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");
}
/**
* Test valid and invalid signatures.
*/
static void test_signatures(const struct vb2_public_key *key)
{
uint8_t workbuf[VB2_VERIFY_DIGEST_WORKBUF_BYTES]
__attribute__ ((aligned (VB2_WORKBUF_ALIGN)));
uint8_t sig[RSA1024NUMBYTES];
struct vb2_workbuf wb;
int unexpected_success;
int i;
vb2_workbuf_init(&wb, workbuf, sizeof(workbuf));
/* The first test signature is valid. */
Memcpy(sig, signatures[0], sizeof(sig));
TEST_SUCC(vb2_rsa_verify_digest(key, sig, test_message_sha1_hash, &wb),
"RSA Padding Test valid sig");
/* All other signatures should fail verification. */
unexpected_success = 0;
for (i = 1; i < sizeof(signatures) / sizeof(signatures[0]); i++) {
Memcpy(sig, signatures[i], sizeof(sig));
if (!vb2_rsa_verify_digest(key, sig,
test_message_sha1_hash, &wb)) {
fprintf(stderr,
"RSA Padding Test vector %d FAILED!\n", i);
unexpected_success++;
}
}
TEST_EQ(unexpected_success, 0, "RSA Padding Test invalid sigs");
}
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 test_verify_keyblock(const struct vb2_public_key *public_key,
const struct vb2_private_key *private_key,
const struct vb2_packed_key *data_key)
{
uint8_t workbuf[VB2_KEY_BLOCK_VERIFY_WORKBUF_BYTES]
__attribute__ ((aligned (VB2_WORKBUF_ALIGN)));
struct vb2_workbuf wb;
struct vb2_keyblock *hdr;
struct vb2_keyblock *h;
uint32_t hsize;
vb2_workbuf_init(&wb, workbuf, sizeof(workbuf));
hdr = vb2_create_keyblock(data_key, private_key, 0x1234);
TEST_NEQ((size_t)hdr, 0, "vb2_verify_keyblock() prerequisites");
if (!hdr)
return;
hsize = hdr->keyblock_size;
h = (struct vb2_keyblock *)malloc(hsize + 2048);
memcpy(h, hdr, hsize);
TEST_SUCC(vb2_verify_keyblock(h, hsize, public_key, &wb),
"vb2_verify_keyblock() ok using key");
/* Failures in keyblock check also cause verify to fail */
memcpy(h, hdr, hsize);
TEST_EQ(vb2_verify_keyblock(h, hsize - 1, public_key, &wb),
VB2_ERROR_KEYBLOCK_SIZE, "vb2_verify_keyblock() check");
/* Check signature */
memcpy(h, hdr, hsize);
h->keyblock_signature.sig_size--;
resign_keyblock(h, private_key);
TEST_EQ(vb2_verify_keyblock(h, hsize, public_key, &wb),
VB2_ERROR_KEYBLOCK_SIG_INVALID,
"vb2_verify_keyblock() sig too small");
memcpy(h, hdr, hsize);
((uint8_t *)vb2_packed_key_data(&h->data_key))[0] ^= 0x34;
TEST_EQ(vb2_verify_keyblock(h, hsize, public_key, &wb),
VB2_ERROR_KEYBLOCK_SIG_INVALID,
"vb2_verify_keyblock() sig mismatch");
/*
* TODO: verify parser can support a bigger header (i.e., one where
* data_key.key_offset is bigger than expected).
*/
free(h);
free(hdr);
}
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 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 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;
}
/**
* Test other error conditions in vb2_rsa_verify_digest().
