662 lines
19 KiB
Bash
662 lines
19 KiB
Bash
source "$GENTOO_INSTALL_REPO_DIR/scripts/protection.sh" || exit 1
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################################################
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# Functions
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check_has_program() {
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type "$1" &>/dev/null \
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|| die "Missing program: '$1'"
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}
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sync_time() {
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einfo "Syncing time"
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ntpd -g -q \
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|| die "Could not sync time with remote server"
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einfo "Current date: $(LANG=C date)"
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einfo "Writing time to hardware clock"
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hwclock --systohc --utc \
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|| die "Could not save time to hardware clock"
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}
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check_config() {
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[[ $KEYMAP =~ ^[0-9A-Za-z-]*$ ]] \
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|| die "KEYMAP contains invalid characters"
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# Check hostname per RFC1123
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local hostname_regex='^(([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9\-]*[a-zA-Z0-9])\.)*([A-Za-z0-9]|[A-Za-z0-9][A-Za-z0-9\-]*[A-Za-z0-9])$'
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[[ $HOSTNAME =~ $hostname_regex ]] \
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|| die "'$HOSTNAME' is not a valid hostname"
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[[ -n $DISK_ID_ROOT ]] \
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|| die "You must assign DISK_ID_ROOT"
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[[ -n $DISK_ID_EFI ]] || [[ -n $DISK_ID_BIOS ]] \
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|| die "You must assign DISK_ID_EFI or DISK_ID_BIOS"
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[[ -v "DISK_ID_BIOS" ]] && [[ ! -v "DISK_ID_TO_UUID[$DISK_ID_BIOS]" ]] \
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&& die "Missing uuid for DISK_ID_BIOS, have you made sure it is used?"
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[[ -v "DISK_ID_EFI" ]] && [[ ! -v "DISK_ID_TO_UUID[$DISK_ID_EFI]" ]] \
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&& die "Missing uuid for DISK_ID_EFI, have you made sure it is used?"
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[[ -v "DISK_ID_SWAP" ]] && [[ ! -v "DISK_ID_TO_UUID[$DISK_ID_SWAP]" ]] \
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&& die "Missing uuid for DISK_ID_SWAP, have you made sure it is used?"
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[[ -v "DISK_ID_ROOT" ]] && [[ ! -v "DISK_ID_TO_UUID[$DISK_ID_ROOT]" ]] \
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&& die "Missing uuid for DISK_ID_ROOT, have you made sure it is used?"
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if [[ -v "DISK_ID_EFI" ]]; then
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IS_EFI=true
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else
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IS_EFI=false
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fi
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if [[ $INSTALL_ANSIBLE == "true" ]]; then
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[[ $INSTALL_SSHD == "true" ]] \
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|| die "You must enable INSTALL_SSHD for ansible"
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[[ -n $ANSIBLE_SSH_AUTHORIZED_KEYS ]] \
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|| die "Missing pubkey for ansible user"
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fi
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}
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preprocess_config() {
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check_config
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}
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prepare_installation_environment() {
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einfo "Preparing installation environment"
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check_has_program gpg
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check_has_program hwclock
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check_has_program lsblk
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check_has_program ntpd
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check_has_program partprobe
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check_has_program python3
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check_has_program rhash
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check_has_program sgdisk
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check_has_program uuidgen
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check_has_program wget
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[[ $USED_RAID == "true" ]] \
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&& check_has_program mdadm
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[[ $USED_LUKS == "true" ]] \
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&& check_has_program cryptsetup
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sync_time
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}
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add_summary_entry() {
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local parent="$1"
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local id="$2"
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local name="$3"
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local hint="$4"
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local desc="$5"
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local ptr
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case "$id" in
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"$DISK_ID_BIOS") ptr="[1;32m← bios[m" ;;
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"$DISK_ID_EFI") ptr="[1;32m← efi[m" ;;
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"$DISK_ID_SWAP") ptr="[1;34m← swap[m" ;;
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"$DISK_ID_ROOT") ptr="[1;33m← root[m" ;;
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# \x1f characters compensate for printf byte count and unicode character count mismatch due to '←'
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*) ptr="[1;32m[m$(echo -e "\x1f\x1f")" ;;
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esac
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summary_tree[$parent]+=";$id"
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summary_name[$id]="$name"
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summary_hint[$id]="$hint"
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summary_ptr[$id]="$ptr"
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summary_desc[$id]="$desc"
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}
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summary_color_args() {
