Wayne Ma | 4d69233 | 2022-01-19 16:04:04 +0800 | [diff] [blame] | 1 | /* |
Wayne Ma | 7be6bce | 2022-01-12 16:29:49 +0800 | [diff] [blame] | 2 | * Copyright 2022 The Android Open Source Project |
Wayne Ma | 4d69233 | 2022-01-19 16:04:04 +0800 | [diff] [blame] | 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 | * TrafficControllerTest.cpp - unit tests for TrafficController.cpp |
| 17 | */ |
| 18 | |
| 19 | #include <cstdint> |
| 20 | #include <string> |
| 21 | #include <vector> |
| 22 | |
| 23 | #include <fcntl.h> |
| 24 | #include <inttypes.h> |
| 25 | #include <linux/inet_diag.h> |
| 26 | #include <linux/sock_diag.h> |
| 27 | #include <sys/socket.h> |
| 28 | #include <sys/types.h> |
| 29 | #include <unistd.h> |
| 30 | |
| 31 | #include <gtest/gtest.h> |
| 32 | |
Ken Chen | 2fb8636 | 2022-06-05 11:39:38 +0800 | [diff] [blame] | 33 | #include <android-base/file.h> |
Wayne Ma | 4d69233 | 2022-01-19 16:04:04 +0800 | [diff] [blame] | 34 | #include <android-base/stringprintf.h> |
| 35 | #include <android-base/strings.h> |
Wayne Ma | 7be6bce | 2022-01-12 16:29:49 +0800 | [diff] [blame] | 36 | #include <binder/Status.h> |
Wayne Ma | 4d69233 | 2022-01-19 16:04:04 +0800 | [diff] [blame] | 37 | |
| 38 | #include <netdutils/MockSyscalls.h> |
| 39 | |
Maciej Żenczykowski | 439bac2 | 2022-05-31 03:22:32 -0700 | [diff] [blame] | 40 | #define TEST_BPF_MAP |
Wayne Ma | 4d69233 | 2022-01-19 16:04:04 +0800 | [diff] [blame] | 41 | #include "TrafficController.h" |
| 42 | #include "bpf/BpfUtils.h" |
Patrick Rohr | 61e9467 | 2022-02-01 21:06:40 +0100 | [diff] [blame] | 43 | #include "NetdUpdatablePublic.h" |
Wayne Ma | 4d69233 | 2022-01-19 16:04:04 +0800 | [diff] [blame] | 44 | |
| 45 | using namespace android::bpf; // NOLINT(google-build-using-namespace): grandfathered |
| 46 | |
| 47 | namespace android { |
| 48 | namespace net { |
| 49 | |
Wayne Ma | 7be6bce | 2022-01-12 16:29:49 +0800 | [diff] [blame] | 50 | using android::netdutils::Status; |
Wayne Ma | 4d69233 | 2022-01-19 16:04:04 +0800 | [diff] [blame] | 51 | using base::Result; |
| 52 | using netdutils::isOk; |
Ken Chen | 2fb8636 | 2022-06-05 11:39:38 +0800 | [diff] [blame] | 53 | using netdutils::statusFromErrno; |
Wayne Ma | 4d69233 | 2022-01-19 16:04:04 +0800 | [diff] [blame] | 54 | |
| 55 | constexpr int TEST_MAP_SIZE = 10; |
Wayne Ma | 4d69233 | 2022-01-19 16:04:04 +0800 | [diff] [blame] | 56 | constexpr uid_t TEST_UID = 10086; |
| 57 | constexpr uid_t TEST_UID2 = 54321; |
| 58 | constexpr uid_t TEST_UID3 = 98765; |
| 59 | constexpr uint32_t TEST_TAG = 42; |
| 60 | constexpr uint32_t TEST_COUNTERSET = 1; |
Wayne Ma | 4d69233 | 2022-01-19 16:04:04 +0800 | [diff] [blame] | 61 | |
| 62 | #define ASSERT_VALID(x) ASSERT_TRUE((x).isValid()) |
| 63 | |
| 64 | class TrafficControllerTest : public ::testing::Test { |
| 65 | protected: |
Wayne Ma | 92d8079 | 2022-01-20 13:20:34 +0800 | [diff] [blame] | 66 | TrafficControllerTest() {} |
Wayne Ma | 4d69233 | 2022-01-19 16:04:04 +0800 | [diff] [blame] | 67 | TrafficController mTc; |
| 68 | BpfMap<uint64_t, UidTagValue> mFakeCookieTagMap; |
Wayne Ma | 4d69233 | 2022-01-19 16:04:04 +0800 | [diff] [blame] | 69 | BpfMap<uint32_t, StatsValue> mFakeAppUidStatsMap; |
| 70 | BpfMap<StatsKey, StatsValue> mFakeStatsMapA; |
Lorenzo Colitti | 60cbed3 | 2022-03-03 17:49:01 +0900 | [diff] [blame] | 71 | BpfMap<uint32_t, uint32_t> mFakeConfigurationMap; |
Wayne Ma | 4d69233 | 2022-01-19 16:04:04 +0800 | [diff] [blame] | 72 | BpfMap<uint32_t, UidOwnerValue> mFakeUidOwnerMap; |
| 73 | BpfMap<uint32_t, uint8_t> mFakeUidPermissionMap; |
| 74 | |
| 75 | void SetUp() { |
| 76 | std::lock_guard guard(mTc.mMutex); |
| 77 | ASSERT_EQ(0, setrlimitForTest()); |
| 78 | |
Maciej Żenczykowski | 439bac2 | 2022-05-31 03:22:32 -0700 | [diff] [blame] | 79 | mFakeCookieTagMap.resetMap(BPF_MAP_TYPE_HASH, TEST_MAP_SIZE); |
Wayne Ma | 4d69233 | 2022-01-19 16:04:04 +0800 | [diff] [blame] | 80 | ASSERT_VALID(mFakeCookieTagMap); |
| 81 | |
Maciej Żenczykowski | 439bac2 | 2022-05-31 03:22:32 -0700 | [diff] [blame] | 82 | mFakeAppUidStatsMap.resetMap(BPF_MAP_TYPE_HASH, TEST_MAP_SIZE); |
Wayne Ma | 4d69233 | 2022-01-19 16:04:04 +0800 | [diff] [blame] | 83 | ASSERT_VALID(mFakeAppUidStatsMap); |
| 84 | |
Maciej Żenczykowski | 439bac2 | 2022-05-31 03:22:32 -0700 | [diff] [blame] | 85 | mFakeStatsMapA.resetMap(BPF_MAP_TYPE_HASH, TEST_MAP_SIZE); |
Wayne Ma | 4d69233 | 2022-01-19 16:04:04 +0800 | [diff] [blame] | 86 | ASSERT_VALID(mFakeStatsMapA); |
| 87 | |
Maciej Żenczykowski | 439bac2 | 2022-05-31 03:22:32 -0700 | [diff] [blame] | 88 | mFakeConfigurationMap.resetMap(BPF_MAP_TYPE_HASH, 1); |
Wayne Ma | 4d69233 | 2022-01-19 16:04:04 +0800 | [diff] [blame] | 89 | ASSERT_VALID(mFakeConfigurationMap); |
| 90 | |
Maciej Żenczykowski | 439bac2 | 2022-05-31 03:22:32 -0700 | [diff] [blame] | 91 | mFakeUidOwnerMap.resetMap(BPF_MAP_TYPE_HASH, TEST_MAP_SIZE); |
Wayne Ma | 4d69233 | 2022-01-19 16:04:04 +0800 | [diff] [blame] | 92 | ASSERT_VALID(mFakeUidOwnerMap); |
Maciej Żenczykowski | 439bac2 | 2022-05-31 03:22:32 -0700 | [diff] [blame] | 93 | mFakeUidPermissionMap.resetMap(BPF_MAP_TYPE_HASH, TEST_MAP_SIZE); |
Wayne Ma | 4d69233 | 2022-01-19 16:04:04 +0800 | [diff] [blame] | 94 | ASSERT_VALID(mFakeUidPermissionMap); |
| 95 | |
Maciej Żenczykowski | 55ab87a | 2022-05-31 03:15:12 -0700 | [diff] [blame] | 96 | mTc.mCookieTagMap = mFakeCookieTagMap; |
Wayne Ma | 4d69233 | 2022-01-19 16:04:04 +0800 | [diff] [blame] | 97 | ASSERT_VALID(mTc.mCookieTagMap); |
Maciej Żenczykowski | 55ab87a | 2022-05-31 03:15:12 -0700 | [diff] [blame] | 98 | mTc.mAppUidStatsMap = mFakeAppUidStatsMap; |
Wayne Ma | 4d69233 | 2022-01-19 16:04:04 +0800 | [diff] [blame] | 99 | ASSERT_VALID(mTc.mAppUidStatsMap); |
Maciej Żenczykowski | 55ab87a | 2022-05-31 03:15:12 -0700 | [diff] [blame] | 100 | mTc.mStatsMapA = mFakeStatsMapA; |
