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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 1.101 #include "HostAddress.h"
44 karl 1.91 #include "Tracer.h"
45 kumpf 1.93 #include <Pegasus/Common/MessageLoader.h>
46 karl 1.91
47 ouyang.jian 1.102 #ifdef PEGASUS_OS_PASE 48 # include <as400_protos.h> 49 # include <Pegasus/Common/PaseCcsid.h> 50 #endif 51
52 karl 1.91 PEGASUS_USING_STD; 53 54 PEGASUS_NAMESPACE_BEGIN 55 56
57 mateus.baur 1.103 static int _maxConnectionQueueLength = -1;
58 karl 1.91 59 //////////////////////////////////////////////////////////////////////////////// 60 // 61 // HTTPAcceptorRep 62 // 63 //////////////////////////////////////////////////////////////////////////////// 64 65 class HTTPAcceptorRep 66 { 67 public:
68 dave.sudlik 1.101 HTTPAcceptorRep(Uint16 connectionType)
69 karl 1.91 {
70 dave.sudlik 1.101 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 1.101 #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 1.101 else 95 { 96 PEGASUS_ASSERT(false);
97 karl 1.91 }
98 dave.sudlik 1.101 } 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 1.101 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 1.101 _connectionType(connectionType),
132 karl 1.91 _portNumber(portNumber), 133 _sslcontext(sslcontext),
134 dave.sudlik 1.106.2.1 _sslContextObjectLock(sslContextObjectLock), 135 _idleConnectionTimeoutSeconds(0)
136 karl 1.91 { 137 Socket::initializeInterface(); 138 139 /*
140 mateus.baur 1.103 Platforms interpret the value of _maxConnectionQueueLength
141 kumpf 1.92 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 mateus.baur 1.103 _maxConnectionQueueLength = 15.
149 karl 1.91 */ 150
151 kumpf 1.92 //To engage runtime backlog queue length: uncomment the following block AND
152 mateus.baur 1.103 //comment out the line _maxConnectionQueueLength = 15
153 karl 1.91 154 /*
155 mateus.baur 1.103 if (_maxConnectionQueueLength == -1)
156 kumpf 1.92 { 157 const char* env = getenv("PEGASUS_MAX_BACKLOG_CONNECTION_QUEUE"); 158 if (!env) 159 {
160 mateus.baur 1.103 _maxConnectionQueueLength = 15;
161 kumpf 1.92 } 162 else 163 { 164 char* end = NULL;
165 mateus.baur 1.103 _maxConnectionQueueLength = strtol(env, &end, 10);
166 kumpf 1.92 if (*end)
167 mateus.baur 1.103 _maxConnectionQueueLength = 15; 168 cout << " _maxConnectionQueueLength = " << 169 _maxConnectionQueueLength << endl;
170 kumpf 1.92 }
171 karl 1.91 } 172 */
173 mateus.baur 1.103 #ifdef PEGASUS_WMIMAPPER 174 //The WMI Mapper can be used as a proxy to multiple WMI Servers. 175 //If a client application simultaneously initiates connections 176 //to many Windows systems, many of these connections may be routed 177 //to a single WMI Mapper. A larger _maxConnectionQueueLength 178 //value is required to allow these connections to be initiated 179 //successfully. 180 _maxConnectionQueueLength = 40; 181 #else 182 _maxConnectionQueueLength = 15; 183 #endif
184 karl 1.91 } 185 186 HTTPAcceptor::~HTTPAcceptor() 187 {
188 kumpf 1.92 destroyConnections(); 189 unbind(); 190 // ATTN: Is this correct in a multi-HTTPAcceptor server? 191 Socket::uninitializeInterface();
192 karl 1.91 } 193 194 void HTTPAcceptor::handleEnqueue(Message *message) 195 {
196 kumpf 1.92 if (!message) 197 return; 198 199 PEGASUS_ASSERT(_rep != 0); 200 switch (message->getType()) 201 { 202 case SOCKET_MESSAGE: 203 { 204 SocketMessage* socketMessage = (SocketMessage*)message; 205 206 // If this is a connection request: 207 208 if (socketMessage->socket == _rep->socket && 209 socketMessage->events & SocketMessage::READ) 210 { 211 _acceptConnection(); 212 } 213 else 214 { 215 // ATTN! this can't happen!
