mirror of
https://github.com/systemd/systemd.git
synced 2024-11-01 00:51:24 +03:00
c9d1c37c93
If the packages are built without libssl simply skip the signature checks. Oct 06 21:21:32 H systemd[1]: systemd 249.1249.gcc4df1f787.0 running in system mode (+PAM +AUDIT +SELINUX +APPARMOR +IMA +SMACK +SECCOMP +GCRYPT +GNUTLS -OPENSSL ... Oct 06 21:22:21 H systemd[459]: Activation of signed Verity volume worked neither via the kernel nor in userspace, can't activate. Follow-up for #20691
308 lines
15 KiB
Bash
Executable File
308 lines
15 KiB
Bash
Executable File
#!/usr/bin/env bash
|
|
# -*- mode: shell-script; indent-tabs-mode: nil; sh-basic-offset: 4; -*-
|
|
# ex: ts=8 sw=4 sts=4 et filetype=sh
|
|
set -eux
|
|
set -o pipefail
|
|
|
|
export SYSTEMD_LOG_LEVEL=debug
|
|
|
|
cleanup()
|
|
{
|
|
if [ -z "${image_dir}" ]; then
|
|
return
|
|
fi
|
|
rm -rf "${image_dir}"
|
|
}
|
|
|
|
cd /tmp
|
|
|
|
image_dir="$(mktemp -d -t -p /tmp tmp.XXXXXX)"
|
|
if [ -z "${image_dir}" ] || [ ! -d "${image_dir}" ]; then
|
|
echo "mktemp under /tmp failed"
|
|
exit 1
|
|
fi
|
|
|
|
trap cleanup EXIT
|
|
|
|
cp /usr/share/minimal* "${image_dir}/"
|
|
image="${image_dir}/minimal_0"
|
|
roothash="$(cat "${image}.roothash")"
|
|
|
|
os_release="$(test -e /etc/os-release && echo /etc/os-release || echo /usr/lib/os-release)"
|
|
|
|
systemd-dissect --json=short "${image}.raw" | grep -q -F '{"rw":"ro","designator":"root","partition_uuid":null,"partition_label":null,"fstype":"squashfs","architecture":null,"verity":"external"'
|
|
systemd-dissect "${image}.raw" | grep -q -F "MARKER=1"
|
|
systemd-dissect "${image}.raw" | grep -q -F -f <(sed 's/"//g' "$os_release")
|
|
|
|
mv "${image}.verity" "${image}.fooverity"
|
|
mv "${image}.roothash" "${image}.foohash"
|
|
systemd-dissect --json=short "${image}.raw" --root-hash="${roothash}" --verity-data="${image}.fooverity" | grep -q -F '{"rw":"ro","designator":"root","partition_uuid":null,"partition_label":null,"fstype":"squashfs","architecture":null,"verity":"external"'
|
|
systemd-dissect "${image}.raw" --root-hash="${roothash}" --verity-data="${image}.fooverity" | grep -q -F "MARKER=1"
|
|
systemd-dissect "${image}.raw" --root-hash="${roothash}" --verity-data="${image}.fooverity" | grep -q -F -f <(sed 's/"//g' "$os_release")
|
|
mv "${image}.fooverity" "${image}.verity"
|
|
mv "${image}.foohash" "${image}.roothash"
|
|
|
|
mkdir -p "${image_dir}/mount" "${image_dir}/mount2"
|
|
systemd-dissect --mount "${image}.raw" "${image_dir}/mount"
|
|
grep -q -F -f "$os_release" "${image_dir}/mount/usr/lib/os-release"
|
|
grep -q -F -f "$os_release" "${image_dir}/mount/etc/os-release"
|
|
grep -q -F "MARKER=1" "${image_dir}/mount/usr/lib/os-release"
|
|
# Verity volume should be shared (opened only once)
|
|
systemd-dissect --mount "${image}.raw" "${image_dir}/mount2"
|
|
