<!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="keywordtype">int</span> c = 0; 00259 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> x = 0; x < 32; x++) 00260 <span class="keywordflow">if</span> (<a class="code" href="channels_8cpp.html#a34">me</a>[x]) 00261 { 00262 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < <a class="code" href="channels_8cpp.html#a34">me</a>[x]-><a class="code" href="classserverrec.html#o11">connectors</a>.size(); i++) 00263 { 00264 <span class="keywordflow">if</span> ((<a class="code" href="channels_8cpp.html#a34">me</a>[x]-><a class="code" href="classserverrec.html#o11">connectors</a>[i].GetServerName() == servername) && (<a class="code" href="channels_8cpp.html#a34">me</a>[x]-><a class="code" href="classserverrec.html#o11">connectors</a>[i].GetState() != <a class="code" href="connection_8h.html#a0">STATE_DISCONNECTED</a>)) 00265 { 00266 c++; 00267 } 00268 } 00269 } 00270 <span class="keywordflow">return</span> (c != 0); 00271 } 00272 00273 <a name="l00274"></a><a class="code" href="classserverrec.html#a11">00274</a> <span class="keywordtype">void</span> <a class="code" href="classserverrec.html#a11">serverrec::FlushWriteBuffers</a>() 00275 { 00276 <span class="keywordtype">char</span> buffer[MAXBUF]; 00277 <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++) 00278 { 00279 <span class="comment">// don't try and ping a NOAUTH_OUTBOUND state, its not authed yet!</span> 00280 <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)) 00281 { 00282 <span class="comment">// however if we reach this timer its connected timed out :)</span> 00283 WriteOpers(<span class="stringliteral">"*** Connection to %s timed out"</span>,this->connectors[i].GetServerName().c_str()); 00284 snprintf(buffer,MAXBUF,<span class="stringliteral">"& %s"</span>,this->connectors[i].GetServerName().c_str()); 00285 NetSendToAllExcept(this->connectors[i].GetServerName().c_str(),buffer); 00286 DoSplit(this->connectors[i].GetServerName().c_str()); 00287 <span class="keywordflow">return</span>; 00288 } 00289 <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)) 00290 { 00291 WriteOpers(<span class="stringliteral">"*** Connection from %s timed out"</span>,this->connectors[i].GetServerName().c_str()); 00292 snprintf(buffer,MAXBUF,<span class="stringliteral">"& %s"</span>,this->connectors[i].GetServerName().c_str()); 00293 NetSendToAllExcept(this->connectors[i].GetServerName().c_str(),buffer); 00294 DoSplit(this->connectors[i].GetServerName().c_str()); 00295 <span class="keywordflow">return</span>; 00296 } 00297 <span class="keywordflow">if</span> (this->connectors[i].GetState() != <a class="code" href="connection_8h.html#a0">STATE_DISCONNECTED</a>) 00298 { 00299 <span class="keywordflow">if</span> (!this->connectors[i].CheckPing()) 00300 { 00301 WriteOpers(<span class="stringliteral">"*** Lost single connection to %s: Ping timeout"</span>,this->connectors[i].GetServerName().c_str()); 00302 this->connectors[i].CloseConnection(); 00303 this->connectors[i].SetState(<a class="code" href="connection_8h.html#a0">STATE_DISCONNECTED</a>); 00304 <span class="keywordflow">if</span> (!<a class="code" href="servers_8cpp.html#a5">IsRoutable</a>(this->connectors[i].GetServerName())) 00305 { 00306 WriteOpers(<span class="stringliteral">"*** Server %s is no longer routable, disconnecting."</span>,this->connectors[i].GetServerName().c_str()); 00307 snprintf(buffer,MAXBUF,<span class="stringliteral">"& %s"</span>,this->connectors[i].GetServerName().c_str()); 00308 NetSendToAllExcept(this->connectors[i].GetServerName().c_str(),buffer); 00309 DoSplit(this->connectors[i].GetServerName().c_str()); 00310 } 00311 <a class="code" href="servers_8cpp.html#a3">has_been_netsplit</a> = <span class="keyword">true</span>; 00312 } 00313 } 00314 <span class="keywordflow">if</span> ((this->connectors[i].GetWriteError() !