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feat: Make TPM state persistent #595

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Merged
merged 1 commit into from
Oct 1, 2024
Merged

feat: Make TPM state persistent #595

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34 changes: 16 additions & 18 deletions src/boot.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -89,32 +89,30 @@ esac

if [[ "$TPM" == [Yy1]* ]]; then

rm -rf /run/shm/tpm
rm -f /var/run/tpm.pid
mkdir -p /run/shm/tpm
chmod 755 /run/shm/tpm

if ! swtpm socket -t -d --tpmstate dir=/run/shm/tpm --ctrl type=unixio,path=/run/swtpm-sock --pid file=/var/run/tpm.pid --tpm2; then
error "Failed to start TPM emulator, reason: $?" && exit 19
fi
if ! swtpm socket -t -d --tpmstate "backend-uri=file://$STORAGE/${BOOT_MODE,,}.tpm" --ctrl type=unixio,path=/run/swtpm-sock --pid file=/var/run/tpm.pid --tpm2; then
error "Failed to start TPM emulator, reason: $?"
else

for (( i = 1; i < 20; i++ )); do
for (( i = 1; i < 20; i++ )); do

[ -S "/run/swtpm-sock" ] && break
[ -S "/run/swtpm-sock" ] && break

if (( i % 10 == 0 )); then
echo "Waiting for TPM emulator to become available..."
fi
if (( i % 10 == 0 )); then
echo "Waiting for TPM emulator to become available..."
fi

sleep 0.1
sleep 0.1

done
done

if [ ! -S "/run/swtpm-sock" ]; then
error "TPM socket not found? Disabling TPM module..."
else
BOOT_OPTS+=" -chardev socket,id=chrtpm,path=/run/swtpm-sock"
BOOT_OPTS+=" -tpmdev emulator,id=tpm0,chardev=chrtpm -device tpm-tis,tpmdev=tpm0"
if [ ! -S "/run/swtpm-sock" ]; then
error "TPM socket not found? Disabling TPM module..."
else
BOOT_OPTS+=" -chardev socket,id=chrtpm,path=/run/swtpm-sock"
BOOT_OPTS+=" -tpmdev emulator,id=tpm0,chardev=chrtpm -device tpm-tis,tpmdev=tpm0"
fi
fi

fi
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