1 /*
2 * Copyright (C) 2017 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 #define LOG_TAG "VtsOffloadConfigV1_0TargetTest"
18
19 #include <android-base/stringprintf.h>
20 #include <android-base/unique_fd.h>
21 #include <android/hardware/tetheroffload/config/1.0/IOffloadConfig.h>
22 #include <gtest/gtest.h>
23 #include <hidl/GtestPrinter.h>
24 #include <hidl/ServiceManagement.h>
25 #include <linux/netfilter/nfnetlink.h>
26 #include <linux/netlink.h>
27 #include <linux/rtnetlink.h>
28 #include <log/log.h>
29 #include <sys/socket.h>
30 #include <unistd.h>
31 #include <set>
32
33 using android::base::StringPrintf;
34 using android::base::unique_fd;
35 using android::hardware::hidl_handle;
36 using android::hardware::hidl_string;
37 using android::hardware::Return;
38 using android::hardware::tetheroffload::config::V1_0::IOffloadConfig;
39 using android::hardware::Void;
40 using android::sp;
41
42 #define ASSERT_TRUE_CALLBACK \
43 [&](bool success, const hidl_string& errMsg) { ASSERT_TRUE(success) << errMsg.c_str(); }
44
45 #define ASSERT_FALSE_CALLBACK \
46 [&](bool success, const hidl_string& errMsg) { ASSERT_FALSE(success) << errMsg.c_str(); }
47
48 const unsigned kFd1Groups = NF_NETLINK_CONNTRACK_NEW | NF_NETLINK_CONNTRACK_DESTROY;
49 const unsigned kFd2Groups = NF_NETLINK_CONNTRACK_UPDATE | NF_NETLINK_CONNTRACK_DESTROY;
50
asSockaddr(const sockaddr_nl * nladdr)51 inline const sockaddr* asSockaddr(const sockaddr_nl* nladdr) {
52 return reinterpret_cast<const sockaddr*>(nladdr);
53 }
54
netlinkSocket(int protocol,unsigned groups)55 int netlinkSocket(int protocol, unsigned groups) {
56 unique_fd s(socket(AF_NETLINK, SOCK_DGRAM, protocol));
57 if (s.get() < 0) {
58 return -errno;
59 }
60
61 const struct sockaddr_nl bind_addr = {
62 .nl_family = AF_NETLINK, .nl_pad = 0, .nl_pid = 0, .nl_groups = groups,
63 };
64 if (::bind(s.get(), asSockaddr(&bind_addr), sizeof(bind_addr)) != 0) {
65 return -errno;
66 }
67
68 const struct sockaddr_nl kernel_addr = {
69 .nl_family = AF_NETLINK, .nl_pad = 0, .nl_pid = 0, .nl_groups = groups,
70 };
71 if (::connect(s.get(), asSockaddr(&kernel_addr), sizeof(kernel_addr)) != 0) {
72 return -errno;
73 }
74
75 return s.release();
76 }
77
netlinkSocket(unsigned groups)78 int netlinkSocket(unsigned groups) {
79 return netlinkSocket(NETLINK_NETFILTER, groups);
80 }
81
82 class OffloadConfigHidlTest : public testing::TestWithParam<std::string> {
83 public:
SetUp()84 virtual void SetUp() override {
85 config = IOffloadConfig::getService(GetParam());
86 ASSERT_NE(nullptr, config.get()) << "Could not get HIDL instance";
87 }
88
TearDown()89 virtual void TearDown() override {}
90
91 sp<IOffloadConfig> config;
92 };
93
94 // Ensure handles can be set with correct socket options.
TEST_P(OffloadConfigHidlTest,TestSetHandles)95 TEST_P(OffloadConfigHidlTest, TestSetHandles) {
96 // Try multiple times in a row to see if it provokes file descriptor leaks.
