<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/> <title>pcsc-lite: winscard_msg_srv.c File Reference</title> <link href="tabs.css" rel="stylesheet" type="text/css"/> <link href="doxygen.css" rel="stylesheet" type="text/css"/> </head> <body> <!-- Generated by Doxygen 1.6.2-20100208 --> <div class="navigation" id="top"> <div class="tabs"> <ul> <li><a href="index.html"><span>Main Page</span></a></li> <li><a href="pages.html"><span>Related Pages</span></a></li> <li><a href="modules.html"><span>Modules</span></a></li> <li><a href="annotated.html"><span>Data Structures</span></a></li> <li class="current"><a href="files.html"><span>Files</span></a></li> <li><a href="dirs.html"><span>Directories</span></a></li> </ul> </div> <div class="tabs"> <ul> <li><a href="files.html"><span>File List</span></a></li> <li><a href="globals.html"><span>Globals</span></a></li> </ul> </div> <div class="navpath"><a class="el" href="dir_c68a5dfdca54003c765e303a18006edb.html">src</a> </div> </div> <div class="contents"> <h1>winscard_msg_srv.c File Reference</h1> <p>client/server communication (on the server side only) <a href="#_details">More...</a></p> <code>#include "config.h"</code><br/> <code>#include <fcntl.h></code><br/> <code>#include <unistd.h></code><br/> <code>#include <sys/types.h></code><br/> <code>#include <sys/stat.h></code><br/> <code>#include <sys/socket.h></code><br/> <code>#include <sys/time.h></code><br/> <code>#include <sys/un.h></code><br/> <code>#include <sys/ioctl.h></code><br/> <code>#include <errno.h></code><br/> <code>#include <stdio.h></code><br/> <code>#include <time.h></code><br/> <code>#include <string.h></code><br/> <code>#include "misc.h"</code><br/> <code>#include "<a class="el" href="pcscd_8h_source.html">pcscd.h</a>"</code><br/> <code>#include "<a class="el" href="winscard_8h_source.html">winscard.h</a>"</code><br/> <code>#include "<a class="el" href="debuglog_8h_source.html">debuglog.h</a>"</code><br/> <code>#include "<a class="el" href="winscard__msg_8h_source.html">winscard_msg.h</a>"</code><br/> <code>#include "<a class="el" href="sys__generic_8h_source.html">sys_generic.h</a>"</code><br/> <div class="dynheader"> Include dependency graph for winscard_msg_srv.c:</div> <div class="dynsection"> </div> <p><a href="winscard__msg__srv_8c_source.html">Go to the source code of this file.</a></p> <table border="0" cellpadding="0" cellspacing="0"> <tr><td colspan="2"><h2>Functions</h2></td></tr> <tr><td class="memItemLeft" align="right" valign="top">static int </td><td class="memItemRight" valign="bottom"><a class="el" href="winscard__msg__srv_8c.html#a9daf00a9f46d3e86afb2ab1e17470547">SHMProcessCommonChannelRequest</a> (uint32_t *pdwClientID)</td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">Accepts a Client connection. <a href="#a9daf00a9f46d3e86afb2ab1e17470547"></a><br/></td></tr> <tr><td class="memItemLeft" align="right" valign="top">INTERNAL int32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="winscard__msg__srv_8c.html#a7f73b8df9dc165deb9775d35cff8973d">SHMInitializeCommonSegment</a> (void)</td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">Prepares the communication channel used by the server to talk to the clients. <a href="#a7f73b8df9dc165deb9775d35cff8973d"></a><br/></td></tr> <tr><td class="memItemLeft" align="right" valign="top">INTERNAL int32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="winscard__msg__srv_8c.html#a0bba564b08a9b2044ccd41580d6d7566">SHMProcessEventsServer</a> (uint32_t *pdwClientID)</td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">Looks for messages sent by clients. <a href="#a0bba564b08a9b2044ccd41580d6d7566"></a><br/></td></tr> <tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a7b9db088df74f87199e70b838298bf6d"></a><!