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