97 for (int i = 0; i < 1024; i++) {
98 unique_fd fd1(netlinkSocket(kFd1Groups));
99 if (fd1.get() < 0) {
100 ALOGE("Unable to create conntrack handles: %d/%s", errno, strerror(errno));
101 FAIL();
102 }
103 native_handle_t* const nativeHandle1 = native_handle_create(1, 0);
104 nativeHandle1->data[0] = fd1.release();
105 hidl_handle h1;
106 h1.setTo(nativeHandle1, true);
107
108 unique_fd fd2(netlinkSocket(kFd2Groups));
109 if (fd2.get() < 0) {
110 ALOGE("Unable to create conntrack handles: %d/%s", errno, strerror(errno));
111 FAIL();
112 }
113 native_handle_t* const nativeHandle2 = native_handle_create(1, 0);
114 nativeHandle2->data[0] = fd2.release();
115 hidl_handle h2;
116 h2.setTo(nativeHandle2, true);
117
118 const Return<void> ret = config->setHandles(h1, h2, ASSERT_TRUE_CALLBACK);
119 ASSERT_TRUE(ret.isOk());
120 }
121 }
122
123 // Passing a handle without an associated file descriptor should return an error
124 // (e.g. "Failed Input Checks"). Check that this occurs when both FDs are empty.
TEST_P(OffloadConfigHidlTest,TestSetHandleNone)125 TEST_P(OffloadConfigHidlTest, TestSetHandleNone) {
126 native_handle_t* const nativeHandle1 = native_handle_create(0, 0);
127 hidl_handle h1;
128 h1.setTo(nativeHandle1, true);
129 native_handle_t* const nativeHandle2 = native_handle_create(0, 0);
130 hidl_handle h2;
131 h2.setTo(nativeHandle2, true);
132
133 const Return<void> ret = config->setHandles(h1, h2, ASSERT_FALSE_CALLBACK);
134 ASSERT_TRUE(ret.isOk());
135 }
136
137 // Passing a handle without an associated file descriptor should return an error
138 // (e.g. "Failed Input Checks"). Check that this occurs when FD2 is empty.
TEST_P(OffloadConfigHidlTest,TestSetHandle1Only)139 TEST_P(OffloadConfigHidlTest, TestSetHandle1Only) {
140 unique_fd fd1(netlinkSocket(kFd1Groups));
141 if (fd1.get() < 0) {
142 ALOGE("Unable to create conntrack handles: %d/%s", errno, strerror(errno));
143 FAIL();
144 }
145 native_handle_t* const nativeHandle1 = native_handle_create(1, 0);
146 nativeHandle1->data[0] = fd1.release();
147 hidl_handle h1;
148 h1.setTo(nativeHandle1, true);
149
150 native_handle_t* const nativeHandle2 = native_handle_create(0, 0);
151 hidl_handle h2;
152 h2.setTo(nativeHandle2, true);
153
154 const Return<void> ret = config->setHandles(h1, h2, ASSERT_FALSE_CALLBACK);
155 ASSERT_TRUE(ret.isOk());
156 }
157
158 // Passing a handle without an associated file descriptor should return an error
159 // (e.g. "Failed Input Checks"). Check that this occurs when FD1 is empty.
TEST_P(OffloadConfigHidlTest,TestSetHandle2OnlyNotOk)160 TEST_P(OffloadConfigHidlTest, TestSetHandle2OnlyNotOk) {
161 native_handle_t* const nativeHandle1 = native_handle_create(0, 0);
162 hidl_handle h1;
163 h1.setTo(nativeHandle1, true);
164
165 unique_fd fd2(netlinkSocket(kFd2Groups));
166 if (fd2.get() < 0) {
167 ALOGE("Unable to create conntrack handles: %d/%s", errno, strerror(errno));
168 FAIL();
169 }
170 native_handle_t* const nativeHandle2 = native_handle_create(1, 0);
171 nativeHandle2->data[0] = fd2.release();
172 hidl_handle h2;
173 h2.setTo(nativeHandle2, true);
174
175 const Return<void> ret = config->setHandles(h1, h2, ASSERT_FALSE_CALLBACK);
176 ASSERT_TRUE(ret.isOk());
177 }
178
179 INSTANTIATE_TEST_SUITE_P(
180 PerInstance, OffloadConfigHidlTest,
181 testing::ValuesIn(android::hardware::getAllHalInstanceNames(IOffloadConfig::descriptor)),
182 android::hardware::PrintInstanceNameToString);
183