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| 1 // Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file | |
| 2 // for details. All rights reserved. Use of this source code is governed by a | |
| 3 // BSD-style license that can be found in the LICENSE file. | |
| 4 | |
| 5 #if !defined(DART_IO_DISABLED) && !defined(DART_IO_SECURE_SOCKET_DISABLED) | |
| 6 | |
| 7 #include "platform/globals.h" | |
| 8 #if defined(HOST_OS_MACOS) && !HOST_OS_IOS | |
| 9 | |
| 10 #include "bin/secure_socket.h" | |
| 11 #include "bin/secure_socket_macos.h" | |
| 12 | |
| 13 #include <errno.h> | |
| 14 #include <fcntl.h> | |
| 15 #include <sys/stat.h> | |
| 16 #include <sys/syslimits.h> | |
| 17 #include <stdio.h> | |
| 18 #include <string.h> | |
| 19 | |
| 20 #include <CoreFoundation/CoreFoundation.h> | |
| 21 #include <Security/SecureTransport.h> | |
| 22 #include <Security/Security.h> | |
| 23 | |
| 24 #include "bin/builtin.h" | |
| 25 #include "bin/dartutils.h" | |
| 26 #include "bin/lockers.h" | |
| 27 #include "bin/log.h" | |
| 28 #include "bin/socket.h" | |
| 29 #include "bin/thread.h" | |
| 30 #include "bin/utils.h" | |
| 31 | |
| 32 #include "platform/text_buffer.h" | |
| 33 #include "platform/utils.h" | |
| 34 | |
| 35 #include "include/dart_api.h" | |
| 36 | |
| 37 // Return the error from the containing function if handle is an error handle. | |
| 38 #define RETURN_IF_ERROR(handle) \ | |
| 39 { \ | |
| 40 Dart_Handle __handle = handle; \ | |
| 41 if (Dart_IsError((__handle))) { \ | |
| 42 return __handle; \ | |
| 43 } \ | |
| 44 } | |
| 45 | |
| 46 // We need to access this private API function to create a SecIdentityRef | |
| 47 // without writing a custom keychain to the filesystem. This is the approach | |
| 48 // taken in WebKit: | |
| 49 // https://webkit.googlesource.com/WebKit/+/master/Source/WebKit2/Shared/cf/Argu
mentCodersCF.cpp | |
| 50 extern "C" { | |
| 51 SecIdentityRef SecIdentityCreate(CFAllocatorRef allocator, | |
| 52 SecCertificateRef certificate, | |
| 53 SecKeyRef private_key); | |
| 54 } | |
| 55 | |
| 56 namespace dart { | |
| 57 namespace bin { | |
| 58 | |
| 59 static const int kSSLFilterNativeFieldIndex = 0; | |
| 60 static const int kSecurityContextNativeFieldIndex = 0; | |
| 61 static const int kX509NativeFieldIndex = 0; | |
| 62 | |
| 63 static const bool SSL_LOG_STATUS = false; | |
| 64 static const bool SSL_LOG_DATA = false; | |
| 65 static const bool SSL_LOG_CERTS = false; | |
| 66 static const int SSL_ERROR_MESSAGE_BUFFER_SIZE = 1000; | |
| 67 static const intptr_t PEM_BUFSIZE = 1024; | |
| 68 | |
| 69 static char* CFStringRefToCString(CFStringRef cfstring) { | |
| 70 CFIndex len = CFStringGetLength(cfstring); | |
| 71 CFIndex max_len = | |
| 72 CFStringGetMaximumSizeForEncoding(len, kCFStringEncodingUTF8) + 1; | |
| 73 char* result = reinterpret_cast<char*>(Dart_ScopeAllocate(max_len)); | |
| 74 ASSERT(result != NULL); | |
| 75 bool success = | |
| 76 CFStringGetCString(cfstring, result, max_len, kCFStringEncodingUTF8); | |
| 77 return success ? result : NULL; | |
| 78 } | |
| 79 | |
| 80 | |
| 81 // Handle an error reported from the SecureTransport library. | |
| 82 static void ThrowIOException(OSStatus status, | |
| 83 const char* exception_type, | |
| 84 const char* message) { | |
| 85 TextBuffer status_message(SSL_ERROR_MESSAGE_BUFFER_SIZE); | |
| 86 CFStringRef error_string = SecCopyErrorMessageString(status, NULL); | |
| 87 if (error_string == NULL) { | |
| 88 status_message.Printf("OSStatus = %ld: https://www.osstatus.com", | |
| 89 static_cast<intptr_t>(status)); | |
| 90 } else { | |
| 91 char* error = CFStringRefToCString(error_string); | |
| 92 status_message.Printf("OSStatus = %ld: %s", static_cast<intptr_t>(status), | |
| 93 error); | |
| 94 CFRelease(error_string); | |
| 95 } | |
| 96 OSError os_error_struct(status, status_message.buf(), OSError::kBoringSSL); | |
| 97 Dart_Handle os_error = DartUtils::NewDartOSError(&os_error_struct); | |
| 98 Dart_Handle exception = | |
| 99 DartUtils::NewDartIOException(exception_type, message, os_error); | |
| 100 ASSERT(!Dart_IsError(exception)); | |
| 101 Dart_ThrowException(exception); | |
| 102 UNREACHABLE(); | |
| 103 } | |
| 104 | |
| 105 | |
| 106 static void CheckStatus(OSStatus status, | |
| 107 const char* type, | |
| 108 const char* message) { | |
| 109 if (status == noErr) { | |
| 110 return; | |
| 111 } | |
| 112 ThrowIOException(status, type, message); | |
| 113 } | |
| 114 | |
| 115 | |
| 116 static SSLFilter* GetFilter(Dart_NativeArguments args) { | |
| 117 SSLFilter* filter; | |
| 118 Dart_Handle dart_this = ThrowIfError(Dart_GetNativeArgument(args, 0)); | |
| 119 ASSERT(Dart_IsInstance(dart_this)); | |
| 120 ThrowIfError( | |
| 121 Dart_GetNativeInstanceField(dart_this, kSSLFilterNativeFieldIndex, | |
| 122 reinterpret_cast<intptr_t*>(&filter))); | |
| 123 return filter; | |
| 124 } | |
| 125 | |
| 126 | |
| 127 static void DeleteFilter(void* isolate_data, | |
| 128 Dart_WeakPersistentHandle handle, | |
| 129 void* context_pointer) { | |
| 130 SSLFilter* filter = reinterpret_cast<SSLFilter*>(context_pointer); | |
| 131 filter->Release(); | |
| 132 } | |
| 133 | |
| 134 | |
| 135 static Dart_Handle SetFilter(Dart_NativeArguments args, SSLFilter* filter) { | |
| 136 ASSERT(filter != NULL); | |
| 137 const int approximate_size_of_filter = 1500; | |
| 138 Dart_Handle dart_this = Dart_GetNativeArgument(args, 0); | |
| 139 RETURN_IF_ERROR(dart_this); | |
| 140 ASSERT(Dart_IsInstance(dart_this)); | |
| 141 Dart_Handle err = | |
| 142 Dart_SetNativeInstanceField(dart_this, kSSLFilterNativeFieldIndex, | |
| 143 reinterpret_cast<intptr_t>(filter)); | |
| 144 RETURN_IF_ERROR(err); | |
| 145 Dart_NewWeakPersistentHandle(dart_this, reinterpret_cast<void*>(filter), | |
| 146 approximate_size_of_filter, DeleteFilter); | |
| 147 return Dart_Null(); | |
| 148 } | |
| 149 | |
| 150 | |
| 151 static SSLCertContext* GetSecurityContext(Dart_NativeArguments args) { | |
| 152 SSLCertContext* context; | |
| 153 Dart_Handle dart_this = ThrowIfError(Dart_GetNativeArgument(args, 0)); | |
| 154 ASSERT(Dart_IsInstance(dart_this)); | |
| 155 ThrowIfError( | |
| 156 Dart_GetNativeInstanceField(dart_this, kSecurityContextNativeFieldIndex, | |
| 157 reinterpret_cast<intptr_t*>(&context))); | |
| 158 return context; | |
| 159 } | |
| 160 | |
| 161 | |
| 162 static void DeleteCertContext(void* isolate_data, | |
| 163 Dart_WeakPersistentHandle handle, | |
| 164 void* context_pointer) { | |
| 165 SSLCertContext* context = static_cast<SSLCertContext*>(context_pointer); | |
| 166 context->Release(); | |
| 167 } | |
| 168 | |
| 169 | |
| 170 static Dart_Handle SetSecurityContext(Dart_NativeArguments args, | |
| 171 SSLCertContext* context) { | |
| 172 const int approximate_size_of_context = 1500; | |
| 173 Dart_Handle dart_this = Dart_GetNativeArgument(args, 0); | |
| 174 RETURN_IF_ERROR(dart_this); | |
| 175 ASSERT(Dart_IsInstance(dart_this)); | |
| 176 Dart_Handle err = | |
| 177 Dart_SetNativeInstanceField(dart_this, kSecurityContextNativeFieldIndex, | |
| 178 reinterpret_cast<intptr_t>(context)); | |
| 179 RETURN_IF_ERROR(err); | |
| 180 Dart_NewWeakPersistentHandle(dart_this, context, approximate_size_of_context, | |
| 181 DeleteCertContext); | |
| 182 return Dart_Null(); | |
| 183 } | |
| 184 | |
| 185 | |
| 186 static SecCertificateRef GetX509Certificate(Dart_NativeArguments args) { | |
| 187 SecCertificateRef certificate; | |
| 188 Dart_Handle dart_this = ThrowIfError(Dart_GetNativeArgument(args, 0)); | |
| 189 ASSERT(Dart_IsInstance(dart_this)); | |
| 190 ThrowIfError( | |
| 191 Dart_GetNativeInstanceField(dart_this, kX509NativeFieldIndex, | |
| 192 reinterpret_cast<intptr_t*>(&certificate))); | |
| 193 return certificate; | |
| 194 } | |
| 195 | |
| 196 | |
| 197 static void ReleaseCertificate(void* isolate_data, | |
| 198 Dart_WeakPersistentHandle handle, | |
| 199 void* context_pointer) { | |
| 200 SecCertificateRef cert = reinterpret_cast<SecCertificateRef>(context_pointer); | |
| 201 CFRelease(cert); | |
| 202 } | |
| 203 | |
| 204 | |
| 205 static Dart_Handle WrappedX509Certificate(SecCertificateRef certificate) { | |
| 206 const intptr_t approximate_size_of_certificate = 1500; | |
| 207 if (certificate == NULL) { | |
| 208 return Dart_Null(); | |
| 209 } | |
| 210 Dart_Handle x509_type = | |
| 211 DartUtils::GetDartType(DartUtils::kIOLibURL, "X509Certificate"); | |
| 212 if (Dart_IsError(x509_type)) { | |
| 213 return x509_type; | |
| 214 } | |
| 215 Dart_Handle arguments[] = {NULL}; | |
| 216 | |
| 217 Dart_Handle result = | |
| 218 Dart_New(x509_type, DartUtils::NewString("_"), 0, arguments); | |
| 219 if (Dart_IsError(result)) { | |
| 220 return result; | |
| 221 } | |
| 222 ASSERT(Dart_IsInstance(result)); | |
| 223 | |
| 224 // CFRetain in case the returned Dart object outlives the SecurityContext. | |
| 225 // CFRelease is in the Dart object's finalizer | |
| 226 CFRetain(certificate); | |
| 227 Dart_NewWeakPersistentHandle(result, reinterpret_cast<void*>(certificate), | |
| 228 approximate_size_of_certificate, | |
| 229 ReleaseCertificate); | |
| 230 | |
| 231 Dart_Handle status = Dart_SetNativeInstanceField( | |