verity_count=$(find /dev/mapper/ -name "*verity*" | wc -l)
|
|
# In theory we should check that count is exactly one. In practice, libdevmapper
|
|
# randomly and unpredictably fails with an unhelpful EINVAL when a device is open
|
|
# (and even mounted and in use), so best-effort is the most we can do for now
|
|
if [ "${verity_count}" -lt 1 ]; then
|
|
echo "Verity device ${image}.raw not found in /dev/mapper/"
|
|
exit 1
|
|
fi
|
|
umount "${image_dir}/mount"
|
|
umount "${image_dir}/mount2"
|
|
|
|
systemd-run -P -p RootImage="${image}.raw" cat /usr/lib/os-release | grep -q -F "MARKER=1"
|
|
mv "${image}.verity" "${image}.fooverity"
|
|
mv "${image}.roothash" "${image}.foohash"
|
|
systemd-run -P -p RootImage="${image}.raw" -p RootHash="${image}.foohash" -p RootVerity="${image}.fooverity" cat /usr/lib/os-release | grep -q -F "MARKER=1"
|
|
# Let's use the long option name just here as a test
|
|
systemd-run -P --property RootImage="${image}.raw" --property RootHash="${roothash}" --property RootVerity="${image}.fooverity" cat /usr/lib/os-release | grep -q -F "MARKER=1"
|
|
mv "${image}.fooverity" "${image}.verity"
|
|
mv "${image}.foohash" "${image}.roothash"
|
|
|
|
# Make a GPT disk on the fly, with the squashfs as partition 1 and the verity hash tree as partition 2
|
|
machine="$(uname -m)"
|
|
if [ "${machine}" = "x86_64" ]; then
|
|
root_guid=4f68bce3-e8cd-4db1-96e7-fbcaf984b709
|
|
verity_guid=2c7357ed-ebd2-46d9-aec1-23d437ec2bf5
|
|
signature_guid=41092b05-9fc8-4523-994f-2def0408b176
|
|
architecture="x86-64"
|
|
elif [ "${machine}" = "i386" ] || [ "${machine}" = "i686" ] || [ "${machine}" = "x86" ]; then
|
|
root_guid=44479540-f297-41b2-9af7-d131d5f0458a
|
|
verity_guid=d13c5d3b-b5d1-422a-b29f-9454fdc89d76
|
|
signature_guid=5996fc05-109c-48de-808b-23fa0830b676
|
|
architecture="x86"
|
|
elif [ "${machine}" = "aarch64" ] || [ "${machine}" = "aarch64_be" ] || [ "${machine}" = "armv8b" ] || [ "${machine}" = "armv8l" ]; then
|
|
root_guid=b921b045-1df0-41c3-af44-4c6f280d3fae
|
|
verity_guid=df3300ce-d69f-4c92-978c-9bfb0f38d820
|
|
signature_guid=6db69de6-29f4-4758-a7a5-962190f00ce3
|
|
architecture="arm64"
|
|
elif [ "${machine}" = "arm" ]; then
|
|
root_guid=69dad710-2ce4-4e3c-b16c-21a1d49abed3
|
|
verity_guid=7386cdf2-203c-47a9-a498-f2ecce45a2d6
|
|
signature_guid=42b0455f-eb11-491d-98d3-56145ba9d037
|
|
architecture="arm"
|
|
elif [ "${machine}" = "ia64" ]; then
|
|
root_guid=993d8d3d-f80e-4225-855a-9daf8ed7ea97
|
|
verity_guid=86ed10d5-b607-45bb-8957-d350f23d0571
|
|
signature_guid=e98b36ee-32ba-4882-9b12-0ce14655f46a
|
|
architecture="ia64"
|
|
elif [ "${machine}" = "ppc64le" ]; then
|
|
# There's no support of PPC in the discoverable partitions specification yet, so skip the rest for now
|
|
echo OK >/testok
|
|
exit 0
|
|
else
|
|
echo "Unexpected uname -m: ${machine} in testsuite-50.sh, please fix me"