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for arg in "$@"; do
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if [[ -v "arguments[$arg]" ]]; then
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printf '%-28s ' "[1;34m$arg[2m=[m${arguments[$arg]}"
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fi
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done
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}
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disk_create_gpt() {
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local new_id="${arguments[new_id]}"
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if [[ $disk_action_summarize_only == "true" ]]; then
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if [[ -v arguments[id] ]]; then
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add_summary_entry "${arguments[id]}" "$new_id" "gpt" "" ""
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else
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add_summary_entry __root__ "$new_id" "${arguments[device]}" "(gpt)" ""
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fi
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return 0
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fi
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local device
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local device_desc=""
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if [[ -v arguments[id] ]]; then
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device="$(resolve_device_by_id "${arguments[id]}")"
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device_desc="$device ($id)"
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else
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device="${arguments[device]}"
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device_desc="$device"
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fi
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local ptuuid="${DISK_ID_TO_UUID[$new_id]}"
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einfo "Creating new gpt partition table ($new_id) on $device_desc"
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sgdisk -Z -U "$ptuuid" "$device" >/dev/null \
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|| die "Could not create new gpt partition table ($new_id) on '$device'"
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partprobe "$device"
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}
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disk_create_partition() {
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local new_id="${arguments[new_id]}"
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local id="${arguments[id]}"
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local size="${arguments[size]}"
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local type="${arguments[type]}"
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if [[ $disk_action_summarize_only == "true" ]]; then
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add_summary_entry "$id" "$new_id" "part" "($type)" "$(summary_color_args size)"
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return 0
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fi
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if [[ $size == "remaining" ]]; then
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arg_size=0
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else
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arg_size="+$size"
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fi
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local device="$(resolve_device_by_id "$id")"
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local partuuid="${DISK_ID_TO_UUID[$new_id]}"
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local extra_args=""
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case "$type" in
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'bios') type='ef02' extra_args='--attributes=0:set:2';;
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'efi') type='ef00' ;;
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'swap') type='8200' ;;
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'raid') type='fd00' ;;
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'luks') type='8309' ;;
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'linux') type='8300' ;;
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*) ;;
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esac
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einfo "Creating partition ($new_id) with type=$type, size=$size on $device"
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# shellcheck disable=SC2086
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sgdisk -n "0:0:$arg_size" -t "0:$type" -u "0:$partuuid" $extra_args "$device" >/dev/null \
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|| die "Could not create new gpt partition ($new_id) on '$device' ($id)"
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partprobe "$device"
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}
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disk_create_raid() {
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local new_id="${arguments[new_id]}"
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local level="${arguments[level]}"
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local name="${arguments[name]}"
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local ids="${arguments[ids]}"
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if [[ $disk_action_summarize_only == "true" ]]; then
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local id
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# Splitting is intentional here
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# shellcheck disable=SC2086
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for id in ${ids//';'/ }; do
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add_summary_entry "$id" "_$new_id" "raid$level" "" "$(summary_color_args name)"
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done
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add_summary_entry __root__ "$new_id" "raid$level" "" "$(summary_color_args name)"
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return 0
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fi
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local devices_desc=""
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local devices=()
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local id
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# Splitting is intentional here
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# shellcheck disable=SC2086
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for id in ${ids//';'/ }; do
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local dev="$(resolve_device_by_id "$id")"
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devices+=("$dev")
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devices_desc+="$dev ($id), "
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done
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devices_desc="${devices_desc:0:-2}"
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local mddevice="/dev/md/$name"
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local uuid="${DISK_ID_TO_UUID[$new_id]}"
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einfo "Creating raid$level ($new_id) on $devices_desc"
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mdadm \
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--create "$mddevice" \