*/
static void test_verify_digest(struct vb2_public_key *key) {
uint8_t workbuf[VB2_VERIFY_DIGEST_WORKBUF_BYTES]
__attribute__ ((aligned (VB2_WORKBUF_ALIGN)));
uint8_t sig[RSA1024NUMBYTES];
struct vb2_workbuf wb;
enum vb2_signature_algorithm orig_key_alg = key->sig_alg;
vb2_workbuf_init(&wb, workbuf, sizeof(workbuf));
Memcpy(sig, signatures[0], sizeof(sig));
TEST_SUCC(vb2_rsa_verify_digest(key, sig, test_message_sha1_hash, &wb),
"vb2_rsa_verify_digest() good");
Memcpy(sig, signatures[0], sizeof(sig));
vb2_workbuf_init(&wb, workbuf, sizeof(sig) * 3 - 1);
TEST_EQ(vb2_rsa_verify_digest(key, sig, test_message_sha1_hash, &wb),
VB2_ERROR_RSA_VERIFY_WORKBUF,
"vb2_rsa_verify_digest() small workbuf");
vb2_workbuf_init(&wb, workbuf, sizeof(workbuf));
key->sig_alg = VB2_SIG_INVALID;
Memcpy(sig, signatures[0], sizeof(sig));
TEST_EQ(vb2_rsa_verify_digest(key, sig, test_message_sha1_hash, &wb),
VB2_ERROR_RSA_VERIFY_ALGORITHM,
"vb2_rsa_verify_digest() bad key alg");
key->sig_alg = orig_key_alg;
key->arrsize *= 2;
Memcpy(sig, signatures[0], sizeof(sig));
TEST_EQ(vb2_rsa_verify_digest(key, sig, test_message_sha1_hash, &wb),
VB2_ERROR_RSA_VERIFY_SIG_LEN,
"vb2_rsa_verify_digest() bad sig len");
key->arrsize /= 2;
/* Corrupt the signature near start and end */
Memcpy(sig, signatures[0], sizeof(sig));
sig[3] ^= 0x42;
TEST_EQ(vb2_rsa_verify_digest(key, sig, test_message_sha1_hash, &wb),
VB2_ERROR_RSA_PADDING, "vb2_rsa_verify_digest() bad sig");
Memcpy(sig, signatures[0], sizeof(sig));
sig[RSA1024NUMBYTES - 3] ^= 0x56;
TEST_EQ(vb2_rsa_verify_digest(key, sig, test_message_sha1_hash, &wb),
VB2_ERROR_RSA_PADDING, "vb2_rsa_verify_digest() bad sig end");
}
void sha256_tests(void)
{
uint8_t digest[VB2_SHA256_DIGEST_SIZE];
uint8_t *test_inputs[3];
int i;
test_inputs[0] = (uint8_t *) oneblock_msg;
test_inputs[1] = (uint8_t *) multiblock_msg1;
test_inputs[2] = (uint8_t *) long_msg;
for (i = 0; i < 3; i++) {
TEST_SUCC(vb2_digest(test_inputs[i],
strlen((char *)test_inputs[i]),
VB2_HASH_SHA256, digest, sizeof(digest)),
"vb2_digest() SHA256");
TEST_EQ(memcmp(digest, sha256_results[i], sizeof(digest)),
0, "SHA-256 digest");
}
TEST_EQ(vb2_digest(test_inputs[0], strlen((char *)test_inputs[0]),
VB2_HASH_SHA256, digest, sizeof(digest) - 1),
VB2_ERROR_SHA_FINALIZE_DIGEST_SIZE, "vb2_digest() too small");
}
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 keyblock_tests(const char *keys_dir)
{
struct vb2_public_key *pubk2048, *pubk4096, *pubk8192, pubkhash;
struct vb2_private_key *prik4096, *prik8192;
struct vb2_packed_key *pak, *pakgood;
struct vb2_keyblock *kb;
const struct vb2_private_key *prikhash;
const struct vb2_private_key *prik[2];
char fname[1024];
const char test_desc[] = "Test keyblock";
uint8_t workbuf[VB2_KEY_BLOCK_VERIFY_WORKBUF_BYTES]
__attribute__ ((aligned (VB2_WORKBUF_ALIGN)));
struct vb2_workbuf wb;
vb2_workbuf_init(&wb, workbuf, sizeof(workbuf));
/* Read keys */
sprintf(fname, "%s/key_rsa2048.keyb", keys_dir);
TEST_SUCC(vb2_public_key_read_keyb(&pubk2048, fname),
"Read public key 2");
vb2_public_key_set_desc(pubk2048, "Test RSA2048 public key");
pubk2048->hash_alg = VB2_HASH_SHA256;
sprintf(fname, "%s/key_rsa4096.keyb", keys_dir);
TEST_SUCC(vb2_public_key_read_keyb(&pubk4096, fname),
"Read public key 1");
vb2_public_key_set_desc(pubk4096, "Test RSA4096 public key");
pubk4096->hash_alg = VB2_HASH_SHA256;
sprintf(fname, "%s/key_rsa8192.keyb", keys_dir);
