1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
|
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html><head><meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1">
<title>InspIRCd: servers.cpp Source File</title>
<link href="inspircd.doxygen.css" rel="stylesheet" type="text/css">
</head><body>
<!-- Generated by Doxygen 1.3.3 -->
<div class="qindex"><a class="qindex" href="main.html">Main Page</a> | <a class="qindex" href="namespaces.html">Namespace List</a> | <a class="qindex" href="hierarchy.html">Class Hierarchy</a> | <a class="qindex" href="classes.html">Alphabetical List</a> | <a class="qindex" href="annotated.html">Compound List</a> | <a class="qindex" href="files.html">File List</a> | <a class="qindex" href="namespacemembers.html">Namespace Members</a> | <a class="qindex" href="functions.html">Compound Members</a> | <a class="qindex" href="globals.html">File Members</a></div>
<h1>servers.cpp</h1><a href="servers_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001 <span class="comment">/* +------------------------------------+</span>
00002 <span class="comment"> * | Inspire Internet Relay Chat Daemon |</span>
00003 <span class="comment"> * +------------------------------------+</span>
00004 <span class="comment"> *</span>
00005 <span class="comment"> * Inspire is copyright (C) 2002-2004 ChatSpike-Dev.</span>
00006 <span class="comment"> * E-mail:</span>
00007 <span class="comment"> * <brain@chatspike.net></span>
00008 <span class="comment"> * <Craig@chatspike.net></span>
00009 <span class="comment"> * </span>
00010 <span class="comment"> * Written by Craig Edwards, Craig McLure, and others.</span>
00011 <span class="comment"> * This program is free but copyrighted software; see</span>
00012 <span class="comment"> * the file COPYING for details.</span>
00013 <span class="comment"> *</span>
00014 <span class="comment"> * ---------------------------------------------------</span>
00015 <span class="comment"> */</span>
00016
00017 <span class="keyword">using</span> <span class="keyword">namespace </span>std;
00018
00019 <span class="preprocessor">#include "inspircd_config.h"</span>
00020 <span class="preprocessor">#include "<a class="code" href="servers_8h.html">servers.h</a>"</span>
00021 <span class="preprocessor">#include "inspircd.h"</span>
00022 <span class="preprocessor">#include <unistd.h></span>
00023 <span class="preprocessor">#include <fcntl.h></span>
00024 <span class="preprocessor">#include <poll.h></span>
00025 <span class="preprocessor">#include <sys/errno.h></span>
00026 <span class="preprocessor">#include <sys/ioctl.h></span>
00027 <span class="preprocessor">#include <sys/utsname.h></span>
00028 <span class="preprocessor">#include <vector></span>
00029 <span class="preprocessor">#include <string></span>
00030 <span class="preprocessor">#include <deque></span>
00031 <span class="preprocessor">#include <sstream></span>
00032 <span class="preprocessor">#include <map></span>
00033 <span class="preprocessor">#include "inspstring.h"</span>
00034 <span class="preprocessor">#include "helperfuncs.h"</span>
00035 <span class="preprocessor">#include "<a class="code" href="connection_8h.html">connection.h</a>"</span>
00036
<a name="l00037"></a><a class="code" href="servers_8cpp.html#a0">00037</a> <span class="keyword">extern</span> time_t <a class="code" href="channels_8cpp.html#a36">TIME</a>;
<a name="l00038"></a><a class="code" href="servers_8cpp.html#a1">00038</a> <span class="keyword">extern</span> <span class="keywordtype">int</span> <a class="code" href="servers_8cpp.html#a1">MaxConn</a>;
00039
<a name="l00040"></a><a class="code" href="servers_8cpp.html#a2">00040</a> <span class="keyword">extern</span> <a class="code" href="classserverrec.html">serverrec</a>* <a class="code" href="channels_8cpp.html#a34">me</a>[32];
00041
<a name="l00042"></a><a class="code" href="servers_8cpp.html#a3">00042</a> <span class="keyword">extern</span> <span class="keywordtype">bool</span> <a class="code" href="servers_8cpp.html#a3">has_been_netsplit</a>;
00043
<a name="l00044"></a><a class="code" href="servers_8cpp.html#a4">00044</a> std::deque<std::string> <a class="code" href="servers_8cpp.html#a4">xsums</a>;
00045
<a name="l00046"></a><a class="code" href="classserverrec.html#a0">00046</a> <a class="code" href="classserverrec.html#a0">serverrec::serverrec</a>()
00047 {
00048 strlcpy(<a class="code" href="classserverrec.html#o0">name</a>,<span class="stringliteral">""</span>,256);
00049 <a class="code" href="classserverrec.html#o1">pingtime</a> = 0;
00050 <a class="code" href="classconnection.html#o10">lastping</a> = <a class="code" href="channels_8cpp.html#a36">TIME</a>;
00051 <a class="code" href="classserverrec.html#o2">usercount_i</a> = <a class="code" href="classserverrec.html#o3">usercount</a> = <a class="code" href="classserverrec.html#o4">opercount</a> = <a class="code" href="classserverrec.html#o6">version</a> = 0;
00052 <a class="code" href="classserverrec.html#o5">hops_away</a> = 1;
