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<a name="l00237"></a>00237 <a name="l00238"></a>00238 <span class="keywordflow">if</span>(m->op == DHCP_REPLY &&<a name="l00239"></a>00239 memcmp(m->xid, xid, <span class="keyword">sizeof</span>(xid)) == 0 &&<a name="l00240"></a>00240 memcmp(m->chaddr, s.<a class="code" href="a00077.html#2391bb18db5f620e0e9fb848ae5ba5e9">mac_addr</a>, s.<a class="code" href="a00077.html#5361ef75bfbdb469b5cc31f0060a2670">mac_len</a>) == 0) {<a name="l00241"></a>00241 memcpy(s.<a class="code" href="a00077.html#1d2f2751b0865045486c9aa59d0d0971">ipaddr</a>, m->yiaddr, 4);<a name="l00242"></a>00242 <span class="keywordflow">return</span> parse_options(&m->options[4], <a class="code" href="a00147.html#g1a1bc437c09ddef238abab41d77c3177">uip_datalen</a>());<a name="l00243"></a>00243 }<a name="l00244"></a>00244 <span class="keywordflow">return</span> 0;<a name="l00245"></a>00245 }<a name="l00246"></a>00246 <span class="comment">/*---------------------------------------------------------------------------*/</span><a name="l00247"></a>00247 <span class="keyword">static</span><a name="l00248"></a>00248 <a class="code" href="a00142.html#g3d4c8bd4aada659eb34f5d2ffd3e7901">PT_THREAD</a>(handle_dhcp(<span class="keywordtype">void</span>))<a name="l00249"></a>00249 {<a name="l00250"></a>00250 <a class="code" href="a00142.html#g2ffbb9e554e08a343ae2f9de4bedfdfc">PT_BEGIN</a>(&s.<a class="code" href="a00077.html#31471b5e27bda51832d0fa49bd6d9b54">pt</a>);<a name="l00251"></a>00251 <a name="l00252"></a>00252 <span class="comment">/* try_again:*/</span><a name="l00253"></a>00253 s.<a class="code" href="a00077.html#e0b137a3875ad12a99e5e3e0e177fd12">state</a> = STATE_SENDING;<a name="l00254"></a>00254 s.<a class="code" href="a00077.html#e707c39412e09d3a47f0b3c5dad33725">ticks</a> = <a class="code" href="a00157.html#ge3ced0551b26c9b99cb45a86f34d100a">CLOCK_SECOND</a>;<a name="l00255"></a>00255 <a name="l00256"></a>00256 <span class="keywordflow">do</span> {<a name="l00257"></a>00257 send_discover();<a name="l00258"></a>00258 <a class="code" href="a00156.html#g6614d96fdfcd95c95ec6e6f63071ff51">timer_set</a>(&s.<a class="code" href="a00077.html#e80af46ceef63eab3c786525370ae720">timer</a>, s.<a class="code" href="a00077.html#e707c39412e09d3a47f0b3c5dad33725">ticks</a>);<a name="l00259"></a>00259 <a class="code" href="a00142.html#g99e43010ec61327164466aa2d902de45">PT_WAIT_UNTIL</a>(&s.<a class="code" href="a00077.html#31471b5e27bda51832d0fa49bd6d9b54">pt</a>, <a class="code" href="a00147.html#g26a14b8dae3f861830af9e7cf1e03725">uip_newdata</a>() || <a class="code" href="a00156.html#g6d71dececfce707c668e6257aad5906e">timer_expired</a>(&s.<a class="code" href="a00077.html#e80af46ceef63eab3c786525370ae720">timer</a>));<a name="l00260"></a>00260 <a name="l00261"></a>00261 <span class="keywordflow">if</span>(<a class="code" href="a00147.html#g26a14b8dae3f861830af9e7cf1e03725">uip_newdata</a>() && parse_msg() == DHCPOFFER) {<a name="l00262"></a>00262 s.