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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/socket/ssl_server_socket_openssl.h" | |
| 6 | |
| 7 #include <openssl/err.h> | |
| 8 #include <openssl/ssl.h> | |
| 9 | |
| 10 #include "base/callback_helpers.h" | |
| 11 #include "base/logging.h" | |
| 12 #include "crypto/openssl_util.h" | |
| 13 #include "crypto/rsa_private_key.h" | |
| 14 #include "crypto/scoped_openssl_types.h" | |
| 15 #include "net/base/net_errors.h" | |
| 16 #include "net/ssl/openssl_ssl_util.h" | |
| 17 | |
| 18 #define GotoState(s) next_handshake_state_ = s | |
| 19 | |
| 20 namespace net { | |
| 21 | |
| 22 void EnableSSLServerSockets() { | |
| 23 // No-op because CreateSSLServerSocket() calls crypto::EnsureOpenSSLInit(). | |
| 24 } | |
| 25 | |
| 26 scoped_ptr<SSLServerSocket> CreateSSLServerSocket( | |
| 27 scoped_ptr<StreamSocket> socket, | |
| 28 X509Certificate* certificate, | |
| 29 crypto::RSAPrivateKey* key, | |
| 30 const SSLConfig& ssl_config) { | |
| 31 crypto::EnsureOpenSSLInit(); | |
| 32 return scoped_ptr<SSLServerSocket>( | |
| 33 new SSLServerSocketOpenSSL(socket.Pass(), certificate, key, ssl_config)); | |
| 34 } | |
| 35 | |
| 36 SSLServerSocketOpenSSL::SSLServerSocketOpenSSL( | |
| 37 scoped_ptr<StreamSocket> transport_socket, | |
| 38 scoped_refptr<X509Certificate> certificate, | |
| 39 crypto::RSAPrivateKey* key, | |
| 40 const SSLConfig& ssl_config) | |
| 41 : transport_send_busy_(false), | |
| 42 transport_recv_busy_(false), | |
| 43 transport_recv_eof_(false), | |
| 44 user_read_buf_len_(0), | |
| 45 user_write_buf_len_(0), | |
| 46 transport_write_error_(OK), | |
| 47 ssl_(NULL), | |
| 48 transport_bio_(NULL), | |
| 49 transport_socket_(transport_socket.Pass()), | |
| 50 ssl_config_(ssl_config), | |
| 51 cert_(certificate), | |
| 52 next_handshake_state_(STATE_NONE), | |
| 53 completed_handshake_(false) { | |
| 54 // TODO(byungchul): Need a better way to clone a key. | |
| 55 std::vector<uint8> key_bytes; | |
| 56 CHECK(key->ExportPrivateKey(&key_bytes)); | |
| 57 key_.reset(crypto::RSAPrivateKey::CreateFromPrivateKeyInfo(key_bytes)); | |
| 58 CHECK(key_.get()); | |
| 59 } | |
| 60 | |
| 61 SSLServerSocketOpenSSL::~SSLServerSocketOpenSSL() { | |
| 62 if (ssl_) { | |
| 63 // Calling SSL_shutdown prevents the session from being marked as | |
| 64 // unresumable. | |
| 65 SSL_shutdown(ssl_); | |
| 66 SSL_free(ssl_); | |
| 67 ssl_ = NULL; | |
| 68 } | |
| 69 if (transport_bio_) { | |
| 70 BIO_free_all(transport_bio_); | |
| 71 transport_bio_ = NULL; | |
| 72 } | |
| 73 } | |
| 74 | |
| 75 int SSLServerSocketOpenSSL::Handshake(const CompletionCallback& callback) { | |
| 76 net_log_.BeginEvent(NetLog::TYPE_SSL_SERVER_HANDSHAKE); | |
| 77 | |
| 78 // Set up new ssl object. | |
| 79 int rv = Init(); | |
| 80 if (rv != OK) { | |
| 81 LOG(ERROR) << "Failed to initialize OpenSSL: rv=" << rv; | |
| 82 net_log_.EndEventWithNetErrorCode(NetLog::TYPE_SSL_SERVER_HANDSHAKE, rv); | |
| 83 return rv; | |
| 84 } | |
| 85 | |
| 86 // Set SSL to server mode. Handshake happens in the loop below. | |
| 87 SSL_set_accept_state(ssl_); | |
| 88 | |
| 89 GotoState(STATE_HANDSHAKE); | |
| 90 rv = DoHandshakeLoop(OK); | |
| 91 if (rv == ERR_IO_PENDING) { | |
| 92 user_handshake_callback_ = callback; | |
