| /* |
| * 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_FIELD_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_FIELD_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_FIELD_SIZE]; /* Vendor information */ |
| }; |
| |
| #define BOOTP_HDR_SIZE sizeof(struct Bootp_t) |
| |
| /**********************************************************************/ |
| /* |
| * 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__ */ |