00053 <a class="code" href="classconnection.html#o11">signon</a> = <a class="code" href="channels_8cpp.html#a36">TIME</a>;
00054 <a class="code" href="classserverrec.html#o7">jupiter</a> = <span class="keyword">false</span>;
00055 <a class="code" href="classconnection.html#o0">fd</a> = 0;
00056 <a class="code" href="classserverrec.html#o10">sync_soon</a> = <span class="keyword">false</span>;
00057 strlcpy(<a class="code" href="classserverrec.html#o9">nickserv</a>,<span class="stringliteral">""</span>,NICKMAX);
00058 <a class="code" href="classserverrec.html#o11">connectors</a>.clear();
00059 }
00060
00061
<a name="l00062"></a><a class="code" href="classserverrec.html#a2">00062</a> <a class="code" href="classserverrec.html#a2">serverrec::~serverrec</a>()
00063 {
00064 }
00065
<a name="l00066"></a><a class="code" href="classserverrec.html#a1">00066</a> <a class="code" href="classserverrec.html#a0">serverrec::serverrec</a>(<span class="keywordtype">char</span>* n, <span class="keywordtype">long</span> ver, <span class="keywordtype">bool</span> jupe)
00067 {
00068 strlcpy(<a class="code" href="classserverrec.html#o0">name</a>,n,256);
00069 <a class="code" href="classconnection.html#o10">lastping</a> = <a class="code" href="channels_8cpp.html#a36">TIME</a>;
00070 <a class="code" href="classserverrec.html#o2">usercount_i</a> = <a class="code" href="classserverrec.html#o3">usercount</a> = <a class="code" href="classserverrec.html#o4">opercount</a> = 0;
00071 <a class="code" href="classserverrec.html#o6">version</a> = ver;
00072 <a class="code" href="classserverrec.html#o5">hops_away</a> = 1;
00073 <a class="code" href="classconnection.html#o11">signon</a> = <a class="code" href="channels_8cpp.html#a36">TIME</a>;
00074 <a class="code" href="classserverrec.html#o7">jupiter</a> = jupe;
00075 <a class="code" href="classconnection.html#o0">fd</a> = 0;
00076 <a class="code" href="classserverrec.html#o10">sync_soon</a> = <span class="keyword">false</span>;
00077 strlcpy(<a class="code" href="classserverrec.html#o9">nickserv</a>,<span class="stringliteral">""</span>,NICKMAX);
00078 <a class="code" href="classserverrec.html#o11">connectors</a>.clear();
00079 }
00080
<a name="l00081"></a><a class="code" href="classserverrec.html#a3">00081</a> <span class="keywordtype">bool</span> <a class="code" href="classserverrec.html#a3">serverrec::CreateListener</a>(<span class="keywordtype">char</span>* newhost, <span class="keywordtype">int</span> p)
00082 {
00083 sockaddr_in host_address;
00084 <span class="keywordtype">int</span> flags;
00085 in_addr addy;
00086 <span class="keywordtype">int</span> on = 0;
00087 <span class="keyword">struct </span>linger linger = { 0 };
00088
00089 this-><a class="code" href="classconnection.html#o8">port</a> = p;
00090
00091 <a class="code" href="classconnection.html#o0">fd</a> = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
00092 <span class="keywordflow">if</span> (<a class="code" href="classconnection.html#o0">fd</a> <= 0)
00093 {
00094 <span class="keywordflow">return</span> <span class="keyword">false</span>;
00095 }
00096
00097 setsockopt(<a class="code" href="classconnection.html#o0">fd</a>,SOL_SOCKET,SO_REUSEADDR,(<span class="keyword">const</span> <span class="keywordtype">char</span>*)&on,<span class="keyword">sizeof</span>(on));
00098 linger.l_onoff = 1;
00099 linger.l_linger = 1;
00100 setsockopt(<a class="code" href="classconnection.html#o0">fd</a>,SOL_SOCKET,SO_LINGER,(<span class="keyword">const</span> <span class="keywordtype">char</span>*)&linger,<span class="keyword">sizeof</span>(linger));
00101
00102 <span class="comment">// attempt to increase socket sendq and recvq as high as its possible</span>
00103 <span class="comment">// to get them on linux.</span>
00104 <span class="keywordtype">int</span> sendbuf = 32768;
00105 <span class="keywordtype">int</span> recvbuf = 32768;
00106 setsockopt(<a class="code" href="classconnection.html#o0">fd</a>,SOL_SOCKET,SO_SNDBUF,(<span class="keyword">const</span> <span class="keywordtype">void</span> *)&sendbuf,<span class="keyword">sizeof</span>(sendbuf));
00107 setsockopt(<a class="code" href="classconnection.html#o0">fd</a>,SOL_SOCKET,SO_RCVBUF,(<span class="keyword">const</span> <span class="keywordtype">void</span> *)&recvbuf,<span class="keyword">sizeof</span>(sendbuf));
00108
00109 memset((<span class="keywordtype">void</span>*)&host_address, 0, <span class="keyword">sizeof</span>(host_address));
00110
00111 host_address.sin_family = AF_INET;
00112
00113 <span class="keywordflow">if</span> (!strcmp(newhost,<span class="stringliteral">""</span>))
00114 {
00115 host_address.sin_addr.s_addr = htonl(INADDR_ANY);
00116 }
00117 <span class="keywordflow">else</span>
00118 {
00119 inet_aton(newhost,&addy);
00120 host_address.sin_addr = addy;
00121 }
00122
00123 host_address.sin_port = htons(p);
00124
00125 <span class="keywordflow">if</span> (bind(<a class="code" href="classconnection.html#o0">fd</a>,(sockaddr*)&host_address,<span class="keyword">sizeof</span>(host_address))<0)
