blob: 923c1ef3fd11748671e6c8018a955928828721bc [file] [log] [blame]
David Brazdil49f8a4d2021-03-04 09:57:33 +00001/*
2 * Copyright (C) 2020 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 <sys/socket.h>
18#include <unistd.h>
19
20// Needs to be included after sys/socket.h
21#include <linux/vm_sockets.h>
22
Jiyong Parkdd4720b2021-06-25 13:05:50 +090023#include <algorithm>
24#include <array>
David Brazdil49f8a4d2021-03-04 09:57:33 +000025#include <iostream>
Andrew Walbrana89fc132021-03-17 17:08:36 +000026#include <optional>
David Brazdil49f8a4d2021-03-04 09:57:33 +000027
28#include "android-base/file.h"
29#include "android-base/logging.h"
30#include "android-base/parseint.h"
31#include "android-base/unique_fd.h"
Andrew Walbranf6bf6862021-05-21 12:41:13 +000032#include "android/system/virtualizationservice/VirtualMachineConfig.h"
David Brazdil49f8a4d2021-03-04 09:57:33 +000033#include "virt/VirtualizationTest.h"
34
35using namespace android::base;
Andrew Walbran06b5f5c2021-03-31 12:34:13 +000036using namespace android::os;
David Brazdil49f8a4d2021-03-04 09:57:33 +000037
38namespace virt {
39
40static constexpr int kGuestPort = 45678;
Andrew Walbran3a5a9212021-05-04 17:09:08 +000041static constexpr const char kVmKernelPath[] = "/data/local/tmp/virt-test/kernel";
42static constexpr const char kVmInitrdPath[] = "/data/local/tmp/virt-test/initramfs";
43static constexpr const char kVmParams[] = "rdinit=/bin/init bin/vsock_client 2 45678 HelloWorld";
David Brazdil49f8a4d2021-03-04 09:57:33 +000044static constexpr const char kTestMessage[] = "HelloWorld";
45
Jiyong Parkdd4720b2021-06-25 13:05:50 +090046bool isVmSupported() {
47 const std::array<const char *, 4> needed_files = {
48 "/dev/kvm",
49 "/dev/vhost-vsock",
50 "/apex/com.android.virt/bin/crosvm",
51 "/apex/com.android.virt/bin/virtualizationservice",
52 };
53 return std::all_of(needed_files.begin(), needed_files.end(),
54 [](const char *file) { return access(file, F_OK) == 0; });
55}
56
David Brazdil49f8a4d2021-03-04 09:57:33 +000057TEST_F(VirtualizationTest, TestVsock) {
Jiyong Parkdd4720b2021-06-25 13:05:50 +090058 if (!isVmSupported()) {
59 GTEST_SKIP() << "Device doesn't support VM.";
60 }
61
David Brazdil49f8a4d2021-03-04 09:57:33 +000062 binder::Status status;
63
64 unique_fd server_fd(TEMP_FAILURE_RETRY(socket(AF_VSOCK, SOCK_STREAM, 0)));
65 ASSERT_GE(server_fd, 0) << strerror(errno);
66
67 struct sockaddr_vm server_sa = (struct sockaddr_vm){
68 .svm_family = AF_VSOCK,
69 .svm_port = kGuestPort,
70 .svm_cid = VMADDR_CID_ANY,
71 };
72
73 int ret = TEMP_FAILURE_RETRY(bind(server_fd, (struct sockaddr *)&server_sa, sizeof(server_sa)));
74 ASSERT_EQ(ret, 0) << strerror(errno);
75
76 LOG(INFO) << "Listening on port " << kGuestPort << "...";
77 ret = TEMP_FAILURE_RETRY(listen(server_fd, 1));
78 ASSERT_EQ(ret, 0) << strerror(errno);
79
Andrew Walbran3a5a9212021-05-04 17:09:08 +000080 VirtualMachineConfig config;
81 config.kernel = ParcelFileDescriptor(unique_fd(open(kVmKernelPath, O_RDONLY | O_CLOEXEC)));
82 config.initrd = ParcelFileDescriptor(unique_fd(open(kVmInitrdPath, O_RDONLY | O_CLOEXEC)));
83 config.params = String16(kVmParams);
84
David Brazdil49f8a4d2021-03-04 09:57:33 +000085 sp<IVirtualMachine> vm;
Andrew Walbranf6bf6862021-05-21 12:41:13 +000086 status = mVirtualizationService->startVm(config, std::nullopt, &vm);
David Brazdil49f8a4d2021-03-04 09:57:33 +000087 ASSERT_TRUE(status.isOk()) << "Error starting VM: " << status;
88
89 int32_t cid;
90 status = vm->getCid(&cid);
91 ASSERT_TRUE(status.isOk()) << "Error getting CID: " << status;
92 LOG(INFO) << "VM starting with CID " << cid;
93
94 LOG(INFO) << "Accepting connection...";
95 struct sockaddr_vm client_sa;
96 socklen_t client_sa_len = sizeof(client_sa);
97 unique_fd client_fd(
98 TEMP_FAILURE_RETRY(accept(server_fd, (struct sockaddr *)&client_sa, &client_sa_len)));
99 ASSERT_GE(client_fd, 0) << strerror(errno);
100 LOG(INFO) << "Connection from CID " << client_sa.svm_cid << " on port " << client_sa.svm_port;
101
102 LOG(INFO) << "Reading message from the client...";
103 std::string msg;
104 ASSERT_TRUE(ReadFdToString(client_fd, &msg));
105
106 LOG(INFO) << "Received message: " << msg;
107 ASSERT_EQ(msg, kTestMessage);
108}
109
110} // namespace virt