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< a name = "l1" > < / a > < span class = cF2 > //www.networksorcery.com/enp/protocol/dhcp.htm< / span > < span class = cF0 >
< a name = "l2" > < / a >
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< 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 >
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< a name = "l4" > < / a >
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< 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 >
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< a name = "l9" > < / a >
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< 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 >
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< a name = "l14" > < / a >
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< 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 >
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< a name = "l19" > < / a >
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< a name = "l20" > < / a > #< / span > < span class = cF1 > define< / span > < span class = cF0 > DHCP_COOKIE < / span > < span class = cFE > 0x63825363< / span > < span class = cF0 >
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< a name = "l21" > < / a >
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< 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 >
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< 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 >
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< 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 >
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< a name = "l29" > < / a >
< a name = "l30" > < / a > < / span > < span class = cF1 > class< / span > < span class = cF0 > CDHCPHeader
< a name = "l31" > < / a > {
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< 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 >
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< 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 > {
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< 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 > ;
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< 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 > {
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< 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 > ;
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< 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 > {
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< a name = "l77" > < / a > < / span > < span class = cF1 > return< / span > < span class = cF0 > < / span > < span class = cF5 > RandU32< / span > < span class = cF0 > ;
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< 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 > {
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< 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;
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< a name = "l86" > < / a >
< a name = "l87" > < / a >
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< a name = "l88" > < / a > de_index = UDPPacketAllocate(& 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 < < / 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 > " DHCP SEND DISCOVER: Failed, UDP Packet Allocate error." < / 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 >
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< a name = "l99" > < / a >
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< 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 > );
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< a name = "l102" > < / a >
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< a name = "l103" > < / a > dhcp-> opcode = DHCP_OPCODE_BOOTREQUEST;
< a name = "l104" > < / a > dhcp-> hw_type = HTYPE_ETHERNET;
< a name = "l105" > < / a > dhcp-> hw_addr_len = HLEN_ETHERNET;
< a name = "l106" > < / a > dhcp-> hops = < / span > < span class = cFE > 0< / span > < span class = cF0 > ;
< a name = "l107" > < / a > dhcp-> xid = < / span > < span class = cF5 > EndianU32< / span > < span class = cF0 > (xid);
< a name = "l108" > < / a > dhcp-> seconds = < / span > < span class = cFE > 0< / span > < span class = cF0 > ;
< a name = "l109" > < / a > dhcp-> 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-> client_ip = < / span > < span class = cFE > 0< / span > < span class = cF0 > ;
< a name = "l111" > < / a > dhcp-> your_ip = < / span > < span class = cFE > 0< / span > < span class = cF0 > ;
< a name = "l112" > < / a > dhcp-> server_ip = < / span > < span class = cFE > 0< / span > < span class = cF0 > ;
< a name = "l113" > < / a > dhcp-> 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-> client_hw_addr, EthernetMACGet, MAC_ADDRESS_LENGTH);
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< a name = "l115" > < / a >
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< a name = "l116" > < / a > opts = dhcp_frame + < / span > < span class = cF1 > sizeof< / span > < span class = cF0 > (CDHCPHeader);
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< a name = "l117" > < / a >
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< a name = "l118" > < / a > opts-> cookie = < / span > < span class = cF5 > EndianU32< / span > < span class = cF0 > (DHCP_COOKIE);
< a name = "l119" > < / a > opts-> message_type = DHCP_OPTION_MESSAGETYPE;
< a name = "l120" > < / a > opts-> message_length = < / span > < span class = cFE > 1< / span > < span class = cF0 > ;
< a name = "l121" > < / a > opts-> message = DHCP_MESSAGETYPE_DISCOVER;
< a name = "l122" > < / a > opts-> param_req_list_type = DHCP_OPTION_PARAMLIST;
< a name = "l123" > < / a > opts-> param_req_list_length = < / span > < span class = cFE > 4< / span > < span class = cF0 > ;
< a name = "l124" > < / a > opts-> param_req_list[< / span > < span class = cFE > 0< / span > < span class = cF0 > ] = DHCP_OPTION_SUBNET_MASK;
< a name = "l125" > < / a > opts-> param_req_list[< / span > < span class = cFE > 1< / span > < span class = cF0 > ] = DHCP_OPTION_ROUTER;
< a name = "l126" > < / a > opts-> param_req_list[< / span > < span class = cFE > 2< / span > < span class = cF0 > ] = DHCP_OPTION_DNS;
