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00261         soc-&gt;<a class="code" href="structtcb.html#m11">tos</a> = 0;
00262         soc-&gt;<a class="code" href="structtcb.html#m16">event_listener</a> = 0;
00263         soc-&gt;<a class="code" href="structtcb.html#m3">rem_ip</a> = 0;
00264         soc-&gt;<a class="code" href="structtcb.html#m4">remport</a> = 0;
00265         soc-&gt;<a class="code" href="structtcb.html#m5">locport</a> = 0;
00266         soc-&gt;<a class="code" href="structtcb.html#m2">flags</a> = 0;
00267         
00268         <span class="keywordflow">return</span>(sochandle);
00269 
00270 }
00271 
<a name="l00290"></a><a class="code" href="tcp_8c.html#a5">00290</a> INT8 <a class="code" href="tcp_8c.html#a5">tcp_listen</a> (INT8 sochandle, UINT16 port)
00291 {
00292         <span class="keyword">struct </span><a class="code" href="structtcb.html">tcb</a>* soc;
00293 
00294         <span class="keywordflow">if</span>( NO_OF_TCPSOCKETS &lt; 0 )
00295                 <span class="keywordflow">return</span>(-1);
00296         
00297         <span class="keywordflow">if</span>( NO_OF_TCPSOCKETS == 0 )
00298                 <span class="keywordflow">return</span>(-1);
00299         
00300         <span class="keywordflow">if</span>( sochandle &gt; NO_OF_TCPSOCKETS ) {
00301                 TCP_DEBUGOUT(<span class="stringliteral">"Socket handle non-valid\r\n"</span>);
00302                 <span class="keywordflow">return</span>(-1);
00303         }
00304         
00305         <span class="keywordflow">if</span>( sochandle &lt; 0 ) {
00306                 TCP_DEBUGOUT(<span class="stringliteral">"Socket handle non-valid\r\n"</span>);
00307                 <span class="keywordflow">return</span>(-1);
00308         }
00309         
00310         soc = &amp;tcp_socket[sochandle];           <span class="comment">/* Get referense        */</span>
00311                 
00312         <span class="keywordflow">if</span>( (soc-&gt;<a class="code" href="structtcb.html#m1">type</a> &amp; <a class="code" href="tcp__ip_8h.html#a39">TCP_TYPE_SERVER</a>) == 0 ) {
00313                 TCP_DEBUGOUT(<span class="stringliteral">"Socket has no server properties\r\n"</span>);
00314                 <span class="keywordflow">return</span>(-1);
00315         }
00316         
00317         <span class="keywordflow">if</span>( soc-&gt;<a class="code" href="structtcb.html#m16">event_listener</a> == 0) {
00318                 TCP_DEBUGOUT(<span class="stringliteral">"ERROR:No event listener function specified\r\n"</span>);
00319                 <span class="keywordflow">return</span>(-1);
00320         }
00321         
00322         
00323         <span class="keywordflow">if</span>( (soc-&gt;<a class="code" href="structtcb.html#m0">state</a> != <a class="code" href="tcp__ip_8h.html#a43">TCP_STATE_RESERVED</a>) &amp;&amp;
00324                 (soc-&gt;<a class="code" href="structtcb.html#m0">state</a> != <a class="code" href="tcp__ip_8h.html#a45">TCP_STATE_LISTENING</a>)     &amp;&amp;
00325                 (soc-&gt;<a class="code" href="structtcb.html#m0">state</a> != <a class="code" href="tcp__ip_8h.html#a44">TCP_STATE_CLOSED</a>) &amp;&amp;             
00326                 (soc-&gt;<a class="code" href="structtcb.html#m0">state</a> != <a class="code" href="tcp__ip_8h.html#a52">TCP_STATE_TIMED_WAIT</a>)            ) {
00327                 TCP_DEBUGOUT(<span class="stringliteral">"Not possible to listen, socket on connected state\r\n"</span>);
00328                 <span class="keywordflow">return</span>(-1);
00329         
00330         }
00331         
00332                         
