static void tpm_clear_tests(void)
{
/* No clear request */
reset_common_data();
TEST_SUCC(vb2_check_tpm_clear(&cc), "no clear request");
TEST_EQ(mock_tpm_clear_called, 0, "tpm not cleared");
/* Successful request */
reset_common_data();
vb2_nv_set(&cc, VB2_NV_CLEAR_TPM_OWNER_REQUEST, 1);
TEST_SUCC(vb2_check_tpm_clear(&cc), "clear request");
TEST_EQ(vb2_nv_get(&cc, VB2_NV_CLEAR_TPM_OWNER_REQUEST),
0, "request cleared");
TEST_EQ(vb2_nv_get(&cc, VB2_NV_CLEAR_TPM_OWNER_DONE),
1, "done set");
TEST_EQ(mock_tpm_clear_called, 1, "tpm cleared");
/* Failed request */
reset_common_data();
mock_tpm_clear_retval = VB2_ERROR_EX_TPM_CLEAR_OWNER;
vb2_nv_set(&cc, VB2_NV_CLEAR_TPM_OWNER_REQUEST, 1);
TEST_EQ(vb2_check_tpm_clear(&cc),
VB2_ERROR_EX_TPM_CLEAR_OWNER, "clear failure");
TEST_EQ(vb2_nv_get(&cc, VB2_NV_CLEAR_TPM_OWNER_REQUEST),
0, "request cleared");
TEST_EQ(vb2_nv_get(&cc, VB2_NV_CLEAR_TPM_OWNER_DONE),
0, "done not set");
}
static void load_kernel_vblock_tests(void)
{
reset_common_data(FOR_PHASE1);
TEST_SUCC(vb2api_load_kernel_vblock(&cc), "load vblock good");
reset_common_data(FOR_PHASE1);
mock_load_kernel_keyblock_retval = VB2_ERROR_MOCK;
TEST_EQ(vb2api_load_kernel_vblock(&cc), VB2_ERROR_MOCK,
"load vblock bad keyblock");
reset_common_data(FOR_PHASE1);
mock_load_kernel_preamble_retval = VB2_ERROR_MOCK;
TEST_EQ(vb2api_load_kernel_vblock(&cc), VB2_ERROR_MOCK,
"load vblock bad preamble");
}
static void get_kernel_size_tests(void)
{
uint32_t offs, size;
reset_common_data(FOR_PHASE2);
offs = size = 0;
TEST_SUCC(vb2api_get_kernel_size(&cc, &offs, &size), "get size good");
TEST_EQ(offs, 0x10000, " offset");
TEST_EQ(size, sizeof(kernel_data), " size");
/* Don't need to pass pointers */
reset_common_data(FOR_PHASE2);
TEST_SUCC(vb2api_get_kernel_size(&cc, NULL, NULL), "get size null");
reset_common_data(FOR_PHASE2);
sd->workbuf_preamble_size = 0;
TEST_EQ(vb2api_get_kernel_size(&cc, &offs, &size),
VB2_ERROR_API_GET_KERNEL_SIZE_PREAMBLE,
"get size no preamble");
}
static void verify_kernel_data_tests(void)
{
reset_common_data(FOR_PHASE2);
TEST_SUCC(vb2api_verify_kernel_data(&cc, kernel_data, sizeof(kernel_data)),
"verify data good");
reset_common_data(FOR_PHASE2);
sd->workbuf_preamble_size = 0;
TEST_EQ(vb2api_verify_kernel_data(&cc, kernel_data, sizeof(kernel_data)),
VB2_ERROR_API_VERIFY_KDATA_PREAMBLE, "verify no preamble");
reset_common_data(FOR_PHASE2);
TEST_EQ(vb2api_verify_kernel_data(&cc, kernel_data, sizeof(kernel_data) + 1),
VB2_ERROR_API_VERIFY_KDATA_SIZE, "verify size");
reset_common_data(FOR_PHASE2);
cc.workbuf_used = cc.workbuf_size - sizeof(struct vb2_digest_context) + 1;
TEST_EQ(vb2api_verify_kernel_data(&cc, kernel_data, sizeof(kernel_data)),
VB2_ERROR_API_VERIFY_KDATA_WORKBUF, "verify workbuf");
reset_common_data(FOR_PHASE2);
