1 /**
2 * Copyright (C) 2021 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include "gtest/gtest.h"
18 #include <android-base/file.h>
19 #include <android-base/properties.h>
20 #include "bpf/BpfUtils.h"
21
22 class VtsBootconfigTest : public testing::Test {};
23
TEST_F(VtsBootconfigTest,ProcCmdlineAndroidbootTest)24 TEST_F(VtsBootconfigTest, ProcCmdlineAndroidbootTest) {
25 // This is supported and required in Android S with kernel version
26 // 5.10+. Devices are allowed to launch with kernels < 5.10
27 // through Android T so the expectation from the Android framework, and the
28 // enforcement of this requirement, can only be on devices launched with
29 // Android U and beyond.
30 int first_api_level = android::base::GetIntProperty(
31 "ro.board.first_api_level",
32 android::base::GetIntProperty("ro.vendor.api_level", 1000000));
33 if (first_api_level < __ANDROID_API_U__) {
34 GTEST_SKIP() << "Bootconfig requirements do not apply";
35 }
36
37 std::string cmdline;
38 ASSERT_TRUE(android::base::ReadFileToString("/proc/cmdline", &cmdline));
39 EXPECT_TRUE(cmdline.size() > 0);
40 EXPECT_EQ(cmdline.find("androidboot"), cmdline.npos)
41 << "\"androidboot\" parameters are not allowed in the kernel cmdline for "
42 << "devices using kernel version 5.10 or greater with Android S and beyond. "
43 << "These parameters are to be placed in bootconfig."
44 << "\n/proc/cmdline contents:\n" << cmdline;
45 }
46