OpenCore-Config-iMac/EFI/OC/Tools/CreateVault/sign.command

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2020-02-05 18:48:42 +01:00
#!/bin/sh
abort() {
echo "Fatal error: ${1}!"
exit 1
}
if [ ! -x /usr/bin/dirname ] || [ ! -x /bin/chmod ] || [ ! -x /bin/mkdir ] || [ ! -x /usr/bin/openssl ] || [ ! -x /bin/rm ] || [ ! -x /usr/bin/strings ] || [ ! -x /usr/bin/grep ] || [ ! -x /usr/bin/cut ] || [ ! -x /bin/dd ] ; then
abort "Unix environment is broken!"
fi
cd "$(/usr/bin/dirname "$0")" || abort "Failed to enter working directory!"
OCPath="$1"
if [ "$OCPath" = "" ]; then
OCPath=../../EFI/OC
fi
KeyPath="${OCPath}/Keys"
OCBin="${OCPath}/OpenCore.efi"
RootCA="${KeyPath}/ca.pem"
PrivKey="${KeyPath}/privatekey.cer"
PubKey="${KeyPath}/vault.pub"
if [ ! -d "${OCPath}" ]; then
abort "Path ${OCPath} is missing!"
fi
if [ ! -f "${OCBin}" ]; then
abort "OpenCore.efi is missing!"
fi
if [ ! -x ./RsaTool ] || [ ! -x ./create_vault.sh ]; then
if [ -f ./RsaTool ]; then
/bin/chmod a+x ./RsaTool || abort "Failed to set permission for RsaTool"
else
abort "Failed to find RsaTool!"
fi
if [ -f ./create_vault.sh ]; then
/bin/chmod a+x ./create_vault.sh || abort "Failed to set permission for create_vault.sh"
else
abort "Failed to find create_vault.sh!"
fi
fi
if [ ! -d "${KeyPath}" ]; then
/bin/mkdir -p "${KeyPath}" || abort "Failed to create path ${KeyPath}"
fi
./create_vault.sh "${OCPath}" || abort "create_vault.sh returns errors!"
if [ ! -f "${RootCA}" ]; then
/usr/bin/openssl genrsa -out "${RootCA}" 2048 || abort "Failed to generate CA"
if [ -f "${PrivKey}" ]; then
echo "WARNING: Private key exists without CA"
fi
fi
/bin/rm -fP "${PrivKey}" || abort "Failed to remove ${PrivKey}"
echo "Issuing a new private key..."
/usr/bin/openssl req -new -x509 -key "${RootCA}" -out "${PrivKey}" -days 1825 -subj "/C=WO/L=127.0.0.1/O=Acidanthera/OU=Acidanthera OpenCore/CN=Greetings from Acidanthera and WWHC" || abort "Failed to issue private key!"
/bin/rm -fP "${PubKey}" || abort "Failed to remove ${PubKey}"
echo "Getting public key based off private key..."
./RsaTool -cert "${PrivKey}" > "${PubKey}" || abort "Failed to get public key"
echo "Signing ${OCBin}..."
./RsaTool -sign "${OCPath}/vault.plist" "${OCPath}/vault.sig" "${PubKey}" || abort "Failed to patch ${PubKey}"
echo "Bin-patching ${OCBin}..."
off=$(($(/usr/bin/strings -a -t d "${OCBin}" | /usr/bin/grep "=BEGIN OC VAULT=" | /usr/bin/cut -f1 -d' ') + 16))
if [ "${off}" -le 16 ]; then
abort "${OCBin} is borked"
fi
/bin/dd of="${OCBin}" if="${PubKey}" bs=1 seek="${off}" count=528 conv=notrunc || abort "Failed to bin-patch ${OCBin}"
echo "All done!"
exit 0