< a name = "l127" > < / a > opts-> param_req_list[< / span > < span class = cFE > 3< / span > < span class = cF0 > ] = DHCP_OPTION_DOMAIN_NAME;
< a name = "l128" > < / a > opts-> < / 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 >
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< a name = "l129" > < / a >
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< a name = "l130" > < / a > UDPPacketFinish(de_index);
< a name = "l131" > < / a > < / span > < span class = cF1 > return< / span > < span class = cF0 > de_index;
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< 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 > {
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< 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;
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< a name = "l140" > < / a >
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< a name = "l141" > < / a > de_index = UDPPacketAllocate(& 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 < < / 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 > " DHCP SEND REQUEST: Failed, UDP Packet Allocate error." < / span > < span class = cF0 > );
< a name = "l150" > < / a > < / span > < span class = cF7 > }< / span > < span class = cF0 >
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< a name = "l151" > < / a >
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< 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 > );
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< a name = "l154" > < / a >
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< a name = "l155" > < / a > dhcp-> opcode = DHCP_OPCODE_BOOTREQUEST;
< a name = "l156" > < / a > dhcp-> hw_type = HTYPE_ETHERNET;
< a name = "l157" > < / a > dhcp-> hw_addr_len = HLEN_ETHERNET;
< a name = "l158" > < / a > dhcp-> hops = < / span > < span class = cFE > 0< / span > < span class = cF0 > ;
< a name = "l159" > < / a > dhcp-> xid = < / span > < span class = cF5 > EndianU32< / span > < span class = cF0 > (xid);
< a name = "l160" > < / a > dhcp-> seconds = < / span > < span class = cFE > 0< / span > < span class = cF0 > ;
< a name = "l161" > < / a > dhcp-> 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-> client_ip = < / span > < span class = cFE > 0< / span > < span class = cF0 > ;
< a name = "l163" > < / a > dhcp-> your_ip = < / span > < span class = cFE > 0< / span > < span class = cF0 > ;
< a name = "l164" > < / a > dhcp-> server_ip = < / span > < span class = cF5 > EndianU32< / span > < span class = cF0 > (server_ip);
< a name = "l165" > < / a > dhcp-> 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-> client_hw_addr, EthernetMACGet, MAC_ADDRESS_LENGTH);
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< a name = "l167" > < / a >
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< a name = "l168" > < / a > opts = dhcp_frame + < / span > < span class = cF1 > sizeof< / span > < span class = cF0 > (CDHCPHeader);
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< a name = "l169" > < / a >
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< a name = "l170" > < / a > opts-> cookie = < / span > < span class = cF5 > EndianU32< / span > < span class = cF0 > (DHCP_COOKIE);
< a name = "l171" > < / a > opts-> message_type = DHCP_OPTION_MESSAGETYPE;
< a name = "l172" > < / a > opts-> message_length = < / span > < span class = cFE > 1< / span > < span class = cF0 > ;
< a name = "l173" > < / a > opts-> message = DHCP_MESSAGETYPE_REQUEST;
< a name = "l174" > < / a > opts-> requested_ip_type = DHCP_OPTION_REQUESTED_IP;
< a name = "l175" > < / a > opts-> requested_ip_length = < / span > < span class = cFE > 4< / span > < span class = cF0 > ;
< a name = "l176" > < / a > opts-> requested_ip = < / span > < span class = cF5 > EndianU32< / span > < span class = cF0 > (requested_ip);
< a name = "l177" > < / a > opts-> server_id_type = DHCP_OPTION_SERVER_ID;
< a name = "l178" > < / a > opts-> server_id_length = < / span > < span class = cFE > 4< / span > < span class = cF0 > ;
< a name = "l179" > < / a > opts-> server_id = < / span > < span class = cF5 > EndianU32< / span > < span class = cF0 > (server_ip);
< a name = "l180" > < / a > opts-> < / span > < span class = cF1 > end< / span > < span class = cF0 > = < / span > < span class = cFE > 0xFF< / span > < span class = cF0 > ;
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< a name = "l181" > < / a >
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< 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 > ;
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< 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 > {
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< 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;
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< a name = "l191" > < / a >
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< a name = "l192" > < / a > < / span > < span class = cF1 > if< / span > < span class = cF0 > (length < < / 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 > " DHCP PARSE BEGIN: Failed, length too short." < / 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 >
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< a name = "l197" > < / a >
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< a name = "l198" > < / a > cookie = data + < / span > < span class = cF1 > sizeof< / span > < span class = cF0 > (CDHCPHeader);
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< a name = "l199" > < / a >
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< 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 > " DHCP PARSE BEGIN: Failed, cookie doesn't match DHCP-cookie." < / 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 >
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< a name = "l205" > < / a >
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< 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 >
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< a name = "l209" > < / a >
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< a name = "l210" > < / a > < / span > < span class = cF1 > return< / span > < span class = cF0 > < / span > < span class = cFE > 0< / span > < span class = cF0 > ;
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< 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 > {
