tristan/ZealOS
1
0
Fork 0
mirror of https://github.com/Zeal-Operating-System/ZealOS.git synced 2025-01-02 18:56:32 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions
ZealOS/docs/Home/Net/Protocols/DHCP.CC.html
TomAwezome 1b75d91002 Fix Mount AHCI Port selection. 
Add arg to SATARep to specify drive types to show.
Add checks in AHCIPortInit to verify port signatures, add helper method to get signatures from port.
2021-08-02 16:40:05 -04:00

569 lines
52 KiB
HTML
Executable file
Raw Blame History

<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html;charset=US-ASCII">
<meta name="generator" content="ZealOS V0.13">
<style type="text/css">
body {background-color:#fef1f0;}
.cF0{color:#000000;background-color:#fef1f0;}
.cF1{color:#0148a4;background-color:#fef1f0;}
.cF2{color:#3b7901;background-color:#fef1f0;}
.cF3{color:#057c7e;background-color:#fef1f0;}
.cF4{color:#bb2020;background-color:#fef1f0;}
.cF5{color:#9e42ae;background-color:#fef1f0;}
.cF6{color:#b57901;background-color:#fef1f0;}
.cF7{color:#b2b6af;background-color:#fef1f0;}
.cF8{color:#555753;background-color:#fef1f0;}
.cF9{color:#678fbb;background-color:#fef1f0;}
.cFA{color:#82bc49;background-color:#fef1f0;}
.cFB{color:#0097a2;background-color:#fef1f0;}
.cFC{color:#e26a6a;background-color:#fef1f0;}
.cFD{color:#c671bc;background-color:#fef1f0;}
.cFE{color:#c7ab00;background-color:#fef1f0;}
.cFF{color:#fef1f0;background-color:#fef1f0;}
</style>
</head>
<body>
<pre style="font-family:monospace;font-size:12pt">
<a name="l1"></a><span class=cF2>//www.networksorcery.com/enp/protocol/dhcp.htm</span><span class=cF0>
<a name="l2"></a>
<a name="l3"></a>#</span><span class=cF1>define</span><span class=cF0> DHCP_OPCODE_BOOTREQUEST </span><span class=cFE>0x01</span><span class=cF0>
<a name="l4"></a>
<a name="l5"></a>#</span><span class=cF1>define</span><span class=cF0> DHCP_OPTION_SUBNET_MASK </span><span class=cFE>1</span><span class=cF0>
<a name="l6"></a>#</span><span class=cF1>define</span><span class=cF0> DHCP_OPTION_ROUTER </span><span class=cFE>3</span><span class=cF0>
<a name="l7"></a>#</span><span class=cF1>define</span><span class=cF0> DHCP_OPTION_DNS </span><span class=cFE>6</span><span class=cF0>
<a name="l8"></a>#</span><span class=cF1>define</span><span class=cF0> DHCP_OPTION_DOMAIN_NAME </span><span class=cFE>15</span><span class=cF0>
<a name="l9"></a>
<a name="l10"></a>#</span><span class=cF1>define</span><span class=cF0> DHCP_OPTION_REQUESTED_IP </span><span class=cFE>50</span><span class=cF0>
<a name="l11"></a>#</span><span class=cF1>define</span><span class=cF0> DHCP_OPTION_MESSAGETYPE </span><span class=cFE>53</span><span class=cF0>
<a name="l12"></a>#</span><span class=cF1>define</span><span class=cF0> DHCP_OPTION_SERVER_ID </span><span class=cFE>54</span><span class=cF0>
<a name="l13"></a>#</span><span class=cF1>define</span><span class=cF0> DHCP_OPTION_PARAMLIST </span><span class=cFE>55</span><span class=cF0>
<a name="l14"></a>
<a name="l15"></a>#</span><span class=cF1>define</span><span class=cF0> DHCP_MESSAGETYPE_DISCOVER </span><span class=cFE>0x01</span><span class=cF0>
<a name="l16"></a>#</span><span class=cF1>define</span><span class=cF0> DHCP_MESSAGETYPE_OFFER </span><span class=cFE>0x02</span><span class=cF0>
<a name="l17"></a>#</span><span class=cF1>define</span><span class=cF0> DHCP_MESSAGETYPE_REQUEST </span><span class=cFE>0x03</span><span class=cF0>
<a name="l18"></a>#</span><span class=cF1>define</span><span class=cF0> DHCP_MESSAGETYPE_ACK </span><span class=cFE>0x05</span><span class=cF0>
<a name="l19"></a>
<a name="l20"></a>#</span><span class=cF1>define</span><span class=cF0> DHCP_COOKIE </span><span class=cFE>0x63825363</span><span class=cF0>
<a name="l21"></a>
<a name="l22"></a>#</span><span class=cF1>define</span><span class=cF0> DHCP_STATE_CLIENT_START </span><span class=cFE>0</span><span class=cF0>
<a name="l23"></a>#</span><span class=cF1>define</span><span class=cF0> DHCP_STATE_CLIENT_DISCOVER </span><span class=cFE>1</span><span class=cF0>
<a name="l24"></a>#</span><span class=cF1>define</span><span class=cF0> DHCP_STATE_CLIENT_REQUEST </span><span class=cFE>2</span><span class=cF0>
<a name="l25"></a>#</span><span class=cF1>define</span><span class=cF0> DHCP_STATE_CLIENT_REQ_ACCEPTED </span><span class=cFE>3</span><span class=cF0>
<a name="l26"></a>
<a name="l27"></a>#</span><span class=cF1>define</span><span class=cF0> DHCP_TIMEOUT </span><span class=cFE>3000</span><span class=cF0>
<a name="l28"></a>#</span><span class=cF1>define</span><span class=cF0> DHCP_MAX_RETRIES </span><span class=cFE>5</span><span class=cF0> </span><span class=cF2>// shrine has 3, why not 5 :^)</span><span class=cF0>
<a name="l29"></a>
<a name="l30"></a></span><span class=cF1>class</span><span class=cF0> CDHCPHeader
<a name="l31"></a>{
<a name="l32"></a> </span><span class=cF1>U8</span><span class=cF0> opcode; </span><span class=cF2>// Opcode</span><span class=cF0>
<a name="l33"></a> </span><span class=cF1>U8</span><span class=cF0> hw_type; </span><span class=cF2>// Hardware Type</span><span class=cF0>
<a name="l34"></a> </span><span class=cF1>U8</span><span class=cF0> hw_addr_len; </span><span class=cF2>// Hardware Address Length</span><span class=cF0>
<a name="l35"></a> </span><span class=cF1>U8</span><span class=cF0> hops; </span><span class=cF2>// Hop Count</span><span class=cF0>
<a name="l36"></a> </span><span class=cF9>U32</span><span class=cF0> xid; </span><span class=cF2>// Transaction ID</span><span class=cF0>
<a name="l37"></a> </span><span class=cF9>U16</span><span class=cF0> seconds; </span><span class=cF2>// Elapsed time in seconds since client began address acquisition or renewal process</span><span class=cF0>
<a name="l38"></a> </span><span class=cF9>U16</span><span class=cF0> flags; </span><span class=cF2>// Flags</span><span class=cF0>
<a name="l39"></a> </span><span class=cF9>U32</span><span class=cF0> client_ip; </span><span class=cF2>// Client IP Address</span><span class=cF0>
<a name="l40"></a> </span><span class=cF9>U32</span><span class=cF0> your_ip; </span><span class=cF2>// Your IP Address</span><span class=cF0>