216 marek 1.95 PEG_TRACE_CSTRING(TRC_DISCARDED_DATA, Tracer::LEVEL2,
217 kumpf 1.92 "HTTPAcceptor::handleEnqueue: Invalid SOCKET_MESSAGE " 218 "received."); 219 }
220 karl 1.91 221 break;
222 kumpf 1.92 } 223 224 case CLOSE_CONNECTION_MESSAGE: 225 { 226 CloseConnectionMessage* closeConnectionMessage = 227 (CloseConnectionMessage)message; 228 229 AutoMutex autoMut(_rep->_connection_mut); 230 231 for (Uint32 i = 0, n = _rep->connections.size(); i < n; i++) 232 { 233 HTTPConnection connection = _rep->connections[i]; 234 SocketHandle socket = connection->getSocket(); 235 236 if (socket == closeConnectionMessage->socket) 237 { 238 _monitor->unsolicitSocketMessages(socket); 239 _rep->connections.remove(i); 240 delete connection; 241 break; 242 } 243 kumpf 1.92 }
244 karl 1.91
245 kumpf 1.92 break; 246 }
247 karl 1.91
248 kumpf 1.92 default: 249 // ATTN: need unexpected message error!
250 marek 1.95 PEG_TRACE_CSTRING(TRC_DISCARDED_DATA, Tracer::LEVEL2,
251 kumpf 1.92 "HTTPAcceptor::handleEnqueue: Invalid MESSAGE received."); 252 break; 253 }
254 karl 1.91
255 kumpf 1.92 delete message;
256 karl 1.91 } 257 258 259 void HTTPAcceptor::handleEnqueue() 260 {
261 kumpf 1.92 Message* message = dequeue();
262 karl 1.91
263 kumpf 1.92 if (!message) 264 {
265 marek 1.95 PEG_TRACE_CSTRING(TRC_DISCARDED_DATA, Tracer::LEVEL2,
266 kumpf 1.92 "HTTPAcceptor::handleEnqueue(): No message on queue."); 267 return; 268 }
269 karl 1.91
270 kumpf 1.92 handleEnqueue(message);
271 karl 1.91 } 272 273 void HTTPAcceptor::bind() 274 {
275 kumpf 1.92 if (_rep) 276 { 277 MessageLoaderParms parms("Common.HTTPAcceptor.ALREADY_BOUND", 278 "HTTPAcceptor already bound");
279 karl 1.91
280 marek 1.95 PEG_TRACE_CSTRING(TRC_DISCARDED_DATA, Tracer::LEVEL2,
281 kumpf 1.92 "HTTPAcceptor::bind: HTTPAcceptor already bound."); 282 throw BindFailedException(parms); 283 }
284 karl 1.91
285 dave.sudlik 1.101 _rep = new HTTPAcceptorRep(_connectionType);
286 karl 1.91
287 kumpf 1.92 // bind address 288 _bind();
289 karl 1.91 } 290 291 /**
292 kumpf 1.92 _bind - creates a new server socket and bind socket to the port address. 293 If PEGASUS_DISABLE_LOCAL_DOMAIN_SOCKET is not defined, the port number is 294 ignored and a domain socket is bound.
295 karl 1.91 */ 296 void HTTPAcceptor::_bind() 297 {
298 ouyang.jian 1.102 #ifdef PEGASUS_OS_PASE 299 // bind need ccsid is 819 300 int orig_ccsid; 301 orig_ccsid = _SETCCSID(-1); 302 if (orig_ccsid == -1) 303 { 304 PEG_TRACE_STRING(TRC_DISCARDED_DATA, Tracer::LEVEL2, 305 String("HTTPAcceptor::_bind: Can not get current PASE CCSID.")); 306 orig_ccsid = 1208; 307 } 308 PaseCcsid ccsid(819, orig_ccsid); 309 #endif 310
311 kumpf 1.92 PEGASUS_ASSERT(_rep != 0); 312 // Create address:
313 dave.sudlik 1.101 memset(_rep->address, 0, _rep->address_size);
314 karl 1.91
315 dave.sudlik 1.101 if (_connectionType == LOCAL_CONNECTION)
316 kumpf 1.92 {
317 karl 1.91 #ifndef PEGASUS_DISABLE_LOCAL_DOMAIN_SOCKET
318 kumpf 1.100 // 319 // Make sure the local domain socket can be owned by the cimserver 320 // user. Otherwise, the bind may fail with a vague "bind failed" 321 // error. 322 // 323 if (System::exists(PEGASUS_LOCAL_DOMAIN_SOCKET_PATH)) 324 { 325 if (!System::removeFile(PEGASUS_LOCAL_DOMAIN_SOCKET_PATH)) 326 { 327 throw CannotRemoveFile(PEGASUS_LOCAL_DOMAIN_SOCKET_PATH); 328 } 329 } 330