| 93 } else { | |
| 94 net_log_.EndEventWithNetErrorCode(NetLog::TYPE_SSL_SERVER_HANDSHAKE, rv); | |
| 95 } | |
| 96 | |
| 97 return rv > OK ? OK : rv; | |
| 98 } | |
| 99 | |
| 100 int SSLServerSocketOpenSSL::ExportKeyingMaterial( | |
| 101 const base::StringPiece& label, | |
| 102 bool has_context, | |
| 103 const base::StringPiece& context, | |
| 104 unsigned char* out, | |
| 105 unsigned int outlen) { | |
| 106 if (!IsConnected()) | |
| 107 return ERR_SOCKET_NOT_CONNECTED; | |
| 108 | |
| 109 crypto::OpenSSLErrStackTracer err_tracer(FROM_HERE); | |
| 110 | |
| 111 int rv = SSL_export_keying_material( | |
| 112 ssl_, out, outlen, label.data(), label.size(), | |
| 113 reinterpret_cast<const unsigned char*>(context.data()), | |
| 114 context.length(), context.length() > 0); | |
| 115 | |
| 116 if (rv != 1) { | |
| 117 int ssl_error = SSL_get_error(ssl_, rv); | |
| 118 LOG(ERROR) << "Failed to export keying material;" | |
| 119 << " returned " << rv | |
| 120 << ", SSL error code " << ssl_error; | |
| 121 return MapOpenSSLError(ssl_error, err_tracer); | |
| 122 } | |
| 123 return OK; | |
| 124 } | |
| 125 | |
| 126 int SSLServerSocketOpenSSL::GetTLSUniqueChannelBinding(std::string* out) { | |
| 127 NOTIMPLEMENTED(); | |
| 128 return ERR_NOT_IMPLEMENTED; | |
| 129 } | |
| 130 | |
| 131 int SSLServerSocketOpenSSL::Read(IOBuffer* buf, int buf_len, | |
| 132 const CompletionCallback& callback) { | |
| 133 DCHECK(user_read_callback_.is_null()); | |
| 134 DCHECK(user_handshake_callback_.is_null()); | |
| 135 DCHECK(!user_read_buf_.get()); | |
| 136 DCHECK(!callback.is_null()); | |
| 137 | |
| 138 user_read_buf_ = buf; | |
| 139 user_read_buf_len_ = buf_len; | |
| 140 | |
| 141 DCHECK(completed_handshake_); | |
| 142 | |
| 143 int rv = DoReadLoop(OK); | |
| 144 | |
| 145 if (rv == ERR_IO_PENDING) { | |
| 146 user_read_callback_ = callback; | |
| 147 } else { | |
| 148 user_read_buf_ = NULL; | |
| 149 user_read_buf_len_ = 0; | |
| 150 } | |
| 151 | |
| 152 return rv; | |
| 153 } | |
| 154 | |
| 155 int SSLServerSocketOpenSSL::Write(IOBuffer* buf, int buf_len, | |
| 156 const CompletionCallback& callback) { | |
| 157 DCHECK(user_write_callback_.is_null()); | |
| 158 DCHECK(!user_write_buf_.get()); | |
| 159 DCHECK(!callback.is_null()); | |
| 160 | |
| 161 user_write_buf_ = buf; | |
| 162 user_write_buf_len_ = buf_len; | |
| 163 | |
| 164 int rv = DoWriteLoop(OK); | |
| 165 | |
| 166 if (rv == ERR_IO_PENDING) { | |
| 167 user_write_callback_ = callback; | |
| 168 } else { | |
| 169 user_write_buf_ = NULL; | |
| 170 user_write_buf_len_ = 0; | |
| 171 } | |
| 172 return rv; | |
| 173 } | |
| 174 | |
| 175 int SSLServerSocketOpenSSL::SetReceiveBufferSize(int32 size) { | |
| 176 return transport_socket_->SetReceiveBufferSize(size); | |
| 177 } | |
| 178 | |
| 179 int SSLServerSocketOpenSSL::SetSendBufferSize(int32 size) { | |
| 180 return transport_socket_->SetSendBufferSize(size); | |
| 181 } | |
| 182 | |
| 183 int SSLServerSocketOpenSSL::Connect(const CompletionCallback& callback) { | |
| 184 NOTIMPLEMENTED(); | |
| 185 return ERR_NOT_IMPLEMENTED; | |
| 186 } | |
| 187 | |
| 188 void SSLServerSocketOpenSSL::Disconnect() { | |
| 189 transport_socket_->Disconnect(); | |
| 190 } | |
| 191 | |
| 192 bool SSLServerSocketOpenSSL::IsConnected() const { | |
