void vb2api_fail(struct vb2_context *ctx, uint8_t reason, uint8_t subcode)
{
/* Initialize the vboot context if it hasn't been yet */
vb2_init_context(ctx);
vb2_fail(ctx, reason, subcode);
}
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));
memset(&cc, 0, sizeof(cc));
cc.workbuf = workbuf;
cc.workbuf_size = sizeof(workbuf);
vb2_init_context(&cc);
sd = vb2_get_sd(&cc);
vb2_nv_init(&cc);
vb2_secdata_create(&cc);
vb2_secdata_init(&cc);
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_set(&cc, VB2_SECDATA_VERSIONS, sd->fw_version_secdata);
sd->gbb_rootkey_offset = vb2_offset_of(&mock_gbb, &mock_gbb.rootkey);
sd->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(&cc);
};
static void reset_common_data(void)
{
memset(workbuf, 0xaa, sizeof(workbuf));
memset(&cc, 0, sizeof(cc));
cc.workbuf = workbuf;
cc.workbuf_size = sizeof(workbuf);
vb2_init_context(&cc);
sd = vb2_get_sd(&cc);
vb2_nv_init(&cc);
vb2_secdata_create(&cc);
vb2_secdata_init(&cc);
mock_tpm_clear_called = 0;
mock_tpm_clear_retval = VB2_SUCCESS;
};
/* Reset mock data (for use before each test) */
static void ResetMocks(void)
{
int gbb_used;
memset(gbb_data, 0, sizeof(gbb_data));
gbb->major_version = GBB_MAJOR_VER;
gbb->minor_version = GBB_MINOR_VER;
gbb->flags = 0;
gbb_used = sizeof(GoogleBinaryBlockHeader);
gbb->hwid_offset = gbb_used;
strcpy(gbb_data + gbb->hwid_offset, "Test HWID");
gbb->hwid_size = strlen(gbb_data + gbb->hwid_offset) + 1;
gbb_used = (gbb_used + gbb->hwid_size + 7) & ~7;
mock_localization_count = 3;
mock_altfw_mask = 3 << 1; /* This mask selects 1 and 2 */
gbb->header_size = sizeof(*gbb);
gbb->rootkey_offset = gbb_used;
gbb->rootkey_size = 64;
gbb_used += 64;
gbb->recovery_key_offset = gbb_used;
gbb->recovery_key_size = 64;
gbb_used += 64;
memset(&ctx, 0, sizeof(ctx));
ctx.workbuf = workbuf;
ctx.workbuf_size = sizeof(workbuf);
vb2_init_context(&ctx);
vb2_nv_init(&ctx);
sd = vb2_get_sd(&ctx);
sd->vbsd = shared;
sd->gbb = (struct vb2_gbb_header *)gbb_data;
sd->gbb_size = sizeof(gbb_data);
memset(&shared_data, 0, sizeof(shared_data));
VbSharedDataInit(shared, sizeof(shared_data));
*debug_info = 0;
}
int vb2api_fw_phase1(struct vb2_context *ctx)
{
int rv;
/* Initialize the vboot context if it hasn't been yet */
vb2_init_context(ctx);
/* Initialize NV context */
vb2_nv_init(ctx);
/* Initialize secure data */
rv = vb2_secdata_init(ctx);
if (rv)
vb2_fail(ctx, VB2_RECOVERY_SECDATA_INIT, rv);
/* Load and parse the GBB header */
rv = vb2_fw_parse_gbb(ctx);
if (rv)
vb2_fail(ctx, VB2_RECOVERY_GBB_HEADER, rv);
/* Check for dev switch */
rv = vb2_check_dev_switch(ctx);
if (rv)
vb2_fail(ctx, VB2_RECOVERY_DEV_SWITCH, rv);
/*
* Check for recovery. Note that this function returns void, since
* any errors result in requesting recovery.
