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/* Copyright 2015 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 kernel 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_SECDATAK_CHANGED, 0, why);
else
TEST_EQ(c->flags & VB2_CONTEXT_SECDATAK_CHANGED, 0, why);
c->flags &= ~VB2_CONTEXT_SECDATAK_CHANGED;
};
static void secdatak_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_secdatak *sec = (struct vb2_secdatak *)c.secdatak;
struct vb2_shared_data *sd = vb2_get_sd(&c);
uint32_t v = 1;
/* Check size constant */
TEST_EQ(VB2_SECDATAK_SIZE, sizeof(struct vb2_secdatak),
"Struct size constant");
/* Blank data is invalid */
memset(c.secdatak, 0xa6, sizeof(c.secdatak));
TEST_EQ(vb2api_secdatak_check(&c),
VB2_ERROR_SECDATAK_CRC, "Check blank CRC");
TEST_EQ(vb2_secdatak_init(&c),
VB2_ERROR_SECDATAK_CRC, "Init blank CRC");
/* Ensure zeroed buffers are invalid */
memset(c.secdatak, 0, sizeof(c.secdatak));
TEST_EQ(vb2_secdatak_init(&c), VB2_ERROR_SECDATAK_VERSION,
"Zeroed buffer (invalid version)");
/* Try with bad version */
TEST_SUCC(vb2api_secdatak_create(&c), "Create");
sec->struct_version -= 1;
sec->crc8 = vb2_crc8(sec, offsetof(struct vb2_secdatak, crc8));
TEST_EQ(vb2api_secdatak_check(&c),
VB2_ERROR_SECDATAK_VERSION, "Check invalid version");
TEST_EQ(vb2_secdatak_init(&c),
VB2_ERROR_SECDATAK_VERSION, "Init invalid version");
/* Create good data */
TEST_SUCC(vb2api_secdatak_create(&c), "Create");
TEST_SUCC(vb2api_secdatak_check(&c), "Check created CRC");
TEST_SUCC(vb2_secdatak_init(&c), "Init created CRC");
TEST_NEQ(sd->status & VB2_SD_STATUS_SECDATAK_INIT, 0,
"Init set SD status");
sd->status &= ~VB2_SD_STATUS_SECDATAK_INIT;
test_changed(&c, 1, "Create changes data");
/* Now corrupt it */
c.secdatak[2]++;
TEST_EQ(vb2api_secdatak_check(&c),
VB2_ERROR_SECDATAK_CRC, "Check invalid CRC");
TEST_EQ(vb2_secdatak_init(&c),
VB2_ERROR_SECDATAK_CRC, "Init invalid CRC");
/* Make sure UID is checked */
vb2api_secdatak_create(&c);
sec->uid++;
sec->crc8 = vb2_crc8(sec, offsetof(struct vb2_secdatak, crc8));
TEST_EQ(vb2_secdatak_init(&c), VB2_ERROR_SECDATAK_UID,
"Init invalid struct UID");
/* Read/write versions */
vb2api_secdatak_create(&c);
vb2_secdatak_init(&c);
c.flags = 0;
TEST_SUCC(vb2_secdatak_get(&c, VB2_SECDATAK_VERSIONS, &v),
"Get versions");
TEST_EQ(v, 0, "Versions created 0");
test_changed(&c, 0, "Get doesn't change data");
TEST_SUCC(vb2_secdatak_set(&c, VB2_SECDATAK_VERSIONS, 0x123456ff),
"Set versions");
test_changed(&c, 1, "Set changes data");
TEST_SUCC(vb2_secdatak_set(&c, VB2_SECDATAK_VERSIONS, 0x123456ff),
"Set versions 2");
test_changed(&c, 0, "Set again doesn't change data");
TEST_SUCC(vb2_secdatak_get(&c, VB2_SECDATAK_VERSIONS, &v),
"Get versions 2");
TEST_EQ(v, 0x123456ff, "Versions changed");
/* Invalid field fails */
TEST_EQ(vb2_secdatak_get(&c, -1, &v),
VB2_ERROR_SECDATAK_GET_PARAM, "Get invalid");
TEST_EQ(vb2_secdatak_set(&c, -1, 456),
VB2_ERROR_SECDATAK_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_SECDATAK_INIT;
TEST_EQ(vb2_secdatak_get(&c, VB2_SECDATAK_VERSIONS, &v),
VB2_ERROR_SECDATAK_GET_UNINITIALIZED, "Get uninitialized");
test_changed(&c, 0, "Get uninitialized doesn't change data");
TEST_EQ(vb2_secdatak_set(&c, VB2_SECDATAK_VERSIONS, 0x123456ff),
VB2_ERROR_SECDATAK_SET_UNINITIALIZED, "Set uninitialized");
test_changed(&c, 0, "Set uninitialized doesn't change data");
}
int main(int argc, char* argv[])
{
secdatak_test();
return gTestSuccess ? 0 : 255;
}
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