qubes-linux-kernel/mod-sign.sh
Marek Marczykowski-Górecki 8aca753f93
(re-)sign all the modules after processing debuginfo
Extracting debuginfo strips away modules signatures (which would be
invalid anyway, as the module file is modified). Include the code for
signing modules again, taken from Fedora's kernel.spec.

Fixes QubesOS/qubes-issues#5497
2019-12-05 23:13:29 +01:00

38 lines
1.1 KiB
Bash
Executable File

#! /bin/bash
# The modules_sign target checks for corresponding .o files for every .ko that
# is signed. This doesn't work for package builds which re-use the same build
# directory for every flavour, and the .config may change between flavours.
# So instead of using this script to just sign lib/modules/$KernelVer/extra,
# sign all .ko in the buildroot.
# This essentially duplicates the 'modules_sign' Kbuild target and runs the
# same commands for those modules.
MODSECKEY=$1
MODPUBKEY=$2
moddir=$3
modules=`find $moddir -type f -name '*.ko'`
NPROC=`nproc`
[ -z "$NPROC" ] && NPROC=1
# NB: this loop runs 2000+ iterations. Try to be fast.
echo "$modules" | xargs -r -n16 -P $NPROC sh -c "
for mod; do
./scripts/sign-file sha256 $MODSECKEY $MODPUBKEY \$mod
rm -f \$mod.sig \$mod.dig
done
" DUMMYARG0 # xargs appends ARG1 ARG2..., which go into $mod in for loop.
RANDOMMOD=$(echo "$modules" | sort -R | head -n 1)
if [ "~Module signature appended~" != "$(tail -c 28 $RANDOMMOD)" ]; then
echo "*****************************"
echo "*** Modules are unsigned! ***"
echo "*****************************"
exit 1
fi
exit 0