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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "net/dns/dns_response.h" | |
| 6 | |
| 7 #include "base/time/time.h" | |
| 8 #include "net/base/address_list.h" | |
| 9 #include "net/base/io_buffer.h" | |
| 10 #include "net/base/net_util.h" | |
| 11 #include "net/dns/dns_protocol.h" | |
| 12 #include "net/dns/dns_query.h" | |
| 13 #include "net/dns/dns_test_util.h" | |
| 14 #include "testing/gtest/include/gtest/gtest.h" | |
| 15 | |
| 16 namespace net { | |
| 17 | |
| 18 namespace { | |
| 19 | |
| 20 TEST(DnsRecordParserTest, Constructor) { | |
| 21 const char data[] = { 0 }; | |
| 22 | |
| 23 EXPECT_FALSE(DnsRecordParser().IsValid()); | |
| 24 EXPECT_TRUE(DnsRecordParser(data, 1, 0).IsValid()); | |
| 25 EXPECT_TRUE(DnsRecordParser(data, 1, 1).IsValid()); | |
| 26 | |
| 27 EXPECT_FALSE(DnsRecordParser(data, 1, 0).AtEnd()); | |
| 28 EXPECT_TRUE(DnsRecordParser(data, 1, 1).AtEnd()); | |
| 29 } | |
| 30 | |
| 31 TEST(DnsRecordParserTest, ReadName) { | |
| 32 const uint8 data[] = { | |
| 33 // all labels "foo.example.com" | |
| 34 0x03, 'f', 'o', 'o', | |
| 35 0x07, 'e', 'x', 'a', 'm', 'p', 'l', 'e', | |
| 36 0x03, 'c', 'o', 'm', | |
| 37 // byte 0x10 | |
| 38 0x00, | |
| 39 // byte 0x11 | |
| 40 // part label, part pointer, "bar.example.com" | |
| 41 0x03, 'b', 'a', 'r', | |
| 42 0xc0, 0x04, | |
| 43 // byte 0x17 | |
| 44 // all pointer to "bar.example.com", 2 jumps | |
| 45 0xc0, 0x11, | |
| 46 // byte 0x1a | |
| 47 }; | |
| 48 | |
| 49 std::string out; | |
| 50 DnsRecordParser parser(data, sizeof(data), 0); | |
| 51 ASSERT_TRUE(parser.IsValid()); | |
| 52 | |
| 53 EXPECT_EQ(0x11u, parser.ReadName(data + 0x00, &out)); | |
| 54 EXPECT_EQ("foo.example.com", out); | |
| 55 // Check that the last "." is never stored. | |
| 56 out.clear(); | |
| 57 EXPECT_EQ(0x1u, parser.ReadName(data + 0x10, &out)); | |
| 58 EXPECT_EQ("", out); | |
| 59 out.clear(); | |
| 60 EXPECT_EQ(0x6u, parser.ReadName(data + 0x11, &out)); | |
| 61 EXPECT_EQ("bar.example.com", out); | |
| 62 out.clear(); | |
| 63 EXPECT_EQ(0x2u, parser.ReadName(data + 0x17, &out)); | |
| 64 EXPECT_EQ("bar.example.com", out); | |
| 65 | |
| 66 // Parse name without storing it. | |
| 67 EXPECT_EQ(0x11u, parser.ReadName(data + 0x00, NULL)); | |
| 68 EXPECT_EQ(0x1u, parser.ReadName(data + 0x10, NULL)); | |
| 69 EXPECT_EQ(0x6u, parser.ReadName(data + 0x11, NULL)); | |
| 70 EXPECT_EQ(0x2u, parser.ReadName(data + 0x17, NULL)); | |
| 71 | |
| 72 // Check that it works even if initial position is different. | |
| 73 parser = DnsRecordParser(data, sizeof(data), 0x12); | |
| 74 EXPECT_EQ(0x6u, parser.ReadName(data + 0x11, NULL)); | |
| 75 } | |
| 76 | |
| 77 TEST(DnsRecordParserTest, ReadNameFail) { | |
| 78 const uint8 data[] = { | |
| 79 // label length beyond packet | |
| 80 0x30, 'x', 'x', | |
| 81 0x00, | |
| 82 // pointer offset beyond packet | |
| 83 0xc0, 0x20, | |
