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// Copyright 2013 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/nacl/browser/nacl_validation_cache.h"
#include "base/containers/span.h"
#include "base/pickle.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace nacl {
const char key1[65] =
"0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF";
const char key2[65] =
"a 64-byte string of various junk................................";
const char sig1[33] = "0123456789ABCDEF0123456789ABCDEF";
const char sig2[33] = "a 32-byte string of various junk";
class NaClValidationCacheTest : public ::testing::Test {
protected:
NaClValidationCache cache1;
NaClValidationCache cache2;
void SetUp() override {
// The compiler chokes if std::string(key1) is passed directly as an arg.
std::string key(key1);
cache1.SetValidationCacheKey(key);
cache2.SetValidationCacheKey(key);
}
bool IsIdentical(const NaClValidationCache& a,
const NaClValidationCache& b) const {
if (a.GetValidationCacheKey() != b.GetValidationCacheKey())
return false;
if (a.size() != b.size())
return false;
return a.GetContents() == b.GetContents();
}
};
TEST_F(NaClValidationCacheTest, Sanity) {
ASSERT_EQ(0u, cache1.size());
ASSERT_FALSE(cache1.QueryKnownToValidate(sig1, true));
ASSERT_FALSE(cache1.QueryKnownToValidate(sig2, true));
}
TEST_F(NaClValidationCacheTest, Sig1) {
cache1.SetKnownToValidate(sig1);
ASSERT_EQ(1, (int) cache1.size());
ASSERT_TRUE(cache1.QueryKnownToValidate(sig1, true));
ASSERT_FALSE(cache1.QueryKnownToValidate(sig2, true));
}
TEST_F(NaClValidationCacheTest, Sig2) {
cache1.SetKnownToValidate(sig2);
ASSERT_EQ(1, (int) cache1.size());
ASSERT_FALSE(cache1.QueryKnownToValidate(sig1, true));
ASSERT_TRUE(cache1.QueryKnownToValidate(sig2, true));
}
TEST_F(NaClValidationCacheTest, SigBoth) {
cache1.SetKnownToValidate(sig1);
cache1.SetKnownToValidate(sig2);
ASSERT_EQ(2, (int) cache1.size());
ASSERT_TRUE(cache1.QueryKnownToValidate(sig1, true));
ASSERT_TRUE(cache1.QueryKnownToValidate(sig2, true));
}
TEST_F(NaClValidationCacheTest, DoubleSet) {
cache1.SetKnownToValidate(sig1);
cache1.SetKnownToValidate(sig1);
ASSERT_EQ(1, (int) cache1.size());
ASSERT_TRUE(cache1.QueryKnownToValidate(sig1, true));
}
TEST_F(NaClValidationCacheTest, EmptyIdentical) {
ASSERT_TRUE(IsIdentical(cache1, cache2));
}
TEST_F(NaClValidationCacheTest, DifferentKeysNotIdentical) {
std::string key(key2);
cache2.SetValidationCacheKey(key);
ASSERT_FALSE(IsIdentical(cache1, cache2));
}
TEST_F(NaClValidationCacheTest, DifferentSizesNotIdentical) {
cache1.SetKnownToValidate(sig1);
ASSERT_FALSE(IsIdentical(cache1, cache2));
}
TEST_F(NaClValidationCacheTest, SameSigsIdentical) {
cache1.SetKnownToValidate(sig1);
cache2.SetKnownToValidate(sig1);
ASSERT_TRUE(IsIdentical(cache1, cache2));
}
TEST_F(NaClValidationCacheTest, DifferentSigsNotIdentical) {
cache1.SetKnownToValidate(sig1);
cache2.SetKnownToValidate(sig2);
ASSERT_FALSE(IsIdentical(cache1, cache2));
}
TEST_F(NaClValidationCacheTest, InOrderIdentical) {
cache1.SetKnownToValidate(sig1);
cache1.SetKnownToValidate(sig2);
cache2.SetKnownToValidate(sig1);
cache2.SetKnownToValidate(sig2);
ASSERT_TRUE(IsIdentical(cache1, cache2));
}
TEST_F(NaClValidationCacheTest, QueryReorders) {
cache1.SetKnownToValidate(sig1);
cache1.SetKnownToValidate(sig2);
cache2.SetKnownToValidate(sig2);
cache2.SetKnownToValidate(sig1);
ASSERT_FALSE(IsIdentical(cache1, cache2));
cache2.QueryKnownToValidate(sig2, true);
ASSERT_TRUE(IsIdentical(cache1, cache2));
}
TEST_F(NaClValidationCacheTest, ForceNoReorder) {
cache1.SetKnownToValidate(sig1);
cache1.SetKnownToValidate(sig2);
cache2.SetKnownToValidate(sig2);
cache2.SetKnownToValidate(sig1);
cache2.QueryKnownToValidate(sig2, false);
ASSERT_FALSE(IsIdentical(cache1, cache2));
}
TEST_F(NaClValidationCacheTest, SerializeDeserialize) {
std::string key(key2);
cache1.SetValidationCacheKey(key);
cache1.SetKnownToValidate(sig1);
cache1.SetKnownToValidate(sig2);
base::Pickle pickle;
cache1.Serialize(&pickle);
ASSERT_TRUE(cache2.Deserialize(&pickle));
ASSERT_EQ(2, (int) cache2.size());
ASSERT_TRUE(IsIdentical(cache1, cache2));
}
TEST_F(NaClValidationCacheTest, SerializeDeserializeTruncated) {
std::string key(key2);
cache1.SetValidationCacheKey(key);
cache1.SetKnownToValidate(sig1);
cache1.SetKnownToValidate(sig2);
base::Pickle pickle;
cache1.Serialize(&pickle);
base::span<const uint8_t> full_payload = base::span(pickle);
base::span<const uint8_t> truncated_payload =
full_payload.first(full_payload.size() - 20);
base::Pickle truncated = base::Pickle::WithUnownedBuffer(truncated_payload);
ASSERT_FALSE(cache2.Deserialize(&truncated));
ASSERT_EQ(0u, cache2.size());
}
TEST_F(NaClValidationCacheTest, DeserializeBadKey) {
std::string key(sig1); // Too short, will cause the deserialization to error.
cache1.SetValidationCacheKey(key);
cache1.SetKnownToValidate(sig1);
cache1.SetKnownToValidate(sig2);
base::Pickle pickle;
cache1.Serialize(&pickle);
ASSERT_FALSE(cache2.Deserialize(&pickle));
ASSERT_EQ(0u, cache2.size());
}
TEST_F(NaClValidationCacheTest, DeserializeNothing) {
cache1.SetKnownToValidate(sig1);
base::Pickle pickle =
base::Pickle::WithUnownedBuffer(base::as_byte_span(std::string()));
ASSERT_FALSE(cache1.Deserialize(&pickle));
ASSERT_EQ(0u, cache1.size());
}
TEST_F(NaClValidationCacheTest, DeserializeJunk) {
cache1.SetKnownToValidate(sig1);
base::Pickle pickle =
base::Pickle::WithUnownedBuffer(base::as_byte_span(key1));
ASSERT_FALSE(cache1.Deserialize(&pickle));
ASSERT_EQ(0u, cache1.size());
}
}
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