<a class="code" href="a00077.html#e0b137a3875ad12a99e5e3e0e177fd12">state</a> = STATE_OFFER_RECEIVED;<a name="l00263"></a>00263 <span class="keywordflow">break</span>;<a name="l00264"></a>00264 }<a name="l00265"></a>00265 <a name="l00266"></a>00266 <span class="keywordflow">if</span>(s.<a class="code" href="a00077.html#e707c39412e09d3a47f0b3c5dad33725">ticks</a> < <a class="code" href="a00157.html#ge3ced0551b26c9b99cb45a86f34d100a">CLOCK_SECOND</a> * 60) {<a name="l00267"></a>00267 s.<a class="code" href="a00077.html#e707c39412e09d3a47f0b3c5dad33725">ticks</a> *= 2;<a name="l00268"></a>00268 }<a name="l00269"></a>00269 } <span class="keywordflow">while</span>(s.<a class="code" href="a00077.html#e0b137a3875ad12a99e5e3e0e177fd12">state</a> != STATE_OFFER_RECEIVED);<a name="l00270"></a>00270 <a name="l00271"></a>00271 s.<a class="code" href="a00077.html#e707c39412e09d3a47f0b3c5dad33725">ticks</a> = <a class="code" href="a00157.html#ge3ced0551b26c9b99cb45a86f34d100a">CLOCK_SECOND</a>;<a name="l00272"></a>00272 <a name="l00273"></a>00273 <span class="keywordflow">do</span> {<a name="l00274"></a>00274 send_request();<a name="l00275"></a>00275 <a class="code" href="a00156.html#g6614d96fdfcd95c95ec6e6f63071ff51">timer_set</a>(&s.<a class="code" href="a00077.html#e80af46ceef63eab3c786525370ae720">timer</a>, s.<a class="code" href="a00077.html#e707c39412e09d3a47f0b3c5dad33725">ticks</a>);<a name="l00276"></a>00276 <a class="code" href="a00142.html#g99e43010ec61327164466aa2d902de45">PT_WAIT_UNTIL</a>(&s.<a class="code" href="a00077.html#31471b5e27bda51832d0fa49bd6d9b54">pt</a>, <a class="code" href="a00147.html#g26a14b8dae3f861830af9e7cf1e03725">uip_newdata</a>() || <a class="code" href="a00156.html#g6d71dececfce707c668e6257aad5906e">timer_expired</a>(&s.<a class="code" href="a00077.html#e80af46ceef63eab3c786525370ae720">timer</a>));<a name="l00277"></a>00277 <a name="l00278"></a>00278 <span class="keywordflow">if</span>(<a class="code" href="a00147.html#g26a14b8dae3f861830af9e7cf1e03725">uip_newdata</a>() && parse_msg() == DHCPACK) {<a name="l00279"></a>00279 s.<a class="code" href="a00077.html#e0b137a3875ad12a99e5e3e0e177fd12">state</a> = STATE_CONFIG_RECEIVED;<a name="l00280"></a>00280 <span class="keywordflow">break</span>;<a name="l00281"></a>00281 }<a name="l00282"></a>00282 <a name="l00283"></a>00283 <span class="keywordflow">if</span>(s.<a class="code" href="a00077.html#e707c39412e09d3a47f0b3c5dad33725">ticks</a> <= <a class="code" href="a00157.html#ge3ced0551b26c9b99cb45a86f34d100a">CLOCK_SECOND</a> * 10) {<a name="l00284"></a>00284 s.<a class="code" href="a00077.html#e707c39412e09d3a47f0b3c5dad33725">ticks</a> += <a class="code" href="a00157.html#ge3ced0551b26c9b99cb45a86f34d100a">CLOCK_SECOND</a>;<a name="l00285"></a>00285 } <span class="keywordflow">else</span> {<a name="l00286"></a>00286 <a class="code" href="a00142.html#gcd3ac045f0a4ae63412e3b3d8780e8ab">PT_RESTART</a>(&s.<a class="code" href="a00077.html#31471b5e27bda51832d0fa49bd6d9b54">pt</a>);<a name="l00287"></a>00287 }<a name="l00288"></a>00288 } <span class="keywordflow">while</span>(s.