| 84 // pointer loop | |
| 85 0xc0, 0x08, | |
| 86 0xc0, 0x06, | |
| 87 // incorrect label type (currently supports only direct and pointer) | |
| 88 0x80, 0x00, | |
| 89 // truncated name (missing root label) | |
| 90 0x02, 'x', 'x', | |
| 91 }; | |
| 92 | |
| 93 DnsRecordParser parser(data, sizeof(data), 0); | |
| 94 ASSERT_TRUE(parser.IsValid()); | |
| 95 | |
| 96 std::string out; | |
| 97 EXPECT_EQ(0u, parser.ReadName(data + 0x00, &out)); | |
| 98 EXPECT_EQ(0u, parser.ReadName(data + 0x04, &out)); | |
| 99 EXPECT_EQ(0u, parser.ReadName(data + 0x08, &out)); | |
| 100 EXPECT_EQ(0u, parser.ReadName(data + 0x0a, &out)); | |
| 101 EXPECT_EQ(0u, parser.ReadName(data + 0x0c, &out)); | |
| 102 EXPECT_EQ(0u, parser.ReadName(data + 0x0e, &out)); | |
| 103 } | |
| 104 | |
| 105 TEST(DnsRecordParserTest, ReadRecord) { | |
| 106 const uint8 data[] = { | |
| 107 // Type CNAME record. | |
| 108 0x07, 'e', 'x', 'a', 'm', 'p', 'l', 'e', | |
| 109 0x03, 'c', 'o', 'm', | |
| 110 0x00, | |
| 111 0x00, 0x05, // TYPE is CNAME. | |
| 112 0x00, 0x01, // CLASS is IN. | |
| 113 0x00, 0x01, 0x24, 0x74, // TTL is 0x00012474. | |
| 114 0x00, 0x06, // RDLENGTH is 6 bytes. | |
| 115 0x03, 'f', 'o', 'o', // compressed name in record | |
| 116 0xc0, 0x00, | |
| 117 // Type A record. | |
| 118 0x03, 'b', 'a', 'r', // compressed owner name | |
| 119 0xc0, 0x00, | |
| 120 0x00, 0x01, // TYPE is A. | |
| 121 0x00, 0x01, // CLASS is IN. | |
| 122 0x00, 0x20, 0x13, 0x55, // TTL is 0x00201355. | |
| 123 0x00, 0x04, // RDLENGTH is 4 bytes. | |
| 124 0x7f, 0x02, 0x04, 0x01, // IP is 127.2.4.1 | |
| 125 }; | |
| 126 | |
| 127 std::string out; | |
| 128 DnsRecordParser parser(data, sizeof(data), 0); | |
| 129 | |
| 130 DnsResourceRecord record; | |
| 131 EXPECT_TRUE(parser.ReadRecord(&record)); | |
| 132 EXPECT_EQ("example.com", record.name); | |
| 133 EXPECT_EQ(dns_protocol::kTypeCNAME, record.type); | |
| 134 EXPECT_EQ(dns_protocol::kClassIN, record.klass); | |
| 135 EXPECT_EQ(0x00012474u, record.ttl); | |
| 136 EXPECT_EQ(6u, record.rdata.length()); | |
| 137 EXPECT_EQ(6u, parser.ReadName(record.rdata.data(), &out)); | |
| 138 EXPECT_EQ("foo.example.com", out); | |
| 139 EXPECT_FALSE(parser.AtEnd()); | |
| 140 | |
| 141 EXPECT_TRUE(parser.ReadRecord(&record)); | |
| 142 EXPECT_EQ("bar.example.com", record.name); | |
| 143 EXPECT_EQ(dns_protocol::kTypeA, record.type); | |
| 144 EXPECT_EQ(dns_protocol::kClassIN, record.klass); | |
| 145 EXPECT_EQ(0x00201355u, record.ttl); | |
| 146 EXPECT_EQ(4u, record.rdata.length()); | |
| 147 EXPECT_EQ(base::StringPiece("\x7f\x02\x04\x01"), record.rdata); | |
| 148 EXPECT_TRUE(parser.AtEnd()); | |
| 149 | |
| 150 // Test truncated record. | |
| 151 parser = DnsRecordParser(data, sizeof(data) - 2, 0); | |
| 152 EXPECT_TRUE(parser.ReadRecord(&record)); | |
| 153 EXPECT_FALSE(parser.AtEnd()); | |
| 154 EXPECT_FALSE(parser.ReadRecord(&record)); | |
| 155 } | |
| 156 | |
| 157 TEST(DnsResponseTest, InitParse) { | |
