dhcp-sniffer-ohandlers.c

this is sample about DHCP-agent

/* $Header: /cvsroot/dhcp-agent/dhcp-agent/src/dhcp-sniffer-ohandlers.c,v 1.3 2002/11/16 00:23:44 actmodern Exp $
 *
 * Copyright 2002 Thamer Alharbash
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in
 * the documentation and/or other materials provided with the
 * distribution.
 * 3. The names of the authors may not be used to endorse or promote
 * products derived from this software without specific prior
 * written permission.
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 * 
 */

#include "dhcp-local.h"
#include "dhcp-libutil.h"
#include "dhcp-librawnet.h"
#include "dhcp-print.h"

/* There are 63 DHCP options we handle,
 * only 61 of them are handled with actual routines.
 *
 * Tag values on the right.
 *
 */

option_handler option_handlers[] = {
    {NULL, NULL,}
    , /* 0: Pad: don't handle it here. */
    {"Subnet Mask", print_address_list}
    , /* 1 */
    {"Time Offset", print_int32}
    , /* 2 */
    {"Routers", print_address_list}
    , /* 3 */
    {"Time Servers", print_address_list}
    , /* 4 */
    {"Name Servers", print_address_list}
    , /* 5 */
    {"Domain Name Servers", print_address_list}
    , /* 6 */
    {"Log Servers", print_address_list}
    , /* 7 */
    {"Cookie Servers", print_address_list}
    , /* 8 */
    {"LPR Servers", print_address_list}
    , /* 9 */
    {"Impress Servers", print_address_list}
    , /* 10 */
    {"RL servers", print_address_list}
    , /* 11 */
    {"Hostname", print_string}
    , /* 12 */
    {"Boot File Size", print_uint16}
    , /* 13 */
    {"Merit Dump File", print_string}
    , /* 14 */
    {"Domain Name", print_string}
    , /* 15 */
    {"Swap Server", print_address_list}
    , /* 16 */
    {"Root Path", print_string}
    , /* 17 */
    {"Extensions Path", print_string}
    , /* 18 */
    {"IP Forwarding", print_en_bool}
    , /* 19 */
    {"Source Routing", print_en_bool}
    , /* 20 */
    {"Policy Filter", print_address_mask_list}
    , /* 21 */
    {"Maximum DGRAM Reassmbly", print_uint16}
    , /* 22 */
    {"Default IP Time-to-live", print_ubyte}
    , /* 23 */
    {"Path MTU Aging Timeout", print_uint32}
    , /* 24 */
    {"Path MTU Plateau Table", print_uint16_list}
    , /* 25 */
    {"Interface MTU", print_uint16}
    , /* 26 */
    {"All Subnets", print_yn_bool}
    , /* 27 */
    {"Broadcast Address", print_address_list}
    , /* 28 */
    {"Perform Mask Discovery", print_yn_bool}
    , /* 29 */
    {"Mask Supplier", print_yn_bool}
    , /* 30 */
    {"Perform Router Discovery", print_yn_bool}
    , /* 31 */
    {"Router Solicitation Address", print_address_list}
    , /* 32 */
    {"Static Route", print_address_route_list}
    , /* 33 */
    {"Trailer Encapsulation", print_yn_bool}
    , /* 34 */
    {"ARP Cache Timeout", print_uint32}
    , /* 35 */
    {"Ethernet Encapsulation", print_yn_bool}
    , /* 36 */
    {"TCP Default TTL", print_ubyte}
    , /* 37 */
    {"TCP KeepAlive Interval", print_uint32}
    , /* 38 */
    {"TCP KeepAlive Garbage", print_yn_bool}
    , /* 39 */
    {"Network Information Service Domain", print_string}
    , /* 40 */
    {"Network Information Servers", print_address_list}
    , /* 41 */
    {"Network Time Protocol Servers", print_address_list}
    , /* 42 */
    {"Vendor Specific Information", dont_handle}
    , /* 43 */
    {"NetBIOS over TCP/IP Name Servers", print_address_list}
    , /* 44 */
    {"NetBIOS over TCP/IP Datagram Distribution Servers", print_address_list}
    , /* 45 */
    {"NetBIOS over TCP/IP Node Type", print_netbios_node_type}
    , /* 46 */
    {"NetBIOS over TCP/IP Scope", dont_handle}
    , /* 47 */
    {"X-Windows Font Servers", print_address_list}
    , /* 48 */
    {"X-Windows System Display Manager", print_address_list}
    , /* 49 */
    {"Request IP Address", print_address_list}
    , /* 50 */
    {"IP Address Lease Time", print_uint32}
    , /* 51 */
    {"Option Overload", dont_handle}
    , /* 52 */
    {"DHCP Message Type", print_dhcp_type_message}
    , /* 53 */
    {"Server Identifier", print_address_list}
    , /* 54 */
    {"Parameter Request List", print_request_options}
    , /* 55 */
    {"Message", print_string}
    , /* 56 */
    {"Max DHP Message Size", print_uint16}
    , /* 57 */
    {"Renewal Time", print_uint32}
    , /* 58 */
    {"Rebinding Time", print_uint32}
    , /* 59 */
    {"Class ID", dont_handle}
    , /* 60 */
    {"Client ID", dont_handle}
    , /* 61 */
};