| 232 result, kX509NativeFieldIndex, reinterpret_cast<intptr_t>(certificate)); | |
| 233 if (Dart_IsError(status)) { | |
| 234 return status; | |
| 235 } | |
| 236 return result; | |
| 237 } | |
| 238 | |
| 239 | |
| 240 static const char* GetPasswordArgument(Dart_NativeArguments args, | |
| 241 intptr_t index) { | |
| 242 Dart_Handle password_object = | |
| 243 ThrowIfError(Dart_GetNativeArgument(args, index)); | |
| 244 const char* password = NULL; | |
| 245 if (Dart_IsString(password_object)) { | |
| 246 ThrowIfError(Dart_StringToCString(password_object, &password)); | |
| 247 if (strlen(password) > PEM_BUFSIZE - 1) { | |
| 248 Dart_ThrowException(DartUtils::NewDartArgumentError( | |
| 249 "Password length is greater than 1023 bytes.")); | |
| 250 } | |
| 251 } else if (Dart_IsNull(password_object)) { | |
| 252 password = ""; | |
| 253 } else { | |
| 254 Dart_ThrowException( | |
| 255 DartUtils::NewDartArgumentError("Password is not a String or null")); | |
| 256 } | |
| 257 return password; | |
| 258 } | |
| 259 | |
| 260 | |
| 261 static OSStatus GetKeyAndCerts(CFArrayRef items, | |
| 262 CFIndex items_length, | |
| 263 CFArrayRef* out_certs, | |
| 264 SecKeyRef* out_key) { | |
| 265 OSStatus status = noErr; | |
| 266 | |
| 267 // Loop through the items, take only the first private key/identity, ignore | |
| 268 // any others, populate out_certs. | |
| 269 CFMutableArrayRef certs = | |
| 270 CFArrayCreateMutable(NULL, 0, &kCFTypeArrayCallBacks); | |
| 271 SecKeyRef key = NULL; | |
| 272 | |
| 273 for (CFIndex i = 0; i < items_length; ++i) { | |
| 274 CFTypeRef item = | |
| 275 reinterpret_cast<CFTypeRef>(CFArrayGetValueAtIndex(items, i)); | |
| 276 CFTypeID item_type = CFGetTypeID(item); | |
| 277 if (item_type == SecCertificateGetTypeID()) { | |
| 278 if (SSL_LOG_CERTS) { | |
| 279 Log::Print("\titem %ld: Certificate\n", i); | |
| 280 } | |
| 281 CFArrayAppendValue(certs, item); | |
| 282 } else if ((item_type == SecKeyGetTypeID()) && (key == NULL)) { | |
| 283 if (SSL_LOG_CERTS) { | |
| 284 Log::Print("\titem %ld: Key\n", i); | |
| 285 } | |
| 286 key = reinterpret_cast<SecKeyRef>(const_cast<void*>(item)); | |
| 287 CFRetain(key); | |
| 288 } else if ((item_type == SecIdentityGetTypeID()) && (key == NULL)) { | |
| 289 if (SSL_LOG_CERTS) { | |
| 290 Log::Print("\titem %ld: Identity\n", i); | |
| 291 } | |
| 292 SecIdentityRef identity = | |
| 293 reinterpret_cast<SecIdentityRef>(const_cast<void*>(item)); | |
| 294 SecCertificateRef cert = NULL; | |
| 295 | |
| 296 status = SecIdentityCopyPrivateKey(identity, &key); | |
| 297 if (status != noErr) { | |
| 298 CFRelease(certs); | |
| 299 return status; | |
| 300 } | |
| 301 | |
| 302 status = SecIdentityCopyCertificate(identity, &cert); | |
| 303 if (status != noErr) { | |
| 304 CFRelease(key); | |
| 305 CFRelease(certs); | |
| 306 return status; | |
| 307 } | |
| 308 CFArrayAppendValue(certs, cert); | |
| 309 CFRelease(cert); | |
| 310 } | |
| 311 // Other item types are ignored. | |
| 312 } | |
| 313 | |
| 314 if (out_key == NULL) { | |
| 315 if (key != NULL) { | |
| 316 CFRelease(key); | |
| 317 } | |
| 318 } else { | |
| 319 *out_key = key; | |
| 320 } | |
| 321 | |
| 322 if (out_certs == NULL) { | |
| 323 if (certs != NULL) { | |
| 324 CFRelease(certs); | |
| 325 } | |
| 326 } else { | |
| 327 *out_certs = certs; | |
| 328 } | |
| 329 return status; | |
| 330 } | |
| 331 | |
| 332 | |
| 333 static OSStatus TryPEMImport(CFDataRef cfdata, | |
| 334 CFStringRef password, | |
| 335 CFArrayRef* out_certs, | |
| 336 SecKeyRef* out_key) { | |
| 337 OSStatus status = noErr; | |
| 338 | |
| 339 SecExternalFormat format = kSecFormatPEMSequence; | |
| 340 SecExternalItemType sitem_type = kSecItemTypeAggregate; | |
| 341 | |
| 342 SecItemImportExportKeyParameters params; | |
| 343 memset(¶ms, 0, sizeof(params)); | |
| 344 params.version = SEC_KEY_IMPORT_EXPORT_PARAMS_VERSION; | |
| 345 params.flags = kSecKeyNoAccessControl; | |
| 346 params.passphrase = password; | |
| 347 | |
| 348 CFArrayRef items = NULL; | |
| 349 status = SecItemImport(cfdata, NULL, &format, &sitem_type, 0, ¶ms, NULL, | |
| 350 &items); | |
| 351 | |
| 352 if (status != noErr) { | |
| 353 if (SSL_LOG_CERTS) { | |
| 354 Log::Print("TrySecItemImport failed with: %ld, type = %d, format = %d\n", | |
| 355 static_cast<intptr_t>(status), sitem_type, format); | |
| 356 } | |
| 357 return status; | |
| 358 } | |
| 359 | |
| 360 CFIndex items_length = (items == NULL) ? 0 : CFArrayGetCount(items); | |
| 361 if (SSL_LOG_CERTS) { | |
| 362 Log::Print( | |
| 363 "TrySecItemImport succeeded, type = %d, format = %d, count = %ld\n", | |
| 364 sitem_type, format, items_length); | |
| 365 } | |
| 366 | |
| 367 // Empty list indicates a decoding failure of some sort. | |
| 368 if ((items != NULL) && (items_length == 0)) { | |
| 369 CFRelease(items); | |
| 370 return errSSLBadCert; | |
| 371 } | |
| 372 | |
| 373 status = GetKeyAndCerts(items, items_length, out_certs, out_key); | |
| 374 CFRelease(items); | |
| 375 return status; | |
| 376 } | |
| 377 | |
| 378 | |
| 379 static char* TempKeychainPath() { | |
| 380 const char* exes = "keychaindir.XXXX"; | |
| 381 const char* fname = "keychain"; | |
| 382 const char* temp_dir = getenv("TMPDIR"); | |
| 383 if (temp_dir == NULL) { | |
| 384 temp_dir = getenv("TMP"); | |
| 385 } | |
| 386 if (temp_dir == NULL) { | |
| 387 temp_dir = "/tmp/"; | |
| 388 } | |
| 389 ASSERT(temp_dir != NULL); | |
| 390 | |
| 391 TextBuffer path(PATH_MAX); | |
| 392 path.Printf("%s/%s", temp_dir, exes); | |
| 393 char* ret = mkdtemp(path.buf()); | |
| 394 ASSERT(ret != NULL); | |
| 395 path.Printf("/%s", fname); | |
| 396 | |
| 397 char* result = reinterpret_cast<char*>(Dart_ScopeAllocate(path.length() + 1)); | |
| 398 return strncpy(result, path.buf(), path.length() + 1); | |
| 399 } | |
| 400 | |
| 401 | |
| 402 static OSStatus CreateKeychain(SecKeychainRef* keychain) { | |
| 403 ASSERT(keychain != NULL); | |
| 404 OSStatus status = noErr; | |
| 405 const char* temp_keychain_pwd = "dartdart"; | |
| 406 char* temp_file_path = TempKeychainPath(); | |
| 407 ASSERT(temp_file_path != NULL); | |
| 408 if (SSL_LOG_CERTS) { | |
| 409 Log::Print("Temporary keychain at: '%s'\n", temp_file_path); | |
| 410 } | |
| 411 status = SecKeychainCreate(temp_file_path, strlen(temp_keychain_pwd) + 1, | |
| 412 reinterpret_cast<const void*>(temp_keychain_pwd), | |
| 413 FALSE, // Prompt user? Definitely no. | |
| 414 NULL, // Default access rights. | |
| 415 keychain); | |
| 416 if (status != noErr) { | |
| 417 return status; | |
| 418 } | |
| 419 ASSERT(*keychain != NULL); | |
| 420 return status; | |
| 421 } | |
| 422 | |
| 423 | |
| 424 static OSStatus TryPKCS12Import(CFDataRef cfdata, | |
| 425 CFStringRef password, | |
| 426 CFArrayRef* out_certs, | |
| 427 SecKeyRef* out_key, | |
| 428 SecKeychainRef* out_keychain) { | |
| 429 OSStatus status = noErr; | |
| 430 | |
| 431 SecExternalFormat format = kSecFormatPKCS12; | |
| 432 SecExternalItemType sitem_type = kSecItemTypeAggregate; | |
| 433 | |
| 434 SecItemImportExportKeyParameters params; | |
| 435 memset(¶ms, 0, sizeof(params)); | |
| 436 params.version = SEC_KEY_IMPORT_EXPORT_PARAMS_VERSION; | |
| 437 params.flags = kSecKeyNoAccessControl; | |
| 438 params.passphrase = password; | |
| 439 | |
| 440 CFArrayRef items = NULL; | |
| 441 if (SSL_LOG_CERTS) { | |
| 442 Log::Print("Trying PKCS12 import with: type = %d, format = %d\n", | |
| 443 sitem_type, format); | |
| 444 } | |
| 445 | |
| 446 // The documentation for SecKeychainItemImport here: | |
| 447 // | |
| 448 // https://developer.apple.com/library/mac/documentation/Security/Reference/ke
ychainservices/index.html | |
| 449 // | |
| 450 // states that when the SecKeychainRef argument is NULL, the CFArrayRef* | |
| 451 // argument will be populated by an array containing all keys, identities, | |
| 452 // and certificates from the data in the CFDataRef argument. | |
| 453 // | |
| 454 // Unfortunately, this is not true. The code to populate the CFArrayRef with | |
| 455 // keys and identities from PKCS12 data has been skipped and/or commented out, | |
| 456 // here: | |
| 457 // | |
| 458 // https://github.com/Apple-FOSS-Mirror/Security/blob/master/libsecurity_keych
ain/lib/SecImportExportAgg.cpp#L636 | |
| 459 // | |
| 460 // as "floating" SecKeyRefs from the PKCS12 decoder haven't been implemented. | |
| 461 // That is, each private key instance coming from the PKCS12 decoder has to be | |
| 462 // associated with a keychain instance. Thus, as a workaround, we create a | |
| 463 // temporary keychain here if one is needed, and stash it below in a | |
| 464 // SecurityContext. This has the drawbacks: | |
| 465 // 1.) We need to make a temporary directory to hold the keychain file, and | |
| 466 // 2.) SecKeychainItemImport() probably does blocking IO to create and | |
| 467 // manipulate the keychain file. | |
| 468 // So if the API is updated, this keychain should not be used. | |
| 469 SecKeychainRef keychain = NULL; | |
| 470 if (out_key != NULL) { | |
| 471 ASSERT(out_keychain != NULL); | |
| 472 status = CreateKeychain(&keychain); | |
| 473 if (status != noErr) { | |
| 474 return status; | |
| 475 } | |