| 158 // This includes \0 at the end. | |
| 159 const char qname_data[] = "\x0A""codereview""\x08""chromium""\x03""org"; | |
| 160 const base::StringPiece qname(qname_data, sizeof(qname_data)); | |
| 161 // Compilers want to copy when binding temporary to const &, so must use heap. | |
| 162 scoped_ptr<DnsQuery> query(new DnsQuery(0xcafe, qname, dns_protocol::kTypeA)); | |
| 163 | |
| 164 const uint8 response_data[] = { | |
| 165 // Header | |
| 166 0xca, 0xfe, // ID | |
| 167 0x81, 0x80, // Standard query response, RA, no error | |
| 168 0x00, 0x01, // 1 question | |
| 169 0x00, 0x02, // 2 RRs (answers) | |
| 170 0x00, 0x00, // 0 authority RRs | |
| 171 0x00, 0x00, // 0 additional RRs | |
| 172 | |
| 173 // Question | |
| 174 // This part is echoed back from the respective query. | |
| 175 0x0a, 'c', 'o', 'd', 'e', 'r', 'e', 'v', 'i', 'e', 'w', | |
| 176 0x08, 'c', 'h', 'r', 'o', 'm', 'i', 'u', 'm', | |
| 177 0x03, 'o', 'r', 'g', | |
| 178 0x00, | |
| 179 0x00, 0x01, // TYPE is A. | |
| 180 0x00, 0x01, // CLASS is IN. | |
| 181 | |
| 182 // Answer 1 | |
| 183 0xc0, 0x0c, // NAME is a pointer to name in Question section. | |
| 184 0x00, 0x05, // TYPE is CNAME. | |
| 185 0x00, 0x01, // CLASS is IN. | |
| 186 0x00, 0x01, // TTL (4 bytes) is 20 hours, 47 minutes, 48 seconds. | |
| 187 0x24, 0x74, | |
| 188 0x00, 0x12, // RDLENGTH is 18 bytes. | |
| 189 // ghs.l.google.com in DNS format. | |
| 190 0x03, 'g', 'h', 's', | |
| 191 0x01, 'l', | |
| 192 0x06, 'g', 'o', 'o', 'g', 'l', 'e', | |
| 193 0x03, 'c', 'o', 'm', | |
| 194 0x00, | |
| 195 | |
| 196 // Answer 2 | |
| 197 0xc0, 0x35, // NAME is a pointer to name in Answer 1. | |
| 198 0x00, 0x01, // TYPE is A. | |
| 199 0x00, 0x01, // CLASS is IN. | |
| 200 0x00, 0x00, // TTL (4 bytes) is 53 seconds. | |
| 201 0x00, 0x35, | |
| 202 0x00, 0x04, // RDLENGTH is 4 bytes. | |
| 203 0x4a, 0x7d, // RDATA is the IP: 74.125.95.121 | |
| 204 0x5f, 0x79, | |
| 205 }; | |
| 206 | |
| 207 DnsResponse resp; | |
| 208 memcpy(resp.io_buffer()->data(), response_data, sizeof(response_data)); | |
| 209 | |
| 210 // Reject too short. | |
| 211 EXPECT_FALSE(resp.InitParse(query->io_buffer()->size() - 1, *query)); | |
| 212 EXPECT_FALSE(resp.IsValid()); | |
| 213 | |
| 214 // Reject wrong id. | |
| 215 scoped_ptr<DnsQuery> other_query(query->CloneWithNewId(0xbeef)); | |
| 216 EXPECT_FALSE(resp.InitParse(sizeof(response_data), *other_query)); | |
| 217 EXPECT_FALSE(resp.IsValid()); | |
| 218 | |
| 219 // Reject wrong question. | |
| 220 scoped_ptr<DnsQuery> wrong_query( | |
| 221 new DnsQuery(0xcafe, qname, dns_protocol::kTypeCNAME)); | |
| 222 EXPECT_FALSE(resp.InitParse(sizeof(response_data), *wrong_query)); | |
| 223 EXPECT_FALSE(resp.IsValid()); | |
| 224 | |
| 225 // Accept matching question. | |
| 226 EXPECT_TRUE(resp.InitParse(sizeof(response_data), *query)); | |
| 227 EXPECT_TRUE(resp.IsValid()); | |
| 228 | |
