1 mike 1.2 //%/////////////////////////////////////////////////////////////////////////////
2 //
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3 kumpf 1.20 // Copyright (c) 2000, 2001, 2002 BMC Software, Hewlett-Packard Company, IBM,
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4 mike 1.2 // The Open Group, Tivoli Systems
5 //
6 // Permission is hereby granted, free of charge, to any person obtaining a copy
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7 kumpf 1.20 // of this software and associated documentation files (the "Software"), to
8 // deal in the Software without restriction, including without limitation the
9 // rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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10 mike 1.2 // sell copies of the Software, and to permit persons to whom the Software is
11 // furnished to do so, subject to the following conditions:
12 //
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13 kumpf 1.20 // THE ABOVE COPYRIGHT NOTICE AND THIS PERMISSION NOTICE SHALL BE INCLUDED IN
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14 mike 1.2 // ALL COPIES OR SUBSTANTIAL PORTIONS OF THE SOFTWARE. THE SOFTWARE IS PROVIDED
15 // "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT
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16 kumpf 1.20 // LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
17 // PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
18 // HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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19 mike 1.2 // ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
20 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
21 //
22 //==============================================================================
23 //
24 // Author: Mike Brasher (mbrasher@bmc.com)
25 //
26 // Modified By:
27 // Jenny Yu, Hewlett-Packard Company (jenny_yu@hp.com)
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28 kumpf 1.6 // Nag Boranna, Hewlett-Packard Company (nagaraja_boranna@hp.com)
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29 mike 1.2 //
30 //%/////////////////////////////////////////////////////////////////////////////
31
32 #include "Config.h"
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33 kumpf 1.15 #include "Constants.h"
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34 mike 1.2 #include <iostream>
35 #include "Socket.h"
36
37 #ifdef PEGASUS_PLATFORM_WIN32_IX86_MSVC
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38 mday 1.12 #include <windows.h>
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39 mike 1.2 #else
40 # include <cctype>
41 # include <unistd.h>
42 # include <cstdlib>
43 # include <errno.h>
44 # include <fcntl.h>
45 # include <netdb.h>
46 # include <netinet/in.h>
47 # include <arpa/inet.h>
48 # include <sys/socket.h>
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49 kumpf 1.11 # ifdef PEGASUS_LOCAL_DOMAIN_SOCKET
50 # include <sys/un.h>
51 # endif
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52 mike 1.2 #endif
53
54 #include "Socket.h"
55 #include "TLS.h"
56 #include "HTTPAcceptor.h"
57 #include "HTTPConnection.h"
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58 kumpf 1.19 #include "Tracer.h"
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59 mike 1.2
60 PEGASUS_USING_STD;
61
62 PEGASUS_NAMESPACE_BEGIN
63
64 ////////////////////////////////////////////////////////////////////////////////
65 //
66 // HTTPAcceptorRep
67 //
68 ////////////////////////////////////////////////////////////////////////////////
69
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70 kumpf 1.25 class HTTPAcceptorRep
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71 mike 1.2 {
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72 kumpf 1.25 public:
73 HTTPAcceptorRep(Boolean local)
74 {
75 if (local)
76 {
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77 kumpf 1.11 #ifdef PEGASUS_LOCAL_DOMAIN_SOCKET
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78 kumpf 1.25 address = reinterpret_cast<struct sockaddr*>(new struct sockaddr_un);
79 address_size = sizeof(struct sockaddr_un);
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80 kumpf 1.11 #else
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81 kumpf 1.25 PEGASUS_ASSERT(false);
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82 kumpf 1.11 #endif
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83 kumpf 1.25 }
84 else
85 {
86 address = reinterpret_cast<struct sockaddr*>(new struct sockaddr_in);
87 address_size = sizeof(struct sockaddr_in);
88 }
89 }
90
91 struct sockaddr* address;
92
93 #if defined(PEGASUS_PLATFORM_ZOS_ZSERIES_IBM)
94 size_t address_size;
95 #elif defined(PEGASUS_PLATFORM_AIX_RS_IBMCXX) || defined(PEGASUS_PLATFORM_LINUX_IX86_GNU) || defined(PEGASUS_PLATFORM_LINUX_GENERIC_GNU)
96 socklen_t address_size;
97 #else
98 int address_size;
99 #endif
100
101 Sint32 socket;
102 Array<HTTPConnection*> connections;
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103 mike 1.2 };
104
105 ////////////////////////////////////////////////////////////////////////////////
106 //
107 // HTTPAcceptor
108 //
109 ////////////////////////////////////////////////////////////////////////////////
110
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111 kumpf 1.25 HTTPAcceptor::HTTPAcceptor(Monitor* monitor,
112 MessageQueue* outputMessageQueue,
113 Boolean localConnection,
114 Uint32 portNumber,
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115 mike 1.2 SSLContext * sslcontext)
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116 kumpf 1.25 : Base(PEGASUS_QUEUENAME_HTTPACCEPTOR), // ATTN: Need unique names?
