KeyMint VTS: skip device ID checks on GSI

Bug: 229356841
Test: VtsAidlKeyMintTargetTest
Change-Id: I3182bad5584c35df7b1eeb476dabb39d19fdf12c
(cherry picked from commit 555ba00c0f)
Merged-In: I3182bad5584c35df7b1eeb476dabb39d19fdf12c

security/keymint/aidl/vts/functional/AttestKeyTest.cpp

@@ -743,6 +743,11 @@ TEST_P(AttestKeyTest, AttestWithNonAttestKey) {
 }
 
 TEST_P(AttestKeyTest, EcdsaAttestationID) {
+    if (is_gsi_image()) {
+        // GSI sets up a standard set of device identifiers that may not match
+        // the device identifiers held by the device.
+        GTEST_SKIP() << "Test not applicable under GSI";
+    }
     // Create attestation key.
     AttestationKey attest_key;
     vector<KeyCharacteristics> attest_key_characteristics;

security/keymint/aidl/vts/functional/KeyMintAidlTestBase.cpp

@@ -17,6 +17,7 @@
 #include "KeyMintAidlTestBase.h"
 
 #include <chrono>
+#include <fstream>
 #include <unordered_set>
 #include <vector>
 
@@ -1460,6 +1461,11 @@ void verify_subject(const X509* cert,       //
     OPENSSL_free(cert_issuer);
 }
 
+bool is_gsi_image() {
+    std::ifstream ifs("/system/system_ext/etc/init/init.gsi.rc");
+    return ifs.good();
+}
+
 vector<uint8_t> build_serial_blob(const uint64_t serial_int) {
     BIGNUM_Ptr serial(BN_new());
     EXPECT_TRUE(BN_set_u64(serial.get(), serial_int));

security/keymint/aidl/vts/functional/KeyMintAidlTestBase.h

@@ -354,6 +354,9 @@ void add_tag_from_prop(AuthorizationSetBuilder* tags, TypedTag<TagType::BYTES, t
     }
 }
 
+// Indicate whether the test is running on a GSI image.
+bool is_gsi_image();
+
 vector<uint8_t> build_serial_blob(const uint64_t serial_int);
 void verify_subject(const X509* cert, const string& subject, bool self_signed);
 void verify_serial(X509* cert, const uint64_t expected_serial);

security/keymint/aidl/vts/functional/KeyMintTest.cpp

@@ -1949,6 +1949,11 @@ TEST_P(NewKeyGenerationTest, EcdsaAttestationTags) {
  * attestation extension.
  */
 TEST_P(NewKeyGenerationTest, EcdsaAttestationIdTags) {
+    if (is_gsi_image()) {
+        // GSI sets up a standard set of device identifiers that may not match
+        // the device identifiers held by the device.
+        GTEST_SKIP() << "Test not applicable under GSI";
+    }
     auto challenge = "hello";
     auto app_id = "foo";
     auto subject = "cert subj 2";