| 229 // Check header access. | |
| 230 EXPECT_EQ(0x8180, resp.flags()); | |
| 231 EXPECT_EQ(0x0, resp.rcode()); | |
| 232 EXPECT_EQ(2u, resp.answer_count()); | |
| 233 | |
| 234 // Check question access. | |
| 235 EXPECT_EQ(query->qname(), resp.qname()); | |
| 236 EXPECT_EQ(query->qtype(), resp.qtype()); | |
| 237 EXPECT_EQ("codereview.chromium.org", resp.GetDottedName()); | |
| 238 | |
| 239 DnsResourceRecord record; | |
| 240 DnsRecordParser parser = resp.Parser(); | |
| 241 EXPECT_TRUE(parser.ReadRecord(&record)); | |
| 242 EXPECT_FALSE(parser.AtEnd()); | |
| 243 EXPECT_TRUE(parser.ReadRecord(&record)); | |
| 244 EXPECT_TRUE(parser.AtEnd()); | |
| 245 EXPECT_FALSE(parser.ReadRecord(&record)); | |
| 246 } | |
| 247 | |
| 248 TEST(DnsResponseTest, InitParseWithoutQuery) { | |
| 249 DnsResponse resp; | |
| 250 memcpy(resp.io_buffer()->data(), kT0ResponseDatagram, | |
| 251 sizeof(kT0ResponseDatagram)); | |
| 252 | |
| 253 // Accept matching question. | |
| 254 EXPECT_TRUE(resp.InitParseWithoutQuery(sizeof(kT0ResponseDatagram))); | |
| 255 EXPECT_TRUE(resp.IsValid()); | |
| 256 | |
| 257 // Check header access. | |
| 258 EXPECT_EQ(0x8180, resp.flags()); | |
| 259 EXPECT_EQ(0x0, resp.rcode()); | |
| 260 EXPECT_EQ(kT0RecordCount, resp.answer_count()); | |
| 261 | |
| 262 // Check question access. | |
| 263 EXPECT_EQ(kT0Qtype, resp.qtype()); | |
| 264 EXPECT_EQ(kT0HostName, resp.GetDottedName()); | |
| 265 | |
| 266 DnsResourceRecord record; | |
| 267 DnsRecordParser parser = resp.Parser(); | |
| 268 for (unsigned i = 0; i < kT0RecordCount; i ++) { | |
| 269 EXPECT_FALSE(parser.AtEnd()); | |
| 270 EXPECT_TRUE(parser.ReadRecord(&record)); | |
| 271 } | |
| 272 EXPECT_TRUE(parser.AtEnd()); | |
| 273 EXPECT_FALSE(parser.ReadRecord(&record)); | |
| 274 } | |
| 275 | |
| 276 TEST(DnsResponseTest, InitParseWithoutQueryNoQuestions) { | |
| 277 const uint8 response_data[] = { | |
| 278 // Header | |
| 279 0xca, 0xfe, // ID | |
| 280 0x81, 0x80, // Standard query response, RA, no error | |
| 281 0x00, 0x00, // No question | |
| 282 0x00, 0x01, // 2 RRs (answers) | |
| 283 0x00, 0x00, // 0 authority RRs | |
| 284 0x00, 0x00, // 0 additional RRs | |
| 285 | |
| 286 // Answer 1 | |
| 287 0x0a, 'c', 'o', 'd', 'e', 'r', 'e', 'v', 'i', 'e', 'w', | |
| 288 0x08, 'c', 'h', 'r', 'o', 'm', 'i', 'u', 'm', | |
| 289 0x03, 'o', 'r', 'g', | |
| 290 0x00, | |
| 291 0x00, 0x01, // TYPE is A. | |
| 292 0x00, 0x01, // CLASS is IN. | |
| 293 0x00, 0x00, // TTL (4 bytes) is 53 seconds. | |
| 294 0x00, 0x35, | |
| 295 0x00, 0x04, // RDLENGTH is 4 bytes. | |
| 296 0x4a, 0x7d, // RDATA is the IP: 74.125.95.121 | |
| 297 0x5f, 0x79, | |
| 298 }; | |
| 299 | |
| 300 DnsResponse resp; | |
| 301 memcpy(resp.io_buffer()->data(), response_data, sizeof(response_data)); | |
| 302 | |
| 303 EXPECT_TRUE(resp.InitParseWithoutQuery(sizeof(response_data))); | |
| 304 | |
| 305 // Check header access. | |
| 306 EXPECT_EQ(0x8180, resp.flags()); | |