| 193 // TODO(wtc): Find out if we should check transport_socket_->IsConnected() | |
| 194 // as well. | |
| 195 return completed_handshake_; | |
| 196 } | |
| 197 | |
| 198 bool SSLServerSocketOpenSSL::IsConnectedAndIdle() const { | |
| 199 return completed_handshake_ && transport_socket_->IsConnectedAndIdle(); | |
| 200 } | |
| 201 | |
| 202 int SSLServerSocketOpenSSL::GetPeerAddress(IPEndPoint* address) const { | |
| 203 if (!IsConnected()) | |
| 204 return ERR_SOCKET_NOT_CONNECTED; | |
| 205 return transport_socket_->GetPeerAddress(address); | |
| 206 } | |
| 207 | |
| 208 int SSLServerSocketOpenSSL::GetLocalAddress(IPEndPoint* address) const { | |
| 209 if (!IsConnected()) | |
| 210 return ERR_SOCKET_NOT_CONNECTED; | |
| 211 return transport_socket_->GetLocalAddress(address); | |
| 212 } | |
| 213 | |
| 214 const BoundNetLog& SSLServerSocketOpenSSL::NetLog() const { | |
| 215 return net_log_; | |
| 216 } | |
| 217 | |
| 218 void SSLServerSocketOpenSSL::SetSubresourceSpeculation() { | |
| 219 transport_socket_->SetSubresourceSpeculation(); | |
| 220 } | |
| 221 | |
| 222 void SSLServerSocketOpenSSL::SetOmniboxSpeculation() { | |
| 223 transport_socket_->SetOmniboxSpeculation(); | |
| 224 } | |
| 225 | |
| 226 bool SSLServerSocketOpenSSL::WasEverUsed() const { | |
| 227 return transport_socket_->WasEverUsed(); | |
| 228 } | |
| 229 | |
| 230 bool SSLServerSocketOpenSSL::UsingTCPFastOpen() const { | |
| 231 return transport_socket_->UsingTCPFastOpen(); | |
| 232 } | |
| 233 | |
| 234 bool SSLServerSocketOpenSSL::WasNpnNegotiated() const { | |
| 235 NOTIMPLEMENTED(); | |
| 236 return false; | |
| 237 } | |
| 238 | |
| 239 NextProto SSLServerSocketOpenSSL::GetNegotiatedProtocol() const { | |
| 240 // NPN is not supported by this class. | |
| 241 return kProtoUnknown; | |
| 242 } | |
| 243 | |
| 244 bool SSLServerSocketOpenSSL::GetSSLInfo(SSLInfo* ssl_info) { | |
| 245 NOTIMPLEMENTED(); | |
| 246 return false; | |
| 247 } | |
| 248 | |
| 249 void SSLServerSocketOpenSSL::OnSendComplete(int result) { | |
| 250 if (next_handshake_state_ == STATE_HANDSHAKE) { | |
| 251 // In handshake phase. | |
| 252 OnHandshakeIOComplete(result); | |
| 253 return; | |
| 254 } | |
| 255 | |
| 256 // TODO(byungchul): This state machine is not correct. Copy the state machine | |
| 257 // of SSLClientSocketOpenSSL::OnSendComplete() which handles it better. | |
| 258 if (!completed_handshake_) | |
| 259 return; | |
| 260 | |
| 261 if (user_write_buf_.get()) { | |
| 262 int rv = DoWriteLoop(result); | |
| 263 if (rv != ERR_IO_PENDING) | |
| 264 DoWriteCallback(rv); | |
| 265 } else { | |
| 266 // Ensure that any queued ciphertext is flushed. | |
| 267 DoTransportIO(); | |
| 268 } | |
| 269 } | |
| 270 | |
| 271 void SSLServerSocketOpenSSL::OnRecvComplete(int result) { | |
| 272 if (next_handshake_state_ == STATE_HANDSHAKE) { | |
| 273 // In handshake phase. | |
| 274 OnHandshakeIOComplete(result); | |
| 275 return; | |
| 276 } | |
| 277 | |
| 278 // Network layer received some data, check if client requested to read | |
| 279 // decrypted data. | |
| 280 if (!user_read_buf_.get() || !completed_handshake_) | |
| 281 return; | |
| 282 | |
| 283 int rv = DoReadLoop(result); | |
| 284 if (rv != ERR_IO_PENDING) | |
| 285 DoReadCallback(rv); | |
