[PATCH v2 5/9] test/py: efi_capsule: add image authentication test
AKASHI Takahiro
takahiro.akashi at linaro.org
Tue Jul 27 11:10:50 CEST 2021
Add a couple of test cases against capsule image authentication
for capsule-on-disk, where only a signed capsule file with the verified
signature will be applied to the system.
Due to the difficulty of embedding a public key (esl file) in U-Boot
binary during pytest setup time, all the keys/certificates are pre-created.
Signed-off-by: AKASHI Takahiro <takahiro.akashi at linaro.org>
---
test/py/tests/test_efi_capsule/SIGNER.crt | 19 ++
test/py/tests/test_efi_capsule/SIGNER.esl | Bin 0 -> 829 bytes
test/py/tests/test_efi_capsule/SIGNER.key | 28 +++
test/py/tests/test_efi_capsule/SIGNER2.crt | 19 ++
test/py/tests/test_efi_capsule/SIGNER2.key | 28 +++
.../py/tests/test_efi_capsule/capsule_defs.py | 5 +
test/py/tests/test_efi_capsule/conftest.py | 35 ++-
.../test_capsule_firmware_signed.py | 228 ++++++++++++++++++
8 files changed, 359 insertions(+), 3 deletions(-)
create mode 100644 test/py/tests/test_efi_capsule/SIGNER.crt
create mode 100644 test/py/tests/test_efi_capsule/SIGNER.esl
create mode 100644 test/py/tests/test_efi_capsule/SIGNER.key
create mode 100644 test/py/tests/test_efi_capsule/SIGNER2.crt
create mode 100644 test/py/tests/test_efi_capsule/SIGNER2.key
create mode 100644 test/py/tests/test_efi_capsule/test_capsule_firmware_signed.py
diff --git a/test/py/tests/test_efi_capsule/SIGNER.crt b/test/py/tests/test_efi_capsule/SIGNER.crt
new file mode 100644
index 000000000000..f63ec01d9996
--- /dev/null
+++ b/test/py/tests/test_efi_capsule/SIGNER.crt
@@ -0,0 +1,19 @@
+-----BEGIN CERTIFICATE-----
+MIIDDTCCAfWgAwIBAgIUD96z+lSbhDFN76YoIY2LnDBt1yQwDQYJKoZIhvcNAQEL
+BQAwFjEUMBIGA1UEAwwLVEVTVF9TSUdORVIwHhcNMjEwNzI2MDg1MzE1WhcNMjIw
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+141ZGfBYmSQ6EReOwNeK7A0=
+-----END CERTIFICATE-----
diff --git a/test/py/tests/test_efi_capsule/SIGNER.esl b/test/py/tests/test_efi_capsule/SIGNER.esl
new file mode 100644
index 0000000000000000000000000000000000000000..a54536e243d274b74985abbecfe234d14013ef33
GIT binary patch
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HcmV?d00001
diff --git a/test/py/tests/test_efi_capsule/SIGNER.key b/test/py/tests/test_efi_capsule/SIGNER.key
new file mode 100644
index 000000000000..9952647ed74a
--- /dev/null
+++ b/test/py/tests/test_efi_capsule/SIGNER.key
@@ -0,0 +1,28 @@
+-----BEGIN PRIVATE KEY-----
+MIIEuwIBADANBgkqhkiG9w0BAQEFAASCBKUwggShAgEAAoIBAQDAbms19vItMuC9
+JaCWCTrZbxeXlm+LW8e88HouXCqEs0GIsYp0tdDq1cu8vJhC8lzpRjjrDOdPb876
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+q5/HYNIw5zJyapPksgr4
+-----END PRIVATE KEY-----
diff --git a/test/py/tests/test_efi_capsule/SIGNER2.crt b/test/py/tests/test_efi_capsule/SIGNER2.crt
new file mode 100644
index 000000000000..8889a3ed930a
--- /dev/null
+++ b/test/py/tests/test_efi_capsule/SIGNER2.crt
@@ -0,0 +1,19 @@
+-----BEGIN CERTIFICATE-----
+MIIDDTCCAfWgAwIBAgIUfmZcui7VkJEe9jx25Epo6jJ6l+owDQYJKoZIhvcNAQEL
+BQAwFjEUMBIGA1UEAwwLVEVTVF9TSUdORVIwHhcNMjEwNzI2MDg1MzE1WhcNMjIw
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+V+Msrg5o7ag2SN2AHg5/1/4=
+-----END CERTIFICATE-----
diff --git a/test/py/tests/test_efi_capsule/SIGNER2.key b/test/py/tests/test_efi_capsule/SIGNER2.key
