| /* 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 "2secdata_struct.h" |
| #include "2sysincludes.h" |
| #include "test_common.h" |
| #include "vboot_test.h" |
| |
| static uint8_t workbuf[VB2_FIRMWARE_WORKBUF_RECOMMENDED_SIZE] |
| __attribute__((aligned(VB2_WORKBUF_ALIGN))); |
| static struct vb2_context *ctx; |
| static struct vb2_shared_data *sd; |
| static struct vb2_secdata_kernel_v0 *sec02; |
| static struct vb2_secdata_kernel_v1 *sec10; |
| |
| static void reset_common_data(void) |
| { |
| memset(workbuf, 0xaa, sizeof(workbuf)); |
| TEST_SUCC(vb2api_init(workbuf, sizeof(workbuf), &ctx), |
| "vb2api_init failed"); |
| |
| sd = vb2_get_sd(ctx); |
| |
| sec02 = (struct vb2_secdata_kernel_v0 *)ctx->secdata_kernel; |
| sec10 = (struct vb2_secdata_kernel_v1 *)ctx->secdata_kernel; |
| } |
| |
| static void test_init(struct vb2_shared_data *s, int init, const char *why) |
| { |
| if (init) |
| TEST_NEQ(s->status & VB2_SD_STATUS_SECDATA_KERNEL_INIT, 0, why); |
| else |
| TEST_EQ(s->status & VB2_SD_STATUS_SECDATA_KERNEL_INIT, 0, why); |
| } |
| |
| static void test_changed(struct vb2_context *c, int changed, const char *why) |
| { |
| if (changed) |
| TEST_NEQ(c->flags & VB2_CONTEXT_SECDATA_KERNEL_CHANGED, 0, why); |
| else |
| TEST_EQ(c->flags & VB2_CONTEXT_SECDATA_KERNEL_CHANGED, 0, why); |
| |
| c->flags &= ~VB2_CONTEXT_SECDATA_KERNEL_CHANGED; |
| } |
| |
| /* |
| * Version-independent tests |
| */ |
| static void secdata_kernel_test(void) |
| { |
| uint8_t size; |
| |
| reset_common_data(); |
| |
| /* Blank data is invalid */ |
| size = VB2_SECDATA_KERNEL_MIN_SIZE; |
| memset(&ctx->secdata_kernel, 0xa6, size); |
| TEST_EQ(vb2api_secdata_kernel_check(ctx, &size), |
| VB2_ERROR_SECDATA_KERNEL_VERSION, "Check blank bad version"); |
| TEST_EQ(vb2_secdata_kernel_init(ctx), |
| VB2_ERROR_SECDATA_KERNEL_VERSION, "Init blank bad version"); |
| test_init(sd, 0, "Init set SD status"); |
| |
| /* Ensure zeroed buffers are invalid */ |
| size = VB2_SECDATA_KERNEL_MIN_SIZE; |
| memset(&ctx->secdata_kernel, 0, size); |
| TEST_EQ(vb2api_secdata_kernel_check(ctx, &size), |
| VB2_ERROR_SECDATA_KERNEL_VERSION, "Check zero bad version"); |
| TEST_EQ(vb2_secdata_kernel_init(ctx), |
| VB2_ERROR_SECDATA_KERNEL_VERSION, "Init zero incomplete"); |
| test_init(sd, 0, "Init set SD status"); |
| |
| /* Read data less than minimum size */ |
| size = VB2_SECDATA_KERNEL_MIN_SIZE - 1; |
| TEST_EQ(vb2api_secdata_kernel_check(ctx, &size), |
| VB2_ERROR_SECDATA_KERNEL_INCOMPLETE, "Check incomplete"); |
| TEST_EQ(size, VB2_SECDATA_KERNEL_MIN_SIZE, "Return minimum size"); |
| } |
| |
| static void secdata_kernel_test_v10(void) |
| { |
| uint8_t size; |
| |
| reset_common_data(); |
| |
| /* Create good data */ |
| size = VB2_SECDATA_KERNEL_SIZE_V10; |
| TEST_EQ(vb2api_secdata_kernel_create(ctx), |
| VB2_SECDATA_KERNEL_SIZE_V10, "Create v1.0"); |
| TEST_SUCC(vb2api_secdata_kernel_check(ctx, &size), "Check created CRC"); |
| TEST_SUCC(vb2_secdata_kernel_init(ctx), "Init created CRC"); |
| test_init(sd, 1, "Init set SD status"); |