<a class="code" href="a00077.html#e0b137a3875ad12a99e5e3e0e177fd12">state</a> != STATE_CONFIG_RECEIVED);<a name="l00289"></a>00289 <a name="l00290"></a>00290 <span class="preprocessor">#if 0</span><a name="l00291"></a>00291 <span class="preprocessor"></span> printf(<span class="stringliteral">"Got IP address %d.%d.%d.%d\n"</span>,<a name="l00292"></a>00292 <a class="code" href="a00148.html#g22fa0681cd463191d7a01fe85d86996f">uip_ipaddr1</a>(s.<a class="code" href="a00077.html#1d2f2751b0865045486c9aa59d0d0971">ipaddr</a>), <a class="code" href="a00148.html#gffcd2fbe181e2aaefbf970551c302af5">uip_ipaddr2</a>(s.<a class="code" href="a00077.html#1d2f2751b0865045486c9aa59d0d0971">ipaddr</a>),<a name="l00293"></a>00293 <a class="code" href="a00148.html#ge23534479ead15af8ff08ace26a47fb5">uip_ipaddr3</a>(s.<a class="code" href="a00077.html#1d2f2751b0865045486c9aa59d0d0971">ipaddr</a>), <a class="code" href="a00148.html#g165b603ec150e26efec7be199c9c2901">uip_ipaddr4</a>(s.<a class="code" href="a00077.html#1d2f2751b0865045486c9aa59d0d0971">ipaddr</a>));<a name="l00294"></a>00294 printf(<span class="stringliteral">"Got netmask %d.%d.%d.%d\n"</span>,<a name="l00295"></a>00295 <a class="code" href="a00148.html#g22fa0681cd463191d7a01fe85d86996f">uip_ipaddr1</a>(s.<a class="code" href="a00077.html#20541305548441e5dcb2e1e7e6f300eb">netmask</a>), <a class="code" href="a00148.html#gffcd2fbe181e2aaefbf970551c302af5">uip_ipaddr2</a>(s.<a class="code" href="a00077.html#20541305548441e5dcb2e1e7e6f300eb">netmask</a>),<a name="l00296"></a>00296 <a class="code" href="a00148.html#ge23534479ead15af8ff08ace26a47fb5">uip_ipaddr3</a>(s.<a class="code" href="a00077.html#20541305548441e5dcb2e1e7e6f300eb">netmask</a>), <a class="code" href="a00148.html#g165b603ec150e26efec7be199c9c2901">uip_ipaddr4</a>(s.<a class="code" href="a00077.html#20541305548441e5dcb2e1e7e6f300eb">netmask</a>));<a name="l00297"></a>00297 printf(<span class="stringliteral">"Got DNS server %d.%d.%d.%d\n"</span>,<a name="l00298"></a>00298 <a class="code" href="a00148.html#g22fa0681cd463191d7a01fe85d86996f">uip_ipaddr1</a>(s.<a class="code" href="a00077.html#27df2817055bc099821d96eb60a40b34">dnsaddr</a>), <a class="code" href="a00148.html#gffcd2fbe181e2aaefbf970551c302af5">uip_ipaddr2</a>(s.<a class="code" href="a00077.html#27df2817055bc099821d96eb60a40b34">dnsaddr</a>),<a name="l00299"></a>00299 <a class="code" href="a00148.html#ge23534479ead15af8ff08ace26a47fb5">uip_ipaddr3</a>(s.<a class="code" href="a00077.html#27df2817055bc099821d96eb60a40b34">dnsaddr</a>), <a class="code" href="a00148.html#g165b603ec150e26efec7be199c9c2901">uip_ipaddr4</a>(s.<a class="code" href="a00077.html#27df2817055bc099821d96eb60a40b34">dnsaddr</a>));<a name="l00300"></a>00300 printf(<span class="stringliteral">"Got default router %d.%d.%d.%d\n"</span>,<a name="l00301"></a>00301 <a class="code" href="a00148.html#g22fa0681cd463191d7a01fe85d86996f">uip_ipaddr1</a>(s.<a class="code" href="a00077.html#5e16ca335dfd7394527f602da879fca2">default_router</a>), <a class="code" href="a00148.html#gffcd2fbe181e2aaefbf970551c302af5">uip_ipaddr2</a>(s.