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#!/bin/bash
CERT="lldb_codesign"
function error() {
echo error: "$@"
exit 1
}
function cleanup {
# Remove generated files
rm -f "$TMPDIR/$CERT.tmpl" "$TMPDIR/$CERT.cer" "$TMPDIR/$CERT.key" > /dev/null 2>&1
}
trap cleanup EXIT
# Check if the certificate is already present in the system keychain
security find-certificate -Z -p -c "$CERT" /Library/Keychains/System.keychain > /dev/null 2>&1
if [ $? -eq 0 ]; then
echo Certificate has already been generated and installed
exit 0
fi
# Create the certificate template
cat <<EOF >$TMPDIR/$CERT.tmpl
[ req ]
default_bits = 2048 # RSA key size
encrypt_key = no # Protect private key
default_md = sha512 # MD to use
prompt = no # Prompt for DN
distinguished_name = codesign_dn # DN template
[ codesign_dn ]
commonName = "$CERT"
[ codesign_reqext ]
keyUsage = critical,digitalSignature
extendedKeyUsage = critical,codeSigning
EOF
echo Generating and installing lldb_codesign certificate
# Generate a new certificate
openssl req -new -newkey rsa:2048 -x509 -days 3650 -nodes -config "$TMPDIR/$CERT.tmpl" -extensions codesign_reqext -batch -out "$TMPDIR/$CERT.cer" -keyout "$TMPDIR/$CERT.key" > /dev/null 2>&1
[ $? -eq 0 ] || error Something went wrong when generating the certificate
# Install the certificate in the system keychain
sudo security add-trusted-cert -d -r trustRoot -p codeSign -k /Library/Keychains/System.keychain "$TMPDIR/$CERT.cer" > /dev/null 2>&1
[ $? -eq 0 ] || error Something went wrong when installing the certificate
# Install the key for the certificate in the system keychain
sudo security import "$TMPDIR/$CERT.key" -A -k /Library/Keychains/System.keychain > /dev/null 2>&1
[ $? -eq 0 ] || error Something went wrong when installing the key
# Kill task_for_pid access control daemon
sudo pkill -f /usr/libexec/taskgated > /dev/null 2>&1
# Exit indicating the certificate is now generated and installed
exit 0
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