| 286 } | |
| 287 | |
| 288 void SSLServerSocketOpenSSL::OnHandshakeIOComplete(int result) { | |
| 289 int rv = DoHandshakeLoop(result); | |
| 290 if (rv == ERR_IO_PENDING) | |
| 291 return; | |
| 292 | |
| 293 net_log_.EndEventWithNetErrorCode(NetLog::TYPE_SSL_SERVER_HANDSHAKE, rv); | |
| 294 if (!user_handshake_callback_.is_null()) | |
| 295 DoHandshakeCallback(rv); | |
| 296 } | |
| 297 | |
| 298 // Return 0 for EOF, | |
| 299 // > 0 for bytes transferred immediately, | |
| 300 // < 0 for error (or the non-error ERR_IO_PENDING). | |
| 301 int SSLServerSocketOpenSSL::BufferSend() { | |
| 302 if (transport_send_busy_) | |
| 303 return ERR_IO_PENDING; | |
| 304 | |
| 305 if (!send_buffer_.get()) { | |
| 306 // Get a fresh send buffer out of the send BIO. | |
| 307 size_t max_read = BIO_pending(transport_bio_); | |
| 308 if (!max_read) | |
| 309 return 0; // Nothing pending in the OpenSSL write BIO. | |
| 310 send_buffer_ = new DrainableIOBuffer(new IOBuffer(max_read), max_read); | |
| 311 int read_bytes = BIO_read(transport_bio_, send_buffer_->data(), max_read); | |
| 312 DCHECK_GT(read_bytes, 0); | |
| 313 CHECK_EQ(static_cast<int>(max_read), read_bytes); | |
| 314 } | |
| 315 | |
| 316 int rv = transport_socket_->Write( | |
| 317 send_buffer_.get(), | |
| 318 send_buffer_->BytesRemaining(), | |
| 319 base::Bind(&SSLServerSocketOpenSSL::BufferSendComplete, | |
| 320 base::Unretained(this))); | |
| 321 if (rv == ERR_IO_PENDING) { | |
| 322 transport_send_busy_ = true; | |
| 323 } else { | |
| 324 TransportWriteComplete(rv); | |
| 325 } | |
| 326 return rv; | |
| 327 } | |
| 328 | |
| 329 void SSLServerSocketOpenSSL::BufferSendComplete(int result) { | |
| 330 transport_send_busy_ = false; | |
| 331 TransportWriteComplete(result); | |
| 332 OnSendComplete(result); | |
| 333 } | |
| 334 | |
| 335 void SSLServerSocketOpenSSL::TransportWriteComplete(int result) { | |
| 336 DCHECK(ERR_IO_PENDING != result); | |
| 337 if (result < 0) { | |
| 338 // Got a socket write error; close the BIO to indicate this upward. | |
| 339 // | |
| 340 // TODO(davidben): The value of |result| gets lost. Feed the error back into | |
| 341 // the BIO so it gets (re-)detected in OnSendComplete. Perhaps with | |
| 342 // BIO_set_callback. | |
| 343 DVLOG(1) << "TransportWriteComplete error " << result; | |
| 344 (void)BIO_shutdown_wr(SSL_get_wbio(ssl_)); | |
| 345 | |
| 346 // Match the fix for http://crbug.com/249848 in NSS by erroring future reads | |
| 347 // from the socket after a write error. | |
| 348 // | |
| 349 // TODO(davidben): Avoid having read and write ends interact this way. | |
| 350 transport_write_error_ = result; | |
| 351 (void)BIO_shutdown_wr(transport_bio_); | |
| 352 send_buffer_ = NULL; | |
| 353 } else { | |
| 354 DCHECK(send_buffer_.get()); | |
| 355 send_buffer_->DidConsume(result); | |
| 356 DCHECK_GE(send_buffer_->BytesRemaining(), 0); | |
| 357 if (send_buffer_->BytesRemaining() <= 0) | |
| 358 send_buffer_ = NULL; | |
| 359 } | |
| 360 } | |
| 361 | |
| 362 int SSLServerSocketOpenSSL::BufferRecv() { | |
| 363 if (transport_recv_busy_) | |
| 364 return ERR_IO_PENDING; | |
| 365 | |
| 366 // Determine how much was requested from |transport_bio_| that was not | |
| 367 // actually available. | |