<a name="l41"></a> </span><span class=cF9>U32</span><span class=cF0> server_ip; </span><span class=cF2>// Server IP Address</span><span class=cF0>
<a name="l42"></a> </span><span class=cF9>U32</span><span class=cF0> gateway_ip; </span><span class=cF2>// Gateway IP Address</span><span class=cF0>
<a name="l43"></a> </span><span class=cF1>U8</span><span class=cF0> client_hw_addr[</span><span class=cFE>16</span><span class=cF0>]; </span><span class=cF2>// Client Hardware Address</span><span class=cF0>
<a name="l44"></a> </span><span class=cF1>U8</span><span class=cF0> server_name[</span><span class=cFE>64</span><span class=cF0>]; </span><span class=cF2>// Server Hostname</span><span class=cF0>
<a name="l45"></a> </span><span class=cF1>U8</span><span class=cF0> boot_file[</span><span class=cFE>128</span><span class=cF0>]; </span><span class=cF2>// Boot Filename</span><span class=cF0>
<a name="l46"></a>};
<a name="l47"></a>
<a name="l48"></a></span><span class=cF1>class</span><span class=cF0> CDHCPDiscoverOptions
<a name="l49"></a>{
<a name="l50"></a> </span><span class=cF9>U32</span><span class=cF0> cookie;
<a name="l51"></a> </span><span class=cF1>U8</span><span class=cF0> message_type;
<a name="l52"></a> </span><span class=cF1>U8</span><span class=cF0> message_length;
<a name="l53"></a> </span><span class=cF1>U8</span><span class=cF0> message; </span><span class=cF2>// dmt</span><span class=cF0>
<a name="l54"></a> </span><span class=cF1>U8</span><span class=cF0> param_req_list_type;
<a name="l55"></a> </span><span class=cF1>U8</span><span class=cF0> param_req_list_length;
<a name="l56"></a> </span><span class=cF1>U8</span><span class=cF0> param_req_list[</span><span class=cFE>4</span><span class=cF0>];
<a name="l57"></a> </span><span class=cF1>U8</span><span class=cF0> </span><span class=cF1>end</span><span class=cF0>;
<a name="l58"></a>};
<a name="l59"></a>
<a name="l60"></a></span><span class=cF1>class</span><span class=cF0> CDHCPRequestOptions
<a name="l61"></a>{
<a name="l62"></a> </span><span class=cF9>U32</span><span class=cF0> cookie;
<a name="l63"></a> </span><span class=cF1>U8</span><span class=cF0> message_type;
<a name="l64"></a> </span><span class=cF1>U8</span><span class=cF0> message_length;
<a name="l65"></a> </span><span class=cF1>U8</span><span class=cF0> message; </span><span class=cF2>// dmt</span><span class=cF0>
<a name="l66"></a> </span><span class=cF1>U8</span><span class=cF0> requested_ip_type;
<a name="l67"></a> </span><span class=cF1>U8</span><span class=cF0> requested_ip_length;
<a name="l68"></a> </span><span class=cF9>U32</span><span class=cF0> requested_ip;
<a name="l69"></a> </span><span class=cF1>U8</span><span class=cF0> server_id_type;
<a name="l70"></a> </span><span class=cF1>U8</span><span class=cF0> server_id_length;
<a name="l71"></a> </span><span class=cF9>U32</span><span class=cF0> server_id;
<a name="l72"></a> </span><span class=cF1>U8</span><span class=cF0> </span><span class=cF1>end</span><span class=cF0>;
<a name="l73"></a>};
<a name="l74"></a>
<a name="l75"></a></span><span class=cF9>U32</span><span class=cF0> DHCPTransactionBegin()
<a name="l76"></a>{
<a name="l77"></a> </span><span class=cF1>return</span><span class=cF0> </span><span class=cF5>RandU32</span><span class=cF0>;
<a name="l78"></a>}
<a name="l79"></a>
<a name="l80"></a></span><span class=cF9>I64</span><span class=cF0> DHCPDiscoverSend(</span><span class=cF9>U32</span><span class=cF0> xid)
<a name="l81"></a>{
<a name="l82"></a> </span><span class=cF1>U8</span><span class=cF0> *dhcp_frame;
<a name="l83"></a> </span><span class=cF9>I64</span><span class=cF0> de_index;
<a name="l84"></a> CDHCPHeader *dhcp;
<a name="l85"></a> CDHCPDiscoverOptions *opts;
<a name="l86"></a>
<a name="l87"></a>
<a name="l88"></a> de_index = UDPPacketAllocate(&amp;dhcp_frame,
<a name="l89"></a> </span><span class=cFE>0x00000000</span><span class=cF0>,
<a name="l90"></a> </span><span class=cFE>68</span><span class=cF0>,
<a name="l91"></a> </span><span class=cFE>0xFFFFFFFF</span><span class=cF0>,
<a name="l92"></a> </span><span class=cFE>67</span><span class=cF0>,
<a name="l93"></a> </span><span class=cF1>sizeof</span><span class=cF7>(</span><span class=cF0>CDHCPHeader</span><span class=cF7>)</span><span class=cF0> + </span><span class=cF1>sizeof</span><span class=cF7>(</span><span class=cF0>CDHCPDiscoverOptions</span><span class=cF7>)</span><span class=cF0>);
<a name="l94"></a> </span><span class=cF1>if</span><span class=cF0> (de_index &lt; </span><span class=cFE>0</span><span class=cF0>)
<a name="l95"></a> </span><span class=cF7>{</span><span class=cF0>
<a name="l96"></a> NetErr(</span><span class=cF6>&quot;DHCP SEND DISCOVER: Failed, UDP Packet Allocate error.&quot;</span><span class=cF0>);
<a name="l97"></a> </span><span class=cF1>return</span><span class=cF0> de_index;
<a name="l98"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l99"></a>
<a name="l100"></a> dhcp = dhcp_frame;
<a name="l101"></a> </span><span class=cF5>MemSet</span><span class=cF0>(dhcp, </span><span class=cFE>0</span><span class=cF0>, </span><span class=cF1>sizeof</span><span class=cF7>(</span><span class=cF0>CDHCPHeader</span><span class=cF7>)</span><span class=cF0>);
<a name="l102"></a>
<a name="l103"></a> dhcp-&gt;opcode = DHCP_OPCODE_BOOTREQUEST;
<a name="l104"></a> dhcp-&gt;hw_type = HTYPE_ETHERNET;
<a name="l105"></a> dhcp-&gt;hw_addr_len = HLEN_ETHERNET;
<a name="l106"></a> dhcp-&gt;hops = </span><span class=cFE>0</span><span class=cF0>;
<a name="l107"></a> dhcp-&gt;xid = </span><span class=cF5>EndianU32</span><span class=cF0>(xid);
<a name="l108"></a> dhcp-&gt;seconds = </span><span class=cFE>0</span><span class=cF0>;
<a name="l109"></a> dhcp-&gt;flags = </span><span class=cF5>EndianU16</span><span class=cF0>(</span><span class=cFE>0x8000</span><span class=cF0>); </span><span class=cF2>// DHCP flag: accept Offer from Broadcast.</span><span class=cF0>
<a name="l110"></a> dhcp-&gt;client_ip = </span><span class=cFE>0</span><span class=cF0>;
<a name="l111"></a> dhcp-&gt;your_ip = </span><span class=cFE>0</span><span class=cF0>;