Wayne Ma | 4d69233 | 2022-01-19 16:04:04 +0800 | [diff] [blame] | 101 | ASSERT_VALID(mTc.mStatsMapA); |
Maciej Żenczykowski | 55ab87a | 2022-05-31 03:15:12 -0700 | [diff] [blame] | 102 | mTc.mConfigurationMap = mFakeConfigurationMap; |
Wayne Ma | 4d69233 | 2022-01-19 16:04:04 +0800 | [diff] [blame] | 103 | ASSERT_VALID(mTc.mConfigurationMap); |
| 104 | |
| 105 | // Always write to stats map A by default. |
| 106 | ASSERT_RESULT_OK(mTc.mConfigurationMap.writeValue(CURRENT_STATS_MAP_CONFIGURATION_KEY, |
| 107 | SELECT_MAP_A, BPF_ANY)); |
Maciej Żenczykowski | 55ab87a | 2022-05-31 03:15:12 -0700 | [diff] [blame] | 108 | mTc.mUidOwnerMap = mFakeUidOwnerMap; |
Wayne Ma | 4d69233 | 2022-01-19 16:04:04 +0800 | [diff] [blame] | 109 | ASSERT_VALID(mTc.mUidOwnerMap); |
Maciej Żenczykowski | 55ab87a | 2022-05-31 03:15:12 -0700 | [diff] [blame] | 110 | mTc.mUidPermissionMap = mFakeUidPermissionMap; |
Wayne Ma | 4d69233 | 2022-01-19 16:04:04 +0800 | [diff] [blame] | 111 | ASSERT_VALID(mTc.mUidPermissionMap); |
| 112 | mTc.mPrivilegedUser.clear(); |
| 113 | } |
| 114 | |
Wayne Ma | 4d69233 | 2022-01-19 16:04:04 +0800 | [diff] [blame] | 115 | void populateFakeStats(uint64_t cookie, uint32_t uid, uint32_t tag, StatsKey* key) { |
| 116 | UidTagValue cookieMapkey = {.uid = (uint32_t)uid, .tag = tag}; |
| 117 | EXPECT_RESULT_OK(mFakeCookieTagMap.writeValue(cookie, cookieMapkey, BPF_ANY)); |
| 118 | *key = {.uid = uid, .tag = tag, .counterSet = TEST_COUNTERSET, .ifaceIndex = 1}; |
| 119 | StatsValue statsMapValue = {.rxPackets = 1, .rxBytes = 100}; |
Wayne Ma | 4d69233 | 2022-01-19 16:04:04 +0800 | [diff] [blame] | 120 | EXPECT_RESULT_OK(mFakeStatsMapA.writeValue(*key, statsMapValue, BPF_ANY)); |
| 121 | key->tag = 0; |
| 122 | EXPECT_RESULT_OK(mFakeStatsMapA.writeValue(*key, statsMapValue, BPF_ANY)); |
| 123 | EXPECT_RESULT_OK(mFakeAppUidStatsMap.writeValue(uid, statsMapValue, BPF_ANY)); |
| 124 | // put tag information back to statsKey |
| 125 | key->tag = tag; |
| 126 | } |
| 127 | |
| 128 | void checkUidOwnerRuleForChain(ChildChain chain, UidOwnerMatchType match) { |
| 129 | uint32_t uid = TEST_UID; |
| 130 | EXPECT_EQ(0, mTc.changeUidOwnerRule(chain, uid, DENY, DENYLIST)); |
| 131 | Result<UidOwnerValue> value = mFakeUidOwnerMap.readValue(uid); |
| 132 | EXPECT_RESULT_OK(value); |
| 133 | EXPECT_TRUE(value.value().rule & match); |
| 134 | |
| 135 | uid = TEST_UID2; |
| 136 | EXPECT_EQ(0, mTc.changeUidOwnerRule(chain, uid, ALLOW, ALLOWLIST)); |
| 137 | value = mFakeUidOwnerMap.readValue(uid); |
| 138 | EXPECT_RESULT_OK(value); |
| 139 | EXPECT_TRUE(value.value().rule & match); |
| 140 | |
| 141 | EXPECT_EQ(0, mTc.changeUidOwnerRule(chain, uid, DENY, ALLOWLIST)); |
| 142 | value = mFakeUidOwnerMap.readValue(uid); |
| 143 | EXPECT_FALSE(value.ok()); |
| 144 | EXPECT_EQ(ENOENT, value.error().code()); |
| 145 | |
| 146 | uid = TEST_UID; |
| 147 | EXPECT_EQ(0, mTc.changeUidOwnerRule(chain, uid, ALLOW, DENYLIST)); |
| 148 | value = mFakeUidOwnerMap.readValue(uid); |
| 149 | EXPECT_FALSE(value.ok()); |
| 150 | EXPECT_EQ(ENOENT, value.error().code()); |
| 151 | |
| 152 | uid = TEST_UID3; |
| 153 | EXPECT_EQ(-ENOENT, mTc.changeUidOwnerRule(chain, uid, ALLOW, DENYLIST)); |
| 154 | value = mFakeUidOwnerMap.readValue(uid); |
| 155 | EXPECT_FALSE(value.ok()); |
| 156 | EXPECT_EQ(ENOENT, value.error().code()); |
| 157 | } |
| 158 | |
| 159 | void checkEachUidValue(const std::vector<int32_t>& uids, UidOwnerMatchType match) { |
| 160 | for (uint32_t uid : uids) { |
| 161 | Result<UidOwnerValue> value = mFakeUidOwnerMap.readValue(uid); |
| 162 | EXPECT_RESULT_OK(value); |
| 163 | EXPECT_TRUE(value.value().rule & match); |
| 164 | } |
| 165 | std::set<uint32_t> uidSet(uids.begin(), uids.end()); |
| 166 | const auto checkNoOtherUid = [&uidSet](const int32_t& key, |
| 167 | const BpfMap<uint32_t, UidOwnerValue>&) { |
| 168 | EXPECT_NE(uidSet.end(), uidSet.find(key)); |
| 169 | return Result<void>(); |
| 170 | }; |
| 171 | EXPECT_RESULT_OK(mFakeUidOwnerMap.iterate(checkNoOtherUid)); |
| 172 | } |
| 173 | |
| 174 | void checkUidMapReplace(const std::string& name, const std::vector<int32_t>& uids, |
| 175 | UidOwnerMatchType match) { |
| 176 | bool isAllowlist = true; |
| 177 | EXPECT_EQ(0, mTc.replaceUidOwnerMap(name, isAllowlist, uids)); |
| 178 | checkEachUidValue(uids, match); |
| 179 | |
| 180 | isAllowlist = false; |
| 181 | EXPECT_EQ(0, mTc.replaceUidOwnerMap(name, isAllowlist, uids)); |
| 182 | checkEachUidValue(uids, match); |
| 183 | } |
| 184 | |
| 185 | void expectUidOwnerMapValues(const std::vector<uint32_t>& appUids, uint8_t expectedRule, |
| 186 | uint32_t expectedIif) { |
| 187 | for (uint32_t uid : appUids) { |
| 188 | Result<UidOwnerValue> value = mFakeUidOwnerMap.readValue(uid); |
| 189 | EXPECT_RESULT_OK(value); |
| 190 | EXPECT_EQ(expectedRule, value.value().rule) |
| 191 | << "Expected rule for UID " << uid << " to be " << expectedRule << ", but was " |
| 192 | << value.value().rule; |
| 193 | EXPECT_EQ(expectedIif, value.value().iif) |
| 194 | << "Expected iif for UID " << uid << " to be " << expectedIif << ", but was " |
| 195 | << value.value().iif; |
| 196 | } |
| 197 | } |
| 198 | |
| 199 | template <class Key, class Value> |
| 200 | void expectMapEmpty(BpfMap<Key, Value>& map) { |
| 201 | auto isEmpty = map.isEmpty(); |
| 202 | EXPECT_RESULT_OK(isEmpty); |
| 203 | EXPECT_TRUE(isEmpty.value()); |
| 204 | } |
| 205 | |
| 206 | void expectUidPermissionMapValues(const std::vector<uid_t>& appUids, uint8_t expectedValue) { |
| 207 | for (uid_t uid : appUids) { |
| 208 | Result<uint8_t> value = mFakeUidPermissionMap.readValue(uid); |
| 209 | EXPECT_RESULT_OK(value); |
| 210 | EXPECT_EQ(expectedValue, value.value()) |
| 211 | << "Expected value for UID " << uid << " to be " << expectedValue |
| 212 | << ", but was " << value.value(); |
| 213 | } |
| 214 | } |