00333         <span class="comment">/* Init socket          */</span>
00334                                 
00335         soc-&gt;<a class="code" href="structtcb.html#m0">state</a> = <a class="code" href="tcp__ip_8h.html#a45">TCP_STATE_LISTENING</a>;
00336         <span class="comment">/*soc-&gt;type = TCP_TYPE_SERVER;*/</span>
00337         soc-&gt;<a class="code" href="structtcb.html#m2">flags</a> = 0;
00338         soc-&gt;<a class="code" href="structtcb.html#m3">rem_ip</a> = 0;
00339         soc-&gt;<a class="code" href="structtcb.html#m4">remport</a> = 0;
00340         soc-&gt;<a class="code" href="structtcb.html#m5">locport</a> = port;
00341         soc-&gt;<a class="code" href="structtcb.html#m6">send_unacked</a> = 0;
00342         soc-&gt;<a class="code" href="structtcb.html#m7">myflags</a> = 0;
00343         soc-&gt;<a class="code" href="structtcb.html#m8">send_next</a> = 0xFFFFFFFF;
00344         soc-&gt;<a class="code" href="structtcb.html#m9">send_mtu</a> = TCP_DEF_MTU;
00345         soc-&gt;<a class="code" href="structtcb.html#m12">receive_next</a> = 0;
00346         soc-&gt;<a class="code" href="structtcb.html#m15">retries_left</a> = 0;
00347                         
00348         TCP_DEBUGOUT(<span class="stringliteral">"TCP listening socket created\r\n"</span>);
00349                         
00350         <span class="keywordflow">return</span>(sochandle);
00351 
00352 }
00353 
00354 
<a name="l00377"></a><a class="code" href="tcp_8c.html#a6">00377</a> INT8 <a class="code" href="tcp_8c.html#a6">tcp_connect</a> (INT8 sochandle, UINT32 ip, UINT16 rport, UINT16 myport )
00378 {
00379         <span class="keyword">struct </span><a class="code" href="structtcb.html">tcb</a>* soc;
00380         
00381         TCP_DEBUGOUT(<span class="stringliteral">"FUNCTION: tcp_connect\r\n"</span>);
00382 
00383         <span class="keywordflow">if</span>( NO_OF_TCPSOCKETS &lt; 0 )
00384                 <span class="keywordflow">return</span>(-1);
00385         
00386         <span class="keywordflow">if</span>( NO_OF_TCPSOCKETS == 0 )
00387                 <span class="keywordflow">return</span>(-1);
00388         
00389         <span class="keywordflow">if</span>( sochandle &gt; NO_OF_TCPSOCKETS ) {
00390                 TCP_DEBUGOUT(<span class="stringliteral">"Socket handle non-valid\r\n"</span>);
00391                 <span class="keywordflow">return</span>(-1);
00392         }
00393         
00394         <span class="keywordflow">if</span>( sochandle &lt; 0 ) {
00395                 TCP_DEBUGOUT(<span class="stringliteral">"Socket handle non-valid\r\n"</span>);
00396                 <span class="keywordflow">return</span>(-1);
00397         }
00398         
00399         <span class="comment">/* Is the local port defined    */</span>
00400         
00401         <span class="keywordflow">if</span>( myport == 0 )
00402                 myport = <a class="code" href="tcp_8c.html#a89">tcp_getfreeport</a>();
00403         
00404         <span class="keywordflow">if</span>( myport == 0 )
00405                 <span class="keywordflow">return</span>(-1);
00406         
00407         soc = &amp;tcp_socket[sochandle];           <span class="comment">/* Get referense        */</span>
00408         
00409         <span class="comment">/* Do we have client properties?        */</span>
00410         
00411         <span class="keywordflow">if</span>( (soc-&gt;<a class="code" href="structtcb.html#m1">type</a> &amp; <a class="code" href="tcp__ip_8h.html#a40">TCP_TYPE_CLIENT</a>) == 0 ) {
00412                 TCP_DEBUGOUT(<span class="stringliteral">"Socket has no client properties\r\n"</span>);
