| #!/usr/bin/env python3 |
| # |
| # SPDX-License-Identifier: GPL-2.0-or-later |
| """ |
| s390x Secure IPL functional test. |
| |
| Validates s390x secure boot by preparing a signed guest image, booting with |
| secure-boot enabled, and verifying cryptographic validation results. |
| """ |
| |
| from subprocess import check_call, DEVNULL |
| |
| from qemu_test import QemuSystemTest, Asset, get_qemu_img |
| from qemu_test import exec_command_and_wait_for_pattern, exec_command |
| from qemu_test import wait_for_console_pattern, skipBigDataTest |
| |
| class S390xSecureIpl(QemuSystemTest): |
| """Test s390x Secure IPL (secure boot) functionality.""" |
| ASSET_F40_QCOW2 = Asset( |
| ('https://archives.fedoraproject.org/pub/archive/' |
| 'fedora-secondary/releases/40/Server/s390x/images/' |
| 'Fedora-Server-KVM-40-1.14.s390x.qcow2'), |
| '091c232a7301be14e19c76ce9a0c1cbd2be2c4157884a731e1fc4f89e7455a5f') |
| |
| def __init__(self, *args, **kwargs): |
| super().__init__(*args, **kwargs) |
| self.root_password = None |
| self.qcow2_path = None |
| self.cert_path = None |
| self.prompt = None |
| |
| def _create_certificate(self, vm): |
| """Generate x509 certificate""" |
| exec_command_and_wait_for_pattern(self, |
| 'openssl version', 'OpenSSL 3.2.1 30', |
| vm=vm) |
| exec_command_and_wait_for_pattern(self, |
| 'openssl req -new -x509 -newkey rsa:2048 ' |
| '-keyout mykey.pem -outform PEM -out mycert.pem ' |
| '-days 36500 -subj "/CN=My Name/" -nodes -verbose', |
| 'Writing private key to \'mykey.pem\'', vm=vm) |
| |
| def _sign_binaries(self, vm): |
| """Sign stage3 binary and kernel""" |
| # Install kernel-devel (needed for sign-file) |
| exec_command_and_wait_for_pattern(self, |
| 'sudo dnf install kernel-devel-$(uname -r) -y', |
| 'Complete!', vm=vm) |
| wait_for_console_pattern(self, self.prompt, vm=vm) |
| exec_command_and_wait_for_pattern(self, |
| 'ls /usr/src/kernels/$(uname -r)/scripts/', |
| 'sign-file', vm=vm) |
| |
| # Sign stage3 binary and kernel |
| exec_command(self, '/usr/src/kernels/$(uname -r)/scripts/sign-file ' |
| 'sha256 mykey.pem mycert.pem /lib/s390-tools/stage3.bin', |
| vm=vm) |
| wait_for_console_pattern(self, self.prompt, vm=vm) |
| exec_command(self, '/usr/src/kernels/$(uname -r)/scripts/sign-file ' |
| 'sha256 mykey.pem mycert.pem /boot/vmlinuz-$(uname -r)', |
| vm=vm) |
| wait_for_console_pattern(self, self.prompt, vm=vm) |
| |
| def _run_zipl_secure(self, vm): |
| """Run zipl to prepare for secure boot""" |
| exec_command_and_wait_for_pattern(self, 'zipl --secure 1 -VV', 'Done.', |
| vm=vm) |
| |
| def _extract_certificate(self, vm): |
| """Extract certificate from VM to host filesystem""" |
| out = exec_command_and_wait_for_pattern(self, 'cat mycert.pem', |
| '-----END CERTIFICATE-----', |
| vm=vm) |
| # strip first line to avoid console echo artifacts |
| cert = "\n".join(out.decode("utf-8").splitlines()[1:]) |
| self.log.info("%s", cert) |
| |
| self.cert_path = self.scratch_file("mycert.pem") |
| |
| with open(self.cert_path, 'w', encoding="utf-8") as file_object: |
| file_object.write(cert) |
| |
| def setup_s390x_secure_ipl(self): |
| """ |
| Prepare a secure boot-enabled guest image. |
