diff options
Diffstat (limited to 'tests/vb2_secdata_firmware_tests.c')
| -rw-r--r-- | tests/vb2_secdata_firmware_tests.c | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/tests/vb2_secdata_firmware_tests.c b/tests/vb2_secdata_firmware_tests.c new file mode 100644 index 00000000..3564cfa5 --- /dev/null +++ b/tests/vb2_secdata_firmware_tests.c @@ -0,0 +1,150 @@ +/* Copyright (c) 2014 The Chromium OS Authors. All rights reserved. + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + * + * Tests for firmware secure storage library. + */ + +#include "2api.h" +#include "2common.h" +#include "2crc8.h" +#include "2misc.h" +#include "2secdata.h" +#include "2sysincludes.h" +#include "test_common.h" +#include "vboot_common.h" + +static void test_changed(struct vb2_context *c, int changed, const char *why) +{ + if (changed) + TEST_NEQ(c->flags & VB2_CONTEXT_SECDATA_FIRMWARE_CHANGED, + 0, why); + else + TEST_EQ(c->flags & VB2_CONTEXT_SECDATA_FIRMWARE_CHANGED, + 0, why); + + c->flags &= ~VB2_CONTEXT_SECDATA_FIRMWARE_CHANGED; +}; + +static void secdata_firmware_test(void) +{ + uint8_t workbuf[VB2_FIRMWARE_WORKBUF_RECOMMENDED_SIZE] + __attribute__ ((aligned (VB2_WORKBUF_ALIGN))); + struct vb2_context c = { + .flags = 0, + .workbuf = workbuf, + .workbuf_size = sizeof(workbuf), + }; + struct vb2_secdata_firmware *sec = + (struct vb2_secdata_firmware *)c.secdata_firmware; + struct vb2_shared_data *sd = vb2_get_sd(&c); + uint32_t v = 1; + + /* Check size constant */ + TEST_EQ(VB2_SECDATA_FIRMWARE_SIZE, sizeof(struct vb2_secdata_firmware), + "Struct size constant"); + + /* Blank data is invalid */ + memset(c.secdata_firmware, 0xa6, sizeof(c.secdata_firmware)); + TEST_EQ(vb2api_secdata_firmware_check(&c), + VB2_ERROR_SECDATA_FIRMWARE_CRC, "Check blank CRC"); + TEST_EQ(vb2_secdata_firmware_init(&c), + VB2_ERROR_SECDATA_FIRMWARE_CRC, "Init blank CRC"); + + /* Ensure zeroed buffers are invalid (coreboot relies on this) */ + memset(c.secdata_firmware, 0, sizeof(c.secdata_firmware)); + TEST_EQ(vb2_secdata_firmware_init(&c), + VB2_ERROR_SECDATA_FIRMWARE_VERSION, + "Zeroed buffer (invalid version)"); + + /* Try with bad version */ + TEST_SUCC(vb2api_secdata_firmware_create(&c), "Create"); + sec->struct_version -= 1; + sec->crc8 = vb2_crc8(sec, offsetof(struct vb2_secdata_firmware, crc8)); + TEST_EQ(vb2api_secdata_firmware_check(&c), + VB2_ERROR_SECDATA_FIRMWARE_VERSION, "Check invalid version"); + TEST_EQ(vb2_secdata_firmware_init(&c), + VB2_ERROR_SECDATA_FIRMWARE_VERSION, "Init invalid version"); + + /* Create good data */ + TEST_SUCC(vb2api_secdata_firmware_create(&c), "Create"); + TEST_SUCC(vb2api_secdata_firmware_check(&c), "Check created CRC"); + TEST_SUCC(vb2_secdata_firmware_init(&c), "Init created CRC"); + TEST_NEQ(sd->status & VB2_SD_STATUS_SECDATA_FIRMWARE_INIT, 0, + "Init set