sd->workbuf_data_key_size = 0;
TEST_EQ(vb2api_verify_kernel_data(&cc, kernel_data, sizeof(kernel_data)),
VB2_ERROR_API_VERIFY_KDATA_KEY, "verify no key");
reset_common_data(FOR_PHASE2);
mock_unpack_key_retval = VB2_ERROR_MOCK;
TEST_EQ(vb2api_verify_kernel_data(&cc, kernel_data, sizeof(kernel_data)),
VB2_ERROR_MOCK, "verify unpack key");
reset_common_data(FOR_PHASE2);
kdkey->algorithm = VB2_ALG_COUNT;
TEST_EQ(vb2api_verify_kernel_data(&cc, kernel_data, sizeof(kernel_data)),
VB2_ERROR_SHA_INIT_ALGORITHM, "verify hash init");
reset_common_data(FOR_PHASE2);
cc.workbuf_used = cc.workbuf_size - sizeof(struct vb2_digest_context) - 4;
TEST_EQ(vb2api_verify_kernel_data(&cc, kernel_data, sizeof(kernel_data)),
VB2_ERROR_API_CHECK_HASH_WORKBUF_DIGEST, "verify hash workbuf");
reset_common_data(FOR_PHASE2);
kernel_data[3] ^= 0xd0;
TEST_EQ(vb2api_verify_kernel_data(&cc, kernel_data, sizeof(kernel_data)),
VB2_ERROR_VDATA_VERIFY_DIGEST, "verify hash digest");
kernel_data[3] ^= 0xd0;
}
static void recovery_tests(void)
{
/* No recovery */
reset_common_data();
vb2_check_recovery(&cc);
TEST_EQ(sd->recovery_reason, 0, "No recovery reason");
TEST_EQ(sd->flags & VB2_SD_FLAG_MANUAL_RECOVERY,
0, "Not manual recovery");
TEST_EQ(cc.flags & VB2_CONTEXT_RECOVERY_MODE,
0, "Not recovery mode");
/* From request */
reset_common_data();
vb2_nv_set(&cc, VB2_NV_RECOVERY_REQUEST, 3);
vb2_check_recovery(&cc);
TEST_EQ(sd->recovery_reason, 3, "Recovery reason from request");
TEST_EQ(vb2_nv_get(&cc, VB2_NV_RECOVERY_REQUEST), 0, "NV cleared");
TEST_EQ(sd->flags & VB2_SD_FLAG_MANUAL_RECOVERY,
0, "Not manual recovery");
TEST_NEQ(cc.flags & VB2_CONTEXT_RECOVERY_MODE,
0, "Recovery mode");
/* From request, but already failed */
reset_common_data();
vb2_nv_set(&cc, VB2_NV_RECOVERY_REQUEST, 4);
sd->recovery_reason = 5;
vb2_check_recovery(&cc);
TEST_EQ(sd->recovery_reason, 5, "Recovery reason already failed");
TEST_EQ(vb2_nv_get(&cc, VB2_NV_RECOVERY_REQUEST),
0, "NV still cleared");
/* Override */
reset_common_data();
sd->recovery_reason = 6;
cc.flags |= VB2_CONTEXT_FORCE_RECOVERY_MODE;
vb2_check_recovery(&cc);
TEST_EQ(sd->recovery_reason, VB2_RECOVERY_RO_MANUAL,
"Recovery reason forced");
TEST_NEQ(sd->flags & VB2_SD_FLAG_MANUAL_RECOVERY,
0, "SD flag set");
}
static void phase3_tests(void)
{
uint32_t v;
reset_common_data(FOR_PHASE3);
TEST_SUCC(vb2api_kernel_phase3(&cc), "phase3 good");
vb2_secdatak_get(&cc, VB2_SECDATAK_VERSIONS, &v);
TEST_EQ(v, 0x20004, " version");
reset_common_data(FOR_PHASE3);
sd->kernel_version = 0x20001;
TEST_SUCC(vb2api_kernel_phase3(&cc), "phase3 no rollback");
vb2_secdatak_get(&cc, VB2_SECDATAK_VERSIONS, &v);
TEST_EQ(v, 0x20002, " version");
reset_common_data(FOR_PHASE3);
sd->flags &= ~VB2_SD_FLAG_KERNEL_SIGNED;
