| lh | 9ed821d | 2023-04-07 01:36:19 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copied from LiMon - BOOTP. |
| 3 | * |
| 4 | * Copyright 1994, 1995, 2000 Neil Russell. |
| 5 | * (See License) |
| 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 | /* |
| 19 | * BOOTP header. |
| 20 | */ |
| 21 | #if defined(CONFIG_CMD_DHCP) |
| 22 | /* Minimum DHCP Options size per RFC2131 - results in 576 byte pkt */ |
| 23 | #define OPT_FIELD_SIZE 312 |
| 24 | #if defined(CONFIG_BOOTP_VENDOREX) |
| 25 | extern u8 *dhcp_vendorex_prep(u8 *e); /*rtn new e after add own opts. */ |
| 26 | extern u8 *dhcp_vendorex_proc(u8 *e); /*rtn next e if mine,else NULL */ |
| 27 | #endif |
| 28 | #else |
| 29 | #define OPT_FIELD_SIZE 64 |
| 30 | #endif |
| 31 | |
| 32 | struct Bootp_t { |
| 33 | uchar bp_op; /* Operation */ |
| 34 | # define OP_BOOTREQUEST 1 |
| 35 | # define OP_BOOTREPLY 2 |
| 36 | uchar bp_htype; /* Hardware type */ |
| 37 | # define HWT_ETHER 1 |
| 38 | uchar bp_hlen; /* Hardware address length */ |
| 39 | # define HWL_ETHER 6 |
| 40 | uchar bp_hops; /* Hop count (gateway thing) */ |
| 41 | ulong bp_id; /* Transaction ID */ |
| 42 | ushort bp_secs; /* Seconds since boot */ |
| 43 | ushort bp_spare1; /* Alignment */ |
| 44 | IPaddr_t bp_ciaddr; /* Client IP address */ |
| 45 | IPaddr_t bp_yiaddr; /* Your (client) IP address */ |
| 46 | IPaddr_t bp_siaddr; /* Server IP address */ |
| 47 | IPaddr_t bp_giaddr; /* Gateway IP address */ |
| 48 | uchar bp_chaddr[16]; /* Client hardware address */ |
| 49 | char bp_sname[64]; /* Server host name */ |
| 50 | char bp_file[128]; /* Boot file name */ |
| 51 | char bp_vend[OPT_FIELD_SIZE]; /* Vendor information */ |
| 52 | }; |
| 53 | |
| 54 | #define BOOTP_HDR_SIZE sizeof(struct Bootp_t) |
| 55 | |
| 56 | /**********************************************************************/ |
| 57 | /* |
| 58 | * Global functions and variables. |
| 59 | */ |
| 60 | |
| 61 | /* bootp.c */ |
| 62 | extern ulong BootpID; /* ID of cur BOOTP request */ |
| 63 | extern char BootFile[128]; /* Boot file name */ |
| 64 | extern int BootpTry; |
| 65 | |
| 66 | |
| 67 | /* Send a BOOTP request */ |
| 68 | extern void BootpRequest(void); |
| 69 | |
| 70 | /****************** DHCP Support *********************/ |
| 71 | extern void DhcpRequest(void); |
| 72 | |
| 73 | /* DHCP States */ |
| 74 | typedef enum { INIT, |
| 75 | INIT_REBOOT, |
| 76 | REBOOTING, |
| 77 | SELECTING, |
| 78 | REQUESTING, |
| 79 | REBINDING, |
| 80 | BOUND, |
| 81 | RENEWING } dhcp_state_t; |
| 82 | |
| 83 | #define DHCP_DISCOVER 1 |
| 84 | #define DHCP_OFFER 2 |
| 85 | #define DHCP_REQUEST 3 |
| 86 | #define DHCP_DECLINE 4 |
| 87 | #define DHCP_ACK 5 |
| 88 | #define DHCP_NAK 6 |
| 89 | #define DHCP_RELEASE 7 |
| 90 | |
| 91 | #define SELECT_TIMEOUT 3000UL /* Milliseconds to wait for offers */ |
| 92 | |
| 93 | /**********************************************************************/ |
| 94 | |
| 95 | #endif /* __BOOTP_H__ */ |