| 476 *out_keychain = keychain; | |
| 477 } | |
| 478 | |
| 479 status = SecItemImport(cfdata, NULL, &format, &sitem_type, 0, ¶ms, | |
| 480 keychain, &items); | |
| 481 if (status != noErr) { | |
| 482 if (SSL_LOG_CERTS) { | |
| 483 Log::Print("TrySecItemImport failed with: %ld, it = %d, format = %d\n", | |
| 484 static_cast<intptr_t>(status), sitem_type, format); | |
| 485 } | |
| 486 return status; | |
| 487 } | |
| 488 | |
| 489 CFIndex items_length = (items == NULL) ? 0 : CFArrayGetCount(items); | |
| 490 if (SSL_LOG_CERTS) { | |
| 491 Log::Print("TrySecItemImport succeeded, count = %ld\n", items_length); | |
| 492 } | |
| 493 | |
| 494 // Empty list indicates a decoding failure of some sort. | |
| 495 if ((items != NULL) && (items_length == 0)) { | |
| 496 CFRelease(items); | |
| 497 return errSSLBadCert; | |
| 498 } | |
| 499 | |
| 500 status = GetKeyAndCerts(items, items_length, out_certs, out_key); | |
| 501 CFRelease(items); | |
| 502 return status; | |
| 503 } | |
| 504 | |
| 505 | |
| 506 static OSStatus ExtractSecItems(uint8_t* buffer, | |
| 507 intptr_t length, | |
| 508 const char* password, | |
| 509 CFArrayRef* out_certs, | |
| 510 SecKeyRef* out_key, | |
| 511 SecKeychainRef* out_keychain) { | |
| 512 ASSERT(buffer != NULL); | |
| 513 ASSERT(password != NULL); | |
| 514 OSStatus status = noErr; | |
| 515 | |
| 516 CFDataRef cfdata = | |
| 517 CFDataCreateWithBytesNoCopy(NULL, buffer, length, kCFAllocatorNull); | |
| 518 CFStringRef cfpassword = CFStringCreateWithCStringNoCopy( | |
| 519 NULL, password, kCFStringEncodingUTF8, kCFAllocatorNull); | |
| 520 ASSERT(cfdata != NULL); | |
| 521 ASSERT(cfpassword != NULL); | |
| 522 | |
| 523 status = TryPEMImport(cfdata, cfpassword, out_certs, out_key); | |
| 524 if (status != noErr) { | |
| 525 status = | |
| 526 TryPKCS12Import(cfdata, cfpassword, out_certs, out_key, out_keychain); | |
| 527 } | |
| 528 | |
| 529 CFRelease(cfdata); | |
| 530 CFRelease(cfpassword); | |
| 531 return status; | |
| 532 } | |
| 533 | |
| 534 | |
| 535 void FUNCTION_NAME(SecureSocket_Init)(Dart_NativeArguments args) { | |
| 536 Dart_Handle dart_this = ThrowIfError(Dart_GetNativeArgument(args, 0)); | |
| 537 SSLFilter* filter = new SSLFilter(); // Deleted in DeleteFilter finalizer. | |
| 538 Dart_Handle err = SetFilter(args, filter); | |
| 539 if (Dart_IsError(err)) { | |
| 540 filter->Release(); | |
| 541 Dart_PropagateError(err); | |
| 542 } | |
| 543 err = filter->Init(dart_this); | |
| 544 if (Dart_IsError(err)) { | |
| 545 // The finalizer was set up by SetFilter. It will delete `filter` if there | |
| 546 // is an error. | |
| 547 filter->Destroy(); | |
| 548 Dart_PropagateError(err); | |
| 549 } | |
| 550 } | |
| 551 | |
| 552 | |
| 553 void FUNCTION_NAME(SecureSocket_Connect)(Dart_NativeArguments args) { | |
| 554 Dart_Handle dart_this = ThrowIfError(Dart_GetNativeArgument(args, 0)); | |
| 555 Dart_Handle host_name_object = ThrowIfError(Dart_GetNativeArgument(args, 1)); | |
| 556 Dart_Handle context_object = ThrowIfError(Dart_GetNativeArgument(args, 2)); | |
| 557 bool is_server = DartUtils::GetBooleanValue(Dart_GetNativeArgument(args, 3)); | |
| 558 bool request_client_certificate = | |
| 559 DartUtils::GetBooleanValue(Dart_GetNativeArgument(args, 4)); | |
| 560 bool require_client_certificate = | |
| 561 DartUtils::GetBooleanValue(Dart_GetNativeArgument(args, 5)); | |
| 562 | |
| 563 const char* host_name = NULL; | |
| 564 // TODO(whesse): Is truncating a Dart string containing \0 what we want? | |
| 565 ThrowIfError(Dart_StringToCString(host_name_object, &host_name)); | |
| 566 | |
| 567 SSLCertContext* context = NULL; | |
| 568 if (!Dart_IsNull(context_object)) { | |
| 569 ThrowIfError(Dart_GetNativeInstanceField( | |
| 570 context_object, kSecurityContextNativeFieldIndex, | |
| 571 reinterpret_cast<intptr_t*>(&context))); | |
| 572 } | |
| 573 | |
| 574 GetFilter(args)->Connect(dart_this, host_name, context, is_server, | |
| 575 request_client_certificate, | |
| 576 require_client_certificate); | |
| 577 } | |
| 578 | |
| 579 | |
| 580 void FUNCTION_NAME(SecureSocket_Destroy)(Dart_NativeArguments args) { | |
| 581 SSLFilter* filter = GetFilter(args); | |
| 582 // The SSLFilter is deleted in the finalizer for the Dart object created by | |
| 583 // SetFilter. There is no need to NULL-out the native field for the SSLFilter | |
| 584 // here because the SSLFilter won't be deleted until the finalizer for the | |
| 585 // Dart object runs while the Dart object is being GCd. This approach avoids a | |
| 586 // leak if Destroy isn't called, and avoids a NULL-dereference if Destroy is | |
| 587 // called more than once. | |
| 588 filter->Destroy(); | |
| 589 } | |
| 590 | |
| 591 | |
| 592 void FUNCTION_NAME(SecureSocket_Handshake)(Dart_NativeArguments args) { | |
| 593 OSStatus status = GetFilter(args)->CheckHandshake(); | |
| 594 CheckStatus(status, "HandshakeException", "Handshake error"); | |
| 595 } | |
| 596 | |
| 597 | |
| 598 void FUNCTION_NAME(SecureSocket_GetSelectedProtocol)( | |
| 599 Dart_NativeArguments args) { | |
| 600 Dart_SetReturnValue(args, Dart_Null()); | |
| 601 } | |
| 602 | |
| 603 | |
| 604 void FUNCTION_NAME(SecureSocket_Renegotiate)(Dart_NativeArguments args) { | |
| 605 bool use_session_cache = | |
| 606 DartUtils::GetBooleanValue(Dart_GetNativeArgument(args, 1)); | |
| 607 bool request_client_certificate = | |
| 608 DartUtils::GetBooleanValue(Dart_GetNativeArgument(args, 2)); | |
| 609 bool require_client_certificate = | |
| 610 DartUtils::GetBooleanValue(Dart_GetNativeArgument(args, 3)); | |
| 611 GetFilter(args)->Renegotiate(use_session_cache, request_client_certificate, | |
| 612 require_client_certificate); | |
| 613 } | |
| 614 | |
| 615 | |
| 616 void FUNCTION_NAME(SecureSocket_RegisterHandshakeCompleteCallback)( | |
| 617 Dart_NativeArguments args) { | |
| 618 Dart_Handle handshake_complete = | |
| 619 ThrowIfError(Dart_GetNativeArgument(args, 1)); | |
| 620 if (!Dart_IsClosure(handshake_complete)) { | |
| 621 Dart_ThrowException(DartUtils::NewDartArgumentError( | |
| 622 "Illegal argument to RegisterHandshakeCompleteCallback")); | |
| 623 } | |
| 624 GetFilter(args)->RegisterHandshakeCompleteCallback(handshake_complete); | |
| 625 } | |
| 626 | |
| 627 | |
| 628 void FUNCTION_NAME(SecureSocket_RegisterBadCertificateCallback)( | |
| 629 Dart_NativeArguments args) { | |
| 630 Dart_Handle callback = ThrowIfError(Dart_GetNativeArgument(args, 1)); | |
| 631 if (!Dart_IsClosure(callback) && !Dart_IsNull(callback)) { | |
| 632 Dart_ThrowException(DartUtils::NewDartArgumentError( | |
| 633 "Illegal argument to RegisterBadCertificateCallback")); | |
| 634 } | |
| 635 GetFilter(args)->RegisterBadCertificateCallback(callback); | |
| 636 } | |
| 637 | |
| 638 | |
| 639 void FUNCTION_NAME(SecureSocket_PeerCertificate)(Dart_NativeArguments args) { | |
| 640 Dart_SetReturnValue(args, GetFilter(args)->PeerCertificate()); | |
| 641 } | |
| 642 | |
| 643 | |
| 644 void FUNCTION_NAME(SecureSocket_FilterPointer)(Dart_NativeArguments args) { | |
| 645 SSLFilter* filter = GetFilter(args); | |
| 646 // This filter pointer is passed to the IO Service thread. The IO Service | |
| 647 // thread must Release() the pointer when it is done with it. | |
| 648 filter->Retain(); | |
| 649 intptr_t filter_pointer = reinterpret_cast<intptr_t>(filter); | |
| 650 Dart_SetReturnValue(args, Dart_NewInteger(filter_pointer)); | |
| 651 } | |
| 652 | |
| 653 | |
| 654 void FUNCTION_NAME(SecurityContext_Allocate)(Dart_NativeArguments args) { | |
| 655 SSLCertContext* cert_context = new SSLCertContext(); | |
| 656 // cert_context deleted in DeleteCertContext finalizer. | |
| 657 Dart_Handle err = SetSecurityContext(args, cert_context); | |
| 658 if (Dart_IsError(err)) { | |
| 659 cert_context->Release(); | |
| 660 Dart_PropagateError(err); | |
| 661 } | |
| 662 } | |
| 663 | |
| 664 | |
| 665 void FUNCTION_NAME(SecurityContext_UsePrivateKeyBytes)( | |
| 666 Dart_NativeArguments args) { | |
| 667 SSLCertContext* context = GetSecurityContext(args); | |
| 668 const char* password = GetPasswordArgument(args, 2); | |
| 669 | |
| 670 OSStatus status; | |
| 671 SecKeyRef key = NULL; | |
| 672 SecKeychainRef keychain = NULL; | |
| 673 { | |
| 674 ScopedMemBuffer buffer(ThrowIfError(Dart_GetNativeArgument(args, 1))); | |
| 675 status = ExtractSecItems(buffer.get(), buffer.length(), password, NULL, | |
| 676 &key, &keychain); | |
| 677 } | |
| 678 | |
| 679 // Set the context fields. If there's a failure, release the items. | |
| 680 bool set_failure = false; | |
| 681 if ((key != NULL) && !context->set_private_key(key)) { | |
| 682 CFRelease(key); | |
| 683 SecKeychainDelete(keychain); | |
| 684 CFRelease(keychain); | |
| 685 set_failure = true; | |
| 686 } | |
| 687 if (!set_failure && (keychain != NULL) && !context->set_keychain(keychain)) { | |
| 688 SecKeychainDelete(keychain); | |
| 689 CFRelease(keychain); | |
| 690 } | |
| 691 | |
| 692 if (set_failure) { | |
| 693 Dart_ThrowException(DartUtils::NewDartArgumentError( | |
| 694 "usePrivateKeyBytes has already been called on the given context.")); | |
| 695 } | |
| 696 CheckStatus(status, "TlsException", "Failure in usePrivateKeyBytes"); | |
