From: Emanuele Giuseppe Esposito <eesposit@xxxxxxxxxx>
redhat/kernel.spec: add uki_addons to create UKI kernel cmdline addons
Upstream Status: RHEL-Only
The folder redhat/addons will contain all addons configs specifying the
UKI kernel cmdline addons to be created in the next build. An addon
config is simply a .addon plain text file, where any line
is taken as kernel cmdline, except for the ones starting with '#',
which will be automatically ignored.
redhat/scripts/uki_addons.py will take care of parsing all configs and
folders in redhat/addons and call 'ukify' to create the actual addons.
The output addon filename will be a concatenation of all folders in
redhat/addons that are part of the addon config path.
For example, an addon config redhat/addons/1/2/3/test.addon will result
in generating redhat/addons_output/1-2-3-test.addon.efi.
It is also possible to add .sbat to all the generated addons, by
populating redhat/addons/sbat/sbat.conf. Syntax is same as the addons
config.
At build time, Makefile will create a tar.gz archive (addons.tar.gz)
containing all the files in redhat/addons. It will then passed to the
kernel specfile that will extract the addons from it and generate the
UKI kernel cmdline addons.
Signed-off-by: Emanuele Giuseppe Esposito <eesposit@xxxxxxxxxx>
diff --git a/redhat/Makefile b/redhat/Makefile
index blahblah..blahblah 100644
--- a/redhat/Makefile
+++ b/redhat/Makefile
@@ -679,6 +679,7 @@ sources-rh: $(TARBALL) generate-testpatch-tmp setup-source dist-configs-check
@sed -e "s/%%SPECKVERSION%%/$(SPECKVERSION)/" \
-e "s/%%SPECKPATCHLEVEL%%/$(SPECKPATCHLEVEL)/" \
scripts/gating/rpminspect.yaml > $(SOURCES)/rpminspect.yaml
+ @tar -czf addons.tar.gz addons
@cp scripts/kernel-tools/kvm_stat.logrotate \
keys/rhel*.x509 \
kabi/check-kabi \
@@ -690,6 +691,7 @@ sources-rh: $(TARBALL) generate-testpatch-tmp setup-source dist-configs-check
scripts/mod/mod-partner.list \
scripts/mod/mod-sign.sh \
scripts/mod/mod-kvm.list \
+ scripts/uki_addons.py \
configs/flavors \
configs/generate_all_configs.sh \
configs/merge.py \
@@ -698,6 +700,7 @@ sources-rh: $(TARBALL) generate-testpatch-tmp setup-source dist-configs-check
README.rst \
kernel-local \
dracut-virt.conf \
+ addons.tar.gz \
$(SOURCES)/
@cat $$(ls -1 $(SPECPACKAGE_NAME).changelog-* | sort -t '.' -k 3 -n -r) \
> $(SOURCES)/kernel.changelog
diff --git a/redhat/addons/sbat/.gitkeep b/redhat/addons/sbat/.gitkeep
new file mode 100644
index blahblah..blahblah 100644
--- /dev/null
+++ b/redhat/addons/sbat/.gitkeep
diff --git a/redhat/kernel.spec.template b/redhat/kernel.spec.template
index blahblah..blahblah 100644
--- a/redhat/kernel.spec.template
+++ b/redhat/kernel.spec.template
@@ -792,6 +792,8 @@ BuildRequires: binutils
BuildRequires: lvm2
BuildRequires: systemd-boot-unsigned
# For systemd-stub and systemd-pcrphase
+BuildRequires: systemd-ukify
+# For UKI kernel cmdline addons
BuildRequires: systemd-udev >= 252-1
# For TPM operations in UKI initramfs
BuildRequires: tpm2-tools
@@ -933,6 +935,9 @@ Source86: dracut-virt.conf
Source87: flavors
+Source151: uki_addons.py
+Source152: addons.tar.gz
+
Source100: rheldup3.x509
Source101: rhelkpatch1.x509
@@ -2537,6 +2542,18 @@ BuildKernel() {
fi
mv $KernelUnifiedImage.signed $KernelUnifiedImage
+ tar -xvf %{SOURCE152} -C $KernelUnifiedImageDir
+ KernelAddonsDir="$KernelUnifiedImageDir/addons"
+ KernelAddonsDirOut="$KernelUnifiedImageDir/addons_output"
+ mkdir -p $KernelAddonsDirOut
+ python3 %{SOURCE151} $KernelAddonsDir $KernelAddonsDirOut
+ for addon in "$KernelAddonsDirOut"/*; do
+ %pesign -s -i $addon -o $addon.signed -a %{secureboot_ca_1} -c %{secureboot_key_1} -n %{pesign_name_1}
+ rm -f $addon
+ mv $addon.signed $addon
+ done
+ rm -rf $KernelAddonsDir
+
# signkernel
%endif
@@ -3692,6 +3709,7 @@ fi\
/lib/modules/%{KVERREL}%{?3:+%{3}}/config\
/lib/modules/%{KVERREL}%{?3:+%{3}}/modules.builtin*\
%attr(0644, root, root) /lib/modules/%{KVERREL}%{?3:+%{3}}/%{?-k:%{-k*}}%{!?-k:vmlinuz}-virt.efi\
+/lib/modules/%{KVERREL}%{?3:+%{3}}/addons_output/*.addon.efi\
%ghost /%{image_install_path}/efi/EFI/Linux/%{?-k:%{-k*}}%{!?-k:*}-%{KVERREL}%{?3:+%{3}}.efi\
%endif\
%endif\
diff --git a/redhat/scripts/uki_addons.py b/redhat/scripts/uki_addons.py
new file mode 100644
index blahblah..blahblah 100644
--- /dev/null
+++ b/redhat/scripts/uki_addons.py
@@ -0,0 +1,124 @@
+#!/usr/bin/env python3
+#
+# This script recursively inspects a given uki directory, and creates an addon
+# for each file found.