|
|
exit 1
|
|
fi
|
|
# du rounds up to block size, which is more helpful for partitioning
|
|
root_size="$(du -k "${image}.raw" | cut -f1)"
|
|
verity_size="$(du -k "${image}.verity" | cut -f1)"
|
|
signature_size=4
|
|
# 4MB seems to be the minimum size blkid will accept, below that probing fails
|
|
dd if=/dev/zero of="${image}.gpt" bs=512 count=$((8192+root_size*2+verity_size*2+signature_size*2))
|
|
# sfdisk seems unhappy if the size overflows into the next unit, eg: 1580KiB will be interpreted as 1MiB
|
|
# so do some basic rounding up if the minimal image is more than 1 MB
|
|
if [ "${root_size}" -ge 1024 ]; then
|
|
root_size="$((root_size/1024 + 1))MiB"
|
|
else
|
|
root_size="${root_size}KiB"
|
|
fi
|
|
verity_size="$((verity_size * 2))KiB"
|
|
signature_size="$((signature_size * 2))KiB"
|
|
|
|
HAVE_OPENSSL=0
|
|
if systemctl --version | grep -q -- +OPENSSL ; then
|
|
HAVE_OPENSSL=1
|
|
# Unfortunately OpenSSL insists on reading some config file, hence provide one with mostly placeholder contents
|
|
cat >> "${image}.openssl.cnf" <<EOF
|
|
[ req ]
|
|
prompt = no
|
|
distinguished_name = req_distinguished_name
|
|
|
|
[ req_distinguished_name ]
|
|
C = DE
|
|
ST = Test State
|
|
L = Test Locality
|
|
O = Org Name
|
|
OU = Org Unit Name
|
|
CN = Common Name
|
|
emailAddress = test@email.com
|
|
EOF
|
|
|
|
# Create key pair
|
|
openssl req -config "${image}.openssl.cnf" -new -x509 -newkey rsa:1024 -keyout "${image}.key" -out "${image}.crt" -days 365 -nodes
|
|
# Sign Verity root hash with it
|
|
openssl smime -sign -nocerts -noattr -binary -in "${image}.roothash" -inkey "${image}.key" -signer "${image}.crt" -outform der -out "${image}.roothash.p7s"
|
|
# Generate signature partition JSON data
|
|
echo '{"rootHash":"'"${roothash}"'","signature":"'"$(base64 -w 0 < "${image}.roothash.p7s")"'"}' > "${image}.verity-sig"
|
|
# Pad it
|
|
truncate -s "${signature_size}" "${image}.verity-sig"
|
|
# Register certificate in the (userspace) verity key ring
|
|
mkdir -p /run/verity.d
|
|
ln -s "${image}.crt" /run/verity.d/ok.crt
|
|
fi
|
|
|
|
# Construct a UUID from hash
|
|
# input: 11111111222233334444555566667777
|
|
# output: 11111111-2222-3333-4444-555566667777
|
|
uuid="$(head -c 32 "${image}.roothash" | sed -r 's/(.{8})(.{4})(.{4})(.{4})(.+)/\1-\2-\3-\4-\5/')"
|
|
echo -e "label: gpt\nsize=${root_size}, type=${root_guid}, uuid=${uuid}" | sfdisk "${image}.gpt"
|
|
uuid="$(tail -c 32 "${image}.roothash" | sed -r 's/(.{8})(.{4})(.{4})(.{4})(.+)/\1-\2-\3-\4-\5/')"
|
|
echo -e "size=${verity_size}, type=${verity_guid}, uuid=${uuid}" | sfdisk "${image}.gpt" --append
|
|
if [ "${HAVE_OPENSSL}" -eq 1 ]; then
|
|
echo -e "size=${signature_size}, type=${signature_guid}" | sfdisk "${image}.gpt" --append
|
|
fi
|
|
sfdisk --part-label "${image}.gpt" 1 "Root Partition"