| 697 } | |
| 698 | |
| 699 | |
| 700 void FUNCTION_NAME(SecurityContext_SetTrustedCertificatesBytes)( | |
| 701 Dart_NativeArguments args) { | |
| 702 SSLCertContext* context = GetSecurityContext(args); | |
| 703 const char* password = GetPasswordArgument(args, 2); | |
| 704 | |
| 705 OSStatus status; | |
| 706 CFArrayRef certs = NULL; | |
| 707 { | |
| 708 ScopedMemBuffer buffer(ThrowIfError(Dart_GetNativeArgument(args, 1))); | |
| 709 status = ExtractSecItems(buffer.get(), buffer.length(), password, &certs, | |
| 710 NULL, NULL); | |
| 711 } | |
| 712 | |
| 713 // Set the field in the context. If there's a failure, release the certs, | |
| 714 // and throw an exception. | |
| 715 if ((certs != NULL) && !context->set_trusted_certs(certs)) { | |
| 716 CFRelease(certs); | |
| 717 Dart_ThrowException(DartUtils::NewDartArgumentError( | |
| 718 "setTrustedCertificatesBytes has already been called " | |
| 719 "on the given context.")); | |
| 720 } | |
| 721 | |
| 722 CheckStatus(status, "TlsException", "Failure in setTrustedCertificatesBytes"); | |
| 723 } | |
| 724 | |
| 725 | |
| 726 void FUNCTION_NAME(SecurityContext_AlpnSupported)(Dart_NativeArguments args) { | |
| 727 Dart_SetReturnValue(args, Dart_NewBoolean(false)); | |
| 728 } | |
| 729 | |
| 730 | |
| 731 void FUNCTION_NAME(SecurityContext_TrustBuiltinRoots)( | |
| 732 Dart_NativeArguments args) { | |
| 733 SSLCertContext* context = GetSecurityContext(args); | |
| 734 context->set_trust_builtin(true); | |
| 735 } | |
| 736 | |
| 737 | |
| 738 void FUNCTION_NAME(SecurityContext_UseCertificateChainBytes)( | |
| 739 Dart_NativeArguments args) { | |
| 740 SSLCertContext* context = GetSecurityContext(args); | |
| 741 | |
| 742 const char* password = GetPasswordArgument(args, 2); | |
| 743 OSStatus status; | |
| 744 CFArrayRef certs = NULL; | |
| 745 { | |
| 746 ScopedMemBuffer buffer(ThrowIfError(Dart_GetNativeArgument(args, 1))); | |
| 747 status = ExtractSecItems(buffer.get(), buffer.length(), password, &certs, | |
| 748 NULL, NULL); | |
| 749 } | |
| 750 | |
| 751 // Set the field in the context. If there's a failure, release the certs, | |
| 752 // and throw an exception. | |
| 753 if ((certs != NULL) && !context->set_cert_chain(certs)) { | |
| 754 CFRelease(certs); | |
| 755 Dart_ThrowException(DartUtils::NewDartArgumentError( | |
| 756 "useCertificateChainBytes has already been called " | |
| 757 "on the given context.")); | |
| 758 } | |
| 759 | |
| 760 CheckStatus(status, "TlsException", "Failure in useCertificateChainBytes"); | |
| 761 } | |
| 762 | |
| 763 | |
| 764 void FUNCTION_NAME(SecurityContext_SetClientAuthoritiesBytes)( | |
| 765 Dart_NativeArguments args) { | |
| 766 SSLCertContext* context = GetSecurityContext(args); | |
| 767 const char* password = GetPasswordArgument(args, 2); | |
| 768 | |
| 769 OSStatus status; | |
| 770 CFArrayRef certs = NULL; | |
| 771 { | |
| 772 ScopedMemBuffer buffer(ThrowIfError(Dart_GetNativeArgument(args, 1))); | |
| 773 status = ExtractSecItems(buffer.get(), buffer.length(), password, &certs, | |
| 774 NULL, NULL); | |
| 775 } | |
| 776 | |
| 777 // Set the field in the context. If there's a failure, release the certs, | |
| 778 // and throw an exception. | |
| 779 if ((certs != NULL) && !context->set_cert_authorities(certs)) { | |
| 780 CFRelease(certs); | |
| 781 Dart_ThrowException(DartUtils::NewDartArgumentError( | |
| 782 "setClientAuthoritiesBytes has already been called " | |
| 783 "on the given context.")); | |
| 784 } | |
| 785 | |
| 786 CheckStatus(status, "TlsException", "Failure in setClientAuthoritiesBytes"); | |
| 787 } | |
| 788 | |
| 789 | |
| 790 void FUNCTION_NAME(SecurityContext_SetAlpnProtocols)( | |
| 791 Dart_NativeArguments args) { | |
| 792 Dart_ThrowException(DartUtils::NewDartUnsupportedError( | |
| 793 "ALPN is not supported on this platform")); | |
| 794 } | |
| 795 | |
| 796 | |
| 797 static char* GetNameFromCert(SecCertificateRef certificate, | |
| 798 CFTypeRef field, | |
| 799 CFStringRef name) { | |
| 800 char* issuer_name = NULL; | |
| 801 | |
| 802 CFTypeRef keys[] = {field}; | |
| 803 CFArrayRef key_array = CFArrayCreate(NULL, keys, 1, &kCFTypeArrayCallBacks); | |
| 804 CFErrorRef error = NULL; | |
| 805 CFDictionaryRef cert_dict = | |
| 806 SecCertificateCopyValues(certificate, key_array, &error); | |
| 807 if (cert_dict == NULL) { | |
| 808 CFRelease(key_array); | |
| 809 Dart_ThrowException(DartUtils::NewDartArgumentError( | |
| 810 "X509.issuer failed to copy issuer field out of certificate")); | |
| 811 } | |
| 812 | |
| 813 CFTypeRef item = CFDictionaryGetValue(cert_dict, keys[0]); | |
| 814 ASSERT(CFGetTypeID(item) == CFDictionaryGetTypeID()); | |
| 815 CFDictionaryRef val_dict = reinterpret_cast<CFDictionaryRef>(item); | |
| 816 | |
| 817 item = CFDictionaryGetValue(val_dict, kSecPropertyKeyValue); | |
| 818 ASSERT(CFGetTypeID(item) == CFArrayGetTypeID()); | |
| 819 CFArrayRef val_array = reinterpret_cast<CFArrayRef>(item); | |
| 820 | |
| 821 for (intptr_t i = 0; i < CFArrayGetCount(val_array); i++) { | |
| 822 item = CFArrayGetValueAtIndex(val_array, i); | |
| 823 ASSERT(CFGetTypeID(item) == CFDictionaryGetTypeID()); | |
| 824 CFDictionaryRef val_dict2 = reinterpret_cast<CFDictionaryRef>(item); | |
| 825 | |
| 826 item = CFDictionaryGetValue(val_dict2, kSecPropertyKeyLabel); | |
| 827 ASSERT(CFGetTypeID(item) == CFStringGetTypeID()); | |
| 828 CFStringRef label = reinterpret_cast<CFStringRef>(item); | |
| 829 | |
| 830 if (CFStringCompare(label, name, 0) == kCFCompareEqualTo) { | |
| 831 item = CFDictionaryGetValue(val_dict2, kSecPropertyKeyValue); | |
| 832 ASSERT(CFGetTypeID(item) == CFStringGetTypeID()); | |
| 833 CFStringRef value = reinterpret_cast<CFStringRef>(item); | |
| 834 issuer_name = CFStringRefToCString(value); | |
| 835 break; | |
| 836 } | |
| 837 } | |
| 838 | |
| 839 CFRelease(cert_dict); | |
| 840 CFRelease(key_array); | |
| 841 return issuer_name; | |
| 842 } | |
| 843 | |
| 844 | |
| 845 void FUNCTION_NAME(X509_Subject)(Dart_NativeArguments args) { | |
| 846 SecCertificateRef certificate = GetX509Certificate(args); | |
| 847 char* subject_name = | |
| 848 GetNameFromCert(certificate, kSecOIDX509V1SubjectName, | |
| 849 reinterpret_cast<CFStringRef>(kSecOIDCommonName)); | |
| 850 if (subject_name == NULL) { | |
| 851 Dart_ThrowException(DartUtils::NewDartArgumentError( | |
| 852 "X509.subject failed to find subject's common name.")); | |
| 853 } else { | |
| 854 Dart_SetReturnValue(args, Dart_NewStringFromCString(subject_name)); | |
| 855 } | |
| 856 } | |
| 857 | |
| 858 | |
| 859 void FUNCTION_NAME(X509_Issuer)(Dart_NativeArguments args) { | |
| 860 SecCertificateRef certificate = GetX509Certificate(args); | |
| 861 char* issuer_name = | |
| 862 GetNameFromCert(certificate, kSecOIDX509V1IssuerName, | |
| 863 reinterpret_cast<CFStringRef>(kSecOIDCommonName)); | |
| 864 if (issuer_name == NULL) { | |
| 865 Dart_ThrowException(DartUtils::NewDartArgumentError( | |
| 866 "X509.issuer failed to find issuer's common name.")); | |
| 867 } else { | |
| 868 Dart_SetReturnValue(args, Dart_NewStringFromCString(issuer_name)); | |
| 869 } | |
| 870 } | |
| 871 | |
| 872 | |
| 873 // Returns the number of seconds since the epoch from 'field'. | |
| 874 static int64_t GetTimeFromCert(SecCertificateRef certificate, CFTypeRef field) { | |
| 875 CFTypeRef keys[] = {field}; | |
| 876 CFArrayRef key_array = CFArrayCreate(NULL, keys, 1, &kCFTypeArrayCallBacks); | |
| 877 CFErrorRef error = NULL; | |
| 878 CFDictionaryRef cert_dict = | |
| 879 SecCertificateCopyValues(certificate, key_array, &error); | |
| 880 if (cert_dict == NULL) { | |
| 881 CFRelease(key_array); | |
| 882 Dart_ThrowException(DartUtils::NewDartArgumentError( | |
| 883 "X509.startValidity: failed to copy issuer field out of certificate")); | |
| 884 } | |
| 885 | |
| 886 CFTypeRef item = CFDictionaryGetValue(cert_dict, keys[0]); | |
| 887 ASSERT(CFGetTypeID(item) == CFDictionaryGetTypeID()); | |
| 888 CFDictionaryRef val_dict = reinterpret_cast<CFDictionaryRef>(item); | |
| 889 | |
| 890 item = CFDictionaryGetValue(val_dict, kSecPropertyKeyValue); | |
| 891 ASSERT(CFGetTypeID(item) == CFNumberGetTypeID()); | |
| 892 CFNumberRef date_number = reinterpret_cast<CFNumberRef>(item); | |
| 893 | |
| 894 CFAbsoluteTime date_abs_time; | |
| 895 CFNumberGetValue(date_number, kCFNumberDoubleType, &date_abs_time); | |
| 896 CFAbsoluteTime seconds_since_epoch = | |
| 897 date_abs_time + kCFAbsoluteTimeIntervalSince1970; | |
| 898 return static_cast<int64_t>(seconds_since_epoch) * 1000LL; | |
| 899 } | |
| 900 | |
| 901 | |
| 902 void FUNCTION_NAME(X509_StartValidity)(Dart_NativeArguments args) { | |
| 903 SecCertificateRef certificate = GetX509Certificate(args); | |
| 904 int64_t seconds_since_epoch = | |
| 905 GetTimeFromCert(certificate, kSecOIDX509V1ValidityNotBefore); | |
| 906 Dart_SetReturnValue( | |
| 907 args, | |
| 908 Dart_NewInteger(static_cast<int64_t>(seconds_since_epoch) * 1000LL)); | |
| 909 } | |
| 910 | |
| 911 | |
| 912 void FUNCTION_NAME(X509_EndValidity)(Dart_NativeArguments args) { | |
| 913 SecCertificateRef certificate = GetX509Certificate(args); | |
| 914 int64_t seconds_since_epoch = | |