=<span class="stringliteral">""</span>) && (this->connectors[i].GetState() != <a class="code" href="connection_8h.html#a0">STATE_DISCONNECTED</a>)) 00315 { 00316 <span class="comment">// if we're here the write() caused an error, we cannot proceed</span> 00317 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()); 00318 this->connectors[i].CloseConnection(); 00319 this->connectors[i].SetState(<a class="code" href="connection_8h.html#a0">STATE_DISCONNECTED</a>); 00320 <span class="keywordflow">if</span> (!<a class="code" href="servers_8cpp.html#a5">IsRoutable</a>(this->connectors[i].GetServerName())) 00321 { 00322 WriteOpers(<span class="stringliteral">"*** Server %s is no longer routable, disconnecting."</span>,this->connectors[i].GetServerName().c_str()); 00323 snprintf(buffer,MAXBUF,<span class="stringliteral">"& %s"</span>,this->connectors[i].GetServerName().c_str()); 00324 NetSendToAllExcept(this->connectors[i].GetServerName().c_str(),buffer); 00325 DoSplit(this->connectors[i].GetServerName().c_str()); 00326 } 00327 <a class="code" href="servers_8cpp.html#a3">has_been_netsplit</a> = <span class="keyword">true</span>; 00328 } 00329 <span class="keywordflow">if</span> ((this->connectors[i].HasBufferedOutput()) && (this->connectors[i].GetState() != <a class="code" href="connection_8h.html#a0">STATE_DISCONNECTED</a>)) 00330 { 00331 <span class="keywordflow">if</span> (!this->connectors[i].FlushWriteBuf()) 00332 { 00333 <span class="comment">// if we're here the write() caused an error, we cannot proceed</span> 00334 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()); 00335 this->connectors[i].CloseConnection(); 00336 this->connectors[i].SetState(<a class="code" href="connection_8h.html#a0">STATE_DISCONNECTED</a>); 00337 <span class="keywordflow">if</span> (!<a class="code" href="servers_8cpp.html#a5">IsRoutable</a>(this->connectors[i].GetServerName())) 00338 { 00339 WriteOpers(<span class="stringliteral">"*** Server %s is no longer routable, disconnecting."</span>,this->connectors[i].GetServerName().c_str()); 00340 snprintf(buffer,MAXBUF,<span class="stringliteral">"& %s"</span>,this->connectors[i].GetServerName().c_str()); 00341 NetSendToAllExcept(this->connectors[i].GetServerName().c_str(),buffer); 00342 DoSplit(this->connectors[i].GetServerName().c_str()); 00343 } 00344 <a class="code" href="servers_8cpp.html#a3">has_been_netsplit</a> = <span class="keyword">true</span>; 00345 } 00346 } 00347 } 00348 } 00349 <a name="l00350"></a><a class="code" href="classserverrec.html#a7">00350</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) 00351 { 00352 <span class="keywordflow">if</span> ((!message) || (!sendhost)) 00353 <span class="keywordflow">return</span> <span class="keyword">true</span>; 00354 00355 <a class="code" href="classircd__connector.html">ircd_connector</a>* cn = this-><a class="code" href="classserverrec.html#a9">FindHost</a>(sendhost); 00356 00357 <span class="keywordflow">if</span> (!strchr(message,<span class="charliteral">'\n'</span>)) 00358 { 00359 strlcat(message,<span class="stringliteral">"\n"</span>,MAXBUF); 00360 } 00361 00362 <span class="keywordflow">if</span> (cn) 00363 { 00364 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()); 00365 00366 <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>) 00367 { 00368 <span class="comment">// fix: can only route one hop to avoid a loop</span> 00369 <span class="keywordflow">if</span> (strncmp(message,<span class="stringliteral">"R "</span>,2)) 00370 { 00371 log(<a class="code" href="modules_8h.html#a0">DEBUG</a>,<span class="stringliteral">"Not a double reroute"</span>); 00372 <span class="comment">// this route is down, we must re-route the packet through an available point in the mesh.