00126 {
00127 <span class="keywordflow">return</span> <span class="keyword">false</span>;
00128 }
00129
00130 <span class="comment">// make the socket non-blocking</span>
00131 flags = fcntl(<a class="code" href="classconnection.html#o0">fd</a>, F_GETFL, 0);
00132 fcntl(<a class="code" href="classconnection.html#o0">fd</a>, F_SETFL, flags | O_NONBLOCK);
00133
00134 this-><a class="code" href="classconnection.html#o8">port</a> = p;
00135
00136 listen(this->fd, <a class="code" href="servers_8cpp.html#a1">MaxConn</a>);
00137
00138 <span class="keywordflow">return</span> <span class="keyword">true</span>;
00139 }
00140
00141
<a name="l00142"></a><a class="code" href="classserverrec.html#a4">00142</a> <span class="keywordtype">bool</span> <a class="code" href="classserverrec.html#a4">serverrec::BeginLink</a>(<span class="keywordtype">char</span>* targethost, <span class="keywordtype">int</span> newport, <span class="keywordtype">char</span>* password, <span class="keywordtype">char</span>* servername, <span class="keywordtype">int</span> myport)
00143 {
00144 <span class="keywordtype">char</span> connect[MAXBUF];
00145
00146 <a class="code" href="classircd__connector.html">ircd_connector</a> connector;
00147 <a class="code" href="classircd__connector.html">ircd_connector</a> *cn = this-><a class="code" href="classserverrec.html#a9">FindHost</a>(servername);
00148
00149
00150 <span class="keywordflow">if</span> (cn)
00151 {
00152 WriteOpers(<span class="stringliteral">"CONNECT aborted: Server %s already exists"</span>,servername);
00153 <span class="keywordflow">return</span> <span class="keyword">false</span>;
00154 }
00155
00156
00157 <span class="keywordflow">if</span> (this-><a class="code" href="classconnection.html#o0">fd</a>)
00158 {
00159 <span class="keywordflow">if</span> (connector.<a class="code" href="classircd__connector.html#a1">MakeOutboundConnection</a>(targethost,newport))
00160 {
00161 <span class="comment">// targethost has been turned into an ip...</span>
00162 <span class="comment">// we dont want this as the server name.</span>
00163 connector.<a class="code" href="classircd__connector.html#a3">SetServerName</a>(servername);
00164 snprintf(connect,MAXBUF,<span class="stringliteral">"S %s %s %lu %s :%s"</span>,getservername().c_str(),password,(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span>)myport,GetRevision().c_str(),getserverdesc().c_str());
00165 connector.<a class="code" href="classircd__connector.html#a7">SetState</a>(<a class="code" href="connection_8h.html#a4">STATE_NOAUTH_OUTBOUND</a>);
00166 connector.<a class="code" href="classircd__connector.html#a13">SetHostAndPort</a>(targethost, newport);
00167 this-><a class="code" href="classserverrec.html#o11">connectors</a>.push_back(connector);
00168 <span class="comment">// this packet isn't actually sent until the socket connects -- the STATE_NOAUTH_OUTBOUND state</span>
00169 <span class="comment">// queues outbound data until the socket is polled as writeable (e.g. the connection is established)</span>
00170 <span class="keywordflow">return</span> this-><a class="code" href="classserverrec.html#a7">SendPacket</a>(connect, servername);
00171 }
00172 <span class="keywordflow">else</span>
00173 {
00174 connector.<a class="code" href="classircd__connector.html#a7">SetState</a>(<a class="code" href="connection_8h.html#a0">STATE_DISCONNECTED</a>);
00175 WriteOpers(<span class="stringliteral">"Could not create outbound connection to %s:%d"</span>,targethost,newport);
00176 }
00177 }
00178 <span class="keywordflow">return</span> <span class="keyword">false</span>;
00179 }
00180
00181
<a name="l00182"></a><a class="code" href="classserverrec.html#a5">00182</a> <span class="keywordtype">bool</span> <a class="code" href="classserverrec.html#a5">serverrec::MeshCookie</a>(<span class="keywordtype">char</span>* targethost, <span class="keywordtype">int</span> newport, <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> cookie, <span class="keywordtype">char</span>* servername)
00183 {
00184 <span class="keywordtype">char</span> connect[MAXBUF];
00185
00186 <a class="code" href="classircd__connector.html">ircd_connector</a> connector;
00187
00188 WriteOpers(<span class="stringliteral">"Establishing meshed link to %s:%d"</span>,servername,newport);
00189
00190 <span class="keywordflow">if</span> (this-><a class="code" href="classconnection.html#o0">fd</a>)
00191 {
00192 <span class="keywordflow">if</span> (connector.<a class="code" href="classircd__connector.html#a1">MakeOutboundConnection</a>(targethost,newport))
00193 {
00194 <span class="comment">// targethost has been turned into an ip...</span>
00195 <span class="comment">// we dont want this as the server name.</span>
00196 connector.<a class="code" href="classircd__connector.html#a3">SetServerName</a>(servername);
00197 snprintf(connect,MAXBUF,<span class="stringliteral">"- %lu %s :%s"</span>,cookie,getservername().c_str(),getserverdesc().c_str());
