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1 karl 1.91 //%2006//////////////////////////////////////////////////////////////////////// 2 // 3 // Copyright (c) 2000, 2001, 2002 BMC Software; Hewlett-Packard Development 4 // Company, L.P.; IBM Corp.; The Open Group; Tivoli Systems. 5 // Copyright (c) 2003 BMC Software; Hewlett-Packard Development Company, L.P.; 6 // IBM Corp.; EMC Corporation, The Open Group. 7 // Copyright (c) 2004 BMC Software; Hewlett-Packard Development Company, L.P.; 8 // IBM Corp.; EMC Corporation; VERITAS Software Corporation; The Open Group. 9 // Copyright (c) 2005 Hewlett-Packard Development Company, L.P.; IBM Corp.; 10 // EMC Corporation; VERITAS Software Corporation; The Open Group. 11 // Copyright (c) 2006 Hewlett-Packard Development Company, L.P.; IBM Corp.; 12 // EMC Corporation; Symantec Corporation; The Open Group. 13 // 14 // Permission is hereby granted, free of charge, to any person obtaining a copy 15 // of this software and associated documentation files (the "Software"), to 16 // deal in the Software without restriction, including without limitation the 17 // rights to use, copy, modify, merge, publish, distribute, sublicense, and/or 18 // sell copies of the Software, and to permit persons to whom the Software is 19 // furnished to do so, subject to the following conditions: 20 // 21 // THE ABOVE COPYRIGHT NOTICE AND THIS PERMISSION NOTICE SHALL BE INCLUDED IN 22 karl 1.91 // ALL COPIES OR SUBSTANTIAL PORTIONS OF THE SOFTWARE. THE SOFTWARE IS PROVIDED 23 // "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT 24 // LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR 25 // PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT 26 // HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 27 // ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 28 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 29 // 30 //============================================================================== 31 // 32 //%///////////////////////////////////////////////////////////////////////////// 33 34 #include "Config.h" 35 #include "Constants.h" 36 #include <iostream> 37 38 #include "Network.h" 39 #include "Socket.h" 40 #include "TLS.h" 41 #include "HTTPAcceptor.h" 42 #include "HTTPConnection.h"
43 dave.sudlik 1.93.4.2 #include "HostAddress.h"
44 karl 1.91 #include "Tracer.h"
45 kumpf 1.93 #include <Pegasus/Common/MessageLoader.h>
46 karl 1.91 47 #ifdef PEGASUS_PLATFORM_OS400_ISERIES_IBM 48 #include "EBCDIC_OS400.h" 49 #endif 50 51 52 PEGASUS_USING_STD; 53 54 PEGASUS_NAMESPACE_BEGIN 55 56 57 static int MAX_CONNECTION_QUEUE_LENGTH = -1; 58 59 //////////////////////////////////////////////////////////////////////////////// 60 // 61 // HTTPAcceptorRep 62 // 63 //////////////////////////////////////////////////////////////////////////////// 64 65 class HTTPAcceptorRep 66 { 67 karl 1.91 public:
68 dave.sudlik 1.93.4.2 HTTPAcceptorRep(Uint16 connectionType)
69 karl 1.91 {
70 dave.sudlik 1.93.4.2 if (connectionType == HTTPAcceptor::LOCAL_CONNECTION)
71 karl 1.91 { 72 #ifndef PEGASUS_DISABLE_LOCAL_DOMAIN_SOCKET
73 kumpf 1.92 address = 74 reinterpret_cast<struct sockaddr*>(new struct sockaddr_un);
75 karl 1.91 address_size = sizeof(struct sockaddr_un); 76 #else 77 PEGASUS_ASSERT(false); 78 #endif 79 }
80 dave.sudlik 1.93.4.2 #ifdef PEGASUS_ENABLE_IPV6 81 else if (connectionType == HTTPAcceptor::IPV6_CONNECTION) 82 { 83 address = 84 reinterpret_cast<struct sockaddr*>(new struct sockaddr_in6); 85 address_size = sizeof(struct sockaddr_in6); 86 } 87 #endif 88 else if (connectionType == HTTPAcceptor::IPV4_CONNECTION)
89 karl 1.91 {
90 kumpf 1.92 address = 91 reinterpret_cast<struct sockaddr*>(new struct sockaddr_in);
92 karl 1.91 address_size = sizeof(struct sockaddr_in); 93 }
94 dave.sudlik 1.93.4.2 else 95 { 96 PEGASUS_ASSERT(false);
97 karl 1.91 }
98 dave.sudlik 1.93.4.2 } 99