| 307 EXPECT_EQ(0x0, resp.rcode()); | |
| 308 EXPECT_EQ(0x1u, resp.answer_count()); | |
| 309 | |
| 310 DnsResourceRecord record; | |
| 311 DnsRecordParser parser = resp.Parser(); | |
| 312 | |
| 313 EXPECT_FALSE(parser.AtEnd()); | |
| 314 EXPECT_TRUE(parser.ReadRecord(&record)); | |
| 315 EXPECT_EQ("codereview.chromium.org", record.name); | |
| 316 EXPECT_EQ(0x00000035u, record.ttl); | |
| 317 EXPECT_EQ(dns_protocol::kTypeA, record.type); | |
| 318 | |
| 319 EXPECT_TRUE(parser.AtEnd()); | |
| 320 EXPECT_FALSE(parser.ReadRecord(&record)); | |
| 321 } | |
| 322 | |
| 323 TEST(DnsResponseTest, InitParseWithoutQueryTwoQuestions) { | |
| 324 const uint8 response_data[] = { | |
| 325 // Header | |
| 326 0xca, 0xfe, // ID | |
| 327 0x81, 0x80, // Standard query response, RA, no error | |
| 328 0x00, 0x02, // 2 questions | |
| 329 0x00, 0x01, // 2 RRs (answers) | |
| 330 0x00, 0x00, // 0 authority RRs | |
| 331 0x00, 0x00, // 0 additional RRs | |
| 332 | |
| 333 // Question 1 | |
| 334 0x0a, 'c', 'o', 'd', 'e', 'r', 'e', 'v', 'i', 'e', 'w', | |
| 335 0x08, 'c', 'h', 'r', 'o', 'm', 'i', 'u', 'm', | |
| 336 0x03, 'o', 'r', 'g', | |
| 337 0x00, | |
| 338 0x00, 0x01, // TYPE is A. | |
| 339 0x00, 0x01, // CLASS is IN. | |
| 340 | |
| 341 // Question 2 | |
| 342 0x0b, 'c', 'o', 'd', 'e', 'r', 'e', 'v', 'i', 'e', 'w', '2', | |
| 343 0xc0, 0x18, // pointer to "chromium.org" | |
| 344 0x00, 0x01, // TYPE is A. | |
| 345 0x00, 0x01, // CLASS is IN. | |
| 346 | |
| 347 // Answer 1 | |
| 348 0xc0, 0x0c, // NAME is a pointer to name in Question section. | |
| 349 0x00, 0x01, // TYPE is A. | |
| 350 0x00, 0x01, // CLASS is IN. | |
| 351 0x00, 0x00, // TTL (4 bytes) is 53 seconds. | |
| 352 0x00, 0x35, | |
| 353 0x00, 0x04, // RDLENGTH is 4 bytes. | |
| 354 0x4a, 0x7d, // RDATA is the IP: 74.125.95.121 | |
| 355 0x5f, 0x79, | |
| 356 }; | |
| 357 | |
| 358 DnsResponse resp; | |
| 359 memcpy(resp.io_buffer()->data(), response_data, sizeof(response_data)); | |
| 360 | |
| 361 EXPECT_TRUE(resp.InitParseWithoutQuery(sizeof(response_data))); | |
| 362 | |
| 363 // Check header access. | |
| 364 EXPECT_EQ(0x8180, resp.flags()); | |
| 365 EXPECT_EQ(0x0, resp.rcode()); | |
| 366 EXPECT_EQ(0x01u, resp.answer_count()); | |
| 367 | |
| 368 DnsResourceRecord record; | |
| 369 DnsRecordParser parser = resp.Parser(); | |
| 370 | |
| 371 EXPECT_FALSE(parser.AtEnd()); | |
| 372 EXPECT_TRUE(parser.ReadRecord(&record)); | |
| 373 EXPECT_EQ("codereview.chromium.org", record.name); | |
| 374 EXPECT_EQ(0x35u, record.ttl); | |
| 375 EXPECT_EQ(dns_protocol::kTypeA, record.type); | |
| 376 | |
| 377 EXPECT_TRUE(parser.AtEnd()); | |
| 378 EXPECT_FALSE(parser.ReadRecord(&record)); | |
| 379 } | |
| 380 | |
| 381 TEST(DnsResponseTest, InitParseWithoutQueryPacketTooShort) { | |
| 382 const uint8 response_data[] = { | |
| 383 // Header | |
| 384 0xca, 0xfe, // ID | |
| 385 0x81, 0x80, // Standard query response, RA, no error | |