<a name="l112"></a> dhcp-&gt;server_ip = </span><span class=cFE>0</span><span class=cF0>;
<a name="l113"></a> dhcp-&gt;gateway_ip = </span><span class=cFE>0</span><span class=cF0>;
<a name="l114"></a> </span><span class=cF5>MemCopy</span><span class=cF0>(dhcp-&gt;client_hw_addr, EthernetMACGet, MAC_ADDRESS_LENGTH);
<a name="l115"></a>
<a name="l116"></a> opts = dhcp_frame + </span><span class=cF1>sizeof</span><span class=cF0>(CDHCPHeader);
<a name="l117"></a>
<a name="l118"></a> opts-&gt;cookie = </span><span class=cF5>EndianU32</span><span class=cF0>(DHCP_COOKIE);
<a name="l119"></a> opts-&gt;message_type = DHCP_OPTION_MESSAGETYPE;
<a name="l120"></a> opts-&gt;message_length = </span><span class=cFE>1</span><span class=cF0>;
<a name="l121"></a> opts-&gt;message = DHCP_MESSAGETYPE_DISCOVER;
<a name="l122"></a> opts-&gt;param_req_list_type = DHCP_OPTION_PARAMLIST;
<a name="l123"></a> opts-&gt;param_req_list_length = </span><span class=cFE>4</span><span class=cF0>;
<a name="l124"></a> opts-&gt;param_req_list[</span><span class=cFE>0</span><span class=cF0>] = DHCP_OPTION_SUBNET_MASK;
<a name="l125"></a> opts-&gt;param_req_list[</span><span class=cFE>1</span><span class=cF0>] = DHCP_OPTION_ROUTER;
<a name="l126"></a> opts-&gt;param_req_list[</span><span class=cFE>2</span><span class=cF0>] = DHCP_OPTION_DNS;
<a name="l127"></a> opts-&gt;param_req_list[</span><span class=cFE>3</span><span class=cF0>] = DHCP_OPTION_DOMAIN_NAME;
<a name="l128"></a> opts-&gt;</span><span class=cF1>end</span><span class=cF0> = </span><span class=cFE>0xFF</span><span class=cF0>; </span><span class=cF2>// ??</span><span class=cF0>
<a name="l129"></a>
<a name="l130"></a> UDPPacketFinish(de_index);
<a name="l131"></a> </span><span class=cF1>return</span><span class=cF0> de_index;
<a name="l132"></a>}
<a name="l133"></a>
<a name="l134"></a></span><span class=cF9>I64</span><span class=cF0> DHCPRequestSend(</span><span class=cF9>U32</span><span class=cF0> xid, </span><span class=cF9>U32</span><span class=cF0> requested_ip, </span><span class=cF9>U32</span><span class=cF0> server_ip)
<a name="l135"></a>{
<a name="l136"></a> </span><span class=cF1>U8</span><span class=cF0> *dhcp_frame;
<a name="l137"></a> </span><span class=cF9>I64</span><span class=cF0> de_index;
<a name="l138"></a> CDHCPHeader *dhcp;
<a name="l139"></a> CDHCPRequestOptions *opts;
<a name="l140"></a>
<a name="l141"></a> de_index = UDPPacketAllocate(&amp;dhcp_frame,
<a name="l142"></a> </span><span class=cFE>0x00000000</span><span class=cF0>,
<a name="l143"></a> </span><span class=cFE>68</span><span class=cF0>,
<a name="l144"></a> </span><span class=cFE>0xFFFFFFFF</span><span class=cF0>,
<a name="l145"></a> </span><span class=cFE>67</span><span class=cF0>,
<a name="l146"></a> </span><span class=cF1>sizeof</span><span class=cF7>(</span><span class=cF0>CDHCPHeader</span><span class=cF7>)</span><span class=cF0> + </span><span class=cF1>sizeof</span><span class=cF7>(</span><span class=cF0>CDHCPRequestOptions</span><span class=cF7>)</span><span class=cF0>);
<a name="l147"></a> </span><span class=cF1>if</span><span class=cF0> (de_index &lt; </span><span class=cFE>0</span><span class=cF0>)
<a name="l148"></a> </span><span class=cF7>{</span><span class=cF0>
<a name="l149"></a> NetErr(</span><span class=cF6>&quot;DHCP SEND REQUEST: Failed, UDP Packet Allocate error.&quot;</span><span class=cF0>);
<a name="l150"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l151"></a>
<a name="l152"></a> dhcp = dhcp_frame;
<a name="l153"></a> </span><span class=cF5>MemSet</span><span class=cF0>(dhcp, </span><span class=cFE>0</span><span class=cF0>, </span><span class=cF1>sizeof</span><span class=cF7>(</span><span class=cF0>CDHCPHeader</span><span class=cF7>)</span><span class=cF0>);
<a name="l154"></a>
<a name="l155"></a> dhcp-&gt;opcode = DHCP_OPCODE_BOOTREQUEST;
<a name="l156"></a> dhcp-&gt;hw_type = HTYPE_ETHERNET;
<a name="l157"></a> dhcp-&gt;hw_addr_len = HLEN_ETHERNET;
<a name="l158"></a> dhcp-&gt;hops = </span><span class=cFE>0</span><span class=cF0>;
<a name="l159"></a> dhcp-&gt;xid = </span><span class=cF5>EndianU32</span><span class=cF0>(xid);
<a name="l160"></a> dhcp-&gt;seconds = </span><span class=cFE>0</span><span class=cF0>;
<a name="l161"></a> dhcp-&gt;flags = </span><span class=cF5>EndianU16</span><span class=cF0>(</span><span class=cFE>0x0000</span><span class=cF0>); </span><span class=cF2>// DHCP flag: accept ACK from Unicast.</span><span class=cF0>
<a name="l162"></a> dhcp-&gt;client_ip = </span><span class=cFE>0</span><span class=cF0>;
<a name="l163"></a> dhcp-&gt;your_ip = </span><span class=cFE>0</span><span class=cF0>;
<a name="l164"></a> dhcp-&gt;server_ip = </span><span class=cF5>EndianU32</span><span class=cF0>(server_ip);
<a name="l165"></a> dhcp-&gt;gateway_ip = </span><span class=cFE>0</span><span class=cF0>;
<a name="l166"></a> </span><span class=cF5>MemCopy</span><span class=cF0>(dhcp-&gt;client_hw_addr, EthernetMACGet, MAC_ADDRESS_LENGTH);
<a name="l167"></a>
<a name="l168"></a> opts = dhcp_frame + </span><span class=cF1>sizeof</span><span class=cF0>(CDHCPHeader);
<a name="l169"></a>
<a name="l170"></a> opts-&gt;cookie = </span><span class=cF5>EndianU32</span><span class=cF0>(DHCP_COOKIE);
<a name="l171"></a> opts-&gt;message_type = DHCP_OPTION_MESSAGETYPE;
<a name="l172"></a> opts-&gt;message_length = </span><span class=cFE>1</span><span class=cF0>;
<a name="l173"></a> opts-&gt;message = DHCP_MESSAGETYPE_REQUEST;
<a name="l174"></a> opts-&gt;requested_ip_type = DHCP_OPTION_REQUESTED_IP;
<a name="l175"></a> opts-&gt;requested_ip_length = </span><span class=cFE>4</span><span class=cF0>;
<a name="l176"></a> opts-&gt;requested_ip = </span><span class=cF5>EndianU32</span><span class=cF0>(requested_ip);
<a name="l177"></a> opts-&gt;server_id_type = DHCP_OPTION_SERVER_ID;
<a name="l178"></a> opts-&gt;server_id_length = </span><span class=cFE>4</span><span class=cF0>;
<a name="l179"></a> opts-&gt;server_id = </span><span class=cF5>EndianU32</span><span class=cF0>(server_ip);
<a name="l180"></a> opts-&gt;</span><span class=cF1>end</span><span class=cF0> = </span><span class=cFE>0xFF</span><span class=cF0>;
