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 #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 extern 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 3000UL /* Milliseconds to wait for offers */ 92 93 /**********************************************************************/ 94 95 #endif /* __BOOTP_H__ */ 96