new file mode 100644
index 000000000000..ee467fd9f7a6
--- /dev/null
+++ b/test/py/tests/test_efi_capsule/SIGNER2.key
@@ -0,0 +1,28 @@
+-----BEGIN PRIVATE KEY-----
+MIIEvgIBADANBgkqhkiG9w0BAQEFAASCBKgwggSkAgEAAoIBAQDaM10xShlcdNdt
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+v2k9P0qWItuE4S7I4hEsovwS
+-----END PRIVATE KEY-----
diff --git a/test/py/tests/test_efi_capsule/capsule_defs.py b/test/py/tests/test_efi_capsule/capsule_defs.py
index 4fd6353c2040..aa9bf5eee3aa 100644
--- a/test/py/tests/test_efi_capsule/capsule_defs.py
+++ b/test/py/tests/test_efi_capsule/capsule_defs.py
@@ -3,3 +3,8 @@
# Directories
CAPSULE_DATA_DIR = '/EFI/CapsuleTestData'
CAPSULE_INSTALL_DIR = '/EFI/UpdateCapsule'
+
+# v1.5.1 or earlier of efitools has a bug in sha256 calculation, and
+# you need build a newer version on your own.
+# The path must terminate with '/'.
+EFITOOLS_PATH = ''
diff --git a/test/py/tests/test_efi_capsule/conftest.py b/test/py/tests/test_efi_capsule/conftest.py
index 6ad5608cd71c..35cfa5513703 100644
--- a/test/py/tests/test_efi_capsule/conftest.py
+++ b/test/py/tests/test_efi_capsule/conftest.py
@@ -10,13 +10,13 @@ import pytest
from capsule_defs import *
#
-# Fixture for UEFI secure boot test
+# Fixture for UEFI capsule test
#
-
@pytest.fixture(scope='session')
def efi_capsule_data(request, u_boot_config):
- """Set up a file system to be used in UEFI capsule test.
+ """Set up a file system to be used in UEFI capsule and
+ authentication test.
Args:
request: Pytest request object.
@@ -40,6 +40,22 @@ def efi_capsule_data(request, u_boot_config):
check_call('mkdir -p %s' % data_dir, shell=True)
check_call('mkdir -p %s' % install_dir, shell=True)
+ capsule_auth_enabled = u_boot_config.buildconfig.get(
+ 'config_efi_capsule_authenticate')
+ # NOTE:
+ # private keys (SIGNER?.key) dn certificates (SIGNER?.crt)
+ # in this pytest directory are created this way:
+ # Create private key (SIGNER.key) and certificate (SIGNER.crt)
+ # check_call('cd %s; openssl req -x509 -sha256 -newkey rsa:2048 -subj /CN=TEST_SIGNER/ -keyout SIGNER.key -out SIGNER.crt -nodes -days 365'
+ # % data_dir, shell=True)
+ # check_call('cd %s; %scert-to-efi-sig-list SIGNER.crt SIGNER.esl'
+ # % (data_dir, EFITOOLS_PATH), shell=True)
+
+ # Create *malicious* private key (SIGNER2.key) and certificate
+ # (SIGNER2.crt)
+ # check_call('cd %s; openssl req -x509 -sha256 -newkey rsa:2048 -subj /CN=TEST_SIGNER/ -keyout SIGNER2.key -out SIGNER2.crt -nodes -days 365'
+ # % data_dir, shell=True)
+
# Create capsule files
# two regions: one for u-boot.bin and the other for u-boot.env
check_call('cd %s; echo -n u-boot:Old > u-boot.bin.old; echo -n u-boot:New > u-boot.bin.new; echo -n u-boot-env:Old -> u-boot.env.old; echo -n u-boot-env:New > u-boot.env.new' % data_dir,
@@ -56,6 +72,19 @@ def efi_capsule_data(request, u_boot_config):
check_call('cd %s; %s/tools/mkeficapsule --raw u-boot.bin.new --index 1 Test02' %
(data_dir, u_boot_config.build_dir),
shell=True)
+ if capsule_auth_enabled:
+ # copy keys/certificates
+ check_call('cp %s/test/py/tests/test_efi_capsule/SIGNER*.* %s' %
+ (u_boot_config.source_dir, data_dir),
+ shell=True)
+ # firmware signed with proper key
+ check_call('cd %s; %s/tools/mkeficapsule --raw u-boot.bin.new --index 1 --monotonic-count 1 --private-key SIGNER.key --certificate SIGNER.crt Test03' %