331 kumpf 1.92 reinterpret_cast<struct sockaddr_un>(_rep->address)->sun_family = 332 AF_UNIX; 333 strcpy(reinterpret_cast<struct sockaddr_un>(_rep->address)->sun_path, 334 PEGASUS_LOCAL_DOMAIN_SOCKET_PATH);
335 karl 1.91 #else
336 kumpf 1.92 PEGASUS_ASSERT(false);
337 karl 1.91 #endif
338 kumpf 1.92 }
339 dave.sudlik 1.101 #ifdef PEGASUS_ENABLE_IPV6 340 else if (_connectionType == IPV6_CONNECTION) 341 { 342 reinterpret_cast<struct sockaddr_in6>(_rep->address)->sin6_addr = 343 in6addr_any; 344 reinterpret_cast<struct sockaddr_in6>(_rep->address)->sin6_family = 345 AF_INET6; 346 reinterpret_cast<struct sockaddr_in6*>(_rep->address)->sin6_port = 347 htons(_portNumber); 348 } 349 #endif 350 else if(_connectionType == IPV4_CONNECTION)
351 kumpf 1.92 { 352 reinterpret_cast<struct sockaddr_in>(_rep->address)->sin_addr.s_addr = 353 INADDR_ANY; 354 reinterpret_cast<struct sockaddr_in>(_rep->address)->sin_family = 355 AF_INET; 356 reinterpret_cast<struct sockaddr_in*>(_rep->address)->sin_port = 357 htons(_portNumber); 358 }
359 dave.sudlik 1.101 else 360 { 361 PEGASUS_ASSERT(false); 362 }
363 kumpf 1.92 364 // Create socket: 365
366 dave.sudlik 1.101 if (_connectionType == LOCAL_CONNECTION)
367 kumpf 1.92 { 368 _rep->socket = Socket::createSocket(AF_UNIX, SOCK_STREAM, 0); 369 }
370 dave.sudlik 1.101 #ifdef PEGASUS_ENABLE_IPV6 371 else if (_connectionType == IPV6_CONNECTION) 372 { 373 _rep->socket = Socket::createSocket(PF_INET6, SOCK_STREAM, IPPROTO_TCP); 374 } 375 #endif 376 else if (_connectionType == IPV4_CONNECTION) 377 { 378 _rep->socket = Socket::createSocket(PF_INET, SOCK_STREAM, IPPROTO_TCP); 379 }
380 kumpf 1.92 else 381 {
382 dave.sudlik 1.101 PEGASUS_ASSERT(false);
383 kumpf 1.92 } 384 385 if (_rep->socket < 0) 386 { 387 delete _rep; 388 _rep = 0; 389 MessageLoaderParms parms("Common.HTTPAcceptor.FAILED_CREATE_SOCKET", 390 "Failed to create socket");
391 marek 1.95 PEG_TRACE_CSTRING(TRC_DISCARDED_DATA, Tracer::LEVEL2,
392 kumpf 1.92 "HTTPAcceptor::_bind _rep->socket < 0"); 393 throw BindFailedException(parms); 394 }
395 karl 1.91
396 kumpf 1.106.2.2 Socket::disableBlocking(_rep->socket);
397 karl 1.91 398 // set the close-on-exec bit for this file handle. 399 // any unix that forks needs this bit set. 400 #if !defined PEGASUS_OS_TYPE_WINDOWS && !defined(PEGASUS_OS_VMS)
401 kumpf 1.92 int sock_flags; 402 if ((sock_flags = fcntl(_rep->socket, F_GETFD, 0)) < 0) 403 {
404 marek 1.95 PEG_TRACE_CSTRING(TRC_DISCARDED_DATA, Tracer::LEVEL2,
405 kumpf 1.92 "HTTPAcceptor::_bind: fcntl(F_GETFD) failed"); 406 } 407 else 408 { 409 sock_flags \|= FD_CLOEXEC; 410 if (fcntl(_rep->socket, F_SETFD, sock_flags) < 0) 411 {
412 marek 1.95 PEG_TRACE_CSTRING(TRC_DISCARDED_DATA, Tracer::LEVEL2,
413 kumpf 1.92 "HTTPAcceptor::_bind: fcntl(F_SETFD) failed"); 414 } 415 } 416 #endif 417 418 419 // 420 // Set the socket option SO_REUSEADDR to reuse the socket address so 421 // that we can rebind to a new socket using the same address when we 422 // need to resume the cimom as a result of a timeout during a Shutdown 423 // operation. 424 // 425 int opt=1; 426 if (setsockopt(_rep->socket, SOL_SOCKET, SO_REUSEADDR, 427 (char *)&opt, sizeof(opt)) < 0) 428 { 429 Socket::close(_rep->socket); 430 delete _rep; 431 _rep = 0; 432 MessageLoaderParms parms("Common.HTTPAcceptor.FAILED_SET_SOCKET_OPTION", 433 "Failed to set socket option");