TEST_SUCC(vb2_public_key_read_keyb(&pubk8192, fname),
"Read public key 2");
vb2_public_key_set_desc(pubk8192, "Test RSA8192 public key");
pubk8192->hash_alg = VB2_HASH_SHA512;
sprintf(fname, "%s/key_rsa4096.pem", keys_dir);
TEST_SUCC(vb2_private_key_read_pem(&prik4096, fname),
"Read private key 2");
vb2_private_key_set_desc(prik4096, "Test RSA4096 private key");
prik4096->sig_alg = VB2_SIG_RSA4096;
prik4096->hash_alg = VB2_HASH_SHA256;
sprintf(fname, "%s/key_rsa8192.pem", keys_dir);
TEST_SUCC(vb2_private_key_read_pem(&prik8192, fname),
"Read private key 1");
vb2_private_key_set_desc(prik8192, "Test RSA8192 private key");
prik8192->sig_alg = VB2_SIG_RSA8192;
prik8192->hash_alg = VB2_HASH_SHA512;
TEST_SUCC(vb2_private_key_hash(&prikhash, VB2_HASH_SHA512),
"Create private hash key");
TEST_SUCC(vb2_public_key_hash(&pubkhash, VB2_HASH_SHA512),
"Create public hash key");
TEST_SUCC(vb2_public_key_pack(&pakgood, pubk2048), "Test packed key");
/* Sign a keyblock with one key */
prik[0] = prik4096;
TEST_SUCC(vb2_keyblock_create(&kb, pubk2048, prik, 1, 0x1234, NULL),
"Keyblock single");
TEST_PTR_NEQ(kb, NULL, " kb_ptr");
TEST_SUCC(vb2_verify_keyblock(kb, kb->c.total_size, pubk4096, &wb),
" verify");
TEST_EQ(strcmp(vb2_common_desc(kb), pubk2048->desc), 0, " desc");
TEST_EQ(kb->flags, 0x1234, " flags");
pak = (struct vb2_packed_key *)((uint8_t *)kb + kb->key_offset);
TEST_EQ(0, memcmp(pak, pakgood, pakgood->c.total_size), " data key");
free(kb);
/* Sign a keyblock with two keys */
prik[0] = prik8192;
prik[1] = prikhash;
TEST_SUCC(vb2_keyblock_create(&kb, pubk4096, prik, 2, 0, test_desc),
"Keyblock multiple");
TEST_SUCC(vb2_verify_keyblock(kb, kb->c.total_size, pubk8192, &wb),
" verify 1");
TEST_SUCC(vb2_verify_keyblock(kb, kb->c.total_size, &pubkhash, &wb),
" verify 2");
TEST_EQ(strcmp(vb2_common_desc(kb), test_desc), 0, " desc");
TEST_EQ(kb->flags, 0, " flags");
free(kb);
/* Test errors */
prik[0] = prik8192;
prik8192->hash_alg = VB2_HASH_INVALID;
TEST_EQ(vb2_keyblock_create(&kb, pubk4096, prik, 1, 0, NULL),
VB2_KEYBLOCK_CREATE_SIG_SIZE, "Keyblock bad sig size");
TEST_PTR_EQ(kb, NULL, " kb_ptr");
prik[0] = prik4096;
pubk4096->sig_alg = VB2_SIG_INVALID;
TEST_EQ(vb2_keyblock_create(&kb, pubk4096, prik, 1, 0, NULL),
VB2_KEYBLOCK_CREATE_DATA_KEY, "Keyblock bad data key");
/* Free keys */
free(pakgood);
vb2_public_key_free(pubk2048);
vb2_public_key_free(pubk4096);
vb2_public_key_free(pubk8192);
vb2_private_key_free(prik4096);
vb2_private_key_free(prik8192);
}
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 test_verify_fw_preamble(const VbPublicKey *public_key,
const VbPrivateKey *private_key,
const VbPublicKey *kernel_subkey)
{
struct vb2_fw_preamble *hdr;
struct vb2_fw_preamble *h;
struct vb2_public_key rsa;
uint8_t workbuf[VB2_VERIFY_FIRMWARE_PREAMBLE_WORKBUF_BYTES]
__attribute__ ((aligned (VB2_WORKBUF_ALIGN)));
struct vb2_workbuf wb;
uint32_t hsize;
vb2_workbuf_init(&wb, workbuf, sizeof(workbuf));
/* Create a dummy signature */
VbSignature *body_sig = SignatureAlloc(56, 78);
TEST_SUCC(vb2_unpack_key(&rsa, (uint8_t *)public_key,
public_key->key_offset + public_key->key_size),
"vb2_verify_fw_preamble() prereq key");
hdr = (struct vb2_fw_preamble *)
CreateFirmwarePreamble(0x1234, kernel_subkey, body_sig,
private_key, 0x5678);
TEST_PTR_NEQ(hdr, NULL,
"VerifyFirmwarePreamble() prereq test preamble");
if (!hdr)
return;