| 368 size_t requested = BIO_ctrl_get_read_request(transport_bio_); | |
| 369 if (requested == 0) { | |
| 370 // This is not a perfect match of error codes, as no operation is | |
| 371 // actually pending. However, returning 0 would be interpreted as | |
| 372 // a possible sign of EOF, which is also an inappropriate match. | |
| 373 return ERR_IO_PENDING; | |
| 374 } | |
| 375 | |
| 376 // Known Issue: While only reading |requested| data is the more correct | |
| 377 // implementation, it has the downside of resulting in frequent reads: | |
| 378 // One read for the SSL record header (~5 bytes) and one read for the SSL | |
| 379 // record body. Rather than issuing these reads to the underlying socket | |
| 380 // (and constantly allocating new IOBuffers), a single Read() request to | |
| 381 // fill |transport_bio_| is issued. As long as an SSL client socket cannot | |
| 382 // be gracefully shutdown (via SSL close alerts) and re-used for non-SSL | |
| 383 // traffic, this over-subscribed Read()ing will not cause issues. | |
| 384 size_t max_write = BIO_ctrl_get_write_guarantee(transport_bio_); | |
| 385 if (!max_write) | |
| 386 return ERR_IO_PENDING; | |
| 387 | |
| 388 recv_buffer_ = new IOBuffer(max_write); | |
| 389 int rv = transport_socket_->Read( | |
| 390 recv_buffer_.get(), | |
| 391 max_write, | |
| 392 base::Bind(&SSLServerSocketOpenSSL::BufferRecvComplete, | |
| 393 base::Unretained(this))); | |
| 394 if (rv == ERR_IO_PENDING) { | |
| 395 transport_recv_busy_ = true; | |
| 396 } else { | |
| 397 rv = TransportReadComplete(rv); | |
| 398 } | |
| 399 return rv; | |
| 400 } | |
| 401 | |
| 402 void SSLServerSocketOpenSSL::BufferRecvComplete(int result) { | |
| 403 result = TransportReadComplete(result); | |
| 404 OnRecvComplete(result); | |
| 405 } | |
| 406 | |
| 407 int SSLServerSocketOpenSSL::TransportReadComplete(int result) { | |
| 408 DCHECK(ERR_IO_PENDING != result); | |
| 409 if (result <= 0) { | |
| 410 DVLOG(1) << "TransportReadComplete result " << result; | |
| 411 // Received 0 (end of file) or an error. Either way, bubble it up to the | |
| 412 // SSL layer via the BIO. TODO(joth): consider stashing the error code, to | |
| 413 // relay up to the SSL socket client (i.e. via DoReadCallback). | |
| 414 if (result == 0) | |
| 415 transport_recv_eof_ = true; | |
| 416 (void)BIO_shutdown_wr(transport_bio_); | |
| 417 } else if (transport_write_error_ < 0) { | |
| 418 // Mirror transport write errors as read failures; transport_bio_ has been | |
| 419 // shut down by TransportWriteComplete, so the BIO_write will fail, failing | |
| 420 // the CHECK. http://crbug.com/335557. | |
| 421 result = transport_write_error_; | |
| 422 } else { | |
| 423 DCHECK(recv_buffer_.get()); | |
| 424 int ret = BIO_write(transport_bio_, recv_buffer_->data(), result); | |
| 425 // A write into a memory BIO should always succeed. | |
| 426 DCHECK_EQ(result, ret); | |
| 427 } | |
| 428 recv_buffer_ = NULL; | |
| 429 transport_recv_busy_ = false; | |
| 430 return result; | |
| 431 } | |
| 432 | |
| 433 // Do as much network I/O as possible between the buffer and the | |
| 434 // transport socket. Return true if some I/O performed, false | |
| 435 // otherwise (error or ERR_IO_PENDING). | |
| 436 bool SSLServerSocketOpenSSL::DoTransportIO() { | |
