tests/vb2_firmware_tests.c - third_party/vboot_reference - Git at Google


            
            /* Copyright 2014 The ChromiumOS Authors

            
             * Use of this source code is governed by a BSD-style license that can be

            
             * found in the LICENSE file.

            
             *

            
             * Tests for firmware verification library

            
             */


            #include <stdio.h>


            #include "2api.h"

            
            #include "2common.h"

            
            #include "2misc.h"

            
            #include "2nvstorage.h"

            
            #include "2rsa.h"

            
            #include "2secdata.h"

            
            #include "2sysincludes.h"

            
            #include "common/tests.h"


            /* Common context for tests */

            
            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_gbb_header gbb;


            /* Mocked function data */


            static struct {

            
            	struct vb2_gbb_header h;

            
            	struct vb2_packed_key rootkey;

            
            	char rootkey_data[32];

            
            } mock_gbb;


            static struct {

            
            	/* Keyblock */

            
            	struct {

            
            		struct vb2_keyblock kb;

            
            		char data_key_data[16];

            
            		uint8_t kbdata[128];

            
            	} k;

            
            	/* Preamble follows keyblock */

            
            	struct {

            
            		struct vb2_fw_preamble pre;

            
            		uint8_t predata[128];

            
            	} p;


            } mock_vblock;


            static int mock_read_res_fail_on_call;

            
            static int mock_unpack_key_retval;

            
            static int mock_verify_keyblock_retval;

            
            static int mock_verify_preamble_retval;


            /* Type of test to reset for */

            
            enum reset_type {

            
            	FOR_KEYBLOCK,

            
            	FOR_PREAMBLE

            
            };


            static void reset_common_data(enum reset_type t)

            
            {

            
            	struct vb2_keyblock *kb = &mock_vblock.k.kb;

            
            	struct vb2_fw_preamble *pre = &mock_vblock.p.pre;


            	memset(workbuf, 0xaa, sizeof(workbuf));


            	TEST_SUCC(vb2api_init(workbuf, sizeof(workbuf), &ctx),

            
            		  "vb2api_init failed");


            	memset(&gbb, 0, sizeof(gbb));

            
            	sd = vb2_get_sd(ctx);


            	vb2_nv_init(ctx);


            	vb2api_secdata_firmware_create(ctx);

            
            	vb2_secdata_firmware_init(ctx);


            	vb2api_secdata_kernel_create(ctx);

            
            	vb2_secdata_kernel_init(ctx);


            	mock_read_res_fail_on_call = 0;

            
            	mock_unpack_key_retval = VB2_SUCCESS;

            
            	mock_verify_keyblock_retval = VB2_SUCCESS;

            
            	mock_verify_preamble_retval = VB2_SUCCESS;


            	/* Set up mock data for verifying keyblock */

            
            	sd->fw_version_secdata = 0x20002;

            
            	vb2_secdata_firmware_set(ctx, VB2_SECDATA_FIRMWARE_VERSIONS,

            
            				 sd->fw_version_secdata);


            	gbb.rootkey_offset = vb2_offset_of(&mock_gbb, &mock_gbb.rootkey);

            
            	gbb.rootkey_size = sizeof(mock_gbb.rootkey_data);

            
            	sd->last_fw_result = VB2_FW_RESULT_SUCCESS;


            	mock_gbb.rootkey.algorithm = 11;

            
            	mock_gbb.rootkey.key_offset =

            
            		vb2_offset_of(&mock_gbb.rootkey,

            
            			      &mock_gbb.rootkey_data);

            
            	mock_gbb.rootkey.key_size = sizeof(mock_gbb.rootkey_data);


            	kb->keyblock_size = sizeof(mock_vblock.k);

            
            	kb->data_key.algorithm = 7;

            
            	kb->data_key.key_version = 2;

            
            	kb->data_key.key_offset =

            
            		vb2_offset_of(&mock_vblock.k, &mock_vblock.k.data_key_data) -

            
            		vb2_offset_of(&mock_vblock.k, &kb->data_key);

            
            	kb->data_key.key_size = sizeof(mock_vblock.k.data_key_data);

            
            	strcpy(mock_vblock.k.data_key_data, "data key data!!");


            	pre->preamble_size = sizeof(mock_vblock.p);

            
            	pre->firmware_version = 2;


            	/* If verifying preamble, verify keyblock first to set up data key */

            
            	if (t == FOR_PREAMBLE)

            
            		vb2_load_fw_keyblock(ctx);

            
            };


            /* Mocked functions */

            
            struct vb2_gbb_header *vb2_get_gbb(struct vb2_context *c)

            
            {

            
            	return &gbb;

            
            }


            vb2_error_t vb2ex_read_resource(struct vb2_context *c,

            
            				enum vb2_resource_index index, uint32_t offset,

            
            				void *buf, uint32_t size)

            
            {

            
            	uint8_t *rptr;

            
            	uint32_t rsize;


            	if (--mock_read_res_fail_on_call == 0)

            
            		return VB2_ERROR_EX_READ_RESOURCE_INDEX;


            	switch(index) {

            
            	case VB2_RES_GBB:

            
            		rptr = (uint8_t *)&mock_gbb;

            
            		rsize = sizeof(mock_gbb);

            
            		break;

            
            	case VB2_RES_FW_VBLOCK:

            
            		rptr = (uint8_t *)&mock_vblock;

            
            		rsize = sizeof(mock_vblock);

            
            		break;

            
            	default:

            
            		return VB2_ERROR_EX_READ_RESOURCE_INDEX;

            
            	}


            	if (offset > rsize || offset + size > rsize)

            
            		return VB2_ERROR_EX_READ_RESOURCE_SIZE;


            	memcpy(buf, rptr + offset, size);

            
            	return VB2_SUCCESS;

            
            }


            vb2_error_t vb2_unpack_key_buffer(struct vb2_public_key *key,

            
            				  const uint8_t *buf, uint32_t size)

            
            {

            
            	key->arrsize = 0;

            
            	return mock_unpack_key_retval;

            
            }


            static struct vb2_public_key last_used_key;


            vb2_error_t vb2_verify_keyblock(struct vb2_keyblock *block, uint32_t size,

            
            				const struct vb2_public_key *key,

            
            				const struct vb2_workbuf *wb)

            
            {

            
            	memcpy(&last_used_key, key, sizeof(struct vb2_public_key));

            
            	return mock_verify_keyblock_retval;

            
            }


            vb2_error_t vb2_verify_fw_preamble(struct vb2_fw_preamble *preamble,

            
            				   uint32_t size,

            
            				   const struct vb2_public_key *key,

            
            				   const struct vb2_workbuf *wb)

            
            {

            
            	memcpy(&last_used_key, key, sizeof(struct vb2_public_key));

            
            	return mock_verify_preamble_retval;

            
            }


            /* Tests */


            static void verify_keyblock_tests(void)

            
            {

            
            	struct vb2_keyblock *kb = &mock_vblock.k.kb;

            
            	struct vb2_packed_key *k;

            
            	int expected_offset;


            	/* Test successful call */

            
            	reset_common_data(FOR_KEYBLOCK);

            
            	expected_offset = sd->workbuf_used;

            
            	TEST_SUCC(vb2_load_fw_keyblock(ctx), "keyblock verify");

            
            	TEST_EQ(sd->fw_version, 0x20000, "keyblock version");

            
            	TEST_EQ(sd->vblock_preamble_offset, sizeof(mock_vblock.k),

            
            		"preamble offset");

            
            	TEST_EQ(sd->data_key_offset, expected_offset,

            
            		"keyblock data key offset");

            
            	TEST_EQ(sd->workbuf_used,

            
            		vb2_wb_round_up(sd->data_key_offset +

            
            				sd->data_key_size),

            
            		"workbuf used");


            	/* Make sure data key was properly saved */

            
            	k = vb2_member_of(sd, sd->data_key_offset);

            
            	TEST_EQ(k->algorithm, 7, "data key algorithm");

            
            	TEST_EQ(k->key_version, 2, "data key version");

            
            	TEST_EQ(k->key_size, sizeof(mock_vblock.k.data_key_data),

            
            		"data key size");

            
            	TEST_EQ(memcmp(vb2_member_of(k, k->key_offset),

            
            		       mock_vblock.k.data_key_data,

            
            		       sizeof(mock_vblock.k.data_key_data)),

            
            		0, "data key data");

            
            	TEST_EQ(sd->workbuf_used,

            
            		vb2_wb_round_up(sd->data_key_offset +

            
            				sd->data_key_size),

            
            		"workbuf used after");


            	/* Test hwcrypto conditions */

            
            	reset_common_data(FOR_KEYBLOCK);


            	TEST_SUCC(vb2_load_fw_keyblock(ctx), "keyblock verify");

            
            	TEST_EQ(last_used_key.allow_hwcrypto, 0,

            
            		"hwcrypto is forbidden by TPM flag");


            	ctx->flags |= VB2_CONTEXT_RECOVERY_MODE;

            
            	TEST_SUCC(vb2_load_fw_keyblock(ctx), "keyblock verify");

            
            	TEST_EQ(last_used_key.allow_hwcrypto, 0,

            
            		"hwcrypto is forbidden by TPM flag on recovery mode");


            	vb2_secdata_kernel_set(ctx, VB2_SECDATA_KERNEL_FLAGS,

            
            			VB2_SECDATA_KERNEL_FLAG_HWCRYPTO_ALLOWED);


            	TEST_SUCC(vb2_load_fw_keyblock(ctx), "keyblock verify");

            
            	TEST_EQ(last_used_key.allow_hwcrypto, 0,

            
            		"hwcrypto is forbidden on recovery mode");


            	ctx->flags &= ~VB2_CONTEXT_RECOVERY_MODE;

            
            	TEST_SUCC(vb2_load_fw_keyblock(ctx), "keyblock verify");

            
            	TEST_EQ(last_used_key.allow_hwcrypto, 1, "hwcrypto is allowed");


            	/* Test failures */

            
            	reset_common_data(FOR_KEYBLOCK);

            
            	sd->workbuf_used = sd->workbuf_size + VB2_WORKBUF_ALIGN -

            
            			   vb2_wb_round_up(gbb.rootkey_size);