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--verbose \
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--homehost="$HOSTNAME" \
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--metadata=1.2 \
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--raid-devices="${#devices[@]}" \
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--uuid="$uuid" \
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--level="$level" \
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"${devices[@]}" \
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|| die "Could not create raid$level array '$mddevice' ($new_id) on $devices_desc"
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}
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disk_create_luks() {
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local new_id="${arguments[new_id]}"
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local name="${arguments[name]}"
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local id="${arguments[id]}"
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if [[ $disk_action_summarize_only == "true" ]]; then
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add_summary_entry "$id" "$new_id" "luks" "" ""
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return 0
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fi
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local device="$(resolve_device_by_id "$id")"
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local uuid="${DISK_ID_TO_UUID[$new_id]}"
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einfo "Creating luks ($new_id) on $device ($id)"
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local keyfile
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keyfile="$(luks_getkeyfile "$new_id")" \
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|| die "Error in luks_getkeyfile for id=$id"
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cryptsetup luksFormat \
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--type luks2 \
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--uuid "$uuid" \
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--key-file "$keyfile" \
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--cipher aes-xts-plain64 \
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--hash sha512 \
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--pbkdf argon2id \
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--iter-time 4000 \
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--key-size 512 \
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--batch-mode \
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"$device" \
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|| die "Could not create luks on '$device' ($id)"
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mkdir -p "$LUKS_HEADER_BACKUP_DIR" \
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|| die "Could not create luks header backup dir '$LUKS_HEADER_BACKUP_DIR'"
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local header_file="$LUKS_HEADER_BACKUP_DIR/luks-header-$id-${uuid,,}.img"
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[[ ! -e $header_file ]] \
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|| rm "$header_file" \
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|| die "Could not remove old luks header backup file '$header_file'"
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cryptsetup luksHeaderBackup "$device" \
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--header-backup-file "$header_file" \
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|| die "Could not backup luks header on '$device' ($id)"
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cryptsetup open --type luks2 \
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--key-file "$keyfile" \
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"$device" "$name" \
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|| die "Could not open luks encrypted device '$device' ($id)"
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}
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disk_format() {
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local id="${arguments[id]}"
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local type="${arguments[type]}"
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local label="${arguments[label]}"
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if [[ $disk_action_summarize_only == "true" ]]; then
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add_summary_entry "${arguments[id]}" "__fs__${arguments[id]}" "${arguments[type]}" "(fs)" "$(summary_color_args label)"
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return 0
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fi
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local device="$(resolve_device_by_id "$id")"
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einfo "Formatting $device ($id) with $type"
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case "$type" in
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'bios'|'efi')
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if [[ -v "arguments[label]" ]]; then
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mkfs.fat -F 32 -n "$label" "$device" \
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|| die "Could not format device '$device' ($id)"
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else
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mkfs.fat -F 32 "$device" \
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|| die "Could not format device '$device' ($id)"
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fi
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;;
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'swap')
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if [[ -v "arguments[label]" ]]; then
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mkswap -L "$label" "$device" \
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|| die "Could not format device '$device' ($id)"
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else
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mkswap "$device" \
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|| die "Could not format device '$device' ($id)"
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fi
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;;
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'ext4')
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if [[ -v "arguments[label]" ]]; then
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mkfs.ext4 -q -L "$label" "$device" \
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|| die "Could not format device '$device' ($id)"
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else
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mkfs.ext4 -q "$device" \
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|| die "Could not format device '$device' ($id)"
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fi
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;;
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*) die "Unknown filesystem type" ;;
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esac
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}
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apply_disk_action() {
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unset known_arguments
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unset arguments; declare -A arguments; parse_arguments "$@"
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case "${arguments[action]}" in