100 karl 1.91 ~HTTPAcceptorRep() 101 { 102 delete address; 103 } 104 struct sockaddr* address; 105 106 SocketLength address_size; 107 Mutex _connection_mut; 108 109 SocketHandle socket; 110 Array<HTTPConnection> connections; 111 }; 112 113 114 //////////////////////////////////////////////////////////////////////////////// 115 // 116 // HTTPAcceptor 117 // 118 //////////////////////////////////////////////////////////////////////////////// 119 120 HTTPAcceptor::HTTPAcceptor(Monitor monitor, 121 karl 1.91 MessageQueue* outputMessageQueue,
122 dave.sudlik 1.93.4.2 Uint16 connectionType,
123 karl 1.91 Uint32 portNumber, 124 SSLContext * sslcontext, 125 ReadWriteSem* sslContextObjectLock) 126 : Base(PEGASUS_QUEUENAME_HTTPACCEPTOR), // ATTN: Need unique names? 127 _monitor(monitor), 128 _outputMessageQueue(outputMessageQueue), 129 _rep(0), 130 _entry_index(-1),
131 dave.sudlik 1.93.4.2 _connectionType(connectionType),
132 karl 1.91 _portNumber(portNumber), 133 _sslcontext(sslcontext),
134 dave.sudlik 1.93.4.3 _sslContextObjectLock(sslContextObjectLock), 135 _idleConnectionTimeoutSeconds(0)
136 karl 1.91 { 137 Socket::initializeInterface(); 138 139 /*
140 kumpf 1.92 Platforms interpret the value of MAX_CONNECTION_QUEUE_LENGTH 141 differently. Some platforms interpret the value literally, while 142 others multiply a fudge factor. When the server is under stress from 143 multiple clients with multiple requests, toggling this number may 144 prevent clients from being dropped. Instead of hard coding the 145 value, we allow an environment variable to be set which specifies a 146 number greater than the maximum concurrent client connections 147 possible. If this environment var is not specified, then 148 MAX_CONNECTION_QUEUE_LENGTH = 15.
149 karl 1.91 */ 150
151 kumpf 1.92 //To engage runtime backlog queue length: uncomment the following block AND 152 //comment out the line MAX_CONNECTION_QUEUE_LENGTH = 15
153 karl 1.91 154 /*
155 kumpf 1.92 if (MAX_CONNECTION_QUEUE_LENGTH == -1) 156 {
157 karl 1.91 #ifdef PEGASUS_PLATFORM_OS400_ISERIES_IBM 158 #pragma convert(37)
159 kumpf 1.92 const char* env = getenv("PEGASUS_MAX_BACKLOG_CONNECTION_QUEUE"); 160 EtoA(env);
161 karl 1.91 #pragma convert(0) 162 #else
163 kumpf 1.92 const char* env = getenv("PEGASUS_MAX_BACKLOG_CONNECTION_QUEUE");
164 karl 1.91 #endif
165 kumpf 1.92 if (!env) 166 {
167 karl 1.91 MAX_CONNECTION_QUEUE_LENGTH = 15;
168 kumpf 1.92 } 169 else 170 { 171 char* end = NULL; 172 MAX_CONNECTION_QUEUE_LENGTH = strtol(env, &end, 10); 173 if (*end) 174 MAX_CONNECTION_QUEUE_LENGTH = 15; 175 cout << " MAX_CONNECTION_QUEUE_LENGTH = " << 176 MAX_CONNECTION_QUEUE_LENGTH << endl; 177 }
178 karl 1.91 } 179 */
180 kumpf 1.92 MAX_CONNECTION_QUEUE_LENGTH = 15;
181 karl 1.91 } 182 183 HTTPAcceptor::~HTTPAcceptor() 184 {
185 kumpf 1.92 destroyConnections(); 186 unbind(); 187 // ATTN: Is this correct in a multi-HTTPAcceptor server? 188 Socket::uninitializeInterface();
189 karl 1.91 } 190 191 void HTTPAcceptor::handleEnqueue(Message *message) 192 {
193 kumpf 1.92 if (!message) 194 return; 195 196 PEGASUS_ASSERT(_rep != 0); 197 switch (message->getType()) 198 { 199 case SOCKET_MESSAGE: 200 { 201 SocketMessage* socketMessage = (SocketMessage*)message; 202 203 // If this is a connection request: 204 205 if (socketMessage->socket == _rep->socket && 206 socketMessage->events & SocketMessage::READ) 207 { 208 _acceptConnection(); 209 } 210 else 211 { 212 // ATTN! this can't happen!
213 marek 1.93.4.1 PEG_TRACE_CSTRING(TRC_DISCARDED_DATA, Tracer::LEVEL2,
214 kumpf 1.92 "HTTPAcceptor::handleEnqueue: Invalid SOCKET_MESSAGE " 215 "received."); 216 }
217 karl 1.91 218 break;
219 kumpf 1.92 } 220 221 case CLOSE_CONNECTION_MESSAGE: 222 { 223 CloseConnectionMessage* closeConnectionMessage = 224 (CloseConnectionMessage)message; 225 226 AutoMutex autoMut(_rep->_connection_mut); 227 228 for (Uint32 i = 0, n = _rep->connections.size(); i < n; i++) 229 { 230 HTTPConnection connection = _rep->connections[i]; 231 SocketHandle socket = connection->getSocket(); 232 233 if (socket == closeConnectionMessage->socket) 234 { 235 _monitor->unsolicitSocketMessages(socket); 236 _rep->connections.remove(i); 237 delete connection; 238 break; 239 } 240 kumpf 1.92 }
241 karl 1.91
242 kumpf 1.92 break; 243 }
244 karl 1.91
245 kumpf 1.92 default: 246 // ATTN: need unexpected message error!
