冰朔
1f28461c7e
Close the Shanghai experiment without denying the existing Zhuyuan subject, parameterize the native layout for the JD Cloud disk, and add fail-closed one-time probe preparation, arming, and return verification.
104 lines
3.9 KiB
Shell
Executable file
104 lines
3.9 KiB
Shell
Executable file
#!/usr/bin/env bash
|
|
set -euo pipefail
|
|
|
|
[[ $# -eq 4 ]] || {
|
|
echo "usage: prepare-jd-native-probe-once.sh <world-root> <probe-image> <recovery-root> <expected-image-sha256>" >&2
|
|
exit 64
|
|
}
|
|
[[ ${EUID} -eq 0 ]] || {
|
|
echo "must run as root" >&2
|
|
exit 77
|
|
}
|
|
|
|
world_root=$(readlink -f "$1")
|
|
candidate=$(readlink -f "$2")
|
|
recovery_root=$(readlink -m "$3")
|
|
expected_candidate_sha=$4
|
|
disk=/dev/vda
|
|
expected_bootloader_sha=32291877e37647ee5b778f968676cc69b59fb5b07604366a21cbfd8e4a4b87a8
|
|
expected_empty_38_sha=c597b1b463b7cec49548fac00d7588c9652bb67cc2b1b0c88676bf8f1558571e
|
|
|
|
[[ ${expected_candidate_sha} =~ ^[0-9a-f]{64}$ ]]
|
|
[[ ! -e ${recovery_root} ]]
|
|
grep -q '^node_id: JD-FD-PRIMARY$' "${world_root}/CURRENT.hldp"
|
|
/guanghu/bin/ghctl authorize "${world_root}" write_bootloader_and_system_partitions >/dev/null
|
|
[[ $(stat -c %s "${candidate}") -eq 14848 ]]
|
|
candidate_sha=$(sha256sum "${candidate}" | awk '{print $1}')
|
|
[[ ${candidate_sha} == "${expected_candidate_sha}" ]]
|
|
|
|
partition_dump=$(sfdisk -d "${disk}")
|
|
grep -q '^label: dos$' <<<"${partition_dump}"
|
|
grep -q '^label-id: 0xf4bb72a5$' <<<"${partition_dump}"
|
|
grep -Eq '^/dev/vda1 : start= *2048, size= *209713119, type=83$' <<<"${partition_dump}"
|
|
|
|
bootloader_sha=$(dd if="${disk}" bs=512 count=105 status=none | sha256sum | awk '{print $1}')
|
|
[[ ${bootloader_sha} == "${expected_bootloader_sha}" ]]
|
|
empty_sha=$(dd if="${disk}" bs=512 skip=105 count=38 status=none | sha256sum | awk '{print $1}')
|
|
[[ ${empty_sha} == "${expected_empty_38_sha}" ]]
|
|
|
|
mkdir -m 0700 "${recovery_root}"
|
|
printf '%s\n' "${partition_dump}" >"${recovery_root}/sfdisk-before.txt"
|
|
dd if="${disk}" of="${recovery_root}/first-2MiB.before.bin" bs=1M count=2 status=none
|
|
disk_sectors=$(blockdev --getsz "${disk}")
|
|
dd if="${disk}" of="${recovery_root}/last-2MiB.before.bin" \
|
|
bs=512 skip=$((disk_sectors - 4096)) count=4096 status=none
|
|
cp /boot/grub/grub.cfg "${recovery_root}/grub.cfg.before"
|
|
cp /boot/grub/grubenv "${recovery_root}/grubenv.before"
|
|
cp /etc/default/grub "${recovery_root}/default-grub.before"
|
|
cp /etc/grub.d/40_custom "${recovery_root}/40_custom.before"
|
|
cp "${candidate}" "${recovery_root}/jd-native-probe-stage9.img"
|
|
cat /proc/sys/kernel/random/boot_id >"${recovery_root}/linux-boot-id.before"
|
|
|
|
install -m 0755 /dev/stdin /etc/grub.d/41_guanghu_jd_native_once <<'EOF'
|
|
#!/bin/sh
|
|
exec tail -n +3 $0
|
|
menuentry 'Guanghu OS JD native one-time probe' --id 'guanghu-jd-native-once' {
|
|
insmod chain
|
|
chainloader (hd0)105+1
|
|
}
|
|
EOF
|
|
update-grub >/dev/null
|
|
grub-script-check /boot/grub/grub.cfg
|
|
grep -q "menuentry 'Guanghu OS JD native one-time probe'.*'guanghu-jd-native-once'" \
|
|
/boot/grub/grub.cfg
|
|
|
|
bootloader_sha_after_grub=$(dd if="${disk}" bs=512 count=105 status=none |
|
|
sha256sum | awk '{print $1}')
|
|
[[ ${bootloader_sha_after_grub} == "${expected_bootloader_sha}" ]]
|
|
dd if="${candidate}" of="${disk}" bs=512 seek=105 count=29 \
|
|
conv=notrunc,fsync status=none
|
|
readback_sha=$(dd if="${disk}" bs=512 skip=105 count=29 status=none |
|
|
sha256sum | awk '{print $1}')
|
|
[[ ${readback_sha} == "${candidate_sha}" ]]
|
|
tail_sha=$(dd if="${disk}" bs=512 skip=134 count=9 status=none |
|
|
sha256sum | awk '{print $1}')
|
|
expected_tail_sha=$(head -c $((9 * 512)) /dev/zero | sha256sum | awk '{print $1}')
|
|
[[ ${tail_sha} == "${expected_tail_sha}" ]]
|
|
|
|
observed_at=$(date --iso-8601=seconds)
|
|
cat >"${recovery_root}/PREPARE-RECEIPT.hldp" <<EOF
|
|
schema: guanghu.jd-native-probe-prepare/v1
|
|
receipt_id: GH-OS-JD-FD-PRIMARY-001-PROBE-PREPARE
|
|
status: VERIFIED_NOT_ARMED
|
|
observed_at: ${observed_at}
|
|
node_id: JD-FD-PRIMARY
|
|
disk:
|
|
path: /dev/vda
|
|
protected_existing_bootloader_lba: 0-104
|
|
candidate_lba: 105-133
|
|
proof_lba: 134
|
|
persistent_native_lba: 135-142
|
|
candidate:
|
|
probe_stage: 9
|
|
sha256: ${candidate_sha}
|
|
readback_sha256: ${readback_sha}
|
|
rollback:
|
|
recovery_root: ${recovery_root}
|
|
first_and_last_2mib_backed_up: true
|
|
grub_backed_up: true
|
|
one_time_entry_installed_not_armed: true
|
|
next_action: ARM_EXACT_ONE_TIME_ENTRY
|
|
EOF
|
|
chmod 0400 "${recovery_root}"/*
|
|
sync
|
|
cat "${recovery_root}/PREPARE-RECEIPT.hldp"
|