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< 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;
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< a name = "l217" > < / a >
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< a name = "l218" > < / a > < / span > < span class = cF1 > if< / span > < span class = cF0 > (length < < / span > < span class = cFE > 2< / span > < span class = cF0 > || length < < / 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 > " DHCP PARSE OPTION: Failed, length too short." < / 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 >
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< a name = "l223" > < / a >
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< 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 > " DHCP PARSE OPTION: Saw 0xFF, returning 0." < / 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 >
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< a name = "l229" > < / a >
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< 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 > ;
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< a name = "l233" > < / a >
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< 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;
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< a name = "l236" > < / a >
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< 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 >
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< 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,
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< 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)
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< a name = "l245" > < / a > {
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< a name = "l246" > < / a > CDHCPHeader *header;
< a name = "l247" > < / a > < / span > < span class = cF9 > I64< / span > < span class = cF0 > error = DHCPBeginParse(& data, & length, & 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 >
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< a name = "l257" > < / a >
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< 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-> 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 > " DHCP PARSE OFFER: Failed, parsed and parameter Transaction IDs do not match." < / 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 >
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< a name = "l263" > < / a >
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< 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(& data, & length, & type, & value_length, & value);
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< a name = "l267" > < / a >
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< a name = "l268" > < / a > < / span > < span class = cF1 > if< / span > < span class = cF0 > (error < < / span > < span class = cFE > 0< / span > < span class = cF0 > )
< a name = "l269" > < / a > {
< a name = "l270" > < / a > NetErr(< / span > < span class = cF6 > " DHCP PARSE OFFER: Failed at DHCP Parse Option." < / 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 > }
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< a name = "l277" > < / a >
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< 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 > );
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< a name = "l279" > < / a >
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< 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 > " DHCP PARSE OFFER: Parsed Option, Type MESSAGETYPE." < / 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 > & & 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 > ;
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< a name = "l287" > < / a >
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< 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 > " DHCP PARSE OFFER: Parsed Option, Type DNS." < / 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 > ;
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< a name = "l296" > < / a >
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< 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 > " DHCP PARSE OFFER: Parsed Option, Type ROUTER." < / 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 > ;
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< a name = "l305" > < / a >
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< 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 > " DHCP PARSE OFFER: Parsed Option, Type SUBNET MASK." < / 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 >
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< a name = "l316" > < / a >
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< a name = "l317" > < / a > < / span > < span class = cF1 > if< / span > < span class = cF0 > (have_type & & have_dns & & have_subnet & & 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-> your_ip);
< a name = "l320" > < / a > NetLog(< / span > < span class = cF6 > " DHCP PARSE OFFER: Success, got your-ip from DHCP Header." < / 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 > " DHCP PARSE OFFER: Failed, did not have needed Options." < / span > < span class = cF0 > );
< a name = "l326" > < / a > NetErr(< / span > < span class = cF6 > " have_type: %Z" < / span > < span class = cF0 > , have_type, < / span > < span class = cF6 > " ST_FALSE_TRUE" < / span > < span class = cF0 > );
< a name = "l327" > < / a > NetErr(< / span > < span class = cF6 > " have_dns: %Z" < / span > < span class = cF0 > , have_dns, < / span > < span class = cF6 > " ST_FALSE_TRUE" < / span > < span class = cF0 > );
< a name = "l328" > < / a > NetErr(< / span > < span class = cF6 > " have_router: %Z" < / span > < span class = cF0 > , have_router, < / span > < span class = cF6 > " ST_FALSE_TRUE" < / span > < span class = cF0 > );
< a name = "l329" > < / a > NetErr(< / span > < span class = cF6 > " have_subnet: %Z" < / span > < span class = cF0 > , have_subnet, < / span > < span class = cF6 > " ST_FALSE_TRUE" < / 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 >
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< 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 > {