247 marek 1.93.4.1 PEG_TRACE_CSTRING(TRC_DISCARDED_DATA, Tracer::LEVEL2,
248 kumpf 1.92 "HTTPAcceptor::handleEnqueue: Invalid MESSAGE received."); 249 break; 250 }
251 karl 1.91
252 kumpf 1.92 delete message;
253 karl 1.91 } 254 255 256 void HTTPAcceptor::handleEnqueue() 257 {
258 kumpf 1.92 Message* message = dequeue();
259 karl 1.91
260 kumpf 1.92 if (!message) 261 {
262 marek 1.93.4.1 PEG_TRACE_CSTRING(TRC_DISCARDED_DATA, Tracer::LEVEL2,
263 kumpf 1.92 "HTTPAcceptor::handleEnqueue(): No message on queue."); 264 return; 265 }
266 karl 1.91
267 kumpf 1.92 handleEnqueue(message);
268 karl 1.91 } 269 270 void HTTPAcceptor::bind() 271 {
272 kumpf 1.92 if (_rep) 273 { 274 MessageLoaderParms parms("Common.HTTPAcceptor.ALREADY_BOUND", 275 "HTTPAcceptor already bound");
276 karl 1.91
277 marek 1.93.4.1 PEG_TRACE_CSTRING(TRC_DISCARDED_DATA, Tracer::LEVEL2,
278 kumpf 1.92 "HTTPAcceptor::bind: HTTPAcceptor already bound."); 279 throw BindFailedException(parms); 280 }
281 karl 1.91
282 dave.sudlik 1.93.4.2 _rep = new HTTPAcceptorRep(_connectionType);
283 karl 1.91
284 kumpf 1.92 // bind address 285 _bind();
286 karl 1.91 } 287 288 /**
289 kumpf 1.92 _bind - creates a new server socket and bind socket to the port address. 290 If PEGASUS_DISABLE_LOCAL_DOMAIN_SOCKET is not defined, the port number is 291 ignored and a domain socket is bound.
292 karl 1.91 */ 293 void HTTPAcceptor::_bind() 294 {
295 kumpf 1.92 PEGASUS_ASSERT(_rep != 0); 296 // Create address:
297 dave.sudlik 1.93.4.2 memset(_rep->address, 0, _rep->address_size);
298 karl 1.91
299 dave.sudlik 1.93.4.2 if (_connectionType == LOCAL_CONNECTION)
300 kumpf 1.92 {
301 karl 1.91 #ifndef PEGASUS_DISABLE_LOCAL_DOMAIN_SOCKET
302 kumpf 1.92 reinterpret_cast<struct sockaddr_un>(_rep->address)->sun_family = 303 AF_UNIX; 304 strcpy(reinterpret_cast<struct sockaddr_un>(_rep->address)->sun_path, 305 PEGASUS_LOCAL_DOMAIN_SOCKET_PATH);
306 karl 1.91 #ifdef PEGASUS_PLATFORM_OS400_ISERIES_IBM
307 kumpf 1.92 AtoE(reinterpret_cast<struct sockaddr_un*>(_rep->address)->sun_path);
308 karl 1.91 #endif
309 kumpf 1.92 ::unlink( 310 reinterpret_cast<struct sockaddr_un*>(_rep->address)->sun_path);
311 karl 1.91 #else
312 kumpf 1.92 PEGASUS_ASSERT(false);
313 karl 1.91 #endif
314 kumpf 1.92 }
315 dave.sudlik 1.93.4.2 #ifdef PEGASUS_ENABLE_IPV6 316 else if (_connectionType == IPV6_CONNECTION) 317 { 318 reinterpret_cast<struct sockaddr_in6>(_rep->address)->sin6_addr = 319 in6addr_any; 320 reinterpret_cast<struct sockaddr_in6>(_rep->address)->sin6_family = 321 AF_INET6; 322 reinterpret_cast<struct sockaddr_in6*>(_rep->address)->sin6_port = 323 htons(_portNumber); 324 } 325 #endif 326 else if(_connectionType == IPV4_CONNECTION)
327 kumpf 1.92 { 328 reinterpret_cast<struct sockaddr_in>(_rep->address)->sin_addr.s_addr = 329 INADDR_ANY; 330 reinterpret_cast<struct sockaddr_in>(_rep->address)->sin_family = 331 AF_INET; 332 reinterpret_cast<struct sockaddr_in*>(_rep->address)->sin_port = 333 htons(_portNumber); 334 }
335 dave.sudlik 1.93.4.2 else 336 { 337 PEGASUS_ASSERT(false); 338 }
339 kumpf 1.92 340 // Create socket: 341
342 dave.sudlik 1.93.4.2 if (_connectionType == LOCAL_CONNECTION)
343 kumpf 1.92 { 344 _rep->socket = Socket::createSocket(AF_UNIX, SOCK_STREAM, 0); 345 }
346 dave.sudlik 1.93.4.2 #ifdef PEGASUS_ENABLE_IPV6 347 else if (_connectionType == IPV6_CONNECTION) 348 { 349 _rep->socket = Socket::createSocket(PF_INET6, SOCK_STREAM, IPPROTO_TCP); 350 } 351 #endif 352 else if (_connectionType == IPV4_CONNECTION)
353 kumpf 1.92 { 354 _rep->socket = Socket::createSocket(PF_INET, SOCK_STREAM, IPPROTO_TCP); 355 }
356 dave.sudlik 1.93.4.2 else 357 { 358 PEGASUS_ASSERT(false); 359 }