            
            	TEST_EQ(vb2_load_fw_keyblock(ctx),

            
            		VB2_ERROR_FW_KEYBLOCK_WORKBUF_ROOT_KEY,

            
            		"keyblock not enough workbuf for root key");


            	reset_common_data(FOR_KEYBLOCK);

            
            	gbb.rootkey_size = sizeof(mock_gbb);

            
            	TEST_EQ(vb2_load_fw_keyblock(ctx),

            
            		VB2_ERROR_EX_READ_RESOURCE_SIZE,

            
            		"keyblock read root key");


            	reset_common_data(FOR_KEYBLOCK);

            
            	mock_unpack_key_retval = VB2_ERROR_UNPACK_KEY_SIG_ALGORITHM;

            
            	TEST_EQ(vb2_load_fw_keyblock(ctx),

            
            		VB2_ERROR_UNPACK_KEY_SIG_ALGORITHM,

            
            		"keyblock unpack root key");


            	reset_common_data(FOR_KEYBLOCK);

            
            	sd->workbuf_used = sd->workbuf_size -

            
            			   vb2_wb_round_up(gbb.rootkey_size);

            
            	TEST_EQ(vb2_load_fw_keyblock(ctx),

            
            		VB2_ERROR_FW_KEYBLOCK_WORKBUF_HEADER,

            
            		"keyblock not enough workbuf for header");


            	reset_common_data(FOR_KEYBLOCK);

            
            	mock_read_res_fail_on_call = 2;

            
            	TEST_EQ(vb2_load_fw_keyblock(ctx),

            
            		VB2_ERROR_EX_READ_RESOURCE_INDEX,

            
            		"keyblock read keyblock header");


            	reset_common_data(FOR_KEYBLOCK);

            
            	sd->workbuf_used = sd->workbuf_size -

            
            			   vb2_wb_round_up(gbb.rootkey_size) -

            
            			   vb2_wb_round_up(sizeof(struct vb2_keyblock));

            
            	TEST_EQ(vb2_load_fw_keyblock(ctx),

            
            		VB2_ERROR_FW_KEYBLOCK_WORKBUF,

            
            		"keyblock not enough workbuf for entire keyblock");


            	reset_common_data(FOR_KEYBLOCK);

            
            	kb->keyblock_size = sizeof(mock_vblock) + 1;

            
            	TEST_EQ(vb2_load_fw_keyblock(ctx),

            
            		VB2_ERROR_EX_READ_RESOURCE_SIZE,

            
            		"keyblock read keyblock");


            	reset_common_data(FOR_KEYBLOCK);

            
            	mock_verify_keyblock_retval = VB2_ERROR_KEYBLOCK_MAGIC;

            
            	TEST_EQ(vb2_load_fw_keyblock(ctx),

            
            		VB2_ERROR_KEYBLOCK_MAGIC,

            
            		"keyblock verify keyblock");


            	reset_common_data(FOR_KEYBLOCK);

            
            	kb->data_key.key_version = 0x10000;

            
            	TEST_EQ(vb2_load_fw_keyblock(ctx),

            
            		VB2_ERROR_FW_KEYBLOCK_VERSION_RANGE,

            
            		"keyblock version range");


            	reset_common_data(FOR_KEYBLOCK);

            
            	kb->data_key.key_version = 1;

            
            	TEST_EQ(vb2_load_fw_keyblock(ctx),

            
            		VB2_ERROR_FW_KEYBLOCK_VERSION_ROLLBACK,

            
            		"keyblock rollback");


            	reset_common_data(FOR_KEYBLOCK);

            
            	kb->data_key.key_version = 1;

            
            	gbb.flags |= VB2_GBB_FLAG_DISABLE_ROLLBACK_CHECK;

            
            	TEST_SUCC(vb2_load_fw_keyblock(ctx), "keyblock rollback with GBB flag");

            
            }


            static void verify_preamble_tests(void)

            
            {

            
            	struct vb2_fw_preamble *pre = &mock_vblock.p.pre;

            
            	int expected_offset;

            
            	uint32_t v;


            	/* Test successful call */

            
            	reset_common_data(FOR_PREAMBLE);

            
            	expected_offset = sd->workbuf_used;

            
            	TEST_SUCC(vb2_load_fw_preamble(ctx), "preamble good");

            
            	TEST_EQ(sd->fw_version, 0x20002, "combined version");

            
            	TEST_EQ(sd->preamble_offset, expected_offset,

            
            		"preamble offset");

            
            	TEST_EQ(sd->preamble_size, pre->preamble_size, "preamble size");

            
            	TEST_EQ(sd->workbuf_used,

            
            		vb2_wb_round_up(sd->preamble_offset +

            
            				sd->preamble_size),

            
            		"workbuf used");


            	/* Test hwcrypto conditions */

            
            	reset_common_data(FOR_PREAMBLE);


            	TEST_SUCC(vb2_load_fw_preamble(ctx), "preamble good");

            
            	TEST_EQ(last_used_key.allow_hwcrypto, 0,

            
            		"hwcrypto is forbidden by TPM flag");


            	ctx->flags |= VB2_CONTEXT_RECOVERY_MODE;