| test_changed(ctx, 1, "Create changes data"); |
| |
| /* Check excessive data */ |
| size = VB2_SECDATA_KERNEL_SIZE_V10 + 1; |
| TEST_SUCC(vb2api_secdata_kernel_check(ctx, &size), |
| "Check large v1.0 data"); |
| TEST_EQ(size, VB2_SECDATA_KERNEL_SIZE_V10, "Return expected size"); |
| |
| /* Check incomplete data */ |
| size = VB2_SECDATA_KERNEL_SIZE_V10 - 1; |
| vb2api_secdata_kernel_create(ctx); |
| TEST_EQ(vb2api_secdata_kernel_check(ctx, &size), |
| VB2_ERROR_SECDATA_KERNEL_INCOMPLETE, "Check incomplete"); |
| TEST_EQ(size, VB2_SECDATA_KERNEL_SIZE_V10, "Return expected size"); |
| |
| reset_common_data(); |
| |
| /* Bad version */ |
| size = VB2_SECDATA_KERNEL_SIZE_V10; |
| vb2api_secdata_kernel_create(ctx); |
| sec10->struct_version -= 1; |
| TEST_EQ(vb2api_secdata_kernel_check(ctx, &size), |
| VB2_ERROR_SECDATA_KERNEL_VERSION, "Check invalid version"); |
| TEST_EQ(vb2_secdata_kernel_init(ctx), |
| VB2_ERROR_SECDATA_KERNEL_VERSION, "Init invalid version"); |
| test_init(sd, 0, "Init set SD status"); |
| |
| /* Higher minor version */ |
| vb2api_secdata_kernel_create(ctx); |
| sec10->struct_version += 1; |
| TEST_SUCC(vb2api_secdata_kernel_check(ctx, &size), "Check v1.1 data"); |
| TEST_SUCC(vb2_secdata_kernel_init(ctx), "Init v1.1 data"); |
| test_init(sd, 1, "Init set SD status"); |
| |
| reset_common_data(); |
| |
| /* Higher major version */ |
| vb2api_secdata_kernel_create(ctx); |
| sec10->struct_version += 0x10; |
| TEST_EQ(vb2api_secdata_kernel_check(ctx, &size), |
| VB2_ERROR_SECDATA_KERNEL_VERSION, "Check v2.0 data"); |
| TEST_EQ(vb2_secdata_kernel_init(ctx), |
| VB2_ERROR_SECDATA_KERNEL_VERSION, "Init v2.0 data"); |
| test_init(sd, 0, "Init set SD status"); |
| |
| reset_common_data(); |
| |
| /* Corrupt data */ |
| size = VB2_SECDATA_KERNEL_SIZE_V10; |
| vb2api_secdata_kernel_create(ctx); |
| sec10->kernel_versions++; |
| TEST_EQ(vb2api_secdata_kernel_check(ctx, &size), |
| VB2_ERROR_SECDATA_KERNEL_CRC, "Check invalid CRC"); |
| TEST_EQ(vb2_secdata_kernel_init(ctx), |
| VB2_ERROR_SECDATA_KERNEL_CRC, "Init invalid CRC"); |
| test_init(sd, 0, "Init set SD status"); |
| } |
| |
| static void secdata_kernel_test_v02(void) |
| { |
| uint8_t size; |
| |
| reset_common_data(); |
| |
| /* Create good data */ |
| size = VB2_SECDATA_KERNEL_SIZE_V02; |
| TEST_EQ(vb2api_secdata_kernel_create_v0(ctx), size, "Create v0.2"); |
| TEST_SUCC(vb2api_secdata_kernel_check(ctx, &size), "Check v0.2"); |
| TEST_SUCC(vb2_secdata_kernel_init(ctx), "Init created CRC"); |
| test_init(sd, 1, "Init set SD status"); |
| |
| /* Check excessive data */ |
| size = VB2_SECDATA_KERNEL_SIZE_V02 + 1; |
| TEST_SUCC(vb2api_secdata_kernel_check(ctx, &size), |
| "Check large v0.2 data"); |
| TEST_EQ(size, VB2_SECDATA_KERNEL_SIZE_V02, "Return expected size"); |
| |
| /* Check incomplete data */ |
| size = VB2_SECDATA_KERNEL_SIZE_V02 - 1; |
| TEST_EQ(vb2api_secdata_kernel_check(ctx, &size), |
| VB2_ERROR_SECDATA_KERNEL_INCOMPLETE, "Check small v0.2 data"); |
| TEST_EQ(size, VB2_SECDATA_KERNEL_SIZE_V02, "Return expected size"); |