434 marek 1.95 PEG_TRACE_CSTRING(TRC_DISCARDED_DATA, Tracer::LEVEL2,
435 kumpf 1.92 "HTTPAcceptor::_bind: Failed to set socket option."); 436 throw BindFailedException(parms); 437 } 438 439 440 // 441 // Bind socket to port: 442 // 443 if (::bind(_rep->socket, _rep->address, _rep->address_size) < 0) 444 { 445 Socket::close(_rep->socket); 446 delete _rep; 447 _rep = 0; 448 MessageLoaderParms parms("Common.HTTPAcceptor.FAILED_BIND_SOCKET", 449 "Failed to bind socket");
450 marek 1.95 PEG_TRACE_CSTRING(TRC_DISCARDED_DATA, Tracer::LEVEL2,
451 kumpf 1.92 "HTTPAcceptor::_bind: Failed to bind socket."); 452 throw BindFailedException(parms); 453 } 454 455 456 // 457 // Get the actual port value used if the caller specified a port value of 0. 458 // 459 if (_portNumber == 0) 460 { 461 sockaddr_in buf; 462 SocketLength bufSize = sizeof(buf); 463 if (getsockname(_rep->socket, reinterpret_cast<sockaddr *>(&buf), 464 &bufSize) == 0 ) 465 { 466 _portNumber = ntohs(buf.sin_port); 467 } 468 } 469 470 471 // 472 kumpf 1.92 // Change permissions on Linux local domain socket to allow writes by 473 // others. 474 //
475 karl 1.91 #if !defined(PEGASUS_DISABLE_LOCAL_DOMAIN_SOCKET) && \
476 kumpf 1.92 (defined(PEGASUS_PLATFORM_LINUX_GENERIC_GNU) \|\| \ 477 defined(PEGASUS_PLATFORM_ZOS_ZSERIES_IBM))
478 dave.sudlik 1.101 if (_connectionType == LOCAL_CONNECTION)
479 kumpf 1.92 { 480 if (::chmod(PEGASUS_LOCAL_DOMAIN_SOCKET_PATH, 481 S_IRUSR \| S_IWUSR \| S_IXUSR \| 482 S_IRGRP \| S_IWGRP \| S_IXGRP \| 483 S_IROTH \| S_IWOTH \| S_IXOTH ) < 0 ) 484 { 485 Socket::close(_rep->socket); 486 delete _rep; 487 _rep = 0; 488 MessageLoaderParms parms("Common.HTTPAcceptor.FAILED_BIND_SOCKET", 489 "Failed to bind socket");
490 marek 1.95 PEG_TRACE_CSTRING(TRC_DISCARDED_DATA, Tracer::LEVEL2,
491 kumpf 1.92 "HTTPAcceptor::_bind: Failed to set domain socket " 492 "permissions."); 493 throw BindFailedException(parms); 494 } 495 } 496 #endif 497 498 // Set up listening on the given socket: 499
500 mateus.baur 1.103 //int const _maxConnectionQueueLength = 15;
501 kumpf 1.92
502 mateus.baur 1.103 if (listen(_rep->socket, _maxConnectionQueueLength) < 0)
503 kumpf 1.92 { 504 Socket::close(_rep->socket); 505 delete _rep; 506 _rep = 0; 507 MessageLoaderParms parms("Common.HTTPAcceptor.FAILED_BIND_SOCKET", 508 "Failed to bind socket");
509 marek 1.95 PEG_TRACE_CSTRING(TRC_DISCARDED_DATA, Tracer::LEVEL2,
510 kumpf 1.92 "HTTPAcceptor::_bind: Failed to bind socket(1)."); 511 throw BindFailedException(parms); 512 } 513 514 // Register to receive SocketMessages on this socket: 515 516 if (-1 == ( _entry_index = _monitor->solicitSocketMessages( 517 _rep->socket, 518 SocketMessage::READ \| SocketMessage::EXCEPTION, 519 getQueueId(), 520 Monitor::ACCEPTOR))) 521 { 522 Socket::close(_rep->socket); 523 delete _rep; 524 _rep = 0; 525 MessageLoaderParms parms( 526 "Common.HTTPAcceptor.FAILED_SOLICIT_SOCKET_MESSAGES", 527 "Failed to solicit socket messaeges");
528 marek 1.95 PEG_TRACE_CSTRING(TRC_DISCARDED_DATA, Tracer::LEVEL2,
529 kumpf 1.92 "HTTPAcceptor::_bind: Failed to solicit socket messages(2)."); 530 throw BindFailedException(parms); 531 }
532 karl 1.91 } 533 534 /**
535 kumpf 1.92 closeConnectionSocket - close the server listening socket to disallow 536 new client connections.