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'create_gpt') disk_create_gpt ;;
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'create_partition') disk_create_partition ;;
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'create_raid') disk_create_raid ;;
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'create_luks') disk_create_luks ;;
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'format') disk_format ;;
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*) echo "Ignoring invalid action: ${arguments[action]}" ;;
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esac
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}
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print_summary_tree_entry() {
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local indent_chars=""
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local indent="0"
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local d="1"
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local maxd="$((depth - 1))"
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while [[ $d -lt $maxd ]]; do
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if [[ ${summary_depth_continues[$d]} == "true" ]]; then
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indent_chars+='│ '
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else
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indent_chars+=' '
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fi
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indent=$((indent + 2))
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d="$((d + 1))"
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done
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if [[ $maxd -gt 0 ]]; then
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if [[ ${summary_depth_continues[$maxd]} == "true" ]]; then
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indent_chars+='├─'
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else
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indent_chars+='└─'
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fi
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indent=$((indent + 2))
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fi
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local name="${summary_name[$root]}"
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local hint="${summary_hint[$root]}"
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local desc="${summary_desc[$root]}"
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local ptr="${summary_ptr[$root]}"
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local id_name="[2m[m"
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if [[ $root != __* ]]; then
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if [[ $root == _* ]]; then
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id_name="[2m${root:1}[m"
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else
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id_name="[2m${root}[m"
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fi
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fi
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local align=0
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if [[ $indent -lt 33 ]]; then
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align="$((33 - indent))"
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fi
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elog "$indent_chars$(printf "%-${align}s %-47s %s" \
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"$name [2m$hint[m" \
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"$id_name $ptr" \
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"$desc")"
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}
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print_summary_tree() {
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local root="$1"
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local depth="$((depth + 1))"
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local has_children=false
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if [[ -v "summary_tree[$root]" ]]; then
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local children="${summary_tree[$root]}"
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has_children=true
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summary_depth_continues[$depth]=true
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else
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summary_depth_continues[$depth]=false
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fi
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if [[ $root != __root__ ]]; then
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print_summary_tree_entry "$root"
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fi
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if [[ $has_children == "true" ]]; then
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local count="$(tr ';' '\n' <<< "$children" | grep -c '\S')"
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local idx=0
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# Splitting is intentional here
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# shellcheck disable=SC2086
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for id in ${children//';'/ }; do
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idx="$((idx + 1))"
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[[ $idx == "$count" ]] \
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&& summary_depth_continues[$depth]=false
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print_summary_tree "$id"
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# separate blocks by newline
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[[ ${summary_depth_continues[0]} == "true" ]] && [[ $depth == 1 ]] && [[ $idx == "$count" ]] \
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&& elog
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done
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fi
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}
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apply_disk_actions() {
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local param
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local current_params=()
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for param in "${DISK_ACTIONS[@]}"; do
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if [[ $param == ';' ]]; then
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apply_disk_action "${current_params[@]}"
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current_params=()
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else
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current_params+=("$param")
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fi
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done
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}
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summarize_disk_actions() {
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elog "[1mCurrent lsblk output:[m"
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for_line_in <(lsblk \
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|| die "Error in lsblk") elog
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local disk_action_summarize_only=true
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declare -A summary_tree
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declare -A summary_name