| 215 | |
| 216 | void expectPrivilegedUserSet(const std::vector<uid_t>& appUids) { |
| 217 | std::lock_guard guard(mTc.mMutex); |
| 218 | EXPECT_EQ(appUids.size(), mTc.mPrivilegedUser.size()); |
| 219 | for (uid_t uid : appUids) { |
| 220 | EXPECT_NE(mTc.mPrivilegedUser.end(), mTc.mPrivilegedUser.find(uid)); |
| 221 | } |
| 222 | } |
| 223 | |
| 224 | void expectPrivilegedUserSetEmpty() { |
| 225 | std::lock_guard guard(mTc.mMutex); |
| 226 | EXPECT_TRUE(mTc.mPrivilegedUser.empty()); |
| 227 | } |
| 228 | |
| 229 | void addPrivilegedUid(uid_t uid) { |
| 230 | std::vector privilegedUid = {uid}; |
| 231 | mTc.setPermissionForUids(INetd::PERMISSION_UPDATE_DEVICE_STATS, privilegedUid); |
| 232 | } |
| 233 | |
| 234 | void removePrivilegedUid(uid_t uid) { |
| 235 | std::vector privilegedUid = {uid}; |
| 236 | mTc.setPermissionForUids(INetd::PERMISSION_NONE, privilegedUid); |
| 237 | } |
| 238 | |
| 239 | void expectFakeStatsUnchanged(uint64_t cookie, uint32_t tag, uint32_t uid, |
| 240 | StatsKey tagStatsMapKey) { |
| 241 | Result<UidTagValue> cookieMapResult = mFakeCookieTagMap.readValue(cookie); |
| 242 | EXPECT_RESULT_OK(cookieMapResult); |
| 243 | EXPECT_EQ(uid, cookieMapResult.value().uid); |
| 244 | EXPECT_EQ(tag, cookieMapResult.value().tag); |
Wayne Ma | 4d69233 | 2022-01-19 16:04:04 +0800 | [diff] [blame] | 245 | Result<StatsValue> statsMapResult = mFakeStatsMapA.readValue(tagStatsMapKey); |
| 246 | EXPECT_RESULT_OK(statsMapResult); |
| 247 | EXPECT_EQ((uint64_t)1, statsMapResult.value().rxPackets); |
| 248 | EXPECT_EQ((uint64_t)100, statsMapResult.value().rxBytes); |
| 249 | tagStatsMapKey.tag = 0; |
| 250 | statsMapResult = mFakeStatsMapA.readValue(tagStatsMapKey); |
| 251 | EXPECT_RESULT_OK(statsMapResult); |
| 252 | EXPECT_EQ((uint64_t)1, statsMapResult.value().rxPackets); |
| 253 | EXPECT_EQ((uint64_t)100, statsMapResult.value().rxBytes); |
| 254 | auto appStatsResult = mFakeAppUidStatsMap.readValue(uid); |
| 255 | EXPECT_RESULT_OK(appStatsResult); |
| 256 | EXPECT_EQ((uint64_t)1, appStatsResult.value().rxPackets); |
| 257 | EXPECT_EQ((uint64_t)100, appStatsResult.value().rxBytes); |
| 258 | } |
Wayne Ma | 7be6bce | 2022-01-12 16:29:49 +0800 | [diff] [blame] | 259 | |
| 260 | Status updateUidOwnerMaps(const std::vector<uint32_t>& appUids, |
| 261 | UidOwnerMatchType matchType, TrafficController::IptOp op) { |
| 262 | Status ret(0); |
| 263 | for (auto uid : appUids) { |
| 264 | ret = mTc.updateUidOwnerMap(uid, matchType, op); |
| 265 | if(!isOk(ret)) break; |
| 266 | } |
| 267 | return ret; |
| 268 | } |
| 269 | |
Ken Chen | 2fb8636 | 2022-06-05 11:39:38 +0800 | [diff] [blame] | 270 | Status dump(bool verbose, std::vector<std::string>& outputLines) { |
| 271 | if (!outputLines.empty()) return statusFromErrno(EUCLEAN, "Output buffer is not empty"); |
| 272 | |
| 273 | android::base::unique_fd localFd, remoteFd; |
| 274 | if (!Pipe(&localFd, &remoteFd)) return statusFromErrno(errno, "Failed on pipe"); |
| 275 | |
| 276 | // dump() blocks until another thread has consumed all its output. |
| 277 | std::thread dumpThread = |
| 278 | std::thread([this, remoteFd{std::move(remoteFd)}, verbose]() { |
| 279 | mTc.dump(remoteFd, verbose); |
| 280 | }); |
| 281 | |
| 282 | std::string dumpContent; |
| 283 | if (!android::base::ReadFdToString(localFd.get(), &dumpContent)) { |
| 284 | return statusFromErrno(errno, "Failed to read dump results from fd"); |
| 285 | } |
| 286 | dumpThread.join(); |
| 287 | |
| 288 | std::stringstream dumpStream(std::move(dumpContent)); |
| 289 | std::string line; |
| 290 | while (std::getline(dumpStream, line)) { |
| 291 | outputLines.push_back(line); |
| 292 | } |
| 293 | |
| 294 | return netdutils::status::ok; |
| 295 | } |
| 296 | |
| 297 | // Strings in the |expect| must exist in dump results in order. But no need to be consecutive. |
| 298 | bool expectDumpsysContains(std::vector<std::string>& expect) { |
| 299 | if (expect.empty()) return false; |
| 300 | |
| 301 | std::vector<std::string> output; |
| 302 | Status result = dump(true, output); |
| 303 | if (!isOk(result)) { |
| 304 | GTEST_LOG_(ERROR) << "TrafficController dump failed: " << netdutils::toString(result); |
| 305 | return false; |
| 306 | } |
| 307 | |
| 308 | int matched = 0; |
| 309 | auto it = expect.begin(); |
| 310 | for (const auto& line : output) { |
| 311 | if (it == expect.end()) break; |
| 312 | if (std::string::npos != line.find(*it)) { |
| 313 | matched++; |
| 314 | ++it; |
| 315 | } |
| 316 | } |
| 317 | return matched == expect.size(); |
| 318 | } |
Wayne Ma | 4d69233 | 2022-01-19 16:04:04 +0800 | [diff] [blame] | 319 | }; |
| 320 | |
Wayne Ma | 4d69233 | 2022-01-19 16:04:04 +0800 | [diff] [blame] | 321 | TEST_F(TrafficControllerTest, TestUpdateOwnerMapEntry) { |
| 322 | uint32_t uid = TEST_UID; |
| 323 | ASSERT_TRUE(isOk(mTc.updateOwnerMapEntry(STANDBY_MATCH, uid, DENY, DENYLIST))); |
| 324 | Result<UidOwnerValue> value = mFakeUidOwnerMap.readValue(uid); |
| 325 | ASSERT_RESULT_OK(value); |
| 326 | ASSERT_TRUE(value.value().rule & STANDBY_MATCH); |
| 327 | |
| 328 | ASSERT_TRUE(isOk(mTc.updateOwnerMapEntry(DOZABLE_MATCH, uid, ALLOW, ALLOWLIST))); |
| 329 | value = mFakeUidOwnerMap.readValue(uid); |
| 330 | ASSERT_RESULT_OK(value); |
| 331 | ASSERT_TRUE(value.value().rule & DOZABLE_MATCH); |
| 332 | |
| 333 | ASSERT_TRUE(isOk(mTc.updateOwnerMapEntry(DOZABLE_MATCH, uid, DENY, ALLOWLIST))); |
| 334 | value = mFakeUidOwnerMap.readValue(uid); |
| 335 | ASSERT_RESULT_OK(value); |
| 336 | ASSERT_FALSE(value.value().rule & DOZABLE_MATCH); |
| 337 | |
| 338 | ASSERT_TRUE(isOk(mTc.updateOwnerMapEntry(STANDBY_MATCH, uid, ALLOW, DENYLIST))); |
| 339 | ASSERT_FALSE(mFakeUidOwnerMap.readValue(uid).ok()); |
| 340 | |
| 341 | uid = TEST_UID2; |
| 342 | ASSERT_FALSE(isOk(mTc.updateOwnerMapEntry(STANDBY_MATCH, uid, ALLOW, DENYLIST))); |