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< a name = "l336" > < / a > CDHCPHeader *header;
< a name = "l337" > < / a > < / span > < span class = cF9 > I64< / span > < span class = cF0 > error = DHCPBeginParse(& data, & length, & 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;
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< a name = "l341" > < / a >
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< 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-> 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 > " DHCP PARSE ACK: Failed, parsed and parameter Transaction IDs do not match." < / 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 >
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< a name = "l347" > < / a >
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< 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(& data, & length, & type, & value_length, & value);
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< a name = "l351" > < / a >
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< a name = "l352" > < / a > < / span > < span class = cF1 > if< / span > < span class = cF0 > (error < < / span > < span class = cFE > 0< / span > < span class = cF0 > )
< a name = "l353" > < / a > {
< a name = "l354" > < / a > NetErr(< / span > < span class = cF6 > " DHCP PARSE ACK: Failed at DHCP Parse Option." < / 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 > }
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< a name = "l361" > < / a >
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< 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 > & & 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 >
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< a name = "l370" > < / a >
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< a name = "l371" > < / a > NetErr(< / span > < span class = cF6 > " DHCP PARSE ACK: Failed." < / 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 > ;
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< 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,
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< 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)
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< a name = "l380" > < / a > {
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< 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;
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< a name = "l389" > < / a >
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< a name = "l390" > < / a > CSocketAddressIPV4 ipv4_addr;
< a name = "l391" > < / a > CSocketAddressIPV4 ipv4_addr_in;
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< a name = "l392" > < / a >
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< a name = "l393" > < / a > < / span > < span class = cF2 > //Shrine: setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO_MS, & timeout, sizeof(timeout)))< / span > < span class = cF0 >
< a name = "l394" > < / a > udp_socket-> receive_timeout_ms = timeout;
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< a name = "l395" > < / a >
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< 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;
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< a name = "l399" > < / a >
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< a name = "l400" > < / a > < / span > < span class = cF1 > if< / span > < span class = cF0 > (UDPSocketBind< / span > < span class = cF7 > (< / span > < span class = cF0 > udp_socket, & ipv4_addr< / span > < span class = cF7 > )< / span > < span class = cF0 > < < / 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 > " DHCP CONFIGURE INNER: Failed to Bind UDP Socket." < / 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 >
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< a name = "l405" > < / a >
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< a name = "l406" > < / a > xid = DHCPTransactionBegin;
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< a name = "l407" > < / a >
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< 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 > ;
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< a name = "l415" > < / a >
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< a name = "l416" > < / a > < / span > < span class = cF1 > break< / span > < span class = cF0 > ;
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< a name = "l417" > < / a >
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< 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 > " DHCP CONFIGURE INNER: Trying Discover." < / 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 < < / 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 > " DHCP CONFIGURE INNER: Failed, DHCP Send Discover error." < / 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 >
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< a name = "l426" > < / a >
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< 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 > , & ipv4_addr_in);
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< a name = "l428" > < / a >
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< a name = "l429" > < / a > < / span > < span class = cF1 > if< / span > < span class = cF0 > (count > < / 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 > " DHCP CONFIGURE INNER: Trying Parse Offer." < / 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);
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< a name = "l433" > < / a >
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< a name = "l434" > < / a > < / span > < span class = cF1 > if< / span > < span class = cF0 > (error < < / span > < span class = cFE > 0< / span > < span class = cF0 > )
< a name = "l435" > < / a > NetWarn(< / span > < span class = cF6 > " DHCP CONFIGURE INNER: Unsuccessful DHCP Parse Offer." < / span > < span class = cF0 > );
< a name = "l436" > < / a > < / span > < span class = cF7 > }< / span > < span class = cF0 >
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< a name = "l437" > < / a >