00413                 <span class="keywordflow">return</span>(-1);
00414         }
00415         
00416         <span class="keywordflow">if</span>( soc-&gt;<a class="code" href="structtcb.html#m16">event_listener</a> == 0) {
00417                 TCP_DEBUGOUT(<span class="stringliteral">"ERROR:No event listener function specified\r\n"</span>);
00418                 <span class="keywordflow">return</span>(-1);
00419         }
00420         
00421         <span class="comment">/* Are we on LISTENING, RESERVED or CLOSED state        */</span>
00422         
00423         <span class="keywordflow">if</span>( (soc-&gt;<a class="code" href="structtcb.html#m0">state</a> != <a class="code" href="tcp__ip_8h.html#a43">TCP_STATE_RESERVED</a>) &amp;&amp;
00424                 (soc-&gt;<a class="code" href="structtcb.html#m0">state</a> != <a class="code" href="tcp__ip_8h.html#a45">TCP_STATE_LISTENING</a>) &amp;&amp;
00425                 (soc-&gt;<a class="code" href="structtcb.html#m0">state</a> != <a class="code" href="tcp__ip_8h.html#a44">TCP_STATE_CLOSED</a>)                ) {
00426                 TCP_DEBUGOUT(<span class="stringliteral">"Socket on unvalid state to initialize CONNECT\r\n"</span>);
00427                 <span class="keywordflow">return</span>(-1);
00428         }
00429         
00430         <span class="comment">/* Then just set parameters and send SYN        */</span>
00431         
00432         soc-&gt;<a class="code" href="structtcb.html#m3">rem_ip</a> = ip;
00433         soc-&gt;<a class="code" href="structtcb.html#m4">remport</a> = rport;
00434         soc-&gt;<a class="code" href="structtcb.html#m5">locport</a> = myport;
00435         soc-&gt;<a class="code" href="structtcb.html#m2">flags</a> = 0;
00436         soc-&gt;<a class="code" href="structtcb.html#m9">send_mtu</a> = TCP_DEF_MTU;
00437         
00438         <span class="comment">/* get initial sequence number  */</span>
00439         
00440         soc-&gt;<a class="code" href="structtcb.html#m6">send_unacked</a> = <a class="code" href="tcp_8c.html#a79">tcp_initseq</a>(); 
00441         soc-&gt;<a class="code" href="structtcb.html#m8">send_next</a> = soc-&gt;<a class="code" href="structtcb.html#m6">send_unacked</a> + 1;
00442         soc-&gt;<a class="code" href="structtcb.html#m7">myflags</a> = TCP_FLAG_SYN;
00443         <a class="code" href="tcp_8c.html#a16">tcp_sendcontrol</a>(sochandle);
00444         <a class="code" href="tcp_8c.html#a20">tcp_newstate</a>(soc, <a class="code" href="tcp__ip_8h.html#a47">TCP_STATE_SYN_SENT</a>);
00445         
00446         <span class="keywordflow">return</span>(sochandle);
00447 }
00448 
00449 
00450 
<a name="l00481"></a><a class="code" href="tcp_8c.html#a7">00481</a> INT16 <a class="code" href="tcp_8c.html#a7">tcp_send</a> (INT8 sockethandle, UINT8* buf, UINT16 blen, UINT16 dlen)
00482 {
00483         <span class="keyword">struct </span><a class="code" href="structtcb.html">tcb</a>* soc;
00484         UINT8 i;
00485 
00486         
00487         TCP_DEBUGOUT(<span class="stringliteral">"Entering to send TCP data packet\r\n"</span>);
00488         
00489         kick_WD();
00490         
00491         <span class="keywordflow">if</span>( sockethandle &lt; 0 ) {
00492                 TCP_DEBUGOUT(<span class="stringliteral">"ERROR:Socket Handle not valid (&lt;0)\r\n"</span>);
00493                 <span class="keywordflow">return</span>(-1);
00494         }
00495         
00496         <span class="keywordflow">if</span>( sockethandle &gt; NO_OF_TCPSOCKETS ) {
00497                 TCP_DEBUGOUT(<span class="stringliteral">"ERROR:Socket Handle not valid (&gt;NO_OF_TCPSOCKETS)\r\n"</span>);