TEST_SUCC(vb2api_kernel_phase3(&cc), "phase3 unsigned kernel");
vb2_secdatak_get(&cc, VB2_SECDATAK_VERSIONS, &v);
TEST_EQ(v, 0x20002, " version");
reset_common_data(FOR_PHASE3);
cc.flags |= VB2_CONTEXT_RECOVERY_MODE;
TEST_SUCC(vb2api_kernel_phase3(&cc), "phase3 recovery");
vb2_secdatak_get(&cc, VB2_SECDATAK_VERSIONS, &v);
TEST_EQ(v, 0x20002, " version");
reset_common_data(FOR_PHASE3);
cc.flags &= ~VB2_CONTEXT_ALLOW_KERNEL_ROLL_FORWARD;
TEST_SUCC(vb2api_kernel_phase3(&cc), "phase3 no rollforward");
vb2_secdatak_get(&cc, VB2_SECDATAK_VERSIONS, &v);
TEST_EQ(v, 0x20002, " version");
reset_common_data(FOR_PHASE3);
sd->status &= ~VB2_SD_STATUS_SECDATAK_INIT;
TEST_EQ(vb2api_kernel_phase3(&cc),
VB2_ERROR_SECDATAK_SET_UNINITIALIZED, "phase3 set fail");
}
static void verify_preamble_tests(void)
{
struct vb2_fw_preamble *pre = &mock_vblock.p.pre;
int wb_used_before;
uint32_t v;
/* Test successful call */
reset_common_data(FOR_PREAMBLE);
wb_used_before = cc.workbuf_used;
TEST_SUCC(vb2_load_fw_preamble(&cc), "preamble good");
TEST_EQ(sd->fw_version, 0x20002, "combined version");
TEST_EQ(sd->workbuf_preamble_offset,
(wb_used_before + (VB2_WORKBUF_ALIGN - 1)) &
~(VB2_WORKBUF_ALIGN - 1),
"preamble offset");
TEST_EQ(sd->workbuf_preamble_size, pre->preamble_size, "preamble size");
TEST_EQ(cc.workbuf_used,
sd->workbuf_preamble_offset + sd->workbuf_preamble_size,
"workbuf used");
/* Expected failures */
reset_common_data(FOR_PREAMBLE);
sd->workbuf_data_key_size = 0;
TEST_EQ(vb2_load_fw_preamble(&cc),
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(&cc),
VB2_ERROR_UNPACK_KEY_HASH_ALGORITHM,
"preamble unpack data key");
reset_common_data(FOR_PREAMBLE);
cc.workbuf_used = cc.workbuf_size - sizeof(struct vb2_fw_preamble) + 8;
TEST_EQ(vb2_load_fw_preamble(&cc),
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(&cc),
VB2_ERROR_EX_READ_RESOURCE_SIZE,
"preamble read header");
reset_common_data(FOR_PREAMBLE);
cc.workbuf_used = cc.workbuf_size - sizeof(mock_vblock.p) + 8;
TEST_EQ(vb2_load_fw_preamble(&cc),
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(&cc),
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(&cc),
VB2_ERROR_PREAMBLE_SIG_INVALID,
"preamble verify");
reset_common_data(FOR_PREAMBLE);
pre->firmware_version = 0x10000;
TEST_EQ(vb2_load_fw_preamble(&cc),
VB2_ERROR_FW_PREAMBLE_VERSION_RANGE,
"preamble version range");
reset_common_data(FOR_PREAMBLE);
pre->firmware_version = 1;
TEST_EQ(vb2_load_fw_preamble(&cc),
VB2_ERROR_FW_PREAMBLE_VERSION_ROLLBACK,
"preamble version rollback");
reset_common_data(FOR_PREAMBLE);
pre->firmware_version = 3;
TEST_SUCC(vb2_load_fw_preamble(&cc),
"preamble version roll forward");
vb2_secdata_get(&cc, VB2_SECDATA_VERSIONS, &v);
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(&cc),
"preamble version no roll forward 1");
