test/units/testsuite-50.sh

   1 #!/usr/bin/env bash
   2 # -*- mode: shell-script; indent-tabs-mode: nil; sh-basic-offset: 4; -*-
   3 # ex: ts=8 sw=4 sts=4 et filetype=sh
   4 set -ex
   5 set -o pipefail
   6
   7 export SYSTEMD_LOG_LEVEL=debug
   8
   9 cleanup()
  10 {
  11     if [ -z "${image_dir}" ]; then
  12         return
  13     fi
  14     rm -rf "${image_dir}"
  15 }
  16
  17 cd /tmp
  18
  19 image_dir="$(mktemp -d -t -p /tmp tmp.XXXXXX)"
  20 if [ -z "${image_dir}" ] || [ ! -d "${image_dir}" ]; then
  21     echo "mktemp under /tmp failed"
  22     exit 1
  23 fi
  24
  25 trap cleanup EXIT
  26
  27 cp /usr/share/minimal.* "${image_dir}/"
  28 image="${image_dir}/minimal"
  29 roothash="$(cat ${image}.roothash)"
  30
  31 /usr/lib/systemd/systemd-dissect ${image}.raw | grep -q -F "Found read-only 'root' partition of type squashfs with verity"
  32 /usr/lib/systemd/systemd-dissect ${image}.raw | grep -q -F "MARKER=1"
  33 /usr/lib/systemd/systemd-dissect ${image}.raw | grep -q -F -f /usr/lib/os-release
  34
  35 mv ${image}.verity ${image}.fooverity
  36 mv ${image}.roothash ${image}.foohash
  37 /usr/lib/systemd/systemd-dissect ${image}.raw --root-hash=${roothash} --verity-data=${image}.fooverity | grep -q -F "Found read-only 'root' partition of type squashfs with verity"
  38 /usr/lib/systemd/systemd-dissect ${image}.raw --root-hash=${roothash} --verity-data=${image}.fooverity | grep -q -F "MARKER=1"
  39 /usr/lib/systemd/systemd-dissect ${image}.raw --root-hash=${roothash} --verity-data=${image}.fooverity | grep -q -F -f /usr/lib/os-release
  40 mv ${image}.fooverity ${image}.verity
  41 mv ${image}.foohash ${image}.roothash
  42
  43 mkdir -p ${image_dir}/mount ${image_dir}/mount2
  44 /usr/lib/systemd/systemd-dissect --mount ${image}.raw ${image_dir}/mount
  45 cat ${image_dir}/mount/usr/lib/os-release | grep -q -F -f /usr/lib/os-release
  46 cat ${image_dir}/mount/etc/os-release | grep -q -F -f /usr/lib/os-release
  47 cat ${image_dir}/mount/usr/lib/os-release | grep -q -F "MARKER=1"
  48 # Verity volume should be shared (opened only once)
  49 /usr/lib/systemd/systemd-dissect --mount ${image}.raw ${image_dir}/mount2
  50 verity_count=$(ls -1 /dev/mapper/ | grep -c verity)
  51 # In theory we should check that count is exactly one. In practice, libdevmapper
  52 # randomly and unpredictably fails with an unhelpful EINVAL when a device is open
  53 # (and even mounted and in use), so best-effort is the most we can do for now
  54 if [ ${verity_count} -lt 1 ]; then
  55     echo "Verity device ${image}.raw not found in /dev/mapper/"
  56     exit 1
  57 fi
  58 umount ${image_dir}/mount
  59 umount ${image_dir}/mount2
  60
  61 systemd-run -t --property RootImage=${image}.raw /usr/bin/cat /usr/lib/os-release | grep -q -F "MARKER=1"
  62 mv ${image}.verity ${image}.fooverity
  63 mv ${image}.roothash ${image}.foohash
  64 systemd-run -t --property RootImage=${image}.raw --property RootHash=${image}.foohash --property RootVerity=${image}.fooverity /usr/bin/cat /usr/lib/os-release | grep -q -F "MARKER=1"