| 386 0x00, 0x00, // No question | |
| 387 }; | |
| 388 | |
| 389 DnsResponse resp; | |
| 390 memcpy(resp.io_buffer()->data(), response_data, sizeof(response_data)); | |
| 391 | |
| 392 EXPECT_FALSE(resp.InitParseWithoutQuery(sizeof(response_data))); | |
| 393 } | |
| 394 | |
| 395 void VerifyAddressList(const std::vector<const char*>& ip_addresses, | |
| 396 const AddressList& addrlist) { | |
| 397 ASSERT_EQ(ip_addresses.size(), addrlist.size()); | |
| 398 | |
| 399 for (size_t i = 0; i < addrlist.size(); ++i) { | |
| 400 EXPECT_EQ(ip_addresses[i], addrlist[i].ToStringWithoutPort()); | |
| 401 } | |
| 402 } | |
| 403 | |
| 404 TEST(DnsResponseTest, ParseToAddressList) { | |
| 405 const struct TestCase { | |
| 406 size_t query_size; | |
| 407 const uint8* response_data; | |
| 408 size_t response_size; | |
| 409 const char* const* expected_addresses; | |
| 410 size_t num_expected_addresses; | |
| 411 const char* expected_cname; | |
| 412 int expected_ttl_sec; | |
| 413 } cases[] = { | |
| 414 { | |
| 415 kT0QuerySize, | |
| 416 kT0ResponseDatagram, arraysize(kT0ResponseDatagram), | |
| 417 kT0IpAddresses, arraysize(kT0IpAddresses), | |
| 418 kT0CanonName, | |
| 419 kT0TTL, | |
| 420 }, | |
| 421 { | |
| 422 kT1QuerySize, | |
| 423 kT1ResponseDatagram, arraysize(kT1ResponseDatagram), | |
| 424 kT1IpAddresses, arraysize(kT1IpAddresses), | |
| 425 kT1CanonName, | |
| 426 kT1TTL, | |
| 427 }, | |
| 428 { | |
| 429 kT2QuerySize, | |
| 430 kT2ResponseDatagram, arraysize(kT2ResponseDatagram), | |
| 431 kT2IpAddresses, arraysize(kT2IpAddresses), | |
| 432 kT2CanonName, | |
| 433 kT2TTL, | |
| 434 }, | |
| 435 { | |
| 436 kT3QuerySize, | |
| 437 kT3ResponseDatagram, arraysize(kT3ResponseDatagram), | |
| 438 kT3IpAddresses, arraysize(kT3IpAddresses), | |
| 439 kT3CanonName, | |
| 440 kT3TTL, | |
| 441 }, | |
| 442 }; | |
| 443 | |
| 444 for (size_t i = 0; i < arraysize(cases); ++i) { | |
| 445 const TestCase& t = cases[i]; | |
| 446 DnsResponse response(t.response_data, t.response_size, t.query_size); | |
| 447 AddressList addr_list; | |
| 448 base::TimeDelta ttl; | |
| 449 EXPECT_EQ(DnsResponse::DNS_PARSE_OK, | |
| 450 response.ParseToAddressList(&addr_list, &ttl)); | |
| 451 std::vector<const char*> expected_addresses( | |
| 452 t.expected_addresses, | |
| 453 t.expected_addresses + t.num_expected_addresses); | |
| 454 VerifyAddressList(expected_addresses, addr_list); | |
| 455 EXPECT_EQ(t.expected_cname, addr_list.canonical_name()); | |
| 456 EXPECT_EQ(base::TimeDelta::FromSeconds(t.expected_ttl_sec), ttl); | |
| 457 } | |
| 458 } | |
| 459 | |
| 460 const uint8 kResponseTruncatedRecord[] = { | |
| 461 // Header: 1 question, 1 answer RR | |
| 462 0x00, 0x00, 0x81, 0x80, 0x00, 0x01, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, | |
| 463 // Question: name = 'a', type = A (0x1) | |
| 464 0x01, 'a', 0x00, 0x00, 0x01, 0x00, 0x01, | |