vb2_secdata_get(&cc, VB2_SECDATA_VERSIONS, &v);
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(&cc),
"preamble version no roll forward 2");
vb2_secdata_get(&cc, VB2_SECDATA_VERSIONS, &v);
TEST_EQ(v, 0x20002, "no roll forward");
}
static void verify_keyblock_tests(void)
{
struct vb2_keyblock *kb = &mock_vblock.k.kb;
struct vb2_packed_key *k;
int wb_used_before;
/* Test successful call */
reset_common_data(FOR_KEYBLOCK);
wb_used_before = cc.workbuf_used;
TEST_SUCC(vb2_load_fw_keyblock(&cc), "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->workbuf_data_key_offset,
(wb_used_before + (VB2_WORKBUF_ALIGN - 1)) &
~(VB2_WORKBUF_ALIGN - 1),
"keyblock data key offset");
TEST_EQ(cc.workbuf_used,
sd->workbuf_data_key_offset + sd->workbuf_data_key_size,
"workbuf used");
/* Make sure data key was properly saved */
k = (struct vb2_packed_key *)(cc.workbuf + sd->workbuf_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(cc.workbuf + sd->workbuf_data_key_offset +
k->key_offset, mock_vblock.k.data_key_data,
sizeof(mock_vblock.k.data_key_data)),
0, "data key data");
TEST_EQ(cc.workbuf_used,
sd->workbuf_data_key_offset + sd->workbuf_data_key_size,
"workbuf used after");
/* Test failures */
reset_common_data(FOR_KEYBLOCK);
cc.workbuf_used = cc.workbuf_size - sd->gbb_rootkey_size + 8;
TEST_EQ(vb2_load_fw_keyblock(&cc),
VB2_ERROR_FW_KEYBLOCK_WORKBUF_ROOT_KEY,
"keyblock not enough workbuf for root key");
reset_common_data(FOR_KEYBLOCK);
sd->gbb_rootkey_size = sizeof(mock_gbb);
TEST_EQ(vb2_load_fw_keyblock(&cc),
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(&cc),
VB2_ERROR_UNPACK_KEY_SIG_ALGORITHM,
"keyblock unpack root key");
reset_common_data(FOR_KEYBLOCK);
cc.workbuf_used = cc.workbuf_size - sd->gbb_rootkey_size - 8;
TEST_EQ(vb2_load_fw_keyblock(&cc),
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(&cc),
VB2_ERROR_EX_READ_RESOURCE_INDEX,
"keyblock read keyblock header");
reset_common_data(FOR_KEYBLOCK);
cc.workbuf_used = cc.workbuf_size - sd->gbb_rootkey_size
- sizeof(struct vb2_keyblock);
TEST_EQ(vb2_load_fw_keyblock(&cc),
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(&cc),
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(&cc),
VB2_ERROR_KEYBLOCK_MAGIC,
"keyblock verify keyblock");
reset_common_data(FOR_KEYBLOCK);
kb->data_key.key_version = 0x10000;
TEST_EQ(vb2_load_fw_keyblock(&cc),
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(&cc),
VB2_ERROR_FW_KEYBLOCK_VERSION_ROLLBACK,
"keyblock rollback");
}
static void phase1_tests(void)
{
struct vb2_packed_key *k;
uint32_t old_preamble_offset;
/* Test successful call */
reset_common_data(FOR_PHASE1);
old_preamble_offset = sd->workbuf_preamble_offset;
TEST_SUCC(vb2api_kernel_phase1(&cc), "phase1 good");
