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// Copyright 2023 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "nearby_protocol.h"
#include "shared_test_util.h"
#include "np_cpp_test.h"
#include "gtest/gtest.h"
TEST_F(NpCppTest, V1SimpleTestCase) {
auto maybe_credential_slab = nearby_protocol::CredentialSlab::TryCreate();
ASSERT_TRUE(maybe_credential_slab.ok());
auto maybe_credential_book = nearby_protocol::CredentialBook::TryCreateFromSlab(maybe_credential_slab.value());
ASSERT_TRUE(maybe_credential_book.ok());
auto deserialize_result =
nearby_protocol::Deserializer::DeserializeAdvertisement(
V1AdvSimple, maybe_credential_book.value());
ASSERT_EQ(deserialize_result.GetKind(),
nearby_protocol::DeserializeAdvertisementResultKind::V1);
auto v1_adv = deserialize_result.IntoV1();
ASSERT_EQ(v1_adv.GetNumLegibleSections(), 1);
ASSERT_EQ(v1_adv.GetNumUndecryptableSections(), 0);
auto invalid = v1_adv.TryGetSection(1);
ASSERT_FALSE(invalid.ok());
ASSERT_TRUE(absl::IsOutOfRange(invalid.status()));
auto section = v1_adv.TryGetSection(0);
ASSERT_TRUE(section.ok());
ASSERT_EQ(section.value().GetIdentityKind(),
nearby_protocol::DeserializedV1IdentityKind::Plaintext);
ASSERT_EQ(section.value().NumberOfDataElements(), 1);
auto invalid_de = section.value().TryGetDataElement(1);
ASSERT_FALSE(invalid_de.ok());
ASSERT_TRUE(absl::IsOutOfRange(invalid_de.status()));
auto de = section.value().TryGetDataElement(0);
ASSERT_TRUE(de.ok());
ASSERT_EQ(de.value().GetDataElementTypeCode(), (uint8_t)5);
auto payload = de.value().GetPayload();
auto vec = payload.ToVector();
std::vector<uint8_t> expected{3};
ASSERT_EQ(vec, expected);
}
TEST_F(NpCppTest, TestV1AdvMoveConstructor) {
auto slab = nearby_protocol::CredentialSlab::TryCreate().value();
auto book = nearby_protocol::CredentialBook::TryCreateFromSlab(slab).value();
auto result = nearby_protocol::Deserializer::DeserializeAdvertisement(
V1AdvSimple, book);
ASSERT_EQ(result.GetKind(),
np_ffi::internal::DeserializeAdvertisementResultKind::V1);
auto adv = result.IntoV1();
// Now move the adv into a new value, and make sure its still valid
nearby_protocol::DeserializedV1Advertisement moved_adv(std::move(adv));
ASSERT_EQ(moved_adv.GetNumLegibleSections(), 1);
// trying to use the moved object should result in a use after free which
// triggers an abort
ASSERT_DEATH(
[[maybe_unused]] auto failure =
adv.GetNumLegibleSections(), // NOLINT(bugprone-use-after-move
"");
ASSERT_DEATH(
[[maybe_unused]] auto failure = adv.GetNumUndecryptableSections(), "");
ASSERT_DEATH([[maybe_unused]] auto failure = adv.TryGetSection(0), "");
// moving again should still preserve the moved state and also lead to an
// abort
nearby_protocol::DeserializedV1Advertisement moved_again(std::move(adv));
ASSERT_DEATH(
[[maybe_unused]] auto failure =
moved_again.GetNumLegibleSections(), // NOLINT(bugprone-use-after-move
"");
ASSERT_DEATH([[maybe_unused]] auto failure =
moved_again.GetNumUndecryptableSections(),
"");
ASSERT_DEATH([[maybe_unused]] auto failure = moved_again.TryGetSection(0),
"");
}
TEST_F(NpCppTest, TestV1AdvMoveAssignment) {
auto slab = nearby_protocol::CredentialSlab::TryCreate().value();
auto book = nearby_protocol::CredentialBook::TryCreateFromSlab(slab).value();
auto result = nearby_protocol::Deserializer::DeserializeAdvertisement(
V1AdvSimple, book);
ASSERT_EQ(result.GetKind(),
np_ffi::internal::DeserializeAdvertisementResultKind::V1);
auto adv = result.IntoV1();
// create a second result
auto another_result = nearby_protocol::Deserializer::DeserializeAdvertisement(
V1AdvSimple, book);
ASSERT_EQ(another_result.GetKind(),
np_ffi::internal::DeserializeAdvertisementResultKind::V1);
auto adv2 = another_result.IntoV1();
// move adv2 into adv, the original should be deallocated by assignment
adv2 = std::move(adv);
ASSERT_EQ(adv2.GetNumLegibleSections(), 1);
// original result should now be invalid, using it will trigger a use after
// free abort.