| 437 bool network_moved = false; | |
| 438 int rv; | |
| 439 // Read and write as much data as possible. The loop is necessary because | |
| 440 // Write() may return synchronously. | |
| 441 do { | |
| 442 rv = BufferSend(); | |
| 443 if (rv != ERR_IO_PENDING && rv != 0) | |
| 444 network_moved = true; | |
| 445 } while (rv > 0); | |
| 446 if (!transport_recv_eof_ && BufferRecv() != ERR_IO_PENDING) | |
| 447 network_moved = true; | |
| 448 return network_moved; | |
| 449 } | |
| 450 | |
| 451 int SSLServerSocketOpenSSL::DoPayloadRead() { | |
| 452 DCHECK(user_read_buf_.get()); | |
| 453 DCHECK_GT(user_read_buf_len_, 0); | |
| 454 crypto::OpenSSLErrStackTracer err_tracer(FROM_HERE); | |
| 455 int rv = SSL_read(ssl_, user_read_buf_->data(), user_read_buf_len_); | |
| 456 if (rv >= 0) | |
| 457 return rv; | |
| 458 int ssl_error = SSL_get_error(ssl_, rv); | |
| 459 OpenSSLErrorInfo error_info; | |
| 460 int net_error = MapOpenSSLErrorWithDetails(ssl_error, err_tracer, | |
| 461 &error_info); | |
| 462 if (net_error != ERR_IO_PENDING) { | |
| 463 net_log_.AddEvent( | |
| 464 NetLog::TYPE_SSL_READ_ERROR, | |
| 465 CreateNetLogOpenSSLErrorCallback(net_error, ssl_error, error_info)); | |
| 466 } | |
| 467 return net_error; | |
| 468 } | |
| 469 | |
| 470 int SSLServerSocketOpenSSL::DoPayloadWrite() { | |
| 471 DCHECK(user_write_buf_.get()); | |
| 472 crypto::OpenSSLErrStackTracer err_tracer(FROM_HERE); | |
| 473 int rv = SSL_write(ssl_, user_write_buf_->data(), user_write_buf_len_); | |
| 474 if (rv >= 0) | |
| 475 return rv; | |
| 476 int ssl_error = SSL_get_error(ssl_, rv); | |
| 477 OpenSSLErrorInfo error_info; | |
| 478 int net_error = MapOpenSSLErrorWithDetails(ssl_error, err_tracer, | |
| 479 &error_info); | |
| 480 if (net_error != ERR_IO_PENDING) { | |
| 481 net_log_.AddEvent( | |
| 482 NetLog::TYPE_SSL_WRITE_ERROR, | |
| 483 CreateNetLogOpenSSLErrorCallback(net_error, ssl_error, error_info)); | |
| 484 } | |
| 485 return net_error; | |
| 486 } | |
| 487 | |
| 488 int SSLServerSocketOpenSSL::DoHandshakeLoop(int last_io_result) { | |
| 489 int rv = last_io_result; | |
| 490 do { | |
| 491 // Default to STATE_NONE for next state. | |
| 492 // (This is a quirk carried over from the windows | |
| 493 // implementation. It makes reading the logs a bit harder.) | |
| 494 // State handlers can and often do call GotoState just | |
| 495 // to stay in the current state. | |
| 496 State state = next_handshake_state_; | |
| 497 GotoState(STATE_NONE); | |
| 498 switch (state) { | |
| 499 case STATE_HANDSHAKE: | |
| 500 rv = DoHandshake(); | |
| 501 break; | |
| 502 case STATE_NONE: | |
| 503 default: | |
| 504 rv = ERR_UNEXPECTED; | |
| 505 LOG(DFATAL) << "unexpected state " << state; | |
| 506 break; | |
| 507 } | |
| 508 | |
| 509 // Do the actual network I/O | |
| 510 bool network_moved = DoTransportIO(); | |
| 511 if (network_moved && next_handshake_state_ == STATE_HANDSHAKE) { | |
| 512 // In general we exit the loop if rv is ERR_IO_PENDING. In this | |
| 513 // special case we keep looping even if rv is ERR_IO_PENDING because | |
| 514 // the transport IO may allow DoHandshake to make progress. | |
| 515 rv = OK; // This causes us to stay in the loop. | |
| 516 } | |
| 517 } while (rv != ERR_IO_PENDING && next_handshake_state_ != STATE_NONE); | |
