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constellation/3rdparty/coreos-assembler/verity.patch

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diff --git a/Dockerfile b/Dockerfile
index 80c008a2d..329171970 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -38,3 +38,12 @@ RUN chmod g=u /etc/passwd
# run as `builder` user
USER builder
ENTRYPOINT ["/usr/bin/dumb-init", "/usr/bin/coreos-assembler"]
+
+# Constellation start
+USER root
+
+RUN dnf -y update && \
+ dnf install -y veritysetup && \
+ dnf clean all
+
+USER builder
+# Constellation end
diff --git a/mantle/platform/qemu.go b/mantle/platform/qemu.go
index d4d5eafa7..20f156315 100644
--- a/mantle/platform/qemu.go
+++ b/mantle/platform/qemu.go
@@ -449,7 +449,7 @@ type QemuBuilder struct {
func NewQemuBuilder() *QemuBuilder {
ret := QemuBuilder{
Firmware: "bios",
- Swtpm: true,
+ Swtpm: false,
Pdeathsig: true,
Argv: []string{},
}
diff --git a/src/cosalib/qemuvariants.py b/src/cosalib/qemuvariants.py
index 8d57803b1..cdad6aeba 100644
--- a/src/cosalib/qemuvariants.py
+++ b/src/cosalib/qemuvariants.py
@@ -81,7 +81,7 @@ VARIANTS = {
"image_suffix": "tar.gz",
"gzip": True,
"convert_options": {
- '-o': 'preallocation=off'
+ '-o': 'preallocation=full'
},
"tar_members": [
"disk.raw"
diff --git a/src/create_disk.sh b/src/create_disk.sh
index 61d52cd96..fa3fe1655 100755
--- a/src/create_disk.sh
+++ b/src/create_disk.sh
@@ -188,6 +188,7 @@ set -x
SDPART=1
BOOTPN=3
ROOTPN=4
+VERITYHASHPN=5
# Make the size relative
if [ "${rootfs_size}" != "0" ]; then
rootfs_size="+${rootfs_size}"
@@ -201,7 +202,8 @@ case "$arch" in
-n 1:0:+1M -c 1:BIOS-BOOT -t 1:21686148-6449-6E6F-744E-656564454649 \
-n ${EFIPN}:0:+127M -c ${EFIPN}:EFI-SYSTEM -t ${EFIPN}:C12A7328-F81F-11D2-BA4B-00A0C93EC93B \
-n ${BOOTPN}:0:+384M -c ${BOOTPN}:boot \
- -n ${ROOTPN}:0:"${rootfs_size}" -c ${ROOTPN}:root -t ${ROOTPN}:0FC63DAF-8483-4772-8E79-3D69D8477DE4
+ -n ${ROOTPN}:0:"${rootfs_size}" -c ${ROOTPN}:root_raw -A ${ROOTPN}:set:60 -A ${ROOTPN}:set:63 -t ${ROOTPN}:0FC63DAF-8483-4772-8E79-3D69D8477DE4 \
+ -n ${VERITYHASHPN}:0:+32M -c ${VERITYHASHPN}:root_verity
sgdisk -p "$disk"
;;
aarch64)
@@ -212,7 +214,8 @@ case "$arch" in
-n ${RESERVEDPN}:0:+1M -c ${RESERVEDPN}:reserved -t ${RESERVEDPN}:8DA63339-0007-60C0-C436-083AC8230908 \
