[apple/xnu.git] / bsd / netinet / dhcp.h


#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_short)0x0001)

#endif /* _NETINET_DHCP_H */
Commit	Line	Data
9bccf70c A	1
	2	#ifndef _NETINET_DHCP_H
	3	#define _NETINET_DHCP_H
	4	#include <sys/appleapiopts.h>
	5
	6	/*
2d21ac55	7	* Copyright (c) 1999-2007 Apple Inc. All rights reserved.
9bccf70c	8	*
2d21ac55	9	* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
9bccf70c	10	*
2d21ac55 A	11	* This file contains Original Code and/or Modifications of Original Code
	12	* as defined in and that are subject to the Apple Public Source License
	13	* Version 2.0 (the 'License'). You may not use this file except in
	14	* compliance with the License. The rights granted to you under the License
	15	* may not be used to create, or enable the creation or redistribution of,
	16	* unlawful or unlicensed copies of an Apple operating system, or to
	17	* circumvent, violate, or enable the circumvention or violation of, any
	18	* terms of an Apple operating system software license agreement.
8f6c56a5	19	*
2d21ac55 A	20	* Please obtain a copy of the License at
	21	* http://www.opensource.apple.com/apsl/ and read it before using this file.
	22	*
	23	* The Original Code and all software distributed under the License are
	24	* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
8f6c56a5 A	25	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
8f6c56a5 A	26	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
2d21ac55 A	27	* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
	28	* Please see the License for the specific language governing rights and
	29	* limitations under the License.
8f6c56a5	30	*
2d21ac55	31	* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
9bccf70c A	32	*/
	33	/*
	34	* dhcp.h
	35	* - definitions for DHCP (as specified in RFC2132)
	36	*/
	37	#include <sys/types.h>
	38	#include <netinet/in.h>
	39	#include <netinet/in_systm.h>
	40	#include <netinet/ip.h>
	41	#include <netinet/udp.h>
	42
	43	struct dhcp {
	44	u_char dp_op; /* packet opcode type */
	45	u_char dp_htype; /* hardware addr type */
	46	u_char dp_hlen; /* hardware addr length */
	47	u_char dp_hops; /* gateway hops */
	48	u_int32_t dp_xid; /* transaction ID */
	49	u_int16_t dp_secs; /* seconds since boot began */
	50	u_int16_t dp_flags; /* flags */
	51	struct in_addr dp_ciaddr; /* client IP address */
	52	struct in_addr dp_yiaddr; /* 'your' IP address */
	53	struct in_addr dp_siaddr; /* server IP address */
	54	struct in_addr dp_giaddr; /* gateway IP address */
	55	u_char dp_chaddr[16]; /* client hardware address */
	56	u_char dp_sname[64]; /* server host name */
	57	u_char dp_file[128]; /* boot file name */
	58	u_char dp_options[0]; /* variable-length options field */
	59	};
	60
	61	struct dhcp_packet {
	62	struct ip ip;
	63	struct udphdr udp;
	64	struct dhcp dhcp;
	65	};
	66
2d21ac55 A	67	#define DHCP_OPTIONS_MIN 312
	68	#define DHCP_PACKET_MIN (sizeof(struct dhcp_packet) + DHCP_OPTIONS_MIN)
	69	#define DHCP_PAYLOAD_MIN (sizeof(struct dhcp) + DHCP_OPTIONS_MIN)
9bccf70c A	70
	71	/* dhcp message types */
	72	#define DHCPDISCOVER 1
	73	#define DHCPOFFER 2
	74	#define DHCPREQUEST 3
	75	#define DHCPDECLINE 4
	76	#define DHCPACK 5
	77	#define DHCPNAK 6
	78	#define DHCPRELEASE 7
	79	#define DHCPINFORM 8
	80
2d21ac55 A	81	enum {
	82	dhcp_msgtype_none_e = 0,
	83	dhcp_msgtype_discover_e = DHCPDISCOVER,
	84	dhcp_msgtype_offer_e = DHCPOFFER,
	85	dhcp_msgtype_request_e = DHCPREQUEST,
	86	dhcp_msgtype_decline_e = DHCPDECLINE,
	87	dhcp_msgtype_ack_e = DHCPACK,
	88	dhcp_msgtype_nak_e = DHCPNAK,
	89	dhcp_msgtype_release_e = DHCPRELEASE,
	90	dhcp_msgtype_inform_e = DHCPINFORM,
	91	};
	92
	93	typedef uint8_t dhcp_msgtype_t;
	94
9bccf70c A	95	typedef int32_t dhcp_time_secs_t; /* absolute time */
	96	typedef int32_t dhcp_lease_t; /* relative time */
	97	#define dhcp_time_hton htonl
	98	#define dhcp_time_ntoh ntohl
	99	#define dhcp_lease_hton htonl
	100	#define dhcp_lease_ntoh ntohl
	101
	102	#define DHCP_INFINITE_LEASE ((dhcp_lease_t)-1)
	103	#define DHCP_INFINITE_TIME ((dhcp_time_secs_t)-1)
	104
	105	#define DHCP_FLAGS_BROADCAST ((u_short)0x0001)
	106
d7e50217	107	#endif /* _NETINET_DHCP_H */