*/
vb2_check_recovery(ctx);
/* Return error if recovery is needed */
if (ctx->flags & VB2_CONTEXT_RECOVERY_MODE) {
/* Always clear RAM when entering recovery mode */
ctx->flags |= VB2_CONTEXT_CLEAR_RAM;
return VB2_ERROR_API_PHASE1_RECOVERY;
}
return VB2_SUCCESS;
}
static void reset_common_data(enum reset_type t)
{
struct vb2_packed_key *k;
memset(workbuf, 0xaa, sizeof(workbuf));
memset(&cc, 0, sizeof(cc));
cc.workbuf = workbuf;
cc.workbuf_size = sizeof(workbuf);
vb2_workbuf_from_ctx(&cc, &wb);
vb2_init_context(&cc);
sd = vb2_get_sd(&cc);
vb2_nv_init(&cc);
vb2_secdatak_create(&cc);
vb2_secdatak_init(&cc);
vb2_secdatak_set(&cc, VB2_SECDATAK_VERSIONS, 0x20002);
mock_read_res_fail_on_call = 0;
mock_unpack_key_retval = VB2_SUCCESS;
mock_read_gbb_header_retval = VB2_SUCCESS;
mock_load_kernel_keyblock_retval = VB2_SUCCESS;
mock_load_kernel_preamble_retval = VB2_SUCCESS;
/* Recovery key in mock GBB */
mock_gbb.recovery_key.algorithm = 11;
mock_gbb.recovery_key.key_offset =
vb2_offset_of(&mock_gbb.recovery_key,
&mock_gbb.recovery_key_data);
mock_gbb.recovery_key.key_size = sizeof(mock_gbb.recovery_key_data);
strcpy(mock_gbb.recovery_key_data, "The recovery key");
mock_gbb.h.recovery_key_offset =
vb2_offset_of(&mock_gbb, &mock_gbb.recovery_key);
mock_gbb.h.recovery_key_size =
mock_gbb.recovery_key.key_offset +
mock_gbb.recovery_key.key_size;
if (t == FOR_PHASE1) {
uint8_t *kdata;
/* Create mock firmware preamble in the context */
sd->workbuf_preamble_offset = cc.workbuf_used;
fwpre = (struct vb2_fw_preamble *)
(cc.workbuf + sd->workbuf_preamble_offset);
k = &fwpre->kernel_subkey;
kdata = (uint8_t *)fwpre + sizeof(*fwpre);
memcpy(kdata, fw_kernel_key_data, sizeof(fw_kernel_key_data));
k->algorithm = 7;
k->key_offset = vb2_offset_of(k, kdata);
k->key_size = sizeof(fw_kernel_key_data);
sd->workbuf_preamble_size = sizeof(*fwpre) + k->key_size;
cc.workbuf_used += sd->workbuf_preamble_size;
} else if (t == FOR_PHASE2) {
struct vb2_signature *sig;
struct vb2_digest_context dc;
uint8_t *sdata;
/* Create mock kernel data key */
sd->workbuf_data_key_offset = cc.workbuf_used;
kdkey = (struct vb2_packed_key *)
(cc.workbuf + sd->workbuf_data_key_offset);
kdkey->algorithm = VB2_ALG_RSA2048_SHA256;
sd->workbuf_data_key_size = sizeof(*kdkey);
cc.workbuf_used += sd->workbuf_data_key_size;
/* Create mock kernel preamble in the context */
sd->workbuf_preamble_offset = cc.workbuf_used;
kpre = (struct vb2_kernel_preamble *)
(cc.workbuf + sd->workbuf_preamble_offset);
sdata = (uint8_t *)kpre + sizeof(*kpre);
sig = &kpre->body_signature;
sig->data_size = sizeof(kernel_data);
sig->sig_offset = vb2_offset_of(sig, sdata);
sig->sig_size = VB2_SHA512_DIGEST_SIZE;
vb2_digest_init(&dc, VB2_HASH_SHA256);
vb2_digest_extend(&dc, (const uint8_t *)kernel_data,
sizeof(kernel_data));
vb2_digest_finalize(&dc, sdata, sig->sig_size);
sd->workbuf_preamble_size = sizeof(*kpre) + sig->sig_size;
sd->vblock_preamble_offset =
0x10000 - sd->workbuf_preamble_size;
cc.workbuf_used += sd->workbuf_preamble_size;
} else {
/* Set flags and versions for roll-forward */
sd->kernel_version = 0x20004;
sd->kernel_version_secdatak = 0x20002;
sd->flags |= VB2_SD_FLAG_KERNEL_SIGNED;
cc.flags |= VB2_CONTEXT_ALLOW_KERNEL_ROLL_FORWARD;
}
};
int vb2api_fw_phase1(struct vb2_context *ctx)
{
int rv;
struct vb2_shared_data *sd;
/* Initialize the vboot context if it hasn't been yet */
vb2_init_context(ctx);
sd = vb2_get_sd(ctx);
/* Initialize NV context */
vb2_nv_init(ctx);
/*
* Handle caller-requested reboot due to secdata. Do this before we
* even look at secdata. If we fail because of a reboot loop we'll be
* the first failure so will get to set the recovery reason.
