1/* 2 * Copyright (c) 2000-2013 Apple Inc. All rights reserved. 3 * 4 * @APPLE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. Please obtain a copy of the License at 10 * http://www.opensource.apple.com/apsl/ and read it before using this 11 * file. 12 * 13 * The Original Code and all software distributed under the License are 14 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 15 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 16 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 18 * Please see the License for the specific language governing rights and 19 * limitations under the License. 20 * 21 * @APPLE_LICENSE_HEADER_END@ 22 */ 23 24 25#ifndef _S_DHCPLIB_H 26#define _S_DHCPLIB_H 27 28#include <mach/boolean.h> 29#include <sys/time.h> 30#import <netinet/bootp.h> 31#include "dhcp_options.h" 32#include "gen_dhcp_tags.h" 33 34void dhcp_packet_print_cfstr(CFMutableStringRef str, 35 struct dhcp * dp, int pkt_len); 36void dhcp_packet_fprint(FILE * f, struct dhcp * dp, int pkt_len); 37void dhcp_packet_print(struct dhcp * dp, int pkt_len); 38 39/* 40 * Function: is_dhcp_packet 41 * 42 * Purpose: 43 * Return whether packet is a DHCP packet. 44 * If the packet contains DHCP message ids, then its a DHCP packet. 45 */ 46static __inline__ boolean_t 47is_dhcp_packet(dhcpol_t * options, dhcp_msgtype_t * msgtype) 48{ 49 if (options) { 50 u_char * opt; 51 int opt_len; 52 53 opt = dhcpol_find(options, dhcptag_dhcp_message_type_e, 54 &opt_len, NULL); 55 if (opt != NULL) { 56 if (msgtype) 57 *msgtype = *opt; 58 return (TRUE); 59 } 60 } 61 return (FALSE); 62} 63 64boolean_t 65dhcp_packet_match(struct bootp * packet, u_int32_t xid, 66 u_char hwtype, void * hwaddr, int hwlen); 67 68#endif /* _S_DHCPLIB_H */ 69