</span> 00373 <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++) 00374 { 00375 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()); 00376 <span class="comment">// search for another point in the mesh which can 'reach' where we want to go</span> 00377 <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++) 00378 { 00379 <span class="keywordflow">if</span> (!strcasecmp(this->connectors[k].routes[m].c_str(),sendhost)) 00380 { 00381 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()); 00382 <span class="keywordtype">char</span> buffer[MAXBUF]; 00383 snprintf(buffer,MAXBUF,<span class="stringliteral">"R %s %s"</span>,sendhost,message); 00384 this-><a class="code" href="classserverrec.html#a7">SendPacket</a>(buffer,this->connectors[k].GetServerName().c_str()); 00385 <span class="keywordflow">return</span> <span class="keyword">true</span>; 00386 } 00387 } 00388 } 00389 } 00390 <span class="keywordtype">char</span> buffer[MAXBUF]; 00391 snprintf(buffer,MAXBUF,<span class="stringliteral">"& %s"</span>,sendhost); 00392 WriteOpers(<span class="stringliteral">"*** All connections to %s lost."</span>,sendhost); 00393 NetSendToAllExcept(sendhost,buffer); 00394 DoSplit(sendhost); 00395 <span class="keywordflow">return</span> <span class="keyword">false</span>; 00396 } 00397 00398 <span class="comment">// returns false if the packet could not be sent (e.g. target host down)</span> 00399 <span class="keywordflow">if</span> (!cn-><a class="code" href="classircd__connector.html#a21">AddWriteBuf</a>(message)) 00400 { 00401 <span class="comment">// if we're here, there was an error pending, and the send cannot proceed</span> 00402 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()); 00403 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()); 00404 cn-><a class="code" href="classircd__connector.html#a14">CloseConnection</a>(); 00405 cn-><a class="code" href="classircd__connector.html#a7">SetState</a>(<a class="code" href="connection_8h.html#a0">STATE_DISCONNECTED</a>); 00406 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()); 00407 <span class="comment">// retry the packet along a new route so either arrival OR failure are gauranteed (bugfix)</span> 00408 <span class="keywordflow">return</span> this-><a class="code" href="classserverrec.html#a7">SendPacket</a>(message,sendhost); 00409 } 00410 <span class="keywordflow">if</span> (!cn-><a class="code" href="classircd__connector.html#a22">FlushWriteBuf</a>()) 00411 { 00412 <span class="comment">// if we're here the write() caused an error, we cannot proceed</span> 00413 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()); 00414 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()); 00415 cn-><a class="code" href="classircd__connector.html#a14">CloseConnection</a>(); 00416 cn-><a class="code" href="classircd__connector.html#a7">SetState</a>(<a class="code" href="connection_8h.html#a0">STATE_DISCONNECTED</a>); 00417 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()); 00418 <span class="comment">// retry the packet along a new route so either arrival OR failure are gauranteed</span> 00419 <span class="keywordflow">return</span> this-><a class="code" href="classserverrec.html#a7">SendPacket</a>(message,sendhost); 00420 } 00421 <span class="keywordflow">return</span> <span class="keyword">true</span>; 00422 } 00423 } 00424 <a name="l00425"></a><a class="code" href="servers_8cpp.html#a6">00425</a> <span class="keywordtype">bool</span> <a class="code" href="servers_8cpp.html#a6">already_have_sum</a>(std::string sum) 00426 { 00427 <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++) 00428 { 00429 <span class="keywordflow">if</span> (<a class="code" href="servers_8cpp.html#a4">xsums</a>[i] == sum) 00430 { 00431 <span class="keywordflow">return</span> <span class="keyword">true</span>; 00432 } 00433 } 00434 <span class="keywordflow">if</span> (<a class="code" href="servers_8cpp.html#a4">xsums</a>.size() >= 128) 00435 { 00436 <a class="code" href="servers_8cpp.html#a4">xsums</a>.pop_front(); 00437 } 00438 <a class="code" href="servers_8cpp.html#a4">xsums</a>.push_back(sum); 00439 <span class="keywordflow">return</span> <span class="keyword">false</span>; 00440 } 00441 00442 <span class="comment">// receives a packet from any where there is data waiting, first come, first served</span> 00443 <span class="comment">// fills the message and host values with the host where the data came from.