+#
+# Usage: python uki_addons.py input_dir out_dir
+#
+# This tool requires the systemd-ukify and systemd-boot yum packages.
+#
+# Addon file
+#-----------
+# Each addon terminates with .addon
+# Each addon contains only two types of lines:
+# Lines beginning with '#' are description and thus ignored
+# All other lines are command line to be added.
+# The name of the end resulting addon is taken from the folder hierarchy.
+# For example, and addon in input_dir/test/test2/hello.addon will result in
+# an UKI addon file generated in out_dir called hello-test-test2.addon.efi
+#
+# sbat.conf
+#----------
+# This file is containing the sbat string for *all* addons being created.
+# This file is optional, but when used has to be put in out_dir/sbat/sbat.conf.
+# It follows the same syntax as the addon files, meaning '#' is comment and
+# the rest is taken as sbat string and feed to ukify.
+
+import os
+import sys
+import collections
+import subprocess
+
+SYSTEMD_STUB_PATH = '/usr/lib/systemd/boot/efi/addonx64.efi.stub'
+UKIFY_PATH = '/usr/lib/systemd/ukify'
+SBAT_LOCATION = '/sbat/sbat.conf'
+
+def usage(err):
+ print(f'Usage: {os.path.basename(__file__)} input_dir output_dir')
+ print(f'Error:{err}')
+ sys.exit(1)
+
+def check_clean_arguments(in_dir, out_dir):
+ # Remove end '/'
+ if in_dir[-1:] == '/':
+ in_dir = in_dir[:-1]
+ if out_dir[-1:] == '/':
+ out_dir = out_dir[:-1]
+ if not os.path.isdir(in_dir):
+ usage(f'in_dir {in_dir} is not a dir, or does not exist!')
+ if not os.path.isdir(out_dir):
+ usage(f'out_dir_dir {out_dir} is not a dir, or does not exist!')
+ return in_dir, out_dir
+
+UKICmdlineAddon = collections.namedtuple('UKICmdlineAddon', ['name', 'cmdline'])
+uki_addon_list = []
+
+def parse_addon_conf(path, rstrip=True):
+ with open(path, 'r') as addons:
+ lines = addons.readlines()
+ cmdline = ''
+ for l in lines:
+ l = l.lstrip()
+ if not l:
+ continue
+ if l[0] == '#':
+ continue
+ if rstrip:
+ l = l.rstrip() + ' '
+ cmdline += l
+ if cmdline == '':
+ return ''
+ return cmdline
+
+def parse_in_dir(in_dir):
+ for (dirpath, _, filenames) in os.walk(in_dir):
+ # remove in_dir from path, don't use it for the addon name
+ addon_name = dirpath.replace(in_dir, "", 1)
+ # remove the '/' added by walk after in_dir
+ addon_name = addon_name.replace("/", "",1)
+ # transform remaining '/' in '-'
+ addon_name = addon_name.replace("/", "-")
+ for addon_f in filenames:
+ if addon_f.endswith('.addon'):
+ addon_full_name = addon_name
+ if addon_full_name != '':
+ addon_full_name += '-'
+ addon_full_name += addon_f + '.efi'
+ cmdline = parse_addon_conf(dirpath+'/'+addon_f)
+ if cmdline:
+ uki_addon_list.append(UKICmdlineAddon(addon_full_name, cmdline))
+
+def parse_sbat(in_dir):
+ sbat_loc = in_dir + SBAT_LOCATION
+ if not os.path.isfile(sbat_loc):
+ return
+ return parse_addon_conf(sbat_loc, rstrip=False)
+
+def main(in_dir, out_dir):
+ sbat_string = parse_sbat(in_dir)
+ for uki_addon in uki_addon_list:
+ out_path = out_dir + '/' + uki_addon.name
+ cmd = [
+ f'{UKIFY_PATH}', 'build',
+ f'--stub={SYSTEMD_STUB_PATH}',
+ f'--cmdline="{uki_addon.cmdline}"',
+ f'--output={out_path}']
+ if sbat_string:
+ cmd.append('--sbat="' + sbat_string.rstrip() +'"')
+
+ print(cmd)
+ subprocess.check_call(cmd, text=True)
+
+if __name__ == "__main__":
+ argc = len(sys.argv) - 1
+ if argc != 2:
+ usage('too few or too many parameters!')
+
+ in_dir = sys.argv[1]
+ out_dir = sys.argv[2]
+
+ in_dir, out_dir = check_clean_arguments(in_dir, out_dir)
+ parse_in_dir(in_dir)
+ main(in_dir, out_dir)
+
+
--
https://gitlab.com/cki-project/kernel-ark/-/merge_requests/2917
--
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