[isar-cip-core PATCH v2 0/6] secureboot with efibootguard


Quirin Gylstorff
 

From: Quirin Gylstorff <quirin.gylstorff@siemens.com>

This patchset adds secureboot with efibootguard to cip-core.

The image build signs the efibootguard bootloader (bootx64.efi) and generates
a signed [unified kernel image](https://systemd.io/BOOT_LOADER_SPECIFICATION/).
A unified kernel image packs the kernel, initramfs and the kernel command-line
in one binary object. As the kernel command-line is immutable after the build
process, the previous selection of the root file system with a command-line parameter is no longer
possible. Therefore the selection of the root file-system occurs now in the initramfs.

The image uses an A/B partition layout to update the root file system. The sample implementation to
select the root file system generates a uuid and stores the id in /etc/os-release and in the initramfs.
During boot the initramfs compares its own uuid with the uuid stored in /etc/os-release of each rootfs.
If a match is found the rootfs is used for the boot.

Changes V2:

- rebase to [1]
- removed luahandler patch as it now part of [1]
- add handling for sw-description

[1]: a/b rootfsupdate with software update

Quirin Gylstorff (6):
kernel: add fat for qemu-amd64
isar-patch: Add initramfs-config patch
secure-boot: select boot partition in initramfs
secure-boot: Add secure boot with unified kernel image
secure-boot: Add Debian snakeoil keys for ease-of-use
doc: Add README for secureboot

classes/image_uuid.bbclass | 29 +++
conf/distro/debian-buster-backports.list | 1 +
conf/distro/preferences.ovmf-snakeoil.conf | 3 +
doc/README.secureboot.md | 188 ++++++++++++++++
...-support-Generate-a-custom-initramfs.patch | 207 ++++++++++++++++++
kas-cip.yml | 3 +
kas/opt/ebg-secure-boot-base.yml | 17 ++
kas/opt/ebg-secure-boot-snakeoil.yml | 27 +++
kas/opt/ebg-swu.yml | 2 +-
recipes-core/images/cip-core-image.bb | 2 +-
recipes-core/images/files/sw-description.tmpl | 6 +-
.../ebg-secure-boot-secrets_0.1.bb | 51 +++++
.../ebg-secure-boot-secrets/files/README.md | 1 +
.../files/control.tmpl | 12 +
.../files/sign_secure_image.sh.tmpl | 22 ++
.../ebg-secure-boot-snakeoil_0.1.bb | 35 +++
.../files/control.tmpl | 12 +
.../files/sign_secure_image.sh | 36 +++
.../ovmf-binaries/files/control.tmpl | 11 +
.../ovmf-binaries/ovmf-binaries_0.1.bb | 30 +++
.../linux/files/qemu-amd64_defconfig | 6 +
.../files/initramfs.image_uuid.hook | 33 +++
.../files/initramfs.lsblk.hook | 29 +++
.../initramfs-config/files/postinst.ext | 3 +
.../files/secure-boot-debian-local-patch | 77 +++++++
.../initramfs-abrootfs-secureboot_0.1.bb | 38 ++++
...enerate-sb-db-from-existing-certificate.sh | 16 ++
scripts/generate_secure_boot_keys.sh | 51 +++++
.../wic/plugins/source/efibootguard-boot.py | 87 +++++++-
.../wic/plugins/source/efibootguard-efi.py | 40 +++-
scripts/start-efishell.sh | 12 +
start-qemu.sh | 54 ++++-
wic/ebg-signed-bootloader.inc | 2 +
wic/qemu-amd64-efibootguard.wks | 6 +-
34 files changed, 1119 insertions(+), 30 deletions(-)
create mode 100644 classes/image_uuid.bbclass
create mode 100644 conf/distro/debian-buster-backports.list
create mode 100644 conf/distro/preferences.ovmf-snakeoil.conf
create mode 100644 doc/README.secureboot.md
create mode 100644 isar-patches/v7-0001-meta-support-Generate-a-custom-initramfs.patch
create mode 100644 kas/opt/ebg-secure-boot-base.yml
create mode 100644 kas/opt/ebg-secure-boot-snakeoil.yml
create mode 100644 recipes-devtools/ebg-secure-boot-secrets/ebg-secure-boot-secrets_0.1.bb
create mode 100644 recipes-devtools/ebg-secure-boot-secrets/files/README.md
create mode 100644 recipes-devtools/ebg-secure-boot-secrets/files/control.tmpl
create mode 100644 recipes-devtools/ebg-secure-boot-secrets/files/sign_secure_image.sh.tmpl
create mode 100644 recipes-devtools/ebg-secure-boot-snakeoil/ebg-secure-boot-snakeoil_0.1.bb
create mode 100644 recipes-devtools/ebg-secure-boot-snakeoil/files/control.tmpl
create mode 100644 recipes-devtools/ebg-secure-boot-snakeoil/files/sign_secure_image.sh
create mode 100644 recipes-devtools/ovmf-binaries/files/control.tmpl
create mode 100644 recipes-devtools/ovmf-binaries/ovmf-binaries_0.1.bb
create mode 100644 recipes-support/initramfs-config/files/initramfs.image_uuid.hook
create mode 100644 recipes-support/initramfs-config/files/initramfs.lsblk.hook
create mode 100644 recipes-support/initramfs-config/files/postinst.ext
create mode 100644 recipes-support/initramfs-config/files/secure-boot-debian-local-patch
create mode 100644 recipes-support/initramfs-config/initramfs-abrootfs-secureboot_0.1.bb
create mode 100755 scripts/generate-sb-db-from-existing-certificate.sh
create mode 100755 scripts/generate_secure_boot_keys.sh
create mode 100755 scripts/start-efishell.sh
create mode 100644 wic/ebg-signed-bootloader.inc

--
2.20.1

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