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test: dm: Add test for ECDSA UCLASS support

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This test verifies that ECDSA_UCLASS is implemented, and that
ecdsa_verify() works as expected. The definition of "expected" is
"does not find a device, and returns -ENODEV".

The lack of a hardware-independent ECDSA implementation prevents us
from having one in the sandbox, for now.

Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
This commit is contained in:
Alexandru Gagniuc 2021-07-29 11:47:19 -05:00 committed by Patrice Chotard
parent 61416fe9df
commit 46a738a4ec
3 changed files with 41 additions and 0 deletions
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2
configs/sandbox_defconfig
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@ -299,3 +299,5 @@ CONFIG_TEST_FDTDEC=y
CONFIG_UNIT_TEST=y
CONFIG_UT_TIME=y
CONFIG_UT_DM=y
CONFIG_ECDSA=y
CONFIG_ECDSA_VERIFY=y

1
test/dm/Makefile
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@ -36,6 +36,7 @@ obj-$(CONFIG_DEVRES) += devres.o
obj-$(CONFIG_DMA) += dma.o
obj-$(CONFIG_VIDEO_MIPI_DSI) += dsi_host.o
obj-$(CONFIG_DM_DSA) += dsa.o
obj-$(CONFIG_ECDSA_VERIFY) += ecdsa.o
obj-$(CONFIG_DM_ETH) += eth.o
ifneq ($(CONFIG_EFI_PARTITION),)
obj-$(CONFIG_FASTBOOT_FLASH_MMC) += fastboot.o

38
test/dm/ecdsa.c Normal file
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@ -0,0 +1,38 @@
// SPDX-License-Identifier: GPL-2.0-or-later
#include <crypto/ecdsa-uclass.h>
#include <dm.h>
#include <dm/test.h>
#include <test/ut.h>
#include <u-boot/ecdsa.h>
/*
* Basic test of the ECDSA uclass and ecdsa_verify()
*
* ECDSA implementations in u-boot are hardware-dependent. Until we have a
* software implementation that can be compiled into the sandbox, all we can
* test is the uclass support.
*
* The uclass_get() test is redundant since ecdsa_verify() would also fail. We
* run both functions in order to isolate the cause more clearly. i.e. is
* ecdsa_verify() failing because the UCLASS is absent/broken?
*/
static int dm_test_ecdsa_verify(struct unit_test_state *uts)
{
struct uclass *ucp;
struct checksum_algo algo = {
.checksum_len = 256,
};
struct image_sign_info info = {
.checksum = &algo,
};
ut_assertok(uclass_get(UCLASS_ECDSA, &ucp));
ut_assertnonnull(ucp);
ut_asserteq(-ENODEV, ecdsa_verify(&info, NULL, 0, NULL, 0));
return 0;
}
DM_TEST(dm_test_ecdsa_verify, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);