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u-boot
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bootp.h

bootp.h 2.3 KB
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  1. /*
    2. 

  2.  *	Copied from LiMon - BOOTP.
    3. 

  3.  *
    4. 

  4.  *	Copyright 1994, 1995, 2000 Neil Russell.
    5. 

  5.  *	(See License)
    6. 

  6.  *	Copyright 2000 Paolo Scaffardi
    7. 

  7.  */
    8. 

  8. 

  9. #ifndef __BOOTP_H__
    10. 

  10. #define __BOOTP_H__
    11. 

  11. 

  12. #ifndef __NET_H__
    13. 

  13. #include <net.h>
    14. 

  14. #endif /* __NET_H__ */
    15. 

  15. 

  16. /**********************************************************************/
    17. 

  17. 

  18. /*
    19. 

  19.  *	BOOTP header.
    20. 

  20.  */
    21. 

  21. #if defined(CONFIG_CMD_DHCP)
    22. 

  22. /* Minimum DHCP Options size per RFC2131 - results in 576 byte pkt */
    23. 

  23. #define OPT_FIELD_SIZE 312
    24. 

  24. #if defined(CONFIG_BOOTP_VENDOREX)
    25. 

  25. extern u8 *dhcp_vendorex_prep(u8 *e); /*rtn new e after add own opts. */
    26. 

  26. extern u8 *dhcp_vendorex_proc(u8 *e); /*rtn next e if mine,else NULL  */
    27. 

  27. #endif
    28. 

  28. #else
    29. 

  29. #define OPT_FIELD_SIZE 64
    30. 

  30. #endif
    31. 

  31. 

  32. struct bootp_hdr {
    33. 

  33. 	uchar		bp_op;		/* Operation			*/
    34. 

  34. # define OP_BOOTREQUEST	1
    35. 

  35. # define OP_BOOTREPLY	2
    36. 

  36. 	uchar		bp_htype;	/* Hardware type		*/
    37. 

  37. # define HWT_ETHER	1
    38. 

  38. 	uchar		bp_hlen;	/* Hardware address length	*/
    39. 

  39. # define HWL_ETHER	6
    40. 

  40. 	uchar		bp_hops;	/* Hop count (gateway thing)	*/
    41. 

  41. 	ulong		bp_id;		/* Transaction ID		*/
    42. 

  42. 	ushort		bp_secs;	/* Seconds since boot		*/
    43. 

  43. 	ushort		bp_spare1;	/* Alignment			*/
    44. 

  44. 	struct in_addr	bp_ciaddr;	/* Client IP address		*/
    45. 

  45. 	struct in_addr	bp_yiaddr;	/* Your (client) IP address	*/
    46. 

  46. 	struct in_addr	bp_siaddr;	/* Server IP address		*/
    47. 

  47. 	struct in_addr	bp_giaddr;	/* Gateway IP address		*/
    48. 

  48. 	uchar		bp_chaddr[16];	/* Client hardware address	*/
    49. 

  49. 	char		bp_sname[64];	/* Server host name		*/
    50. 

  50. 	char		bp_file[128];	/* Boot file name		*/
    51. 

  51. 	char		bp_vend[OPT_FIELD_SIZE]; /* Vendor information	*/
    52. 

  52. };
    53. 

  53. 

  54. #define BOOTP_HDR_SIZE	sizeof(struct bootp_hdr)
    55. 

  55. 

  56. /**********************************************************************/
    57. 

  57. /*
    58. 

  58.  *	Global functions and variables.
    59. 

  59.  */
    60. 

  60. 

  61. /* bootp.c */
    62. 

  62. extern ulong	bootp_id;		/* ID of cur BOOTP request	*/
    63. 

  63. extern int	bootp_try;
    64. 

  64. 

  65. 

  66. /* Send a BOOTP request */
    67. 

  67. void bootp_reset(void);
    68. 

  68. void bootp_request(void);
    69. 

  69. 

  70. /****************** DHCP Support *********************/
    71. 

  71. void dhcp_request(void);
    72. 

  72. 

  73. /* DHCP States */
    74. 

  74. typedef enum { INIT,
    75. 

  75. 	       INIT_REBOOT,
    76. 

  76. 	       REBOOTING,
    77. 

  77. 	       SELECTING,
    78. 

  78. 	       REQUESTING,
    79. 

  79. 	       REBINDING,
    80. 

  80. 	       BOUND,
    81. 

  81. 	       RENEWING } dhcp_state_t;
    82. 

  82. 

  83. #define DHCP_DISCOVER 1
    84. 

  84. #define DHCP_OFFER    2
    85. 

  85. #define DHCP_REQUEST  3
    86. 

  86. #define DHCP_DECLINE  4
    87. 

  87. #define DHCP_ACK      5
    88. 

  88. #define DHCP_NAK      6
    89. 

  89. #define DHCP_RELEASE  7
    90. 

  90. 

  91. /**********************************************************************/
    92. 

  92. 

  93. #endif /* __BOOTP_H__ */
    94.