537 karl 1.91 */ 538 void HTTPAcceptor::closeConnectionSocket() 539 {
540 kumpf 1.92 if (_rep) 541 { 542 // unregister the socket 543 544 // ATTN - comment out - see CIMServer::stopClientConnection() 545 //_monitor->unsolicitSocketMessages(_rep->socket); 546 547 // close the socket 548 Socket::close(_rep->socket); 549 // Unlink Local Domain Socket Bug# 3312
550 dave.sudlik 1.101 if (_connectionType == LOCAL_CONNECTION)
551 kumpf 1.92 {
552 karl 1.91 #ifndef PEGASUS_DISABLE_LOCAL_DOMAIN_SOCKET
553 marek 1.95 PEG_TRACE_CSTRING(TRC_HTTP, Tracer::LEVEL2,
554 kumpf 1.92 "HTTPAcceptor::closeConnectionSocket Unlinking local " 555 "connection."); 556 ::unlink( 557 reinterpret_cast<struct sockaddr_un*>(_rep->address)->sun_path);
558 karl 1.91 #else
559 kumpf 1.92 PEGASUS_ASSERT(false);
560 karl 1.91 #endif
561 kumpf 1.92 } 562 } 563 else 564 {
565 marek 1.95 PEG_TRACE_CSTRING(TRC_DISCARDED_DATA, Tracer::LEVEL2,
566 kumpf 1.92 "HTTPAcceptor::closeConnectionSocket failure _rep is null."); 567 }
568 karl 1.91 } 569 570 /** 571 reopenConnectionSocket - creates a new server socket. 572 */ 573 void HTTPAcceptor::reopenConnectionSocket() 574 {
575 kumpf 1.92 if (_rep) 576 { 577 _bind(); 578 } 579 else 580 {
581 marek 1.95 PEG_TRACE_CSTRING(TRC_DISCARDED_DATA, Tracer::LEVEL2,
582 kumpf 1.92 "HTTPAcceptor::reopenConnectionSocket failure _rep is null."); 583 }
584 karl 1.91 } 585 586 587 /** 588 reconnectConnectionSocket - creates a new server socket. 589 */ 590 void HTTPAcceptor::reconnectConnectionSocket() 591 {
592 kumpf 1.92 if (_rep) 593 { 594 // unregister the socket 595 _monitor->unsolicitSocketMessages(_rep->socket); 596 // close the socket 597 Socket::close(_rep->socket); 598 // Unlink Local Domain Socket Bug# 3312
599 dave.sudlik 1.101 if (_connectionType == LOCAL_CONNECTION)
600 kumpf 1.92 {
601 karl 1.91 #ifndef PEGASUS_DISABLE_LOCAL_DOMAIN_SOCKET
602 marek 1.95 PEG_TRACE_CSTRING(TRC_HTTP, Tracer::LEVEL2,
603 kumpf 1.92 "HTTPAcceptor::reconnectConnectionSocket Unlinking local " 604 "connection." ); 605 ::unlink( 606 reinterpret_cast<struct sockaddr_un*>(_rep->address)->sun_path);
607 karl 1.91 #else
608 kumpf 1.92 PEGASUS_ASSERT(false);
609 karl 1.91 #endif
610 kumpf 1.92 } 611 // open the socket 612 _bind(); 613 } 614 else 615 {
616 marek 1.95 PEG_TRACE_CSTRING(TRC_DISCARDED_DATA, Tracer::LEVEL2,
617 kumpf 1.92 "HTTPAcceptor::reconnectConnectionSocket failure _rep is null."); 618 }
619 karl 1.91 } 620 621 /**
622 kumpf 1.92 getOutstandingRequestCount - returns the number of outstanding requests.