-n ${EFIPN}:0:+127M -c ${EFIPN}:EFI-SYSTEM -t ${EFIPN}:C12A7328-F81F-11D2-BA4B-00A0C93EC93B \
-n ${BOOTPN}:0:+384M -c ${BOOTPN}:boot \
- -n ${ROOTPN}:0:"${rootfs_size}" -c ${ROOTPN}:root -t ${ROOTPN}:0FC63DAF-8483-4772-8E79-3D69D8477DE4
+ -n ${ROOTPN}:0:"${rootfs_size}" -c ${ROOTPN}:root_raw -A ${ROOTPN}:set:60 -A ${ROOTPN}:set:63 -t ${ROOTPN}:0FC63DAF-8483-4772-8E79-3D69D8477DE4 \
+ -n ${VERITYHASHPN}:0:+32M -c ${VERITYHASHPN}:root_verity
sgdisk -p "$disk"
;;
s390x)
@@ -222,6 +225,7 @@ case "$arch" in
-n ${SDPART}:0:+200M -c ${SDPART}:se -t ${SDPART}:0FC63DAF-8483-4772-8E79-3D69D8477DE4 \
-n ${BOOTPN}:0:+384M -c ${BOOTPN}:boot \
- -n ${ROOTPN}:0:"${rootfs_size}" -c ${ROOTPN}:root -t ${ROOTPN}:0FC63DAF-8483-4772-8E79-3D69D8477DE4
+ -n ${ROOTPN}:0:"${rootfs_size}" -c ${ROOTPN}:root_raw -A ${ROOTPN}:set:60 -A ${ROOTPN}:set:63 -t ${ROOTPN}:0FC63DAF-8483-4772-8E79-3D69D8477DE4 \
+ -n ${VERITYHASHPN}:0:+32M -c ${VERITYHASHPN}:root_verity
else
# NB: in the bare metal case when targeting ECKD DASD disks, this
# partition table is not what actually gets written to disk in the end:
@@ -231,7 +235,8 @@ case "$arch" in
-U "${uninitialized_gpt_uuid}" \
-n ${BOOTPN}:0:+384M -c ${BOOTPN}:boot \
- -n ${ROOTPN}:0:"${rootfs_size}" -c ${ROOTPN}:root -t ${ROOTPN}:0FC63DAF-8483-4772-8E79-3D69D8477DE4
+ -n ${ROOTPN}:0:"${rootfs_size}" -c ${ROOTPN}:root_raw -A ${ROOTPN}:set:60 -A ${ROOTPN}:set:63 -t ${ROOTPN}:0FC63DAF-8483-4772-8E79-3D69D8477DE4 \
+ -n ${VERITYHASHPN}:0:+32M -c ${VERITYHASHPN}:root_verity
fi
sgdisk -p "$disk"
;;
ppc64le)
@@ -243,7 +248,8 @@ case "$arch" in
-n ${PREPPN}:0:+4M -c ${PREPPN}:PowerPC-PReP-boot -t ${PREPPN}:9E1A2D38-C612-4316-AA26-8B49521E5A8B \
-n ${RESERVEDPN}:0:+1M -c ${RESERVEDPN}:reserved -t ${RESERVEDPN}:8DA63339-0007-60C0-C436-083AC8230908 \
-n ${BOOTPN}:0:+384M -c ${BOOTPN}:boot \
- -n ${ROOTPN}:0:"${rootfs_size}" -c ${ROOTPN}:root -t ${ROOTPN}:0FC63DAF-8483-4772-8E79-3D69D8477DE4
+ -n ${ROOTPN}:0:"${rootfs_size}" -c ${ROOTPN}:root_raw -A ${ROOTPN}:set:60 -A ${ROOTPN}:set:63 -t ${ROOTPN}:0FC63DAF-8483-4772-8E79-3D69D8477DE4 \
+ -n ${VERITYHASHPN}:0:+32M -c ${VERITYHASHPN}:root_verity
sgdisk -p "$disk"
;;
esac
@@ -251,10 +257,11 @@ esac
udevtrig
zipl_dev="${disk}${SDPART}"
boot_dev="${disk}${BOOTPN}"
root_dev="${disk}${ROOTPN}"
+hash_dev="${disk}${VERITYHASHPN}"