  65 systemd-run -t --property RootImage=${image}.raw --property RootHash=${roothash} --property RootVerity=${image}.fooverity /usr/bin/cat /usr/lib/os-release | grep -q -F "MARKER=1"
  66 mv ${image}.fooverity ${image}.verity
  67 mv ${image}.foohash ${image}.roothash
  68
  69 # Make a GPT disk on the fly, with the squashfs as partition 1 and the verity hash tree as partition 2
  70 machine="$(uname -m)"
  71 if [ "${machine}" = "x86_64" ]; then
  72     root_guid=4f68bce3-e8cd-4db1-96e7-fbcaf984b709
  73     verity_guid=2c7357ed-ebd2-46d9-aec1-23d437ec2bf5
  74 elif [ "${machine}" = "i386" ] || [ "${machine}" = "i686" ] || [ "${machine}" = "x86" ]; then
  75     root_guid=44479540-f297-41b2-9af7-d131d5f0458a
  76     verity_guid=d13c5d3b-b5d1-422a-b29f-9454fdc89d76
  77 elif [ "${machine}" = "aarch64" ] || [ "${machine}" = "aarch64_be" ] || [ "${machine}" = "armv8b" ] || [ "${machine}" = "armv8l" ]; then
  78     root_guid=b921b045-1df0-41c3-af44-4c6f280d3fae
  79     verity_guid=df3300ce-d69f-4c92-978c-9bfb0f38d820
  80 elif [ "${machine}" = "arm" ]; then
  81     root_guid=69dad710-2ce4-4e3c-b16c-21a1d49abed3
  82     verity_guid=7386cdf2-203c-47a9-a498-f2ecce45a2d6
  83 elif [ "${machine}" = "ia64" ]; then
  84     root_guid=993d8d3d-f80e-4225-855a-9daf8ed7ea97
  85     verity_guid=86ed10d5-b607-45bb-8957-d350f23d0571
  86 else
  87     echo "Unexpected uname -m: ${machine} in testsuite-50.sh, please fix me"
  88     exit 1
  89 fi
  90 # du rounds up to block size, which is more helpful for partitioning
  91 root_size="$(du -k ${image}.raw | cut -f1)"
  92 verity_size="$(du -k ${image}.verity | cut -f1)"
  93 # 4MB seems to be the minimum size blkid will accept, below that probing fails
  94 dd if=/dev/zero of=${image}.gpt bs=512 count=$((8192+${root_size}*2+${verity_size}*2))
  95 # sfdisk seems unhappy if the size overflows into the next unit, eg: 1580KiB will be interpreted as 1MiB
  96 # so do some basic rounding up if the minimal image is more than 1 MB
  97 if [ ${root_size} -ge 1024 ]; then
  98     root_size="$((${root_size}/1024 + 1))MiB"
  99 else
 100     root_size="${root_size}KiB"
 101 fi
 102 verity_size="${verity_size}KiB"
 103 uuid="$(head -c 32 ${image}.roothash | cut -c -8)-$(head -c 32 ${image}.roothash | cut -c 9-12)-$(head -c 32 ${image}.roothash | cut -c 13-16)-$(head -c 32 ${image}.roothash | cut -c 17-20)-$(head -c 32 ${image}.roothash | cut -c 21-)"
 104 echo -e "label: gpt\nsize=${root_size}, type=${root_guid}, uuid=${uuid}" | sfdisk ${image}.gpt
 105 uuid="$(tail -c 32 ${image}.roothash | cut -c -8)-$(tail -c 32 ${image}.roothash | cut -c 9-12)-$(tail -c 32 ${image}.roothash | cut -c 13-16)-$(tail -c 32 ${image}.roothash | cut -c 17-20)-$(tail -c 32 ${image}.roothash | cut -c 21-)"
 106 echo -e "size=${verity_size}, type=${verity_guid}, uuid=${uuid}" | sfdisk ${image}.gpt --append
 107 sfdisk --part-label ${image}.gpt 1 "Root Partition"
