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// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/usb/usb_blocklist.h"
#include <string_view>
#include "base/memory/raw_ref.h"
#include "base/test/scoped_feature_list.h"
#include "services/device/public/cpp/device_features.h"
#include "testing/gtest/include/gtest/gtest.h"
class UsbBlocklistTest : public testing::Test {
public:
UsbBlocklistTest() : blocklist_(UsbBlocklist::Get()) {}
const UsbBlocklist& list() { return *blocklist_; }
void SetDynamicBlocklist(std::string_view list) {
feature_list_.Reset();
std::map<std::string, std::string> params;
params["blocklist_additions"] = std::string(list);
feature_list_.InitAndEnableFeatureWithParameters(features::kWebUsbBlocklist,
params);
blocklist_->ResetToDefaultValuesForTest();
}
private:
void TearDown() override {
// Because UsbBlocklist is a singleton it must be cleared after tests run
// to prevent leakage between tests.
feature_list_.Reset();
blocklist_->ResetToDefaultValuesForTest();
}
base::test::ScopedFeatureList feature_list_;
const raw_ref<UsbBlocklist> blocklist_;
};
TEST_F(UsbBlocklistTest, BasicExclusions) {
SetDynamicBlocklist("18D1:58F0:0100");
EXPECT_TRUE(list().IsExcluded({0x18D1, 0x58F0, 0x0100}));
// An older device version is also blocked.
EXPECT_TRUE(list().IsExcluded({0x18D1, 0x58F0, 0x0090}));
// A newer device version is not blocked.
EXPECT_FALSE(list().IsExcluded({0x18D1, 0x58F0, 0x0200}));
// Other devices with nearby vendor and product IDs are not blocked.
EXPECT_FALSE(list().IsExcluded({0x18D1, 0x58F1, 0x0100}));
EXPECT_FALSE(list().IsExcluded({0x18D1, 0x58EF, 0x0100}));
EXPECT_FALSE(list().IsExcluded({0x18D0, 0x58F0, 0x0100}));
EXPECT_FALSE(list().IsExcluded({0x18D2, 0x58F0, 0x0100}));
}
TEST_F(UsbBlocklistTest, StringsWithNoValidEntries) {
SetDynamicBlocklist("");
EXPECT_EQ(0u, list().GetDynamicEntryCountForTest());
SetDynamicBlocklist("~!@#$%^&*()-_=+[]{}/*-");
EXPECT_EQ(0u, list().GetDynamicEntryCountForTest());
SetDynamicBlocklist(":");
EXPECT_EQ(0u, list().GetDynamicEntryCountForTest());
SetDynamicBlocklist("::");
EXPECT_EQ(0u, list().GetDynamicEntryCountForTest());
SetDynamicBlocklist(",");
EXPECT_EQ(0u, list().GetDynamicEntryCountForTest());
SetDynamicBlocklist(",,");
EXPECT_EQ(0u, list().GetDynamicEntryCountForTest());
SetDynamicBlocklist(",::,");
EXPECT_EQ(0u, list().GetDynamicEntryCountForTest());
SetDynamicBlocklist("1:2:3");
EXPECT_EQ(0u, list().GetDynamicEntryCountForTest());
SetDynamicBlocklist("18D1:2:3000");
EXPECT_EQ(0u, list().GetDynamicEntryCountForTest());
SetDynamicBlocklist("0000:0x00:0000");
EXPECT_EQ(0u, list().GetDynamicEntryCountForTest());
SetDynamicBlocklist("0000: 0:0000");
EXPECT_EQ(0u, list().GetDynamicEntryCountForTest());
SetDynamicBlocklist("000g:0000:0000");
EXPECT_EQ(0u, list().GetDynamicEntryCountForTest());
SetDynamicBlocklist("☯");
EXPECT_EQ(0u, list().GetDynamicEntryCountForTest());
}
TEST_F(UsbBlocklistTest, StringsWithOneValidEntry) {
SetDynamicBlocklist("18D1:58F0:0101");
EXPECT_EQ(1u, list().GetDynamicEntryCountForTest());
EXPECT_TRUE(list().IsExcluded({0x18D1, 0x58F0, 0x0101}));
SetDynamicBlocklist(" 18D1:58F0:0200 ");
EXPECT_EQ(1u, list().GetDynamicEntryCountForTest());
EXPECT_TRUE(list().IsExcluded({0x18D1, 0x58F0, 0x0200}));
SetDynamicBlocklist(", 18D1:58F0:0201, ");
EXPECT_EQ(1u, list().GetDynamicEntryCountForTest());
EXPECT_TRUE(list().IsExcluded({0x18D1, 0x58F0, 0x0201}));
SetDynamicBlocklist("18D1:58F0:0202, 0000:1:0000");
EXPECT_EQ(1u, list().GetDynamicEntryCountForTest());
EXPECT_TRUE(list().IsExcluded({0x18D1, 0x58F0, 0x0202}));
}
TEST_F(UsbBlocklistTest, StaticEntries) {
// Yubikey devices. https://crbug.com/818807
//
// The specific versions of these devices that we want to block are unknown.
// The device versions listed here are abitrary chosen to test that any device
// will be matched.
EXPECT_TRUE(list().IsExcluded({0x1050, 0x0010, 0x0100}));
EXPECT_TRUE(list().IsExcluded({0x1050, 0x0018, 0x0100}));
EXPECT_TRUE(list().IsExcluded({0x1050, 0x0030, 0x0100}));
EXPECT_TRUE(list().IsExcluded({0x1050, 0x0110, 0x0100}));
EXPECT_TRUE(list().IsExcluded({0x1050, 0x0111, 0x0100}));
EXPECT_TRUE(list().IsExcluded({0x1050, 0x0112, 0x0100}));
EXPECT_TRUE(list().IsExcluded({0x1050, 0x0113, 0x0100}));
EXPECT_TRUE(list().IsExcluded({0x1050, 0x0114, 0x0100}));
EXPECT_TRUE(list().IsExcluded({0x1050, 0x0115, 0x0100}));
EXPECT_TRUE(list().IsExcluded({0x1050, 0x0116, 0x0100}));
EXPECT_TRUE(list().IsExcluded({0x1050, 0x0120, 0x0100}));
EXPECT_TRUE(list().IsExcluded({0x1050, 0x0200, 0x0100}));
EXPECT_TRUE(list().IsExcluded({0x1050, 0x0211, 0x0100}));
EXPECT_TRUE(list().IsExcluded({0x1050, 0x0401, 0x0100}));
EXPECT_TRUE(list().IsExcluded({0x1050, 0x0402, 0x0100}));
EXPECT_TRUE(list().IsExcluded({0x1050, 0x0403, 0x0100}));
EXPECT_TRUE(list().IsExcluded({0x1050, 0x0404, 0x0100}));
EXPECT_TRUE(list().IsExcluded({0x1050, 0x0405, 0x0100}));
EXPECT_TRUE(list().IsExcluded({0x1050, 0x0406, 0x0100}));
EXPECT_TRUE(list().IsExcluded({0x1050, 0x0407, 0x0100}));
EXPECT_TRUE(list().IsExcluded({0x1050, 0x0410, 0x0100}));
// Check that various devices around the Yubikey range are not blocked.
EXPECT_FALSE(list().IsExcluded({0x104F, 0x0200, 0x0100}));
EXPECT_FALSE(list().IsExcluded({0x1051, 0x0200, 0x0100}));
}
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