00198 connector.<a class="code" href="classircd__connector.html#a7">SetState</a>(<a class="code" href="connection_8h.html#a4">STATE_NOAUTH_OUTBOUND</a>);
00199 connector.<a class="code" href="classircd__connector.html#a13">SetHostAndPort</a>(targethost, newport);
00200 this-><a class="code" href="classserverrec.html#o11">connectors</a>.push_back(connector);
00201 <span class="keywordflow">return</span> this-><a class="code" href="classserverrec.html#a7">SendPacket</a>(connect, servername);
00202 }
00203 <span class="keywordflow">else</span>
00204 {
00205 connector.<a class="code" href="classircd__connector.html#a7">SetState</a>(<a class="code" href="connection_8h.html#a0">STATE_DISCONNECTED</a>);
00206 WriteOpers(<span class="stringliteral">"Could not create outbound connection to %s:%d"</span>,targethost,newport);
00207 }
00208 }
00209 <span class="keywordflow">return</span> <span class="keyword">false</span>;
00210 }
00211
<a name="l00212"></a><a class="code" href="classserverrec.html#a10">00212</a> <span class="keywordtype">bool</span> <a class="code" href="classserverrec.html#a10">serverrec::AddIncoming</a>(<span class="keywordtype">int</span> newfd, <span class="keywordtype">char</span>* targethost, <span class="keywordtype">int</span> sourceport)
00213 {
00214 <a class="code" href="classircd__connector.html">ircd_connector</a> connector;
00215
00216 <span class="comment">// targethost has been turned into an ip...</span>
00217 <span class="comment">// we dont want this as the server name.</span>
00218 connector.<a class="code" href="classircd__connector.html#a3">SetServerName</a>(targethost);
00219 connector.<a class="code" href="classircd__connector.html#a5">SetDescriptor</a>(newfd);
00220 connector.<a class="code" href="classircd__connector.html#a7">SetState</a>(<a class="code" href="connection_8h.html#a3">STATE_NOAUTH_INBOUND</a>);
00221 <span class="keywordtype">int</span> flags = fcntl(newfd, F_GETFL, 0);
00222 fcntl(newfd, F_SETFL, flags | O_NONBLOCK);
00223 <span class="keywordtype">int</span> sendbuf = 32768;
00224 <span class="keywordtype">int</span> recvbuf = 32768;
00225 setsockopt(newfd,SOL_SOCKET,SO_SNDBUF,(<span class="keyword">const</span> <span class="keywordtype">void</span> *)&sendbuf,<span class="keyword">sizeof</span>(sendbuf));
00226 setsockopt(newfd,SOL_SOCKET,SO_RCVBUF,(<span class="keyword">const</span> <span class="keywordtype">void</span> *)&recvbuf,<span class="keyword">sizeof</span>(sendbuf));
00227 connector.<a class="code" href="classircd__connector.html#a13">SetHostAndPort</a>(targethost, sourceport);
00228 connector.<a class="code" href="classircd__connector.html#a7">SetState</a>(<a class="code" href="connection_8h.html#a3">STATE_NOAUTH_INBOUND</a>);
00229 log(<a class="code" href="modules_8h.html#a0">DEBUG</a>,<span class="stringliteral">"serverrec::AddIncoming() Added connection: %s:%d"</span>,targethost,sourceport);
00230 this-><a class="code" href="classserverrec.html#o11">connectors</a>.push_back(connector);
00231 <span class="keywordflow">return</span> <span class="keyword">true</span>;
00232 }
00233
<a name="l00234"></a><a class="code" href="classserverrec.html#a6">00234</a> <span class="keywordtype">void</span> <a class="code" href="classserverrec.html#a6">serverrec::TerminateLink</a>(<span class="keywordtype">char</span>* targethost)
00235 {
00236 <span class="comment">// this locates the targethost in the serverrec::connectors vector of the class,</span>
00237 <span class="comment">// and terminates it by sending it an SQUIT token and closing its descriptor.</span>
00238 <span class="comment">// TerminateLink with a null string causes a terminate of ALL links</span>
00239 }
00240
00241 <span class="comment">// Returns a pointer to the connector for 'host'</span>
<a name="l00242"></a><a class="code" href="classserverrec.html#a9">00242</a> <a class="code" href="classircd__connector.html">ircd_connector</a>* <a class="code" href="classserverrec.html#a9">serverrec::FindHost</a>(std::string findhost)
00243 {
00244 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < this-><a class="code" href="classserverrec.html#o11">connectors</a>.size(); i++)
00245 {
00246 <span class="keywordflow">if</span> (this-><a class="code" href="classserverrec.html#o11">connectors</a>[i].GetServerName() == findhost)
00247 {
00248 <span class="keywordflow">return</span> &this-><a class="code" href="classserverrec.html#o11">connectors</a>[i];
00249 }
00250 }
00251 <span class="keywordflow">return</span> NULL;
00252 }
00253
00254
00255 <span class="comment">// Checks to see if we can still reach a server at all (e.g. is it in ANY routing table?)</span>
<a name="l00256"></a><a class="code" href="servers_8cpp.html#a5">00256</a> <span class="keywordtype">bool</span> <a class="code" href="servers_8cpp.html#a5">IsRoutable</a>(std::string servername)
00257 {
00258 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> x = 0; x < 32; x++) <span class="keywordflow">if</span> (<a class="code" href="channels_8cpp.html#a34">me</a>[x])
00259 {
