGE_DETACHED_KEYFILE headless=1,header=$IMAGE_DETACHED_HEADER
detached_fail2 $IMAGE_DETACHED $IMAGE_DETACHED_KEYFILE headless=1
detached_fail3 $IMAGE_DETACHED $IMAGE_DETACHED_KEYFILE headless=1,header=$IMAGE_DETACHED_HEADER,keyfile-offset=16,keyfile-size=16
detached_fail4 $IMAGE_DETACHED $IMAGE_DETACHED_KEYFILE headless=1,header=$IMAGE_DETACHED_HEADER,keyfile-offset=32,keyfile-size=8
detached_slot0 $IMAGE_DETACHED $IMAGE_DETACHED_KEYFILE2 headless=1,header=$IMAGE_DETACHED_HEADER
detached_slot1 $IMAGE_DETACHED $IMAGE_DETACHED_KEYFILE2 headless=1,header=$IMAGE_DETACHED_HEADER,key-slot=8
detached_slot_fail $IMAGE_DETACHED $IMAGE_DETACHED_KEYFILE2 headless=1,header=$IMAGE_DETACHED_HEADER,key-slot=0
EOF
# Temporarily drop luks.name=/luks.uuid= from the kernel command line, as it makes
# systemd-cryptsetup-generator ignore mounts from /etc/crypttab that are not also
# specified on the kernel command line
sed -r 's/luks.(name|uuid)=[^[:space:]+]//' /proc/cmdline >/tmp/cmdline.tmp
mount --bind /tmp/cmdline.tmp /proc/cmdline
# Run the systemd-cryptsetup-generator once explicitly, to collect coverage,
# as during daemon-reload we run generators in a sandbox
mkdir -p /tmp/systemd-cryptsetup-generator.out
/usr/lib/systemd/system-generators/systemd-cryptsetup-generator /tmp/systemd-cryptsetup-generator.out/
systemctl daemon-reload
systemctl list-unit-files "systemd-cryptsetup@*"
cryptsetup_start_and_check empty_key
test -e "$IMAGE_EMPTY_KEYFILE_ERASE"
cryptsetup_start_and_check empty_key_erase
test ! -e "$IMAGE_EMPTY_KEYFILE_ERASE"
test -e "$IMAGE_EMPTY_KEYFILE_ERASE_FAIL"
cryptsetup_start_and_check -f empty_key_erase_fail
test ! -e "$IMAGE_EMPTY_KEYFILE_ERASE_FAIL"
cryptsetup_start_and_check -f empty_fail{0..1}
cryptsetup_start_and_check empty{0..1}
# First, check if we correctly fail without any key
cryptsetup_start_and_check -f empty_nokey
# And now provide the key via /{etc,run}/cryptsetup-keys.d/
mkdir -p /run/cryptsetup-keys.d
cp "$IMAGE_EMPTY_KEYFILE" /run/cryptsetup-keys.d/empty_nokey.key
cryptsetup_start_and_check empty_nokey
cryptsetup_start_and_check detached
cryptsetup_start_and_check detached_store{0..2}
cryptsetup_start_and_check -f detached_fail{0..4}
cryptsetup_start_and_check detached_slot{0..1}
cryptsetup_start_and_check -f detached_slot_fail
echo OK >/testok
|