hsize = (uint32_t) hdr->preamble_size;
h = (struct vb2_fw_preamble *)malloc(hsize + 16384);
Memcpy(h, hdr, hsize);
TEST_SUCC(vb2_verify_fw_preamble(h, hsize, &rsa, &wb),
"vb2_verify_fw_preamble() ok using key");
Memcpy(h, hdr, hsize);
TEST_EQ(vb2_verify_fw_preamble(h, 4, &rsa, &wb),
VB2_ERROR_PREAMBLE_TOO_SMALL_FOR_HEADER,
"vb2_verify_fw_preamble() size tiny");
Memcpy(h, hdr, hsize);
TEST_EQ(vb2_verify_fw_preamble(h, hsize - 1, &rsa, &wb),
VB2_ERROR_PREAMBLE_SIZE,
"vb2_verify_fw_preamble() size--");
/* Buffer is allowed to be bigger than preamble */
Memcpy(h, hdr, hsize);
TEST_SUCC(vb2_verify_fw_preamble(h, hsize + 1, &rsa, &wb),
"vb2_verify_fw_preamble() size++");
/* Care about major version but not minor */
Memcpy(h, hdr, hsize);
h->header_version_major++;
resign_fw_preamble(h, private_key);
TEST_EQ(vb2_verify_fw_preamble(h, hsize, &rsa, &wb),
VB2_ERROR_PREAMBLE_HEADER_VERSION
, "vb2_verify_fw_preamble() major++");
Memcpy(h, hdr, hsize);
h->header_version_major--;
resign_fw_preamble(h, private_key);
TEST_EQ(vb2_verify_fw_preamble(h, hsize, &rsa, &wb),
VB2_ERROR_PREAMBLE_HEADER_VERSION,
"vb2_verify_fw_preamble() major--");
Memcpy(h, hdr, hsize);
h->header_version_minor++;
resign_fw_preamble(h, private_key);
TEST_SUCC(vb2_verify_fw_preamble(h, hsize, &rsa, &wb),
"vb2_verify_fw_preamble() minor++");
Memcpy(h, hdr, hsize);
h->header_version_minor--;
resign_fw_preamble(h, private_key);
TEST_EQ(vb2_verify_fw_preamble(h, hsize, &rsa, &wb),
VB2_ERROR_PREAMBLE_HEADER_OLD,
"vb2_verify_fw_preamble() 2.0 not supported");
/* Check signature */
Memcpy(h, hdr, hsize);
h->preamble_signature.sig_offset = hsize;
resign_fw_preamble(h, private_key);
TEST_EQ(vb2_verify_fw_preamble(h, hsize, &rsa, &wb),
VB2_ERROR_PREAMBLE_SIG_OUTSIDE,
"vb2_verify_fw_preamble() sig off end");
Memcpy(h, hdr, hsize);
h->preamble_signature.sig_size--;
resign_fw_preamble(h, private_key);
TEST_EQ(vb2_verify_fw_preamble(h, hsize, &rsa, &wb),
VB2_ERROR_PREAMBLE_SIG_INVALID,
"vb2_verify_fw_preamble() sig too small");
Memcpy(h, hdr, hsize);
((uint8_t *)vb2_packed_key_data(&h->kernel_subkey))[0] ^= 0x34;
TEST_EQ(vb2_verify_fw_preamble(h, hsize, &rsa, &wb),
VB2_ERROR_PREAMBLE_SIG_INVALID,
"vb2_verify_fw_preamble() sig mismatch");
/* Check that we signed header, kernel subkey, and body sig */
Memcpy(h, hdr, hsize);
h->preamble_signature.data_size = 4;
h->kernel_subkey.key_offset = 0;
h->kernel_subkey.key_size = 0;
h->body_signature.sig_offset = 0;
h->body_signature.sig_size = 0;
resign_fw_preamble(h, private_key);
TEST_EQ(vb2_verify_fw_preamble(h, hsize, &rsa, &wb),
VB2_ERROR_PREAMBLE_SIGNED_TOO_LITTLE,
"vb2_verify_fw_preamble() didn't sign header");
Memcpy(h, hdr, hsize);
h->kernel_subkey.key_offset = hsize;
resign_fw_preamble(h, private_key);
TEST_EQ(vb2_verify_fw_preamble(h, hsize, &rsa, &wb),
VB2_ERROR_PREAMBLE_KERNEL_SUBKEY_OUTSIDE,
"vb2_verify_fw_preamble() kernel subkey off end");
Memcpy(h, hdr, hsize);
h->body_signature.sig_offset = hsize;
resign_fw_preamble(h, private_key);
TEST_EQ(vb2_verify_fw_preamble(h, hsize, &rsa, &wb),
VB2_ERROR_PREAMBLE_BODY_SIG_OUTSIDE,
"vb2_verify_fw_preamble() body sig off end");
/* TODO: verify with extra padding at end of header. */
free(h);
free(hdr);
}
static void test_verify_keyblock(const VbPublicKey *public_key,
const VbPrivateKey *private_key,
const VbPublicKey *data_key)
{
uint8_t workbuf[VB2_KEY_BLOCK_VERIFY_WORKBUF_BYTES]
