1 /*
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
23 #include <iostream>
24 #include <optional>
25
26 #include "android-base/file.h"
27 #include "android-base/logging.h"
28 #include "android-base/parseint.h"
29 #include "android-base/unique_fd.h"
30 #include "virt/VirtualizationTest.h"
31
32 using namespace android::base;
33 using namespace android::os;
34
35 namespace virt {
36
37 static constexpr int kGuestPort = 45678;
38 static constexpr const char kVmConfigPath[] = "/data/local/tmp/virt-test/vsock_config.json";
39 static constexpr const char kTestMessage[] = "HelloWorld";
40
TEST_F(VirtualizationTest,TestVsock)41 TEST_F(VirtualizationTest, TestVsock) {
42 binder::Status status;
43
44 unique_fd server_fd(TEMP_FAILURE_RETRY(socket(AF_VSOCK, SOCK_STREAM, 0)));
45 ASSERT_GE(server_fd, 0) << strerror(errno);
46
47 struct sockaddr_vm server_sa = (struct sockaddr_vm){
48 .svm_family = AF_VSOCK,
49 .svm_port = kGuestPort,
50 .svm_cid = VMADDR_CID_ANY,
51 };
52
53 int ret = TEMP_FAILURE_RETRY(bind(server_fd, (struct sockaddr *)&server_sa, sizeof(server_sa)));
54 ASSERT_EQ(ret, 0) << strerror(errno);
55
56 LOG(INFO) << "Listening on port " << kGuestPort << "...";
57 ret = TEMP_FAILURE_RETRY(listen(server_fd, 1));
58 ASSERT_EQ(ret, 0) << strerror(errno);
59
60 sp<IVirtualMachine> vm;
61 unique_fd vm_config_fd(open(kVmConfigPath, O_RDONLY | O_CLOEXEC));
62 status =
63 mVirtManager->startVm(ParcelFileDescriptor(std::move(vm_config_fd)), std::nullopt, &vm);
64 ASSERT_TRUE(status.isOk()) << "Error starting VM: " << status;
65
66 int32_t cid;
67 status = vm->getCid(&cid);
68 ASSERT_TRUE(status.isOk()) << "Error getting CID: " << status;
69 LOG(INFO) << "VM starting with CID " << cid;
70
71 LOG(INFO) << "Accepting connection...";
72 struct sockaddr_vm client_sa;
73 socklen_t client_sa_len = sizeof(client_sa);
74 unique_fd client_fd(
75 TEMP_FAILURE_RETRY(accept(server_fd, (struct sockaddr *)&client_sa, &client_sa_len)));
76 ASSERT_GE(client_fd, 0) << strerror(errno);
77 LOG(INFO) << "Connection from CID " << client_sa.svm_cid << " on port " << client_sa.svm_port;
78
79 LOG(INFO) << "Reading message from the client...";
80 std::string msg;
81 ASSERT_TRUE(ReadFdToString(client_fd, &msg));
82
83 LOG(INFO) << "Received message: " << msg;
84 ASSERT_EQ(msg, kTestMessage);
85 }
86
87 } // namespace virt
88