-- doxytag: member="winscard_msg_srv.c::SHMProcessEventsContext" ref="a7b9db088df74f87199e70b838298bf6d" args="(uint32_t dwClientID, psharedSegmentMsg msgStruct)" --> INTERNAL int32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="winscard__msg__srv_8c.html#a7b9db088df74f87199e70b838298bf6d">SHMProcessEventsContext</a> (uint32_t dwClientID, <a class="el" href="structrxSharedSegment.html">psharedSegmentMsg</a> msgStruct)</td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">Called by <code><a class="el" href="winscard__svc_8c.html#a10a1e7f5d0806084134a299398dbc81a" title="Handles messages received from Clients.">ContextThread()</a></code>. <br/></td></tr> <tr><td colspan="2"><h2>Variables</h2></td></tr> <tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a840eb2cc63fe5b38ec8edb835bc7c40c"></a><!-- doxytag: member="winscard_msg_srv.c::commonSocket" ref="a840eb2cc63fe5b38ec8edb835bc7c40c" args="" --> static int </td><td class="memItemRight" valign="bottom"><a class="el" href="winscard__msg__srv_8c.html#a840eb2cc63fe5b38ec8edb835bc7c40c">commonSocket</a> = 0</td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">Socket to a file, used for clients-server comminication. <br/></td></tr> <tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a7c1bcbba3beb47ba1f62a370bd7ec32c"></a><!-- doxytag: member="winscard_msg_srv.c::AraKiri" ref="a7c1bcbba3beb47ba1f62a370bd7ec32c" args="" --> char </td><td class="memItemRight" valign="bottom"><b>AraKiri</b></td></tr> <tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="aad78ba97e2ad3cb9dd87839f67862681"></a><!-- doxytag: member="winscard_msg_srv.c::ReCheckSerialReaders" ref="aad78ba97e2ad3cb9dd87839f67862681" args="" --> char </td><td class="memItemRight" valign="bottom"><b>ReCheckSerialReaders</b></td></tr> <tr><td class="memItemLeft" align="right" valign="top">static const char * </td><td class="memItemRight" valign="bottom"><b>CommandsText</b> []</td></tr> </table> <hr/><a name="_details"></a><h2>Detailed Description</h2> <p>client/server communication (on the server side only) </p> <p>A file based socket (<code>commonSocket</code>) is used to send/receive only messages among clients and server.<br/> The messages' data are passed throw a memory mapped file: <code>sharedSegmentMsg</code>. </p> <p>Definition in file <a class="el" href="winscard__msg__srv_8c_source.html">winscard_msg_srv.c</a>.</p> <hr/><h2>Function Documentation</h2> <a class="anchor" id="a7f73b8df9dc165deb9775d35cff8973d"></a><!-- doxytag: member="winscard_msg_srv.c::SHMInitializeCommonSegment" ref="a7f73b8df9dc165deb9775d35cff8973d" args="(void)" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">INTERNAL int32_t SHMInitializeCommonSegment </td> <td>(</td> <td class="paramtype">void </td> <td class="paramname"></td> <td> ) </td> <td></td> </tr> </table> </div> <div class="memdoc"> <p>Prepares the communication channel used by the server to talk to the clients. </p> <p>This is called by the server to create a socket for local IPC with the clients. The socket is associated to the file <code>PCSCLITE_CSOCK_NAME</code>. Each client will open a connection to this socket.