SD status"); + sd->status &= ~VB2_SD_STATUS_SECDATA_FIRMWARE_INIT; + test_changed(&c, 1, "Create changes data"); + + /* Now corrupt it */ + c.secdata_firmware[2]++; + TEST_EQ(vb2api_secdata_firmware_check(&c), + VB2_ERROR_SECDATA_FIRMWARE_CRC, "Check invalid CRC"); + TEST_EQ(vb2_secdata_firmware_init(&c), + VB2_ERROR_SECDATA_FIRMWARE_CRC, "Init invalid CRC"); + + /* Read/write flags */ + vb2api_secdata_firmware_create(&c); + vb2_secdata_firmware_init(&c); + c.flags = 0; + TEST_SUCC(vb2_secdata_firmware_get(&c, VB2_SECDATA_FIRMWARE_FLAGS, &v), + "Get flags"); + TEST_EQ(v, 0, "Flags created 0"); + test_changed(&c, 0, "Get doesn't change data"); + TEST_SUCC(vb2_secdata_firmware_set(&c, VB2_SECDATA_FIRMWARE_FLAGS, + 0x12), + "Set flags"); + test_changed(&c, 1, "Set changes data"); + TEST_SUCC(vb2_secdata_firmware_set(&c, VB2_SECDATA_FIRMWARE_FLAGS, + 0x12), + "Set flags 2"); + test_changed(&c, 0, "Set again doesn't change data"); + TEST_SUCC(vb2_secdata_firmware_get(&c, VB2_SECDATA_FIRMWARE_FLAGS, &v), + "Get flags 2"); + TEST_EQ(v, 0x12, "Flags changed"); + TEST_EQ(vb2_secdata_firmware_set(&c, VB2_SECDATA_FIRMWARE_FLAGS, 0x100), + VB2_ERROR_SECDATA_FIRMWARE_SET_FLAGS, "Bad flags"); + + /* Read/write versions */ + TEST_SUCC(vb2_secdata_firmware_get(&c, VB2_SECDATA_FIRMWARE_VERSIONS, + &v), + "Get versions"); + TEST_EQ(v, 0, "Versions created 0"); + test_changed(&c, 0, "Get doesn't change data"); + TEST_SUCC(vb2_secdata_firmware_set(&c, VB2_SECDATA_FIRMWARE_VERSIONS, + 0x123456ff), + "Set versions"); + test_changed(&c, 1, "Set changes data"); + TEST_SUCC(vb2_secdata_firmware_set(&c, VB2_SECDATA_FIRMWARE_VERSIONS, + 0x123456ff), + "Set versions 2"); + test_changed(&c, 0, "Set again doesn't change data"); + TEST_SUCC(vb2_secdata_firmware_get(&c, VB2_SECDATA_FIRMWARE_VERSIONS, &v), + "Get versions 2"); + TEST_EQ(v, 0x123456ff, "Versions changed"); + + /* Invalid field fails */ + TEST_EQ(vb2_secdata_firmware_get(&c, -1, &v), + VB2_ERROR_SECDATA_FIRMWARE_GET_PARAM, "Get invalid"); + TEST_EQ(vb2_secdata_firmware_set(&c, -1, 456), + VB2_ERROR_SECDATA_FIRMWARE_SET_PARAM, "Set invalid"); + test_changed(&c, 0, "Set invalid field doesn't change data"); + + /* Read/write uninitialized data fails */ + sd->status &= ~VB2_SD_STATUS_SECDATA_FIRMWARE_INIT; + TEST_EQ(vb2_secdata_firmware_get(&c, VB2_SECDATA_FIRMWARE_VERSIONS, &v), + VB2_ERROR_SECDATA_FIRMWARE_GET_UNINITIALIZED, + "Get uninitialized"); + test_changed(&c, 0, "Get uninitialized doesn't change data"); + TEST_EQ(vb2_secdata_firmware_set(&c, VB2_SECDATA_FIRMWARE_VERSIONS, + 0x123456ff), + VB2_ERROR_SECDATA_FIRMWARE_SET_UNINITIALIZED, + "Set uninitialized"); + test_changed(&c, 0, "Set uninitialized doesn't change data"); +} + +int main(int argc, char* argv[]) +{ + secdata_firmware_test(); + + return gTestSuccess ? 0 : 255; +} |