360 kumpf 1.92 361 if (_rep->socket < 0) 362 { 363 delete _rep; 364 _rep = 0; 365 MessageLoaderParms parms("Common.HTTPAcceptor.FAILED_CREATE_SOCKET", 366 "Failed to create socket");
367 marek 1.93.4.1 PEG_TRACE_CSTRING(TRC_DISCARDED_DATA, Tracer::LEVEL2,
368 kumpf 1.92 "HTTPAcceptor::_bind _rep->socket < 0"); 369 throw BindFailedException(parms); 370 }
371 karl 1.91
372 kumpf 1.93.4.4 Socket::disableBlocking(_rep->socket);
373 karl 1.91 374 // set the close-on-exec bit for this file handle. 375 // any unix that forks needs this bit set. 376 #if !defined PEGASUS_OS_TYPE_WINDOWS && !defined(PEGASUS_OS_VMS)
377 kumpf 1.92 int sock_flags; 378 if ((sock_flags = fcntl(_rep->socket, F_GETFD, 0)) < 0) 379 {
380 marek 1.93.4.1 PEG_TRACE_CSTRING(TRC_DISCARDED_DATA, Tracer::LEVEL2,
381 kumpf 1.92 "HTTPAcceptor::_bind: fcntl(F_GETFD) failed"); 382 } 383 else 384 { 385 sock_flags \|= FD_CLOEXEC; 386 if (fcntl(_rep->socket, F_SETFD, sock_flags) < 0) 387 {
388 marek 1.93.4.1 PEG_TRACE_CSTRING(TRC_DISCARDED_DATA, Tracer::LEVEL2,
389 kumpf 1.92 "HTTPAcceptor::_bind: fcntl(F_SETFD) failed"); 390 } 391 } 392 #endif 393 394 395 // 396 // Set the socket option SO_REUSEADDR to reuse the socket address so 397 // that we can rebind to a new socket using the same address when we 398 // need to resume the cimom as a result of a timeout during a Shutdown 399 // operation. 400 // 401 int opt=1; 402 if (setsockopt(_rep->socket, SOL_SOCKET, SO_REUSEADDR, 403 (char *)&opt, sizeof(opt)) < 0) 404 { 405 Socket::close(_rep->socket); 406 delete _rep; 407 _rep = 0; 408 MessageLoaderParms parms("Common.HTTPAcceptor.FAILED_SET_SOCKET_OPTION", 409 "Failed to set socket option");
410 marek 1.93.4.1 PEG_TRACE_CSTRING(TRC_DISCARDED_DATA, Tracer::LEVEL2,
411 kumpf 1.92 "HTTPAcceptor::_bind: Failed to set socket option."); 412 throw BindFailedException(parms); 413 } 414 415 416 // 417 // Bind socket to port: 418 // 419 if (::bind(_rep->socket, _rep->address, _rep->address_size) < 0) 420 { 421 Socket::close(_rep->socket); 422 delete _rep; 423 _rep = 0; 424 MessageLoaderParms parms("Common.HTTPAcceptor.FAILED_BIND_SOCKET", 425 "Failed to bind socket");
426 marek 1.93.4.1 PEG_TRACE_CSTRING(TRC_DISCARDED_DATA, Tracer::LEVEL2,
427 kumpf 1.92 "HTTPAcceptor::_bind: Failed to bind socket."); 428 throw BindFailedException(parms); 429 } 430 431 432 // 433 // Get the actual port value used if the caller specified a port value of 0. 434 // 435 if (_portNumber == 0) 436 { 437 sockaddr_in buf; 438 SocketLength bufSize = sizeof(buf); 439 if (getsockname(_rep->socket, reinterpret_cast<sockaddr *>(&buf), 440 &bufSize) == 0 ) 441 { 442 _portNumber = ntohs(buf.sin_port); 443 } 444 } 445 446 447 // 448 kumpf 1.92 // Change permissions on Linux local domain socket to allow writes by 449 // others. 450 //
451 karl 1.91 #if !defined(PEGASUS_DISABLE_LOCAL_DOMAIN_SOCKET) && \
452 kumpf 1.92 (defined(PEGASUS_PLATFORM_LINUX_GENERIC_GNU) \|\| \ 453 defined(PEGASUS_PLATFORM_ZOS_ZSERIES_IBM))
454 dave.sudlik 1.93.4.2 if (_connectionType == LOCAL_CONNECTION)
455 kumpf 1.92 { 456 if (::chmod(PEGASUS_LOCAL_DOMAIN_SOCKET_PATH, 457 S_IRUSR \| S_IWUSR \| S_IXUSR \| 458 S_IRGRP \| S_IWGRP \| S_IXGRP \| 459 S_IROTH \| S_IWOTH \| S_IXOTH ) < 0 ) 460 { 461 Socket::close(_rep->socket); 462 delete _rep; 463 _rep = 0; 464 MessageLoaderParms parms("Common.HTTPAcceptor.FAILED_BIND_SOCKET", 465 "Failed to bind socket");
466 marek 1.93.4.1 PEG_TRACE_CSTRING(TRC_DISCARDED_DATA, Tracer::LEVEL2,
467 kumpf 1.92 "HTTPAcceptor::_bind: Failed to set domain socket " 468 "permissions."); 469 throw BindFailedException(parms); 470 } 471 } 472 #endif 473 474 // Set up listening on the given socket: 475 476 //int const MAX_CONNECTION_QUEUE_LENGTH = 15; 477 478 if (listen(_rep->socket, MAX_CONNECTION_QUEUE_LENGTH) < 0) 479 { 480 Socket::close(_rep->socket); 481 delete _rep; 482 _rep = 0; 483 MessageLoaderParms parms("Common.HTTPAcceptor.FAILED_BIND_SOCKET", 484 "Failed to bind socket");