00260 <a class="code" href="classircd__connector.html">ircd_connector</a>* cn = <a class="code" href="channels_8cpp.html#a34">me</a>[x]-><a class="code" href="classserverrec.html#a9">FindHost</a>(servername.c_str());
00261 <span class="keywordflow">if</span> (cn)
00262 {
00263 <span class="keywordflow">if</span> (cn-><a class="code" href="classircd__connector.html#a6">GetState</a>() == <a class="code" href="connection_8h.html#a0">STATE_DISCONNECTED</a>)
00264 {
00265 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> k = 0; k < <a class="code" href="channels_8cpp.html#a34">me</a>[x]-><a class="code" href="classserverrec.html#o11">connectors</a>.size(); k++)
00266 {
00267 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> m = 0; m < <a class="code" href="channels_8cpp.html#a34">me</a>[x]-><a class="code" href="classserverrec.html#o11">connectors</a>[k].routes.size(); m++)
00268 {
00269 <span class="keywordflow">if</span> (!strcasecmp(<a class="code" href="channels_8cpp.html#a34">me</a>[x]->connectors[k].routes[m].c_str(),servername.c_str()))
00270 {
00271 <span class="keywordflow">return</span> <span class="keyword">true</span>;
00272 }
00273 }
00274 }
00275 <span class="keywordflow">return</span> <span class="keyword">false</span>;
00276 }
00277 <span class="keywordflow">else</span> <span class="keywordflow">return</span> <span class="keyword">true</span>;
00278 }
00279 }
00280 <span class="keywordflow">return</span> <span class="keyword">false</span>;
00281 }
00282
00283
<a name="l00284"></a><a class="code" href="classserverrec.html#a11">00284</a> <span class="keywordtype">void</span> <a class="code" href="classserverrec.html#a11">serverrec::FlushWriteBuffers</a>()
00285 {
00286 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < this-><a class="code" href="classserverrec.html#o11">connectors</a>.size(); i++)
00287 {
00288 <span class="comment">// don't try and ping a NOAUTH_OUTBOUND state, its not authed yet!</span>
00289 <span class="keywordflow">if</span> ((this-><a class="code" href="classserverrec.html#o11">connectors</a>[i].GetState() == <a class="code" href="connection_8h.html#a4">STATE_NOAUTH_OUTBOUND</a>) && (<a class="code" href="channels_8cpp.html#a36">TIME</a> > this-><a class="code" href="classserverrec.html#o11">connectors</a>[i].age+30))
00290 {
00291 <span class="comment">// however if we reach this timer its connected timed out :)</span>
00292 WriteOpers(<span class="stringliteral">"*** Connection to %s timed out"</span>,this->connectors[i].GetServerName().c_str());
00293 DoSplit(this->connectors[i].GetServerName().c_str());
00294 <span class="keywordflow">return</span>;
00295 }
00296 <span class="keywordflow">else</span> <span class="keywordflow">if</span> ((this->connectors[i].GetState() == <a class="code" href="connection_8h.html#a3">STATE_NOAUTH_INBOUND</a>) && (<a class="code" href="channels_8cpp.html#a36">TIME</a> > this->connectors[i].age+30))
00297 {
00298 WriteOpers(<span class="stringliteral">"*** Connection from %s timed out"</span>,this->connectors[i].GetServerName().c_str());
00299 DoSplit(this->connectors[i].GetServerName().c_str());
00300 <span class="keywordflow">return</span>;
00301 }
00302 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (this->connectors[i].GetState() != <a class="code" href="connection_8h.html#a0">STATE_DISCONNECTED</a>)
00303 {
00304 <span class="keywordflow">if</span> (!this->connectors[i].CheckPing())
00305 {
00306 WriteOpers(<span class="stringliteral">"*** Lost single connection to %s: Ping timeout"</span>,this->connectors[i].GetServerName().c_str());
00307 this->connectors[i].CloseConnection();
00308 this->connectors[i].SetState(<a class="code" href="connection_8h.html#a0">STATE_DISCONNECTED</a>);
00309 <span class="keywordflow">if</span> (!<a class="code" href="servers_8cpp.html#a5">IsRoutable</a>(this->connectors[i].GetServerName()))
00310 {
00311 WriteOpers(<span class="stringliteral">"*** Server %s is no longer routable, disconnecting."</span>,this->connectors[i].GetServerName().c_str());
00312 DoSplit(this->connectors[i].GetServerName().c_str());
00313 }
00314 <a class="code" href="servers_8cpp.html#a3">has_been_netsplit</a> = <span class="keyword">true</span>;
00315 }
00316 }
00317 <span class="keywordflow">if</span> (this->connectors[i].HasBufferedOutput())
00318 {
00319 <span class="keywordflow">if</span> (!this->connectors[i].FlushWriteBuf())
00320 {
00321 <span class="comment">// if we're here the write() caused an error, we cannot proceed</span>
00322 WriteOpers(<span class="stringliteral">"*** Lost single connection to %s, link inactive and retrying: %s"</span>,this->connectors[i].GetServerName().c_str(),this->connectors[i].GetWriteError().c_str());
00323 this->connectors[i].CloseConnection();
00324 this->connectors[i].SetState(<a class="code" href="connection_8h.html#a0">STATE_DISCONNECTED</a>);
00325 <span class="keywordflow">if</span> (!<a class="code" href="servers_8cpp.html#a5">IsRoutable</a>(this->connectors[i].GetServerName()))
00326 {