| 465 // Answer: name = 'a', type = A, TTL = 0xFF, RDATA = 10.10.10.10 | |
| 466 0x01, 'a', 0x00, 0x00, 0x01, 0x00, 0x01, 0x00, 0x00, 0x00, 0xFF, | |
| 467 0x00, 0x04, 0x0A, 0x0A, 0x0A, // Truncated RDATA. | |
| 468 }; | |
| 469 | |
| 470 const uint8 kResponseTruncatedCNAME[] = { | |
| 471 // Header: 1 question, 1 answer RR | |
| 472 0x00, 0x00, 0x81, 0x80, 0x00, 0x01, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, | |
| 473 // Question: name = 'a', type = A (0x1) | |
| 474 0x01, 'a', 0x00, 0x00, 0x01, 0x00, 0x01, | |
| 475 // Answer: name = 'a', type = CNAME, TTL = 0xFF, RDATA = 'foo' (truncated) | |
| 476 0x01, 'a', 0x00, 0x00, 0x05, 0x00, 0x01, 0x00, 0x00, 0x00, 0xFF, | |
| 477 0x00, 0x03, 0x03, 'f', 'o', // Truncated name. | |
| 478 }; | |
| 479 | |
| 480 const uint8 kResponseNameMismatch[] = { | |
| 481 // Header: 1 question, 1 answer RR | |
| 482 0x00, 0x00, 0x81, 0x80, 0x00, 0x01, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, | |
| 483 // Question: name = 'a', type = A (0x1) | |
| 484 0x01, 'a', 0x00, 0x00, 0x01, 0x00, 0x01, | |
| 485 // Answer: name = 'b', type = A, TTL = 0xFF, RDATA = 10.10.10.10 | |
| 486 0x01, 'b', 0x00, 0x00, 0x01, 0x00, 0x01, 0x00, 0x00, 0x00, 0xFF, | |
| 487 0x00, 0x04, 0x0A, 0x0A, 0x0A, 0x0A, | |
| 488 }; | |
| 489 | |
| 490 const uint8 kResponseNameMismatchInChain[] = { | |
| 491 // Header: 1 question, 3 answer RR | |
| 492 0x00, 0x00, 0x81, 0x80, 0x00, 0x01, 0x00, 0x03, 0x00, 0x00, 0x00, 0x00, | |
| 493 // Question: name = 'a', type = A (0x1) | |
| 494 0x01, 'a', 0x00, 0x00, 0x01, 0x00, 0x01, | |
| 495 // Answer: name = 'a', type = CNAME, TTL = 0xFF, RDATA = 'b' | |
| 496 0x01, 'a', 0x00, 0x00, 0x05, 0x00, 0x01, 0x00, 0x00, 0x00, 0xFF, | |
| 497 0x00, 0x03, 0x01, 'b', 0x00, | |
| 498 // Answer: name = 'b', type = A, TTL = 0xFF, RDATA = 10.10.10.10 | |
| 499 0x01, 'b', 0x00, 0x00, 0x01, 0x00, 0x01, 0x00, 0x00, 0x00, 0xFF, | |
| 500 0x00, 0x04, 0x0A, 0x0A, 0x0A, 0x0A, | |
| 501 // Answer: name = 'c', type = A, TTL = 0xFF, RDATA = 10.10.10.11 | |
| 502 0x01, 'c', 0x00, 0x00, 0x01, 0x00, 0x01, 0x00, 0x00, 0x00, 0xFF, | |
| 503 0x00, 0x04, 0x0A, 0x0A, 0x0A, 0x0B, | |
| 504 }; | |
| 505 | |
| 506 const uint8 kResponseSizeMismatch[] = { | |
| 507 // Header: 1 answer RR | |
| 508 0x00, 0x00, 0x81, 0x80, 0x00, 0x01, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, | |
| 509 // Question: name = 'a', type = AAAA (0x1c) | |
| 510 0x01, 'a', 0x00, 0x00, 0x1c, 0x00, 0x01, | |
| 511 // Answer: name = 'a', type = AAAA, TTL = 0xFF, RDATA = 10.10.10.10 | |
| 512 0x01, 'a', 0x00, 0x00, 0x1c, 0x00, 0x01, 0x00, 0x00, 0x00, 0xFF, | |
| 513 0x00, 0x04, 0x0A, 0x0A, 0x0A, 0x0A, | |
| 514 }; | |
| 515 | |
| 516 const uint8 kResponseCNAMEAfterAddress[] = { | |
| 517 // Header: 2 answer RR | |
| 518 0x00, 0x00, 0x81, 0x80, 0x00, 0x01, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, | |
| 519 // Question: name = 'a', type = A (0x1) | |
| 520 0x01, 'a', 0x00, 0x00, 0x01, 0x00, 0x01, | |
