Differential D23334 Diff 67220 release/tools/zfs.conf

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release/tools/zfs.conf

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				#!/bin/sh
				#-
				# Copyright (c) 2020 Klara Inc
				# Copyright (c) 2013-2016 Allan Jude
				# Copyright (c) 2013-2018 Devin Teske
				# All rights reserved.
				#
				# Portions of this software were developed by Edward Tomasz Napierala
				# under sponsorship from Klara Inc.
				#
				# Redistribution and use in source and binary forms, with or without
				# modification, are permitted provided that the following conditions
				# are met:
				# 1. Redistributions of source code must retain the above copyright
				# notice, this list of conditions and the following disclaimer.
				# 2. Redistributions in binary form must reproduce the above copyright
				# notice, this list of conditions and the following disclaimer in the
				# documentation and/or other materials provided with the distribution.
				#
				# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
				# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
				gjbUnsubmitted Not Done Inline Actions The /var/mail directory needs atime=on in order to alert of new local mail. gjb: The /var/mail directory needs atime=on in order to alert of new local mail.
				# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
				# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
				# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
				# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
				# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
				# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
				# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
				# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
				# SUCH DAMAGE.
				#
				# $FreeBSD$
				#

				: ${ZFSBOOT_POOL_NAME:=zroot}
				: ${ZFSBOOT_BEROOT_NAME:=ROOT}
				: ${ZFSBOOT_BOOTFS_NAME:=default}

				# Stolen from bsdconfig
				# str_replaceall $string $find $replace [$var_to_set]
				#
				# Replace all occurrences of $find in $string with $replace. If $var_to_set is
				# either missing or NULL, the variable name is produced on standard out for
				# capturing in a sub-shell (which is less recommended due to performance
				# degradation).
				#
				str_replaceall()
				{
				local __left="" __right="$1"
				local __find="$2" __replace="$3" __var_to_set="$4"
				while :; do
				case "$__right" in $__find)
				__left="$__left${__right%%$__find*}$__replace"
				__right="${__right#*$__find}"
				continue
				esac
				break
				done
				__left="$__left${__right#*$__find}"
				if [ "$__var_to_set" ]; then
				setvar "$__var_to_set" "$__left"
				else
				echo "$__left"
				fi
				}

				create_zfs_be_datasets() {
				local OPT OPTSTR

				: ${ZFSBOOT_DATASETS:="
				jrtc27Unsubmitted Not Done Inline Actions Should this be in a file shared by here and usr.sbin/bsdinstall/scripts/zfsboot (and perhaps some other defaults)? Otherwise it'll be far too easy for the VM images to get out of sync with the installer config. jrtc27: Should this be in a file shared by here and usr.sbin/bsdinstall/scripts/zfsboot (and perhaps…
				# DATASET OPTIONS (space separated)

				# Boot Environment [BE] root and default boot dataset
				/$ZFSBOOT_BEROOT_NAME mountpoint=none
				/$ZFSBOOT_BEROOT_NAME/$ZFSBOOT_BOOTFS_NAME mountpoint=/

				# Compress /tmp, allow exec but not setuid
				/tmp mountpoint=/tmp exec=on setuid=off

				# Don't mount /usr so that 'base' files go to the BEROOT
				/usr mountpoint=/usr canmount=off

				# Home directories separated so they are common to all BEs
				/usr/home # NB: /home is a symlink to /usr/home

				# Ports tree
				/usr/ports setuid=off

				# Source tree (compressed)
				/usr/src

				# Create /var and friends
				/var mountpoint=/var canmount=off
				/var/audit exec=off setuid=off
				/var/crash exec=off setuid=off
				/var/log exec=off setuid=off
				/var/mail atime=on
				/var/tmp setuid=off
				"}

				echo "$ZFSBOOT_DATASETS" \| while read dataset options; do
				# Skip blank lines and comments
				case "$dataset" in "#"*\|"") continue; esac
				# Remove potential inline comments in options
				options="${options%%#*}"
				# Replace tabs with spaces
				str_replaceall "$options" " " " " options
				# Reduce contiguous runs of space to one single space
				oldoptions=
				while [ "$oldoptions" != "$options" ]; do
				oldoptions="$options"
				str_replaceall "$options" " " " " options
				done
				# Replace both commas and spaces with ` -o '
				str_replaceall "$options" "[ ,]" " -o " options
				# Create the dataset with desired options
				zfs create ${options:+-o $options} "${ZFSBOOT_POOL_NAME}$dataset" \|\|
				err 1 "Dataset creation failed"
				done
				}

				vm_copy_base() {
				mkdir -p ${DESTDIR}/old
				mdold=$(mdconfig -f ${VMBASE})
				mount /dev/${mdold} ${DESTDIR}/old

				truncate -s ${VMSIZE} ${VMBASE}.tmp
				mkdir -p ${DESTDIR}/new
				mdnew=$(mdconfig -f ${VMBASE}.tmp)

				zpool create \
				-O mountpoint=/ \
				-O canmount=noauto \
				-O compression=on \
				-O atime=off \
				-R ${DESTDIR}/new ${ZFSBOOT_POOL_NAME} /dev/${mdnew}

				create_zfs_be_datasets

				tar -cf- -C ${DESTDIR}/old . \| tar -xUf- -C ${DESTDIR}/new

				umount_loop /dev/${mdold}
				rmdir ${DESTDIR}/old
				mdconfig -d -u ${mdold}

				zpool export ${ZFSBOOT_POOL_NAME}
				rmdir ${DESTDIR}/new
				mdconfig -d -u ${mdnew}
				mv ${VMBASE}.tmp ${VMBASE}
				}

				write_partition_layout() {
				if [ -z "${NOSWAP}" ]; then
				SWAPOPT="-p freebsd-swap/swapfs::${SWAPSIZE}"
				fi

				BOOTFILES="$(env TARGET=${TARGET} TARGET_ARCH=${TARGET_ARCH} \
				WITH_UNIFIED_OBJDIR=yes \
				make -C ${WORLDDIR}/stand -V .OBJDIR)"
				BOOTFILES="$(realpath ${BOOTFILES})"

				case "${TARGET}:${TARGET_ARCH}" in
				amd64:amd64 \| i386:i386)
				mkimg -s gpt -f ${VMFORMAT} \
				-b ${BOOTFILES}/i386/pmbr/pmbr \
				-p freebsd-boot/bootfs:=${BOOTFILES}/i386/gptzfsboot/gptzfsboot \
				${SWAPOPT} \
				-p freebsd-zfs/rootfs:=${VMBASE} \
				-o ${VMIMAGE}
				;;
				jrtc27Unsubmitted Not Done Inline Actions This should be more like vmimage.subr (maybe even by integrating with it?) so you get an ESP and support aarch64. jrtc27: This should be more like vmimage.subr (maybe even by integrating with it?) so you get an ESP…
				*)
				# ENOTSUPP
				return 1
				;;
				esac

				return 0
				}