485 marek 1.93.4.1 PEG_TRACE_CSTRING(TRC_DISCARDED_DATA, Tracer::LEVEL2,
486 kumpf 1.92 "HTTPAcceptor::_bind: Failed to bind socket(1)."); 487 throw BindFailedException(parms); 488 } 489 490 // Register to receive SocketMessages on this socket: 491 492 if (-1 == ( _entry_index = _monitor->solicitSocketMessages( 493 _rep->socket, 494 SocketMessage::READ \| SocketMessage::EXCEPTION, 495 getQueueId(), 496 Monitor::ACCEPTOR))) 497 { 498 Socket::close(_rep->socket); 499 delete _rep; 500 _rep = 0; 501 MessageLoaderParms parms( 502 "Common.HTTPAcceptor.FAILED_SOLICIT_SOCKET_MESSAGES", 503 "Failed to solicit socket messaeges");
504 marek 1.93.4.1 PEG_TRACE_CSTRING(TRC_DISCARDED_DATA, Tracer::LEVEL2,
505 kumpf 1.92 "HTTPAcceptor::_bind: Failed to solicit socket messages(2)."); 506 throw BindFailedException(parms); 507 }
508 karl 1.91 } 509 510 /**
511 kumpf 1.92 closeConnectionSocket - close the server listening socket to disallow 512 new client connections.
513 karl 1.91 */ 514 void HTTPAcceptor::closeConnectionSocket() 515 {
516 kumpf 1.92 if (_rep) 517 { 518 // unregister the socket 519 520 // ATTN - comment out - see CIMServer::stopClientConnection() 521 //_monitor->unsolicitSocketMessages(_rep->socket); 522 523 // close the socket 524 Socket::close(_rep->socket); 525 // Unlink Local Domain Socket Bug# 3312
526 dave.sudlik 1.93.4.2 if (_connectionType == LOCAL_CONNECTION)
527 kumpf 1.92 {
528 karl 1.91 #ifndef PEGASUS_DISABLE_LOCAL_DOMAIN_SOCKET
529 marek 1.93.4.1 PEG_TRACE_CSTRING(TRC_HTTP, Tracer::LEVEL2,
530 kumpf 1.92 "HTTPAcceptor::closeConnectionSocket Unlinking local " 531 "connection."); 532 ::unlink( 533 reinterpret_cast<struct sockaddr_un*>(_rep->address)->sun_path);
534 karl 1.91 #else
535 kumpf 1.92 PEGASUS_ASSERT(false);
536 karl 1.91 #endif
537 kumpf 1.92 } 538 } 539 else 540 {
541 marek 1.93.4.1 PEG_TRACE_CSTRING(TRC_DISCARDED_DATA, Tracer::LEVEL2,
542 kumpf 1.92 "HTTPAcceptor::closeConnectionSocket failure _rep is null."); 543 }
544 karl 1.91 } 545 546 /** 547 reopenConnectionSocket - creates a new server socket. 548 */ 549 void HTTPAcceptor::reopenConnectionSocket() 550 {
551 kumpf 1.92 if (_rep) 552 { 553 _bind(); 554 } 555 else 556 {
557 marek 1.93.4.1 PEG_TRACE_CSTRING(TRC_DISCARDED_DATA, Tracer::LEVEL2,
558 kumpf 1.92 "HTTPAcceptor::reopenConnectionSocket failure _rep is null."); 559 }
560 karl 1.91 } 561 562 563 /** 564 reconnectConnectionSocket - creates a new server socket. 565 */ 566 void HTTPAcceptor::reconnectConnectionSocket() 567 {
568 kumpf 1.92 if (_rep) 569 { 570 // unregister the socket 571 _monitor->unsolicitSocketMessages(_rep->socket); 572 // close the socket 573 Socket::close(_rep->socket); 574 // Unlink Local Domain Socket Bug# 3312
575 dave.sudlik 1.93.4.2 if (_connectionType == LOCAL_CONNECTION)
576 kumpf 1.92 {
577 karl 1.91 #ifndef PEGASUS_DISABLE_LOCAL_DOMAIN_SOCKET
578 marek 1.93.4.1 PEG_TRACE_CSTRING(TRC_HTTP, Tracer::LEVEL2,
579 kumpf 1.92 "HTTPAcceptor::reconnectConnectionSocket Unlinking local " 580 "connection." ); 581 ::unlink( 582 reinterpret_cast<struct sockaddr_un*>(_rep->address)->sun_path);
583 karl 1.91 #else
584 kumpf 1.92 PEGASUS_ASSERT(false);
585 karl 1.91 #endif
586 kumpf 1.92 } 587 // open the socket 588 _bind(); 589 } 590 else 591 {
592 marek 1.93.4.1 PEG_TRACE_CSTRING(TRC_DISCARDED_DATA, Tracer::LEVEL2,
593 kumpf 1.92 "HTTPAcceptor::reconnectConnectionSocket failure _rep is null."); 594 }
595 karl 1.91 } 596 597 /**
598 kumpf 1.92 getOutstandingRequestCount - returns the number of outstanding requests.