 108 sfdisk --part-label ${image}.gpt 2 "Verity Partition"
 109 loop="$(losetup --show -P -f ${image}.gpt)"
 110 dd if=${image}.raw of=${loop}p1
 111 dd if=${image}.verity of=${loop}p2
 112 losetup -d ${loop}
 113
 114 /usr/lib/systemd/systemd-dissect --root-hash ${roothash} ${image}.gpt | grep -q "Found read-only 'root' partition (UUID $(head -c 32 ${image}.roothash)) of type squashfs for .* with verity on partition #1"
 115 /usr/lib/systemd/systemd-dissect --root-hash ${roothash} ${image}.gpt | grep -q "Found read-only 'root-verity' partition (UUID $(tail -c 32 ${image}.roothash)) of type DM_verity_hash for .* on partition #2"
 116 /usr/lib/systemd/systemd-dissect --root-hash ${roothash} ${image}.gpt | grep -q -F "MARKER=1"
 117 /usr/lib/systemd/systemd-dissect --root-hash ${roothash} ${image}.gpt | grep -q -F -f /usr/lib/os-release
 118
 119 /usr/lib/systemd/systemd-dissect --root-hash ${roothash} --mount ${image}.gpt ${image_dir}/mount
 120 cat ${image_dir}/mount/usr/lib/os-release | grep -q -F -f /usr/lib/os-release
 121 cat ${image_dir}/mount/etc/os-release | grep -q -F -f /usr/lib/os-release
 122 cat ${image_dir}/mount/usr/lib/os-release | grep -q -F "MARKER=1"
 123 umount ${image_dir}/mount
 124
 125 systemd-run -t --property RootImage=${image}.gpt --property RootHash=${roothash} /usr/bin/cat /usr/lib/os-release | grep -q -F "MARKER=1"
 126
 127 systemd-run -t --property RootImage=${image}.raw --property RootImageOptions="1:ro,noatime 2:ro,dev nosuid,dev" --property MountAPIVFS=yes mount | grep -F "squashfs" | grep -q -F "nosuid"
 128 systemd-run -t --property RootImage=${image}.gpt --property RootImageOptions="1:ro,noatime 1:ro,dev" --property MountAPIVFS=yes mount | grep -F "squashfs" | grep -q -F "noatime"
 129
 130 cat > /run/systemd/system/testservice-50a.service <<EOF
 131 [Service]
 132 Type=oneshot
 133 ExecStart=mount
 134 MountAPIVFS=yes
 135 RootImage=${image}.raw
 136 RootImageOptions=1:ro,noatime,nosuid 2:ro,dev noatime,dev
 137 RootImageOptions=nosuid,dev
 138 EOF
 139 systemctl start testservice-50a.service
 140 journalctl -b -u testservice-50a.service | grep -F "squashfs" | grep -q -F "noatime"
 141 journalctl -b -u testservice-50a.service | grep -F "squashfs" | grep -q -F -v "nosuid"
 142
 143 cat > /run/systemd/system/testservice-50b.service <<EOF
 144 [Service]
 145 Type=oneshot
 146 ExecStart=mount
 147 MountAPIVFS=yes
 148 RootImage=${image}.gpt
 149 RootImageOptions=1:ro,noatime,nosuid 2:ro,dev nosuid,dev
 150 RootImageOptions=2:ro,dev nosuid,dev,%%foo
 151 EOF
 152 systemctl start testservice-50b.service
 153 journalctl -b -u testservice-50b.service | grep -F "squashfs" | grep -q -F "noatime"
 154
 155 # Check that specifier escape is applied %%foo -> %foo
 156 busctl get-property org.freedesktop.systemd1 /org/freedesktop/systemd1/unit/testservice_2d50b_2eservice org.freedesktop.systemd1.Service RootImageOptions | grep -F "nosuid,dev,%foo"
 157
 158 echo OK > /testok
 159
 160 exit 0