            
            	TEST_SUCC(vb2_load_fw_preamble(ctx), "preamble good");

            
            	TEST_EQ(last_used_key.allow_hwcrypto, 0,

            
            		"hwcrypto is forbidden by TPM flag on recovery mode");


            	vb2_secdata_kernel_set(ctx, VB2_SECDATA_KERNEL_FLAGS,

            
            			VB2_SECDATA_KERNEL_FLAG_HWCRYPTO_ALLOWED);


            	TEST_SUCC(vb2_load_fw_preamble(ctx), "preamble good");

            
            	TEST_EQ(last_used_key.allow_hwcrypto, 0,

            
            		"hwcrypto is forbidden on recovery mode");


            	ctx->flags &= ~VB2_CONTEXT_RECOVERY_MODE;

            
            	TEST_SUCC(vb2_load_fw_preamble(ctx), "preamble good");

            
            	TEST_EQ(last_used_key.allow_hwcrypto, 1,

            
            		"hwcrypto is allowed");


            	/* Expected failures */

            
            	reset_common_data(FOR_PREAMBLE);

            
            	sd->data_key_size = 0;

            
            	TEST_EQ(vb2_load_fw_preamble(ctx),

            
            		VB2_ERROR_FW_PREAMBLE2_DATA_KEY,

            
            		"preamble no data key");


            	reset_common_data(FOR_PREAMBLE);

            
            	mock_unpack_key_retval = VB2_ERROR_UNPACK_KEY_HASH_ALGORITHM;

            
            	TEST_EQ(vb2_load_fw_preamble(ctx),

            
            		VB2_ERROR_UNPACK_KEY_HASH_ALGORITHM,

            
            		"preamble unpack data key");


            	reset_common_data(FOR_PREAMBLE);

            
            	sd->workbuf_used = sd->workbuf_size + VB2_WORKBUF_ALIGN -

            
            			   vb2_wb_round_up(sizeof(struct vb2_fw_preamble));

            
            	TEST_EQ(vb2_load_fw_preamble(ctx),

            
            		VB2_ERROR_FW_PREAMBLE2_WORKBUF_HEADER,

            
            		"preamble not enough workbuf for header");


            	reset_common_data(FOR_PREAMBLE);

            
            	sd->vblock_preamble_offset = sizeof(mock_vblock);

            
            	TEST_EQ(vb2_load_fw_preamble(ctx),

            
            		VB2_ERROR_EX_READ_RESOURCE_SIZE,

            
            		"preamble read header");


            	reset_common_data(FOR_PREAMBLE);

            
            	sd->workbuf_used = sd->workbuf_size + VB2_WORKBUF_ALIGN -

            
            			   vb2_wb_round_up(sizeof(mock_vblock.p));

            
            	TEST_EQ(vb2_load_fw_preamble(ctx),

            
            		VB2_ERROR_FW_PREAMBLE2_WORKBUF,

            
            		"preamble not enough workbuf");


            	reset_common_data(FOR_PREAMBLE);

            
            	pre->preamble_size = sizeof(mock_vblock);

            
            	TEST_EQ(vb2_load_fw_preamble(ctx),

            
            		VB2_ERROR_EX_READ_RESOURCE_SIZE,

            
            		"preamble read full");


            	reset_common_data(FOR_PREAMBLE);

            
            	mock_verify_preamble_retval = VB2_ERROR_PREAMBLE_SIG_INVALID;

            
            	TEST_EQ(vb2_load_fw_preamble(ctx),

            
            		VB2_ERROR_PREAMBLE_SIG_INVALID,

            
            		"preamble verify");


            	reset_common_data(FOR_PREAMBLE);

            
            	pre->firmware_version = 0x10000;

            
            	TEST_EQ(vb2_load_fw_preamble(ctx),

            
            		VB2_ERROR_FW_PREAMBLE_VERSION_RANGE,

            
            		"preamble version range");


            	reset_common_data(FOR_PREAMBLE);

            
            	pre->firmware_version = 1;

            
            	TEST_EQ(vb2_load_fw_preamble(ctx),

            
            		VB2_ERROR_FW_PREAMBLE_VERSION_ROLLBACK,

            
            		"preamble version rollback");


            	reset_common_data(FOR_PREAMBLE);

            
            	pre->firmware_version = 1;

            
            	gbb.flags |= VB2_GBB_FLAG_DISABLE_ROLLBACK_CHECK;

            
            	TEST_SUCC(vb2_load_fw_preamble(ctx), "version rollback with GBB flag");


            	reset_common_data(FOR_PREAMBLE);

            
            	pre->firmware_version = 3;

            
            	TEST_SUCC(vb2_load_fw_preamble(ctx),

            
            		  "preamble version roll forward");

            
            	v = vb2_secdata_firmware_get(ctx, VB2_SECDATA_FIRMWARE_VERSIONS);

            
            	TEST_EQ(v, 0x20003, "roll forward");


            	/* Newer version without result success doesn't roll forward */

            
            	reset_common_data(FOR_PREAMBLE);