*/
if (!(ctx->flags & VB2_CONTEXT_SECDATA_WANTS_REBOOT)) {
/* No reboot requested */
vb2_nv_set(ctx, VB2_NV_TPM_REQUESTED_REBOOT, 0);
} else if (vb2_nv_get(ctx, VB2_NV_TPM_REQUESTED_REBOOT)) {
/*
* Reboot requested... again. Fool me once, shame on you.
* Fool me twice, shame on me. Fail into recovery to avoid
* a reboot loop.
*/
vb2_fail(ctx, VB2_RECOVERY_RO_TPM_REBOOT, 0);
} else {
/* Reboot requested for the first time */
vb2_nv_set(ctx, VB2_NV_TPM_REQUESTED_REBOOT, 1);
return VB2_ERROR_API_PHASE1_SECDATA_REBOOT;
}
/* Initialize secure data */
rv = vb2_secdata_init(ctx);
if (rv)
vb2_fail(ctx, VB2_RECOVERY_SECDATA_INIT, rv);
/* Load and parse the GBB header */
rv = vb2_fw_parse_gbb(ctx);
if (rv)
vb2_fail(ctx, VB2_RECOVERY_GBB_HEADER, rv);
/*
* Check for recovery. Note that this function returns void, since any
* errors result in requesting recovery. That's also why we don't
* return error from failures in the preceding two steps; those
* failures simply cause us to detect recovery mode here.
*/
vb2_check_recovery(ctx);
/* Check for dev switch */
rv = vb2_check_dev_switch(ctx);
if (rv && !(ctx->flags & VB2_CONTEXT_RECOVERY_MODE)) {
/*
* Error in dev switch processing, and we weren't already
* headed for recovery mode. Reboot into recovery mode, since
* it's too late to handle those errors this boot, and we need
* to take a different path through the dev switch checking
* code in that case.
*/
vb2_fail(ctx, VB2_RECOVERY_DEV_SWITCH, rv);
return rv;
}
/*
* Check for possible reasons to ask the firmware to make display
* available. sd->recovery_reason may have been set above by
* vb2_check_recovery. VB2_SD_FLAG_DEV_MODE_ENABLED may have been set
* above by vb2_check_dev_switch.