</span> 00444 <a name="l00445"></a><a class="code" href="classserverrec.html#a8">00445</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) 00446 { 00447 <span class="keywordtype">char</span> data[65536],buffer[MAXBUF]; 00448 memset(data, 0, 65536); 00449 <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++) 00450 { 00451 <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>) 00452 { 00453 <span class="comment">// returns false if the packet could not be sent (e.g. target host down)</span> 00454 <span class="keywordtype">int</span> rcvsize = 0; 00455 00456 <span class="comment">// check if theres any data on this socket</span> 00457 <span class="comment">// if not, continue onwards to the next.</span> 00458 pollfd polls; 00459 polls.fd = this-><a class="code" href="classserverrec.html#o11">connectors</a>[i].GetDescriptor(); 00460 polls.events = POLLIN; 00461 <span class="keywordtype">int</span> ret = poll(&polls,1,1); 00462 <span class="keywordflow">if</span> (ret <= 0) <span class="keywordflow">continue</span>; 00463 00464 rcvsize = recv(this->connectors[i].GetDescriptor(),data,65000,0); 00465 data[rcvsize] = <span class="charliteral">'\0'</span>; 00466 <span class="keywordflow">if</span> (rcvsize == 0) 00467 { 00468 log(<a class="code" href="modules_8h.html#a0">DEBUG</a>,<span class="stringliteral">"recv() failed for serverrec::RecvPacket(): EOF"</span>); 00469 log(<a class="code" href="modules_8h.html#a0">DEBUG</a>,<span class="stringliteral">"Disabling connector: %s"</span>,this->connectors[i].GetServerName().c_str()); 00470 this-><a class="code" href="classserverrec.html#o11">connectors</a>[i].CloseConnection(); 00471 this-><a class="code" href="classserverrec.html#o11">connectors</a>[i].SetState(<a class="code" href="connection_8h.html#a0">STATE_DISCONNECTED</a>); 00472 <span class="keywordflow">if</span> (!<a class="code" href="servers_8cpp.html#a5">IsRoutable</a>(this->connectors[i].GetServerName())) 00473 { 00474 WriteOpers(<span class="stringliteral">"*** Server %s is no longer routable, disconnecting (EOF)"</span>,this->connectors[i].GetServerName().c_str()); 00475 snprintf(buffer,MAXBUF,<span class="stringliteral">"& %s"</span>,this->connectors[i].GetServerName().c_str()); 00476 NetSendToAllExcept(this->connectors[i].GetServerName().c_str(),buffer); 00477 DoSplit(this->connectors[i].GetServerName().c_str()); 00478 } 00479 <a class="code" href="servers_8cpp.html#a3">has_been_netsplit</a> = <span class="keyword">true</span>; 00480 } 00481 <span class="keywordflow">if</span> (rcvsize == -1) 00482 { 00483 <span class="keywordflow">if</span> (errno != EAGAIN) 00484 { 00485 log(<a class="code" href="modules_8h.html#a0">DEBUG</a>,<span class="stringliteral">"recv() failed for serverrec::RecvPacket(): %s"</span>,strerror(errno)); 00486 log(<a class="code" href="modules_8h.html#a0">DEBUG</a>,<span class="stringliteral">"Disabling connector: %s"</span>,this->connectors[i].GetServerName().c_str()); 00487 this-><a class="code" href="classserverrec.html#o11">connectors</a>[i].CloseConnection(); 00488 this-><a class="code" href="classserverrec.html#o11">connectors</a>[i].SetState(<a class="code" href="connection_8h.html#a0">STATE_DISCONNECTED</a>); 00489 <span class="keywordflow">if</span> (!<a class="code" href="servers_8cpp.html#a5">IsRoutable</a>(this->connectors[i].GetServerName())) 00490 { 00491 WriteOpers(<span class="stringliteral">"*** Server %s is no longer routable, disconnecting."</span>,this->connectors[i].GetServerName().c_str()); 00492 snprintf(buffer,MAXBUF,<span class="stringliteral">"& %s"</span>,this->connectors[i].GetServerName().c_str()); 00493 NetSendToAllExcept(this->connectors[i].GetServerName().c_str(),buffer); 00494 DoSplit(this->connectors[i].GetServerName().c_str()); 00495 } 00496 <a class="code" href="servers_8cpp.html#a3">has_been_netsplit</a> = <span class="keyword">true</span>; 00497 } 00498 } 00499 <span class="keywordtype">int</span> pushed = 0; 00500 <span class="keywordflow">if</span> (rcvsize > 0) 00501 { 00502 <span class="keywordflow">if</span> (!this-><a class="code" href="classserverrec.html#o11">connectors</a>[i].AddBuffer(data)) 00503 { 00504 WriteOpers(<span class="stringliteral">"*** Read buffer for %s exceeds maximum, closing connection!"