</p> <dl class="return"><dt><b>Returns:</b></dt><dd>Error code. </dd></dl> <dl><dt><b>Return values:</b></dt><dd> <table border="0" cellspacing="2" cellpadding="0"> <tr><td valign="top"></td><td valign="top"><em>0</em> </td><td>Success </td></tr> <tr><td valign="top"></td><td valign="top"><em>-1</em> </td><td>Can not create the socket. </td></tr> <tr><td valign="top"></td><td valign="top"><em>-1</em> </td><td>Can not bind the socket to the file <code>PCSCLITE_CSOCK_NAME</code>. </td></tr> <tr><td valign="top"></td><td valign="top"><em>-1</em> </td><td>Can not put the socket in listen mode. </td></tr> </table> </dd> </dl> <p>Definition at line <a class="el" href="winscard__msg__srv_8c_source.html#l00133">133</a> of file <a class="el" href="winscard__msg__srv_8c_source.html">winscard_msg_srv.c</a>.</p> <p>References <a class="el" href="winscard__msg__srv_8c_source.html#l00048">commonSocket</a>, <a class="el" href="winscard__msg_8c_source.html#l00478">SHMCleanupSharedSegment()</a>, and <a class="el" href="sys__unix_8c_source.html#l00157">SYS_RemoveFile()</a>.</p> <p>Referenced by <a class="el" href="pcscdaemon_8c_source.html#l00080">SVCServiceRunLoop()</a>.</p> <p><div class="dynheader"> Here is the call graph for this function:</div> <div class="dynsection"> </div> </p> </div> </div> <a class="anchor" id="a9daf00a9f46d3e86afb2ab1e17470547"></a><!-- doxytag: member="winscard_msg_srv.c::SHMProcessCommonChannelRequest" ref="a9daf00a9f46d3e86afb2ab1e17470547" args="(uint32_t *pdwClientID)" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">static int SHMProcessCommonChannelRequest </td> <td>(</td> <td class="paramtype">uint32_t * </td> <td class="paramname"> <em>pdwClientID</em></td> <td> ) </td> <td><code> [static]</code></td> </tr> </table> </div> <div class="memdoc"> <p>Accepts a Client connection. </p> <p>Called by <code><a class="el" href="winscard__msg_8h.html#a0dcf683dc7824fb581a5aa6fe99f09ce" title="Looks for messages sent by clients.">SHMProcessEventsServer()</a></code>.</p> <dl><dt><b>Parameters:</b></dt><dd> <table border="0" cellspacing="2" cellpadding="0"> <tr><td valign="top"><tt>[out]</tt> </td><td valign="top"><em>pdwClientID</em> </td><td>Connection ID used to reference the Client.</td></tr> </table> </dd> </dl> <dl class="return"><dt><b>Returns:</b></dt><dd>Error code. </dd></dl> <dl><dt><b>Return values:</b></dt><dd> <table border="0" cellspacing="2" cellpadding="0"> <tr><td valign="top"></td><td valign="top"><em>0</em> </td><td>Success. </td></tr> <tr><td valign="top"></td><td valign="top"><em>-1</em> </td><td>Can not establish the connection. </td></tr> <tr><td valign="top"></td><td valign="top"><em>-1</em> </td><td>Can not set the connection to non-blocking mode. </td></tr> </table> </dd> </dl> <p>Definition at line <a class="el" href="winscard__msg__srv_8c_source.html#l00087">87</a> of file <a class="el" href="winscard__msg__srv_8c_source.html">winscard_msg_srv.c</a>.</p> <p>References <a class="el" href="winscard__msg__srv_8c_source.html#l00048">commonSocket</a>, and <a class="el" href="sys__unix_8c_source.html#l00143">SYS_CloseFile()</a>.</p> <p>Referenced by <a class="el" href="winscard__msg__srv_8c_source.html#l00193">SHMProcessEventsServer()</a>.</p> <p><div class="dynheader"> Here is the call graph for this function:</div> <div class="dynsection"> </div> </p> </div> </div> <a class="anchor" id="a0bba564b08a9b2044ccd41580d6d7566"></a><!-- doxytag: member="winscard_msg_srv.c::SHMProcessEventsServer" ref="a0bba564b08a9b2044ccd41580d6d7566" args="(uint32_t *pdwClientID)" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">INTERNAL int32_t SHMProcessEventsServer </td> <td>(</td> <td class="paramtype">uint32_t * </td> <td class="paramname"> <em>pdwClientID</em></td> <td> ) </td> <td></td> </tr> </table> </div> <div class="memdoc"> <p>Looks for messages sent by clients. </p> <p>This is called by the Server's function <code><a class="el" href="pcscdaemon_8c.html#aa4c7ad16505a34733683cf8c08241783" title="The Server's Message Queue Listener function.">SVCServiceRunLoop()</a></code>.