__attribute__ ((aligned (VB2_WORKBUF_ALIGN)));
struct vb2_workbuf wb;
struct vb2_public_key key;
struct vb2_keyblock *hdr;
struct vb2_keyblock *h;
uint32_t hsize;
vb2_workbuf_init(&wb, workbuf, sizeof(workbuf));
/* Unpack public key */
TEST_SUCC(vb2_unpack_key(&key, (uint8_t *)public_key,
public_key->key_offset + public_key->key_size),
"vb2_verify_keyblock public key");
hdr = (struct vb2_keyblock *)
KeyBlockCreate(data_key, private_key, 0x1234);
TEST_NEQ((size_t)hdr, 0, "vb2_verify_keyblock() prerequisites");
if (!hdr)
return;
hsize = hdr->keyblock_size;
h = (struct vb2_keyblock *)malloc(hsize + 2048);
Memcpy(h, hdr, hsize);
TEST_SUCC(vb2_verify_keyblock(h, hsize, &key, &wb),
"vb2_verify_keyblock() ok using key");
Memcpy(h, hdr, hsize);
TEST_EQ(vb2_verify_keyblock(h, hsize - 1, &key, &wb),
VB2_ERROR_KEYBLOCK_SIZE, "vb2_verify_keyblock() size--");
/* Buffer is allowed to be bigger than keyblock */
Memcpy(h, hdr, hsize);
TEST_SUCC(vb2_verify_keyblock(h, hsize + 1, &key, &wb),
"vb2_verify_keyblock() size++");
Memcpy(h, hdr, hsize);
h->magic[0] &= 0x12;
TEST_EQ(vb2_verify_keyblock(h, hsize, &key, &wb),
VB2_ERROR_KEYBLOCK_MAGIC, "vb2_verify_keyblock() magic");
/* Care about major version but not minor */
Memcpy(h, hdr, hsize);
h->header_version_major++;
resign_keyblock(h, private_key);
TEST_EQ(vb2_verify_keyblock(h, hsize, &key, &wb),
VB2_ERROR_KEYBLOCK_HEADER_VERSION,
"vb2_verify_keyblock() major++");
Memcpy(h, hdr, hsize);
h->header_version_major--;
resign_keyblock(h, private_key);
TEST_EQ(vb2_verify_keyblock(h, hsize, &key, &wb),
VB2_ERROR_KEYBLOCK_HEADER_VERSION,
"vb2_verify_keyblock() major--");
Memcpy(h, hdr, hsize);
h->header_version_minor++;
resign_keyblock(h, private_key);
TEST_SUCC(vb2_verify_keyblock(h, hsize, &key, &wb),
"vb2_verify_keyblock() minor++");
Memcpy(h, hdr, hsize);
h->header_version_minor--;
resign_keyblock(h, private_key);
TEST_SUCC(vb2_verify_keyblock(h, hsize, &key, &wb),
"vb2_verify_keyblock() minor--");
/* Check signature */
Memcpy(h, hdr, hsize);
h->keyblock_signature.sig_offset = hsize;
resign_keyblock(h, private_key);
TEST_EQ(vb2_verify_keyblock(h, hsize, &key, &wb),
VB2_ERROR_KEYBLOCK_SIG_OUTSIDE,
"vb2_verify_keyblock() sig off end");
Memcpy(h, hdr, hsize);
h->keyblock_signature.sig_size--;
resign_keyblock(h, private_key);
TEST_EQ(vb2_verify_keyblock(h, hsize, &key, &wb),
VB2_ERROR_KEYBLOCK_SIG_INVALID,
"vb2_verify_keyblock() sig too small");
Memcpy(h, hdr, hsize);
((uint8_t *)vb2_packed_key_data(&h->data_key))[0] ^= 0x34;
TEST_EQ(vb2_verify_keyblock(h, hsize, &key, &wb),
VB2_ERROR_KEYBLOCK_SIG_INVALID,
"vb2_verify_keyblock() sig mismatch");
Memcpy(h, hdr, hsize);
h->keyblock_signature.data_size = h->keyblock_size + 1;
TEST_EQ(vb2_verify_keyblock(h, hsize, &key, &wb),
VB2_ERROR_KEYBLOCK_SIGNED_TOO_MUCH,
"vb2_verify_keyblock() sig data past end of block");
/* Check that we signed header and data key */
Memcpy(h, hdr, hsize);
h->keyblock_signature.data_size = 4;
h->data_key.key_offset = 0;
h->data_key.key_size = 0;
resign_keyblock(h, private_key);
TEST_EQ(vb2_verify_keyblock(h, hsize, &key, &wb),
VB2_ERROR_KEYBLOCK_SIGNED_TOO_LITTLE,
"vb2_verify_keyblock() didn't sign header");
Memcpy(h, hdr, hsize);
h->data_key.key_offset = hsize;
resign_keyblock(h, private_key);
TEST_EQ(vb2_verify_keyblock(h, hsize, &key, &wb),
VB2_ERROR_KEYBLOCK_DATA_KEY_OUTSIDE,
"vb2_verify_keyblock() data key off end");