<a name="l181"></a>
<a name="l182"></a> UDPPacketFinish(de_index);
<a name="l183"></a> </span><span class=cF1>return</span><span class=cF0> </span><span class=cFE>0</span><span class=cF0>;
<a name="l184"></a>}
<a name="l185"></a>
<a name="l186"></a></span><span class=cF9>I64</span><span class=cF0> DHCPBeginParse(</span><span class=cF1>U8</span><span class=cF0> **data_inout, </span><span class=cF9>I64</span><span class=cF0> *length_inout, CDHCPHeader **header_out)
<a name="l187"></a>{
<a name="l188"></a> </span><span class=cF1>U8</span><span class=cF0> *data = *data_inout;
<a name="l189"></a> </span><span class=cF9>I64</span><span class=cF0> length = *length_inout;
<a name="l190"></a> </span><span class=cF9>U32</span><span class=cF0> *cookie;
<a name="l191"></a>
<a name="l192"></a> </span><span class=cF1>if</span><span class=cF0> (length &lt; </span><span class=cF1>sizeof</span><span class=cF7>(</span><span class=cF0>CDHCPHeader</span><span class=cF7>)</span><span class=cF0> + </span><span class=cFE>4</span><span class=cF0>) </span><span class=cF2>// + 4?</span><span class=cF0>
<a name="l193"></a> </span><span class=cF7>{</span><span class=cF0>
<a name="l194"></a> NetErr(</span><span class=cF6>&quot;DHCP PARSE BEGIN: Failed, length too short.&quot;</span><span class=cF0>);
<a name="l195"></a> </span><span class=cF1>return</span><span class=cF0> -</span><span class=cFE>1</span><span class=cF0>;
<a name="l196"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l197"></a>
<a name="l198"></a> cookie = data + </span><span class=cF1>sizeof</span><span class=cF0>(CDHCPHeader);
<a name="l199"></a>
<a name="l200"></a> </span><span class=cF1>if</span><span class=cF0> (</span><span class=cF5>EndianU32</span><span class=cF7>(</span><span class=cF0>*cookie</span><span class=cF7>)</span><span class=cF0> != DHCP_COOKIE)
<a name="l201"></a> </span><span class=cF7>{</span><span class=cF0>
<a name="l202"></a> NetErr(</span><span class=cF6>&quot;DHCP PARSE BEGIN: Failed, cookie doesn't match DHCP-cookie.&quot;</span><span class=cF0>);
<a name="l203"></a> </span><span class=cF1>return</span><span class=cF0> -</span><span class=cFE>1</span><span class=cF0>;
<a name="l204"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l205"></a>
<a name="l206"></a> *header_out = data;
<a name="l207"></a> *data_inout = data + </span><span class=cF1>sizeof</span><span class=cF0>(CDHCPHeader) + </span><span class=cFE>4</span><span class=cF0>; </span><span class=cF2>// ?</span><span class=cF0>
<a name="l208"></a> *length_inout = length - </span><span class=cF1>sizeof</span><span class=cF0>(CDHCPHeader) + </span><span class=cFE>4</span><span class=cF0>; </span><span class=cF2>// ?..</span><span class=cF0>
<a name="l209"></a>
<a name="l210"></a> </span><span class=cF1>return</span><span class=cF0> </span><span class=cFE>0</span><span class=cF0>;
<a name="l211"></a>}
<a name="l212"></a>
<a name="l213"></a></span><span class=cF9>I64</span><span class=cF0> DHCPOptionParse(</span><span class=cF1>U8</span><span class=cF0> **data_inout, </span><span class=cF9>I64</span><span class=cF0> *length_inout, </span><span class=cF1>U8</span><span class=cF0> *type_out, </span><span class=cF1>U8</span><span class=cF0> *value_length_out, </span><span class=cF1>U8</span><span class=cF0> **value_out)
<a name="l214"></a>{
<a name="l215"></a> </span><span class=cF1>U8</span><span class=cF0> *data = *data_inout;
<a name="l216"></a> </span><span class=cF9>I64</span><span class=cF0> length = *length_inout;
<a name="l217"></a>
<a name="l218"></a> </span><span class=cF1>if</span><span class=cF0> (length &lt; </span><span class=cFE>2</span><span class=cF0> || length &lt; </span><span class=cFE>2</span><span class=cF0> + data[</span><span class=cFE>1</span><span class=cF0>]) </span><span class=cF2>// ??? what is the 1</span><span class=cF0>
<a name="l219"></a> </span><span class=cF7>{</span><span class=cF0>
<a name="l220"></a> NetErr(</span><span class=cF6>&quot;DHCP PARSE OPTION: Failed, length too short.&quot;</span><span class=cF0>);
<a name="l221"></a> </span><span class=cF1>return</span><span class=cF0> -</span><span class=cFE>1</span><span class=cF0>;
<a name="l222"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l223"></a>
<a name="l224"></a> </span><span class=cF1>if</span><span class=cF0> (data[</span><span class=cFE>0</span><span class=cF0>] == </span><span class=cFE>0xFF</span><span class=cF0>) </span><span class=cF2>// ahead, data[0] is type_out, so data[0] is perhaps usually type?</span><span class=cF0>
<a name="l225"></a> </span><span class=cF7>{</span><span class=cF0>
<a name="l226"></a> NetLog(</span><span class=cF6>&quot;DHCP PARSE OPTION: Saw 0xFF, returning 0.&quot;</span><span class=cF0>);
<a name="l227"></a> </span><span class=cF1>return</span><span class=cF0> </span><span class=cFE>0</span><span class=cF0>;
<a name="l228"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l229"></a>
<a name="l230"></a> *type_out = data[</span><span class=cFE>0</span><span class=cF0>];
<a name="l231"></a> *value_length_out = data[</span><span class=cFE>1</span><span class=cF0>];
<a name="l232"></a> *value_out = data + </span><span class=cFE>2</span><span class=cF0>;
<a name="l233"></a>
<a name="l234"></a> *data_inout = data + </span><span class=cFE>2</span><span class=cF0> + *value_length_out;
<a name="l235"></a> *length_inout = length - </span><span class=cFE>2</span><span class=cF0> + *value_length_out;
<a name="l236"></a>
<a name="l237"></a> </span><span class=cF1>return</span><span class=cF0> data[</span><span class=cFE>0</span><span class=cF0>]; </span><span class=cF2>// returns ... type?</span><span class=cF0>
<a name="l238"></a>}
<a name="l239"></a>
<a name="l240"></a></span><span class=cF9>I64</span><span class=cF0> DHCPOfferParse(</span><span class=cF9>U32</span><span class=cF0> xid, </span><span class=cF1>U8</span><span class=cF0> *data, </span><span class=cF9>I64</span><span class=cF0> length,
<a name="l241"></a> </span><span class=cF9>U32</span><span class=cF0> *your_ip_out,