| reset_common_data(); |
| |
| /* Corrupt data */ |
| vb2api_secdata_kernel_create_v0(ctx); |
| sec02->kernel_versions++; |
| TEST_EQ(vb2api_secdata_kernel_check(ctx, &size), |
| VB2_ERROR_SECDATA_KERNEL_CRC, "Check invalid CRC"); |
| TEST_EQ(vb2_secdata_kernel_init(ctx), |
| VB2_ERROR_SECDATA_KERNEL_CRC, "Init invalid CRC"); |
| } |
| |
| static void secdata_kernel_access_test_v10(void) |
| { |
| uint32_t v = 1; |
| const uint8_t *p; |
| uint8_t ec_hash[VB2_SHA256_DIGEST_SIZE]; |
| |
| reset_common_data(); |
| |
| /* Read/write versions */ |
| vb2api_secdata_kernel_create(ctx); |
| vb2_secdata_kernel_init(ctx); |
| ctx->flags = 0; |
| v = vb2_secdata_kernel_get(ctx, VB2_SECDATA_KERNEL_VERSIONS); |
| TEST_EQ(v, 0, "Versions created 0"); |
| test_changed(ctx, 0, "Get doesn't change data"); |
| vb2_secdata_kernel_set(ctx, VB2_SECDATA_KERNEL_VERSIONS, 0x123456ff); |
| test_changed(ctx, 1, "Set changes data"); |
| vb2_secdata_kernel_set(ctx, VB2_SECDATA_KERNEL_VERSIONS, 0x123456ff); |
| test_changed(ctx, 0, "Set again doesn't change data"); |
| v = vb2_secdata_kernel_get(ctx, VB2_SECDATA_KERNEL_VERSIONS); |
| TEST_EQ(v, 0x123456ff, "Versions changed"); |
| |
| /* Read/write flags */ |
| vb2api_secdata_kernel_create(ctx); |
| vb2_secdata_kernel_init(ctx); |
| ctx->flags = 0; |
| v = vb2_secdata_kernel_get(ctx, VB2_SECDATA_KERNEL_FLAGS); |
| TEST_EQ(v, 0, "Flags created 0"); |
| test_changed(ctx, 0, "Get doesn't change data"); |
| vb2_secdata_kernel_set(ctx, VB2_SECDATA_KERNEL_FLAGS, 0x12); |
| test_changed(ctx, 1, "Set changes data"); |
| vb2_secdata_kernel_set(ctx, VB2_SECDATA_KERNEL_FLAGS, 0x12); |
| test_changed(ctx, 0, "Set again doesn't change data"); |
| v = vb2_secdata_kernel_get(ctx, VB2_SECDATA_KERNEL_FLAGS); |
| TEST_EQ(v, 0x12, "Flags changed"); |
| TEST_ABORT(vb2_secdata_kernel_set(ctx, VB2_SECDATA_KERNEL_FLAGS, 0x100), |
| "Bad flags"); |
| |
| /* Invalid field fails */ |
| TEST_ABORT(vb2_secdata_kernel_get(ctx, -1), "Get invalid"); |
| TEST_ABORT(vb2_secdata_kernel_set(ctx, -1, 456), "Set invalid"); |
| test_changed(ctx, 0, "Set invalid field doesn't change data"); |
| |
| /* Read/write uninitialized data fails */ |
| sd->status &= ~VB2_SD_STATUS_SECDATA_KERNEL_INIT; |
| TEST_ABORT(vb2_secdata_kernel_get(ctx, VB2_SECDATA_KERNEL_VERSIONS), |
| "Get uninitialized"); |
| test_changed(ctx, 0, "Get uninitialized doesn't change data"); |
| TEST_ABORT(vb2_secdata_kernel_set(ctx, VB2_SECDATA_KERNEL_VERSIONS, |
| 0x123456ff), |
| "Set uninitialized"); |
| test_changed(ctx, 0, "Set uninitialized doesn't change data"); |
| |
| /* Test EC hash set */ |
| vb2api_secdata_kernel_create(ctx); |
| vb2_secdata_kernel_init(ctx); |
| memset(ec_hash, 0xaa, sizeof(ec_hash)); |
| vb2_secdata_kernel_set_ec_hash(ctx, ec_hash); |
| TEST_EQ(memcmp(ec_hash, sec10->ec_hash, sizeof(ec_hash)), 0, |
| "Check EC hash"); |
| test_changed(ctx, 1, "Set EC hash changes data"); |
| |
| sec10->struct_version = VB2_SECDATA_KERNEL_VERSION_V02; |
| TEST_ABORT(vb2_secdata_kernel_set_ec_hash(ctx, ec_hash), |
