xref: /openbmc/u-boot/net/bootp.h (revision f8315731)
1efee1709Swdenk /*
2efee1709Swdenk  *	Copied from LiMon - BOOTP.
3efee1709Swdenk  *
4efee1709Swdenk  *	Copyright 1994, 1995, 2000 Neil Russell.
5efee1709Swdenk  *	(See License)
6efee1709Swdenk  *	Copyright 2000 Paolo Scaffardi
7efee1709Swdenk  */
8efee1709Swdenk 
9efee1709Swdenk #ifndef __BOOTP_H__
10efee1709Swdenk #define __BOOTP_H__
11efee1709Swdenk 
12efee1709Swdenk #ifndef __NET_H__
13efee1709Swdenk #include <net.h>
14efee1709Swdenk #endif /* __NET_H__ */
15efee1709Swdenk 
16efee1709Swdenk /**********************************************************************/
17efee1709Swdenk 
18efee1709Swdenk /*
19efee1709Swdenk  *	BOOTP header.
20efee1709Swdenk  */
21643d1ab2SJon Loeliger #if defined(CONFIG_CMD_DHCP)
223090b7e3SJoe Hershberger /* Minimum DHCP Options size per RFC2131 - results in 576 byte pkt */
23*f8315731SJoe Hershberger #define OPT_FIELD_SIZE 312
243090b7e3SJoe Hershberger #if defined(CONFIG_BOOTP_VENDOREX)
253090b7e3SJoe Hershberger extern u8 *dhcp_vendorex_prep(u8 *e); /*rtn new e after add own opts. */
263090b7e3SJoe Hershberger extern u8 *dhcp_vendorex_proc(u8 *e); /*rtn next e if mine,else NULL  */
273090b7e3SJoe Hershberger #endif
28efee1709Swdenk #else
29*f8315731SJoe Hershberger #define OPT_FIELD_SIZE 64
30efee1709Swdenk #endif
31efee1709Swdenk 
323090b7e3SJoe Hershberger struct Bootp_t {
33efee1709Swdenk 	uchar		bp_op;		/* Operation			*/
34efee1709Swdenk # define OP_BOOTREQUEST	1
35efee1709Swdenk # define OP_BOOTREPLY	2
36efee1709Swdenk 	uchar		bp_htype;	/* Hardware type		*/
37efee1709Swdenk # define HWT_ETHER	1
38efee1709Swdenk 	uchar		bp_hlen;	/* Hardware address length	*/
39efee1709Swdenk # define HWL_ETHER	6
40efee1709Swdenk 	uchar		bp_hops;	/* Hop count (gateway thing)	*/
41efee1709Swdenk 	ulong		bp_id;		/* Transaction ID		*/
42efee1709Swdenk 	ushort		bp_secs;	/* Seconds since boot		*/
43efee1709Swdenk 	ushort		bp_spare1;	/* Alignment			*/
44efee1709Swdenk 	IPaddr_t	bp_ciaddr;	/* Client IP address		*/
45efee1709Swdenk 	IPaddr_t	bp_yiaddr;	/* Your (client) IP address	*/
46efee1709Swdenk 	IPaddr_t	bp_siaddr;	/* Server IP address		*/
47efee1709Swdenk 	IPaddr_t	bp_giaddr;	/* Gateway IP address		*/
48efee1709Swdenk 	uchar		bp_chaddr[16];	/* Client hardware address	*/
49efee1709Swdenk 	char		bp_sname[64];	/* Server host name		*/
50efee1709Swdenk 	char		bp_file[128];	/* Boot file name		*/
51*f8315731SJoe Hershberger 	char		bp_vend[OPT_FIELD_SIZE]; /* Vendor information	*/
523090b7e3SJoe Hershberger };
53efee1709Swdenk 
543090b7e3SJoe Hershberger #define BOOTP_HDR_SIZE	sizeof(struct Bootp_t)
55efee1709Swdenk 
56efee1709Swdenk /**********************************************************************/
57efee1709Swdenk /*
58efee1709Swdenk  *	Global functions and variables.
59efee1709Swdenk  */
60efee1709Swdenk 
61efee1709Swdenk /* bootp.c */
62efee1709Swdenk extern ulong	BootpID;		/* ID of cur BOOTP request	*/
63efee1709Swdenk extern char	BootFile[128];		/* Boot file name		*/
64efee1709Swdenk extern int	BootpTry;
65efee1709Swdenk 
66efee1709Swdenk 
67efee1709Swdenk /* Send a BOOTP request */
68efee1709Swdenk extern void BootpRequest(void);
69efee1709Swdenk 
70efee1709Swdenk /****************** DHCP Support *********************/
71efee1709Swdenk extern void DhcpRequest(void);
72efee1709Swdenk 
73efee1709Swdenk /* DHCP States */
74efee1709Swdenk typedef enum { INIT,
75efee1709Swdenk 	       INIT_REBOOT,
76efee1709Swdenk 	       REBOOTING,
77efee1709Swdenk 	       SELECTING,
78efee1709Swdenk 	       REQUESTING,
79efee1709Swdenk 	       REBINDING,
80efee1709Swdenk 	       BOUND,
81efee1709Swdenk 	       RENEWING } dhcp_state_t;
82efee1709Swdenk 
83efee1709Swdenk #define DHCP_DISCOVER 1
84efee1709Swdenk #define DHCP_OFFER    2
85efee1709Swdenk #define DHCP_REQUEST  3
86efee1709Swdenk #define DHCP_DECLINE  4
87efee1709Swdenk #define DHCP_ACK      5
88efee1709Swdenk #define DHCP_NAK      6
89efee1709Swdenk #define DHCP_RELEASE  7
90efee1709Swdenk 
9149f3bdbbSBartlomiej Sieka #define SELECT_TIMEOUT 3000UL	/* Milliseconds to wait for offers */
92efee1709Swdenk 
93efee1709Swdenk /**********************************************************************/
94efee1709Swdenk 
95efee1709Swdenk #endif /* __BOOTP_H__ */
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