*/
if (!(ctx->flags & VB2_CONTEXT_DISPLAY_INIT) &&
(vb2_nv_get(ctx, VB2_NV_OPROM_NEEDED) ||
sd->flags & VB2_SD_FLAG_DEV_MODE_ENABLED ||
sd->recovery_reason))
ctx->flags |= VB2_CONTEXT_DISPLAY_INIT;
/* Mark display as available for downstream vboot and vboot callers. */
if (ctx->flags & VB2_CONTEXT_DISPLAY_INIT)
sd->flags |= VB2_SD_FLAG_DISPLAY_AVAILABLE;
/* Return error if recovery is needed */
if (ctx->flags & VB2_CONTEXT_RECOVERY_MODE) {
/* Always clear RAM when entering recovery mode */
ctx->flags |= VB2_CONTEXT_CLEAR_RAM;
return VB2_ERROR_API_PHASE1_RECOVERY;
}
return VB2_SUCCESS;
}
static void nv_storage_test(void)
{
struct nv_field *vnf;
uint8_t goodcrc;
uint8_t workbuf[VB2_WORKBUF_RECOMMENDED_SIZE]
__attribute__ ((aligned (VB2_WORKBUF_ALIGN)));
struct vb2_context c = {
.flags = 0,
.workbuf = workbuf,
.workbuf_size = sizeof(workbuf),
};
struct vb2_shared_data *sd = vb2_get_sd(&c);
memset(c.nvdata, 0xA6, sizeof(c.nvdata));
vb2_init_context(&c);
/* Init with invalid data should set defaults and regenerate CRC */
vb2_nv_init(&c);
TEST_EQ(c.nvdata[0], 0x70, "vb2_nv_init() reset header byte");
TEST_NEQ(c.nvdata[15], 0, "vb2_nv_init() CRC");
TEST_EQ(sd->status, VB2_SD_STATUS_NV_INIT | VB2_SD_STATUS_NV_REINIT,
"vb2_nv_init() status changed");
test_changed(&c, 1, "vb2_nv_init() reset changed");
goodcrc = c.nvdata[15];
TEST_SUCC(vb2_nv_check_crc(&c), "vb2_nv_check_crc() good");
/* Another init should not cause further changes */
c.flags = 0;
sd->status = 0;
vb2_nv_init(&c);
test_changed(&c, 0, "vb2_nv_init() didn't re-reset");
TEST_EQ(c.nvdata[15], goodcrc, "vb2_nv_init() CRC same");
TEST_EQ(sd->status, VB2_SD_STATUS_NV_INIT, "vb2_nv_init() status same");
/* Perturbing the header should force defaults */
c.nvdata[0] ^= 0x40;
TEST_EQ(vb2_nv_check_crc(&c),
VB2_ERROR_NV_HEADER, "vb2_nv_check_crc() bad header");
vb2_nv_init(&c);
TEST_EQ(c.nvdata[0], 0x70, "vb2_nv_init() reset header byte again");
test_changed(&c, 1, "vb2_nv_init() corrupt changed");
TEST_EQ(c.nvdata[15], goodcrc, "vb2_nv_init() CRC same again");
/* So should perturbing some other byte */
TEST_EQ(c.nvdata[11], 0, "Kernel byte starts at 0");
c.nvdata[11] = 12;
TEST_EQ(vb2_nv_check_crc(&c),
VB2_ERROR_NV_CRC, "vb2_nv_check_crc() bad CRC");
vb2_nv_init(&c);
TEST_EQ(c.nvdata[11], 0, "vb2_nv_init() reset kernel byte");
test_changed(&c, 1, "vb2_nv_init() corrupt elsewhere changed");
TEST_EQ(c.nvdata[15], goodcrc, "vb2_nv_init() CRC same again");
/* Clear the kernel and firmware flags */
vb2_nv_init(&c);
TEST_EQ(vb2_nv_get(&c, VB2_NV_FIRMWARE_SETTINGS_RESET),
1, "Firmware settings are reset");