|
|
sfdisk --part-label "${image}.gpt" 2 "Verity Partition"
|
|
if [ "${HAVE_OPENSSL}" -eq 1 ]; then
|
|
sfdisk --part-label "${image}.gpt" 3 "Signature Partition"
|
|
fi
|
|
loop="$(losetup --show -P -f "${image}.gpt")"
|
|
dd if="${image}.raw" of="${loop}p1"
|
|
dd if="${image}.verity" of="${loop}p2"
|
|
if [ "${HAVE_OPENSSL}" -eq 1 ]; then
|
|
dd if="${image}.verity-sig" of="${loop}p3"
|
|
fi
|
|
losetup -d "${loop}"
|
|
|
|
# Derive partition UUIDs from root hash, in UUID syntax
|
|
ROOT_UUID="$(systemd-id128 -u show "$(head -c 32 "${image}.roothash")" -u | tail -n 1 | cut -b 6-)"
|
|
VERITY_UUID="$(systemd-id128 -u show "$(tail -c 32 "${image}.roothash")" -u | tail -n 1 | cut -b 6-)"
|
|
|
|
systemd-dissect --json=short --root-hash "${roothash}" "${image}.gpt" | grep -q '{"rw":"ro","designator":"root","partition_uuid":"'"$ROOT_UUID"'","partition_label":"Root Partition","fstype":"squashfs","architecture":"'"$architecture"'","verity":"yes",'
|
|
systemd-dissect --json=short --root-hash "${roothash}" "${image}.gpt" | grep -q '{"rw":"ro","designator":"root-verity","partition_uuid":"'"$VERITY_UUID"'","partition_label":"Verity Partition","fstype":"DM_verity_hash","architecture":"'"$architecture"'","verity":null,'
|
|
systemd-dissect --root-hash "${roothash}" "${image}.gpt" | grep -q -F "MARKER=1"
|
|
systemd-dissect --root-hash "${roothash}" "${image}.gpt" | grep -q -F -f <(sed 's/"//g' "$os_release")
|
|
|
|
systemd-dissect --root-hash "${roothash}" --mount "${image}.gpt" "${image_dir}/mount"
|
|
grep -q -F -f "$os_release" "${image_dir}/mount/usr/lib/os-release"
|
|
grep -q -F -f "$os_release" "${image_dir}/mount/etc/os-release"
|
|
grep -q -F "MARKER=1" "${image_dir}/mount/usr/lib/os-release"
|
|
umount "${image_dir}/mount"
|
|
|
|
# add explicit -p MountAPIVFS=yes once to test the parser
|
|
systemd-run -P -p RootImage="${image}.gpt" -p RootHash="${roothash}" -p MountAPIVFS=yes cat /usr/lib/os-release | grep -q -F "MARKER=1"
|
|
|
|
systemd-run -P -p RootImage="${image}.raw" -p RootImageOptions="root:nosuid,dev home:ro,dev ro,noatime" mount | grep -F "squashfs" | grep -q -F "nosuid"
|
|
systemd-run -P -p RootImage="${image}.gpt" -p RootImageOptions="root:ro,noatime root:ro,dev" mount | grep -F "squashfs" | grep -q -F "noatime"
|
|
|
|
mkdir -p "${image_dir}/result"
|
|
cat >/run/systemd/system/testservice-50a.service <<EOF
|
|
[Service]
|
|
Type=oneshot
|
|
ExecStart=bash -c "mount >/run/result/a"
|
|
BindPaths=${image_dir}/result:/run/result
|
|
TemporaryFileSystem=/run
|
|
RootImage=${image}.raw
|
|
RootImageOptions=root:ro,noatime home:ro,dev relatime,dev
|
|
RootImageOptions=nosuid,dev
|
|
EOF
|
|
systemctl start testservice-50a.service
|
|
grep -F "squashfs" "${image_dir}/result/a" | grep -q -F "noatime"
|
|
grep -F "squashfs" "${image_dir}/result/a" | grep -q -F -v "nosuid"