TEST_EQ(sd->workbuf_preamble_size, 0, " no more fw preamble");
/* Make sure normal key was loaded */
TEST_EQ(sd->workbuf_kernel_key_offset, old_preamble_offset,
" workbuf key offset");
k = (struct vb2_packed_key *)
(cc.workbuf + sd->workbuf_kernel_key_offset);
TEST_EQ(sd->workbuf_kernel_key_size, k->key_offset + k->key_size,
" workbuf key size");
TEST_EQ(cc.workbuf_used, sd->workbuf_kernel_key_offset +
sd->workbuf_kernel_key_size, " workbuf used");
TEST_EQ(k->algorithm, 7, " key algorithm");
TEST_EQ(k->key_size, sizeof(fw_kernel_key_data), " key_size");
TEST_EQ(memcmp((uint8_t *)k + k->key_offset, fw_kernel_key_data,
k->key_size), 0, " key data");
TEST_EQ(sd->kernel_version_secdatak, 0x20002, " secdatak version");
/* Test successful call in recovery mode */
reset_common_data(FOR_PHASE1);
cc.flags |= VB2_CONTEXT_RECOVERY_MODE;
/* No preamble loaded in recovery mode */
cc.workbuf_used = old_preamble_offset = sd->workbuf_preamble_offset;
sd->workbuf_preamble_offset = sd->workbuf_preamble_size = 0;
TEST_SUCC(vb2api_kernel_phase1(&cc), "phase1 rec good");
TEST_EQ(sd->workbuf_preamble_size, 0, "no more fw preamble");
/* Make sure recovery key was loaded */
TEST_EQ(sd->workbuf_kernel_key_offset, old_preamble_offset,
" workbuf key offset");
k = (struct vb2_packed_key *)
(cc.workbuf + sd->workbuf_kernel_key_offset);
TEST_EQ(sd->workbuf_kernel_key_size, k->key_offset + k->key_size,
" workbuf key size");
TEST_EQ(cc.workbuf_used, sd->workbuf_kernel_key_offset +
sd->workbuf_kernel_key_size, " workbuf used");
TEST_EQ(k->algorithm, 11, " key algorithm");
TEST_EQ(k->key_size, sizeof(mock_gbb.recovery_key_data), " key_size");
TEST_EQ(memcmp((uint8_t *)k + k->key_offset,
mock_gbb.recovery_key_data, k->key_size), 0,
" key data");
TEST_EQ(sd->kernel_version_secdatak, 0x20002, " secdatak version");
/* Bad secdatak causes failure in normal mode only */
reset_common_data(FOR_PHASE1);
cc.secdatak[0] ^= 0x33;
TEST_EQ(vb2api_kernel_phase1(&cc), VB2_ERROR_SECDATAK_CRC,
"phase1 bad secdata");
reset_common_data(FOR_PHASE1);
cc.secdatak[0] ^= 0x33;
cc.flags |= VB2_CONTEXT_RECOVERY_MODE;
TEST_SUCC(vb2api_kernel_phase1(&cc), "phase1 bad secdata rec");
TEST_EQ(sd->kernel_version_secdatak, 0, " secdatak version");
/* Failures while reading recovery key */
reset_common_data(FOR_PHASE1);
cc.flags |= VB2_CONTEXT_RECOVERY_MODE;
cc.workbuf_used = cc.workbuf_size - sizeof(struct vb2_gbb_header) + 1;
TEST_EQ(vb2api_kernel_phase1(&cc), VB2_ERROR_GBB_WORKBUF,
"phase1 rec workbuf gbb header");
reset_common_data(FOR_PHASE1);
cc.flags |= VB2_CONTEXT_RECOVERY_MODE;
mock_read_gbb_header_retval = VB2_ERROR_MOCK;
TEST_EQ(vb2api_kernel_phase1(&cc), VB2_ERROR_MOCK,
"phase1 rec gbb read header");
reset_common_data(FOR_PHASE1);
cc.flags |= VB2_CONTEXT_RECOVERY_MODE;
mock_gbb.h.recovery_key_size = cc.workbuf_size - 1;