vb2_nv_set(&c, VB2_NV_FIRMWARE_SETTINGS_RESET, 0);
TEST_EQ(vb2_nv_get(&c, VB2_NV_FIRMWARE_SETTINGS_RESET),
0, "Firmware settings are clear");
TEST_EQ(vb2_nv_get(&c, VB2_NV_KERNEL_SETTINGS_RESET),
1, "Kernel settings are reset");
vb2_nv_set(&c, VB2_NV_KERNEL_SETTINGS_RESET, 0);
TEST_EQ(vb2_nv_get(&c, VB2_NV_KERNEL_SETTINGS_RESET),
0, "Kernel settings are clear");
TEST_EQ(c.nvdata[0], 0x40, "Header byte now just has the header bit");
/* That should have changed the CRC */
TEST_NEQ(c.nvdata[15], goodcrc,
"vb2_nv_init() CRC changed due to flags clear");
/* Test explicitly setting the reset flags again */
vb2_nv_init(&c);
vb2_nv_set(&c, VB2_NV_FIRMWARE_SETTINGS_RESET, 1);
TEST_EQ(vb2_nv_get(&c, VB2_NV_FIRMWARE_SETTINGS_RESET),
1, "Firmware settings forced reset");
vb2_nv_set(&c, VB2_NV_FIRMWARE_SETTINGS_RESET, 0);
vb2_nv_set(&c, VB2_NV_KERNEL_SETTINGS_RESET, 1);
TEST_EQ(vb2_nv_get(&c, VB2_NV_KERNEL_SETTINGS_RESET),
1, "Kernel settings forced reset");
vb2_nv_set(&c, VB2_NV_KERNEL_SETTINGS_RESET, 0);
/* Get/set an invalid field */
vb2_nv_init(&c);
vb2_nv_set(&c, -1, 1);
TEST_EQ(vb2_nv_get(&c, -1), 0, "Get invalid setting");
/* Test other fields */
vb2_nv_init(&c);
for (vnf = nvfields; vnf->desc; vnf++) {
TEST_EQ(vb2_nv_get(&c, vnf->param), vnf->default_value,
vnf->desc);
vb2_nv_set(&c, vnf->param, vnf->test_value);
TEST_EQ(vb2_nv_get(&c, vnf->param), vnf->test_value, vnf->desc);
vb2_nv_set(&c, vnf->param, vnf->test_value2);
TEST_EQ(vb2_nv_get(&c, vnf->param), vnf->test_value2,
vnf->desc);
}
/* None of those changes should have caused a reset to defaults */
vb2_nv_init(&c);
TEST_EQ(vb2_nv_get(&c, VB2_NV_FIRMWARE_SETTINGS_RESET),
0, "Firmware settings are still clear");
TEST_EQ(vb2_nv_get(&c, VB2_NV_KERNEL_SETTINGS_RESET),
0, "Kernel settings are still clear");
/* Writing identical settings doesn't cause the CRC to regenerate */
c.flags = 0;
vb2_nv_init(&c);
test_changed(&c, 0, "No regen CRC on open");
for (vnf = nvfields; vnf->desc; vnf++)
vb2_nv_set(&c, vnf->param, vnf->test_value2);
test_changed(&c, 0, "No regen CRC if data not changed");
/* Test out-of-range fields mapping to defaults or failing */
vb2_nv_init(&c);
vb2_nv_set(&c, VB2_NV_TRY_COUNT, 16);
TEST_EQ(vb2_nv_get(&c, VB2_NV_TRY_COUNT),
15, "Try b count out of range");
vb2_nv_set(&c, VB2_NV_RECOVERY_REQUEST, 0x101);
TEST_EQ(vb2_nv_get(&c, VB2_NV_RECOVERY_REQUEST),
VB2_RECOVERY_LEGACY, "Recovery request out of range");
vb2_nv_set(&c, VB2_NV_LOCALIZATION_INDEX, 0x102);
TEST_EQ(vb2_nv_get(&c, VB2_NV_LOCALIZATION_INDEX),
0, "Localization index out of range");
vb2_nv_set(&c, VB2_NV_FW_RESULT, VB2_FW_RESULT_UNKNOWN + 1);
