1 /*
2 * Copyright (C) 2023 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
19 #include "berberis/guest_loader/guest_loader.h"
20
21 #include <android/dlext.h>
22
23 #include <string>
24
25 #include "berberis/runtime/berberis.h"
26
27 namespace berberis {
28
29 namespace {
30
31 const constexpr uint64_t kNamespaceTypeIsolated = 1;
32
TEST(guest_loader,smoke)33 TEST(guest_loader, smoke) {
34 InitBerberis();
35
36 std::string error_msg;
37 GuestLoader* loader = GuestLoader::StartAppProcessInNewThread(&error_msg);
38 ASSERT_NE(loader, nullptr) << error_msg;
39
40 // Reset dlerror.
41 loader->DlError();
42 ASSERT_EQ(loader->DlError(), nullptr);
43
44 Dl_info info;
45 ASSERT_EQ(loader->DlAddr(loader, &info), 0);
46 ASSERT_EQ(loader->DlError(), nullptr); // dladdr doesn't set dlerror.
47
48 void* handle = loader->DlOpen("libc.so", RTLD_NOW);
49 ASSERT_NE(handle, nullptr) << loader->DlError(); // dlerror called only if assertion fails.
50 // Clear dlerror: successful dlopen(libc.so) might result in dlerror
51 // being set (because of failed dlsym("swift_demangle") during its
52 // initialization).
53 loader->DlError();
54
55 handle = loader->DlOpen("libdl.so", RTLD_NOW);
56 const char* dlerror = loader->DlError();
57 ASSERT_NE(handle, nullptr) << dlerror;
58 ASSERT_EQ(dlerror, nullptr) << dlerror;
59
60 android_namespace_t* ns = loader->CreateNamespace("classloader-namespace",
61 nullptr,
62 "/data:/mnt/expand",
63 kNamespaceTypeIsolated,
64 "/data:/mnt/expand",
65 nullptr);
66 ASSERT_NE(ns, nullptr) << loader->DlError(); // dlerror called only if assertion fails.
67 ASSERT_EQ(loader->DlError(), nullptr);
68 }
69
70 } // namespace
71
72 } // namespace berberis
73