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< a name = "l438" > < / a > < / span > < span class = cF1 > if< / span > < span class = cF0 > (count > < / span > < span class = cFE > 0< / span > < span class = cF0 > & & error > = < / 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 > " DHCP CONFIGURE INNER: Failed, hit max retries in DHCP DISCOVER state." < / 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 >
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< a name = "l449" > < / a >
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< a name = "l450" > < / a > < / span > < span class = cF1 > break< / span > < span class = cF0 > ;
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< a name = "l451" > < / a >
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< 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 > " DHCP CONFIGURE INNER: Trying Send Request." < / span > < span class = cF0 > );
< a name = "l454" > < / a > error = DHCPRequestSend(xid, *your_ip_out, dhcp_addr);
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< a name = "l455" > < / a >
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< a name = "l456" > < / a > < / span > < span class = cF1 > if< / span > < span class = cF0 > (error < < / 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 > " DHCP CONFIGURE INNER: Failed, unsuccessful DHCP Send Request." < / 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 >
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< a name = "l461" > < / a >
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< 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 > , & ipv4_addr_in);
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< a name = "l463" > < / a >
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< a name = "l464" > < / a > < / span > < span class = cF1 > if< / span > < span class = cF0 > (count > < / 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);
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< a name = "l467" > < / a >
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< a name = "l468" > < / a > < / span > < span class = cF1 > if< / span > < span class = cF0 > (error < < / span > < span class = cFE > 0< / span > < span class = cF0 > )
< a name = "l469" > < / a > NetWarn(< / span > < span class = cF6 > " DHCP CONFIGURE INNER: Unsuccessful DHCP Parse Ack." < / span > < span class = cF0 > );
< a name = "l470" > < / a > < / span > < span class = cF7 > }< / span > < span class = cF0 >
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< a name = "l471" > < / a >
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< a name = "l472" > < / a > < / span > < span class = cF1 > if< / span > < span class = cF0 > (count > < / span > < span class = cFE > 0< / span > < span class = cF0 > & & error > = < / 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 > " DHCP CONFIGURE INNER: Failed, hit max retries in DHCP REQUEST state." < / 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 >
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< a name = "l482" > < / a >
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< 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 >
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< a name = "l486" > < / a >
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< a name = "l487" > < / a > < / span > < span class = cF1 > return< / span > < span class = cF0 > state;
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< 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 > {
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< 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, & your_ip, & dns_ip, & router_ip, & subnet_mask);
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< a name = "l499" > < / a >
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< a name = "l500" > < / a > UDPSocketClose(udp_socket);
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< a name = "l501" > < / a >
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< 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 > " $BG,2$$FG,15$DHCP CONFIGURE: Obtained IPV4 Address! : %s $BG$$FG$" < / span > < span class = cF0 > , NetworkToPresentation< / span > < span class = cF7 > (< / span > < span class = cF0 > AF_INET, & address< / span > < span class = cF7 > )< / span > < span class = cF0 > );
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< a name = "l506" > < / a >
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< 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 > " $BG,4$DHCP CONFIGURE: Failed, incorrect state.$BG$" < / 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 >
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< 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 > {
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< a name = "l522" > < / a > < / span > < span class = cF9 > I64< / span > < span class = cF0 > error;
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< a name = "l523" > < / a >
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< a name = "l524" > < / a > NetLog(< / span > < span class = cF6 > " \n==== Configuring Network. ====\n" < / span > < span class = cF0 > );
< a name = "l525" > < / a > error = DHCPConfigure;
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< a name = "l526" > < / a >
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< a name = "l527" > < / a > < / span > < span class = cF1 > if< / span > < span class = cF0 > (error < < / span > < span class = cFE > 0< / span > < span class = cF0 > )
< a name = "l528" > < / a > NetErr(< / span > < span class = cF6 > " ==== Network Configure Failed ====" < / 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 > " $BG,2$$FG,15$==== Network Configure Success ====$FG$$BG$" < / span > < span class = cF0 > );
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< a name = "l531" > < / a > }
< a name = "l532" > < / a >
< a name = "l533" > < / a > < / span > < span class = cF1 > U0< / span > < span class = cF0 > NetRep()
< a name = "l534" > < / a > {
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< a name = "l535" > < / a > < / span > < span class = cF6 > " \n$LTGREEN$Network Report:$FG$\n\n" < / 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;
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< a name = "l541" > < / a > }< / span > < / pre > < / body >
< / html >