623 karl 1.91 */ 624 Uint32 HTTPAcceptor::getOutstandingRequestCount() const 625 {
626 kumpf 1.92 Uint32 count = 0; 627 if (_rep) 628 { 629 AutoMutex autoMut(_rep->_connection_mut);
630 kumpf 1.106.2.3 for (Uint32 i = 0, n = _rep->connections.size(); i < n; i++)
631 kumpf 1.92 {
632 kumpf 1.106.2.3 HTTPConnection* connection = _rep->connections[i]; 633 if (connection->isResponsePending()) 634 { 635 count++; 636 }
637 kumpf 1.92 } 638 } 639 return count;
640 karl 1.91 } 641 642 643 /** 644 getPortNumber - returns the port number used for the connection 645 */ 646 Uint32 HTTPAcceptor::getPortNumber() const 647 { 648 return _portNumber; 649 } 650 651 void HTTPAcceptor::setSocketWriteTimeout(Uint32 socketWriteTimeout) 652 { 653 _socketWriteTimeout = socketWriteTimeout; 654 } 655
656 dave.sudlik 1.106.2.1 void HTTPAcceptor::setIdleConnectionTimeout(Uint32 idleConnectionTimeoutSeconds) 657 { 658 _idleConnectionTimeoutSeconds = idleConnectionTimeoutSeconds; 659 } 660
661 karl 1.91 void HTTPAcceptor::unbind() 662 {
663 kumpf 1.92 if (_rep) 664 { 665 _portNumber = 0; 666 Socket::close(_rep->socket);
667 karl 1.91
668 dave.sudlik 1.101 if (_connectionType == LOCAL_CONNECTION)
669 kumpf 1.92 {
670 karl 1.91 #ifndef PEGASUS_DISABLE_LOCAL_DOMAIN_SOCKET
671 kumpf 1.92 ::unlink( 672 reinterpret_cast<struct sockaddr_un*>(_rep->address)->sun_path);
673 karl 1.91 #else
674 kumpf 1.92 PEGASUS_ASSERT(false);
675 karl 1.91 #endif
676 kumpf 1.92 }
677 karl 1.91
678 kumpf 1.92 delete _rep; 679 _rep = 0; 680 } 681 else 682 {
683 marek 1.95 PEG_TRACE_CSTRING(TRC_DISCARDED_DATA, Tracer::LEVEL2,
684 kumpf 1.92 "HTTPAcceptor::unbind failure _rep is null." ); 685 }
686 karl 1.91 } 687 688 void HTTPAcceptor::destroyConnections() 689 {
690 kumpf 1.92 if (_rep) 691 { 692 // For each connection created by this object:
693 karl 1.91
694 kumpf 1.92 AutoMutex autoMut(_rep->_connection_mut); 695 for (Uint32 i = 0, n = _rep->connections.size(); i < n; i++) 696 { 697 HTTPConnection* connection = _rep->connections[i]; 698 SocketHandle socket = connection->getSocket();
699 karl 1.91
700 kumpf 1.92 // Unsolicit SocketMessages:
701 karl 1.91
702 kumpf 1.92 _monitor->unsolicitSocketMessages(socket);
703 karl 1.91
704 kumpf 1.92 // Destroy the connection (causing it to close):
705 karl 1.91
706 kumpf 1.92 while (connection->refcount.get()) { } 707 delete connection; 708 }
709 karl 1.91
710 kumpf 1.92 _rep->connections.clear(); 711 }
712 karl 1.91 } 713 714 void HTTPAcceptor::_acceptConnection() 715 {
716 kumpf 1.92 // This function cannot be called on an invalid socket!