/* Corner cases for error checking */
TEST_EQ(vb2_verify_keyblock(NULL, 4, &key, &wb),
VB2_ERROR_KEYBLOCK_TOO_SMALL_FOR_HEADER,
"vb2_verify_keyblock size too small");
/*
* TODO: verify parser can support a bigger header (i.e., one where
* data_key.key_offset is bigger than expected).
*/
free(h);
free(hdr);
}
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 test_check_keyblock(const struct vb2_public_key *public_key,
const struct vb2_private_key *private_key,
const struct vb2_packed_key *data_key)
{
struct vb2_keyblock *hdr;
struct vb2_keyblock *h;
struct vb2_signature *sig;
uint32_t hsize;
hdr = vb2_create_keyblock(data_key, private_key, 0x1234);
TEST_NEQ((size_t)hdr, 0, "vb2_verify_keyblock() prerequisites");
if (!hdr)
return;
hsize = hdr->keyblock_size;
h = (struct vb2_keyblock *)malloc(hsize + 2048);
sig = &h->keyblock_signature;
memcpy(h, hdr, hsize);
TEST_SUCC(vb2_check_keyblock(h, hsize, sig),
"vb2_check_keyblock() ok");
memcpy(h, hdr, hsize);
TEST_EQ(vb2_check_keyblock(h, hsize - 1, sig),
VB2_ERROR_KEYBLOCK_SIZE, "vb2_check_keyblock() size--");
/* Buffer is allowed to be bigger than keyblock */
memcpy(h, hdr, hsize);
TEST_SUCC(vb2_check_keyblock(h, hsize + 1, sig),
"vb2_check_keyblock() size++");
memcpy(h, hdr, hsize);
h->magic[0] &= 0x12;
TEST_EQ(vb2_check_keyblock(h, hsize, sig),
VB2_ERROR_KEYBLOCK_MAGIC, "vb2_check_keyblock() magic");
/* Care about major version but not minor */
memcpy(h, hdr, hsize);
h->header_version_major++;
resign_keyblock(h, private_key);
TEST_EQ(vb2_check_keyblock(h, hsize, sig),
VB2_ERROR_KEYBLOCK_HEADER_VERSION,
"vb2_check_keyblock() major++");
memcpy(h, hdr, hsize);
h->header_version_major--;
resign_keyblock(h, private_key);
TEST_EQ(vb2_check_keyblock(h, hsize, sig),
VB2_ERROR_KEYBLOCK_HEADER_VERSION,
"vb2_check_keyblock() major--");
memcpy(h, hdr, hsize);
h->header_version_minor++;
resign_keyblock(h, private_key);
TEST_SUCC(vb2_check_keyblock(h, hsize, sig),
"vb2_check_keyblock() minor++");
memcpy(h, hdr, hsize);
h->header_version_minor--;
resign_keyblock(h, private_key);
TEST_SUCC(vb2_check_keyblock(h, hsize, sig),
"vb2_check_keyblock() minor--");
/* Check signature */
memcpy(h, hdr, hsize);
h->keyblock_signature.sig_offset = hsize;
resign_keyblock(h, private_key);
TEST_EQ(vb2_check_keyblock(h, hsize, sig),
VB2_ERROR_KEYBLOCK_SIG_OUTSIDE,
"vb2_check_keyblock() sig off end");
memcpy(h, hdr, hsize);
h->keyblock_signature.data_size = h->keyblock_size + 1;
TEST_EQ(vb2_check_keyblock(h, hsize, sig),
VB2_ERROR_KEYBLOCK_SIGNED_TOO_MUCH,
"vb2_check_keyblock() sig data past end of block");
/* Check that we signed header and data key */
memcpy(h, hdr, hsize);
h->keyblock_signature.data_size = 4;
h->data_key.key_offset = 0;
h->data_key.key_size = 0;
resign_keyblock(h, private_key);
TEST_EQ(vb2_check_keyblock(h, hsize, sig),
VB2_ERROR_KEYBLOCK_SIGNED_TOO_LITTLE,
"vb2_check_keyblock() didn't sign header");
memcpy(h, hdr, hsize);
h->data_key.key_offset = hsize;
resign_keyblock(h, private_key);
TEST_EQ(vb2_check_keyblock(h, hsize, sig),
VB2_ERROR_KEYBLOCK_DATA_KEY_OUTSIDE,
"vb2_check_keyblock() data key off end");
/* Corner cases for error checking */
TEST_EQ(vb2_check_keyblock(NULL, 4, sig),
VB2_ERROR_KEYBLOCK_TOO_SMALL_FOR_HEADER,
"vb2_check_keyblock size too small");
/*
* TODO: verify parser can support a bigger header (i.e., one where
* data_key.key_offset is bigger than expected).