| |
| Boots a temporary VM to generate a certificate, sign boot components |
| (stage3 and kernel), run zipl, and extract the certificate to host. |
| """ |
| self.require_netdev('user') |
| |
| temp_vm = self.get_vm(name='sipl_setup') |
| temp_vm.set_machine('s390-ccw-virtio') |
| |
| asset_path = self.ASSET_F40_QCOW2.fetch() |
| self.qcow2_path = self.scratch_file('f40.qcow2') |
| qemu_img = get_qemu_img(self) |
| check_call([qemu_img, 'create', '-f', 'qcow2', '-b', asset_path, |
| '-F', 'qcow2', self.qcow2_path], stdout=DEVNULL, stderr=DEVNULL) |
| |
| temp_vm.set_console() |
| temp_vm.add_args('-nographic', |
| '-accel', 'kvm', |
| '-m', '1024', |
| '-drive', |
| f'id=drive0,if=none,format=qcow2,file={self.qcow2_path}', |
| '-device', 'virtio-blk-ccw,drive=drive0,bootindex=1') |
| temp_vm.launch() |
| |
| # Initial root account setup (Fedora first boot screen) |
| self.root_password = 'fedora40password' |
| wait_for_console_pattern(self, 'Please make a selection from the above', |
| vm=temp_vm) |
| exec_command_and_wait_for_pattern(self, '4', 'Password:', vm=temp_vm) |
| exec_command_and_wait_for_pattern(self, self.root_password, |
| 'Password (confirm):', vm=temp_vm) |
| exec_command_and_wait_for_pattern(self, self.root_password, |
| 'Please make a selection from the above', |
| vm=temp_vm) |
| |
| # Login as root |
| self.prompt = '[root@localhost ~]#' |
| exec_command_and_wait_for_pattern(self, 'c', 'localhost login:', vm=temp_vm) |
| exec_command_and_wait_for_pattern(self, 'root', 'Password:', vm=temp_vm) |
| exec_command_and_wait_for_pattern(self, self.root_password, self.prompt, |
| vm=temp_vm) |
| |
| self._create_certificate(temp_vm) |
| self._sign_binaries(temp_vm) |
| self._run_zipl_secure(temp_vm) |
| self._extract_certificate(temp_vm) |
| |
| # Shutdown temp vm |
| temp_vm.shutdown() |
| |
| @skipBigDataTest() |
| def test_s390x_secure_ipl(self): |
| """ |
| Verify secure boot validation during s390x guest boot. |
| |
| Expects two "Verified component" messages and confirms |
| /sys/firmware/ipl/secure reports secure boot is active. |
| """ |
| self.require_accelerator('kvm') |
| self.setup_s390x_secure_ipl() |
| |
| self.set_machine('s390-ccw-virtio') |
| |
| self.vm.set_console() |
| self.vm.add_args('-nographic', |
| '-machine', 's390-ccw-virtio,secure-boot=on,' |
| f'boot-certs.0.path={self.cert_path}', |
| '-accel', 'kvm', |
| '-m', '1024', |
| '-drive', |
| f'id=drive1,if=none,format=qcow2,file={self.qcow2_path}', |
| '-device', 'virtio-blk-ccw,drive=drive1,bootindex=1') |
| self.vm.launch() |
| |
| # Expect two verified components |
| verified_output = "Verified component" |
| wait_for_console_pattern(self, verified_output) |
| wait_for_console_pattern(self, verified_output) |
| |
| # Login and verify the vm is booted using secure boot |
| wait_for_console_pattern(self, 'localhost login:') |
| exec_command_and_wait_for_pattern(self, 'root', 'Password:') |
| exec_command_and_wait_for_pattern(self, self.root_password, self.prompt) |
| exec_command_and_wait_for_pattern(self, 'cat /sys/firmware/ipl/secure', '1') |
| |
| if __name__ == '__main__': |
| QemuSystemTest.main() |