117 _monitor(monitor),
118 _outputMessageQueue(outputMessageQueue),
119 _rep(0),
120 _entry_index(-1),
121 _localConnection(localConnection),
122 _portNumber(portNumber),
123 _sslcontext(sslcontext)
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124 mike 1.2 {
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125 mday 1.7 Socket::initializeInterface();
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126 mike 1.2 }
127
128 HTTPAcceptor::~HTTPAcceptor()
129 {
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130 mday 1.7 unbind();
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131 kumpf 1.25 // ATTN: Is this correct in a multi-HTTPAcceptor server?
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132 mday 1.7 Socket::uninitializeInterface();
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133 mike 1.2 }
134
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135 mday 1.7 void HTTPAcceptor::handleEnqueue(Message *message)
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136 mike 1.2 {
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137 mday 1.7 if (! message)
138 return;
139
140 switch (message->getType())
141 {
142 case SOCKET_MESSAGE:
143 {
144 SocketMessage* socketMessage = (SocketMessage*)message;
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145 mday 1.16
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146 mday 1.7 // If this is a connection request:
147
148 if (socketMessage->socket == _rep->socket &&
149 socketMessage->events | SocketMessage::READ)
150 {
151 _acceptConnection();
152 }
153 else
154 {
155 // ATTN! this can't happen!
156 }
157
158 break;
159 }
160
161 case CLOSE_CONNECTION_MESSAGE:
162 {
163 CloseConnectionMessage* closeConnectionMessage
164 = (CloseConnectionMessage*)message;
165
166 for (Uint32 i = 0, n = _rep->connections.size(); i < n; i++)
167 mday 1.7 {
168 HTTPConnection* connection = _rep->connections[i];
169 Sint32 socket = connection->getSocket();
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170 mike 1.2
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171 mday 1.7 if (socket == closeConnectionMessage->socket)
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172 mike 1.2 {
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173 mday 1.7 _monitor->unsolicitSocketMessages(socket);
174 _rep->connections.remove(i);
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175 kumpf 1.17 delete connection;
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176 mday 1.7 break;
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177 mike 1.2 }
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178 mday 1.7 }
179 }
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180 mike 1.2
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181 kumpf 1.10 default:
182 // ATTN: need unexpected message error!
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183 mday 1.7 break;
184 };
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185 mike 1.2
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186 mday 1.7 delete message;
187 }
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188 mike 1.2
189
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190 mday 1.7 void HTTPAcceptor::handleEnqueue()
191 {
192 Message* message = dequeue();
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193 mike 1.2
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194 mday 1.7 if (!message)
195 return;
196
197 handleEnqueue(message);
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198 mike 1.2
199 }
200
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201 kumpf 1.25 void HTTPAcceptor::bind()
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202 mike 1.2 {
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203 mday 1.7 if (_rep)
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204 kumpf 1.23 throw BindFailedException("HTTPAcceptor already bound");
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205 mike 1.2
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206 kumpf 1.25 _rep = new HTTPAcceptorRep(_localConnection);
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207 mike 1.2
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208 mday 1.7 // bind address
209 _bind();
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210 mike 1.2
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211 mday 1.7 return;
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212 mike 1.2 }
213
214 /**
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215 mday 1.7 _bind - creates a new server socket and bind socket to the port address.
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216 kumpf 1.11 If PEGASUS_LOCAL_DOMAIN_SOCKET is defined, the port number is ignored and
217 a domain socket is bound.