<a name="l242"></a> </span><span class=cF9>U32</span><span class=cF0> *dns_ip_out,
<a name="l243"></a> </span><span class=cF9>U32</span><span class=cF0> *router_ip_out,
<a name="l244"></a> </span><span class=cF9>U32</span><span class=cF0> *subnet_mask_out)
<a name="l245"></a>{
<a name="l246"></a> CDHCPHeader *header;
<a name="l247"></a> </span><span class=cF9>I64</span><span class=cF0> error = DHCPBeginParse(&amp;data, &amp;length, &amp;header);
<a name="l248"></a> </span><span class=cF1>Bool</span><span class=cF0> have_type = </span><span class=cF3>FALSE</span><span class=cF0>;
<a name="l249"></a> </span><span class=cF1>Bool</span><span class=cF0> have_dns = </span><span class=cF3>FALSE</span><span class=cF0>;
<a name="l250"></a> </span><span class=cF1>Bool</span><span class=cF0> have_router = </span><span class=cF3>FALSE</span><span class=cF0>;
<a name="l251"></a> </span><span class=cF1>Bool</span><span class=cF0> have_subnet = </span><span class=cF3>FALSE</span><span class=cF0>;
<a name="l252"></a> </span><span class=cF1>U8</span><span class=cF0> type;
<a name="l253"></a> </span><span class=cF1>U8</span><span class=cF0> value_length;
<a name="l254"></a> </span><span class=cF1>U8</span><span class=cF0> *value;
<a name="l255"></a> </span><span class=cF9>U32</span><span class=cF0> address;
<a name="l256"></a>
<a name="l257"></a>
<a name="l258"></a> </span><span class=cF1>if</span><span class=cF0> (</span><span class=cF5>EndianU32</span><span class=cF7>(</span><span class=cF0>header-&gt;xid</span><span class=cF7>)</span><span class=cF0> != xid)
<a name="l259"></a> </span><span class=cF7>{</span><span class=cF0>
<a name="l260"></a> NetErr(</span><span class=cF6>&quot;DHCP PARSE OFFER: Failed, parsed and parameter Transaction IDs do not match.&quot;</span><span class=cF0>);
<a name="l261"></a> </span><span class=cF1>return</span><span class=cF0> -</span><span class=cFE>1</span><span class=cF0>;
<a name="l262"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l263"></a>
<a name="l264"></a> </span><span class=cF1>while</span><span class=cF0> (length)
<a name="l265"></a> </span><span class=cF7>{</span><span class=cF0>
<a name="l266"></a> error = DHCPOptionParse(&amp;data, &amp;length, &amp;type, &amp;value_length, &amp;value);
<a name="l267"></a>
<a name="l268"></a> </span><span class=cF1>if</span><span class=cF0> (error &lt; </span><span class=cFE>0</span><span class=cF0>)
<a name="l269"></a> {
<a name="l270"></a> NetErr(</span><span class=cF6>&quot;DHCP PARSE OFFER: Failed at DHCP Parse Option.&quot;</span><span class=cF0>);
<a name="l271"></a> </span><span class=cF1>return</span><span class=cF0> error;
<a name="l272"></a> }
<a name="l273"></a> </span><span class=cF1>if</span><span class=cF0> (error == </span><span class=cFE>0</span><span class=cF0>)
<a name="l274"></a> {
<a name="l275"></a> </span><span class=cF1>break</span><span class=cF0>;
<a name="l276"></a> }
<a name="l277"></a>
<a name="l278"></a> address = </span><span class=cF5>EndianU32</span><span class=cF0>(*value</span><span class=cF7>(</span><span class=cF9>U32</span><span class=cF0> *</span><span class=cF7>)</span><span class=cF0>);
<a name="l279"></a>
<a name="l280"></a> </span><span class=cF1>switch</span><span class=cF0> (type)
<a name="l281"></a> {
<a name="l282"></a> </span><span class=cF1>case</span><span class=cF0> DHCP_OPTION_MESSAGETYPE:
<a name="l283"></a> NetLog(</span><span class=cF6>&quot;DHCP PARSE OFFER: Parsed Option, Type MESSAGETYPE.&quot;</span><span class=cF0>);
<a name="l284"></a> </span><span class=cF1>if</span><span class=cF0> (value_length == </span><span class=cFE>1</span><span class=cF0> &amp;&amp; value[</span><span class=cFE>0</span><span class=cF0>] == DHCP_MESSAGETYPE_OFFER)
<a name="l285"></a> have_type = </span><span class=cF3>TRUE</span><span class=cF0>;
<a name="l286"></a> </span><span class=cF1>break</span><span class=cF0>;
<a name="l287"></a>
<a name="l288"></a> </span><span class=cF1>case</span><span class=cF0> DHCP_OPTION_DNS:
<a name="l289"></a> NetLog(</span><span class=cF6>&quot;DHCP PARSE OFFER: Parsed Option, Type DNS.&quot;</span><span class=cF0>);
<a name="l290"></a> </span><span class=cF1>if</span><span class=cF0> (value_length == </span><span class=cFE>4</span><span class=cF0>)
<a name="l291"></a> </span><span class=cF7>{</span><span class=cF0>
<a name="l292"></a> *dns_ip_out = address;
<a name="l293"></a> have_dns = </span><span class=cF3>TRUE</span><span class=cF0>;
<a name="l294"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l295"></a> </span><span class=cF1>break</span><span class=cF0>;
<a name="l296"></a>
<a name="l297"></a> </span><span class=cF1>case</span><span class=cF0> DHCP_OPTION_ROUTER:
<a name="l298"></a> NetLog(</span><span class=cF6>&quot;DHCP PARSE OFFER: Parsed Option, Type ROUTER.&quot;</span><span class=cF0>);
<a name="l299"></a> </span><span class=cF1>if</span><span class=cF0> (value_length == </span><span class=cFE>4</span><span class=cF0>)
<a name="l300"></a> </span><span class=cF7>{</span><span class=cF0>
<a name="l301"></a> *router_ip_out = address;
<a name="l302"></a> have_router = </span><span class=cF3>TRUE</span><span class=cF0>;
<a name="l303"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l304"></a> </span><span class=cF1>break</span><span class=cF0>;
<a name="l305"></a>
<a name="l306"></a> </span><span class=cF1>case</span><span class=cF0> DHCP_OPTION_SUBNET_MASK:
<a name="l307"></a> NetLog(</span><span class=cF6>&quot;DHCP PARSE OFFER: Parsed Option, Type SUBNET MASK.&quot;</span><span class=cF0>);
<a name="l308"></a> </span><span class=cF1>if</span><span class=cF0> (value_length == </span><span class=cFE>4</span><span class=cF0>)
<a name="l309"></a> </span><span class=cF7>{</span><span class=cF0>
<a name="l310"></a> *subnet_mask_out = address;
<a name="l311"></a> have_subnet = </span><span class=cF3>TRUE</span><span class=cF0>;
<a name="l312"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l313"></a> </span><span class=cF1>break</span><span class=cF0>;
<a name="l314"></a> }
<a name="l315"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l316"></a>