00327 WriteOpers(<span class="stringliteral">"*** Server %s is no longer routable, disconnecting."</span>,this->connectors[i].GetServerName().c_str());
00328 DoSplit(this->connectors[i].GetServerName().c_str());
00329 }
00330 <a class="code" href="servers_8cpp.html#a3">has_been_netsplit</a> = <span class="keyword">true</span>;
00331 }
00332 }
00333 }
00334 }
00335
<a name="l00336"></a><a class="code" href="classserverrec.html#a7">00336</a> <span class="keywordtype">bool</span> <a class="code" href="classserverrec.html#a7">serverrec::SendPacket</a>(<span class="keywordtype">char</span> *message, <span class="keyword">const</span> <span class="keywordtype">char</span>* sendhost)
00337 {
00338 <span class="keywordflow">if</span> ((!message) || (!sendhost))
00339 <span class="keywordflow">return</span> <span class="keyword">true</span>;
00340
00341 <a class="code" href="classircd__connector.html">ircd_connector</a>* cn = this-><a class="code" href="classserverrec.html#a9">FindHost</a>(sendhost);
00342
00343 <span class="keywordflow">if</span> (!strchr(message,<span class="charliteral">'\n'</span>))
00344 {
00345 strlcat(message,<span class="stringliteral">"\n"</span>,MAXBUF);
00346 }
00347
00348 <span class="keywordflow">if</span> (cn)
00349 {
00350 log(<a class="code" href="modules_8h.html#a0">DEBUG</a>,<span class="stringliteral">"main: serverrec::SendPacket() sent '%s' to %s"</span>,message,cn-><a class="code" href="classircd__connector.html#a2">GetServerName</a>().c_str());
00351
00352 <span class="keywordflow">if</span> (cn-><a class="code" href="classircd__connector.html#a6">GetState</a>() == <a class="code" href="connection_8h.html#a0">STATE_DISCONNECTED</a>)
00353 {
00354 <span class="comment">// fix: can only route one hop to avoid a loop</span>
00355 <span class="keywordflow">if</span> (strncmp(message,<span class="stringliteral">"R "</span>,2))
00356 {
00357 log(<a class="code" href="modules_8h.html#a0">DEBUG</a>,<span class="stringliteral">"Not a double reroute"</span>);
00358 <span class="comment">// this route is down, we must re-route the packet through an available point in the mesh.</span>
00359 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> k = 0; k < this-><a class="code" href="classserverrec.html#o11">connectors</a>.size(); k++)
00360 {
00361 log(<a class="code" href="modules_8h.html#a0">DEBUG</a>,<span class="stringliteral">"Check connector %d: %s"</span>,k,this->connectors[k].GetServerName().c_str());
00362 <span class="comment">// search for another point in the mesh which can 'reach' where we want to go</span>
00363 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> m = 0; m < this-><a class="code" href="classserverrec.html#o11">connectors</a>[k].routes.size(); m++)
00364 {
00365 <span class="keywordflow">if</span> (!strcasecmp(this->connectors[k].routes[m].c_str(),sendhost))
00366 {
00367 log(<a class="code" href="modules_8h.html#a0">DEBUG</a>,<span class="stringliteral">"Found alternative route for packet: %s"</span>,this->connectors[k].GetServerName().c_str());
00368 <span class="keywordtype">char</span> buffer[MAXBUF];
00369 snprintf(buffer,MAXBUF,<span class="stringliteral">"R %s %s"</span>,sendhost,message);
00370 this-><a class="code" href="classserverrec.html#a7">SendPacket</a>(buffer,this->connectors[k].GetServerName().c_str());
00371 <span class="keywordflow">return</span> <span class="keyword">true</span>;
00372 }
00373 }
00374 }
00375 }
00376 <span class="keywordtype">char</span> buffer[MAXBUF];
00377 snprintf(buffer,MAXBUF,<span class="stringliteral">"& %s"</span>,sendhost);
00378 WriteOpers(<span class="stringliteral">"*** All connections to %s lost."</span>,sendhost);
00379 NetSendToAllExcept(sendhost,buffer);
00380 DoSplit(sendhost);
00381 <span class="keywordflow">return</span> <span class="keyword">false</span>;
00382 }
00383
00384 <span class="comment">// returns false if the packet could not be sent (e.g. target host down)</span>
00385 <span class="keywordflow">if</span> (!cn-><a class="code" href="classircd__connector.html#a21">AddWriteBuf</a>(message))
00386 {
00387 <span class="comment">// if we're here, there was an error pending, and the send cannot proceed</span>
00388 log(<a class="code" href="modules_8h.html#a0">DEBUG</a>,<span class="stringliteral">"cn->AddWriteBuf() failed for serverrec::SendPacket(): %s"</span>,cn-><a class="code" href="classircd__connector.html#a24">GetWriteError</a>().c_str());
00389 log(<a class="code" href="modules_8h.html#a0">DEBUG</a>,<span class="stringliteral">"Disabling connector: %s"</span>,cn-><a class="code" href="classircd__connector.html#a2">GetServerName</a>().c_str());
00390 cn-><a class="code" href="classircd__connector.html#a14">CloseConnection</a>();
00391 cn-><a class="code" href="classircd__connector.html#a7">SetState</a>(<a class="code" href="connection_8h.html#a0">STATE_DISCONNECTED</a>);
00392 WriteOpers(<span class="stringliteral">"*** Lost single connection to %s, link inactive and retrying: %s"</span>,cn-><a class="code" href="classircd__connector.html#a2">GetServerName</a>().c_str(),cn-><a class="code" href="classircd__connector.html#a24">GetWriteError</a>().c_str());
