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#define MAX_DATA 1024 |
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enum dhcpfieldtype {string, ip, multi, offset, time, number, opt_switch, node_type, bin}; |
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/* |
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* string = \0 terminated char[] |
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* ip = 4 byte IP Address |
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* multi = vendor defined data with multiple entry pairs (length, data)+ |
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* time = 4 byte unsinged int in seconds |
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* offset = 32-bit int, positive means east of the meridian, negative west |
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* number = unsigned int |
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* opt_switch = 0/1 switch |
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* node_type = 0x1 B-node |
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* 0x2 P-node |
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* 0x4 M-node |
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* 0x8 H-node |
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* bin = don't interpret at all - char |
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*/ |
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struct dhcpoption { |
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char name[50]; |
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enum dhcpfieldtype type; |
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unsigned char min_len; |
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unsigned char max_len; |
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} DHCPOPT [256]; |
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DHCPOPT[0] = {"Subnet Mask", ip, 4, 4}; |
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DHCPOPT[1] = {"Time Offset", offset, 4, 4}; |
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DHCPOPT[2] = {"Router Option", ip, 4, 0}; |
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DHCPOPT[3] = {"Time Server Option", ip, 4, 0}; |
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DHCPOPT[4] = {"Name Server Option", ip, 4, 0}; |
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DHCPOPT[5] = {"Domain Name Server Option", ip, 4, 0}; |
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DHCPOPT[6] = {"Log Server Option", ip, 4, 0}; |
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DHCPOPT[7] = {"Cookie Server Option", ip, 4, 0}; |
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DHCPOPT[8] = {"LPR Server Option", ip, 4, 0}; |
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DHCPOPT[9] = {"Impress Server Option", ip, 4, 0}; |
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DHCPOPT[10] = {"Resource Location Server Option", ip, 4, 0}; |
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DHCPOPT[11] = {"Host Name Option", string, 1, 0}; |
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DHCPOPT[12] = {"Boot File Size Option", number, 2, 2}; // unsigned 16-bit integer |
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DHCPOPT[13] = {"Merit Dump File", string, 1, 0}; |
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DHCPOPT[14] = {"Domain Name", string, 1, 0}; |
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DHCPOPT[15] = {"Swap Server", ip, 4, 4}; |
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DHCPOPT[16] = {"Root Path", string, 1, 0}; |
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DHCPOPT[17] = {"Extensions Path", string, 1, 0}; |
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DHCPOPT[18] = {"IP Forwarding Enable/Disable Option", opt_switch, 1, 1}; |
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DHCPOPT[19] = {"Non-Local Source Routing Enable/Disable Option", opt_switch, 1, 1}; |
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DHCPOPT[20] = {"Policy Filter Option", ip, 8, 0}; |
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DHCPOPT[21] = {"Maximum Datagram Reassembly Size", number, 2, 2}; |
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DHCPOPT[22] = {"Default IP Time-to-live", number, 1, 1}; |
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DHCPOPT[23] = {"Path MTU Aging Timeout Option", time, 4, 4}; |
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DHCPOPT[24] = {"Path MTU Plateau Table Option", number, 2, 0}; // minimum mtu 68 |
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DHCPOPT[25] = {"Interface MTU Option", number, 2, 2}; |
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DHCPOPT[26] = {"All Subnets are Local Option", opt_switch, 1, 1}; |
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DHCPOPT[27] = {"Broadcast Address Option", ip, 4, 4}; |
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DHCPOPT[28] = {"Perform Mask Discovery Option", opt_switch, 1, 1}; |
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DHCPOPT[29] = {"Mask Supplier Option", opt_switch, 1, 1}; |
