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- /*
- * Copied from LiMon - BOOTP.
- *
- * Copyright 1994, 1995, 2000 Neil Russell.
- * (See License)
- * Copyright 2000 Paolo Scaffardi
- */
- #ifndef __BOOTP_H__
- #define __BOOTP_H__
- #ifndef __NET_H__
- #include <net.h>
- #endif /* __NET_H__ */
- /**********************************************************************/
- /*
- * BOOTP header.
- */
- #if defined(CONFIG_CMD_DHCP)
- /* Minimum DHCP Options size per RFC2131 - results in 576 byte pkt */
- #define OPT_SIZE 312
- #if defined(CONFIG_BOOTP_VENDOREX)
- extern u8 *dhcp_vendorex_prep(u8 *e); /*rtn new e after add own opts. */
- extern u8 *dhcp_vendorex_proc(u8 *e); /*rtn next e if mine,else NULL */
- #endif
- #else
- #define OPT_SIZE 64
- #endif
- struct Bootp_t {
- uchar bp_op; /* Operation */
- # define OP_BOOTREQUEST 1
- # define OP_BOOTREPLY 2
- uchar bp_htype; /* Hardware type */
- # define HWT_ETHER 1
- uchar bp_hlen; /* Hardware address length */
- # define HWL_ETHER 6
- uchar bp_hops; /* Hop count (gateway thing) */
- ulong bp_id; /* Transaction ID */
- ushort bp_secs; /* Seconds since boot */
- ushort bp_spare1; /* Alignment */
- IPaddr_t bp_ciaddr; /* Client IP address */
- IPaddr_t bp_yiaddr; /* Your (client) IP address */
- IPaddr_t bp_siaddr; /* Server IP address */
- IPaddr_t bp_giaddr; /* Gateway IP address */
- uchar bp_chaddr[16]; /* Client hardware address */
- char bp_sname[64]; /* Server host name */
- char bp_file[128]; /* Boot file name */
- char bp_vend[OPT_SIZE]; /* Vendor information */
- };
- #define BOOTP_HDR_SIZE sizeof(struct Bootp_t)
- #define BOOTP_SIZE (ETHER_HDR_SIZE + IP_UDP_HDR_SIZE + BOOTP_HDR_SIZE)
- /**********************************************************************/
- /*
- * Global functions and variables.
- */
- /* bootp.c */
- extern ulong BootpID; /* ID of cur BOOTP request */
- extern char BootFile[128]; /* Boot file name */
- extern int BootpTry;
- /* Send a BOOTP request */
- extern void BootpRequest(void);
- /****************** DHCP Support *********************/
- extern void DhcpRequest(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 SELECT_TIMEOUT 3000UL /* Milliseconds to wait for offers */
- /**********************************************************************/
- #endif /* __BOOTP_H__ */
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