| 915 GetTimeFromCert(certificate, kSecOIDX509V1ValidityNotAfter); | |
| 916 Dart_SetReturnValue( | |
| 917 args, | |
| 918 Dart_NewInteger(static_cast<int64_t>(seconds_since_epoch) * 1000LL)); | |
| 919 } | |
| 920 | |
| 921 | |
| 922 // Pushes data through the SSL filter, reading and writing from circular | |
| 923 // buffers shared with Dart. Called from the IOService thread. | |
| 924 // | |
| 925 // The Dart _SecureFilterImpl class contains 4 ExternalByteArrays used to | |
| 926 // pass encrypted and plaintext data to and from the C++ SSLFilter object. | |
| 927 // | |
| 928 // ProcessFilter is called with a CObject array containing the pointer to | |
| 929 // the SSLFilter, encoded as an int, and the start and end positions of the | |
| 930 // valid data in the four circular buffers. The function only reads from | |
| 931 // the valid data area of the input buffers, and only writes to the free | |
| 932 // area of the output buffers. The function returns the new start and end | |
| 933 // positions in the buffers, but it only updates start for input buffers, and | |
| 934 // end for output buffers. Therefore, the Dart thread can simultaneously | |
| 935 // write to the free space and end pointer of input buffers, and read from | |
| 936 // the data space of output buffers, and modify the start pointer. | |
| 937 // | |
| 938 // When ProcessFilter returns, the Dart thread is responsible for combining | |
| 939 // the updated pointers from Dart and C++, to make the new valid state of | |
| 940 // the circular buffer. | |
| 941 CObject* SSLFilter::ProcessFilterRequest(const CObjectArray& request) { | |
| 942 CObjectIntptr filter_object(request[0]); | |
| 943 SSLFilter* filter = reinterpret_cast<SSLFilter*>(filter_object.Value()); | |
| 944 RefCntReleaseScope<SSLFilter> rs(filter); | |
| 945 | |
| 946 bool in_handshake = CObjectBool(request[1]).Value(); | |
| 947 intptr_t starts[SSLFilter::kNumBuffers]; | |
| 948 intptr_t ends[SSLFilter::kNumBuffers]; | |
| 949 for (intptr_t i = 0; i < SSLFilter::kNumBuffers; ++i) { | |
| 950 starts[i] = CObjectInt32(request[2 * i + 2]).Value(); | |
| 951 ends[i] = CObjectInt32(request[2 * i + 3]).Value(); | |
| 952 } | |
| 953 | |
| 954 OSStatus status = filter->ProcessAllBuffers(starts, ends, in_handshake); | |
| 955 if (status == noErr) { | |
| 956 CObjectArray* result = | |
| 957 new CObjectArray(CObject::NewArray(SSLFilter::kNumBuffers * 2)); | |
| 958 for (intptr_t i = 0; i < SSLFilter::kNumBuffers; ++i) { | |
| 959 result->SetAt(2 * i, new CObjectInt32(CObject::NewInt32(starts[i]))); | |
| 960 result->SetAt(2 * i + 1, new CObjectInt32(CObject::NewInt32(ends[i]))); | |
| 961 } | |
| 962 return result; | |
| 963 } else { | |
| 964 TextBuffer status_message(SSL_ERROR_MESSAGE_BUFFER_SIZE); | |
| 965 CFStringRef error_string = SecCopyErrorMessageString(status, NULL); | |
| 966 if (error_string == NULL) { | |
| 967 status_message.Printf("OSStatus = %ld: https://www.osstatus.com", | |
| 968 static_cast<intptr_t>(status)); | |
| 969 } else { | |
| 970 char* error = CFStringRefToCString(error_string); | |
| 971 status_message.Printf("OSStatus = %ld: %s", static_cast<intptr_t>(status), | |
| 972 error); | |
| 973 CFRelease(error_string); | |
| 974 } | |
| 975 CObjectArray* result = new CObjectArray(CObject::NewArray(2)); | |
| 976 result->SetAt(0, new CObjectInt32(CObject::NewInt32(status))); | |
| 977 result->SetAt(1, | |
| 978 new CObjectString(CObject::NewString(status_message.buf()))); | |
| 979 return result; | |
| 980 } | |
| 981 } | |
| 982 | |
| 983 | |
| 984 // Usually buffer_starts_ and buffer_ends_ are populated by ProcessAllBuffers, | |
| 985 // called from ProcessFilterRequest, called from the IOService thread. | |
| 986 // However, the first call to SSLHandshake comes from the Dart thread, and so | |
| 987 // doesn't go through there. This results in calls to SSLReadCallback and | |
| 988 // SSLWriteCallback in which buffer_starts_ and buffer_ends_ haven't been set | |
| 989 // up. In that case, since we're coming from Dart anyway, we can access the | |
| 990 // fieds directly from the Dart objects. | |
| 991 intptr_t SSLFilter::GetBufferStart(intptr_t idx) const { | |
| 992 if (buffer_starts_[idx] != NULL) { | |
| 993 return *buffer_starts_[idx]; | |
| 994 } | |
| 995 Dart_Handle buffer_handle = | |
| 996 ThrowIfError(Dart_HandleFromPersistent(dart_buffer_objects_[idx])); | |
| 997 Dart_Handle start_handle = | |
| 998 ThrowIfError(Dart_GetField(buffer_handle, DartUtils::NewString("start"))); | |
| 999 int64_t start = DartUtils::GetIntegerValue(start_handle); | |
| 1000 return static_cast<intptr_t>(start); | |
| 1001 } | |
| 1002 | |
| 1003 | |
| 1004 intptr_t SSLFilter::GetBufferEnd(intptr_t idx) const { | |
| 1005 if (buffer_ends_[idx] != NULL) { | |
| 1006 return *buffer_ends_[idx]; | |
| 1007 } | |
| 1008 Dart_Handle buffer_handle = | |
| 1009 ThrowIfError(Dart_HandleFromPersistent(dart_buffer_objects_[idx])); | |
| 1010 Dart_Handle end_handle = | |
| 1011 ThrowIfError(Dart_GetField(buffer_handle, DartUtils::NewString("end"))); | |
| 1012 int64_t end = DartUtils::GetIntegerValue(end_handle); | |
| 1013 return static_cast<intptr_t>(end); | |
| 1014 } | |
| 1015 | |
| 1016 | |
| 1017 void SSLFilter::SetBufferStart(intptr_t idx, intptr_t value) { | |
| 1018 if (buffer_starts_[idx] != NULL) { | |
| 1019 *buffer_starts_[idx] = value; | |
| 1020 return; | |
| 1021 } | |
| 1022 Dart_Handle buffer_handle = | |
| 1023 ThrowIfError(Dart_HandleFromPersistent(dart_buffer_objects_[idx])); | |
| 1024 ThrowIfError(DartUtils::SetIntegerField(buffer_handle, "start", | |
| 1025 static_cast<int64_t>(value))); | |
| 1026 } | |
| 1027 | |
| 1028 | |
| 1029 void SSLFilter::SetBufferEnd(intptr_t idx, intptr_t value) { | |
| 1030 if (buffer_ends_[idx] != NULL) { | |
| 1031 *buffer_ends_[idx] = value; | |
| 1032 return; | |
| 1033 } | |
| 1034 Dart_Handle buffer_handle = | |
| 1035 ThrowIfError(Dart_HandleFromPersistent(dart_buffer_objects_[idx])); | |
| 1036 ThrowIfError(DartUtils::SetIntegerField(buffer_handle, "end", | |
| 1037 static_cast<int64_t>(value))); | |
| 1038 } | |
| 1039 | |
| 1040 | |
| 1041 OSStatus SSLFilter::ProcessAllBuffers(intptr_t starts[kNumBuffers], | |
| 1042 intptr_t ends[kNumBuffers], | |
| 1043 bool in_handshake) { | |
| 1044 for (intptr_t i = 0; i < kNumBuffers; ++i) { | |
| 1045 buffer_starts_[i] = &starts[i]; | |
| 1046 buffer_ends_[i] = &ends[i]; | |
| 1047 } | |
| 1048 | |
| 1049 if (in_handshake) { | |
| 1050 OSStatus status = Handshake(); | |
| 1051 if (status != noErr) { | |
| 1052 return status; | |
| 1053 } | |
| 1054 } else { | |
| 1055 for (intptr_t i = 0; i < kNumBuffers; ++i) { | |
| 1056 intptr_t start = starts[i]; | |
| 1057 intptr_t end = ends[i]; | |
| 1058 intptr_t size = | |
| 1059 isBufferEncrypted(i) ? encrypted_buffer_size_ : buffer_size_; | |
| 1060 if (start < 0 || end < 0 || start >= size || end >= size) { | |
| 1061 FATAL("Out-of-bounds internal buffer access in dart:io SecureSocket"); | |
| 1062 } | |
| 1063 switch (i) { | |
| 1064 case kReadPlaintext: | |
| 1065 // Write data to the circular buffer's free space. If the buffer | |
| 1066 // is full, neither if statement is executed and nothing happens. | |
| 1067 if (start <= end) { | |
| 1068 // If the free space may be split into two segments, | |
| 1069 // then the first is [end, size), unless start == 0. | |
| 1070 // Then, since the last free byte is at position start - 2, | |
| 1071 // the interval is [end, size - 1). | |
| 1072 intptr_t buffer_end = (start == 0) ? size - 1 : size; | |
| 1073 intptr_t bytes = 0; | |
| 1074 OSStatus status = | |
| 1075 ProcessReadPlaintextBuffer(end, buffer_end, &bytes); | |
| 1076 if ((status != noErr) && (status != errSSLWouldBlock)) { | |
| 1077 return status; | |
| 1078 } | |
| 1079 end += bytes; | |
| 1080 ASSERT(end <= size); | |
| 1081 if (end == size) { | |
| 1082 end = 0; | |
| 1083 } | |
| 1084 } | |
| 1085 if (start > end + 1) { | |
| 1086 intptr_t bytes = 0; | |
| 1087 OSStatus status = | |
| 1088 ProcessReadPlaintextBuffer(end, start - 1, &bytes); | |
| 1089 if ((status != noErr) && (status != errSSLWouldBlock)) { | |
| 1090 return status; | |
| 1091 } | |
| 1092 end += bytes; | |
| 1093 ASSERT(end < start); | |
| 1094 } | |
| 1095 ends[i] = end; | |
| 1096 break; | |
| 1097 case kWritePlaintext: | |
| 1098 // Read/Write data from circular buffer. If the buffer is empty, | |
| 1099 // neither if statement's condition is true. | |
| 1100 if (end < start) { | |
| 1101 // Data may be split into two segments. In this case, | |
| 1102 // the first is [start, size). | |
| 1103 intptr_t bytes = 0; | |
| 1104 OSStatus status = ProcessWritePlaintextBuffer(start, size, &bytes); | |
| 1105 if ((status != noErr) && (status != errSSLWouldBlock)) { | |
| 1106 return status; | |
| 1107 } | |
| 1108 start += bytes; | |
| 1109 ASSERT(start <= size); | |
| 1110 if (start == size) { | |
| 1111 start = 0; | |
| 1112 } | |
| 1113 } | |
| 1114 if (start < end) { | |
| 1115 intptr_t bytes = 0; | |
| 1116 OSStatus status = ProcessWritePlaintextBuffer(start, end, &bytes); | |
| 1117 if ((status != noErr) && (status != errSSLWouldBlock)) { | |