<a class="code" href="a00077.html#5e16ca335dfd7394527f602da879fca2">default_router</a>),<a name="l00302"></a>00302 <a class="code" href="a00148.html#ge23534479ead15af8ff08ace26a47fb5">uip_ipaddr3</a>(s.<a class="code" href="a00077.html#5e16ca335dfd7394527f602da879fca2">default_router</a>), <a class="code" href="a00148.html#g165b603ec150e26efec7be199c9c2901">uip_ipaddr4</a>(s.<a class="code" href="a00077.html#5e16ca335dfd7394527f602da879fca2">default_router</a>));<a name="l00303"></a>00303 printf(<span class="stringliteral">"Lease expires in %ld seconds\n"</span>,<a name="l00304"></a>00304 <a class="code" href="a00148.html#g118e9d76568ab81ad97f138d4ea1ddd2">ntohs</a>(s.<a class="code" href="a00077.html#7a520a57d7d0541524f34a7685635597">lease_time</a>[0])*65536ul + <a class="code" href="a00148.html#g118e9d76568ab81ad97f138d4ea1ddd2">ntohs</a>(s.<a class="code" href="a00077.html#7a520a57d7d0541524f34a7685635597">lease_time</a>[1]));<a name="l00305"></a>00305 <span class="preprocessor">#endif</span><a name="l00306"></a>00306 <span class="preprocessor"></span><a name="l00307"></a>00307 dhcpc_configured(&s);<a name="l00308"></a>00308 <a name="l00309"></a>00309 <span class="comment">/* timer_stop(&s.timer);*/</span><a name="l00310"></a>00310 <a name="l00311"></a>00311 <span class="comment">/*</span><a name="l00312"></a>00312 <span class="comment"> * PT_END restarts the thread so we do this instead. Eventually we</span><a name="l00313"></a>00313 <span class="comment"> * should reacquire expired leases here.</span><a name="l00314"></a>00314 <span class="comment"> */</span><a name="l00315"></a>00315 <span class="keywordflow">while</span>(1) {<a name="l00316"></a>00316 <a class="code" href="a00142.html#g155cba6121323726d02c00284428fed6">PT_YIELD</a>(&s.<a class="code" href="a00077.html#31471b5e27bda51832d0fa49bd6d9b54">pt</a>);<a name="l00317"></a>00317 }<a name="l00318"></a>00318 <a name="l00319"></a>00319 <a class="code" href="a00142.html#g7b04a0035bef29d905496c23bae066d2">PT_END</a>(&s.<a class="code" href="a00077.html#31471b5e27bda51832d0fa49bd6d9b54">pt</a>);<a name="l00320"></a>00320 }<a name="l00321"></a>00321 <span class="comment">/*---------------------------------------------------------------------------*/</span><a name="l00322"></a>00322 <span class="keywordtype">void</span><a name="l00323"></a>00323 dhcpc_init(<span class="keyword">const</span> <span class="keywordtype">void</span> *mac_addr, <span class="keywordtype">int</span> mac_len)<a name="l00324"></a>00324 {<a name="l00325"></a>00325 <a class="code" href="a00150.html#g1ef35301f43a5bbb9f89f07b5a36b9a0">uip_ipaddr_t</a> addr;<a name="l00326"></a>00326 <a name="l00327"></a>00327 s.<a class="code" href="a00077.html#2391bb18db5f620e0e9fb848ae5ba5e9">mac_addr</a> = mac_addr;<a name="l00328"></a>00328 s.<a class="code" href="a00077.html#5361ef75bfbdb469b5cc31f0060a2670">mac_len</a> = mac_len;<a name="l00329"></a>00329 <a name="l00330"></a>00330 s.