| 521 // Answer: name = 'a', type = A, TTL = 0xFF, RDATA = 10.10.10.10. | |
| 522 0x01, 'a', 0x00, 0x00, 0x01, 0x00, 0x01, 0x00, 0x00, 0x00, 0xFF, | |
| 523 0x00, 0x04, 0x0A, 0x0A, 0x0A, 0x0A, | |
| 524 // Answer: name = 'a', type = CNAME, TTL = 0xFF, RDATA = 'b' | |
| 525 0x01, 'a', 0x00, 0x00, 0x05, 0x00, 0x01, 0x00, 0x00, 0x00, 0xFF, | |
| 526 0x00, 0x03, 0x01, 'b', 0x00, | |
| 527 }; | |
| 528 | |
| 529 const uint8 kResponseNoAddresses[] = { | |
| 530 // Header: 1 question, 1 answer RR, 1 authority RR | |
| 531 0x00, 0x00, 0x81, 0x80, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, | |
| 532 // Question: name = 'a', type = A (0x1) | |
| 533 0x01, 'a', 0x00, 0x00, 0x01, 0x00, 0x01, | |
| 534 // Answer: name = 'a', type = CNAME, TTL = 0xFF, RDATA = 'b' | |
| 535 0x01, 'a', 0x00, 0x00, 0x05, 0x00, 0x01, 0x00, 0x00, 0x00, 0xFF, | |
| 536 0x00, 0x03, 0x01, 'b', 0x00, | |
| 537 // Authority section | |
| 538 // Answer: name = 'b', type = A, TTL = 0xFF, RDATA = 10.10.10.10 | |
| 539 0x01, 'b', 0x00, 0x00, 0x01, 0x00, 0x01, 0x00, 0x00, 0x00, 0xFF, | |
| 540 0x00, 0x04, 0x0A, 0x0A, 0x0A, 0x0A, | |
| 541 }; | |
| 542 | |
| 543 TEST(DnsResponseTest, ParseToAddressListFail) { | |
| 544 const struct TestCase { | |
| 545 const uint8* data; | |
| 546 size_t size; | |
| 547 DnsResponse::Result expected_result; | |
| 548 } cases[] = { | |
| 549 { kResponseTruncatedRecord, arraysize(kResponseTruncatedRecord), | |
| 550 DnsResponse::DNS_MALFORMED_RESPONSE }, | |
| 551 { kResponseTruncatedCNAME, arraysize(kResponseTruncatedCNAME), | |
| 552 DnsResponse::DNS_MALFORMED_CNAME }, | |
| 553 { kResponseNameMismatch, arraysize(kResponseNameMismatch), | |
| 554 DnsResponse::DNS_NAME_MISMATCH }, | |
| 555 { kResponseNameMismatchInChain, arraysize(kResponseNameMismatchInChain), | |
| 556 DnsResponse::DNS_NAME_MISMATCH }, | |
| 557 { kResponseSizeMismatch, arraysize(kResponseSizeMismatch), | |
| 558 DnsResponse::DNS_SIZE_MISMATCH }, | |
| 559 { kResponseCNAMEAfterAddress, arraysize(kResponseCNAMEAfterAddress), | |
| 560 DnsResponse::DNS_CNAME_AFTER_ADDRESS }, | |
| 561 // Not actually a failure, just an empty result. | |
| 562 { kResponseNoAddresses, arraysize(kResponseNoAddresses), | |
| 563 DnsResponse::DNS_PARSE_OK }, | |
| 564 }; | |
| 565 | |
| 566 const size_t kQuerySize = 12 + 7; | |
| 567 | |
| 568 for (size_t i = 0; i < arraysize(cases); ++i) { | |
| 569 const TestCase& t = cases[i]; | |
| 570 | |
| 571 DnsResponse response(t.data, t.size, kQuerySize); | |
| 572 AddressList addr_list; | |
| 573 base::TimeDelta ttl; | |
| 574 EXPECT_EQ(t.expected_result, | |
| 575 response.ParseToAddressList(&addr_list, &ttl)); | |
| 576 } | |
| 577 } | |
| 578 | |
| 579 } // namespace | |
| 580 | |
| 581 } // namespace net | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 992733002:
Remove //net (except for Android test stuff) and sdch (Closed)
Base URL: git@github.com:domokit/mojo.git@master