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efitools: fix do_deploy and keys check #1525

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efitools: fix do_deploy and keys check #1525

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fd0d528
base: efitools: sign the UnLock efi at install phase
quaresmajose Oct 29, 2024
219c3aa
base: efitools: check if we have the keys in place
quaresmajose Oct 29, 2024
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14 changes: 14 additions & 0 deletions meta-lmp-base/recipes-bsp/efitools/efitools.inc
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Original file line number Diff line number Diff line change
Expand Up @@ -58,4 +58,18 @@ do_install() {
oe_runmake install DESTDIR='${D}${base_prefix}'
}

do_install:append:class-target() {
if ! sbsign --key ${UEFI_SIGN_KEYDIR}/DB.key \
--cert ${UEFI_SIGN_KEYDIR}/DB.crt \
--output ${D}${datadir}/efitools/efi/UnLock-signed.efi \
${D}${datadir}/efitools/efi/UnLock.efi; then
bbfatal_log "Failed to sign UnLock.efi"
fi

if ! sbverify --cert ${UEFI_SIGN_KEYDIR}/DB.crt \
${D}${datadir}/efitools/efi/UnLock-signed.efi; then
bbfatal_log "Failed to verify UnLock-signed.efi"
fi
}

SSTATE_ALLOW_OVERLAP_FILES += "${DEPLOY_DIR_IMAGE}/LockDown.efi ${DEPLOY_DIR_IMAGE}/UnLock-signed.efi"
20 changes: 6 additions & 14 deletions meta-lmp-base/recipes-bsp/efitools/efitools_git.bb
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Original file line number Diff line number Diff line change
Expand Up @@ -42,10 +42,15 @@ python do_prepare_local_auths() {
dir = d.expand('${UEFI_SIGN_KEYDIR}/')

import shutil
import os

# Use auths already generated by the user
for _ in ('PK', 'KEK', 'DB', 'DBX', 'noPK', 'noKEK'):
shutil.copyfile(dir + _ + '.auth', d.expand('${S}/') + _ + '.auth')
file = _ + '.auth'
src = dir + file
if not os.path.isfile(src):
bb.fatal("File '%s' not found!" % src)
shutil.copyfile(src, d.expand('${S}/') + file)

}
addtask prepare_local_auths after do_configure before do_compile
Expand All @@ -55,19 +60,6 @@ do_deploy() {
install -d ${DEPLOYDIR}
install -m 0600 ${D}${datadir}/efitools/efi/LockDown.efi ${DEPLOYDIR}
install -m 0600 ${WORKDIR}/lockdown.conf ${DEPLOYDIR}

if ! sbsign --key ${UEFI_SIGN_KEYDIR}/DB.key \
--cert ${UEFI_SIGN_KEYDIR}/DB.crt \
--output ${D}${datadir}/efitools/efi/UnLock-signed.efi \
${D}${datadir}/efitools/efi/UnLock.efi; then
bbfatal "Failed to sign UnLock.efi"
fi

if ! sbverify --cert ${UEFI_SIGN_KEYDIR}/DB.crt \
${D}${datadir}/efitools/efi/UnLock-signed.efi; then
bbfatal "Failed to verify UnLock-signed.efi"
fi

install -m 0600 ${D}${datadir}/efitools/efi/UnLock-signed.efi ${DEPLOYDIR}
install -m 0600 ${WORKDIR}/unlock.conf ${DEPLOYDIR}
}
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