| 1118 return status; | |
| 1119 } | |
| 1120 start += bytes; | |
| 1121 ASSERT(start <= end); | |
| 1122 } | |
| 1123 starts[i] = start; | |
| 1124 break; | |
| 1125 case kReadEncrypted: | |
| 1126 case kWriteEncrypted: | |
| 1127 // These buffers are advanced through SSLReadCallback and | |
| 1128 // SSLWriteCallback, which are called from SSLRead, SSLWrite, and | |
| 1129 // SSLHandshake. | |
| 1130 break; | |
| 1131 default: | |
| 1132 UNREACHABLE(); | |
| 1133 } | |
| 1134 } | |
| 1135 } | |
| 1136 | |
| 1137 for (intptr_t i = 0; i < kNumBuffers; ++i) { | |
| 1138 buffer_starts_[i] = NULL; | |
| 1139 buffer_ends_[i] = NULL; | |
| 1140 } | |
| 1141 return noErr; | |
| 1142 } | |
| 1143 | |
| 1144 | |
| 1145 Dart_Handle SSLFilter::Init(Dart_Handle dart_this) { | |
| 1146 ASSERT(string_start_ == NULL); | |
| 1147 string_start_ = Dart_NewPersistentHandle(DartUtils::NewString("start")); | |
| 1148 ASSERT(string_start_ != NULL); | |
| 1149 ASSERT(string_length_ == NULL); | |
| 1150 string_length_ = Dart_NewPersistentHandle(DartUtils::NewString("length")); | |
| 1151 ASSERT(string_length_ != NULL); | |
| 1152 ASSERT(bad_certificate_callback_ == NULL); | |
| 1153 bad_certificate_callback_ = Dart_NewPersistentHandle(Dart_Null()); | |
| 1154 ASSERT(bad_certificate_callback_ != NULL); | |
| 1155 | |
| 1156 // Caller handles cleanup on an error. | |
| 1157 return InitializeBuffers(dart_this); | |
| 1158 } | |
| 1159 | |
| 1160 | |
| 1161 Dart_Handle SSLFilter::InitializeBuffers(Dart_Handle dart_this) { | |
| 1162 // Create SSLFilter buffers as ExternalUint8Array objects. | |
| 1163 Dart_Handle buffers_string = DartUtils::NewString("buffers"); | |
| 1164 RETURN_IF_ERROR(buffers_string); | |
| 1165 Dart_Handle dart_buffers_object = Dart_GetField(dart_this, buffers_string); | |
| 1166 RETURN_IF_ERROR(dart_buffers_object); | |
| 1167 Dart_Handle secure_filter_impl_type = Dart_InstanceGetType(dart_this); | |
| 1168 RETURN_IF_ERROR(secure_filter_impl_type); | |
| 1169 Dart_Handle size_string = DartUtils::NewString("SIZE"); | |
| 1170 RETURN_IF_ERROR(size_string); | |
| 1171 Dart_Handle dart_buffer_size = | |
| 1172 Dart_GetField(secure_filter_impl_type, size_string); | |
| 1173 RETURN_IF_ERROR(dart_buffer_size); | |
| 1174 | |
| 1175 int64_t buffer_size = 0; | |
| 1176 Dart_Handle err = Dart_IntegerToInt64(dart_buffer_size, &buffer_size); | |
| 1177 RETURN_IF_ERROR(err); | |
| 1178 | |
| 1179 Dart_Handle encrypted_size_string = DartUtils::NewString("ENCRYPTED_SIZE"); | |
| 1180 RETURN_IF_ERROR(encrypted_size_string); | |
| 1181 | |
| 1182 Dart_Handle dart_encrypted_buffer_size = | |
| 1183 Dart_GetField(secure_filter_impl_type, encrypted_size_string); | |
| 1184 RETURN_IF_ERROR(dart_encrypted_buffer_size); | |
| 1185 | |
| 1186 int64_t encrypted_buffer_size = 0; | |
| 1187 err = Dart_IntegerToInt64(dart_encrypted_buffer_size, &encrypted_buffer_size); | |
| 1188 RETURN_IF_ERROR(err); | |
| 1189 | |
| 1190 if (buffer_size <= 0 || buffer_size > 1 * MB) { | |
| 1191 FATAL("Invalid buffer size in _ExternalBuffer"); | |
| 1192 } | |
| 1193 if (encrypted_buffer_size <= 0 || encrypted_buffer_size > 1 * MB) { | |
| 1194 FATAL("Invalid encrypted buffer size in _ExternalBuffer"); | |
| 1195 } | |
| 1196 buffer_size_ = static_cast<intptr_t>(buffer_size); | |
| 1197 encrypted_buffer_size_ = static_cast<intptr_t>(encrypted_buffer_size); | |
| 1198 | |
| 1199 Dart_Handle data_identifier = DartUtils::NewString("data"); | |
| 1200 RETURN_IF_ERROR(data_identifier); | |
| 1201 | |
| 1202 for (int i = 0; i < kNumBuffers; i++) { | |
| 1203 int size = isBufferEncrypted(i) ? encrypted_buffer_size_ : buffer_size_; | |
| 1204 buffers_[i] = new uint8_t[size]; | |
| 1205 ASSERT(buffers_[i] != NULL); | |
| 1206 buffer_starts_[i] = NULL; | |
| 1207 buffer_ends_[i] = NULL; | |
| 1208 dart_buffer_objects_[i] = NULL; | |
| 1209 } | |
| 1210 | |
| 1211 Dart_Handle result = Dart_Null(); | |
| 1212 for (int i = 0; i < kNumBuffers; ++i) { | |
| 1213 int size = isBufferEncrypted(i) ? encrypted_buffer_size_ : buffer_size_; | |
| 1214 result = Dart_ListGetAt(dart_buffers_object, i); | |
| 1215 if (Dart_IsError(result)) { | |
| 1216 break; | |
| 1217 } | |
| 1218 | |
| 1219 dart_buffer_objects_[i] = Dart_NewPersistentHandle(result); | |
| 1220 ASSERT(dart_buffer_objects_[i] != NULL); | |
| 1221 Dart_Handle data = | |
| 1222 Dart_NewExternalTypedData(Dart_TypedData_kUint8, buffers_[i], size); | |
| 1223 if (Dart_IsError(data)) { | |
| 1224 result = data; | |
| 1225 break; | |
| 1226 } | |
| 1227 result = Dart_HandleFromPersistent(dart_buffer_objects_[i]); | |
| 1228 if (Dart_IsError(result)) { | |
| 1229 break; | |
| 1230 } | |
| 1231 result = Dart_SetField(result, data_identifier, data); | |
| 1232 if (Dart_IsError(result)) { | |
| 1233 break; | |
| 1234 } | |
| 1235 } | |
| 1236 | |
| 1237 // Caller handles cleanup on an error. | |
| 1238 return result; | |
| 1239 } | |
| 1240 | |
| 1241 | |
| 1242 void SSLFilter::RegisterHandshakeCompleteCallback(Dart_Handle complete) { | |
| 1243 ASSERT(NULL == handshake_complete_); | |
| 1244 handshake_complete_ = Dart_NewPersistentHandle(complete); | |
| 1245 ASSERT(handshake_complete_ != NULL); | |
| 1246 } | |
| 1247 | |
| 1248 | |
| 1249 void SSLFilter::RegisterBadCertificateCallback(Dart_Handle callback) { | |
| 1250 ASSERT(bad_certificate_callback_ != NULL); | |
| 1251 Dart_DeletePersistentHandle(bad_certificate_callback_); | |
| 1252 bad_certificate_callback_ = Dart_NewPersistentHandle(callback); | |
| 1253 ASSERT(bad_certificate_callback_ != NULL); | |
| 1254 } | |
| 1255 | |
| 1256 | |
| 1257 Dart_Handle SSLFilter::PeerCertificate() { | |
| 1258 if (peer_certs_ == NULL) { | |
| 1259 return Dart_Null(); | |
| 1260 } | |
| 1261 | |
| 1262 CFTypeRef item = CFArrayGetValueAtIndex(peer_certs_, 0); | |
| 1263 ASSERT(CFGetTypeID(item) == SecCertificateGetTypeID()); | |
| 1264 SecCertificateRef cert = | |
| 1265 reinterpret_cast<SecCertificateRef>(const_cast<void*>(item)); | |
| 1266 if (cert == NULL) { | |
| 1267 return Dart_Null(); | |
| 1268 } | |
| 1269 | |
| 1270 return WrappedX509Certificate(cert); | |
| 1271 } | |
| 1272 | |
| 1273 | |
| 1274 void SSLFilter::Connect(Dart_Handle dart_this, | |
| 1275 const char* hostname, | |
| 1276 SSLCertContext* context, | |
| 1277 bool is_server, | |
| 1278 bool request_client_certificate, | |
| 1279 bool require_client_certificate) { | |
| 1280 if (in_handshake_) { | |
| 1281 FATAL("Connect called twice on the same _SecureFilter."); | |
| 1282 } | |
| 1283 | |
| 1284 // Create the underlying context | |
| 1285 SSLContextRef ssl_context = SSLCreateContext( | |
| 1286 NULL, is_server ? kSSLServerSide : kSSLClientSide, kSSLStreamType); | |
| 1287 | |
| 1288 // Configure the context. | |
| 1289 OSStatus status; | |
| 1290 status = SSLSetPeerDomainName(ssl_context, hostname, strlen(hostname)); | |
| 1291 CheckStatus(status, "TlsException", "Failed to set peer domain name"); | |
| 1292 | |
| 1293 status = SSLSetIOFuncs(ssl_context, SSLFilter::SSLReadCallback, | |
| 1294 SSLFilter::SSLWriteCallback); | |
| 1295 CheckStatus(status, "TlsException", "Failed to set IO Callbacks"); | |
| 1296 | |
| 1297 status = | |
| 1298 SSLSetConnection(ssl_context, reinterpret_cast<SSLConnectionRef>(this)); | |
| 1299 CheckStatus(status, "TlsException", "Failed to set connection object"); | |
| 1300 | |
| 1301 // Always evaluate the certs manually so that we can cache the peer | |
| 1302 // certificates in the context for calls to peerCertificate. | |
| 1303 status = SSLSetSessionOption(ssl_context, kSSLSessionOptionBreakOnServerAuth, | |
| 1304 true); | |
| 1305 CheckStatus(status, "TlsException", "Failed to set BreakOnServerAuth option"); | |
| 1306 | |
| 1307 status = SSLSetProtocolVersionMin(ssl_context, kTLSProtocol1); | |
| 1308 CheckStatus(status, "TlsException", | |
| 1309 "Failed to set minimum protocol version to kTLSProtocol1"); | |
| 1310 | |
| 1311 // If the context has a private key and certificate chain, combine the | |
| 1312 // private key and first certificate into a SecIdentityRef, and place that | |
| 1313 // and the remaining certs in an array to pass to SSLSetCertificate(). | |
| 1314 if ((context->private_key() != NULL) && (context->cert_chain() != NULL)) { | |
| 1315 CFIndex chain_length = CFArrayGetCount(context->cert_chain()); | |
| 1316 CFMutableArrayRef certs = | |
| 1317 CFArrayCreateMutable(NULL, chain_length, &kCFTypeArrayCallBacks); | |
| 1318 CFTypeRef item = CFArrayGetValueAtIndex(context->cert_chain(), 0); | |
| 1319 ASSERT(CFGetTypeID(item) == SecCertificateGetTypeID()); | |
| 1320 SecCertificateRef first_cert = | |
| 1321 reinterpret_cast<SecCertificateRef>(const_cast<void*>(item)); | |
| 1322 SecIdentityRef identity = | |
| 1323 SecIdentityCreate(NULL, first_cert, context->private_key()); | |
| 1324 CFArrayAppendValue(certs, identity); | |
| 1325 for (CFIndex i = 0; i < chain_length; i++) { | |
| 1326 CFArrayAppendValue(certs, | |
| 1327 CFArrayGetValueAtIndex(context->cert_chain(), i)); | |
| 1328 } | |
| 1329 CFRelease(identity); | |
| 1330 status = SSLSetCertificate(ssl_context, certs); | |
| 1331 CFRelease(certs); | |
| 1332 CheckStatus(status, "TlsException", "SSLSetCertificate failed"); | |