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declare -A summary_hint
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declare -A summary_ptr
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declare -A summary_desc
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declare -A summary_depth_continues
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apply_disk_actions
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local depth=-1
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elog
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elog "[1mConfigured disk layout:[m"
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elog ────────────────────────────────────────────────────────────────────────────────
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elog "$(printf '%-26s %-28s %s' NODE ID OPTIONS)"
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elog ────────────────────────────────────────────────────────────────────────────────
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print_summary_tree __root__
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elog ────────────────────────────────────────────────────────────────────────────────
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}
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apply_disk_configuration() {
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# Clean old resolved ids
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rm -rf "$RESOLVABLE_MAP_DIR" &>/dev/null
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unset DISK_ID_TO_RESOLVABLE; declare -A -g DISK_ID_TO_RESOLVABLE
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summarize_disk_actions
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ask "Do you really want to apply this disk configuration?" \
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|| die "Aborted"
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countdown "Applying in " 5
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einfo "Applying disk configuration"
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apply_disk_actions
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einfo "Disk configuration was applied successfully"
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elog "[1mNew lsblk output:[m"
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for_line_in <(lsblk \
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|| die "Error in lsblk") elog
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}
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mount_efivars() {
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# Skip if already mounted
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mountpoint -q -- "/sys/firmware/efi/efivars" \
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&& return
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# Mount efivars
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einfo "Mounting efivars"
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mount -t efivarfs efivarfs "/sys/firmware/efi/efivars" \
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|| die "Could not mount efivarfs"
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}
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mount_by_id() {
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local dev
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local id="$1"
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local mountpoint="$2"
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# Skip if already mounted
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mountpoint -q -- "$mountpoint" \
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&& return
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# Mount device
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einfo "Mounting device with id=$id to '$mountpoint'"
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mkdir -p "$mountpoint" \
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|| die "Could not create mountpoint directory '$mountpoint'"
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dev="$(resolve_device_by_id "$id")" \
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|| die "Could not resolve device with id=$id"
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mount "$dev" "$mountpoint" \
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|| die "Could not mount device '$dev'"
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}
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mount_root() {
|
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mount_by_id "$DISK_ID_ROOT" "$ROOT_MOUNTPOINT"
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}
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|
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bind_repo_dir() {
|
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# Use new location by default
|
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export GENTOO_INSTALL_REPO_DIR="$GENTOO_INSTALL_REPO_BIND"
|
||
|
||
# Bind the repo dir to a location in /tmp,
|
||
# so it can be accessed from within the chroot
|
||
mountpoint -q -- "$GENTOO_INSTALL_REPO_BIND" \
|
||
&& return
|
||
|
||
# Mount root device
|
||
einfo "Bind mounting repo directory"
|
||
mkdir -p "$GENTOO_INSTALL_REPO_BIND" \
|
||
|| die "Could not create mountpoint directory '$GENTOO_INSTALL_REPO_BIND'"
|
||
mount --bind "$GENTOO_INSTALL_REPO_DIR_ORIGINAL" "$GENTOO_INSTALL_REPO_BIND" \
|
||
|| die "Could not bind mount '$GENTOO_INSTALL_REPO_DIR_ORIGINAL' to '$GENTOO_INSTALL_REPO_BIND'"
|
||
}
|
||
|
||
download_stage3() {
|
||
cd "$TMP_DIR" \
|
||
|| die "Could not cd into '$TMP_DIR'"
|
||
|
||
local STAGE3_RELEASES="$GENTOO_MIRROR/releases/amd64/autobuilds/current-$STAGE3_BASENAME/"
|
||
|
||
# Download upstream list of files
|
||
CURRENT_STAGE3="$(download_stdout "$STAGE3_RELEASES")" \
|
||
|| die "Could not retrieve list of tarballs"
|
||
# Decode urlencoded strings
|
||
CURRENT_STAGE3=$(python3 -c 'import sys, urllib.parse; print(urllib.parse.unquote(sys.stdin.read()))' <<< "$CURRENT_STAGE3")
|
||
# Parse output for correct filename
|
||
CURRENT_STAGE3="$(grep -o "\"${STAGE3_BASENAME}-[0-9A-Z]*.tar.xz\"" <<< "$CURRENT_STAGE3" \
|
||
| sort -u | head -1)" \
|
||
|| die "Could not parse list of tarballs"
|
||
# Strip quotes
|
||
CURRENT_STAGE3="${CURRENT_STAGE3:1:-1}"
|
||
# File to indiciate successful verification
|
||
CURRENT_STAGE3_VERIFIED="${CURRENT_STAGE3}.verified"
|
||
|
||
# Download file if not already downloaded
|
||
if [[ -e $CURRENT_STAGE3_VERIFIED ]]; then
|
||
einfo "$STAGE3_BASENAME tarball already downloaded and verified"
|
||
else
|
||
einfo "Downloading $STAGE3_BASENAME tarball"
|
||
download "$STAGE3_RELEASES/${CURRENT_STAGE3}" "${CURRENT_STAGE3}"
|
||
download "$STAGE3_RELEASES/${CURRENT_STAGE3}.DIGESTS.asc" "${CURRENT_STAGE3}.DIGESTS.asc"
|
||
|
||
# Import gentoo keys
|
||
einfo "Importing gentoo gpg key"
|
||
local GENTOO_GPG_KEY="$TMP_DIR/gentoo-keys.gpg"
|
||
download "https://gentoo.org/.well-known/openpgpkey/hu/wtktzo4gyuhzu8a4z5fdj3fgmr1u6tob?l=releng" "$GENTOO_GPG_KEY" \
|
||
|| die "Could not retrieve gentoo gpg key"
|
||
gpg --quiet --import < "$GENTOO_GPG_KEY" \
|
||
|| die "Could not import gentoo gpg key"
|
||
|
||
# Verify DIGESTS signature
|
||
einfo "Verifying DIGEST.asc signature"
|
||
gpg --quiet --verify "${CURRENT_STAGE3}.DIGESTS.asc" \
|
||
|| die "Signature of '${CURRENT_STAGE3}.DIGESTS.asc' invalid!"
|
||
|
||
# Check hashes
|
||
einfo "Verifying tarball integrity"
|
||
rhash -P --check <(grep -B 1 'tar.xz$' "${CURRENT_STAGE3}.DIGESTS.asc") \
|
||
|| die "Checksum mismatch!"