717 karl 1.91
718 kumpf 1.92 PEGASUS_ASSERT(_rep != 0);
719 karl 1.91
720 kumpf 1.92 // Accept the connection (populate the address):
721 karl 1.91
722 kumpf 1.92 struct sockaddr* accept_address; 723 SocketLength address_size;
724 karl 1.91
725 dave.sudlik 1.101 if (_connectionType == LOCAL_CONNECTION)
726 kumpf 1.92 {
727 karl 1.91 #ifndef PEGASUS_DISABLE_LOCAL_DOMAIN_SOCKET
728 kumpf 1.92 accept_address = 729 reinterpret_cast<struct sockaddr*>(new struct sockaddr_un); 730 address_size = sizeof(struct sockaddr_un);
731 karl 1.91 #else
732 kumpf 1.92 PEGASUS_ASSERT(false);
733 karl 1.91 #endif
734 kumpf 1.92 } 735 else 736 {
737 dave.sudlik 1.101 #ifdef PEGASUS_ENABLE_IPV6 738 accept_address = 739 reinterpret_cast<struct sockaddr*> 740 (new struct sockaddr_storage); 741 address_size = sizeof(struct sockaddr_storage); 742 #else
743 kumpf 1.92 accept_address = 744 reinterpret_cast<struct sockaddr*>(new struct sockaddr_in); 745 address_size = sizeof(struct sockaddr_in);
746 dave.sudlik 1.101 #endif
747 kumpf 1.92 } 748
749 kumpf 1.106.2.2 // It is not necessary to handle EINTR errors from this accept() call. 750 // An EINTR error should not occur on a non-blocking socket. If the 751 // listen socket is blocking and EINTR occurs, the new socket connection 752 // is not accepted here. 753 754 // EAGAIN errors are also not handled here. An EAGAIN error should not 755 // occur after select() indicates that the listen socket is available for 756 // reading. If the accept() fails with an EAGAIN error code, a new 757 // connection is not accepted here. 758 759 SocketHandle socket = accept(_rep->socket, accept_address, &address_size);
760 kumpf 1.92 761 if (socket == PEGASUS_SOCKET_ERROR) 762 { 763 // the remote connection is invalid, destroy client address. 764 delete accept_address; 765 766 // TCPIP is down reconnect this acceptor 767 if (getSocketError() == PEGASUS_NETWORK_TCPIP_STOPPED) 768 {
769 marek 1.95 PEG_TRACE_CSTRING(TRC_DISCARDED_DATA, Tracer::LEVEL2,
770 kumpf 1.92 "Socket has an IO error. TCP/IP down. Try to reconnect."); 771 772 reconnectConnectionSocket(); 773 774 return; 775 }
776 karl 1.91
777 kumpf 1.92 Logger::put(Logger::STANDARD_LOG, System::CIMSERVER, Logger::TRACE, 778 "HTTPAcceptor - accept() failure. errno: $0", errno);
779 karl 1.91
780 marek 1.95 PEG_TRACE_CSTRING(TRC_DISCARDED_DATA, Tracer::LEVEL2,
781 kumpf 1.92 "HTTPAcceptor: accept() failed"); 782 return; 783 }
784 marek 1.106.2.4 // We need to ensure that the socket number is not higher than 785 // what fits into FD_SETSIZE, because we else won't be able to select on it 786 // and won't ever communicate correct on that socket. 787 if (socket >= FD_SETSIZE) 788 { 789 // the remote connection is invalid, destroy client address. 790 delete accept_address; 791 792 Logger::put(Logger::STANDARD_LOG, System::CIMSERVER, Logger::TRACE, 793 "HTTPAcceptor out of available sockets. " 794 "Closing connection to the new client."); 795 796 PEG_TRACE( 797 (TRC_DISCARDED_DATA, 798 Tracer::LEVEL2, 799 "accept() returned too large socket number %d.", 800 socket)); 801 802 // close the connection 803 Socket::close(socket); 804 return; 805 marek 1.106.2.4 }
806 sushma.fernandes 1.106.2.6
807 karl 1.91
808 kumpf 1.92 String ipAddress;
809 karl 1.91
810 dave.sudlik 1.101 if (_connectionType == LOCAL_CONNECTION)
811 kumpf 1.92 { 812 ipAddress = "localhost"; 813 } 814 else 815 {
816 dave.sudlik 1.101 #ifdef PEGASUS_ENABLE_IPV6 817 char ipBuffer[PEGASUS_INET6_ADDRSTR_LEN];
818 dmitry.mikulin 1.105 int rc;
819 dmitry.mikulin 1.106 if ((rc = System::getNameInfo(accept_address, 820 address_size, 821 ipBuffer, 822 PEGASUS_INET6_ADDRSTR_LEN, 823 0, 824 0, 825 NI_NUMERICHOST)))
