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Diffstat (limited to '')
| -rwxr-xr-x | test/units/TEST-50-DISSECT.sh | 215 |
1 files changed, 215 insertions, 0 deletions
diff --git a/test/units/TEST-50-DISSECT.sh b/test/units/TEST-50-DISSECT.sh new file mode 100755 index 0000000..0e378a8 --- /dev/null +++ b/test/units/TEST-50-DISSECT.sh @@ -0,0 +1,215 @@ +#!/usr/bin/env bash +# SPDX-License-Identifier: LGPL-2.1-or-later +set -eux +set -o pipefail + +# shellcheck source=test/units/test-control.sh +. "$(dirname "$0")"/test-control.sh + +# shellcheck source=test/units/util.sh +. "$(dirname "$0")"/util.sh + +# Setup shared stuff & run all subtests + +at_exit() { + set +e + + if [[ -z "${IMAGE_DIR:-}" ]]; then + return + fi + + while read -r dir; do + if mountpoint -q "$dir"; then + umount -Rv "$dir" + fi + done < <(find "${IMAGE_DIR}" -mindepth 1 -maxdepth 1 -type d) + + rm -rf "$IMAGE_DIR" +} + +trap at_exit EXIT + +: "Setup base images" + +export SYSTEMD_LOG_LEVEL=debug +export ARCHITECTURE +export IMAGE_DIR +export MACHINE +export MINIMAL_IMAGE +export MINIMAL_IMAGE_ROOTHASH +export OPENSSL_CONFIG +export OS_RELEASE +export ROOT_GUID +export SIGNATURE_GUID +export VERITY_GUID + +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 [[ "$machine" =~ ^(i386|i686|x86)$ ]]; 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 [[ "$machine" =~ ^(aarch64|aarch64_be|armv8b|armv8l)$ ]]; 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 [[ "$machine" == "loongarch64" ]]; then + ROOT_GUID=77055800-792c-4f94-b39a-98c91b762bb6 + VERITY_GUID=f3393b22-e9af-4613-a948-9d3bfbd0c535 + SIGNATURE_GUID=5afb67eb-ecc8-4f85-ae8e-ac1e7c50e7d0 + ARCHITECTURE="loongarch64" +elif [[ "$machine" == "s390x" ]]; then + ROOT_GUID=5eead9a9-fe09-4a1e-a1d7-520d00531306 + VERITY_GUID=b325bfbe-c7be-4ab8-8357-139e652d2f6b + SIGNATURE_GUID=c80187a5-73a3-491a-901a-017c3fa953e9 + ARCHITECTURE="s390x" +elif [[ "$machine" == "ppc64le" ]]; then + ROOT_GUID=c31c45e6-3f39-412e-80fb-4809c4980599 + VERITY_GUID=906bd944-4589-4aae-a4e4-dd983917446a + SIGNATURE_GUID=d4a236e7-e873-4c07-bf1d-bf6cf7f1c3c6 + ARCHITECTURE="ppc64-le" +elif [[ "$machine" == "riscv64" ]]; then + ROOT_GUID=72ec70a6-cf74-40e6-bd49-4bda08e8f224 + VERITY_GUID=b6ed5582-440b-4209-b8da-5ff7c419ea3d + SIGNATURE_GUID=efe0f087-ea8d-4469-821a-4c2a96a8386a + ARCHITECTURE="riscv64" +elif [[ "$machine" == "riscv32" ]]; then + ROOT_GUID=60d5a7fe-8e7d-435c-b714-3dd8162144e1 + VERITY_GUID=ae0253be-1167-4007-ac68-43926c14c5de + SIGNATURE_GUID=3a112a75-8729-4380-b4cf-764d79934448 + ARCHITECTURE="riscv32" +else + echo "Unexpected uname -m: $machine in TEST-50-DISSECT.sh, please fix me" + exit 1 +fi + +udevadm control --log-level=debug + +IMAGE_DIR="$(mktemp -d --tmpdir="" TEST-50-IMAGES.XXX)" +cp -v /usr/share/minimal* "$IMAGE_DIR/" +MINIMAL_IMAGE="$IMAGE_DIR/minimal_0" +MINIMAL_IMAGE_ROOTHASH="$(<"$MINIMAL_IMAGE.roothash")" + +install_extension_images + +OS_RELEASE="$(test -e /etc/os-release && echo /etc/os-release || echo /usr/lib/os-release)" + +if systemctl --version | grep -q -- +OPENSSL ; then + # The openssl binary is installed conditionally. If we have OpenSSL support enabled and openssl is + # missing, fail early with a proper error message. + if ! command -v openssl &>/dev/null; then + echo "openssl binary is missing" >/failed + exit 1 + fi + + OPENSSL_CONFIG="$(mktemp)" + # Unfortunately OpenSSL insists on reading some config file, hence provide one with mostly placeholder contents + cat >"${OPENSSL_CONFIG:?