            
            	pre->firmware_version = 3;

            
            	sd->last_fw_result = VB2_FW_RESULT_UNKNOWN;

            
            	TEST_SUCC(vb2_load_fw_preamble(ctx),

            
            		  "preamble version no roll forward 1");

            
            	v = vb2_secdata_firmware_get(ctx, VB2_SECDATA_FIRMWARE_VERSIONS);

            
            	TEST_EQ(v, 0x20002, "no roll forward");


            	/* Newer version with success but for other slot doesn't roll forward */

            
            	reset_common_data(FOR_PREAMBLE);

            
            	pre->firmware_version = 3;

            
            	sd->last_fw_slot = 1;

            
            	TEST_SUCC(vb2_load_fw_preamble(ctx),

            
            		  "preamble version no roll forward 2");

            
            	v = vb2_secdata_firmware_get(ctx, VB2_SECDATA_FIRMWARE_VERSIONS);

            
            	TEST_EQ(v, 0x20002, "no roll forward");

            
            }


            int main(int argc, char* argv[])

            
            {

            
            	verify_keyblock_tests();

            
            	verify_preamble_tests();


            	return gTestSuccess ? 0 : 255;

            
            }
	/* Copyright 2014 The ChromiumOS Authors
	* Use of this source code is governed by a BSD-style license that can be
	* found in the LICENSE file.
	*
	* Tests for firmware verification library
	*/

	#include <stdio.h>

	#include "2api.h"
	#include "2common.h"
	#include "2misc.h"
	#include "2nvstorage.h"
	#include "2rsa.h"
	#include "2secdata.h"
	#include "2sysincludes.h"
	#include "common/tests.h"

	/* Common context for tests */
	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_gbb_header gbb;

	/* Mocked function data */

	static struct {
	struct vb2_gbb_header h;
	struct vb2_packed_key rootkey;
	char rootkey_data[32];
	} mock_gbb;

	static struct {
	/* Keyblock */
	struct {
	struct vb2_keyblock kb;
	char data_key_data[16];
	uint8_t kbdata[128];
	} k;
	/* Preamble follows keyblock */
	struct {
	struct vb2_fw_preamble pre;
	uint8_t predata[128];
	} p;

	} mock_vblock;

	static int mock_read_res_fail_on_call;
	static int mock_unpack_key_retval;
	static int mock_verify_keyblock_retval;
	static int mock_verify_preamble_retval;

	/* Type of test to reset for */
	enum reset_type {
	FOR_KEYBLOCK,
	FOR_PREAMBLE
	};

	static void reset_common_data(enum reset_type t)
	{
	struct vb2_keyblock *kb = &mock_vblock.k.kb;
	struct vb2_fw_preamble *pre = &mock_vblock.p.pre;

	memset(workbuf, 0xaa, sizeof(workbuf));

	TEST_SUCC(vb2api_init(workbuf, sizeof(workbuf), &ctx),
	"vb2api_init failed");

	memset(&gbb, 0, sizeof(gbb));
	sd = vb2_get_sd(ctx);

	vb2_nv_init(ctx);

	vb2api_secdata_firmware_create(ctx);
	vb2_secdata_firmware_init(ctx);

	vb2api_secdata_kernel_create(ctx);
	vb2_secdata_kernel_init(ctx);

	mock_read_res_fail_on_call = 0;
	mock_unpack_key_retval = VB2_SUCCESS;
	mock_verify_keyblock_retval = VB2_SUCCESS;
	mock_verify_preamble_retval = VB2_SUCCESS;

	/* Set up mock data for verifying keyblock */
	sd->fw_version_secdata = 0x20002;
	vb2_secdata_firmware_set(ctx, VB2_SECDATA_FIRMWARE_VERSIONS,
	sd->fw_version_secdata);

	gbb.rootkey_offset = vb2_offset_of(&mock_gbb, &mock_gbb.rootkey);
	gbb.rootkey_size = sizeof(mock_gbb.rootkey_data);
	sd->last_fw_result = VB2_FW_RESULT_SUCCESS;

	mock_gbb.rootkey.algorithm = 11;
	mock_gbb.rootkey.key_offset =
	vb2_offset_of(&mock_gbb.rootkey,
	&mock_gbb.rootkey_data);
	mock_gbb.rootkey.key_size = sizeof(mock_gbb.rootkey_data);

	kb->keyblock_size = sizeof(mock_vblock.k);
	kb->data_key.algorithm = 7;
	kb->data_key.key_version = 2;
	kb->data_key.key_offset =
	vb2_offset_of(&mock_vblock.k, &mock_vblock.k.data_key_data) -
	vb2_offset_of(&mock_vblock.k, &kb->data_key);
	kb->data_key.key_size = sizeof(mock_vblock.k.data_key_data);
	strcpy(mock_vblock.k.data_key_data, "data key data!!");

	pre->preamble_size = sizeof(mock_vblock.p);
	pre->firmware_version = 2;

	/* If verifying preamble, verify keyblock first to set up data key */
	if (t == FOR_PREAMBLE)
	vb2_load_fw_keyblock(ctx);
	};

