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VTS: fix VtsHalKeymasterV3_0Target issue

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Failed cases:
AttestationTest.RsaAttestation
AttestationTest.EcAttestation

Analysis:
The verify_attestation_record() in Keymaster_hidl_hal_test.cpp calls
parse_attestation_record() to set the value of att_challenge. It fails
to compare att_challenge with challenge by memcmp.
Because setToExternal() method uses buffer pointer to local variable
(record), not use memcpy to copy into itself buffer in
parse_attestation_record(). When it leaves the parse_attestation_record(),
we will get the att_challenge which is null buffer to compare with challenge
incorrectly.

Fix: use memcpy to copy the buffer.

Bug: 65039571
Test: build passed. VtsHalKeymasterV3_0Target -> PASSED: 106, FAILED: 0.
Change-Id: I700a9242cc9a5f4cb196b62860823601e4088531
Merged-In: I700a9242cc9a5f4cb196b62860823601e4088531
(cherry picked from 54ca32a130)

(cherry picked from commit 926a8e7440)
This commit is contained in:
Iris Chang
2017-09-14 15:23:18 +08:00
committed by Keun Soo Yim
parent 68d4dd6e85
commit af5fad4036
1 changed files with 6 additions and 4 deletions
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10
keymaster/3.0/vts/functional/attestation_record.cpp
View File

@@ -274,10 +274,12 @@ ErrorCode parse_attestation_record(const uint8_t* asn1_key_desc, size_t asn1_key
*keymaster_security_level =
static_cast<SecurityLevel>(ASN1_ENUMERATED_get(record->keymaster_security_level));
attestation_challenge->setToExternal(record->attestation_challenge->data,
record->attestation_challenge->length);
unique_id->setToExternal(record->unique_id->data, record->unique_id->length);
auto& chall = record->attestation_challenge;
attestation_challenge->resize(chall->length);
memcpy(attestation_challenge->data(), chall->data, chall->length);
auto& uid = record->unique_id;
unique_id->resize(uid->length);
memcpy(unique_id->data(), uid->data, uid->length);
ErrorCode error = extract_auth_list(record->software_enforced, software_enforced);
if (error != ErrorCode::OK) return error;