}" <<EOF +[ req ] +prompt = no +distinguished_name = req_distinguished_name + +[ req_distinguished_name ] +C = DE +ST = Test State +L = Test Locality +O = Org Name +OU = Org Unit Name +CN = Common Name +emailAddress = test@email.com +EOF +fi + +# Make a GPT disk on the fly, with the squashfs as partition 1 and the verity hash tree as partition 2 +# +# du rounds up to block size, which is more helpful for partitioning +root_size="$(du --apparent-size -k "$MINIMAL_IMAGE.raw" | cut -f1)" +verity_size="$(du --apparent-size -k "$MINIMAL_IMAGE.verity" | cut -f1)" +signature_size=4 +# 4MB seems to be the minimum size blkid will accept, below that probing fails +dd if=/dev/zero of="$MINIMAL_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" + +if [[ -n "${OPENSSL_CONFIG:-}" ]]; then + # Create key pair + openssl req -config "$OPENSSL_CONFIG" -new -x509 -newkey rsa:1024 \ + -keyout "$MINIMAL_IMAGE.key" -out "$MINIMAL_IMAGE.crt" -days 365 -nodes + # Sign Verity root hash with it + openssl smime -sign -nocerts -noattr -binary \ + -in "$MINIMAL_IMAGE.roothash" \ + -inkey "$MINIMAL_IMAGE.key" \ + -signer "$MINIMAL_IMAGE.crt" \ + -outform der \ + -out "$MINIMAL_IMAGE.roothash.p7s" + # Generate signature partition JSON data + echo '{"rootHash":"'"$MINIMAL_IMAGE_ROOTHASH"'","signature":"'"$(base64 -w 0 <"$MINIMAL_IMAGE.roothash.p7s")"'"}' >"$MINIMAL_IMAGE.verity-sig" + # Pad it + truncate -s "$signature_size" "$MINIMAL_IMAGE.verity-sig" + # Register certificate in the (userspace) verity key ring + mkdir -p /run/verity.d + ln -s "$MINIMAL_IMAGE.crt" /run/verity.d/ok.crt +fi + +# Construct a UUID from hash +# input: 11111111222233334444555566667777 +# output: 11111111-2222-3333-4444-555566667777 +uuid="$(head -c 32 "$MINIMAL_IMAGE.roothash" | sed -r 's/(.{8})(.{4})(.{4})(.{4})(.+)/\1-\2-\3-\4-\5/')" +echo -e "label: gpt\nsize=$root_size, type=$ROOT_GUID, uuid=$uuid" | sfdisk "$MINIMAL_IMAGE.gpt" +uuid="$(tail -c 32 "$MINIMAL_IMAGE.roothash" | sed -r 's/(.{8})(.{4})(.{4})(.{4})(.+)/\1-\2-\3-\4-\5/')" +echo -e "size=$verity_size, type=$VERITY_GUID, uuid=$uuid" | sfdisk "$MINIMAL_IMAGE.gpt" --append +if [[ -n "${OPENSSL_CONFIG:-}" ]]; then + echo -e "size=$signature_size, type=$SIGNATURE_GUID" | sfdisk "$MINIMAL_IMAGE.gpt" --append +fi +sfdisk --part-label "$MINIMAL_IMAGE.gpt" 1 "Root Partition" +sfdisk --part-label "$MINIMAL_IMAGE.gpt" 2 "Verity Partition" +if [[ -n "${OPENSSL_CONFIG:-}" ]]; then + sfdisk --part-label "$MINIMAL_IMAGE.gpt" 3 "Signature Partition" +fi +loop="$(losetup --show -P -f "$MINIMAL_IMAGE.gpt")" +partitions=( + "${loop:?}p1" + "${loop:?}p2" +) +if [[ -n "${OPENSSL_CONFIG:-}" ]]; then + partitions+=("${loop:?}p3") +fi +# The kernel sometimes(?) does not emit "add" uevent for loop block partition devices. +# Let's not expect the devices to be initialized. +udevadm wait --timeout 60 --settle --initialized=no "${partitions[@]}" +udevadm lock --device="${loop}p1" dd if="$MINIMAL_IMAGE.raw" of="${loop}p1" +udevadm lock --device="${loop}p2" dd if="$MINIMAL_IMAGE.verity" of="${loop}p2" +if [[ -n "${OPENSSL_CONFIG:-}" ]]; then + udevadm lock --device="${loop}p3" dd if="$MINIMAL_IMAGE.verity-sig" of="${loop}p3" +fi +losetup -d "$loop" +udevadm settle --timeout=60 + +: "Run subtests" + +run_subtests + +touch /testok |