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DHCPOPT[30] = {"Perform Router Discovery Option", opt_switch, 1, 1}; |
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DHCPOPT[31] = {"Router Solicitation Address Option", ip, 4, 4}; |
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DHCPOPT[32] = {"Static Route Option", ip, 8, 0}; // Default Route 0.0.0.0 is illegal here |
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DHCPOPT[33] = {"Trailer Encapsulation Option", opt_switch, 1, 1}; |
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DHCPOPT[34] = {"ARP Cache Timeout Option", time, 4, 4}; |
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DHCPOPT[35] = {"Ethernet Encapsulation Option", opt_switch, 1, 1}; |
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DHCPOPT[36] = {"TCP Default TTL Option", number, 1, 1}; |
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DHCPOPT[37] = {"TCP Keepalive Interval Option", time, 4, 4}; |
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DHCPOPT[38] = {"TCP Keepalive Garbage Option", opt_switch, 1, 1}; |
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DHCPOPT[39] = {"Network Information Service Domain Option", string, 1, 0}; |
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DHCPOPT[40] = {"Network Information Servers Option", ip, 4, 0}; |
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DHCPOPT[41] = {"Network Time Protocol Servers Option", ip, 4, 0}; |
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DHCPOPT[42] = {"Vendor Specific Information", multi, 0, 0}; |
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DHCPOPT[43] = {"NetBIOS over TCP/IP Name Server Option", ip, 4, 0}; |
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DHCPOPT[44] = {"NetBIOS over TCP/IP Datagram Distribution Server Option", ip, 4, 0}; |
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DHCPOPT[45] = {"NetBIOS over TCP/IP Node Type Option", node_type, 1, 1}; |
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DHCPOPT[46] = {"NetBIOS over TCP/IP Scope Option", string, 1, 0}; |
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DHCPOPT[47] = {"X Window System Font Server Option", ip, 4, 0}; |
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DHCPOPT[48] = {"X Window System Display Manager Option", ip, 4, 0}; |
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DHCPOPT[49] = {"Requested IP Address", ip, 4, 4}; |
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DHCPOPT[50] = {"IP Address Lease Time", time, 4, 4}; |
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DHCPOPT[51] = {"Option Overload", opt_switch, 1, 1}; // values: 1,2,3 |
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DHCPOPT[52] = {"DHCP Message Type", opt_switch, 1, 1}; // values: 1-8 |
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DHCPOPT[53] = {"Server Identifier", ip, 4, 4}; |
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DHCPOPT[54] = {"Parameter Request List", number, 1, 0}; |
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DHCPOPT[55] = {"Message", string, 1, 0}; |
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DHCPOPT[56] = {"Maximum DHCP Message Size", number, 2, 2}; |
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DHCPOPT[57] = {"Renewal (T1) Time Value", time, 4, 4}; |
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DHCPOPT[58] = {"Rebinding (T2) Time Value", time, 4, 4}; |
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DHCPOPT[59] = {"Vendor class identifier", bin, 1, 0}; |
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DHCPOPT[60] = {"Client-identifier", bin, 2, 0}; // first field: type then data |
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DHCPOPT[63] = {"Network Information Service+ Domain Option", string, 1, 0}; |
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DHCPOPT[65] = {"TFTP server name", string, 1, 0}; |
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DHCPOPT[66] = {"Bootfile name", string, 1, 0}; |
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DHCPOPT[67] = {"Mobile IP Home Agent option", ip, 4, 0}; |
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DHCPOPT[68] = {"Simple Mail Transport Protocol (SMTP) Server Option", ip, 4, 0}; |
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DHCPOPT[69] = {"Post Office Protocol (POP3) Server Option", ip, 4, 0}; |
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DHCPOPT[70] = {"Network News Transport Protocol (NNTP) Server Option", ip, 4, 0}; |
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DHCPOPT[71] = {"Default World Wide Web (WWW) Server Option", ip, 4, 0}; |
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DHCPOPT[72] = {"Default Finger Server Option", ip, 4, 0}; |
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DHCPOPT[73] = {"Default Internet Relay Chat (IRC) Server Option", ip, 4, 0}; |
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DHCPOPT[74] = {"StreetTalk Server Option", ip, 4, 0}; |
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DHCPOPT[75] = {"StreetTalk Directory Assistance (STDA) Server Option", ip, 4, 0}; |
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