| 343 | ASSERT_FALSE(mFakeUidOwnerMap.readValue(uid).ok()); |
| 344 | } |
| 345 | |
| 346 | TEST_F(TrafficControllerTest, TestChangeUidOwnerRule) { |
| 347 | checkUidOwnerRuleForChain(DOZABLE, DOZABLE_MATCH); |
| 348 | checkUidOwnerRuleForChain(STANDBY, STANDBY_MATCH); |
| 349 | checkUidOwnerRuleForChain(POWERSAVE, POWERSAVE_MATCH); |
| 350 | checkUidOwnerRuleForChain(RESTRICTED, RESTRICTED_MATCH); |
Robert Horvath | d945bf0 | 2022-01-27 19:55:16 +0100 | [diff] [blame] | 351 | checkUidOwnerRuleForChain(LOW_POWER_STANDBY, LOW_POWER_STANDBY_MATCH); |
Motomu Utsumi | b08654c | 2022-05-11 05:56:26 +0000 | [diff] [blame] | 352 | checkUidOwnerRuleForChain(LOCKDOWN, LOCKDOWN_VPN_MATCH); |
Motomu Utsumi | d980149 | 2022-06-01 13:57:27 +0000 | [diff] [blame] | 353 | checkUidOwnerRuleForChain(OEM_DENY_1, OEM_DENY_1_MATCH); |
| 354 | checkUidOwnerRuleForChain(OEM_DENY_2, OEM_DENY_2_MATCH); |
Wayne Ma | 4d69233 | 2022-01-19 16:04:04 +0800 | [diff] [blame] | 355 | ASSERT_EQ(-EINVAL, mTc.changeUidOwnerRule(NONE, TEST_UID, ALLOW, ALLOWLIST)); |
| 356 | ASSERT_EQ(-EINVAL, mTc.changeUidOwnerRule(INVALID_CHAIN, TEST_UID, ALLOW, ALLOWLIST)); |
| 357 | } |
| 358 | |
| 359 | TEST_F(TrafficControllerTest, TestReplaceUidOwnerMap) { |
| 360 | std::vector<int32_t> uids = {TEST_UID, TEST_UID2, TEST_UID3}; |
| 361 | checkUidMapReplace("fw_dozable", uids, DOZABLE_MATCH); |
| 362 | checkUidMapReplace("fw_standby", uids, STANDBY_MATCH); |
| 363 | checkUidMapReplace("fw_powersave", uids, POWERSAVE_MATCH); |
| 364 | checkUidMapReplace("fw_restricted", uids, RESTRICTED_MATCH); |
Robert Horvath | d945bf0 | 2022-01-27 19:55:16 +0100 | [diff] [blame] | 365 | checkUidMapReplace("fw_low_power_standby", uids, LOW_POWER_STANDBY_MATCH); |
Motomu Utsumi | d980149 | 2022-06-01 13:57:27 +0000 | [diff] [blame] | 366 | checkUidMapReplace("fw_oem_deny_1", uids, OEM_DENY_1_MATCH); |
| 367 | checkUidMapReplace("fw_oem_deny_2", uids, OEM_DENY_2_MATCH); |
Wayne Ma | 4d69233 | 2022-01-19 16:04:04 +0800 | [diff] [blame] | 368 | ASSERT_EQ(-EINVAL, mTc.replaceUidOwnerMap("unknow", true, uids)); |
| 369 | } |
| 370 | |
| 371 | TEST_F(TrafficControllerTest, TestReplaceSameChain) { |
| 372 | std::vector<int32_t> uids = {TEST_UID, TEST_UID2, TEST_UID3}; |
| 373 | checkUidMapReplace("fw_dozable", uids, DOZABLE_MATCH); |
| 374 | std::vector<int32_t> newUids = {TEST_UID2, TEST_UID3}; |
| 375 | checkUidMapReplace("fw_dozable", newUids, DOZABLE_MATCH); |
| 376 | } |
| 377 | |
| 378 | TEST_F(TrafficControllerTest, TestDenylistUidMatch) { |
| 379 | std::vector<uint32_t> appUids = {1000, 1001, 10012}; |
Wayne Ma | 7be6bce | 2022-01-12 16:29:49 +0800 | [diff] [blame] | 380 | ASSERT_TRUE(isOk(updateUidOwnerMaps(appUids, PENALTY_BOX_MATCH, |
| 381 | TrafficController::IptOpInsert))); |
Wayne Ma | 4d69233 | 2022-01-19 16:04:04 +0800 | [diff] [blame] | 382 | expectUidOwnerMapValues(appUids, PENALTY_BOX_MATCH, 0); |
Wayne Ma | 7be6bce | 2022-01-12 16:29:49 +0800 | [diff] [blame] | 383 | ASSERT_TRUE(isOk(updateUidOwnerMaps(appUids, PENALTY_BOX_MATCH, |
| 384 | TrafficController::IptOpDelete))); |
Wayne Ma | 4d69233 | 2022-01-19 16:04:04 +0800 | [diff] [blame] | 385 | expectMapEmpty(mFakeUidOwnerMap); |
| 386 | } |
| 387 | |
| 388 | TEST_F(TrafficControllerTest, TestAllowlistUidMatch) { |
| 389 | std::vector<uint32_t> appUids = {1000, 1001, 10012}; |
Wayne Ma | 7be6bce | 2022-01-12 16:29:49 +0800 | [diff] [blame] | 390 | ASSERT_TRUE(isOk(updateUidOwnerMaps(appUids, HAPPY_BOX_MATCH, TrafficController::IptOpInsert))); |
Wayne Ma | 4d69233 | 2022-01-19 16:04:04 +0800 | [diff] [blame] | 391 | expectUidOwnerMapValues(appUids, HAPPY_BOX_MATCH, 0); |
Wayne Ma | 7be6bce | 2022-01-12 16:29:49 +0800 | [diff] [blame] | 392 | ASSERT_TRUE(isOk(updateUidOwnerMaps(appUids, HAPPY_BOX_MATCH, TrafficController::IptOpDelete))); |
Wayne Ma | 4d69233 | 2022-01-19 16:04:04 +0800 | [diff] [blame] | 393 | expectMapEmpty(mFakeUidOwnerMap); |
| 394 | } |
| 395 | |
| 396 | TEST_F(TrafficControllerTest, TestReplaceMatchUid) { |
| 397 | std::vector<uint32_t> appUids = {1000, 1001, 10012}; |
| 398 | // Add appUids to the denylist and expect that their values are all PENALTY_BOX_MATCH. |
Wayne Ma | 7be6bce | 2022-01-12 16:29:49 +0800 | [diff] [blame] | 399 | ASSERT_TRUE(isOk(updateUidOwnerMaps(appUids, PENALTY_BOX_MATCH, |
| 400 | TrafficController::IptOpInsert))); |
Wayne Ma | 4d69233 | 2022-01-19 16:04:04 +0800 | [diff] [blame] | 401 | expectUidOwnerMapValues(appUids, PENALTY_BOX_MATCH, 0); |
| 402 | |
| 403 | // Add the same UIDs to the allowlist and expect that we get PENALTY_BOX_MATCH | |
| 404 | // HAPPY_BOX_MATCH. |
Wayne Ma | 7be6bce | 2022-01-12 16:29:49 +0800 | [diff] [blame] | 405 | ASSERT_TRUE(isOk(updateUidOwnerMaps(appUids, HAPPY_BOX_MATCH, TrafficController::IptOpInsert))); |
Wayne Ma | 4d69233 | 2022-01-19 16:04:04 +0800 | [diff] [blame] | 406 | expectUidOwnerMapValues(appUids, HAPPY_BOX_MATCH | PENALTY_BOX_MATCH, 0); |
| 407 | |
| 408 | // Remove the same UIDs from the allowlist and check the PENALTY_BOX_MATCH is still there. |
Wayne Ma | 7be6bce | 2022-01-12 16:29:49 +0800 | [diff] [blame] | 409 | ASSERT_TRUE(isOk(updateUidOwnerMaps(appUids, HAPPY_BOX_MATCH, TrafficController::IptOpDelete))); |
Wayne Ma | 4d69233 | 2022-01-19 16:04:04 +0800 | [diff] [blame] | 410 | expectUidOwnerMapValues(appUids, PENALTY_BOX_MATCH, 0); |
| 411 | |
| 412 | // Remove the same UIDs from the denylist and check the map is empty. |
Wayne Ma | 7be6bce | 2022-01-12 16:29:49 +0800 | [diff] [blame] | 413 | ASSERT_TRUE(isOk(updateUidOwnerMaps(appUids, PENALTY_BOX_MATCH, |
| 414 | TrafficController::IptOpDelete))); |
Wayne Ma | 4d69233 | 2022-01-19 16:04:04 +0800 | [diff] [blame] | 415 | ASSERT_FALSE(mFakeUidOwnerMap.getFirstKey().ok()); |
| 416 | } |
| 417 | |
| 418 | TEST_F(TrafficControllerTest, TestDeleteWrongMatchSilentlyFails) { |