| 518 return rv; | |
| 519 } | |
| 520 | |
| 521 int SSLServerSocketOpenSSL::DoReadLoop(int result) { | |
| 522 DCHECK(completed_handshake_); | |
| 523 DCHECK(next_handshake_state_ == STATE_NONE); | |
| 524 | |
| 525 if (result < 0) | |
| 526 return result; | |
| 527 | |
| 528 bool network_moved; | |
| 529 int rv; | |
| 530 do { | |
| 531 rv = DoPayloadRead(); | |
| 532 network_moved = DoTransportIO(); | |
| 533 } while (rv == ERR_IO_PENDING && network_moved); | |
| 534 return rv; | |
| 535 } | |
| 536 | |
| 537 int SSLServerSocketOpenSSL::DoWriteLoop(int result) { | |
| 538 DCHECK(completed_handshake_); | |
| 539 DCHECK_EQ(next_handshake_state_, STATE_NONE); | |
| 540 | |
| 541 if (result < 0) | |
| 542 return result; | |
| 543 | |
| 544 bool network_moved; | |
| 545 int rv; | |
| 546 do { | |
| 547 rv = DoPayloadWrite(); | |
| 548 network_moved = DoTransportIO(); | |
| 549 } while (rv == ERR_IO_PENDING && network_moved); | |
| 550 return rv; | |
| 551 } | |
| 552 | |
| 553 int SSLServerSocketOpenSSL::DoHandshake() { | |
| 554 crypto::OpenSSLErrStackTracer err_tracer(FROM_HERE); | |
| 555 int net_error = OK; | |
| 556 int rv = SSL_do_handshake(ssl_); | |
| 557 | |
| 558 if (rv == 1) { | |
| 559 completed_handshake_ = true; | |
| 560 } else { | |
| 561 int ssl_error = SSL_get_error(ssl_, rv); | |
| 562 OpenSSLErrorInfo error_info; | |
| 563 net_error = MapOpenSSLErrorWithDetails(ssl_error, err_tracer, &error_info); | |
| 564 | |
| 565 // If not done, stay in this state | |
| 566 if (net_error == ERR_IO_PENDING) { | |
| 567 GotoState(STATE_HANDSHAKE); | |
| 568 } else { | |
| 569 LOG(ERROR) << "handshake failed; returned " << rv | |
| 570 << ", SSL error code " << ssl_error | |
| 571 << ", net_error " << net_error; | |
| 572 net_log_.AddEvent( | |
| 573 NetLog::TYPE_SSL_HANDSHAKE_ERROR, | |
| 574 CreateNetLogOpenSSLErrorCallback(net_error, ssl_error, error_info)); | |
| 575 } | |
| 576 } | |
| 577 return net_error; | |
| 578 } | |
| 579 | |
| 580 void SSLServerSocketOpenSSL::DoHandshakeCallback(int rv) { | |
| 581 DCHECK_NE(rv, ERR_IO_PENDING); | |
| 582 ResetAndReturn(&user_handshake_callback_).Run(rv > OK ? OK : rv); | |
| 583 } | |
| 584 | |
| 585 void SSLServerSocketOpenSSL::DoReadCallback(int rv) { | |
| 586 DCHECK(rv != ERR_IO_PENDING); | |
| 587 DCHECK(!user_read_callback_.is_null()); | |
| 588 | |
| 589 user_read_buf_ = NULL; | |
| 590 user_read_buf_len_ = 0; | |
| 591 ResetAndReturn(&user_read_callback_).Run(rv); | |
| 592 } | |
| 593 | |
| 594 void SSLServerSocketOpenSSL::DoWriteCallback(int rv) { | |
| 595 DCHECK(rv != ERR_IO_PENDING); | |
| 596 DCHECK(!user_write_callback_.is_null()); | |
| 597 | |
| 598 user_write_buf_ = NULL; | |
| 599 user_write_buf_len_ = 0; | |
| 600 ResetAndReturn(&user_write_callback_).Run(rv); | |
| 601 } | |
| 602 | |
| 603 int SSLServerSocketOpenSSL::Init() { | |
| 604 DCHECK(!ssl_); | |
| 605 DCHECK(!transport_bio_); | |
| 606 | |
| 607 crypto::OpenSSLErrStackTracer err_tracer(FROM_HERE); | |
| 608 | |
| 609 crypto::ScopedOpenSSL<SSL_CTX, SSL_CTX_free>::Type ssl_ctx( | |
| 610 // It support SSLv2, SSLv3, and TLSv1. | |
| 611 SSL_CTX_new(SSLv23_server_method())); | |
| 612 ssl_ = SSL_new(ssl_ctx.get()); | |
| 613 if (!ssl_) | |
| 614 return ERR_UNEXPECTED; | |
| 615 | |