|
|
|
|
cat >/run/systemd/system/testservice-50b.service <<EOF
|
|
[Service]
|
|
Type=oneshot
|
|
ExecStart=bash -c "mount >/run/result/b"
|
|
BindPaths=${image_dir}/result:/run/result
|
|
TemporaryFileSystem=/run
|
|
RootImage=${image}.gpt
|
|
RootImageOptions=root:ro,noatime,nosuid home:ro,dev nosuid,dev
|
|
RootImageOptions=home:ro,dev nosuid,dev,%%foo
|
|
# this is the default, but let's specify once to test the parser
|
|
MountAPIVFS=yes
|
|
EOF
|
|
systemctl start testservice-50b.service
|
|
grep -F "squashfs" "${image_dir}/result/b" | grep -q -F "noatime"
|
|
|
|
# Check that specifier escape is applied %%foo → %foo
|
|
busctl get-property org.freedesktop.systemd1 /org/freedesktop/systemd1/unit/testservice_2d50b_2eservice org.freedesktop.systemd1.Service RootImageOptions | grep -F "nosuid,dev,%foo"
|
|
|
|
# Now do some checks with MountImages, both by itself, with options and in combination with RootImage, and as single FS or GPT image
|
|
systemd-run -P -p MountImages="${image}.gpt:/run/img1 ${image}.raw:/run/img2" cat /run/img1/usr/lib/os-release | grep -q -F "MARKER=1"
|
|
systemd-run -P -p MountImages="${image}.gpt:/run/img1 ${image}.raw:/run/img2" cat /run/img2/usr/lib/os-release | grep -q -F "MARKER=1"
|
|
systemd-run -P -p MountImages="${image}.gpt:/run/img1 ${image}.raw:/run/img2:nosuid,dev" mount | grep -F "squashfs" | grep -q -F "nosuid"
|
|
systemd-run -P -p MountImages="${image}.gpt:/run/img1:root:nosuid ${image}.raw:/run/img2:home:suid" mount | grep -F "squashfs" | grep -q -F "nosuid"
|
|
systemd-run -P -p MountImages="${image}.raw:/run/img2\:3" cat /run/img2:3/usr/lib/os-release | grep -q -F "MARKER=1"
|
|
systemd-run -P -p MountImages="${image}.raw:/run/img2\:3:nosuid" mount | grep -F "squashfs" | grep -q -F "nosuid"
|
|
systemd-run -P -p TemporaryFileSystem=/run -p RootImage="${image}.raw" -p MountImages="${image}.gpt:/run/img1 ${image}.raw:/run/img2" cat /usr/lib/os-release | grep -q -F "MARKER=1"
|
|
systemd-run -P -p TemporaryFileSystem=/run -p RootImage="${image}.raw" -p MountImages="${image}.gpt:/run/img1 ${image}.raw:/run/img2" cat /run/img1/usr/lib/os-release | grep -q -F "MARKER=1"
|
|
systemd-run -P -p TemporaryFileSystem=/run -p RootImage="${image}.gpt" -p RootHash="${roothash}" -p MountImages="${image}.gpt:/run/img1 ${image}.raw:/run/img2" cat /run/img2/usr/lib/os-release | grep -q -F "MARKER=1"
|
|
cat >/run/systemd/system/testservice-50c.service <<EOF
|
|
[Service]
|
|
MountAPIVFS=yes
|
|
TemporaryFileSystem=/run
|
|
RootImage=${image}.raw
|
|
MountImages=${image}.gpt:/run/img1:root:noatime:home:relatime
|
|
MountImages=${image}.raw:/run/img2\:3:nosuid
|
|
ExecStart=bash -c "cat /run/img1/usr/lib/os-release >/run/result/c"
|
|
ExecStart=bash -c "cat /run/img2:3/usr/lib/os-release >>/run/result/c"
|
|
ExecStart=bash -c "mount >>/run/result/c"
