/* * 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 #endif /* __NET_H__ */ /**********************************************************************/ /* * BOOTP header. */ #if (CONFIG_COMMANDS & CFG_CMD_DHCP) || defined(CONFIG_CMD_DHCP) #define OPT_SIZE 312 /* Minimum DHCP Options size per RFC2131 - results in 576 byte pkt */ #else #define OPT_SIZE 64 #endif typedef struct { 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_SIZE]; /* Vendor information */ } Bootp_t; #define BOOTP_HDR_SIZE sizeof (Bootp_t) #define BOOTP_SIZE (ETHER_HDR_SIZE + IP_HDR_SIZE + BOOTP_HDR_SIZE) /**********************************************************************/ /* * Global functions and variables. */ /* bootp.c */ extern ulong BootpID; /* ID of cur BOOTP request */ extern char BootFile[128]; /* Boot file name */ extern int BootpTry; #ifdef CONFIG_BOOTP_RANDOM_DELAY ulong seed1, seed2; /* seed for random BOOTP delay */ #endif /* 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 3 /* Seconds to wait for offers */ /**********************************************************************/ #endif /* __BOOTP_H__ */