| "Can't set EC hash for v0.2"); |
| test_changed(ctx, 0, "Failing to set EC hash doesn't change data"); |
| sec10->struct_version = VB2_SECDATA_KERNEL_VERSION_V10; |
| |
| sd->status &= ~VB2_SD_STATUS_SECDATA_KERNEL_INIT; |
| TEST_ABORT(vb2_secdata_kernel_set_ec_hash(ctx, ec_hash), |
| "Can't set EC hash before init"); |
| sd->status |= VB2_SD_STATUS_SECDATA_KERNEL_INIT; |
| |
| /* Test EC hash get */ |
| p = vb2_secdata_kernel_get_ec_hash(ctx); |
| TEST_PTR_EQ(p, sec10->ec_hash, "Get EC hash returns pointer"); |
| test_changed(ctx, 0, "Get EC hash doesn't change data"); |
| |
| sec10->struct_version = VB2_SECDATA_KERNEL_VERSION_V02; |
| TEST_PTR_EQ(vb2_secdata_kernel_get_ec_hash(ctx), NULL, |
| "Can't get EC hash for v0.2"); |
| sec10->struct_version = VB2_SECDATA_KERNEL_VERSION_V10; |
| |
| sd->status &= ~VB2_SD_STATUS_SECDATA_KERNEL_INIT; |
| TEST_ABORT(vb2_secdata_kernel_get_ec_hash(ctx), |
| "Can't get EC hash before init"); |
| sd->status |= VB2_SD_STATUS_SECDATA_KERNEL_INIT; |
| } |
| |
| static void secdata_kernel_access_test_v02(void) |
| { |
| uint32_t v = 1; |
| reset_common_data(); |
| |
| /* Read/write versions */ |
| vb2api_secdata_kernel_create_v0(ctx); |
| vb2_secdata_kernel_init(ctx); |
| ctx->flags = 0; |
| v = vb2_secdata_kernel_get(ctx, VB2_SECDATA_KERNEL_VERSIONS); |
| TEST_EQ(v, 0, "Versions created 0"); |
| test_changed(ctx, 0, "Get doesn't change data"); |
| vb2_secdata_kernel_set(ctx, VB2_SECDATA_KERNEL_VERSIONS, 0x123456ff); |
| test_changed(ctx, 1, "Set changes data"); |
| vb2_secdata_kernel_set(ctx, VB2_SECDATA_KERNEL_VERSIONS, 0x123456ff); |
| test_changed(ctx, 0, "Set again doesn't change data"); |
| v = vb2_secdata_kernel_get(ctx, VB2_SECDATA_KERNEL_VERSIONS); |
| TEST_EQ(v, 0x123456ff, "Versions changed"); |
| |
| /* Read/write flags: should be no-op for v0 */ |
| TEST_EQ(vb2_secdata_kernel_get(ctx, VB2_SECDATA_KERNEL_FLAGS), 0, |
| "Get flags"); |
| vb2_secdata_kernel_set(ctx, VB2_SECDATA_KERNEL_FLAGS, 0x1); |
| TEST_EQ(vb2_secdata_kernel_get(ctx, VB2_SECDATA_KERNEL_FLAGS), 0, |
| "Get flags again"); |
| |
| /* Invalid field fails */ |
| TEST_ABORT(vb2_secdata_kernel_get(ctx, -1), "Get invalid"); |
| TEST_ABORT(vb2_secdata_kernel_set(ctx, -1, 456), "Set invalid"); |
| test_changed(ctx, 0, "Set invalid field doesn't change data"); |
| |
| /* Read/write uninitialized data fails */ |
| sd->status &= ~VB2_SD_STATUS_SECDATA_KERNEL_INIT; |
| TEST_ABORT(vb2_secdata_kernel_get(ctx, VB2_SECDATA_KERNEL_VERSIONS), |
| "Get uninitialized"); |
| test_changed(ctx, 0, "Get uninitialized doesn't change data"); |
| TEST_ABORT(vb2_secdata_kernel_set(ctx, VB2_SECDATA_KERNEL_VERSIONS, |
| 0x123456ff), |
| "Set uninitialized"); |
| test_changed(ctx, 0, "Set uninitialized doesn't change data"); |
| } |
| |
| int main(int argc, char* argv[]) |
| { |
| secdata_kernel_test(); |
| secdata_kernel_test_v10(); |
| secdata_kernel_test_v02(); |
| secdata_kernel_access_test_v10(); |
| secdata_kernel_access_test_v02(); |
| |
| return gTestSuccess ? 0 : 255; |
| } |