ASSERT_DEATH(
[[maybe_unused]] auto failure =
adv.GetNumLegibleSections(), // NOLINT(bugprone-use-after-move
"");
ASSERT_DEATH(
[[maybe_unused]] auto failure = adv.GetNumUndecryptableSections(), "");
ASSERT_DEATH([[maybe_unused]] auto failure = adv.TryGetSection(0), "");
// moving again should still lead to an error
auto moved_again = std::move(adv);
ASSERT_DEATH(
[[maybe_unused]] auto failure =
moved_again.GetNumLegibleSections(), // NOLINT(bugprone-use-after-move
"");
ASSERT_DEATH([[maybe_unused]] auto failure =
moved_again.GetNumUndecryptableSections(),
"");
ASSERT_DEATH([[maybe_unused]] auto failure = moved_again.TryGetSection(0),
"");
}
nearby_protocol::DeserializedV1Section
GetSection(nearby_protocol::CredentialBook &book) {
// Create the adv in this scope, so its de-allocated at the end of this call.
// The section should still be valid
auto v1_adv =
nearby_protocol::Deserializer::DeserializeAdvertisement(V1AdvSimple, book)
.IntoV1();
auto section = v1_adv.TryGetSection(0);
return section.value();
}
bool TryDeserializeNewV1Adv(nearby_protocol::CredentialBook &book) {
auto adv = nearby_protocol::Deserializer::DeserializeAdvertisement(
V1AdvSimple, book);
return adv.GetKind() ==
np_ffi::internal::DeserializeAdvertisementResultKind::V1;
}
TEST_F(NpCppTest, TestSectionOwnership) {
auto maybe_credential_slab = nearby_protocol::CredentialSlab::TryCreate();
ASSERT_TRUE(maybe_credential_slab.ok());
auto maybe_credential_book = nearby_protocol::CredentialBook::TryCreateFromSlab(maybe_credential_slab.value());
ASSERT_TRUE(maybe_credential_book.ok());
{
auto section = GetSection(maybe_credential_book.value());
ASSERT_EQ(section.GetIdentityKind(),
nearby_protocol::DeserializedV1IdentityKind::Plaintext);
ASSERT_EQ(section.NumberOfDataElements(), 1);
ASSERT_TRUE(section.TryGetDataElement(0).ok());
auto section2 = GetSection(maybe_credential_book.value());
ASSERT_EQ(section2.GetIdentityKind(),
nearby_protocol::DeserializedV1IdentityKind::Plaintext);
ASSERT_EQ(section2.NumberOfDataElements(), 1);
ASSERT_TRUE(section2.TryGetDataElement(0).ok());
ASSERT_FALSE(TryDeserializeNewV1Adv(maybe_credential_book.value()));
}
// now that the section has gone out of scope, deserializing a new adv should
// succeed
ASSERT_TRUE(TryDeserializeNewV1Adv(maybe_credential_book.value()));
}
/*
* Multiple sections are not supported in plaintext advertisements
* TODO Update the below test to use encrypted sections
TEST(NpCppTest, V1MultipleSections) {
auto maybe_credential_book = nearby_protocol::CredentialBook::TryCreate();
ASSERT_TRUE(maybe_credential_book.ok());
auto deserialize_result =
nearby_protocol::Deserializer::DeserializeAdvertisement(
V1AdvMultipleSections, maybe_credential_book.value());
ASSERT_EQ(deserialize_result.GetKind(),
nearby_protocol::DeserializeAdvertisementResultKind::V1);
auto v1_adv = deserialize_result.IntoV1();
ASSERT_EQ(v1_adv.GetNumLegibleSections(), 2);
ASSERT_EQ(v1_adv.GetNumUndecryptableSections(), 0);
auto invalid = v1_adv.TryGetSection(2);
ASSERT_FALSE(invalid.ok());
ASSERT_TRUE(absl::IsOutOfRange(invalid.status()));
auto section = v1_adv.TryGetSection(0);
ASSERT_TRUE(section.ok());
ASSERT_EQ(section.value().GetIdentityKind(),
nearby_protocol::DeserializedV1IdentityKind::Plaintext);
ASSERT_EQ(section.value().NumberOfDataElements(), 1);
auto invalid_de = section.value().TryGetDataElement(1);
ASSERT_FALSE(invalid_de.ok());
ASSERT_TRUE(absl::IsOutOfRange(invalid_de.status()));
auto de = section.value().TryGetDataElement(0);
ASSERT_TRUE(de.ok());
ASSERT_EQ(de.value().GetDataElementTypeCode(), 6);
auto payload = de.value().GetPayload();
auto vec = payload.ToVector();
std::vector<uint8_t> expected{0x00, 0x46};
ASSERT_EQ(vec, expected);
auto section2 = v1_adv.TryGetSection(1);
ASSERT_TRUE(section2.ok());
ASSERT_EQ(section2.value().GetIdentityKind(),
nearby_protocol::DeserializedV1IdentityKind::Plaintext);
ASSERT_EQ(section2.value().NumberOfDataElements(), 1);
}
*/
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