| wdenk | efee170 | 2002-07-20 20:14:13 +0000 | [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 (CONFIG_COMMANDS & CFG_CMD_DHCP) |
| 22 | #define OPT_SIZE 312 /* Minimum DHCP Options size per RFC2131 - results in 576 byte pkt */ |
| 23 | #else |
| 24 | #define OPT_SIZE 64 |
| 25 | #endif |
| 26 | |
| 27 | typedef struct |
| 28 | { |
| 29 | uchar bp_op; /* Operation */ |
| 30 | # define OP_BOOTREQUEST 1 |
| 31 | # define OP_BOOTREPLY 2 |
| 32 | uchar bp_htype; /* Hardware type */ |
| 33 | # define HWT_ETHER 1 |
| 34 | uchar bp_hlen; /* Hardware address length */ |
| 35 | # define HWL_ETHER 6 |
| 36 | uchar bp_hops; /* Hop count (gateway thing) */ |
| 37 | ulong bp_id; /* Transaction ID */ |
| 38 | ushort bp_secs; /* Seconds since boot */ |
| 39 | ushort bp_spare1; /* Alignment */ |
| 40 | IPaddr_t bp_ciaddr; /* Client IP address */ |
| 41 | IPaddr_t bp_yiaddr; /* Your (client) IP address */ |
| 42 | IPaddr_t bp_siaddr; /* Server IP address */ |
| 43 | IPaddr_t bp_giaddr; /* Gateway IP address */ |
| 44 | uchar bp_chaddr[16]; /* Client hardware address */ |
| 45 | char bp_sname[64]; /* Server host name */ |
| 46 | char bp_file[128]; /* Boot file name */ |
| 47 | char bp_vend[OPT_SIZE]; /* Vendor information */ |
| 48 | } Bootp_t; |
| 49 | |
| 50 | #define BOOTP_HDR_SIZE sizeof (Bootp_t) |
| 51 | #define BOOTP_SIZE (ETHER_HDR_SIZE + IP_HDR_SIZE + BOOTP_HDR_SIZE) |
| 52 | |
| 53 | /**********************************************************************/ |
| 54 | /* |
| 55 | * Global functions and variables. |
| 56 | */ |
| 57 | |
| 58 | /* bootp.c */ |
| 59 | extern ulong BootpID; /* ID of cur BOOTP request */ |
| 60 | extern char BootFile[128]; /* Boot file name */ |
| 61 | extern int BootpTry; |
| 62 | #ifdef CONFIG_BOOTP_RANDOM_DELAY |
| 63 | ulong seed1, seed2; /* seed for random BOOTP delay */ |
| 64 | #endif |
| 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 3 /* Seconds to wait for offers */ |
| 92 | |
| 93 | /**********************************************************************/ |
| 94 | |
| 95 | #endif /* __BOOTP_H__ */ |