599 karl 1.91 */ 600 Uint32 HTTPAcceptor::getOutstandingRequestCount() const 601 {
602 kumpf 1.92 Uint32 count = 0; 603 if (_rep) 604 { 605 AutoMutex autoMut(_rep->_connection_mut); 606 if (_rep->connections.size() > 0) 607 { 608 HTTPConnection* connection = _rep->connections[0]; 609 count = connection->getRequestCount(); 610 } 611 } 612 return count;
613 karl 1.91 } 614 615 616 /** 617 getPortNumber - returns the port number used for the connection 618 */ 619 Uint32 HTTPAcceptor::getPortNumber() const 620 { 621 return _portNumber; 622 } 623 624 void HTTPAcceptor::setSocketWriteTimeout(Uint32 socketWriteTimeout) 625 { 626 _socketWriteTimeout = socketWriteTimeout; 627 } 628
629 dave.sudlik 1.93.4.3 void HTTPAcceptor::setIdleConnectionTimeout(Uint32 idleConnectionTimeoutSeconds) 630 { 631 _idleConnectionTimeoutSeconds = idleConnectionTimeoutSeconds; 632 } 633
634 karl 1.91 void HTTPAcceptor::unbind() 635 {
636 kumpf 1.92 if (_rep) 637 { 638 _portNumber = 0; 639 Socket::close(_rep->socket);
640 karl 1.91
641 dave.sudlik 1.93.4.2 if (_connectionType == LOCAL_CONNECTION)
642 kumpf 1.92 {
643 karl 1.91 #ifndef PEGASUS_DISABLE_LOCAL_DOMAIN_SOCKET
644 kumpf 1.92 ::unlink( 645 reinterpret_cast<struct sockaddr_un*>(_rep->address)->sun_path);
646 karl 1.91 #else
647 kumpf 1.92 PEGASUS_ASSERT(false);
648 karl 1.91 #endif
649 kumpf 1.92 }
650 karl 1.91
651 kumpf 1.92 delete _rep; 652 _rep = 0; 653 } 654 else 655 {
656 marek 1.93.4.1 PEG_TRACE_CSTRING(TRC_DISCARDED_DATA, Tracer::LEVEL2,
657 kumpf 1.92 "HTTPAcceptor::unbind failure _rep is null." ); 658 }
659 karl 1.91 } 660 661 void HTTPAcceptor::destroyConnections() 662 {
663 kumpf 1.92 if (_rep) 664 { 665 // For each connection created by this object:
666 karl 1.91
667 kumpf 1.92 AutoMutex autoMut(_rep->_connection_mut); 668 for (Uint32 i = 0, n = _rep->connections.size(); i < n; i++) 669 { 670 HTTPConnection* connection = _rep->connections[i]; 671 SocketHandle socket = connection->getSocket();
672 karl 1.91
673 kumpf 1.92 // Unsolicit SocketMessages:
674 karl 1.91
675 kumpf 1.92 _monitor->unsolicitSocketMessages(socket);
676 karl 1.91
677 kumpf 1.92 // Destroy the connection (causing it to close):
678 karl 1.91
679 kumpf 1.92 while (connection->refcount.get()) { } 680 delete connection; 681 }
682 karl 1.91
683 kumpf 1.92 _rep->connections.clear(); 684 }
685 karl 1.91 } 686 687 void HTTPAcceptor::_acceptConnection() 688 {
689 kumpf 1.92 // This function cannot be called on an invalid socket!