*/
free(h);
free(hdr);
}
static void test_verify_kernel_preamble(
const struct vb2_packed_key *public_key,
const struct vb2_private_key *private_key)
{
struct vb2_public_key rsa;
// TODO: how many workbuf bytes?
uint8_t workbuf[VB2_VERIFY_FIRMWARE_PREAMBLE_WORKBUF_BYTES]
__attribute__ ((aligned (VB2_WORKBUF_ALIGN)));
struct vb2_workbuf wb;
uint32_t hsize;
vb2_workbuf_init(&wb, workbuf, sizeof(workbuf));
/* Create a dummy signature */
struct vb2_signature *body_sig = vb2_alloc_signature(56, 0x214000);
TEST_SUCC(vb2_unpack_key(&rsa, public_key),
"vb2_verify_kernel_preamble() prereq key");
struct vb2_kernel_preamble *hdr =
vb2_create_kernel_preamble(0x1234, 0x100000, 0x300000, 0x4000,
body_sig, 0x304000, 0x10000, 0, 0,
private_key);
TEST_PTR_NEQ(hdr, NULL,
"vb2_verify_kernel_preamble() prereq test preamble");
if (!hdr) {
free(body_sig);
return;
}
hsize = (uint32_t) hdr->preamble_size;
struct vb2_kernel_preamble *h =
(struct vb2_kernel_preamble *)malloc(hsize + 16384);
memcpy(h, hdr, hsize);
TEST_SUCC(vb2_verify_kernel_preamble(h, hsize, &rsa, &wb),
"vb2_verify_kernel_preamble() ok using key");
memcpy(h, hdr, hsize);
TEST_EQ(vb2_verify_kernel_preamble(h, 4, &rsa, &wb),
VB2_ERROR_PREAMBLE_TOO_SMALL_FOR_HEADER,
"vb2_verify_kernel_preamble() size tiny");
memcpy(h, hdr, hsize);
TEST_EQ(vb2_verify_kernel_preamble(h, hsize - 1, &rsa, &wb),
VB2_ERROR_PREAMBLE_SIZE,
"vb2_verify_kernel_preamble() size--");
/* Buffer is allowed to be bigger than preamble */
memcpy(h, hdr, hsize);
TEST_SUCC(vb2_verify_kernel_preamble(h, hsize + 1, &rsa, &wb),
"vb2_verify_kernel_preamble() size++");
/* Care about major version but not minor */
memcpy(h, hdr, hsize);
h->header_version_major++;
resign_kernel_preamble(h, private_key);
TEST_EQ(vb2_verify_kernel_preamble(h, hsize, &rsa, &wb),
VB2_ERROR_PREAMBLE_HEADER_VERSION
, "vb2_verify_kernel_preamble() major++");
memcpy(h, hdr, hsize);
h->header_version_major--;
resign_kernel_preamble(h, private_key);
TEST_EQ(vb2_verify_kernel_preamble(h, hsize, &rsa, &wb),
VB2_ERROR_PREAMBLE_HEADER_VERSION,
"vb2_verify_kernel_preamble() major--");
memcpy(h, hdr, hsize);
h->header_version_minor++;
resign_kernel_preamble(h, private_key);
TEST_SUCC(vb2_verify_kernel_preamble(h, hsize, &rsa, &wb),
"vb2_verify_kernel_preamble() minor++");
/* Check signature */
memcpy(h, hdr, hsize);
h->preamble_signature.sig_offset = hsize;
resign_kernel_preamble(h, private_key);
TEST_EQ(vb2_verify_kernel_preamble(h, hsize, &rsa, &wb),
VB2_ERROR_PREAMBLE_SIG_OUTSIDE,
"vb2_verify_kernel_preamble() sig off end");
memcpy(h, hdr, hsize);
h->preamble_signature.sig_size--;
resign_kernel_preamble(h, private_key);
TEST_EQ(vb2_verify_kernel_preamble(h, hsize, &rsa, &wb),
VB2_ERROR_PREAMBLE_SIG_INVALID,
"vb2_verify_kernel_preamble() sig too small");
memcpy(h, hdr, hsize);
h->flags++;