| 419 | std::vector<uint32_t> appUids = {1000, 1001, 10012}; |
| 420 | // If the uid does not exist in the map, trying to delete a rule about it will fail. |
Wayne Ma | 7be6bce | 2022-01-12 16:29:49 +0800 | [diff] [blame] | 421 | ASSERT_FALSE(isOk(updateUidOwnerMaps(appUids, HAPPY_BOX_MATCH, |
| 422 | TrafficController::IptOpDelete))); |
Wayne Ma | 4d69233 | 2022-01-19 16:04:04 +0800 | [diff] [blame] | 423 | expectMapEmpty(mFakeUidOwnerMap); |
| 424 | |
| 425 | // Add denylist rules for appUids. |
Wayne Ma | 7be6bce | 2022-01-12 16:29:49 +0800 | [diff] [blame] | 426 | ASSERT_TRUE(isOk(updateUidOwnerMaps(appUids, HAPPY_BOX_MATCH, |
| 427 | TrafficController::IptOpInsert))); |
Wayne Ma | 4d69233 | 2022-01-19 16:04:04 +0800 | [diff] [blame] | 428 | expectUidOwnerMapValues(appUids, HAPPY_BOX_MATCH, 0); |
| 429 | |
| 430 | // Delete (non-existent) denylist rules for appUids, and check that this silently does |
| 431 | // nothing if the uid is in the map but does not have denylist match. This is required because |
| 432 | // NetworkManagementService will try to remove a uid from denylist after adding it to the |
| 433 | // allowlist and if the remove fails it will not update the uid status. |
Wayne Ma | 7be6bce | 2022-01-12 16:29:49 +0800 | [diff] [blame] | 434 | ASSERT_TRUE(isOk(updateUidOwnerMaps(appUids, PENALTY_BOX_MATCH, |
| 435 | TrafficController::IptOpDelete))); |
Wayne Ma | 4d69233 | 2022-01-19 16:04:04 +0800 | [diff] [blame] | 436 | expectUidOwnerMapValues(appUids, HAPPY_BOX_MATCH, 0); |
| 437 | } |
| 438 | |
| 439 | TEST_F(TrafficControllerTest, TestAddUidInterfaceFilteringRules) { |
| 440 | int iif0 = 15; |
| 441 | ASSERT_TRUE(isOk(mTc.addUidInterfaceRules(iif0, {1000, 1001}))); |
| 442 | expectUidOwnerMapValues({1000, 1001}, IIF_MATCH, iif0); |
| 443 | |
| 444 | // Add some non-overlapping new uids. They should coexist with existing rules |
| 445 | int iif1 = 16; |
| 446 | ASSERT_TRUE(isOk(mTc.addUidInterfaceRules(iif1, {2000, 2001}))); |
| 447 | expectUidOwnerMapValues({1000, 1001}, IIF_MATCH, iif0); |
| 448 | expectUidOwnerMapValues({2000, 2001}, IIF_MATCH, iif1); |
| 449 | |
| 450 | // Overwrite some existing uids |
| 451 | int iif2 = 17; |
| 452 | ASSERT_TRUE(isOk(mTc.addUidInterfaceRules(iif2, {1000, 2000}))); |
| 453 | expectUidOwnerMapValues({1001}, IIF_MATCH, iif0); |
| 454 | expectUidOwnerMapValues({2001}, IIF_MATCH, iif1); |
| 455 | expectUidOwnerMapValues({1000, 2000}, IIF_MATCH, iif2); |
| 456 | } |
| 457 | |
| 458 | TEST_F(TrafficControllerTest, TestRemoveUidInterfaceFilteringRules) { |
| 459 | int iif0 = 15; |
| 460 | int iif1 = 16; |
| 461 | ASSERT_TRUE(isOk(mTc.addUidInterfaceRules(iif0, {1000, 1001}))); |
| 462 | ASSERT_TRUE(isOk(mTc.addUidInterfaceRules(iif1, {2000, 2001}))); |
| 463 | expectUidOwnerMapValues({1000, 1001}, IIF_MATCH, iif0); |
| 464 | expectUidOwnerMapValues({2000, 2001}, IIF_MATCH, iif1); |
| 465 | |
| 466 | // Rmove some uids |
| 467 | ASSERT_TRUE(isOk(mTc.removeUidInterfaceRules({1001, 2001}))); |
| 468 | expectUidOwnerMapValues({1000}, IIF_MATCH, iif0); |
| 469 | expectUidOwnerMapValues({2000}, IIF_MATCH, iif1); |
| 470 | checkEachUidValue({1000, 2000}, IIF_MATCH); // Make sure there are only two uids remaining |
| 471 | |
| 472 | // Remove non-existent uids shouldn't fail |
| 473 | ASSERT_TRUE(isOk(mTc.removeUidInterfaceRules({2000, 3000}))); |
| 474 | expectUidOwnerMapValues({1000}, IIF_MATCH, iif0); |
| 475 | checkEachUidValue({1000}, IIF_MATCH); // Make sure there are only one uid remaining |
| 476 | |
| 477 | // Remove everything |
| 478 | ASSERT_TRUE(isOk(mTc.removeUidInterfaceRules({1000}))); |
| 479 | expectMapEmpty(mFakeUidOwnerMap); |
| 480 | } |
| 481 | |
| 482 | TEST_F(TrafficControllerTest, TestUidInterfaceFilteringRulesCoexistWithExistingMatches) { |
| 483 | // Set up existing PENALTY_BOX_MATCH rules |
Wayne Ma | 7be6bce | 2022-01-12 16:29:49 +0800 | [diff] [blame] | 484 | ASSERT_TRUE(isOk(updateUidOwnerMaps({1000, 1001, 10012}, PENALTY_BOX_MATCH, |
| 485 | TrafficController::IptOpInsert))); |
Wayne Ma | 4d69233 | 2022-01-19 16:04:04 +0800 | [diff] [blame] | 486 | expectUidOwnerMapValues({1000, 1001, 10012}, PENALTY_BOX_MATCH, 0); |
| 487 | |
| 488 | // Add some partially-overlapping uid owner rules and check result |
| 489 | int iif1 = 32; |
| 490 | ASSERT_TRUE(isOk(mTc.addUidInterfaceRules(iif1, {10012, 10013, 10014}))); |
| 491 | expectUidOwnerMapValues({1000, 1001}, PENALTY_BOX_MATCH, 0); |
| 492 | expectUidOwnerMapValues({10012}, PENALTY_BOX_MATCH | IIF_MATCH, iif1); |
| 493 | expectUidOwnerMapValues({10013, 10014}, IIF_MATCH, iif1); |
| 494 | |
| 495 | // Removing some PENALTY_BOX_MATCH rules should not change uid interface rule |
Wayne Ma | 7be6bce | 2022-01-12 16:29:49 +0800 | [diff] [blame] | 496 | ASSERT_TRUE(isOk(updateUidOwnerMaps({1001, 10012}, PENALTY_BOX_MATCH, |
| 497 | TrafficController::IptOpDelete))); |
Wayne Ma | 4d69233 | 2022-01-19 16:04:04 +0800 | [diff] [blame] | 498 | expectUidOwnerMapValues({1000}, PENALTY_BOX_MATCH, 0); |
| 499 | expectUidOwnerMapValues({10012, 10013, 10014}, IIF_MATCH, iif1); |
| 500 | |
| 501 | // Remove all uid interface rules |
| 502 | ASSERT_TRUE(isOk(mTc.removeUidInterfaceRules({10012, 10013, 10014}))); |
| 503 | expectUidOwnerMapValues({1000}, PENALTY_BOX_MATCH, 0); |
| 504 | // Make sure these are the only uids left |
| 505 | checkEachUidValue({1000}, PENALTY_BOX_MATCH); |
| 506 | } |
| 507 | |
| 508 | TEST_F(TrafficControllerTest, TestUidInterfaceFilteringRulesCoexistWithNewMatches) { |
| 509 | int iif1 = 56; |
| 510 | // Set up existing uid interface rules |
| 511 | ASSERT_TRUE(isOk(mTc.addUidInterfaceRules(iif1, {10001, 10002}))); |
| 512 | expectUidOwnerMapValues({10001, 10002}, IIF_MATCH, iif1); |
| 513 | |
| 514 | // Add some partially-overlapping doze rules |
| 515 | EXPECT_EQ(0, mTc.replaceUidOwnerMap("fw_dozable", true, {10002, 10003})); |