00393 <span class="comment">// retry the packet along a new route so either arrival OR failure are gauranteed (bugfix)</span>
00394 <span class="keywordflow">return</span> this-><a class="code" href="classserverrec.html#a7">SendPacket</a>(message,sendhost);
00395 }
00396 <span class="keywordflow">if</span> (!cn-><a class="code" href="classircd__connector.html#a22">FlushWriteBuf</a>())
00397 {
00398 <span class="comment">// if we're here the write() caused an error, we cannot proceed</span>
00399 log(<a class="code" href="modules_8h.html#a0">DEBUG</a>,<span class="stringliteral">"cn->FlushWriteBuf() failed for serverrec::SendPacket(): %s"</span>,cn-><a class="code" href="classircd__connector.html#a24">GetWriteError</a>().c_str());
00400 log(<a class="code" href="modules_8h.html#a0">DEBUG</a>,<span class="stringliteral">"Disabling connector: %s"</span>,cn-><a class="code" href="classircd__connector.html#a2">GetServerName</a>().c_str());
00401 cn-><a class="code" href="classircd__connector.html#a14">CloseConnection</a>();
00402 cn-><a class="code" href="classircd__connector.html#a7">SetState</a>(<a class="code" href="connection_8h.html#a0">STATE_DISCONNECTED</a>);
00403 WriteOpers(<span class="stringliteral">"*** Lost single connection to %s, link inactive and retrying: %s"</span>,cn-><a class="code" href="classircd__connector.html#a2">GetServerName</a>().c_str(),cn-><a class="code" href="classircd__connector.html#a24">GetWriteError</a>().c_str());
00404 <span class="comment">// retry the packet along a new route so either arrival OR failure are gauranteed</span>
00405 <span class="keywordflow">return</span> this-><a class="code" href="classserverrec.html#a7">SendPacket</a>(message,sendhost);
00406 }
00407 <span class="keywordflow">return</span> <span class="keyword">true</span>;
00408 }
00409 }
00410
<a name="l00411"></a><a class="code" href="servers_8cpp.html#a6">00411</a> <span class="keywordtype">bool</span> <a class="code" href="servers_8cpp.html#a6">already_have_sum</a>(std::string sum)
00412 {
00413 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < <a class="code" href="servers_8cpp.html#a4">xsums</a>.size(); i++)
00414 {
00415 <span class="keywordflow">if</span> (<a class="code" href="servers_8cpp.html#a4">xsums</a>[i] == sum)
00416 {
00417 <span class="keywordflow">return</span> <span class="keyword">true</span>;
00418 }
00419 }
00420 <span class="keywordflow">if</span> (<a class="code" href="servers_8cpp.html#a4">xsums</a>.size() >= 128)
00421 {
00422 <a class="code" href="servers_8cpp.html#a4">xsums</a>.pop_front();
00423 }
00424 <a class="code" href="servers_8cpp.html#a4">xsums</a>.push_back(sum);
00425 <span class="keywordflow">return</span> <span class="keyword">false</span>;
00426 }
00427
00428 <span class="comment">// receives a packet from any where there is data waiting, first come, first served</span>
00429 <span class="comment">// fills the message and host values with the host where the data came from.</span>
00430
<a name="l00431"></a><a class="code" href="classserverrec.html#a8">00431</a> <span class="keywordtype">bool</span> <a class="code" href="classserverrec.html#a8">serverrec::RecvPacket</a>(std::deque<std::string> &messages, <span class="keywordtype">char</span>* recvhost,std::deque<std::string> &sums)
00432 {
00433 <span class="keywordtype">char</span> data[65536];
00434 memset(data, 0, 65536);
00435 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < this-><a class="code" href="classserverrec.html#o11">connectors</a>.size(); i++)
00436 {
00437 <span class="keywordflow">if</span> (this-><a class="code" href="classserverrec.html#o11">connectors</a>[i].GetState() != <a class="code" href="connection_8h.html#a0">STATE_DISCONNECTED</a>)
00438 {
00439 <span class="comment">// returns false if the packet could not be sent (e.g. target host down)</span>
00440 <span class="keywordtype">int</span> rcvsize = 0;
00441
00442 <span class="comment">// check if theres any data on this socket</span>
00443 <span class="comment">// if not, continue onwards to the next.</span>
00444 pollfd polls;
00445 polls.fd = this-><a class="code" href="classserverrec.html#o11">connectors</a>[i].GetDescriptor();
00446 polls.events = POLLIN;
00447 <span class="keywordtype">int</span> ret = poll(&polls,1,1);
00448 <span class="keywordflow">if</span> (ret <= 0) <span class="keywordflow">continue</span>;
00449
00450 rcvsize = recv(this->connectors[i].GetDescriptor(),data,65000,0);
00451 data[rcvsize] = <span class="charliteral">'\0'</span>;
00452 <span class="keywordflow">if</span> (rcvsize == -1)
00453 {
00454 <span class="keywordflow">if</span> (errno != EAGAIN)
00455 {
00456 log(<a class="code" href="modules_8h.html#a0">DEBUG</a>,<span class="stringliteral">"recv() failed for serverrec::RecvPacket(): %s"</span>,strerror(errno));