826 dave.sudlik 1.101 { 827 Logger::put(Logger::STANDARD_LOG, System::CIMSERVER, Logger::TRACE, 828 "HTTPAcceptor - getnameinfo() failure. rc: $0", rc); 829 830 PEG_TRACE_CSTRING(TRC_DISCARDED_DATA, Tracer::LEVEL2, 831 "HTTPAcceptor: getnameinfo() failed"); 832 delete accept_address; 833 Socket::close(socket); 834 return; 835 } 836 ipAddress = ipBuffer; 837 #else
838 kumpf 1.92 unsigned char* sa = reinterpret_cast<unsigned char>( 839 &reinterpret_cast<struct sockaddr_in>( 840 accept_address)->sin_addr.s_addr); 841 char ipBuffer[32]; 842 sprintf(ipBuffer, "%u.%u.%u.%u", sa[0], sa[1], sa[2], sa[3]); 843 ipAddress = ipBuffer;
844 dave.sudlik 1.101 #endif
845 kumpf 1.92 }
846 karl 1.91
847 kumpf 1.92 delete accept_address;
848 karl 1.91 849 // set the close on exec flag 850 #if !defined(PEGASUS_OS_TYPE_WINDOWS) && !defined(PEGASUS_OS_VMS)
851 kumpf 1.92 int sock_flags; 852 if ((sock_flags = fcntl(socket, F_GETFD, 0)) < 0) 853 {
854 marek 1.95 PEG_TRACE_CSTRING(TRC_DISCARDED_DATA, Tracer::LEVEL2,
855 kumpf 1.92 "HTTPAcceptor: fcntl(F_GETFD) failed"); 856 } 857 else 858 { 859 sock_flags \|= FD_CLOEXEC; 860 if (fcntl(socket, F_SETFD, sock_flags) < 0) 861 {
862 marek 1.95 PEG_TRACE_CSTRING(TRC_DISCARDED_DATA, Tracer::LEVEL2,
863 kumpf 1.92 "HTTPAcceptor: fcntl(F_SETFD) failed"); 864 } 865 }
866 karl 1.91 #endif 867 868
869 kumpf 1.92 PEG_LOGGER_TRACE((Logger::STANDARD_LOG, System::CIMSERVER, 0, 870 "HTTPAcceptor - accept() success. Socket: $1" ,socket)); 871
872 kumpf 1.96 SharedPtr<MP_Socket> mp_socket(new MP_Socket(
873 sushma.fernandes 1.97 socket, _sslcontext, _sslContextObjectLock, ipAddress));
874 kumpf 1.92
875 kumpf 1.106.2.2 mp_socket->disableBlocking();
876 kumpf 1.92 mp_socket->setSocketWriteTimeout(_socketWriteTimeout); 877
878 kumpf 1.106.2.2 // Perform the SSL handshake, if applicable.
879 kumpf 1.92 880 Sint32 socketAcceptStatus = mp_socket->accept(); 881 882 if (socketAcceptStatus < 0) 883 {
884 marek 1.95 PEG_TRACE_CSTRING(TRC_DISCARDED_DATA, Tracer::LEVEL2,
885 kumpf 1.92 "HTTPAcceptor: SSL_accept() failed"); 886 mp_socket->close(); 887 return; 888 } 889 890 // Create a new connection and add it to the connection list: 891 892 HTTPConnection* connection = new HTTPConnection(_monitor, mp_socket, 893 ipAddress, this, static_cast<MessageQueue *>(_outputMessageQueue)); 894
895 dave.sudlik 1.106.2.1 if (_idleConnectionTimeoutSeconds) 896 { 897 connection->_idleConnectionTimeoutSeconds = 898 _idleConnectionTimeoutSeconds; 899 Time::gettimeofday(&connection->_idleStartTime); 900 } 901
902 kumpf 1.92 if (socketAcceptStatus == 0) 903 {
904 marek 1.95 PEG_TRACE_CSTRING(TRC_HTTP, Tracer::LEVEL2,
905 kumpf 1.92 "HTTPAcceptor: SSL_accept() pending"); 906 connection->_acceptPending = true;
907 dave.sudlik 1.106.2.1 Time::gettimeofday(&connection->_acceptPendingStartTime);
908 kumpf 1.92 }
909 karl 1.91
910 kumpf 1.92 // Solicit events on this new connection's socket: 911 int index;
912 karl 1.91
913 kumpf 1.92 if (-1 == (index = _monitor->solicitSocketMessages( 914 connection->getSocket(), 915 SocketMessage::READ \| SocketMessage::EXCEPTION, 916 connection->getQueueId(), Monitor::CONNECTION)) ) 917 { 918 // ATTN-DE-P2-2003100503::TODO::Need to enhance code to return 919 // an error message to Client application.
920 marek 1.95 PEG_TRACE_CSTRING(TRC_DISCARDED_DATA, Tracer::LEVEL2,
921 kumpf 1.92 "HTTPAcceptor::_acceptConnection: Attempt to allocate entry in " 922 "_entries table failed."); 923 delete connection; 924 Socket::close(socket); 925 return; 926 }
927 karl 1.91
928 kumpf 1.92 // Save the socket for cleanup later: 929 connection->_entry_index = index; 930 AutoMutex autoMut(_rep->_connection_mut); 931 _rep->connections.append(connection);
932 karl 1.91 } 933
934 kumpf 1.92 PEGASUS_NAMESPACE_END

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