</p> <dl><dt><b>Parameters:</b></dt><dd> <table border="0" cellspacing="2" cellpadding="0"> <tr><td valign="top"><tt>[out]</tt> </td><td valign="top"><em>pdwClientID</em> </td><td>Connection ID used to reference the Client.</td></tr> </table> </dd> </dl> <dl class="return"><dt><b>Returns:</b></dt><dd>Error code. </dd></dl> <dl><dt><b>Return values:</b></dt><dd> <table border="0" cellspacing="2" cellpadding="0"> <tr><td valign="top"></td><td valign="top"><em>0</em> </td><td>Success. </td></tr> <tr><td valign="top"></td><td valign="top"><em>-1</em> </td><td>Error accessing the communication channel. </td></tr> <tr><td valign="top"></td><td valign="top"><em>-1</em> </td><td>Can not set the connection to non-blocking mode. </td></tr> <tr><td valign="top"></td><td valign="top"><em>2</em> </td><td>Timeout. </td></tr> </table> </dd> </dl> <p>Definition at line <a class="el" href="winscard__msg__srv_8c_source.html#l00193">193</a> of file <a class="el" href="winscard__msg__srv_8c_source.html">winscard_msg_srv.c</a>.</p> <p>References <a class="el" href="winscard__msg__srv_8c_source.html#l00048">commonSocket</a>, and <a class="el" href="winscard__msg__srv_8c_source.html#l00087">SHMProcessCommonChannelRequest()</a>.</p> <p>Referenced by <a class="el" href="pcscdaemon_8c_source.html#l00080">SVCServiceRunLoop()</a>.</p> <p><div class="dynheader"> Here is the call graph for this function:</div> <div class="dynsection"> </div> </p> </div> </div> <hr/><h2>Variable Documentation</h2> <a class="anchor" id="a7e0939c34e53323d54001986fe0ef3d8"></a><!-- doxytag: member="winscard_msg_srv.c::CommandsText" ref="a7e0939c34e53323d54001986fe0ef3d8" args="[]" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">const char* CommandsText[]<code> [static]</code></td> </tr> </table> </div> <div class="memdoc"> <b>Initial value:</b><div class="fragment"><pre class="fragment"> { <span class="stringliteral">"CMD_VERSION"</span>, <span class="stringliteral">"ESTABLISH_CONTEXT"</span>, <span class="stringliteral">"RELEASE_CONTEXT"</span>, <span class="stringliteral">"LIST_READERS"</span>, <span class="stringliteral">"CONNECT"</span>, <span class="stringliteral">"RECONNECT"</span>, <span class="stringliteral">"DISCONNECT"</span>, <span class="stringliteral">"BEGIN_TRANSACTION"</span>, <span class="stringliteral">"END_TRANSACTION"</span>, <span class="stringliteral">"TRANSMIT"</span>, <span class="stringliteral">"CONTROL"</span>, <span class="stringliteral">"STATUS"</span>, <span class="stringliteral">"GET_STATUS_CHANGE"</span>, <span class="stringliteral">"CANCEL"</span>, <span class="stringliteral">"CANCEL_TRANSACTION"</span>, <span class="stringliteral">"GET_ATTRIB"</span>, <span class="stringliteral">"SET_ATTRIB"</span>, <span class="stringliteral">"TRANSMIT_EXTENDED"</span>, <span class="stringliteral">"CONTROL_EXTENDED"</span>, <span class="stringliteral">"NULL"</span> } </pre></div> <p>Definition at line <a class="el" href="winscard__msg__srv_8c_source.html#l00052">52</a> of file <a class="el" href="winscard__msg__srv_8c_source.html">winscard_msg_srv.c</a>.</p> </div> </div> </div> <hr class="footer"/><address style="text-align: right;"><small>Generated by <a href="http://www.doxygen.org/index.html"> <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.6.2-20100208 </small></address> </body> </html>