TEST_EQ(vb2api_kernel_phase1(&cc), VB2_ERROR_API_KPHASE1_WORKBUF_REC_KEY,
"phase1 rec workbuf key");
reset_common_data(FOR_PHASE1);
cc.flags |= VB2_CONTEXT_RECOVERY_MODE;
mock_read_res_fail_on_call = 1;
TEST_EQ(vb2api_kernel_phase1(&cc), VB2_ERROR_MOCK,
"phase1 rec gbb read key");
/* Failures while parsing subkey from firmware preamble */
reset_common_data(FOR_PHASE1);
sd->workbuf_preamble_size = 0;
TEST_EQ(vb2api_kernel_phase1(&cc), VB2_ERROR_API_KPHASE1_PREAMBLE,
"phase1 fw preamble");
}
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");
}
static void select_slot_tests(void)
{
/* Slot A */
reset_common_data();
TEST_SUCC(vb2_select_fw_slot(&cc), "select slot A");
TEST_EQ(vb2_nv_get(&cc, VB2_NV_FW_RESULT),
VB2_FW_RESULT_UNKNOWN, "result unknown");
TEST_NEQ(sd->status & VB2_SD_STATUS_CHOSE_SLOT, 0, "chose slot");
TEST_EQ(vb2_nv_get(&cc, VB2_NV_FW_TRIED), 0, "tried A");
TEST_EQ(sd->fw_slot, 0, "selected A");
TEST_EQ(cc.flags & VB2_CONTEXT_FW_SLOT_B, 0, "didn't choose B");
/* Slot B */
reset_common_data();
vb2_nv_set(&cc, VB2_NV_TRY_NEXT, 1);
TEST_SUCC(vb2_select_fw_slot(&cc), "select slot B");
TEST_EQ(vb2_nv_get(&cc, VB2_NV_FW_RESULT),
VB2_FW_RESULT_UNKNOWN, "result unknown");
TEST_NEQ(sd->status & VB2_SD_STATUS_CHOSE_SLOT, 0, "chose slot");
TEST_EQ(vb2_nv_get(&cc, VB2_NV_FW_TRIED), 1, "tried B");
TEST_EQ(sd->fw_slot, 1, "selected B");
TEST_NEQ(cc.flags & VB2_CONTEXT_FW_SLOT_B, 0, "ctx says choose B");
/* Slot A ran out of tries */
reset_common_data();
vb2_nv_set(&cc, VB2_NV_FW_RESULT, VB2_FW_RESULT_TRYING);
TEST_SUCC(vb2_select_fw_slot(&cc), "select slot A out of tries");
TEST_EQ(vb2_nv_get(&cc, VB2_NV_TRY_NEXT), 1, "try B next");
TEST_NEQ(sd->status & VB2_SD_STATUS_CHOSE_SLOT, 0, "chose slot");
TEST_EQ(vb2_nv_get(&cc, VB2_NV_FW_TRIED), 1, "tried B");
TEST_EQ(sd->fw_slot, 1, "selected B");
TEST_NEQ(cc.flags & VB2_CONTEXT_FW_SLOT_B, 0, "ctx says choose B");
/* Slot A ran out of tries, even with nofail active */
reset_common_data();
cc.flags |= VB2_CONTEXT_NOFAIL_BOOT;
vb2_nv_set(&cc, VB2_NV_FW_RESULT, VB2_FW_RESULT_TRYING);
TEST_SUCC(vb2_select_fw_slot(&cc), "select slot A out of tries");
TEST_EQ(vb2_nv_get(&cc, VB2_NV_TRY_NEXT), 1, "try B next");
TEST_NEQ(sd->status & VB2_SD_STATUS_CHOSE_SLOT, 0, "chose slot");
TEST_EQ(vb2_nv_get(&cc, VB2_NV_FW_TRIED), 1, "tried B");
TEST_EQ(sd->fw_slot, 1, "selected B");
TEST_NEQ(cc.flags & VB2_CONTEXT_FW_SLOT_B, 0, "ctx says choose B");
/* Slot A used up a try */
reset_common_data();
vb2_nv_set(&cc, VB2_NV_TRY_COUNT, 3);
TEST_SUCC(vb2_select_fw_slot(&cc), "try slot A");
TEST_EQ(vb2_nv_get(&cc, VB2_NV_FW_RESULT),
VB2_FW_RESULT_TRYING, "result trying");
TEST_NEQ(sd->status & VB2_SD_STATUS_CHOSE_SLOT, 0, "chose slot");
TEST_EQ(vb2_nv_get(&cc, VB2_NV_FW_TRIED), 0, "tried A");