vb2_nv_set(&c, VB2_NV_FW_RESULT, VB2_FW_RESULT_UNKNOWN + 100);
TEST_EQ(vb2_nv_get(&c, VB2_NV_FW_RESULT),
VB2_FW_RESULT_UNKNOWN, "Firmware result out of range");
}
int main(int argc, char* argv[])
{
nv_storage_test();
return gTestSuccess ? 0 : 255;
}
static void init_context_tests(void)
{
/* Use our own context struct so we can re-init it */
struct vb2_context c = {
.workbuf = workbuf,
.workbuf_size = sizeof(workbuf),
};
reset_common_data();
TEST_SUCC(vb2_init_context(&c), "Init context good");
TEST_EQ(c.workbuf_used, sizeof(struct vb2_shared_data),
"Init vbsd");
/* Don't re-init if used is non-zero */
c.workbuf_used = 200;
TEST_SUCC(vb2_init_context(&c), "Re-init context good");
TEST_EQ(c.workbuf_used, 200, "Didn't re-init");
/* Handle workbuf errors */
c.workbuf_used = 0;
c.workbuf_size = sizeof(struct vb2_shared_data) - 1;
TEST_EQ(vb2_init_context(&c),
VB2_ERROR_INITCTX_WORKBUF_SMALL, "Init too small");
c.workbuf_size = sizeof(workbuf);
/* Handle workbuf unaligned */
c.workbuf++;
TEST_EQ(vb2_init_context(&c),
VB2_ERROR_INITCTX_WORKBUF_ALIGN, "Init unaligned");
}
static void misc_tests(void)
{
struct vb2_workbuf wb;
reset_common_data();
cc.workbuf_used = 16;
vb2_workbuf_from_ctx(&cc, &wb);
TEST_PTR_EQ(wb.buf, workbuf + 16, "vb_workbuf_from_ctx() buf");
TEST_EQ(wb.size, cc.workbuf_size - 16, "vb_workbuf_from_ctx() size");
}
static void gbb_tests(void)
{
struct vb2_gbb_header gbb = {
.signature = {'$', 'G', 'B', 'B'},
.major_version = VB2_GBB_MAJOR_VER,
.minor_version = VB2_GBB_MINOR_VER,
.header_size = sizeof(struct vb2_gbb_header),
.flags = 0x1234,
.rootkey_offset = 240,
.rootkey_size = 1040,
};
struct vb2_gbb_header gbbdest;
TEST_EQ(sizeof(struct vb2_gbb_header),
EXPECTED_VB2_GBB_HEADER_SIZE,
"sizeof(struct vb2_gbb_header)");
reset_common_data();
/* Good contents */
mock_resource_index = VB2_RES_GBB;
mock_resource_ptr = &gbb;
mock_resource_size = sizeof(gbb);
TEST_SUCC(vb2_read_gbb_header(&cc, &gbbdest), "read gbb header good");
TEST_SUCC(memcmp(&gbb, &gbbdest, sizeof(gbb)), "read gbb contents");
mock_resource_index = VB2_RES_GBB + 1;
TEST_EQ(vb2_read_gbb_header(&cc, &gbbdest),
VB2_ERROR_EX_READ_RESOURCE_INDEX, "read gbb header missing");
mock_resource_index = VB2_RES_GBB;
gbb.signature[0]++;
TEST_EQ(vb2_read_gbb_header(&cc, &gbbdest),
VB2_ERROR_GBB_MAGIC, "read gbb header bad magic");
gbb.signature[0]--;
gbb.major_version = VB2_GBB_MAJOR_VER + 1;
TEST_EQ(vb2_read_gbb_header(&cc, &gbbdest),
VB2_ERROR_GBB_VERSION, "read gbb header major version");
gbb.major_version = VB2_GBB_MAJOR_VER;
gbb.minor_version = VB2_GBB_MINOR_VER + 1;
TEST_SUCC(vb2_read_gbb_header(&cc, &gbbdest),