<a name="l317"></a> </span><span class=cF1>if</span><span class=cF0> (have_type &amp;&amp; have_dns &amp;&amp; have_subnet &amp;&amp; have_router)
<a name="l318"></a> </span><span class=cF7>{</span><span class=cF0>
<a name="l319"></a> *your_ip_out = </span><span class=cF5>EndianU32</span><span class=cF0>(header-&gt;your_ip);
<a name="l320"></a> NetLog(</span><span class=cF6>&quot;DHCP PARSE OFFER: Success, got your-ip from DHCP Header.&quot;</span><span class=cF0>);
<a name="l321"></a> </span><span class=cF1>return</span><span class=cF0> </span><span class=cFE>0</span><span class=cF0>;
<a name="l322"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l323"></a> </span><span class=cF1>else</span><span class=cF0>
<a name="l324"></a> </span><span class=cF7>{</span><span class=cF0>
<a name="l325"></a> NetErr(</span><span class=cF6>&quot;DHCP PARSE OFFER: Failed, did not have needed Options.&quot;</span><span class=cF0>);
<a name="l326"></a> NetErr(</span><span class=cF6>&quot; have_type: %Z&quot;</span><span class=cF0>, have_type, </span><span class=cF6>&quot;ST_FALSE_TRUE&quot;</span><span class=cF0>);
<a name="l327"></a> NetErr(</span><span class=cF6>&quot; have_dns: %Z&quot;</span><span class=cF0>, have_dns, </span><span class=cF6>&quot;ST_FALSE_TRUE&quot;</span><span class=cF0>);
<a name="l328"></a> NetErr(</span><span class=cF6>&quot; have_router: %Z&quot;</span><span class=cF0>, have_router, </span><span class=cF6>&quot;ST_FALSE_TRUE&quot;</span><span class=cF0>);
<a name="l329"></a> NetErr(</span><span class=cF6>&quot; have_subnet: %Z&quot;</span><span class=cF0>, have_subnet, </span><span class=cF6>&quot;ST_FALSE_TRUE&quot;</span><span class=cF0>);
<a name="l330"></a> </span><span class=cF1>return</span><span class=cF0> -</span><span class=cFE>1</span><span class=cF0>;
<a name="l331"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l332"></a>}
<a name="l333"></a>
<a name="l334"></a></span><span class=cF9>I64</span><span class=cF0> DHCPAckParse(</span><span class=cF9>U32</span><span class=cF0> xid, </span><span class=cF1>U8</span><span class=cF0> *data, </span><span class=cF9>I64</span><span class=cF0> length)
<a name="l335"></a>{
<a name="l336"></a> CDHCPHeader *header;
<a name="l337"></a> </span><span class=cF9>I64</span><span class=cF0> error = DHCPBeginParse(&amp;data, &amp;length, &amp;header);
<a name="l338"></a> </span><span class=cF1>U8</span><span class=cF0> type;
<a name="l339"></a> </span><span class=cF1>U8</span><span class=cF0> value_length;
<a name="l340"></a> </span><span class=cF1>U8</span><span class=cF0> *value;
<a name="l341"></a>
<a name="l342"></a> </span><span class=cF1>if</span><span class=cF0> (</span><span class=cF5>EndianU32</span><span class=cF7>(</span><span class=cF0>header-&gt;xid</span><span class=cF7>)</span><span class=cF0> != xid)
<a name="l343"></a> </span><span class=cF7>{</span><span class=cF0>
<a name="l344"></a> NetErr(</span><span class=cF6>&quot;DHCP PARSE ACK: Failed, parsed and parameter Transaction IDs do not match.&quot;</span><span class=cF0>);
<a name="l345"></a> </span><span class=cF1>return</span><span class=cF0> -</span><span class=cFE>1</span><span class=cF0>;
<a name="l346"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l347"></a>
<a name="l348"></a> </span><span class=cF1>while</span><span class=cF0> (length)
<a name="l349"></a> </span><span class=cF7>{</span><span class=cF0>
<a name="l350"></a> error = DHCPOptionParse(&amp;data, &amp;length, &amp;type, &amp;value_length, &amp;value);
<a name="l351"></a>
<a name="l352"></a> </span><span class=cF1>if</span><span class=cF0> (error &lt; </span><span class=cFE>0</span><span class=cF0>)
<a name="l353"></a> {
<a name="l354"></a> NetErr(</span><span class=cF6>&quot;DHCP PARSE ACK: Failed at DHCP Parse Option.&quot;</span><span class=cF0>);
<a name="l355"></a> </span><span class=cF1>return</span><span class=cF0> error;
<a name="l356"></a> }
<a name="l357"></a> </span><span class=cF1>if</span><span class=cF0> (error == </span><span class=cFE>0</span><span class=cF0>)
<a name="l358"></a> {
<a name="l359"></a> </span><span class=cF1>break</span><span class=cF0>;
<a name="l360"></a> }
<a name="l361"></a>
<a name="l362"></a> </span><span class=cF1>switch</span><span class=cF0> (type)
<a name="l363"></a> {
<a name="l364"></a> </span><span class=cF1>case</span><span class=cF0> DHCP_OPTION_MESSAGETYPE:
<a name="l365"></a> </span><span class=cF1>if</span><span class=cF0> (value_length == </span><span class=cFE>1</span><span class=cF0> &amp;&amp; value[</span><span class=cFE>0</span><span class=cF0>] == DHCP_MESSAGETYPE_ACK)
<a name="l366"></a> </span><span class=cF1>return</span><span class=cF0> </span><span class=cFE>0</span><span class=cF0>;
<a name="l367"></a> </span><span class=cF1>break</span><span class=cF0>;
<a name="l368"></a> }
<a name="l369"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l370"></a>
<a name="l371"></a> NetErr(</span><span class=cF6>&quot;DHCP PARSE ACK: Failed.&quot;</span><span class=cF0>);
<a name="l372"></a> </span><span class=cF1>return</span><span class=cF0> -</span><span class=cFE>1</span><span class=cF0>;
<a name="l373"></a>}
<a name="l374"></a>
<a name="l375"></a></span><span class=cF9>I64</span><span class=cF0> DHCPInnerConfigure(CUDPSocket *udp_socket,
<a name="l376"></a> </span><span class=cF9>U32</span><span class=cF0> *your_ip_out,
<a name="l377"></a> </span><span class=cF9>U32</span><span class=cF0> *dns_ip_out,
<a name="l378"></a> </span><span class=cF9>U32</span><span class=cF0> *router_ip_out,
<a name="l379"></a> </span><span class=cF9>U32</span><span class=cF0> *subnet_mask_out)
<a name="l380"></a>{
<a name="l381"></a> </span><span class=cF9>I64</span><span class=cF0> state = DHCP_STATE_CLIENT_START;
<a name="l382"></a> </span><span class=cF9>I64</span><span class=cF0> retries = </span><span class=cFE>0</span><span class=cF0>;
<a name="l383"></a> </span><span class=cF9>I64</span><span class=cF0> timeout = DHCP_TIMEOUT;
<a name="l384"></a> </span><span class=cF9>I64</span><span class=cF0> error = </span><span class=cFE>0</span><span class=cF0>;