| 1333 } | |
| 1334 | |
| 1335 if (context->cert_authorities() != NULL) { | |
| 1336 status = SSLSetCertificateAuthorities(ssl_context, | |
| 1337 context->cert_authorities(), true); | |
| 1338 CheckStatus(status, "TlsException", | |
| 1339 "Failed to set certificate authorities"); | |
| 1340 } | |
| 1341 | |
| 1342 if (is_server) { | |
| 1343 SSLAuthenticate auth = | |
| 1344 require_client_certificate | |
| 1345 ? kAlwaysAuthenticate | |
| 1346 : (request_client_certificate ? kTryAuthenticate | |
| 1347 : kNeverAuthenticate); | |
| 1348 status = SSLSetClientSideAuthenticate(ssl_context, auth); | |
| 1349 CheckStatus(status, "TlsException", | |
| 1350 "Failed to set client authentication mode"); | |
| 1351 | |
| 1352 // If we're at least trying client authentication, then break handshake | |
| 1353 // for client authentication. | |
| 1354 if (auth != kNeverAuthenticate) { | |
| 1355 status = SSLSetSessionOption(ssl_context, | |
| 1356 kSSLSessionOptionBreakOnClientAuth, true); | |
| 1357 CheckStatus(status, "TlsException", | |
| 1358 "Failed to set client authentication mode"); | |
| 1359 } | |
| 1360 } | |
| 1361 | |
| 1362 // Add the contexts to our wrapper. | |
| 1363 cert_context_.set(context); | |
| 1364 ssl_context_ = ssl_context; | |
| 1365 is_server_ = is_server; | |
| 1366 | |
| 1367 // Kick-off the handshake. Expect the handshake to need more data. | |
| 1368 // SSLHandshake calls our SSLReadCallback and SSLWriteCallback. | |
| 1369 status = SSLHandshake(ssl_context); | |
| 1370 ASSERT(status != noErr); | |
| 1371 if (status == errSSLWouldBlock) { | |
| 1372 status = noErr; | |
| 1373 in_handshake_ = true; | |
| 1374 } | |
| 1375 CheckStatus(status, "HandshakeException", is_server_ | |
| 1376 ? "Handshake error in server" | |
| 1377 : "Handshake error in client"); | |
| 1378 } | |
| 1379 | |
| 1380 | |
| 1381 OSStatus SSLFilter::EvaluatePeerTrust() { | |
| 1382 OSStatus status = noErr; | |
| 1383 | |
| 1384 if (SSL_LOG_STATUS) { | |
| 1385 Log::Print("Handshake evaluating trust.\n"); | |
| 1386 } | |
| 1387 SecTrustRef peer_trust = NULL; | |
| 1388 status = SSLCopyPeerTrust(ssl_context_, &peer_trust); | |
| 1389 if (status != noErr) { | |
| 1390 if (is_server_ && (status == errSSLBadCert)) { | |
| 1391 // A client certificate was requested, but not required, and wasn't sent. | |
| 1392 return noErr; | |
| 1393 } | |
| 1394 if (SSL_LOG_STATUS) { | |
| 1395 Log::Print("Handshake error from SSLCopyPeerTrust(): %ld.\n", | |
| 1396 static_cast<intptr_t>(status)); | |
| 1397 } | |
| 1398 return status; | |
| 1399 } | |
| 1400 | |
| 1401 CFArrayRef trusted_certs = NULL; | |
| 1402 if (cert_context_.get()->trusted_certs() != NULL) { | |
| 1403 trusted_certs = | |
| 1404 CFArrayCreateCopy(NULL, cert_context_.get()->trusted_certs()); | |
| 1405 } else { | |
| 1406 trusted_certs = CFArrayCreate(NULL, NULL, 0, &kCFTypeArrayCallBacks); | |
| 1407 } | |
| 1408 | |
| 1409 status = SecTrustSetAnchorCertificates(peer_trust, trusted_certs); | |
| 1410 if (status != noErr) { | |
| 1411 if (SSL_LOG_STATUS) { | |
| 1412 Log::Print("Handshake error from SecTrustSetAnchorCertificates: %ld\n", | |
| 1413 static_cast<intptr_t>(status)); | |
| 1414 } | |
| 1415 CFRelease(trusted_certs); | |
| 1416 CFRelease(peer_trust); | |
| 1417 return status; | |
| 1418 } | |
| 1419 | |
| 1420 if (SSL_LOG_STATUS) { | |
| 1421 Log::Print( | |
| 1422 "Handshake %s built in root certs\n", | |
| 1423 cert_context_.get()->trust_builtin() ? "trusting" : "not trusting"); | |
| 1424 } | |
| 1425 | |
| 1426 status = SecTrustSetAnchorCertificatesOnly( | |
| 1427 peer_trust, !cert_context_.get()->trust_builtin()); | |
| 1428 if (status != noErr) { | |
| 1429 CFRelease(trusted_certs); | |
| 1430 CFRelease(peer_trust); | |
| 1431 return status; | |
| 1432 } | |
| 1433 | |
| 1434 SecTrustResultType trust_result; | |
| 1435 status = SecTrustEvaluate(peer_trust, &trust_result); | |
| 1436 if (status != noErr) { | |
| 1437 CFRelease(trusted_certs); | |
| 1438 CFRelease(peer_trust); | |
| 1439 return status; | |
| 1440 } | |
| 1441 | |
| 1442 // Grab the peer's certificate chain. | |
| 1443 CFIndex peer_chain_length = SecTrustGetCertificateCount(peer_trust); | |
| 1444 CFMutableArrayRef peer_certs = | |
| 1445 CFArrayCreateMutable(NULL, peer_chain_length, &kCFTypeArrayCallBacks); | |
| 1446 for (CFIndex i = 0; i < peer_chain_length; ++i) { | |
| 1447 CFArrayAppendValue(peer_certs, | |
| 1448 SecTrustGetCertificateAtIndex(peer_trust, i)); | |
| 1449 } | |
| 1450 peer_certs_ = peer_certs; | |
| 1451 | |
| 1452 CFRelease(trusted_certs); | |
| 1453 CFRelease(peer_trust); | |
| 1454 | |
| 1455 if ((trust_result == kSecTrustResultProceed) || | |
| 1456 (trust_result == kSecTrustResultUnspecified)) { | |
| 1457 // Trusted. | |
| 1458 return noErr; | |
| 1459 } else { | |
| 1460 if (SSL_LOG_STATUS) { | |
| 1461 Log::Print("Trust eval failed: trust_restul = %d\n", trust_result); | |
| 1462 } | |
| 1463 bad_cert_ = true; | |
| 1464 return errSSLBadCert; | |
| 1465 } | |
| 1466 } | |
| 1467 | |
| 1468 | |
| 1469 OSStatus SSLFilter::Handshake() { | |
| 1470 ASSERT(cert_context_.get() != NULL); | |
| 1471 ASSERT(ssl_context_ != NULL); | |
| 1472 // Try and push handshake along. | |
| 1473 if (SSL_LOG_STATUS) { | |
| 1474 Log::Print("Doing SSLHandshake\n"); | |
| 1475 } | |
| 1476 OSStatus status = SSLHandshake(ssl_context_); | |
| 1477 if (SSL_LOG_STATUS) { | |
| 1478 Log::Print("SSLHandshake returned %ld\n", static_cast<intptr_t>(status)); | |
| 1479 } | |
| 1480 | |
| 1481 if ((status == errSSLServerAuthCompleted) || | |
| 1482 (status == errSSLClientAuthCompleted)) { | |
| 1483 status = EvaluatePeerTrust(); | |
| 1484 if (status == errSSLBadCert) { | |
| 1485 // Need to invoke the bad certificate callback. | |
| 1486 return noErr; | |
| 1487 } else if (status != noErr) { | |
| 1488 return status; | |
| 1489 } | |
| 1490 // When trust evaluation succeeds, we can call SSLHandshake again | |
| 1491 // immediately. | |
| 1492 status = SSLHandshake(ssl_context_); | |
| 1493 } | |
| 1494 | |
| 1495 if (status == errSSLWouldBlock) { | |
| 1496 in_handshake_ = true; | |
| 1497 return noErr; | |
| 1498 } | |
| 1499 | |
| 1500 // Handshake succeeded. | |
| 1501 if ((in_handshake_) && (status == noErr)) { | |
| 1502 if (SSL_LOG_STATUS) { | |
| 1503 Log::Print("Finished with the Handshake\n"); | |
| 1504 } | |
| 1505 connected_ = true; | |
| 1506 } | |
| 1507 return status; | |
| 1508 } | |
| 1509 | |
| 1510 | |
| 1511 // Returns false if Handshake should fail, and true if Handshake should | |
| 1512 // proceed. | |
| 1513 Dart_Handle SSLFilter::InvokeBadCertCallback(SecCertificateRef peer_cert) { | |
| 1514 Dart_Handle callback = bad_certificate_callback_; | |
| 1515 if (Dart_IsNull(callback)) { | |
| 1516 return callback; | |
| 1517 } | |
| 1518 Dart_Handle args[1]; | |
| 1519 args[0] = WrappedX509Certificate(peer_cert); | |
| 1520 if (Dart_IsError(args[0])) { | |
| 1521 return args[0]; | |
| 1522 } | |
| 1523 Dart_Handle result = Dart_InvokeClosure(callback, 1, args); | |
| 1524 if (!Dart_IsError(result) && !Dart_IsBoolean(result)) { | |
| 1525 result = Dart_NewUnhandledExceptionError(DartUtils::NewDartIOException( | |
| 1526 "HandshakeException", | |
| 1527 "BadCertificateCallback returned a value that was not a boolean", | |
| 1528 Dart_Null())); | |
| 1529 } | |
| 1530 return result; | |
| 1531 } | |
| 1532 | |
| 1533 | |
| 1534 OSStatus SSLFilter::CheckHandshake() { | |
| 1535 if (bad_cert_ && in_handshake_) { | |
| 1536 if (SSL_LOG_STATUS) { | |
| 1537 Log::Print("Invoking bad certificate callback\n"); | |
| 1538 } | |
| 1539 ASSERT(peer_certs_ != NULL); | |
| 1540 CFIndex peer_certs_len = CFArrayGetCount(peer_certs_); | |
| 1541 ASSERT(peer_certs_len > 0); | |
| 1542 CFTypeRef item = CFArrayGetValueAtIndex(peer_certs_, peer_certs_len - 1); | |
| 1543 ASSERT(item != NULL); | |
| 1544 ASSERT(CFGetTypeID(item) == SecCertificateGetTypeID()); | |
| 1545 SecCertificateRef peer_cert = | |
| 1546 reinterpret_cast<SecCertificateRef>(const_cast<void*>(item)); | |
| 1547 Dart_Handle result = InvokeBadCertCallback(peer_cert); | |
| 1548 ThrowIfError(result); | |
| 1549 if (Dart_IsNull(result)) { | |
| 1550 return errSSLBadCert; | |
| 1551 } else { | |
| 1552 bool good_cert = DartUtils::GetBooleanValue(result); | |
| 1553 bad_cert_ = !good_cert; | |
| 1554 return good_cert ? noErr : errSSLBadCert; | |
| 1555 } | |
| 1556 } | |
| 1557 | |
| 1558 if (connected_ && in_handshake_) { | |
| 1559 if (SSL_LOG_STATUS) { | |
| 1560 Log::Print("Invoking handshake complete callback\n"); | |
| 1561 } | |
| 1562 ThrowIfError(Dart_InvokeClosure( | |
| 1563 Dart_HandleFromPersistent(handshake_complete_), 0, NULL)); | |
| 1564 in_handshake_ = false; | |
| 1565 } | |
| 1566 return noErr; | |
| 1567 } | |
| 1568 | |
| 1569 | |
| 1570 void SSLFilter::Renegotiate(bool use_session_cache, | |
| 1571 bool request_client_certificate, | |
| 1572 bool require_client_certificate) { | |
| 1573 // The SSL_REQUIRE_CERTIFICATE option only takes effect if the | |
| 1574 // SSL_REQUEST_CERTIFICATE option is also set, so set it. | |
| 1575 request_client_certificate = | |
