#ifndef _NETINET_DHCP_H #define _NETINET_DHCP_H #include <sys/appleapiopts.h> /* * Copyright (c) 1999-2007 Apple Inc. All rights reserved. * * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. The rights granted to you under the License * may not be used to create, or enable the creation or redistribution of, * unlawful or unlicensed copies of an Apple operating system, or to * circumvent, violate, or enable the circumvention or violation of, any * terms of an Apple operating system software license agreement. * * Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */ /* * dhcp.h * - definitions for DHCP (as specified in RFC2132) */ #include <sys/types.h> #include <netinet/in.h> #include <netinet/in_systm.h> #include <netinet/ip.h> #include <netinet/udp.h> struct dhcp { u_char dp_op; /* packet opcode type */ u_char dp_htype; /* hardware addr type */ u_char dp_hlen; /* hardware addr length */ u_char dp_hops; /* gateway hops */ u_int32_t dp_xid; /* transaction ID */ u_int16_t dp_secs; /* seconds since boot began */ u_int16_t dp_flags; /* flags */ struct in_addr dp_ciaddr; /* client IP address */ struct in_addr dp_yiaddr; /* 'your' IP address */ struct in_addr dp_siaddr; /* server IP address */ struct in_addr dp_giaddr; /* gateway IP address */ u_char dp_chaddr[16];/* client hardware address */ u_char dp_sname[64];/* server host name */ u_char dp_file[128];/* boot file name */ u_char dp_options[0];/* variable-length options field */ }; struct dhcp_packet { struct ip ip; struct udphdr udp; struct dhcp dhcp; }; #define DHCP_OPTIONS_MIN 312 #define DHCP_PACKET_MIN (sizeof(struct dhcp_packet) + DHCP_OPTIONS_MIN) #define DHCP_PAYLOAD_MIN (sizeof(struct dhcp) + DHCP_OPTIONS_MIN) /* dhcp message types */ #define DHCPDISCOVER 1 #define DHCPOFFER 2 #define DHCPREQUEST 3 #define DHCPDECLINE 4 #define DHCPACK 5 #define DHCPNAK 6 #define DHCPRELEASE 7 #define DHCPINFORM 8 enum { dhcp_msgtype_none_e = 0, dhcp_msgtype_discover_e = DHCPDISCOVER, dhcp_msgtype_offer_e = DHCPOFFER, dhcp_msgtype_request_e = DHCPREQUEST, dhcp_msgtype_decline_e = DHCPDECLINE, dhcp_msgtype_ack_e = DHCPACK, dhcp_msgtype_nak_e = DHCPNAK, dhcp_msgtype_release_e = DHCPRELEASE, dhcp_msgtype_inform_e = DHCPINFORM, }; typedef uint8_t dhcp_msgtype_t; typedef int32_t dhcp_time_secs_t; /* absolute time */ typedef int32_t dhcp_lease_t; /* relative time */ #define dhcp_time_hton htonl #define dhcp_time_ntoh ntohl #define dhcp_lease_hton htonl #define dhcp_lease_ntoh ntohl #define DHCP_INFINITE_LEASE ((dhcp_lease_t)-1) #define DHCP_INFINITE_TIME ((dhcp_time_secs_t)-1) #define DHCP_FLAGS_BROADCAST ((u_int16_t)0x8000) #endif /* _NETINET_DHCP_H */