	/* Mocked functions */
	struct vb2_gbb_header vb2_get_gbb(struct vb2_context c)
	{
	return &gbb;
	}

	vb2_error_t vb2ex_read_resource(struct vb2_context *c,
	enum vb2_resource_index index, uint32_t offset,
	void *buf, uint32_t size)
	{
	uint8_t *rptr;
	uint32_t rsize;

	if (--mock_read_res_fail_on_call == 0)
	return VB2_ERROR_EX_READ_RESOURCE_INDEX;

	switch(index) {
	case VB2_RES_GBB:
	rptr = (uint8_t *)&mock_gbb;
	rsize = sizeof(mock_gbb);
	break;
	case VB2_RES_FW_VBLOCK:
	rptr = (uint8_t *)&mock_vblock;
	rsize = sizeof(mock_vblock);
	break;
	default:
	return VB2_ERROR_EX_READ_RESOURCE_INDEX;
	}

	if (offset > rsize \|\| offset + size > rsize)
	return VB2_ERROR_EX_READ_RESOURCE_SIZE;

	memcpy(buf, rptr + offset, size);
	return VB2_SUCCESS;
	}

	vb2_error_t vb2_unpack_key_buffer(struct vb2_public_key *key,
	const uint8_t *buf, uint32_t size)
	{
	key->arrsize = 0;
	return mock_unpack_key_retval;
	}

	static struct vb2_public_key last_used_key;

	vb2_error_t vb2_verify_keyblock(struct vb2_keyblock *block, uint32_t size,
	const struct vb2_public_key *key,
	const struct vb2_workbuf *wb)
	{
	memcpy(&last_used_key, key, sizeof(struct vb2_public_key));
	return mock_verify_keyblock_retval;
	}

	vb2_error_t vb2_verify_fw_preamble(struct vb2_fw_preamble *preamble,
	uint32_t size,
	const struct vb2_public_key *key,
	const struct vb2_workbuf *wb)
	{
	memcpy(&last_used_key, key, sizeof(struct vb2_public_key));
	return mock_verify_preamble_retval;
	}

	/* Tests */

	static void verify_keyblock_tests(void)
	{
	struct vb2_keyblock *kb = &mock_vblock.k.kb;
	struct vb2_packed_key *k;
	int expected_offset;

	/* Test successful call */
	reset_common_data(FOR_KEYBLOCK);
	expected_offset = sd->workbuf_used;
	TEST_SUCC(vb2_load_fw_keyblock(ctx), "keyblock verify");
	TEST_EQ(sd->fw_version, 0x20000, "keyblock version");
	TEST_EQ(sd->vblock_preamble_offset, sizeof(mock_vblock.k),
	"preamble offset");
	TEST_EQ(sd->data_key_offset, expected_offset,
	"keyblock data key offset");
	TEST_EQ(sd->workbuf_used,
	vb2_wb_round_up(sd->data_key_offset +
	sd->data_key_size),
	"workbuf used");

	/* Make sure data key was properly saved */
	k = vb2_member_of(sd, sd->data_key_offset);
	TEST_EQ(k->algorithm, 7, "data key algorithm");
	TEST_EQ(k->key_version, 2, "data key version");
	TEST_EQ(k->key_size, sizeof(mock_vblock.k.data_key_data),
	"data key size");
	TEST_EQ(memcmp(vb2_member_of(k, k->key_offset),
	mock_vblock.k.data_key_data,
	sizeof(mock_vblock.k.data_key_data)),
	0, "data key data");
	TEST_EQ(sd->workbuf_used,
	vb2_wb_round_up(sd->data_key_offset +
	sd->data_key_size),
	"workbuf used after");

	/* Test hwcrypto conditions */
	reset_common_data(FOR_KEYBLOCK);

	TEST_SUCC(vb2_load_fw_keyblock(ctx), "keyblock verify");
	TEST_EQ(last_used_key.allow_hwcrypto, 0,
	"hwcrypto is forbidden by TPM flag");

	ctx->flags \|= VB2_CONTEXT_RECOVERY_MODE;
	TEST_SUCC(vb2_load_fw_keyblock(ctx), "keyblock verify");
	TEST_EQ(last_used_key.allow_hwcrypto, 0,
	"hwcrypto is forbidden by TPM flag on recovery mode");

	vb2_secdata_kernel_set(ctx, VB2_SECDATA_KERNEL_FLAGS,
	VB2_SECDATA_KERNEL_FLAG_HWCRYPTO_ALLOWED);

	TEST_SUCC(vb2_load_fw_keyblock(ctx), "keyblock verify");
	TEST_EQ(last_used_key.allow_hwcrypto, 0,
	"hwcrypto is forbidden on recovery mode");

	ctx->flags &= ~VB2_CONTEXT_RECOVERY_MODE;
	TEST_SUCC(vb2_load_fw_keyblock(ctx), "keyblock verify");
	TEST_EQ(last_used_key.allow_hwcrypto, 1, "hwcrypto is allowed");