<a name="l385"></a> </span><span class=cF9>U32</span><span class=cF0> xid;
<a name="l386"></a> </span><span class=cF9>U32</span><span class=cF0> dhcp_addr;
<a name="l387"></a> </span><span class=cF1>U8</span><span class=cF0> buffer[</span><span class=cFE>2048</span><span class=cF0>];
<a name="l388"></a> </span><span class=cF9>I64</span><span class=cF0> count;
<a name="l389"></a>
<a name="l390"></a> CSocketAddressIPV4 ipv4_addr;
<a name="l391"></a> CSocketAddressIPV4 ipv4_addr_in;
<a name="l392"></a>
<a name="l393"></a> </span><span class=cF2>//Shrine: setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO_MS, &amp;timeout, sizeof(timeout)))</span><span class=cF0>
<a name="l394"></a> udp_socket-&gt;receive_timeout_ms = timeout;
<a name="l395"></a>
<a name="l396"></a> ipv4_addr.family = AF_INET;
<a name="l397"></a> ipv4_addr.port = </span><span class=cF5>EndianU16</span><span class=cF0>(</span><span class=cFE>68</span><span class=cF0>);
<a name="l398"></a> ipv4_addr.address.address = INADDR_ANY;
<a name="l399"></a>
<a name="l400"></a> </span><span class=cF1>if</span><span class=cF0> (UDPSocketBind</span><span class=cF7>(</span><span class=cF0>udp_socket, &amp;ipv4_addr</span><span class=cF7>)</span><span class=cF0> &lt; </span><span class=cFE>0</span><span class=cF0>)
<a name="l401"></a> </span><span class=cF7>{</span><span class=cF0>
<a name="l402"></a> NetErr(</span><span class=cF6>&quot;DHCP CONFIGURE INNER: Failed to Bind UDP Socket.&quot;</span><span class=cF0>);
<a name="l403"></a> </span><span class=cF1>return</span><span class=cF0> -</span><span class=cFE>1</span><span class=cF0>;
<a name="l404"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l405"></a>
<a name="l406"></a> xid = DHCPTransactionBegin;
<a name="l407"></a>
<a name="l408"></a> </span><span class=cF1>while</span><span class=cF0> (state != DHCP_STATE_CLIENT_REQ_ACCEPTED)
<a name="l409"></a> </span><span class=cF7>{</span><span class=cF0>
<a name="l410"></a> </span><span class=cF1>switch</span><span class=cF0> (state)
<a name="l411"></a> {
<a name="l412"></a> </span><span class=cF1>case</span><span class=cF0> DHCP_STATE_CLIENT_START:
<a name="l413"></a> state = DHCP_STATE_CLIENT_DISCOVER;
<a name="l414"></a> retries = </span><span class=cFE>0</span><span class=cF0>;
<a name="l415"></a>
<a name="l416"></a> </span><span class=cF1>break</span><span class=cF0>;
<a name="l417"></a>
<a name="l418"></a> </span><span class=cF1>case</span><span class=cF0> DHCP_STATE_CLIENT_DISCOVER:
<a name="l419"></a> NetLog(</span><span class=cF6>&quot;DHCP CONFIGURE INNER: Trying Discover.&quot;</span><span class=cF0>);
<a name="l420"></a> error = DHCPDiscoverSend(xid);
<a name="l421"></a> </span><span class=cF1>if</span><span class=cF0> (error &lt; </span><span class=cFE>0</span><span class=cF0>)
<a name="l422"></a> </span><span class=cF7>{</span><span class=cF0>
<a name="l423"></a> NetErr(</span><span class=cF6>&quot;DHCP CONFIGURE INNER: Failed, DHCP Send Discover error.&quot;</span><span class=cF0>);
<a name="l424"></a> </span><span class=cF1>return</span><span class=cF0> error;
<a name="l425"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l426"></a>
<a name="l427"></a> count = UDPSocketReceiveFrom(udp_socket, buffer, </span><span class=cF1>sizeof</span><span class=cF7>(</span><span class=cF0>buffer</span><span class=cF7>)</span><span class=cF0>, &amp;ipv4_addr_in);
<a name="l428"></a>
<a name="l429"></a> </span><span class=cF1>if</span><span class=cF0> (count &gt; </span><span class=cFE>0</span><span class=cF0>)
<a name="l430"></a> </span><span class=cF7>{</span><span class=cF0> </span><span class=cF2>// 'Try a parse offer'</span><span class=cF0>
<a name="l431"></a> NetLog(</span><span class=cF6>&quot;DHCP CONFIGURE INNER: Trying Parse Offer.&quot;</span><span class=cF0>);
<a name="l432"></a> error = DHCPOfferParse(xid, buffer, count, your_ip_out, dns_ip_out, router_ip_out, subnet_mask_out);
<a name="l433"></a>
<a name="l434"></a> </span><span class=cF1>if</span><span class=cF0> (error &lt; </span><span class=cFE>0</span><span class=cF0>)
<a name="l435"></a> NetWarn(</span><span class=cF6>&quot;DHCP CONFIGURE INNER: Unsuccessful DHCP Parse Offer.&quot;</span><span class=cF0>);
<a name="l436"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l437"></a>
<a name="l438"></a> </span><span class=cF1>if</span><span class=cF0> (count &gt; </span><span class=cFE>0</span><span class=cF0> &amp;&amp; error &gt;= </span><span class=cFE>0</span><span class=cF0>)
<a name="l439"></a> </span><span class=cF7>{</span><span class=cF0>
<a name="l440"></a> dhcp_addr = </span><span class=cF5>EndianU32</span><span class=cF0>(ipv4_addr_in.address.address);
<a name="l441"></a> state = DHCP_STATE_CLIENT_REQUEST;
<a name="l442"></a> retries = </span><span class=cFE>0</span><span class=cF0>;
<a name="l443"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l444"></a> </span><span class=cF1>else</span><span class=cF0> </span><span class=cF1>if</span><span class=cF0> (++retries == DHCP_MAX_RETRIES)
<a name="l445"></a> </span><span class=cF7>{</span><span class=cF0>
<a name="l446"></a> NetErr(</span><span class=cF6>&quot;DHCP CONFIGURE INNER: Failed, hit max retries in DHCP DISCOVER state.&quot;</span><span class=cF0>);
<a name="l447"></a> </span><span class=cF1>return</span><span class=cF0> -</span><span class=cFE>1</span><span class=cF0>;
<a name="l448"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l449"></a>
<a name="l450"></a> </span><span class=cF1>break</span><span class=cF0>;
<a name="l451"></a>
<a name="l452"></a> </span><span class=cF1>case</span><span class=cF0> DHCP_STATE_CLIENT_REQUEST:
<a name="l453"></a> NetLog(</span><span class=cF6>&quot;DHCP CONFIGURE INNER: Trying Send Request.&quot;</span><span class=cF0>);
<a name="l454"></a> error = DHCPRequestSend(xid, *your_ip_out, dhcp_addr);
<a name="l455"></a>
<a name="l456"></a> </span><span class=cF1>if</span><span class=cF0> (error &lt; </span><span class=cFE>0</span><span class=cF0>)
<a name="l457"></a> </span><span class=cF7>{</span><span class=cF0>
<a name="l458"></a> NetErr(</span><span class=cF6>&quot;DHCP CONFIGURE INNER: Failed, unsuccessful DHCP Send Request.&quot;</span><span class=cF0>);