| 516 | expectUidOwnerMapValues({10001}, IIF_MATCH, iif1); |
| 517 | expectUidOwnerMapValues({10002}, DOZABLE_MATCH | IIF_MATCH, iif1); |
| 518 | expectUidOwnerMapValues({10003}, DOZABLE_MATCH, 0); |
| 519 | |
| 520 | // Introduce a third rule type (powersave) on various existing UIDs |
| 521 | EXPECT_EQ(0, mTc.replaceUidOwnerMap("fw_powersave", true, {10000, 10001, 10002, 10003})); |
| 522 | expectUidOwnerMapValues({10000}, POWERSAVE_MATCH, 0); |
| 523 | expectUidOwnerMapValues({10001}, POWERSAVE_MATCH | IIF_MATCH, iif1); |
| 524 | expectUidOwnerMapValues({10002}, POWERSAVE_MATCH | DOZABLE_MATCH | IIF_MATCH, iif1); |
| 525 | expectUidOwnerMapValues({10003}, POWERSAVE_MATCH | DOZABLE_MATCH, 0); |
| 526 | |
| 527 | // Remove all doze rules |
| 528 | EXPECT_EQ(0, mTc.replaceUidOwnerMap("fw_dozable", true, {})); |
| 529 | expectUidOwnerMapValues({10000}, POWERSAVE_MATCH, 0); |
| 530 | expectUidOwnerMapValues({10001}, POWERSAVE_MATCH | IIF_MATCH, iif1); |
| 531 | expectUidOwnerMapValues({10002}, POWERSAVE_MATCH | IIF_MATCH, iif1); |
| 532 | expectUidOwnerMapValues({10003}, POWERSAVE_MATCH, 0); |
| 533 | |
| 534 | // Remove all powersave rules, expect ownerMap to only have uid interface rules left |
| 535 | EXPECT_EQ(0, mTc.replaceUidOwnerMap("fw_powersave", true, {})); |
| 536 | expectUidOwnerMapValues({10001, 10002}, IIF_MATCH, iif1); |
| 537 | // Make sure these are the only uids left |
| 538 | checkEachUidValue({10001, 10002}, IIF_MATCH); |
| 539 | } |
| 540 | |
Motomu Utsumi | b08654c | 2022-05-11 05:56:26 +0000 | [diff] [blame] | 541 | TEST_F(TrafficControllerTest, TestAddUidInterfaceFilteringRulesWithWildcard) { |
| 542 | // iif=0 is a wildcard |
| 543 | int iif = 0; |
| 544 | // Add interface rule with wildcard to uids |
| 545 | ASSERT_TRUE(isOk(mTc.addUidInterfaceRules(iif, {1000, 1001}))); |
| 546 | expectUidOwnerMapValues({1000, 1001}, IIF_MATCH, iif); |
| 547 | } |
| 548 | |
| 549 | TEST_F(TrafficControllerTest, TestRemoveUidInterfaceFilteringRulesWithWildcard) { |
| 550 | // iif=0 is a wildcard |
| 551 | int iif = 0; |
| 552 | // Add interface rule with wildcard to two uids |
| 553 | ASSERT_TRUE(isOk(mTc.addUidInterfaceRules(iif, {1000, 1001}))); |
| 554 | expectUidOwnerMapValues({1000, 1001}, IIF_MATCH, iif); |
| 555 | |
| 556 | // Remove interface rule from one of the uids |
| 557 | ASSERT_TRUE(isOk(mTc.removeUidInterfaceRules({1000}))); |
| 558 | expectUidOwnerMapValues({1001}, IIF_MATCH, iif); |
| 559 | checkEachUidValue({1001}, IIF_MATCH); |
| 560 | |
| 561 | // Remove interface rule from the remaining uid |
| 562 | ASSERT_TRUE(isOk(mTc.removeUidInterfaceRules({1001}))); |
| 563 | expectMapEmpty(mFakeUidOwnerMap); |
| 564 | } |
| 565 | |
| 566 | TEST_F(TrafficControllerTest, TestUidInterfaceFilteringRulesWithWildcardAndExistingMatches) { |
| 567 | // Set up existing DOZABLE_MATCH and POWERSAVE_MATCH rule |
| 568 | ASSERT_TRUE(isOk(updateUidOwnerMaps({1000}, DOZABLE_MATCH, |
| 569 | TrafficController::IptOpInsert))); |
| 570 | ASSERT_TRUE(isOk(updateUidOwnerMaps({1000}, POWERSAVE_MATCH, |
| 571 | TrafficController::IptOpInsert))); |
| 572 | |
| 573 | // iif=0 is a wildcard |
| 574 | int iif = 0; |
| 575 | // Add interface rule with wildcard to the existing uid |
| 576 | ASSERT_TRUE(isOk(mTc.addUidInterfaceRules(iif, {1000}))); |
| 577 | expectUidOwnerMapValues({1000}, POWERSAVE_MATCH | DOZABLE_MATCH | IIF_MATCH, iif); |
| 578 | |
| 579 | // Remove interface rule with wildcard from the existing uid |
| 580 | ASSERT_TRUE(isOk(mTc.removeUidInterfaceRules({1000}))); |
| 581 | expectUidOwnerMapValues({1000}, POWERSAVE_MATCH | DOZABLE_MATCH, 0); |
| 582 | } |
| 583 | |
| 584 | TEST_F(TrafficControllerTest, TestUidInterfaceFilteringRulesWithWildcardAndNewMatches) { |
| 585 | // iif=0 is a wildcard |
| 586 | int iif = 0; |
| 587 | // Set up existing interface rule with wildcard |
| 588 | ASSERT_TRUE(isOk(mTc.addUidInterfaceRules(iif, {1000}))); |
| 589 | |
| 590 | // Add DOZABLE_MATCH and POWERSAVE_MATCH rule to the existing uid |
| 591 | ASSERT_TRUE(isOk(updateUidOwnerMaps({1000}, DOZABLE_MATCH, |
| 592 | TrafficController::IptOpInsert))); |
| 593 | ASSERT_TRUE(isOk(updateUidOwnerMaps({1000}, POWERSAVE_MATCH, |
| 594 | TrafficController::IptOpInsert))); |
| 595 | expectUidOwnerMapValues({1000}, POWERSAVE_MATCH | DOZABLE_MATCH | IIF_MATCH, iif); |
| 596 | |
| 597 | // Remove DOZABLE_MATCH and POWERSAVE_MATCH rule from the existing uid |
| 598 | ASSERT_TRUE(isOk(updateUidOwnerMaps({1000}, DOZABLE_MATCH, |
| 599 | TrafficController::IptOpDelete))); |
| 600 | ASSERT_TRUE(isOk(updateUidOwnerMaps({1000}, POWERSAVE_MATCH, |
| 601 | TrafficController::IptOpDelete))); |
| 602 | expectUidOwnerMapValues({1000}, IIF_MATCH, iif); |
| 603 | } |
| 604 | |
Wayne Ma | 4d69233 | 2022-01-19 16:04:04 +0800 | [diff] [blame] | 605 | TEST_F(TrafficControllerTest, TestGrantInternetPermission) { |
| 606 | std::vector<uid_t> appUids = {TEST_UID, TEST_UID2, TEST_UID3}; |
| 607 | |
| 608 | mTc.setPermissionForUids(INetd::PERMISSION_INTERNET, appUids); |
| 609 | expectMapEmpty(mFakeUidPermissionMap); |
| 610 | expectPrivilegedUserSetEmpty(); |
| 611 | } |
| 612 | |
| 613 | TEST_F(TrafficControllerTest, TestRevokeInternetPermission) { |
| 614 | std::vector<uid_t> appUids = {TEST_UID, TEST_UID2, TEST_UID3}; |
| 615 | |
| 616 | mTc.setPermissionForUids(INetd::PERMISSION_NONE, appUids); |
| 617 | expectUidPermissionMapValues(appUids, INetd::PERMISSION_NONE); |
| 618 | } |
| 619 | |
| 620 | TEST_F(TrafficControllerTest, TestPermissionUninstalled) { |
| 621 | std::vector<uid_t> appUids = {TEST_UID, TEST_UID2, TEST_UID3}; |
| 622 | |
| 623 | mTc.setPermissionForUids(INetd::PERMISSION_UPDATE_DEVICE_STATS, appUids); |
| 624 | expectUidPermissionMapValues(appUids, INetd::PERMISSION_UPDATE_DEVICE_STATS); |
| 625 | expectPrivilegedUserSet(appUids); |