	/* Test failures */
	reset_common_data(FOR_KEYBLOCK);
	sd->workbuf_used = sd->workbuf_size + VB2_WORKBUF_ALIGN -
	vb2_wb_round_up(gbb.rootkey_size);
	TEST_EQ(vb2_load_fw_keyblock(ctx),
	VB2_ERROR_FW_KEYBLOCK_WORKBUF_ROOT_KEY,
	"keyblock not enough workbuf for root key");

	reset_common_data(FOR_KEYBLOCK);
	gbb.rootkey_size = sizeof(mock_gbb);
	TEST_EQ(vb2_load_fw_keyblock(ctx),
	VB2_ERROR_EX_READ_RESOURCE_SIZE,
	"keyblock read root key");

	reset_common_data(FOR_KEYBLOCK);
	mock_unpack_key_retval = VB2_ERROR_UNPACK_KEY_SIG_ALGORITHM;
	TEST_EQ(vb2_load_fw_keyblock(ctx),
	VB2_ERROR_UNPACK_KEY_SIG_ALGORITHM,
	"keyblock unpack root key");

	reset_common_data(FOR_KEYBLOCK);
	sd->workbuf_used = sd->workbuf_size -
	vb2_wb_round_up(gbb.rootkey_size);
	TEST_EQ(vb2_load_fw_keyblock(ctx),
	VB2_ERROR_FW_KEYBLOCK_WORKBUF_HEADER,
	"keyblock not enough workbuf for header");

	reset_common_data(FOR_KEYBLOCK);
	mock_read_res_fail_on_call = 2;
	TEST_EQ(vb2_load_fw_keyblock(ctx),
	VB2_ERROR_EX_READ_RESOURCE_INDEX,
	"keyblock read keyblock header");

	reset_common_data(FOR_KEYBLOCK);
	sd->workbuf_used = sd->workbuf_size -
	vb2_wb_round_up(gbb.rootkey_size) -
	vb2_wb_round_up(sizeof(struct vb2_keyblock));
	TEST_EQ(vb2_load_fw_keyblock(ctx),
	VB2_ERROR_FW_KEYBLOCK_WORKBUF,
	"keyblock not enough workbuf for entire keyblock");

	reset_common_data(FOR_KEYBLOCK);
	kb->keyblock_size = sizeof(mock_vblock) + 1;
	TEST_EQ(vb2_load_fw_keyblock(ctx),
	VB2_ERROR_EX_READ_RESOURCE_SIZE,
	"keyblock read keyblock");

	reset_common_data(FOR_KEYBLOCK);
	mock_verify_keyblock_retval = VB2_ERROR_KEYBLOCK_MAGIC;
	TEST_EQ(vb2_load_fw_keyblock(ctx),
	VB2_ERROR_KEYBLOCK_MAGIC,
	"keyblock verify keyblock");

	reset_common_data(FOR_KEYBLOCK);
	kb->data_key.key_version = 0x10000;
	TEST_EQ(vb2_load_fw_keyblock(ctx),
	VB2_ERROR_FW_KEYBLOCK_VERSION_RANGE,
	"keyblock version range");

	reset_common_data(FOR_KEYBLOCK);
	kb->data_key.key_version = 1;
	TEST_EQ(vb2_load_fw_keyblock(ctx),
	VB2_ERROR_FW_KEYBLOCK_VERSION_ROLLBACK,
	"keyblock rollback");

	reset_common_data(FOR_KEYBLOCK);
	kb->data_key.key_version = 1;
	gbb.flags \|= VB2_GBB_FLAG_DISABLE_ROLLBACK_CHECK;
	TEST_SUCC(vb2_load_fw_keyblock(ctx), "keyblock rollback with GBB flag");
	}

	static void verify_preamble_tests(void)
	{
	struct vb2_fw_preamble *pre = &mock_vblock.p.pre;
	int expected_offset;
	uint32_t v;

	/* Test successful call */
	reset_common_data(FOR_PREAMBLE);
	expected_offset = sd->workbuf_used;
	TEST_SUCC(vb2_load_fw_preamble(ctx), "preamble good");
	TEST_EQ(sd->fw_version, 0x20002, "combined version");
	TEST_EQ(sd->preamble_offset, expected_offset,
	"preamble offset");
	TEST_EQ(sd->preamble_size, pre->preamble_size, "preamble size");
	TEST_EQ(sd->workbuf_used,
	vb2_wb_round_up(sd->preamble_offset +
	sd->preamble_size),
	"workbuf used");

	/* Test hwcrypto conditions */
	reset_common_data(FOR_PREAMBLE);

	TEST_SUCC(vb2_load_fw_preamble(ctx), "preamble good");
	TEST_EQ(last_used_key.allow_hwcrypto, 0,
	"hwcrypto is forbidden by TPM flag");

	ctx->flags \|= VB2_CONTEXT_RECOVERY_MODE;
	TEST_SUCC(vb2_load_fw_preamble(ctx), "preamble good");
	TEST_EQ(last_used_key.allow_hwcrypto, 0,
	"hwcrypto is forbidden by TPM flag on recovery mode");

	vb2_secdata_kernel_set(ctx, VB2_SECDATA_KERNEL_FLAGS,
	VB2_SECDATA_KERNEL_FLAG_HWCRYPTO_ALLOWED);