| 616 BIO* ssl_bio = NULL; | |
| 617 // 0 => use default buffer sizes. | |
| 618 if (!BIO_new_bio_pair(&ssl_bio, 0, &transport_bio_, 0)) | |
| 619 return ERR_UNEXPECTED; | |
| 620 DCHECK(ssl_bio); | |
| 621 DCHECK(transport_bio_); | |
| 622 | |
| 623 SSL_set_bio(ssl_, ssl_bio, ssl_bio); | |
| 624 | |
| 625 // Set certificate and private key. | |
| 626 DCHECK(cert_->os_cert_handle()); | |
| 627 #if defined(USE_OPENSSL_CERTS) | |
| 628 if (SSL_use_certificate(ssl_, cert_->os_cert_handle()) != 1) { | |
| 629 LOG(ERROR) << "Cannot set certificate."; | |
| 630 return ERR_UNEXPECTED; | |
| 631 } | |
| 632 #else | |
| 633 // Convert OSCertHandle to X509 structure. | |
| 634 std::string der_string; | |
| 635 if (!X509Certificate::GetDEREncoded(cert_->os_cert_handle(), &der_string)) | |
| 636 return ERR_UNEXPECTED; | |
| 637 | |
| 638 const unsigned char* der_string_array = | |
| 639 reinterpret_cast<const unsigned char*>(der_string.data()); | |
| 640 | |
| 641 crypto::ScopedOpenSSL<X509, X509_free>::Type x509( | |
| 642 d2i_X509(NULL, &der_string_array, der_string.length())); | |
| 643 if (!x509.get()) | |
| 644 return ERR_UNEXPECTED; | |
| 645 | |
| 646 // On success, SSL_use_certificate acquires a reference to |x509|. | |
| 647 if (SSL_use_certificate(ssl_, x509.get()) != 1) { | |
| 648 LOG(ERROR) << "Cannot set certificate."; | |
| 649 return ERR_UNEXPECTED; | |
| 650 } | |
| 651 #endif // USE_OPENSSL_CERTS | |
| 652 | |
| 653 DCHECK(key_->key()); | |
| 654 if (SSL_use_PrivateKey(ssl_, key_->key()) != 1) { | |
| 655 LOG(ERROR) << "Cannot set private key."; | |
| 656 return ERR_UNEXPECTED; | |
| 657 } | |
| 658 | |
| 659 // OpenSSL defaults some options to on, others to off. To avoid ambiguity, | |
| 660 // set everything we care about to an absolute value. | |
| 661 SslSetClearMask options; | |
| 662 options.ConfigureFlag(SSL_OP_NO_SSLv2, true); | |
| 663 bool ssl3_enabled = (ssl_config_.version_min == SSL_PROTOCOL_VERSION_SSL3); | |
| 664 options.ConfigureFlag(SSL_OP_NO_SSLv3, !ssl3_enabled); | |
| 665 bool tls1_enabled = (ssl_config_.version_min <= SSL_PROTOCOL_VERSION_TLS1 && | |
| 666 ssl_config_.version_max >= SSL_PROTOCOL_VERSION_TLS1); | |
| 667 options.ConfigureFlag(SSL_OP_NO_TLSv1, !tls1_enabled); | |
| 668 bool tls1_1_enabled = | |
| 669 (ssl_config_.version_min <= SSL_PROTOCOL_VERSION_TLS1_1 && | |
| 670 ssl_config_.version_max >= SSL_PROTOCOL_VERSION_TLS1_1); | |
| 671 options.ConfigureFlag(SSL_OP_NO_TLSv1_1, !tls1_1_enabled); | |
| 672 bool tls1_2_enabled = | |
| 673 (ssl_config_.version_min <= SSL_PROTOCOL_VERSION_TLS1_2 && | |
| 674 ssl_config_.version_max >= SSL_PROTOCOL_VERSION_TLS1_2); | |
| 675 options.ConfigureFlag(SSL_OP_NO_TLSv1_2, !tls1_2_enabled); | |
| 676 | |
| 677 options.ConfigureFlag(SSL_OP_NO_COMPRESSION, true); | |
| 678 | |
| 679 SSL_set_options(ssl_, options.set_mask); | |
| 680 SSL_clear_options(ssl_, options.clear_mask); | |
| 681 | |
| 682 // Same as above, this time for the SSL mode. | |
| 683 SslSetClearMask mode; | |
| 684 | |
| 685 mode.ConfigureFlag(SSL_MODE_RELEASE_BUFFERS, true); | |
| 686 | |
| 687 SSL_set_mode(ssl_, mode.set_mask); | |
| 688 SSL_clear_mode(ssl_, mode.clear_mask); | |
| 689 | |
| 690 return OK; | |
| 691 } | |
| 692 | |
| 693 } // 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