TEST_EQ(sd->fw_slot, 0, "selected A");
TEST_EQ(cc.flags & VB2_CONTEXT_FW_SLOT_B, 0, "didn't choose B");
TEST_EQ(vb2_nv_get(&cc, VB2_NV_TRY_COUNT), 2, "tries decremented");
/* Slot A failed, but nofail active */
reset_common_data();
cc.flags |= VB2_CONTEXT_NOFAIL_BOOT;
vb2_nv_set(&cc, VB2_NV_TRY_COUNT, 3);
TEST_SUCC(vb2_select_fw_slot(&cc), "try slot A");
TEST_EQ(vb2_nv_get(&cc, VB2_NV_FW_RESULT),
VB2_FW_RESULT_TRYING, "result trying");
TEST_NEQ(sd->status & VB2_SD_STATUS_CHOSE_SLOT, 0, "chose slot");
TEST_EQ(vb2_nv_get(&cc, VB2_NV_FW_TRIED), 0, "tried A");
TEST_EQ(sd->fw_slot, 0, "selected A");
TEST_EQ(cc.flags & VB2_CONTEXT_FW_SLOT_B, 0, "didn't choose B");
TEST_EQ(vb2_nv_get(&cc, VB2_NV_TRY_COUNT), 3, "tries not decremented");
/* Tried/result get copied to the previous fields */
reset_common_data();
vb2_nv_set(&cc, VB2_NV_FW_TRIED, 0);
vb2_nv_set(&cc, VB2_NV_FW_RESULT, VB2_FW_RESULT_SUCCESS);
vb2_select_fw_slot(&cc);
TEST_EQ(vb2_nv_get(&cc, VB2_NV_FW_PREV_TRIED), 0, "prev A");
TEST_EQ(vb2_nv_get(&cc, VB2_NV_FW_PREV_RESULT), VB2_FW_RESULT_SUCCESS,
"prev success");
reset_common_data();
vb2_nv_set(&cc, VB2_NV_FW_TRIED, 1);
vb2_nv_set(&cc, VB2_NV_FW_RESULT, VB2_FW_RESULT_FAILURE);
vb2_select_fw_slot(&cc);
TEST_EQ(vb2_nv_get(&cc, VB2_NV_FW_PREV_TRIED), 1, "prev B");
TEST_EQ(vb2_nv_get(&cc, VB2_NV_FW_PREV_RESULT), VB2_FW_RESULT_FAILURE,
"prev failure");
}
static void dev_switch_tests(void)
{
uint32_t v;
/* Normal mode */
reset_common_data();
TEST_SUCC(vb2_check_dev_switch(&cc), "dev mode off");
TEST_EQ(sd->flags & VB2_SD_DEV_MODE_ENABLED, 0, "sd not in dev");
TEST_EQ(cc.flags & VB2_CONTEXT_DEVELOPER_MODE, 0, "ctx not in dev");
TEST_EQ(mock_tpm_clear_called, 0, "no tpm clear");
/* Dev mode */
reset_common_data();
vb2_secdata_set(&cc, VB2_SECDATA_FLAGS,
(VB2_SECDATA_FLAG_DEV_MODE |
VB2_SECDATA_FLAG_LAST_BOOT_DEVELOPER));
TEST_SUCC(vb2_check_dev_switch(&cc), "dev mode on");
TEST_NEQ(sd->flags & VB2_SD_DEV_MODE_ENABLED, 0, "sd in dev");
TEST_NEQ(cc.flags & VB2_CONTEXT_DEVELOPER_MODE, 0, "ctx in dev");
TEST_EQ(mock_tpm_clear_called, 0, "no tpm clear");
/* Any normal mode boot clears dev boot flags */
reset_common_data();
vb2_nv_set(&cc, VB2_NV_DEV_BOOT_USB, 1);
vb2_nv_set(&cc, VB2_NV_DEV_BOOT_LEGACY, 1);
vb2_nv_set(&cc, VB2_NV_DEV_BOOT_SIGNED_ONLY, 1);
vb2_nv_set(&cc, VB2_NV_DEV_BOOT_FASTBOOT_FULL_CAP, 1);
vb2_nv_set(&cc, VB2_NV_FASTBOOT_UNLOCK_IN_FW, 1);
TEST_SUCC(vb2_check_dev_switch(&cc), "dev mode off");
TEST_EQ(vb2_nv_get(&cc, VB2_NV_DEV_BOOT_USB),
0, "cleared dev boot usb");
TEST_EQ(vb2_nv_get(&cc, VB2_NV_DEV_BOOT_LEGACY),
0, "cleared dev boot legacy");
TEST_EQ(vb2_nv_get(&cc, VB2_NV_DEV_BOOT_SIGNED_ONLY),
0, "cleared dev boot signed only");
TEST_EQ(vb2_nv_get(&cc, VB2_NV_DEV_BOOT_FASTBOOT_FULL_CAP),