+ (data_dir, u_boot_config.build_dir),
+ shell=True)
+ # firmware signed with *mal* key
+ check_call('cd %s; %s/tools/mkeficapsule --raw u-boot.bin.new --index 1 --monotonic-count 1 --private-key SIGNER2.key --certificate SIGNER2.crt Test04' %
+ (data_dir, u_boot_config.build_dir),
+ shell=True)
# Create a disk image with EFI system partition
check_call('virt-make-fs --partition=gpt --size=+1M --type=vfat %s %s' %
diff --git a/test/py/tests/test_efi_capsule/test_capsule_firmware_signed.py b/test/py/tests/test_efi_capsule/test_capsule_firmware_signed.py
new file mode 100644
index 000000000000..8fe93ef424ac
--- /dev/null
+++ b/test/py/tests/test_efi_capsule/test_capsule_firmware_signed.py
@@ -0,0 +1,228 @@
+# SPDX-License-Identifier: GPL-2.0+
+# Copyright (c) 2021, Linaro Limited
+# Author: AKASHI Takahiro <takahiro.akashi at linaro.org>
+#
+# U-Boot UEFI: Firmware Update (Signed capsule) Test
+
+"""
+This test verifies capsule-on-disk firmware update
+with signed capsule files
+"""
+
+from subprocess import check_call, check_output, CalledProcessError
+import pytest
+from capsule_defs import *
+
+ at pytest.mark.boardspec('sandbox')
+ at pytest.mark.buildconfigspec('efi_capsule_firmware_raw')
+ at pytest.mark.buildconfigspec('efi_capsule_authenticate')
+ at pytest.mark.buildconfigspec('dfu')
+ at pytest.mark.buildconfigspec('dfu_sf')
+ at pytest.mark.buildconfigspec('cmd_efidebug')
+ at pytest.mark.buildconfigspec('cmd_fat')
+ at pytest.mark.buildconfigspec('cmd_memory')
+ at pytest.mark.buildconfigspec('cmd_nvedit_efi')
+ at pytest.mark.buildconfigspec('cmd_sf')
+ at pytest.mark.slow
+class TestEfiCapsuleFirmwareSigned(object):
+ def test_efi_capsule_auth1(
+ self, u_boot_config, u_boot_console, efi_capsule_data):
+ """
+ Test Case 1 - Update U-Boot on SPI Flash, raw image format
+ 0x100000-0x150000: U-Boot binary (but dummy)
+
+ If the capsule is properly signed, the authentication
+ should pass and the firmware be updated.
+ """
+ disk_img = efi_capsule_data
+ with u_boot_console.log.section('Test Case 1-a, before reboot'):
+ output = u_boot_console.run_command_list([
+ 'host bind 0 %s' % disk_img,
+ 'efidebug boot add -b 1 TEST host 0:1 /helloworld.efi',
+ 'efidebug boot order 1',
+ 'env set -e -nv -bs -rt OsIndications =0x0000000000000004',
+ 'env set dfu_alt_info "sf 0:0=u-boot-bin raw 0x100000 0x50000;u-boot-env raw 0x150000 0x200000"',
+ 'env save'])
+
+ # initialize content
+ output = u_boot_console.run_command_list([
+ 'sf probe 0:0',
+ 'fatload host 0:1 4000000 %s/u-boot.bin.old' % CAPSULE_DATA_DIR,
+ 'sf write 4000000 100000 10',
+ 'sf read 5000000 100000 10',
+ 'md.b 5000000 10'])
+ assert 'Old' in ''.join(output)
+
+ # place a capsule file
+ output = u_boot_console.run_command_list([
+ 'fatload host 0:1 4000000 %s/Test03' % CAPSULE_DATA_DIR,
+ 'fatwrite host 0:1 4000000 %s/Test03 $filesize' % CAPSULE_INSTALL_DIR,
+ 'fatls host 0:1 %s' % CAPSULE_INSTALL_DIR])
+ assert 'Test03' in ''.join(output)
+
+ # reboot
+ u_boot_console.restart_uboot()
+
+ capsule_early = u_boot_config.buildconfig.get(
+ 'config_efi_capsule_on_disk_early')
+ with u_boot_console.log.section('Test Case 1-b, after reboot'):
+ if not capsule_early:
+ # make sure that dfu_alt_info exists even persistent variables
+ # are not available.