	TEST_SUCC(vb2_load_fw_preamble(ctx), "preamble good");
	TEST_EQ(last_used_key.allow_hwcrypto, 0,
	"hwcrypto is forbidden on recovery mode");

	ctx->flags &= ~VB2_CONTEXT_RECOVERY_MODE;
	TEST_SUCC(vb2_load_fw_preamble(ctx), "preamble good");
	TEST_EQ(last_used_key.allow_hwcrypto, 1,
	"hwcrypto is allowed");


	/* Expected failures */
	reset_common_data(FOR_PREAMBLE);
	sd->data_key_size = 0;
	TEST_EQ(vb2_load_fw_preamble(ctx),
	VB2_ERROR_FW_PREAMBLE2_DATA_KEY,
	"preamble no data key");

	reset_common_data(FOR_PREAMBLE);
	mock_unpack_key_retval = VB2_ERROR_UNPACK_KEY_HASH_ALGORITHM;
	TEST_EQ(vb2_load_fw_preamble(ctx),
	VB2_ERROR_UNPACK_KEY_HASH_ALGORITHM,
	"preamble unpack data key");

	reset_common_data(FOR_PREAMBLE);
	sd->workbuf_used = sd->workbuf_size + VB2_WORKBUF_ALIGN -
	vb2_wb_round_up(sizeof(struct vb2_fw_preamble));
	TEST_EQ(vb2_load_fw_preamble(ctx),
	VB2_ERROR_FW_PREAMBLE2_WORKBUF_HEADER,
	"preamble not enough workbuf for header");

	reset_common_data(FOR_PREAMBLE);
	sd->vblock_preamble_offset = sizeof(mock_vblock);
	TEST_EQ(vb2_load_fw_preamble(ctx),
	VB2_ERROR_EX_READ_RESOURCE_SIZE,
	"preamble read header");

	reset_common_data(FOR_PREAMBLE);
	sd->workbuf_used = sd->workbuf_size + VB2_WORKBUF_ALIGN -
	vb2_wb_round_up(sizeof(mock_vblock.p));
	TEST_EQ(vb2_load_fw_preamble(ctx),
	VB2_ERROR_FW_PREAMBLE2_WORKBUF,
	"preamble not enough workbuf");

	reset_common_data(FOR_PREAMBLE);
	pre->preamble_size = sizeof(mock_vblock);
	TEST_EQ(vb2_load_fw_preamble(ctx),
	VB2_ERROR_EX_READ_RESOURCE_SIZE,
	"preamble read full");

	reset_common_data(FOR_PREAMBLE);
	mock_verify_preamble_retval = VB2_ERROR_PREAMBLE_SIG_INVALID;
	TEST_EQ(vb2_load_fw_preamble(ctx),
	VB2_ERROR_PREAMBLE_SIG_INVALID,
	"preamble verify");

	reset_common_data(FOR_PREAMBLE);
	pre->firmware_version = 0x10000;
	TEST_EQ(vb2_load_fw_preamble(ctx),
	VB2_ERROR_FW_PREAMBLE_VERSION_RANGE,
	"preamble version range");

	reset_common_data(FOR_PREAMBLE);
	pre->firmware_version = 1;
	TEST_EQ(vb2_load_fw_preamble(ctx),
	VB2_ERROR_FW_PREAMBLE_VERSION_ROLLBACK,
	"preamble version rollback");

	reset_common_data(FOR_PREAMBLE);
	pre->firmware_version = 1;
	gbb.flags \|= VB2_GBB_FLAG_DISABLE_ROLLBACK_CHECK;
	TEST_SUCC(vb2_load_fw_preamble(ctx), "version rollback with GBB flag");

	reset_common_data(FOR_PREAMBLE);
	pre->firmware_version = 3;
	TEST_SUCC(vb2_load_fw_preamble(ctx),
	"preamble version roll forward");
	v = vb2_secdata_firmware_get(ctx, VB2_SECDATA_FIRMWARE_VERSIONS);
	TEST_EQ(v, 0x20003, "roll forward");

	/* Newer version without result success doesn't roll forward */
	reset_common_data(FOR_PREAMBLE);
	pre->firmware_version = 3;
	sd->last_fw_result = VB2_FW_RESULT_UNKNOWN;
	TEST_SUCC(vb2_load_fw_preamble(ctx),
	"preamble version no roll forward 1");
	v = vb2_secdata_firmware_get(ctx, VB2_SECDATA_FIRMWARE_VERSIONS);
	TEST_EQ(v, 0x20002, "no roll forward");

	/* Newer version with success but for other slot doesn't roll forward */
	reset_common_data(FOR_PREAMBLE);
	pre->firmware_version = 3;
	sd->last_fw_slot = 1;
	TEST_SUCC(vb2_load_fw_preamble(ctx),
	"preamble version no roll forward 2");
	v = vb2_secdata_firmware_get(ctx, VB2_SECDATA_FIRMWARE_VERSIONS);
	TEST_EQ(v, 0x20002, "no roll forward");
	}

	int main(int argc, char* argv[])
	{
	verify_keyblock_tests();
	verify_preamble_tests();

	return gTestSuccess ? 0 : 255;
	}