[thirdparty/u-boot.git] / net / bootp.h

/* SPDX-License-Identifier: GPL-2.0-only */
/*
 *	Copied from LiMon - BOOTP.
 *
 *	Copyright 1994, 1995, 2000 Neil Russell.
 *	Copyright 2000 Paolo Scaffardi
 */

#ifndef __BOOTP_H__
#define __BOOTP_H__

#ifndef __NET_H__
#include <net.h>
#endif /* __NET_H__ */

/**********************************************************************/

#define PORT_BOOTPS	67		/* BOOTP server UDP port */
#define PORT_BOOTPC	68		/* BOOTP client UDP port */

/*
 *	BOOTP header.
 */
#if defined(CONFIG_CMD_DHCP)
/* Minimum DHCP Options size per RFC2131 - results in 576 byte pkt */
#define OPT_FIELD_SIZE 312
#else
#define OPT_FIELD_SIZE 64
#endif

struct bootp_hdr {
	u8		bp_op;		/* Operation			*/
# define OP_BOOTREQUEST	1
# define OP_BOOTREPLY	2
	u8		bp_htype;	/* Hardware type		*/
# define HWT_ETHER	1
	u8		bp_hlen;	/* Hardware address length	*/
# define HWL_ETHER	6
	u8		bp_hops;	/* Hop count (gateway thing)	*/
	u32		bp_id;		/* Transaction ID		*/
	u16		bp_secs;	/* Seconds since boot		*/
	u16		bp_spare1;	/* Alignment			*/
	struct in_addr	bp_ciaddr;	/* Client IP address		*/
	struct in_addr	bp_yiaddr;	/* Your (client) IP address	*/
	struct in_addr	bp_siaddr;	/* Server IP address		*/
	struct in_addr	bp_giaddr;	/* Gateway IP address		*/
	u8		bp_chaddr[16];	/* Client hardware address	*/
	char		bp_sname[64];	/* Server host name		*/
	char		bp_file[128];	/* Boot file name		*/
	char		bp_vend[OPT_FIELD_SIZE]; /* Vendor information	*/
} __attribute__((packed));

#define BOOTP_HDR_SIZE	sizeof(struct bootp_hdr)

/**********************************************************************/
/*
 *	Global functions and variables.
 */

/* bootp.c */
extern u32	bootp_id;		/* ID of cur BOOTP request	*/
extern int	bootp_try;

/* Send a BOOTP request */
void bootp_reset(void);
void bootp_request(void);

/****************** DHCP Support *********************/
void dhcp_request(void);

/* DHCP States */
typedef enum { INIT,
	       INIT_REBOOT,
	       REBOOTING,
	       SELECTING,
	       REQUESTING,
	       REBINDING,
	       BOUND,
	       RENEWING } dhcp_state_t;

#define DHCP_DISCOVER 1
#define DHCP_OFFER    2
#define DHCP_REQUEST  3
#define DHCP_DECLINE  4
#define DHCP_ACK      5
#define DHCP_NAK      6
#define DHCP_RELEASE  7

#define DHCP_OPTION_PXE_CONFIG_FILE	209	/* "ConfigFile" option according to rfc5071 */

/**********************************************************************/

#endif /* __BOOTP_H__ */
Commit	Line	Data
	1	/* SPDX-License-Identifier: GPL-2.0-only */
	2	/*
	3	* Copied from LiMon - BOOTP.
	4	*
	5	* Copyright 1994, 1995, 2000 Neil Russell.
	6	* Copyright 2000 Paolo Scaffardi
	7	*/
	8
	9	#ifndef __BOOTP_H__
	10	#define __BOOTP_H__
	11
	12	#ifndef __NET_H__
	13	#include <net.h>
	14	#endif /* __NET_H__ */
	15
	16	/**********************************************************************/
	17
	18	#define PORT_BOOTPS 67 /* BOOTP server UDP port */
	19	#define PORT_BOOTPC 68 /* BOOTP client UDP port */
	20
	21	/*
	22	* BOOTP header.
	23	*/
	24	#if defined(CONFIG_CMD_DHCP)
	25	/* Minimum DHCP Options size per RFC2131 - results in 576 byte pkt */
	26	#define OPT_FIELD_SIZE 312
	27	#else
	28	#define OPT_FIELD_SIZE 64
	29	#endif
	30
	31	struct bootp_hdr {
	32	u8 bp_op; /* Operation */
	33	# define OP_BOOTREQUEST 1
	34	# define OP_BOOTREPLY 2
	35	u8 bp_htype; /* Hardware type */
	36	# define HWT_ETHER 1
	37	u8 bp_hlen; /* Hardware address length */
	38	# define HWL_ETHER 6
	39	u8 bp_hops; /* Hop count (gateway thing) */
	40	u32 bp_id; /* Transaction ID */
	41	u16 bp_secs; /* Seconds since boot */
	42	u16 bp_spare1; /* Alignment */
	43	struct in_addr bp_ciaddr; /* Client IP address */
	44	struct in_addr bp_yiaddr; /* Your (client) IP address */
	45	struct in_addr bp_siaddr; /* Server IP address */
	46	struct in_addr bp_giaddr; /* Gateway IP address */
	47	u8 bp_chaddr[16]; /* Client hardware address */
	48	char bp_sname[64]; /* Server host name */
	49	char bp_file[128]; /* Boot file name */
	50	char bp_vend[OPT_FIELD_SIZE]; /* Vendor information */
	51	} __attribute__((packed));
	52
	53	#define BOOTP_HDR_SIZE sizeof(struct bootp_hdr)
	54
	55	/**********************************************************************/
	56	/*
	57	* Global functions and variables.
	58	*/
	59
	60	/* bootp.c */
	61	extern u32 bootp_id; /* ID of cur BOOTP request */
	62	extern int bootp_try;
	63
	64	/* Send a BOOTP request */
	65	void bootp_reset(void);
	66	void bootp_request(void);
	67
	68	/**************** DHCP Support *******************/
	69	void dhcp_request(void);
	70
	71	/* DHCP States */
	72	typedef enum { INIT,
	73	INIT_REBOOT,
	74	REBOOTING,
	75	SELECTING,
	76	REQUESTING,
	77	REBINDING,
	78	BOUND,
	79	RENEWING } dhcp_state_t;
	80
	81	#define DHCP_DISCOVER 1
	82	#define DHCP_OFFER 2
	83	#define DHCP_REQUEST 3
	84	#define DHCP_DECLINE 4
	85	#define DHCP_ACK 5
	86	#define DHCP_NAK 6
	87	#define DHCP_RELEASE 7
	88
	89	#define DHCP_OPTION_PXE_CONFIG_FILE 209 /* "ConfigFile" option according to rfc5071 */
	90
	91	/**********************************************************************/
	92
	93	#endif /* __BOOTP_H__ */