|
|
BindPaths=${image_dir}/result:/run/result
|
|
Type=oneshot
|
|
EOF
|
|
systemctl start testservice-50c.service
|
|
grep -q -F "MARKER=1" "${image_dir}/result/c"
|
|
grep -F "squashfs" "${image_dir}/result/c" | grep -q -F "noatime"
|
|
grep -F "squashfs" "${image_dir}/result/c" | grep -q -F -v "nosuid"
|
|
|
|
# Adding a new mounts at runtime works if the unit is in the active state,
|
|
# so use Type=notify to make sure there's no race condition in the test
|
|
cat >/run/systemd/system/testservice-50d.service <<EOF
|
|
[Service]
|
|
RuntimeMaxSec=300
|
|
Type=notify
|
|
RemainAfterExit=yes
|
|
MountAPIVFS=yes
|
|
PrivateTmp=yes
|
|
ExecStart=/bin/sh -c 'systemd-notify --ready; while ! grep -q -F MARKER /tmp/img/usr/lib/os-release; do sleep 0.1; done; mount | grep -F "/tmp/img" | grep -q -F "nosuid"'
|
|
EOF
|
|
systemctl start testservice-50d.service
|
|
|
|
systemctl mount-image --mkdir testservice-50d.service "${image}.raw" /tmp/img root:nosuid
|
|
|
|
while systemctl show -P SubState testservice-50d.service | grep -q running
|
|
do
|
|
sleep 0.1
|
|
done
|
|
|
|
systemctl is-active testservice-50d.service
|
|
|
|
# ExtensionImages will set up an overlay
|
|
systemd-run -P --property ExtensionImages=/usr/share/app0.raw --property RootImage="${image}.raw" cat /opt/script0.sh | grep -q -F "extension-release.app0"
|
|
systemd-run -P --property ExtensionImages=/usr/share/app0.raw --property RootImage="${image}.raw" cat /usr/lib/systemd/system/some_file | grep -q -F "MARKER=1"
|
|
systemd-run -P --property ExtensionImages="/usr/share/app0.raw /usr/share/app1.raw" --property RootImage="${image}.raw" cat /opt/script0.sh | grep -q -F "extension-release.app0"
|
|
systemd-run -P --property ExtensionImages="/usr/share/app0.raw /usr/share/app1.raw" --property RootImage="${image}.raw" cat /usr/lib/systemd/system/some_file | grep -q -F "MARKER=1"
|
|
systemd-run -P --property ExtensionImages="/usr/share/app0.raw /usr/share/app1.raw" --property RootImage="${image}.raw" cat /opt/script1.sh | grep -q -F "extension-release.app2"
|
|
systemd-run -P --property ExtensionImages="/usr/share/app0.raw /usr/share/app1.raw" --property RootImage="${image}.raw" cat /usr/lib/systemd/system/other_file | grep -q -F "MARKER=1"
|
|
cat >/run/systemd/system/testservice-50e.service <<EOF
|
|
[Service]
|
|
MountAPIVFS=yes
|
|
TemporaryFileSystem=/run
|
|
RootImage=${image}.raw
|
|
ExtensionImages=/usr/share/app0.raw /usr/share/app1.raw:nosuid
|
|
# Relevant only for sanitizer runs
|
|
UnsetEnvironment=LD_PRELOAD
|
|
ExecStart=/bin/bash -c '/opt/script0.sh | grep ID'
|
|
ExecStart=/bin/bash -c '/opt/script1.sh | grep ID'
|
|
Type=oneshot
|
|
RemainAfterExit=yes
|
|
EOF
|
|
systemctl start testservice-50e.service
|
|
systemctl is-active testservice-50e.service
|
|
|
|
echo OK >/testok
|
|
|
|
exit 0
|