/* * 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_hdr { u8 bp_op; /* Operation */ # define OP_BOOTREQUEST 1 # define OP_BOOTREPLY 2 u8 bp_htype; /* Hardware type */ # define HWT_ETHER 1 u8 bp_hlen; /* Hardware address length */ # define HWL_ETHER 6 u8 bp_hops; /* Hop count (gateway thing) */ u32 bp_id; /* Transaction ID */ u16 bp_secs; /* Seconds since boot */ u16 bp_spare1; /* Alignment */ struct in_addr bp_ciaddr; /* Client IP address */ struct in_addr bp_yiaddr; /* Your (client) IP address */ struct in_addr bp_siaddr; /* Server IP address */ struct in_addr bp_giaddr; /* Gateway IP address */ u8 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_hdr) /**********************************************************************/ /* * Global functions and variables. */ /* bootp.c */ extern u32 bootp_id; /* ID of cur BOOTP request */ extern int bootp_try; /* Send a BOOTP request */ void bootp_reset(void); void bootp_request(void); /****************** DHCP Support *********************/ void dhcp_request(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 /**********************************************************************/ #endif /* __BOOTP_H__ */