690 karl 1.91
691 kumpf 1.92 PEGASUS_ASSERT(_rep != 0);
692 karl 1.91
693 kumpf 1.92 // Accept the connection (populate the address):
694 karl 1.91
695 kumpf 1.92 struct sockaddr* accept_address; 696 SocketLength address_size;
697 karl 1.91
698 dave.sudlik 1.93.4.2 if (_connectionType == LOCAL_CONNECTION)
699 kumpf 1.92 {
700 karl 1.91 #ifndef PEGASUS_DISABLE_LOCAL_DOMAIN_SOCKET
701 kumpf 1.92 accept_address = 702 reinterpret_cast<struct sockaddr*>(new struct sockaddr_un); 703 address_size = sizeof(struct sockaddr_un);
704 karl 1.91 #else
705 kumpf 1.92 PEGASUS_ASSERT(false);
706 karl 1.91 #endif
707 kumpf 1.92 } 708 else 709 {
710 dave.sudlik 1.93.4.2 #ifdef PEGASUS_ENABLE_IPV6 711 accept_address = 712 reinterpret_cast<struct sockaddr*> 713 (new struct sockaddr_storage); 714 address_size = sizeof(struct sockaddr_storage); 715 #else
716 kumpf 1.92 accept_address = 717 reinterpret_cast<struct sockaddr*>(new struct sockaddr_in); 718 address_size = sizeof(struct sockaddr_in);
719 dave.sudlik 1.93.4.2 #endif
720 kumpf 1.92 } 721
722 kumpf 1.93.4.4 // It is not necessary to handle EINTR errors from this accept() call. 723 // An EINTR error should not occur on a non-blocking socket. If the 724 // listen socket is blocking and EINTR occurs, the new socket connection 725 // is not accepted here. 726 727 // EAGAIN errors are also not handled here. An EAGAIN error should not 728 // occur after select() indicates that the listen socket is available for 729 // reading. If the accept() fails with an EAGAIN error code, a new 730 // connection is not accepted here. 731
732 kumpf 1.92 SocketHandle socket = accept(_rep->socket, accept_address, &address_size); 733 734 if (socket == PEGASUS_SOCKET_ERROR) 735 { 736 // the remote connection is invalid, destroy client address. 737 delete accept_address; 738 739 // TCPIP is down reconnect this acceptor 740 if (getSocketError() == PEGASUS_NETWORK_TCPIP_STOPPED) 741 {
742 marek 1.93.4.1 PEG_TRACE_CSTRING(TRC_DISCARDED_DATA, Tracer::LEVEL2,
743 kumpf 1.92 "Socket has an IO error. TCP/IP down. Try to reconnect."); 744 745 reconnectConnectionSocket(); 746 747 return; 748 }
749 karl 1.91
750 kumpf 1.92 Logger::put(Logger::STANDARD_LOG, System::CIMSERVER, Logger::TRACE, 751 "HTTPAcceptor - accept() failure. errno: $0", errno);
752 karl 1.91
753 marek 1.93.4.1 PEG_TRACE_CSTRING(TRC_DISCARDED_DATA, Tracer::LEVEL2,
754 kumpf 1.92 "HTTPAcceptor: accept() failed"); 755 return; 756 }
757 marek 1.93.4.5 // We need to ensure that the socket number is not higher than 758 // what fits into FD_SETSIZE, because we else won't be able to select on it 759 // and won't ever communicate correct on that socket. 760 if (socket >= FD_SETSIZE) 761 { 762 // the remote connection is invalid, destroy client address. 763 delete accept_address; 764 765 Logger::put(Logger::STANDARD_LOG, System::CIMSERVER, Logger::TRACE, 766 "HTTPAcceptor out of available sockets. " 767 "Closing connection to the new client."); 768 769 PEG_TRACE( 770 (TRC_DISCARDED_DATA, 771 Tracer::LEVEL2, 772 "accept() returned too large socket number %d.", 773 socket)); 774 775 // close the connection 776 Socket::close(socket); 777 return; 778 marek 1.93.4.5 }
779 sushma.fernandes 1.93.4.7
780 karl 1.91
781 kumpf 1.92 String ipAddress;
782 karl 1.91
783 dave.sudlik 1.93.4.2 if (_connectionType == LOCAL_CONNECTION)
784 kumpf 1.92 { 785 ipAddress = "localhost"; 786 } 787 else 788 {
789 dave.sudlik 1.93.4.2 #ifdef PEGASUS_ENABLE_IPV6 790 char ipBuffer[PEGASUS_INET6_ADDRSTR_LEN]; 791 int rc; 792 while ((rc = getnameinfo(accept_address, address_size, ipBuffer, 793 PEGASUS_INET6_ADDRSTR_LEN, 0, 0, NI_NUMERICHOST)) == EAI_AGAIN) 794 ; 795 if (rc) 796 { 797 Logger::put(Logger::STANDARD_LOG, System::CIMSERVER, Logger::TRACE, 798 "HTTPAcceptor - getnameinfo() failure. rc: $0", rc); 799 800 PEG_TRACE_CSTRING(TRC_DISCARDED_DATA, Tracer::LEVEL2, 801 "HTTPAcceptor: getnameinfo() failed"); 802 delete accept_address; 803 Socket::close(socket); 804 return; 805 } 806 ipAddress = ipBuffer; 807 #else