0, "cleared dev boot fastboot full cap");
TEST_EQ(vb2_nv_get(&cc, VB2_NV_FASTBOOT_UNLOCK_IN_FW),
0, "cleared dev boot fastboot unlock in fw");
/* Normal-dev transition clears TPM */
reset_common_data();
vb2_secdata_set(&cc, VB2_SECDATA_FLAGS, VB2_SECDATA_FLAG_DEV_MODE);
TEST_SUCC(vb2_check_dev_switch(&cc), "to dev mode");
TEST_EQ(mock_tpm_clear_called, 1, "tpm clear");
vb2_secdata_get(&cc, VB2_SECDATA_FLAGS, &v);
TEST_EQ(v, (VB2_SECDATA_FLAG_DEV_MODE |
VB2_SECDATA_FLAG_LAST_BOOT_DEVELOPER),
"last boot developer now");
/* Dev-normal transition clears TPM too */
reset_common_data();
vb2_secdata_set(&cc, VB2_SECDATA_FLAGS,
VB2_SECDATA_FLAG_LAST_BOOT_DEVELOPER);
TEST_SUCC(vb2_check_dev_switch(&cc), "from dev mode");
TEST_EQ(mock_tpm_clear_called, 1, "tpm clear");
vb2_secdata_get(&cc, VB2_SECDATA_FLAGS, &v);
TEST_EQ(v, 0, "last boot not developer now");
/* Disable dev mode */
reset_common_data();
vb2_secdata_set(&cc, VB2_SECDATA_FLAGS,
(VB2_SECDATA_FLAG_DEV_MODE |
VB2_SECDATA_FLAG_LAST_BOOT_DEVELOPER));
vb2_nv_set(&cc, VB2_NV_DISABLE_DEV_REQUEST, 1);
TEST_SUCC(vb2_check_dev_switch(&cc), "disable dev request");
TEST_EQ(sd->flags & VB2_SD_DEV_MODE_ENABLED, 0, "sd not in dev");
TEST_EQ(vb2_nv_get(&cc, VB2_NV_DISABLE_DEV_REQUEST),
0, "request cleared");
/* Force enabled by gbb */
reset_common_data();
sd->gbb_flags |= VB2_GBB_FLAG_FORCE_DEV_SWITCH_ON;
TEST_SUCC(vb2_check_dev_switch(&cc), "dev on via gbb");
TEST_NEQ(sd->flags & VB2_SD_DEV_MODE_ENABLED, 0, "sd in dev");
vb2_secdata_get(&cc, VB2_SECDATA_FLAGS, &v);
TEST_EQ(v, VB2_SECDATA_FLAG_LAST_BOOT_DEVELOPER,
"doesn't set dev on in secdata but does set last boot dev");
TEST_EQ(mock_tpm_clear_called, 1, "tpm clear");
/* Force enabled by ctx flag */
reset_common_data();
cc.flags |= VB2_CONTEXT_FORCE_DEVELOPER_MODE;
TEST_SUCC(vb2_check_dev_switch(&cc), "dev on via ctx flag");
TEST_NEQ(sd->flags & VB2_SD_DEV_MODE_ENABLED, 0, "sd in dev");
vb2_secdata_get(&cc, VB2_SECDATA_FLAGS, &v);
TEST_EQ(v, VB2_SECDATA_FLAG_LAST_BOOT_DEVELOPER,
"doesn't set dev on in secdata but does set last boot dev");
TEST_EQ(mock_tpm_clear_called, 1, "tpm clear");
/* Simulate clear owner failure */
reset_common_data();
vb2_secdata_set(&cc, VB2_SECDATA_FLAGS,
VB2_SECDATA_FLAG_LAST_BOOT_DEVELOPER);
mock_tpm_clear_retval = VB2_ERROR_EX_TPM_CLEAR_OWNER;
TEST_EQ(vb2_check_dev_switch(&cc),
VB2_ERROR_EX_TPM_CLEAR_OWNER, "tpm clear fail");
TEST_EQ(mock_tpm_clear_called, 1, "tpm clear");
vb2_secdata_get(&cc, VB2_SECDATA_FLAGS, &v);
TEST_EQ(v, VB2_SECDATA_FLAG_LAST_BOOT_DEVELOPER,
"last boot still developer");
TEST_EQ(vb2_nv_get(&cc, VB2_NV_RECOVERY_REQUEST),
VB2_RECOVERY_TPM_CLEAR_OWNER, "requests recovery");
TEST_EQ(vb2_nv_get(&cc, VB2_NV_RECOVERY_SUBCODE),
(uint8_t)VB2_ERROR_EX_TPM_CLEAR_OWNER, "recovery subcode");
}