| 1576 request_client_certificate || require_client_certificate; | |
| 1577 // TODO(24070, 24069): Implement setting the client certificate parameters, | |
| 1578 // and triggering rehandshake. | |
| 1579 } | |
| 1580 | |
| 1581 | |
| 1582 SSLFilter::~SSLFilter() { | |
| 1583 if (ssl_context_ != NULL) { | |
| 1584 CFRelease(ssl_context_); | |
| 1585 ssl_context_ = NULL; | |
| 1586 } | |
| 1587 if (peer_certs_ != NULL) { | |
| 1588 CFRelease(peer_certs_); | |
| 1589 peer_certs_ = NULL; | |
| 1590 } | |
| 1591 if (hostname_ != NULL) { | |
| 1592 free(hostname_); | |
| 1593 hostname_ = NULL; | |
| 1594 } | |
| 1595 for (int i = 0; i < kNumBuffers; ++i) { | |
| 1596 if (buffers_[i] != NULL) { | |
| 1597 delete[] buffers_[i]; | |
| 1598 buffers_[i] = NULL; | |
| 1599 } | |
| 1600 } | |
| 1601 } | |
| 1602 | |
| 1603 | |
| 1604 void SSLFilter::Destroy() { | |
| 1605 if (ssl_context_ != NULL) { | |
| 1606 SSLClose(ssl_context_); | |
| 1607 } | |
| 1608 for (int i = 0; i < kNumBuffers; ++i) { | |
| 1609 if (dart_buffer_objects_[i] != NULL) { | |
| 1610 Dart_DeletePersistentHandle(dart_buffer_objects_[i]); | |
| 1611 dart_buffer_objects_[i] = NULL; | |
| 1612 } | |
| 1613 } | |
| 1614 if (string_start_ != NULL) { | |
| 1615 Dart_DeletePersistentHandle(string_start_); | |
| 1616 string_start_ = NULL; | |
| 1617 } | |
| 1618 if (string_length_ != NULL) { | |
| 1619 Dart_DeletePersistentHandle(string_length_); | |
| 1620 string_length_ = NULL; | |
| 1621 } | |
| 1622 if (handshake_complete_ != NULL) { | |
| 1623 Dart_DeletePersistentHandle(handshake_complete_); | |
| 1624 handshake_complete_ = NULL; | |
| 1625 } | |
| 1626 if (bad_certificate_callback_ != NULL) { | |
| 1627 Dart_DeletePersistentHandle(bad_certificate_callback_); | |
| 1628 bad_certificate_callback_ = NULL; | |
| 1629 } | |
| 1630 } | |
| 1631 | |
| 1632 | |
| 1633 OSStatus SSLFilter::SSLReadCallback(SSLConnectionRef connection, | |
| 1634 void* data, | |
| 1635 size_t* data_requested) { | |
| 1636 // Copy at most `data_requested` bytes from `buffers_[kReadEncrypted]` into | |
| 1637 // `data` | |
| 1638 ASSERT(connection != NULL); | |
| 1639 ASSERT(data != NULL); | |
| 1640 ASSERT(data_requested != NULL); | |
| 1641 | |
| 1642 SSLFilter* filter = | |
| 1643 const_cast<SSLFilter*>(reinterpret_cast<const SSLFilter*>(connection)); | |
| 1644 uint8_t* datap = reinterpret_cast<uint8_t*>(data); | |
| 1645 uint8_t* buffer = filter->buffers_[kReadEncrypted]; | |
| 1646 intptr_t start = filter->GetBufferStart(kReadEncrypted); | |
| 1647 intptr_t end = filter->GetBufferEnd(kReadEncrypted); | |
| 1648 intptr_t size = filter->encrypted_buffer_size_; | |
| 1649 intptr_t requested = static_cast<intptr_t>(*data_requested); | |
| 1650 intptr_t data_read = 0; | |
| 1651 | |
| 1652 if (end < start) { | |
| 1653 // Data may be split into two segments. In this case, | |
| 1654 // the first is [start, size). | |
| 1655 intptr_t buffer_end = (start == 0) ? size - 1 : size; | |
| 1656 intptr_t available = buffer_end - start; | |
| 1657 intptr_t bytes = requested < available ? requested : available; | |
| 1658 memmove(datap, &buffer[start], bytes); | |
| 1659 start += bytes; | |
| 1660 datap += bytes; | |
| 1661 data_read += bytes; | |
| 1662 requested -= bytes; | |
| 1663 ASSERT(start <= size); | |
| 1664 if (start == size) { | |
| 1665 start = 0; | |
| 1666 } | |
| 1667 } | |
| 1668 if ((requested > 0) && (start < end)) { | |
| 1669 intptr_t available = end - start; | |
| 1670 intptr_t bytes = requested < available ? requested : available; | |
| 1671 memmove(datap, &buffer[start], bytes); | |
| 1672 start += bytes; | |
| 1673 datap += bytes; | |
| 1674 data_read += bytes; | |
| 1675 requested -= bytes; | |
| 1676 ASSERT(start <= end); | |
| 1677 } | |
| 1678 | |
| 1679 if (SSL_LOG_DATA) { | |
| 1680 Log::Print("SSLReadCallback: requested: %ld, read %ld bytes\n", | |
| 1681 *data_requested, data_read); | |
| 1682 } | |
| 1683 | |
| 1684 filter->SetBufferStart(kReadEncrypted, start); | |
| 1685 bool short_read = data_read < static_cast<intptr_t>(*data_requested); | |
| 1686 *data_requested = data_read; | |
| 1687 return short_read ? errSSLWouldBlock : noErr; | |
| 1688 } | |
| 1689 | |
| 1690 | |
| 1691 // Read decrypted data from the filter to the circular buffer. | |
| 1692 OSStatus SSLFilter::ProcessReadPlaintextBuffer(intptr_t start, | |
| 1693 intptr_t end, | |
| 1694 intptr_t* bytes_processed) { | |
| 1695 ASSERT(bytes_processed != NULL); | |
| 1696 intptr_t length = end - start; | |
| 1697 OSStatus status = noErr; | |
| 1698 size_t bytes = 0; | |
| 1699 if (length > 0) { | |
| 1700 status = | |
| 1701 SSLRead(ssl_context_, | |
| 1702 reinterpret_cast<void*>((buffers_[kReadPlaintext] + start)), | |
| 1703 length, &bytes); | |
| 1704 if (SSL_LOG_STATUS) { | |
| 1705 Log::Print("SSLRead: status = %ld\n", static_cast<intptr_t>(status)); | |
| 1706 } | |
| 1707 if ((status != noErr) && (status != errSSLWouldBlock)) { | |
| 1708 *bytes_processed = 0; | |
| 1709 return status; | |
| 1710 } | |
| 1711 } | |
| 1712 if (SSL_LOG_DATA) { | |
| 1713 Log::Print("ProcessReadPlaintextBuffer: requested: %ld, read %ld bytes\n", | |
| 1714 length, bytes); | |
| 1715 } | |
| 1716 *bytes_processed = static_cast<intptr_t>(bytes); | |
| 1717 return status; | |
| 1718 } | |
| 1719 | |
| 1720 | |
| 1721 OSStatus SSLFilter::SSLWriteCallback(SSLConnectionRef connection, | |
| 1722 const void* data, | |
| 1723 size_t* data_provided) { | |
| 1724 // Copy at most `data_provided` bytes from data into | |
| 1725 // `buffers_[kWriteEncrypted]`. | |
| 1726 ASSERT(connection != NULL); | |
| 1727 ASSERT(data != NULL); | |
| 1728 ASSERT(data_provided != NULL); | |
| 1729 | |
| 1730 SSLFilter* filter = | |
| 1731 const_cast<SSLFilter*>(reinterpret_cast<const SSLFilter*>(connection)); | |
| 1732 const uint8_t* datap = reinterpret_cast<const uint8_t*>(data); | |
| 1733 uint8_t* buffer = filter->buffers_[kWriteEncrypted]; | |
| 1734 intptr_t start = filter->GetBufferStart(kWriteEncrypted); | |
| 1735 intptr_t end = filter->GetBufferEnd(kWriteEncrypted); | |
| 1736 intptr_t size = filter->encrypted_buffer_size_; | |
| 1737 intptr_t provided = static_cast<intptr_t>(*data_provided); | |
| 1738 intptr_t data_written = 0; | |
| 1739 | |
| 1740 // is full, neither if statement is executed and nothing happens. | |
| 1741 if (start <= end) { | |
| 1742 // If the free space may be split into two segments, | |
| 1743 // then the first is [end, size), unless start == 0. | |
| 1744 // Then, since the last free byte is at position start - 2, | |
| 1745 // the interval is [end, size - 1). | |
| 1746 intptr_t buffer_end = (start == 0) ? size - 1 : size; | |
| 1747 intptr_t available = buffer_end - end; | |
| 1748 intptr_t bytes = provided < available ? provided : available; | |
| 1749 memmove(&buffer[end], datap, bytes); | |
| 1750 end += bytes; | |
| 1751 datap += bytes; | |
| 1752 data_written += bytes; | |
| 1753 provided -= bytes; | |
| 1754 ASSERT(end <= size); | |
| 1755 if (end == size) { | |
| 1756 end = 0; | |
| 1757 } | |
| 1758 } | |
| 1759 if ((provided > 0) && (start > end + 1)) { | |
| 1760 intptr_t available = (start - 1) - end; | |
| 1761 intptr_t bytes = provided < available ? provided : available; | |
| 1762 memmove(&buffer[end], datap, bytes); | |
| 1763 end += bytes; | |
| 1764 datap += bytes; | |
| 1765 data_written += bytes; | |
| 1766 provided -= bytes; | |
| 1767 ASSERT(end < start); | |
| 1768 } | |
| 1769 | |
| 1770 if (SSL_LOG_DATA) { | |
| 1771 Log::Print("SSLWriteCallback: provided: %ld, written %ld bytes\n", | |
| 1772 *data_provided, data_written); | |
| 1773 } | |
| 1774 | |
| 1775 filter->SetBufferEnd(kWriteEncrypted, end); | |
| 1776 *data_provided = data_written; | |
| 1777 return (data_written == 0) ? errSSLWouldBlock : noErr; | |
| 1778 } | |
| 1779 | |
| 1780 | |
| 1781 OSStatus SSLFilter::ProcessWritePlaintextBuffer(intptr_t start, | |
| 1782 intptr_t end, | |
| 1783 intptr_t* bytes_processed) { | |
| 1784 ASSERT(bytes_processed != NULL); | |
| 1785 intptr_t length = end - start; | |
| 1786 OSStatus status = noErr; | |
| 1787 size_t bytes = 0; | |
| 1788 if (length > 0) { | |
| 1789 status = | |
| 1790 SSLWrite(ssl_context_, | |
| 1791 reinterpret_cast<void*>(buffers_[kWritePlaintext] + start), | |
| 1792 length, &bytes); | |
| 1793 if (SSL_LOG_STATUS) { | |
| 1794 Log::Print("SSLWrite: status = %ld\n", static_cast<intptr_t>(status)); | |
| 1795 } | |
| 1796 if ((status != noErr) && (status != errSSLWouldBlock)) { | |
| 1797 *bytes_processed = 0; | |
| 1798 return status; | |
| 1799 } | |
| 1800 } | |
| 1801 if (SSL_LOG_DATA) { | |
| 1802 Log::Print("ProcessWritePlaintextBuffer: requested: %ld, written: %ld\n", | |
| 1803 length, bytes); | |
| 1804 } | |
| 1805 *bytes_processed = static_cast<intptr_t>(bytes); | |
| 1806 return status; | |
| 1807 } | |
| 1808 | |
| 1809 } // namespace bin | |
| 1810 } // namespace dart | |
| 1811 | |
| 1812 #endif // defined(HOST_OS_MACOS) && !HOST_OS_IOS | |
| 1813 | |
| 1814 #endif // !defined(DART_IO_DISABLED) && | |
| 1815 // !defined(DART_IO_SECURE_SOCKET_DISABLED) | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 2903743002:
Porting SecureSocket to use BoringSSL on OSX (Closed)