+ output = u_boot_console.run_command_list([
+ 'env set dfu_alt_info "sf 0:0=u-boot-bin raw 0x100000 0x50000;u-boot-env raw 0x150000 0x200000"',
+ 'host bind 0 %s' % disk_img,
+ 'fatls host 0:1 %s' % CAPSULE_INSTALL_DIR])
+ assert 'Test03' in ''.join(output)
+
+ # need to run uefi command to initiate capsule handling
+ output = u_boot_console.run_command(
+ 'env print -e Capsule0000')
+
+ output = u_boot_console.run_command_list([
+ 'host bind 0 %s' % disk_img,
+ 'fatls host 0:1 %s' % CAPSULE_INSTALL_DIR])
+ assert 'Test03' not in ''.join(output)
+
+ output = u_boot_console.run_command_list([
+ 'sf probe 0:0',
+ 'sf read 4000000 100000 10',
+ 'md.b 4000000 10'])
+ assert 'u-boot:New' in ''.join(output)
+
+ def test_efi_capsule_auth2(
+ self, u_boot_config, u_boot_console, efi_capsule_data):
+ """
+ Test Case 2 - Update U-Boot on SPI Flash, raw image format
+ 0x100000-0x150000: U-Boot binary (but dummy)
+
+ If the capsule is signed but with an invalid key,
+ the authentication should fail and the firmware
+ not be updated.
+ """
+ disk_img = efi_capsule_data
+ with u_boot_console.log.section('Test Case 2-a, before reboot'):
+ output = u_boot_console.run_command_list([
+ 'host bind 0 %s' % disk_img,
+ 'efidebug boot add -b 1 TEST host 0:1 /helloworld.efi',
+ 'efidebug boot order 1',
+ 'env set -e -nv -bs -rt OsIndications =0x0000000000000004',
+ 'env set dfu_alt_info "sf 0:0=u-boot-bin raw 0x100000 0x50000;u-boot-env raw 0x150000 0x200000"',
+ 'env save'])
+
+ # initialize content
+ output = u_boot_console.run_command_list([
+ 'sf probe 0:0',
+ 'fatload host 0:1 4000000 %s/u-boot.bin.old' % CAPSULE_DATA_DIR,
+ 'sf write 4000000 100000 10',
+ 'sf read 5000000 100000 10',
+ 'md.b 5000000 10'])
+ assert 'Old' in ''.join(output)
+
+ # place a capsule file
+ output = u_boot_console.run_command_list([
+ 'fatload host 0:1 4000000 %s/Test04' % CAPSULE_DATA_DIR,
+ 'fatwrite host 0:1 4000000 %s/Test04 $filesize' % CAPSULE_INSTALL_DIR,
+ 'fatls host 0:1 %s' % CAPSULE_INSTALL_DIR])
+ assert 'Test04' in ''.join(output)
+
+ # reboot
+ u_boot_console.restart_uboot()
+
+ capsule_early = u_boot_config.buildconfig.get(
+ 'config_efi_capsule_on_disk_early')
+ with u_boot_console.log.section('Test Case 2-b, after reboot'):
+ if not capsule_early:
+ # make sure that dfu_alt_info exists even persistent variables
+ # are not available.