<a class="code" href="a00077.html#e0b137a3875ad12a99e5e3e0e177fd12">state</a> = STATE_INITIAL;<a name="l00331"></a>00331 <a class="code" href="a00148.html#g87f0b54ade0d159fba495089128a4932">uip_ipaddr</a>(addr, 255,255,255,255);<a name="l00332"></a>00332 s.<a class="code" href="a00077.html#cfd36e02c7498d766ff802575e981612">conn</a> = <a class="code" href="a00147.html#g79c4110211247df3fb30b8cf1c4c02af">uip_udp_new</a>(&addr, <a class="code" href="a00148.html#g69a7a4951ff21b302267532c21ee78fc">HTONS</a>(DHCPC_SERVER_PORT));<a name="l00333"></a>00333 <span class="keywordflow">if</span>(s.<a class="code" href="a00077.html#cfd36e02c7498d766ff802575e981612">conn</a> != <a class="code" href="a00160.html#g070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {<a name="l00334"></a>00334 <a class="code" href="a00147.html#ga20812098a4663c8a9fc4ce8e95391b6">uip_udp_bind</a>(s.<a class="code" href="a00077.html#cfd36e02c7498d766ff802575e981612">conn</a>, <a class="code" href="a00148.html#g69a7a4951ff21b302267532c21ee78fc">HTONS</a>(DHCPC_CLIENT_PORT));<a name="l00335"></a>00335 }<a name="l00336"></a>00336 <a class="code" href="a00142.html#ge6bae7dc0225468c8a5ac269df549892">PT_INIT</a>(&s.<a class="code" href="a00077.html#31471b5e27bda51832d0fa49bd6d9b54">pt</a>);<a name="l00337"></a>00337 }<a name="l00338"></a>00338 <span class="comment">/*---------------------------------------------------------------------------*/</span><a name="l00339"></a>00339 <span class="keywordtype">void</span><a name="l00340"></a>00340 dhcpc_appcall(<span class="keywordtype">void</span>)<a name="l00341"></a>00341 {<a name="l00342"></a>00342 handle_dhcp();<a name="l00343"></a>00343 }<a name="l00344"></a>00344 <span class="comment">/*---------------------------------------------------------------------------*/</span><a name="l00345"></a>00345 <span class="keywordtype">void</span><a name="l00346"></a>00346 dhcpc_request(<span class="keywordtype">void</span>)<a name="l00347"></a>00347 {<a name="l00348"></a>00348 <a class="code" href="a00153.html#g77570ac4fcab86864fa1916e55676da2">u16_t</a> ipaddr[2];<a name="l00349"></a>00349 <a name="l00350"></a>00350 <span class="keywordflow">if</span>(s.<a class="code" href="a00077.html#e0b137a3875ad12a99e5e3e0e177fd12">state</a> == STATE_INITIAL) {<a name="l00351"></a>00351 <a class="code" href="a00148.html#g87f0b54ade0d159fba495089128a4932">uip_ipaddr</a>(ipaddr, 0,0,0,0);<a name="l00352"></a>00352 <a class="code" href="a00144.html#g12b467f314489259dd718228d0827a51">uip_sethostaddr</a>(ipaddr);<a name="l00353"></a>00353 <span class="comment">/* handle_dhcp(PROCESS_EVENT_NONE, NULL);*/</span><a name="l00354"></a>00354 }<a name="l00355"></a>00355 }<a name="l00356"></a>00356 <span class="comment">/*---------------------------------------------------------------------------*/</span></pre></div><hr size="1"><address style="align: right;"><small>Generated on Mon Jun 12 10:23:01 2006 for uIP 1.0 by <a href="http://www.doxygen.org/index.html"><img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.4.6 </small></address></body></html>⌨️ 快捷键说明
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