[PATCH v3 09/11] test: capsule: Remove public key embed logic from capsule update test

[Sughosh Ganu]

The embedding of the public key EFI Signature List(ESL) file into the
platform's DTB is now done at the time of u-boot build. Remove this
logic from the capsule update test' configuration.

Include the public key for the sandbox and sandbox_flattree variant
as part of the build.

Signed-off-by: Sughosh Ganu <sughosh.ganu at linaro.org>
---
Changes since V2:
* New patch for removing the capsule key and ESL generation logic from
  the capsule test config file.

 configs/sandbox_defconfig                    |  1 +
 configs/sandbox_flattree_defconfig           |  1 +
 test/py/tests/test_efi_capsule/conftest.py   | 30 +++-----------------
 test/py/tests/test_efi_capsule/signature.dts | 10 -------
 4 files changed, 6 insertions(+), 36 deletions(-)
 delete mode 100644 test/py/tests/test_efi_capsule/signature.dts

diff --git a/configs/sandbox_defconfig b/configs/sandbox_defconfig
index 1ec44d5b33..d8a2386bb0 100644
--- a/configs/sandbox_defconfig
+++ b/configs/sandbox_defconfig
@@ -339,6 +339,7 @@ CONFIG_EFI_RUNTIME_UPDATE_CAPSULE=y
 CONFIG_EFI_CAPSULE_ON_DISK=y
 CONFIG_EFI_CAPSULE_FIRMWARE_RAW=y
 CONFIG_EFI_CAPSULE_AUTHENTICATE=y
+CONFIG_EFI_CAPSULE_ESL_FILE="/tmp/capsules/SIGNER.esl"
 CONFIG_EFI_SECURE_BOOT=y
 CONFIG_TEST_FDTDEC=y
 CONFIG_UNIT_TEST=y
diff --git a/configs/sandbox_flattree_defconfig b/configs/sandbox_flattree_defconfig
index e7657d40dc..8d60744771 100644
--- a/configs/sandbox_flattree_defconfig
+++ b/configs/sandbox_flattree_defconfig
@@ -226,6 +226,7 @@ CONFIG_EFI_RUNTIME_UPDATE_CAPSULE=y
 CONFIG_EFI_CAPSULE_ON_DISK=y
 CONFIG_EFI_CAPSULE_FIRMWARE_FIT=y
 CONFIG_EFI_CAPSULE_AUTHENTICATE=y
+CONFIG_EFI_CAPSULE_ESL_FILE="/tmp/capsules/SIGNER.esl"
 CONFIG_UNIT_TEST=y
 CONFIG_UT_TIME=y
 CONFIG_UT_DM=y
diff --git a/test/py/tests/test_efi_capsule/conftest.py b/test/py/tests/test_efi_capsule/conftest.py
index a337e62936..9b0f7e635d 100644
--- a/test/py/tests/test_efi_capsule/conftest.py
+++ b/test/py/tests/test_efi_capsule/conftest.py
@@ -25,42 +25,20 @@ def efi_capsule_data(request, u_boot_config):
     image_path = u_boot_config.persistent_data_dir + '/test_efi_capsule.img'
 
     try:
+        capsules_path_dir = '/tmp/capsules/'
         # Create a target device
         check_call('dd if=/dev/zero of=./spi.bin bs=1MiB count=16', shell=True)
 
         check_call('rm -rf %s' % mnt_point, shell=True)
         check_call('mkdir -p %s' % data_dir, shell=True)
         check_call('mkdir -p %s' % install_dir, shell=True)
+        check_call('cp %s/* %s ' % (capsules_path_dir, data_dir), shell=True)
 
         capsule_auth_enabled = u_boot_config.buildconfig.get(
                     'config_efi_capsule_authenticate')
         if capsule_auth_enabled:
-            # 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)
-
-            # Update dtb adding capsule certificate
-            check_call('cd %s; '
-                       'cp %s/test/py/tests/test_efi_capsule/signature.dts .'
-                       % (data_dir, u_boot_config.source_dir), shell=True)
-            check_call('cd %s; '
-                       'dtc -@ -I dts -O dtb -o signature.dtbo signature.dts; '
-                       'fdtoverlay -i %s/arch/sandbox/dts/test.dtb '
-                            '-o test_sig.dtb signature.dtbo'
-                       % (data_dir, u_boot_config.build_dir), 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)
+            check_call('cp %s/arch/sandbox/dts/test.dtb %s/test_sig.dtb' %
+                       (u_boot_config.build_dir, data_dir), shell=True)
 
         # Create capsule files
         # two regions: one for u-boot.bin and the other for u-boot.env
diff --git a/test/py/tests/test_efi_capsule/signature.dts b/test/py/tests/test_efi_capsule/signature.dts
deleted file mode 100644
index 078cfc76c9..0000000000
--- a/test/py/tests/test_efi_capsule/signature.dts
+++ /dev/null
@@ -1,10 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-
-/dts-v1/;
-/plugin/;
-
-&{/} {
-	signature {
-		capsule-key = /incbin/("SIGNER.esl");
-	};
-};
-- 
2.34.1