"read gbb header minor++");
gbb.minor_version = 1;
TEST_EQ(vb2_read_gbb_header(&cc, &gbbdest),
VB2_ERROR_GBB_TOO_OLD, "read gbb header 1.1 fails");
gbb.minor_version = 0;
TEST_EQ(vb2_read_gbb_header(&cc, &gbbdest),
VB2_ERROR_GBB_TOO_OLD, "read gbb header 1.0 fails");
gbb.minor_version = VB2_GBB_MINOR_VER;
gbb.header_size--;
TEST_EQ(vb2_read_gbb_header(&cc, &gbbdest),
VB2_ERROR_GBB_HEADER_SIZE, "read gbb header size");
TEST_EQ(vb2_fw_parse_gbb(&cc),
VB2_ERROR_GBB_HEADER_SIZE, "parse gbb failure");
gbb.header_size++;
/* Parse GBB */
TEST_SUCC(vb2_fw_parse_gbb(&cc), "parse gbb");
TEST_EQ(sd->gbb_flags, gbb.flags, "gbb flags");
TEST_EQ(sd->gbb_rootkey_offset, gbb.rootkey_offset, "rootkey offset");
TEST_EQ(sd->gbb_rootkey_size, gbb.rootkey_size, "rootkey size");
/* Workbuf failure */
reset_common_data();
cc.workbuf_used = cc.workbuf_size - 4;
TEST_EQ(vb2_fw_parse_gbb(&cc),
VB2_ERROR_GBB_WORKBUF, "parse gbb no workbuf");
}
static void fail_tests(void)
{
/* Early fail (before even NV init) */
reset_common_data();
sd->status &= ~VB2_SD_STATUS_NV_INIT;
vb2_fail(&cc, 1, 2);
TEST_NEQ(sd->status & VB2_SD_STATUS_NV_INIT, 0, "vb2_fail inits NV");
TEST_EQ(vb2_nv_get(&cc, VB2_NV_RECOVERY_REQUEST),
1, "vb2_fail request");
TEST_EQ(vb2_nv_get(&cc, VB2_NV_RECOVERY_SUBCODE),
2, "vb2_fail subcode");
/* Repeated fail doesn't overwrite the error code */
vb2_fail(&cc, 3, 4);
TEST_EQ(vb2_nv_get(&cc, VB2_NV_RECOVERY_REQUEST),
1, "vb2_fail repeat");
TEST_EQ(vb2_nv_get(&cc, VB2_NV_RECOVERY_SUBCODE),
2, "vb2_fail repeat2");
/* Fail with other slot good doesn't trigger recovery */
reset_common_data();
vb2_nv_set(&cc, VB2_NV_TRY_COUNT, 3);
vb2_nv_set(&cc, VB2_NV_FW_RESULT, VB2_FW_RESULT_UNKNOWN);
sd->status |= VB2_SD_STATUS_CHOSE_SLOT;
sd->fw_slot = 0;
sd->last_fw_slot = 1;
sd->last_fw_result = VB2_FW_RESULT_UNKNOWN;
vb2_fail(&cc, 5, 6);
TEST_EQ(vb2_nv_get(&cc, VB2_NV_RECOVERY_REQUEST), 0, "vb2_failover");
TEST_EQ(vb2_nv_get(&cc, VB2_NV_FW_RESULT),
VB2_FW_RESULT_FAILURE, "vb2_fail this fw");
TEST_EQ(vb2_nv_get(&cc, VB2_NV_TRY_COUNT), 0, "vb2_fail use up tries");
TEST_EQ(vb2_nv_get(&cc, VB2_NV_TRY_NEXT), 1, "vb2_fail try other slot");
/* Fail with other slot already failing triggers recovery */
reset_common_data();
sd->status |= VB2_SD_STATUS_CHOSE_SLOT;
sd->fw_slot = 1;
sd->last_fw_slot = 0;
sd->last_fw_result = VB2_FW_RESULT_FAILURE;
vb2_fail(&cc, 7, 8);
TEST_EQ(vb2_nv_get(&cc, VB2_NV_RECOVERY_REQUEST), 7,
"vb2_fail both slots bad");
TEST_EQ(vb2_nv_get(&cc, VB2_NV_FW_RESULT),
VB2_FW_RESULT_FAILURE, "vb2_fail this fw");
TEST_EQ(vb2_nv_get(&cc, VB2_NV_TRY_NEXT), 0, "vb2_fail try other slot");
}