+ output = u_boot_console.run_command_list([
+ 'env set dfu_alt_info "sf 0:0=u-boot-bin raw 0x100000 0x50000;u-boot-env raw 0x150000 0x200000"',
+ 'host bind 0 %s' % disk_img,
+ 'fatls host 0:1 %s' % CAPSULE_INSTALL_DIR])
+ assert 'Test04' in ''.join(output)
+
+ # need to run uefi command to initiate capsule handling
+ output = u_boot_console.run_command(
+ 'env print -e Capsule0000')
+
+ # deleted any way
+ output = u_boot_console.run_command_list([
+ 'host bind 0 %s' % disk_img,
+ 'fatls host 0:1 %s' % CAPSULE_INSTALL_DIR])
+ assert 'Test04' not in ''.join(output)
+
+ # TODO: check CapsuleStatus in CapsuleXXXX
+
+ output = u_boot_console.run_command_list([
+ 'sf probe 0:0',
+ 'sf read 4000000 100000 10',
+ 'md.b 4000000 10'])
+ assert 'u-boot:Old' in ''.join(output)
+
+ def test_efi_capsule_auth3(
+ self, u_boot_config, u_boot_console, efi_capsule_data):
+ """
+ Test Case 3 - Update U-Boot on SPI Flash, raw image format
+ 0x100000-0x150000: U-Boot binary (but dummy)
+
+ If the capsule is not signed, the authentication
+ should fail and the firmware not be updated.
+ """
+ disk_img = efi_capsule_data
+ with u_boot_console.log.section('Test Case 3-a, before reboot'):
+ output = u_boot_console.run_command_list([
+ 'host bind 0 %s' % disk_img,
+ 'efidebug boot add -b 1 TEST host 0:1 /helloworld.efi',
+ 'efidebug boot order 1',
+ 'env set -e -nv -bs -rt OsIndications =0x0000000000000004',
+ 'env set dfu_alt_info "sf 0:0=u-boot-bin raw 0x100000 0x50000;u-boot-env raw 0x150000 0x200000"',
+ 'env save'])
+
+ # initialize content
+ output = u_boot_console.run_command_list([
+ 'sf probe 0:0',
+ 'fatload host 0:1 4000000 %s/u-boot.bin.old' % CAPSULE_DATA_DIR,
+ 'sf write 4000000 100000 10',
+ 'sf read 5000000 100000 10',
+ 'md.b 5000000 10'])
+ assert 'Old' in ''.join(output)
+
+ # place a capsule file
+ output = u_boot_console.run_command_list([
+ 'fatload host 0:1 4000000 %s/Test02' % CAPSULE_DATA_DIR,
+ 'fatwrite host 0:1 4000000 %s/Test02 $filesize' % CAPSULE_INSTALL_DIR,
+ 'fatls host 0:1 %s' % CAPSULE_INSTALL_DIR])
+ assert 'Test02' in ''.join(output)
+
+ # reboot
+ u_boot_console.restart_uboot()
+
+ capsule_early = u_boot_config.buildconfig.get(
+ 'config_efi_capsule_on_disk_early')
+ with u_boot_console.log.section('Test Case 3-b, after reboot'):
+ if not capsule_early:
+ # make sure that dfu_alt_info exists even persistent variables
+ # are not available.
+ output = u_boot_console.run_command_list([
+ 'env set dfu_alt_info "sf 0:0=u-boot-bin raw 0x100000 0x50000;u-boot-env raw 0x150000 0x200000"',
+ 'host bind 0 %s' % disk_img,
+ 'fatls host 0:1 %s' % CAPSULE_INSTALL_DIR])
+ assert 'Test02' in ''.join(output)
+
+ # need to run uefi command to initiate capsule handling
+ output = u_boot_console.run_command(
+ 'env print -e Capsule0000')
+
+ # deleted any way
+ output = u_boot_console.run_command_list([
+ 'host bind 0 %s' % disk_img,
+ 'fatls host 0:1 %s' % CAPSULE_INSTALL_DIR])
+ assert 'Test02' not in ''.join(output)
+
+ # TODO: check CapsuleStatus in CapsuleXXXX
+
+ output = u_boot_console.run_command_list([
+ 'sf probe 0:0',
+ 'sf read 4000000 100000 10',
+ 'md.b 4000000 10'])
+ assert 'u-boot:Old' in ''.join(output)
--
2.31.0
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