00457 log(<a class="code" href="modules_8h.html#a0">DEBUG</a>,<span class="stringliteral">"Disabling connector: %s"</span>,this->connectors[i].GetServerName().c_str());
00458 this-><a class="code" href="classserverrec.html#o11">connectors</a>[i].CloseConnection();
00459 this-><a class="code" href="classserverrec.html#o11">connectors</a>[i].SetState(<a class="code" href="connection_8h.html#a0">STATE_DISCONNECTED</a>);
00460 <span class="keywordflow">if</span> (!<a class="code" href="servers_8cpp.html#a5">IsRoutable</a>(this->connectors[i].GetServerName()))
00461 {
00462 WriteOpers(<span class="stringliteral">"*** Server %s is no longer routable, disconnecting."</span>,this->connectors[i].GetServerName().c_str());
00463 DoSplit(this->connectors[i].GetServerName().c_str());
00464 }
00465 <a class="code" href="servers_8cpp.html#a3">has_been_netsplit</a> = <span class="keyword">true</span>;
00466 }
00467 }
00468 <span class="keywordtype">int</span> pushed = 0;
00469 <span class="keywordflow">if</span> (rcvsize > 0)
00470 {
00471 <span class="keywordflow">if</span> (!this-><a class="code" href="classserverrec.html#o11">connectors</a>[i].AddBuffer(data))
00472 {
00473 WriteOpers(<span class="stringliteral">"*** Read buffer for %s exceeds maximum, closing connection!"</span>,this->connectors[i].GetServerName().c_str());
00474 this-><a class="code" href="classserverrec.html#o11">connectors</a>[i].CloseConnection();
00475 this-><a class="code" href="classserverrec.html#o11">connectors</a>[i].SetState(<a class="code" href="connection_8h.html#a0">STATE_DISCONNECTED</a>);
00476 <span class="keywordflow">if</span> (!<a class="code" href="servers_8cpp.html#a5">IsRoutable</a>(this->connectors[i].GetServerName()))
00477 {
00478 WriteOpers(<span class="stringliteral">"*** Server %s is no longer routable, disconnecting."</span>,this->connectors[i].GetServerName().c_str());
00479 DoSplit(this->connectors[i].GetServerName().c_str());
00480 }
00481 <a class="code" href="servers_8cpp.html#a3">has_been_netsplit</a> = <span class="keyword">true</span>;
00482 }
00483 <span class="keywordflow">if</span> (this-><a class="code" href="classserverrec.html#o11">connectors</a>[i].BufferIsComplete())
00484 {
00485 this-><a class="code" href="classserverrec.html#o11">connectors</a>[i].ResetPing();
00486 <span class="keywordflow">while</span> (this-><a class="code" href="classserverrec.html#o11">connectors</a>[i].BufferIsComplete())
00487 {
00488 std::string text = this-><a class="code" href="classserverrec.html#o11">connectors</a>[i].GetBuffer();
00489 <span class="keywordflow">if</span> (text != <span class="stringliteral">""</span>)
00490 {
00491 <span class="keywordflow">if</span> ((text[0] == <span class="charliteral">':'</span>) && (text.find(<span class="stringliteral">" "</span>) != std::string::npos))
00492 {
00493 std::string orig = text;
00494 log(<a class="code" href="modules_8h.html#a0">DEBUG</a>,<span class="stringliteral">"Original: %s"</span>,text.c_str());
00495 std::string sum = text.substr(1,text.find(<span class="stringliteral">" "</span>)-1);
00496 text = text.substr(text.find(<span class="stringliteral">" "</span>)+1,text.length());
00497 std::string possible_token = text.substr(1,text.find(<span class="stringliteral">" "</span>)-1);
00498 <span class="keywordflow">if</span> (possible_token.length() > 1)
00499 {
00500 sums.push_back(<span class="stringliteral">"*"</span>);
00501 text = orig;
00502 log(<a class="code" href="modules_8h.html#a0">DEBUG</a>,<span class="stringliteral">"Non-mesh, non-tokenized string passed up the chain"</span>);
00503 }
00504 <span class="keywordflow">else</span>
00505 {
00506 log(<a class="code" href="modules_8h.html#a0">DEBUG</a>,<span class="stringliteral">"Packet sum: '%s'"</span>,sum.c_str());
00507 <span class="keywordflow">if</span> ((<a class="code" href="servers_8cpp.html#a6">already_have_sum</a>(sum)) && (sum != <span class="stringliteral">"*"</span>))
00508 {
00509 <span class="comment">// we don't accept dupes</span>
00510 <span class="keywordflow">continue</span>;
00511 }
00512 sums.push_back(sum.c_str());
00513 }
00514 }
00515 <span class="keywordflow">else</span> sums.push_back(<span class="stringliteral">"*"</span>);
00516 messages.push_back(text.c_str());
00517 strlcpy(recvhost,this->connectors[i].GetServerName().c_str(),160);
00518 log(<a class="code" href="modules_8h.html#a0">DEBUG</a>,<span class="stringliteral">"serverrec::RecvPacket() %d:%s->%s"</span>,pushed++,recvhost,text.c_str());
00519 }
00520 }
00521 <span class="keywordflow">return</span> <span class="keyword">true</span>;
00522 }
00523 }
00524 }
00525 }
00526 <span class="comment">// nothing new yet -- message and host will be undefined</span>
00527 <span class="keywordflow">return</span> <span class="keyword">false</span>;
00528 }
00529
</pre></div><hr size="1"><address style="align: right;"><small>Generated on Wed May 25 22:02:05 2005 for InspIRCd by
<a href="http://www.doxygen.org/index.html">
<img src="doxygen.png" alt="doxygen" align="middle" border=0 >
</a>1.3.3 </small></address>
</body>
</html>
|