808 kumpf 1.92 unsigned char* sa = reinterpret_cast<unsigned char>( 809 &reinterpret_cast<struct sockaddr_in>( 810 accept_address)->sin_addr.s_addr); 811 char ipBuffer[32]; 812 sprintf(ipBuffer, "%u.%u.%u.%u", sa[0], sa[1], sa[2], sa[3]); 813 ipAddress = ipBuffer;
814 dave.sudlik 1.93.4.2 #endif
815 kumpf 1.92 }
816 karl 1.91
817 kumpf 1.92 delete accept_address;
818 karl 1.91 819 // set the close on exec flag 820 #if !defined(PEGASUS_OS_TYPE_WINDOWS) && !defined(PEGASUS_OS_VMS)
821 kumpf 1.92 int sock_flags; 822 if ((sock_flags = fcntl(socket, F_GETFD, 0)) < 0) 823 {
824 marek 1.93.4.1 PEG_TRACE_CSTRING(TRC_DISCARDED_DATA, Tracer::LEVEL2,
825 kumpf 1.92 "HTTPAcceptor: fcntl(F_GETFD) failed"); 826 } 827 else 828 { 829 sock_flags \|= FD_CLOEXEC; 830 if (fcntl(socket, F_SETFD, sock_flags) < 0) 831 {
832 marek 1.93.4.1 PEG_TRACE_CSTRING(TRC_DISCARDED_DATA, Tracer::LEVEL2,
833 kumpf 1.92 "HTTPAcceptor: fcntl(F_SETFD) failed"); 834 } 835 }
836 karl 1.91 #endif 837 838
839 kumpf 1.92 PEG_LOGGER_TRACE((Logger::STANDARD_LOG, System::CIMSERVER, 0, 840 "HTTPAcceptor - accept() success. Socket: $1" ,socket)); 841 842 AutoPtr<MP_Socket> mp_socket(new MP_Socket( 843 socket, _sslcontext, _sslContextObjectLock)); 844
845 kumpf 1.93.4.4 mp_socket->disableBlocking();
846 kumpf 1.92 mp_socket->setSocketWriteTimeout(_socketWriteTimeout); 847
848 kumpf 1.93.4.4 // Perform the SSL handshake, if applicable.
849 kumpf 1.92 850 Sint32 socketAcceptStatus = mp_socket->accept(); 851 852 if (socketAcceptStatus < 0) 853 {
854 marek 1.93.4.1 PEG_TRACE_CSTRING(TRC_DISCARDED_DATA, Tracer::LEVEL2,
855 kumpf 1.92 "HTTPAcceptor: SSL_accept() failed"); 856 mp_socket->close(); 857 return; 858 } 859 860 // Create a new connection and add it to the connection list: 861 862 HTTPConnection* connection = new HTTPConnection(_monitor, mp_socket, 863 ipAddress, this, static_cast<MessageQueue *>(_outputMessageQueue)); 864
865 dave.sudlik 1.93.4.3 if (_idleConnectionTimeoutSeconds) 866 { 867 connection->_idleConnectionTimeoutSeconds = 868 _idleConnectionTimeoutSeconds; 869 Time::gettimeofday(&connection->_idleStartTime); 870 } 871
872 kumpf 1.92 if (socketAcceptStatus == 0) 873 {
874 marek 1.93.4.1 PEG_TRACE_CSTRING(TRC_HTTP, Tracer::LEVEL2,
875 kumpf 1.92 "HTTPAcceptor: SSL_accept() pending"); 876 connection->_acceptPending = true;
877 dave.sudlik 1.93.4.3 Time::gettimeofday(&connection->_acceptPendingStartTime);
878 kumpf 1.92 }
879 karl 1.91
880 kumpf 1.92 // Solicit events on this new connection's socket: 881 int index;
882 karl 1.91
883 kumpf 1.92 if (-1 == (index = _monitor->solicitSocketMessages( 884 connection->getSocket(), 885 SocketMessage::READ \| SocketMessage::EXCEPTION, 886 connection->getQueueId(), Monitor::CONNECTION)) ) 887 { 888 // ATTN-DE-P2-2003100503::TODO::Need to enhance code to return 889 // an error message to Client application.
890 marek 1.93.4.1 PEG_TRACE_CSTRING(TRC_DISCARDED_DATA, Tracer::LEVEL2,
891 kumpf 1.92 "HTTPAcceptor::_acceptConnection: Attempt to allocate entry in " 892 "_entries table failed."); 893 delete connection; 894 Socket::close(socket); 895 return; 896 }
897 karl 1.91
898 kumpf 1.92 // Save the socket for cleanup later: 899 connection->_entry_index = index; 900 AutoMutex autoMut(_rep->_connection_mut); 901 _rep->connections.append(connection);
902 karl 1.91 } 903
904 kumpf 1.92 PEGASUS_NAMESPACE_END

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