| 626 | |
| 627 | std::vector<uid_t> uidToRemove = {TEST_UID}; |
| 628 | mTc.setPermissionForUids(INetd::PERMISSION_UNINSTALLED, uidToRemove); |
| 629 | |
| 630 | std::vector<uid_t> uidRemain = {TEST_UID3, TEST_UID2}; |
| 631 | expectUidPermissionMapValues(uidRemain, INetd::PERMISSION_UPDATE_DEVICE_STATS); |
| 632 | expectPrivilegedUserSet(uidRemain); |
| 633 | |
| 634 | mTc.setPermissionForUids(INetd::PERMISSION_UNINSTALLED, uidRemain); |
| 635 | expectMapEmpty(mFakeUidPermissionMap); |
| 636 | expectPrivilegedUserSetEmpty(); |
| 637 | } |
| 638 | |
| 639 | TEST_F(TrafficControllerTest, TestGrantUpdateStatsPermission) { |
| 640 | std::vector<uid_t> appUids = {TEST_UID, TEST_UID2, TEST_UID3}; |
| 641 | |
| 642 | mTc.setPermissionForUids(INetd::PERMISSION_UPDATE_DEVICE_STATS, appUids); |
| 643 | expectUidPermissionMapValues(appUids, INetd::PERMISSION_UPDATE_DEVICE_STATS); |
| 644 | expectPrivilegedUserSet(appUids); |
| 645 | |
| 646 | mTc.setPermissionForUids(INetd::PERMISSION_NONE, appUids); |
| 647 | expectPrivilegedUserSetEmpty(); |
| 648 | expectUidPermissionMapValues(appUids, INetd::PERMISSION_NONE); |
| 649 | } |
| 650 | |
| 651 | TEST_F(TrafficControllerTest, TestRevokeUpdateStatsPermission) { |
| 652 | std::vector<uid_t> appUids = {TEST_UID, TEST_UID2, TEST_UID3}; |
| 653 | |
| 654 | mTc.setPermissionForUids(INetd::PERMISSION_UPDATE_DEVICE_STATS, appUids); |
| 655 | expectPrivilegedUserSet(appUids); |
| 656 | |
| 657 | std::vector<uid_t> uidToRemove = {TEST_UID}; |
| 658 | mTc.setPermissionForUids(INetd::PERMISSION_NONE, uidToRemove); |
| 659 | |
| 660 | std::vector<uid_t> uidRemain = {TEST_UID3, TEST_UID2}; |
| 661 | expectPrivilegedUserSet(uidRemain); |
| 662 | |
| 663 | mTc.setPermissionForUids(INetd::PERMISSION_NONE, uidRemain); |
| 664 | expectPrivilegedUserSetEmpty(); |
| 665 | } |
| 666 | |
| 667 | TEST_F(TrafficControllerTest, TestGrantWrongPermission) { |
| 668 | std::vector<uid_t> appUids = {TEST_UID, TEST_UID2, TEST_UID3}; |
| 669 | |
| 670 | mTc.setPermissionForUids(INetd::PERMISSION_NONE, appUids); |
| 671 | expectPrivilegedUserSetEmpty(); |
| 672 | expectUidPermissionMapValues(appUids, INetd::PERMISSION_NONE); |
| 673 | } |
| 674 | |
| 675 | TEST_F(TrafficControllerTest, TestGrantDuplicatePermissionSlientlyFail) { |
| 676 | std::vector<uid_t> appUids = {TEST_UID, TEST_UID2, TEST_UID3}; |
| 677 | |
| 678 | mTc.setPermissionForUids(INetd::PERMISSION_INTERNET, appUids); |
| 679 | expectMapEmpty(mFakeUidPermissionMap); |
| 680 | |
| 681 | std::vector<uid_t> uidToAdd = {TEST_UID}; |
| 682 | mTc.setPermissionForUids(INetd::PERMISSION_INTERNET, uidToAdd); |
| 683 | |
| 684 | expectPrivilegedUserSetEmpty(); |
| 685 | |
| 686 | mTc.setPermissionForUids(INetd::PERMISSION_NONE, appUids); |
| 687 | expectUidPermissionMapValues(appUids, INetd::PERMISSION_NONE); |
| 688 | |
| 689 | mTc.setPermissionForUids(INetd::PERMISSION_UPDATE_DEVICE_STATS, appUids); |
| 690 | expectPrivilegedUserSet(appUids); |
| 691 | |
| 692 | mTc.setPermissionForUids(INetd::PERMISSION_UPDATE_DEVICE_STATS, uidToAdd); |
| 693 | expectPrivilegedUserSet(appUids); |
| 694 | |
| 695 | mTc.setPermissionForUids(INetd::PERMISSION_NONE, appUids); |
| 696 | expectPrivilegedUserSetEmpty(); |
| 697 | } |
| 698 | |
Ken Chen | 2fb8636 | 2022-06-05 11:39:38 +0800 | [diff] [blame] | 699 | TEST_F(TrafficControllerTest, TestDumpsys) { |
| 700 | std::vector<uid_t> appUid = {TEST_UID}; |
| 701 | mTc.setPermissionForUids(INetd::PERMISSION_NONE, appUid); |
| 702 | std::vector<uid_t> appUid2 = {TEST_UID2}; |
| 703 | mTc.setPermissionForUids(INetd::PERMISSION_UPDATE_DEVICE_STATS, appUid2); |
| 704 | |
| 705 | std::vector<std::string> expectedLines = { |
| 706 | "mUidPermissionMap:", |
| 707 | fmt::format("{} BPF_PERMISSION_UPDATE_DEVICE_STATS", TEST_UID2), |
| 708 | fmt::format("{} PERMISSION_NONE", TEST_UID), |
| 709 | "mPrivilegedUser:", |
| 710 | fmt::format("{} ALLOW_UPDATE_DEVICE_STATS", TEST_UID2)}; |
| 711 | EXPECT_TRUE(expectDumpsysContains(expectedLines)); |
| 712 | |
| 713 | mTc.setPermissionForUids(INetd::PERMISSION_INTERNET, {TEST_UID, TEST_UID2}); |
| 714 | expectedLines = { |
| 715 | "mUidPermissionMap:", |
| 716 | "mPrivilegedUser:", |
| 717 | }; |
| 718 | EXPECT_TRUE(expectDumpsysContains(expectedLines)); |
| 719 | } |
| 720 | |
Ken Chen | 77a6b71 | 2022-06-06 12:46:36 +0800 | [diff] [blame^] | 721 | TEST_F(TrafficControllerTest, getFirewallType) { |
| 722 | static const struct TestConfig { |
| 723 | ChildChain childChain; |
| 724 | FirewallType firewallType; |
| 725 | } testConfigs[] = { |
| 726 | // clang-format off |
| 727 | {NONE, DENYLIST}, |
| 728 | {DOZABLE, ALLOWLIST}, |
| 729 | {STANDBY, DENYLIST}, |
| 730 | {POWERSAVE, ALLOWLIST}, |
| 731 | {RESTRICTED, ALLOWLIST}, |
| 732 | {LOW_POWER_STANDBY, ALLOWLIST}, |
| 733 | {LOCKDOWN, DENYLIST}, |
| 734 | {OEM_DENY_1, DENYLIST}, |
| 735 | {OEM_DENY_2, DENYLIST}, |
| 736 | {INVALID_CHAIN, DENYLIST}, |
| 737 | // clang-format on |
| 738 | }; |
| 739 | |
| 740 | for (const auto& config : testConfigs) { |
| 741 | SCOPED_TRACE(fmt::format("testConfig: [{}, {}]", config.childChain, config.firewallType)); |
| 742 | EXPECT_EQ(config.firewallType, mTc.getFirewallType(config.childChain)); |
| 743 | } |
| 744 | } |
| 745 | |
Patrick Rohr | 61e9467 | 2022-02-01 21:06:40 +0100 | [diff] [blame] | 746 | constexpr uint32_t SOCK_CLOSE_WAIT_US = 30 * 1000; |
| 747 | constexpr uint32_t ENOBUFS_POLL_WAIT_US = 10 * 1000; |
| 748 | |
| 749 | using android::base::Error; |
| 750 | using android::base::Result; |
| 751 | using android::bpf::BpfMap; |
| 752 | |
| 753 | // This test set up a SkDestroyListener that is running parallel with the production |
| 754 | // SkDestroyListener. The test will create thousands of sockets and tag them on the |
| 755 | // production cookieUidTagMap and close them in a short time. When the number of |