</span>,this->connectors[i].GetServerName().c_str()); 00505 this-><a class="code" href="classserverrec.html#o11">connectors</a>[i].CloseConnection(); 00506 this-><a class="code" href="classserverrec.html#o11">connectors</a>[i].SetState(<a class="code" href="connection_8h.html#a0">STATE_DISCONNECTED</a>); 00507 <span class="keywordflow">if</span> (!<a class="code" href="servers_8cpp.html#a5">IsRoutable</a>(this->connectors[i].GetServerName())) 00508 { 00509 WriteOpers(<span class="stringliteral">"*** Server %s is no longer routable, disconnecting."</span>,this->connectors[i].GetServerName().c_str()); 00510 snprintf(buffer,MAXBUF,<span class="stringliteral">"& %s"</span>,this->connectors[i].GetServerName().c_str()); 00511 NetSendToAllExcept(this->connectors[i].GetServerName().c_str(),buffer); 00512 DoSplit(this->connectors[i].GetServerName().c_str()); 00513 } 00514 <a class="code" href="servers_8cpp.html#a3">has_been_netsplit</a> = <span class="keyword">true</span>; 00515 } 00516 <span class="keywordflow">if</span> (this-><a class="code" href="classserverrec.html#o11">connectors</a>[i].BufferIsComplete()) 00517 { 00518 this-><a class="code" href="classserverrec.html#o11">connectors</a>[i].ResetPing(); 00519 <span class="keywordflow">while</span> (this-><a class="code" href="classserverrec.html#o11">connectors</a>[i].BufferIsComplete()) 00520 { 00521 std::string text = this-><a class="code" href="classserverrec.html#o11">connectors</a>[i].GetBuffer(); 00522 <span class="keywordflow">if</span> (text != <span class="stringliteral">""</span>) 00523 { 00524 <span class="keywordflow">if</span> ((text[0] == <span class="charliteral">':'</span>) && (text.find(<span class="stringliteral">" "</span>) != std::string::npos)) 00525 { 00526 std::string orig = text; 00527 log(<a class="code" href="modules_8h.html#a0">DEBUG</a>,<span class="stringliteral">"Original: %s"</span>,text.c_str()); 00528 std::string sum = text.substr(1,text.find(<span class="stringliteral">" "</span>)-1); 00529 text = text.substr(text.find(<span class="stringliteral">" "</span>)+1,text.length()); 00530 std::string possible_token = text.substr(1,text.find(<span class="stringliteral">" "</span>)-1); 00531 <span class="keywordflow">if</span> (possible_token.length() > 1) 00532 { 00533 sums.push_back(<span class="stringliteral">"*"</span>); 00534 text = orig; 00535 log(<a class="code" href="modules_8h.html#a0">DEBUG</a>,<span class="stringliteral">"Non-mesh, non-tokenized string passed up the chain"</span>); 00536 } 00537 <span class="keywordflow">else</span> 00538 { 00539 log(<a class="code" href="modules_8h.html#a0">DEBUG</a>,<span class="stringliteral">"Packet sum: '%s'"</span>,sum.c_str()); 00540 <span class="keywordflow">if</span> ((<a class="code" href="servers_8cpp.html#a6">already_have_sum</a>(sum)) && (sum != <span class="stringliteral">"*"</span>)) 00541 { 00542 <span class="comment">// we don't accept dupes</span> 00543 <span class="keywordflow">continue</span>; 00544 } 00545 sums.push_back(sum.c_str()); 00546 } 00547 } 00548 <span class="keywordflow">else</span> sums.push_back(<span class="stringliteral">"*"</span>); 00549 messages.push_back(text.c_str()); 00550 strlcpy(recvhost,this->connectors[i].GetServerName().c_str(),160); 00551 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()); 00552 } 00553 } 00554 <span class="keywordflow">return</span> <span class="keyword">true</span>; 00555 } 00556 } 00557 } 00558 } 00559 <span class="comment">// nothing new yet -- message and host will be undefined</span> 00560 <span class="keywordflow">return</span> <span class="keyword">false</span>; 00561 } 00562 </pre></div><hr size="1"><address style="align: right;"><small>Generated on Mon May 30 05:15:21 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>