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meta-security/meta-integrity/classes/kernel-modsign.bbclass
Jose Quaresma c1c80cf0c0 meta-integrity: kernel-modsign: prevents splitting out debug symbols
Starting with [1] kernel modules symbols is being slipped in OE-core
and this breaks the kernel modules sign, so disable it.

[1] https://git.openembedded.org/openembedded-core/commit/?id=e09a8fa931fe617afc05bd5e00dca5dd3fe386e8

Signed-off-by: Jose Quaresma <jose.quaresma@foundries.io>
Signed-off-by: Armin Kuster <akuster808@gmail.com>
2022-07-05 19:26:50 -04:00

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# No default! Either this or MODSIGN_PRIVKEY/MODSIGN_X509 have to be
# set explicitly in a local.conf before activating kernel-modsign.
# To use the insecure (because public) example keys, use
# MODSIGN_KEY_DIR = "${INTEGRITY_BASE}/data/debug-keys"
MODSIGN_KEY_DIR ??= "MODSIGN_KEY_DIR_NOT_SET"
# Private key for modules signing. The default is okay when
# using the example key directory.
MODSIGN_PRIVKEY ?= "${MODSIGN_KEY_DIR}/privkey_modsign.pem"
# Public part of certificates used for modules signing.
# The default is okay when using the example key directory.
MODSIGN_X509 ?= "${MODSIGN_KEY_DIR}/x509_modsign.crt"
# If this class is enabled, disable stripping signatures from modules
# as well disable the debug symbols split
INHIBIT_PACKAGE_STRIP = "1"
INHIBIT_PACKAGE_DEBUG_SPLIT = "1"
kernel_do_configure:prepend() {
if [ -f "${MODSIGN_PRIVKEY}" -a -f "${MODSIGN_X509}" ]; then
cat "${MODSIGN_PRIVKEY}" "${MODSIGN_X509}" \
> "${B}/modsign_key.pem"
else
bberror "Either modsign key or certificate are invalid"
fi
}
do_shared_workdir:append() {
cp modsign_key.pem $kerneldir/
}