bootargs=
# If the bootfs_metadata_csum_seed image.yaml knob is set to true then
# we'll enable the metadata_csum_seed filesystem feature. This is
# gated behind an image.yaml knob because support for this feature
@@ -305,17 +315,17 @@ case "${rootfs_type}" in
# And reflinks are *very* useful for the container stack with overlayfs (and in general).
# So basically, we're choosing performance over half-implemented security.
# Eventually, we'd like both - once XFS gains verity (probably not too hard),
# we could unconditionally enable it there.
# shellcheck disable=SC2086
- mkfs.ext4 -b "$(getconf PAGE_SIZE)" -O verity -L root "${root_dev}" -U "${rootfs_uuid}" ${rootfs_args}
+ mkfs.ext4 -b "$(getconf PAGE_SIZE)" -O verity -L root_raw "${root_dev}" -U "${rootfs_uuid}" ${rootfs_args}
;;
btrfs)
# shellcheck disable=SC2086
- mkfs.btrfs -L root "${root_dev}" -U "${rootfs_uuid}" ${rootfs_args}
+ mkfs.btrfs -L root_raw "${root_dev}" -U "${rootfs_uuid}" ${rootfs_args}
;;
xfs|"")
# shellcheck disable=SC2086
- mkfs.xfs "${root_dev}" -L root -m reflink=1 -m uuid="${rootfs_uuid}" ${rootfs_args}
+ mkfs.xfs "${root_dev}" -L root_raw -m reflink=1 -m uuid="${rootfs_uuid}" -s "size=4096" ${rootfs_args}
;;
*)
echo "Unknown rootfs_type: $rootfs_type" 1>&2
@@ -536,11 +428,10 @@ s390x)
esac
ostree config --repo $rootfs/ostree/repo set sysroot.bootloader "${bootloader_backend}"
-# Opt-in to https://github.com/ostreedev/ostree/pull/1767 AKA
-# https://github.com/ostreedev/ostree/issues/1265
-ostree config --repo $rootfs/ostree/repo set sysroot.readonly true
+# constellation: setting readonly to false interestingly stops ostree from remounting anything as rw
+ostree config --repo $rootfs/ostree/repo set sysroot.readonly false
# enable support for GRUB password
if [ "${bootloader_backend}" = "none" ]; then
ostree config --repo $rootfs/ostree/repo set sysroot.bls-append-except-default 'grub_users=""'
fi
@@ -542,15 +548,16 @@ s390x)
# enable support for GRUB password
if [ "${bootloader_backend}" = "none" ]; then
ostree config --repo $rootfs/ostree/repo set sysroot.bls-append-except-default 'grub_users=""'
fi
-touch $rootfs/boot/ignition.firstboot
+# constellation: do not enable ignition on first boot
+# touch $rootfs/boot/ignition.firstboot
# Finally, add the immutable bit to the physical root; we don't
# expect people to be creating anything there. A use case for
# OSTree in general is to support installing *inside* the existing
# root of a deployed OS, so OSTree doesn't do this by default, but
# we have no reason not to enable it here. Administrators should
# generally expect that state data is in /etc and /var; if anything
# else is in /sysroot it's probably by accident.
chattr +i $rootfs
@@ -557,10 +564,21 @@ chattr +i $rootfs
fstrim -a -v
# Ensure the filesystem journals are flushed
-for fs in $rootfs/boot $rootfs; do
+mount -o remount,ro $rootfs/boot
+for fs in $rootfs; do
mount -o remount,ro $fs
xfs_freeze -f $fs
done
umount -R $rootfs
rmdir $rootfs
+
+# setup dm-verity and disable audit logs
+veritysetup_out=$(veritysetup format "${root_dev}" "${hash_dev}")
+verity_root_hash=$(echo "${veritysetup_out}" | grep 'Root hash:' | sed --expression='s/Root hash:\s*//g')
+bootfs_mount=/tmp/boot
+rm -rf "${bootfs_mount}"
+mkdir -p "${bootfs_mount}"
+mount "${disk}${BOOTPN}" "${bootfs_mount}"
+sed -i -e "s/^options .*/\0 audit=0 verity.sysroot=${verity_root_hash}/g" "${bootfs_mount}/loader.1/entries/ostree-1-fedora-coreos.conf"
+umount "${bootfs_mount}"
diff --git a/src/gf-fsck b/src/gf-fsck
index 2d07eca2a..46c137672 100755
--- a/src/gf-fsck
+++ b/src/gf-fsck
@@ -28,7 +28,7 @@ for pt in $partitions; do
done
# And fsck the main rootfs
-root=$(coreos_gf findfs-label root)
+root=$(coreos_gf findfs-label root_raw)
coreos_gf debug sh "fsck.xfs -f -n ${root}"
coreos_gf_shutdown
diff --git a/src/libguestfish.sh b/src/libguestfish.sh
index 82cfcf86e..635fb9eaa 100755
--- a/src/libguestfish.sh
+++ b/src/libguestfish.sh
@@ -64,7 +64,7 @@ coreos_gf_run_mount() {
shift
fi
coreos_gf_run "$@"
- root=$(coreos_gf findfs-label root)
+ root=$(coreos_gf findfs-label root_raw)
coreos_gf ${mntarg} "${root}" /
local boot
boot=$(coreos_gf findfs-label boot)
diff --git a/src/vmdeps.txt b/src/vmdeps.txt
index 6c6045840..ddbece267 100644
--- a/src/vmdeps.txt
+++ b/src/vmdeps.txt
@@ -27,5 +27,8 @@ gdisk xfsprogs e2fsprogs dosfstools btrfs-progs
# needed for basic CA support
ca-certificates
tar
+
+# dm-verity
+veritysetup
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