| 756 | // sockets get closed exceeds the buffer size, it will start to return ENOBUFF |
| 757 | // error. The error will be ignored by the production SkDestroyListener and the |
| 758 | // test will clean up the tags in tearDown if there is any remains. |
| 759 | |
| 760 | // TODO: Instead of test the ENOBUFF error, we can test the production |
| 761 | // SkDestroyListener to see if it failed to delete a tagged socket when ENOBUFF |
| 762 | // triggered. |
| 763 | class NetlinkListenerTest : public testing::Test { |
| 764 | protected: |
| 765 | NetlinkListenerTest() {} |
| 766 | BpfMap<uint64_t, UidTagValue> mCookieTagMap; |
| 767 | |
| 768 | void SetUp() { |
Maciej Żenczykowski | ced3531 | 2022-05-31 05:11:12 -0700 | [diff] [blame] | 769 | mCookieTagMap.init(COOKIE_TAG_MAP_PATH); |
Patrick Rohr | 61e9467 | 2022-02-01 21:06:40 +0100 | [diff] [blame] | 770 | ASSERT_TRUE(mCookieTagMap.isValid()); |
| 771 | } |
| 772 | |
| 773 | void TearDown() { |
| 774 | const auto deleteTestCookieEntries = [](const uint64_t& key, const UidTagValue& value, |
| 775 | BpfMap<uint64_t, UidTagValue>& map) { |
| 776 | if ((value.uid == TEST_UID) && (value.tag == TEST_TAG)) { |
| 777 | Result<void> res = map.deleteValue(key); |
| 778 | if (res.ok() || (res.error().code() == ENOENT)) { |
| 779 | return Result<void>(); |
| 780 | } |
Maciej Żenczykowski | e0f5846 | 2022-05-17 13:59:22 -0700 | [diff] [blame] | 781 | ALOGE("Failed to delete data(cookie = %" PRIu64 "): %s", key, |
Patrick Rohr | 61e9467 | 2022-02-01 21:06:40 +0100 | [diff] [blame] | 782 | strerror(res.error().code())); |
| 783 | } |
| 784 | // Move forward to next cookie in the map. |
| 785 | return Result<void>(); |
| 786 | }; |
| 787 | EXPECT_RESULT_OK(mCookieTagMap.iterateWithValue(deleteTestCookieEntries)); |
| 788 | } |
| 789 | |
| 790 | Result<void> checkNoGarbageTagsExist() { |
| 791 | const auto checkGarbageTags = [](const uint64_t&, const UidTagValue& value, |
| 792 | const BpfMap<uint64_t, UidTagValue>&) -> Result<void> { |
| 793 | if ((TEST_UID == value.uid) && (TEST_TAG == value.tag)) { |
| 794 | return Error(EUCLEAN) << "Closed socket is not untagged"; |
| 795 | } |
| 796 | return {}; |
| 797 | }; |
| 798 | return mCookieTagMap.iterateWithValue(checkGarbageTags); |
| 799 | } |
| 800 | |
| 801 | bool checkMassiveSocketDestroy(int totalNumber, bool expectError) { |
| 802 | std::unique_ptr<android::netdutils::NetlinkListenerInterface> skDestroyListener; |
| 803 | auto result = android::net::TrafficController::makeSkDestroyListener(); |
| 804 | if (!isOk(result)) { |
| 805 | ALOGE("Unable to create SkDestroyListener: %s", toString(result).c_str()); |
| 806 | } else { |
| 807 | skDestroyListener = std::move(result.value()); |
| 808 | } |
| 809 | int rxErrorCount = 0; |
| 810 | // Rx handler extracts nfgenmsg looks up and invokes registered dispatch function. |
| 811 | const auto rxErrorHandler = [&rxErrorCount](const int, const int) { rxErrorCount++; }; |
| 812 | skDestroyListener->registerSkErrorHandler(rxErrorHandler); |
| 813 | int fds[totalNumber]; |
| 814 | for (int i = 0; i < totalNumber; i++) { |
| 815 | fds[i] = socket(AF_INET, SOCK_STREAM | SOCK_CLOEXEC, 0); |
| 816 | // The likely reason for a failure is running out of available file descriptors. |
| 817 | EXPECT_LE(0, fds[i]) << i << " of " << totalNumber; |
| 818 | if (fds[i] < 0) { |
| 819 | // EXPECT_LE already failed above, so test case is a failure, but we don't |
| 820 | // want potentially tens of thousands of extra failures creating and then |
| 821 | // closing all these fds cluttering up the logs. |
| 822 | totalNumber = i; |
| 823 | break; |
| 824 | }; |
| 825 | libnetd_updatable_tagSocket(fds[i], TEST_TAG, TEST_UID, 1000); |
| 826 | } |
| 827 | |
| 828 | // TODO: Use a separate thread that has its own fd table so we can |
| 829 | // close sockets even faster simply by terminating that thread. |
| 830 | for (int i = 0; i < totalNumber; i++) { |
| 831 | EXPECT_EQ(0, close(fds[i])); |
| 832 | } |
| 833 | // wait a bit for netlink listener to handle all the messages. |
| 834 | usleep(SOCK_CLOSE_WAIT_US); |
| 835 | if (expectError) { |
| 836 | // If ENOBUFS triggered, check it only called into the handler once, ie. |
| 837 | // that the netlink handler is not spinning. |
| 838 | int currentErrorCount = rxErrorCount; |
| 839 | // 0 error count is acceptable because the system has chances to close all sockets |
| 840 | // normally. |
| 841 | EXPECT_LE(0, rxErrorCount); |
| 842 | if (!rxErrorCount) return true; |
| 843 | |
| 844 | usleep(ENOBUFS_POLL_WAIT_US); |
| 845 | EXPECT_EQ(currentErrorCount, rxErrorCount); |
| 846 | } else { |
| 847 | EXPECT_RESULT_OK(checkNoGarbageTagsExist()); |
| 848 | EXPECT_EQ(0, rxErrorCount); |
| 849 | } |
| 850 | return false; |
| 851 | } |
| 852 | }; |
| 853 | |
| 854 | TEST_F(NetlinkListenerTest, TestAllSocketUntagged) { |
| 855 | checkMassiveSocketDestroy(10, false); |
| 856 | checkMassiveSocketDestroy(100, false); |
| 857 | } |
| 858 | |
| 859 | // Disabled because flaky on blueline-userdebug; this test relies on the main thread |
| 860 | // winning a race against the NetlinkListener::run() thread. There's no way to ensure |
| 861 | // things will be scheduled the same way across all architectures and test environments. |
| 862 | TEST_F(NetlinkListenerTest, DISABLED_TestSkDestroyError) { |
| 863 | bool needRetry = false; |
| 864 | int retryCount = 0; |
| 865 | do { |
| 866 | needRetry = checkMassiveSocketDestroy(32500, true); |
| 867 | if (needRetry) retryCount++; |
| 868 | } while (needRetry && retryCount < 3); |
| 869 | // Should review test if it can always close all sockets correctly. |
| 870 | EXPECT_GT(3, retryCount); |
| 871 | } |
| 872 | |
| 873 | |
Wayne Ma | 4d69233 | 2022-01-19 16:04:04 +0800 | [diff] [blame] | 874 | } // namespace net |
| 875 | } // namespace android |