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218 mike 1.2 */
219 void HTTPAcceptor::_bind()
220 {
221
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222 mday 1.7 // Create address:
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223 mike 1.2
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224 kumpf 1.25 memset(_rep->address, 0, sizeof(*_rep->address));
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225 kumpf 1.6
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226 kumpf 1.25 if (_localConnection)
227 {
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228 kumpf 1.11 #ifdef PEGASUS_LOCAL_DOMAIN_SOCKET
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229 kumpf 1.25 reinterpret_cast<struct sockaddr_un*>(_rep->address)->sun_family =
230 AF_UNIX;
231 strcpy(reinterpret_cast<struct sockaddr_un*>(_rep->address)->sun_path,
232 PEGASUS_LOCAL_DOMAIN_SOCKET_PATH);
233 ::unlink(reinterpret_cast<struct sockaddr_un*>(_rep->address)->sun_path);
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234 kumpf 1.6 #else
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235 kumpf 1.25 PEGASUS_ASSERT(false);
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236 kumpf 1.11 #endif
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237 kumpf 1.25 }
238 else
239 {
240 reinterpret_cast<struct sockaddr_in*>(_rep->address)->sin_addr.s_addr =
241 INADDR_ANY;
242 reinterpret_cast<struct sockaddr_in*>(_rep->address)->sin_family =
243 AF_INET;
244 reinterpret_cast<struct sockaddr_in*>(_rep->address)->sin_port =
245 htons(_portNumber);
246 }
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247 mike 1.2
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248 mday 1.7 // Create socket:
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249 mike 1.2
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250 kumpf 1.25 if (_localConnection)
251 {
252 _rep->socket = socket(AF_UNIX, SOCK_STREAM, 0);
253 }
254 else
255 {
256 _rep->socket = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP);
257 }
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258 mike 1.2
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259 mday 1.7 if (_rep->socket < 0)
260 {
261 delete _rep;
262 _rep = 0;
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263 kumpf 1.23 throw BindFailedException("Failed to create socket");
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264 mday 1.7 }
265
266 //
267 // Set the socket option SO_REUSEADDR to reuse the socket address so
268 // that we can rebind to a new socket using the same address when we
269 // need to resume the cimom as a result of a timeout during a Shutdown
270 // operation.
271 //
272 int opt=1;
273 if (setsockopt(_rep->socket, SOL_SOCKET, SO_REUSEADDR,
274 (char *)&opt, sizeof(opt)) < 0)
275 {
276 delete _rep;
277 _rep = 0;
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278 kumpf 1.23 throw BindFailedException("Failed to set socket option");
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279 mday 1.7 }
280
281 // Bind socket to port:
282
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283 kumpf 1.25 if (::bind(_rep->socket, _rep->address, _rep->address_size) < 0)
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284 mday 1.7 {
285 Socket::close(_rep->socket);
286 delete _rep;
287 _rep = 0;
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288 kumpf 1.23 throw BindFailedException("Failed to bind socket");
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289 mday 1.7 }
290
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291 kumpf 1.11 // Set up listening on the given socket:
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292 mday 1.7
293 int const MAX_CONNECTION_QUEUE_LENGTH = 5;
294
295 if (listen(_rep->socket, MAX_CONNECTION_QUEUE_LENGTH) < 0)
296 {
297 Socket::close(_rep->socket);
298 delete _rep;
299 _rep = 0;
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300 kumpf 1.23 throw BindFailedException("Failed to bind socket");
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301 mday 1.7 }
302
303 // Register to receive SocketMessages on this socket:
304
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305 mday 1.21 if ( -1 == ( _entry_index = _monitor->solicitSocketMessages(
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306 mday 1.7 _rep->socket,
307 SocketMessage::READ | SocketMessage::EXCEPTION,
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308 mday 1.16 getQueueId(),
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309 mday 1.21 Monitor::ACCEPTOR)))
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310 mday 1.7 {
311 Socket::close(_rep->socket);
312 delete _rep;
313 _rep = 0;
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314 kumpf 1.23 throw BindFailedException("Failed to solicit socket messaeges");
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315 mday 1.7 }
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316 mike 1.2 }
317
318 /**
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319 mday 1.7 closeConnectionSocket - close the server listening socket to disallow
320 new client connections.
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321 mike 1.2 */
322 void HTTPAcceptor::closeConnectionSocket()
323 {
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324 mday 1.7 if (_rep)
325 {
326 // unregister the socket
327 _monitor->unsolicitSocketMessages(_rep->socket);
328
329 // close the socket
330 Socket::close(_rep->socket);
331 }
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332 mike 1.2 }
333
334 /**
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335 mday 1.7 reopenConnectionSocket - creates a new server socket.
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336 mike 1.2 */
337 void HTTPAcceptor::reopenConnectionSocket()
338 {
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339 mday 1.7 if (_rep)
340 {
341 _bind();
342 }
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343 mike 1.2 }
344
345 /**
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346 mday 1.7 getOutstandingRequestCount - returns the number of outstanding requests.