<a name="l459"></a> </span><span class=cF1>return</span><span class=cF0> error;
<a name="l460"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l461"></a>
<a name="l462"></a> count = UDPSocketReceiveFrom(udp_socket, buffer, </span><span class=cF1>sizeof</span><span class=cF7>(</span><span class=cF0>buffer</span><span class=cF7>)</span><span class=cF0>, &amp;ipv4_addr_in);
<a name="l463"></a>
<a name="l464"></a> </span><span class=cF1>if</span><span class=cF0> (count &gt; </span><span class=cFE>0</span><span class=cF0>)
<a name="l465"></a> </span><span class=cF7>{</span><span class=cF0> </span><span class=cF2>// 'Try parse Ack'</span><span class=cF0>
<a name="l466"></a> error = DHCPAckParse(xid, buffer, count);
<a name="l467"></a>
<a name="l468"></a> </span><span class=cF1>if</span><span class=cF0> (error &lt; </span><span class=cFE>0</span><span class=cF0>)
<a name="l469"></a> NetWarn(</span><span class=cF6>&quot;DHCP CONFIGURE INNER: Unsuccessful DHCP Parse Ack.&quot;</span><span class=cF0>);
<a name="l470"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l471"></a>
<a name="l472"></a> </span><span class=cF1>if</span><span class=cF0> (count &gt; </span><span class=cFE>0</span><span class=cF0> &amp;&amp; error &gt;= </span><span class=cFE>0</span><span class=cF0>)
<a name="l473"></a> </span><span class=cF7>{</span><span class=cF0>
<a name="l474"></a> dhcp_addr = </span><span class=cF5>EndianU32</span><span class=cF0>(ipv4_addr_in.address.address);
<a name="l475"></a> state = DHCP_STATE_CLIENT_REQ_ACCEPTED;
<a name="l476"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l477"></a> </span><span class=cF1>else</span><span class=cF0> </span><span class=cF1>if</span><span class=cF0> (++retries == DHCP_MAX_RETRIES)
<a name="l478"></a> </span><span class=cF7>{</span><span class=cF0>
<a name="l479"></a> NetErr(</span><span class=cF6>&quot;DHCP CONFIGURE INNER: Failed, hit max retries in DHCP REQUEST state.&quot;</span><span class=cF0>);
<a name="l480"></a> </span><span class=cF1>return</span><span class=cF0> -</span><span class=cFE>1</span><span class=cF0>;
<a name="l481"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l482"></a>
<a name="l483"></a> </span><span class=cF1>break</span><span class=cF0>;
<a name="l484"></a> }
<a name="l485"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l486"></a>
<a name="l487"></a> </span><span class=cF1>return</span><span class=cF0> state;
<a name="l488"></a>}
<a name="l489"></a>
<a name="l490"></a></span><span class=cF9>I64</span><span class=cF0> DHCPConfigure()
<a name="l491"></a>{
<a name="l492"></a> CUDPSocket *udp_socket = UDPSocket(AF_INET);
<a name="l493"></a> CIPV4Address address;
<a name="l494"></a> </span><span class=cF9>U32</span><span class=cF0> your_ip;
<a name="l495"></a> </span><span class=cF9>U32</span><span class=cF0> dns_ip;
<a name="l496"></a> </span><span class=cF9>U32</span><span class=cF0> router_ip;
<a name="l497"></a> </span><span class=cF9>U32</span><span class=cF0> subnet_mask;
<a name="l498"></a> </span><span class=cF9>I64</span><span class=cF0> state = DHCPInnerConfigure(udp_socket, &amp;your_ip, &amp;dns_ip, &amp;router_ip, &amp;subnet_mask);
<a name="l499"></a>
<a name="l500"></a> UDPSocketClose(udp_socket);
<a name="l501"></a>
<a name="l502"></a> </span><span class=cF1>if</span><span class=cF0> (state == DHCP_STATE_CLIENT_REQ_ACCEPTED)
<a name="l503"></a> </span><span class=cF7>{</span><span class=cF0>
<a name="l504"></a> address.address = </span><span class=cF5>EndianU32</span><span class=cF0>(your_ip);
<a name="l505"></a> NetLog(</span><span class=cF6>&quot;$BG,2$$FG,15$DHCP CONFIGURE: Obtained IPV4 Address! : %s $BG$$FG$&quot;</span><span class=cF0>, NetworkToPresentation</span><span class=cF7>(</span><span class=cF0>AF_INET, &amp;address</span><span class=cF7>)</span><span class=cF0>);
<a name="l506"></a>
<a name="l507"></a> IPV4AddressSet(your_ip);
<a name="l508"></a> IPV4SubnetSet(router_ip, subnet_mask);
<a name="l509"></a> DNSResolverIPV4Set(dns_ip);
<a name="l510"></a> </span><span class=cF1>return</span><span class=cF0> </span><span class=cFE>0</span><span class=cF0>;
<a name="l511"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l512"></a> </span><span class=cF1>else</span><span class=cF0>
<a name="l513"></a> </span><span class=cF7>{</span><span class=cF0>
<a name="l514"></a> NetErr(</span><span class=cF6>&quot;$BG,4$DHCP CONFIGURE: Failed, incorrect state.$BG$&quot;</span><span class=cF0>);
<a name="l515"></a> </span><span class=cF1>return</span><span class=cF0> -</span><span class=cFE>1</span><span class=cF0>;
<a name="l516"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l517"></a>}
<a name="l518"></a>
<a name="l519"></a>
<a name="l520"></a></span><span class=cF1>U0</span><span class=cF0> NetConfigure()
<a name="l521"></a>{
<a name="l522"></a> </span><span class=cF9>I64</span><span class=cF0> error;
<a name="l523"></a>
<a name="l524"></a> NetLog(</span><span class=cF6>&quot;\n==== Configuring Network. ====\n&quot;</span><span class=cF0>);
<a name="l525"></a> error = DHCPConfigure;
<a name="l526"></a>
<a name="l527"></a> </span><span class=cF1>if</span><span class=cF0> (error &lt; </span><span class=cFE>0</span><span class=cF0>)
<a name="l528"></a> NetErr(</span><span class=cF6>&quot;==== Network Configure Failed ====&quot;</span><span class=cF0>);
<a name="l529"></a> </span><span class=cF1>else</span><span class=cF0>
<a name="l530"></a> NetLog(</span><span class=cF6>&quot;$BG,2$$FG,15$==== Network Configure Success ====$FG$$BG$&quot;</span><span class=cF0>);
<a name="l531"></a>}
<a name="l532"></a>
<a name="l533"></a></span><span class=cF1>U0</span><span class=cF0> NetRep()
<a name="l534"></a>{
<a name="l535"></a> </span><span class=cF6>&quot;\n$LTGREEN$Network Report:$FG$\n\n&quot;</span><span class=cF0>;
<a name="l536"></a> UDPRep;
<a name="l537"></a> TCPRep;
<a name="l538"></a> DNSRep;
<a name="l539"></a> ARPRep;
<a name="l540"></a> IPV4Rep;
<a name="l541"></a>}</span></pre></body>
</html>
Reference in a new issue View git blame Copy permalink