TEST_EQ(vb2_verify_kernel_preamble(h, hsize, &rsa, &wb),
VB2_ERROR_PREAMBLE_SIG_INVALID,
"vb2_verify_kernel_preamble() sig mismatch");
/* Check that we signed header and body sig */
memcpy(h, hdr, hsize);
h->preamble_signature.data_size = 4;
h->body_signature.sig_offset = 0;
h->body_signature.sig_size = 0;
resign_kernel_preamble(h, private_key);
TEST_EQ(vb2_verify_kernel_preamble(h, hsize, &rsa, &wb),
VB2_ERROR_PREAMBLE_SIGNED_TOO_LITTLE,
"vb2_verify_kernel_preamble() didn't sign header");
memcpy(h, hdr, hsize);
h->body_signature.sig_offset = hsize;
resign_kernel_preamble(h, private_key);
TEST_EQ(vb2_verify_kernel_preamble(h, hsize, &rsa, &wb),
VB2_ERROR_PREAMBLE_BODY_SIG_OUTSIDE,
"vb2_verify_kernel_preamble() body sig off end");
/* Check bootloader inside signed body */
memcpy(h, hdr, hsize);
h->bootloader_address = h->body_load_address - 1;
resign_kernel_preamble(h, private_key);
TEST_EQ(vb2_verify_kernel_preamble(h, hsize, &rsa, &wb),
VB2_ERROR_PREAMBLE_BOOTLOADER_OUTSIDE,
"vb2_verify_kernel_preamble() bootloader before body");
memcpy(h, hdr, hsize);
h->bootloader_address = h->body_load_address +
h->body_signature.data_size + 1;
resign_kernel_preamble(h, private_key);
TEST_EQ(vb2_verify_kernel_preamble(h, hsize, &rsa, &wb),
VB2_ERROR_PREAMBLE_BOOTLOADER_OUTSIDE,
"vb2_verify_kernel_preamble() bootloader off end of body");
memcpy(h, hdr, hsize);
h->bootloader_address = h->body_load_address +
h->body_signature.data_size + 1;
h->bootloader_size = 0;
resign_kernel_preamble(h, private_key);
TEST_SUCC(vb2_verify_kernel_preamble(h, hsize, &rsa, &wb),
"vb2_verify_kernel_preamble() no bootloader");
/* Check vmlinuz inside signed body */
memcpy(h, hdr, hsize);
h->vmlinuz_header_address = h->body_load_address - 1;
resign_kernel_preamble(h, private_key);
TEST_EQ(vb2_verify_kernel_preamble(h, hsize, &rsa, &wb),
VB2_ERROR_PREAMBLE_VMLINUZ_HEADER_OUTSIDE,
"vb2_verify_kernel_preamble() vmlinuz_header before body");
memcpy(h, hdr, hsize);
h->vmlinuz_header_address = h->body_load_address +
h->body_signature.data_size + 1;
resign_kernel_preamble(h, private_key);
TEST_EQ(vb2_verify_kernel_preamble(h, hsize, &rsa, &wb),
VB2_ERROR_PREAMBLE_VMLINUZ_HEADER_OUTSIDE,
"vb2_verify_kernel_preamble() vmlinuz_header off end of body");
memcpy(h, hdr, hsize);
h->vmlinuz_header_address = h->body_load_address +
h->body_signature.data_size + 1;
h->vmlinuz_header_size = 0;
resign_kernel_preamble(h, private_key);
TEST_SUCC(vb2_verify_kernel_preamble(h, hsize, &rsa, &wb),
"vb2_verify_kernel_preamble() no vmlinuz_header");
/* TODO: verify with extra padding at end of header. */
free(h);
free(hdr);
free(body_sig);
}
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 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");
}
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");
}