|
||
|
||
# Create verification file in case the script is restarted
|
||
touch_or_die 0644 "$CURRENT_STAGE3_VERIFIED"
|
||
fi
|
||
}
|
||
|
||
extract_stage3() {
|
||
mount_root
|
||
|
||
[[ -n $CURRENT_STAGE3 ]] \
|
||
|| die "CURRENT_STAGE3 is not set"
|
||
[[ -e "$TMP_DIR/$CURRENT_STAGE3" ]] \
|
||
|| die "stage3 file does not exist"
|
||
|
||
# Go to root directory
|
||
cd "$ROOT_MOUNTPOINT" \
|
||
|| die "Could not move to '$ROOT_MOUNTPOINT'"
|
||
# Ensure the directory is empty
|
||
find . -mindepth 1 -maxdepth 1 -not -name 'lost+found' \
|
||
| grep -q . \
|
||
&& die "root directory '$ROOT_MOUNTPOINT' is not empty"
|
||
|
||
# Extract tarball
|
||
einfo "Extracting stage3 tarball"
|
||
tar xpf "$TMP_DIR/$CURRENT_STAGE3" --xattrs --numeric-owner \
|
||
|| die "Error while extracting tarball"
|
||
cd "$TMP_DIR" \
|
||
|| die "Could not cd into '$TMP_DIR'"
|
||
}
|
||
|
||
gentoo_umount() {
|
||
if mountpoint -q -- "$ROOT_MOUNTPOINT"; then
|
||
einfo "Unmounting root filesystem"
|
||
umount -R -l "$ROOT_MOUNTPOINT" \
|
||
|| die "Could not unmount filesystems"
|
||
fi
|
||
}
|
||
|
||
init_bash() {
|
||
source /etc/profile
|
||
umask 0077
|
||
export PS1='(chroot) \[[0;31m\]\u\[[1;31m\]@\h \[[1;34m\]\w \[[m\]\$ \[[m\]'
|
||
}; export -f init_bash
|
||
|
||
env_update() {
|
||
env-update \
|
||
|| die "Error in env-update"
|
||
source /etc/profile \
|
||
|| die "Could not source /etc/profile"
|
||
umask 0077
|
||
}
|
||
|
||
mkdir_or_die() {
|
||
# shellcheck disable=SC2174
|
||
mkdir -m "$1" -p "$2" \
|
||
|| die "Could not create directory '$2'"
|
||
}
|
||
|
||
touch_or_die() {
|
||
touch "$2" \
|
||
|| die "Could not touch '$2'"
|
||
chmod "$1" "$2"
|
||
}
|
||
|
||
gentoo_chroot() {
|
||
if [[ $# -eq 0 ]]; then
|
||
gentoo_chroot /bin/bash --init-file <(echo 'init_bash')
|
||
fi
|
||
|
||
[[ $EXECUTED_IN_CHROOT != "true" ]] \
|
||
|| die "Already in chroot"
|
||
|
||
gentoo_umount
|
||
mount_root
|
||
bind_repo_dir
|
||
|
||
# Copy resolv.conf
|
||
einfo "Preparing chroot environment"
|
||
install --mode=0644 /etc/resolv.conf "$ROOT_MOUNTPOINT/etc/resolv.conf" \
|
||
|| die "Could not copy resolv.conf"
|
||
|
||
# Mount virtual filesystems
|
||
einfo "Mounting virtual filesystems"
|
||
(
|
||
mountpoint -q -- "$ROOT_MOUNTPOINT/proc" || mount -t proc /proc "$ROOT_MOUNTPOINT/proc" || exit 1
|
||
mountpoint -q -- "$ROOT_MOUNTPOINT/tmp" || mount --rbind /tmp "$ROOT_MOUNTPOINT/tmp" || exit 1
|
||
mountpoint -q -- "$ROOT_MOUNTPOINT/sys" || {
|
||
mount --rbind /sys "$ROOT_MOUNTPOINT/sys" &&
|
||
mount --make-rslave "$ROOT_MOUNTPOINT/sys"; } || exit 1
|
||
mountpoint -q -- "$ROOT_MOUNTPOINT/dev" || {
|
||
mount --rbind /dev "$ROOT_MOUNTPOINT/dev" &&
|
||
mount --make-rslave "$ROOT_MOUNTPOINT/dev"; } || exit 1
|
||
) || die "Could not mount virtual filesystems"
|
||
|
||
# Execute command
|
||
einfo "Chrooting..."
|
||
EXECUTED_IN_CHROOT=true \
|
||
TMP_DIR=$TMP_DIR \
|
||
exec chroot -- "$ROOT_MOUNTPOINT" "$GENTOO_INSTALL_REPO_DIR/scripts/main_chroot.sh" "$@" \
|
||
|| die "Failed to chroot into '$ROOT_MOUNTPOINT'"
|
||
}
|