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347 mike 1.2 */
348 Uint32 HTTPAcceptor::getOutstandingRequestCount()
349 {
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350 mday 1.7 if (_rep->connections.size() > 0)
351 {
352 HTTPConnection* connection = _rep->connections[0];
353 return(connection->getRequestCount());
354 }
355 else
356 {
357 return(0);
358 }
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359 mike 1.2 }
360
361 void HTTPAcceptor::unbind()
362 {
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363 mday 1.7 if (_rep)
364 {
365 Socket::close(_rep->socket);
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366 kumpf 1.25
367 if (_localConnection)
368 {
369 #ifdef PEGASUS_LOCAL_DOMAIN_SOCKET
370 ::unlink(
371 reinterpret_cast<struct sockaddr_un*>(_rep->address)->sun_path);
372 #else
373 PEGASUS_ASSERT(false);
374 #endif
375 }
376
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377 mday 1.7 delete _rep;
378 _rep = 0;
379 }
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380 mike 1.2 }
381
382 void HTTPAcceptor::destroyConnections()
383 {
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384 mday 1.7 // For each connection created by this object:
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385 mike 1.2
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386 mday 1.7 for (Uint32 i = 0, n = _rep->connections.size(); i < n; i++)
387 {
388 HTTPConnection* connection = _rep->connections[i];
389 Sint32 socket = connection->getSocket();
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390 mike 1.2
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391 mday 1.7 // Unsolicit SocketMessages:
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392 mike 1.2
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393 mday 1.7 _monitor->unsolicitSocketMessages(socket);
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394 mike 1.2
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395 mday 1.7 // Destroy the connection (causing it to close):
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396 mike 1.2
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397 kumpf 1.17 while (connection->refcount.value()) { }
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398 mday 1.7 delete connection;
399 }
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400 mike 1.2
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401 mday 1.7 _rep->connections.clear();
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402 mike 1.2 }
403
404 void HTTPAcceptor::_acceptConnection()
405 {
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406 mday 1.7 // This function cannot be called on an invalid socket!
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407 mike 1.2
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408 mday 1.7 PEGASUS_ASSERT(_rep != 0);
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409 mike 1.2
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410 mday 1.7 if (!_rep)
411 return;
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412 mike 1.2
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413 mday 1.7 // Accept the connection (populate the address):
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414 mike 1.2
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415 kumpf 1.25 struct sockaddr* accept_address;
416 #if defined(PEGASUS_PLATFORM_ZOS_ZSERIES_IBM)
417 size_t address_size;
418 #elif defined(PEGASUS_PLATFORM_AIX_RS_IBMCXX) || defined(PEGASUS_PLATFORM_LINUX_IX86_GNU) || defined(PEGASUS_PLATFORM_LINUX_GENERIC_GNU)
419 socklen_t address_size;
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420 mike 1.2 #else
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421 kumpf 1.25 int address_size;
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422 mike 1.2 #endif
423
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424 kumpf 1.25 if (_localConnection)
425 {
426 #ifdef PEGASUS_LOCAL_DOMAIN_SOCKET
427 accept_address = reinterpret_cast<struct sockaddr*>(new struct sockaddr_un);
428 address_size = sizeof(struct sockaddr_un);
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429 mike 1.2 #else
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430 kumpf 1.25 PEGASUS_ASSERT(false);
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431 mike 1.2 #endif
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432 kumpf 1.25 }
433 else
434 {
435 accept_address = reinterpret_cast<struct sockaddr*>(new struct sockaddr_in);
436 address_size = sizeof(struct sockaddr_in);
437 }
438
439 Sint32 socket = accept(_rep->socket, accept_address, &address_size);
440
441 delete accept_address;
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442 mike 1.2
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443 mday 1.7 if (socket < 0)
444 {
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445 kumpf 1.19 PEG_TRACE_STRING(TRC_HTTP, Tracer::LEVEL2,
446 "HTTPAcceptor: accept() failed");
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447 mday 1.7 return;
448 }
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449 mike 1.2
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450 mday 1.7 // Create a new conection and add it to the connection list:
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451 mike 1.2
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452 mday 1.7 MP_Socket * mp_socket = new MP_Socket(socket, _sslcontext);
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453 kumpf 1.19 if (mp_socket->accept() < 0)
454 {
455 PEG_TRACE_STRING(TRC_HTTP, Tracer::LEVEL2,
456 "HTTPAcceptor: SSL_accept() failed");
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457 mday 1.7 return;
458 }
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459 mike 1.2
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460 mday 1.7 HTTPConnection* connection = new HTTPConnection(
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461 mday 1.16 _monitor, mp_socket, this, static_cast<MessageQueue *>(_outputMessageQueue));
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462 mike 1.2
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463 mday 1.7 // Solicit events on this new connection's socket:
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464 mday 1.21 int index;
465
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466 mday 1.22 if (-1 == (index = _monitor->solicitSocketMessages(
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467 mday 1.7 socket,
468 SocketMessage::READ | SocketMessage::EXCEPTION,
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469 mday 1.21 connection->getQueueId(), Monitor::CONNECTION)) )
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470 mday 1.7 {
471 delete connection;
472 Socket::close(socket);
473 }
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474 mike 1.2
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475 mday 1.7 // Save the socket for cleanup later:
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476 mday 1.21 connection->_entry_index = index;
477
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478 mday 1.7 _rep->connections.append(connection);
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479 mike 1.2 }
480
481 PEGASUS_NAMESPACE_END
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Return to
HTTPAcceptor.cpp
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